CN111342565A - Electric power wireless transmission coupling device and system - Google Patents
Electric power wireless transmission coupling device and system Download PDFInfo
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- CN111342565A CN111342565A CN202010196650.3A CN202010196650A CN111342565A CN 111342565 A CN111342565 A CN 111342565A CN 202010196650 A CN202010196650 A CN 202010196650A CN 111342565 A CN111342565 A CN 111342565A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a power wireless transmission coupling device, comprising: the transmitting tuning module, the coupling coil, the receiving tuning module and the control module are connected in sequence; the transmitting tuning module and/or the receiving tuning module comprise a plurality of compensation capacitors, a plurality of compensation inductors and a plurality of switches, and the switches correspond to the compensation capacitors and the compensation inductors one by one; the control module is respectively electrically connected with a plurality of switches of the transmitting tuning module and/or a plurality of switches of the receiving tuning module, and the switches are used for controlling the short circuit or the open circuit of the compensation capacitor and/or the compensation inductor so as to realize the conversion of the topological structures of the transmitting tuning module and/or the receiving tuning module. A wireless power transmission system is also protected. The short circuit and the open circuit of the compensation capacitor and the compensation inductor are controlled by switching on or switching off the switch, so that the conversion of the topological structure of the coupling equipment is realized, the applicability of the wireless power charging equipment to different purposes is improved, the application range is expanded, and the standardization of the wireless power charging equipment is promoted.
Description
Technical Field
The present invention relates to the field of wireless power transmission technologies, and in particular, to a wireless power transmission coupling device and system.
Background
With continuous progress of the wireless power charging technology, numerous wireless power charging devices applied to different scenes are developed, but a single device is only suitable for being applied to a specific wireless power charging scene, compatibility of different application environments is poor, and the application range of the wireless power charging device is limited.
In the wireless charging application of electric power in the market at present, common coupling equipment topological structures comprise SS, SP, PS, PP, LCC-S, S-LCC, LCC-LCC, S-LCL, LCL-S and LCL-LCL topologies, the wireless charging application of electric power is applied to different wireless charging use scenes, but the wireless charging application of electric power does not have the switching function of the topological structures, cannot adapt to the switching of various application scenes, and is poor in applicability.
Disclosure of Invention
The embodiment of the invention aims to provide a power wireless transmission device, which realizes short circuit and open circuit of a compensation capacitor and a compensation inductor in a coupling structure by closing and opening a switch so as to realize conversion of a topological structure of coupling equipment, improve the applicability of the power wireless charging equipment to different purposes, expand the application range of the power wireless charging equipment and promote the standardization of the power wireless charging equipment.
To solve the above technical problem, a first aspect of an embodiment of the present invention provides a wireless power transmission coupling device, including: the transmitting tuning module, the coupling coil, the receiving tuning module and the control module are connected in sequence;
the transmitting tuning module and the receiving tuning module are coupled through the coupling coil;
the transmitting tuning module and/or the receiving tuning module comprise a plurality of compensation capacitors, a plurality of compensation inductors and a plurality of switches, and the switches are in one-to-one correspondence with the compensation capacitors and the compensation inductors;
the control module is electrically connected with the switches of the transmitting tuning module and/or the switches of the receiving tuning module respectively, and the switches control the short circuit or the open circuit of the compensation capacitor and/or the compensation inductor so as to realize the conversion of the topological structures of the transmitting tuning module and/or the receiving tuning module.
Further, the transmission tuning module comprises a first compensation inductor, a first series compensation capacitor, a first parallel compensation capacitor, a first switch, a second switch and a third switch;
one end of the first compensation inductor is connected with the input end of a power supply, the other end of the first compensation inductor is respectively connected with the first series compensation capacitor and the first parallel compensation capacitor, the other end of the first series compensation capacitor is connected with the input end of the primary coil of the coupling coil, and the other end of the first parallel compensation capacitor is respectively connected with the output end of the power supply and the output end of the primary coil of the coupling coil;
the first compensation inductor and the first series compensation capacitor are respectively connected with the first switch and the second switch in parallel, and the first parallel compensation capacitor is connected with the third switch in series;
the first switch, the second switch and the third switch are respectively connected with the control module.
Further, parameters of the first compensation inductor, the first series compensation capacitor and/or the first parallel compensation capacitor are adjustable;
the control module is electrically connected with the first compensation inductor, the first series compensation capacitor and the first parallel compensation capacitor respectively, and is used for adjusting parameters of the first compensation inductor, the first series compensation capacitor and the first parallel compensation capacitor.
Further, the reception tuning module includes: the second series compensation capacitor, the second compensation inductor, the second parallel compensation capacitor, the fourth switch, the fifth switch and the sixth switch;
one end of the second series compensation capacitor is connected with the input end of the secondary coil of the coupling coil, the other end of the second series compensation capacitor is respectively connected with the second compensation inductor and the second parallel compensation capacitor, the other end of the second compensation inductor is connected with the anode of the load, and the other end of the second parallel compensation capacitor is respectively connected with the output end of the secondary coil of the coupling coil and the cathode of the load;
the second series compensation capacitor and the second compensation inductor are respectively connected with the fourth switch and the fifth switch in parallel, and the second parallel compensation capacitor is connected with the sixth switch in series;
the fourth switch, the fifth switch and the sixth switch are respectively connected with the control module.
Further, parameters of the second series compensation capacitor, the second compensation inductor and/or the second parallel compensation capacitor are adjustable;
the control module is respectively electrically connected with the second series compensation capacitor, the second compensation inductor and/or the second parallel compensation capacitor, and is used for adjusting parameters of the second series compensation capacitor, the second compensation inductor and/or the second parallel compensation capacitor.
Furthermore, a primary coil and/or a secondary coil of the coupling coil is/are provided with a coil switch;
the control module is electrically connected with the coil switch, and parameters of the primary coil and/or the secondary coil are adjusted through the coil switch.
Further, the primary coil and/or the secondary coil comprise a plurality of coils, and the plurality of coils are connected in series or in parallel;
the control module controls any one or more of the plurality of coils to be conducted through the coil switch.
Further, the primary coil and/or the secondary coil are a plurality of concentric circle structure coils with different diameters; the plurality of concentric circle structure coils with different diameters are connected in series or in parallel;
the control module is conducted through any one or more of the concentric circle structure coils with different diameters.
Further, the coil switch is a multi-way selection switch or comprises a plurality of coil sub-switches.
A second aspect of the embodiments of the present invention provides a wireless power transmission system, including any one of the wireless power transmission coupling apparatuses described above.
The technical scheme of the embodiment of the invention has the following beneficial technical effects:
the short circuit and the open circuit of the compensation capacitor and the compensation inductor in the coupling structure are realized by switching on or switching off the switch, so that the conversion of the topological structure of the coupling equipment is realized, the applicability of the wireless power charging equipment to different purposes is improved, the application range of the wireless power charging equipment is expanded, and the standardization of the wireless power charging equipment is promoted.
Drawings
Fig. 1 is a schematic diagram of a power wireless transmission coupling device provided by an embodiment of the invention;
FIG. 2 is a first schematic diagram of an adjustable coupling coil according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a second topology of an adjustable coupling coil according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a third adjustable coupling coil according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a fourth topology of an adjustable coupling coil according to an embodiment of the present invention;
FIG. 6 is a first schematic diagram of an adjustable circular coupling coil provided by an embodiment of the present invention;
FIG. 7 is a second schematic diagram of an adjustable circular coupling coil according to an embodiment of the present invention;
fig. 8 is a third schematic diagram of an adjustable circular coupling coil according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Fig. 1 is a schematic diagram of a power wireless transmission coupling device according to an embodiment of the present invention.
Referring to fig. 1, a first aspect of an embodiment of the present invention provides a wireless power transmission coupling apparatus, including: the transmitting tuning module, the coupling coil, the receiving tuning module and the control module are connected in sequence; the transmitting tuning module and the receiving tuning module are coupled through a coupling coil; the transmitting tuning module comprises a plurality of compensation capacitors, a plurality of compensation inductors and a plurality of switches, and the switches correspond to the compensation capacitors and the compensation inductors one by one; the transmitting tuning module comprises a plurality of compensation capacitors, a plurality of compensation inductors and a plurality of switches, and the switches correspond to the compensation capacitors and the compensation inductors one by one; the control module is respectively electrically connected with a plurality of switches of the transmitting tuning module and/or a plurality of switches of the receiving tuning module, and the switches are used for controlling the short circuit or the open circuit of the compensation capacitor and/or the compensation inductor so as to realize the conversion of the topological structures of the transmitting tuning module and/or the receiving tuning module.
According to the technical scheme, the short circuit and the open circuit of the compensation capacitor and the compensation inductor in the coupling structure are realized through the on-off of the switch, so that the conversion of the topological structure of the coupling equipment is realized, the applicability of the wireless power charging equipment to different purposes is improved, the application range of the wireless power charging equipment is expanded, and the standardization of the wireless power charging equipment is promoted.
Optionally, the transmission tuning module includes a first compensation inductor L1, a first series compensation capacitor C2, a first parallel compensation capacitor C3, a first switch S1, a second switch S2, and a third switch S3. One end of a first compensation inductor L1 is connected with the input end of the power Uac, the other end of the first compensation inductor is connected with a first series compensation capacitor C2 and a first parallel compensation capacitor C3 respectively, the other end of the first series compensation capacitor C2 is connected with the input end of a primary coil L7 of the coupling coil, and the other end of the first parallel compensation capacitor C3 is connected with the output end of the power Uac and the output end of a primary coil L7 of the coupling coil respectively. The first compensation inductor L1 and the first series compensation capacitor C2 are connected in parallel with the first switch S1 and the second switch S2, respectively, and the first parallel compensation capacitor C3 is connected in series with the third switch S3. The first switch S1, the second switch S2, and the third switch S3 are connected to the control module, respectively.
In addition, parameters of the first compensation inductor L1, the first series compensation capacitor C2 and/or the first parallel compensation capacitor C3 are adjustable. The control module is electrically connected with the first compensation inductor L1, the first series compensation capacitor C2 and the first parallel compensation capacitor C3 respectively, and adjusts parameters of the first compensation inductor L1, the first series compensation capacitor C2 and the first parallel compensation capacitor C3.
Optionally, the receiving tuning module includes: a second series compensation capacitor C4, a second compensation inductor L5, a second parallel compensation capacitor C6, a fourth switch S4, a fifth switch S5 and a sixth switch S6. One end of a second series compensation capacitor C4 is connected with the input end of the secondary coil L8 of the coupling coil, the other end of the second series compensation capacitor C4 is respectively connected with a second compensation inductor L5 and a second parallel compensation capacitor C6, the other end of the second compensation inductor L5 is connected with the anode of the load RL, and the other end of the second parallel compensation capacitor C6 is respectively connected with the output end of the secondary coil L8 of the coupling coil and the cathode of the load RL. The second series compensation capacitor C4 and the second compensation inductor L5 are connected in parallel with the fourth switch S4 and the fifth switch S5, respectively, and the second parallel compensation capacitor C6 is connected in series with the sixth switch S6. The fourth switch S4, the fifth switch S5, and the sixth switch S6 are connected to the control module, respectively.
In addition, the parameters of the second series compensation capacitor C4, the second compensation inductor L5 and/or the second parallel compensation capacitor C6 are adjustable. The control module is electrically connected with the second series compensation capacitor C4, the second compensation inductor L5 and/or the second parallel compensation capacitor C6 respectively, and adjusts parameters of the second series compensation capacitor C4, the second compensation inductor L5 and/or the second parallel compensation capacitor C6.
In order to further improve the adaptability of the wireless power transmission system to different application scenarios, a coil switch is arranged on the primary coil L7 and/or the secondary coil L8 of the coupling coil. The control module is electrically connected with the coil switch, and parameters of the primary coil L7 and/or the secondary coil L8 are adjusted through the coil switch.
Fig. 2 is a schematic topology one of an adjustable coupling coil according to an embodiment of the present invention.
Fig. 3 is a schematic diagram topology two of the adjustable coupling coil according to the embodiment of the present invention.
Fig. 4 is a schematic topology three of the adjustable coupling coil provided by the embodiment of the present invention.
Fig. 5 is a schematic topology four of the adjustable coupling coil provided by the embodiment of the present invention.
In an embodiment of this embodiment, referring to fig. 2, 3, 4 and 5, the primary winding L7 and/or the secondary winding L8 includes a plurality of windings with different parameters, and the plurality of windings are connected in series or in parallel. The control module controls any one or more of the plurality of coils to be conducted through the coil switch. Specifically, please connect a plurality of coils in series or in parallel; the coil switch is a multi-way selection switch or comprises a plurality of coil sub-switches.
As shown in fig. 2, the primary coil L7 and/or the secondary coil L8 are composed of a plurality of coils, and the incoming line ends or the outgoing line ends of the plurality of coils are selected by a plurality of selector switches, and the outgoing line ends or the incoming line ends of the plurality of coils are connected together to adjust the parameters of the coupling coil.
As shown in fig. 3 and 4, the primary coil L7 and/or the secondary coil L8 are connected in series by a plurality of coils, and the coil switch is a multi-way selection switch or comprises a plurality of coil sub-switches to select the plurality of coils connected in series and adjust parameters of the coupling coil.
As shown in fig. 5, the primary coil L7 and/or the secondary coil L8 are connected in parallel by a plurality of coils, and the coil switch includes a plurality of coil sub-switches to control each coil to be connected in or out, so as to adjust parameters of the coupling coil.
Fig. 6 is a first schematic diagram of an adjustable circular coupling coil according to an embodiment of the present invention.
Fig. 7 is a schematic diagram of a second adjustable circular coupling coil according to an embodiment of the present invention.
Fig. 8 is a third schematic diagram of an adjustable circular coupling coil according to an embodiment of the present invention.
Further, the primary coil L7 and/or the secondary coil L8 are a plurality of concentric circular structural coils having different diameters. The control module is conducted through any one or more of a plurality of concentric circle structure coils with different diameters. Specifically, a plurality of concentric circle structure coils having different diameters are connected in series or in parallel. The coil switch is a multi-way selector switch or comprises a plurality of sub-coil switches.
Alternatively, the primary coil L7 and/or the secondary coil L8 may be all coils with shapes, such as a square shape or a double D shape, as long as the technical effect of the technical solution can be achieved, and the technical effect falls into the protection scope of the present invention.
As shown in fig. 6, the primary coil L7 and/or the secondary coil L8 are formed by winding a plurality of circular coils into a plurality of concentric circles with different diameters, one ends of the plurality of circular coils are connected together, the other ends of the plurality of circular coils are connected with a multi-way selector switch, and the coils are selected through the multi-way selector switch so as to adjust parameters of the coupling coil.
As shown in fig. 7, the primary coil L7 and/or the secondary coil L8 are formed by winding a plurality of circular coils into a plurality of concentric circles having different diameters, and the coil switch includes a multi-path selection switch and a plurality of coil sub-switches. The wire outlet end of each coil is connected with one end of the switch, the other end of the multi-path selection switch is connected with the wire inlet end of the next coil, and the multi-path selection switch is connected with the coil sub-switch so as to realize the adjustment of the parameters of the coupling coil.
As shown in fig. 8, the primary coil L7 and/or the secondary coil L8 are wound from a plurality of circular coils into a plurality of concentric circles having different diameters, and the coil switch includes a plurality of coil sub-switches. The inlet ends of the coils are In short circuit and connected with the input end In, the outlet ends of the coils are respectively connected with one end of the coil sub-switch, the other end of the coil sub-switch is respectively connected with the output end Out, and the parameters of the coupling coil are adjusted by controlling the on or off of the coil sub-switch.
A second aspect of the embodiments of the present invention provides a wireless power transmission system, including any one of the wireless power transmission coupling apparatuses described above.
The embodiment of the invention aims to protect a power wireless transmission coupling device, which comprises: the transmitting tuning module, the coupling coil, the receiving tuning module and the control module are connected in sequence; the transmitting tuning module comprises a plurality of compensation capacitors, a plurality of compensation inductors and a plurality of switches, and the switches correspond to the compensation capacitors and the compensation inductors one by one; the transmitting tuning module comprises a plurality of compensation capacitors, a plurality of compensation inductors and a plurality of switches, and the switches correspond to the compensation capacitors and the compensation inductors one by one; the control module is respectively electrically connected with a plurality of switches of the transmitting tuning module and/or a plurality of switches of the receiving tuning module, and the switches are used for controlling the short circuit or the open circuit of the compensation capacitor and/or the compensation inductor so as to realize the conversion of the topological structures of the transmitting tuning module and/or the receiving tuning module. A wireless power transmission system is also protected. The technical scheme has the following effects:
the short circuit and the open circuit of the compensation capacitor and the compensation inductor in the coupling structure are realized through the closing and the opening of the switch, so that the conversion of the topological structure of the coupling equipment is realized, the applicability of the wireless power charging equipment to different purposes is improved, the application range of the wireless power charging equipment is expanded, and the standardization of the wireless power charging equipment is promoted. It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (10)
1. A power wireless transmission coupling device, comprising: the transmitting tuning module, the coupling coil, the receiving tuning module and the control module are connected in sequence;
the transmitting tuning module and the receiving tuning module are coupled through the coupling coil;
the transmitting tuning module and/or the receiving tuning module comprise a plurality of compensation capacitors, a plurality of compensation inductors and a plurality of switches, and the switches are in one-to-one correspondence with the compensation capacitors and the compensation inductors;
the control module is electrically connected with the switches of the transmitting tuning module and/or the switches of the receiving tuning module respectively, and the switches control the short circuit or the open circuit of the compensation capacitor and/or the compensation inductor so as to realize the conversion of the topological structures of the transmitting tuning module and/or the receiving tuning module.
2. The power wireless transmission coupling apparatus according to claim 1,
the transmitting tuning module comprises a first compensation inductor, a first series compensation capacitor, a first parallel compensation capacitor, a first switch, a second switch and a third switch;
one end of the first compensation inductor is connected with the input end of a power supply, the other end of the first compensation inductor is respectively connected with the first series compensation capacitor and the first parallel compensation capacitor, the other end of the first series compensation capacitor is connected with the input end of the primary coil of the coupling coil, and the other end of the first parallel compensation capacitor is respectively connected with the output end of the power supply and the output end of the primary coil of the coupling coil;
the first compensation inductor and the first series compensation capacitor are respectively connected with the first switch and the second switch in parallel, and the first parallel compensation capacitor is connected with the third switch in series;
the first switch, the second switch and the third switch are respectively connected with the control module.
3. The power wireless transmission coupling apparatus according to claim 2,
the parameters of the first compensation inductor, the first series compensation capacitor and/or the first parallel compensation capacitor are adjustable;
the control module is electrically connected with the first compensation inductor, the first series compensation capacitor and the first parallel compensation capacitor respectively, and is used for adjusting parameters of the first compensation inductor, the first series compensation capacitor and the first parallel compensation capacitor.
4. The power wireless transmission coupling apparatus according to claim 1,
the reception tuning module includes: the second series compensation capacitor, the second compensation inductor, the second parallel compensation capacitor, the fourth switch, the fifth switch and the sixth switch;
one end of the second series compensation capacitor is connected with the input end of the secondary coil of the coupling coil, the other end of the second series compensation capacitor is respectively connected with the second compensation inductor and the second parallel compensation capacitor, the other end of the second compensation inductor is connected with the anode of the load, and the other end of the second parallel compensation capacitor is respectively connected with the output end of the secondary coil of the coupling coil and the cathode of the load;
the second series compensation capacitor and the second compensation inductor are respectively connected with the fourth switch and the fifth switch in parallel, and the second parallel compensation capacitor is connected with the sixth switch in series;
the fourth switch, the fifth switch and the sixth switch are respectively connected with the control module.
5. The power wireless transmission coupling apparatus according to claim 4,
the parameters of the second series compensation capacitor, the second compensation inductor and/or the second parallel compensation capacitor are adjustable;
the control module is respectively electrically connected with the second series compensation capacitor, the second compensation inductor and/or the second parallel compensation capacitor, and is used for adjusting parameters of the second series compensation capacitor, the second compensation inductor and/or the second parallel compensation capacitor.
6. The power wireless transmission coupling apparatus according to any one of claims 1 to 5,
a primary coil and/or a secondary coil of the coupling coil is/are provided with a coil switch;
the control module is electrically connected with the coil switch, and parameters of the primary coil and/or the secondary coil are adjusted through the coil switch.
7. The power wireless transmission coupling apparatus according to claim 6,
the primary side coil and/or the secondary side coil comprise a plurality of coils, and the plurality of coils are connected in series or in parallel;
the control module controls any one or more of the plurality of coils to be conducted through the coil switch.
8. The power wireless transmission coupling apparatus according to claim 7,
the primary side coil and/or the secondary side coil are/is a plurality of concentric circle structure coils with different diameters; the plurality of concentric circle structure coils with different diameters are connected in series or in parallel;
the control module is conducted through any one or more of the concentric circle structure coils with different diameters.
9. The power wireless transmission coupling apparatus according to any one of claims 6 to 8,
the coil switch is a multi-way selection switch or comprises a plurality of coil sub-switches.
10. A wireless power transmission system comprising the wireless power transmission coupling apparatus according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010196650.3A CN111342565A (en) | 2020-03-19 | 2020-03-19 | Electric power wireless transmission coupling device and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010196650.3A CN111342565A (en) | 2020-03-19 | 2020-03-19 | Electric power wireless transmission coupling device and system |
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| CN111342565A true CN111342565A (en) | 2020-06-26 |
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| CN202010196650.3A Pending CN111342565A (en) | 2020-03-19 | 2020-03-19 | Electric power wireless transmission coupling device and system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113659736A (en) * | 2021-10-20 | 2021-11-16 | 深圳英集芯科技股份有限公司 | Wireless charger and electronic equipment |
| CN113839468A (en) * | 2021-09-17 | 2021-12-24 | 许继电源有限公司 | Wireless charging coupling coil for segmented resonance of electric automobile |
| EP4120510A4 (en) * | 2020-08-27 | 2024-04-03 | Skc Co Ltd | Wireless power reception device and wireless power transmission device |
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Application publication date: 20200626 |
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