AC charger on-off adjusting method and system

Abstract

The invention relates to an AC charger on-off adjusting method and system, and relates to the technical field of electrical appliances, and the method comprises the steps: 1, collecting the clamping force of a preset release on a charger electrode plate, analyzing the clamping force, and continuously monitoring the charging current of a charger when the clamping force is within a preset stable clamping interval value; 2, analyzing a current signal of the charging current, and when the current signal is consistent with a preset battery full-charging signal, sending a resistance value adjusting instruction to increase the resistance value of a preset adjusting resistor; step 3, when the magnitude of the charging current is within a preset safety current range, indicating a preset release to reduce the clamping force on the electrode plate; and step 4, when the clamping force of the release is within the preset loosening clamping force interval value, indicating a preset magnetic attraction device to attract the electrode slice. The application has the effect of reducing the probability of short circuit hidden danger caused by overcharge when the charger charges the battery.

Description

Technical Field

[0001] The present application relates to the technical field of chargers, and in particular to an on-off adjustment method and system for an AC charger. Background Art

[0002] With the popularization and promotion of the use of electric bicycles, the charging safety of electric bicycles has received more extensive attention.

[0003] In the related art, electric bicycles are charged with an AC charger. When the battery is fully charged, a person is required to unplug the charger from the socket in time to prevent the battery of the electric bicycle from being overcharged and causing a short circuit, while also reducing the number of charging sockets occupied by the charging pile.

[0004] With respect to the above-mentioned related technologies, when the charger cannot be unplugged in time after the battery is fully charged due to the negligence of personnel during charging, it is not conducive to reducing the probability of short circuit hidden dangers caused by overcharging of the battery. Summary of the invention

[0005] In order to reduce the probability of a short circuit hazard caused by overcharging of the battery due to the charger not being unplugged in time during the charging process, the present application provides an AC charger on-off adjustment method and system.

[0006] In a first aspect, the present application provides an AC charger on-off adjustment method, which adopts the following technical solution:

[0007] An AC charger on-off regulation method, comprising:

[0008] Step 1, collecting and analyzing the clamping force of the charger electrode sheet by the preset release, and continuously monitoring the charging current of the charger when the clamping force is within the preset stable clamping interval value;

[0009] Step 2, analyzing the current signal of the charging current, and when the current signal is consistent with the preset battery full signal, issuing a resistance adjustment instruction to increase the resistance of the preset adjustment resistor;

[0010] Step 3, when the current magnitude of the charging current is within a preset safety current range, instructing a preset release to reduce the clamping force on the electrode sheet;

[0011] Step 4: when the clamping force of the release is within a preset release clamping force interval value, instruct the preset magnetic attraction device to adsorb the electrode sheet.

[0012] By adopting the above technical solution, before the charger completes charging, the release device maintains a stable clamp on the electrode sheet of the charger, and gradually releases the clamping of the corresponding electrode sheet after charging is completed, so that the electrode sheet and the charging pile are loosened, and the electrode sheet is adsorbed by a magnetic suction device, so that it is not easy for the electrode sheet to form an electrical connection with the charging pile, which helps to reduce the probability of short circuit caused by overcharging and reduce the probability of damage caused by the charger falling to the ground after being disconnected. In addition, when the battery is fully charged, the resistance value is increased by adjusting the resistor to reduce the current input to the battery, so that the current load does not act on the battery, so that even if the electrode sheet remains connected to the charging socket, it helps to further reduce the probability of battery overcharging and improve charging safety.

[0013] Optionally, in step 2, instructing the preset release to reduce the clamping force on the electrode sheet includes:

[0014] Perform electrode quantity analysis on the charger to determine the number of clamps;

[0015] Match the tripping sequence of the electrode sheets corresponding to the clamping quantity in the preset tripping database, and instruct the preset tripper to reduce the clamping force in sequence according to the tripping sequence;

[0016] When the clamping force of each electrode sheet on the release is within the preset release holding force interval value, the preset release is instructed to adjust the clamping force to the preset stable clamping interval value.

[0017] By adopting the above technical solution, when different chargers are plugged into the charging pile, the clamping force required by the release to clamp the electrode sheet is different, and the electrode sheets are released in sequence according to the release order, so that it is not easy for the charger to suddenly detach from the charging pile, which helps the magnetic adsorption device to stably adsorb the electrode sheet. When the release completely releases the clamping of each electrode sheet, the clamping force of the release is increased, so that the release can squeeze the electrode sheet, which helps to drive the electrode sheet to further detach from the charging pile, and further reduce the probability of the electrode sheet and the charging pile being connected and energized.

[0018] Optionally, when the clamping force is reduced in sequence according to the tripping sequence, it includes:

[0019] Collect the charging temperature of the charger during the charging process, and calculate according to the preset electrode sheet oxidation calculation strategy to determine the electrode sheet oxidation coefficient corresponding to the charging temperature;

[0020] When the oxidation coefficient of the electrode sheet is greater than the preset good oxidation coefficient, the preset oxidation repair device is instructed to perform surface friction treatment on the electrode sheet;

[0021] The electrode sheet oxidation calculation strategy is calculated using the following formula:

[0022] O(t)=k·ea·T(t) ;

[0023] T(t) = T0 + b·t;

[0024] Among them, O(t) represents the oxidation coefficient of the electrode sheet, k represents the thermal conductivity constant of the electrode sheet, a represents the influence coefficient of temperature on the oxidation rate of the electrode sheet, T(t) represents the temperature function of the electrode sheet changing with charging time, T0 represents the initial temperature of the electrode sheet, and b represents the temperature rise rate of the electrode sheet.

[0025] By adopting the above technical solution, when the clamping of the electrode sheets is released one by one, the oxidation coefficient of the electrode sheet surface is further analyzed, so that when the oxidation coefficient of the electrode sheet is greater than the good oxidation coefficient, the surface of the electrode sheet is friction-treated to reduce the surface oxidation degree of the electrode sheet, which helps the charger to charge effectively during subsequent charging use.

[0026] Optionally, when the electrode sheet is subjected to surface friction treatment, the process includes:

[0027] Conducting a current test on the electrode sheet to determine the detection current signal when the electrode sheet is undergoing oxidation repair;

[0028] Perform calculation and analysis based on the detection current signal and the preset oxidation repair strategy to determine the oxidation repair coefficient of the electrode sheet;

[0029] Based on the comparison between the oxidation repair coefficient and the preset good oxidation coefficient, it is determined whether to stop the oxidation repair of the electrode sheet or to maintain the oxidation repair of the electrode sheet.

[0030] By adopting the above technical solution, during the process of surface friction repair of the electrode sheet, the corresponding current signal is detected, and the corresponding current oxidation repair analysis is performed, so as to timely know the progress of oxidation repair and stop the friction treatment of the electrode sheet surface in time, thereby reducing the probability of excessive friction affecting the thickness loss of the electrode sheet.

[0031] Optionally, the oxidation repair strategy is calculated using the following formula:

[0032] O(f) = k·F·tn·μ;

[0033] Where O(f) represents the oxidation repair coefficient, k represents the oxidation rate constant under the action of friction force per unit time, F represents the contact extrusion force when the oxidation repair device performs friction treatment on the electrode sheet, t represents the friction time, n represents the number of frictions, and μ represents the oxidation repair proportional coefficient of each friction.

[0034] By adopting the above technical scheme, the basic extrusion force, friction times, friction time, and oxidation repair ratio coefficient of each friction during the surface treatment of the electrode sheet are analyzed and calculated, thereby obtaining the oxidation repair coefficient of the electrode sheet during the surface friction treatment.

[0035] Optionally, when determining the oxidation repair coefficient of the electrode sheet, it also includes:

[0036] Calculate based on the oxidation repair coefficient and the electrode sheet oxidation coefficient to determine the oxidation coefficient difference;

[0037] When the oxidation coefficient difference is within a preset small difference range, matching the oxidation coefficient difference with the repaired friction value in the preset oxidation friction database;

[0038] The repair friction value is compared with the adsorption force of the magnetic device. When the repair friction value is less than the adsorption force, a release signal is collected when the charger is pulled out from the charging pile.

[0039] The preset magnetic attraction device releases the electrode sheet based on the release signal instruction.

[0040] By adopting the above technical solution, the oxidation coefficient difference of the electrode sheet during surface oxidation treatment is calculated. When the oxidation coefficient difference is within a small range, the electrode sheet is loosened by adjusting the magnetic suction device so that the magnetic suction device is not likely to increase the surface friction of the electrode sheet due to the adsorption force, which helps to reduce the probability of excessive surface friction loss and increase the service life of the electrode sheet.

[0041] Optionally, when collecting the release signal when the charger is unplugged from the charging pile, it includes:

[0042] The detection charger analyzes the charger pressure value of the preset release to determine the pressure value change rate of the charger;

[0043] When the pressure value change rate is less than or equal to the preset pressure value static change rate, the preset magnetic attraction device is instructed to keep adsorbing the electrode sheet;

[0044] When the pressure value change rate is greater than the preset pressure value static change rate, a release signal is sent.

[0045] By adopting the above technical solution, during the adsorption process between the electrode sheet and the magnetic suction device of the charger, it is detected whether the pressure change of the charger occurs when the person pulls it out, so that a release signal is sent in time, which helps to improve the accuracy of detecting the force change of the charger and facilitates the charger to avoid excessive friction and squeezing and excessive loss when performing slight friction on the electrode sheet.

[0046] In a second aspect, the present application provides an AC charger on-off adjustment system, which adopts the following technical solution:

[0047] An AC charger on-off regulation system, comprising:

[0048] The acquisition module collects the clamping force of the charger electrode sheet by the preset release and analyzes it. When the clamping force is within the preset stable clamping interval value, the charging current of the charger is monitored;

[0049] A current analysis module analyzes the charging current to determine a current signal. When the current signal is consistent with a preset battery full signal, the preset release is instructed to reduce the clamping force on the electrode sheet.

[0050] The on-off control module analyzes whether the current signal is consistent with the preset stop charging signal when the clamping force is reduced to a preset release clamping force interval value. If they are consistent, the preset magnetic attraction device is instructed to adsorb the charger electrode sheet.

[0051] By adopting the above technical solution, before the charger completes charging, the release device maintains a stable clamp on the electrode sheet of the charger, and gradually releases the clamping of the corresponding electrode sheet after charging is completed, so that the electrode sheet and the charging pile are loosened, and the electrode sheet is adsorbed by the magnetic suction device, so that it is not easy for the electrode sheet to form an electrical connection with the charging pile, which helps to reduce the probability of short circuit caused by overcharging and reduce the probability of the charger falling to the ground and being damaged after being disconnected.

[0052] In summary, the present application includes at least one of the following beneficial technical effects:

[0053] 1. Before the charger completes charging, the release device keeps stably clamping the charger's electrode sheet until charging is completed, gradually releasing the clamping of the corresponding electrode sheet, so that the electrode sheet and the charging pile are loosened, and the electrode sheet is adsorbed by the magnetic suction device, so that it is not easy for the electrode sheet to form an electrical connection with the charging pile, which helps to reduce the probability of short circuit caused by overcharging;

[0054] 2. When the clamping of the electrode sheets is released one by one, the oxidation coefficient of the electrode sheet surface is further analyzed, so that when the oxidation coefficient of the electrode sheet is greater than the good oxidation coefficient, the surface of the electrode sheet is subjected to friction treatment to reduce the surface oxidation degree of the electrode sheet, which helps the charger to charge effectively in the subsequent charging process;

[0055] 3. During the surface friction repair process of the electrode sheet, the corresponding current signal is detected, and the corresponding current oxidation repair analysis is performed to timely know the progress of the oxidation repair and stop the friction treatment on the surface of the electrode sheet in time to reduce the probability of excessive friction affecting the thickness loss of the electrode sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 It is a method flow chart of steps S100 to S400 in this application.

[0057] Figure 2 It is a method flow chart of steps S201 to S203 in this application.

[0058] Figure 3 It is a method flow chart of steps S2021 to S2022 in this application.

[0059] Figure 4 It is a method flow chart of steps S2023 to S2025 in this application.

[0060] Figure 5 It is a method flow chart of steps S2026 to S2029 in this application.

[0061] Figure 6 It is a method flow chart of steps SS20281 to S20283 in this application.

[0062] Figure 7 It is a circuit diagram of the charger used for power on and off control in this application.

[0063] Figure 8 It is a connection circuit diagram of the charger and the release in this application. DETAILED DESCRIPTION

[0064] In order to make the purpose, technical solutions and advantages of this application more clear, the following Figure 1-8 It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0065] The embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings.

[0066] An embodiment of the present application discloses an on-off adjustment method for an AC charger. Before the charger completes charging, the release device maintains a stable clamping of the electrode sheet of the charger, and gradually releases the clamping of the corresponding electrode sheet after charging is completed, so that the electrode sheet and the charging pile are loosened, and the electrode sheet is adsorbed by a magnetic suction device, so that it is not easy for the electrode sheet to form an electrical connection with the charging pile, which helps to reduce the probability of short circuit caused by overcharging and reduces the probability of the charger falling to the ground and being damaged after being disconnected.

[0067] Reference Figure 1 The method flow of the AC charger on-off adjustment method includes the following steps:

[0068] Step S100: Collect and analyze the clamping force of the charger electrode sheet by the preset release, and when the clamping force is within the preset stable clamping interval value, continuously monitor the charging current of the charger.

[0069] The release is a charger release device pre-installed on the charging pile, which can clamp and release the charger's electrode sheet and drive the electrode sheet and the charging pile to separate.

[0070] In addition, the release is provided with a corresponding pressure sensor element, which detects the extrusion force generated when the electrode sheet is clamped through the pressure sensor element and defines it as the clamping force on the electrode sheet. The purpose of collecting the clamping force is to call it for further analysis later.

[0071] Step S200: analyzing the current signal of the charging current, and when the current signal is consistent with the preset battery full signal, issuing a resistance adjustment instruction to increase the resistance of the preset adjustment resistor.

[0072] The current signal represents the level signal of the current. During the charging process, the current signal passing through the charger is a high-level signal. When the battery is about to be fully charged, the signal passing through the charger is a low-level signal. The low-level signal is defined as a battery full signal. By monitoring and comparing and analyzing the current signal, it is possible to know in time whether the battery is fully charged. When the current signal and the battery full signal are consistent, it means that the battery is fully charged at this time. The releaser is controlled to reduce the clamping force on the electrode sheet to facilitate the charger to be released from the charging pile.

[0073] It should be noted that when the charger is inserted into the charging pile, the electrode plates of the charger and the socket of the charging pile maintain contact, and the release automatically clamps the electrode plates of the charger. The charger is equipped with an automatic power on and off chip unit. When the release clamps the electrode plates, the charger charges the battery, and when the release releases the electrode plates, charging stops.

[0074] The regulating resistor is an adjustable resistor in the charger. By receiving a resistance adjustment instruction and increasing the resistance of the regulating resistor, the current transmitted to the battery can be reduced, so that the current load acts on the battery, reducing the probability of battery overcharging.

[0075] Step S300: Step 3, when the current magnitude of the charging current is within a preset safe current range, instruct the preset release to reduce the clamping force on the electrode sheet.

[0076] The safe current range means that the charging current output by the charger to the battery is less than the required charging current. At this time, the battery will not be overcharged, and the release is instructed to reduce the clamping force on the electrode sheet to release the charger.

[0077] Step S400: when the clamping force of the release is within a preset release clamping force interval value, instruct the preset magnetic attraction device to adsorb the electrode sheet.

[0078] The release clamping force interval value is a pre-set clamping force interval value, indicating that the clamping force of the releaser on the electrode sheet is reduced to the minimum clamping force for releasing the electrode sheet. By comparing the clamping force with the pre-set release clamping force interval value, it can be known whether the electrode sheet can be detached from the charging pile at this time. When the clamping force is within the release clamping force interval value, the magnetic suction device adsorbs the electrode sheet, so that after the electrode sheet and the charging pile are separated, the charger is not easy to fall directly from the charging pile. Among them, the magnetic suction device is a sliding mechanism pre-installed on the releaser. By arranging a magnetic block on the sliding mechanism, the sliding mechanism is connected to the servo motor and the control chip. When the control chip receives a prompt signal that is consistent with the current signal and the stop charging signal, the servo motor is controlled to provide a driving force to drive the magnetic block and the electrode sheet to approach and adsorb. When necessary, the magnetic block and the electrode sheet are controlled to separate.

[0079] Reference Figure 2 In step 2, instructing the preset release to reduce the clamping force on the electrode sheet includes:

[0080] Step S201: Analyze the number of electrode pieces on the charger to determine the clamping quantity.

[0081] When charging batteries with different battery capacities, different types of chargers are used, such as a three-socket charger, a dual-socket charger or a specific socket charger. When clamping different numbers of electrode sheets, the release is provided with corresponding clamping force and clamping number, and the clamping number indicates the number of clamping points for the electrode sheet.

[0082] Step S202: matching the electrode sheet tripping sequence corresponding to the clamping quantity in the preset tripping database, and instructing the preset tripper to reduce the clamping force in sequence according to the tripping sequence.

[0083] The tripping database stores different clamping numbers and corresponding tripping sequences. By inputting the clamping number, the corresponding tripping sequence can be matched and output. When the clamping force of the electrode sheet is reduced according to the tripping sequence, compared with directly loosening the clamping of the electrode sheet, the charger is not likely to fall directly, which plays a protective role.

[0084] Step S203: when the clamping force of each electrode sheet on the release device is within the preset release holding force interval value, instruct the preset release device to adjust the clamping force to within the preset stable clamping interval value.

[0085] When the releaser releases each electrode sheet in the release order, until the last electrode sheet is released, the clamping force is increased to a stable clamping range by controlling the releaser to adjust the clamping force. This makes it difficult for the electrode sheet and the charging pile to automatically connect to the charging pile after they are separated without human adjustment, which helps to maintain the power-off stability of the charger.

[0086] Reference Figure 3 , when the clamping force is reduced in sequence according to the tripping sequence, including:

[0087] Step S2021: collecting the charging temperature of the charger during the charging process, and performing calculations according to a preset electrode sheet oxidation calculation strategy to determine the electrode sheet oxidation coefficient corresponding to the charging temperature.

[0088] The electrode sheet oxidation calculation strategy is a calculation formula used to calculate the electrode sheet oxidation coefficient. The specific calculation strategy is further developed in subsequent steps.

[0089] Step S2022: When the oxidation coefficient of the electrode sheet is greater than a preset good oxidation coefficient, instruct a preset oxidation repair device to perform surface friction treatment on the electrode sheet.

[0090] A good oxidation coefficient indicates that the surface oxidation of the electrode sheet is low and will not affect the normal charging of the charger. When the oxidation coefficient of the electrode sheet is greater than the preset good oxidation coefficient, it means that the oxidation caused by the surface of the charger will affect the normal charging. Then the oxidation repair device is controlled to rub the surface of the electrode sheet to repair the oxidized surface. The oxidation repair device is a friction mechanism pre-set on the release. The friction mechanism cooperates with the motor to ensure that the friction plate on the friction mechanism contacts and rubs the surface of the electrode sheet to remove the oxide layer on the surface of the electrode sheet. The reasons for the generation of the oxide layer include the heat generated by the charger during the conductive process of charging, and the violent oxidation caused by the instantaneous high temperature caused by the electric spark generated when the voltage is unstable when the electrode sheet is inserted into the charging pile.

[0091] The electrode sheet oxidation calculation strategy is calculated using the following formula:

[0092] O(t)=k·e a·T(t) ;

[0093] T(t) = T0 + b·t;

[0094] Among them, O(t) represents the oxidation coefficient of the electrode sheet, k represents the thermal conductivity constant of the electrode sheet, a represents the influence coefficient of temperature on the oxidation rate of the electrode sheet, T(t) represents the temperature function of the electrode sheet changing with charging time, T0 represents the initial temperature of the electrode sheet, and b represents the temperature rise rate of the electrode sheet.

[0095] Reference Figure 4 , when the electrode sheet is subjected to surface friction treatment, it includes:

[0096] Step S2023: Perform a current test on the electrode sheet to determine a detection current signal when the electrode sheet is undergoing oxidation repair.

[0097] The MUC control part on the charger controls the current to power the release, so that the release can detect the current through the electrode sheet, thereby detecting the detection current signal passing through the electrode sheet, and performing conductivity analysis on the current detection signal to determine whether the conductivity of the electrode sheet meets the required requirements, thereby facilitating the subsequent analysis of the oxidation repair effect of the electrode sheet.

[0098] Step S2024: Perform calculation and analysis based on the detected current signal and the preset oxidation repair strategy to determine the oxidation repair coefficient of the electrode sheet.

[0099] By monitoring and analyzing the detection current signal and calculating according to the oxidation repair strategy, the repair degree of the electrode sheet during oxidation repair can be known, and the repair degree is defined as the oxidation repair coefficient.

[0100] Step S2025: Determine whether to stop the oxidation repair of the electrode sheet or maintain the oxidation repair of the electrode sheet based on the comparison between the oxidation repair coefficient and the preset good oxidation coefficient.

[0101] By comparing the oxidation repair coefficient with the good oxidation coefficient, when the oxidation repair coefficient is less than or equal to the good oxidation coefficient, it means that the oxidized surface of the electrode sheet is well repaired and will not affect the normal charging of the charger, then the repair is stopped; otherwise, the surface friction treatment of the electrode sheet is continued to repair the oxidized surface.

[0102] The following formula is used for calculation of oxidation repair strategy:

[0103] O(f)=k·F·tn·μ.

[0104] Where O(f) represents the oxidation repair coefficient, k represents the oxidation rate constant under the action of friction force per unit time, F represents the contact extrusion force when the oxidation repair device performs friction treatment on the electrode sheet, t represents the friction time, n represents the number of frictions, and μ represents the oxidation repair proportional coefficient of each friction.

[0105] Reference Figure 5 , when determining the oxidation repair coefficient of the electrode sheet, it also includes:

[0106] Step S2026: Calculate based on the oxidation repair coefficient and the electrode sheet oxidation coefficient to determine the oxidation coefficient difference.

[0107] The difference between the oxidation repair coefficient and the electrode sheet oxidation coefficient is calculated, and the calculated difference is defined as the oxidation coefficient difference, so as to facilitate subsequent further analysis.

[0108] Step S2027: When the oxidation coefficient difference is within a preset small difference range, the repair friction value of the oxidation coefficient difference in the preset oxidation friction database is matched.

[0109] The small difference range is a pre-set interval value range, indicating that the oxidation coefficient difference is small. When performing oxidation repair, it is not necessary to perform a large degree of friction treatment on the electrode sheet. The repair friction value represents the friction extrusion force when the electrode sheet is subjected to surface friction. By pre-establishing an oxidation friction database, different oxidation coefficient differences are stored in the database, and the corresponding repair friction values ​​are stored. When the oxidation coefficient difference is input, the corresponding repair friction value is automatically matched and output.

[0110] Step S2028: Compare the repair friction value with the adsorption force of the magnetic device. When the repair friction value is less than the adsorption force, collect a release signal when the charger is pulled out from the charging pile.

[0111] By comparing the matching corresponding repair friction force value and the adsorption force of the magnetic device, we can know whether the adsorption force of the sequential device will affect the resistance of friction repair. If the repair friction force value is greater than the adsorption force, it means that when rubbing the electrode surface, even if the adsorption force is in the opposite direction of the friction force, it is not easy to cause additional excessive friction resistance. On the contrary, if the repair friction force value is less than the adsorption force, the adsorption force will increase the excessive friction, which is not conducive to accurate control of friction repair, and it is easy to cause excessive friction and cause electrode surface loss. At the same time, the release signal prompt when the charger is pulled out of the charging pile is collected for subsequent control.

[0112] Step S2029: Instructing the preset magnetic attraction device to release the electrode sheet based on the release signal.

[0113] When a release signal is collected, the magnetic adsorption device is instructed to release the electrode sheet so that people are not easily obstructed when removing the charger.

[0114] Reference Figure 6 , when collecting the release signal when the charger is unplugged from the charging pile, including:

[0115] Step S20281: The detection charger analyzes the charger pressure value of the preset release to determine the pressure value change rate of the charger.

[0116] When collecting the release signal, the pressure value between the releaser and the charger is monitored by the pressure sensor, and the pressure value change rate of the charger during the detection process is calculated to analyze whether the charger is detached from the releaser.

[0117] Step S20282: When the pressure value change rate is less than or equal to the preset pressure value static change rate, instruct the preset magnetic attraction device to keep adsorbing the electrode sheet.

[0118] Step S20283: When the pressure value change rate is greater than the preset pressure value static change rate, a release signal is sent.

[0119] The static change rate indicates that the pressure value change rate between the charger and the release is zero, indicating that the charger is not disconnected from the release, that is, the person has not unplugged the charger. When the pressure value change rate is less than or equal to the preset pressure value static change rate, it means that the charger is not unplugged at this time, and the magnetic suction device is instructed to adsorb the electrode sheet, otherwise, a release signal is issued.

[0120] Reference Figure 7 and Figure 8 The charger is provided with a rectifier module for controlling current input, an AC intelligent power-on and power-off module, a power conversion module, a rectifier and filter module, a current and voltage control module, a single-chip MUC control module, and a heat dissipation control module, wherein the external power supply output pin of the MUC control module is connected to the release to supply power to the release. It should be noted that the regulating resistor is provided in the rectifier module, and when a resistance adjustment instruction is received, the resistance value is increased until the power is cut off. When charging is performed again, the resistance value is reduced to restore to the set resistance value, and normal charging is not hindered.

[0121] Based on the same inventive concept, an embodiment of the present invention provides an AC charger on-off adjustment system, comprising:

[0122] The acquisition module collects the clamping force of the charger electrode sheet by the preset release and analyzes it. When the clamping force is within the preset stable clamping interval value, the charging current of the charger is monitored;

[0123] A current analysis module analyzes the charging current to determine a current signal. When the current signal is consistent with a preset battery full signal, the preset release is instructed to reduce the clamping force on the electrode sheet.

[0124] The on-off control module analyzes whether the current signal is consistent with the preset stop charging signal when the clamping force is reduced to a preset release clamping force interval value;

[0125] If they are consistent, it indicates that the preset magnetic attraction device is adsorbing the charger electrode sheet.

[0126] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device and unit described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0127] An embodiment of the present invention provides a computer-readable storage medium storing a computer program that can be loaded by a processor and execute an AC charger on-off adjustment method.

[0128] Computer storage media include, for example, various media that can store program codes, such as USB flash drives, mobile hard disks, read-only memories (ROM), random access memories (RAM), magnetic disks or optical disks.

[0129] Based on the same inventive concept, an embodiment of the present invention provides an intelligent terminal, including a memory and a processor, wherein the memory stores a computer program that can be loaded by the processor and execute an AC charger on-off adjustment method.

[0130] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device and unit described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0131] The above are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Any feature disclosed in this specification (including the abstract and drawings), unless otherwise stated, can be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

Claims

1. A method for adjusting the on-off state of an AC charger, characterized in that: The steps include: Step 1, collecting and analyzing the clamping force of the charger electrode sheet by the preset release, and continuously monitoring the charging current of the charger when the clamping force is within the preset stable clamping interval value; Step 2, analyzing the current signal of the charging current, and when the current signal is consistent with the preset battery full signal, issuing a resistance adjustment instruction to increase the resistance of the preset adjustment resistor; Step 3, when the current magnitude of the charging current is within a preset safe current range, instructing a preset release to reduce the clamping force on the electrode sheet; Step 4: when the clamping force of the release is within a preset release clamping force interval value, instruct the preset magnetic attraction device to adsorb the electrode sheet.

2. The AC charger on-off adjustment method according to claim 1, characterized in that: In step 2, instructing the preset release to reduce the clamping force on the electrode sheet includes: Perform electrode quantity analysis on the charger to determine the number of clamps; Match the electrode sheet tripping sequence corresponding to the clamping quantity in the preset tripping database, and instruct the preset tripper to reduce the clamping force in sequence according to the tripping sequence; When the clamping force of each electrode sheet on the release is within the preset release holding force interval value, the preset release is instructed to adjust the clamping force to within the preset stable clamping interval value.

3. The AC charger on-off adjustment method according to claim 2, characterized in that: When the clamping force is reduced in sequence according to the tripping sequence, including: Collect the charging temperature of the charger during the charging process, and calculate according to the preset electrode sheet oxidation calculation strategy to determine the electrode sheet oxidation coefficient corresponding to the charging temperature; When the oxidation coefficient of the electrode sheet is greater than the preset good oxidation coefficient, the preset oxidation repair device is instructed to perform surface friction treatment on the electrode sheet; The electrode sheet oxidation calculation strategy is calculated using the following formula: O(t)=k·e a·T(t) ; T(t) = T0 + b·t; Among them, O(t) represents the oxidation coefficient of the electrode sheet, k represents the thermal conductivity constant of the electrode sheet, a represents the influence coefficient of temperature on the oxidation rate of the electrode sheet, T(t) represents the temperature function of the electrode sheet changing with charging time, T0 represents the initial temperature of the electrode sheet, and b represents the temperature rise rate of the electrode sheet.

4. The AC charger on-off adjustment method according to claim 3, characterized in that: When the electrode sheet is subjected to surface friction treatment, it includes: Conducting a current test on the electrode sheet to determine the detection current signal when the electrode sheet is undergoing oxidation repair; Perform calculation and analysis based on the detection current signal and the preset oxidation repair strategy to determine the oxidation repair coefficient of the electrode sheet; Based on the comparison between the oxidation repair coefficient and the preset good oxidation coefficient, it is determined whether to stop the oxidation repair of the electrode sheet or to maintain the oxidation repair of the electrode sheet.

5. The AC charger on-off adjustment method according to claim 4, characterized in that: The following formula is used for calculation of oxidation repair strategy: O(f) = k·F·tn·μ; Where O(f) represents the oxidation repair coefficient, k represents the oxidation rate constant under the action of friction force per unit time, F represents the contact extrusion force when the oxidation repair device performs friction treatment on the electrode sheet, t represents the friction time, n represents the number of frictions, and μ represents the oxidation repair proportional coefficient of each friction.

6. The AC charger on-off adjustment method according to claim 4, characterized in that: When determining the oxidation repair coefficient of the electrode sheet, it also includes: Calculate based on the oxidation repair coefficient and the electrode sheet oxidation coefficient to determine the oxidation coefficient difference; When the oxidation coefficient difference is within a preset small difference range, matching the oxidation coefficient difference with the repaired friction value in the preset oxidation friction database; The repair friction value is compared with the adsorption force of the magnetic device. When the repair friction value is less than the adsorption force, a release signal is collected when the charger is pulled out from the charging pile. The preset magnetic attraction device releases the electrode sheet based on the release signal instruction.

7. The AC charger on-off adjustment method according to claim 6, characterized in that: When collecting the release signal when the charger is unplugged from the charging pile, including: The detection charger analyzes the charger pressure value of the preset release to determine the pressure value change rate of the charger; When the pressure value change rate is less than or equal to the preset pressure value static change rate, the preset magnetic attraction device is instructed to keep adsorbing the electrode sheet; When the pressure value change rate is greater than the preset pressure value static change rate, a release signal is sent.

8. An AC charger on-off regulation system, characterized in that: include: The acquisition module collects the clamping force of the charger electrode sheet by the preset release and analyzes it. When the clamping force is within the preset stable clamping interval value, the charging current of the charger is monitored; A current analysis module analyzes the charging current to determine the current signal. When the current signal is consistent with the preset battery full signal, the preset release is instructed to reduce the clamping force on the electrode sheet; The on-off control module analyzes whether the current signal is consistent with the preset stop charging signal when the clamping force is reduced to a preset release clamping force interval value. If they are consistent, the preset magnetic attraction device is instructed to adsorb the charger electrode sheet.

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