Fabric-based antenna for wireless power inside a vehicle

Abstract

A fabric-based antenna for radio power within a vehicle is described. In some aspects, the in-vehicle product radio power system comprises a transmitter electronic housing unit electrically connected to the vehicle's wire harness. The system further comprises a first tuned and matched PCB electrically connected to the transmitter electronic housing unit, a transmitter antenna electrically connected to the first tuned and matched PCB, a receiver antenna for capturing magnetic flux from the transmitter antenna, a second tuned and matched PCB electrically connected to the receiver antenna, and a receiver electronic housing unit electrically connected to the second tuned and matched PCB. The receiver electronic housing unit may be electrically connected to a load or vehicle function embedded in an in-vehicle product such as a car seat, center console, or infotainment system.

Description

Technical Field

[0001] This application claims the priority of U.S. Provisional Patent Application No. 63 / 488,820, filed on March 7, 2023, the disclosure of which is incorporated herein by reference in its entirety.

[0002] This document relates to wireless power transmission technology.

Background Art

[0003] Wireless power solutions can be a means to enable new features for next-generation devices. However, conventional wire-wound antennas cannot meet the packaging and performance requirements for certain applications. The proposed fabric-based antennas for wireless power can meet the requirements for thinner and more durable for certain applications.

Summary of the Invention

Means for Solving the Problems

[0004] Techniques for the development and implementation of fabric-based antennas for wireless power applications inside a vehicle are disclosed. In this disclosure, the terms "antenna" and "coil" are used synonymously.

[0005] In one exemplary aspect, a vehicle in-vehicle product radio power system comprises a transmitter electronic housing unit electrically connected to the vehicle's wire harness. The system further comprises a first tuning and matching PCB electrically connected to the transmitter electronic housing unit. The system further comprises a transmitter antenna electrically connected to the first tuning and matching PCB. The system further comprises a receiver antenna for capturing magnetic flux from the transmitter antenna. The system further comprises a second tuning and matching PCB electrically connected to the receiver antenna. The system further comprises a receiver electronic housing unit electrically connected to the second tuning and matching PCB. The receiver electronic housing unit is electrically connected to a load or vehicle function built into the vehicle in-vehicle product.

[0006] In some embodiments, at least one antenna is a fabric-based antenna comprising a first support material layer, a second support material layer, and a base material layer disposed between the first and second support material layers. The base material layer is a fabric-based conductor or conductive foil and is less than a few centimeters thick. One or more feedline wires are electrically connected to the conductive material of the base material layer.

[0007] In some embodiments, the transmitter electronic housing unit comprises a switching amplifier, an impedance matching network, and / or one or more RF filters.

[0008] In some embodiments, the receiver electronic housing unit includes an impedance matching network, an AC / DC converter, and / or a DC / DC converter, and / or a voltage regulation device that adjusts the output for a load or vehicle function.

[0009] In some embodiments, the transmitter antenna and / or receiver antenna include a fabric-based antenna for radio power applications.

[0010] In some embodiments, multiple transmitter fabric-based antennas are configured to operate inside a vehicle to focus magnetic flux to one or more areas of the vehicle rather than the entire interior, and / or for improved performance from multiple transmitter fabric-based antennas compared to a single transmitter fabric-based antenna.

[0011] These and other aspects are disclosed throughout this document. [Brief explanation of the drawing]

[0012] [Figure 1] Figure 1 illustrates an exemplary fabric-based antenna wireless power system flowchart according to several embodiments of the disclosed technology.

[0013] [Figure 2] Figure 2 illustrates an exemplary wireless power vehicle in-vehicle product system according to several embodiments of the disclosed technology.

[0014] [Figure 3] Figures 3A and 3B depict (a) a construction laminate with a separating material and (b) a construction laminate with only a supporting material, respectively, according to several embodiments of the disclosed technology.

[0015] [Figure 4] Figure 4 illustrates an exemplary wireless power vehicle in-vehicle product system according to several embodiments of the disclosed technology.

[0016] [Figure 5] Figures 5A and 5B illustrate exemplary radio-powered vehicle interior systems according to several embodiments of the disclosed technology.

[0017] [Figure 6] Figures 6A and 6B depict exemplary radio-powered vehicle in-vehicle systems with fabric-based transmitters of different sizes according to several embodiments of the disclosed technology.

[0018] [Figure 7] Figures 7A and 7B depict, respectively, (a) an exemplary wireless power vehicle interior system with automotive seats at different positions and (b) an exemplary wireless power vehicle interior system with a center console, according to some embodiments of the disclosed technology.

[0019] [Figure 8] Figures 8A and 8B depict, respectively, (a) an exemplary wireless power vehicle interior system with multiple transmit antennas and (b) an exemplary wireless power vehicle interior system with transmit antennas driven by the same electronic device, according to some embodiments of the disclosed technology. **DETAILED DESCRIPTION**

[0020] Detailed Description Wireless power can be a means to enable new features for next-generation vehicle interiors, such as replaceable seat layouts, automotive seat rotation, and increased vehicle seat movement and actuation.

[0021] However, current transmitter antennas can today often struggle to meet performance requirements while also meeting thin-packaging requirements (e.g., less than a few centimeters). Some examples are within the vehicle floor and wall panels. The proposed technology is the development and implementation of novel antennas for wireless power vehicle interior applications.

[0022] FIG. 1 depicts an exemplary fabric-based antenna wireless power system flowchart. As shown in the exemplary flowchart of the wireless power system in FIG. 1, the transmitter electronics housing is electrically connected to the vehicle's wire harness, specifically, to the voltage breakout PCB. In this voltage breakout PCB, there are a step-down converter for amplifier digital logic and a boost converter for the amplifier input. The step-down converter for amplifier digital logic can be a buck converter, a flyback converter, or a sepic converter. Further, the voltage breakout board can have reverse polarity protection, an EMI filter, fuse protection, and other forms of EMI, short circuit, and reverse polarity protection circuitry.

[0023] The power amplifier can be a switching amplifier such as a series-resonant, parallel-resonant, or off-resonant Class D or Class E amplifier. In addition, the power amplifier can be single-ended or differential and may include an isolated switching amplifier topology. Furthermore, it may have a broadband impedance matching network or a parallel-tuned amplifier matching network topology. In a parallel-tuned resonant power amplifier, the load network and matching network are tuned so that the transmitter antenna is in parallel with the resonant capacitor, rather than in series, and the amplifier's load network is also tuned to the same resonant frequency. That is, the entire power amplifier network operates in a fully resonant state rather than using an off-resonant load network. In this way, the voltage across the transmitter is maximized and harmonics are reduced. Maximizing the voltage results in a higher oscillation current flowing through the transmitter antenna, or a stronger magnetic field that will couple with the receiver, especially when the transmitter and receiver are physically far apart, particularly within a loosely coupled resonant induction system. In some embodiments, transformers may also be included to further increase the oscillation voltage across the transmitter antenna, thereby further improving the magnetic flux linkage and power delivery between the transmitter and receiver. In addition, parallel resonant power amplifiers are better protected from movement or change in the receiver's position or capacitive and inductive reflections from the surrounding environment, which can cause substantial changes in the efficiency of the power amplifiers. Further details can be found in the jointly owned PCT patent application publication WO2021 / 178821, entitled "AUTOMOTIVE CAR SEAT WIRELESS CHARGING SYSTEM" (incorporated herein by reference). In addition, further details can be found in the jointly owned PCT patent application publication WO2020 / 069198, entitled "PARALLEL TUNED AMPLIFIERS" (incorporated herein by reference).

[0024] The amplifier can then be electrically coupled to an RF filter, such as a band-pass filter, to attenuate undesirable harmonics and spurious signals. The signal is then coupled to an antenna that is tuned using a resonant capacitor and matched to the system's optimal impedance. These capacitive and potentially inductive components for tuning and matching can be integrated directly into the electronic housing unit or into a separate transmitter antenna matching and tuning PCB that is physically closer to the antenna, thereby reducing the feedline wire length between the antenna and its corresponding resonant capacitor.

[0025] The receiver antenna is excited using a capacitor, thereby substantially resonating and matching the impedance of the receiver electronics to capture the magnetic flux from the transmitter antenna. This signal is then electrically connected to AC / DC converters and / or DC / DC converters and / or voltage regulators, at various voltage levels depending on the application, but typically ranging from 12V to 16V for in-vehicle applications.

[0026] Figure 2 illustrates an exemplary radio-powered vehicle in-vehicle product system. For example, Figure 2 illustrates an exemplary vehicle seat radio-powered system incorporating the flowchart of Figure 1. In this exemplary embodiment, the transmitter electronic housing unit is electrically connected to the vehicle's wire harness and consists of a voltage breakout PCB, a switching amplifier, an impedance matching network, and an RF filter. Furthermore, some or all of the described features within the transmitter electronic housing can be incorporated into a single integrated or separate PCB within the transmitter electronic housing module. In addition, the transmitter electronic housing module can be divided into one or more electronic housing modules for easier assembly, where applicable.

[0027] The output of the transmitter electronics is electrically connected to a tuning and matching PCB, which substantially excites the transmitter at optimal resonant frequencies (e.g., 85 kHz, 100 kHz, 6.78 MHz, 13.56 MHz, and 27.1 MHz).

[0028] The receiver antenna is then substantially excited and matched by a corresponding tuning and matching PCB, which is electrically connected to the receiver electronic housing. The receiver electronics also include an AC / DC converter and / or a DC / DC converter, as well as a voltage regulating device to adjust the output for vehicle functions. Similar to the transmitter electronic housing unit, the receiver electronic housing can be incorporated into a single integrated or separate PCB within the receiver electronic housing module. In addition, the receiver electronic housing module can be divided into one or several electronic housing modules for easier assembly, where applicable. Furthermore, tuning and matching components can also be integrated into the receiver electronic housing.

[0029] The receiver electronic housing is electrically connected to a load or vehicle function, which is integrated into a car seat, center console, or other in-vehicle device. In the embodiment shown in Figure 2, a motor and electronic control unit (ECU) function are integrated into the seat as the load for the wireless power system. Other features may include an SVS fan, heater, multiple actuators, and a speaker.

[0030] The transmitter and receiver antennas may be fabric-based antennas for radio power applications to satisfy packaging and performance requirements. In some embodiments, these novel antennas have a base material, a first support material, and a second support material. In other embodiments, there is a support material, a separator material, a base material, a second separator material, and a second support material.

[0031] Figures 3A and 3B depict (a) a construction laminate with a separation material and (b) a construction laminate with only a support material, respectively. As shown in Figure 3A, separation material A and separation material B are selected for low dielectric constant and loss factor for optimal performance. Some exemplary support materials are felt, denim, peron, and polyester. In some embodiments, the low loss factor may include a value of less than 0.02 or another preferred value. In some embodiments, the low dielectric constant may include a value of less than 4 or another preferred value. The loss factor and / or dielectric constant may vary based on the test frequency and material type. In some embodiments, the support material may be a separation material if the material satisfies the durability, environmental, mechanical, and / or other system requirements of the application illustrated in the laminate in Figure 3B. If the separation material cannot satisfy these requirements, a support material such as plastic may be selected. Separation material A and separation material B may be identical or distinctly different. Similarly, support material 1 and support material 2 may also be identical or distinctly different.

[0032] The base material is often a fabric-based conductor or conductive foil with low resistance. For radio power transfer, developing a high intrinsic quality ("Q") antenna can be a critical design criterion for improving system efficiency, charging distance, and the power delivered to the load. Intrinsic quality is a measure of inductive reactance relative to resistance. In other words, intrinsic quality is a measure of stored energy relative to energy dissipated for the antenna. Intrinsic quality is typically a dimensionless parameter used as an indicator for antenna efficiency. The higher the "Q" of transmitter and receiver antennas, the better they will couple with each other. Therefore, the higher the conductivity, the better the base solution for radio power transfer applications. Some exemplary materials are copper foil, tin-plated copper foil, aluminum foil, aluminum polyester foil, copper polyester taffeta fabric, ripstop silver fabric, and Ni / Cu / Ag-plated polyamide fabric. Furthermore, the base material can be less than a few millimeters thick.

[0033] The base material design can be manufactured by press cutting, automatic blade cutting, laser cutting, and water jet cutting. To develop a robust structure, the base material can be sandwiched between two layers of separation material. In this example, the separation material is in direct contact with the base material on both sides. The layers can be joined to the stabilizing member by using one or a combination of the following methods: sewing, bonding, and fusing.

[0034] Furthermore, a tuning and matching PCB, embedded within isolation material A or B, may be present and electrically connected to the antenna's feedline. Capacitors may be installed on the tuning and matching PCB to substantially excite the antenna at the optimal resonant frequencies for the application (e.g., 85 kHz, 100 kHz, 6.78 MHz, 13.56 MHz, and 27.1 MHz). These can be in series, parallel, series / parallel, and parallel / series configurations. Additionally, an impedance matching network may be implemented to optimize impedance matching between the antenna and an amplifier driving it in a transmitter or converter electrically connected within the receiver. The impedance matching network may consist of passive components such as inductors, capacitors, and resistors. Some exemplary impedance values ​​may be 5, 10, 15, and 50 ohms.

[0035] Furthermore, the coordinated and harmonized PCB may also have mechanical restraints or support structures to better protect and ensure the structural integrity of the PCB. The PCB support structure may be made of durable plastics such as ABS, polycarbonate, PLA, and polypropylene, or metal. This purpose can be further emphasized when it is possible for a person or entity to physically interact with the device. For example, if the antenna is embedded in the seat or floor of a vehicle, it may be possible for an occupant to physically step on the PCB. Another embodiment may be an automated vehicle, such as an auto-guided vehicle, that accidentally comes into contact with an antenna on the wall or floor of a factory or order fulfillment center.

[0036] Figure 4 illustrates an exemplary wireless power vehicle interior product system. In particular, Figure 4 illustrates a laminate modified for vehicle interior applications. In this exemplary embodiment, the vehicle carpet rests on support material 1. However, as with the laminate described above, a separator material may also be placed between the base material and the support material, having a low dielectric constant and loss coefficient for optimal performance.

[0037] Within the vehicle floor, there is typically an insulating layer or foam-like layer that separates the carpet from the metal body. For the placement of a fabric-based transmitter antenna, the insulating layer may be present instead of the separating material, or the separating material may be placed between the support material 2 and the insulating layer. This is an important design decision because the vehicle's metal body will degrade or reduce the intrinsic Q of the transmitter antenna, and therefore, an optimal distance between the transmitter antenna and the vehicle's metal body should be maintained. For example, the base material layer may typically be located a few millimeters or more above the vehicle's metal floor.

[0038] Furthermore, due to the proximity of the vehicle's metal floor and the antenna, a ferromagnetic material may also be placed between the support material 2 and the insulating layer, or between the insulating layer and the sheet metal. This material can be a high-permeability, low-loss material such as a ferrite sheet. In some embodiments, the high permeability may include values ​​such as 50, 100, 200, or another preferred value (μ') at the system's operating frequency, while the low loss (μ'') within the material may include values ​​such as 1, 2, 5, 10, 20, or another preferred value. For example, the selected material may represent the highest possible permeability and lowest loss from the available options.

[0039] Figures 5A and 5B depict an exemplary radio-powered in-vehicle system. A single transmitter fabric-based antenna can power one or more receivers within the vehicle. Figures 5A and 5B illustrate multiple car seats throughout the interior of the vehicle powered by the same transmitter fabric-based antenna. While Figures 5A and 5B only refer to car seats, it is important to note that radio-powered in-vehicle systems can also power other types of vehicle products, such as the central console and infotainment system.

[0040] Wireless powered vehicle interior systems enable real-time reconfigurable interior layouts, a particularly important aspect with respect to autonomous vehicles, as receivers can be significantly coupled with transmitter fabric-based antennas as the orientation and position of vehicle products change and move for next-generation vehicles. For example, multiple car seats can be reliably powered while they move and rotate simultaneously, which can add further convenience to passengers. Furthermore, replaceable vehicle interiors can also add benefits to delivery businesses, especially autonomous ones, as they can rotate and stow seats forward to drop off passengers for one route and then load and store packages for another route.

[0041] Replacing the vehicle interior with conventional wire harness connections would be extremely difficult, as the seats would require expensive and unreliable clock springs and mechanical connections for complex movement and rotation. These complex harnesses would, in turn, result in high warranty costs for the original equipment manufacturers (OEMs) of these vehicles and their Tier 1 suppliers.

[0042] With regard to current vehicles, this wireless power system also enables more reliable automotive seating that requires long rail seating, such as track lengths of 1 meter or more. This is because long rail seating (for example, for vans) today requires complex wire harnesses and clock springs to mechanically wind and unwind the wire harnesses, which become unreliable over time and tend to break and tear.

[0043] Furthermore, the number of receivers, such as seats, and the location of those receiver devices within the vehicle can be modified according to the desired internal application. This, in turn, means that the length and width of the transmitter antenna can be increased or decreased depending on the coverage area required for the application. For example, in some embodiments, it may be desirable to power only the seats in the central row with long rail distance travel. Figures 6A and 6B depict exemplary radio-powered vehicle internal systems with fabric-based transmitters of different sizes. Figures 6A and 6B illustrate how, in this example, the length and width of the transmitter antenna can be varied based on the desired application.

[0044] In other embodiments, it may simply be desirable to make the entire interior cabin reconfigurable, allowing the seats, central console, infotainment system, and other vehicle interior products to be completely replaceable and easily movable to different areas. Figures 7A and 7B depict (a) an exemplary radio-powered vehicle interior system with car seats in different positions, and (b) an exemplary radio-powered vehicle interior system with a central console, respectively. Figures 7A and 7B illustrate that orientation, position, and vehicle devices can be modified by implementing this radio-powered vehicle interior system.

[0045] The receiver antenna may also be a fabric-based antenna, but may also be of several other antenna types. For example, the receiver antenna may be a planar antenna, an electrodeposited antenna formed directly on a vehicle part (e.g., on the surfaces of Class A and Class B vehicles), or a three-dimensional antenna. A three-dimensional antenna may be particularly useful for improving the coupling between the receiver and the transmitter. Further details can be found in the jointly owned PCT patent application publication WO2020 / 069198, entitled "PARALLEL TUNED AMPLIFIERS" (incorporated herein by reference).

[0046] The three-dimensional antenna is a surface spiral coil consisting of a continuous conductor without any breaks or radio frequency discontinuities, and the continuous conductor is wound around a dielectric material at a certain angle to reduce proximity effects at the operating frequency of the wireless charging system and to maintain a high intrinsic quality factor (Q) of the surface spiral coil at the operating frequency. Further details can be found in the jointly owned PCT patent application publication WO2020 / 069198, entitled "PARALLEL TUNED AMPLIFIERS" (incorporated herein by reference).

[0047] For some in-vehicle applications, planar or electroplated antennas may be the optimal alternative for minimizing cost, while three-dimensional antennas may be the optimal choice for maximizing the system's intrinsic Q factor and overall performance. Some exemplary intrinsic quality factors can exceed 100 for vehicle embodiments, and sometimes even exceed 500. Furthermore, it may be desirable to use both fabric-based antennas and other antenna types such as planar, electroplated, and three-dimensional antennas simultaneously. For example, it may be desirable to use a fabric-based antenna topology to satisfy the requirement of low-profile packaging in the floor, while using planar, surface spiral, or electroplated antennas for receivers in car seats, center consoles, infotainment systems, or other in-vehicle products. This may be due to easier manufacturing in terms of these product types, performance, cost, packaging, or other considerations.

[0048] Figures 8A and 8B depict (a) an exemplary radiopower vehicle interior system with multiple transmitting antennas and (b) an exemplary radiopower vehicle interior system with a transmitting antenna driven by the same electronic equipment, respectively. Figures 8A and 8B illustrate that multiple transmitter fabric-based antennas may exist operating within the same vehicle interior. This may be to focus the magnetic flux to a specific area of ​​the vehicle rather than throughout the entire interior. Alternatively, this may also be to improve the performance of the transmitter antennas. The longer the antenna, the larger the coverage area of ​​the vehicle receiver product. However, increased length may result in higher resistance and a lower intrinsic Q coefficient. This, in turn, may result in smaller coupling, lower system efficiency, and power received for the vehicle receiver product. Therefore, the length, width, and number of transmitter fabric-based antennas may vary depending on the size of the vehicle interior, system efficiency, power, and cost requirements.

[0049] Figure 8B shows that it is also possible to integrate multiple transmitter fabric-based antennas into a single transmitter electronic housing unit. This can reduce the overall system cost, provided that the transmitter electronics can meet the power requirements of all loads or vehicle products installed inside.

[0050] The following list of solutions may preferably be implemented by several embodiments.

[0051] 1. A vehicle internal product radio power system comprising a transmitter electronic housing unit electrically connected to the vehicle's wire harness, comprising a switching amplifier, an impedance matching network, and / or one or more RF filters; a first tuning and matching PCB electrically connected to the transmitter electronic housing unit; a transmitter antenna electrically connected to the first tuning and matching PCB; a receiver antenna for capturing magnetic flux from the transmitter antenna; a second tuning and matching PCB electrically connected to the receiver antenna; and a receiver electronic housing unit electrically connected to the second tuning and matching PCB, which is electrically connected to a load or vehicle function built into the vehicle internal product. A vehicle in-vehicle product wireless power system comprising a receiver electronic housing unit comprising an impedance matching network, an AC / DC converter, and / or a DC / DC converter, and / or a voltage regulating device for regulating output for a load or vehicle function, wherein at least one antenna is a fabric-based antenna, the fabric-based antenna comprising a first support material layer, a second support material layer, and a base material layer disposed between the first support material layer and the second support material layer, the base material layer being a fabric-based conductor or conductive foil, less than a few centimeters in thickness, and one or more feedline wires electrically connected to the conductive material of the base material layer.

[0052] 2. Vehicle interior products powered by the vehicle interior product wireless power system are one or more car seats, one or more center consoles, or one or more infotainment systems, as described in Solution 1 of the vehicle interior product wireless power system.

[0053] 3. The vehicle internal product radio power system described in Solution 1-2, wherein the tuning and matching components for the transmitter and / or receiver antenna are built into the antenna itself or directly into the transmitter or receiver electronic housing unit.

[0054] 4. The transmitter electronics include at least one of the following: a boost converter for increasing the input voltage from the supply line to the amplifier, a step-down converter or regulator for the logic network, reverse polarity protection, an EMI filter, fuse protection, other forms of EMI, short circuit, and / or reverse polarity protection network, as described in Solution 1-3 of the vehicle internal product radio power system.

[0055] 5. The vehicle in-vehicle product radio power system described in Solution 1-4, in which the components of the transmitter or receiver electronic housing unit are incorporated into a single integrated PCB.

[0056] 6. The vehicle in-vehicle product radio power system described in Solution 1-5, wherein the components of the transmitter or receiver electronic housing unit are incorporated into a separate PCB within the transmitter or receiver electronic housing unit.

[0057] 7. The transmitter or receiver electronic housing unit is divided into one or several electronic housing modules for assembly, as described in Solution 1-6 for the vehicle internal product wireless power system.

[0058] 8. One or more transmitter and receiver antennas substantially resonate with the capacitor at similar frequencies in the vehicle in-product radio power system described in Solutions 1-7.

[0059] 9. A vehicle in-product wireless power system as described in Solution 8, wherein the optimal resonant frequency includes 85kHz, 100kHz, 6.78MHz, 13.56MHz, or 27.1MHz.

[0060] 10. A vehicle interior product wireless power system according to Solutions 1-9, comprising a fabric-based conductor or conductive foil, the base material layer including copper foil, tin-plated copper foil, aluminum foil, aluminum polyester foil, copper polyester taffeta fabric, ripstop silver fabric, and / or Ni / Cu / Ag-plated polyamide fabric.

[0061] 11. The vehicle interior product wireless power system according to Solution 1-10, wherein the first support material layer and / or second support material layer comprises a low loss coefficient and dielectric constant plastic including ABS, polycarbonate, PLA, and / or polypropylene, or a woven base material including felt, denim, peron, and / or polyester.

[0062] 12. A vehicle in-vehicle product radio power system as described in Solution 1-11, wherein a PCB with tuning and matching capacitors is embedded in one of the support materials and electrically connected to the feed line of the fabric-based antenna to substantially excite the fabric-based antenna to resonate at the optimal resonant frequency for the target application.

[0063] 13. The load or vehicle function built into the vehicle interior product is a vehicle interior product wireless power system as described in Solution 1-12, comprising a motor function, an electronic control unit (ECU) function, an SVS fan, a heater, multiple actuators, a sound system, an infotainment system, a passenger device, and / or a speaker.

[0064] 14. The vehicle in-vehicle product radio power system according to Solution 1-13, wherein the fabric-based antenna comprises a first isolation material layer disposed between a first support material layer and a base material layer and / or a second isolation material layer disposed between the base material layer and a second support material layer.

[0065] 15. The fabric-based antenna is integrated into the vehicle floor, as described in Solution 1-14 for the vehicle's internal product wireless power system.

[0066] 16. A single transmitter fabric-based antenna powers one or more receiver antennas inside the vehicle, as described in Solution 1-15 of the vehicle-in-vehicle product radio power system.

[0067] 17. The length and / or width of the transmitter antenna are adapted based on the target application, for the vehicle in-product radio power system described in Solutions 1-16.

[0068] 18. The vehicle in-vehicle product radio power system according to claim 1-17, wherein multiple transmitter fabric-based antennas are configured to operate inside a vehicle to focus magnetic flux onto one or more areas of the vehicle rather than the entire interior of the vehicle, and / or for improved performance from multiple transmitter fabric-based antennas compared to a single transmitter fabric-based antenna.

[0069] 19. The transmitter antenna and / or receiver antenna comprises a planar antenna, an electrodeposited antenna formed directly on a vehicle part, and / or a three-dimensional antenna, as described in Solution 1-18 of the vehicle in-vehicle product radio power system.

[0070] The figures and the above description provide a brief general description of preferred environments in which the present invention may be implemented. The above detailed description of embodiments of the present invention is not intended to be exhaustive or to limit the present invention to the precise forms disclosed above. Specific embodiments of the present invention are described above for illustrative purposes, but various equivalent modifications are possible within the scope of the invention, as those skilled in the art will recognize. For example, where a process or block is presented in a given order, alternative implementations may employ a system that performs routines having steps / blocks or has blocks in a different order, and some processes or blocks may be deleted, moved, added, subdivided, combined, or modified to provide alternative or secondary combinations. Each of these processes or blocks may be implemented in a variety of different ways. Also, where a process or block is sometimes shown as being performed sequentially, these processes or blocks may instead be performed or implemented in parallel or at different times. Furthermore, any specific figures described herein are merely examples, and alternative implementations may employ different values ​​or ranges.

[0071] These and other modifications may be made to the invention in light of the above detailed description. The above description describes certain embodiments of the invention and the assumed best mode, but regardless of how much detail is expressed above in text, the invention can be practiced in many ways. The details of the system may vary considerably in its specific implementation, but are still encompassed by the invention disclosed herein. As described above, any terminology used when describing certain features or aspects of the invention should not be taken as implying that the terminology is redefined to limit the invention herein to any specific characteristic, feature, or aspect of the invention to which it relates. In general, the terms used in the following claims should not be interpreted as limiting the invention to the specific embodiments disclosed herein unless such terms are explicitly defined in the above detailed description section. Thus, the actual scope of the invention includes not only the disclosed embodiments but also all equivalent ways of practicing or implementing the invention under the claims.

Claims

1. A vehicle in-vehicle product wireless power system, A transmitter electronic housing unit electrically connected to the vehicle's wire harness, comprising a switching amplifier, an impedance matching network, and / or one or more RF filters, A first adjustment and matching PCB electrically connected to the transmitter electronic housing unit, A transmitter antenna electrically connected to the first adjustment and matching PCB, A receiver antenna for capturing magnetic flux from the aforementioned transmitter antenna, A second adjustment and matching PCB electrically connected to the receiver antenna, A receiver electronic housing unit electrically connected to the second adjustment and matching PCB, electrically connected to a load or vehicle function built into a vehicle internal product, wherein the receiver electronic housing unit comprises an impedance matching network, an AC / DC converter and / or a DC / DC converter, and / or a voltage regulating device for adjusting the output for the load or the vehicle function, and The system includes, and at least one antenna comprises a fabric-based antenna, the fabric-based antenna is The first support material layer, A second support material layer, A base material layer disposed between the first support material layer and the second support material layer Equipped with, The aforementioned base material layer is a fabric-based conductor or conductive foil, and has a thickness of less than a few centimeters. One or more feedline wires are electrically connected to the conductive material of the base material layer. Vehicle interior product wireless power system.

2. The vehicle interior product wireless power system according to claim 1, wherein the vehicle interior product powered by the vehicle interior product wireless power system is one or more car seats, one or more central consoles, or one or more infotainment systems.

3. The vehicle in-vehicle product radio power system according to claim 1-2, wherein the adjustment and matching components for the transmitter and / or receiver antenna are built into the antenna itself or directly built into the transmitter or receiver electronic housing unit.

4. The vehicle in-vehicle product radio power system according to claim 1-3, wherein the transmitter electronic equipment includes at least one of a boost converter for increasing the input voltage from the supply line to the amplifier, a step-down converter or regulator for a logic network, reverse polarity protection, an EMI filter, fuse protection, other forms of EMI, short circuit, and / or reverse polarity protection network.

5. The vehicle in-vehicle product wireless power system according to claim 1-4, wherein the components of the transmitter or receiver electronic housing unit are incorporated into a single integrated PCB.

6. The vehicle in-vehicle product wireless power system according to claim 1-5, wherein the components of the transmitter or receiver electronic housing unit are incorporated into a separate PCB within the transmitter or receiver electronic housing unit.

7. The vehicle in-vehicle product wireless power system according to claim 1-6, wherein the transmitter or receiver electronic housing unit is divided into one or more electronic housing modules for assembly.

8. The vehicle in-vehicle product radio power system according to claims 1-7, wherein one or more transmitter and receiver antennas substantially resonate with a capacitor at similar frequencies.

9. The vehicle in-product wireless power system according to claim 8, wherein the optimal resonant frequency includes 85 kHz, 100 kHz, 6.78 MHz, 13.56 MHz, or 27.1 MHz.

10. The vehicle in-vehicle product wireless power system according to claims 1-9, wherein the base material layer comprises a fabric-based conductor or conductive foil including copper foil, tin-plated copper foil, aluminum foil, aluminum polyester foil, copper polyester taffeta fabric, ripstop silver fabric, and / or Ni / Cu / Ag-plated polyamide fabric.

11. The vehicle in-vehicle product wireless power system according to claim 1-10, wherein the first support material layer and / or the second support material layer comprises a low-loss coefficient and dielectric constant plastic including ABS, polycarbonate, PLA, and / or polypropylene, or a woven base material including felt, denim, peron, and / or polyester.

12. The vehicle in-vehicle product radio power system according to claim 1-11, wherein a PCB with tuning and matching capacitors is embedded in one of the support materials and is electrically connected to the feed line of the fabric-based antenna to substantially excite the fabric-based antenna to resonate at the optimal resonant frequency for the target application.

13. The vehicle in-vehicle product wireless power system according to claim 1-12, wherein the load or vehicle function incorporated within the vehicle in-vehicle product comprises a motor function, an electronic control unit (ECU) function, an SVS fan, a heater, a plurality of actuators, a sound system, an infotainment system, a passenger device, and / or a speaker.

14. The vehicle in-vehicle product wireless power system according to claim 1-13, wherein the fabric-based antenna comprises a first separation material layer disposed between the first support material layer and the base material layer and / or a second separation material layer disposed between the base material layer and the second support material layer.

15. The fabric-based antenna is integrated into the floor of the vehicle, as described in claim 1-14 of the vehicle in-vehicle product wireless power system.

16. A vehicle-in-vehicle product radio power system according to claim 1-15, wherein a single transmitter fabric-based antenna supplies power to one or more receiver antennas inside the vehicle.

17. The vehicle in-vehicle product wireless power system according to claim 1-16, wherein the length and / or width of the transmitter antenna is adapted based on the target application.

18. The in-vehicle product radio power system according to claim 1-17, wherein multiple transmitter fabric-based antennas are configured to operate inside the vehicle to focus magnetic flux onto one or more areas of the vehicle rather than the entire interior of the vehicle, and / or for improved performance from the multiple transmitter fabric-based antennas compared to a single transmitter fabric-based antenna.

19. The vehicle in-vehicle product wireless power system according to claim 1-18, wherein the transmitter antenna and / or receiver antenna comprises a planar antenna, an electrodeposited antenna formed directly on a vehicle portion, and / or a three-dimensional antenna.

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