CN111245066A

CN111245066A - Charging system and charging management method

Info

Publication number: CN111245066A
Application number: CN202010198843.2A
Authority: CN
Inventors: 杨磊; 农健
Original assignee: Shanghai Junzheng Network Technology Co Ltd
Current assignee: Shanghai Junzheng Network Technology Co Ltd
Priority date: 2020-03-19
Filing date: 2020-03-19
Publication date: 2020-06-05

Abstract

The invention relates to the technical field of Internet of things and discloses a charging system and a charging management method. The first battery module has a first safe temperature range; the first charging module is used for charging the first battery module; the second battery module has a second safe temperature range, and the second safe temperature range is greater than the first safe temperature range; the second charging module is used for charging the second battery module; the temperature acquisition module is used for acquiring the temperatures of the first battery module and the second battery module; the control module is respectively connected with the temperature acquisition module, the first charging module and the second charging module and is used for controlling the first charging module and the second charging module to work. Therefore, the charging temperature range is expanded, the energy storage of the battery is increased, and the target to be powered can work for a long time.

Description

Charging system and charging management method

Technical Field

The invention relates to the technical field of Internet of things, in particular to a charging system and a charging management method.

Background

In the fields of industrial control, trip, monitoring and internet of things, outdoor low-power wireless electronic products generally adopt schemes such as built-in lithium batteries and polymer lithium batteries to supply power to a system, and adopt modes such as solar cell panels, power generation flower drums or wind power generation to charge batteries. However, the safe charging temperature range of the batteries is only 0-45 ℃, and the use requirements of outdoor severe cold and high temperature environments are difficult to meet, so that the batteries cannot be charged in severe weather, and the working time of the system is seriously shortened. The following solutions are common in the industry at present:

(1) system portion functions are shut down to reduce system battery consumption, thereby extending system operating time. But this approach degrades the user experience.

(2) The battery capacity is increased to extend the battery life as long as possible when charging is impossible. This approach greatly increases the design cost.

(3) The battery pack adopts a closed heat preservation design, and a semiconductor ceramic chip or a low-power electric heating wire is added to heat or cool the battery. The method has the advantages of large electric energy loss, low charging efficiency and complex structural design.

In summary, how to reasonably solve the problem of shortening the system operating time caused by the fact that the battery cannot be charged in severe weather of severe cold and high temperature is one of the problems to be solved in the current field.

Disclosure of Invention

In view of the above, it is necessary to provide a charging system and a charging management method for solving the problem that the battery cannot be charged in severe weather of severe cold and high temperature, which results in shortening of the system operation time.

A charging system, comprising:

a first battery module having a first safe temperature range;

the first charging module is connected with the first battery module and used for charging the first battery module;

a second battery module having a second safe temperature range, the second safe temperature range covering the first safe temperature range, and the second safe temperature range being greater than the first safe temperature range;

the second charging module is connected with the second battery module and used for charging the second battery module;

the temperature acquisition module is used for acquiring the temperatures of the first battery module and the second battery module;

and the control module is respectively connected with the temperature acquisition module, the first charging module and the second charging module and is used for controlling the first charging module and the second charging module to work.

In one embodiment, the first battery module is a lithium battery pack, and the second battery module is a lithium ion capacitor battery.

In one embodiment, the method further comprises the following steps:

the first diode is arranged between the first battery module and the target to be powered, and the anode of the first diode is close to the first battery module;

and the second diode is arranged between the second battery module and the target to be powered, and the anode of the second diode is close to the second battery module.

In one embodiment, the charging device further comprises a power generation module, and the output end of the power generation module is respectively connected with the first charging module and the second charging module.

In one embodiment, the first charging module is a charging path management module, and the second charging module is an energy collection module.

A charging management method of the charging system includes:

acquiring the temperatures of a first battery module and a second battery module;

judging whether the temperatures of the first battery module and the second battery module are within a first safe temperature range or not;

when the temperature exceeds the first safety temperature range, judging whether the temperature is within a second safety temperature range;

and when the temperature is within the second safe temperature range, keeping the second charging module to charge the second battery module, and stopping the first charging module from charging the first battery module.

In one embodiment, when the temperature is within the second safe temperature range, the first charging module is controlled to supply power to the target to be powered while the first charging module stops charging the first battery module.

In one embodiment, the method further comprises the following steps:

and when the temperature exceeds the second safe temperature range, stopping the first charging module from charging the first battery module, and stopping the second charging module from charging the second battery module.

An electronic device, comprising:

the charging management system comprises a memory and a processor, wherein the memory and the processor are mutually connected in a communication mode, the memory stores computer instructions, and the processor executes the computer instructions so as to execute the charging management method.

A computer readable storage medium having stored therein computer instructions which, when executed by a processor, implement a charging management method as described above.

The charging system comprises two battery modules, namely a first battery module and a second battery module, and simultaneously comprises a first charging module and a second charging module, wherein the first charging module is used for charging the first battery module, and the second charging module is used for charging the second battery module. The second safety temperature range of the second battery module covers the first safety temperature range of the first battery module, and the second safety temperature range is larger than the first safety temperature range. Therefore, when the temperatures of the first battery module and the second battery module are within the first safe temperature range, the first charging module and the second charging module can be simultaneously controlled to respectively charge the first battery module and the second battery module, and when the temperatures exceed the first safe temperature range and are within the second safe temperature range, although the first battery module cannot be charged, the second battery module can still be charged by the second charging module. Therefore, the charging temperature range is expanded, and even in high-temperature or severe cold climate, the common energy storage of the first battery module and the second battery module can support the long-term operation of the system.

Drawings

Fig. 1 is a schematic structural diagram of a charging system according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of another embodiment of a charging system according to a first embodiment of the present invention;

fig. 3 is a schematic structural diagram of a charging system according to another embodiment of the present invention;

fig. 4 is a schematic circuit diagram of a charging path management module in the charging system according to an embodiment of the present invention;

fig. 5 is a schematic diagram of an internal circuit structure of a charging management chip in the charging path management module according to an embodiment of the present invention;

fig. 6 is a schematic circuit diagram of an energy collection module in a charging system according to an embodiment of the present invention;

fig. 7 is a schematic diagram of an internal circuit structure of an energy collection chip in an energy collection module according to an embodiment of the present invention;

fig. 8 is a flowchart of an implementation manner of a charging management method according to a second embodiment of the present invention;

fig. 9 is a flowchart of another implementation manner of a charging management method according to a second embodiment of the present invention;

fig. 10 is a schematic structural diagram of an electronic device according to a third embodiment of the present invention.

Reference numerals:

10-a first battery module; 11-a first charging module; 12-a second battery module; 13-a second charging module; 14-a temperature acquisition module; 15-a control module; 16-the target to be powered; 17-a first diode; 18-a second diode; 19-a third diode; 110-a power generation module; 111-voltage reduction circuit.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "left," "right," "upper," "lower," "front," "rear," "circumferential," and the like are based on the orientation or positional relationship shown in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Example one

The embodiment of the invention provides a charging system which is suitable for supplying power to outdoor low-power-consumption wireless electronic products. As shown in fig. 1 and 2, the charging system includes a first battery module 10, a first charging module 11, a second battery module 12, a second charging module 13, a temperature acquisition module 14, and a control module 15.

The first battery module 10 and the second battery module 12 are arranged in parallel and are used for supplying power to the target 16 to be powered. The target 16 to be powered may be a wireless electronic product for outdoor use, such as a sharing bicycle or the like. The first battery module 10 has a first safe temperature range, the second battery module 12 has a second safe temperature range, the second safe temperature range covers the first safe temperature range, and the second safe temperature range is greater than the first safe temperature range. The safe temperature range refers to a temperature range in which the battery can be safely charged and operated. The first charging module 11 is connected to the first battery module 10 for charging the first battery module 10, and the second charging module 13 is connected to the second battery module 12 for charging the second battery module 12. Preferably, the first charging module 11 can also supply power to the target 16 to be powered, i.e. the output terminals of the first charging module 11 are respectively connected to the target 16 to be powered. Thus, the first battery module 10, the first charging module 11, and the second battery module 12 may each provide power to the target 16 to be powered.

The temperature acquisition module 14 is used for acquiring the temperatures of the first battery module 10 and the second battery module 12 and sending the temperatures to the control module 15, and the control module 15 is respectively connected with the temperature acquisition module 14, the first charging module 11 and the second charging module 13 and is used for controlling the first charging module 11 and the second charging module 13 to work according to the temperatures sent by the temperature acquisition module 14. Specifically, when the temperatures of the first battery module 10 and the second battery module 12 collected by the temperature collection module 14 are within the first safe temperature range, the controller may simultaneously control the first charging module 11 and the second charging module 13 to respectively supply power to the first battery module 10 and the second battery module 12. When the temperatures of the first battery module 10 and the second battery module 12 collected by the temperature collection module 14 exceed the first safe temperature range but are within the second safe temperature range, the controller stops the first charging module 11 from charging the first battery module 10, so as to prevent the first battery module 10 from being damaged, and controls the second charging module 13 to continue to charge the second battery module 12. Therefore, by arranging the battery modules with different safety temperature ranges, the overall charging temperature range of the system is expanded, the battery energy storage is increased, and the target 16 to be powered can work for a long time.

In a preferred embodiment, the first battery module 10 in this embodiment is a lithium battery pack, and the second battery module 12 is a lithium ion capacitor battery. The capacity of the lithium ion capacitor battery is only about 1/10 of the capacity of the lithium battery pack, the lithium ion capacitor battery is added on the basis of the lithium battery pack, the charging safety temperature of the charging system is expanded from a first safety temperature range to a second safety temperature range under the condition that the cost and the volume are not obviously increased, and the charging time and the energy storage of the battery module are prolonged.

Typically, the first safe temperature range for lithium batteries is 0 ℃ to 45 ℃ and the second safe temperature range for lithium-ion capacitor batteries is-40 ℃ to 85 ℃. Namely, when the temperature is between 0 and 45 ℃, the lithium battery pack and the lithium ion capacitor battery can be charged at the same time, and when the temperature exceeds 0 to 45 ℃, the lithium ion capacitor battery can be continuously charged for storing energy. The safety temperature of the lithium ion capacitor battery can reach minus 40 ℃ at the lowest and 85 ℃ at the highest, and the temperature range basically and completely covers the temperature which can be reached outdoors, namely, as long as the lithium ion capacitor battery is outdoors, the charging of the lithium ion capacitor battery is basically not limited by the outdoor temperature, and when the lithium battery pack can not be charged, the lithium ion capacitor battery can be charged to continuously store energy. Even if the outdoor temperature really exceeds the range of-40 ℃ to 85 ℃, the target 16 to be powered can be powered by the common discharge mode of the two batteries, and the service time of the target 16 to be powered is effectively prolonged.

In this embodiment, the capacity selection principle of the lithium battery pack is as follows: the capacity of the lithium ion battery pack is equal to the average working current of a target to be powered 16 multiplied by 24 hours multiplied by 60 days, and the capacity of the lithium ion battery pack is selected as follows: the capacity of the lithium ion capacitor battery is equal to the average operating current of the target 16 to be powered × 24 hours × 7 days. Therefore, under the high and low temperature environment, as long as the energy for charging the lithium ion capacitor battery every day is larger than the energy consumed by the target 16 to be powered, the target 16 to be powered can be ensured to work for a long time.

In addition, when the temperature of the first battery module 10 is out of the safe temperature range, the first charging module 11 may directly supply power to the target 16 to be powered, and thus the consumption of the second battery module 12 may be reduced.

As a preferred embodiment, as shown in fig. 2, in this embodiment, the charging system further includes a first diode 17 and a second diode 18, the first diode 17 is connected between the first battery module 10 and the object 16 to be powered, and the anode of the first diode 17 is disposed near the first battery module 10; the second diode 18 is connected between the second battery module 12 and the object to be powered 16, and the anode of the second diode 18 is disposed near the second battery module 12.

Taking a lithium battery pack and a lithium ion capacitor battery as an example, because the upper voltage limits of the lithium battery pack and the lithium ion capacitor battery are different, specifically, the highest safe voltage of the lithium battery pack is 4.2V, the highest safe voltage of the lithium ion capacitor battery is 3.9V, and the first diode 17 and the second diode 18 are arranged to prevent the two batteries from being directly connected in parallel to cause damage to the lithium ion capacitor battery. In addition, the first diode 17 and the second diode 18 are preferably ideal diodes, and since the voltage drop of the ideal diodes is substantially 0, the loss is extremely small. In this embodiment, a circuit module having diode characteristics and composed of a controller and a PMOS transistor may be used as the ideal diode. Of course, the first diode 17 and the second diode 18 may be schottky diodes or the like.

In addition, cathodes of the first diode 17 and the second diode 18 are connected to the target 16 to be supplied with power through the voltage-decreasing circuit 111. The voltage reduction circuit adopts the existing DC-DC voltage reduction circuit.

As a preferred implementation manner, as shown in fig. 3, in this embodiment, the charging system further includes a power generation module 110, and output ends of the power generation module 110 are respectively connected to the first charging module 11 and the second charging module 13. The power generation module 110 is one or more of a solar panel, a power generation hub and a wind driven generator. In this embodiment, the power generation module 110 is preferably a solar panel, that is, the first charging module 11 and the second charging module 13 are powered by the solar panel, and then the first charging module 11 and the second charging module 13 respectively charge the first battery module 10 and the second charging module 13.

As a preferred implementation manner, in this embodiment, the first charging module 11 is a charging path management module, and the second charging module 13 is an energy collection module. The charging path management module can coordinate the charging path, directly provide the electric energy output by the power generation module 110 to the target 16 to be powered, provide the electric energy provided by the power generation module 110 to the battery, control the battery to discharge to the target 16 to be powered, and charge the battery with redundant energy while preferentially ensuring the power supply requirement of the target 16 to be powered. The energy collection module can collect energy and provide the energy to the battery, and has high conversion energy efficiency.

Specifically, fig. 4 shows a specific circuit structure of the charging path management module, the circuit is built based on a BQ25601 charging management chip, and fig. 5 shows an internal circuit diagram of the BQ25601 charging management chip. When the input power is not accessed, the Q4(BATFET) inside the chip is fully turned on, and the battery directly supplies power to the system load (i.e., the target to be powered). When there is input power, the voltage of the system is regulated by the DC/DC of the charging chip, and the system charges the battery through the BATFET. However, the system load has a higher priority for power utilization, the charging IC will preferentially supply power to the system according to the capability of the input power and the demand of the system load, and the remaining power is used for charging the battery, specifically: in the charging process, when the total system load demand exceeds the capacity of the input power supply, the system voltage drops, the charging IC reduces the charging current to ensure that the total load power does not increase any more, so that the system voltage is stabilized and the stable operation of the system load is maintained. If the input power supply still fails to meet the system load requirements after the charging current is reduced to zero, the system voltage will continue to drop below the battery voltage, at which point the battery will power the system via the BATFET, referred to as the battery supplement power mode. Where the input power source and battery simultaneously provide power to the system.

Fig. 6 shows a specific circuit structure of the energy collection module, the circuit is built on the basis of an SPV1050 energy collection chip, and fig. 7 shows an internal circuit structure of the energy collection chip. The energy collecting circuit has a step-up or step-down conversion mode, the input voltage range is from 75mV to 18V, the MPPT maximum power point tracking circuit is suitable for most thermoelectric generators (low voltage and high current) and solar panels (high voltage and low current) in the market, and an efficient MPPT maximum power point tracking algorithm is further realized for the output of the input stage and the transducer. The power point tracking algorithm updates the Maximum Power Point (MPP) in real time according to the environment change condition, and the working principle is that the input voltage is sampled and recorded usually once every 16 seconds, and then the sampling is temporarily stored in an external capacitor, so that the switching duty ratio of an internal MOSFET can be updated regularly to follow the VMPP algorithm, even when the irradiation and thermal gradient condition is very easy to change. To prevent overcharging, the internal high-precision logic module monitors the battery voltage through an external resistor voltage divider, since the battery regulation voltage can be set in the range of 2.6V to 5.3V, which can satisfy any type of battery charging limitation (liquid, polymer lithium battery, super capacitor battery, thin film solid battery, nickel-metal hydride battery). Meanwhile, according to the technology of the used battery, the under-voltage threshold value can be set between 2.2V and 3.6V, and the two threshold voltage values can be accurately set with the accuracy of +/-1%.

When the first charging module 11 is a charging path management module, the first battery module 10 supplies power to the target 16 to be powered through the charging path management module, and the first diode 17 may be disposed between the charging path management module and the target 16 to be powered, that is, the power supply path is the first battery module 10 → the charging path management module → the first diode 17 → the voltage reducing circuit 111 → the target 16 to be powered.

When the second charging module 13 is an energy collection module, since the requirement on the capacitance of the input end by the energy collection module is strict, in order to avoid the influence on the input end capacitance of the charging path management module, a third diode 19 is connected in series between the energy collection module and the power generation module 110, and the anode of the third diode 19 is close to the power generation module 110. Therefore, the input capacitance of the energy collection module can be ensured not to influence the tracking performance of the energy collection module on the maximum output power of the power generation module 110 due to external discharge.

As a preferred embodiment, the charging system further comprises a voltage and current detection module, wherein the voltage and current detection module is used for detecting the voltage and the charging current of the first battery module 10 and the second battery module 12 and sending the voltage and the charging current to the control module 15, and the control module 15 controls the working state of the first charging module 11 and the second charging module 13 by combining the temperature information and the charging voltage and current information.

In practical applications, the high power module in the target 16 to be powered is powered by a lithium battery pack, and the high power module includes a wireless module, such as a 2G, 4G, NB-iot (narrow Band Internet of things), which consumes a high current for a short time during network access, so that the lithium battery pack is directly used for power supply. On one hand, the size of the ideal diode device can be reduced, the occupied area of a PCB (printed circuit board) is reduced, and on the other hand, abnormal resetting of the controller caused by serious voltage drop due to overlarge current in the networking process is avoided. And other low-power-consumption modules adopt a lithium battery pack and a lithium ion capacitor battery to supply power together.

In addition, still set up load switch between high-power module and lithium cell group, load switch has extremely low on-resistance, and can hiccup formula control output voltage when load current is greater than the protection threshold value, avoids the load overweight and causes the input voltage to drop too big.

Example two

An embodiment of the present invention provides a charging management method of a charging system according to an embodiment, as shown in fig. 8, including the following steps:

step S20: the temperatures of the first battery module 10 and the second battery module 12 are acquired. The temperatures of the first battery module 10 and the second battery module 12 are acquired by the temperature acquisition module 14 in real time and are sent to the control module 15.

Step S21: it is determined whether the temperatures of the first and

second battery modules

10 and 12 are within the first safe temperature range.

Step S22: when the temperature is within the first safe temperature range, the first charging module 11 and the second charging module 13 are simultaneously turned on to charge the first battery module 10 and the second battery module 12, respectively. Since the first safe temperature range is smaller than the second safe temperature range, when the temperature is within the first safe temperature range, the temperature is necessarily within the second safe temperature range, and at this time, the first charging module 11 and the second charging module 13 are both within the safe temperature range, and the first charging module 11 and the second charging module 13 are controlled to charge the first battery module 10 and the second battery module 12, respectively.

Step S23: and when the temperature exceeds the first safety temperature range, judging whether the temperature is within a second safety temperature range.

Step S24: when the temperature is within the second safety temperature range, the second charging module 13 is kept to charge the second battery module 12, and the first charging module 11 is stopped to charge the first battery module 10.

When the temperature exceeds the first safety temperature range, which means that the first battery module 10 is not suitable for recharging, the first charging module 11 is stopped to charge the first battery module 10, so as to ensure the safety of the first battery module 10. Since the temperature is still within the second safe temperature range, which means that the second battery module 12 is suitable for charging, the second charging module 13 is continuously kept charging the second battery module 12. The charging temperature range is expanded, the charging duration is prolonged, and the stored energy is increased, so that the power supply for the target 16 to be powered cannot be provided in the subsequent charging process.

As a preferred embodiment, when the temperature is within the second safe temperature range, the first charging module 11 is controlled to supply power to the object 16 to be powered while the first charging module 11 stops charging the first battery module 10. The consumption of the second battery module 12 can thereby be reduced.

As a further preferred embodiment, when the temperature is within the second safe temperature range, it is first determined whether the power generation module has energy output, and if so, the first charging module is controlled to supply power to the target to be supplied with power, otherwise, the first charging module does not continue to supply power.

As shown in fig. 9, the method further includes step S25: and when the second safety temperature range is exceeded, stopping the first charging module 11 from charging the first battery module 10, and stopping the second charging module 13 from charging the second battery module 12.

As a preferred embodiment, the first safe temperature range is from 0 ℃ to 45 ℃ and the second safe temperature range is from-40 ℃ to 85 ℃. Wherein the second safe temperature range substantially completely covers the outdoor achievable temperature, i.e. the second battery module 12 can still be charged when the first battery module 10 cannot be charged, to increase the battery energy storage. The first battery module 10 is a lithium battery pack, and the second battery module 12 is a lithium ion capacitor battery. For specific contents, reference may be made to the related description in the first embodiment, which is not repeated herein.

When the first charging module 11 stops charging the first battery module 10 and the second charging module 13 stops charging the second battery module 12, the first charging module 11 and the second charging module 13 are controlled to supply power to the target 16 to be powered, and meanwhile, the first charging module 11 is also controlled to supply power to the target 16 to be powered.

EXAMPLE III

The embodiment of the present invention provides an electronic device, which includes a memory 30 and a processor 31, where the memory 30 and the processor 31 are connected through a bus or in other manners, and fig. 10 illustrates the connection through the bus as an example.

The processor 31 may be a Central Processing Unit (CPU). The Processor may also be other general purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, or a combination thereof.

The memory 30, which is a non-transitory computer readable storage medium, may be used to store non-transitory software programs, non-transitory computer executable programs, and modules, such as program instructions corresponding to the charging management method in the embodiment of the present invention. The processor 31 executes various functional applications and data processing of the processor by running non-transitory software programs, instructions, and modules stored in the memory 30, that is, implements the above-described charge management method.

The memory 30 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created by the processor 31, and the like. Further, the memory 30 may include high speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory 30 optionally includes memory located remotely from the processor 31, and these remote memories may be connected to the processor via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic Disk, an optical Disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a Flash Memory (Flash Memory), a Hard Disk (Hard Disk Drive, abbreviated as HDD) or a Solid State Drive (SSD), etc.; the storage medium may also comprise a combination of memories of the kind described above.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An electrical charging system, comprising:

a first battery module having a first safe temperature range;

2. The charging system of claim 1, wherein the first battery module is a lithium battery pack and the second battery module is a lithium ion capacitor battery.

3. The charging system of claim 1, further comprising:

the first diode is arranged between the first battery module and a target to be powered, and the anode of the first diode is close to the first battery module;

4. The charging system according to claim 1, further comprising a power generation module, wherein the output ends of the power generation module are respectively connected to the first charging module and the second charging module.

5. The charging system of any of claims 1-4, wherein the first charging module is a charging path management module and the second charging module is an energy harvesting module.

6. A charging management method of a charging system according to any one of claims 1 to 5, comprising:

7. The charge management method according to claim 6, wherein when the temperature is within the second safe temperature range, the first charging module is controlled to supply power to the target to be powered while the first charging module stops charging the first battery module.

8. The charge management method according to claim 7, further comprising:

9. An electronic device, comprising:

a memory and a processor, the memory and the processor being communicatively connected to each other, the memory having stored therein computer instructions, the processor executing the computer instructions to perform the charge management method of any of claims 6-8.

10. A computer-readable storage medium having stored thereon computer instructions which, when executed by a processor, implement the charge management method of any one of claims 6-8.