Modularized wireless power supply type light-emitting vehicle logo

Abstract

The invention relates to a modular wireless power supply type light-emitting vehicle logo. The modular wireless power supply type light-emitting vehicle logo comprises a glass substrate arranged on a vehicle, a wireless transmitting end located on the inner side of the glass substrate, a wireless receiving end located on the outer side of the glass substrate and a modular vehicle logo body connected with the wireless receiving end. The wireless power supply module composed of the wireless transmitting end and the wireless receiving end adopts a Qi2 MPP protocol wireless charging technology, the wireless power supply module achieves power supply through magnetic ring positioning, the modular vehicle logo and the wireless receiving end are integrally formed, and the modular vehicle logo comprises a vehicle logo identifier and a light source module installed on the vehicle logo identifier; the vehicle logo has the advantages that rapid installation, convenient maintenance and wireless power supply of the vehicle logo are realized.

Description

Technical Field

[0001] This invention relates to the field of automotive luminous emblem technology, and in particular to a modular wirelessly powered luminous emblem. Background Technology

[0002] Illuminated car logos are high-end automotive accessories that integrate brand logo display, nighttime visual recognition, and in-vehicle scene adaptation. They achieve dynamic or static light effects through built-in light-emitting elements (LED / OLED), which not only enhances the brand recognition of the vehicle but also becomes the finishing touch to the vehicle's appearance. They are widely used in the core visual areas such as the grille and rear of mid-to-high-end fuel vehicles and new energy vehicles.

[0003] Traditional illuminated car emblems generally use wired power supply, which has inherent problems such as large installation space requirements, inconvenient fixing, limited waterproof performance, easy aging of wiring harnesses, and high maintenance and installation costs, which have long affected the product user experience and life cycle.

[0004] With the increasing maturity of wireless charging technology, in-vehicle wireless power supply solutions can meet the power needs of low-power electronic devices and are fully compatible with automotive-grade application requirements. However, most existing solutions adopt a fixed transmitting coil design, which not only makes it difficult to optimize the thickness of the vehicle logo (resulting in a thicker size), but also prevents modular and rapid replacement, limiting the flexibility and iteration efficiency of the product. Summary of the Invention

[0005] In view of the above problems, the purpose of this invention is to provide a modular wirelessly powered luminous car emblem for quick installation, convenient maintenance and wireless power supply, so as to overcome the shortcomings of the prior art.

[0006] This invention provides a modular wirelessly powered luminous car emblem, comprising: a glass substrate mounted on a car, a wireless transmitter located inside the glass substrate, a wireless receiver located outside the glass substrate, and a modular car emblem connected to the wireless receiver; the wireless power supply module composed of the wireless transmitter and the wireless receiver adopts Qi2 MPP protocol wireless charging technology, and the wireless power supply module achieves power supply through magnetic ring positioning; the modular car emblem and the wireless receiver are integrally formed, and the modular car emblem includes: a car emblem logo and a light source module installed on the car emblem logo.

[0007] As a preferred embodiment of the present invention, the manufacturing steps of the light source module are as follows:

[0008] Step S1: Fabrication of Mini LED flexible light strip. The blue light chip is transferred to a flexible substrate for die bonding. An optical sealing layer made of transparent epoxy resin is used to seal and fix the blue light chip on the flexible substrate. The flexible substrate is a flexible circuit board. The optical sealing layer is used to protect the blue light chip. A diffusing agent is added to the transparent epoxy resin material of the optical sealing layer. The diffusing agent is used to make the light emitted by the blue light chip more uniform.

[0009] Step S2: Fabrication of the PC film. Dots are printed on the lower surface of a PC film with a thickness of 0.5mm or more, or dots are formed by carbon dioxide laser. This allows the light from the Mini LED flexible light strip to enter from the side, be conducted within the PC film, and have total internal reflection destroyed by the dots to form a uniform surface light source. A layer of adhesive film containing yellow phosphor is attached to the PC film. The blue LED chip excites the yellow phosphor to form white light, thereby improving the light conversion efficiency and reducing energy loss.

[0010] Step S3: Install the Mini LED flexible light strip on the side of the PC film and place a high reflectivity reflector under the PC film; thereby realizing the use of the Mini LED flexible light strip to emit light and enter the PC film with dots from the side. The dots destroy the light and form total internal reflection in the PC film, so that the light enters the backlight cavity through the upper surface of the PC film to form a surface light source.

[0011] As a preferred embodiment of the present invention, the wireless transmitter includes: a PC+ABS housing, a transmitter ferrite located inside the PC+ABS housing, a wireless transmission coupling coil, a PCB power supply board, a power supply chip assembly, and a wiring harness. The electromagnetic induction transmitter, composed of the transmitter ferrite and the wireless transmission coupling coil wound on the transmitter ferrite, is located at the upper end of the PC+ABS housing. The wireless transmission control assembly, composed of the PCB power supply board and the power supply chip assembly, is located at the lower end of the PC+ABS housing. The electromagnetic induction transmitter and the wireless transmission control assembly are sealed in the PC+ABS housing with adhesive. The PCB power supply board is electrically connected to the wireless transmission coil via the wiring harness. The power supply chip assembly is electrically connected to the vehicle body power supply via the wiring harness. The PC+ABS housing is fixed to the inner side of the glass substrate with 3M adhesive.

[0012] The wireless receiver and the light source module are integrally molded within a PUR injection-molded mask. The wireless receiver includes a wireless receiver chip assembly and an electromagnetic induction receiver consisting of a receiver ferrite and a wireless receiver coupling coil wound around the receiver ferrite. The electromagnetic induction receiver and the wireless receiver chip assembly are soldered to the back of the light source circuit board of the light source module by high-temperature soldering, so that the electronic components of the wireless receiver and the light source module share the same circuit board. A PVD film surrounding the wireless receiver and the light source module is provided inside the PUR injection-molded mask. The wireless receiver and the light source module are sealed inside the PUR injection-molded mask by potting glue. The PUR injection-molded mask is fixed to the outside of the glass substrate by 3M adhesive.

[0013] As a preferred embodiment of the present invention, the glass substrate is a double-layer laminated glass or a single-layer glass.

[0014] As a preferred embodiment of the present invention, it includes: a glass substrate disposed on an automobile, a wireless transmitter located inside the glass substrate, a wireless receiver located outside the glass substrate, and a light source module connected to the wireless receiver.

[0015] The wireless transmitter includes: a PC+ABS housing, a transmitter ferrite located inside the PC+ABS housing, a wireless transmission coupling coil, a PCB power supply board, a power supply chip assembly, and a wiring harness. The electromagnetic induction transmitter, consisting of the transmitter ferrite and the wireless transmission coupling coil wound on the transmitter ferrite, is located at the upper end of the PC+ABS housing. The wireless transmission control assembly, consisting of the PCB power supply board and the power supply chip assembly, is located at the lower end of the PC+ABS housing. The electromagnetic induction transmitter and the wireless transmission control assembly are sealed in the PC+ABS housing with adhesive. The PCB power supply board is electrically connected to the wireless transmission coil via the wiring harness. The power supply chip assembly is electrically connected to the vehicle body power supply via the wiring harness. The PC+ABS housing is fixed to the inner side of the glass substrate with 3M adhesive.

[0016] The wireless receiver and the light source module are integrally molded within a PUR injection-molded mask. The wireless receiver includes a wireless receiver chip assembly and an electromagnetic induction receiver consisting of a receiver ferrite and a wireless receiver coupling coil wound around the receiver ferrite. The electromagnetic induction receiver and the wireless receiver chip assembly are soldered to the back of the light source circuit board of the light source module by high-temperature soldering, so that the electronic components of the wireless receiver and the light source module share the same circuit board. A PVD film surrounding the wireless receiver and the light source module is provided inside the PUR injection-molded mask. The wireless receiver and the light source module are sealed inside the PUR injection-molded mask by potting glue. The PUR injection-molded mask is fixed to the outside of the glass substrate by 3M adhesive.

[0017] As a preferred embodiment of the present invention, the glass substrate is a double-layer laminated glass or a single-layer glass.

[0018] Another objective of this invention is to provide a control method for a modular wirelessly powered luminous car emblem. When the vehicle is started, the wireless transmitter receives power synchronously with the vehicle's position lights and sends signals to the power supply chip assembly. The power supply chip assembly activates a high-frequency inverter circuit, generating a high-frequency alternating magnetic field at the position of the wireless transmitting coupling coil. The wireless receiving coupling coil at the wireless receiver on the outside of the glass substrate senses the change in the magnetic field and generates current through electromagnetic induction. After rectification, the current powers the lighting module, which provides a light source for the car emblem. The power supply chip monitors the power supply status and temperature in real time and adjusts the output power through a PWM adjustment module integrated on the PCB power supply board.

[0019] The beneficial effects of this invention are as follows:

[0020] 1. This invention innovates with wireless power supply and luminous car logo structure, with an overall thickness of ≤10mm, adapting to compact car bodies, making the product design more flexible and giving designers more room for maneuver; it reduces installation environment requirements, eliminating the need for pre-reserved wiring harnesses, connectors, and other assembly structures, reducing process requirements; the modular design shortens replacement time to within 2 minutes; it has passed automotive-grade AEC-Q100 certification and supports overvoltage / overtemperature / foreign object detection protection.

[0021] 2. This invention innovatively integrates a wireless charging module with automotive glass and uses low-power miniLED lights to illuminate the car logo. While ensuring high efficiency and low heat generation, it achieves stable positioning, effectively improving power supply stability and user experience. It also solves the problems of existing in-vehicle wireless charging devices, such as large space occupation, limited installation location, need for physical drilling of sheet metal for wiring, and impact on overall aesthetics.

[0022] 2. This invention integrates the wireless power supply transmitter, receiver, and glass into a complete product design. The overall thickness of the transmitter is no more than 4.2mm, and the overall thickness of the receiver is no more than 2.0mm, resulting in higher space utilization.

[0023] 3. This invention uses a specially customized conformal receiving coil. The ferrite is made according to the shape of the letter 'a'. The ferrite is hollowed out in the middle of the letter 'a'. The coil size is restricted by the outer edge size of the letter 'a' when the enameled wire is wound. The inner diameter is restricted by the inner edge size of the letter 'a' when the enameled wire is wound. The overall thickness of the receiving coil does not exceed 1mm (i.e., ferrite + enameled wire), which ensures power supply efficiency without affecting the overall light emission effect.

[0024] 4. The light source module of the present invention achieves ultra-thinness of the optical system and improved light emission uniformity through the synergistic design of side-lit MiniLED light strips and dot diffusion structure, while optimizing light energy utilization to reduce power consumption.

[0025] 5. The light source module of this invention uses a PC film instead of a rigid light guide plate, and the overall thickness can be made as thin as about 5mm, realizing the ultra-thin design of automotive interior and exterior lighting structures.

[0026] 6. The PC film of the present invention has a certain degree of flexibility, and the overall structure is better adapted to the curves of the car body.

[0027] 7. The transmitter end of this invention is waterproofed by ultrasonic welding or potting to achieve IP67 waterproof rating. The receiver end coil design is based on the actual space available for the coil placement in the product, and a custom-designed coil that meets the power supply requirements is used as the receiver coil.

[0028] 8. The receiver of the present invention is combined with the light source module. The electronic components of the receiver are soldered onto the FPC on the back of the lamp assembly using flexible circuit board technology, forming an integrated product of the lamp assembly and the receiver.

[0029] 9. This invention achieves a perfect integration of wireless power supply for car logos with automotive glass, maintaining a clean and aesthetically pleasing interior while improving the convenience and safety of power supply. It is particularly suitable for new energy vehicles and high-end intelligent connected vehicles. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the installation of the luminous car emblem and the wireless receiver in this embodiment.

[0031] Figure 2 This is a structural framework diagram of this embodiment.

[0032] Figure 3 This is a schematic diagram showing the installation of the glass substrate, wireless receiver, and light source module in this embodiment.

[0033] Figure 4 This is a schematic diagram of the installation of the wireless transmitter and the glass substrate in this embodiment.

[0034] Figure 5 This is a schematic diagram of the overall structure of the light source module in this embodiment.

[0035] Figure 6 This is a schematic diagram of the PC film in this embodiment using a printed halftone dot pattern.

[0036] Figure 7 This is a schematic diagram of the PC film in this embodiment using laser dotting.

[0037] Figure 8 This is a schematic diagram of the Mini LED flexible light strip in this embodiment.

[0038] Reference numerals in the figures: Glass substrate 1, PC+ABS housing 101, Transmitter ferrite 102, Wireless transmission coupling coil 103, PCB power supply board 104, Power supply chip assembly 105, Wire harness 106, 3M adhesive 107, Encapsulating adhesive 108, Wireless transmitter 2, Wireless receiver 3, Wireless receiver chip assembly 301, Electromagnetic induction receiver 302, Light source module 4, Mini LED flexible light strip 401, Blue light chip 402, Flexible substrate 403, Optical sealing layer 404, PC film 405, Adhesive film 406, Reflective sheet 407, PUR injection molded mask 5, PVD film 6, Car logo 7. Detailed Implementation

[0039] See Figure 1-4As shown, this embodiment provides a modular wirelessly powered luminous car emblem, comprising: a glass substrate 1 mounted on a car, a wireless transmitter 2 located inside the glass substrate 1, a wireless receiver 3 located outside the glass substrate 1, and a modular car emblem 7 connected to the wireless receiver 3; the wireless power supply module composed of the wireless transmitter 2 and the wireless receiver 3 adopts Qi2 MPP protocol wireless charging technology, and the wireless power supply module achieves power supply through magnetic ring positioning; the modular car emblem 7 is integrally formed with the wireless receiver 3, and the modular car emblem 7 includes: a car emblem identifier (not shown) and a light source module 4 installed on the car emblem identifier.The wireless transmitter 2 includes: a PC+ABS housing (a blend of polycarbonate and acrylonitrile-butadiene-styrene copolymer) 101, a transmitter ferrite 102 located inside the PC+ABS housing 101, a wireless transmission coupling coil 103, a PCB power supply board 104, a JW7951C power supply chip assembly 105, and a wiring harness 106. The electromagnetic induction transmitter, consisting of the transmitter ferrite 102 and the wireless transmission coupling coil 103 wound around the transmitter ferrite 102, is located at the upper end inside the PC+ABS housing 101. The wireless transmission control assembly, consisting of the PCB power supply board 104 and the power supply chip assembly 105, is located within the PC+ABS housing. At the lower end of housing 101, the electromagnetic induction transmitter and wireless transmission control component are sealed with adhesive within the PC+ABS housing 101. The PCB power supply board 104 is electrically connected to the wireless transmission coil 103 via wiring harness 106. The power supply chip assembly 105 is electrically connected to the vehicle body power supply via wiring harness 106. The PC+ABS housing 101 is fixed to the inner side of the glass substrate 1 with 3M adhesive 107. The power supply chip assembly 105 integrates a rectifier bridge (silicon rectifier diode / bridge rectifier chip), filter capacitors (electrolytic capacitors, ceramic capacitors), common-mode inductors / differential-mode inductors, a DC-DC chip (Buck / Boost converter), a fuse / resettable fuse, and a power switching transistor. One or more of the following: the power supply chip assembly 105 has a built-in main control chip (MCU / dedicated wireless charging control IC), communication demodulation chip / circuit, crystal oscillator (quartz crystal oscillator), auxiliary resistor / capacitor, current sampling resistor (alloy resistor), voltage sampling resistor (precision resistor divider), temperature sensor (NTC thermistor), freewheeling diode, low dropout linear regulator (LDO), and fast charging protocol chip (such as PD protocol chip, QC protocol chip); the wireless receiver 3 and the light source module 4 are integrally formed in the PUR (polyurethane material) injection molded mask 5, and the wireless receiver 3 includes: a wireless receiver chip assembly 301, and a receiver ferrite and An electromagnetic induction receiver 302 is formed by a wireless receiving coupling coil wound around the ferrite of the receiver end; the electromagnetic induction receiver 302 and the wireless receiving chip 301 are welded to the back of the light source circuit board of the light source module 4 by high temperature welding. The light source circuit board adopts a flexible substrate 403, so that the electronic components of the wireless receiver 3 and the light source module 4 share the circuit board. A PVD (physical vapor deposition) film 6 is provided inside the PUR injection molded mask 5 to surround the wireless receiver 3 and the light source module 4. The wireless receiver and the light source module 4 are sealed inside the PUR injection molded mask 5 by encapsulating glue (potting form) 108. The PUR injection molded mask 5 is fixed to the outside of the glass substrate 1 by 3M adhesive 107.

[0040] Furthermore, in this embodiment, the PCB power supply board uses 0.4mm thick FR-4 (fiberglass cloth + epoxy resin) material as the substrate of the PCB power supply board 104, and the power supply chip assembly 105 uses a power supply chip of model JW7951C manufactured by JOULWATT. The PCB power supply board 104 integrates an electromagnetic filtering module that is electrically connected to the power supply chip assembly 105. The electromagnetic filtering module is connected to the GND network (ground) and is used to suppress the noise of the wireless transmitting coil and the wireless receiving coupling coil.

[0041] Furthermore, in this embodiment, both the wireless transmitting coupling coil 103 and the wireless receiving coupling coil are wound with 0.1-0.15mm fine wire using high-temperature self-adhesive technology and shaped with hot air at 200℃. The total thickness of the three layers of fine wire winding is equal to 0.3mm, of which the winding coil is 0.3mm + ferrite is 0.3mm + double-sided adhesive is 0.15mm, and the total thickness is ≈0.8mm.

[0042] Furthermore, in this embodiment, the glass substrate 1 is a double-layer laminated glass or a single-layer glass.

[0043] Furthermore, in this embodiment, the receiver ferrite is A-shaped, and the wireless receiving coupling coil is wound around the A-shaped receiver ferrite.

[0044] Furthermore, the parameter calculation steps for the wireless transmitting coupling coil 103 and the wireless receiving coupling coil in this embodiment are as follows:

[0045] Step S1: When the LC resonant frequencies of the wireless transmitting coupling coil and the wireless receiving coupling coil are consistent:

[0046]

[0047] If L p ≠L s Then by adjusting C p C s Compensation is performed to ensure that the resonant frequencies are consistent;

[0048] If L p With L s When they are not equal, the following conditions must be met:

[0049] L p ·C p =L s ·C s ;

[0050] In the formula, f0 represents the resonant frequency, which is the operating frequency at which the circuit resonates, and L... p Indicates parallel inductance, referring to the inductance of the inductor element in a parallel resonant circuit, C. p Indicates parallel capacitance, referring to the capacitance of the capacitor element in a parallel resonant circuit, Ls C represents the inductance of a series resonant circuit, specifically the inductance of the inductor element. s This indicates a series capacitor, referring to the capacitance of a capacitor element in a series resonant circuit.

[0051] Step S2: Coupling coefficient:

[0052]

[0053] In the formula, k represents the coupling coefficient, and M represents the mutual inductance;

[0054] Methods to increase the k value include increasing the coil area, decreasing the spacing, increasing the number of turns, and using a ferrite core.

[0055] Step S3: The inductance values ​​of the wireless transmitting coupling coil and the wireless receiving coupling coil do not need to be equal, but they must be matched by LC matching to ensure consistent resonant frequencies. The inductance L should be selected according to the voltage requirements. s ∶L p The ratio (commonly 1:1 or 2:1) ultimately achieves impedance matching and high-efficiency transmission.

[0056] See Figure 5-8 As shown, the manufacturing steps of the light source module in this embodiment are as follows:

[0057] Step S1: Fabrication of the Mini LED flexible light strip 401 of the light source module. The blue light chip (blue light LED chip) 101 is transferred to the flexible substrate 403 for die bonding. The blue light chip 402 is sealed and fixed on the flexible substrate 403 using an optical sealing layer 404 made of transparent epoxy resin. The flexible substrate 403 is a flexible circuit board. The optical sealing layer 404 is used to protect the blue light chip 402. A diffusing agent is added to the transparent epoxy resin material of the optical sealing layer 404. The diffusing agent is used to make the light emitted by the blue light chip 402 more uniform.

[0058] Step S2: Fabrication of PC (polycarbonate) film 2. Dots are printed on the lower surface of a 0.5mm thick PC film 405 or formed by carbon dioxide laser dotting. Light from the Mini LED flexible light strip 401 enters from the side, is conducted within the PC film 405, and total internal reflection is disrupted by the dot pattern to form a uniform surface light source. A layer of adhesive film 406 containing yellow phosphor is attached to the PC film 405. Blue LED chip 402 excites the yellow phosphor to form white light, thereby improving light conversion efficiency and reducing energy loss.

[0059] Step S3: The Mini LED flexible light strip 401 is installed on the side of the PC film 405, and a high-reflectivity reflective sheet 407 is placed below the PC film 405. This allows the Mini LED flexible light strip 401 to emit light that enters the dotted PC film 405 from the side. The dotted surface disrupts the light, causing total internal reflection within the PC film 405, allowing the light to enter the backlight cavity through the upper surface of the PC film 405, forming a surface light source. The Mini LED flexible light strip 401 adopts a flip-chip structure, meaning the electrodes of the Mini LED flexible light strip 401 are located at the bottom of the flexible circuit board.

[0060] Example 2

[0061] This embodiment provides a control method for a modular wirelessly powered illuminated car emblem. When the vehicle is started, the wireless transmitter 2 receives power synchronously with the vehicle position lights and sends a signal to the power supply chip assembly 105. The power supply chip assembly 105 starts the high-frequency inverter circuit, which generates a high-frequency alternating magnetic field at the position of the wireless transmitting coupling coil 103. The wireless receiving coupling coil of the wireless receiver 2 on the outside of the glass substrate 1 senses the change in magnetic field and generates current through electromagnetic induction. After rectification, it powers the light module. The light module 4 provides a light source for the car emblem 7. The power supply chip monitors the power supply status and temperature in real time and adjusts the output power through the PWM adjustment module integrated on the PCB power supply board 104.

[0062] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A modular wirelessly powered luminous car emblem, characterized in that, include: The system comprises a glass substrate mounted on a car, a wireless transmitter located inside the glass substrate, a wireless receiver located outside the glass substrate, and a modular car emblem connected to the wireless receiver. The wireless power supply module, consisting of the wireless transmitter and the wireless receiver, adopts Qi2 MPP protocol wireless charging technology. The wireless power supply module achieves power supply through magnetic ring positioning. The modular car emblem is integrally formed with the wireless receiver. The modular car emblem includes a car emblem logo and a light source module installed on the car emblem logo.

2. The modular wirelessly powered luminous car emblem according to claim 1, characterized in that, The manufacturing steps for the light source module are as follows: Step S1: Fabrication of Mini LED flexible light strip. The blue light chip is transferred to a flexible substrate for die bonding. An optical sealing layer made of transparent epoxy resin is used to seal and fix the blue light chip on the flexible substrate. The flexible substrate is a flexible circuit board. The optical sealing layer is used to protect the blue light chip. A diffusing agent is added to the transparent epoxy resin material of the optical sealing layer. The diffusing agent is used to make the light emitted by the blue light chip more uniform. Step S2: Fabrication of the PC film. Dots are printed on the lower surface of a PC film with a thickness of 0.5mm or more, or dots are formed by carbon dioxide laser. This allows the light from the Mini LED flexible light strip to enter from the side, be conducted within the PC film, and have total internal reflection destroyed by the dots to form a uniform surface light source. A layer of adhesive film containing yellow phosphor is attached to the PC film. The blue LED chip excites the yellow phosphor to form white light, thereby improving the light conversion efficiency and reducing energy loss. Step S3: Install the Mini LED flexible light strip on the side of the PC film and place a high reflectivity reflector under the PC film; thereby realizing the use of the Mini LED flexible light strip to emit light and enter the PC film with dots from the side. The dots destroy the light and form total internal reflection in the PC film, so that the light enters the backlight cavity through the upper surface of the PC film to form a surface light source.

3. A modular wirelessly powered luminous car emblem according to claim 1, characterized in that, The wireless transmitter includes: a PC+ABS housing, a transmitter ferrite located inside the PC+ABS housing, a wireless transmission coupling coil, a PCB power supply board, a power supply chip assembly, and a wiring harness. The electromagnetic induction transmitter, consisting of the transmitter ferrite and the wireless transmission coupling coil wound on the transmitter ferrite, is located at the upper end of the PC+ABS housing. The wireless transmission control assembly, consisting of the PCB power supply board and the power supply chip assembly, is located at the lower end of the PC+ABS housing. The electromagnetic induction transmitter and the wireless transmission control assembly are sealed in the PC+ABS housing with adhesive. The PCB power supply board is electrically connected to the wireless transmission coil via the wiring harness. The power supply chip assembly is electrically connected to the vehicle body power supply via the wiring harness. The PC+ABS housing is fixed to the inner side of the glass substrate with 3M adhesive. The wireless receiver and the light source module are integrally molded within a PUR injection-molded mask. The wireless receiver includes a wireless receiver chip assembly and an electromagnetic induction receiver consisting of a receiver ferrite and a wireless receiver coupling coil wound around the receiver ferrite. The electromagnetic induction receiver and the wireless receiver chip assembly are soldered to the back of the light source circuit board of the light source module by high-temperature soldering, so that the electronic components of the wireless receiver and the light source module share the same circuit board. A PVD film surrounding the wireless receiver and the light source module is provided inside the PUR injection-molded mask. The wireless receiver and the light source module are sealed inside the PUR injection-molded mask by potting glue. The PUR injection-molded mask is fixed to the outside of the glass substrate by 3M adhesive.

4. A modular wirelessly powered luminous car emblem according to claim 1, characterized in that, The glass substrate is either double-layer laminated glass or single-layer glass.

5. A modular wirelessly powered luminous car emblem according to claim 1, characterized in that, include: A glass substrate installed on a car, a wireless transmitter located inside the glass substrate, a wireless receiver located outside the glass substrate, and a light source module connected to the wireless receiver. The wireless transmitter includes: a PC+ABS housing, a transmitter ferrite located inside the PC+ABS housing, a wireless transmission coupling coil, a PCB power supply board, a power supply chip assembly, and a wiring harness. The electromagnetic induction transmitter, consisting of the transmitter ferrite and the wireless transmission coupling coil wound on the transmitter ferrite, is located at the upper end of the PC+ABS housing. The wireless transmission control assembly, consisting of the PCB power supply board and the power supply chip assembly, is located at the lower end of the PC+ABS housing. The electromagnetic induction transmitter and the wireless transmission control assembly are sealed in the PC+ABS housing with adhesive. The PCB power supply board is electrically connected to the wireless transmission coil via the wiring harness. The power supply chip assembly is electrically connected to the vehicle body power supply via the wiring harness. The PC+ABS housing is fixed to the inner side of the glass substrate with 3M adhesive. The wireless receiver and the light source module are integrally molded within a PUR injection-molded mask. The wireless receiver includes a wireless receiver chip assembly and an electromagnetic induction receiver consisting of a receiver ferrite and a wireless receiver coupling coil wound around the receiver ferrite. The electromagnetic induction receiver and the wireless receiver chip assembly are soldered to the back of the light source circuit board of the light source module by high-temperature soldering, so that the electronic components of the wireless receiver and the light source module share the same circuit board. A PVD film surrounding the wireless receiver and the light source module is provided inside the PUR injection-molded mask. The wireless receiver and the light source module are sealed inside the PUR injection-molded mask by potting glue. The PUR injection-molded mask is fixed to the outside of the glass substrate by 3M adhesive.

6. A wireless power supply module based on automotive glass according to claim 1, characterized in that, The glass substrate is either double-layer laminated glass or single-layer glass.

7. The control method for a modular wirelessly powered luminous car emblem according to claim 1, characterized in that, When the vehicle starts, the wireless transmitter receives power synchronously with the vehicle's position lights and sends signals to the power supply chip assembly. The power supply chip assembly activates the high-frequency inverter circuit, which generates a high-frequency alternating magnetic field at the position of the wireless transmitting coupling coil. The wireless receiving coupling coil on the outside of the glass substrate senses the change in the magnetic field and generates current through electromagnetic induction. After rectification, the current powers the lighting module, which provides light for the vehicle logo. The power supply chip monitors the power supply status and temperature in real time and adjusts the output power through the PWM adjustment module integrated on the PCB power supply board.

Images