CN110011380B - Password charger and method - Google Patents
Password charger and method Download PDFInfo
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- CN110011380B CN110011380B CN201910340872.5A CN201910340872A CN110011380B CN 110011380 B CN110011380 B CN 110011380B CN 201910340872 A CN201910340872 A CN 201910340872A CN 110011380 B CN110011380 B CN 110011380B
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000013475 authorization Methods 0.000 claims description 51
- 238000003860 storage Methods 0.000 claims description 33
- 230000001960 triggered effect Effects 0.000 claims description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 6
- 238000004891 communication Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 6
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F15/00—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity
- G07F15/003—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity for electricity
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F15/00—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity
- G07F15/12—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity in which metering is on a time basis
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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
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
- H02J7/00038—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange using passive battery identification means, e.g. resistors or capacitors
- H02J7/00043—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange using passive battery identification means, e.g. resistors or capacitors using switches, contacts or markings, e.g. optical, magnetic or barcode
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a password charger and a method, wherein the password charger comprises a power adapter, an input power line, a charge control password device and an output power line, the output end of the power adapter is electrically connected with the input end of the input power line, the output end of the input power line is electrically connected with the input end of the charge control password device, an MCU controller and a password book memory are arranged in the charge control password device, a plurality of physical keys for inputting authorized passwords are arranged on the front surface of the charge control password device, a two-dimensional code pattern layer for recording unique equipment identification information is arranged on the back surface of the charge control password device, the output end of the charge control password device is electrically connected with the input end of the output power line, and a plurality of charging connectors of different types are arranged on the output end of the output power line. The invention has novel design, simple structure and low cost, does not need a communication module and a display module, effectively reduces the cost, can charge by code scanning payment, and is very convenient.
Description
Technical Field
The invention relates to the technical field of charging, in particular to a password charger and a method.
Background
At present, a plurality of shared charging devices exist in the market, and can meet the requirement of temporary charging of external mobile phones for people, but the fixed borrowing and returning points bring a plurality of inconveniences, and meanwhile, the fixed borrowing and returning points may not provide enough standby charging wires, so that the inconvenience is brought to the people for traveling. Although some shared chargers are also on the market, they are all provided with a display module and a communication module, and the corresponding authorized passwords can be obtained through communication connection between the mobile phone and the shared chargers, the structure design is complex, the cost is high, the operation cost is high for sharing economy, and if the equipment cost is high, the equipment cannot survive.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a password charger and a password charger method which are simple in structure and low in cost.
In order to achieve one of the above purposes, the present invention adopts the following technical scheme: the utility model provides a password charger, includes power adapter, input power cord, charge control password ware and output power cord, the output of power adapter with the input of input power cord is electric to be connected, the output of input power cord with charge control password ware's input is electric to be connected, be provided with MCU controller and codebook memory in the charge control password ware, charge control password ware's front is provided with a plurality of physical buttons that are used for inputting the authorized password, charge control password ware's back is provided with the two-dimensional code pattern layer that is used for recording unique equipment identification information, charge control password ware's output with the input of output power cord is electric to be connected, the output of output power cord is provided with a plurality of different grade type charging connector;
the charging control cipher device comprises a plastic shell and a circuit board, wherein the circuit board is fixed in the plastic shell, the MCU controller and the cipher pad memory are arranged on the circuit board, a power switch circuit, a clock circuit, a lithium battery, a red indicator lamp, a green knowledge lamp, a buzzer and a plurality of key switches are further arranged on the circuit board, the key switches are in one-to-one correspondence with the physical keys, a first threading hole for an input power line to pass through is formed in the input end of the plastic shell, and a second threading hole for an output power line to pass through is formed in the output end of the plastic shell.
Preferably, the power adapter and the input power cord are made as a fixed integral body.
Preferably, the power adapter is provided with an electric connection port, an electric connector is arranged at the input end of the input power line, and the electric connector is detachably connected with the electric connection port.
Preferably, the surface of the physical key is integrally provided with an outward convex or inward concave character-shaped structure.
Preferably, the physical keys include a first key, a second key, a third key and a fourth key.
Preferably, the two-dimensional code pattern layer is an ink coating.
Preferably, the charging connector comprises a Micro USB connector, a Lighting connector and a Type-C connector.
Preferably, the plastic shell comprises a first half shell and a second half shell, and the first half shell and the second half shell are fixedly connected through ultrasonic bonding.
In order to achieve the second purpose, the invention adopts the following technical scheme: the password charging method adopts the password charger and inserts a power adapter on a power supply socket, and the power adapter outputs power to a charging control password device, and the password charging method comprises the following steps:
scanning a two-dimensional code pattern layer on the back of a charging control cipher device by using mobile terminal equipment, and obtaining a random authorization cipher of the cipher charger after payment is completed by lease recharging, wherein the obtained random authorization ciphers are different each time;
pressing a physical key corresponding to the front face of the charging control cipher device to input the obtained random authorization cipher, and when the physical key is triggered each time, a red indicator lamp blinks to prompt, and a buzzer sounds short beeps; after the random authorization password is input, the MCU controller sends out a control instruction, the red indicator lamp is turned off, the green indicator lamp is normally on, the buzzer sends out a long beep sound, the power switch circuit is conducted, the charging connector outputs power, the clock circuit starts timing, and power can be provided for equipment to be charged within a preset time length;
if the charging needs to be finished in advance, the mobile terminal equipment is used for scanning the two-dimensional code pattern layer again, the charging is finished according to the charging finishing instruction operation received by the mobile terminal equipment, the remaining time is converted into the corresponding original charge path, and the charge path is returned to the payment account used for leasing and recharging.
Preferably, the codebook memory is provided with a first storage unit and a second storage unit, and all random authorization passwords are prestored in the first storage unit; after each time the obtained random authorization code is used, the MCU controller transfers the random authorization code from the first storage unit to the second storage unit; after all the random authorization passwords of the first storage unit are used, the MCU controller starts to read the random authorization passwords of the second storage unit; after each time the obtained random authorization code is used, the MCU controller restores the random authorization code from the second storage unit to the first storage unit; after all the random authorization passwords of the second storage unit are used, the MCU controller starts to read the random authorization passwords of the first storage unit and starts the next period; and so on.
Compared with the prior art, the invention has the following beneficial effects: the password charger and the method are novel in design, simple and reasonable in structure and low in cost, a display module and a communication module are not needed, design complexity is simplified, development cost and production cost are effectively reduced, a user only needs to sweep two-dimension code payment, mobile phones and flat-plate waiting charging equipment can be charged, operation is very convenient, the password charger and the method are more suitable for shared economic markets with high operation cost, and the password charger and the method are particularly suitable for relatively closed places such as guest rooms such as hotels/guesthouses, meeting rooms, KTV boxes and Internet bar compartments, and can be used in other open places of course.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a schematic diagram of a front structure of a charge control encoder according to a first embodiment of the present invention.
Fig. 3 is a schematic diagram of a back structure of a charge control encoder according to a first embodiment of the present invention.
Fig. 4 is a schematic top view of a charge control encoder according to a first embodiment of the present invention.
Fig. 5 is a schematic plugging diagram of a second embodiment of the present invention.
Fig. 6 is a functional block diagram of a first embodiment of the present invention.
Fig. 7 is a block diagram of the workflow of a third embodiment of the invention.
Reference numerals: 100. a power adapter; 110. an electrical connection port; 200. an input power line; 210. an electrical connector; 300. a charge control cipher device; 310. a physical key; 311. a first key; 312. a second key; 313. a third key; 314. a fourth key; 320. a two-dimensional code pattern layer; 330. a plastic housing; 331. a first threading hole; 332. a second threading hole; 333. a first half shell; 334. a second half shell; 340. an indication structure; 350. an anti-slip protruding portion; 400. an output power line; 410. a charging connector; 411. micro USB joint; 412. a Lighting joint; 413. Type-C linker.
Detailed Description
In order to make the above features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.
Embodiment one: as shown in fig. 1 to 4, a password charger comprises a power adapter 100, an input power line 200, a charge control password device 300 and an output power line 400, wherein the output end of the power adapter 100 is electrically connected with the input end of the input power line 200, the output end of the input power line 200 is electrically connected with the input end of the charge control password device 300, an MCU controller and a password memory are arranged in the charge control password device 300, a plurality of physical keys 310 for inputting an authorized password are arranged on the front surface of the charge control password device 300, a two-dimensional code pattern layer 320 for recording unique device identification information is arranged on the back surface of the charge control password device 300, the output end of the charge control password device 300 is electrically connected with the input end of the output power line 400, and a plurality of different types of charge joints 410 are arranged on the output end of the output power line 400. The power adapter 100 and the input power line 200 are manufactured into a fixed integral body, the power adapter 100 can adopt the existing mature product, support short-circuit protection, overcurrent protection and overtemperature protection, and can provide 5V/2A (Max) power supply output.
In the first embodiment, the physical key 310 includes a first key 311, a second key 312, a third key 313 and a fourth key 314, the surface of the physical key 310 is integrally provided with an inward concave character structure, wherein the characters are Arabic numerals, for example, the characters on the first key 311, the second key 312, the third key 313 and the fourth key 314 are Arabic numerals 1, 2, 3 and 4 respectively, and the numerals and the keys are made into an integral number key, compared with a number sticker, the number key is not separated, the use is reliable, the appearance is more striking and more visual, and the user can conveniently read and press the physical key 310 when receiving an authorized password. Of course, the character-shaped structure may be arranged to be convex outwards, wherein the characters may also be english letters (such as a, b, c, d), a combination of english letters and arabic numerals, a combination of symbols, symbols and other types of characters, etc.
In the first embodiment, the charging connector 410 includes a Micro USB connector 411, a Lighting connector 412 and a Type-C connector 413, which can be compatible with devices with multiple interfaces, for example, the Micro USB connector 411 supports charging of some android phones, the Lighting connector 412 supports charging of apple phones, the Type-C connector 413 supports charging of DFP chargeable devices (such as other android phones), and devices with different charging interfaces are conveniently charged. Of course, the charging connector 410 is not limited to the above-mentioned one-to-three structure, but may be one-to-two, one-to-four or more.
In the first embodiment, the charge control password device 300 includes a plastic housing 330 and a circuit board (not visible in the figure), the circuit board is fixed in the plastic housing 330, the MCU controller and the password book memory are disposed on the circuit board (may use an AT89S51 single-chip microcomputer), the circuit board is further provided with a power switch circuit (may directly use the existing design), a clock circuit (may directly use the existing design), a lithium battery, a red indicator light, a green indicator light, a buzzer and a plurality of key switches, the key switches are in one-to-one correspondence with the physical keys 310, the input end of the plastic housing 330 is provided with a first threading hole 331 through which the input power line 200 passes, and the output end of the plastic housing 330 is provided with a second threading hole 332 through which the output power line 400 passes. The MCU controller is not limited in model number, and can be an existing mature product, such as an MCS-51 series MCU controller; the key switch can be a micro switch or a membrane switch, etc. The fixed authorization codebook is arranged in the codebook memory, and the authorization passwords are multi-digit (such as 5-digit), so that the number of the passwords can be enriched, and the password repetition rate of different password chargers is reduced; by adopting the form of the codebook, a communication module is not required to be arranged on the circuit board, and the cost is low.
In the first embodiment, the plastic housing 330 includes a first half-shell 333 having a circular shape and a second half-shell 334 having a circular shape, and the first half-shell 333 and the second half-shell 334 are fixedly connected by ultrasonic bonding, without screws, so as to prevent the first half-shell 333 and the second half-shell 334 from being disassembled at will; the physical key 310 is exposed on the outer surface of the first half shell 333, the two-dimensional code pattern layer 320 is arranged on the outer surface of the second half shell 334, the two-dimensional code pattern layer 320 is an ink coating, and compared with the two-dimensional code sticker, the printed two-dimensional code pattern layer 320 is not easy to fall off and has long service life. In order to prompt the user, the back of the charge control code device 300 is further provided with an indication structure 340, and the indication structure 340 is preferably but not limited to a protrusion structure, wherein the indication structure 340 includes a "code-scanning charge" indication character and a triangle indication arrow, and the indication structure 340 is integrally formed with the second half-shell 334. For easy holding, the outer peripheral sidewall of the plastic housing 330 is provided with a plurality of symmetrically distributed anti-slip protrusions 350.
Referring to fig. 6, the working principle of the first embodiment is as follows: the power adapter 100 is plugged into a power supply socket, the power adapter 100 outputs power to the charging control password device 300, and the charging connector 410 is in a power non-output state in normal circumstances, so that the docking device cannot be charged; the user scans the two-dimension code pattern layer 320 on the back of the plastic shell 330 by using mobile terminal equipment (such as a mobile phone), after lease recharging (such as through WeChat and payment, for example) is completed, a random authorization code of the code charger can be obtained, the random authorization code obtained by scanning the two-dimension code pattern layer 320 is different each time, then the physical key 310 corresponding to the front of the plastic shell 330 is manually pressed to input the obtained 5-bit random authorization code, when the physical key 310 is triggered each time, a red indicator light flashes to prompt, a buzzer sends out a short beep sound, when the 5-bit random authorization code is input, an MCU controller sends out a control instruction, the red indicator light is turned off, a green indicator light is normally on, the buzzer sends out a long beep sound, a power switch circuit is turned on, a charging connector 410 outputs power, and a clock circuit starts timing, so that the power can be provided for the equipment to be charged within a preset duration; when the user wants to finish charging in advance, the user scans the two-dimensional code pattern layer 320 again, and according to the instruction of finishing charging, for example, a certain physical key 310 is pressed for a few seconds (for example, 5 seconds), the charging is finished, and the remaining time can be converted into corresponding cost to return to the payment account of the user.
Embodiment two: as shown in fig. 5, a cipher charger is different from the first embodiment in that: the power adapter 100 and the input power cord 200 are detachably connected. For example, the power adapter 100 is provided with an electrical connection port 110, an electrical connector 210 is provided at an input end of the input power cord 200, the electrical connector 210 is detachably connected to the electrical connection port 110, the electrical connector 210 is preferably but not limited to a USB connector, and the electrical connection port 110 is preferably but not limited to a USB connector.
Embodiment III: as shown in fig. 1 to 7, a password charging method, which adopts the password charger of the first embodiment or the second embodiment, and inserts the power adapter 100 on a power supply socket, the power adapter 100 outputs power to the charging control password device 300, includes:
scanning a two-dimensional code pattern layer 320 on the back of the charge control cipher 300 by using a mobile terminal device, and obtaining a random authorization code of the cipher charger after the lease recharging is completed through payment of a WeChat, a payment device, a bank App or an online bank and other payment tools, wherein the obtained random authorization code is different and can be used only once in a period;
pressing a physical key 310 corresponding to the front surface of the charging control password device to input the obtained random authorization password, wherein a red indicator lamp blinks to prompt when the physical key 310 is triggered each time, and a buzzer sounds short beeps; after the random authorization password is input, the MCU controller sends out a control instruction, the red indicator lamp is turned off, the green indicator lamp is normally on, the buzzer sends out a long beep sound, the power switch circuit is conducted, the charging connector 410 outputs power, the clock circuit starts to time, and power can be provided for equipment to be charged within a preset time length;
if the charging needs to be finished in advance, the mobile terminal equipment is used for scanning the two-dimension code pattern layer 320 again, the charging is finished according to the charging finishing instruction operation received by the mobile terminal equipment, the remaining time is converted into the corresponding expense original path, and the expense original path is returned to the payment account used by the lease recharging, so that the method is more practical for the user. Specifically, when the two-dimension code pattern layer 320 is scanned again, the server side judges whether the current user has an unfinished order on the password charger device, if so, the current order remaining time is calculated, the effective password of the current password charger device conforming to the current remaining time is read, the corresponding remaining cost is returned to the payment account of the user, and if not, a new order is generated.
In the third embodiment, after the two-dimensional code pattern layer 320 is scanned, a plurality of charging time options, such as 30min, 1h, 2h, 3h, 4h, 5h, 6h, …, 12h, etc., are displayed on the mobile terminal device, and different charging time options are correspondingly provided with different charging amounts, such as longer charging time and more preferential charging time, and the user of the password charger can be set according to the market conditions of the actual market.
In the third embodiment, the codebook memory is provided with a first storage unit and a second storage unit, and all random authorization passwords are stored in the first storage unit in advance. After each time the obtained random authorization code is used (after being input or after being charged), the MCU controller transfers the random authorization code from the first storage unit to the second storage unit; after all the random authorization passwords of the first storage unit are used, the MCU controller starts to read the random authorization passwords of the second storage unit; after each time the obtained random authorization code is used, the MCU controller restores the random authorization code from the second storage unit to the first storage unit; after all the random authorization passwords of the second storage unit are used, the MCU controller starts to read the random authorization passwords of the first storage unit and starts the next period; and so on. The database of the server side and the codebook memory of the cipher charger do synchronous action, so that the random authorization cipher obtained by each scanning will not be repeated in one period.
An alternative solution is: after each time the obtained random authorization code is used, the MCU controller marks the corresponding random authorization code in the code book memory into a disabled state; when all the random authorization passwords are marked to be in a disabled state, the MCU controller automatically resets all the random authorization passwords in the codebook memory to be in an enabled state; and so on. The database of the server side and the codebook memory of the cipher charger do synchronous action, so that the random authorization cipher obtained by each scanning will not be repeated in one period.
The above embodiments are merely preferred embodiments of the present invention, and the present invention is not limited thereto, and any simple modification, equivalent changes and variation of the above embodiments according to the technical principles of the present invention should be considered as covered by the present invention by any person skilled in the art without departing from the technical scope of the present invention.
Claims (8)
1. A cipher charging method is characterized in that a cipher charger is adopted, a power adapter is inserted into a power supply socket, and the power adapter outputs power to a charging control cipher device;
the password charger comprises a power adapter, an input power line, a charging control password device and an output power line, wherein the output end of the power adapter is electrically connected with the input end of the input power line, the output end of the input power line is electrically connected with the input end of the charging control password device, an MCU controller and a password book memory are arranged in the charging control password device, a plurality of physical keys for inputting an authorized password are arranged on the front face of the charging control password device, a two-dimensional code pattern layer for recording unique equipment identification information is arranged on the back face of the charging control password device, the output end of the charging control password device is electrically connected with the input end of the output power line, and a plurality of charging connectors of different types are arranged at the output end of the output power line;
the charging control cipher device comprises a plastic shell and a circuit board, wherein the circuit board is fixed in the plastic shell, the MCU controller and the cipher pad memory are arranged on the circuit board, a power switch circuit, a clock circuit, a lithium battery, a red indicator lamp, a green knowledge lamp, a buzzer and a plurality of key switches are further arranged on the circuit board, the key switches are in one-to-one correspondence with the physical keys, a first threading hole for an input power line to pass through is formed in the input end of the plastic shell, and a second threading hole for an output power line to pass through is formed in the output end of the plastic shell;
the password charging method comprises the following steps:
scanning a two-dimensional code pattern layer on the back of a charging control cipher device by using mobile terminal equipment, and obtaining a random authorization cipher of the cipher charger after payment is completed by lease recharging, wherein the obtained random authorization ciphers are different each time;
pressing a physical key corresponding to the front face of the charging control cipher device to input the obtained random authorization cipher, and when the physical key is triggered each time, a red indicator lamp blinks to prompt, and a buzzer sounds short beeps; after the random authorization password is input, the MCU controller sends out a control instruction, the red indicator lamp is turned off, the green indicator lamp is normally on, the buzzer sends out a long beep sound, the power switch circuit is conducted, the charging connector outputs power, the clock circuit starts timing, and power can be provided for equipment to be charged within a preset time length;
if the charging needs to be finished in advance, scanning the two-dimensional code pattern layer by the mobile terminal equipment again, finishing the charging according to the charging finishing instruction operation received by the mobile terminal equipment, and converting the residual time into a corresponding original cost to return to a payment account used by lease recharging;
the codebook memory is provided with a first storage unit and a second storage unit, and all random authorization passwords are stored in the first storage unit in advance; after each time the obtained random authorization code is used, the MCU controller transfers the random authorization code from the first storage unit to the second storage unit; after all the random authorization passwords of the first storage unit are used, the MCU controller starts to read the random authorization passwords of the second storage unit; after each time the obtained random authorization code is used, the MCU controller restores the random authorization code from the second storage unit to the first storage unit; after all the random authorization passwords of the second storage unit are used, the MCU controller starts to read the random authorization passwords of the first storage unit and starts the next period; and so on.
2. The cryptographic charging method according to claim 1, wherein: the power adapter and the input power cord are made as a fixed integral body.
3. The cryptographic charging method according to claim 1, wherein: the power adapter is provided with an electric connector, the input end of the input power line is provided with an electric connector, and the electric connector is detachably connected with the electric connector.
4. The cryptographic charging method according to claim 1, wherein: the surface of the physical key is integrally provided with a character-shaped structure which is outwards convex or inwards concave.
5. The cryptographic charging method according to claim 1 or 4, wherein: the physical keys include a first key, a second key, a third key, and a fourth key.
6. The cryptographic charging method according to claim 1, wherein: the two-dimensional code pattern layer is an ink coating.
7. The cryptographic charging method according to claim 1, wherein: the charging connector comprises a Micro USB connector, a Lighting connector and a Type-C connector.
8. The cryptographic charging method according to claim 1, wherein: the plastic shell comprises a first half shell and a second half shell, and the first half shell and the second half shell are fixedly connected through ultrasonic bonding.
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| CN201910340872.5A CN110011380B (en) | 2019-04-25 | 2019-04-25 | Password charger and method |
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| CN201910340872.5A CN110011380B (en) | 2019-04-25 | 2019-04-25 | Password charger and method |
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| CN110011380B true CN110011380B (en) | 2024-03-12 |
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