CN218005976U - Wireless power transmission system combining electric field and magnetic field - Google Patents
Wireless power transmission system combining electric field and magnetic field Download PDFInfo
- Publication number
- CN218005976U CN218005976U CN202221669557.0U CN202221669557U CN218005976U CN 218005976 U CN218005976 U CN 218005976U CN 202221669557 U CN202221669557 U CN 202221669557U CN 218005976 U CN218005976 U CN 218005976U
- Authority
- CN
- China
- Prior art keywords
- wireless power
- magnetic field
- coil
- power transmission
- receiving terminal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model provides a wireless power transmission system that electric field and magnetic field combined together, include: the power, establish ties in power and symmetric distribution's transmitting terminal between the symmetric distribution's transmitting terminal non-contact is provided with the receiving terminal, the receiving terminal is established ties in resonant capacitor and load, the transmitting terminal adopts the metal sheet, and just the quantity of unilateral metal sheet sets up to at least one, the receiving terminal adopts the solenoid coil. Through the mode, the problems of large coil loss, complex control, high cost and the like caused by the fact that a plurality of transmitting coils or a single large coil are needed when a large area or one-to-many charging is carried out by the magnetic field coupling wireless power transmission technology are solved.
Description
Technical Field
The utility model belongs to the technical field of wireless power transmission and specifically relates to a wireless power transmission system that electric field and magnetic field combined together is related to.
Background
Wireless Power Transfer (WPT) is a method in which electric energy is converted into relay energy of other forms, such as electromagnetic field energy, laser, microwave, mechanical wave, etc., by a transmitter, and after transmission for a certain distance, the relay energy is converted into electric energy by a receiver, thereby realizing Wireless transmission of electric energy.
Conventional magnetic field coupled wireless power transfer systems typically have one transmit coil to one receive coil. If large-area or one-to-many charging is to be realized simultaneously, a plurality of transmitting coils are required to form an array, or a single large coil is adopted at a transmitting end, but the problems of large coil loss, complex control system, cost increase and the like of the transmitting end of the wireless power transmission system can be caused.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a wireless power transmission system that electric field and magnetic field combined together has solved magnetic field coupling wireless power transmission technique and needs a plurality of transmitting coil or single big coil when large tracts of land or a pair of many charge, causes the coil loss big, controls complicacy and problem such as with high costs.
The main contents of the utility model include: a combined electric and magnetic field wireless power transfer system, comprising: the power, establish ties in power and symmetric distribution's transmitting terminal non-contact is provided with the receiving terminal between the transmitting terminal of symmetric distribution, the receiving terminal is established ties in resonant capacitor and load, the transmitting terminal adopts the metal sheet, and the quantity of unilateral metal sheet sets up to at least one, the receiving terminal adopts the spiral pipe coil.
An inverter and a resonance compensation circuit are arranged at the power supply, so that the power supply becomes a high-frequency high-voltage alternating current power supply. The transmitting end adopts high-frequency high-voltage alternating current to drive the metal plates, so that alternating electromagnetic fields are generated between the metal plates, the receiving end adopts a spiral tube coil, the spiral tube coil is arranged in the generated electromagnetic fields, and the spiral tube coil can realize wireless power transmission through electromagnetic coupling.
The magnetic core is arranged in the helical tube coil, so that the inductance of the helical tube coil can be increased, higher induction voltage can be obtained, and more electric energy can be transmitted.
The beneficial effects of the utility model reside in that:
1. the metal plate is used as the emitting electrode, so that the coupling design of the emitting end is simpler than that of a coil, the loss is small, the cost is low, the electromagnetic field is uniformly distributed, the complexity of the control design is reduced, the metal detection is not needed, and the safety is high;
2. compared with a traditional electric field induction wireless power transmission system with two pairs of plates, the receiving end has high coupling freedom degree and has no problem of coupling misalignment by adopting the helical tube coil as a receiver;
3. the coupling of combining the metal plate and the spiral tube coil is adopted, so that the large area/large range can be realized, or a plurality of receivers can be wirelessly charged simultaneously.
Drawings
FIG. 1 is a schematic diagram of a preferred embodiment of a wireless power transmission system with a combination of electric and magnetic fields;
reference numerals: 1. the device comprises a power supply, 2-1 parts of metal plates, 2-2 parts of metal plates, 3-1 parts of helical tube coils, 3-2 parts of magnetic cores, 4 parts of resonant capacitors, 5 parts of rectifiers, 6 parts of filter capacitors, 7 parts of loads.
Detailed Description
The technical solution protected by the present invention is specifically described below with reference to the accompanying drawings.
As shown in fig. 1, a wireless power transmission system combining an electric field and a magnetic field includes: the high-frequency high-voltage alternating current power supply 1 is electrically connected to the high-frequency high-voltage alternating current power supply 1, a group of symmetrically distributed metal plates (2-1 and 2-2) are used as a transmitting end, a spiral tube coil 3-1 is adopted as a receiving end and is arranged between the symmetrically distributed group of metal plates, and the spiral tube coil 3-1 is connected in series with a resonant capacitor 4 and a load 7.
Furthermore, the receiving end can use a hollow spiral pipe coil 3-1, and a magnetic core 3-2 can be added in the spiral pipe coil 3-1 to increase the inductance of the coil, so that higher induction voltage can be obtained, and more electric energy can be transmitted.
The spiral tube coil 3-1 is connected with a rectifier 5 and a filter capacitor 6 in parallel. The rectifier 5 is used for converting alternating current from a receiving end into direct current, the filter capacitor 6 is used for filtering alternating current components, and finally electric energy received by the helical tube coil 3-1 is transmitted to the load 7.
The utility model discloses a theory of operation does:
the high-frequency high-voltage alternating current power supply 1 generated by the inverter and the resonance compensation circuit drives metal plates (2-1, 2-2), a uniform alternating electromagnetic field can be generated between the metal plates, the spiral tube coil 3-1 is placed in the alternating electromagnetic field, certain induction voltage can be generated at two ends of the spiral tube coil 3-1, resonance is generated with the resonance capacitor 4 connected in series, the resonance frequency is ensured to be consistent with the frequency of the alternating electromagnetic field generated by the metal plates, the received electric energy can be maximized, and finally, the wireless power transmission function of a load 7 is realized through the rectifier 5 and the filter capacitor 6.
The high-frequency high-voltage alternating current power supply generated by the transmitting end inverter and the resonance compensation circuit can drive only one metal plate or simultaneously drive two metal plates. The electromagnetic field generated by driving two metal plates will be much stronger than the electromagnetic field generated by one metal plate. Can be decided according to the actual application scene.
The system only needs 1-2 groups of metal plates as an emitter to replace a transmitting coil and one helical coil as a receiver to realize large-area or one-to-many wireless charging. The system not only simplifies the coupling design of the transmitting end, but also has higher charging freedom compared with the traditional magnetic field coupling, does not need metal detection, and greatly improves the charging safety.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (5)
1. A combined electric and magnetic field wireless power transfer system, comprising: the power, establish ties in power and symmetric distribution's transmitting terminal non-contact is provided with the receiving terminal between the transmitting terminal of symmetric distribution, the receiving terminal is established ties in resonant capacitor and load, the transmitting terminal adopts the metal sheet, and the quantity of unilateral metal sheet sets up to at least one, the receiving terminal adopts the spiral pipe coil.
2. A combined electric and magnetic field wireless power transfer system according to claim 1, wherein an inverter and a resonance compensation circuit are provided at the power source, so that the power source becomes a high frequency and high voltage ac power source.
3. The system of claim 1, wherein a magnetic core is disposed within the helical coil.
4. A combined electric and magnetic field wireless power transfer system according to claim 1, wherein the solenoidal coil is connected in parallel with a rectifier and a filter capacitor.
5. A combined electric and magnetic field wireless power transfer system according to claim 1, wherein the surface of the metal plate is coated with an insulating coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221669557.0U CN218005976U (en) | 2022-06-29 | 2022-06-29 | Wireless power transmission system combining electric field and magnetic field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221669557.0U CN218005976U (en) | 2022-06-29 | 2022-06-29 | Wireless power transmission system combining electric field and magnetic field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218005976U true CN218005976U (en) | 2022-12-09 |
Family
ID=84312629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221669557.0U Active CN218005976U (en) | 2022-06-29 | 2022-06-29 | Wireless power transmission system combining electric field and magnetic field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218005976U (en) |
-
2022
- 2022-06-29 CN CN202221669557.0U patent/CN218005976U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103986245B (en) | Radio energy transmission system based on double-layer double-direction spiral winding and method | |
| CN102882286B (en) | Electric field coupling-based wireless power transmission system | |
| CN1996711A (en) | Inductive coupled wireless power transfer device | |
| CN104993614A (en) | Asymmetric wireless power transmission system with relay coil inserted therein, and method | |
| CN107453490A (en) | A kind of Contactless power transmission device | |
| CN204721105U (en) | Insert the asymmetric wireless power transmission systems of repeating coil | |
| CN112653255B (en) | Wireless charging coupling mechanism and wireless charging device | |
| CN106505748A (en) | The reverse wireless power supply system of unmanned aerial vehicle onboard energy storage and method of supplying power to | |
| CN111641274A (en) | Coupling mechanism applied to wireless power transmission system of electric automobile | |
| CN104979914A (en) | Electric field coupled wireless power transmission system | |
| CN109728654A (en) | Three-winding structure wireless electric energy Transmission system | |
| CN106787240B (en) | The working method of composite LCL structure and the structure based on array lines ring type wireless energy transfer | |
| CN109995151A (en) | A kind of method for realizing that two coils decouple in wireless charging system | |
| CN218005976U (en) | Wireless power transmission system combining electric field and magnetic field | |
| Zhuo et al. | Multiple receivers wireless power transfer systems using decoupling coils to eliminate cross-coupling and achieve selective target power distribution | |
| CN210724332U (en) | Multi-load wireless charging device | |
| CN111816425A (en) | Wireless power transmission coil with asymmetric three-rectangular structure and application thereof | |
| CN202014138U (en) | Radio energy transmission device | |
| CN204761168U (en) | Electric field coupling formula wireless power transmission system | |
| CN115580034A (en) | Unmanned aerial vehicle wireless charging device based on magnetoelectric mixing | |
| CN115065173A (en) | Multi-direction wireless power transmission system | |
| CN109347215A (en) | A kind of UI type electromagnetic coil structure and biography energy method for high-power long distance radio energy-transmitting | |
| CN109361272A (en) | A kind of high efficiency wireless charging power supply and its design method | |
| CN205595907U (en) | Transformer and power strip | |
| CN114123548A (en) | Wireless charging system with three-dimensional transmitting and receiving functions |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |