CN213520301U - Antenna glass assembly and vehicle - Google Patents
Antenna glass assembly and vehicle Download PDFInfo
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- CN213520301U CN213520301U CN202021770442.1U CN202021770442U CN213520301U CN 213520301 U CN213520301 U CN 213520301U CN 202021770442 U CN202021770442 U CN 202021770442U CN 213520301 U CN213520301 U CN 213520301U
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Abstract
The application discloses antenna glass subassembly and vehicle, antenna glass subassembly includes: a glass member; the antenna is arranged on the glass piece or at least partially embedded in the glass piece; the temperature adjusting structure is arranged on the glass piece or is arranged at intervals with the glass piece, and the temperature adjusting structure is used for refrigerating or heating; and the heat conduction structure is connected between the antenna and the temperature regulation structure so as to conduct heat between the antenna and the temperature regulation structure. The application provides an antenna glass subassembly and vehicle, the temperature of antenna in the adjustable glass subassembly to reduce high temperature, low temperature to the influence of the radiation performance of antenna, improve the radiation stability of antenna.
Description
Technical Field
The application relates to the technical field of glass and antennas, in particular to an antenna glass assembly and a vehicle.
Background
The window of the vehicle has advantages in terms of position etc. such that an antenna, for example a vehicle mounted antenna unit, can be arranged on the glass component of the window. The integration of an on-board antenna unit with a window pane is a trend in the design of on-board antennas. Since the vehicle-mounted antenna unit is easily heated to a higher temperature, for example, 100 ° or more, in a strong light or high temperature environment, or the temperature of the vehicle-mounted antenna unit in an extremely cold environment can be as low as-55 ℃ or less, such a high temperature or such a low temperature can affect the radiation performance of the vehicle-mounted antenna unit, thereby affecting the normal communication of the intelligent transportation system.
SUMMERY OF THE UTILITY MODEL
The application provides the temperature of antenna among adjustable vehicle's glass subassembly to reduce high temperature, low temperature to the influence of the radiation performance of antenna, improve the radiation stability of antenna.
In one aspect, an embodiment of the present application provides an antenna glass assembly, including:
a glass member;
the antenna is arranged on the glass piece or at least partially embedded in the glass piece;
the temperature adjusting structure is arranged on the glass piece or is arranged at intervals with the glass piece, and the temperature adjusting structure is used for refrigerating or heating; and
a heat conducting structure connected between the antenna and the temperature adjustment structure for conducting heat between the antenna and the temperature adjustment structure.
In another aspect, the present application provides a vehicle including the antenna glass assembly.
According to the antenna glass assembly provided by the embodiment of the application, the temperature adjusting structure is arranged on or outside the glass piece, and the heat conducting structure is arranged between the antenna and the temperature adjusting structure, so that heat conduction between the antenna and the temperature adjusting structure is realized, and the heat of the antenna is transferred to the temperature adjusting structure through the heat conducting structure when the temperature of the antenna is higher, so that the antenna is cooled, and the influence of high temperature on the communication performance of the antenna is prevented; and be used for when the temperature of antenna is lower through heat conduction structure with the heat transfer of temperature regulation structure to the antenna to make the antenna intensification, avoid the influence of low temperature to the communication performance of antenna, can ensure the communication performance stability of antenna under extreme temperature.
Drawings
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 described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, 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 according to an embodiment of the present application.
Fig. 2 is a schematic structural diagram of an antenna glass assembly provided in an embodiment of the present application.
Fig. 3 is a cross-sectional view of the antenna glass assembly provided in fig. 2 taken along line a-a.
Fig. 4 is a cross-sectional view of an antenna according to an embodiment of the present application.
Fig. 5 is a cross-sectional view of an antenna provided in glass according to an embodiment of the present application.
Fig. 6 is a schematic top view of an antenna according to an embodiment of the present application.
Fig. 7 is a schematic diagram of a first dipole element in the antenna provided in fig. 6.
Fig. 8 is a schematic diagram of a partial structure of the antenna provided in fig. 6.
Fig. 9 is a schematic diagram of a partial structure of the antenna provided in fig. 6.
Fig. 10 is a partial cross-sectional view of a first antenna glass assembly provided in an embodiment of the present application.
Fig. 11 is a partial cross-sectional view of a second antenna glass assembly provided in an embodiment of the present application.
Fig. 12 is a partial cross-sectional view of a third antenna glass assembly provided in an embodiment of the present application.
Fig. 13 is a partial cross-sectional view of a fourth antenna glass assembly provided in accordance with an embodiment of the present application.
Fig. 14 is a partial cross-sectional view of a fifth antenna glass assembly provided in an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The embodiments listed in the present application may be appropriately combined with each other.
Referring to fig. 1, an antenna glass assembly 100 and a vehicle 200 are provided in the embodiments of the present application, which can effectively alleviate the influence of the radiation performance of an antenna in a high temperature environment or a low temperature environment. Vehicle 200 includes, but is not limited to, a variety of automobiles, passenger cars, trains, cable cars, racing cars, ambulances, fire trucks, boats, airplanes, etc. having antenna glass assembly 100. The present embodiment is exemplified by taking the vehicle 200 as an automobile.
Referring to fig. 1 and 2, an antenna glass assembly 100 is provided, and the antenna glass assembly 100 may be used as a window of a vehicle 200. The present embodiment is exemplified by taking the antenna glass assembly 100 as a window of an automobile.
Referring to fig. 2 and 3, the antenna glass assembly 100 at least includes a glass member 1, an antenna 2, a temperature adjustment structure 3 and a heat conduction structure 4.
Specifically, the glass member 1 of the present application is a glass sheet applied to a vehicle window, and the glass member 1 may be used as at least one of a front windshield, a sunroof, a side window, and a rear windshield. For the sake of simplicity of description, the present application exemplifies the case where the glass member 1 is mounted on a front windshield. Further, the glass member 1 may be a flat glass, a curved glass, or other shaped glass. In this embodiment, the glass member 1 is curved glass.
Specifically, the glass member 1 includes, but is not limited to, at least one of single-layer glass, laminated glass, composite glass, and the like. The laminated glass comprises at least two glass plates and an adhesive layer sandwiched between the two adjacent glass plates. The composite glass comprises at least one glass sheet and at least one transparent plastic sheet bonded in a laminated manner. In this embodiment, the glass member 1 is exemplified as a laminated glass.
Specifically, referring to fig. 3, the glass member 1 may include an outer glass surface 101 and an inner glass surface 102 disposed opposite to each other, and a glass side surface 103 surrounding the periphery of the glass member 1. The outer glass surface 101 faces the outside of the vehicle, and the inner glass surface 102 faces the inside of the vehicle.
In particular, the antenna 2 is arranged on the glass element 1 or at least partially embedded in the glass element 1. In this embodiment, a part of the antenna 2 may be embedded inside the glass member 1, and a part may be disposed outside the glass member 1. In other embodiments, the antenna 2 may also be located on at least one of the outer glass face 101, the inner glass face 102 and the glass side face 103 of the glass piece 1. Optionally, the types of the antenna 2 include, but are not limited to, an Electronic Toll Collection (ETC) antenna, a Radio Frequency Identification (RFID) antenna, a Digital broadcast 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, and the like.
The temperature adjusting structure 3 is arranged on the glass member 1 or is arranged at intervals with the glass member 1. The temperature adjusting structure 3 is used for cooling or heating when being electrified. The specific position of the temperature adjustment structure 3 is not particularly limited in the present application. The temperature adjustment structure 3 may be provided on at least one of the outer glass surface 101, the inner glass surface 102 and the glass side surface 103 of the glass member 1, and may also be provided at other positions outside the glass member 1, such as on the outer surface of the window frame or in the window frame.
In the present embodiment, referring to fig. 3, the temperature adjustment structure 3 is located in the frame (i.e. the window frame). Alternatively, the temperature adjusting structure 3 may include at least one of a heating element and a cooling element. In the present embodiment, the temperature adjusting structure 3 may include a heating element and a cooling element.
The specific structure of the temperature adjustment structure 3 has a plurality of possible embodiments. In one embodiment, the temperature regulating structure 3 is externally connected to a power source. The power source may be a vehicle power source. Heating or cooling is performed when the temperature adjustment structure 3 is energized. In another embodiment, a power source and a switch connecting the temperature regulating structure 3 and the power source may be integrated within the temperature regulating structure 3. After the switch receives the wired or wireless signal, the temperature adjusting structure 3 and the power supply are conducted, and then heating or cooling is performed.
The heat conducting structure 4 is connected between the antenna 2 and the temperature regulating structure 3. The heat conducting structure 4 is used for heat conduction between the antenna 2 and the temperature regulating structure 3. The heat conducting structure 4 can be a structure with uniform material, and can also be formed by splicing structures with various different materials. The heat conducting structure 4 may directly contact at least part of the antenna 2. The antenna 2 and at least part of the thermally conductive structure 4 are arranged between the outer glass face 101 and the inner glass face 102.
Optionally, the antenna 2 comprises a conductive part and a non-conductive part. Such as radiating elements, transmission lines, feeds, etc. The non-conductive portion is, for example, an insulating dielectric substrate or the like. The heat conducting structure 4 may be an electrically conducting structure or a non-electrically conducting structure. When the heat conducting structure 4 is an electrically conductive structure, the heat conducting structure 4 contacts the non-conductive part of the antenna 2 to reduce the influence of the heat conducting structure 4 on the radiation performance of the antenna 2. When the heat conducting structure 4 is a non-conductive structure, the heat conducting structure 4 may contact the conductive and non-conductive portions of the antenna 2. Accordingly, the heat conducting structure 4 can directly contact the heating element 31 and the cooling element 32 of the temperature adjusting structure 3, and the material of the heat conducting structure 4 can be properly selected to prevent the heat conducting structure 4 from electrically connecting with the temperature adjusting structure 3 as much as possible.
The heat conducting structure 4 is made of a material with a large heat conduction coefficient. The thermal conductivity of the thermally conductive structure 4 may be much greater than the thermal conductivity of the glass element 1. The heat conducting structure 4 may include at least one of a heat conducting metal sheet, a heat conducting metal layer, a heat conducting silica gel sheet, a heat conducting graphite sheet, a heat conducting graphene sheet, a nano carbon copper foil, a heat conducting phase change layer, and a composite heat conducting adhesive layer. The material of the heat conductive metal includes, but is not limited to, metal heat conductive materials such as gold, silver, copper, iron, aluminum, and the like. The material of the composite heat-conducting adhesive layer includes, but is not limited to, heat-conducting adhesives, heat-conducting silicone grease, heat-conducting gel, heat-conducting potting adhesive and other heat-conducting adhesive materials.
According to the antenna glass assembly 100 provided by the embodiment of the application, the temperature adjusting structure 3 is arranged on the glass piece 1 or outside the glass piece 1, and the heat conducting structure 4 is arranged between the antenna 2 and the temperature adjusting structure 3, so that heat conduction between the antenna 2 and the temperature adjusting structure 3 is realized, heat of the antenna 2 is transferred to the temperature adjusting structure 3 through the heat conducting structure 4 when the temperature of the antenna 2 is high, the antenna 2 is cooled, and the influence of high temperature on the communication performance of the antenna 2 is prevented; and be used for when the temperature of antenna 2 is lower through heat conduction structure 4 with the heat transfer of temperature regulation structure 3 to antenna 2 to make antenna 2 heat up, avoid the influence of low temperature to antenna 2's communication performance, can ensure antenna 2's communication performance stability under the limiting temperature.
In this embodiment, the glass member 1 is exemplified as a laminated glass. Specifically, referring to fig. 3, the glass member 1 includes a first glass plate 11 and a second glass plate 12 stacked together, and an adhesive layer 13 sandwiched between the first glass plate 11 and the second glass plate 12. The adhesive layer 13 is used to bond the first glass plate 11 and the second glass plate 12. Of course, in other embodiments, the glass piece 1 may also include three or more glass sheets arranged in a stack. The material of the glass member 1 is not particularly limited, and the glass member 1 includes, but is not limited to, tempered glass suitable for a vehicle window, explosion-proof glass, and the like. The glass member 1 may be curved or flat as a whole. In this embodiment, the glass member 1 is curved as a whole.
The thickness of the adhesive layer 13 may be 0.38mm, 0.76mm, or greater than 1mm, etc. The material of the adhesive layer 13 includes, but is not limited to, polyvinyl butyral (PVB).
The antenna 2 may be a sheet, and the antenna 2 is interposed between the first glass plate 11 and the adhesive layer 13, between the second glass plate 12 and the adhesive layer 13, or inside the adhesive layer 13.
Optionally, referring to fig. 4, the antenna 2 includes a dielectric substrate 21, a radiation unit 22, and a reference ground 23. The dielectric substrate 21 may be a hard substrate or a flexible substrate. The dielectric substrate 21 may be made of an insulating material. In this embodiment, the dielectric substrate 21 is a flexible substrate, which can adapt to the curved surface of the glass member 1 on one hand, and on the other hand, the dielectric substrate 21 is made thinner, so as to reduce the overall thickness of the antenna glass assembly 100.
Referring to fig. 4, the dielectric substrate 21 includes a first surface 211 and a second surface 212 opposite to each other.
Alternatively, a part of the radiation units 22 may be disposed on the first surface 211, another part of the radiation units 22 may be disposed on the second surface 212, the reference ground 23 is disposed on the second surface 212, and the radiation units 22 disposed on the second surface 212 and the reference ground 23 are integrally formed. Of course, in other embodiments, all of the radiating elements 22 are disposed on the first surface 211. The reference ground 23 may be provided at the second face 212.
In this embodiment, the first glass plate 11 faces the outside of the automobile, and the second glass plate 12 faces the inside of the automobile.
Alternatively, referring to fig. 5, the antenna 2 may be disposed between the first glass plate 11 and the adhesive layer 13. The radiating element 22 is arranged between the first glass plate 11 and the dielectric substrate 21, and the reference ground 23 is arranged between the adhesive layer 13 and the dielectric substrate 21. In other embodiments, the position of the reference ground 23 and the radiation unit 22 are interchanged.
Optionally, the antenna 2 is disposed between the second glass plate 12 and the adhesive layer 13. The radiating element 22 is arranged between the adhesive layer 13 and the dielectric substrate 21, and the reference ground 23 is arranged between the second glass plate 12 and the dielectric substrate 21. In other embodiments, the positions of the reference ground 23 and the radiation unit 22 may be interchanged.
Optionally, the antenna 2 is embedded in the adhesive layer 13. In other embodiments, the antenna 2 may also be disposed on the surface of the first glass plate 11 facing away from the second glass plate 12 or on the surface of the second glass plate 12 facing away from the first glass plate 11.
Further, the dielectric substrate 21 may be a transparent structure to increase the overall light transmittance of the antenna glass assembly 100. The material of the dielectric substrate 21 includes, but is not limited to, Liquid Crystal Polymer (LCP), Polyimide (PI), Modified Polyimide (MPI), polyphenylene ether (PPE), polycarbonate, acrylic resin, fluorine resin, or the like. Alternatively, the dielectric substrate 21 may be a Liquid Crystal Polymer (LCP) having a dielectric constant with good temperature stability and frequency stability. The loss tangent angle of the Liquid Crystal Polymer (LCP) at 10GHz can reach 0.0015, and the line loss of the antenna 2 can be greatly reduced. Furthermore, the Liquid Crystal Polymer (LCP) has a low water absorption ratio, and can prevent the antenna 2 from being worn by moisture. The dielectric substrate 21 is made of Liquid Crystal Polymer (LCP), so that the thickness of the dielectric substrate 21 is ultrathin, the design that the antenna 2 is clamped in the interlayer of the glass piece 1 can be realized, the problem that the glass piece 1 is easy to damage when a hard plate is laminated can be well solved, the antenna 2 and the glass piece 1 are integrated, and the yield of the antenna glass assembly 100 reaches over 95 percent. Specifically, the thickness of the dielectric substrate 21 may be about 0.17mm, or even less than 0.1mm, and no groove needs to be formed on the adhesive layer 13 during lamination.
The radiation unit 22 is made of a conductive material. The material of the radiation unit 22 includes, but is not limited to, conductive metal, conductive oxide (fluorine-doped tin oxide, indium tin oxide, etc.), conductive polymer, etc. Conductive metals include, but are not limited to, gold, silver, copper, or platinum, among others.
Alternatively, the radiation unit 22 may be a transparent structure or a non-transparent structure. For example, the radiating element 22 may be a transparent conductive nanomembrane, which may include a Transparent Conductive Oxide (TCO) layer, a metallic silver layer, and/or a silver alloy layer, such that the radiating element 22 is a transparent structure that may increase the overall light transmission consistency of the vehicle window.
In this embodiment, the radiation unit 22 is exemplified as a conductive metal. The radiating element 22 may be in the form of a dipole antenna, a slot antenna, a microstrip antenna, an array antenna, or the like. In this embodiment, the radiation unit 22 is a dipole antenna.
At least a portion of the radiating element 22 may be formed on the first side 211 of the dielectric substrate 21 by coating, printing, or the like. The material of the reference ground 23 may be a conductive metal. The reference ground 23 may be formed on the second side 212 of the dielectric substrate 21 by coating, printing, or the like.
The frequency band of the electromagnetic wave radiated by the radiation unit 22 includes, but is not limited to, a low frequency band of 30 to 300kHz, a medium frequency band of 3 to 3MHz, a frequency band of 300 to 3GHz, a frequency band of 5.8GHz, a frequency band of millimeter wave, and the like.
Referring to fig. 6, the antenna 2 further includes a feeding portion 24. The power feeding unit 24 is provided on the first surface 211 of the dielectric substrate 21. In the present embodiment, the feeding portion 24 and the radiation unit 22 are disposed at an interval, and the feeding portion 24 and the radiation unit 22 may be connected by the microstrip line 26. Of course, in other embodiments, the feeding portion 24 may be coupled with the radiating element 22 by electromagnetic coupling.
The antenna glass assembly 100 further comprises an rf transceiver chip (not shown), which may be disposed in the adhesive layer 13 of the glass laminate or outside the glass member 1. In this embodiment, the radio frequency transceiver chip may be disposed in the window frame. The radio frequency transceiver chip is connected to the feeding portion 24 to transmit the radio frequency signal to the feeding portion 24. The feeding portion 24 transmits the radio frequency signal to the radiation unit 22 to excite the radiation unit 22 to transmit and receive electromagnetic waves of a preset frequency band. In this embodiment, the center frequency of the predetermined frequency band may be 5.8 GHz. In other embodiments, the frequency of the preset frequency band may also be a millimeter wave frequency band. Wherein, the millimeter wave is an electromagnetic wave with the wavelength of 1-10 mm.
The following is an alternative structure of the radiation unit 22 provided in the embodiments of the present application, and the radiation unit 22 protected by the present application includes, but is not limited to, the following embodiments.
Optionally, referring to fig. 6, the radiation unit 22 includes a first array of dipoles 221 and a second array of dipoles 222, which are symmetrically and spaced apart from each other. Wherein the first column of dipoles 221 may include one dipole element, two dipole elements, three dipole elements, four dipole elements, etc. The embodiment is exemplified by the first column of dipoles 221 including three dipole units. The three dipoles of the first column of dipoles 221 are respectively referred to as a first dipole element 223, a second dipole element 224, and a third dipole element 225. Referring to fig. 7, fig. 7 is a partially enlarged view of the first dipole unit 223. The three dipoles of the second column of dipoles 222 are respectively denoted as a fourth dipole element 226, a fifth dipole element 227 and a sixth dipole element 228.
Referring to fig. 6, three dipoles of the first row of dipoles 221 are arranged along the column direction (X-axis direction), three dipoles of the second row of dipoles 222 are arranged along the column direction (X-axis direction), and the first row of dipoles 221 and the second row of dipoles 222 are arranged in mirror symmetry along the row direction (Y-axis direction). The three dipole elements of the first array of dipoles 221 and the three dipole elements of the second array of dipoles 222 may form dipole elements polarized at ± 45 ° to receive circularly polarized and linearly polarized signals.
Referring to fig. 8, a first end of the microstrip 26 is connected to the feeding portion 24, and a second end of the microstrip 26 extends to a position between the first column dipole 221 and the second column dipole 222. The second end of the microstrip line 26 branches toward the first column of dipoles 221 and the second column of dipoles 222, which are denoted as a first microstrip branch 261 and a second microstrip branch 262. The first microstrip branch 261 connects the first column of dipoles 221. The connection mode may be that the first microstrip branch 261 is divided into three branches to connect the first dipole unit 223, the second dipole unit 224 and the third dipole unit 225, respectively.
The second microstrip branch 262 connects the second column of dipoles 222. The connection mode is that the second microstrip branch 262 is divided into three branches to connect the fourth dipole unit 226, the fifth dipole unit 227 and the sixth dipole unit 228, respectively. It should be noted that the line widths of the microstrip line 26, the first microstrip branch 261, and the three branches into which the first microstrip branch 261 is subdivided, and the line widths of the second microstrip branch 262, and the three branches into which the second microstrip branch 262 is subdivided may be equal or unequal, and are not particularly limited.
Further, referring to fig. 8, the antenna 2 further includes a first power dividing circuit 271 and a second power dividing circuit 272. The first power dividing circuit 271 is connected between the first microstrip branch 261 and the first dipole unit 223, the second dipole unit 224, and the third dipole unit 225, and is configured to transmit the radio frequency signal transmission of the first microstrip branch 261 to the first dipole unit 223, the second dipole unit 224, and the third dipole unit 225, respectively. The second power dividing circuit 272 is connected between the second microstrip branch 262 and the fourth dipole unit 226, the fifth dipole unit 227, and the sixth dipole unit 228, and is configured to transmit the radio frequency signal transmission of the second microstrip branch 262 to the fourth dipole unit 226, the fifth dipole unit 227, and the sixth dipole unit 228, respectively. In this embodiment, the first power dividing circuit 271 and the second power dividing circuit 272 can be microstrip power dividing circuits, so that the first power dividing circuit 271, the second power dividing circuit 272 and the microstrip line 26 can be formed by the same process.
The first power dividing circuit 271 can divide power by one to two and by three. The second dipole element 224 has two branches of power, so that the power of the second dipole element 224 is greater than that of the first dipole element 223 and greater than that of the third dipole element 225. Similarly, the second power dividing circuit 272 can divide power by one to two and by three. The fifth dipole unit 227 has two branches of power, so that the power of the fifth dipole unit 227 is greater than that of the sixth dipole unit 228 and greater than that of the fourth dipole unit 226.
In this way, the signal amplitude at the center (the third dipole unit 225, the fifth dipole unit 227) of the antenna 2 array is relatively strong, and the signal amplitudes at the two sides (the first dipole unit 223, the fourth dipole unit 226, the third dipole unit 225, and the sixth dipole unit 228) are relatively weak, so that the lobe width of the directional diagram can be controlled conveniently, and the gain in the main radiation direction can be improved.
In this embodiment, the first power dividing circuit 271 and the second power dividing circuit 272 can be microstrip power dividing circuits, so that the power dividing circuit and the microstrip line 26 can be formed by the same process, thereby saving the process and cost.
Further, referring to fig. 8, the antenna 2 further includes a phase delay circuit 273. A phase delay circuit 273 is connected between the second microstrip branch 262 and the second column of dipole 222 for shifting the phase of the second column of dipole 222 by 180 ° with respect to the phase of the first column of dipole 221, thereby creating an additive pattern of the first column of dipole 221 and the second column of dipole 222, and thereby increasing the gain of the antenna 2.
In this embodiment, the phase delay circuit 273 can be a microstrip circuit, so that the phase delay circuit 273, the power dividing circuit, and the microstrip line 26 can be formed by the same process, thereby saving the process and cost.
Alternatively, referring to fig. 8 and 9, a portion of the radiation units 22 may be disposed on the first surface 211, another portion of the radiation units 22 may be disposed on the second surface 212, the ground 23 is disposed on the second surface 212, and the radiation units 22 disposed on the second surface 212 and the ground 23 are integrally formed.
In other embodiments, the dielectric substrate 21 may be multi-layered. The feeding portion 24 may be disposed between the first surface 211 and the second surface 212; the feeding portion 24 may also be disposed in the projection area of the radiating element 22 on the dielectric substrate 21, and the feeding portion 24 is electrically connected to the radiating element 22 through a conductive via or coupled to the radiating element 22.
Further, referring to fig. 10, the antenna glass assembly 100 further includes a frame 5. The frame 5 is attached around at least part of the edge of the glass element 1. The material of the frame 5 includes, but is not limited to, aluminum alloy, plastic, etc. In particular, the frame 5 may surround the glass side 103 of the glass piece 1 to form a protection at the glass side 103 of the glass piece 1.
Referring to fig. 10, the frame 5 has a receiving slot 51. The opening of the accommodating groove 51 faces the glass side surface 103 of the glass material 1. The temperature adjustment structure 3 may be fixed in the accommodation groove 51. Further, the position of the accommodating groove 51 may be close to the antenna 2 so as to bring the temperature adjustment structure 3 as close as possible to the antenna 2, thereby reducing a heat conduction path between the temperature adjustment structure 3 and the antenna 2.
In this embodiment, the glass member 1 is a laminated glass. I.e. comprising the first glass plate 11 and the second glass plate 12 described above. The antenna 2 is arranged in the interlayer of the laminated glass. The antenna 2 and at least part of the thermally conductive structure 4 are arranged between the outer glass face 101 and the inner glass face 102. A part of the heat conducting structure 4 is arranged in the laminated glass and connected to the antenna 2. Another part of the heat conducting structure 4 extends out of the laminated glass and is located in the accommodating groove 51 and connected with the temperature adjusting structure 3.
Further, at least a portion of the heat conducting structure 4 arranged between the outer glass face 101 and the inner glass face 102 is a flexible transparent structure. Specifically, the heat conducting structure 4 disposed in the laminated glass may be a flexible transparent structure, for example, the heat conducting structure 4 in the laminated glass may be a heat conducting silica gel sheet, which not only can realize heat conduction between the antenna 2 and the temperature adjusting structure 3, but also can realize a transparent effect, and meanwhile, the thickness of the antenna glass assembly 100 is not influenced very little.
Specifically, the antenna 2 includes a top surface 201, a bottom surface 202 and a side surface 203 disposed between the top surface 201 and the bottom surface 202. The heat conducting structure 4 is in the form of a layer. The heat conducting structure 4 may be provided on at least one of the top surface 201 of the antenna 2, the bottom surface 202 of the antenna 2, and the side surface 203 of the antenna 2. The top surface 201 of the antenna 2 faces the outside of the car and the bottom surface 202 of the antenna 2 faces the inside of the car.
Alternatively, referring to fig. 10, the heat conducting structure 4 may be a sheet, and the heat conducting structure 4 may be disposed on the bottom surface 202 of the antenna 2, i.e., between the bottom surface 202 of the antenna 2 and the adhesive layer 13.
Alternatively, referring to fig. 11, the heat conducting structure 4 may be a sheet, and the heat conducting structure 4 may cover the top surface 201 of the antenna 2 and be located between the top surface 201 of the antenna 2 and the first glass plate 11.
Optionally, referring to fig. 12, the heat conducting structure 4 may be a sheet, and the heat conducting structure 4 may also be disposed annularly around the side surface 203 of the antenna 2, so as to uniformly conduct heat to the peripheral side of the antenna 2, and at this time, the thickness of the heat conducting structure 4 may be adjusted to be similar to the thickness of the antenna 2, so that the overall thickness of the antenna glass assembly 100 is not affected by the disposition of the heat conducting structure 4. Alternatively, the heat conducting structure 4 may be connected (directly attached) to any two of the top surface 201 of the antenna 2, the bottom surface 202 of the antenna 2, and the side surface 203 of the antenna 2. Alternatively, the heat conducting structure 4 may be connected (directly attached) to the top surface 201 of the antenna 2, the bottom surface 202 of the antenna 2, and the side surface 203 of the antenna 2 at the same time. I.e. the heat conducting structure 4 is wrapped on the top side, bottom side and peripheral side of the antenna 2.
In a first alternative embodiment, referring to fig. 13, the heat conducting structure 4 includes a first heat conducting section 41 and a second heat conducting section 42 connected to each other. The first heat conducting section 41 is provided in the interlayer of the laminated glass. The first heat conducting section 41 is made of a heat conducting silica gel sheet and/or a heat conducting graphene sheet, so that the first heat conducting section can be in a transparent sheet shape, the hiding performance of the heat conducting structure 4 in the laminated glass is improved, and the overall transparent effect of the antenna glass assembly 100 is improved. The second heat conducting section 42 may be arranged in the frame 5 and connected to the temperature regulating structure 3. The heat transfer coefficient of the second heat transfer section 42 may be greater than that of the first heat transfer section 41. Specifically, the material of the second heat conducting section 42 includes a heat conducting metal sheet and/or a heat conducting metal layer. The first heat conducting section 41 and the second heat conducting section 42 may be formed integrally by injection molding, hot pressing, or the like. Therefore, the spliced conductive structure can simultaneously meet the transparency in the interlayer of the laminated glass and the better heat conduction rate.
In a second alternative embodiment, referring to fig. 14, the heat conducting structure 4 includes a heat conducting carrier 43 and a heat conducting medium 44 disposed in the heat conducting carrier 43. The heat conductive carrier 43 includes a heat conductive silicone sheet. The heat conducting medium 44 includes at least one of particles, heat conducting wires, heat conducting metal mesh, heat conducting metal rods, heat conducting metal sheets, heat conducting graphene particles, heat conducting graphene wires, heat conducting graphene mesh, heat conducting graphene rods, and heat conducting graphene sheets. Optionally, the heat conducting structure 4 comprises a plurality of particles of the heat conducting medium 44, and the plurality of particles of the heat conducting medium 44 are doped in the heat conducting carrier 43. In this way, the heat conductive carrier 43 can ensure the insulation of the heat conductive structure 4, so that the heat conductive structure 4 can directly contact the radiation unit 22 of the antenna 2. The thermal conductivity of the thermal conductive medium 44 may be greater than the thermal conductivity of the thermal conductive carrier 43. The heat transfer medium 44 may be used to increase the rate of heat transfer of the heat transfer structure 4.
Referring to fig. 10, the temperature adjustment structure 3 at least includes a circuit board 33, a cooling element 32, a heating element 31, a temperature sensor 34 and a controller (not shown) disposed on the circuit board 33. The circuit board 33 can be fixed on the groove surface of the receiving groove 51 by means of, but not limited to, bonding, screwing, snap-fit connection, welding, etc. The rf transceiver chip is disposed on the circuit board 33. Further, one end of the antenna 2 may protrude from the interlayer of the laminated glass and protrude into the receiving groove 51. The feeding portion 24 may be disposed on a portion of the antenna 2 extending to the receiving slot 51, such that the feeding portion 24 is close to the rf transceiver chip and connected to the rf transceiver chip.
The cooling element 32, the heating element 31 and the temperature sensor 34 are all in contact with the heat conducting structure 4. The controller is connected with the cooling element 32, the heating element 31 and the temperature sensor 34. The temperature sensor 34 may detect the temperature or the approximate temperature of the antenna 2 through the heat conducting structure 4. When the detection value of the temperature sensor 34 is greater than or equal to the first preset temperature value, the controller controls the cooling element 32 to cool. The first preset temperature value may be an upper limit value of the suitable temperature of the antenna 2, and includes, but is not limited to, 60 ℃, 70 ℃, 85 ℃ or 100 ℃. When the detection value of the temperature sensor 34 is less than or equal to the second preset temperature value, the controller controls the heating element 31 to heat. The second predetermined temperature value may be a lower limit value of the suitable temperature of the antenna 2, and includes, but is not limited to, 10 ℃, 5 ℃, 0 ℃ or-5 ℃ and the like. Thus, the temperature of the antenna 2 is maintained within a predetermined temperature range, which may be 10 ℃ to 60 ℃, 5 ℃ to 50 ℃, or 20 ℃ to 40 ℃.
The cooling element 32 is used for cooling. When the controller controls the cooling element 32 to cool, the temperature of the cooling element 32 is lower than the temperature of the antenna 2, and the heat conducting structure 4 conducts the heat of the antenna 2 to the cooling element 32 to reduce the temperature of the antenna 2 until the temperature of the antenna 2 is within the proper temperature range.
The heating element 31 is used for heating. When the controller controls the heating element 31 to heat, the temperature of the heating element 31 is higher than that of the antenna 2, and the heat conduction structure 4 conducts the temperature of the heating element 31 to the antenna 2 to increase the temperature of the antenna 2 until the temperature of the antenna 2 is within the proper temperature range.
Alternatively, the refrigeration element 32 may be a micro refrigeration element 32, or the like. Specifically, cooling element 32 includes, but is not limited to, at least a portion of a semiconductor cooler. A semiconductor cooler (Thermoelectric cooler) is a device that uses the Thermoelectric effect of a semiconductor to produce cooling energy, and is also called a Thermoelectric cooler. The semiconductor cooler may include a plurality of pairs of semiconductor thermoelectric elements. The semiconductor thermoelectric element is formed by connecting two different semiconductors by conductors, wherein the two semiconductors can be an N-type semiconductor and a P-type semiconductor respectively. After the power supply is switched on, an electron hole pair is generated near one end, the internal energy is reduced, the temperature is reduced, and heat is absorbed to the outside, namely the cold end. The other end is called hot end because the electron hole pair is compounded, the internal energy is increased, the temperature is raised, and heat is released to the environment. Wherein the cold end can be used as a refrigerating element 32, and the hot end can be used as a heating element 31.
In other embodiments, by controlling the current reversal between the semiconductor thermoelectric elements, the cold side of the semiconductor refrigerator can be used as the cooling element 32 and also as the heating element 31.
In other embodiments, the cold end of the semiconductor refrigerator may be used as the cooling element 32, and the heating element 31 includes, but is not limited to, a structure that is energized to generate joule heat, and the like.
In other embodiments, the controller may control the heating element 31 to heat so as to melt snow and frost near the antenna 2, so as to prevent the snow and frost from interfering with the communication function of the antenna 2.
While the foregoing is directed to embodiments of the present application, it will be appreciated by those skilled in the art that various changes and modifications may be made without departing from the principles of the application, and it is intended that such changes and modifications be covered by the scope of the application.
Claims (10)
1. An antenna glass assembly, comprising:
a glass member;
the antenna is arranged on the glass piece or at least partially embedded in the glass piece;
the temperature adjusting structure is arranged on the glass piece or is arranged at intervals with the glass piece, and the temperature adjusting structure is used for refrigerating or heating; and
a heat conducting structure connected between the antenna and the temperature adjustment structure for conducting heat between the antenna and the temperature adjustment structure.
2. The antenna glass assembly of claim 1, further comprising a frame, wherein the frame is attached around at least a portion of the edge of the glass piece, wherein the frame defines a receiving slot, and wherein the temperature regulating structure is secured within the receiving slot.
3. The antenna glass assembly of claim 2, wherein the glass piece is a laminated glass or a composite glass, the glass piece comprising an outer glass face and an inner glass face, the antenna and at least a portion of the thermally conductive structure being disposed between the outer glass face and the inner glass face.
4. The antenna glass assembly of claim 3, wherein at least a portion of the thermally conductive structure disposed between the outer glass face and the inner glass face is a flexible transparent structure.
5. The antenna glass assembly of claim 3, wherein the antenna comprises a top surface, a bottom surface, and a peripheral side surface disposed therebetween, the thermally conductive structure is layered, and the thermally conductive structure is disposed on at least one of the top surface, the bottom surface, and the peripheral side surface of the antenna.
6. The antenna glass assembly of claim 3, wherein the thermally conductive structure comprises at least one of a thermally conductive metal sheet, a thermally conductive metal layer, a thermally conductive silicone sheet, a thermally conductive graphite sheet, a thermally conductive graphene sheet, a nanocarbon copper foil, a thermally conductive phase change layer, and a composite thermally conductive adhesive layer.
7. The antenna glass assembly of claim 6, wherein the heat conducting structure comprises a first heat conducting section and a second heat conducting section connected to each other, the first heat conducting section is disposed in an interlayer of the laminated glass, the first heat conducting section comprises a heat conducting silicone sheet and/or a heat conducting graphene sheet, the second heat conducting section is disposed in the frame and connected to the temperature adjusting structure, and the second heat conducting section comprises a heat conducting metal sheet and/or a heat conducting metal layer.
8. The antenna glass assembly of claim 6, wherein the heat conducting structure comprises a heat conducting carrier and a heat conducting medium disposed in the heat conducting carrier, the heat conducting carrier comprises a heat conducting silicone sheet, and the heat conducting medium comprises at least one of heat conducting metal particles, heat conducting wires, a heat conducting metal mesh, a heat conducting metal rod, a heat conducting metal sheet, heat conducting graphene particles, a heat conducting graphene wire, a heat conducting graphene mesh, a heat conducting graphene rod, and a heat conducting graphene sheet.
9. The antenna glass assembly of any one of claims 2-8, wherein the temperature adjustment structure comprises a cooling element, a heating element, a temperature sensor, and a controller, the cooling element, the heating element, and the temperature sensor all contact the heat conducting structure, the controller is connected to the cooling element, the heating element, and the temperature sensor, and the controller controls the cooling element to cool when a detection value of the temperature sensor is greater than or equal to a first preset temperature value; when the detection value of the temperature sensor is smaller than or equal to a second preset temperature value, the controller controls the heating element to heat.
10. A vehicle comprising an antenna glass assembly according to any one of claims 1 to 9.
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CN202021770442.1U CN213520301U (en) | 2020-08-21 | 2020-08-21 | Antenna glass assembly and vehicle |
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CN202021770442.1U CN213520301U (en) | 2020-08-21 | 2020-08-21 | Antenna glass assembly and vehicle |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN116095974A (en) * | 2023-01-09 | 2023-05-09 | 深圳市志凌伟业技术股份有限公司 | Preparation method of curved glass transparent antenna |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN116095974A (en) * | 2023-01-09 | 2023-05-09 | 深圳市志凌伟业技术股份有限公司 | Preparation method of curved glass transparent antenna |
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