Soft start charging control method and device, charging equipment and storage medium

Abstract

The embodiment of the invention provides a soft start charging control method and device, charging equipment and a storage medium, and relates to the technical field of electric tools. The method is applied to a controller in charging equipment and comprises the following steps: acquiring an initial battery voltage of a target battery; according to the initial battery voltage of the target battery, determining a charging mode corresponding to the initial battery voltage as an initial charging mode; adjusting the charging voltage of an initial charging unit corresponding to an initial charging mode in the charging equipment according to the initial battery voltage and a preset voltage difference; adjusting the charging current of the initial charging unit to be a preset minimum charging current value; controlling a charging switch unit in the charging equipment to be closed; and if it is detected that the surge current value of the charging switch unit meets the preset stable condition, the charging parameter of the initial charging unit is adjusted to be the initial preset charging parameter corresponding to the initial charging mode. According to the invention, the surge current generated at the moment when the charging switch unit is turned on can be reduced, and the charging equipment connected with the target battery is prevented from being burnt.

Description

Technical Field

[0001] The present application relates to the technical field of power tools, and in particular, to a soft-start charging control method, device, charging device and storage medium. Background Art

[0002] With the application and popularization of power tool products, the market demand for lithium battery packs and charging devices in the power tool product market is increasing. However, as the capacity of lithium battery packs continues to increase, the charging current of the charging devices supporting the lithium battery packs also gradually increases. As a result, when the battery is charging, due to the relatively small internal resistance of the lithium battery pack itself, when the lithium battery pack is in a low voltage state, a surge current will be generated instantaneously in the capacitor in the subsequent power supply circuit of the charging device.

[0003] In the prior art, when the lithium battery pack is in the charging process, generally, a higher-specification charging switch unit is added to the charging circuit of the charging device to withstand the surge current at the moment of charging, thereby avoiding damage to the charging device connected to the lithium battery pack.

[0004] However, when the lithium battery pack is charging, at the moment when the charging switch unit is turned on, the lithium battery pack is discharged through the charging switch unit, and the charging switch unit cannot effectively reduce the surge current at the moment of turning on, so that the charging device connected to the lithium battery pack is at risk of being burned out. Summary of the Invention

[0005] The objectives of the present application include, for example, providing a soft-start charging control method, device, charging device and storage medium, which can set a preset voltage difference higher than the initial battery voltage for the charging voltage of the target battery accessed by the controller, and set a preset minimum charging current value, thereby reducing the surge current generated by discharging the target battery through the charging switch unit at the moment when the charging switch unit is turned on, and thus avoiding the charging device connected to the target battery from being burned out.

[0006] To achieve the above objectives, the technical solutions adopted in the embodiments of the present application are as follows:

[0007] In a first aspect, an embodiment of the present application provides a soft-start charging control method, which is applied to a controller in a charging device, and the method includes:

[0008] After detecting the access of the target battery, obtain the initial battery voltage of the target battery;

[0009] According to the initial battery voltage of the target battery, determine that the charging mode corresponding to the initial battery voltage is the initial charging mode;

[0010] Adjust the charging voltage of the initial charging unit corresponding to the initial charging mode in the charging device according to the initial battery voltage and a preset voltage difference, such that the adjusted charging voltage is higher than the initial battery voltage, and the difference between the adjusted charging voltage and the initial battery voltage is the preset voltage difference;

[0011] Adjust the charging current of the initial charging unit to a preset minimum charging current value;

[0012] Control the charging switch unit in the charging device to close, so that the initial charging unit first charges the target battery based on the adjusted charging voltage and the preset minimum charging current value;

[0013] If it is detected that the inrush current value of the charging switch unit meets a preset stability condition, then adjust the charging parameters of the initial charging unit to the initial preset charging parameters corresponding to the initial charging mode, such that the initial charging unit continues to charge the target battery based on the initial preset charging parameters.

[0014] Optionally, the method further includes:

[0015] Obtain the current battery voltage of the target battery in the initial charging mode;

[0016] Determine whether the target battery reaches a switching trigger condition for the target charging mode according to the current battery voltage;

[0017] If the target battery meets the switching trigger condition, gradually adjust the charging parameters of the target charging unit corresponding to the target charging mode in the charging device to the target preset charging parameters of the target charging mode, such that the target charging unit charges the target battery based on the gradually adjusted target preset charging parameters.

[0018] Optionally, the method further includes:

[0019] If it is detected that the target battery is disconnected from the connection, then control the charging switch unit to immediately disconnect.

[0020] Optionally, the method further includes:

[0021] If it is detected that the current battery voltage of the target battery reaches a preset full voltage, then detect the charging current of the target battery;

[0022] If the charging current is less than a preset current value, then control the charging switch unit to disconnect, where the preset current value is greater than a preset trickle value and less than a preset maximum current value.

[0023] Optionally, determining the charging mode corresponding to the initial battery voltage of the target battery as the initial charging mode includes:

[0024] If the initial battery voltage is less than the first preset voltage value, determine the initial charging mode as the trickle charging mode. Correspondingly, the initial preset charging parameter is the preset trickle value;

[0025] Determining whether the target battery reaches the switching trigger condition of the target charging mode according to the current battery voltage includes:

[0026] If the current battery voltage is greater than or equal to the first preset voltage value, determine the target charging mode as the constant current charging mode, and the target battery reaches the switching trigger condition of the constant current charging mode. Correspondingly, the target charging parameter is the preset maximum current value;

[0027] Gradually adjusting the charging parameter of the target charging unit corresponding to the target charging mode in the charging device to the target preset charging parameter of the target charging mode, so that the target charging unit charges the target battery based on the gradually adjusted charging parameter includes:

[0028] Gradually adjust the charging current of the target charging unit to the preset target maximum current value, so that the target charging unit charges the target battery based on the gradually adjusted charging current.

[0029] Optionally, the method further includes:

[0030] If the detected current battery voltage of the target battery is greater than or equal to the second preset voltage value, determine that the target battery reaches the switching trigger condition of the constant voltage charging mode, where the second preset voltage value is greater than the first preset voltage value;

[0031] Gradually adjust the charging voltage of the constant voltage charging unit of the constant voltage charging mode in the charging device to the preset maximum voltage value corresponding to the constant voltage charging mode, so that the constant voltage charging unit charges the target battery based on the gradually adjusted charging voltage.

[0032] Optionally, determining the charging mode corresponding to the initial battery voltage of the target battery as the initial charging mode includes:

[0033] If the initial battery voltage is greater than or equal to the first preset voltage value, determine the initial charging mode as the constant current charging mode. Correspondingly, the initial preset charging parameter is the preset maximum current value, and the preset maximum current value is greater than the preset trickle value;

[0034] Determining whether the target battery reaches the switching trigger condition of the target charging mode according to the current battery voltage includes:

[0035] If the current battery voltage is greater than or equal to the second preset voltage value, it is determined that the target charging mode is the constant voltage charging mode, and the target battery reaches the switching trigger condition of the constant voltage charging mode. Correspondingly, the target preset charging parameter is the preset maximum voltage value;

[0036] Gradually adjusting the charging parameter of the target charging unit corresponding to the target charging mode in the charging device to the target preset charging parameter of the target charging mode, so that the target charging unit charges the target battery based on the gradually adjusted charging parameter, includes:

[0037] Gradually adjusting the charging voltage of the target charging unit to the preset maximum voltage value, so that the target charging unit charges the target battery based on the gradually adjusted charging voltage.

[0038] In a second aspect, an embodiment of the present application provides a soft start charging control device, which is applied to a controller in a charging device. The device includes:

[0039] An acquisition module, configured to acquire the initial battery voltage of the target battery after detecting that the target battery is connected;

[0040] A determination module, configured to determine the charging mode corresponding to the initial battery voltage as the initial charging mode according to the initial battery voltage of the target battery;

[0041] A first adjustment module, configured to adjust the charging voltage of the initial charging unit corresponding to the initial charging mode in the charging device according to the initial battery voltage and a preset voltage difference, so that the adjusted charging voltage is higher than the initial battery voltage, and the difference between the adjusted charging voltage and the initial battery voltage is the preset voltage difference;

[0042] A second adjustment module, configured to adjust the charging current of the initial charging unit to a preset minimum charging current value;

[0043] A control module, configured to control the charging switch unit in the charging device to close, so that the initial charging unit first charges the target battery based on the adjusted charging voltage and the preset minimum charging current value;

[0044] A third adjustment module, configured to adjust the charging parameters of the initial charging unit to the initial preset charging parameters corresponding to the initial charging mode if it is detected that the inrush current value of the charging switch meets a preset stability condition, so that the initial charging unit continues to charge the target battery based on the initial preset charging parameters.

[0045] In a third aspect, an embodiment of the present application provides a charging device, which includes: a controller, a switching switch unit, a trickle charging unit, a constant current charging unit, a constant voltage charging unit, a charging switch unit, and a collection unit. One end of the switching switch unit is respectively connected to one ends of the trickle charging unit, the constant current charging unit, and the constant voltage charging unit, and the other end of the switching switch unit is further connected to a preset power supply unit;

[0046] The other ends of the trickle charging unit, the constant current charging unit, and the constant voltage charging unit are all connected to one end of the charging switch unit, and the other end of the charging switch unit is used to connect to a target battery to be charged; the other end of the charging switch unit is further connected to the input end of the collection unit, and the output end of the collection unit is connected to the controller;

[0047] The controller is further connected to the control ends of the charging switch unit, the switching switch unit, the trickle charging unit, the constant current charging unit, and the constant voltage charging unit, and the controller is configured to execute the soft start charging control method according to any one of the first aspects above.

[0048] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, it implements the soft start charging control method according to any one of the first aspects.

[0049] Compared with the prior art, the present application has the following beneficial effects:

[0050] Embodiments of the present application provide a soft - start charging control method, device, charging device, and storage medium, which are applied to a controller in a charging device. The method includes: after detecting that a target battery is connected, obtaining the initial battery voltage of the target battery; determining, according to the initial battery voltage of the target battery, that the charging mode corresponding to the initial battery voltage is the initial charging mode; adjusting the charging voltage of the initial charging unit corresponding to the initial charging mode in the charging device according to the initial battery voltage and a preset pressure difference, so that the adjusted charging voltage is higher than the initial battery voltage, and the difference between the adjusted charging voltage and the initial battery voltage is the preset pressure difference; adjusting the charging current of the initial charging unit to a preset minimum charging current value; controlling the charging switch unit in the charging device to close, so that the initial charging unit first charges the target battery based on the adjusted charging voltage and the preset minimum charging current value; if it is detected that the inrush current value of the charging switch unit meets a preset stability condition, adjusting the charging parameters of the initial charging unit to the initial preset charging parameters corresponding to the initial charging mode, so that the initial charging unit continues to charge the target battery based on the initial preset charging parameters. Thus, the present application can set a preset pressure difference higher than the initial battery voltage for the access charging voltage of the target battery through the controller, and set a preset minimum charging current value, thereby reducing the inrush current value generated at the moment when the charging switch unit is turned on, avoiding the charging device connected to the target battery from being burned, and charging the target battery after the inrush current value of the charging switch unit meets the preset stability condition to ensure the safe charging of the target battery, thereby improving the safety and reliability of the charging device. At the same time, the charging switch unit provided by the present application does not need to limit the specifications of the charging switch unit, thereby reducing the cost of the charging device. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0052] Figure 1 It is a schematic structural diagram of a charging device provided by an embodiment of the present application;

[0053] Figure 2 It is a schematic structural diagram of a controller of a charging device provided by an embodiment of the present application;

[0054] Figure 3 It is a flowchart of a soft - start charging control method provided by an embodiment of the present application Figure 1 ;

[0055] Figure 4Flow schematic of a soft start charging control method provided by an embodiment of the present application Figure 2 ;

[0056] Figure 5 Flow schematic of a soft start charging control method provided by an embodiment of the present application Figure 3 ;

[0057] Figure 6 Flow schematic of a soft start charging control method provided by an embodiment of the present application Figure 4 ;

[0058] Figure 7 Flow schematic of a soft start charging control method provided by an embodiment of the present application Figure 5 ;

[0059] Figure 8 Structural schematic diagram of a soft start charging control device provided by an embodiment of the present application. Detailed implementation manners

[0060] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. The components of the embodiments of the present application usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0061] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application claimed, but merely represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts fall within the scope of protection of the present application.

[0062] It should be noted that: like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0063] In the description of the present application, it should be noted that if terms such as "upper", "lower", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship when the inventive product is normally placed. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present application.

[0064] In addition, terms such as "first" and "second" are only used for distinguishing descriptions and cannot be construed as indicating or implying relative importance.

[0065] It should be noted that, without conflict, the features in the embodiments of the present application can be combined with each other.

[0066] To clearly describe a soft start charging control method, device, charging device and storage medium provided by the embodiments of the present application, the charging device will be described in detail with reference to the accompanying drawings first. Figure 1 The following is a schematic structural diagram of a charging device provided by an embodiment of the present application. As Figure 1 shown, the charging device 100 may include: a controller 110, a switching switch unit 120, a trickle charging unit 130, a constant current charging unit 140, a constant voltage charging unit 150, a charging switch unit 160, and a collection unit 170.

[0067] Among them, one end of the switching switch unit 120 is respectively connected to one end of the trickle charging unit 130, the constant current charging unit 140, and the constant voltage charging unit 150, so as to switch the corresponding charging unit (such as the trickle charging unit 130, the constant current charging unit 140, and the constant voltage charging unit 150) according to the electrical signal (such as voltage or current) state of the target battery to be charged; the other end of the switching switch unit 120 is also connected to a preset power supply unit to supply power to the charging device 100 according to the preset power supply unit, where the preset power supply unit can be selected according to actual conditions. The other ends of the trickle charging unit 130, the constant current charging unit 140, and the constant voltage charging unit 150 are all connected to one end of the charging switch unit 160, and the other end of the charging switch unit 160 is used to connect to the target battery to be charged, so as to control the charging unit (such as the trickle charging unit 130, the constant current charging unit 140, and the constant voltage charging unit 150) to charge the target battery to be charged through the closing and opening of the charging switch unit 160; the other end of the charging switch unit 160 is also connected to the input end of the collection unit 170, and the output end of the collection unit 170 is connected to the controller 110 to collect the electrical signals of the input and output of the charging switch unit 160 in real time, and then control the controller 110 according to the electrical signals; the controller 110 is also connected to the control ends of the charging switch unit 160, the switching switch unit 120, the trickle charging unit 130, the constant current charging unit 140, and the constant voltage charging unit 150 to control the charging unit (such as the trickle charging unit 130, the constant current charging unit 140, and the constant voltage charging unit 150) to charge the target battery to be charged according to the electrical signals input to the controller 110.

[0068] Among them, the controller 110 is used to execute the soft-start charging control method. The trickle charging unit 130 is used to charge the target battery to be charged in the trickle charging mode. The constant current charging unit 140 is used to charge the target battery to be charged in the constant current charging mode; the constant voltage charging unit 150 is used to charge the target battery to be charged in the constant voltage charging mode. The acquisition unit 170 is used to collect in real time the electrical signals input and output by the charging switch unit 160 during the charging process of the target battery to be charged.

[0069] The charging switch unit 160 is a switching tube used to control the charging unit to charge the target battery to be charged. The charging switch unit 160 can be selected according to the actual situation. For example, the charging switch unit 160 can be selected as an N-type MOS tube.

[0070] It should be noted that the target battery to be charged provided in the embodiment of the present application can be selected according to the actual situation. For example, the target battery to be charged can be selected as a lithium battery pack, and the charging device can be understood as a charger, for example.

[0071] In a possible implementation manner, when the target battery to be charged needs to be charged, it is connected to one end of the charging switch unit 160 (such as Figure 3 the position shown), after the controller 110 detects the connection of the target battery, it determines the electrical signal state of the current target battery according to the current electrical signal (such as voltage) of the target battery. Then, the controller 110 dynamically adjusts its own charging electrical signal (such as voltage and current) according to the electrical signal state of the current target battery, and controls the switching switch unit 120 to switch to the corresponding charging unit (such as the trickle charging unit 130 or the constant current charging unit 140 or the constant voltage charging unit 150), and controls to turn on the charging switch unit 160, and then charges the target battery through the turned-on charging switch unit 160.

[0072] When the charging of the target battery to be charged is completed or when charging is not required, it is necessary to disconnect the connection between the target battery and the charging switch unit 160, and the controller 110 first controls the charging switch unit 160 to be disconnected, and then controls the charging unit (such as the trickle charging unit 130 or the constant current charging unit 140 or the constant voltage charging unit 150) to be disconnected, thereby ending the charging process of the target battery to be charged.

[0073] The charging device provided by the embodiment of the present application includes: a controller, a switching switch unit, a trickle charging unit, a constant current charging unit, a constant voltage charging unit, a charging switch unit, and a collection unit. Among them, one end of the switching switch unit is respectively connected to the trickle charging unit, the constant current charging unit, and the constant voltage charging unit; the other ends of the trickle charging unit, the constant current charging unit, and the constant voltage charging unit are all connected to one end of the charging switch unit, and the other end of the charging switch unit is used to connect to the target battery to be charged; the other end of the charging switch unit is also connected to the input end of the collection unit, and the output end of the collection unit is connected to the controller; the controller is also connected to the control ends of the charging switch unit, the switching switch unit, the trickle charging unit, the constant current charging unit, and the constant voltage charging unit, and the controller is used to execute the soft start charging control method. Thus, the present application can control the switching of the charging unit (such as the trickle charging unit, the constant current charging unit, and the constant voltage charging unit) by the controller through the switching switch unit, and the control of the charging switch unit, so as to realize the charging process of the target battery to be charged.

[0074] Further, to clearly describe the charging device 100 provided in the above embodiment, the present application also provides a schematic structural diagram of a controller 110. Figure 2 It is a schematic structural diagram of a controller of a charging device provided by an embodiment of the present application. As Figure 2 shown, the controller 110 of the charging device may include: a processor 111 and a memory 112.

[0075] Among them, the memory 112 stores machine-executable instructions that can be executed by the processor 111, that is, when the master station device 110 runs, the above-mentioned machine-readable instructions are executed, and the processor 111 communicates with the memory 112 through a bus. The processor 111 can execute the machine-executable instructions to implement the soft start charging control method.

[0076] Among them, each element of the memory 112, the processor 111, and the bus is directly or indirectly electrically connected to realize data transmission or interaction. For example, these elements can be electrically connected to each other through one or more communication buses or signal lines. The removable storage device includes at least one software function module that can be stored in the memory 112 in the form of software or firmware or solidified in the operating system (OS) of the electronic device. The processor 111 is used to execute the executable module stored in the memory 112, such as the software function module and computer program included in the soft start charging control method of the removable storage medium.

[0077] Among them, the memory 112 may be, but is not limited to, a Random Access Memory (RAM), a Read Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electric Erasable Programmable Read-Only Memory (EEPROM), etc.

[0078] The soft start charging control method provided by the embodiments of the present application may be executed by a processor in the controller 110 of the charging device 100. The following will continue to explain and illustrate in detail the soft start charging control method provided by the above embodiments of the present application with reference to the accompanying drawings. The following will continue to explain the soft start charging control method provided by the embodiments of the present application. Figure 3 Flow schematic of a soft start charging control method provided by an embodiment of the present application Figure 1 . As Figure 3 shown, applied to the controller in the charging device, the method may include:

[0079] S201. After detecting the access of the target battery, obtain the initial battery voltage of the target battery.

[0080] In a possible implementation manner, when the controller detects the access of the target battery, the soft start charging control method provided by the present application enters the stop charging waiting stage. In this stop charging waiting stage, according to the currently accessed target battery, the acquisition unit obtains the initial battery voltage V 初 of the target battery and uploads it to the controller, so that the controller dynamically adjusts its own charging electrical signals (such as voltage and current) according to the initial battery voltage V 初 .

[0081] S202. According to the initial battery voltage of the target battery, determine that the charging mode corresponding to the initial battery voltage is the initial charging mode.

[0082] In a possible implementation manner, according to the above-obtained initial battery voltage V 初 of the target battery, the controller determines the initial charging mode (such as trickle charging mode, constant current charging mode, and constant voltage charging mode) of the target battery according to the initial battery voltage V 初 . Specifically, it is mainly to compare the initial battery voltage V 初 with the preset voltages in each charging mode to see the initial battery voltage V 初Whether the preset voltage in each charging mode is reached, so as to determine the initial charging mode of the target battery.

[0083] S203. According to the initial battery voltage and the preset pressure difference, adjust the charging voltage of the initial charging unit corresponding to the initial charging mode in the charging device, so that the adjusted charging voltage is higher than the initial battery voltage, and the difference between the adjusted charging voltage and the initial battery voltage is the preset pressure difference.

[0084] Among them, the preset pressure difference ΔV is the difference between the adjusted charging voltage and the initial battery voltage V 初 . This preset pressure difference ΔV can be selected according to the actual situation. For example, this preset pressure difference ΔV can be selected as 0.3V.

[0085] In a possible implementation manner, after determining the initial charging mode of the target battery, enter the soft start charging control. First, the controller adjusts the charging voltage of the initial charging unit corresponding to the initial charging mode in the charging device according to the initial battery voltage V 初 and the preset pressure difference ΔV, so that the adjusted charging voltage is higher than the initial battery voltage V 初 , and the difference between the adjusted charging voltage and the initial battery voltage V 初 is the preset pressure difference ΔV, so as to avoid that when the target battery starts charging, due to the conduction of the charging switch unit, the initial charging unit corresponding to the initial charging mode discharges through the conduction of the charging switch unit, and then a surge current is generated on the target battery through the charging switch unit, thereby damaging the charging device connected to the target battery. If the charging voltage of the initial charging unit corresponding to the initial charging mode is higher than the initial battery voltage V 初 by the preset pressure difference ΔV, then when the initial charging unit corresponding to the initial charging mode discharges through the conduction of the charging switch unit, the surge current generated on the target battery through the charging switch unit can be reduced.

[0086] S204. Adjust the charging current of the initial charging unit to the preset minimum charging current value.

[0087] In a possible implementation manner, after adjusting the charging voltage of the initial charging unit corresponding to the initial charging mode in the charging device according to the initial battery voltage V 初 of the target battery, it is also necessary to adjust the charging current of the initial charging unit so that the charging current of this initial charging unit can be reduced to the lowest level, so that when the target battery starts charging, the charging switch unit is in the on state, and the initial charging unit corresponding to the initial charging mode discharges through the conduction of the charging switch unit, thereby reducing the surge current generated by the charging switch unit.

[0088] Among them, the preset minimum charging current value can be selected according to the charging accuracy of the charging device according to the actual situation. For example, the preset minimum charging current value can be selected as 50 mA.

[0089] S205. Control the charging switch unit in the charging device to close, so that the initial charging unit first charges the target battery based on the adjusted charging voltage and the preset minimum charging current value.

[0090] In a possible implementation manner, control the charging switch unit in the charging device to close, so that the initial charging unit first charges the target battery based on the adjusted charging voltage and the preset minimum charging current value, to prevent the charging device connected to the target battery from being damaged due to excessive inrush current generated by the closing of the charging switch unit.

[0091] S206. If it is detected that the inrush current value of the charging switch unit meets the preset stability condition, adjust the charging parameters of the initial charging unit to the initial preset charging parameters corresponding to the initial charging mode, so that the initial charging unit continues to charge the target battery based on the initial preset charging parameters.

[0092] Among them, the preset stability condition can represent the change difference between the current value at the first preset moment after the charging switch unit is closed and the current value at the second preset moment after the closing. When the change between the current value at the first preset moment after the charging switch unit is closed and the current value at the second preset moment after the closing is basically 0, it can be indicated that the inrush current value generated after the charging switch unit is closed meets the preset stability condition.

[0093] In a possible implementation manner, if the controller detects through the acquisition unit that the inrush current value of the charging switch unit meets the preset stability condition, adjust the charging parameters of the initial charging unit to the initial preset charging parameters corresponding to the initial charging mode, so that the initial charging unit continues to charge the target battery based on the initial preset charging parameters.

[0094] An embodiment of the present application provides a soft - start charging control method. After detecting the access of the target battery, the initial battery voltage of the target battery is obtained; according to the initial battery voltage of the target battery, the charging mode corresponding to the initial battery voltage is determined as the initial charging mode; according to the initial battery voltage and a preset pressure difference, the charging voltage of the initial charging unit corresponding to the initial charging mode in the charging device is adjusted so that the adjusted charging voltage is higher than the initial battery voltage, and the difference between the adjusted charging voltage and the initial battery voltage is the preset pressure difference; the charging current of the initial charging unit is adjusted to a preset minimum charging current value; the charging switch unit in the charging device is controlled to close so that the initial charging unit first charges the target battery based on the adjusted charging voltage and the preset minimum charging current value; if it is detected that the surge current value of the charging switch unit meets the preset stability condition, the charging parameters of the initial charging unit are adjusted to the initial preset charging parameters corresponding to the initial charging mode so that the initial charging unit continues to charge the target battery based on the initial preset charging parameters. Thus, the present application can set a preset pressure difference higher than the initial battery voltage for the access charging voltage of the target battery through the controller, and set a preset minimum charging current value, thereby reducing the surge current value generated at the moment when the charging switch unit is turned on, avoiding the charging device connected to the target battery from being burned out, and charging the target battery after the surge current value of the charging switch unit meets the preset stability condition to ensure the safe charging of the target battery, thereby improving the safety and reliability of the charging device. At the same time, the charging switch unit provided by the present application does not need to limit the specification of the charging switch unit, thereby reducing the cost of the charging device.

[0095] Based on Figure 3 the above, the soft - start charging control method provided in the above - mentioned embodiment of the present application will be further explained and described in detail with reference to the accompanying drawings as follows. Figure 4 The flow diagram of a soft - start charging control method provided in an embodiment of the present application Figure 2 As Figure 4 shown, the above - mentioned soft - start charging control method may further include:

[0096] S301. Obtain the current battery voltage of the target battery in the initial charging mode.

[0097] In a possible implementation manner, the current battery voltage V 当 of the target battery in the initial charging mode is obtained according to the acquisition unit and uploaded to the controller, so that the controller dynamically adjusts its own charging electrical signals (such as voltage and current) according to the current battery voltage V 当 in the initial charging mode.

[0098] S302. Determine whether the target battery reaches the switching trigger condition of the target charging mode according to the current battery voltage.

[0099] In a possible implementation manner, based on the currently obtained battery voltage V of the target battery 当 , the controller determines whether the target battery reaches the switching trigger condition of the target charging mode according to the currently obtained battery voltage V 当 . The switching trigger condition is determined based on the magnitude relationship between the currently obtained battery voltage V 当 and the preset voltages in the charging modes corresponding to the respective charging units (such as the trickle charging mode, the constant current charging mode, and the constant voltage charging mode). If the currently obtained battery voltage V 当 reaches the preset voltages in the charging modes corresponding to the respective charging units (such as the trickle charging mode, the constant current charging mode, and the constant voltage charging mode), it means that the target battery reaches the switching trigger condition of the target charging mode; if the currently obtained battery voltage V 当 does not reach the preset voltages in the charging modes corresponding to the respective charging units (such as the trickle charging mode, the constant current charging mode, and the constant voltage charging mode), it means that the target battery does not reach the switching trigger condition of the target charging mode, and then continue to charge according to the current charging mode of the target battery so that the currently obtained battery voltage V of the target battery 当 can reach the switching trigger condition of the target charging mode, and then, according to the magnitude relationship between the currently obtained battery voltage V 当 and the preset voltages in the charging modes corresponding to the respective charging units (such as the trickle charging mode, the constant current charging mode, and the constant voltage charging mode), switch to the corresponding charging mode to charge the target battery.

[0100] S303. If the target battery meets the switching trigger condition, gradually adjust the charging parameters of the target charging unit corresponding to the target charging mode in the charging device to the target preset charging parameters of the target charging mode, so that the target charging unit charges the target battery based on the gradually adjusted target preset charging parameters.

[0101] In a possible implementation manner, if the target battery meets the switching trigger condition, the charging parameters of the target charging unit corresponding to the charging mode in the charging device can be gradually adjusted to the target preset charging parameters corresponding to the new target charging mode after meeting the switching trigger condition, so that the target charging unit charges the target battery based on the gradually adjusted target preset charging parameters. The target preset charging parameters can be determined according to the actual situation of the target charging mode, which is not limited here.

[0102] Embodiments of the present application provide a soft - start charging control method. Among them, the soft - start charging control method may further include obtaining the current battery voltage of the target battery in the initial charging mode; determining whether the target battery reaches the switching trigger condition of the target charging mode according to the current battery voltage; if the target battery meets the switching trigger condition, gradually adjusting the charging parameters of the target charging unit corresponding to the target charging mode in the charging device to the target preset charging parameters of the target charging mode, so that the target charging unit charges the target battery based on the gradually adjusted charging parameters. Thus, the present application can, based on whether the current battery voltage of the target battery in the initial charging mode reaches the switching trigger condition of the target charging mode, then switch the corresponding target charging mode according to the switching switch unit, and then charge the target battery according to the target preset charging parameters corresponding to the new target charging mode, so as to improve the reliability of the charging device.

[0103] Optionally, in a possible implementation embodiment, the soft - start charging control method may further include:

[0104] If it is detected that the target battery is disconnected from the access connection, control the charging switch unit to disconnect immediately.

[0105] In a possible implementation manner, when the controller detects that the target battery is disconnected from the charging switch unit, the controller immediately controls the charging switch unit to disconnect and clears all the setting data in the charging device after disconnection.

[0106] It should be noted that if the disconnected target battery is inserted into the charging device again, it is possible to start adjusting the charging voltage and charging current of the initial charging unit corresponding to the initial charging mode in the charging device according to the initial battery voltage V of the target battery inserted again, so as to ensure that when the target battery is inserted into the charging device again, the inrush current generated by the closing of the charging switch unit is reduced, and further the oscillation of the charging unit in the charging device caused by the inrush current is reduced. 初

[0107] Figure 3 On the basis of Figure 5 as follows, the soft - start charging control method provided in the above - mentioned embodiments of the present application will be further explained and described in detail with reference to the accompanying drawings. Figure 5 Flow schematic of a soft - start charging control method provided by an embodiment of the present application Figure 3 . As Figure 5 shown, the soft - start charging control method may further include:

[0108] S401. If it is detected that the current battery voltage of the target battery reaches the preset full voltage, detect the charging current of the target battery.

[0109] In a possible implementation manner, if it is detected that the current battery voltage V of the target battery 当When the preset full voltage is reached, in order to ensure the charging accuracy of the target battery, when the current battery voltage reaches the preset full voltage, the charging current of the target battery needs to be collected by the collection unit, uploaded to the controller, and it is judged whether the target battery is fully charged according to the obtained charging current at this time.

[0110] Among them, the preset full voltage can be selected according to the actual situation of the target battery. For example, the preset full voltage can be selected as 4.2V.

[0111] S402. If the charging current is less than the preset current value, control the charging switch unit to disconnect.

[0112] Among them, the preset current value is greater than the preset trickle value and less than the preset maximum current value. The preset trickle value is the constant current value in the trickle charging mode and can be selected according to the actual situation of the target battery. For example, the preset trickle value can be selected as 100mA. The preset maximum current value is the constant current value in the constant current charging mode and can be selected according to the actual situation of the target battery. For example, the preset maximum current value can be selected as 200mA. The preset current value can be selected according to the actual situation of the target battery. For example, the preset current value can be selected as 150mA.

[0113] In a possible implementation manner, if the charging current detected by the controller is less than the preset current value (such as 150mA), it can be determined that the target battery is fully charged, the target battery can be pulled out, and the charging switch unit is controlled to disconnect; if after the current battery voltage of the target battery reaches the preset full voltage, the charging current of the target battery is not less than the preset current value, control the target battery to continue charging the target battery in the current target charging mode until the charging current collected by the collection unit is less than the preset current value, and then control the charging switch unit to disconnect.

[0114] An embodiment of the present application provides a soft start charging control method. Among them, the above soft start charging control method may further include: if it is detected that the current battery voltage of the target battery reaches the preset full voltage, detect the charging current of the target battery; if the charging current is less than the preset current value, control the charging switch unit to disconnect, where the preset current value is greater than the preset trickle value and less than the preset maximum current value. Thus, the present application can detect whether the charging current of the target battery is less than the preset current value according to the current battery voltage of the target battery reaching the preset full voltage, and when the charging current of the target battery is less than the preset current value, control the charging switch unit to disconnect to indicate that the charging of the target battery is completed, thereby improving the safety and reliability of the charging device.

[0115] Optionally, in a possible implementation embodiment, in the above method, determining the charging mode corresponding to the initial battery voltage as the initial charging mode according to the initial battery voltage of the target battery may include:

[0116] If the initial battery voltage is less than the first preset voltage value, it is determined that the initial charging mode is the trickle charging mode. Correspondingly, the initial preset charging parameter is the preset trickle value.

[0117] In a possible implementation, if the initial battery voltage V 初 is less than the first preset voltage value, it is determined that the initial charging mode of the target battery is the trickle charging mode. Correspondingly, the initial preset charging parameter of the target battery is the preset trickle value. Among them, the first preset voltage value V 第一预设 is the maximum limit voltage value set for the charging mode of trickle charging mode, that is, the current battery voltage V 当 of the target battery is less than this first preset voltage value V 第一预设 , which indicates that the current charging mode of the target battery is the trickle charging mode; if the current battery voltage V 当 of the target battery is greater than or equal to this first preset voltage value V 第一预设 , it indicates that the current charging mode of the target battery is not the trickle charging mode. This first preset voltage value V 第一预设 can be selected according to the actual situation. For example, this first preset voltage value V 第一预设 can be selected as 3V.

[0118] In a possible implementation example, in the above method, according to the current battery voltage, determining whether the target battery reaches the switching trigger condition of the target charging mode may include:

[0119] If the current battery voltage is greater than or equal to the first preset voltage value, it is determined that the target charging mode is the constant current charging mode, and the target battery reaches the switching trigger condition of the constant current charging mode. Correspondingly, the target charging parameter is the preset maximum current value.

[0120] In a possible implementation, if the current battery voltage V 当 of the target battery is greater than or equal to the first preset voltage value V 第一预设 , and since the charging mode of the charging device for the target battery starts from the trickle charging mode, the charging mode of the charging device is a fixed charging mode switching sequence. For example, when the target battery starts from the trickle charging mode, it will switch to the constant current charging mode after the trickle charging mode ends, and after the constant current charging mode ends, it will enter the constant voltage charging mode for charging until the charging of the target battery is in a full charge state, and then the charging of the target battery is ended. If the target battery starts charging from the constant current charging mode, correspondingly, after the constant current charging mode ends, it will enter the constant voltage charging mode for charging until the charging of the target battery is in a full charge state, and then the charging of the target battery is ended.

[0121] Further, when the previous state of the charging mode of the target battery is the trickle charging mode, then when the current battery voltage V of the target battery 当 is greater than or equal to the first preset voltage value V 第一预设 , the target battery reaches the switching trigger condition of the constant current charging mode, and then it can be determined that the current target charging mode of the target battery is the constant current charging mode. Correspondingly, the target charging parameter corresponding to the constant current charging mode is the preset maximum current value (such as 200 mA).

[0122] In a possible implementation embodiment, in the above method, gradually adjusting the charging parameter of the target charging unit corresponding to the target charging mode in the charging device to the target preset charging parameter of the target charging mode, so that the target charging unit charges the target battery based on the gradually adjusted charging parameter, may include:

[0123] Gradually adjusting the charging current of the target charging unit to the preset target maximum current value, so that the target charging unit charges the target battery based on the gradually adjusted charging current.

[0124] In a possible implementation manner, after the target battery is connected to the charging device, according to the target charging unit of the currently selected charging device, according to the detected current charging current corresponding to the current target battery, the charging current of the target charging mode corresponding to the target charging unit selected by the target battery is gradually adjusted to the preset maximum current value at a preset duty ratio, so that the target charging unit charges the target battery based on the gradually adjusted charging current (such as the preset target maximum current value).

[0125] Among them, the preset duty ratio can be selected according to the actual situation of the target battery. For example, the preset duty ratio can be selected as 10%. The preset target maximum current value is the maximum current value corresponding to the target charging mode of the target charging unit selected by the current target battery. For example, if the target charging mode of the target charging unit selected by the current target battery is the trickle charging mode, then the maximum current value corresponding to the trickle charging mode is the preset trickle value (such as 100 mA); if the target charging mode of the target charging unit selected by the current target battery is the constant current charging mode, then the maximum current value corresponding to the constant current charging mode is the preset maximum current value (such as 200 mA). The preset target maximum current value can be selected according to the actual situation and is not limited here.

[0126] An embodiment of the present application provides a soft - start charging control method. In this method, according to the initial battery voltage of the target battery, determining the charging mode corresponding to the initial battery voltage as the initial charging mode includes: if the initial battery voltage is less than the first preset voltage value, determining the initial charging mode as the trickle - charging mode, and correspondingly, the initial preset charging parameter is the preset trickle value; according to the current battery voltage, determining whether the target battery reaches the switching trigger condition of the target charging mode includes: if the current battery voltage is greater than or equal to the first preset voltage value, determining the target charging mode as the constant - current charging mode, and the target battery reaches the switching trigger condition of the constant - current charging mode, and correspondingly, the target charging parameter is the preset maximum current value; gradually adjusting the charging parameter of the target charging unit corresponding to the target charging mode in the charging device to the target preset charging parameter of the target charging mode, so that the target charging unit charges the target battery based on the gradually adjusted charging parameter, including: gradually adjusting the charging current of the target charging unit to the preset maximum current value, so that the target charging unit charges the target battery based on the gradually adjusted charging current. Thus, the present application can, based on the relationship between the initial battery voltage of the target battery and the first preset voltage value, further determine the target charging unit of the target battery, and then, according to the charging current of the target charging mode corresponding to the target charging unit, gradually adjust the charging current of the target charging unit to the preset target maximum current value according to the preset duty ratio, so as to charge the target battery according to the preset target maximum current value, thereby improving the reliability of the charging device, and when the charging current is gradually adjusted to the preset target maximum current value corresponding to the constant - voltage charging mode, reducing the inrush current caused by the rapid rise of the charging current, and further improving the safety of the charging device.

[0127] Based on the above, the soft - start charging control method provided in the above - mentioned embodiment of the present application will be further explained and described in detail with reference to the accompanying drawings as follows. Figure 3 On this basis, the soft - start charging control method provided in the above - mentioned embodiment of the present application will be further explained and described in detail with reference to the accompanying drawings as follows. Figure 6 It is a flowchart of a soft - start charging control method provided by an embodiment of the present application Figure 4 As Figure 6 shown, the above - mentioned soft - start charging control method may further include:

[0128] S501. If the currently detected battery voltage of the target battery is greater than or equal to the second preset voltage value, it is determined that the target battery reaches the switching trigger condition of the constant - voltage charging mode.

[0129] Among them, the second preset voltage value V 第二预设 is greater than the first preset voltage value V 第一预设 . This second preset voltage value V 第二预设 can be selected according to the actual situation. For example, this second preset voltage value V 第二预设 can be selected as 4V.

[0130] In a possible implementation manner, if the current battery voltage V of the detected target battery 当 is greater than or equal to the second preset voltage value V 第二预设 (such as 4V), it can be determined that the target battery reaches the switching trigger condition of the constant voltage charging mode, and then the target charging mode of the target battery is switched to the constant voltage charging mode, and the target battery continues to be charged.

[0131] S502. Gradually adjust the charging voltage of the constant voltage charging unit in the constant voltage charging mode of the charging device to the preset maximum voltage value corresponding to the constant voltage charging mode, so that the constant voltage charging unit charges the target battery based on the gradually adjusted charging voltage.

[0132] Wherein, the preset maximum voltage value can be selected according to the actual situation. For example, the preset maximum voltage value can be selected as 4.2V.

[0133] In a possible implementation manner, after the target battery is charged in the constant voltage charging mode, at this stage, as the current of the target battery gradually decreases, the charging voltage of the target battery gradually increases. At this time, the charging voltage of the constant voltage charging unit corresponding to the constant voltage charging mode in the charging device can be gradually adjusted to the preset maximum voltage value (such as 4.2V) corresponding to the constant voltage charging mode according to the preset duty ratio, so that the constant voltage charging unit charges the target battery based on the gradually adjusted charging voltage.

[0134] An embodiment of the present application provides a soft start charging control method. Among them, the above soft start charging control method may further include: if the current battery voltage of the detected target battery is greater than or equal to the second preset voltage value, it is determined that the target battery reaches the switching trigger condition of the constant voltage charging mode, where the second preset voltage value is greater than the first preset voltage value; gradually adjust the charging voltage of the constant voltage charging unit in the constant voltage charging mode of the charging device to the preset maximum voltage value corresponding to the constant voltage charging mode, so that the constant voltage charging unit charges the target battery based on the gradually adjusted charging voltage. Thus, the present application can switch the target charging mode of the target battery to the constant voltage charging mode according to the current battery voltage of the target battery being greater than or equal to the second preset voltage value, and after working in the constant voltage charging mode for a period of time, gradually adjust the charging voltage to the preset maximum voltage value corresponding to the constant voltage charging mode, and then charge the target battery based on the preset maximum voltage value, thereby improving the reliability of the charging device, and when the charging voltage is gradually adjusted to the preset maximum voltage value corresponding to the constant voltage charging mode, reducing the inrush current caused by the rapid rise of the charging voltage, and further improving the safety of the charging device.

[0135] Optionally, in a possible implementation embodiment, determining the charging mode corresponding to the initial battery voltage as the initial charging mode according to the initial battery voltage in the above method may include:

[0136] If the initial battery voltage is greater than or equal to the first preset voltage value, it is determined that the initial charging mode is the constant current charging mode. Correspondingly, the initial preset charging parameter is the preset maximum current value.

[0137] Wherein, the preset maximum current value is greater than the preset trickle value.

[0138] In a possible implementation manner, if the initial battery voltage V 初 is greater than or equal to the first preset voltage value V 第一预设 , it is determined that the initial charging mode of the target battery is the constant current charging mode. Then, when the switching trigger condition for the constant current charging mode is reached, the switching switch unit can switch the target charging mode of the target battery to the constant current charging mode. Correspondingly, the initial preset charging parameter of the target battery is the preset maximum current value (such as 200 mA) corresponding to the constant current charging mode.

[0139] In a possible implementation example, in the above method, determining whether the target battery reaches the switching trigger condition for the target charging mode according to the current battery voltage may include:

[0140] If the current battery voltage is greater than or equal to the second preset voltage value, it is determined that the target charging mode is the constant voltage charging mode, and the target battery reaches the switching trigger condition for the constant voltage charging mode. Correspondingly, the target preset charging parameter is the preset maximum voltage value.

[0141] In a possible implementation manner, if the initial battery voltage V 初 is greater than or equal to the second preset voltage value V 第二预设 , it is determined that the initial charging mode of the target battery is the constant voltage charging mode. Then, when the switching trigger condition for the constant voltage charging mode is reached, the switching switch unit can switch the target charging mode of the target battery to the constant voltage charging mode. Correspondingly, the initial preset charging parameter of the target battery is the preset maximum voltage value (such as 4 V) corresponding to the constant voltage charging mode.

[0142] In a possible implementation example, in the above method, gradually adjusting the charging parameter of the target charging unit corresponding to the target charging mode in the charging device to the target preset charging parameter of the target charging mode, so that the target charging unit charges the target battery based on the gradually adjusted charging parameter, may include:

[0143] Gradually adjusting the charging voltage of the target charging unit to the preset maximum voltage value, so that the target charging unit charges the target battery based on the gradually adjusted charging voltage.

[0144] In a possible implementation manner, after the target battery is connected to the charging device, according to the target charging unit of the currently selected charging device, based on the detected current charging voltage corresponding to the current target battery, the charging voltage of the target charging mode corresponding to the target charging unit selected according to the target battery is gradually adjusted to the preset maximum voltage value at a preset duty ratio. Furthermore, the target charging unit charges the target battery based on the gradually adjusted charging electrical parameters (such as the preset maximum voltage value).

[0145] Embodiments of the present application provide a soft-start charging control method. In this method, according to the initial battery voltage of the target battery, determining the charging mode corresponding to the initial battery voltage as the initial charging mode includes: if the initial battery voltage is greater than or equal to the first preset voltage value, determining the initial charging mode as the constant-current charging mode. Correspondingly, the initial preset charging parameter is the preset maximum current value, and the preset maximum current value is greater than the preset trickle value; determining whether the target battery reaches the switching trigger condition of the target charging mode according to the current battery voltage, including: if the current battery voltage is greater than or equal to the second preset voltage value, determining the target charging mode as the constant-voltage charging mode, and the target battery reaches the switching trigger condition of the constant-voltage charging mode. Correspondingly, the target preset charging parameter is the preset maximum voltage value; gradually adjusting the charging parameters of the target charging unit corresponding to the target charging mode in the charging device to the target preset charging parameters of the target charging mode, so that the target charging unit charges the target battery based on the gradually adjusted charging parameters, including: gradually adjusting the charging voltage of the target charging unit to the preset maximum voltage value, so that the target charging unit charges the target battery based on the gradually adjusted charging voltage. Thus, the present application can determine the target charging unit of the target battery based on the relationship between the initial battery voltage of the target battery and the first preset voltage value, and then gradually adjust the charging voltage of the target charging unit to the preset target maximum voltage value according to the charging voltage of the target charging mode corresponding to the target charging unit at a preset duty ratio to charge the target battery according to the preset target maximum voltage value, thereby improving the reliability of the charging device, and reducing the inrush current caused by the rapid rise of the charging current when the charging voltage is gradually adjusted to the preset maximum voltage value corresponding to the constant-voltage charging mode, thereby improving the safety of the charging device.

[0146] To facilitate the understanding of the above soft-start charging control method, embodiments of the present application also provide an example of the flow of a soft-start charging control method, which will be further described below in conjunction with the accompanying drawings. Figure 7 Schematic diagram of the flow of a soft-start charging control method provided by an embodiment of the present application Figure 5 As Figure 7 shown, the schematic diagram provided by the embodiment of the present application Figure 5 may include:

[0147] S601. Determine whether the target battery is connected to a charging device.

[0148] Specifically, determine whether the target battery is connected to a charging device. If so, execute step S602.

[0149] Specifically, according to the controller in the charging device, detect whether the target battery is connected to the charging device. If so, execute step S602.

[0150] S602. If the target battery is connected to the charging device, obtain the initial battery voltage of the target battery and determine the target charging mode of the target battery.

[0151] Specifically, after the controller detects that the target battery is connected, the acquisition unit can obtain the initial battery voltage V 初 of the target battery and upload it to the controller, so that the controller selects the target charging mode corresponding to the target battery according to the initial battery voltage V 初 .

[0152] S603. According to the initial battery voltage and the preset pressure difference, adjust the charging voltage of the initial charging unit corresponding to the initial charging mode in the charging device, so that the adjusted charging voltage is higher than the initial battery voltage by the preset pressure difference.

[0153] Specifically, according to the initial battery voltage V 初 and the preset pressure difference ΔV, adjust the charging voltage of the initial charging unit corresponding to the initial charging mode in the charging device, so that the adjusted charging voltage is higher than the initial battery voltage V 初 , and the difference between the adjusted charging voltage and the initial battery voltage V 初 is the preset pressure difference ΔV, to avoid that when the target battery starts charging, due to the conduction of the charging switch unit, the initial charging unit corresponding to the initial charging mode discharges through the conduction of the charging switch unit, and then a surge current is generated on the target battery through the charging switch unit, thereby damaging the charging device connected to the target battery. If the charging voltage of the initial charging unit corresponding to the initial charging mode is higher than the initial battery voltage V 初 by the preset pressure difference ΔV, then when the initial charging unit corresponding to the initial charging mode discharges through the conduction of the charging switch unit, the surge current generated on the target battery through the charging switch unit can be reduced.

[0154] S604. Control the charging switch unit in the charging device to close and wait for the surge current value of the charging switch unit to meet the preset stability condition.

[0155] Specifically, control the charging switch unit in the charging device to close, so that the initial charging unit first charges the target battery based on the adjusted charging voltage and the preset minimum charging current value, and collect the current value of the charging switch unit in real time according to the acquisition unit. When the change between the current value at the first preset moment after the charging switch unit is closed and the current value at the second preset moment after the charging switch unit is closed is basically 0, it can be indicated that the inrush current value generated after the charging switch unit is closed meets the preset stability condition, so as to prevent the charging device connected to the target battery from being damaged due to excessive inrush current generated by the closing of the charging switch unit.

[0156] S605. Gradually adjust the charging current of the target charging unit to the preset target maximum current value.

[0157] Specifically, after the target battery is connected to the charging device, according to the target charging unit of the currently selected charging device, based on the detected current charging current corresponding to the current target battery, and in accordance with the charging current of the target charging mode corresponding to the target charging unit selected by the target battery, gradually adjust it to the preset maximum current value at a preset duty ratio. Furthermore, enable the target charging unit to charge the target battery based on the gradually adjusted charging current (such as the preset target maximum current value).

[0158] S606. Gradually adjust the charging voltage of the target charging unit to the preset maximum voltage value.

[0159] Specifically, after the target battery is connected to the charging device, according to the target charging unit of the currently selected charging device, based on the detected current charging voltage corresponding to the current target battery, and in accordance with the charging voltage of the target charging mode corresponding to the target charging unit selected by the target battery, gradually adjust it to the preset maximum voltage value at a preset duty ratio. Furthermore, enable the target charging unit to charge the target battery based on the gradually adjusted charging voltage (such as the preset maximum voltage value).

[0160] It should be noted that if the controller detects that the target battery is disconnected during the charging process, immediately turn off the charging switch unit. When the target battery is inserted into the charging device again, restart the soft-start charging control method provided in the embodiments of the present application to ensure that when the target battery is inserted into the charging device again, the inrush current generated when the charging switch unit is turned off is reduced, and the post-stage power supply oscillation of the charging device caused by plugging and unplugging is reduced.

[0161] The soft - start charging control method provided by the embodiments of the present application determines whether the target battery is connected to the charging device. After detecting that the target battery is connected, it obtains the initial battery voltage of the target battery, determines the target charging mode of the target battery, and adjusts the charging voltage of the initial charging unit corresponding to the initial charging mode in the charging device according to the initial battery voltage and the preset pressure difference, so that the adjusted charging voltage is higher than the initial battery voltage by the preset pressure difference. Then, it controls the charging switch unit in the charging device to close and waits for the surge current value of the charging switch unit to meet the preset stable condition, and then controls the charging current of the target charging unit to be gradually adjusted to the preset target maximum current value, and controls the charging voltage of the target charging unit to be gradually adjusted to the preset maximum voltage value. Thus, the present application can set the charging voltage for the connected target battery by the controller to be higher than the initial battery voltage by the preset pressure difference and set the preset minimum charging current value, thereby reducing the surge current value generated at the moment when the charging switch unit is turned on, avoiding the charging device connected to the target battery from being burned out, and charging the target battery after the surge current value of the charging switch unit meets the preset stable condition to ensure the safe charging of the charging device connected to the target battery, thereby improving the safety and reliability of the charging device. At the same time, for the charging switch unit provided by the present application, there is no need to limit the specification of the charging switch unit, thereby reducing the cost of the charging device.

[0162] Based on the same inventive concept, an embodiment of the present application also provides a soft - start charging control device. Since the principle of the device in the embodiment of the present application for solving problems is similar to the above - mentioned soft - start charging control method in the embodiment of the present application, the implementation of the device can refer to the implementation of the method, and the repeated parts will not be described again.

[0163] Figure 8 It is a schematic structural diagram of a soft - start charging control device provided by an embodiment of the present application. As Figure 8 shown, for the controller applied to the charging device, the soft - start charging control device 70 may include:

[0164] An acquisition module 71, configured to obtain the initial battery voltage of the target battery after detecting that the target battery is connected;

[0165] A determination module 72, configured to determine, according to the initial battery voltage of the target battery, that the charging mode corresponding to the initial battery voltage is the initial charging mode;

[0166] A first adjustment module 73, configured to adjust the charging voltage of the initial charging unit corresponding to the initial charging mode in the charging device according to the initial battery voltage and the preset pressure difference, so that the adjusted charging voltage is higher than the initial battery voltage, and the difference between the adjusted charging voltage and the initial battery voltage is the preset pressure difference;

[0167] The second adjustment module 74 is used to adjust the charging current of the initial charging unit to a preset minimum charging current value;

[0168] The control module 75 is used to control the charging switch unit in the charging device to close, so that the initial charging unit first charges the target battery based on the adjusted charging voltage and the preset minimum charging current value;

[0169] The third adjustment module 76 is used to, if it is detected that the inrush current value of the charging switch meets the preset stability condition, adjust the charging parameters of the initial charging unit to the initial preset charging parameters corresponding to the initial charging mode, so that the initial charging unit continues to charge the target battery based on the initial preset charging parameters.

[0170] In an optional implementation manner, the soft-start charging control device 70 is further used to: obtain the current battery voltage of the target battery in the initial charging mode; determine whether the target battery reaches the switching trigger condition of the target charging mode according to the current battery voltage; if the target battery meets the switching trigger condition, gradually adjust the charging parameters of the target charging unit corresponding to the target charging mode in the charging device to the target preset charging parameters of the target charging mode, so that the target charging unit charges the target battery based on the gradually adjusted charging parameters.

[0171] In an optional implementation manner, the soft-start charging control device 70 is further used to: if it is detected that the target battery is disconnected from the connection, control the charging switch unit to immediately disconnect.

[0172] In an optional implementation manner, the soft-start charging control device 70 is further used to: if it is detected that the current battery voltage of the target battery reaches the preset full voltage, detect the charging current of the target battery; if the charging current is less than the preset current value, control the charging switch unit to disconnect, where the preset current value is greater than the preset trickle value and less than the preset maximum current value.

[0173] In an optional implementation manner, the soft-start charging control device 70 is specifically used to: if the initial battery voltage is less than the first preset voltage value, determine that the initial charging mode is the trickle charging mode, and correspondingly, the initial preset charging parameter is the preset trickle value.

[0174] In an optional implementation manner, the soft-start charging control device 70 is specifically used to: if the current battery voltage is greater than or equal to the first preset voltage value, determine that the target charging mode is the constant current charging mode, and the target battery reaches the switching trigger condition of the constant current charging mode, and correspondingly, the target charging parameter is the preset maximum current value.

[0175] In an alternative embodiment, the soft start charging control device 70 is specifically configured to: gradually adjust the charging current of the target charging unit to a preset maximum current value, so that the target charging unit charges the target battery based on the gradually adjusted charging current.

[0176] In an alternative embodiment, the soft start charging control device 70 is further configured to: if the current battery voltage of the target battery detected is greater than or equal to a second preset voltage value, determine that the target battery reaches the switching trigger condition for the constant voltage charging mode, where the second preset voltage value is greater than the first preset voltage value; gradually adjust the charging voltage of the constant voltage charging unit in the constant voltage charging mode in the charging device to the preset maximum voltage value corresponding to the constant voltage charging mode, so that the constant voltage charging unit charges the target battery based on the gradually adjusted charging voltage.

[0177] In an alternative embodiment, the soft start charging control device 70 is specifically configured to: if the initial battery voltage is greater than or equal to the first preset voltage value, determine that the initial charging mode is the constant current charging mode, and correspondingly, the initial preset charging parameter is the preset maximum current value, and the preset maximum current value is greater than the preset trickle value.

[0178] In an alternative embodiment, the soft start charging control device 70 is specifically configured to: if the current battery voltage is greater than or equal to the second preset voltage value, determine that the target charging mode is the constant voltage charging mode, and the target battery reaches the switching trigger condition for the constant voltage charging mode, and correspondingly, the target preset charging parameter is the preset maximum voltage value.

[0179] In an alternative embodiment, the soft start charging control device 70 is specifically configured to: gradually adjust the charging voltage of the target charging unit to a preset maximum voltage value, so that the target charging unit charges the target battery based on the gradually adjusted charging voltage.

[0180] It should be noted that for the details not disclosed in the soft start charging control device in the embodiments of the present application, please refer to the details disclosed in the soft start charging control method in the embodiments of the present application, and will not be elaborated here specifically.

[0181] The above modules may be one or more integrated circuits configured to implement the above methods. For example: one or more Application Specific Integrated Circuits (ASICs), or, one or more microprocessors, or, one or more Field Programmable Gate Arrays (FPGAs), etc. Again, when a certain module above is implemented in the form of a processing element scheduling program code, the processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processors that can call program code. Again, these modules may be integrated together and implemented in the form of a system-on-a-chip (SOC).

[0182] Optionally, an embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is run by a processor, the processor executes the steps of the soft start charging control method of the mobile storage medium in the above embodiment. The specific implementation manners and technical effects are similar and will not be elaborated here.

[0183] In several embodiments provided by the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces. The indirect couplings or communication connections of devices or units can be in electrical, mechanical or other forms.

[0184] The units described as separate components may or may not be physically separated. The components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0185] In addition, each functional unit in the various embodiments of the present application may be integrated in a processing unit, or each unit may exist physically separately, or two or more units may be integrated in one unit. The above integrated units may be implemented in the form of hardware, or in the form of a combination of hardware and software functional units.

[0186] The integrated units implemented in the form of software functional units can be stored in a computer-readable storage medium. The above-mentioned software functional units are stored in a storage medium and include several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (English: processor) to execute some steps of the methods described in various embodiments of the present application. The aforementioned storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memories (English: Read-Only Memory, abbreviated as: ROM), random access memories (English: Random Access Memory, abbreviated as: RAM), magnetic disks, or optical discs that can store program codes.

[0187] As described above, the above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A soft start charging control method, characterized in that, A controller applied to a charging device, the method includes: After detecting the access of the target battery, obtain the initial battery voltage of the target battery; According to the initial battery voltage of the target battery, determine that the charging mode corresponding to the initial battery voltage is the initial charging mode; According to the initial battery voltage and a preset voltage difference, adjust the charging voltage of the initial charging unit corresponding to the initial charging mode in the charging device, so that the adjusted charging voltage is higher than the initial battery voltage, and the difference between the adjusted charging voltage and the initial battery voltage is the preset voltage difference; Adjust the charging current of the initial charging unit to a preset minimum charging current value; Control the charging switch unit in the charging device to close, so that the initial charging unit first charges the target battery based on the adjusted charging voltage and the preset minimum charging current value; If it is detected that the inrush current value of the charging switch unit meets the preset stability condition, adjust the charging parameters of the initial charging unit to the initial preset charging parameters corresponding to the initial charging mode, so that the initial charging unit continues to charge the target battery based on the initial preset charging parameters.

2. The soft start charging control method according to claim 1, wherein, The method further includes: Obtain the current battery voltage of the target battery in the initial charging mode; According to the current battery voltage, determine whether the target battery reaches the switching trigger condition of the target charging mode; If the target battery meets the switching trigger condition, gradually adjust the charging parameters of the target charging unit corresponding to the target charging mode in the charging device to the target preset charging parameters of the target charging mode, so that the target charging unit charges the target battery based on the gradually adjusted target preset charging parameters.

3. The soft start charging control method according to claim 1, characterized in that, The method further includes: If it is detected that the target battery disconnects from the access connection, control the charging switch unit to disconnect immediately.

4. The soft start charging control method according to claim 1, characterized in that The method further includes: If it is detected that the current battery voltage of the target battery reaches the preset full voltage, detect the charging current of the target battery; If the charging current is less than the preset current value, control the charging switch unit to disconnect, where the preset current value is greater than the preset trickle value and less than the preset maximum current value.

5. The soft start charging control method according to claim 2, characterized in that The step of determining that the charging mode corresponding to the initial battery voltage is the initial charging mode according to the initial battery voltage of the target battery includes: If the initial battery voltage is less than the first preset voltage value, determine that the initial charging mode is the trickle charging mode, and correspondingly, the initial preset charging parameter is the preset trickle value; The step of determining whether the target battery reaches the switching trigger condition of the target charging mode according to the current battery voltage includes: If the current battery voltage is greater than or equal to the first preset voltage value, determine that the target charging mode is the constant current charging mode, and the target battery reaches the switching trigger condition of the constant current charging mode, and correspondingly, the target charging parameter is the preset maximum current value; Gradually adjusting the charging parameters of the target charging unit corresponding to the target charging mode in the charging device to the target preset charging parameters of the target charging mode, so that the target charging unit charges the target battery based on the gradually adjusted charging parameters, includes: Gradually adjusting the charging current of the target charging unit to the preset target maximum current value, so that the target charging unit charges the target battery based on the gradually adjusted charging current.

6. The soft start charging control method according to claim 5, characterized in that The method further includes: If the currently detected battery voltage of the target battery is greater than or equal to the second preset voltage value, it is determined that the target battery reaches the switching trigger condition of the constant voltage charging mode, where the second preset voltage value is greater than the first preset voltage value; Gradually adjusting the charging voltage of the constant voltage charging unit in the constant voltage charging mode in the charging device to the preset maximum voltage value corresponding to the constant voltage charging mode, so that the constant voltage charging unit charges the target battery based on the gradually adjusted charging voltage.

7. The soft start charging control method according to claim 2, characterized in that Determining the charging mode corresponding to the initial battery voltage as the initial charging mode according to the initial battery voltage of the target battery, includes: If the initial battery voltage is greater than or equal to the first preset voltage value, it is determined that the initial charging mode is the constant current charging mode. Correspondingly, the initial preset charging parameter is the preset maximum current value, and the preset maximum current value is greater than the preset trickle value; Determining whether the target battery reaches the switching trigger condition of the target charging mode according to the currently detected battery voltage, includes: If the currently detected battery voltage is greater than or equal to the second preset voltage value, it is determined that the target charging mode is the constant voltage charging mode, and the target battery reaches the switching trigger condition of the constant voltage charging mode. Correspondingly, the target preset charging parameter is the preset maximum voltage value; Gradually adjusting the charging parameters of the target charging unit corresponding to the target charging mode in the charging device to the target preset charging parameters of the target charging mode, so that the target charging unit charges the target battery based on the gradually adjusted charging parameters, includes: Gradually adjusting the charging voltage of the target charging unit to the preset maximum voltage value, so that the target charging unit charges the target battery based on the gradually adjusted charging voltage.

8. A soft start charging control device, characterized in that, Applied to the controller in the charging device, the device includes: An acquisition module, configured to acquire the initial battery voltage of the target battery after detecting that the target battery is connected; A determination module, configured to determine the charging mode corresponding to the initial battery voltage as the initial charging mode according to the initial battery voltage of the target battery; A first adjustment module, configured to adjust the charging voltage of the initial charging unit corresponding to the initial charging mode in the charging device according to the initial battery voltage and the preset pressure difference, so that the adjusted charging voltage is higher than the initial battery voltage, and the difference between the adjusted charging voltage and the initial battery voltage is the preset pressure difference; A second adjustment module, configured to adjust the charging current of the initial charging unit to the preset minimum charging current value; A control module, configured to control a charging switch unit in the charging device to close, so that the initial charging unit first charges the target battery based on the adjusted charging voltage and the preset minimum charging current value; A third adjustment module, configured to, if it is detected that the inrush current value of the charging switch meets a preset stability condition, adjust the charging parameters of the initial charging unit to the initial preset charging parameters corresponding to the initial charging mode, so that the initial charging unit continues to charge the target battery based on the initial preset charging parameters.

9. A charging device, characterized in that, The charging device includes: a controller, a switching switch unit, a trickle charging unit, a constant current charging unit, a constant voltage charging unit, a charging switch unit, and a collection unit. One end of the switching switch unit is respectively connected to one ends of the trickle charging unit, the constant current charging unit, and the constant voltage charging unit, and the other end of the switching switch unit is further connected to a preset power supply unit; The other ends of the trickle charging unit, the constant current charging unit, and the constant voltage charging unit are all connected to one end of the charging switch unit, and the other end of the charging switch unit is used to connect a target battery to be charged; the other end of the charging switch unit is further connected to the input end of the collection unit, and the output end of the collection unit is connected to the controller; The controller is further connected to the control ends of the charging switch unit, the switching switch unit, the trickle charging unit, the constant current charging unit, and the constant voltage charging unit, and the controller is configured to execute the soft start charging control method according to any one of claims 1-7 above.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the soft start charging control method according to any one of claims 1-7.

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