Vehicle window glass and vehicle

Abstract

The utility model discloses vehicle window glass and a vehicle, and relates to the technical field of vehicle communication.The vehicle window glass comprises a window area and a frame area surrounding the periphery of the window area, and an antenna structure is arranged in the frame area; the antenna structure comprises a first branch line and a second branch line which are sequentially arranged in the frame area in the extending direction of the frame area, and a third branch line arranged on one side of the first branch line and the second branch line in the first direction, the third branch line is coupled with the ends of the first branch line and the second branch line, and the first direction is perpendicular to the extending direction of the frame area. According to the vehicle window glass and the vehicle provided by the invention, the influence of parts in the vehicle on the antenna can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle communication, in particular to a vehicle window glass and a vehicle. BACKGROUND

[0002] With the development of communication technology, the Internet of Vehicles has a higher demand for network bandwidth and transmission rate, and the requirement for the type of antenna on the vehicle is increasingly urgent. The Internet of Vehicles is a technology system that enables vehicles to communicate with other vehicles, infrastructure, pedestrians, and other objects in the surrounding environment. The goal of the Internet of Vehicles is to improve road safety, improve traffic efficiency, and provide better information services for drivers. Specifically, the Internet of Vehicles technology includes vehicle-to-vehicle communication, vehicle-to-infrastructure communication, vehicle-to-pedestrian communication, vehicle-to-network communication, and vehicle-to-grid communication to improve the practicality, convenience, and safety of vehicles during use.

[0003] In order to realize the Internet of Vehicles, an antenna needs to be provided on the vehicle to realize signal transmission and reception. In the prior art, the antenna is provided in the telematics unit, the shark fin, and the on-board diagnostic system. Due to the limited space of the above three components, the antenna is easily subject to signal interference. The prior art can also provide the antenna on the vehicle window glass. However, many cars have glass coating on the front windshield, rear windshield, and sunroof glass to resist ultraviolet radiation, and the coating contains metal components, which greatly affects the performance of the antenna. CONTENT OF THE UTILITY MODEL

[0004] The purpose of the present application is to provide a vehicle window glass and a vehicle that can reduce the influence of vehicle components on the antenna.

[0005] An embodiment of the present application provides a vehicle window glass, which includes a window area and a frame area surrounding the periphery of the window area. An antenna structure is provided in the frame area. The antenna structure includes a first branch line and a second branch line provided in the frame area in sequence along the extension direction of the frame area, and a third branch line provided on one side of the first branch line and the second branch line along a first direction. The third branch line is coupled to the end of the first branch line and the second branch line, respectively. The first direction is perpendicular to the extension direction of the frame area.

[0006] As an implementable way, the third branch line is provided on the side close to the window area, and there is a gap between the third branch line and the boundary of the window area.

[0007] As an implementable way, a grounding point is provided between the first branch line and the second branch line, and the first branch line and the second branch line are connected through the grounding point.

[0008] As an implementable way, the third branch line is coupled to the first branch line and the second branch line through a bent line, and is coupled to a signal access point.

[0009] As an implementable manner, the grounding point and the signal access point are respectively connected with coaxial lines, the other ends of the coaxial lines are used for connecting with the radio frequency interface, and the coaxial lines include a core wire layer and a shielding layer wrapping the core wire layer.

[0010] As an implementable manner, the signal access point and the grounding point are arranged along a direction close to the window area, and the first branch line and the second branch line are close to each other on one side, and the edges of the first branch line and the second branch line are irregular edges and are funnel-shaped towards the third branch line.

[0011] As an implementable manner, the third branch line includes an extension part extending into the first branch line and the second branch line, and the extension part gradually increases in cross-sectional area along the direction close to the window area.

[0012] As an implementable manner, the width direction of the antenna structure is along a direction away from the window area, and the length direction of the antenna structure is along the extension direction of the frame area, and the length of the antenna structure is 2-3 times the width of the antenna structure.

[0013] As an implementable manner, the lengths of the first branch line and the second branch line along the extension direction of the frame area are different.

[0014] The embodiment of the present application also provides a vehicle including a vehicle frame and the vehicle window glass.

[0015] The beneficial effects of the embodiment of the present application include:

[0016] The vehicle window glass provided by the present application includes a window area and a frame area surrounding the periphery of the window area, an antenna structure is arranged in the frame area, the antenna structure includes a first branch line and a second branch line arranged in the frame area in sequence along the extension direction of the frame area, and a third branch line arranged on one side of the first branch line and the second branch line along a first direction, the first branch line and the second branch line respectively extend along the extension direction of the frame area, the area of the frame area can be fully utilized, the third branch line is coupled with the end portions of the first branch line and the second branch line, so that the third branch line is located between the first branch line and the second branch line, the space along the first direction in the frame area is utilized, the third branch line is coupled with the end portions of the first branch line and the second branch line along the first direction, the first direction is perpendicular to the extension direction of the frame area, through the arrangement of the first branch line, the second branch line and the third branch line, the antenna structure can be located in the relatively narrow frame area, so that the antenna structure is isolated from the glass film of the window area. The antenna structure is also arranged at a certain distance from other parts of the vehicle. Therefore, the vehicle window glass provided by the embodiment of the present application can reduce the influence of the parts in the vehicle on the antenna. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be considered as limiting the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0018] Figure 1 A structural schematic diagram of a vehicle window glass provided by the embodiments of the present application;

[0019] Figure 2 A structural schematic diagram of a vehicle window glass provided by the embodiments of the present application; Figure 1 An enlarged view of A in FIG. 1;

[0020] Figure 3 An S11 curve diagram of an antenna structure provided by the embodiments of the present application;

[0021] Figure 4 An antenna efficiency curve diagram of an antenna structure provided by the embodiments of the present application.

[0022] Figure: 100-vehicle window glass; 110-window area; 120-border area; 130-antenna structure; 131-first branch; 132-second branch; 133-third branch; 134-ground point; 135-signal access point; 140-coaxial line; 150-radio frequency interface. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0024] In the description of the present application, it should be noted that the orientation or position relationship indicated by the terms “center”, “vertical”, “horizontal”, “inner”, “outer” and the like is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship when the product of the present application is usually placed, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms “first”, “second”, “third” and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0025] With the development of the Internet of Vehicles, the setting of the antenna gradually develops in the direction of anti-interference and full frequency band, and the setting of the antenna in the prior art is more or less affected by the vehicle itself.

[0026] The vehicle window glass provided in the embodiments of the present application comprises a window area 110 and a frame area 120 surrounding the periphery of the window area 110, and an antenna structure 130 is arranged in the frame area 120. Figure 1 and Figure 2 The antenna structure 130 comprises a first branch line 131 and a second branch line 132 arranged in the frame area 120 in sequence along the extension direction of the frame area 120, and a third branch line 133 arranged on one side of the first branch line 131 and the second branch line 132 along a first direction, the third branch line 133 being coupled with the end portions of the first branch line 131 and the second branch line 132 respectively, and the first direction being perpendicular to the extension direction of the frame area 120.

[0027] The vehicle window glass provided in the embodiments of the present application is embedded in a vehicle frame and used to provide a visible window between the inside and outside of the vehicle. Specifically, the vehicle window glass 100 provided in the embodiments of the present application comprises a window area 110 and a frame area 120 surrounding the periphery of the window area 110, wherein the window area 110 is used to provide a visible window between the inside and outside of the vehicle, and an antenna structure 130 is arranged in the frame area 120. On the one hand, the antenna structure 130 does not affect the visibility of the window; on the other hand, a glass film for resisting ultraviolet radiation is usually arranged on the window area 110, and the antenna structure 130 is arranged in the frame area 120, so that the antenna structure 130 and the glass film are located in different areas, thereby avoiding the influence of the glass film on the performance of the antenna structure 130, and the antenna structure 130 is arranged at a certain distance from other parts of the vehicle. Therefore, the vehicle window glass provided in the embodiments of the present application can reduce the influence of the parts in the vehicle on the antenna.

[0028] More specifically, the antenna structure 130 of the embodiment of the present application comprises a first branch line 131 and a second branch line 132 arranged in sequence along the extension direction of the frame area 120, wherein the first branch line 131 and the second branch line 132 respectively extend along the extension direction of the frame area 120, so that the area of the frame area 120 can be fully utilized; a third branch line 133 is arranged on one side of the first branch line 131 and the second branch line 132 along the first direction, and the third branch line 133 is coupled with the end of the first branch line 131 and the second branch line 132 respectively, so that the third branch line 133 is located between the first branch line 131 and the second branch line 132, and the space of the frame area 120 along the first direction is utilized, and the arrangement of the first branch line 131, the second branch line 132 and the third branch line 133 makes the antenna structure 130 capable of being located in the relatively narrow frame area 120, so that the antenna structure 130 is isolated from the glass film of the window area 110.

[0029] In summary, the embodiment of the present application sets the antenna structure 130 as three branch lines, so that the antenna structure 130 has a long and narrow shape, thereby making the antenna structure 130 capable of being arranged on the frame area 120, and further making the antenna structure 130 isolated from the glass film of the window area 110, thereby avoiding the influence of the glass film on the performance of the antenna structure 130.

[0030] Among them, the first direction is the direction perpendicular to the extension direction of the frame area 120, that is, the direction from the window area 110 to the frame area 120, that is, the direction from the inside to the outside; and the extension direction of the frame area 120 is the circumferential direction of the outer periphery.

[0031] In actual application, in order to make the vehicle window glass 100 achieve the visual effect, the window area 110 occupies most of the area of the vehicle window glass 100, that is, the width (first direction) of the frame area 120 is relatively narrow, less than 50mm, and the embodiment of the present application makes the width of the antenna structure 130 about 40mm through the layout of the antenna structure 130.

[0032] Specifically, the specific setting position of the vehicle window glass 100 is not limited in the embodiments of the present application, and can be any position as long as the antenna structure 130 can be conveniently installed, for example, the front windshield, the rear windshield, the sunroof glass, etc. It should be noted that the antenna structure 130 needs to be connected with the radio frequency interface 150 on the vehicle, and the person skilled in the art can set the position of the antenna structure 130 on which vehicle window glass 100 according to the position of the radio frequency interface 150. In addition, the specific structure of the vehicle window glass 100 is not limited in the embodiments of the present application, and can be a double-layer laminated glass with a thickness of 4.4 mm, or a single-layer glass with a thickness of 2.1 mm. In addition, in order to make the antenna structure 130 and the glass film have a larger distance, the antenna structure 130 and the glass film can be arranged on opposite sides of the glass. When the glass is a double-layer laminated glass, the antenna structure 130 can be arranged between the double-layer laminated glass, which can also protect the antenna structure 130.

[0033] The antenna structure 130 can be a transparent nano-silver structure or an opaque copper foil structure. When the antenna structure 130 is a transparent nano-silver structure, the light transmittance of the antenna structure 130 is 80%.

[0034] The vehicle window glass 100 provided by the present application comprises a window area 110 and a frame area 120 surrounding the periphery of the window area 110, and the antenna structure 130 is arranged in the frame area 120. The antenna structure 130 comprises a first branch line 131 and a second branch line 132 arranged in the frame area 120 in sequence along the extension direction of the frame area 120, and a third branch line 133 arranged on one side of the first branch line 131 and the second branch line 132 along a first direction. The first branch line 131 and the second branch line 132 respectively extend along the extension direction of the frame area 120, so as to make full use of the area of the frame area 120. The third branch line 133 is coupled with the end portions of the first branch line 131 and the second branch line 132 respectively, so that the third branch line 133 is located between the first branch line 131 and the second branch line 132. The third branch line 133 is coupled with the end portions of the first branch line 131 and the second branch line 132 respectively by using the space of the frame area 120 along the first direction, and the first direction is perpendicular to the extension direction of the frame area 120. Through the arrangement of the first branch line 131, the second branch line 132 and the third branch line 133, the antenna structure 130 can be located in the relatively narrow frame area 120, so as to isolate the antenna structure 130 from the glass film of the window area 110. In addition, the antenna structure 130 is arranged at a certain distance from other components of the vehicle. Therefore, the vehicle window glass provided by the embodiments of the present application can reduce the influence of the components in the vehicle on the antenna.

[0035] Optionally, as shown in FIG. 6, the vehicle window glass 100 provided by the present application can further comprise a radio frequency interface 150 arranged on the vehicle window glass 100. The radio frequency interface 150 is arranged on the vehicle window glass 100, and the antenna structure 130 is arranged on the vehicle window glass 100. The radio frequency interface 150 can be arranged on the vehicle window glass 100 in any position, for example, the radio frequency interface 150 can be arranged on the glass film of the window area 110, or the radio frequency interface 150 can be arranged on the frame area 120. Figure 1 and Figure 2As shown, the third branch line 133 is arranged near one side of the window area 110, and a gap is arranged between the third branch line 133 and the boundary of the window area 110.

[0036] It can be understood that the antenna structure 130 needs to be connected with the radio frequency interface 150, so that the radio frequency interface 150 controls the transceiving signal of the antenna structure 130. In order to facilitate the connection between the antenna structure 130 and the radio frequency interface 150, the third branch line 133 is arranged near one side of the window area 110, and a space is reserved for the connection with the radio frequency interface 150.

[0037] In addition, in order to avoid the influence of the antenna structure 130 caused by the close distance between the boundary of the window area 110 and the third branch line 133, the gap is arranged between the third branch line 133 and the boundary of the window area 110, so that the gap is arranged between the glass film and the third branch line 133, and the influence between the glass film and the third branch line 133 is reduced.

[0038] In an implementable manner of the embodiment of the application, as shown in Figure 1 and Figure 2 The ground point 134 is arranged between the first branch line 131 and the second branch line 132, and the first branch line 131 and the second branch line 132 are connected through the ground point 134.

[0039] The first branch line 131 and the second branch line 132 are connected through the ground point 134, which is used for grounding the first branch line 131 and the second branch line 132.

[0040] Optionally, as shown in Figure 1 and Figure 2 The third branch line 133 is coupled with the first branch line 131 and the second branch line 132 through the bent line, and is coupled with the signal access point 135.

[0041] In order to realize the coupling between the third branch line 133 and the first branch line 131 and the second branch line 132, and to isolate the third branch line 133 from the ground point 134, the third branch line 133 is connected to the signal access point 135 through the bent line, and the radio frequency signal is accessed through the signal access point 135.

[0042] In an implementable manner of the embodiment of the application, as shown in Figure 1 and Figure 2 The ground point 134 and the signal access point 135 are respectively connected with the coaxial line 140, and the other end of the coaxial line 140 is used for connecting with the radio frequency interface 150. The coaxial line 140 includes a core wire layer and a shielding layer wrapping the core wire layer.

[0043] In the application, the ground signal and the access signal are connected with the radio frequency interface 150, in order to avoid mutual interference between the ground signal and the access signal, the application embodiment connects the grounding point 134 and the signal access point 135 to the coaxial line 140 respectively, the coaxial line 140 includes a core wire layer and a shielding layer wrapping the core wire layer, in this way, the wiring signal and the access signal propagate in the core wire layer of the corresponding coaxial line 140 respectively, the shielding layer isolates the core wire layers of the two coaxial lines 140, thereby avoiding mutual interference between the ground signal and the access signal.

[0044] Optionally, as shown in Figure 1 and Figure 2 , the signal access point 135 and the grounding point 134 are arranged along the direction close to the window area 110, and on the side close to each other of the first branch line 131 and the second branch line 132, the edges of the first branch line 131 and the second branch line 132 are irregular edges and are funnel-shaped towards the third branch line 133.

[0045] The side close to each other of the first branch line 131 and the second branch line 132 is set as an irregular edge and is funnel-shaped towards the third branch line 133, in this way, the irregular edge can tune the impedance matching of different frequency bands, so that in each branch line frequency band, different frequencies have smaller impedance, thereby reducing the transmission loss of the antenna structure 130.

[0046] The third branch line 133 is set as funnel-shaped towards the third branch line 133, which reserves space for the coupling of the third branch line 133 with the first branch line 131 and the second branch line 132, facilitating the coupling of the three branch lines.

[0047] In an implementable manner of the application embodiment, as shown in Figure 1 and Figure 2 , the third branch line 133 includes an extension part extending into the first branch line 131 and the second branch line 132, the extension part gradually increases in cross-sectional area along the direction close to the window area 110.

[0048] In order to enable the coupling of the third branch line 133 with the first branch line 131 and the second branch line 132, the third branch line 133 is provided with an extension part, in order to match the structure of the first branch line 131 and the second branch line 132, the extension part gradually increases in cross-sectional area along the direction close to the window area 110.

[0049] Optionally, as shown in Figure 1 and Figure 2 , the width direction of the antenna structure 130 is along the direction away from the window area 110, the length direction of the antenna structure 130 is along the extension direction of the frame area 120, and the length of the antenna structure 130 is 2-3 times the width of the antenna structure 130.

[0050] The length of the antenna structure 130 is 2-3 times the width of the antenna structure 130, so that the antenna structure 130 is in a long strip shape, facilitating being arranged in the frame area 120 and fully utilizing the long strip space of the frame area 120.

[0051] In an implementable manner of the embodiment of the application, as shown in Figure 3 and Figure 4 The lengths of the first branch line 131 and the second branch line 132 along the extension direction of the frame area 120 are different.

[0052] In order to realize the reception of signals of different frequency bands, the lengths of the first branch line 131 and the second branch line 132 along the extension direction of the frame area 120 are set in the embodiment of the application, so that the first branch line 131 and the second branch line 132 are respectively used for transceiving signals of different frequency bands. In this way, the antenna structure 130 of the embodiment of the application can transceive signals of multiple different frequency bands, expand the transceiving frequency bands of the antenna structure 130, and enable the antenna structure 130 to realize the coverage of the super-wide frequency full frequency band. Specifically, the third branch line 133 is a high-frequency array element in the embodiment of the application, which is used for adjusting the impedance value of a high-frequency frequency point. The first branch line 131 and the second branch line 132 are respectively low-frequency band array elements. Through the setting of the lengths of the three branch lines, the frequency of the antenna structure 130 of the embodiment of the application is between 600 MHz and 6000 MHz, which can meet the frequency band requirements of multiple systems such as 2G GSM, 3G, 4G LTE, 5G NR, IOT, CAT-M, NB, WIFI, GNSS, and the like.

[0053] Specifically, the frequency of the signals transceived by the antenna structure 130 is not limited in the embodiment of the application, and a person skilled in the art can set the lengths of the first branch line 131 and the second branch line 132 along the extension direction of the frame area 120 according to actual conditions to realize the transception of signals of different frequencies. For example, the frequency of the signals transceived by the antenna structure 130 can be 600 MHz-960 MHz, 1710 MHz-2690 MHz, and 3300 MHz-6000 MHz.

[0054] In order to verify the transceiving effect of the antenna structure 130 of the embodiment of the application on signals of different frequency bands, the S11 and the antenna efficiency of the antenna structure 130 are tested, and the test results are shown in Figure 3 and Figure 3 As shown in Figure 4 is a curve graph of the S11 of the antenna structure 130. The S11 is the inverse of the return loss of the antenna structure 130, and the unit is dB. Figure 4 It can be seen that the S11 has good return loss performance in the frequency band of 600 MHz-6000 MHz. ​ is a curve graph of the antenna efficiency of the antenna structure 130. ​It can be seen that the antenna structure 130 has a high transmission efficiency in a frequency band of 600MHz-6000MHz.

[0055] The embodiment of the present application also discloses a vehicle, comprising a vehicle frame and the vehicle window glass 100 embedded on the vehicle frame.

[0056] The above merely provides the preferred embodiments of the present application but is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modified, equivalent replaced, improved, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A vehicle glazing, characterised in that, The antenna structure includes a first branch line and a second branch line arranged in sequence along the extending direction of the bezel region, and a third branch line arranged on one side of the first branch line and the second branch line along a first direction, the third branch line being coupled with the end of the first branch line and the second branch line respectively, and the first direction being perpendicular to the extending direction of the bezel region.

2. The vehicle glazing according to claim 1, characterized in that, The third branch line is arranged on the side close to the window region, and there is a gap between the third branch line and the boundary of the window region.

3. The vehicle glazing according to claim 1, characterized in that, A grounding point is arranged between the first branch line and the second branch line, and the first branch line and the second branch line are connected through the grounding point.

4. The vehicle glazing according to claim 3, characterized in that, The third branch line is coupled with the first branch line and the second branch line through a bending line respectively, and is coupled with a signal access point.

5. The vehicle glazing according to claim 4, characterized in that, The signal access point and the grounding point are respectively connected with coaxial lines, the other end of the coaxial lines being used for connecting with a radio frequency interface, and the coaxial line including a core wire layer and a shielding layer wrapping the core wire layer.

6. The vehicle glazing according to claim 4, characterized in that, The signal access point and the grounding point are arranged along the direction close to the window region, and on the side where the first branch line and the second branch line are close to each other, the edge of the first branch line and the second branch line is irregular, and is funnel-shaped towards the third branch line.

7. The vehicle glazing according to claim 6, characterized in that, The third branch line includes an extending part extending into the first branch line and the second branch line, the extending part being gradually increased in cross-sectional area along the direction close to the window region.

8. The vehicle glazing according to claim 1, characterized in that, The width direction of the antenna structure is along the direction away from the window region, the length direction of the antenna structure is along the extending direction of the bezel region, and the length of the antenna structure is 2-3 times of the width of the antenna structure.

9. The vehicle glazing according to claim 3, characterized in that, The length of the first branch line and the second branch line along the extending direction of the bezel region is different.

10. A vehicle characterized by comprising: The vehicle window glass includes a vehicle frame and the vehicle window glass as claimed in any one of claims 1-9 embedded in the vehicle frame.

Images