Vehicle-mounted wireless fast charging assembly

Abstract

The invention discloses a vehicle-mounted wireless fast charging assembly which comprises a charging substrate and a PCB (printed circuit board) mounted on the charging substrate, and a circuit component is mounted on the PCB; the circuit component comprises a single chip microcomputer, a wireless charging modulation circuit, at least three transmitting coils, an RGB full-color lamp display circuit and a buzzer sound circuit, the plurality of transmitting coils are arranged at different heights on the PCB, and each transmitting coil is a copper coil in the PCB; the wireless charging modulation circuit, the RGB full-color lamp display circuit and the buzzer sound circuit are electrically connected with the single-chip microcomputer, the vehicle-mounted power supply is electrically connected with the transmitting coil through the wireless charging modulation circuit, and the wireless charging modulation circuit is used for modulating the vehicle-mounted power supply to an applicable power supply of the mobile device. The RGB full-color lamp display circuit is used for displaying the state of the charging process of the mobile equipment, and the buzzer sound circuit is used for carrying out sound prompt on the charging process of the mobile equipment. The method is low in cost and good in user experience.

Description

Technical Field

[0001] The present invention belongs to the technical field of new energy vehicle charging, and particularly relates to a vehicle-mounted wireless fast charging assembly. Background Art

[0002] With the rapid development of new energy vehicles, wireless charging technology has gradually become a research hotspot due to its convenience and safety. To achieve efficient energy transfer in existing vehicle-mounted high-power wireless charging systems, a multi-transmitter coil array layout is generally adopted. This technology arranges multiple planar spiral coils in the charging substrate, which results in an overly large size of the entire charging substrate.

[0003] On the other hand, there are obvious deficiencies in the human-computer interaction design of existing wireless charging systems. Currently, mainstream products generally use monochromatic LED indicators for status feedback. For example, red indicates charging and green indicates charging completion. Such a simple display method has serious information limitations. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention proposes a vehicle-mounted wireless fast charging assembly.

[0005] In order to achieve the above purpose, the technical solution of the present invention is as follows:

[0006] The present invention discloses a vehicle-mounted wireless fast charging assembly, including: a charging substrate and a PCB board mounted on the charging substrate, and circuit components are mounted on the PCB board;

[0007] The circuit components include: a single-chip microcomputer, a wireless charging modulation circuit, at least three transmitter coils, an RGB full-color light display circuit, and a buzzer sound circuit. The multiple transmitter coils are placed at different heights on the PCB board, and each transmitter coil is a copper coil within the PCB board;

[0008] The wireless charging modulation circuit, the RGB full-color light display circuit, and the buzzer sound circuit are respectively electrically connected to the single-chip microcomputer, and the vehicle-mounted power supply is electrically connected to the transmitter coil through the wireless charging modulation circuit. The wireless charging modulation circuit is used to modulate the vehicle-mounted power supply to a power supply suitable for the mobile device. The RGB full-color light display circuit is used to display the status of the charging process of the mobile device, and the buzzer sound circuit is used to give a sound prompt for the charging process of the mobile device.

[0009] The present invention discloses a vehicle-mounted wireless fast charging assembly, which has the following beneficial effects:

[0010] First, the transmitter coil of the present invention is a copper coil within the PCB board, which can effectively reduce the cost of the vehicle-mounted wireless fast charging assembly.

[0011] Second, the in-vehicle wireless fast charging assembly of the present invention is additionally provided with an RGB full-color light display circuit and a buzzer sound circuit to interestingly display the charging process and improve the user experience.

[0012] Based on the above technical solutions, the following improvements can also be made:

[0013] As a preferred solution, the projections of two adjacent transmitting coils on the PCB have partially overlapping areas.

[0014] Adopting the above preferred solution, the overall structure is more compact.

[0015] As a preferred solution, two adjacent transmitting coils are respectively arranged on the TOP surface and the BOT surface of the PCB.

[0016] Adopting the above preferred solution, the structure is reasonable.

[0017] As a preferred solution, a central transmitting coil and at least two peripheral transmitting coils distributed around the central transmitting coil are installed on the PCB, and the central transmitting coil is arranged on the BOT surface.

[0018] Adopting the above preferred solution, the structure is reasonable.

[0019] As a preferred solution, the RGB full-color light display circuit includes: red light beads, green light beads, blue light beads, triodes connected in series with each light bead, and several resistors. The triodes are used to drive the corresponding light beads to emit light.

[0020] Adopting the above preferred solution, the RGB full-color light display circuit has a simple structure and low cost.

[0021] As a preferred solution, the single-chip microcomputer is electrically connected to the triodes of the RGB full-color light display circuit. The single-chip microcomputer outputs the duty cycle of the PWM waveform to adjust the brightness of the corresponding light beads.

[0022] Adopting the above preferred solution, using the single-chip microcomputer to adjust the brightness and color of the light beads improves the user experience.

[0023] As a preferred solution, the buzzer sound circuit includes: a buzzer, a triode connected in series with the buzzer, and several resistors. The triode drives the buzzer to make a sound.

[0024] Adopting the above preferred solution, the buzzer sound circuit has a simple structure and low cost.

[0025] As a preferred solution, the single-chip microcomputer is electrically connected to the triodes of the buzzer sound circuit. The single-chip microcomputer outputs the duty cycle of the PWM waveform to adjust the frequency and volume of the corresponding buzzer sound.

[0026] Adopt the above - mentioned preferred solution, use a single - chip microcomputer to adjust the frequency and volume of the buzzer sound, and improve the user experience.

[0027] As a preferred solution, the circuit components further include: a voltage - regulating circuit;

[0028] The vehicle power supply is electrically connected to the transmitting coil through the voltage - regulating circuit and the wireless charging modulation circuit in sequence. The voltage - regulating circuit is used to step down or step up the vehicle power supply.

[0029] Adopt the above - mentioned preferred solution, use the voltage - regulating circuit to adjust different vehicle power supplies to the appropriate size for the mobile device.

[0030] As a preferred solution, a magnetic ring is installed around any one or more transmitting coils. The magnetic ring is arranged on the PCB board and is concentric with the corresponding transmitting coil.

[0031] Adopt the above - mentioned preferred solution, and it can be adsorbed and fixed with a mobile device having a magnetic adsorption structure. Brief Description of the Drawings

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, so they should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0033] Figure 1 It is a top - view of the PCB board provided by the embodiment of the present invention.

[0034] Figure 2 It is a block diagram of the circuit components provided by the embodiment of the present invention.

[0035] Figure 3 It is a circuit diagram of the RGB full - color light - display circuit provided by the embodiment of the present invention.

[0036] Figure 4 It is a circuit diagram of the buzzer sound circuit provided by the embodiment of the present invention.

[0037] Figure 5 It is a schematic diagram of the PCB board, the micro - channel liquid - cooling plate, and the heat - conducting cushion block provided by the embodiment of the present invention.

[0038] Wherein: 1 - PCB board, 21 - single - chip microcomputer, 22 - wireless charging modulation circuit, 23 - transmitting coil, 231 - central transmitting coil, 232 - peripheral transmitting coil, 24 - RGB full - color light - display circuit, 25 - buzzer sound circuit, 26 - voltage - regulating circuit, 27 - backlight area, 3 - micro - channel liquid - cooling plate, 4 - heat - conducting cushion block. Detailed Embodiments

[0039] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0041] The expression "including" an element is an "open-ended" expression, which only means that there are corresponding components or steps, and should not be construed as excluding additional components or steps.

[0042] In order to achieve the purpose of the present invention, in some embodiments of the in-vehicle wireless fast charging assembly, as Figure 1 and 2 shown, the in-vehicle wireless fast charging assembly includes: a charging substrate and a PCB board 1 mounted on the charging substrate, and circuit components are mounted on the PCB board 1.

[0043] The circuit components include: a single-chip microcomputer 21, a wireless charging modulation circuit 22, three transmitting coils 23, an RGB full-color light display circuit 24, and a buzzer sound circuit 25. The plurality of transmitting coils 23 are placed at different heights on the PCB board 1, and each transmitting coil 23 is a copper coil inside the PCB board 1.

[0044] The wireless charging modulation circuit 22, the RGB full-color light display circuit 24, and the buzzer sound circuit 25 are respectively electrically connected to the single-chip microcomputer 21, and an in-vehicle power supply (such as: 12V) is electrically connected to the transmitting coil 23 through the wireless charging modulation circuit 22. The wireless charging modulation circuit 22 is used to modulate the in-vehicle power supply to a power supply suitable for the mobile device. The RGB full-color light display circuit 24 is used to display the charging status of the mobile device, and the buzzer sound circuit 25 is used to give a sound prompt for the charging process of the mobile device.

[0045] The in-vehicle power supply supplies power to the transmitting coil 23. Through the alternating current magnetic field, the coil built into the mobile device induces a current in the alternating magnetic field, and after rectification and voltage stabilization, it charges the battery.

[0046] The present invention discloses an in-vehicle wireless fast charging assembly, which has the following beneficial effects:

[0047] First, the transmitting coil 23 of the present invention is a copper coil inside the PCB board 1 (that is: prepared using the copper foil of the PCB board 1 itself), which can effectively reduce the cost of the in-vehicle wireless fast charging assembly.

[0048] Second, the in-vehicle wireless fast charging assembly of the present invention is additionally provided with an RGB full-color light display circuit 24 and a buzzer sound circuit 25 to display the charging process interestingly and improve the user experience.

[0049] In order to further optimize the implementation effect of the present invention, in some other embodiments, the remaining characteristic technologies are the same, except that the projections of two adjacent transmitting coils 23 on the PCB board 1 have partially overlapping areas.

[0050] Adopting the above preferred solution, the overall structure is more compact.

[0051] In order to further optimize the implementation effect of the present invention, in some other embodiments, the remaining characteristic technologies are the same, except that a central transmitting coil 231 is installed near the center position of the PCB, and two peripheral transmitting coils 232 are distributed around the central transmitting coil 231, and the central transmitting coil 231 is arranged on the BOT surface, and the two peripheral transmitting coils 232 are both arranged on the TOP surface.

[0052] Adopting the above preferred solution, the structure is reasonable.

[0053] In order to further optimize the implementation effect of the present invention, in some other embodiments, the remaining characteristic technologies are the same, except that, as Figure 3 shown, the RGB full-color light display circuit 24 includes: red light beads, green light beads, blue light beads, triodes connected in series with each light bead, and several resistors, and the triodes are used to drive the corresponding light beads to emit light.

[0054] The single-chip microcomputer 21 is electrically connected to the triodes of the RGB full-color light display circuit 24, and the single-chip microcomputer 21 outputs the duty cycle of the PWM waveform to adjust the brightness of the corresponding light beads.

[0055] Adopting the above preferred solution, the RGB full-color light display circuit 24 has a simple structure and low cost. Using the single-chip microcomputer 21 to adjust the brightness and color of the light beads improves the user experience. It should be noted that a backlight area 27 is provided on the charging substrate, and the above red light beads, green light beads, and blue light beads are displayed in the backlight area 27. The backlight area 27 is outside the transmitting coil.

[0056] The RGB full-color light display circuit 24 can be used to distinguish fault types (such as: foreign object detection alarm, over-temperature protection trigger, coil detuning, etc.), so that users cannot quickly locate the root cause of the problem.

[0057] In order to further optimize the implementation effect of the present invention, in some other embodiments, the remaining characteristic technologies are the same, except that, as Figure 4As shown, the buzzer sound circuit 25 includes: a buzzer, a triode connected in series with the buzzer, and several resistors. The triode drives the buzzer to produce sound. The single-chip microcomputer 21 is electrically connected to the triode of the buzzer sound circuit 25. The single-chip microcomputer 21 outputs the duty cycle of the PWM waveform to adjust the frequency and volume of the corresponding buzzer sound.

[0058] With the above preferred solution, the buzzer sound circuit 25 has a simple structure and low cost. Using the single-chip microcomputer 21 to adjust the frequency and volume of the buzzer sound improves the user experience.

[0059] To further optimize the implementation effect of the present invention, in some other embodiments, the other characteristic technologies are the same, except that the circuit components further include: a voltage regulating circuit 26;

[0060] The vehicle-mounted power supply is electrically connected to the transmitting coil 23 through the voltage regulating circuit 26 and the wireless charging modulation circuit 22 in sequence. The voltage regulating circuit 26 is used to step down or step up the vehicle-mounted power supply.

[0061] With the above preferred solution, the voltage regulating circuit 26 is used to adjust different vehicle-mounted power supplies to a suitable size for the mobile device.

[0062] The vehicle-mounted power supply has various power forms. When the vehicle breaks down, the vehicle-mounted power supply serves as a backup power supply, and the voltage regulating circuit 26 steps down or steps up it.

[0063] It should be noted that after the voltage regulating circuit 26 regulates the voltage of the vehicle-mounted power supply, it can also supply power to the RGB full-color lamp display circuit 24 and the buzzer sound circuit 25.

[0064] To further optimize the implementation effect of the present invention, in some other embodiments, the other characteristic technologies are the same, except that a magnetic ring is installed around any one of the transmitting coils 23. The magnetic ring is arranged on the PCB board 1 and is concentrically arranged with the corresponding transmitting coil 23.

[0065] With the above preferred solution, it can be adsorbed and fixed to a mobile device with a magnetic adsorption structure.

[0066] To further optimize the implementation effect of the present invention, in some other embodiments, the other characteristic technologies are the same, except that, as Figure 5 shown, a microchannel liquid cooling plate 3 is installed below the PCB board 1. Microchannels are provided on the microchannel liquid cooling plate 3, and a coolant flows in the microchannels. The microchannel liquid cooling plate 3 is connected to the vehicle-mounted cooling system.

[0067] Furthermore, it should be noted that the PCB board 1 is connected to the microchannel liquid cooling plate 3 through a heat-conducting cushion block 4 to improve the seismic resistance and heat dissipation capacity of the PCB board 1.

[0068] Further, the contact area between the heat-conducting spacer block 4 and the PCB board 1 is smaller than the contact area between the heat-conducting spacer block 4 and the microchannel liquid-cooling plate 3.

[0069] Further, the non-contact surface of the heat-conducting spacer block 4 is wavy.

[0070] Further, the charging substrate is connected to the vehicle metal frame through a heat-conducting gasket to utilize the vehicle body for auxiliary heat dissipation.

[0071] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "center", "both ends", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0072] In the present invention, unless otherwise clearly defined and limited, the terms "mounted", "set", "connected", "fixed", "swiveling connection", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. It can be the internal communication of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0073] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. The vehicle-mounted wireless fast charging assembly is characterized by: Comprising: A charging substrate and a PCB board mounted on the charging substrate, and circuit components are mounted on the PCB board; The circuit components include: a single-chip microcomputer, a wireless charging modulation circuit, at least three transmitting coils, an RGB full-color lamp display circuit, and a buzzer sound circuit. The multiple transmitting coils are placed at different heights on the PCB board, and each transmitting coil is a copper coil inside the PCB board; The wireless charging modulation circuit, the RGB full-color lamp display circuit, and the buzzer sound circuit are respectively electrically connected to the single-chip microcomputer, and the vehicle-mounted power supply is electrically connected to the transmitting coil through the wireless charging modulation circuit. The wireless charging modulation circuit is used to modulate the vehicle-mounted power supply to a suitable power supply for the mobile device. The RGB full-color lamp display circuit is used to display the charging status of the mobile device, and the buzzer sound circuit is used to give a sound prompt during the charging process of the mobile device.

2. The vehicle-mounted wireless fast charging assembly according to claim 1, characterized in that: The projections of two adjacent transmitting coils on the PCB board have partially overlapping areas.

3. The in-vehicle wireless fast charging assembly according to claim 1, wherein, Two adjacent transmitting coils are respectively arranged on the TOP surface of the PCB board and the BOT surface of the PCB board.

4. The in-vehicle wireless fast charging assembly according to claim 3, wherein A central transmitting coil and at least two peripheral transmitting coils distributed around the central transmitting coil are mounted on the PCB, and the central transmitting coil is arranged on the BOT surface.

5. The in-vehicle wireless fast charging assembly according to claim 1, characterized in that, The RGB full-color lamp display circuit includes: red lamp beads, green lamp beads, blue lamp beads, a triode in series with each lamp bead, and several resistors. The triode is used to drive the corresponding lamp bead to emit light.

6. The in-vehicle wireless fast charging assembly according to claim 5, wherein, The single-chip microcomputer is electrically connected to the triode of the RGB full-color lamp display circuit, and the single-chip microcomputer outputs the duty cycle of the PWM waveform to adjust the brightness of the corresponding lamp bead.

7. The in-vehicle wireless fast charging assembly according to claim 1, wherein, The buzzer sound circuit includes: a buzzer, a triode in series with the buzzer, and several resistors. The triode drives the buzzer to make a sound.

8. The in-vehicle wireless fast charging assembly according to claim 7, wherein, The single-chip microcomputer is electrically connected to the triode of the buzzer sound circuit, and the single-chip microcomputer outputs the duty cycle of the PWM waveform to adjust the frequency and volume of the corresponding buzzer sound.

9. The in-vehicle wireless fast charging assembly according to any one of claims 1-8, characterized in that, The circuit components further include: a voltage regulating circuit; The vehicle-mounted power supply is electrically connected to the transmitting coil through the voltage regulating circuit and the wireless charging modulation circuit in sequence. The voltage regulating circuit is used to step down or step up the vehicle-mounted power supply.

10. The in-vehicle wireless fast charging assembly according to any one of claims 1-8, characterized in that, A magnetic ring is installed around any one or more of the transmitting coils. The magnetic ring is arranged on the PCB board and is concentrically arranged with the corresponding transmitting coil.

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