CN110576804B

CN110576804B - Vehicle window assembly and vehicle

Info

Publication number: CN110576804B
Application number: CN201910736649.2A
Authority: CN
Inventors: 彭颖昊; 游晨云; 曾为斌; 游代波
Original assignee: Fuyao Glass Industry Group Co Ltd
Current assignee: Fuyao Glass Industry Group Co Ltd
Priority date: 2019-08-09
Filing date: 2019-08-09
Publication date: 2021-04-20
Anticipated expiration: 2039-08-09
Also published as: CN110576804A

Abstract

The invention provides a vehicle window assembly and a vehicle. The vehicle window assembly includes: the car window glass is internally embedded with an antenna radiator; the glass frame is arranged on at least one side of the car window glass in an enclosing mode, the glass frame is provided with a passive radio frequency chip, the passive radio frequency chip is electrically connected to the antenna radiating body, and the passive radio frequency chip is used for providing excitation signals for the antenna radiating body so that the antenna radiating body can receive and transmit antenna signals. Through with antenna radiator embedded in door window glass, and in passive radio frequency chip located glass frame, realize the integral type design of RFID electronic tags and door window subassembly, can prevent effectively that RFID electronic tags from being torn, and then realize discerning the identity of vehicle to manage the vehicle effectively.

Description

Vehicle window assembly and vehicle

Technical Field

The invention relates to the technical field of glass and antennas, in particular to a vehicle window assembly and a vehicle.

Background

Radio Frequency Identification (RFID) is commonly called an electronic tag, and is a non-contact automatic Identification technology implemented by using Radio Frequency communication. The RFID electronic tag has the characteristics of small volume, large capacity, long service life, reusability and the like, supports the advantages of quick reading and writing, invisible identification, mobile identification, multi-target identification, positioning, long-term tracking management and the like, and is widely applied to the field of motor vehicle management. If the system is installed on an automobile, the system is used for automatic toll collection on a highway, traffic management, automobile theft prevention and the like. When the RFID electronic tag is installed on a vehicle, the RFID electronic tag is usually required to be attached to a front windshield of the vehicle so as to facilitate the management of the vehicle. However, in practical application in a vehicle, once the RFID tag is torn off, the "identification" of the vehicle cannot be continued. Therefore, how to provide a structure capable of effectively preventing the RFID tag from being torn is a technical problem to be solved.

Disclosure of Invention

The invention provides a vehicle window assembly and a vehicle, wherein the vehicle window assembly can effectively prevent an RFID electronic tag from being torn.

In one aspect, the present invention provides a vehicle window assembly comprising:

the car window glass is internally embedded with an antenna radiator; and

the glass frame is arranged on at least one side of the car window glass in a surrounding mode, a passive radio frequency chip is arranged on the glass frame and electrically connected to the antenna radiating body, and the passive radio frequency chip is used for providing an excitation signal for the antenna radiating body so that the antenna radiating body can receive and transmit antenna signals.

In a possible implementation manner, the glass frame surrounds the side surface of the window glass, a power feed portion is arranged on the side surface of the window glass, the power feed portion is electrically connected or coupled with the antenna radiator through a conductive member, and the passive radio frequency chip is electrically connected with the power feed portion.

In a possible implementation manner, the glass frame is further provided with an antenna spring sheet electrically connected with the passive radio frequency chip, the antenna spring sheet is opposite to the feeding portion, and one end of the antenna spring sheet, which is far away from the glass frame, is elastically abutted and electrically connected with the feeding portion.

In a possible implementation manner, the vehicle window assembly further comprises a circuit board and an amplifier arranged on the circuit board, the circuit board is arranged on the glass frame, and the passive radio frequency chip and the antenna elastic sheet are arranged on the circuit board and electrically connected with the amplifier.

In a possible implementation manner, the passive radio frequency chip and the amplifier are arranged on one side of the circuit board facing the side surface of the window glass and staggered with the feeding portion, and the antenna elastic sheet is arranged on one side of the circuit board facing the side surface of the window glass and directly faces the feeding portion.

In a possible embodiment, the glass frame has a receiving groove, the edge of the window glass is embedded in the receiving groove, a gap is formed between the bottom wall and the side surface of the receiving groove, and the circuit board is arranged in the gap and fixed on the bottom wall of the receiving groove.

In a possible embodiment, the glass frame has a receiving groove, the edge of the window glass is embedded in the receiving groove, the bottom wall of the receiving groove is attached or bonded to the side surface, the bottom wall of the receiving groove has a groove, and the circuit board is fixed in the groove.

In one possible embodiment, the vehicle window glass comprises a first glass layer, a second glass layer and an adhesive layer arranged between the first glass layer and the second glass layer, and the antenna radiator is arranged on the first glass layer; or the antenna radiator is arranged on the second glass layer; or, the antenna radiator is arranged on the bonding layer.

In a possible implementation manner, the antenna radiator includes an antenna element and a matching loop, the matching loop and the antenna element are spaced apart from each other, the matching loop is used for adjusting an impedance of the antenna element, and two ends of the matching loop are electrically connected to the passive radio frequency chip.

In another aspect, the invention further provides a vehicle comprising the vehicle window assembly.

The antenna radiator is embedded in the vehicle window glass, and the passive radio frequency chip is arranged in the glass frame, so that the integrated design of the RFID electronic tag and the vehicle window component is realized, the RFID electronic tag can be effectively prevented from being torn, and the identity of the vehicle can be further identified so as to effectively manage the vehicle; through locating passive radio frequency chip on the window frame, only locate the antenna radiator on window glass, compare in locating passive radio frequency chip in window glass, need not the great clearance of department of separation between first glass layer and the second glass layer in order to accept passive radio frequency chip, and then can reduce the thickness of the adhesive linkage between first glass layer and the second glass layer, and then reduce window glass's cost, simultaneously, only locate the antenna radiator on window glass, can improve window glass's transmittance, also make RFID electronic tags hide in window glass effectively.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a vehicle window assembly according to a first embodiment of the present invention.

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

Fig. 3 is a schematic diagram of a vehicle interacting with a reader according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a vehicle window assembly according to a second embodiment of the present invention.

Fig. 5 is a partially enlarged view of a portion B in fig. 4.

Fig. 6 is a schematic cross-sectional view of a portion of a vehicle window assembly having an antenna radiator according to an embodiment of the present invention.

Fig. 7 is a partially enlarged view of a portion a in fig. 1.

Fig. 8 is a flowchart of a method for manufacturing a vehicle window assembly according to an embodiment of the present invention.

Detailed Description

The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1, fig. 1 is a vehicle window assembly 10 applied to a vehicle according to an embodiment of the present invention. Including but not limited to automobiles, trucks, buses, and the like. Referring to fig. 1 and 2 together, the window assembly 10 includes a window pane 1 and a glass frame 2. The window glass 1 is embedded with an antenna radiator 31. The glass frame 2 is arranged around at least one side of the vehicle window glass 1. The glass frame 2 is provided with a passive radio frequency chip 32. The passive rf chip 32 is electrically connected to the antenna radiator 31. The passive rf chip 32 can provide an excitation signal to the antenna radiator 31, so that the antenna radiator 31 can receive and transmit an antenna signal.

Specifically, referring to fig. 1 and fig. 2, the passive rf chip 32 is a chip of the RFID electronic tag 3, and the antenna radiator 31 is a radiator of the RFID electronic tag 3. In other words, the RFID electronic tag 3 is provided in the vehicle window assembly 10.

The antenna radiator 31 is embedded in the vehicle window glass 1, and the passive radio frequency chip 32 is arranged in the glass frame 2, so that the integrated design of the RFID electronic tag 3 and the vehicle window component 10 is realized, the RFID electronic tag 3 can be effectively prevented from being torn, the identity of the vehicle can be further identified, and the vehicle 100 can be effectively managed; through locating passive radio frequency chip 32 on the window frame, only locate antenna radiator 31 on window glass 1, compare in locating passive radio frequency chip 32 in window glass 1, need not the great clearance of department of separation between first glass layer 14 and the second glass layer 15 in order to accept passive radio frequency chip 32, and then can reduce the thickness of the adhesive linkage between first glass layer 14 and the second glass layer 15, and then reduce the cost of window glass 1, simultaneously, only locate antenna radiator 31 on window glass 1, can improve window glass 1's transmittance, also make RFID electronic tags 3 hide effectively in window glass 1.

In the present invention, "electrically connected" means that electrical conduction between devices is possible.

Specifically, referring to fig. 1 and fig. 3, the RFID tag 3 in the vehicle window assembly 10 is used to cooperate with the reader 200 to identify the vehicle 100, track the vehicle 100, collect information of the vehicle 100, and the like. Specifically, the reader/writer 200 is a read/write terminal device for radio frequency identification, i.e., RFID. The RFID reader-writer can not only read the RFID electronic tag 3, but also erase data, so that the RFID reader-writer is called as a reader-writer 200. The reader-writer 200 is used for reading, writing and storing data of the RFID electronic tag 3, and the RFID electronic tag 3 is a passive transponder. Of course, in other embodiments, the RFID tag 3 may also be an active transceiver.

Referring to fig. 1 and fig. 3, when the vehicle window assembly 10 having the RFID electronic tag 3 is disposed on the vehicle 100, the specific process of the reader 200 for identifying the identity of the vehicle 100 through the RFID electronic tag 3 includes: first, the reader/writer 200 transmits a radio frequency signal through its transmitting antenna and generates an electromagnetic field region as a working region. When the RFID electronic tag 3 enters a magnetic field area generated by the transmitting antenna of the reader/writer 200 along with the vehicle 100, the antenna radiator 31 of the RFID electronic tag 3 receives a radio frequency signal under the effect of spatial coupling, the passive radio frequency chip 32 of the RFID electronic tag 3 converts the radio frequency energy of the received radio frequency signal into direct current energy to supply power to the circuit in the passive radio frequency chip 32 of the RFID electronic tag 3, and then the RFID electronic tag 3 is activated to start working. After the RFID electronic tag 3 is activated, the data information in the memory of the passive radio frequency chip 32 is modulated onto a carrier and is transmitted in a backscattering communication mode, a receiving antenna of the reader-writer 200 receives a carrier signal loaded with the data information and sent from the RFID electronic tag 3, and the carrier signal is sent to a data processing circuit of the reader-writer 200 through the receiving antenna of the reader-writer 200, such as demodulation and decoding, so as to demodulate and decode the received signal and send the signal to a background system for processing, thereby reading the information of the vehicle 100 stored in the RFID electronic tag 3. The vehicle 100 information includes a license plate number and the like. Specifically, the passive radio frequency chip 32 of the RFID tag 3 receives a high frequency chip with a signal frequency of 922MHz to 925 MHz. Specifically, the vehicle 100 having the RFID tag can be sensed by the reader/writer 200 within 6 meters of the main direction.

Each RFID tag 3 has a unique Electronic Code (EPC), and attaching the Electronic Code to the window assembly 10 of the vehicle 100 can form a unique identifier for identifying the vehicle 100. Because the RFID electronic tag 3 exists in the vehicle window assembly 10, each vehicle window assembly 10 has a globally unique code and identity, so that maintenance personnel can accurately identify the factory date and the service life of each vehicle window assembly 10, and regular replacement can be realized, so that the injury caused by batch damage is reduced.

In this embodiment, referring to fig. 3, the window assembly 10 is a front window assembly of the vehicle 100, so that there is no shielding of other structures between the antenna radiator 31 and the reader/writer 200, and the signal transmission efficiency between the RFID electronic tag 3 and the reader/writer 200 is improved, thereby improving the identification efficiency and accuracy of the reader/writer 200 for the vehicle 100. Of course, in other embodiments, the window assembly 10 may also be a rear window assembly or a side window assembly of the vehicle 100.

It is understood that the antenna radiator 31 may be provided on the outer surface or the inner surface of the window glass 1 by those skilled in the art according to the inventive concept of the present invention. Here, the outer surface of the window glass 1 is a surface facing the outside of the vehicle 100. The inner surface of the window glass 1 is a surface facing the interior of the vehicle 100.

Specifically, the glass frame 2 may be disposed around four sides of the window glass 1 to encapsulate four side edges of the window glass 1, so that each layer structure of the window glass 1 forms a whole and the transportation of the window glass 1 is facilitated.

It is understood that the glass frame 2 may be made of metal or nonmetal.

In one possible embodiment, referring to fig. 2, the pane 2 surrounds the side of the pane 1. The side surface of the window glass 1 is provided with a power feeding part 33. The feeding portion 33 and the antenna radiator 31 may be directly welded or electrically connected or coupled through a conductive member. The passive rf chip 32 is electrically connected to the feeding portion 33.

The feeding portion 33 electrically connected with the antenna radiating body 31 is arranged on the side face of the window glass 1, the passive radio frequency chip 32 is electrically connected with the feeding portion 33, so that the passive radio frequency chip 32 is electrically connected with the antenna radiating body 31 through the feeding portion 33, and further, radio frequency signals received by the antenna radiating body 31 can be transmitted to the passive radio frequency chip 32, so that the passive radio frequency chip 32 can convert the radio frequency signals into currents to supply power to circuits in the passive radio frequency chip 32, and data information in a memory of the passive radio frequency chip 32 is transmitted to the reader-writer 200 through the radio frequency signals transmitted by the antenna radiating body 31, and signal transmission between the reader-writer 200 and the RFID electronic tag 3 is achieved.

Specifically, referring to fig. 1, the window glass 1 has a first surface 11 (see fig. 6) and a second surface 12 opposite to each other, and a side surface 13 connected between the first surface 11 and the second surface 12. The first surface 11 is an outer surface of the window glass 1, and the second surface 12 is an inner surface of the window glass 1. The window glass 1 is substantially rectangular or trapezoidal, and the side surfaces 13 include a first side surface 131, a second side surface 132, a third side surface 133 and a fourth side surface 134 which are respectively positioned on the upper side, the lower side, the left side and the right side of the window glass 1. The top, bottom, left, and right sides of the window glass 1 are referred to the viewing angle in fig. 1.

It will be appreciated that the feed 33 is close to the antenna radiator 31 so that the electrical connection path or coupling path between the feed 33 and the antenna radiator 31 is short to reduce the loss of the high frequency radio frequency signal in the transmission path.

For example, referring to fig. 2, when the antenna radiator 31 is disposed on the first side surface 131 close to the upper side of the window glass 1, the power feeding portion 33 is disposed on the first side surface 131. The feeding portion 33 and the antenna radiator 31 may be electrically connected through a conductive line, and signal transmission between the feeding portion 33 and the antenna radiator 31 may also be achieved through inductive coupling.

Of course, in other embodiments, the antenna radiator 31 is provided near the second side 132 or the third side 133 or the fourth side 134 of the window glass 1, and accordingly, the power feeding unit 33 is provided on the side 13 closest to the antenna radiator 31.

Specifically, the feeding portion 33 may be a conductive block disposed on the side surface 13 of the window glass 1, and the passive radio frequency chip 32 may be electrically connected to the feeding portion 33 through a conductive wire, a conductive column, a conductive adhesive, or a flexible circuit board; alternatively, the power feeding portion 33 may be a conductive post or a conductive elastic sheet protruding from the side surface 13 of the window glass 1, and is directly abutted against the pin of the passive rf chip 32 to electrically connect the passive rf chip 32.

In a possible implementation manner, referring to fig. 2, the glass frame 2 is further provided with an antenna spring 34 electrically connected to the passive rf chip 32. The antenna elastic sheet 34 faces the feeding portion 33. One end of the antenna elastic sheet 34, which is far away from the glass frame 2, is elastically abutted and electrically connected with the feeding part 33.

Specifically, the glass frame 2 is annular, and a passive radio frequency chip 32 and a feed portion 33 are arranged on the surface of the inner ring of the glass frame 2. When the glass frame 2 is mounted on the window glass 1, the antenna spring piece 34 elastically abuts against the power feeding portion 33.

When the glass frame 2 encapsulates the vehicle window glass 1, the other end of the antenna elastic sheet 34 abuts against the feeding part 33, so that the passive radio frequency chip 32 is electrically connected with the feeding part 33 through the antenna elastic sheet 34; in addition, in the production, preparation and assembly processes, tolerance exists inevitably between the inner circumferential surface of the glass frame 2 and the outer circumferential surface of the window glass 1, and the antenna elastic sheet 34 is arranged to abut between the inner circumferential surface of the glass frame 2 and the outer circumferential surface of the window glass 1, so that the tolerance between the glass frame 2 and the window glass 1 is absorbed by the antenna elastic sheet 34 through elastic deformation, and further the glass frame 2 and the window glass 1 are not relatively shaken and can be installed more tightly, meanwhile, the antenna elastic sheet 34 can abut against the power feeding part 33 of the window glass 1, and the reliability of electrical connection between the passive radio frequency chip 32 and the antenna radiator 31 is ensured.

Specifically, the number of the feeding portions 33 may be two, and the two feeding portions 33 are electrically connected to two ends of the antenna radiator 31, respectively. The number of the antenna dome 34 may be two. The two antenna spring pieces 34 are electrically connected to the two feeding portions 33, respectively, to form an antenna loop.

As can be understood, referring to fig. 2, the passive rf chip 32 is disposed in a staggered manner with respect to the feeding portion 33.

In other embodiments, the antenna dome 34 may be replaced by other conductive and elastic structures such as a conductive spring, a conductive plastic elastic member, and the like.

In one possible embodiment, referring to fig. 2, the vehicle window assembly 10 further includes a circuit board 35 and an amplifier 36 disposed on the circuit board 35. The circuit board 35 is disposed on the glass frame 2. The passive rf chip 32 and the antenna spring 34 are disposed on the circuit board 35 and electrically connected to the amplifier 36.

Specifically, referring to fig. 2, the circuit board 35 is used for carrying the passive rf chip 32 and the antenna spring 34. The circuit board 35 provides a support carrier for the passive rf chip 32 and the antenna dome 34. The circuit board 35 is further configured to electrically connect the passive rf chip 32 and the antenna dome 34 through an internal circuit. The amplifier 36 includes an amplifying circuit. The amplifier 36 may be electrically connected between the antenna spring 34 and the passive rf chip 32, so as to amplify the rf signal received by the antenna radiator 31, or to amplify the rf signal generated by the rf signal and then emit the amplified rf signal through the antenna radiator 31.

It is understood that the circuit board 35 includes, but is not limited to, a rigid printed circuit board 35 or a flexible circuit board 35.

In one possible embodiment, referring to fig. 2, the passive rf chip 32 and the amplifier 36 are disposed on a side of the circuit board 35 facing the side 13 of the window pane 1 and are offset from the power feed 33. The antenna elastic sheet 34 is disposed on one side of the circuit board 35 facing the side surface 13 of the window glass 1 and directly faces the power feeding unit 33.

Specifically, referring to fig. 2, the circuit board 35 has a first supporting surface 351 and a second supporting surface 352 opposite to each other. The first supporting surface 351 of the circuit board 35 is attached to the surface of the inner ring of the glass frame 2, so that the glass frame 2 supports the circuit board 35; the second support surface 352 of the circuit board 35 faces the side 13 of the window pane 1. The passive rf chip 32, the amplifier 36 and the antenna spring 34 are all disposed on the second supporting surface 352 of the circuit board 35. The antenna spring 34 is disposed right opposite to the feeding portion 33, one end of the antenna spring 34 is fixed on the second supporting surface 352, the other end of the antenna spring 34 abuts against the feeding portion 33, and the passive rf chip 32 and the amplifier 36 are disposed to be offset from the feeding portion 33.

Further, referring to fig. 2, the passive rf chip 32 and the amplifier 36 may be disposed close to the antenna spring 34, so as to shorten a conduction path between the passive rf chip 32, the amplifier 36 and the antenna spring 34 as much as possible, and reduce signal loss between the passive rf chip 32, the amplifier 36 and the antenna spring 34.

In one possible embodiment, referring to fig. 4 and 5, the glass frame 2 has a receiving groove 21. The edge of the window glass 1 is embedded in the accommodating groove 21. A gap 22 is formed between the bottom wall of the receiving groove 21 and the side surface 13. The circuit board 35 is disposed in the gap 22 and fixed to the bottom wall of the accommodating groove 21.

Specifically, the glass frame 2 is a rectangular ring frame. The inner circumferential surface of the glass frame 2 is provided with a receiving groove 21 for receiving the edges of the four sides of the window glass 1, so as to realize the encapsulation of the side surface 13 of the window glass 1 and improve the overall strength of the window assembly 10.

When the antenna radiator 31 is close to the first side 131, a gap 22 may be formed between the first side 131 and a bottom wall of the receiving slot 21 opposite to the first side 131. It can be understood that the bottom wall of the receiving groove 21 opposite to the second side 132, the third side 133 and the fourth side 134 can be respectively attached to the second side 132, the third side 133 and the fourth side 134, so as to tightly connect the glass frame 2 to the window glass 1. In other words, the side of the glass frame 2 provided with the passive rf chip 32 does not affect the encapsulation of the other sides with the window glass 1.

Referring to fig. 4 and fig. 5, the first supporting surface 351 of the circuit board 35 is attached to the bottom wall of the accommodating groove 21. A receiving space is formed between the second supporting surface 352 of the circuit board 35 and the first side 131 of the window pane 1. The receiving space is used for receiving the passive rf chip 32, the amplifier 36, the antenna spring 34, and the like. The antenna elastic sheet 34 abuts between the second supporting surface 352 of the circuit board 35 and the first side surface 131 of the window glass 1, so that the passive radio frequency chip 32 and the amplifier 36 are not pressed by the first side surface 131 of the window glass 1.

Further, in the present invention, other structures may be disposed in the gap 22, for example, a rigid support structure is disposed, and the height of the rigid support structure relative to the circuit board 35 is greater than the height of the passive rf chip 32 and the amplifier 36 but less than the height of the antenna spring 34, so as to prevent the first side 131 of the window glass 1 from pressing the passive rf chip 32 and the amplifier 36 when the second support surface 352 of the circuit board 35 is too small from the first side 131 of the window glass 1 during installation and transportation.

In another possible embodiment, referring to fig. 2, unlike the previous embodiment, the bottom wall of the receiving groove 21 is attached or adhered to the side surface 13. The bottom wall of the housing groove 21 has a groove 23. The circuit board 35 is fixed in the groove 23.

Unlike the previous embodiment, the bottom walls of the receiving grooves 21 in the present embodiment are all attached to the four side surfaces 13 of the window glass 1, so as to prevent the glass frame 2 and the window glass 1 from shaking relatively, thereby improving the overall strength of the window assembly 10.

Referring to fig. 2, when the antenna radiator 31 is close to the first side 131, a bottom wall of the accommodating groove 21 opposite to the first side 131 is attached to the first side 131. The accommodating groove 21 is provided with a groove 23 on the bottom wall attached to the first side surface 131, the size of the groove 23 is matched with the size of the circuit board 35, the size of the groove 23 is smaller than that of the whole glass frame 2, the encapsulation of the glass frame 2 on the four side surfaces 13 of the window glass 1 is not affected basically, and meanwhile, the passive radio frequency chip 32 can be accommodated and hidden.

In one possible embodiment, referring to fig. 6, the vehicle window pane 1 includes a first pane 14, a second pane 15, and an adhesive layer 16 disposed between the first pane 14 and the second pane 15. The antenna radiator 31 is disposed on the first glass layer 14. In other embodiments, the antenna radiator 31 may be disposed on the second glass layer 15; alternatively, the antenna radiator 31 may be provided on the adhesive layer 16.

Specifically, the adhesive layer 16 is used to bond the first glass layer 14 and the second glass layer 15 together in a laminated manner. The thickness of the adhesive layer 16 is not limited and may be set according to actual needs. The preparation method of the vehicle window glass 1 comprises but is not limited to the following steps: forming an antenna radiator 31 on the first glass layer 14, attaching one or more adhesive layers 16 on the surface of the first glass layer 14, covering the second glass layer 15 on the other side of the adhesive layer 16, finally placing the composite body in a high-temperature furnace for heating and pressurizing to melt the adhesive layer 16 and bond the glass on the two sides of the adhesive layer together, and completing the manufacture of the laminated glass after the temperature of the composite body is restored to the normal temperature.

Specifically, the material of the adhesive layer 16 includes, but is not limited to, PVB (polyvinyl butyral), SGP (ionomer), EVA (polymer resin (ethylene-vinyl acetate copolymer)), and the like.

In the present embodiment, the antenna radiator 31 is provided between the first glass layer 14 and the second glass layer 15. Specifically, the antenna radiator 31 may be disposed on the surface of the first glass layer 14 facing the adhesive layer 16, or on the surface of the second glass layer 15 facing the adhesive layer 16, or on the surface of the adhesive layer 16 facing the first glass layer 14, or on the surface of the adhesive layer 16 facing the second glass layer 15, or inside the adhesive layer 16, and the antenna radiator 31 is disposed between the first glass layer 14 and the second glass layer 15, so that the integrity of the window glass 1 is good, and the antenna radiator 31 is not exposed outside and is not easily scratched, damaged, or aged.

In other embodiments, the antenna radiator 31 may be disposed outside the laminated glass. For example, on the first surface 11 or the second surface 12 of the window pane 1.

Specifically, the antenna radiator 31 may be made of a metal material such as copper, aluminum, or silver, and is attached to the surface of the first glass layer 14, the second glass layer 15, or the adhesive layer 16 by foil-coating, or may be formed by plating a metal material such as copper, aluminum, or silver on the surface of the first glass layer 14, the second glass layer 15, or the adhesive layer 16 by magnetron sputtering or vacuum plating, or may be formed by printing a metal material such as copper, aluminum, or silver on the surface of the first glass layer 14, the second glass layer 15, or the adhesive layer 16 by screen printing.

It will be appreciated that the form of the antenna radiator 31 includes, but is not limited to, a microstrip antenna, a slot antenna, etc.

Furthermore, a black ink layer may be printed on the first surface 11 of the window glass 1 in a region corresponding to the antenna radiator 31, so as to cover the antenna radiator 31, thereby achieving an aesthetic decoration effect of hiding the antenna radiator 31, and further achieving an effect of shielding ultraviolet light and reducing radiation intensity.

Specifically, the first glass layer 14 and the second glass layer 15 of the window glass 1 may be tempered glass, so as to improve the mechanical strength of the window glass 1, improve the impact resistance and the knocking resistance, and meanwhile, the first glass layer 14 and the second glass layer 15 have higher strength, so as to protect the antenna radiator 31 strongly, so that the antenna radiator 31 is not easily damaged, and an electrical connection line between the antenna radiator 31 and the passive radio frequency chip 32 is not easily broken, so as to improve the overall impact resistance and the service life of the window assembly 10.

In one possible implementation, referring to fig. 7, the antenna radiator 31 includes an antenna element 311 and a matching loop 312. The matching loop 312 is spaced apart from the antenna element 311. The matching loop 312 is used to adjust the impedance of the antenna element 311. Both ends of the matching ring 312 are electrically connected to the passive rf chip 32.

Referring to fig. 7, the antenna element 311 is in a shape of a transverse strip and is used for emitting electromagnetic waves to the outside. One end of the matching loop 312 is electrically connected to the passive rf chip 32 through one feeding portion 33, and the other end is electrically connected to the passive rf chip 32 through the other feeding portion 33 after completing the trace of the rectangular loop. The matching ring 312 is substantially rectangular. The matching ring 312 has a first side 313, a second side 314 and a third side 315 connected between the first side 313 and the second side 314. The second side 314 is parallel to and spaced apart from the antenna element 311. The first side 313 and the third side 315 extend towards a direction away from said antenna element 311. The ends of the first side 313 and the third side 315, which are not connected to the second side 314, are electrically connected to the passive rf chip 32. The matching loop 312 is used to tune the impedance matching between the passive rf chip 32 and the antenna radiator 31, so as to improve the radiation efficiency of the antenna radiator 31.

Specifically, the length of the antenna element 311 and the dimensions of the first side 313, the second side 314, and the third side 315 of the matching loop 312 may be set according to actual conditions, so that the radiation frequency band of the antenna element 311 is 922 and 925 MHz.

It can be understood that, besides the RFID electronic tag 3, a Digital Broadcasting antenna, a Global Positioning System (GPS) navigation antenna, a Global System for Mobile Communication (GSM) antenna, a Digital Video Broadcasting (DVB-T) antenna, a vehicle-mounted television antenna, etc. may be disposed in the window assembly 10.

Referring to fig. 3, a vehicle 100 is further provided according to an embodiment of the present invention. The vehicle 100 includes the vehicle window assembly 10 according to any of the above embodiments.

In one possible embodiment, the reader/writer 200 is provided obliquely above the front of the vehicle 100. The window assembly 10 may be a front window of the vehicle 100, so as to reduce signal blocking and improve signal transmission efficiency between the RFID electronic tag 3 and the reader/writer 200 in the window assembly 10.

Of course, in other embodiments, the window assembly 10 may also be a rear or side window of the vehicle 100.

In another embodiment, in order to further improve the signal efficiency of the reader/writer 200 with respect to the RFID electronic tag 3 of the vehicle 100 and prevent missing detection and the like, the RFID electronic tag 3 may be provided on the multi-sided window assembly 10 of the window.

Referring to fig. 8, the present invention further provides a method of manufacturing a vehicle window assembly S10. The preparation method S10 is used for preparing the vehicle window assembly 10 described above, and specifically includes the following steps.

S101, forming a vehicle window glass 1, wherein an antenna radiator 31 is arranged in the vehicle window glass 1.

Specifically, step S101 includes, but is not limited to, the steps of: shaping the first glass layer 14; forming an antenna radiator 31 on the surface of the first glass layer 14 by magnetron sputtering, vacuum coating, screen printing or other methods; both ends of the antenna radiator 31 extend to the side of the first glass layer 14; an adhesive layer 16 is arranged on the surface of the first glass layer 14, on which the antenna radiator 31 is arranged; a second glass layer 15 is arranged on the bonding layer 16; melting the adhesive layer 16 to join the first glass layer 14 to the second glass layer 15. The material of the adhesive layer 16 includes, but is not limited to, PVB (polyvinyl butyral), SGP (ionomer), EVA (high molecular resin (ethylene-vinyl acetate copolymer)), and the like.

S102, a power supply unit 33 is formed on a side surface of the window glass 1, and the power supply unit 33 is electrically connected to the antenna radiator 31.

Specifically, both ends of the antenna radiator 31 extend to the side surface of the window glass 1, and two power feeding portions 33 are formed on the side surface of the window glass 1, and the two power feeding portions 33 are electrically connected to both ends of the antenna radiator 31, respectively.

S103, forming the glass frame 2, wherein the glass frame 2 is provided with a passive radio frequency chip 32.

Specifically, step S103 includes, but is not limited to, the steps of: providing a frame body, wherein the frame body is annular; the surface of the inner ring of the frame body is provided with an antenna elastic sheet 34 and a passive radio frequency chip 32, and the antenna elastic sheet 34 is electrically connected with the passive radio frequency chip 32 to form the glass frame 2.

And S104, mounting the glass frame 2 on the peripheral side of the car window glass 1 so as to electrically connect the passive radio frequency chip 32 to the power supply part 33 to form the car window assembly 10.

Specifically, step S104 includes, but is not limited to, the steps of: the glass frame 2 is mounted on the periphery of the window glass 1, so that the antenna elastic sheet 34 abuts against the power feeding portion 33, and the passive radio frequency chip 32 is electrically connected to the power feeding portion 33.

The antenna radiator 31 is arranged in the vehicle window glass 1, and the passive radio frequency chip 32 is arranged in the glass frame 2, so that the integrated design of the RFID electronic tag 3 and the vehicle window component 10 is realized, the RFID electronic tag 3 can be effectively prevented from being torn, the identity of the vehicle can be further identified, and the vehicle 100 can be effectively managed; through locating passive radio frequency chip 32 on the window frame, only locate antenna radiator 31 on window glass 1, compare in locating passive radio frequency chip 32 in window glass 1, need not the great clearance of department of separation between first glass layer 14 and the second glass layer 15 in order to accept passive radio frequency chip 32, and then can reduce the thickness of the adhesive linkage between first glass layer 14 and the second glass layer 15, and then reduce the cost of window glass 1, simultaneously, only locate antenna radiator 31 on window glass 1, can improve window glass 1's transmittance, also make RFID electronic tags 3 hide effectively in window glass 1.

While the foregoing is directed to embodiments of the present invention, it will be appreciated by those skilled in the art that various changes may be made in the embodiments without departing from the principles of the invention, and that such changes and modifications are intended to be included within the scope of the invention.

Claims

1. A vehicle window assembly, comprising:

the car window glass is internally embedded with an antenna radiator; and

the glass frame surrounds the side face of the car window glass, the side face of the car window glass is provided with a feed portion, the feed portion is electrically connected or coupled with the antenna radiating body through a conductive piece, the glass frame is provided with a passive radio frequency chip, the passive radio frequency chip is electrically connected with the feed portion, and the passive radio frequency chip is used for providing an excitation signal for the antenna radiating body so as to enable the antenna radiating body to receive and transmit an antenna signal.

2. The vehicle window assembly as claimed in claim 1, wherein the glass frame is further provided with an antenna spring sheet electrically connected with the passive radio frequency chip, the antenna spring sheet faces the feeding portion, and one end of the antenna spring sheet, which is far away from the glass frame, is elastically abutted and electrically connected with the feeding portion.

3. The vehicle window assembly as claimed in claim 2, further comprising a circuit board and an amplifier disposed on the circuit board, wherein the circuit board is disposed on the glass frame, and the passive radio frequency chip and the antenna dome are disposed on the circuit board and electrically connected to the amplifier.

4. The vehicle window assembly as claimed in claim 3, wherein the passive RF chip and the amplifier are disposed on a side of the circuit board facing the side of the window glass and are offset from the power feeding portion, and the antenna spring is disposed on a side of the circuit board facing the side of the window glass and directly faces the power feeding portion.

5. The window assembly as claimed in claim 4, wherein the glass frame has a receiving groove, an edge of the window glass is fitted into the receiving groove, a gap is formed between a bottom wall of the receiving groove and the side surface, and the circuit board is disposed in the gap and fixed to the bottom wall of the receiving groove.

6. The window assembly of claim 4, wherein the glass frame has a receiving groove, the edge of the window glass is embedded in the receiving groove, the bottom wall of the receiving groove is attached or adhered to the side surface, the bottom wall of the receiving groove has a groove, and the circuit board is fixed in the groove.

7. The vehicle window assembly as claimed in any one of claims 1 to 6, wherein the vehicle window pane comprises a first pane of glass, a second pane of glass and an adhesive layer disposed between the first pane of glass and the second pane of glass, the antenna radiator being disposed on the first pane of glass; or the antenna radiator is arranged on the second glass layer; or, the antenna radiator is arranged on the bonding layer.

8. The vehicle window assembly as claimed in any one of claims 1 to 6, wherein the antenna radiator comprises an antenna element and a matching loop, the matching loop is spaced from the antenna element, the matching loop is used for adjusting the impedance of the antenna element, and two ends of the matching loop are electrically connected to the passive radio frequency chip.

9. A vehicle comprising a vehicle window assembly as claimed in any one of claims 1 to 8.