Power supply power distribution method and charging equipment

Abstract

The invention provides a fast charging processing method and device and a storage medium, and relates to the technical field of communication. The method comprises the steps that the method is applied to a charger comprising N (N is greater than or equal to 2) output ports, in each switching cycle period, each output port serves as a main output port in sequence according to a switching time interval, corresponding required first transmission power is preferentially distributed to the main output port, the other output ports except the main output port serve as auxiliary output ports, and the auxiliary output ports serve as auxiliary output ports; the switching cycle period includes M (M > = N) switching time intervals. According to the method, the situation that the high-power load cannot be charged due to the fact that the output port power is too low is avoided, and meanwhile the overall charging efficiency of the connected load is improved through dynamic distribution of the output port power of the charger.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a power distribution method and a charging device. Background Art

[0002] Chargers that comply with the USB PD3.1 protocol can achieve intelligent fast charging with an output voltage of 5-48V by communicating with the charged device and adjusting the output power. However, for multi-port chargers, there is the problem of how to distribute power among the multiple ports.

[0003] There are two main methods for solving the power distribution problem of multi-port chargers. One is the average distribution method, that is, each output port outputs a fixed power. However, when the rated charging power of the device is higher than the output capacity of a single output port, any output port of the charger with an average distribution design cannot power the device. Another method is to pre-set a certain output port as the main output port, and the remaining output ports are all auxiliary output ports. The main output port outputs a higher fixed power, and the auxiliary output ports output a lower fixed power.

[0004] If the output ports are allocated power in a fixed manner, the output capacity of the charger cannot be fully utilized. For example, when the rated charging power of the device is higher than the output capacity of any single output port, a charger designed with primary and secondary output ports or a charger that evenly distributes power can only rely on one output port to power the device, and the remaining output ports cannot be fully utilized, resulting in a waste of the power output capacity of the spare output ports.

[0005] The purpose of the present application is to more fully utilize the output capacity of the charger by dynamically allocating the output power of each output port. Summary of the invention

[0006] The present application provides a power distribution method and a charging device to solve the drawbacks of existing designs.

[0007] In a first aspect, the present application provides a power distribution method for a power supply, which is applied to a charger having N (N≥2) output ports, comprising:

[0008] In each switching cycle, each output port is used as the main output port in turn according to the switching time interval, and the main output port is preferentially allocated the corresponding required first transmission power. The remaining output ports except the main output port are used as secondary output ports. The switching cycle includes M (M≥N) switching time intervals.

[0009] In a possible design, an initial transmission power corresponding to each output port is set, and in the first switching cycle period of each charging process, each output port allocates power according to the initial transmission power.

[0010] In a possible design, at the end of each switching time interval, the actual draw power of the current main output port is obtained and stored;

[0011] The first transmission power of the output port corresponding to the current main output port in the next switching cycle is determined according to the current actual draw power.

[0012] In one possible design, the method further includes:

[0013] At the end of each switching cycle, it is determined whether the actual draw power of each output port is less than the average output power; wherein the average output power is the ratio of the total output power of the charger to the number of connected loads;

[0014] If the judgment result is yes, power is evenly distributed to all output ports, and the current switching cycle will be the last switching cycle;

[0015] If the judgment result is no, then enter the next switching cycle.

[0016] In a possible design, determining the first transmission power of the output port corresponding to the current main output port in the next switching cycle according to the current actual draw power includes:

[0017] The current actual draw-off power is used as the first transmission power of the output port corresponding to the current main output port in the next switching cycle, or,

[0018] The sum of the current actual draw power and the preset power added value is used as the first transmission power of the output port corresponding to the current main output port in the next switching cycle.

[0019] In one possible design, the method further includes:

[0020] The second transmission power to the Nth transmission power are determined by evenly distributing the power difference between the total output power and the first transmission power, or,

[0021] According to the power difference obtained by subtracting the first transmission power from the total output power, the second transmission power to the Nth transmission power are determined by allocating the power according to the ratio of the actual load extraction power in the previous switching cycle of each load.

[0022] In a second aspect, the present application provides a charging device, including:

[0023] Output ports, the number of which is N (N≥2);

[0024] The controller is used to use each output port as a main output port in turn according to the switching time interval in each switching cycle, preferentially allocate the corresponding required first transmission power to the main output port, and use the remaining output ports except the main output port as secondary output ports. The switching cycle includes M (M≥N) switching time intervals.

[0025] Preferably, the controller is specifically used for:

[0026] An initial transmission power corresponding to each output port is set, and in the first switching cycle period of each charging process, each output port allocates power according to the initial transmission power.

[0027] Preferably, the controller is specifically used for:

[0028] At the end of each switching time interval, the actual draw power of the current main output port is obtained and stored;

[0029] The first transmission power of the output port corresponding to the current main output port in the next switching cycle is determined according to the current actual draw power.

[0030] Furthermore, the controller is also used for:

[0031] At the end of each switching cycle, it is determined whether the actual draw power of each output port is less than the average output power; wherein the average output power is the ratio of the total output power of the charger to the number of connected loads;

[0032] If the judgment result is yes, power is evenly distributed to all output ports, and the current switching cycle will be the last switching cycle;

[0033] If the judgment result is no, then enter the next switching cycle.

[0034] Furthermore, the controller is also used for:

[0035] Determining the first transmission power of the output port corresponding to the current main output port in the next switching cycle according to the current actual draw power includes:

[0036] The current actual draw-off power is used as the first transmission power of the output port corresponding to the current main output port in the next switching cycle, or,

[0037] The sum of the current actual draw power and the preset power added value is used as the first transmission power of the output port corresponding to the current main output port in the next switching cycle.

[0038] Furthermore, the controller is also used for:

[0039] The second transmission power to the Nth transmission power are determined by evenly distributing the power difference between the total output power and the first transmission power, or,

[0040] According to the power difference obtained by subtracting the first transmission power from the total output power, the second transmission power to the Nth transmission power are determined by allocating the power according to the ratio of the actual load extraction power in the previous switching cycle of each load.

[0041] The power distribution method and charging device provided by the present application, by sequentially using each output port as the main output port according to the switching time interval in each switching cycle, preferentially allocating the first transmission power required for the main output port, and the remaining output ports except the main output port as auxiliary output ports, and the number of switching time intervals in the switching cycle is not less than the number of output ports. Compared with the prior art, the present application realizes dynamic adjustment of transmission power according to load conditions, fully utilizes the output capacity of the charger, and improves charging efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0043] Figure 1 A schematic diagram of an application scenario of power distribution provided in an embodiment of the present application;

[0044] Figure 2 Schematic diagram of the power distribution method provided in the embodiment of the present application Figure 1 ;

[0045] Figure 3 Schematic diagram of the power distribution method provided in the embodiment of the present application Figure 2 ;

[0046] Figure 4 Schematic diagram of the power distribution method provided in the embodiment of the present application Figure 3 . DETAILED DESCRIPTION

[0047] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation methods described in the following exemplary embodiments do not represent all implementation methods consistent with the present application. On the contrary, they are only examples of devices and methods consistent with some aspects of the present application, rather than all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0048] First, the relevant concepts or nouns involved in this application are explained:

[0049] USB PD3.1 protocol: refers to the fast charging protocol standard launched by the USB-IF Association in 2021. It further expands the power range based on USB PD3.0. In the USB PD 3.1 specification, the original USB PD3.0 content is classified into the standard power range (standard power rang, SPR), and the maximum power remains unchanged at 100W; at the same time, the extended power range (extended power rang, EPR) is added, and the maximum power is extended from 100W to 240W. In EPR, a variety of fixed voltage ranges and adjustable voltage ranges are added to meet the charging needs of different devices.

[0050] For example, when a 60W charger that complies with USB PD3.1 is connected to a laptop to be charged, the charger outputs 5V by default and broadcasts through the USB pin, announcing that its maximum output power capability is 20V-3.25A. After the laptop to be charged receives the broadcast power, it will give a handshake signal, and the charger will adjust the output voltage to 20V, and both the charger and the laptop to be charged will control the charging current to not exceed 3.25A. If the charging device is a PAD, since the charging power required by the PAD is less than the charging power of the laptop, the PAD will send a signal to inform the charger that it only needs 15V-2A. At this time, the charger will adjust the output to 15V, and the charger and PAD will control the current to not exceed 2A.

[0051] Existing multi-port chargers usually allocate the transmission power to each output port by evenly distributing the total power, or after a certain output port outputs the maximum fixed transmission power, the remaining output ports output in an even distribution manner. These schemes allocate a fixed output power to each output port, which is difficult to adapt to various loads. When the rated charging capacity of the load does not match the output capacity of the output port, the charging capacity of the charger cannot be fully utilized, resulting in a waste of the charger's output capacity.

[0052] Based on the above technical problems, the inventive concept of the present application is that: in the early charging stage when the load has a large power demand, each output port is periodically used as the main output port, and the maximum transmission power of the main output port is used as the transmission power; then in the middle charging stage when the load has a normal power demand, the main output port is periodically selected, and the actual load power of the main output port is used as the transmission power; finally, in the late charging stage when the load has a small power demand, the transmission power of each charging port is evenly distributed, so that appropriate output power can be allocated to the output ports connected to different loads to solve the above technical problems of the prior art.

[0053] The specific application scenarios of this application are as follows:

[0054] Figure 1 Schematic diagram of application scenario of the power distribution method provided in the embodiment of the present application. Figure 1 As shown, the charging device 101 is provided with two output ports 103 connected to the loads 104, namely, the output port A is connected to the load 1, and the output port B is connected to the load 2. After the electric power is input through the power supply port 102 of the charger 101 and distributed and processed by the controller 105, it is transmitted to the output port A and the output port B, and then transmitted to the connected loads 1 and 2.

[0055] The technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0056] Figure 2 Schematic diagram of the power distribution method provided in the embodiment of the present application Figure 1 .like Figure 2 As shown, the method includes:

[0057] S201 . In each switching cycle, each output port is used as a main output port in turn according to a switching time interval, and the remaining output ports except the main output port are used as auxiliary output ports.

[0058] The number of output ports is N (N≥2), and the switching cycle period includes M (M≥N) switching time intervals.

[0059] Specifically, the charger has multiple output ports, such as two, three, etc. Since the voltage obtained by the charger is certain, its total output power is also certain. In order to improve the fast charging efficiency, when allocating power, it is necessary to process it according to the situation of the connected load. The output port that is not connected to the load does not need to allocate power, thereby increasing the power value allocated to the output port that has been connected to the load, thereby improving the charging efficiency of the connected load.

[0060] In order to achieve the overall fast charging effect, the output power of each output port is not fixed. Each output port is used as the main output port in turn according to the switching time interval to output a higher transmission power. The remaining output ports are secondary output ports to output a lower transmission power. The main output port changes with time, so that each connected load is allocated a certain fast charging time, thereby avoiding the problem of slower overall charging efficiency of all connected loads when the connected load occupies a fixed maximum power output port for a long time.

[0061] S202: Prioritize allocating a first transmission power required by the main output port.

[0062] Specifically, since the charging pattern of the load is fast in the early stage and slow in the later stage, the load can no longer efficiently utilize all the power output by the charger in the later stage of charging. As a result, if the allocatable power is maintained on a certain load, it will not be used in the later stage of charging, but the other loads will not have the opportunity to use it.

[0063] In order to improve the overall charging efficiency of multiple loads, the charger can perform fast charging in sequence according to the load conditions, that is, provide the maximum output power to one of the output ports in a certain time period, and the remaining output ports provide the minimum working power that meets the load charging conditions; in the next time period, provide the maximum output power to the next output port, and the remaining output ports (including the output port that was provided with the maximum output power last time) provide the minimum working power that meets the load charging conditions, thereby avoiding a certain load occupying an output port with higher output power for a long time, resulting in slower charging speed of multiple loads as a whole.

[0064] The first transmission power of the charger corresponding to the load is the highest transmission power provided for the load; the secondary transmission power corresponding to the output of the remaining loads is the second transmission power to the Nth transmission power corresponding to the charger. Among them, the first transmission power is greater than any secondary transmission power. The second transmission power to the Nth transmission power can be the same or different, that is, the secondary transmission power of each secondary output port can be evenly distributed according to the power difference after subtracting the first transmission power from the total output power or distributed according to the ratio of the actual load power drawn in the last switching cycle of each load.

[0065] The main output port is taken as the priority allocation object of transmission power, so that the power allocation can follow the switching of the main and auxiliary output ports, and then the allocable transmission power is allocated to each output port in turn within each switching cycle, thereby achieving an overall fast charging effect for multiple output ports in one charger.

[0066] The method provided in this embodiment realizes the means of allocating output power of each output port during fast charging by using each output port as the main output port to transmit the corresponding first transmission power in turn according to the switching time interval, and using the remaining output ports except the main output port as the auxiliary output ports to transmit the corresponding second transmission power to the Nth transmission power, so as to realize the dynamic allocation of power of the charger output port, so that each connected load can enjoy the fast charging time as the main output port, make full use of the power transmission function of each output port, and improve the overall charging efficiency of the connected load.

[0067] The power distribution method of the present application is described in detail below with reference to a specific embodiment.

[0068] Figure 3 Schematic diagram of the power distribution method provided in the embodiment of the present application Figure 2 .like Figure 3 As shown, the method includes:

[0069] S301, setting an initial transmission power corresponding to each output port, and in the first switching cycle of each charging process, each output port allocates power according to the initial transmission power.

[0070] Specifically, when the charger has multiple output ports, in order to avoid the situation where the output power of any output port is too low and cannot supply power to the load, it is necessary to obtain the total output power of the charger and the minimum working power of each connected load in advance, so as to reasonably allocate the output power of the output ports.

[0071] The minimum operating power is a fixed power value of the load as an operating device. If the output power of the charger is less than the minimum operating power, the charger cannot charge it.

[0072] Since the lowest working power is the lowest charging power of the connected load, the corresponding power on the charger is the second transmission power to the Nth transmission power, so that the charger distributes the power of the output port according to the second transmission power to the Nth transmission power.

[0073] S302: In each switching cycle, each output port is used as a main output port in turn according to the switching time interval, and the remaining output ports except the main output port are used as secondary output ports, and the main output port is preferentially allocated with the first transmission power required accordingly.

[0074] The first transmission power corresponding to each output port is the difference between the total output power and the secondary transmission powers corresponding to the remaining output ports.

[0075] Specifically, after the secondary transmission power corresponding to each output port is obtained, the first transmission power of the output port is obtained by calculating the difference between the total output power and the secondary transmission powers of the remaining output ports.

[0076] Taking the case of two output ports as an example, a charger with a total output power of 60W has load 1 and load 2 connected to output port A and output port B respectively. The minimum working power of load 1 is 20W, and the minimum working power of load 2 is 30W. The second transmission power of the charger corresponding to output port A is 20W, and the first transmission power is 60W-30W=30W. The second transmission power corresponding to output port B is 30W, and the first transmission power is 60W-20W=40W.

[0077] S303: At the end of each switching time interval, the actual load power of the current main output port is obtained and stored.

[0078] Specifically, as the load is connected to the charger for a longer time, the amount of electricity stored in the load gradually increases, and the voltage difference with the charger gradually decreases. At this time, the load will obtain power from the charger according to actual demand. At this time, if the charger still distributes according to the first transmission power and the second transmission power to the Nth transmission power in the initial charging stage, part of the power will not be drawn and wasted. Therefore, when the actual draw power of the load connected to the main output port decreases, it can be distributed according to the actual draw power of the load. Therefore, it is necessary to obtain the actual draw power of the load at the beginning and end of the switching time interval to determine whether the actual draw power has decreased, and then to determine the power allocation method for the next cycle.

[0079] S304: Use the current actual draw power as the first transmission power of the output port corresponding to the current main output port in the next switching cycle.

[0080] Specifically, after the transmission power of the main output port is set to the actual load-drawing power, power allocation processing is also required in the manner of periodically allocating the main output port. At the end of the switching time interval, one of the secondary output ports is selected as the new main output port, and the actual load-drawing power corresponding to the main output port is output.

[0081] The transmission power of the main output port is set to the actual load-drawing power of the output port, and the power difference after deducting the first transmission power from the total output power is evenly distributed as the second transmission power to the Nth transmission power to increase the output power of other auxiliary output ports, thereby improving the actual load-drawing power output of the entire load and improving the overall charging efficiency of the load.

[0082] Taking the case of two output ports as an example, a charger with a total output power of 60W has load 1 and load 2 connected to output ports A and B respectively. The actual draw power of load 1 is 30W, and the actual draw power of load 2 is 45W. When output port A is the main output port, the transmission power of the charger corresponding to output port A is set to the actual draw power of 30W. At this time, the transmission power of output port B is set to 60W-30W=30W, so as to meet the charging needs of load 1 while improving the charging efficiency of load 2.

[0083] S305. At the end of each switching cycle, determine whether the actual draw power of each output port is less than the average output power. If so, execute S306; if not, enter the next switching cycle.

[0084] The average output power is the ratio of the total output power of the charger to the number of connected loads.

[0085] Specifically, as the charging time increases, when the actual draw power of the two output ports is less than the average output power of the charger, the two output ports transmit the average output power at the same time to meet the load demand, and there is no need to switch the main and auxiliary roles of the two output ports at the switching time interval. Therefore, it is necessary to determine whether the actual draw power is less than the average output power.

[0086] S306: Distribute power evenly to all output ports, and the current switching cycle will be the last switching cycle.

[0087] Specifically, only when the actual load power of the two output ports as the main output ports is not greater than the average output power can all be switched to the average output power. When the actual load power of any output port is greater than the average output power, it is still necessary to output it in the form of actual load power as transmission power, so that the load greater than the average output power can be charged with a relatively large power, thereby improving the charging efficiency of the load.

[0088] The method provided in this embodiment sets the initial transmission power corresponding to each output port. In the first switching cycle of each charging process, each output port allocates power according to the initial transmission power. In each switching cycle, each output port is used as the main output port in turn according to the switching time interval, and the remaining output ports except the main output port are used as auxiliary output ports. The main output port is preferentially allocated with the corresponding required first transmission power, so that each output port uses the actual load power as the transmission power. Periodic switching is achieved, thereby improving the power allocation of the auxiliary output port, thereby improving the charging efficiency of the load connected to the auxiliary output port, and ensuring that when different output ports are switched as the main output port, the normal charging state of other auxiliary output ports is not affected.

[0089] By obtaining and storing the actual draw power of the current main output port at the end of each switching time interval; using the current actual draw power as the first transmission power of the output port corresponding to the current main output port in the next switching cycle, the function of predetermining the transmission power corresponding to the next main output port after the periodic switching between the main and auxiliary output ports is realized.

[0090] At the end of each switching cycle, it is determined whether the actual load power of each output port is less than the average output power. If so, the power is evenly distributed to all output ports, and the current switching cycle will be the last switching cycle. If not, the next switching cycle will be entered to realize the judgment of the late charging stage. Then, based on the result that they are all less than the average output power, the transmission power of each output port is set to the average output power to achieve synchronous fast charging of multiple loads.

[0091] Figure 4 Schematic diagram of the power distribution method provided in the embodiment of the present application Figure 3 .like Figure 4 As shown, the method includes:

[0092] S401, setting an initial transmission power corresponding to each output port, and in the first switching cycle of each charging process, each output port allocates power according to the initial transmission power.

[0093] S402: In each switching cycle, each output port is used as a main output port in turn according to the switching time interval, and the remaining output ports except the main output port are used as secondary output ports, and the main output port is preferentially allocated with the first transmission power required accordingly.

[0094] S403: At the end of each switching time interval, the actual load power of the current main output port is obtained and stored.

[0095] The specific implementation of S401-S403 is similar to the specific implementation of S301-S303, and will not be repeated here in this embodiment.

[0096] S404: The sum of the current actual draw power and the preset power added value is used as the first transmission power of the output port corresponding to the current main output port in the next switching cycle.

[0097] Specifically, the second to Nth transmission powers are determined according to the ratio of the actual load extraction power in the previous switching cycle of each load, and then the allocable preset power addition value is obtained by subtracting it from the total output power. After the preset power addition value is allocated to any output port, it is combined with any of the second to Nth transmission powers of the output port to obtain the first transmission power corresponding to the output port.

[0098] Taking the case of two output ports as an example, a charger with a total output power of 60W has load 1 and load 2 connected to output port A and output port B respectively. The minimum working power of load 1 is 20W, and the minimum working power of load 2 is 30W. The second transmission power of the charger corresponding to output port A is 20W, and the second transmission power corresponding to output port B is 30W. The allocable power is 60W-20W-30W=10W. Therefore, the first transmission power of the charger corresponding to output port A is 30W, and the first transmission power corresponding to output port B is 40W.

[0099] Since the required voltage of the load gradually decreases during the cyclic switching of the main output port, it is necessary to monitor when the load enters the middle charging period. Therefore, it is necessary to obtain the actual load power of the output port after switching at the end of each switching cycle.

[0100] S405. At the end of each switching cycle, determine whether the actual draw power of each output port is less than the average output power. If so, execute S406; if not, enter the next switching cycle.

[0101] S406: Distribute power evenly to all output ports, and the current switching cycle will be the last switching cycle.

[0102] The specific implementation of S405-S406 is similar to the specific implementation of S305-S306, and will not be repeated here in this embodiment.

[0103] The method provided in this embodiment uses the sum of the current actual load power and the preset power addition value as the first transmission power of the output port corresponding to the current main output port in the next switching cycle, thereby realizing the function of predetermining the transmission power corresponding to the next main output port after the main and auxiliary output ports are periodically switched between different output ports.

[0104] The present application also provides a charging device, which includes:

[0105] Output ports, the number of which is N (N≥2);

[0106] The controller is used to use each output port as the main output port in turn according to the switching time interval in each switching cycle, preferentially allocate the corresponding required first transmission power to the main output port, and use the remaining output ports except the main output port as secondary output ports. The switching cycle includes M (M≥N) switching time intervals.

[0107] Preferably, the controller is specifically used for:

[0108] The initial transmission power corresponding to each output port is set, and in the first switching cycle of each charging process, each output port allocates power according to the initial transmission power.

[0109] Preferably, the controller is specifically used for:

[0110] At the end of each switching time interval, the actual draw power of the current main output port is obtained and stored;

[0111] The first transmission power of the output port corresponding to the current main output port in the next switching cycle is determined according to the current actual draw power.

[0112] Furthermore, the controller is also used for:

[0113] At the end of each switching cycle, it is determined whether the actual draw power of each output port is less than the average output power; wherein the average output power is the ratio of the total output power of the charger to the number of connected loads;

[0114] If the judgment result is yes, power is evenly distributed to all output ports, and the current switching cycle will be the last switching cycle;

[0115] If the judgment result is no, then enter the next switching cycle.

[0116] Furthermore, the controller is also used for:

[0117] Determining the first transmission power of the output port corresponding to the current main output port in the next switching cycle according to the current actual draw power includes:

[0118] The current actual draw power is used as the first transmission power of the output port corresponding to the current main output port in the next switching cycle, or,

[0119] The sum of the current actual draw power and the preset power added value is used as the first transmission power of the output port corresponding to the current main output port in the next switching cycle.

[0120] Furthermore, the controller is also used for:

[0121] The second transmission power to the Nth transmission power are determined by evenly distributing the power difference between the total output power and the first transmission power, or,

[0122] According to the power difference obtained by subtracting the first transmission power from the total output power, the second transmission power to the Nth transmission power are determined by allocating the power according to the ratio of the actual load extraction power in the previous switching cycle of each load.

[0123] The charging device provided in this embodiment can execute the power distribution method of the above-mentioned embodiment, and its implementation principle and technical effect are similar, which will not be described in detail in this embodiment.

[0124] The embodiment of the present invention can divide the electronic device or the main control device into functional modules according to the above method example. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing unit. The above integrated unit can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiment of the present invention is schematic and is only a logical function division. There may be other division methods in actual implementation.

[0125] In the specific implementation of the aforementioned charging device, each module may be implemented as a processor, and the processor may execute computer-executable instructions stored in the memory, so that the processor executes the aforementioned power distribution method.

[0126] The present application also provides a fast charging charger, including:

[0127] The charger body and at least one processor and memory.

[0128] The processor is electrically connected to the charger body and the memory respectively.

[0129] During the specific implementation process, at least one processor executes the computer execution instructions stored in the memory, so that at least one processor executes the power distribution method executed by the fast charging charger side as above.

[0130] The specific implementation process of the processor can be found in the above method embodiment, and its implementation principle and technical effect are similar, so this embodiment will not be repeated here.

[0131] In the above embodiments, it should be understood that the processor may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), etc. A general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in the invention may be directly implemented as being executed by a hardware processor, or may be executed by a combination of hardware and software modules in the processor.

[0132] The memory may include a high-speed RAM memory, and may also include a non-volatile storage NVM, such as at least one disk storage.

[0133] The above-mentioned functions implemented by the electronic device and the main control device introduce the scheme provided by the embodiment of the present invention. It can be understood that in order to implement the above-mentioned functions, the electronic device or the main control device includes a hardware structure and / or software module corresponding to the execution of each function. In combination with the units and algorithm steps of each example described in the embodiment disclosed in the embodiment of the present invention, the embodiment of the present invention can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the technical solution of the embodiment of the present invention.

[0134] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A power distribution method, It is characterized in that Applicable to chargers with N (N≥2) output ports, including: In each switching cycle, each output port is used as the main output port in turn according to the switching time interval, and the main output port is preferentially allocated the corresponding required first transmission power. The remaining output ports except the main output port are used as secondary output ports. The switching cycle includes M (M≥N) switching time intervals.

2. The method according to claim 1, It is characterized in that include: An initial transmission power corresponding to each output port is set, and in the first switching cycle period of each charging process, each output port allocates power according to the initial transmission power.

3. The method according to claim 1, It is characterized in that include: At the end of each switching time interval, the actual draw power of the current main output port is obtained and stored; The first transmission power of the output port corresponding to the current main output port in the next switching cycle is determined according to the current actual draw power.

4. The method according to claim 3, It is characterized in that The method further comprises: At the end of each switching cycle, it is determined whether the actual draw power of each output port is less than the average output power; wherein the average output power is the ratio of the total output power of the charger to the number of connected loads; If the judgment result is yes, power is evenly distributed to all output ports, and the current switching cycle will be the last switching cycle; If the judgment result is no, then enter the next switching cycle.

5. The method according to claim 3, It is characterized in that The determining, according to the current actual draw power, the first transmission power of the output port corresponding to the current main output port in the next switching cycle period includes: The current actual draw-off power is used as the first transmission power of the output port corresponding to the current main output port in the next switching cycle, or, The sum of the current actual draw power and the preset power added value is used as the first transmission power of the output port corresponding to the current main output port in the next switching cycle.

6. The method according to claim 3, It is characterized in that The method further comprises: The second transmission power to the Nth transmission power are determined by evenly distributing the power difference between the total output power and the first transmission power, or, According to the power difference obtained by subtracting the first transmission power from the total output power, the second transmission power to the Nth transmission power are determined by allocating the power according to the ratio of the actual load extraction power in the previous switching cycle of each load.

7. A charging device, It is characterized in that include: Output ports, the number of which is N (N≥2); The controller is used to use each output port as a main output port in turn according to the switching time interval in each switching cycle, preferentially allocate the corresponding required first transmission power to the main output port, and use the remaining output ports except the main output port as secondary output ports. The switching cycle includes M (M≥N) switching time intervals.

8. The device according to claim 7, It is characterized in that The controller is also used to: set the initial transmission power corresponding to each output port, and in the first switching cycle period of each charging process, each output port allocates power according to the initial transmission power.

9. The device according to claim 7, It is characterized in that The controller is also used to: obtain and store the actual draw power of the current main output port at the end of each switching time interval; The first transmission power of the output port corresponding to the current main output port in the next switching cycle is determined according to the current actual draw power.

10. The device according to claim 9, It is characterized in that The controller is also used to: at the end of each switching cycle, determine whether the actual draw power of each output port is less than the average output power; wherein the average output power is the ratio of the total output power of the charger to the number of connected loads; If the judgment result is yes, power is evenly distributed to all output ports, and the current switching cycle will be the last switching cycle; If the judgment result is no, then enter the next switching cycle.

11. The device according to claim 9, It is characterized in that The controller is further used to determine the first transmission power of the output port corresponding to the current main output port in the next switching cycle according to the current actual draw power, including: The current actual draw-off power is used as the first transmission power of the output port corresponding to the current main output port in the next switching cycle, or, The sum of the current actual draw power and the preset power added value is used as the first transmission power of the output port corresponding to the current main output port in the next switching cycle.

12. The device according to claim 9, It is characterized in that The controller is also used for: The second transmission power to the Nth transmission power are determined by evenly distributing the power difference between the total output power and the first transmission power, or, According to the power difference obtained by subtracting the first transmission power from the total output power, the second transmission power to the Nth transmission power are determined by allocating the power according to the ratio of the actual load extraction power in the previous switching cycle of each load.

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