CN209805461U - Wire circuit and wire - Google Patents
Wire circuit and wire Download PDFInfo
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- CN209805461U CN209805461U CN201920863825.4U CN201920863825U CN209805461U CN 209805461 U CN209805461 U CN 209805461U CN 201920863825 U CN201920863825 U CN 201920863825U CN 209805461 U CN209805461 U CN 209805461U
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Abstract
The utility model provides a wire rod circuit and a wire rod, wherein a Type-C interface circuit in the wire rod circuit is connected with a target device; the USB interface circuit is connected with the power transmission equipment; and the main control circuit is connected with the target equipment through the Type-C interface circuit and the USB interface circuit, acquires a charging protocol of the target equipment and a quick charging protocol of the power transmission equipment after the USB interface circuit is connected with the power transmission equipment, and determines a target charging circuit in the direct circuit and the boosted circuit based on the charging protocol and the quick charging protocol so as to realize quick charging of the target equipment through the target charging circuit. The utility model discloses an among the wire rod circuit, no matter whether target equipment's the charge agreement matches with power transmission equipment's the agreement that fills soon, can both realize filling soon to target equipment through target charging circuit, can compatible multiple charge agreement, convenient to use carries the drawback of a lot of chargers when having avoided people to go on a journey, has alleviated current charging product and has only supported a charge agreement, the not good technical problem of compatibility.
Description
Technical Field
the utility model belongs to the technical field of the technique that charges and specifically relates to a wire rod circuit and wire rod are related to.
background
Currently, charging of electronic products is generally achieved by docking a charger with the electronic products (e.g., mobile phones).
however, in such a charging method, an electronic product with one charging protocol can realize quick charging only by a charger supporting the charging protocol. Due to different fast charging protocols supported by different electronic products, people need to carry a plurality of chargers when going out, and the use is inconvenient.
in summary, in the existing charging method, the charging product only supports a fast charging protocol, which brings great trouble to the use of the consumer.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a wire rod circuit and wire rod to alleviate current charging product and only support one kind and fill the agreement soon, compatible not good technical problem.
The utility model provides a pair of wire rod circuit, include: the device comprises a main control circuit, a direct circuit, a booster circuit, a USB interface circuit and a Type-C interface circuit; the main control circuit is respectively connected with the direct circuit, the boost circuit, the Type-C interface circuit and the USB interface circuit, the direct circuit is respectively connected with the Type-C interface circuit and the USB interface circuit, and the boost circuit is respectively connected with the Type-C interface circuit and the USB interface circuit;
the Type-C interface circuit is used for connecting target equipment;
the USB interface circuit is used for connecting power transmission equipment;
the main control circuit is used for acquiring a charging protocol of the target equipment and a quick charging protocol of the power transmission equipment after the Type-C interface circuit is connected with the target equipment and the USB interface circuit is connected with the power transmission equipment, and determining a target charging circuit in the direct-current circuit and the booster circuit based on the charging protocol and the quick charging protocol so as to realize quick charging of the target equipment through the conduction of the target charging circuit.
Furthermore, the USB interface circuit is further configured to connect to a data transmission device;
The main control circuit is further used for controlling the direct circuit to be communicated with the booster circuit after the Type-C interface circuit is connected with the target equipment and the USB interface circuit is connected with the data transmission equipment, so that the data transmission equipment and the target equipment can carry out data communication.
Further, the pass circuit includes: the circuit comprises a through chip, a first capacitor, a first resistor and a second resistor;
The first end of the first capacitor is connected with the through chip, the first end of the first resistor and the first end of the second resistor respectively; the second end of the first capacitor is grounded; the second end of the first capacitor is connected with the second end of the second resistor; the second end of the first resistor is connected with the main control circuit;
The main control circuit is used for controlling the through chip to be conducted by controlling the level on the first resistor to be pulled down, so that the through circuit is conducted.
further, the booster circuit includes: the boost circuit comprises a boost chip, a third resistor, a second capacitor, a third capacitor, an inductor and a filter capacitor;
The first end of the third resistor is respectively connected with the power transmission equipment and the first end of the second capacitor; a second end of the third resistor is respectively connected with a first end of the third capacitor and a first end of the inductor;
the second end of the second capacitor is grounded; the second end of the third capacitor is grounded; the second end of the inductor is connected with a switch pin of the boost chip;
a voltage output pin of the boosting chip is connected with the first end of the filter capacitor; the communication pin of the boosting chip is connected with the main control circuit; the second end of the filter capacitor is connected with the target equipment;
The main control circuit is used for sending a boost control signal to the boost chip through the communication pin so as to control the voltage output by the power transmission equipment to be boosted to a target voltage through the boost control signal, and transmitting the target voltage to the target equipment, so that the boost circuit is turned on.
Further, the main control circuit is further configured to send a through signal to the boost chip through the communication pin when the through circuit is turned on, so as to control the boost chip to start a through function through the through signal.
further, the main control circuit is further configured to control the pass-through chip to be turned off by controlling the level on the first resistor to be pulled high when the voltage boost circuit is turned on.
Further, the number of the filter capacitors is multiple.
Further, the through chip includes: an FSA550 chip; the boost chip includes: SW6124 chip.
Further, the charging protocol built in the master control circuit includes at least one of: QC charging protocol, PD charging protocol, AFC charging protocol, FCP charging protocol, SCP charging protocol, VOOC charging protocol, SFCP charging protocol, DASH charging protocol.
The utility model also provides a wire rod, include: the wire circuit described in the above, further comprising: a charging wire;
the wire circuit is arranged in the charging wire.
In the embodiment of the utility model, the main control circuit in the wire circuit is respectively connected with the direct circuit, the booster circuit, the Type-C interface circuit and the USB interface circuit, the direct circuit is respectively connected with the Type-C interface circuit and the USB interface circuit, and the booster circuit is respectively connected with the Type-C interface circuit and the USB interface circuit; the Type-C interface circuit is used for connecting target equipment; the USB interface circuit is used for connecting power transmission equipment; and the main control circuit is used for acquiring a charging protocol of the target equipment and a quick charging protocol of the power transmission equipment after the Type-C interface circuit is connected with the target equipment and the USB interface circuit is connected with the power transmission equipment, and determining a target charging circuit in the direct circuit and the boosted circuit based on the charging protocol and the quick charging protocol so as to realize quick charging of the target equipment through the target charging circuit. Can know through foretell description the utility model discloses an among the wire rod circuit, no matter whether target equipment's the charge agreement matches with power transmission equipment's the agreement that fills soon, can both realize filling soon to target equipment through target charging circuit, can compatible multiple charge agreement, convenient to use has avoided carrying the drawback of a lot of chargers when people go on a journey, has alleviated current charging product and has only supported a charge agreement, technical problem that compatibility is not good.
drawings
in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a wire circuit according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of a through circuit provided in an embodiment of the present invention;
Fig. 3 is a schematic structural diagram of a Type-C interface circuit provided in an embodiment of the present invention;
Fig. 4 is a schematic structural diagram of a USB interface circuit according to an embodiment of the present invention;
Fig. 5 is a schematic circuit diagram of a voltage boost circuit according to an embodiment of the present invention;
Fig. 6 is a schematic circuit structure diagram of an LDO power supply circuit provided in an embodiment of the present invention;
Fig. 7 is a schematic circuit diagram of a main control circuit provided in an embodiment of the present invention.
Detailed Description
the technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In order to facilitate understanding of the present embodiment, a wire circuit disclosed in an embodiment of the present invention will be described in detail first.
The first embodiment is as follows:
fig. 1 is a schematic structural diagram of a wire circuit according to an embodiment of the present invention, as shown in fig. 1, the wire circuit includes: the device comprises a main control circuit 11, a direct circuit 12, a booster circuit 13, a USB interface circuit 14 and a Type-C interface circuit 15; the main control circuit 11 is respectively connected with the through circuit 12, the boost circuit 13, the Type-C interface circuit 15 and the USB interface circuit 14, the through circuit 12 is respectively connected with the Type-C interface circuit 15 and the USB interface circuit 14, and the boost circuit 13 is respectively connected with the Type-C interface circuit 15 and the USB interface circuit 14;
the Type-C interface circuit 15 is used for connecting target equipment;
A USB interface circuit 14 for connecting a power transmission device;
The main control circuit 11 is configured to, after the Type-C interface circuit 15 is connected to the target device and the USB interface circuit 14 is connected to the power transmission device, obtain a charging protocol of the target device and a fast charging protocol of the power transmission device, and determine a target charging circuit in the direct current circuit 12 and the voltage boost circuit 13 based on the charging protocol and the fast charging protocol, so as to implement fast charging of the target device through conduction of the target charging circuit.
the embodiment of the present invention provides an electronic product, for example, can be target device: cell-phone, panel computer, chargeable flashlight etc. still can be for other products that need charge, the embodiment of the utility model provides a do not carry out specific restriction to target equipment. The power delivery device may be a charger.
during specific implementation, when the main control circuit 11 detects that the Type-C interface circuit 15 is connected with the target device and the USB interface circuit 14 is connected with the power transmission device, the main control circuit 11 obtains a charging protocol of the target device and obtains a fast charging protocol of the power transmission device. If the charging protocol is matched with the rapid charging protocol, the through circuit 12 is controlled to be conducted, and the rapid charging of the target equipment is realized through the through circuit 12; if the charging protocol and the fast charging protocol are not matched, the direct circuit 12 is closed, so that the output of the power transmission equipment is butted to the target equipment through the booster circuit 13, even if the power transmission equipment does not support the fast charging of the charging protocol, the butt joint can be realized through the main control circuit 11, the booster circuit 13 and the target equipment, and the fast charging of the target equipment is further realized.
In the embodiment of the present invention, the main control circuit 11 in the wire circuit is respectively connected to the direct circuit 12, the voltage boost circuit 13, the Type-C interface circuit 15, and the USB interface circuit 14, the direct circuit 12 is respectively connected to the Type-C interface circuit 15 and the USB interface circuit 14, and the voltage boost circuit 13 is respectively connected to the Type-C interface circuit 15 and the USB interface circuit 14; the Type-C interface circuit 15 is used for connecting target equipment; a USB interface circuit 14 for connecting a power transmission device; the main control circuit 11 is configured to, after the Type-C interface circuit 15 is connected to the target device and the USB interface circuit 14 is connected to the power transmission device, obtain a charging protocol of the target device and a fast charging protocol of the power transmission device, and determine a target charging circuit in the direct current circuit 12 and the voltage boost circuit 13 based on the charging protocol and the fast charging protocol, so as to implement fast charging on the target device through the target charging circuit. Can know through foretell description the utility model discloses an among the wire rod circuit, no matter whether target equipment's the charge agreement matches with power transmission equipment's the agreement that fills soon, can both realize filling soon to target equipment through target charging circuit, can compatible multiple charge agreement, convenient to use has avoided carrying the drawback of a lot of chargers when people go on a journey, has alleviated current charging product and has only supported a charge agreement, technical problem that compatibility is not good.
The foregoing is a brief description of a wire circuit of the present invention, and the details thereof are described in detail below.
In an optional embodiment of the present invention, the USB interface circuit 14 is further configured to connect to a data transmission device; the main control circuit 11 is further configured to control the direct circuit 12 and the voltage boost circuit 13 to communicate after the Type-C interface circuit 15 is connected to the target device and the USB interface circuit 14 is connected to the data transmission device, so that the data transmission device and the target device perform data communication.
Specifically, when the main control circuit 11 detects that the Type-C interface circuit 15 is connected to the target device and the USB interface circuit 14 is connected to the data transmission device, the main control circuit 11 controls the pass-through circuit 12 and the boost circuit 13 to pass through (specifically, control U2 in fig. 2 and U1 in fig. 5 to pass through), so that the data transmission device and the target device can perform data communication.
next, the through circuit 12 in the present invention is described in detail, referring to fig. 2, the circuit structure of the through circuit 12 of the present invention is shown in fig. 2, and the through circuit 12 includes: the circuit comprises a through chip, a first capacitor, a first resistor and a second resistor;
the first end of the first capacitor C1 is respectively connected with the through chip, the first end of the first resistor R1 and the first end of the second resistor R2; the second end of the first capacitor C1 is grounded; the second end of the first capacitor C1 is connected with the second end of the second resistor R2; the second end of the first resistor R1 is connected with the main control circuit 11;
The main control circuit 11 is configured to control the through chip to be turned on by controlling the level of the first resistor R1 to be pulled low, so as to implement the turn-on of the through circuit 12U 1.
In addition, the main control circuit 11 is further configured to send a through signal to the boost chip through the communication pin when the through circuit 12 is turned on, so as to control the boost chip to start a through function through the through signal.
the operation of the circuit in this case is described below:
After the Type-C interface circuit 15 (refer to fig. 3) is inserted into the female socket of the port C of the target device, and the USB interface circuit 14 (refer to fig. 4) is connected to the power transmission device (such as a charger), the main control circuit 11 obtains the charging protocol of the target device and the fast charging protocol of the power transmission device, if the charging protocol is matched with the fast charging protocol, the main control circuit 11 controls the level of the first resistor R1 to be lowered (when the power is just powered on, the level of the first resistor R1 is high) to control the direct chip to be turned on, so as to achieve the direct circuit 12 to be turned on, and further enable the power transmission device and the target device to directly perform protocol communication, and at the same time, the main control circuit 11 sends a direct signal to the boost chip (such as the SW6124 in fig. 5) through the communication pins (SDA pin, SCK pin, IRQ pin) to control the boost chip to turn on the direct function through, and performing quick charging on the target equipment through the direct connection.
The second resistor R2 is a default pull-down resistor, which prevents external static electricity or interference from coming from the first resistor R1 when the terminal R1 is not powered.
the above description describes the process of the power transmission device performing fast charging on the target device when the charging protocol and the fast charging protocol are matched, and the detailed description will be given below of the process of performing fast charging on the target device when the charging protocol and the fast charging protocol are not matched.
In an optional embodiment of the present invention, referring to fig. 5, the voltage boost circuit 13 includes: the boost circuit comprises a boost chip, a third resistor R3, a second capacitor C2, a third capacitor C3, an inductor L1 and a filter capacitor;
A first end of the third resistor R3 is respectively connected with the power transmission equipment and a first end of the second capacitor C2; a second end of the third resistor R3 is connected to a first end of the third capacitor C3 and a first end of the inductor L1, respectively;
the second end of the second capacitor C2 is grounded; the second end of the third capacitor C3 is grounded; the second end of the inductor L1 is connected with a switch pin of the boost chip;
a voltage output pin of the boosting chip is connected with a first end of the filter capacitor; the communication pin of the boost chip is connected with the main control circuit 11; the second end of the filter capacitor is connected with the target equipment;
The main control circuit 11 is configured to send a boost control signal to the boost chip through the communication pin, so as to control the voltage output by the power transmission device to be boosted to a target voltage through the boost control signal, and transmit the target voltage to the target device, thereby implementing conduction of the boost circuit 13.
In addition, the main control circuit 11 is further configured to control the through chip to turn off by controlling the level pull-up of the first resistor when the voltage boost circuit 13 is turned on.
The operation of the circuit in this case is described below:
On the Type-C interface circuit 15 (refer to fig. 3) inserted into the C-port female socket of the target device, and the USB interface circuit 14 (refer to fig. 4) accesses the power transmission device (such as the charger), the main control circuit 11 obtains the charging protocol of the target device and the fast charging protocol of the power transmission device, if the charging protocol and the fast charging protocol do not match, the main control circuit 11 controls the pass-through chip to be turned off by controlling the level on the first resistor to be pulled high, and sends a boosting control signal to the boosting chip through communication pins (including an IRQ pin, an SDA pin and an SCK pin), so that the voltage output by the power transmission equipment is boosted through R3, C2, C3, L1 and a MOS built in the boosting chip, and then, performing filtering processing through a filter capacitor to obtain a target voltage (specifically, a voltage required by the target device), and performing rapid charging on the target device in cooperation with a protocol of the main control circuit 11.
additionally, in an optional embodiment of the present invention, the wire circuit further comprises: the circuit structure of the LDO power supply circuit is shown in FIG. 6;
the LDO power supply circuit is connected to the USB interface circuit 14, and is configured to extract electric energy from the power transmission device or the data transmission device, and convert the extracted electric energy into a voltage required by the main control circuit 11, so as to supply power to the main control circuit 11.
specifically, the main control circuit 11 may be an MCU, and the circuit structure of the main control circuit 11 is shown in fig. 7.
in an alternative embodiment of the present invention, referring to fig. 5, the number of the filter capacitors is plural.
in an optional embodiment of the present invention, the direct chip includes: an FSA550 chip; the boost chip includes: SW6124 chip.
In an optional embodiment of the present invention, the charging protocol built in the main control circuit 11 includes at least one of the following: QC charging protocol, PD charging protocol, AFC charging protocol, FCP charging protocol, SCP charging protocol, VOOC charging protocol, SFCP charging protocol, DASH charging protocol.
Specifically, the main control circuit 11 implements protocol identification and docking between the power transmission device and the target device, determination and docking between the target device and the data transmission device, control of the pass-through chip and the pass-through circuit 12, communication and control of the boost chip in the boost circuit 13, and the like.
the utility model discloses a wire rod circuit has following advantage:
1) protocol software is arranged in the wire circuit, so that a quick charging protocol with unmatched power transmission equipment and target equipment can realize a quick charging function;
2) The wire circuit is internally provided with a boost chip, so that power transmission equipment (such as a charger) which does not support quick charging and is output by common 5V can also quickly charge target equipment;
3) The built-in direct circuit 12 enables the power transmission equipment and the target equipment to be directly connected under the condition of charging protocol matching or data transmission;
4) the system is matched with a main control circuit 11(MCU) for use, and is flexible and convenient to design and upgrade.
Example two:
the embodiment of the utility model provides a still provide a wire rod, this wire rod includes the wire rod circuit in the above-mentioned embodiment one, still includes: a charging wire; the wire circuit is arranged in the charging wire.
In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A wire circuit, comprising: the device comprises a main control circuit, a direct circuit, a booster circuit, a USB interface circuit and a Type-C interface circuit; the main control circuit is respectively connected with the direct circuit, the boost circuit, the Type-C interface circuit and the USB interface circuit, the direct circuit is respectively connected with the Type-C interface circuit and the USB interface circuit, and the boost circuit is respectively connected with the Type-C interface circuit and the USB interface circuit;
the Type-C interface circuit is used for connecting target equipment;
The USB interface circuit is used for connecting power transmission equipment;
The main control circuit is used for acquiring a charging protocol of the target equipment and a quick charging protocol of the power transmission equipment after the Type-C interface circuit is connected with the target equipment and the USB interface circuit is connected with the power transmission equipment, and determining a target charging circuit in the direct-current circuit and the booster circuit based on the charging protocol and the quick charging protocol so as to realize quick charging of the target equipment through the conduction of the target charging circuit.
2. The wire circuit of claim 1,
the USB interface circuit is also used for connecting data transmission equipment;
the main control circuit is further used for controlling the direct circuit to be communicated with the booster circuit after the Type-C interface circuit is connected with the target equipment and the USB interface circuit is connected with the data transmission equipment, so that the data transmission equipment and the target equipment can carry out data communication.
3. The wire circuit of claim 1, wherein the pass-through circuit comprises: the circuit comprises a through chip, a first capacitor, a first resistor and a second resistor;
The first end of the first capacitor is connected with the through chip, the first end of the first resistor and the first end of the second resistor respectively; the second end of the first capacitor is grounded; the second end of the first capacitor is connected with the second end of the second resistor; the second end of the first resistor is connected with the main control circuit;
the main control circuit is used for controlling the through chip to be conducted by controlling the level on the first resistor to be pulled down, so that the through circuit is conducted.
4. the wire circuit of claim 3, wherein the boost circuit comprises: the boost circuit comprises a boost chip, a third resistor, a second capacitor, a third capacitor, an inductor and a filter capacitor;
the first end of the third resistor is respectively connected with the power transmission equipment and the first end of the second capacitor; a second end of the third resistor is respectively connected with a first end of the third capacitor and a first end of the inductor;
the second end of the second capacitor is grounded; the second end of the third capacitor is grounded; the second end of the inductor is connected with a switch pin of the boost chip;
a voltage output pin of the boosting chip is connected with the first end of the filter capacitor; the communication pin of the boosting chip is connected with the main control circuit; the second end of the filter capacitor is connected with the target equipment;
The main control circuit is used for sending a boost control signal to the boost chip through the communication pin so as to control the voltage output by the power transmission equipment to be boosted to a target voltage through the boost control signal, and transmitting the target voltage to the target equipment, so that the boost circuit is turned on.
5. the wire circuit of claim 4,
The main control circuit is further configured to send a through signal to the boost chip through the communication pin when the through circuit is turned on, so as to control the boost chip to start a through function through the through signal.
6. the wire circuit of claim 4,
The main control circuit is further configured to control the pass-through chip to be turned off by controlling the level on the first resistor to be pulled high when the boost circuit is turned on.
7. The wire circuit of claim 4, wherein the filter capacitance is plural in number.
8. The wire circuit of claim 4, wherein the pass-through chip comprises: an FSA550 chip; the boost chip includes: SW6124 chip.
9. The wire circuit of claim 1, wherein the charging protocol built into the master circuit comprises at least one of: QC charging protocol, PD charging protocol, AFC charging protocol, FCP charging protocol, SCP charging protocol, VOOC charging protocol, SFCP charging protocol, DASH charging protocol.
10. A wire rod, characterized by comprising: the wire circuit of any of the above claims 1-9, further comprising: a charging wire;
The wire circuit is arranged in the charging wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920863825.4U CN209805461U (en) | 2019-06-10 | 2019-06-10 | Wire circuit and wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920863825.4U CN209805461U (en) | 2019-06-10 | 2019-06-10 | Wire circuit and wire |
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| Publication Number | Publication Date |
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| CN209805461U true CN209805461U (en) | 2019-12-17 |
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| CN201920863825.4U Active CN209805461U (en) | 2019-06-10 | 2019-06-10 | Wire circuit and wire |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110165745A (en) * | 2019-06-10 | 2019-08-23 | 深圳市时商创展科技有限公司 | Wire rod circuit and wire rod |
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2019
- 2019-06-10 CN CN201920863825.4U patent/CN209805461U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110165745A (en) * | 2019-06-10 | 2019-08-23 | 深圳市时商创展科技有限公司 | Wire rod circuit and wire rod |
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Effective date of registration: 20220302 Address after: 518000 2nd floor, building B, Beisi intelligent park, 2008 Xuegang Road, Gangtou community, Bantian street, Longgang District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Beisi Technology Co.,Ltd. Address before: 518000 room 03, 6th floor, building 3, Yunli intelligent park, FAFA Road, Bantian street, Longgang District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN TIMES INNOVATION TECHNOLOGY Co.,Ltd. |
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