Capacitance automatic voltage-sharing high-voltage pulse generator based on wireless charging technology

Abstract

The utility model provides a capacitance automatic voltage-sharing high-voltage pulse generator based on a wireless charging technology, which relates to the wireless energy transmission field, the resonance network field and the capacitance automatic voltage-sharing and high-voltage pulse power supply field and comprises a resonance type wireless energy transmitting module and a capacitance automatic voltage-sharing wireless receiving module. The resonant wireless energy transmitting module generates an alternating magnetic field, energy reaches the capacitance automatic voltage-sharing wireless receiving module from the resonant wireless energy transmitting module through the alternating magnetic field, and the resonant wireless energy transmitting module and the capacitance automatic voltage-sharing wireless receiving module are not connected and spaced. Compared with the existing high-voltage pulse power supply, the wireless energy transmission method enables the insulation and electrical isolation performance of the device to be more excellent and safer, and according to the characteristics of the circuit provided by the utility model, additional control is not needed, the equalization charging of a plurality of capacitors of which the output ends are connected in series can be automatically realized, and the service life of the device is favorably prolonged.

Description

Technical Field

[0001] The utility model relates to the fields of wireless energy transmission, resonant network, automatic capacitor voltage balancing and high-voltage pulse power supply, and specifically to a capacitor automatic voltage balancing high-voltage pulse generator based on wireless charging technology. Background Art

[0002] In the field of capacitor automatic voltage balancing and high-voltage pulse power supplies, it is very important for high-voltage pulse power supplies to be able to adjust the output voltage. Currently, for output voltage regulation, patent CN108599740A uses a large number of MOSFETs and capacitors to generate high voltage. Patent CN116669570A achieves this by controlling the secondary-side IGBT, but the output voltage can still be improved. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to propose a capacitor automatic voltage equalization high-voltage pulse generator based on wireless charging technology, including a resonant wireless energy transmission module and a capacitor automatic voltage equalization wireless receiving module;

[0004] The resonant wireless energy transmitting module is composed of MOS tube No. 1, MOS tube No. 2, MOS tube No. 3, MOS tube No. 4, a transmitting module resonant capacitor and a transmitting coil, and is equipped with a DC power supply connected to the resonant wireless energy transmitting module;

[0005] The capacitor automatic voltage-equalizing wireless receiving module has an output positive electrode and an output negative electrode. The capacitor automatic voltage-equalizing wireless receiving module is composed of multiple capacitor automatic voltage-equalizing wireless receiving submodules. The multiple capacitor automatic voltage-equalizing wireless receiving submodules are connected in series. The capacitor automatic voltage-equalizing wireless receiving submodule includes a receiving module resonant capacitor, a receiving coil, a No. 1 diode, a No. 2 diode, a No. 1 energy storage capacitor, and a No. 2 energy storage capacitor;

[0006] The resonant wireless energy transmitting module generates an alternating magnetic field, and energy is transmitted from the resonant wireless energy transmitting module to the capacitor automatic voltage equalization wireless receiving module through the alternating magnetic field. The resonant wireless energy transmitting module and the capacitor automatic voltage equalization wireless receiving module are not connected and there is a gap between them.

[0007] Optionally, the specific structure of the resonant wireless energy transmission module is:

[0008] The No. 1 MOS transistor, the No. 2 MOS transistor, the No. 3 MOS transistor, and the No. 4 MOS transistor form an H-bridge topology structure. The transmitting module resonant capacitor and the transmitting coil are connected in series and connected to the midpoints of the two bridge arms of the H-bridge topology structure.

[0009] Optionally, the specific structure of the resonant wireless energy transmission module and the specific connection structure between the resonant wireless energy transmission module and the DC power supply are:

[0010] The DC power input end is respectively connected to the drain of MOS transistor No. 1 and the drain of MOS transistor No. 2, the source of MOS transistor No. 1 is connected to the drain of MOS transistor No. 3, and the source of MOS transistor No. 2 is connected to the drain of MOS transistor No. 4. The DC power input end is also respectively connected to the source of MOS transistor No. 3 and the source of MOS transistor No. 4. The first end of the resonant capacitor of the transmitting module is connected to the wire between the source of MOS transistor No. 2 and the drain of MOS transistor No. 4. The second end of the resonant capacitor of the transmitting module is connected to the first end of the transmitting coil, and the second end of the transmitting coil is connected to the wire between the source of MOS transistor No. 1 and the drain of MOS transistor No. 3.

[0011] Optionally, the specific structure of the capacitor automatic voltage balancing wireless receiving submodule is:

[0012] The cathode of diode No. 1 is connected to the first end of energy storage capacitor No. 1, the anode of diode No. 1 is connected to the first end of the resonant capacitor of the receiving module, the second end of the resonant capacitor of the receiving module is connected to the first end of the receiving coil, the second end of energy storage capacitor No. 1 is connected to the first end of energy storage capacitor No. 2, the second end of the receiving coil is connected to the wire between the second end of energy storage capacitor No. 1 and the first end of energy storage capacitor No. 2, the second end of energy storage capacitor No. 2 is connected to the anode of diode No. 2, the cathode of diode No. 2 is connected to the wire between the anode of diode No. 1 and the first end of the resonant capacitor of the receiving module, the second end of energy storage capacitor No. 2 is connected to the anode of diode No. 2, the cathode of diode No. 1 serves as the first end of the capacitor automatic voltage equalizing wireless receiving submodule, and the anode of diode No. 2 serves as the second end of the capacitor automatic voltage equalizing wireless receiving submodule.

[0013] Optionally, the multiple capacitor automatic voltage balancing wireless receiving submodules are connected in series, specifically:

[0014] The multiple capacitor automatic voltage equalizing wireless receiving submodules are connected in sequence. According to the positions of the multiple capacitor automatic voltage equalizing wireless receiving submodules, the first end of the capacitor automatic voltage equalizing wireless receiving submodule is connected to the second end of the capacitor automatic voltage equalizing wireless receiving submodule at the previous position, and the second end of the capacitor automatic voltage equalizing wireless receiving submodule is connected to the first end of the capacitor automatic voltage equalizing wireless receiving submodule at the next position.

[0015] Optionally, among the multiple capacitor automatic voltage equalizing wireless receiving submodules connected in series, the capacitor automatic voltage equalizing wireless receiving submodule whose first end is not connected to the second end of other capacitor automatic voltage equalizing wireless receiving submodules, the first end of the capacitor automatic voltage equalizing wireless receiving submodule is the output positive pole; among the multiple capacitor automatic voltage equalizing wireless receiving submodules connected in series, the capacitor automatic voltage equalizing wireless receiving submodule whose second end is not connected to the first end of other capacitor automatic voltage equalizing wireless receiving submodules, the second end of the capacitor automatic voltage equalizing wireless receiving submodule is the output negative pole.

[0016] Optionally, the distance between the resonant wireless energy transmitting module and the capacitor automatic voltage equalization wireless receiving module can affect the output voltage. Specifically, within a preset threshold range, the greater the distance between the resonant wireless energy transmitting module and the capacitor automatic voltage equalization wireless receiving module, the higher the output voltage.

[0017] The beneficial effects of adopting the above technical solution are:

[0018] 1. This utility model proposes a capacitor automatic voltage equalization high-voltage pulse generator based on wireless charging technology. Compared with the existing high-voltage pulse power supply, the wireless energy transmission method makes the insulation and electrical isolation performance of this device more superior and safer.

[0019] 2. The capacitor automatic voltage equalization technology proposed in the present invention, according to the characteristics of the circuit proposed in the present invention, can automatically realize the balanced charging of multiple capacitors connected in series at the output end without external control, which is beneficial to improving the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic structural diagram of a capacitor automatic voltage-equalizing high-voltage pulse generator based on wireless charging technology in an embodiment of the present utility model;

[0021] In the figure, 1-resonant wireless energy transmitting module, 2-capacitor automatic voltage equalizing wireless receiving module, 3-MOS tube No. 1, 4-MOS tube No. 2, 5-MOS tube No. 3, 6-MOS tube No. 4, 7-transmitter module resonant capacitor, 8-transmitter coil, 9-DC power supply, 10-capacitor automatic voltage equalizing wireless receiving submodule, 11-receiving module resonant capacitor, 12-receiving coil, 13-diode No. 1, 14-diode No. 2, 15-energy storage capacitor No. 1, 16-energy storage capacitor No. 2, 17-output positive pole, 18-output negative pole. DETAILED DESCRIPTION

[0022] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0023] The utility model provides a capacitor automatic voltage equalization high voltage pulse generator based on wireless charging technology, combined with Figure 1 , including a resonant wireless energy transmitting module 1 and a capacitor automatic voltage equalizing wireless receiving module 2;

[0024] The resonant wireless energy transmitting module 1 is composed of a No. 1 MOS transistor 3, a No. 2 MOS transistor 4, a No. 3 MOS transistor 5, a No. 4 MOS transistor 6, a transmitting module resonant capacitor 7 and a transmitting coil 8, and is equipped with a DC power supply 9 connected to the resonant wireless energy transmitting module 1;

[0025] Among them, MOS tube No. 1 3, MOS tube No. 2 4, MOS tube No. 3 5, and MOS tube No. 4 6 can use 15N10 type MOS tubes.

[0026] The specific structure of the resonant wireless energy transmission module 1 is:

[0027] The No. 1 MOS transistor 3 , the No. 2 MOS transistor 4 , the No. 3 MOS transistor 5 , and the No. 4 MOS transistor 6 form an H-bridge topology structure. The transmitting module resonant capacitor 7 and the transmitting coil 8 are connected in series and connected to the midpoints of the two bridge arms of the H-bridge topology structure.

[0028] Specifically, the specific structure of the resonant wireless energy transmitting module 1 and the specific connection structure between the resonant wireless energy transmitting module 1 and the DC power supply 9 are as follows:

[0029] An input end of a DC power supply 9 is respectively connected to the drain of the No. 1 MOS transistor 3 and the drain of the No. 2 MOS transistor 4. The source of the No. 1 MOS transistor 3 is connected to the drain of the No. 3 MOS transistor 5, and the source of the No. 2 MOS transistor 4 is connected to the drain of the No. 4 MOS transistor 6. The input end of the DC power supply 9 is also respectively connected to the source of the No. 3 MOS transistor 5 and the source of the No. 4 MOS transistor 6. A first end of a transmitting module resonant capacitor 7 is connected to a wire between the source of the No. 2 MOS transistor 4 and the drain of the No. 4 MOS transistor 6. A second end of the transmitting module resonant capacitor 7 is connected to a first end of a transmitting coil 8. A second end of the transmitting coil 8 is connected to a wire between the source of the No. 1 MOS transistor 3 and the drain of the No. 3 MOS transistor 5.

[0030] The capacitor automatic voltage-equalizing wireless receiving module 2 has an output positive electrode and an output negative electrode. The capacitor automatic voltage-equalizing wireless receiving module 2 is composed of multiple capacitor automatic voltage-equalizing wireless receiving sub-modules 10. The multiple capacitor automatic voltage-equalizing wireless receiving sub-modules 10 are connected in series. The capacitor automatic voltage-equalizing wireless receiving sub-module 10 includes a receiving module resonant capacitor 11, a receiving coil 12, a diode No. 13, a diode No. 2 14, a No. 1 energy storage capacitor 15 and a No. 2 energy storage capacitor 16;

[0031] Among them, diode No. 1 13 and diode No. 2 14 can be made of S3MB.

[0032] The specific structure of the capacitor automatic voltage equalization wireless receiving submodule 10 is as follows:

[0033] The cathode of diode No. 13 is connected to the first end of energy storage capacitor No. 1 15, the anode of diode No. 13 is connected to the first end of the receiving module resonant capacitor 11, the second end of the receiving module resonant capacitor 11 is connected to the first end of the receiving coil 12, the second end of energy storage capacitor No. 1 15 is connected to the first end of energy storage capacitor No. 2 16, the second end of the receiving coil 12 is connected to the wire between the second end of energy storage capacitor No. 1 15 and the first end of energy storage capacitor No. 2 16, the second end of energy storage capacitor No. 2 16 is connected to the anode of diode No. 2 14, the cathode of diode No. 2 14 is connected to the wire between the anode of diode No. 1 13 and the first end of the receiving module resonant capacitor 11, the second end of energy storage capacitor No. 2 16 is connected to the anode of diode No. 2 14, the cathode of diode No. 1 13 serves as the first end of the capacitor automatic voltage equalizing wireless receiving submodule 10, and the anode of diode No. 2 14 serves as the second end of the capacitor automatic voltage equalizing wireless receiving submodule 10.

[0034] The multiple capacitor automatic voltage balancing wireless receiving submodules 10 are connected in series. Specifically:

[0035] The multiple capacitor automatic voltage equalizing wireless receiving submodules 10 are connected in sequence. According to the positions of the multiple capacitor automatic voltage equalizing wireless receiving submodules 10, the first end of the capacitor automatic voltage equalizing wireless receiving submodule 10 is connected to the second end of the capacitor automatic voltage equalizing wireless receiving submodule 10 at the previous position, and the second end of the capacitor automatic voltage equalizing wireless receiving submodule 10 is connected to the first end of the capacitor automatic voltage equalizing wireless receiving submodule 10 at the next position.

[0036] Among the multiple capacitor automatic voltage equalizing wireless receiving submodules 10 connected in series, the capacitor automatic voltage equalizing wireless receiving submodule 10 whose first end is not connected to the second end of other capacitor automatic voltage equalizing wireless receiving submodules 10, the first end of the capacitor automatic voltage equalizing wireless receiving submodule 10 is the output positive electrode 17; among the multiple capacitor automatic voltage equalizing wireless receiving submodules 10 connected in series, the capacitor automatic voltage equalizing wireless receiving submodule 10 whose second end is not connected to the first end of other capacitor automatic voltage equalizing wireless receiving submodules 10, the second end of the capacitor automatic voltage equalizing wireless receiving submodule 10 is the output negative electrode 18.

[0037] The resonant wireless energy transmitting module 1 generates an alternating magnetic field, and energy reaches the capacitor automatic voltage equalization wireless receiving module 2 from the resonant wireless energy transmitting module 1 through the alternating magnetic field. The resonant wireless energy transmitting module 1 and the capacitor automatic voltage equalization wireless receiving module 2 are not connected and there is a gap between them; the distance between the resonant wireless energy transmitting module 1 and the capacitor automatic voltage equalization wireless receiving module 2 can affect the output voltage, specifically: within the preset threshold range, the greater the distance between the resonant wireless energy transmitting module 1 and the capacitor automatic voltage equalization wireless receiving module 2, the higher the output voltage.

[0038] Energy is transmitted wirelessly; the output voltage of the present invention can be adjusted based on the distance between the two devices. Specifically, within a certain distance range, the larger the distance, the higher the output voltage. During use, if the output voltage does not reach the expected value, the output voltage can be increased by adjusting the capacitor to automatically balance the wireless receiving module away from the resonant wireless energy transmitting module 1.

[0039] The above description is merely a preferred embodiment of the present disclosure and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the utility model disclosed herein is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also encompass other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the concept of the utility model. For example, the above-mentioned features may be replaced with (but not limited to) technical features with similar functions disclosed in the embodiments of the present disclosure.

Claims

1. A capacitor automatic voltage equalization high voltage pulse generator based on wireless charging technology, characterized in that: It includes a resonant wireless energy transmitting module and a capacitor automatic voltage equalizing wireless receiving module; The resonant wireless energy transmitting module is composed of MOS tube No. 1, MOS tube No. 2, MOS tube No. 3, MOS tube No. 4, a transmitting module resonant capacitor and a transmitting coil, and is equipped with a DC power supply connected to the resonant wireless energy transmitting module; The capacitor automatic voltage-equalizing wireless receiving module has an output positive electrode and an output negative electrode. The capacitor automatic voltage-equalizing wireless receiving module is composed of multiple capacitor automatic voltage-equalizing wireless receiving submodules. The multiple capacitor automatic voltage-equalizing wireless receiving submodules are connected in series. The capacitor automatic voltage-equalizing wireless receiving submodule includes a receiving module resonant capacitor, a receiving coil, a No. 1 diode, a No. 2 diode, a No. 1 energy storage capacitor, and a No. 2 energy storage capacitor; The resonant wireless energy transmitting module generates an alternating magnetic field, and energy is transmitted from the resonant wireless energy transmitting module to the capacitor automatic voltage equalization wireless receiving module through the alternating magnetic field. The resonant wireless energy transmitting module and the capacitor automatic voltage equalization wireless receiving module are not connected and there is a gap between them.

2. The capacitor automatic voltage balancing high-voltage pulse generator based on wireless charging technology according to claim 1 is characterized in that: The specific structure of the resonant wireless energy transmission module is: The No. 1 MOS transistor, the No. 2 MOS transistor, the No. 3 MOS transistor, and the No. 4 MOS transistor form an H-bridge topology structure. The transmitting module resonant capacitor and the transmitting coil are connected in series and connected to the midpoints of the two bridge arms of the H-bridge topology structure.

3. The capacitor automatic voltage-equalizing high-voltage pulse generator based on wireless charging technology according to claim 2 is characterized in that: The specific structure of the resonant wireless energy transmission module and the specific connection structure between the resonant wireless energy transmission module and the DC power supply are as follows: The DC power input end is respectively connected to the drain of MOS transistor No. 1 and the drain of MOS transistor No. 2, the source of MOS transistor No. 1 is connected to the drain of MOS transistor No. 3, and the source of MOS transistor No. 2 is connected to the drain of MOS transistor No.

4. The DC power input end is also respectively connected to the source of MOS transistor No. 3 and the source of MOS transistor No.

4. The first end of the resonant capacitor of the transmitting module is connected to the wire between the source of MOS transistor No. 2 and the drain of MOS transistor No.

4. The second end of the resonant capacitor of the transmitting module is connected to the first end of the transmitting coil, and the second end of the transmitting coil is connected to the wire between the source of MOS transistor No. 1 and the drain of MOS transistor No.

3.

4. The capacitor automatic voltage balancing high-voltage pulse generator based on wireless charging technology according to claim 1 is characterized in that: The specific structure of the capacitor automatic voltage equalization wireless receiving submodule is as follows: The cathode of diode No. 1 is connected to the first end of energy storage capacitor No. 1, the anode of diode No. 1 is connected to the first end of the resonant capacitor of the receiving module, the second end of the resonant capacitor of the receiving module is connected to the first end of the receiving coil, the second end of energy storage capacitor No. 1 is connected to the first end of energy storage capacitor No. 2, the second end of the receiving coil is connected to the wire between the second end of energy storage capacitor No. 1 and the first end of energy storage capacitor No. 2, the second end of energy storage capacitor No. 2 is connected to the anode of diode No. 2, the cathode of diode No. 2 is connected to the wire between the anode of diode No. 1 and the first end of the resonant capacitor of the receiving module, the cathode of diode No. 1 serves as the first end of the capacitor automatic voltage equalizing wireless receiving submodule, and the anode of diode No. 2 serves as the second end of the capacitor automatic voltage equalizing wireless receiving submodule.

5. The capacitor automatic voltage balancing high-voltage pulse generator based on wireless charging technology according to claim 4 is characterized in that: The multiple capacitor automatic voltage balancing wireless receiving submodules are connected in series, specifically: The multiple capacitor automatic voltage equalizing wireless receiving submodules are connected in sequence. According to the positions of the multiple capacitor automatic voltage equalizing wireless receiving submodules, the first end of the capacitor automatic voltage equalizing wireless receiving submodule is connected to the second end of the capacitor automatic voltage equalizing wireless receiving submodule at the previous position, and the second end of the capacitor automatic voltage equalizing wireless receiving submodule is connected to the first end of the capacitor automatic voltage equalizing wireless receiving submodule at the next position.

6. The capacitor automatic voltage balancing high-voltage pulse generator based on wireless charging technology according to claim 5 is characterized in that: Among the multiple capacitor automatic voltage equalizing wireless receiving submodules connected in series, the first end of the capacitor automatic voltage equalizing wireless receiving submodule is not connected to the second end of other capacitor automatic voltage equalizing wireless receiving submodules, and the first end of the capacitor automatic voltage equalizing wireless receiving submodule is the output positive pole; among the multiple capacitor automatic voltage equalizing wireless receiving submodules connected in series, the second end of the capacitor automatic voltage equalizing wireless receiving submodule is not connected to the first end of other capacitor automatic voltage equalizing wireless receiving submodules, and the second end of the capacitor automatic voltage equalizing wireless receiving submodule is the output negative pole.

7. The capacitor automatic voltage balancing high-voltage pulse generator based on wireless charging technology according to claim 1 is characterized in that: The distance between the resonant wireless energy transmitting module and the capacitor automatic voltage equalization wireless receiving module can affect the output voltage. Specifically, within the preset threshold range, the greater the distance between the resonant wireless energy transmitting module and the capacitor automatic voltage equalization wireless receiving module, the higher the output voltage.

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