CN215870923U - Device for realizing synchronous wireless power supply and wireless communication and coil winding - Google Patents
Device for realizing synchronous wireless power supply and wireless communication and coil winding Download PDFInfo
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- CN215870923U CN215870923U CN202121344169.0U CN202121344169U CN215870923U CN 215870923 U CN215870923 U CN 215870923U CN 202121344169 U CN202121344169 U CN 202121344169U CN 215870923 U CN215870923 U CN 215870923U
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Abstract
The utility model provides a device for realizing synchronous wireless power supply and wireless communication and a coil winding, wherein a first substrate and a second substrate are configured, a power supply coil and a communication coil are arranged on the first substrate, a power receiving coil and a communication coil are arranged on the second substrate, two groups of coils of the first substrate and the second substrate are close to each other, and non-contact transmission of electric energy and data signals is realized by means of magnetic field coupling at two sides. The utility model has the beneficial effects that: compared with the conventional coil mode, the communication speed is improved.
Description
Technical Field
The utility model relates to the field of wireless communication and wireless power supply, in particular to a device for realizing synchronous wireless power supply and wireless communication by using a double-coil mode.
Background
For some systems requiring non-contact power supply and information interactive transmission, such as a laser scanning radar device rotating 360 °, it is currently conventional to use a wound coil for wireless power supply, and then, based on the wireless power supply, perform wireless communication through a coil or an optoelectronic coupling communication mode:
1. the inside and outside induction type coil power supply adds the photoelectric coupling communication mode, and this mode carries out wireless power supply through inside and outside induction type coil, carries out signal transmission through photoelectric coupling mode simultaneously. The internal and external induction type coil cannot be in an ultrathin structure due to the fact that a framework is required in a winding mode; in the photoelectric coupling communication mode, due to the linear transmission characteristic of light, a special light path transmission link structure needs to be designed, and the light path structure is easily influenced by particles such as dust and has poor reliability.
2. The upper and lower enameled wire winding induction power supply and wireless communication modes are realized by adopting a single frequency mode, and the communication speed can only achieve dozens of Kbaud rate usually because the main frequency of a power supply signal is only about 100 KHz. Meanwhile, because the coil wound by the enameled wire is adopted, the double-coil integration of the communication coil and the power supply coil is difficult to realize.
SUMMERY OF THE UTILITY MODEL
According to the characteristics of the prior art, the utility model skillfully realizes the multiple frequency multiplexing technology of the double-winding single coil through innovative circuit design, so that the double windings can synchronously realize the coexistence of low-frequency electric energy transmission and high-frequency signal communication transmission. The technical scheme is as follows.
The utility model provides a realize coil assembly of synchronous wireless power supply and wireless communication, disposes first base plate and second base plate, be provided with two sets of coils on the first base plate, power supply coil and communication coil, be provided with two sets of coils on the second base plate, receive electric coil and communication coil, two sets of non-contact transmission that are close to each other, rely on the magnetic field coupling on both sides to realize electric energy and data signal.
Furthermore, the first substrate further comprises a first interface circuit, a first modulation and demodulation circuit and an electromagnetic excitation circuit, wherein the electromagnetic excitation circuit generates a low-frequency high-power alternating electric signal, excites a power supply coil to generate an alternating magnetic field signal and transmits the alternating magnetic field signal;
the coil of the power receiving coil induces the signal, the signal is automatically converted back to an alternating electric signal, and the alternating electric signal is converted into direct current through the resonance rectification filter circuit and transmitted from the interface circuit.
Furthermore, the modulation and demodulation circuit modulates the data signal transmitted from the outside to a carrier wave with a higher frequency, and then the data signal is coupled and transmitted through the communication coil.
And furthermore, a second substrate is configured, two groups of coils are arranged on the second substrate, the substrate further comprises a second interface circuit, a second modulation and demodulation circuit and a resonance rectification filter circuit, the communication coil of the second substrate induces electromagnetic signals, transmits the electromagnetic signals to the second modulation and demodulation circuit at the side, automatically filters carrier signals of the second modulation and demodulation circuit, restores the carrier signals into original data signals, and transmits the original data signals from the second interface circuit.
The utility model provides a coil winding, disposes first base plate, be provided with power supply coil winding and communication coil winding on the first base plate, power supply coil winding and communication coil winding adopt the compound mode of complete separation, and electromagnetic excitation circuit can adopt the mode of full-bridge excitation to the coil is given to the maximum efficiency output electric energy, can realize the wireless transmission of great power.
The power supply coil winding is used for charging and is connected with the electromagnetic excitation circuit, and the communication coil winding is used for communication and is connected with the modulation and demodulation circuit.
The power supply coil winding and the communication coil winding are connected in a single-point common ground mode, one end of the power supply coil winding is connected with one end of the communication coil winding and is grounded, the other end of the power supply coil winding is connected with the half-bridge electromagnetic excitation circuit, and the other end of the communication coil winding is connected with the modulation and demodulation circuit.
And arranging a second substrate, wherein the coil windings of the second substrate adopt a completely separated combination mode or a combination mode of connecting the coil windings in a single-point common ground mode.
The utility model has the beneficial effects that: since the wireless communication part is separated from the power transmission part, a higher carrier frequency can be adopted, and thus, high-speed wireless communication can be realized. Theoretically, if a carrier wave of 1GHz is adopted, 500Mbps data communication can be realized, and the speed is increased by thousands of times compared with the conventional single-winding coil mode.
Drawings
Fig. 1 is a schematic diagram of a dual-coil winding structure according to an embodiment of the present invention.
Fig. 2 is a functional block diagram of first and second substrates in accordance with an embodiment of the present invention.
Fig. 3 is a schematic circuit diagram of a fully separated mode of coil windings according to an embodiment of the present invention.
Fig. 4 is a schematic circuit diagram of a coil winding single-point common ground connection mode according to an embodiment of the present invention.
Detailed Description
The embodiments of the utility model will be described in detail below with reference to the drawings, but the utility model can be implemented in many different ways as defined and covered by the claims.
As shown in fig. 1-2, a coil device for realizing synchronous wireless power supply and wireless communication is an embodiment in which double coil windings are completely separated. First, a first substrate 10a is disposed, the first substrate 10a connects a power supply coil 20 and a communication coil 30, a second substrate 10b is disposed, the second substrate 10b connects a power receiving coil 20 and a communication coil 30, the two coils are close to each other, and non-contact transmission of power and data signals is realized by magnetic field coupling between the coils.
In the embodiment of the present invention, as shown in fig. 1, 20 is located at the outer ring, and can be used as a power supply coil or a flashlight coil, and the terminal 21 thereof extends outwards; 30 are located at the inner turns as communication coils, and terminals 31 are located at the outer turns. The power supply or receiving coil 20 and the communication coil 30 are enameled wires or PCB routing coils.
The first substrate 10a further includes a first interface circuit 50a, a modulation and demodulation circuit 40, and an electromagnetic excitation circuit 60, which form a power supply and communication loop with the power supply coil 20 and the communication coil 30.
The principle is as follows: the electromagnetic excitation circuit 60 generates a low-frequency high-power alternating electric signal (for example, 100 to 200Khz), and excites the power supply coil 20 to generate an alternating magnetic field signal and transmit the alternating magnetic field signal.
The first interface circuit 50a is used as a communication and power supply interface.
The modem circuit 40 modulates the data signal transmitted from the outside to a carrier wave with a higher frequency, such as a sine wave of 5MHz, and then transmits the modulated data signal through the communication coil.
The second substrate 10b is disposed and connected to the power receiving coil 20 and the communication coil 30. The second substrate 10b includes a second interface circuit 50b, a modem circuit 40, and a resonant rectifying filter circuit 70, which constitute a power receiving circuit and a communication circuit.
The communication coil 30 of the second substrate senses the electromagnetic signal, transmits the electromagnetic signal to the modulation and demodulation circuit 40 at the side, automatically filters the carrier signal, restores the carrier signal to the original data signal, and transmits the original data signal from the second interface circuit.
The power receiving coil 20 senses the electromagnetic signal, automatically converts the electromagnetic signal into an alternating electrical signal, converts the alternating electrical signal into direct current through the resonant rectification filter circuit 70, and transmits the direct current through the second interface.
Since the wireless communication part is separated from the power transmission part, a higher carrier frequency can be adopted, and thus, high-speed wireless communication can be realized. Theoretically, if a carrier wave of 1GHz is adopted, 500Mbps data communication can be realized, and the speed is increased by thousands of times compared with the conventional single-winding coil mode. As shown in fig. 3-4, which is a schematic diagram of a circuit structure of different coil winding connection modes, a first substrate is configured first, and the first substrate is connected with a power supply coil winding and a communication coil winding, the power supply coil winding forms a power supply coil, and the communication coil winding forms a communication coil. The power supply coil winding and the communication coil winding are combined in a completely separated mode, the electromagnetic excitation circuit can output electric energy to the coils in a full-bridge excitation mode at the maximum efficiency, and wireless power transmission with larger power can be realized. The communication coil winding is used for communication, one end of the communication coil winding is connected with the modulation and demodulation circuit, and the other end of the communication coil winding is grounded.
As shown in fig. 4, the power supply coil winding and the communication coil winding are connected in a single-point common ground manner, one end of the power supply coil winding is connected with one end of the communication coil winding and grounded, the other end of the power supply coil winding is connected with the electromagnetic excitation circuit, and the other end of the communication coil winding is connected with the modulation and demodulation circuit.
And arranging a second substrate, wherein the coil windings of the second substrate adopt a completely separated combination mode or a combination mode of connecting the coil windings in a single-point common ground mode.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The device for realizing synchronous wireless power supply and wireless communication is characterized in that a first substrate and a second substrate are arranged, a power supply coil and a communication coil are arranged on the first substrate, a power receiving coil and a communication coil are arranged on the second substrate, two groups of coils of the first substrate and the second substrate are close to each other, and non-contact transmission of electric energy and data signals is realized by means of magnetic field coupling on two sides.
2. The apparatus of claim 1, wherein the first substrate further comprises a first interface circuit, a first modem circuit, and an electromagnetic excitation circuit, the electromagnetic excitation circuit generates a low-frequency high-power alternating electrical signal, excites the power supply coil to generate an alternating magnetic field signal, and transmits the alternating magnetic field signal.
3. The apparatus of claim 2, wherein the modem circuit modulates the externally transmitted data signal onto a carrier wave with a higher frequency, and then transmits the modulated data signal through the communication coil.
4. The apparatus of claim 3, wherein the second substrate further comprises a second interface circuit, a second modem circuit and a resonant rectifying filter circuit, the communication coil of the second substrate senses the electromagnetic signal and transmits the electromagnetic signal to the second modem circuit on the opposite side, and the carrier signal is automatically filtered out, restored to the original data signal and transmitted from the second interface circuit;
the receiving coil induces electromagnetic signals, the electromagnetic signals are automatically converted back to alternating electric signals, the alternating electric signals are converted into direct current through the resonant rectification filter circuit, and the direct current is transmitted from the interface circuit.
5. A coil winding, for forming a power supply coil and a communication coil according to any one of claims 2 to 4, wherein the power supply coil winding and the communication coil winding are arranged on the first substrate, the power supply coil winding and the communication coil winding are completely separated from each other, and the electromagnetic excitation circuit adopts a full-bridge excitation mode to output electric energy to the coil, thereby realizing wireless power transmission.
6. A coil winding according to claim 5, wherein the power supply coil winding is used for power supply and is connected with an electromagnetic excitation circuit, and the communication coil winding is used for communication and is connected with a modulation and demodulation circuit.
7. The coil winding of claim 5, wherein the power supply coil winding and the communication coil winding are connected in a single-point common ground manner, one end of the power supply coil winding is connected with one end of the communication coil winding and grounded, the other end of the power supply coil winding is connected with the half-bridge electromagnetic excitation circuit, and the other end of the communication coil winding is connected with the modulation and demodulation circuit.
8. A coil winding according to claim 7, wherein a second substrate is provided, and the coil winding of the second substrate is in a completely separated combination or in a combination in which the coils are connected in common at a single point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121344169.0U CN215870923U (en) | 2021-06-17 | 2021-06-17 | Device for realizing synchronous wireless power supply and wireless communication and coil winding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121344169.0U CN215870923U (en) | 2021-06-17 | 2021-06-17 | Device for realizing synchronous wireless power supply and wireless communication and coil winding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215870923U true CN215870923U (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121344169.0U Active CN215870923U (en) | 2021-06-17 | 2021-06-17 | Device for realizing synchronous wireless power supply and wireless communication and coil winding |
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| CN (1) | CN215870923U (en) |
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2021
- 2021-06-17 CN CN202121344169.0U patent/CN215870923U/en active Active
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