CN111384755A - Novel separated wireless charging device - Google Patents
Novel separated wireless charging device Download PDFInfo
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- CN111384755A CN111384755A CN202010233033.6A CN202010233033A CN111384755A CN 111384755 A CN111384755 A CN 111384755A CN 202010233033 A CN202010233033 A CN 202010233033A CN 111384755 A CN111384755 A CN 111384755A
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- 238000004891 communication Methods 0.000 claims description 27
- 238000001514 detection method Methods 0.000 claims description 20
- 239000003990 capacitor Substances 0.000 claims description 8
- 238000000926 separation method Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 15
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
- H02J7/0045—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction concerning the insertion or the connection of the batteries
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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
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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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- 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
- H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a novel separated wireless charging device, which is characterized by comprising: the charger is provided with a power plug and a first interface, and a control circuit is arranged in the charger; the input end of the control circuit is connected with the power plug, and the output end of the control circuit is connected with the first interface; a connecting wire; a second interface connected with the first interface is arranged at the first end of the connecting line; a wireless charging coil, the wireless charging coil with the second end of connecting wire is connected. The invention can use the USB wire with the lowest cost to complete the judging and charging functions of wired charging and wireless charging, further reduces the manufacturing cost of the separation mode, enhances the convenience of the separation mode, and optimizes the advantages of the separation type wireless charging. In addition, the coil can also receive wireless charging, and the coil can be inserted into a receiving circuit by a wire to replace the inside of the receiving device, so that the coil can be used in two directions.
Description
Technical Field
The invention relates to the technical field of wireless charging, in particular to a novel separated wireless charging device.
Background
The wireless charging device generally includes (1) a charging or receiving power supply control circuit section, (2) a connection line section between the charging control circuit and the receiving control circuit or between the charging coil, and (3) a charging coil section. The general market products are mostly combined products which fixedly connect the parts (1) to (3).
The existing wireless charging design integrates a wireless charging circuit into a power adapter to form an integral part, so that when wireless charging is needed, a device to be charged is placed in a wireless charging area, and the wireless charging device is convenient to use.
The existing wireless charging device can only realize wireless charging, is only suitable for electronic products capable of being wirelessly charged, cannot charge the electronic products charged by adopting a connecting wire, has single function, particularly needs to be simultaneously provided with a wired charging device and a wireless charging device to meet the charging requirement and a plurality of charging devices, and is inconvenient to carry and use due to high cost.
Disclosure of Invention
The invention aims to solve the technical problem of disclosing a novel separated wireless charging device aiming at the defects in the prior art. The problem of wireless charging introduction cost and practicality is solved, use USB interface and connecting wire as the connected mode between charging circuit and charging coil moreover, also accessible when not using wireless charging integrate wired charging circuit by in the charging control circuit.
The technical scheme adopted by the invention is as follows:
new-type disconnect-type wireless charging device, its characterized in that includes:
the charger is provided with a power plug and a first interface, and a control circuit is arranged in the charger; the input end of the control circuit is connected with the power plug, and the output end of the control circuit is connected with the first interface;
a connecting wire; a second interface connected with the first interface is arranged at the first end of the connecting line;
a wireless charging coil, the wireless charging coil with the second end of connecting wire is connected.
The further technical scheme of the invention is as follows: the second end of connecting wire sets up the third interface, wireless charging coil sets up the fourth interface, the connecting wire passes through the third interface with the fourth interface with wireless charging coil is connected.
The further technical scheme of the invention is as follows: the control circuit includes: the intelligent charging system comprises a wireless charging submodule, a wired charging submodule, a charging mode judging circuit and a control output module, wherein the wireless charging submodule and the wired charging submodule are connected with the control output module, the output end of the control output module is connected with the charging mode judging circuit, and the output end of the charging module judging circuit is connected with the wireless charging submodule and the wired charging submodule.
The further technical scheme of the invention is as follows: the wireless sub-module that charges includes: the wireless charging system comprises a first power supply processing circuit, a first power supply output control circuit, a wireless charging communication circuit, a wireless charging environment detection circuit and a first central processing unit, wherein the output end of the first central processing unit is connected with the first power supply output control circuit, and the output end of the first central processing unit is connected with the first power supply processing circuit; the first power output control circuit is connected with the input end of the first central processing unit through the wireless charging communication circuit and the wireless charging environment detection circuit; the output end of the first power supply processing circuit is connected with the first power supply output control circuit and the wireless charging environment detection circuit; the output end of the first power output control circuit is connected with the wireless charging coil.
The further technical scheme of the invention is as follows: the charging submodule further comprises a capacitor, and the capacitor is connected with the wireless charging coil.
The further technical scheme of the invention is as follows: the wired charging sub-module includes: the output end of the second central processing unit is connected with the second power output control circuit, and the output end of the second central processing unit is connected with the second power processing circuit; the second power output control circuit is connected with the input end of the second central processing unit through the charging communication circuit and the wired charging environment detection circuit; the output end of the second first power supply processing circuit is connected with the second power supply output control circuit and the wired charging environment detection circuit; and the output end of the second power supply output control circuit is connected with the first interface.
The further technical scheme of the invention is as follows: the first interface, the second interface, the third interface and the fourth interface adopt USB2.0 interfaces or USB3.0 interfaces.
The further technical scheme of the invention is as follows: the first interface is a USB TYPE-A female head, and the second interface is a USB TYPE-A male head.
The further technical scheme of the invention is as follows: the first interface is a USB TYPE-C female connector, and the second interface is a USB TYPE-C male connector.
The further technical scheme of the invention is as follows: the third interface and the fourth interface are one of a USB TYPE-A or TYPE-C interface or a USB MICRO interface or a USB MINI interface.
The further technical scheme of the invention is as follows: the third interface is connected with a plurality of wireless charging coils.
The further technical scheme of the invention is as follows: the third interface is provided with a short circuit line or a low resistance.
The invention has the beneficial effects that:
the invention can use the USB wire with the lowest cost to judge and charge the wired charging and the wireless charging, thereby reducing the manufacturing cost of the separation mode, enhancing the convenience of the separation mode and optimizing the advantages of the separation type wireless charging. In addition, the coil can also receive wireless charging, and the coil can be inserted into a receiving circuit by a wire to replace the inside of the receiving device, so that the coil can be used in two directions. The wireless charging coil can be connected with a plurality of wireless charging coils, and the short circuit of an internal circuit of the interface is realized by arranging a short circuit wire or a low resistor.
Drawings
Fig. 1 is a structural diagram of a novel separated wireless charging device according to the present invention;
FIG. 2 is a block diagram of another embodiment of the present invention;
fig. 3 is a structural diagram of the control circuit according to the present invention;
fig. 4 is a diagram of the wired charging submodule according to the present invention;
fig. 5 is a diagram of the wireless charging submodule according to the present invention;
fig. 6 is a schematic diagram of a wireless charging circuit according to the present invention;
fig. 7 is a diagram illustrating the detection operation of the wireless charging circuit according to the present invention;
fig. 8 is a detection diagram of a wireless charging circuit with a capacitor according to the present invention;
fig. 9 is a flowchart of determining and charging wired and wireless charging according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "first", "second", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are usually placed when the products of the present invention are used, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or components that are referred to must have specific orientations, be constructed in specific orientations, and be operated, and thus, should not be construed as limiting the present invention.
Referring to fig. 1, a structure diagram of a novel separated wireless charging device provided by the present invention is shown;
as shown in fig. 1, the novel separated wireless charging device includes: the charger 1 is provided with a power plug 11 and a first interface 12, and the charger 1 is internally provided with a control circuit 4; the input end of the control circuit 4 is connected with the power plug 11, and the output end of the control circuit 4 is connected with the first interface 12; a connecting line 2; a second interface 21 connected with the first interface 12 is arranged at the first end of the connecting wire 2; a wireless charging coil 3, wireless charging coil 3 is connected with the second end of connecting wire 2.
According to the invention, a USB Type C special interface setting and a connecting wire are used as a connecting mode between the charging circuit and the wireless charging coil, and a wired charging circuit can be integrated in the charging control circuit when wireless charging is not used, and a wired charging function can be performed when a wired charging device is connected, so that wireless charging or wired charging can be supported in the same USB Type C charging hole. The invention can finish the functions of judging and charging wired charging and wireless charging by utilizing the low-cost USB Type C wire, reduces the manufacturing cost of the separated Type, enhances the convenience of the separated Type C wire and optimizes the advantages of the separated Type wireless charging. In addition, the coil can also receive the wireless charging, and the wireless charging is transmitted into the receiving device through the wire and then transmitted into the receiving circuit, so that the wireless charging device can be used in two directions.
In the embodiment of the present invention, a third interface 22 is disposed at a second end of a connection line 2, a fourth interface 31 is disposed on a wireless charging coil 3, and the connection line 2 is connected to the wireless charging coil 3 through the third interface 22 and the fourth interface 31. Connecting wire 2 and wireless charging coil 3 are through setting up interface connection, and the connecting wire both can regard as wired charging wire to be connected with electronic equipment and charge to it, and when the connecting wire was connected with wireless charging coil, but charge to wireless electronic equipment who charges through wireless charging coil, the use of saving wired charging wire.
Referring to fig. 2, for a structure diagram of an embodiment of the present invention, the charger includes a wired charging circuit and a wireless charging circuit; in the figure, a first interface 12 of the charger adopts a USB TYPE C standard female connector, a second interface 21 of a connecting wire 2 adopts a USB TYPE C standard male connector, and the length of the connecting wire can be freely controlled; the USB Type C connector is used for realizing the function of flexible change of product application, can be applied to charging output, and can also be used for transmitting electric energy received by a wireless charging coil into a control circuit through a connecting wire; the charging wire is combined with the control circuit device by using a wire of a USB Type C interface, the same connecting wire is combined with the coil or a wired receiving or charging device, and the wireless charging coil can also be directly combined with a charging wire; the wireless charging coil can output wireless charging signals and can also receive the wireless charging signals.
When the third interface uses a USB Type C male connector, the fourth interface is a USB Type C female connector; when the third interface uses a USB Type C male connector, the fourth interface is a USB Type C female connector; other connectors can be used for the third interface and the fourth interface, and if the third interface uses a USB MICRO male connector, the fourth interface is a USB MICRO female connector; when the third interface uses the USBMINI male connector, the fourth interface is the USB MINI female connector.
In the embodiment of the present invention, the first interface 12 of the charger may also adopt a USB TYPE a standard female connector, and the second interface 21 of the corresponding connection line 2 adopts a USB TYPE a standard male connector.
Referring to fig. 3, a structure diagram of the control circuit proposed by the present invention is shown;
in the embodiment of the present invention, the control circuit 4 includes: the wireless charging sub-module 41, the wired charging sub-module 42, the charging mode judging circuit 43 and the control output module 44, the wireless charging sub-module 41 and the wired charging sub-module 42 are connected with the control output module 44, the output end of the control output module 44 is connected with the charging mode judging circuit 43, and the output end of the charging module judging circuit 43 is connected with the wireless charging sub-module 41 and the wired charging sub-module 42.
The invention can start the automatic detection and judgment of the charging function when the charging controller is started, and can automatically judge whether the charging function is wired charging or wireless charging or receiving function when an externally-hung power receiver, such as a mobile phone and an IPAD, is accessed through a USB Type C interface, and whether the charging or receiving electric energy is determined by that a circuit in a control circuit is a receiving circuit or a charging circuit. Through setting up the wired or wireless mode of charging that the circuit is judged to USB Type C interface setting and complex judge that USBType C interface connection's equipment is wired charging or wireless charging.
The invention relates to a wireless charging technology which is commonly used for supplying power to non-used charging wires such as mobile phones, smart watches, smart bracelets and the like at present, and the non-contact charging technology is characterized in that energy is transmitted through a wireless charging coil, and a receiving end receives the energy through a receiving coil, so that the charging function of a power receiver is achieved.
Fig. 4 is a diagram of the wired charging submodule according to the present invention;
as shown in fig. 4, the wireless charging sub-module 41 includes: the wireless charging system comprises a first power supply processing circuit 411, a first power supply output control circuit 412, a wireless charging communication circuit 413, a wireless charging environment detection circuit 414 and a first central processing unit 415, wherein the output end of the first central processing unit 415 is connected with the first power supply output control circuit 412, and the output end of the first central processing unit 415 is connected with the power supply processing circuit 411; the first power output control circuit 412 is connected to the input terminal of the first cpu 415 through the wireless charging communication circuit 413 and the wireless charging environment detection circuit 414; the output end of the first power processing circuit 411 is connected to the first power output control circuit 412 and the wireless charging environment detection circuit 414; the output end of the first power output control circuit 412 is connected with the wireless charging coil 3.
Referring to fig. 5, a diagram of the wireless charging submodule proposed in the present invention is shown;
as shown in fig. 5, the wired charging sub-module 42 includes: the second power supply processing circuit 421, the second power supply output control circuit 422, the wired charging communication circuit 423, the wired charging environment detection circuit 424 and the second central processing unit 425, wherein the output end of the second central processing unit 425 is connected with the second power supply output control circuit 422, and the output end of the second central processing unit 425 is connected with the second power supply processing circuit 421; the second power output control circuit 422 is connected to the input terminal of the second cpu 421 through the wired charging communication circuit 423 and the wired charging environment detection circuit 424; the output end of the second power processing circuit 421 is connected to the second power output control circuit 422 and the wired charging environment detection circuit 424; the output terminal of the second power output control circuit 422 is connected to the first interface 12.
The wireless charging coil is connected with the control circuit device through the USBType C interface, and the interface connected with the wireless charging coil can use other interfaces or is directly and fixedly combined with the wireless charging coil.
The invention can be used as a charging product combining a separated wireless charging function and a wired charging function, namely, the wireless charging coil can be connected with a wireless charging controller through the USB interface joint, when the wireless charging coil is not used for wireless charging, the connecting wire can be separated, and the same wired charging receiver can also be connected through the interface to receive a required power supply; the wireless charging coil can be connected with the wireless charging receiving circuit through the USB interface connector, when the wireless charging receiver is not used for wireless charging, the connecting wire can be separated, and the same wired charging receiver or charging can also be connected through the interface to receive or provide power for the electronic device.
The coil is connected with the wireless charging circuit through the connecting wire, the power supply can be transmitted into the coil by the charger to be output, and the coil can also receive electric energy to be transmitted into the charger to output the electric energy.
The invention uses standard interface setting when the wired charging function is used, and takes all interfaces adopting USB Type C interface as an example: table 1 shows that the socket interface is located at the interface (24pin) where the complete control circuit device for charging and communication is connected to the connection line, and the plug interface is located at the interface (22pin) where the receiving line is connected to the electronic device.
TABLE 1
Socket-interface between the complete electronic circuit device for charging and communication and connecting line (24pin)
| A1 | A2 | A3 | A4 | A5 | A6 | A7 | A8 | A9 | A10 | A11 | A12 |
| GND | TX1+ | TX1- | VBUS | CC1 | DP | DN | SBU1 | VBUS | RX2- | RX2+ | GND |
| GND | RX1+ | RX1- | VBUS | SBU2 | DN | DP | CC2 | VBUS | TX2- | TX2+ | GND |
| B12 | B11 | B10 | B9 | B8 | B7 | B6 | B5 | B4 | B3 | B2 | B1 |
Plug interface on the receiving wire (22pin)
| A12 | A11 | A10 | A9 | A8 | A7 | A6 | A5 | A4 | A3 | A2 | A1 |
| GND | RX2+ | RX2- | VBUS | SBU1 | DP | DN | CC | VBUS | TX1- | TX1+ | GND |
| GND | TX2+ | TX2- | VBUS | VCONN | SBU1 | VBUS | RX1- | RX1+ | GND | ||
| B1 | B2 | B3 | B4 | B5 | B6 | B7 | B8 | B9 | B10 | B11 | B12 |
The socket interface at each point on the interface is set to be standard USB Type C containing communication or power supply. Table 1 shows that the socket represents the female TYPE C interface of the power adapter to the receiver, the plug refers to the male TYPE C interface on the receiver, the upper numbers a1 to a12 and B1 to B12, when the receiver is connected to the power adapter, the a1 on the socket is connected to the a1 on the plug, and the other signals are also the same, for example, the B9 on the pull socket is connected to the B9 on the plug; in another case, since the USBType C interface can be connected in the forward or reverse direction, the A1 on the drawer will be connected to the B1 on the plug, as will other signals, such as the B6 on the drawer and the A6 on the plug. GND is ground; VBUS is the main charging power supply; TX1+ and TX 1-are USB3 first set of output communication signals; TX2+ and TX 2-are USB3 second set of output communication signals; RX1+ and RX 1-are the USB3 first set of received communication signals; RX2+ and RX 2-are the USB3 second set of received communication signals; d + and D-are the initial communication settings for USB2 to receive and output communication signals and charge; SBU1 and SBU2 are audio signals; VCONN is a power signal during charging and rapid charging; CC1, CC2, and CC are fast charge request recovery signals. During charging, no effect is caused when charging terminals TX1+, TX1-, TX2+, TX2-, RX1+, RX1-, RX2+, RX2-, SBU1 and SBU2 are all idle connection signals; during charging, the D + and the D-of the receiving end firstly make initial communication setting of charging; then, the CC of the receiving end is connected to the CC1 or CC2 through the interface, the receiving end transmits the charging request, and the power supply receives the request and starts the charging service from VBUS and GND.
The invention uses standard interface setting when the wired charging function is used, and takes all interfaces adopting USB Type C interface as an example: table 2 shows that the socket interface is located at the interface (14pin) where the complete control circuit device for charging and communication is connected to the connection line, and the plug interface is located at the interface (12pin) where the receiving line is connected to the control circuit device. Only the function of charging or receiving power is removed, and the communication function of the USB3 is removed. Table 3 shows that the socket interface is located in the interface (14pin) where the complete control circuit device capable of charging and communicating is connected to the connection line, the plug interface is located in the interface (6pin) where the receiving line is connected to the control circuit device and only has the function of charging or receiving the power supply, and the communication function of the USB3 is removed.
TABLE 2
Socket-interface connecting electronic circuit device and connecting wire (14pin)
| A1 | A2 | A3 | A4 | A5 | A6 | A7 | A8 | A9 | A10 | A11 | A12 |
| GND | VBUS | CC1 | DP | DN | VBUS | GND | |||||
| GND | VBUS | DN | DP | CC2 | VBUS | GND | |||||
| B12 | B11 | B10 | B9 | B8 | B7 | B6 | B5 | B4 | B3 | B2 | B1 |
Plug-interface between receiving wire and electronic circuit device (12pin)
| A12 | A11 | A10 | A9 | A8 | A7 | A6 | A5 | A4 | A3 | A2 | A1 |
| GND | VBUS | DP | DN | CC | VBUS | GND | |||||
| GND | VBUS | VCONN | VBUS | GND | |||||||
| B1 | B2 | B3 | B4 | B5 | B6 | B7 | B8 | B9 | B10 | B11 | B12 |
TABLE 3
Socket-interface connecting electronic circuit device and connecting wire (14pin)
| A1 | A2 | A3 | A4 | A5 | A6 | A7 | A8 | A9 | A10 | A11 | A12 |
| GND | VBUS | CC1 | DP | DN | VBUS | GND | |||||
| GND | VBUS | DN | DP | CC2 | VBUS | GND | |||||
| B12 | B11 | B10 | B9 | B8 | B7 | B6 | B5 | B4 | B3 | B2 | B1 |
Plug-interface between receiving wire and electronic circuit device (6pin)
| A12 | A11 | A10 | A9 | A8 | A7 | A6 | A5 | A4 | A3 | A2 | A1 |
| GND | VBUS | DP | DN | CC | |||||||
| VCONN | |||||||||||
| B1 | B2 | B3 | B4 | B5 | B6 | B7 | B8 | B9 | B10 | B11 | B12 |
The interface setting of the invention when using the wireless charging function is shown in table 4, which is a connection interface (22pin) between the socket and the control circuit device, or 24pin such as table 5, and the plug is arranged on the connection interface between the receiving wire and the control circuit device, which is set by 2 pin.
TABLE 4
Socket-interface connecting standard connecting line and wireless charging or receiving coil (22pin)
| A1 | A2 | A3 | A4 | A5 | A6 | A7 | A8 | A9 | A10 | A11 | A12 |
| GND | TX1+ | TX1- | VBUS | CC1 | DP | DN | SBU1 | VBUS | RX2- | RX2+ | GND |
| GND | RX1+ | RX1- | VBUS | SBU2 | CC2 | VBUS | TX2- | TX2+ | GND | ||
| B12 | B11 | B10 | B9 | B8 | B7 | B6 | B5 | B4 | B3 | B2 | B1 |
Plug-interface between wireless charging or receiving coil and standard connection line (only 2pin with connection to coil)
| A12 | A11 | A10 | A9 | A8 | A7 | A6 | A5 | A4 | A3 | A2 | A1 |
| TC1 | TC2 | ||||||||||
| B1 | B2 | B3 | B4 | B5 | B6 | B7 | B8 | B9 | B10 | B11 | B12 |
TABLE 5
Socket-interface between the complete electronic circuit device for charging and communication and connecting line (24pin)
| A1 | A2 | A3 | A4 | A5 | A6 | A7 | A8 | A9 | A10 | A11 | A12 |
| GND | TX1+ | TX1- | VBUS | CC1 | DP | DN | SBU1 | VBUS | RX2- | RX2+ | GND |
| GND | RX1+ | RX1- | VBUS | SBU2 | DN | DP | CC2 | VBUS | TX2- | TX2+ | GND |
| B12 | B11 | B10 | B9 | B8 | B7 | B6 | B5 | B4 | B3 | B2 | B1 |
Plug-interface between receiving wire and electronic circuit device (only 2pin with connection to coil)
| A12 | A11 | A10 | A9 | A8 | A7 | A6 | A5 | A4 | A3 | A2 | A1 |
| TC1 | TC2 | ||||||||||
| B1 | B2 | B3 | B4 | B5 | B6 | B7 | B8 | B9 | B10 | B11 | B12 |
The connecting wire uses the female head, the wireless charging coil part uses the male head; the two ends of a common standard connecting wire are both male ends, and the connector of the wireless charging coil is combined with the connecting wire by using a female end.
In some applications, the connecting wire is fixedly connected with the coil, namely the connecting wire and the wireless charging coil are integrated, a connector between the connecting wire and the wireless charging coil is not required to be additionally arranged, and the control circuit device is connected with the connecting wire through an interface. The control circuit device end can use 24 pins or 14 pins and the like for an external interface.
The plug and jack settings for table 5 may also be modified as applied in table 6 below; table 6 shows the interface between the socket and the control circuit device, which can be 24 pins or 14 pins, and the plug is located on the interface between the receiving line and the control circuit device, which is set with 4 pins.
TABLE 6
Socket-interface between the complete electronic circuit device for charging and communication and connecting line (24pin)
| A1 | A2 | A3 | A4 | A5 | A6 | A7 | A8 | A9 | A10 | A11 | A12 |
| GND | TX1+ | TX1- | VBUS | CC1 | DP | DN | SBU1 | VBUS | RX2- | RX2+ | GND |
| GND | RX1+ | RX1- | VBUS | SBU2 | DN | DP | CC2 | VBUS | TX2- | TX2+ | GND |
| B12 | B11 | B10 | B9 | B8 | B7 | B6 | B5 | B4 | B3 | B2 | B1 |
Plug-interface between receiving wire and electronic circuit device (only 2pin or 4pin with connection to coil)
| A12 | A11 | A10 | A9 | A8 | A7 | A6 | A5 | A4 | A3 | A2 | A1 |
| TC1 | TC2 | ||||||||||
| TC2 | TC1 | ||||||||||
| B1 | B2 | B3 | B4 | B5 | B6 | B7 | B8 | B9 | B10 | B11 | B12 |
The connectors may be combined and matched with the connectors in the form of a7 and a6 as shown in fig. 5, or B6 and B7 as shown in table 6, or B6 and B7 as shown in the figure.
Referring to table 7, the interfaces for the wireless charging function of the present invention are all USB2.0 interfaces.
TABLE 7
Socket-located charging electronic circuit device
| A1 | A2 | A3 | A4 |
| GND | D+ | D- | VBUS |
Plug-in connecting wire
| B1 | B2 | B3 | B4 |
| GND | D+ | D- | VBUS |
Plug or socket-located on connecting wire for connecting charging coil
| C1 | C2 | C3 | C4 |
| GND | D+ | D- | VBUS |
Socket or plug-located charging coil and matched connecting wire
| D1 | D2 | D3 | D4 |
| Air-connecting | TC1 | TC2 | Air-connecting |
The settings for each point on the interface in table 7 include communication or power usage. The socket in fig. 1 and 2 shows the female part and the plug is male, the numbers a 1-a 4 and D1-B4 are shown, when the receiver is connected to the power adapter, the a1 on the socket is connected to the B1 on the plug, as are other signals, such as the C3 on the socket is connected to the D3 on the tap; in the common most common setting, the interfaces A1-A4 use female USB TYPE A, the interfaces B1-B4 use male USB TYPE A, the interfaces C1-C4 use male USB MICICR 0, and the interfaces D1-D4 use female USB MICR 0; in another common setting, the A1-A4 interface uses USBTYPE A female head, the B1-B4 interface uses USB TYPE A male head, the C1-C4 interface uses USB MINI male head, and the D1-D4 interface uses USB MINI female head; when the connection of the whole system is finished, the wired charging circuit stops operating and the wireless charging circuit starts to perform a wireless charging function when the judgment circuit detects that the accessed device access A1-GND and A4-VBUS are in idle connection.
Referring to fig. 6 and 7, a detection principle and an operation diagram of the wireless charging circuit according to the present invention are shown. The control circuit is connected with the wireless charging coil, wherein VBUS and GND are connected in an empty mode, so that VBUS detects that no load exists, wired charging stops operating, and wireless charging starts. The DP and DN output and input wireless charging signals, if the control circuit is set to be wireless charging output, the DP and DN output alternating current signals through the coil, and the wireless charging receiving end outside the coil is charged. If the control circuit is configured with a wireless charging receiving function, the coil induction electric energy is input into an alternating current conversion circuit in the control circuit through an electric wire, and alternating current signals input by the coil are converted into direct current signals to be supplied to a rear-section electronic product for use.
The interface setting of the invention when using the wireless charging function, the electronic circuit device end can use 24pin to 14pin, etc. for the external interface, the interface of the connecting wire can also use at least 4pin setting, as shown in the following table 8:
TABLE 8
Socket-interface connecting electronic circuit device and connecting wire (14pin)
| A1 | A2 | A3 | A4 | A5 | A6 | A7 | A8 | A9 | A10 | A11 | A12 |
| GND | VBUS | CC1 | DP | DN | VBUS | GND | |||||
| GND | VBUS | DN | DP | CC2 | VBUS | GND | |||||
| B12 | B11 | B10 | B9 | B8 | B7 | B6 | B5 | B4 | B3 | B2 | B1 |
Plug-interface between receiving line and electronic circuit device (minimum 4pin)
| A12 | A11 | A10 | A9 | A8 | A7 | A6 | A5 | A4 | A3 | A2 | A1 |
| TC1 | TC2 | SHORT | SHORT | ||||||||
| B1 | B2 | B3 | B4 | B5 | B6 | B7 | B8 | B9 | B10 | B11 | B12 |
Where TC1 and TC2 are connected to both ends of the coil circuit, SHORT is a SHORT circuit connection, or a low resistance connection. The interface design of the connecting wire and the coil used in the present invention is shown in table 9:
TABLE 9
Socket-interface connecting standard connecting line and wireless charging or receiving coil (22pin)
| A1 | A2 | A3 | A4 | A5 | A6 | A7 | A8 | A9 | A10 | A11 | A12 |
| GND | TX1+ | TX1- | VBUS | CC1 | DP | DN | SBU1 | VBUS | RX2- | RX2+ | GND |
| GND | RX1+ | RX1- | VBUS | SBU2 | CC2 | VBUS | TX2- | TX2+ | GND | ||
| B12 | B11 | B10 | B9 | B8 | B7 | B6 | B5 | B4 | B3 | B2 | B1 |
Plug-interface between wireless charging or receiving coil and standard connection line (12 pins with connection to coil)
| A12 | A11 | A10 | A9 | A8 | A7 | A6 | A5 | A4 | A3 | A2 | A1 |
| TC1 | TC2 | SHORT | SHORT | TC2 | TC1 | ||||||
| TC1 | TC2 | SHORT | SHORT | TC2 | TC1 | ||||||
| B1 | B2 | B3 | B4 | B5 | B6 | B7 | B8 | B9 | B10 | B11 | B12 |
The connecting wire uses the female head, the coil part uses the male head; the two ends of a common standard connecting wire are both male ends, and the joint of the coil is combined with the connecting wire by using a female end. In some applications, the connecting wire is fixedly connected with the coil, and the two connectors are not needed.
The present invention applies the changes as shown in table 10:
watch 10
Socket-interface between the complete electronic circuit device for charging and communication and connecting line (24pin)
| A1 | A2 | A3 | A4 | A5 | A6 | A7 | A8 | A9 | A10 | A11 | A12 |
| GND | TX1+ | TX1- | VBUS | CC1 | DP | DN | SBU1 | VBUS | RX2- | RX2+ | GND |
| GND | RX1+ | RX1- | VBUS | SBU2 | DN | DP | CC2 | VBUS | TX2- | TX2+ | GND |
| B12 | B11 | B10 | B9 | B8 | B7 | B6 | B5 | B4 | B3 | B2 | B1 |
Plug-interface between receiving wire and electronic circuit device (connectable to two sets of coils at most)
| A12 | A11 | A10 | A9 | A8 | A7 | A6 | A5 | A4 | A3 | A2 | A1 |
| TC1 | TC2 | SHORT | SHORT | TC3 | TC4 | ||||||
| TC1 | TC2 | SHORT | SHORT | TC3 | TC4 | ||||||
| B1 | B2 | B3 | B4 | B5 | B6 | B7 | B8 | B9 | B10 | B11 | B12 |
One set of coils can be connected with TC1 and TC2, the other set of coils can be connected with TC3 and TC4, and the number of the coils is controlled by a wireless charging judgment circuit. Application changes to the coil interface settings may also be made as follows:
TABLE 11
Example 1
Interface between wireless charging or receiving coil and standard connecting wire (12pin with connecting to coil)
| A12 | A11 | A10 | A9 | A8 | A7 | A6 | A5 | A4 | A3 | A2 | A1 |
| TC1 | TC2 | SHORT | SHORT | TC2 | TC1 | ||||||
| TC1 | TC2 | SHORT | SHORT | TC2 | TC1 | ||||||
| B1 | B2 | B3 | B4 | B5 | B6 | B7 | B8 | B9 | B10 | B11 | B12 |
Example 2
Interface between wireless charging or receiving coil and standard connecting wire (6pin with connecting to coil)
| A12 | A11 | A10 | A9 | A8 | A7 | A6 | A5 | A4 | A3 | A2 | A1 |
| TC1 | TC2 | SHORT | SHORT | TC2 | TC1 | ||||||
| B1 | B2 | B3 | B4 | B5 | B6 | B7 | B8 | B9 | B10 | B11 | B12 |
Example 3
Interface between wireless charging or receiving coil and standard connecting wire (with 4pin and connecting to coil)
| A12 | A11 | A10 | A9 | A8 | A7 | A6 | A5 | A4 | A3 | A2 | A1 |
| TC1 | TC2 | SHORT | SHORT | ||||||||
| B1 | B2 | B3 | B4 | B5 | B6 | B7 | B8 | B9 | B10 | B11 | B12 |
Example 4
Interface between wireless charging or receiving coil and standard connecting wire (6pin with connecting to coil)
| A12 | A11 | A10 | A9 | A8 | A7 | A6 | A5 | A4 | A3 | A2 | A1 |
| TC1 | TC2 | SHORT | SHORT | ||||||||
| TC1 | TC2 | ||||||||||
| B1 | B2 | B3 | B4 | B5 | B6 | B7 | B8 | B9 | B10 | B11 | B12 |
Example 5
Interface between wireless charging or receiving coil and standard connecting wire (6pin with connecting to coil)
| A12 | A11 | A10 | A9 | A8 | A7 | A6 | A5 | A4 | A3 | A2 | A1 |
| TC1 | TC2 | SHORT | SHORT | TC2 | TC1 | ||||||
| B1 | B2 | B3 | B4 | B5 | B6 | B7 | B8 | B9 | B10 | B11 | B12 |
Example 6
Interface between wireless charging or receiving coil and standard connecting wire (with 4pin and connecting to coil)
| A12 | A11 | A10 | A9 | A8 | A7 | A6 | A5 | A4 | A3 | A2 | A1 |
| SHORT | SHORT | TC2 | TC1 | ||||||||
| B1 | B2 | B3 | B4 | B5 | B6 | B7 | B8 | B9 | B10 | B11 | B12 |
Example 7
Interface between wireless charging or receiving coil and standard connecting wire (6pin with connecting to coil)
| A12 | A11 | A10 | A9 | A8 | A7 | A6 | A5 | A4 | A3 | A2 | A1 |
| SHORT | SHORT | TC2 | TC1 | ||||||||
| TC2 | TC1 | ||||||||||
| B1 | B2 | B3 | B4 | B5 | B6 | B7 | B8 | B9 | B10 | B11 | B12 |
Example 8
Interface between wireless charging or receiving coil and standard connecting wire (with 4pin and connecting to coil)
| A12 | A11 | A10 | A9 | A8 | A7 | A6 | A5 | A4 | A3 | A2 | Al |
| TC1 | SHORT | SHORT | TC2 | ||||||||
| B1 | B2 | B3 | B4 | B5 | B6 | B7 | B8 | B9 | B10 | B11 | B12 |
Similar permutation and combination changes can be made.
The application change using the 4pin interface setting such as USB TYPE-a is shown in table 12 and table 13: table 12 shows the wireless charging application, and table 13 shows the wired charging application.
Referring to fig. 8, a diagram is detected for a wireless charging circuit with a capacitor. The electronic circuit is connected with the wireless charging coil, wherein VBUS and GND are used as equivalent circuits of a capacitor series wireless charging or receiving coil, so that when the capacitor is fully charged, VBUS detects that no load loss exists, wired charging stops running, and wireless charging starts when DP and DN are judged to be short circuits. VBUS and GND are converted into input and output wireless charging signals, if the electronic circuit is set to be wireless charging output, the VBUS and GND output outputs alternating current signals through the coil, and the wireless charging receiving end outside the coil is charged. If the electronic circuit is equipped with a wireless charging receiving function, the coil induction electric energy is input into an alternating current conversion circuit in the electronic circuit through an electric wire, and alternating current signals input by the coil are converted into direct current signals to be supplied to a rear-section electronic product for use.
Referring to fig. 9, a flow chart of determining and charging for wired charging and wireless charging is shown. And in the initial condition, no charging wire is connected, and the wired charging control mode is entered according to the charging judgment circuit. When the charging wire is connected, the receiver is judged to enter a wired charging mode or a wireless charging mode, and according to the wireless charging specification, the wireless charging mode is entered no matter whether the environment is abnormal such as voltage, current or temperature, or the charging is saturated, and the wireless charging mode cannot be entered unless the receiver is plugged again.
According to the separated wireless charging device, the wireless charging controller and the coil are completely cut off, and the charging coil is connected with the controller through the connecting wire only when wireless charging service is needed; the wireless charging and the wired charging share one output access hole, and the interface judgment circuit switches the charging function. The wireless charging and the wired charging are integrated in the same charger. The electric equipment can also be integrated into a power extension cord, USB power supply equipment of an automobile, such as a cigarette lighter or a sound box, and can also be embedded into a work table or a wall, and only a USB Type C interface is reserved. The design can also be used for reverse charging, and a wireless charging signal is input through an interface and converted into a wired and wireless charging power receiver.
The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. New-type disconnect-type wireless charging device, its characterized in that includes:
the charger is provided with a power plug and a first interface, and a control circuit is arranged in the charger; the input end of the control circuit is connected with the power plug, and the output end of the control circuit is connected with the first interface;
a connecting wire; a second interface connected with the first interface is arranged at the first end of the connecting line;
a wireless charging coil, the wireless charging coil with the second end of connecting wire is connected.
2. The novel separated wireless charging device according to claim 1, wherein a third interface is arranged at a second end of the connecting wire, a fourth interface is arranged at the wireless charging coil, and the connecting wire is connected with the wireless charging coil through the third interface and the fourth interface.
3. The novel detachable wireless charging device of claim 1, wherein the control circuit comprises: the intelligent charging system comprises a wireless charging submodule, a wired charging submodule, a charging mode judging circuit and a control output module, wherein the wireless charging submodule and the wired charging submodule are connected with the control output module, the output end of the control output module is connected with the charging mode judging circuit, and the output end of the charging module judging circuit is connected with the wireless charging submodule and the wired charging submodule.
4. The novel detachable wireless charging device of claim 3, wherein the wireless charging sub-module comprises: the wireless charging system comprises a first power supply processing circuit, a first power supply output control circuit, a wireless charging communication circuit, a wireless charging environment detection circuit, a wireless charging coil and a first central processing unit, wherein the output end of the first central processing unit is connected with the first power supply output control circuit, and the output end of the first central processing unit is connected with the first power supply processing circuit; the first power output control circuit is connected with the input end of the first central processing unit through the wireless charging communication circuit and the wireless charging environment detection circuit; the output end of the first power supply processing circuit is connected with the first power supply output control circuit and the wireless charging environment detection circuit; the output end of the first power output control circuit is connected with the wireless charging coil.
5. The novel detachable wireless charging device of claim 4, wherein the charging sub-module further comprises a capacitor, and the capacitor is connected with the wireless charging coil.
6. The novel detachable wireless charging device of claim 3, wherein the wired charging sub-module comprises: the output end of the second central processing unit is connected with the second power output control circuit, and the output end of the second central processing unit is connected with the second power processing circuit; the second power output control circuit is connected with the input end of the second central processing unit through the charging communication circuit and the wired charging environment detection circuit; the output end of the second power supply processing circuit is connected with the second power supply output control circuit and the wired charging environment detection circuit; and the output end of the second power supply output control circuit is connected with the first interface.
7. The new split wireless charging device of claim 1, wherein the first interface is a USB TYPE-a female connector and the second interface is a USB TYPE-a male connector.
8. The new split wireless charging device of claim 1, wherein the first interface is USB TYPE-C female and the second interface is USB TYPE-C male.
9. The novel detachable wireless charging device of claim 1, wherein the third interface and the fourth interface are one of USB TYPE-a or TYPE-C interfaces or USB MICRO interfaces or USB MINI interfaces.
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| PCT/CN2021/075296 WO2021155824A1 (en) | 2020-02-04 | 2021-02-04 | Power adapter and mobile terminal charging system |
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Cited By (2)
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| CN112600285A (en) * | 2020-12-15 | 2021-04-02 | 湖南炬神电子有限公司 | Can realize trinity power that charger, portable power source, wireless charge |
| WO2022089244A1 (en) * | 2020-10-27 | 2022-05-05 | 深圳英派森科技有限公司 | Modularized wireless charging apparatus, and apparatus with wireless charging extension function |
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| CN111384755A (en) * | 2020-02-04 | 2020-07-07 | 华乙半导体(深圳)有限公司 | Novel separated wireless charging device |
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| CN212486138U (en) | 2021-02-05 |
| WO2021155824A1 (en) | 2021-08-12 |
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