CN216699626U - Wireless relay system that charges - Google Patents
Wireless relay system that charges Download PDFInfo
- Publication number
- CN216699626U CN216699626U CN202123450781.9U CN202123450781U CN216699626U CN 216699626 U CN216699626 U CN 216699626U CN 202123450781 U CN202123450781 U CN 202123450781U CN 216699626 U CN216699626 U CN 216699626U
- Authority
- CN
- China
- Prior art keywords
- coil
- resonant capacitor
- receiving coil
- transmitting coil
- voltage threshold
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model provides a wireless charging relay system, which comprises a receiving coil, a transmitting coil and a compensating circuit which are mutually connected in series; the receiving coil and the transmitting coil are both flat annular coils, the innermost turn of the receiving coil is electrically connected with the innermost turn of the transmitting coil, and the outermost turn of the receiving coil is electrically connected with the outermost turn of the transmitting coil, or the innermost turn of the receiving coil is electrically connected with the outermost turn of the transmitting coil, and the outermost turn of the receiving coil is electrically connected with the innermost turn of the transmitting coil; the compensation circuit comprises a resonant capacitor C1; a resonant capacitor C1 is connected in series between the receive coil and the transmit coil. So set up, receiving coil can turn into the electric energy with received electromagnetic energy and export for transmitting coil in real time, and transmitting coil can change the electric energy into alternating magnetic field again and can export outward, not only can increase transmission distance, can also select the electromagnetic field trend in optimizing the relay coil, effectively improves relay coil's energy transmission density simultaneously.
Description
Technical Field
The utility model relates to the technical field of wireless charging, in particular to a wireless charging relay system.
Background
Wireless charging is because of its can realize the wireless ization between the supply unit who charges and the power consumption receiving equipment for it can solve the power cord on the desktop and many and disorderly problem, has received home consumer's favor more and more. However, wireless charging systems in the market at present are based on Qi, the charging distance of the Qi wireless charging system is only 5mm-8mm, and most of thicknesses of table tops are generally between 15mm-30mm, so that the existing wireless charging products can be solved only by drilling holes under the table tops and embedding the wireless charger into the table, but the drilling holes not only damage the structure of the table and affect the appearance, but also consume manpower and man-hours. Meanwhile, the wireless charger is required to be arranged in a desk hole, so that popularization and application of the wireless charger in the aspects of office and home are greatly influenced. The traditional wireless charging relay coil is generally monolithic, and the emitted energy density is low, which results in a larger area of the receiving end, and is not favorable for the compact design direction of the electronic equipment adopting wireless charging.
SUMMERY OF THE UTILITY MODEL
Based on the above, a wireless charging relay system capable of increasing the charging distance of the wireless charger and improving the emission density of wireless charging energy is provided.
A wireless charging relay system comprises a receiving coil, a transmitting coil and a compensating circuit; the receiving coil, the transmitting coil and the compensating circuit are connected in series; the receiving coil and the transmitting coil are both flat annular coils, the innermost turn of the receiving coil is electrically connected with the innermost turn of the transmitting coil, the outermost turn of the receiving coil is electrically connected with the outermost turn of the transmitting coil, or the innermost turn of the receiving coil is electrically connected with the outermost turn of the transmitting coil, and the outermost turn of the receiving coil is electrically connected with the innermost turn of the transmitting coil; the compensation circuit comprises a resonant capacitor C1; the resonant capacitor C1 is connected in series between the receive coil and the transmit coil.
In one embodiment, the device further comprises a filter circuit; the filter circuit comprises a filter capacitor C0; the filter capacitor C0 is connected in parallel with the receiving coil and/or the transmitting coil.
In one embodiment, the device further comprises a resistor R; the resistor R is connected in series with the resonant capacitor C1.
In one embodiment, the power supply further comprises a circuit switch and a wired power supply output port; the circuit switch is connected between the receiving coil and the resonant capacitor C1 in series and used for controlling the on-off of a circuit between the receiving coil and the resonant capacitor C1; the wired power output port is connected with the circuit switch in parallel; and the wired power output port is used for externally connecting a load.
In one embodiment, the wired power output port includes a rectifying circuit; the rectifying circuit is connected in parallel with the circuit switch.
In one embodiment, the compensation circuit further comprises a resonant capacitor C2, a first voltage threshold module, and a second voltage threshold module; the first voltage threshold module, the resonant capacitor C2 and the second voltage threshold module are sequentially connected in series and then connected in parallel with the resonant capacitor C1; the first voltage threshold module and the second voltage threshold module both have unidirectional conduction performance, and are in a conduction state when the reverse side is broken down, and the input ends of the first voltage threshold module and the second voltage threshold module are respectively connected with the resonant capacitor C2, and the output ends of the first voltage threshold module and the second voltage threshold module are respectively connected with the resonant capacitor C1.
In one embodiment, the breakdown voltage of the first voltage threshold module is the same as the breakdown voltage of the second voltage threshold module.
In one embodiment, the resistor R is connected in series between the transmitting coil and the resonant capacitor C1; the breakdown voltage of the first voltage threshold module is less than the breakdown voltage of the second voltage threshold module.
In one embodiment, the resonant capacitor C2 has a different size than the resonant capacitor C1.
In one embodiment, the natural frequency of the resonant capacitor C2 is greater than the natural frequency of the resonant capacitor C1.
In one embodiment, the capacitive reactance of the resonant capacitor C2 is greater than the capacitive reactance of the resonant capacitor C1 under the same conditions.
In one embodiment, the first voltage threshold module comprises diode D1, the second voltage threshold module comprises diode E1; the anode of the diode D1 is connected with the resonant capacitor C2, and the cathode is connected with the resonant capacitor C1; the diode E1 has a positive electrode connected to the resonant capacitor C2 and a negative electrode connected to the resonant capacitor C1.
In one embodiment, the breakdown voltage of the diode D1 is the same as the breakdown voltage of the diode E1.
In one embodiment, the compensation circuit further comprises a resonant capacitor C3, a diode D2, a diode E2; the diode D2, the resonant capacitor C3 and the diode E2 are sequentially connected in series and then are connected in parallel with the resonant capacitor C1; the anode of the diode D2 is connected with the resonant capacitor C3, and the cathode is connected with the resonant capacitor C1; the diode E2 has a positive electrode connected to the resonant capacitor C3 and a negative electrode connected to the resonant capacitor C1.
In one embodiment, the compensation circuit further comprises a resonant capacitor Cn, a diode D (n-1), a diode E (n-1); the diode D (n-1), the resonant capacitor Cn and the diode E (n-1) are sequentially connected in series and then connected in parallel with the resonant capacitor C1; the anode of the diode D (n-1) is connected with the resonance capacitor Cn, and the cathode of the diode D (n-1) is connected with the resonance capacitor C1; the anode of the diode E (n-1) is connected with the resonance capacitor Cn, and the cathode of the diode E (n-1) is connected with the resonance capacitor C1; wherein n is a positive integer greater than or equal to 2.
In one embodiment, the breakdown voltages of the diode D (n-1) and the diode E (n-1) are the same.
In one embodiment, the breakdown voltage of the diode D (n-1) is equal to or greater than the breakdown voltage of the diode D (n-2); the breakdown voltage of the diode E (n-1) is equal to or larger than the breakdown voltage of the diode E (n-2).
In one embodiment, the natural frequency of the resonant capacitor Cn is greater than the natural frequency of the resonant capacitor C (n-1).
In one embodiment, the capacitive reactance of the resonant capacitor Cn is greater than the capacitive reactance of the resonant capacitor C (n-1) under the same conditions.
In one embodiment, the receiving coil and the transmitting coil are both flat annular coils, and the inner diameter of the annular ring of the receiving coil is larger than the outer diameter of the annular ring of the transmitting coil. By the arrangement, the energy density emitted by the relay system is higher, and the receiving coil of the load is smaller.
In one embodiment, the magnetic shield further comprises a first magnetic shielding sheet and a second magnetic shielding sheet; the first magnetism isolating sheet is attached to the front side of the receiving coil, and the second magnetism isolating sheet is attached to the back side of the transmitting coil; the receiving coil and the transmitting coil are arranged in the same plane, and the transmitting coil is arranged in the middle of the receiving coil. In this embodiment, "front surface" refers to a surface in the same direction as the transmission direction of the transmission coil, and "back surface" refers to a surface opposite to the transmission direction of the transmission coil.
In one embodiment, the wireless charging relay system further comprises a circuit distributor, wherein the circuit distributor is respectively connected with the output end of the diode D (n-1) and the output end of the diode E (n-1) of the circuit where the resonance capacitor Cn is located, and is used for selecting different conducting lines of the wireless charging relay system.
In the wireless charging relay system, the relay coil for wireless charging is divided into two parts, the large coil is used as the receiving coil, the small coil is used as the transmitting coil, and the compensating circuit is connected in series in the series circuit of the large coil and the small coil to generate resonance. The connection relation between the inner circle and the outer circle of the receiving coil and the transmitting coil can be selected, the electromagnetic field trend of the relay coil is optimized, and the energy transmission density of the relay coil can be effectively improved.
According to the above, the present application also provides a wireless charging repeater.
A wireless charging repeater comprises a shell, wherein the wireless charging repeater system in any one of the embodiments is arranged in the shell.
In one embodiment, the housing is flat.
In one embodiment, an adhesive layer is disposed on a bottom surface of the housing, and is used for adhering the wireless charging repeater to a desktop.
In one embodiment, the device further comprises an indicator light; the indicator light is fixedly connected with the shell and is electrically connected with the receiving coil and/or the transmitting coil.
In one embodiment, a USB interface is further provided, and the USB interface is disposed in the wired power output port.
In one embodiment, the system further comprises a relay controller; the relay controller is used for selecting the resonance capacitance Cn.
In one embodiment, the relay controller is further configured to control the indicator light to be turned on or off.
In one embodiment, the relay controller is further configured to control dimming of the indicator light.
In one embodiment, the relay controller is further configured to control a color change of the indicator light.
The wireless charging repeater can convert received electromagnetic energy into electric energy through the receiving coil and output the electric energy to the transmitting coil in real time, the transmitting coil converts the electric energy into alternating magnetic field energy again and outputs the alternating magnetic field energy outwards, the transmission distance of wireless charging is increased, and the energy emission density of wireless charging is improved.
Drawings
Fig. 1 is a schematic structural diagram of a basic principle of a wireless charging relay system according to an embodiment;
fig. 2 is a schematic structural diagram of a basic principle of a wireless charging relay system provided with a filter capacitor according to an embodiment;
fig. 3 is a schematic structural diagram of a basic principle of a wireless charging relay system provided with a wired power output port according to an embodiment;
fig. 4 is a schematic structural diagram of a basic principle of a wireless charging relay system provided with multiple resonant capacitors according to an embodiment.
Description of reference numerals: 100. a receiving coil; 200. a transmitting coil; 300. a compensation circuit; 310. a first voltage threshold module; 320. a second voltage threshold module; 400. a resistance R; 500. a filter circuit; 600. a circuit switch; 700. a wired power output port; 10. a first magnetism isolating sheet; 20. a second magnetism isolating sheet.
Detailed Description
DETAILED DESCRIPTION FIGS. 1-4, discussed below, and the various embodiments used to describe the principles or methods of the present disclosure in this patent document are by way of illustration only and should not be construed in any way to limit the scope of the disclosure. Preferred embodiments of the present disclosure will be described hereinafter with reference to the accompanying drawings. In the following description, a detailed description of well-known functions or configurations is omitted so as not to obscure the subject matter of the present disclosure with unnecessary detail. Also, terms used herein will be defined according to functions of the present invention. Thus, the terms may be different according to the intention or usage of the user or operator. Therefore, the terms used herein must be understood based on the description made herein.
A wireless charging relay system, as shown in fig. 1, includes a receiving coil 100, a transmitting coil 200 and a compensation circuit 300. The receiving coil 100, the transmitting coil 200 and the compensating circuit 300 are connected in series with each other. The receiving coil 100 and the transmitting coil 200 are both flat annular coils, and the innermost turn of the receiving coil 100 is electrically connected with the innermost turn of the transmitting coil 200, and the outermost turn of the receiving coil 100 is electrically connected with the outermost turn of the transmitting coil 200, or the innermost turn of the receiving coil 100 is electrically connected with the outermost turn of the transmitting coil 200, and the outermost turn of the receiving coil 100 is electrically connected with the innermost turn of the transmitting coil 200. The compensation circuit 300 includes a resonant capacitor C1. The resonant capacitor C1 is connected in series between the receiving coil 100 and the transmitting coil 200.
In one embodiment, as shown in fig. 2, a filter circuit 500 is further included. The filter circuit 500 includes a filter capacitor C0. The filter capacitor C0 is connected in parallel with the receive coil 100 and/or the transmit coil 200.
In one embodiment, as shown in fig. 2, a resistor R400 is further included. The resistor R400 is connected in series with the resonant capacitor C1.
In one embodiment, as shown in fig. 3, the power supply further includes a circuit switch 600 and a wired power output port 700. The circuit switch 600 is connected in series between the receiving coil 100 and the resonant capacitor C1, and is used for controlling the on/off of the circuit between the receiving coil 100 and the resonant capacitor C1. The wired power output port 700 is connected in parallel with the circuit switch 600. The wired power output port 700 is used for externally connecting a load.
In one embodiment, the wired power output port 700 includes a rectifying circuit. The rectifying circuit is connected in parallel with the circuit switch 600.
In one embodiment, as shown in fig. 4, the compensation circuit 300 further includes a resonant capacitor C2, a first voltage threshold module 310, and a second voltage threshold module 320. The first voltage threshold module 310, the resonant capacitor C2 and the second voltage threshold module 320 are connected in series and then connected in parallel with the resonant capacitor C1. The first voltage threshold module 310 and the second voltage threshold module 320 both have a unidirectional conduction performance, and are in a conduction state when the reverse side is broken down, and the input ends of the first voltage threshold module 310 and the second voltage threshold module 320 are respectively connected with the resonant capacitor C2, and the output ends are respectively connected with the resonant capacitor C1.
In one embodiment, the breakdown voltage of the first voltage threshold module 310 is the same as the breakdown voltage of the second voltage threshold module 320.
In one embodiment, as shown in fig. 4, a resistor R400 is connected in series between the transmitting coil 200 and the resonant capacitor C1. The breakdown voltage of the first voltage threshold module 310 is less than the breakdown voltage of the second voltage threshold module 320.
In one embodiment, the resonant capacitor C2 is sized differently than the resonant capacitor C1.
In one embodiment, the natural frequency of the resonant capacitor C2 is greater than the natural frequency of the resonant capacitor C1.
In one embodiment, the capacitive reactance of the resonant capacitor C2 is greater than the capacitive reactance of the resonant capacitor C1 under the same conditions.
In one embodiment, as shown in FIG. 4, the first voltage threshold module 310 includes a diode D1 and the second voltage threshold module 320 includes a diode E1. The diode D1 has an anode connected to the resonant capacitor C2 and a cathode connected to the resonant capacitor C1. The diode E1 has an anode connected to the resonant capacitor C2 and a cathode connected to the resonant capacitor C1.
In one embodiment, the breakdown voltage of diode D1 is the same as the breakdown voltage of diode E1.
In one embodiment, as shown in fig. 4, the compensation circuit 300 further includes a resonant capacitor C3, a diode D2, and a diode E2. The diode D2, the resonant capacitor C3 and the diode E2 are sequentially connected in series and then connected in parallel with the resonant capacitor C1. The diode D2 has its anode connected to the resonant capacitor C3 and its cathode connected to the resonant capacitor C1. The diode E2 has a positive electrode connected to the resonant capacitor C3 and a negative electrode connected to the resonant capacitor C1.
In one embodiment, as shown in FIG. 4, the compensation circuit 300 further includes a resonant capacitor Cn, a diode D (n-1), and a diode E (n-1). The diode D (n-1), the resonance capacitor Cn and the diode E (n-1) are sequentially connected in series and then connected with the resonance capacitor C1 in parallel. The anode of the diode D (n-1) is connected to the resonance capacitor Cn, and the cathode is connected to the resonance capacitor C1. The anode of the diode E (n-1) is connected to the resonance capacitor Cn, and the cathode is connected to the resonance capacitor C1. Wherein n is a positive integer greater than or equal to 2.
In one embodiment, the breakdown voltages of diode D (n-1) and diode E (n-1) are the same.
In one embodiment, the breakdown voltage of diode D (n-1) is the same greater than the breakdown voltage of diode D (n-2). The breakdown voltage of the diode E (n-1) is equal to or greater than the breakdown voltage of the diode E (n-2).
In one embodiment, the natural frequency of the resonant capacitor Cn is greater than the natural frequency of the resonant capacitor C (n-1).
In one embodiment, the capacitive reactance of the resonant capacitor Cn is greater than the capacitive reactance of the resonant capacitor C (n-1) under the same conditions.
In one embodiment, as shown in any of fig. 1-4, the receiving coil 100 and the transmitting coil 200 are both flat circular ring coils, and the inner diameter of the circular ring of the receiving coil 100 is larger than the outer diameter of the circular ring of the transmitting coil 200. So set up, can make the energy density that the relay system launches bigger, make the receiving coil 100 of load smaller.
In one embodiment, as shown in any one of figures 1-4, the magnetic shield further comprises a first magnetic shield 10 and a second magnetic shield 20. The first magnetic shield sheet 10 is attached to the front side of the receiving coil 100 and the second magnetic shield sheet 20 is attached to the back side of the transmitting coil 200. The receiving coil 100 and the transmitting coil 200 are disposed in the same plane, and the transmitting coil 200 is disposed in the middle of the receiving coil 100. In this embodiment, "front" refers to a surface in the same direction as the transmission direction of the transmission coil 200, and "back" refers to a surface opposite to the transmission direction of the transmission coil 200.
In one embodiment, the wireless charging relay system further comprises a circuit divider, wherein the circuit divider is respectively connected with the output end of the diode D (n-1) and the output end of the diode E (n-1) of the circuit where the resonant capacitor Cn is located, and is used for selecting different conducting lines of the wireless charging relay system.
The wireless charging relay system provided above generates resonance by dividing the relay coil for wireless charging into two, a large coil as the receiving coil 100 and a small coil as the transmitting coil 200, and connecting the compensating circuit 300 in series in the circuit thereof. The connection relation between the inner and outer turns of the receiving coil 100 and the transmitting coil 200 can be selected, the electromagnetic field trend of the relay coil is optimized, and the energy emission density of the relay coil can be effectively improved.
According to the above, the present application also provides a wireless charging repeater.
A wireless charging repeater comprises a shell, and the wireless charging repeater system in any one of the embodiments is arranged in the shell.
In one embodiment, the housing is flat.
In one embodiment, the bottom surface of the casing is provided with an adhesive layer for adhering the wireless charging repeater to a desktop.
In one embodiment, the device further comprises an indicator light. The indicator light is fixedly connected with the housing and electrically connected with the receiving coil 100 and/or the transmitting coil 200.
In one embodiment, a USB interface is also provided, and the USB interface is provided within the wired power output port 700.
In one embodiment, the system further comprises a relay controller. The relay controller is used to select the resonant capacitance Cn.
In one embodiment, the relay controller is further configured to control the indicator light to be turned on or off.
In one embodiment, the relay controller is further configured to control dimming of the indicator light.
In one embodiment, the relay controller is further configured to control a color change of the indicator light.
According to the wireless charging repeater, the received electromagnetic energy can be converted into electric energy through the receiving coil 100 and then output to the transmitting coil 200 in real time, the transmitting coil 200 converts the electric energy into alternating magnetic field energy again and outputs the alternating magnetic field energy outwards, the transmission distance of wireless charging is increased, and the energy transmission density of the wireless charging is improved.
The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A wireless charging relay system is characterized by comprising a receiving coil, a transmitting coil and a compensating circuit; the receiving coil, the transmitting coil and the compensating circuit are connected in series; the receiving coil and the transmitting coil are both flat annular coils, the innermost turn of the receiving coil is electrically connected with the innermost turn of the transmitting coil, the outermost turn of the receiving coil is electrically connected with the outermost turn of the transmitting coil, or the innermost turn of the receiving coil is electrically connected with the outermost turn of the transmitting coil, and the outermost turn of the receiving coil is electrically connected with the innermost turn of the transmitting coil; the compensation circuit comprises a resonant capacitor C1; the resonant capacitor C1 is connected in series between the receive coil and the transmit coil.
2. The wireless charging relay system of claim 1, further comprising a filter circuit; the filter circuit comprises a filter capacitor C0; the filter capacitor C0 is connected in parallel with the receiving coil and/or the transmitting coil.
3. The wireless charging relay system according to claim 1, further comprising a resistor R; the resistor R is connected in series with the resonant capacitor C1.
4. The wireless charging relay system of claim 1, further comprising a circuit switch and a wired power output port; the circuit switch is connected between the receiving coil and the resonant capacitor C1 in series and used for controlling the on-off of a circuit between the receiving coil and the resonant capacitor C1; the wired power output port is connected in parallel with the circuit switch.
5. The wireless charging relay system of any of claims 1-4, wherein the compensation circuit further comprises a resonant capacitor C2, a first voltage threshold module, and a second voltage threshold module; the first voltage threshold module, the resonant capacitor C2 and the second voltage threshold module are sequentially connected in series and then connected in parallel with the resonant capacitor C1; the first voltage threshold module and the second voltage threshold module both have unidirectional conduction performance, and are in a conduction state when the reverse side is broken down, and the input ends of the first voltage threshold module and the second voltage threshold module are respectively connected with the resonant capacitor C2, and the output ends of the first voltage threshold module and the second voltage threshold module are respectively connected with the resonant capacitor C1.
6. The wireless charging relay system of claim 5, wherein the resonant capacitor C2 is of a different gauge than the resonant capacitor C1.
7. The wireless charging relay system of claim 5, wherein a breakdown voltage of the first voltage threshold module is the same as a breakdown voltage of the second voltage threshold module.
8. The wireless charging relay system of claim 5, wherein the first voltage threshold module comprises a diode D1, the second voltage threshold module comprises a diode E1; the anode of the diode D1 is connected with the resonant capacitor C2, and the cathode is connected with the resonant capacitor C1; the diode E1 has a positive electrode connected to the resonant capacitor C2 and a negative electrode connected to the resonant capacitor C1.
9. The wireless charging relay system according to claim 1, wherein the receiving coil and the transmitting coil are both flat circular ring coils, and a circular ring inner diameter of the receiving coil is larger than a circular ring outer diameter of the transmitting coil.
10. The wireless charging relay system according to claim 9, further comprising a first magnetism isolating sheet and a second magnetism isolating sheet; the first magnetism isolating sheet is attached to the front side of the receiving coil, and the second magnetism isolating sheet is attached to the back side of the transmitting coil; the receiving coil and the transmitting coil are arranged in the same plane, and the transmitting coil is arranged in the middle of the receiving coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123450781.9U CN216699626U (en) | 2021-12-31 | 2021-12-31 | Wireless relay system that charges |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123450781.9U CN216699626U (en) | 2021-12-31 | 2021-12-31 | Wireless relay system that charges |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216699626U true CN216699626U (en) | 2022-06-07 |
Family
ID=81815964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123450781.9U Active CN216699626U (en) | 2021-12-31 | 2021-12-31 | Wireless relay system that charges |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216699626U (en) |
-
2021
- 2021-12-31 CN CN202123450781.9U patent/CN216699626U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9887030B2 (en) | Wireless power receiver, terminal and wireless power transmitter | |
| CN105024459A (en) | Wireless power reception device and electronic device including the same | |
| CN103280901A (en) | Mobile device power supply system based on wireless electricity transmission | |
| CN216699626U (en) | Wireless relay system that charges | |
| CN201349179Y (en) | Switching power supply circuit of pulping machine | |
| CN104682743A (en) | Multi-output power adapter circuit | |
| CN207542884U (en) | Wireless charging glue rifle | |
| CN201837921U (en) | Wireless power supply system of notebook computer and external mouse | |
| CN202737771U (en) | Switching power supply circuit and switching power supply | |
| CN103605435A (en) | Mouse combination without external charging requirement | |
| CN108233500A (en) | A kind of wireless charging hearing-aid device | |
| CN208142902U (en) | A kind of wireless charging hearing-aid device | |
| RU152332U1 (en) | SUPERCAPACITOR ELECTRONIC HANDLE | |
| CN216530737U (en) | Wireless relay coil assembly and repeater that charge | |
| CN102684320B (en) | A kind of wireless power supply | |
| CN211629936U (en) | Wireless power supply device system for bionic fish | |
| CN204045862U (en) | With the mobile charging wiring board of USB interface | |
| CN208422094U (en) | A kind of remote circuit device for waking up remote controler | |
| CN203301239U (en) | Control circuit of wireless charger | |
| KR20040098819A (en) | Wireless power supplier and wireless power receiver | |
| CN219678202U (en) | Wireless power supply device of magnetic resonance | |
| CN204761169U (en) | Wireless receiving module and wireless charging system | |
| CN110611374A (en) | Wireless power supply device system for bionic fish | |
| CN210924888U (en) | Multi-channel touch control transmitter | |
| CN204538993U (en) | A kind of multi-output power supply adapter circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |