CN210430971U - Shared wireless charger - Google Patents
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- CN210430971U CN210430971U CN201921539213.6U CN201921539213U CN210430971U CN 210430971 U CN210430971 U CN 210430971U CN 201921539213 U CN201921539213 U CN 201921539213U CN 210430971 U CN210430971 U CN 210430971U
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Abstract
The utility model discloses a sharing wireless charger, including voltage stabilizing circuit, take bluetooth function's main control chip, charge switch, password button and status indicator lamp, voltage stabilizing circuit includes positive power input terminal and low dropout linear voltage regulator, positive power input terminal respectively with low dropout linear voltage regulator and charge switch connect, take bluetooth function's main control chip respectively with low dropout linear voltage regulator, charge switch, password button and status indicator lamp connect. Implement the utility model discloses a sharing wireless charger has following beneficial effect: the key unlocking function is supported, the Bluetooth secret-free unlocking function is also supported, the unlocking accuracy is improved, and the user experience sensitivity is improved.
Description
Technical Field
The utility model relates to a sharing field of charging, in particular to sharing wireless charger.
Background
The basic function or function of the shared charger is to charge the mobile phones with different charging interfaces. The shared wireless charger is a mobile phone charger based on a sharing concept. The existing shared charger mainly comprises two types, wherein one type is that the charger is unlocked by outputting a password through a key, a user purchases packages with different charging durations by scanning a two-dimensional code on the charger, a sharing background sends an unlocking password to the user, the user inputs the unlocking password through the key on the shared charger, the charging function is unlocked, and a mobile phone needing to be charged is charged; the other type is that the charger is unlocked through the Bluetooth, a user purchases packages with different charging durations by scanning a two-dimensional code on the charger, and the sharing background sends an unlocking password to the charger through the Bluetooth to unlock the charging function, so that the mobile phone needing to be charged is charged. In the existing product, the unlocking step of the key unlocking charger is complicated, and the background and the shared charger have no communication function, so that the problems that the background is inconsistent with the terminal unlocking password sequence, the unlocking is failed and the like are easily caused. The problem of unlocking failure caused by unstable Bluetooth signals in Bluetooth unlocking is solved, the Bluetooth unlocking only supports a single communication protocol of a WeChat public number or a WeChat applet, and partial user mobile phones which do not support the protocol fail to unlock and cannot normally unlock a charging function.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, provide and support button unblock function, also support the bluetooth and exempt from secret unblock function, improve the unblock degree of accuracy, improve the sharing wireless charger of the good sensitivity of user experience.
The utility model provides a technical scheme that its technical problem adopted is: the shared wireless charger comprises a voltage stabilizing circuit, a master control chip with a Bluetooth function, a charging switch, a password key and a status indicator lamp, wherein the voltage stabilizing circuit comprises a positive power supply input terminal and a low-dropout linear voltage regulator, the positive power supply input terminal is respectively connected with the low-dropout linear voltage regulator and the charging switch, and the master control chip with the Bluetooth function is respectively connected with the low-dropout linear voltage regulator, the charging switch, the password key and the status indicator lamp.
In the shared wireless charger of the utility model, the voltage stabilizing circuit further comprises a negative power input terminal, a twelfth capacitor, a thirteenth capacitor, a first resistor, a sixteenth capacitor and a seventeenth capacitor, the positive power supply input terminal is respectively connected with one end of the twelfth capacitor, one end of the thirteenth capacitor, one end of the first resistor and the first pin of the low dropout linear regulator, the negative power supply input terminal is respectively connected with the other end of the twelfth capacitor and the other end of the thirteenth capacitor and grounded, and a third pin of the low-dropout linear regulator is connected with the other end of the first resistor, a fifth pin of the low-dropout linear regulator is respectively connected with one end of a sixteenth capacitor, one end of a seventeenth capacitor and the status indicator lamp, and the other end of the sixteenth capacitor and the other end of the seventeenth capacitor are both grounded.
In the shared wireless charger of the utility model, the charging switch comprises a fourteenth capacitor, a third resistor, a first MOS transistor, a fifteenth capacitor, a fourth resistor, a second MOS transistor, a second resistor and a third MOS transistor, the source electrode of the first MOS tube is respectively connected with the anode power supply input terminal, one end of a fourteenth capacitor, one end of a third resistor and the source electrode of the third MOS tube, the other end of the fourteenth capacitor is grounded, the grid electrode of the first MOS tube is respectively connected with the other end of the third resistor and one end of the fourth resistor, the drain electrode of the first MOS tube is respectively connected with one end of the fifteenth capacitor, the positive voltage output end and the drain electrode of the third MOS tube, the other end of the fifteenth capacitor is grounded, the drain electrode of the second MOS tube is connected with the other end of the fourth resistor, and the grid electrode of the second MOS tube is connected with an eleventh pin of the master control chip with the Bluetooth function through the second resistor.
Shared wireless charger in, the password button includes first button, second button, third button and fourth button, the one end of first button, the one end of second button, the one end of third button and the one end of fourth button correspond respectively with take bluetooth function's main control chip's second pin, third pin, fourth pin and fourteenth pin to connect, the other end of first button, the other end of second button, the other end of third button and the other end of fourth button all ground connection.
The shared wireless charger of the present invention, wherein the status indicator light comprises a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, a fifteenth resistor, a first light emitting diode, a second light emitting diode, a third light emitting diode, a fourth light emitting diode, a fifth light emitting diode, a sixth light emitting diode, and a seventh light emitting diode, one end of the fifth resistor, one end of the sixth resistor, one end of the seventh resistor, one end of the eighth resistor, one end of the ninth resistor, one end of the tenth resistor, and one end of the fifteenth resistor are all connected to the fifth pin of the low dropout linear regulator, and the other end of the fifth resistor, the other end of the sixth resistor, the other end of the seventh resistor, the other end of the eighth resistor, the other end of the ninth resistor, the other end of the tenth resistor, and the other end of the fifteenth resistor respectively correspond to the anode, the cathode, and the cathode of the first light emitting diode, The anode of the second light emitting diode, the anode of the third light emitting diode, the anode of the fourth light emitting diode, the anode of the fifth light emitting diode, the anode of the sixth light emitting diode and the anode of the seventh light emitting diode are connected, and the cathode of the first light emitting diode, the cathode of the second light emitting diode, the cathode of the third light emitting diode, the cathode of the fourth light emitting diode, the cathode of the fifth light emitting diode, the cathode of the sixth light emitting diode and the cathode of the seventh light emitting diode are respectively connected with the fifteenth pin, the twentieth pin, the twenty-first pin, the twenty-second pin, the twenty-third pin, the twenty-fourth pin and the twelfth pin of the master control chip with the Bluetooth function in a corresponding mode.
In the shared wireless charger of the present invention, the shared wireless charger further comprises an I2C communication Flash, an eleventh resistor, a twelfth resistor, a fourteenth resistor, a thirteenth resistor and an eighteenth capacitor, wherein a first pin of the I2C communication Flash is connected to one end of the eleventh resistor, a second pin of the I2C communication Flash is connected to one end of the twelfth resistor, a third pin of the I2C communication Flash is connected to one end of the fourteenth resistor, the other end of the eleventh resistor, the other end of the twelfth resistor, the other end of the fourteenth resistor and a fourth pin of the I2C communication Flash are all grounded, a fifth pin of the I2C communication Flash is connected to a tenth pin of the main control chip with bluetooth function, a sixth pin of the I2C communication Flash is connected to a ninth pin of the main control chip with bluetooth function, a seventh pin of the I2C communication Flash is grounded through the thirteenth resistor, and an eighth pin of the I2C communication Flash is grounded through the eighteenth capacitor.
Implement the utility model discloses a sharing wireless charger has following beneficial effect: owing to be equipped with including voltage stabilizing circuit, take bluetooth function's main control chip, the switch that charges, password button and status indicator lamp, voltage stabilizing circuit includes anodal power input terminal and low-voltage difference linear voltage regulator, and take bluetooth function's main control chip to receive the unblock password of the unblock instruction or the password button input that mobile terminal issued through the bluetooth, output high level to the switch that charges, open the function of charging through the switch that charges, treat battery charging outfit and charge, it has bluetooth unblock and button unblock function, the utility model discloses support button unblock function, also support the bluetooth and exempt from secret unblock function, improve the unblock degree of accuracy, improve the user experience and feel well.
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 description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only 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 shared wireless charger according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of the shared wireless charger in the embodiment.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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 the embodiment of the present invention, the structure of the shared wireless charger is shown in fig. 1. In fig. 1, the shared wireless charger includes a voltage stabilizing circuit 1, a main control chip U1 with a bluetooth function, a charging switch 3, a password key 4 and a status indicator lamp 5, the voltage stabilizing circuit 1 includes a positive power input terminal Vin + and a low dropout linear regulator U2, the positive power input terminal Vin + is connected with the low dropout linear regulator U2 and the charging switch 3 respectively, and the main control chip U1 with the bluetooth function is connected with the low dropout linear regulator U2, the charging switch 3, the password key 4 and the status indicator lamp 5 respectively.
The low dropout linear regulator U2 provides the required power for the main control chip U1 with the bluetooth function after the step-down, and the main control chip U1 with the bluetooth function receives the unlocking command issued by the mobile terminal (mobile phone or tablet personal computer, etc.) or the unlocking password input by the password key 4 through the bluetooth, outputs the high level to the charging switch 3, opens the charging function through the charging switch 3, charges the device to be charged, and simultaneously outputs the control signal to light the status indicator lamp 5. This sharing wireless charger has bluetooth unblock and button unblock function, the utility model discloses support little letter public number and little letter applet agreement, also support button unblock function, have the secret unblock function of bluetooth exemption, can greatly improve the unblock function of charger, improve the user experience and feel good.
The utility model discloses a take bluetooth function's master control chip U1, both can adopt the quick accurate unblock function of charging of bluetooth communication, also take the button function, when the bluetooth communication is inconvenient, adopt button password mode unblock function of charging. Moreover, when the Bluetooth is unlocked, the password sequence of the wireless charger and the background can be synchronously shared in time through the Bluetooth communication protocol, and the accuracy of key unlocking is effectively improved.
Fig. 2 is a schematic circuit diagram of the shared wireless charger in the present embodiment, in fig. 2, the voltage regulator circuit 1 further includes a negative power input terminal Vin-, a twelfth capacitor C12, a thirteenth capacitor C13, and a first resistor R1, a sixteenth capacitor C16 and a seventeenth capacitor C17, a positive power input terminal Vin + is connected to one end of the twelfth capacitor C12, one end of the thirteenth capacitor C13, one end of the first resistor R1 and the first pin of the low dropout regulator U2, a negative power input terminal Vin-is connected to the other end of the twelfth capacitor C12 and the other end of the thirteenth capacitor C13 and grounded, a third pin of the low dropout regulator U2 is connected to the other end of the first resistor R1, a fifth pin of the low dropout regulator U2 is connected to one end of the sixteenth capacitor C16, one end of the seventeenth capacitor C17 and the status indicator lamp 5, and the other end of the sixteenth capacitor C16 and the other end of the seventeenth capacitor C17 are grounded. The positive power supply input terminal Vin + inputs 5V/2A direct current power supply, and the positive power supply input terminal Vin +/the negative voltage input terminal Vin-belongs to a test point in the circuit.
The charging switch 3 comprises a fourteenth capacitor C14, a third resistor R3, a first MOS transistor Q1, a fifteenth capacitor C15, a fourth resistor R4, a second MOS transistor Q2, a second resistor R2 and a third MOS transistor Q3, the source of the first MOS transistor Q1 is connected to the positive power input terminal Vin +, one end of the fourteenth capacitor C14, one end of the third resistor R3 and the source of the third MOS transistor Q3, the other end of the fourteenth capacitor C14 is grounded, the gate of the first MOS transistor Q1 is connected to the other end of the third resistor R3 and one end of the fourth resistor R4, the drain of the first MOS transistor Q1 is connected to one end of the fifteenth capacitor C15, the positive voltage output terminal Vout + and the drain of the third MOS transistor Q3, the other end of the fifteenth capacitor C15 is grounded, the drain of the second MOS transistor Q2 is connected to the other end of the fourth resistor R4, and the gate of the second MOS transistor Q2 is connected to the eleventh pin of the bluetooth-enabled main control chip U1 through the second resistor R2. In this embodiment, the first MOS transistor Q1 and the third MOS transistor Q3 are both P-channel MOS transistors, and the second MOS transistor Q2 is an N-channel MOS transistor.
The password key 4 comprises a first key S1, a second key S2, a third key S3 and a fourth key S4, wherein one end of the first key S1, one end of the second key S2, one end of the third key S3 and one end of the fourth key S4 are respectively connected with a second pin, a third pin, a fourth pin and a fourteenth pin of a main control chip U1 with a bluetooth function, and the other end of the first key S1, the other end of the second key S2, the other end of the third key S3 and the other end of the fourth key S4 are all grounded GND.
When the main control chip U1 with the bluetooth function receives an unlocking instruction issued by the mobile terminal through bluetooth, or receives correct unlocking passwords input by the first key S1, the second key S2, the third key S3 and the fourth key S4, and then outputs a high level to TL _ B1, the second MOS transistor Q2 is turned on, so that the first MOS transistor Q1 and the third MOS transistor Q3 are turned on, and a charging current is charged to a device to be charged through the first MOS transistor Q1 and the third MOS transistor Q3; when the charging time is over, the main control chip U1 with the bluetooth function outputs a low level to TL _ B1, the first MOS transistor Q1 is turned off, the second MOS transistor Q2 and the third MOS transistor Q3 are turned off, the charging current is turned off, and the charging function is stopped.
The status indicator light 5 includes a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, a fifteenth resistor R15, a first light emitting diode LED1, a second light emitting diode LED2, a third light emitting diode LED3, a fourth light emitting diode LED3, a fifth light emitting diode LED3, a sixth light emitting diode LED3, and a seventh light emitting diode LED3, wherein one end of the fifth resistor R3, one end of the sixth resistor R3, one end of the seventh resistor R3, one end of the eighth resistor R3, one end of the ninth resistor R3, one end of the tenth resistor R3, and one end of the fifteenth resistor R3 are all connected to a fifth pin of the low dropout linear regulator U3, the other end of the fifth resistor R3, the other end of the sixth resistor R3, the other end of the seventh resistor R3, the other end of the eighth resistor R3, the other end of the ninth resistor R3, the fifteenth resistor R3, the anode of the ninth resistor R3, the anode of the ninth, An anode of the second light emitting diode LED2, an anode of the third light emitting diode LED3, an anode of the fourth light emitting diode LED4, an anode of the fifth light emitting diode LED5, an anode of the sixth light emitting diode LED6 and an anode of the seventh light emitting diode LED7 are connected, and a cathode of the first light emitting diode LED1, a cathode of the second light emitting diode LED2, a cathode of the third light emitting diode LED3, a cathode of the fourth light emitting diode LED4, a cathode of the fifth light emitting diode LED5, a cathode of the sixth light emitting diode LED6 and a cathode of the seventh light emitting diode LED7 are respectively connected with a fifteenth pin, a twentieth pin, a twenty-first pin, a twenty-second pin, a twenty-third pin, a twenty-fourth pin and a twelfth pin of the bluetooth-enabled main control chip U1.
The voltage input by the positive power input terminal Vin + is reduced by the low dropout regulator U2 to provide power for the main control chip U1 with the bluetooth function, the main control chip U1 with the bluetooth function receives an unlocking instruction issued by the mobile terminal through bluetooth, or receives a correct unlocking password input by the first key S1, the second key S2, the third key S3 and the fourth key S4, and then outputs a high level to the TL _ B1, so that the charging function is turned on, a device needing to be charged is charged, and at the same time, an LED control signal is output, and the charging indicator lamps (the first light emitting diode LED1, the second light emitting diode LED2, the third light emitting diode LED3, the fourth light emitting diode LED4, the fifth light emitting diode LED5, the sixth light emitting diode LED6 and the seventh light emitting diode LED7) are turned on.
In this embodiment, the shared wireless charger further includes an I2C communication Flash U3, an eleventh resistor R11, a twelfth resistor R12, a fourteenth resistor R14, a thirteenth resistor R13, and an eighteenth capacitor C18, wherein the I2C communication Flash U3 is used for storing information that needs to be stored by a user, a first pin of the I2C communication Flash U3 is connected with one end of the eleventh resistor R11, a second pin of the I2C communication Flash U C is connected with one end of the twelfth resistor R C, a third pin of the I2C communication Flash U C is connected with one end of the fourteenth resistor R C, the other end of the eleventh resistor R C, the other end of the twelfth resistor R C, the other end of the fourteenth resistor R C, a fourth pin of the I2C communication Flash U C are all grounded, a fifth pin of the I2C communication Flash U C is connected with a tenth pin of the main control chip U C with bluetooth function, and a ninth pin of the Flash chip C is connected with the ninth pin of the bluetooth chip C, the seventh pin of the I2C communication Flash U3 is grounded through a thirteenth resistor R13, and the eighth pin of the I2C communication Flash U3 is grounded to GND through an eighteenth capacitor C18.
The utility model discloses adopt bluetooth and two kinds of unblock modes of button on the hardware, on software, the bluetooth communication supports the communication mode of two kinds of differences of little letter public number and little letter applet, solves the problem that part mobile terminal bluetooth communication does not support little letter public number or little letter applet communication agreement, and it is correct only to need the bluetooth communication moreover, need not to pass through password verification, can unblock the function of charging of sharing wireless charger, increases the reliability of bluetooth unblock, improves the user experience sensitivity.
In a word, the utility model discloses a sharing wireless charger supports two agreement communications of little letter public number and little letter applet, improves bluetooth communication reliability. Have the password unblock function is exempted from in bluetooth unblock, improves the unblock reliability.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a sharing wireless charger, its characterized in that, includes voltage stabilizing circuit, takes bluetooth function's main control chip, charge switch, password button and status indicator lamp, voltage stabilizing circuit includes anodal power input terminal and low dropout linear voltage regulator, anodal power input terminal respectively with low dropout linear voltage regulator and charge switch are connected, take bluetooth function's main control chip respectively with low dropout linear voltage regulator, charge switch, password button and status indicator lamp are connected.
2. The shared wireless charger of claim 1, wherein the voltage regulator circuit further comprises a negative power input terminal, a twelfth capacitor, a thirteenth capacitor, a first resistor, a sixteenth capacitor, and a seventeenth capacitor, the positive power supply input terminal is respectively connected with one end of the twelfth capacitor, one end of the thirteenth capacitor, one end of the first resistor and the first pin of the low dropout linear regulator, the negative power supply input terminal is respectively connected with the other end of the twelfth capacitor and the other end of the thirteenth capacitor and grounded, and a third pin of the low-dropout linear regulator is connected with the other end of the first resistor, a fifth pin of the low-dropout linear regulator is respectively connected with one end of a sixteenth capacitor, one end of a seventeenth capacitor and the status indicator lamp, and the other end of the sixteenth capacitor and the other end of the seventeenth capacitor are both grounded.
3. The shared wireless charger according to claim 2, wherein the charging switch includes a fourteenth capacitor, a third resistor, a first MOS transistor, a fifteenth capacitor, a fourth resistor, a second MOS transistor, a second resistor, and a third MOS transistor, a source of the first MOS transistor is connected to the positive power input terminal, one end of the fourteenth capacitor, one end of the third resistor, and a source of the third MOS transistor, respectively, a second end of the fourteenth capacitor is grounded, a gate of the first MOS transistor is connected to the other end of the third resistor and one end of the fourth resistor, respectively, a drain of the first MOS transistor is connected to one end of the fifteenth capacitor, the positive voltage output terminal, and a drain of the third MOS transistor, respectively, a second end of the fifteenth capacitor is grounded, a drain of the second MOS transistor is connected to the other end of the fourth resistor, and a gate of the second MOS transistor is connected to an eleventh pin of the bluetooth master chip through the second resistor .
4. The shared wireless charger according to claim 1, wherein the password key comprises a first key, a second key, a third key and a fourth key, one end of the first key, one end of the second key, one end of the third key and one end of the fourth key are respectively connected to the second pin, the third pin, the fourth pin and the fourteenth pin of the bluetooth-enabled main control chip, and the other end of the first key, the other end of the second key, the other end of the third key and the other end of the fourth key are all grounded.
5. The shared wireless charger according to any one of claims 1 to 4, wherein the status indicator light comprises a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, a fifteenth resistor, a first light emitting diode, a second light emitting diode, a third light emitting diode, a fourth light emitting diode, a fifth light emitting diode, a sixth light emitting diode, and a seventh light emitting diode, one end of the fifth resistor, one end of the sixth resistor, one end of the seventh resistor, one end of the eighth resistor, one end of the ninth resistor, one end of the tenth resistor, and one end of the fifteenth resistor are all connected to the fifth pin of the low dropout linear regulator, and the other end of the fifth resistor, the other end of the sixth resistor, the other end of the seventh resistor, the other end of the eighth resistor, the other end of the ninth resistor, the other end of the fifth resistor, the sixth resistor, the seventh resistor, the fifth resistor, the sixth resistor, the, The other end of the tenth resistor and the other end of the fifteenth resistor are respectively and correspondingly connected with the anode of the first light emitting diode, the anode of the second light emitting diode, the anode of the third light emitting diode, the anode of the fourth light emitting diode, the anode of the fifth light emitting diode, the anode of the sixth light emitting diode and the anode of the seventh light emitting diode, and the cathode of the first light emitting diode, the cathode of the second light emitting diode, the cathode of the third light emitting diode, the cathode of the fourth light emitting diode, the cathode of the fifth light emitting diode, the cathode of the sixth light emitting diode and the cathode of the seventh light emitting diode are respectively and correspondingly connected with the fifteenth pin, the twentieth pin, the twenty-first pin, the twenty-second pin, the twenty-third pin, the twenty-fourth pin and the twelfth pin of the master control chip with the Bluetooth function.
6. The shared wireless charger according to claim 1, further comprising an I2C communication Flash, an eleventh resistor, a twelfth resistor, a fourteenth resistor, a thirteenth resistor and an eighteenth capacitor, wherein a first pin of the I2C communication Flash is connected to one end of the eleventh resistor, a second pin of the I2C communication Flash is connected to one end of the twelfth resistor, a third pin of the I2C communication Flash is connected to one end of the fourteenth resistor, the other end of the eleventh resistor, the other end of the twelfth resistor, the other end of the fourteenth resistor and a fourth pin of the I2C communication Flash are all grounded, a fifth pin of the I2C communication Flash is connected to a tenth pin of the Bluetooth function main control chip, a sixth pin of the I2C communication Flash is connected to a ninth pin of the Bluetooth function main control chip, and a seventh pin of the I2C communication Flash is grounded through the thirteenth resistor, and an eighth pin of the I2C communication Flash is grounded through the eighteenth capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921539213.6U CN210430971U (en) | 2019-09-16 | 2019-09-16 | Shared wireless charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921539213.6U CN210430971U (en) | 2019-09-16 | 2019-09-16 | Shared wireless charger |
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| Publication Number | Publication Date |
|---|---|
| CN210430971U true CN210430971U (en) | 2020-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921539213.6U Expired - Fee Related CN210430971U (en) | 2019-09-16 | 2019-09-16 | Shared wireless charger |
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| Country | Link |
|---|---|
| CN (1) | CN210430971U (en) |
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2019
- 2019-09-16 CN CN201921539213.6U patent/CN210430971U/en not_active Expired - Fee Related
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Granted publication date: 20200428 |