Anti-pinch glass and vehicle

Abstract

The present application is a kind of anti-pinch glass and vehicle, the anti-pinch glass includes glass layer and at least one anti-pinch structure, anti-pinch structure is arranged on glass layer;Wherein, anti-pinch structure has conductive structure, conductive structure has at least two electrode lines, two electrode lines are located at the edge or near the edge of glass layer, and form a capacitance between two electrode lines.The present application forms an inductive capacitance between at least two electrode lines, which can realize the anti-pinch induction of glass, since two electrode lines are arranged outwardly at the edge or near the edge of glass layer, so as to achieve the purpose of improving the sensitivity of inductive trigger, overcome the problem that the signal difference is large and the inductive ability is limited due to the different contact directions of obstacles to glass.

Description

Technical Field

[0001] This invention relates to the field of automotive parts, and more particularly to an anti-pinch glass and vehicle. Background Technology

[0002] In the anti-pinch structure of car windows, technologies such as Hall effect anti-pinch are often used to achieve the anti-pinch function of the car window glass. However, due to the limitation of the anti-pinch force setting, the anti-pinch glass often cannot respond and retract immediately. Therefore, it can cause damage to vulnerable objects and people (such as fingers).

[0003] There is currently no effective solution to the problem that the contact sensing capability of the sensing electrodes in anti-pinch glass is limited and the sensing signal is weak, which causes the glass to fail to retract in time.

[0004] Therefore, the present invention proposes an anti-pinch glass and vehicle to overcome the defects of the prior art. Summary of the Invention

[0005] The purpose of this invention is to provide an anti-pinch glass and vehicle that can improve the sensitivity of the anti-pinch glass sensor triggering and overcome the situation that the signal difference is large and the sensing ability is limited due to different contact directions of obstacles.

[0006] The objective of this invention can be achieved through the following methods: This invention provides an anti-pinch glass, the anti-pinch glass comprising: Glass layer; At least one anti-pinch structure is disposed on the glass layer; The anti-pinch structure has a conductive structure with at least two electrode lines located at or near the edge of the glass layer, forming a capacitor between the two electrode lines.

[0007] In a preferred embodiment of the present invention, the two electrode wires have an overlapping position, and the two electrode wires are insulated at the overlapping position.

[0008] In a preferred embodiment of the present invention, the overlapping position between the two electrode lines is located at or near the edge of the glass layer.

[0009] In a preferred embodiment of the present invention Of the two electrode wires, at least one electrode wire has multiple bends to create multiple overlapping positions between the two electrode wires; or, The number of electrode lines is greater than two, and different electrode lines overlap each other to form multiple overlapping positions.

[0010] In a preferred embodiment of the present invention, the anti-pinch structure has a substrate layer, the conductive structure is disposed on the substrate layer, and the conductive structure has a connected sensing area and a signal transmission area formed on the substrate layer. The electrode line and the overlapping position are located in the sensing area; The signal transmission area has multiple transmission lines, each of which corresponds to one of the electrode lines. One end of each transmission line extends into the sensing area and is connected to the corresponding electrode line. The other end of each transmission line is located within the signal transmission area or extends to the outside of the substrate layer.

[0011] In a preferred embodiment of the present invention, the substrate layer has a first edge and a second edge, the sensing region is disposed near the first edge of the substrate layer, and the electrode line in the sensing region extends along the first edge of the substrate layer; The transmission line in the signal transmission area extends toward the second edge of the substrate layer and crosses the second edge to the outside of the substrate layer; or... The transmission line in the signal transmission area extends toward the second edge of the substrate layer and is connected to the signal transmission element, and at least a portion of the signal transmission element extends beyond the second edge to the outside of the substrate layer.

[0012] In a preferred embodiment of the present invention, the number of both the sensing area and the signal transmission area is at least one; When the number of the sensing area is one and the number of the signal transmission area is multiple, the multiple signal transmission areas are distributed at intervals, and the multiple transmission lines are dispersedly arranged in the multiple signal transmission areas. When there are multiple sensing areas and multiple signal transmission areas, the multiple signal transmission areas are connected to the corresponding sensing areas, and the multiple transmission lines are distributed in the multiple signal transmission areas.

[0013] In a preferred embodiment of the present invention, when there are multiple sensing regions, the distance between the electrode lines in two adjacent sensing regions is less than or equal to 100 mm.

[0014] In a preferred embodiment of the present invention, the anti-pinch glass is laminated glass; The glass layer includes a first glass layer and a second glass layer, which are stacked and spaced apart. The anti-pinch structure is disposed between the first glass layer and the second glass layer, or the anti-pinch structure is disposed on the outer surface of the first glass layer or the outer surface of the second glass layer.

[0015] In a preferred embodiment of the present invention, the sensing area is disposed near the top edge of the glass layer, and the distance between the electrode line in the sensing area and the top edge of the glass layer is less than or equal to 30 mm.

[0016] In a preferred embodiment of the present invention, at least the top edge of the anti-pinch glass is provided with a protective portion, which is used to prevent external substances from entering between the first glass layer and the second glass layer.

[0017] In a preferred embodiment of the present invention, at least one intermediate film layer is sandwiched between the first glass layer and the second glass layer, the intermediate film layer being used to connect the first glass layer and the second glass layer to fix the anti-pinch structure between the first glass layer and the second glass layer. Wherein, the dielectric constant of at least one of the intermediate films is greater than or equal to 3 and less than or equal to 15.

[0018] In a preferred embodiment of the present invention, the sensing area and at least a portion of the signal transmission area are disposed on the first glass layer, the second glass layer, or the intermediate film layer.

[0019] In a preferred embodiment of the present invention, the sensing area is bent along the thickness direction of the anti-pinch glass to form a vertex position near the top edge of the anti-pinch glass and two end positions away from the top edge of the anti-pinch glass on the sensing area. The overlapping position of the two electrode lines in the sensing area is located at the vertex position.

[0020] The present invention provides a vehicle having the aforementioned anti-pinch glass.

[0021] Based on the above, the features and advantages of the anti-pinch glass and vehicle of the present invention are: By forming a capacitor through at least two electrode lines in the conductive structure, anti-pinch sensing of the glass can be achieved. Furthermore, by placing the two electrode lines outward at or near the edge of the glass layer, the sensitivity to triggering the anti-pinch structure is improved, overcoming the problem of large signal differences and limited sensing capabilities caused by different contact directions of obstacles with the glass. Attached Figure Description

[0022] The following figures are intended only to illustrate and explain the present invention and do not limit the scope of the invention. Wherein: Figure 1 This is a schematic diagram of anti-pinch glass in a three-dimensional coordinate system in the prior art; Figure 2 This is one of the structural schematic diagrams of the anti-pinch structure in the anti-pinch glass of the present invention in a disassembled state; Figure 3 This is one of the front views of the anti-pinch structure in the anti-pinch glass of the present invention; Figure 4 This is the second schematic diagram of the anti-pinch structure in the anti-pinch glass of the present invention in a disassembled state; Figure 5 This is a second front view of the anti-pinch structure in the anti-pinch glass of the present invention; Figure 6 This is the third front view of the anti-pinch structure in the anti-pinch glass of the present invention; Figure 7 This is one of the schematic diagrams showing the distribution of electrode lines and transmission lines in the anti-pinch glass of the present invention; Figure 8 This is a second schematic diagram showing the distribution of electrode lines and transmission lines in the anti-pinch glass of the present invention; Figure 9 This is the fourth front view of the anti-pinch structure in the anti-pinch glass of the present invention; Figure 10 This is the fifth front view of the anti-pinch structure in the anti-pinch glass of the present invention; Figure 11 This is the sixth front view of the anti-pinch structure in the anti-pinch glass of the present invention; Figure 12 This is one of the cross-sectional views of the anti-pinch glass of the present invention; Figure 13 This is a second cross-sectional view of the anti-pinch glass of the present invention; Figure 14 This is the third cross-sectional view of the anti-pinch glass of the present invention; Figure 15 This is the fourth cross-sectional view of the anti-pinch glass of the present invention; Figure 16 This is the fifth cross-sectional view of the anti-pinch glass of the present invention; Figure 17 This is the sixth cross-sectional view of the anti-pinch glass of the present invention; Figure 18 This is the seventh cross-sectional view of the anti-pinch glass of the present invention; Figure 19 This is the eighth cross-sectional view of the anti-pinch glass of the present invention; Figure 20 This is the ninth cross-sectional view of the anti-pinch glass of the present invention.

[0023] The reference numerals in the accompanying drawings of this invention are: 100. Anti-pinch glass; 1. Substrate layer; 2. Conductive structure; 201. Electrode line; 202. Transmission line; 203. Sensing area; 2031. Vertex position; 2032. End position; 204. Signal transmission area; 3. Overlapping position; 4. Signal transmission element; 5. First glass layer; 6. Second glass layer; 7. Protective part; 8. Intermediate film layer. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solutions of this invention, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this invention.

[0025] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] To improve the response speed of anti-pinch glass, existing technologies also employ contact sensing technology to achieve glass retraction and anti-pinch. The application of contact sensing technology can identify obstacles and retract the glass before it generates clamping force, thus avoiding injury. However, when obstacles (such as fingers) touch the upper edge of the anti-pinch glass 100 from different paths, the intensity of the generated sensing signals varies significantly. This makes signal calibration difficult, making it hard to define the range of sensing signals that trigger the anti-pinch action, resulting in a significant increase in the false recognition rate. Often, the anti-pinch glass 100 fails to retract in time, and there is still a high probability of being pinched.

[0028] Specifically, in existing anti-pinch glass 100 technologies, the intensity of the generated sensing signals varies significantly when obstacles (such as fingers) touch the upper edge of the glass from different paths. This often makes it difficult to define the range of sensing signals that trigger the anti-pinch action, leading to a significant increase in the false recognition rate. For example... Figure 1As shown, the upper edge of the anti-pinch glass 100 is simplified to a plane (actually a plane or a curved surface), where the XX' direction is the thickness direction of the anti-pinch glass 100, the YY' direction is the length direction of the anti-pinch glass 100, and the ZZ' direction is the height direction of the anti-pinch glass 100 (i.e. the direction of movement of the car window glass). In existing technologies, the plane (sensing surface) of the sensing electrodes inside the anti-pinch glass 100 is mostly parallel to the anti-pinch glass, that is, mostly on the planes along the length and height of the anti-pinch glass 100. This results in a high signal quantity sensed by the sensing electrodes when an obstacle contacts the anti-pinch glass 100 from the XX' direction. However, in actual applications, obstacles are more likely to contact the anti-pinch glass 100 from the ZZ' and YY' directions. In this case, the signal quantity sensed by the sensing electrodes is only about 20% of the signal quantity generated when the obstacle contacts the anti-pinch glass 100 from the XX' direction (only a small number of sensing electrodes are involved when the obstacle contacts the anti-pinch glass 100 from the ZZ' and YY' directions). Therefore, the contact sensing signal of the sensing electrodes is very weak, and the transmission capability of the sensing signal is very limited. This causes the anti-pinch glass 100 to be unable to retract in time, and the risk of being pinched still exists. The anti-pinch glass 100 of the present invention is designed based on the fact that the top edge of the aforementioned anti-pinch glass 100 has poor sensing ability for obstacles (such as fingers), which leads to a significant increase in the false recognition rate and the inability to retract in time.

[0029] Implementation Method 1

[0030] like Figures 2 to 20 As shown, the present invention provides an anti-pinch glass, which includes a glass layer and at least one anti-pinch structure disposed on the glass layer. The anti-pinch structure has a substrate layer 1 and a conductive structure 2, the conductive structure 2 being disposed on the substrate layer 1. The conductive structure 2 has at least two electrode lines 201 located at or near the edge of the glass layer, forming a capacitor between the two electrode lines 201. By positioning the two electrode lines 201 outwards at or near the edge of the glass layer, the sensitivity to triggering the anti-pinch structure is improved, overcoming the problem of large signal differences and limited sensing capability caused by different contact directions of obstacles with the glass.

[0031] In an optional embodiment of the present invention, such as Figure 7 As shown, there is an overlap position 3 between the two electrode wires 201, and the two electrode wires 201 are insulated at the overlap position 3.

[0032] Furthermore, such as Figures 2 to 20As shown, the anti-pinch structure also includes a substrate layer 1, and a conductive structure 2 is disposed on the substrate layer 1. In this invention, the substrate layer 1 serves as the structural basis, and the conductive structure 2 is disposed on the substrate layer 1. A capacitor is formed by at least two electrode lines 201 in the conductive structure 2, and the overlapping arrangement of the two electrode lines 201 creates a strong capacitive sensing field (i.e., a strong sensing area) at the overlapping point. When an obstacle (such as a finger) approaches or touches this area, it causes a significant change in capacitance, thereby improving the sensitivity to triggering the anti-pinch structure. In addition, the overlapping structure locally concentrates and enhances the sensing signal, helping to overcome the problem of large signal differences caused by different touch directions of obstacles. This makes it easier to calibrate the signal threshold of the anti-pinch structure in this invention, reducing the false recognition rate and effectively improving signal strength and recognition reliability.

[0033] The reason why the overlapping position 3 of the two electrode lines 201 can form a strong capacitive sensing field (i.e., a strong sensing area) is that: at the overlapping point, the two electrode lines 201 can form a structure similar to a parallel-plate capacitor; in addition, at the overlapping point, the two electrode lines 201 coincide in the projection direction, forming a large relative area, while only a very thin insulating layer separates them. This structure makes the basic capacitance value of this area much higher than that of the non-overlapping area. The larger the basic capacitance value, the greater the absolute value of the capacitance change caused when an external obstacle (such as a finger) approaches, and the signal strength is significantly enhanced. At the overlapping position 3 of the two electrode lines 201, the sensing surface can be effectively extended to the narrow thickness direction of the glass. This allows the obstacle to directly cut into the area of ​​dense electric field lines, whether it approaches from the front or the edge of the glass, thus ensuring a sufficiently strong sensing signal under different touch paths.

[0034] In this invention, the substrate layer 1 can be a single layer or multiple layers. When the substrate layer 1 is a single layer, the conductive structure 2 can be disposed on one wall surface of the substrate layer 1; when the substrate layer 1 is multiple layers, the conductive structure 2 can be sandwiched between two adjacent substrate layers 1. The substrate layer 1 can be made of materials such as glass, PET (polyethylene terephthalate), PC (polycarbonate), TAC (cellulose triacetate), PI (polyimide), OCA adhesive (optically transparent film), PVB (polyvinyl butyral), and EVA (ethylene-vinyl acetate copolymer).

[0035] In this invention, the conductive structure 2 can be made of metallic materials (such as metal nanowires, metal wires, metal meshes, etc.), conductive carbon materials (such as graphene, carbon nanotubes, etc.), conductive polymers (such as polypyrrole, PEDOT, etc.), or conductive metal oxide materials (such as indium tin oxide, etc.). The conductive structure 2 can be one or more of the aforementioned metallic materials, conductive carbon materials, conductive polymers, and conductive metal oxide materials. When the conductive structure 2 is made of metallic materials (such as metal wires), it can be bonded and fixed to the substrate layer 1 using an adhesive (such as OCA adhesive), or it can be bonded and fixed to the substrate layer 1 by heating methods such as ultrasonic welding.

[0036] In an optional embodiment of the present invention, the overlap position 3 between the two electrode wires 201 is located at or near the edge of the glass layer. That is, the overlap position 3 of the two electrode wires 201 is set as close as possible to or near the edge of the glass layer, so that the overlap position 3 of the two electrode wires 201 can be as close as possible to the top edge of the glass layer (when the anti-pinch glass is in the installed state). This enhances the contact signal sensing capability of the top edge of the glass layer, ensuring that obstacles can be accurately sensed when they come into contact with the glass from any direction, and ensuring that the anti-pinch glass can retract in time to achieve the purpose of anti-pinch.

[0037] In the conductive structure 2 of the present invention, the arrangement shape of the electrode lines 201 is not limited. In some optional embodiments, such as Figure 8 As shown, at least one of the two electrode lines 201 may have multiple bends (such as wavy or serrated sections) to create multiple overlapping positions 3 between the two electrode lines 201. This allows multiple strong sensing areas to be formed through the two electrode lines 201, improving the utilization rate of the electrode lines 201. Of course, in some other optional embodiments, the number of electrode lines 201 is greater than two, and different electrode lines 201 overlap with each other. That is, one electrode line 201 simultaneously overlaps with multiple electrode lines 201 at multiple overlapping positions 3, thus forming multiple overlapping positions 3. The more overlapping positions 3 there are, the larger the range of the strong sensing area, and the more significant the enhancement effect on the sensing signal.

[0038] In an optional embodiment of the present invention, such as Figures 2 to 9 , Figures 10 to 20As shown, the conductive structure 2 has a connected sensing region 203 and a signal transmission region 204 formed on the substrate layer 1; the electrode line 201 and the overlapping position 3 are located in the sensing region 203; the signal transmission region 204 has multiple transmission lines 202, which correspond one-to-one with multiple electrode lines 201, and one end of each of the multiple transmission lines 202 extends to the sensing region 203 and is connected to the corresponding electrode line 201, that is, each electrode line 201 in the sensing region 203 has an independent signal transmission channel, and the other end of the multiple transmission lines 202 is located inside the signal transmission region 204 or extends to the outside of the substrate layer 1. The sensing area 203 is used to sense touch signals (such as capacitance changes caused when a hand touches the upper edge of the glass). It is the core area for achieving "touch-to-sensitivity," enabling early detection of obstacles without generating clamping force, thereby triggering a glass reversal command to avoid injury. The signal transmission area 204 is used to transmit the signals collected by the sensing area 203 to the control unit outside the glass (such as a vehicle infotainment system), ensuring efficient and stable transmission of the collected signals from the sensing area 203 to the control unit. In this invention, by dividing the function into sensing and signal transmission areas, both sensing sensitivity and signal quality are guaranteed, while facilitating signal processing and external connections, thereby improving the reliability and practicality of the anti-pinch system. This partitioned design also helps optimize the layout of the conductive structure, reduce interference, and improve overall performance.

[0039] Furthermore, the substrate layer 1 has a first edge and a second edge, and the sensing area 203 is disposed near the first edge of the substrate layer 1, with the electrode line 201 in the sensing area 203 extending along the first edge of the substrate layer 1. When the anti-pinch structure is disposed on the glass layer, the first edge of the substrate layer 1 is disposed near the top edge of the anti-pinch glass, thereby making the sensing area 203 as close as possible to the top edge of the anti-pinch glass. This enhances the contact signal sensing capability of the top edge of the anti-pinch glass, ensuring that any obstacle contacting the anti-pinch glass from any direction can be accurately sensed, guaranteeing that the anti-pinch glass can retract in a timely manner, thus achieving the purpose of anti-pinch. Figure 3 and Figure 6 As shown, the transmission line 202 in the signal transmission area 204 extends towards the second edge of the substrate layer 1 and crosses the second edge to the outside of the substrate layer 1. The transmission line 202 is directly electrically connected to the control unit to achieve signal transmission. In this embodiment, the first edge and the second edge can be two opposite sides of the substrate layer 1 or two adjacent sides of the substrate layer 1. This satisfies the requirement that after the anti-pinch glass is assembled, the first edge of the substrate layer 1 is as close as possible to the top edge of the anti-pinch glass to improve signal sensing capability; while the second edge is as far away as possible from the top edge of the anti-pinch glass, allowing the transmission line 202 in the signal transmission area 204 to extend to the bottom of the anti-pinch glass. This position is closer to the vehicle's sheet metal structure, facilitating the wiring of the transmission line 202 and its connection to the control unit.

[0040] Of course, for ease of connection and to enhance signal transmission stability, such as Figures 4 to 6 As shown, the transmission line 202 in the signal transmission area 204 extends towards the second edge of the substrate layer 1 and connects to the signal transmission element 4. At least a portion of the signal transmission element 4 extends beyond the second edge to the outside of the substrate layer 1. The signal transmission element 4 is electrically connected to the control unit to achieve signal transmission. The signal transmission element 4 can be, but is not limited to, an FPC. The FPC is soldered to the transmission line 202 to achieve stable signal transmission.

[0041] In practical applications, when the anti-pinch structure is placed on the glass layer, due to the inherent characteristics of low transparency and high haze (above 5%), ink areas are typically laid out on the corresponding areas of the glass layer to cover the sensing area 203 and the signal transmission area 204, thus enhancing the appearance of the glass. However, the ink areas reduce the transparent area of ​​the glass layer. Therefore, the optimal approach is to use anti-pinch devices with high transparency and low overall haze. Considering that signal transmission requires conductive materials with good conductivity and high flexibility, in some preferred embodiments, thin metal wires can be used as electrode lines 201 and / or transmission lines 202. The diameter of the fine metal wire is less than or equal to 100 μm, preferably less than or equal to 30 μm; optionally, the diameter of the fine metal wire can be 100 μm, 90 μm, 80 μm, 70 μm, 60 μm, 50 μm, 40 μm, 30 μm, 23 μm, 20 μm, 15 μm, 10 μm, 9 μm, 8 μm, 7 μm, 6 μm, 5 μm, 4 μm, 3 μm, 2 μm, 1 μm, etc.

[0042] In an optional embodiment of the present invention, such as Figure 9 As shown, there is one sensing area 203 and one signal transmission area 204. Multiple transmission lines 202 are concentrated in the signal transmission area 204, which is positioned near the edge of the substrate layer 1. This arrangement can significantly increase the area of ​​the blank space on the substrate layer 1, allowing for dimming or other functions to be added to the glass layer. However, dense wiring can easily cause visual defects such as visible wrinkles, strong reflections at specific angles, and rainbow colors at specific angles. Therefore, in some optional embodiments of the present invention, the transmission lines 202 in the signal transmission area 204 can be dispersed, or multiple signal transmission areas 204 can be directly distributed to eliminate visual defects.

[0043] In some alternative embodiments of the present invention, such as Figure 10As shown, the number of sensing areas 203 can be set to one, and the number of signal transmission areas 204 can be multiple. The multiple signal transmission areas 204 are distributed at intervals along the length direction of the sensing area 203, and multiple transmission lines 202 are dispersed in the multiple signal transmission areas 204. This can help to disperse the effects of force and light, eliminate visual defect areas, not only ensure the improvement of sensing ability, but also improve the visual experience.

[0044] Of course, in other alternative embodiments of the present invention, such as Figure 11 As shown, there are multiple sensing areas 203 and multiple signal transmission areas 204. Multiple signal transmission areas 204 are connected to corresponding sensing areas 203, and multiple transmission lines 202 are distributed throughout the multiple signal transmission areas 204, which can also achieve the purpose of eliminating visual defect areas. When there are multiple sensing areas 203, the distance between the electrode lines 201 in two adjacent sensing areas 203 is less than or equal to 100mm. This ensures that the distance between the electrode lines 201 in two adjacent sensing areas 203 is less than the width or length of the obstacle (such as the width or length of a hand), so that a sufficiently strong sensing signal can be obtained when the obstacle approaches from the top edge of the glass, ensuring the timely retraction of the anti-pinch glass.

[0045] More preferably, when there are multiple sensing regions 203, the distance between the electrode lines 201 in two adjacent sensing regions 203 is less than or equal to 10 mm, so as to ensure that the edge position of the substrate layer 1 can have a better sensing effect.

[0046] In an optional embodiment of the present invention, such as Figures 12 to 20 As shown, the anti-pinch glass can be laminated glass, that is, the glass layer includes a first glass layer 5 and a second glass layer 6. The first glass layer 5 and the second glass layer 6 are stacked and spaced apart (the first glass layer 5 and the second glass layer 6 are the inner and outer glass layers of the laminated glass, respectively). The anti-pinch structure is disposed between the first glass layer 5 and the second glass layer 6, or the anti-pinch structure is disposed on the outer surface of the first glass layer 5 or the outer surface of the second glass layer 6.

[0047] Of course, anti-pinch glass can also be a single-pane glass, with the aforementioned anti-pinch structure directly attached to the outer surface of the glass layer to achieve the anti-pinch function. However, scratches and punctures are inevitable during the manufacturing and subsequent use of the glass layer, which can easily damage the conductive structure and, in severe cases, render the anti-pinch sensing capability ineffective. Anti-pinch glass can also be an insulated glass unit, with the aforementioned anti-pinch structure placed on the inner or outer surface of the glass layer to achieve the anti-pinch function.

[0048] The following examples all use laminated glass in automotive applications as an example, where the above-mentioned anti-pinch structure is set on the laminated glass to form anti-pinch glass.

[0049] In an optional embodiment of the present invention, such as Figures 12 to 20 As shown, at least one intermediate film layer 8 is sandwiched between the first glass layer 5 and the second glass layer 6. The intermediate film layer 8 is used to connect the first glass layer 5 and the second glass layer 6 to fix the anti-pinch structure between the first glass layer 5 and the second glass layer 6. In addition, the intermediate film layer 8 can also bond the first glass layer 5 and the second glass layer 6 together to form laminated glass.

[0050] In this embodiment, the dielectric constant of at least one intermediate film layer 8 is greater than or equal to 3 and less than or equal to 15. Specifically, the dielectric constant of at least one intermediate film layer 8 can be 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, etc. Preferably, the dielectric constant of at least one intermediate film layer 8 is greater than or equal to 4 and less than or equal to 6. For example, an anti-pinch glass with an intermediate film layer 8 having a dielectric constant of 5 still has a sensing signal when the shortest distance d=30mm between the conductive structure 2 in the sensing area 203 and the top edge of the glass. The intermediate film layer 8 can be made of materials such as PVB (polyvinyl butyral), EVA (ethylene-vinyl acetate copolymer), and OCA adhesive (optically transparent film). The determination of the dielectric constant of the intermediate film layer 8 was performed under test conditions of 150Hz.

[0051] In an optional embodiment of the present invention, such as Figure 20 As shown, the sensing area 203 in the anti-pinch structure is located near the top edge of the laminated glass, and the distance between the electrode line 201 in the sensing area 203 and the top edge of the laminated glass is less than or equal to 30mm (d≤30mm). Specifically, the distance between the electrode line 201 in the sensing area 203 and the top edge of the laminated glass can be 30mm, 25mm, 20mm, 15mm, 10mm, 9mm, 8mm, 7mm, 6mm, 5mm, 4mm, 3mm, 2mm, 1mm, etc. Preferably, the distance between the electrode line 201 in the sensing area 203 and the top edge of the laminated glass is less than or equal to 10 mm (d≤10 mm). The closer the sensing area 203 is to the edge of the glass, the stronger the sensing signal at the glass edge. When the shortest distance d≤4 mm, and the above-mentioned anti-pinch structure is arranged on the entire surface of the laminated glass, it means that the bonding stability of the laminated glass is mainly affected by the anti-pinch structure and its bonding with the intermediate film layer 8. In order to avoid affecting the vibration resistance of the laminated glass, the peel strength between the anti-pinch structure and the intermediate film layer 8 needs to be greater than or equal to 0.08 N / cm. Optionally, the peel strength between the anti-pinch structure and the intermediate film layer 8 can be 0.1 N / cm, 0.5 N / cm, 2 N / cm, 5 N / cm, etc.

[0052] Furthermore, such as Figure 20As shown, a protective portion 7 is provided at least at the top edge of the laminated glass. The protective portion 7 is used to prevent external substances (such as water vapor) from entering between the first glass layer 5 and the second glass layer 6, thereby avoiding adverse effects such as corrosion of the anti-pinch structure and interference with capacitive sensing. The protective portion 7 can be a sealing structure located at the top edge of the laminated glass. The protective portion 7 can be composed of, but is not limited to, silane coupling agent residues, polymers (such as polyurethane, polyolefins, acrylate polymers, epoxy polymers, etc.), and inorganic wear-resistant particles, as long as it can achieve a stable barrier against the external environment. In some optional embodiments, a glass interlayer film 8 with water vapor barrier function can be used to avoid the adverse effects caused by water vapor ingress.

[0053] In an optional embodiment of the present invention, such as Figure 12 and Figure 13 As shown, the sensing area 203 and at least a portion of the signal transmission area 204 in the anti-pinch structure are disposed on the wall surface of the first glass layer 5 and connected to the intermediate film layer 8, and / or, the sensing area 203 and at least a portion of the signal transmission area 204 in the anti-pinch structure are disposed on the wall surface of the second glass layer 6 and connected to the intermediate film layer 8. That is, when only one anti-pinch structure is provided, the anti-pinch structure can be disposed on the wall surface of the first glass layer 5 and connected to the intermediate film layer 8, or the anti-pinch structure can be disposed on the wall surface of the second glass layer 6 and connected to the intermediate film layer 8; while when two or more anti-pinch structures are provided, multiple anti-pinch structures can be respectively disposed on the wall surface of the first glass layer 5 and connected to the intermediate film layer 8 and the wall surface of the second glass layer 6 and connected to the intermediate film layer 8.

[0054] In another alternative embodiment of the invention, such as Figure 12 and Figure 13As shown, the sensing area 203 and at least a portion of the signal transmission area 204 in the anti-pinch structure are disposed on the wall surface of the intermediate film layer 8 and connected to the first glass layer 5, and / or, the sensing area 203 and at least a portion of the signal transmission area 204 in the anti-pinch structure are disposed on the wall surface of the intermediate film layer 8 and connected to the second glass layer 6. That is, when only one anti-pinch structure is provided, the anti-pinch structure can be disposed on the wall surface of the intermediate film layer 8 and connected to the first glass layer 5, or the anti-pinch structure can be disposed on the wall surface of the intermediate film layer 8 and connected to the second glass layer 6; while when two or more anti-pinch structures are provided, multiple anti-pinch structures can be disposed on the wall surface of the intermediate film layer 8 and connected to the first glass layer 5 and the wall surface of the intermediate film layer 8 and connected to the second glass layer 6, respectively. Because the intermediate film layer 8 has a relatively soft texture, in order to avoid damage to the conductive structure 2 (such as open circuit) caused by bending during operation and transportation, the conductive structure 2 needs to be made of flexible materials such as metal nanowires, metal wires, graphene, and carbon nanotubes. This allows the conductive structure 2 to deform synchronously with the intermediate film layer 8 within a certain range, so as to ensure that the conductive structure 2 can work stably for a long time without being damaged.

[0055] In another alternative embodiment of the invention, such as Figure 14 As shown, without limiting the number of anti-pinch structures (i.e., there can be one or more anti-pinch structures), the sensing area 203 and at least part of the signal transmission area 204 in the anti-pinch structure can be disposed inside the intermediate film layer 8. For example, two intermediate film layers 8 are disposed, and the anti-pinch structure is sandwiched between the two intermediate film layers 8, and the first glass layer 5 and the second glass layer 6 are bonded through the intermediate film layer 8 to form laminated glass. The dielectric constant of at least one intermediate film layer 8 is greater than or equal to 3 and less than or equal to 15. Specifically, the dielectric constant of at least one intermediate film layer 8 can be 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, etc. Preferably, the dielectric constant of at least one intermediate film layer 8 is greater than or equal to 4 and less than or equal to 6. For example, in an anti-pinch glass with an intermediate film layer 8 having a dielectric constant of 5, a sensing signal is still present when the shortest distance d = 30 mm between the conductive structure 2 in the sensing area 203 and the top edge of the glass. The dielectric constant of the intermediate film layer 8 was determined under test conditions of 150 Hz.

[0056] In an optional embodiment of the present invention, such as Figures 15 to 19 As shown, the sensing area 203 in the anti-pinch structure is bent along the thickness direction of the laminated glass, thereby forming a large sensing enhancement area in the thickness direction of the laminated glass. This effectively extends the sensing surface to the narrower thickness direction of the glass, so that even if an obstacle approaches from the top edge of the laminated glass, a sufficiently strong sensing signal can be obtained, ensuring the sensitivity of the laminated glass movement.

[0057] In this embodiment, the bending shape of the anti-pinch structure is defined, and can be as follows: Figure 15 , Figure 16 and Figure 19 The curved bend shown can also be as follows: Figure 17 and Figure 19 The right-angle bend (or other angle bend) shown, regardless of the bend shape, will form a vertex position 2031 near the top edge of the laminated glass and two end positions 2032 away from the top edge of the laminated glass on the sensing area 203. Preferably, the overlap position 3 of the two electrode lines 201 in the sensing area 203 is located at the vertex position 2031. Since the vertex position 2031 on the sensing area 203 is the shortest distance from the top edge of the laminated glass, setting the overlap position 3 of the electrode lines 201 at the vertex position 2031 can maximize the sensing capability of the conductive structure 2.

[0058] Furthermore, such as Figure 19 As shown, the sensing area 203 in the anti-pinch structure is bent 180° along the thickness direction of the laminated glass. That is, after the sensing area 203 in the anti-pinch structure is bent, the two parts of the sensing area 203 are in contact (the included angle between the two parts of the sensing area 203 is 0° or close to 0°). After bending the sensing area 203 in this way, there is no intermediate film layer 8 between the two parts of the sensing area 203, which avoids the appearance defects of bubbles that may exist in the laminated glass. That is, this bending method can achieve a tight fit in structure, avoiding bubbles or poor appearance caused by gaps in the interlayer, and meeting the requirements of glass aesthetics.

[0059] The features and advantages of the anti-pinch glass of this invention are: 1. The anti-pinch glass uses a substrate layer 1 as its structural basis. A conductive structure 2 is set on the substrate layer 1. A capacitor is formed by at least two electrode lines 201 in the conductive structure 2. The overlapping arrangement of the two electrode lines 201 allows for the formation of a strong capacitive sensing field in the overlapping area due to the spatial overlap, thereby improving the sensitivity to the triggering of the anti-pinch structure. In addition, the overlapping structure makes the sensing signal locally concentrated and enhanced, which helps to overcome the problem of large signal differences caused by different touch directions of obstacles. This makes it easier to calibrate the signal threshold of the anti-pinch structure in this invention, reduce the false recognition rate, and effectively improve the signal strength and recognition reliability.

[0060] Second, in this anti-pinch glass, by using an intermediate film layer 8 with a special dielectric constant range, it can not only be used for bonding the anti-pinch structure and the glass layer, but also shorten the distance between the sensing area 203 in the anti-pinch structure and the top edge of the anti-pinch glass, thereby increasing the ability of the top edge of the anti-pinch glass to acquire sensing signals; in addition, by setting a protective part 7 to block the entry of external substances (such as water vapor), it can avoid adverse effects such as corrosion of the anti-pinch structure and interference with capacitive sensing.

[0061] Third, in this anti-pinch glass, the sensing area 203 (electrode line 201) in the anti-pinch structure is set close to and along the top edge of the anti-pinch glass, thereby enhancing the ability of the top edge of the anti-pinch glass to obtain sensing signals so that even if an obstacle approaches from the top edge of the glass, a sufficiently strong sensing signal can be obtained, ensuring the sensitivity of the anti-pinch glass's movement.

[0062] Fourth, in this anti-pinch glass, the sensing area 203 in the anti-pinch structure can be bent along the thickness direction of the anti-pinch glass, thereby forming a large sensing enhancement area in the thickness direction of the anti-pinch glass. This can effectively extend the sensing surface to the narrower thickness direction of the anti-pinch glass, so as to enhance the ability of the top edge of the anti-pinch glass to obtain sensing signals.

[0063] Implementation Method 2

[0064] The present invention provides a vehicle having the aforementioned anti-pinch glass.

[0065] The anti-pinch glass can be the front side window and / or rear side window of the vehicle. Of course, other components in other parts of the vehicle that require opening and closing functions can also adopt the above-mentioned anti-pinch structure design.

[0066] The vehicle of the present invention has the same features and advantages as the aforementioned anti-pinch glass, which will not be repeated here.

[0067] It should be noted that in the description of this application, the terms "first," "second," etc., are used only for descriptive purposes and to distinguish similar objects; there is no order between them, nor should they be construed as indicating or implying relative importance. Furthermore, in the description of this application, unless otherwise stated, "multiple" means two or more.

[0068] The various embodiments described in this specification are presented in a progressive manner. The same or similar parts between the embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments.

[0069] The above are merely a few embodiments of the present invention. Although the embodiments disclosed in the present invention are as described above, the content is only for the purpose of facilitating understanding of the present invention and is not intended to limit the present invention. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of the present invention should fall within the scope of protection of the present invention.

Claims

1. An anti-pinch glass, characterized in that, The anti-pinch glass includes: Glass layer; At least one anti-pinch structure is disposed on the glass layer; The anti-pinch structure has a conductive structure with at least two electrode lines located at or near the edge of the glass layer, forming a capacitor between the two electrode lines.

2. The anti-pinch glass as described in claim 1, characterized in that, The two electrode wires have an overlapping position, and the two electrode wires are insulated at the overlapping position.

3. The anti-pinch glass as described in claim 2, characterized in that, The overlap between the two electrode lines is located at or near the edge of the glass layer.

4. The anti-pinch glass as described in claim 2, characterized in that, Of the two electrode wires, at least one electrode wire has multiple bends to create multiple overlapping positions between the two electrode wires; or, The number of electrode lines is greater than two, and different electrode lines overlap each other to form multiple overlapping positions.

5. The anti-pinch glass as described in any one of claims 2 to 4, characterized in that, The anti-pinch structure has a substrate layer, and the conductive structure is disposed on the substrate layer. The conductive structure has a connected sensing area and a signal transmission area on the substrate layer. The electrode line and the overlapping position are located in the sensing area; The signal transmission area has multiple transmission lines, each of which corresponds to one of the electrode lines. One end of each transmission line extends into the sensing area and is connected to the corresponding electrode line. The other end of each transmission line is located within the signal transmission area or extends to the outside of the substrate layer.

6. The anti-pinch glass as described in claim 5, characterized in that, The substrate layer has a first edge and a second edge, the sensing area is disposed near the first edge of the substrate layer, and the electrode line in the sensing area extends along the first edge of the substrate layer; The transmission line in the signal transmission area extends toward the second edge of the substrate layer and crosses the second edge to the outside of the substrate layer; or, The transmission line in the signal transmission area extends toward the second edge of the substrate layer and is connected to the signal transmission element, and at least a portion of the signal transmission element extends beyond the second edge to the outside of the substrate layer.

7. The anti-pinch glass as described in claim 6, characterized in that, The number of the sensing area and the signal transmission area is at least one; When the number of the sensing area is one and the number of the signal transmission area is multiple, the multiple signal transmission areas are distributed at intervals, and the multiple transmission lines are dispersedly arranged in the multiple signal transmission areas. When there are multiple sensing areas and multiple signal transmission areas, the multiple signal transmission areas are connected to the corresponding sensing areas, and the multiple transmission lines are distributed in the multiple signal transmission areas.

8. The anti-pinch glass as described in claim 7, characterized in that, When there are multiple sensing regions, the distance between the electrode lines in two adjacent sensing regions is less than or equal to 100 mm.

9. The anti-pinch glass as described in claim 5, characterized in that, The anti-pinch glass is laminated glass; The glass layer includes a first glass layer and a second glass layer, which are stacked and spaced apart. The anti-pinch structure is disposed between the first glass layer and the second glass layer, or the anti-pinch structure is disposed on the outer surface of the first glass layer or the outer surface of the second glass layer.

10. The anti-pinch glass as described in claim 9, characterized in that, The sensing area is located near the top edge of the glass layer, and the distance between the electrode line in the sensing area and the top edge of the glass layer is less than or equal to 30 mm.

11. The anti-pinch glass as described in claim 9, characterized in that, At least the top edge of the anti-pinch glass is provided with a protective part, which is used to prevent external substances from entering between the first glass layer and the second glass layer.

12. The anti-pinch glass as described in claim 9, characterized in that, At least one intermediate film layer is sandwiched between the first glass layer and the second glass layer. The intermediate film layer is used to connect the first glass layer and the second glass layer to fix the anti-pinch structure between the first glass layer and the second glass layer. Wherein, the dielectric constant of at least one of the intermediate films is greater than or equal to 3 and less than or equal to 15.

13. The anti-pinch glass as described in claim 12, characterized in that, The sensing area and at least a portion of the signal transmission area are disposed on the first glass layer, the second glass layer, or the intermediate film layer.

14. The anti-pinch glass as described in claim 9, characterized in that, The sensing area is bent along the thickness direction of the anti-pinch glass to form a vertex position near the top edge of the anti-pinch glass and two end positions away from the top edge of the anti-pinch glass on the sensing area. The overlapping position of the two electrode lines in the sensing area is located at the vertex position.

15. A vehicle, characterized in that, The vehicle has anti-pinch glass as described in any one of claims 1 to 14.

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