Wireless energy and signal transmission device, wireless energy and signal transmission device construction method and equipment

Abstract

This application discloses a wireless power-to-information simultaneous transmission device, its construction method, and an electronic device. The device includes a power transmitting module and a power receiving module, with power transmission between them achieved through two sets of mutually inductively coupled coils. The device also includes a first information transmission module and a second information transmission module, which share a zeroth information transmitting sub-circuit located in the power transmitting module. This application utilizes two sets of mutually inductively coupled coils to achieve a distributed arrangement of capacitors and coils, thereby reducing interference voltage on the information side while transmitting power. Furthermore, by setting up two information transmission modules and using the two resonant frequencies of a multi-resonant circuit to transmit information, it overcomes the limitation of the power transmission channel on the information transmission rate, suppresses mutual interference between the two information paths, and fundamentally reduces the interference of power transmission on information transmission. This eliminates the need for additional wave traps, reduces device size, and avoids additional losses.

Description

Technical Field

[0001] This application relates to a wireless power and information synchronous transmission device, a method for constructing the wireless power and information synchronous transmission device, and an electronic device, belonging to the field of wireless power and information synchronous transmission. Background Technology

[0002] Wireless Power Transfer (WPT) technology has become a research hotspot in the field of modern power transmission. In various practical applications, systems not only need to achieve wireless power transmission but also require one-way or two-way real-time information synchronization capabilities. Existing radio frequency-based communication solutions, such as Bluetooth (BT), ZigBee, and IEEE 802.11 (Wi-Fi), suffer from weak anti-interference capabilities in high-frequency complex electromagnetic environments, severe electromagnetic wave transmission loss in non-air transmission media, long communication handshake times, and significant transmission delays, making them unsuitable for WPT systems.

[0003] Furthermore, Simultaneous wireless power and data transfer (SWPDT) technology has attracted increasing attention due to its advantages in convenience, security, and high reliability. However, to improve power transmission performance, the power transmission channel typically operates at a fixed resonant frequency, resulting in a high quality factor and narrow effective bandwidth, which severely limits the information transmission rate and makes it difficult to meet the ever-growing demand for high-speed data interaction. Summary of the Invention

[0004] This application discloses a wireless communication device, a method for constructing the wireless communication device, and an electronic device.

[0005] The wireless power transmission device in this application includes a power transmitting module and a power receiving module. Power transmission between the power transmitting module and the power receiving module is achieved through two sets of mutually inductively coupled coils.

[0006] The device further includes a first information transmission module and a second information transmission module. The first information transmission module and the second information transmission module share a zero information transmission sub-circuit disposed in the energy transmission side module. The first information transmission module further includes a first information transmission sub-circuit disposed in the energy transmission side module and a first information receiving sub-circuit disposed in the energy receiving side module. The second information transmission module further includes a second information transmission sub-circuit disposed in the energy transmission side module and a second information receiving sub-circuit disposed in the energy receiving side module.

[0007] In some embodiments, the energy transmitting side module includes a DC power supply, an inverter circuit, a transmitting side compensation sub-circuit, a first energy transmitting coil, and a second energy transmitting coil; the energy receiving side module includes a load, a rectifier filter circuit, a receiving side compensation sub-circuit, a first energy receiving coil, and a second energy receiving coil. The first energy transmitting coil and the first energy receiving coil form a first mutually inductively coupled coil group, and the second energy transmitting coil and the second energy receiving coil form a second mutually inductively coupled coil group.

[0008] In some embodiments, the first energy transmitting coil and the first energy receiving coil are DD-type coils, and the second energy transmitting coil and the second energy receiving coil are circular coils; The first energy transmitting coil, the first energy receiving coil, the second energy transmitting coil, and the second energy receiving coil are arranged on the same plane, and the first energy transmitting coil is arranged inside the ring formed by the second energy transmitting coil, and the first energy receiving coil is arranged inside the ring formed by the second energy receiving coil.

[0009] In some implementations, the first information transmitting sub-circuit is connected in parallel across the two ends of the first energy transmitting coil, and the second information transmitting sub-circuit is connected in parallel across the two ends of the second energy transmitting coil; The zeroth information transmitting sub-circuit and the first information transmitting sub-circuit are connected by a transformer to transmit electrical signals, and the zeroth information transmitting sub-circuit and the second information transmitting sub-circuit are connected by a transformer to transmit electrical signals. The first information receiving sub-circuit is connected in parallel across the two ends of the first energy receiving coil, and the second information receiving sub-circuit is connected in parallel across the two ends of the second energy receiving coil.

[0010] In some embodiments, the zero information transmitting sub-circuit includes a parallel resonant branch and a series resonant branch. The series resonant branch includes a first coupling coil and a second coupling coil connected in series. The first information transmitting sub-circuit includes a third coupling coil, and the second information transmitting sub-circuit includes a fourth coupling coil. The first coupling coil and the third coupling coil form a transformer, and the second coupling coil and the fourth coupling coil form a transformer.

[0011] In some embodiments, the parallel resonant branch includes an information transmitting source and a parallel branch resonant inductor and a parallel branch resonant capacitor, wherein the resonant inductor and the resonant capacitor are connected in parallel and then connected in series with the information transmitting source; The parallel branch resonant inductor, the parallel branch resonant capacitor, and the preset channel center angular frequency satisfy a first preset relationship.

[0012] In some embodiments, the series resonant branch further includes a series resonant capacitor, which is connected in series with the first coupling coil and the second coupling coil; The series branch resonant capacitor, the first coupling coil, the second coupling coil, and the preset channel center angular frequency satisfy a second preset relationship.

[0013] In some embodiments, the first information receiving sub-circuit includes a first coupling branch and a second coupling branch, the first coupling branch being connected in parallel across the two ends of the first energy receiving coil, and the first coupling branch and the second coupling branch transmitting electrical signals through a transformer; The second information receiving sub-circuit includes a third coupling branch and a fourth coupling branch. The third coupling branch is connected in parallel across the two ends of the second energy receiving coil. The third coupling branch and the fourth coupling branch transmit electrical signals through a transformer.

[0014] The method for constructing a wireless signal transmission device in this application is used to construct the attribute parameters of the wireless signal transmission device in the above embodiments. The method specifically includes: The mutual inductance between the energy transmitting module and the energy receiving module is determined based on the mutual inductance between the first energy transmitting coil and the first energy receiving coil, and the mutual inductance between the second energy transmitting coil and the second energy receiving coil. Based on the energy carrier angular frequency and the mutual inductance between the energy transmitting module and the energy receiving module, determine the inductance and capacitance parameters of the energy transmitting module and the energy receiving module. Based on the channel center angular frequency, determine the inductance and capacitance parameters of the zeroth information transmitting sub-circuit; Based on the channel center frequency, the inductance parameters and capacitance parameters of the zeroth information transmitting sub-circuit, the carrier frequency, inductance parameters and capacitance parameters of the first information transmission module and the second information transmission module are determined to realize the attribute parameters for constructing the wireless simultaneous transmission device.

[0015] The electronic device in this application includes a memory and a processor. The memory stores a computer program, and when the computer program is executed by the processor, the above-described method for constructing a wireless communication device is implemented.

[0016] The beneficial effects of this application are as follows: The wireless power-to-information simultaneous transmission device in this application utilizes two sets of mutually inductively coupled coils to achieve a distributed arrangement of compensation capacitors and extraction coils. This reduces interference voltage on the information side and improves information transmission quality while transmitting wireless power. Furthermore, by setting up two information transmission modules, it utilizes the two resonant frequencies of a multi-resonant circuit to transmit information, thereby overcoming the limitation of the inherent narrow bandwidth of the power transmission channel on the information transmission rate and suppressing mutual interference between the two information paths. In addition, since the above effects fundamentally reduce the interference of power transmission on information transmission, there is no need to set up an additional wave trap, thereby reducing the device size and avoiding additional losses. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the circuit structure of the wireless communication device in the embodiments of this application; Figure 2 This is a schematic diagram of the arrangement of the first energy transmitting coil, the first energy receiving coil, the second energy transmitting coil, and the second energy receiving coil in the embodiments of this application; Figure 3 This is a flowchart illustrating the method for constructing a wireless communication device in the embodiments of this application. Figure 4 This is one of the attribute parameter waveform diagrams of the wireless communication device in the embodiments of this application; Figure 5 This is the second waveform diagram of the attribute parameters of the wireless communication device in the embodiments of this application; Figure 6 This is the third waveform diagram of the attribute parameters of the wireless communication device in the embodiments of this application; Figure 7 This is the fourth waveform diagram of the attribute parameters of the wireless communication device in the embodiments of this application. Detailed Implementation

[0018] The wireless power transmission device in this application includes a power transmitting module and a power receiving module. Power transmission between the power transmitting module and the power receiving module is achieved through two sets of mutually inductively coupled coils. The device also includes a first information transmission module and a second information transmission module. The first information transmission module and the second information transmission module share a zero information transmission sub-circuit disposed on the energy transmission side module. The first information transmission module also includes a first information transmission sub-circuit disposed on the energy transmission side module and a first information receiving sub-circuit disposed on the energy receiving side module. The second information transmission module also includes a second information transmission sub-circuit disposed on the energy transmission side module and a second information receiving sub-circuit disposed on the energy receiving side module.

[0019] In some implementations, the energy transmitting side module includes a DC power supply, an inverter circuit, a transmitting side compensation sub-circuit, a first energy transmitting coil, and a second energy transmitting coil; the energy receiving side module includes a load, a rectifier filter circuit, a receiving side compensation sub-circuit, a first energy receiving coil, and a second energy receiving coil. The first energy transmitting coil and the first energy receiving coil form a first mutually inductively coupled coil group, and the second energy transmitting coil and the second energy receiving coil form a second mutually inductively coupled coil group.

[0020] In some implementations, the first information transmitting sub-circuit is connected in parallel across the two ends of the first energy transmitting coil, and the second information transmitting sub-circuit is connected in parallel across the two ends of the second energy transmitting coil; The zero information transmitting sub-circuit and the first information transmitting sub-circuit transmit electrical signals through a transformer, and the zero information transmitting sub-circuit and the second information transmitting sub-circuit transmit electrical signals through a transformer. The first information receiving sub-circuit is connected in parallel across the two ends of the first energy receiving coil, and the second information receiving sub-circuit is connected in parallel across the two ends of the second energy receiving coil.

[0021] In some embodiments, the zero information transmitting sub-circuit includes a parallel resonant branch and a series resonant branch. The series resonant branch includes a first coupling coil and a second coupling coil connected in series. The first information transmitting sub-circuit includes a third coupling coil, and the second information transmitting sub-circuit includes a fourth coupling coil. The first coupling coil and the third coupling coil form a transformer, and the second coupling coil and the fourth coupling coil form a transformer.

[0022] In some implementations, the parallel resonant branch includes an information transmitter and a parallel branch resonant inductor and a parallel branch resonant capacitor, which are connected in parallel and then connected in series with the information transmitter. The parallel branch resonant inductor, the parallel branch resonant capacitor, and the preset channel center angular frequency satisfy the first preset relationship.

[0023] In some embodiments, the series resonant branch further includes a series resonant capacitor, which is connected in series with the first coupling coil and the second coupling coil. The series branch resonant capacitor, the first coupling coil, the second coupling coil, and the preset channel center angular frequency satisfy the second preset relationship.

[0024] In some embodiments, the first information receiving sub-circuit includes a first coupling branch and a second coupling branch. The first coupling branch is connected in parallel across the two ends of the first energy receiving coil. The first coupling branch and the second coupling branch transmit electrical signals through a transformer. The second information receiving sub-circuit includes a third coupling branch and a fourth coupling branch. The third coupling branch is connected in parallel across the two ends of the second energy receiving coil. The third coupling branch and the fourth coupling branch transmit electrical signals through a transformer.

[0025] Specifically, please refer to Figure 1 , Figure 1 A specific example of the wireless communication device described in the above embodiments is shown. Figure 1 In the middle, the energy emission side module includes a DC power supply. U p Inverter circuit, transmitter-side compensator circuit, first energy transmitting coil L p1 and the second energy transmitting coil L p2 The inverter circuit consists of a switching transistor. Q 1. Q 2. Q 3. Q 4、 The full-bridge inverter circuit consists of switching transistors. Q 1 and Q 3. Form the first bridge arm, and the connection point between the two is the midpoint of the first bridge arm. Switching transistor Q 2 and Q 4. A second bridge arm is formed, and the connection point between the first and second bridge arms is the midpoint of the second bridge arm. The midpoints of the first and second bridge arms are respectively connected to the two ends of the transmitter-side compensation sub-circuit. The transmitter-side compensation sub-circuit adopts an LCC compensation topology, including a compensation inductor. L f1 Parallel compensation capacitors C f1 Series compensation capacitor C p1 and C p2 First energy transmitting coil L p1 With the second energy transmitting coil L p2 Series configuration, series compensation capacitor C p1 With the first energy transmitting coil L p1 Series arrangement, series compensation capacitor C p2 With the second energy transmitting coil L p2 Series arrangement, parallel compensation capacitor C f1 Connected to the first energy transmitting coil L p1 With the second energy transmitting coil L p2The two ends of the branch formed by the series connection.

[0026] also, Figure 1 In the middle, the energy receiving side module includes a load, a rectifier and filter circuit, a receiving side compensation sub-circuit, and a first energy receiving coil. L s1 and the second energy receiving coil L s2 The load includes load resistors connected in parallel. R L and output capacitor C o The rectifier and filter circuit can be any rectifier and filter circuit currently available in related technologies; this application does not impose any specific limitations. The receiving-side compensation sub-circuit also adopts an LCC compensation topology, including a compensation inductor. L f2 Series compensation capacitor C s1 , C s2 and parallel compensation capacitors C f2 First energy receiving coil L s1 With the second energy receiving coil L s2 Series configuration, series compensation capacitor C s1 With the first energy receiving coil L s1 Series arrangement, series compensation capacitor C s2 With the second energy transmitting coil L s2 Series arrangement, parallel compensation capacitor C f2 Connected to the first energy receiving coil L s1 With the second energy receiving coil L s2 The two ends of the branch formed by series connection. Based on this, the first energy transmitting coil... L p1 With the first energy receiving coil L s1 The first mutually inducted coupled coil group is formed, thus forming mutual inductance. M p1s1 Second energy transmitting coil L p2 With the second energy receiving coil L s2 Form a second mutually inducted coupled coil group to form mutual inductance. M p2s2 This will further enable wireless transmission of electrical energy and information.

[0027] In some implementations, please refer to Figure 2 First energy transmitting coil L p1 With the first energy receiving coil L s1 It is a DD-type coil, the second energy transmitting coil. L p2 With the second energy receiving coil L s2 It is a circular coil; First energy transmitting coil L p1 First energy receiving coil L s1 Second energy transmitting coil L p2 With the second energy receiving coil L s2 Coplanar arrangement, and the first energy emitting coil L p1 Located in the second energy emission coil L p2 Inside the formed ring, the first energy receiving coil L s1 Located in the second energy receiving coil L s2 Inside the formed ring.

[0028] Specifically, please refer to Figure 2 , Figure 2 The first energy transmitting coil is shown. L p1 First energy receiving coil L s1 Second energy transmitting coil L p2 With the second energy receiving coil L s2 One arrangement method. In addition to the shape, relative size and arrangement relationship of the coils mentioned above, for example, the magnetic core at the mutual inductance coupling coil can also be arranged at the energy transmitting coil and the energy receiving coil respectively, specifically attached to the energy transmitting coil and the energy receiving coil.

[0029] As further exemplarily, in the arrangement of the zeroth information transmitting sub-circuit, the first information transmission module, and the second information transmission module, the first information transmission module includes a first information transmitting sub-circuit and a first information receiving sub-circuit, wherein the first information transmitting sub-circuit includes an inductor arranged in series. L dt12 and capacitors C e1The first information transmitting sub-circuit is connected in parallel with the first energy transmitting coil. L p1 With series compensation capacitor C p1 The first information receiving sub-circuit, formed by series connection at both ends, includes a first coupling branch and a second coupling branch. The first coupling branch includes an inductor arranged in series. L dr11 and capacitors C e2 It is connected in parallel to the first energy receiving coil. L s1 With series compensation capacitor C s1 The two ends of the series connection form the second coupled branch, which includes an inductor. L dr12 ,capacitance C dr1 and resistance R dr1 ,resistance R dr1 The voltage across the terminals is U dr1 Electrical signal transmission between the first coupling branch and the second coupling branch is achieved through transformer T2, which consists of an inductor. L dr11 as well as L dr12 composition.

[0030] Similarly, the second information transmission module includes a second information transmitting sub-circuit and a second information receiving sub-circuit, wherein the second information transmitting sub-circuit includes inductors arranged in series. L dt22 and capacitors C e3 The second information transmitting sub-circuit is connected in parallel to the second energy transmitting coil. L p2 With series compensation capacitor C p2 The second information receiving sub-circuit, formed by series connection at both ends, includes a third coupling branch and a fourth coupling branch. The third coupling branch includes inductors arranged in series. L dr21 and capacitors C e4 It is connected in parallel to the second energy receiving coil. L s2 With series compensation capacitor C s2 The fourth coupled branch, which is formed by the series connection at both ends, includes an inductor. L dr22 ,capacitance C dr2 and resistanceR dr2 ,resistance R dr2 The voltage across the terminals is U dr2 The third coupling branch and the fourth coupling branch transmit electrical signals through transformer T4, which consists of an inductor. L dr21 as well as L dr22 composition.

[0031] The zeroth information transmitting sub-circuit consists of two parts: a parallel resonant branch and a series resonant branch, which are arranged in parallel. The parallel resonant branch includes the information transmitting source. U d Parallel branch resonant inductor L dp and parallel branch resonant capacitors C dp Among them, the parallel branch resonant inductor L dp Resonant capacitor in parallel branch C dp After being connected in parallel with the information transmission source U d In series, the information transmitting source U d Including information transmission sources U d1 as well as U d2 The two are superimposed using parallel transmission to form a unified information transmission source. U d Parallel branch resonant inductor L dp and parallel branch resonant capacitors C dp The following preset relationship (corresponding to the first preset relationship):

[0032] in The center angular frequency of the channel.

[0033] Furthermore, the series resonant branch includes a first coupling coil arranged in series. L dt11 Second coupling coil L dt21 and series branch resonant capacitor C ds ,in L dt11 and L dt21 There is no coupling relationship between them, where the first coupling coilL dt11 With the inductor in the first information transmitting sub-circuit L dt12 (Acting as the third coupling coil) forming transformer T1 within the first information transmission module, and the second coupling coil L dt21 With the inductor in the second information transmitting sub-circuit L dt22 (Acting as the fourth coupling coil) it forms transformer T3 within the second information transmission module, thereby establishing a coupling relationship between the zeroth information transmitting sub-circuit, the first information transmitting sub-circuit, and the second information transmitting sub-circuit. First coupling coil L dt11 Second coupling coil L dt21 and series branch resonant capacitor C ds The following preset relationship is satisfied (corresponding to the second preset relationship):

[0034] in The center angular frequency of the channel.

[0035] Please see Figure 3 The wireless signal transmission device construction method in this application is used to construct the attribute parameters of the wireless signal transmission device in the above embodiments. The method includes: Step 01: Determine the mutual inductance between the energy transmitting module and the energy receiving module based on the mutual inductance between the first energy transmitting coil and the first energy receiving coil, and the mutual inductance between the second energy transmitting coil and the second energy receiving coil; Step 02: Determine the inductance and capacitance parameters of the energy transmitting and receiving modules based on the energy carrier angular frequency and the mutual inductance between the energy transmitting module and the energy receiving module. Step 03: Determine the inductance and capacitance parameters of the zeroth information transmitting sub-circuit based on the channel center angular frequency; Step 04: Based on the channel center frequency, the inductance parameters and capacitance parameters of the zeroth information transmitting sub-circuit, determine the carrier frequency, inductance parameters and capacitance parameters of the first information transmission module and the second information transmission module, so as to realize the attribute parameters of the wireless simultaneous transmission device.

[0036] Specifically, regarding the construction process of the aforementioned wireless communication device, in addition to Figure 1 In addition to the circuit structure shown, it is also necessary to design and construct the corresponding attribute parameters of the older circuit structure. The specific construction method can be found in the following example: Based on Figure 1In constructing the circuit structure of the wireless energy transmission device, the mutual inductance between the energy transmitting module and the energy receiving module is first calculated, as shown in Formula 1: ... Formula 1 in For the mutual inductance between the energy transmitting module and the energy receiving module, The mutual inductance of the first mutually inducted coupled coil group, This refers to the mutual inductance of the second mutually inducted coupling coil group.

[0037] Next, based on the mutual inductance between the energy transmitting module and the energy receiving module, the electrical parameters of the energy transmitting module and the energy receiving module are constructed, specifically for the transmitting-side compensator sub-circuit, the receiving-side compensator sub-circuit, and the first energy transmitting coil. L p1 First energy receiving coil L s1 Second energy transmitting coil L p2 With the second energy receiving coil L s2 Perform the construction design.

[0038] Specifically, the compensation inductor in the transmitter-side compensation sub-circuit is first determined. L f1 And the compensation inductor in the receiving-side compensator circuit L f2 Specifically, as shown in Formula 2: ... Formula 2 in This is the DC power supply voltage. The energy carrier angular frequency, For load resistor R L The design current.

[0039] Next, with L f1 First energy transmitting coil L p1 Second energy transmitting coil L p2 Based on this, the series compensation capacitor of the transmitter-side compensation sub-circuit is determined. C p1 , C p2 and parallel compensation capacitors C f1 Specifically, as shown in Formula 3: ... Formula 3 in For the first energy transmitting coil L p1 With the second energy transmitting coil L p2 The equivalent inductance, Series compensation capacitor for the transmitter-side compensation sub-circuit C p1 , C p2 The equivalent capacitance.

[0040] by L f2 First energy receiving coil L s1 and the second energy receiving coil L s2 Based on this, the series compensation capacitor of the receiving-side compensation sub-circuit is determined. C s1 , C s2 and parallel compensation capacitors C f2 Specifically, as shown in Formula 4: ... Formula 4 in For the first energy receiving coil L s1 With the second energy receiving coil L s2 The equivalent inductance, Series compensation capacitor for the receiving side compensation sub-circuit C s1 , C s2 The equivalent capacitance.

[0041] Furthermore, based on Formula 3, the series compensation capacitor of the transmitter-side compensation sub-circuit can be determined. C p1 , C p2 With the first energy transmitting coil L p1 Second energy transmitting coil L p2 The relationship between them is shown in Formula 5: ... Formula 5 Based on Formula 4, determine the series compensation capacitor of the receiving-side compensation sub-circuit. C s1 , C s2 With the first energy receiving coil Ls1 Second energy receiving coil L s2 Relationship ... Formula 6 At this point, the electrical parameters of the energy transmitting module and the energy receiving module have been established.

[0042] Next, based on the channel center angular frequency, the relationship between the inductance and capacitance parameters of the zeroth information transmitting sub-circuit is determined, as shown in Equation 7: ... Formula 7 in The center angular frequency of the channel.

[0043] Based on the relationship between the channel center frequency and the inductance and capacitance parameters of the zeroth information transmitting sub-circuit, the carrier frequencies of the first and second information transmission modules can be further determined, as shown in Formula 8: ... Formula 8 in The preset channel center frequency, The carrier frequency of the first information transmission module. This is the carrier frequency of the second information transmission module.

[0044] Next, using the first energy transmitting coil L p1 First energy receiving coil L s1 Second energy transmitting coil L p2 With the second energy receiving coil L s2 Based on this, the inductance parameters of the first coupling branch in the first information transmitting sub-circuit and the first information receiving sub-circuit are determined, as shown in Formula 9: ... Formula 9 in L e1 The inductance parameters of the first information transmitting sub-circuit are as follows: L e2 The inductance parameter of the first coupling branch in the first information receiving sub-circuit is given.

[0045] Similarly, the inductance parameters of the third coupling branch in the second information transmitting sub-circuit and the second information receiving sub-circuit are determined as shown in Formula 10: … Formula 10 in Le3 The inductance parameters of the second information transmitting sub-circuit are as follows: L e4 The inductance parameters of the third coupling branch in the second information receiving sub-circuit are given. To be at carrier frequency The equivalent inductance parameters generated between points A and B by the first information transmitting sub-circuit are as follows: To be at carrier frequency The equivalent inductance parameter generated between point C and point D by the first coupling branch in the first information receiving sub-circuit.

[0046] Furthermore, based on L e1 as well as L e2 Determine the capacitance parameters of the first coupling branch in the first information transmitting sub-circuit and the first information receiving sub-circuit, that is, in the above embodiment. C e1 as well as C e2 The specific determination is shown in Formula 11: ... Formula 11 in This refers to the overall carrier angular frequency of the first information transmission module.

[0047] Similarly, based on L e3 as well as L e4 Determine the capacitance parameters of the third coupling branch in the second information transmitting sub-circuit and the second information receiving sub-circuit, i.e., in the above embodiment. C e3 as well as C e4 The specific determination is shown in Formula 11. ... Formula 12 in This refers to the overall carrier angular frequency of the second information transmission module.

[0048] Finally, with , Based on this, the capacitance parameters of the second coupling branch in the first information receiving sub-circuit are determined. C dr1 And the capacitance parameters of the fourth coupling branch in the second information receiving sub-circuit. C dr2 Specifically, as shown in Formula 13: ... Formula 13 At this point, the attribute parameters of the wireless communication device have been constructed.

[0049] For example, the attribute parameters of each component in the wireless communication device constructed based on the above method can be shown in Table 1: Table 1. Attribute Parameters of Wireless Communication Device

[0050] In addition, the information transmission rate of both the first information transmission module and the second information transmission module is designed to be 250kbps.

[0051] Therefore, by monitoring the load current of a wireless communication device with the above parameters, we can obtain the following results: Figure 4 The waveform shown indicates the load current. I L It stabilizes at around the design value of 10A, with a load resistance of [missing information]. R L Under the condition of 10Ω, the above-mentioned wireless communication device achieved a power output of 1.0kW.

[0052] During the energy transmission process, the relevant test waveforms of the first information transmission module and the second information transmission channel are as follows: Figure 5 , Figure 6 as well as Figure 7 As shown, the information transmission source U d1 The signal is transmitted to the first information transmission module, information transmitter. U d2 The signal is transmitted to the second information transmission module, information transmitter. U d This is a simple superposition of the two mentioned above. U b1 This is the baseband signal of the first information transmission module. U dr1 For resistors R dr1 Information receiving voltage at both ends U de1 According to U dr1 Similarly, the demodulated output voltage obtained by demodulation is... U b2 This is the baseband signal for the second information transmission module. U dr2 For resistors R dr2 Information receiving voltage at both ends U de2 According to U dr2The demodulated output voltage obtained by performing demodulation. According to... Figures 5-7 It can be seen that there is almost no mutual interference between the two information transmission modules, the waveform quality on the information receiving side is good and demodulation is successfully achieved. Therefore, under the above parameter design, the above wireless power transmission device can simultaneously achieve stable information transmission at a rate of 500kbps while transmitting power.

[0053] Therefore, the wireless power-to-information simultaneous transmission device in this application utilizes two sets of mutually inductively coupled coils to achieve a distributed arrangement of compensation capacitors and extraction coils. This reduces interference voltage on the information side and improves information transmission quality while transmitting wireless power. Furthermore, by setting up two information transmission modules, it utilizes the two resonant frequencies of a multi-resonant circuit to transmit information, thereby overcoming the limitation of the inherent narrow bandwidth of the power transmission channel on the information transmission rate and suppressing mutual interference between the two information streams. In addition, since the above effects fundamentally reduce the interference of power transmission on information transmission, there is no need for an additional wave trap, thus reducing the device size and avoiding additional losses.

[0054] The above description is merely a preferred embodiment of this application and is not intended to limit this application in any way. Although this application has disclosed the preferred embodiment as above, it is not intended to limit this application. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the technical solution of this application. Any simple modifications, equivalent substitutions, and improvements made to the above embodiments without departing from the technical solution of this application, based on the technical essence of this application and within the spirit and principles of this application, shall still fall within the protection scope of the technical solution of this application.

Claims

1. A wireless communication device, characterized in that, The device includes an energy transmitting module and an energy receiving module, and the energy transmitting module and the energy receiving module transmit electrical energy through two sets of mutually inductively coupled coils. The device further includes a first information transmission module and a second information transmission module. The first information transmission module and the second information transmission module share a zero information transmission sub-circuit disposed in the energy transmission side module. The first information transmission module further includes a first information transmission sub-circuit disposed in the energy transmission side module and a first information receiving sub-circuit disposed in the energy receiving side module. The second information transmission module further includes a second information transmission sub-circuit disposed in the energy transmission side module and a second information receiving sub-circuit disposed in the energy receiving side module.

2. The apparatus according to claim 1, characterized in that, The energy transmitting side module includes a DC power supply, an inverter circuit, a transmitting side compensation sub-circuit, a first energy transmitting coil, and a second energy transmitting coil; the energy receiving side module includes a load, a rectifier filter circuit, a receiving side compensation sub-circuit, a first energy receiving coil, and a second energy receiving coil. The first energy transmitting coil and the first energy receiving coil form a first mutually inductively coupled coil group, and the second energy transmitting coil and the second energy receiving coil form a second mutually inductively coupled coil group.

3. The apparatus according to claim 2, characterized in that, The first energy transmitting coil and the first energy receiving coil are DD-type coils, and the second energy transmitting coil and the second energy receiving coil are circular coils; The first energy transmitting coil, the first energy receiving coil, the second energy transmitting coil, and the second energy receiving coil are arranged on the same plane, and the first energy transmitting coil is arranged inside the ring formed by the second energy transmitting coil, and the first energy receiving coil is arranged inside the ring formed by the second energy receiving coil.

4. The apparatus according to claim 2, characterized in that, The first information transmitting sub-circuit is connected in parallel across the two ends of the first energy transmitting coil, and the second information transmitting sub-circuit is connected in parallel across the two ends of the second energy transmitting coil; The zeroth information transmitting sub-circuit and the first information transmitting sub-circuit are connected by a transformer to transmit electrical signals, and the zeroth information transmitting sub-circuit and the second information transmitting sub-circuit are connected by a transformer to transmit electrical signals. The first information receiving sub-circuit is connected in parallel across the two ends of the first energy receiving coil, and the second information receiving sub-circuit is connected in parallel across the two ends of the second energy receiving coil.

5. The apparatus according to claim 4, characterized in that, The zero information transmitting sub-circuit includes a parallel resonant branch and a series resonant branch. The series resonant branch includes a first coupling coil and a second coupling coil connected in series. The first information transmitting sub-circuit includes a third coupling coil, and the second information transmitting sub-circuit includes a fourth coupling coil. The first coupling coil and the third coupling coil form a transformer, and the second coupling coil and the fourth coupling coil form a transformer.

6. The apparatus according to claim 5, characterized in that, The parallel resonant branch includes an information transmitter and a parallel branch resonant inductor and a parallel branch resonant capacitor. The resonant inductor and the resonant capacitor are connected in parallel and then connected in series with the information transmitter. The parallel branch resonant inductor, the parallel branch resonant capacitor, and the preset channel center angular frequency satisfy a first preset relationship.

7. The apparatus according to claim 5, characterized in that, The series resonant branch further includes a series branch resonant capacitor, which is connected in series with the first coupling coil and the second coupling coil; The series branch resonant capacitor, the first coupling coil, the second coupling coil, and the preset channel center angular frequency satisfy a second preset relationship.

8. The apparatus according to claim 4, characterized in that, The first information receiving sub-circuit includes a first coupling branch and a second coupling branch. The first coupling branch is connected in parallel to both ends of the first energy receiving coil. The first coupling branch and the second coupling branch transmit electrical signals through a transformer. The second information receiving sub-circuit includes a third coupling branch and a fourth coupling branch. The third coupling branch is connected in parallel across the two ends of the second energy receiving coil. The third coupling branch and the fourth coupling branch transmit electrical signals through a transformer.

9. A method for constructing a wireless communication device, characterized in that, The method is used to construct attribute parameters for the wireless communication device as described in any one of claims 1-8, and the method includes: The mutual inductance between the energy transmitting module and the energy receiving module is determined based on the mutual inductance between the first energy transmitting coil and the first energy receiving coil, and the mutual inductance between the second energy transmitting coil and the second energy receiving coil. Based on the energy carrier angular frequency and the mutual inductance between the energy transmitting module and the energy receiving module, determine the inductance and capacitance parameters of the energy transmitting module and the energy receiving module. Based on the channel center angular frequency, determine the inductance and capacitance parameters of the zeroth information transmitting sub-circuit; Based on the channel center frequency, the inductance parameters and capacitance parameters of the zeroth information transmitting sub-circuit, the carrier frequency, inductance parameters and capacitance parameters of the first information transmission module and the second information transmission module are determined to realize the attribute parameters for constructing the wireless simultaneous transmission device.

10. An electronic device, characterized in that, The electronic device includes a memory and a processor. The memory stores a computer program, which, when executed by the processor, implements the wireless communication device construction method as described in claim 9.

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