CN115347276A

CN115347276A - Battery module heating control method, electronic device, and storage medium

Info

Publication number: CN115347276A
Application number: CN202210997398.5A
Authority: CN
Inventors: 童文平; 袁策策
Original assignee: Ecoflow Technology Ltd
Current assignee: Ecoflow Technology Ltd
Priority date: 2022-08-18
Filing date: 2022-08-18
Publication date: 2022-11-15
Also published as: WO2024036786A1

Abstract

The application discloses battery module heating control method, electronic equipment and storage medium, the last heating module that is used for promoting battery module temperature that is provided with of battery module and the switch module that is used for controlling power supply to charge battery module, this method includes: when the temperature of the battery module is lower than a first preset temperature, when a power supply is connected and the switch module is in an off state, controlling the heating module to work; when the switch module enters a conducting state from a turn-off state, acquiring the required power of the heating module and the power supply power of the power supply; when the power supply power is smaller than the required power, the heating module is forbidden to work; and when the power supply power is greater than the required power, controlling the heating module to work. The battery energy consumption control system controls the heating module through the relation between the required power and the power supply power of the heating module, the heating module is forbidden to work when the power supply power is too small, and the condition that the battery is damaged due to the fact that the battery energy consumption is needed to supply to the heating module when external input is too low is avoided.

Description

Battery module heating control method, electronic device, and storage medium

Technical Field

The application relates to the technical field of battery heating, in particular to a battery module heating control method, energy storage equipment and a storage medium.

Background

Batteries such as lithium iron phosphate batteries are commonly used in equipment such as household energy storage equipment, mobile energy storage equipment, solar energy and wind power generation energy storage equipment, and have the advantages of quick charging, high temperature resistance and the like. However, the lithium iron phosphate battery has poor battery performance at low temperature, so that equipment using the lithium iron phosphate battery cannot work normally at low temperature. The lithium iron phosphate battery which is charged shows that the lithium iron phosphate battery cannot be charged under the low-temperature condition, so the battery is often heated by adopting a mode of additionally arranging a heating device.

However, in practical situations, if the heating device is added and not controlled, the battery may be damaged, and the performance and the service life of the battery are reduced.

Disclosure of Invention

In order to solve the above technical problem, embodiments of the present application provide a battery module heating control method and apparatus, an electronic device, a computer-readable storage medium, and a computer program product.

According to an aspect of an embodiment of the present application, there is provided a battery module heating control method including: when the temperature of the battery module is lower than a first preset temperature, acquiring the access state of the power supply and the on-off state of the switch module; when the power supply is switched on and the switch module is in a turn-off state, controlling the heating module to work; when the switch module enters the on state from the off state, acquiring the required power for the heating module to keep working and the power supply power provided by the power supply; when the power supply power is smaller than the required power, the heating module is forbidden to work; and when the power supply power is greater than the required power, controlling the heating module to work.

According to an aspect of an embodiment of the present application, there is provided a battery module heating control apparatus including: the detection unit is used for acquiring the access state of the power supply and the on-off state of the switch module when the temperature of the battery module is lower than a first preset temperature; the control unit is used for controlling the heating module to work when the power supply is switched on and the switch module is in a turn-off state; the acquisition unit is used for acquiring the required power of the heating module for keeping working and the power supply power provided by the power supply when the switch module enters the conducting state from the switching-off state; the execution unit is used for forbidding the heating module to work when the power supply power is smaller than the required power; and the control module is also used for controlling the heating module to work when the power supply power is greater than the required power.

In another exemplary embodiment, the method further comprises: acquiring a power threshold range corresponding to the required power, wherein the power threshold range comprises a maximum power value and a minimum power value; if the power supply power is larger than the maximum power value, determining that the power supply power is larger than the required power; and if the power supply power is smaller than the maximum power value, determining that the power supply power is smaller than the required power.

In another exemplary embodiment, the method further comprises: when the temperature of the battery module is lower than the first preset temperature, controlling the switch module to be switched off; and when the temperature of the battery module is greater than or equal to the first preset temperature, controlling the switch module to be switched on.

In another exemplary embodiment, the method further comprises: detecting a load access state; and when the load access is detected, controlling the switch module to be conducted.

In another exemplary embodiment, the acquiring the on-off state of the switch module includes: monitoring a real-time discharge current value of the battery module; and if the real-time discharge current value is detected to be larger than or equal to a preset current threshold value, determining that the switch module is in a conducting state.

In another exemplary embodiment, after inhibiting the heating module from operating when the supply power is less than the required power, the method further includes: controlling the heating module to start working after a preset time, and increasing the restart frequency of the heating module by one; executing the steps of acquiring the required power for the heating module to keep working and the power supply power provided by the power supply when the power supply is connected and the switch module is in a conducting state, prohibiting the heating module from working when the power supply power is smaller than the required power, and controlling the heating module to work when the power supply power is larger than the required power; if the heating module stops working again and the restarting time of the heating module exceeds the preset restarting time, resetting the restarting time and sending a charging prohibition instruction; and the charging forbidding instruction is used for indicating the power supply to stop inputting energy to the battery module.

In another exemplary embodiment, the method further comprises: acquiring the temperature of the battery module; and if the temperature of the battery module is higher than a second preset temperature, controlling the heating module to stop working.

In another exemplary embodiment, the operation time of the heating module is counted while controlling the operation of the heating module; and when the working time length is longer than the preset heating time length, controlling the heating module to stop working.

According to an aspect of an embodiment of the present application, there is provided an electronic device including: a battery module; one or more processors; a storage device for storing one or more programs that, when executed by the one or more processors, cause the electronic device to implement the battery module heating control method as described above.

According to an aspect of embodiments of the present application, there is provided a computer-readable storage medium having stored thereon computer-readable instructions, which, when executed by a processor of a computer, cause the computer to execute the battery module heating control method as described above.

According to an aspect of embodiments herein, there is provided a computer program product or computer program comprising computer instructions stored in a computer readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device executes the battery module heating control method provided in the various alternative embodiments described above.

In the technical scheme provided by the embodiment of the application, when the temperature of the battery module is lower than a first preset temperature, the access state of the power supply and the on-off state of the switch module are obtained; when the power supply is connected and the switch module is in an off state, controlling the heating module to work; when the switch module enters the on state from the off state, acquiring the required power for the heating module to keep working and the power supply power provided by the power supply; when the power supply power is smaller than the required power, the heating module is forbidden to work; and when the power supply power is greater than the required power, controlling the heating module to work. Therefore, after the heating module is controlled to work, when the switch module is detected to enter a conducting state, according to the relation between the required power for keeping the work of the obtained heating module and the power supply power provided by the power supply, the heating module is controlled to be closed or continuously opened, the heating module is forbidden to work when the power supply power is too low, the condition that the battery is damaged due to the fact that battery energy needs to be consumed to supply to the heating module when external input is too low is avoided, and therefore the performance of the battery is improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and, together with the description, serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

FIG. 1 is a schematic illustration of an implementation environment to which the present application relates;

FIG. 2 is a schematic diagram of a circuit configuration used in one embodiment in the implementation environment of FIG. 1;

FIG. 3 is a schematic diagram of a circuit configuration used in one embodiment in the implementation environment of FIG. 1;

FIG. 4 is a flow chart illustrating a method of controlling heating of a battery module in accordance with an exemplary embodiment of the present application;

FIG. 5 is a flow chart of step S401 in the embodiment shown in FIG. 4 in an exemplary embodiment;

FIG. 6 is a flow chart of steps S404 through S405 in the embodiment of FIG. 4 in an exemplary embodiment;

FIG. 7 is a flow diagram in an exemplary embodiment of step S403 when a load access is detected in the embodiment shown in FIG. 4;

FIG. 8 is a flow chart of step S403 in the embodiment shown in FIG. 4 in an exemplary embodiment;

FIG. 9 is a flowchart of the restart heating module steps included after step S404 in the embodiment shown in FIG. 4 in an exemplary embodiment;

FIG. 10 is a flowchart in an exemplary embodiment of the steps of controlling a heating module to stop operating in a battery module heating control method of the present application;

FIG. 11 is a flowchart of steps for controlling the heat modules to cease operation during operation of the heat modules of a battery module heating control method of the present application in an exemplary embodiment;

fig. 12 is a block diagram illustrating a battery module heating control apparatus according to an exemplary embodiment of the present application;

FIG. 13 is a schematic block diagram of a computer system suitable for implementing the energy storage device of an embodiment of the present application.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

The block diagrams shown in the figures are functional entities only and do not necessarily correspond to physically separate entities. I.e. these functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor means and/or microcontroller means.

The flow charts shown in the drawings are merely illustrative and do not necessarily include all of the contents and operations/steps, nor do they necessarily have to be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the actual execution sequence may be changed according to the actual situation.

Reference to "a plurality" in this application means two or more. "and/or" describe the association relationship of the associated objects, meaning that there may be three relationships, e.g., A and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

In the related art, batteries, such as lithium iron phosphate batteries, are commonly used in devices such as household energy storage devices, mobile energy storage devices, solar energy devices, wind power generation energy storage devices, and the like, and have the advantages of rapid charging, high temperature resistance, and the like. However, the lithium iron phosphate battery has poor battery performance at low temperature, so that equipment using the lithium iron phosphate battery cannot work normally at low temperature. It is shown in the charged lithium iron phosphate battery that charging of the lithium iron phosphate battery cannot be achieved at low temperature because, during low-temperature charging, the intercalation and lithium plating reactions of lithium ions on the graphite electrode of the battery are simultaneous and competitive with each other, and diffusion of lithium ions in graphite is suppressed at low temperature, so that the conductivity of the electrolyte is reduced, leading to a reduction in intercalation rate and a lithium plating reaction on the graphite surface is more likely to occur.

In order to solve the above problems, embodiments of the present application provide a battery module heating control method and apparatus, an electronic device, a computer-readable storage medium, and a computer program product, which will be described in detail below.

Referring first to fig. 1, fig. 1 is a schematic diagram of an implementation environment related to the present application. The implementation environment includes a battery device 10, a charging device 20, and a power supply 30. The charging device 20 is provided with a power access interface through which the power supply 30 can be accessed and a battery interface through which the battery device 10 can be accessed. In the case that the power supply 30 and the battery device 10 are connected simultaneously and the battery device 10 needs to be charged, the charging device 20 connected to the power supply 30 can charge the battery device 10.

It is understood that the battery device 10 includes a controller (not shown) by which control of the operation of the heating film module can be performed.

Referring to fig. 2, fig. 2 is a schematic circuit diagram of the battery device 10, the charging device 20, and the power supply 30 in the implementation environment shown in fig. 1 according to an embodiment.

The battery device 10 comprises a battery module 11, a heating module 12 and a switch module 13, the charging device 20 comprises an inverter 21, and the power supply 30 comprises a photovoltaic panel 31. The inverter 21 includes a battery interface for connecting the battery device 10, and the battery device 10 is connected to the inverter 21 and can be discharged or charged to the outside through the inverter. The inverter 21 further includes an external power input interface for accessing the power supply 30, and the power supply 30 can be used for charging the battery pack or supplying power to the load after voltage conversion is performed by the inverter 21.

In some embodiments, a capacitor is connected in parallel to the battery interface of the inverter 21, and this capacitor is referred to as a port capacitor in this application, and when a load is powered or a battery module is charged, the voltage of the port capacitor is the output voltage of the inverter 21. A current sensing device, for example, a current sensing resistor R2 in fig. 2, may be disposed on the output loop of the port capacitor to detect the output current of the inverter. A current sensing device, such as a current sensing resistor R1 in fig. 2, may be disposed on the charge/discharge circuit of the battery device 10 to detect the charge/discharge current of the battery device.

As shown in fig. 2, the photovoltaic panel 31 is used as the power supply 30, and of course, the power supply 30 is not limited to the photovoltaic panel 31, and other energy inputs, such as DC power input, AC input, or a combination of the above different types of power inputs, may be used in practical applications. The switching module 13 includes a first switching tube. It is understood that the switch tube may be a switch tube having a switching function, such as a Metal-Oxide-semiconductor field-effect transistor (MOSFET), an IGBT (insulated gate bipolar transistor), an Insulated Gate Bipolar Transistor (IGBT), and the like, and the application is not limited thereto, and the following description will continue with the MOS tube as an example.

With continued reference to fig. 2, as shown, the heating module 12 is juxtaposed with the battery module 11 for heating the battery module. The heating module 12 is formed by connecting a heating resistance wire and two switches in series. It will be appreciated that the number of switches may also be one. The operation or non-operation of the heating module 12 can be controlled by setting a switch, and when the operation of the heating module 12 is prohibited, the control switch is turned off, and then the heating module 12 is not connected into the circuit. When the heating film module 12 is allowed to work, the control switch is conducted, and the heating module 12 is connected into the circuit to work.

As shown in fig. 1 and fig. 2, the battery device 10 is configured to obtain an on-state of the power supply 30 of the charging device 20 and an on-off state of the switch module of the battery device 10 when detecting that the temperature of the battery module of the battery device is lower than a first preset temperature; when the power supply 30 is connected and the switch module is in a turn-off state, controlling the heating module of the battery device 10 to work; when the switch module enters the on state from the off state, acquiring the required power for keeping the heating module working and the power supply power provided by the charging device 20; when the power supply power is smaller than the required power, the heating module is forbidden to work; and when the power supply power is greater than the required power, controlling the heating module to work. That is, when the photovoltaic panel 22 is connected and the switch module 13, i.e., the first MOS, is in the off state, the heating module 12 is controlled to operate; when the first MOS enters the on state from the off state, the required power at which the heating module 12 remains operating is acquired, and the supply power provided by the photovoltaic panel 22 is acquired through the inverter 21. When the power supply power is smaller than the required power, the heating module 12 is forbidden to work; and when the power supply power is larger than the required power, controlling the heating module 12 to work. Through the operation of the control circuit, the situation that when the input of the external photovoltaic panel 22 is too low or unstable, the energy of the battery module 11 needs to be consumed to supply the energy to the heating module 12 so as to damage the battery is avoided.

Fig. 3 is another schematic circuit diagram of the battery device 10, the charging device 20, and the power supply 30 in the implementation environment shown in fig. 1. As shown in the figure, the switch module 13 further includes a second MOS, and the second MOS and the first MOS are connected in series in a reverse direction to form a bidirectional switch, which can implement bidirectional cutoff to control on or off of the charge and discharge circuit of the battery module. When the temperature of the battery module 11 is detected to be lower than the first preset temperature, the on-off state of the switch module 13 is acquired, and the photovoltaic panel 22 access state of the charging device 20 transmitted by the smart inverter 21 is received.

It should be noted that, when the switch module includes two MOS transistors, the on-off state of the switch module 13 represents a case where the first MOS and the second MOS are simultaneously turned on.

It is understood that in the circuit shown in fig. 3, the first MOS and the second MOS are connected in series in an opposite direction to form a bidirectional switch to control the battery module to discharge or receive charge. When the first MOS is switched off, the charging loop is cut off, and the power supply can not charge the battery module. When the second MOS is switched off, the discharge loop is cut off, and the battery module cannot discharge outwards. Under the low temperature state, because the battery can't normally charge, in order to avoid the trouble, first MOS is in the off-state usually, and at this moment, battery module accessible is in the second MOS of on-state and the body diode of first MOS is to external discharge, but the discharge current is minimum, if the discharge current exceeds preset threshold, in order to avoid first MOS high temperature damage, then first MOS will be switched on usually.

It is to be understood that the circuit configurations shown in fig. 2 and 3 are merely illustrative, and the battery device 10, the charging device 20, and the power supply 30 may include more or less electrical components than those shown in fig. 2 and 3, or have different components than those shown in fig. 2 and 3. Each of the components shown in fig. 2 and 3 may be implemented in hardware, software, or a combination thereof.

Fig. 4 is a flowchart illustrating a battery module heating control method according to an exemplary embodiment of the present application. The method may be applied to the implementation environment shown in fig. 1 and is specifically performed by the battery device 10 in the embodiment environment shown in fig. 1. In other embodiments, the method may be performed by a device in other embodiments, and the embodiment is not limited thereto.

As shown in fig. 4, in an exemplary embodiment, the battery module heating control method may include steps S401 to S405, which will be described in detail below.

Step S401, when the temperature of the battery module is lower than a first preset temperature, the access state of the power supply and the on-off state of the switch module are obtained.

During the charging of the battery module, the temperature of the battery module is detected in real time, for example, by providing a temperature sensor on the battery module. When the temperature of the battery module is detected to be lower than a first preset temperature, namely, the battery module is in a low-temperature state, the battery module made of the lithium iron carbonate material is in a poor charging performance condition due to low temperature, and the heating module for increasing the temperature of the battery module can be controlled by the battery module heating control method provided by the application. Firstly, the access state of a power supply and the on-off state of a switch module are obtained, and the heating module is preliminarily controlled through the access state and the on-off state. The specific value of the first preset temperature can be set according to actual requirements. For example, the first preset temperature may be 2 degrees celsius, or 5 degrees celsius, or other temperature values, as long as the first preset temperature meets a temperature threshold that can represent a low temperature characteristic difference of the iron carbonate lithium battery, which is not limited herein.

And S402, when the power supply is connected and the switch module is in a turn-off state, controlling the heating module to work.

The acquisition of the access state of the power supply and the on-off state of the switch module can be directly or indirectly carried out. Taking the circuit structure applied in the embodiments shown in fig. 2 and fig. 3 as an example, the access state of the power supply may be confirmed according to the access state of the external power input interface sent by the smart inverter. For example, when a photovoltaic panel is connected, the connection state is characterized as the connection of a PV power supply, which indicates that a power supply is connected at this time. The on-off state of the switch module can be obtained by directly passing through the on-off state of the first MOS in the switch module, for example, the state of the first MOS transistor can be confirmed by detecting the passing current of the first MOS transistor, and when the first MOS transistor is in the off state, the passing current of the first MOS transistor is 0 or extremely small. At low temperature, when the power supply is connected but the switch module is not turned on, at this time, the charge-discharge loop circuit of the battery module does not form a path, that is, the charging device does not charge the battery module. At this time, the battery device cannot acquire the energy supplied by the power supply. After the power supply is connected, because the temperature of the battery module is lower than the first preset temperature, namely when the battery module is in a low-temperature state, the charging performance is poor, and the switch module cannot be immediately switched on. Based on this, after detecting power supply and inserting, can control heating module and begin work to promote battery module temperature.

Step S403, when the switch module enters the on state from the off state, acquiring a required power for the heating module to keep working and a power supply power provided by the power supply.

If the acquired access state is characterized as any power supply access, the power supply is accessed, and the heating module of the battery module can be heated or the battery module can be charged. If the obtained on-off state is characterized as being on, it indicates that the first MOS of the switch module is on, that is, at this time, a charge-discharge loop of the battery module forms a path, and the battery module has a risk of discharging to the outside.

As described above, when the switch module is not turned on, the charge/discharge circuit of the battery module does not form a path, the battery device cannot obtain the power supply provided by the external power supply, and the switch module is not turned on immediately after the external power supply is connected. Therefore, after the intervention of the power supply is detected, the heating module is controlled to start to work, so that when the on-off state of the switch module is on, the required power required by the heating module for keeping working can be obtained immediately due to the fact that the heating module works, and the power supply power provided by the charging device to the battery device at the port can be obtained immediately, and the power supply power is the power supply power actually provided to the battery device by the power supply after being converted by the intelligent inverter.

And S404, prohibiting the heating module from working when the power supply power is less than the required power.

After the required power for keeping the heating module working and the power supply power provided by the power supply are obtained, the value between the power supply power and the required power is compared, and the comparison result comprises that the power supply power is smaller than the required power or the power supply power is larger than the required power.

If the power supply power is smaller than the required power, it indicates that the energy provided by the power supply is not enough to drive the heating module to work, so as to raise the temperature of the battery module and ensure that the battery module is normally charged at low temperature. At this time, the voltage difference battery module provides energy to the heating module, so that in order to avoid consuming the energy of the battery module, when the power supply power is smaller than the required power, the heating module is controlled to be forbidden to work, and the battery module is prevented from being damaged.

And S405, controlling the heating module to work when the power supply power is greater than the required power.

If the power supply power is larger than the required power, the energy provided by the power supply is enough to drive the heating module to work, the heating module is continuously controlled to work until the battery module meets the exit condition of battery heating, the heating module is controlled to stop working, and the battery module enters a normal charging program.

As can be seen from the above, in the method provided in this embodiment, the temperature of the battery module is monitored in real time, and when the temperature of the battery module is less than the first preset temperature, the access state of the power supply and the on-off state of the switch module are obtained. When the power supply is connected and the switch module is in an off state, the heating module is controlled to work. When the power supply is connected and the switch module is in a conducting state, the required power for keeping the heating module to work and the power supply power provided by the power supply are obtained, the relation between the required power and the power supply power is obtained, and whether the battery module can consume the energy of the battery module to drive the heating module to work or not is judged according to the relation between the required power and the power supply power. When the power supply power is smaller than the required power, the heating module is forbidden to work; and when the power supply power is greater than the required power, the heating module is continuously controlled to heat the battery module. Through the scheme, the condition that the battery is damaged due to the fact that the energy of the battery module needs to be consumed to supply the energy to the heating module when the input of the external power supply is too low can be avoided, and the performance and the service life of the battery are improved.

Referring to fig. 5, fig. 5 is a flowchart illustrating a battery module heating control method according to another exemplary embodiment of the present application. Step S401 of the battery module heating control method shown in fig. 5 may include steps S501 to S503, which are described in detail as follows.

And S501, monitoring the temperature of the battery module in real time.

The temperature of the battery module influences the charging performance of the battery in the battery module, and the temperature of the battery module is influenced by various factors, such as the ambient temperature, the operating environment of the equipment where the battery module is located, so that the temperature of the battery module is monitored in real time, the sensing sensitivity to the temperature of the battery module can be improved, the heating module is efficiently controlled, and the situation that the battery module consumes self energy cannot occur at low temperature.

And S502, controlling the switch module to be conducted when the temperature of the battery module is greater than or equal to a first preset temperature.

The utility model discloses a temperature of battery module, including the iron carbonate lithium cell, the iron carbonate lithium cell is connected to the switch module, wherein, first preset temperature is the temperature threshold value that can embody the low temperature characteristic difference of iron carbonate lithium cell that this application set up according to the demand, so when the temperature of battery module is greater than or equal to first preset temperature, it is less to explain that the performance of battery module receives the influence of temperature, can charge and discharge, so when monitoring that the temperature of battery module is greater than or equal to first preset temperature, the control switch module switches on, can charge by battery module when the access power supply.

It is understood that, in some embodiments, the first preset temperature may be an allowable charging temperature set according to a battery temperature characteristic difference, i.e., greater than the temperature, allowing the battery to be charged. At this time, the temperature of the battery module can still be further raised by the heating module, so that the battery reaches a normal charging state.

And S503, when the temperature of the battery module is lower than a first preset temperature, controlling the switch module to be switched off, and acquiring the access state of the power supply and the on-off state of the switch module.

When the temperature of the battery module is lower than a first preset temperature, the switch module can be controlled to be turned off, namely the battery module cannot be charged under the low-temperature condition lower than the first preset temperature, the heating module used for improving the temperature of the battery module is controlled by the battery module heating control method, the access state of the power supply and the on-off state of the switch module are firstly acquired, and the heating module is preliminarily controlled through the access state and the on-off state.

The method for controlling heating of the battery module in this embodiment is implemented on the basis that the temperature of the battery module is lower than the first preset temperature, and is to avoid the situation that the energy of the battery module needs to be consumed to supply the heating module to damage the performance and the service life of the battery module due to too small energy of an external power supply when the temperature of the battery module of the lithium iron phosphate cannot be charged due to low temperature and the temperature of the battery module needs to be raised by the heating module. And when the battery module is higher than the first preset temperature, the switch module is controlled to be switched on, the battery module is allowed to receive charging, the charging requirement of a user can be responded to the maximum extent on the premise of ensuring the safety of the battery module, and the battery module is charged as soon as possible when the user needs to charge the battery module.

Referring to fig. 6, fig. 6 is a flowchart illustrating a battery module heating control method according to another exemplary embodiment of the present application. The method for controlling heating of a battery module shown in fig. 6 further includes steps S601 to S603 based on the embodiment shown in fig. 4, and the following steps are described in detail:

step S601, a power threshold range corresponding to the required power is obtained, where the power threshold range includes a maximum power value and a minimum power value.

In this embodiment, the required power required to keep the heating module operating corresponds to a power threshold range that includes a maximum power value and a minimum power value. After obtaining the power threshold range, the power threshold range is applied to the comparison between the required power and the supplied power, that is, the supplied power is compared with the maximum power value and the minimum power value of the power threshold range, respectively.

In this embodiment, the difference between the maximum power value and the minimum power value may be set according to a requirement, for example, the difference is set to 1, so as to avoid that, after the power threshold range corresponding to the required power and the power supply power are obtained, when the value of the power supply power is close to the value of the required power, the power supply power repeatedly jumps between "being smaller than the required power" and "being greater than the required power" due to dynamic change of the power supply power, so that the heating module is repeatedly turned on and off, and damage is caused to the heating module.

Step S602, if the power supply power is larger than the maximum power value, the power supply power is determined to be larger than the required power, and the heating module is controlled to work.

The power threshold range corresponds to the required power, so when the power supply power is greater than the maximum power value corresponding to the power threshold range, the power supply power is determined to be greater than the required power corresponding to the power threshold range, the energy provided by the power supply is enough to drive the heating module to work, the heating module is continuously controlled to work at the moment, the heating module is controlled to stop working until the battery module meets the exit condition of battery heating, and the battery module enters a conventional charging process.

Step S603, if the power supply power is smaller than the maximum power value, determining that the power supply power is smaller than the required power, and prohibiting the heating module from operating.

If the power supply power is smaller than the maximum power value, the power supply power is determined to be smaller than the required power, which indicates that the energy provided by the power supply is not enough to drive the heating module to work, so that the temperature of the battery module is increased to ensure that the battery module is normally charged at a low temperature. Therefore, in order to avoid consuming the energy of the battery module, when the power supply power is less than the required power, the heating module is controlled to be forbidden to work.

In the embodiment, when the power supply power and the required power are compared, the corresponding power threshold range is set for the required power, the maximum value and the minimum value of the power supply power and the power threshold range are compared, and the heating module and even the battery module are prevented from being damaged due to repeated opening and closing of the heating module when the power supply power fluctuates around the required power.

Referring to fig. 7, fig. 7 is a flowchart illustrating a battery module heating control method according to another exemplary embodiment of the present application. In the method for controlling heating of a battery module shown in fig. 7, based on the embodiment shown in fig. 4, step S403 may include steps S701 to S702, which are described in detail as follows:

and step S701, detecting the load access state after the power supply is accessed.

And when the power supply is determined to be accessed from the acquired power supply access state, synchronously detecting the access state of the load. The load is accessed through the output interface of the intelligent inverter and needs a power supply or a battery module to provide energy for the intelligent inverter to operate.

Taking the circuit of fig. 2 or fig. 3 as an example, the output interface of the smart inverter may be connected in parallel to both sides of the port capacitor, and the output voltage thereof is determined by the voltage of the port capacitor.

Step S702, when it is detected that the load is connected, the switch module is controlled to be turned on, and the required power and the power supply power provided by the power supply are obtained.

When the load is connected, the load needs to obtain energy to operate, so the required power comprises the power required by the heating film to keep working and the power required by the load. Then, in steps S404 to S405 of the embodiment shown in fig. 4, the heating module is controlled according to the supplied power and the required power obtained in the embodiment.

Referring to fig. 8, fig. 8 is a flowchart illustrating a battery module heating control method according to another exemplary embodiment of the present application. In the method for controlling heating of a battery module shown in fig. 8, based on the embodiment shown in fig. 4, step S403 may include steps S801 to S802, which are described in detail as follows:

step S801, when the power supply is connected, the real-time discharge current value of the battery module is monitored.

Switch on of switch module, still probably because the reduction of power supply, lead to battery module's port voltage to be drawn low, when port voltage is drawn low to battery module's below the voltage, just need battery module to provide energy for heating module, battery module just has the discharge current and outwards transmits through the body diode in the switch module this moment, when discharge current reaches certain condition, can make switch module switch on. For example, when the switch module includes the first MOS, when the discharge current is transmitted to the outside through the switch module, the discharge current flows through the body diode in the first MOS, which causes the temperature of the device to rise very quickly, and easily causes the device to be damaged. For the first MOS, the discharge current passing through the body diode in the off state is much smaller than the discharge current passing through the body diode in the on state, and therefore, the on state of the first MOS, that is, the on state of the switch module, can be determined by detecting the discharge current.

Therefore, after the power supply is determined to be in the access state, the real-time discharge current value of the battery module needs to be detected in real time, and whether the switch module is in the conduction state is judged according to the real-time discharge current value.

Step S802, if it is detected that the real-time discharging current value is greater than or equal to the preset current threshold, it is determined that the switch module is in a conducting state, and the required power for the heating module to keep working and the power supply provided by the power supply are obtained.

In this embodiment, the discharging current value capable of turning on the switch module is set as the preset current threshold value, so that if it is detected that the real-time discharging current value of the battery module is greater than or equal to the preset current threshold value, it is determined that the switch module is in the on state, and the required power for keeping the heating module working and the power supply power provided by the power supply are obtained. Then, in steps S404 to S405 of the embodiment shown in fig. 4, the heating module is controlled according to the supplied power and the required power obtained in the embodiment. The preset current threshold may be 1A, or may be other values set according to requirements or specific application scenarios, which is not limited herein.

Therefore, by the method of the embodiment shown in fig. 7 and 8, the switch module in the on state may correspond to the battery module discharging caused by the load access or the reduction of the power supply.

According to the technical scheme of the embodiment, when the power supply is detected to be connected and the switch module is in the conducting state, the heating module is controlled to be turned off or continuously turned on according to the relation between the acquired corresponding required power and the power supply provided by the power supply, and the heating module is forbidden to work when the power supply is too low, so that the condition that the battery is damaged due to the fact that battery energy needs to be consumed to supply to the heating module when the external input is too low is avoided, and the performance of the battery is improved.

Referring to fig. 9, fig. 9 is a flowchart illustrating a battery module heating control method according to another exemplary embodiment of the present application. In the method for controlling heating of a battery module shown in fig. 9, on the basis of the embodiment shown in fig. 4, step S404 may be followed by step S901 to step S903, which are described in detail as follows:

and step S901, controlling the heating module to start working after the preset time, and adding one to the restart times of the heating module.

In an implementation environment with the photovoltaic panel as a power supply, the corresponding power supply power changes along with the environment, so after the power supply power is detected to be smaller than the required power and the heating module is prohibited from working, the heating module is restarted after the preset time for judging whether the power supply power at the moment meets the condition for controlling the heating module to continue working, and the restarting frequency of the heating module is increased by one.

And S902, when the power supply is connected and the switch module is in a conducting state, acquiring the required power for keeping the heating module working and the power supply power provided by the power supply, prohibiting the heating module from working when the power supply power is smaller than the required power, and controlling the heating module to work when the power supply power is larger than the required power.

And after the heating module is restarted, repeating the steps of acquiring the required power and the power supply power and controlling the heating module according to the relation between the required power and the power supply power.

And step S903, if the heating module stops working again and the restarting number of the heating module exceeds the preset restarting number, resetting the restarting number and sending a charging prohibition instruction.

Restarting the heating module consumes the energy of the battery module, and frequent restarting of the heating module can lead to the battery electric quantity to be too low or even exhaust the battery electric quantity, so the preset restarting times are set in the embodiment, and the heating module is not restarted after the restarting times reach the preset restarting times.

Specifically, when the heating module stops working due to the fact that the power supply power is smaller than the snowball power, and the accumulated restart times in step S901 exceed the preset restart times, the restart times are cleared and a charging prohibition instruction is issued, where the charging prohibition instruction is used for instructing the power supply to stop inputting energy to the battery module. And if the power supply needs to input energy into the battery module again, manual operation is needed for realizing the operation.

Therefore, through the embodiment, the dynamic power supply is ensured to be circularly processed for multiple times, whether the power supply can support the heating module to continuously work is judged, the number of times of circular judgment is limited, the battery is protected, and excessive power consumption is avoided.

Referring to fig. 10, fig. 10 illustrates a method for controlling heating of a battery module according to two exemplary embodiments of the present application. As shown in fig. 10, on the basis of the above embodiment, the battery module heating control method may further include steps S1001 to S1003. Whether the battery module satisfies the predetermined exit heating condition is determined through the above steps, which will be described in detail below.

Step S1001, a temperature of the battery module and temperatures of the plurality of battery cells are acquired.

When the battery module starts to be used, the temperatures of the battery module and a plurality of battery cells included in the battery module are acquired in real time until the battery module is not used any more.

And step S1002, if the temperature of the battery module is higher than a second preset temperature, controlling the heating module to stop working.

In this embodiment, the second preset temperature may be regarded as a temperature condition for recovering the battery module from normal charging, that is, the temperature of the battery module is raised to exceed the second preset temperature by heating the heating module or raising the ambient temperature, so that the battery module does not need to heat the heating module to raise the temperature of the battery module any more, and the heating module is controlled to stop working. In this embodiment, the second preset temperature may be set to 10 degrees celsius, or may be a temperature value greater than 10 degrees celsius, as long as the temperature threshold condition capable of reflecting the normal charging recovery of the iron carbonate lithium battery is met, which is not specifically limited herein.

And step S1003, when the temperature difference between any two battery cores is larger than the temperature difference threshold value, controlling the heating module to stop working.

Including a plurality of electric cores in the battery module, heating battery module through heating module is exactly to the heating of a plurality of electric cores, when detecting that the temperature difference of two arbitrary electric cores is greater than the difference in temperature threshold value, explains that electric core is heated inhomogeneous or electric core breaks down etc. no matter what kind of reason leads to the temperature difference, continues to heat electric core and uses a plurality of electric cores and all has the potential safety hazard, so control heating module stop work.

It should be noted that, in step S1001, the acquisition of the temperatures of the battery module and the plurality of battery cells is performed in real time and synchronously, so that there is no temporal precedence between step S1002 and step S1003, and the heating module can be controlled to stop operating as long as at least one of the conditions of exiting heating of the temperature difference between the battery module and the battery cell is satisfied at any time.

Like this, when this embodiment is through beginning to use battery module, just acquire the temperature of battery module and a plurality of electric cores that battery module includes in real time to whether the temperature of battery module or a plurality of electric cores that judge the acquisition satisfies the condition of withdrawing from the heating according to the second temperature of predetermineeing and the difference in temperature threshold value, control heating module stop work immediately after satisfying the condition of withdrawing from the heating, resources are saved.

Referring to fig. 11, fig. 11 illustrates a battery module heating control method according to two exemplary embodiments of the present application. As shown in fig. 11, on the basis of the above embodiment, the battery module heating control method may further include steps S1101 to S1103. Whether the battery module satisfies the preset exit heating condition is determined through the above steps, which will be described in detail below.

Step S1101, when controlling the heating module to work, counting the working time of the heating module, and simultaneously determining the working state of the heating module.

When the heating module is controlled to start working, the working time of the heating module starts to be counted, and the real-time working state of the heating module is determined, wherein the working state comprises normal heating and heating fault.

And step S1102, controlling the heating module to stop working when the working time length is longer than the preset heating time length. When the working time is longer than the preset heating time, it is indicated that the temperature of the battery module in the preset heating time still does not reach the temperature capable of being normally charged at the conventional temperature through the heating of the heating module, and the continuous control of the working of the heating module can cause the waste of resources and cost, so that the heating module is controlled to stop working.

And S1103, controlling the heating module to stop working when the working state is heating failure.

When the working state of the heating module is heating fault, the heating module is not suitable for continuous working at the moment, and the condition of poor heating effect and even potential safety hazard exists in the continuous working process, so that the heating module is controlled to stop working.

It should be noted that since the counting of the operation time period and the checking of the operation state of the heater module in step S1101 are started and continued at the same time, there is no chronological relationship between step S1102 and step S1103, and the heater module can be controlled to stop operating as long as at least one of the conditions for stopping heating is satisfied at any time when the operation of the heater module is controlled.

Therefore, in the embodiment, after the heating module is controlled to start to work, whether the heating module meets the condition of quitting heating is judged through the working time length and the working state of the heating module, and the heating module is controlled to stop working immediately after the condition of quitting heating is met.

Fig. 12 is a block diagram illustrating a battery module heating control apparatus 1200 according to an exemplary embodiment of the present application. As shown in fig. 12, the apparatus includes a detection unit 1201, a control unit 1202, an acquisition unit 1203, and an execution unit 1204.

The detecting unit 1201 is configured to acquire an access state of the power supply and an on-off state of the switch module when the temperature of the battery module is lower than a first preset temperature.

And the control unit 1202 is used for controlling the heating module to work when the power supply is connected and the switch module is in a turn-off state.

The obtaining unit 1203 is configured to obtain required power for the heating module to keep operating and power supply power provided by the power supply when the switching module enters the on state from the off state.

The execution unit 1204 is configured to prohibit the heating module from operating when the power supply power is less than the required power; and the control module is also used for controlling the heating module to work when the power supply power is greater than the required power.

In another exemplary embodiment, the detecting unit 1201 is further configured to control the switch module to turn off when the temperature of the battery module is less than a first preset temperature; and when the temperature of the battery module is greater than or equal to a first preset temperature, controlling the switch module to be switched on.

In another exemplary embodiment, the control unit 1202 is further configured to detect a load access status; when the load is detected to be connected, the switch module is controlled to be conducted; the real-time discharge current value of the battery module is monitored; and if the real-time discharge current value is detected to be larger than or equal to the preset current threshold value, determining that the switch module is in a conducting state.

In another exemplary embodiment, the execution unit 1204 is further configured to obtain a power threshold range corresponding to the required power, where the power threshold range includes a maximum power value and a minimum power value; if the power supply power is larger than the maximum power value, determining that the power supply power is larger than the required power; and if the power supply power is smaller than the maximum power value, determining that the power supply power is smaller than the required power.

In another exemplary embodiment, the apparatus further comprises a restart unit.

The restarting unit is used for controlling the heating module to start working after the preset time and adding one to the restarting frequency of the heating module; executing the steps of acquiring the required power for keeping the heating module working and the power supply power provided by the power supply when the power supply is connected and the switch module is in a conducting state, prohibiting the heating module from working when the power supply power is smaller than the required power, and controlling the heating module to work when the power supply power is larger than the required power; if the heating module stops working again and the restarting time of the heating module exceeds the preset restarting time, resetting the restarting time and sending a charging prohibition instruction; the charging prohibition instruction is used for instructing the power supply to stop inputting energy to the battery module.

The device realizes the battery module heating control method provided by the application, detects the temperature of the battery module through the detection unit 1201, and acquires the access state of the power supply and the on-off state of the switch module when the temperature is lower than a first preset temperature. The detection unit 1201 transmits the access state and the on-off state to the control unit 1202 and the acquisition unit 1203, and when the power supply is accessed and the switch module is in the off state, the control unit 1202 controls the heating module to work. When the power supply is connected and the switch module is in a conducting state, the obtaining unit 1203 obtains the required power for the heating module to keep working and the power supply power provided by the power supply, and obtains the relationship between the required power and the power supply power, and the execution unit 1204 determines whether the battery module consumes energy of the battery module to drive the heating module to work according to the relationship between the required power and the power supply power. When the power supply power is smaller than the required power, the execution unit 1204 prohibits the heating module from working; when the power supply is greater than the required power, the execution unit 1204 will continue to control the heating module to perform the heating operation of the battery module, thereby avoiding the situation that the battery is damaged due to the fact that the input of the external power supply is too low and the energy of the battery module needs to be consumed to supply the heating module, and improving the performance and the service life of the battery.

It should be noted that the battery module heating control device provided in the foregoing embodiment and the battery module heating control method provided in the foregoing embodiment belong to the same concept, wherein specific ways for the respective modules and units to perform operations have been described in detail in the method embodiments, and are not described herein again. In practical applications, the battery module heating control device provided in the above embodiment may distribute the above functions by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the above described functions, which is not limited herein.

An embodiment of the present application further provides an electronic device, including: a battery module; one or more processors; a storage device for storing one or more programs, which when executed by one or more processors, cause an electronic apparatus to implement the battery module heating control method provided in the above-described respective embodiments.

It is understood that the electronic device may be a stand-alone battery pack, and the battery pack may form an energy storage system together with the inverter and the power supply shown in fig. 2 or fig. 3. The electronic device may also be any energy storage device including a battery module, an inverter is integrated in the device, and the energy storage device may form a microgrid system with an external power supply, such as an ac power supply and a dc power supply. The product form of the electronic device is not limited in the present application, and any device including or needing a suitable battery may implement the battery module heating method in the above embodiments through an internal integrated or externally accessed processor.

FIG. 13 illustrates a schematic block diagram of a computer system suitable for use in implementing the energy storage device of embodiments of the present application. It should be noted that the computer system 1300 of the electronic device shown in fig. 13 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiments of the present application.

As shown in fig. 13, a computer system 1300 includes a Central Processing Unit (CPU) 1301 that can perform various appropriate actions and processes, such as performing the methods in the above-described embodiments, according to a program stored in a Read-only memory (ROM) 1302 or a program loaded from a storage portion 1308 into a Random Access Memory (RAM) 1303. In the RAM1303, various programs and data necessary for system operation are also stored. The CPU1301, the ROM1302, and the RAM1303 are connected to each other via a bus 1304. An Input/Output (I/O) interface 1305 is also connected to bus 1304.

The following components are connected to the I/O interface 1305: an input portion 1306 including a keyboard, a mouse, and the like; an output section 1307 including, for example, a Cathode Ray Tube (CRT), a Liquid Crystal Display (LCD), and a speaker; a storage portion 1308 including a hard disk and the like; and a communication section 1309 including a network interface card such as a LAN (local area network) card, a modem, or the like. The communication section 1309 performs communication processing via a network such as the internet. The drive 1310 is also connected to the I/O interface 1305 as needed. A removable medium 1311 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is mounted on the drive 1310 as necessary, so that a computer program read out therefrom is mounted into the storage portion 1308 as necessary.

In particular, according to embodiments of the present application, the processes described above with reference to the flow diagrams may be implemented as computer software programs. For example, embodiments of the present application include a computer program product comprising a computer program embodied on a computer readable medium, the computer program comprising a computer program for performing the method illustrated by the flow chart. In such embodiments, the computer program may be downloaded and installed from a network through communications component 1309 and/or installed from removable media 1311. When the computer program is executed by a Central Processing Unit (CPU) 1301, various functions defined in the system of the present application are executed.

It should be noted that the computer readable medium shown in the embodiments of the present application may be a computer readable signal medium or a computer readable storage medium or any combination of the two. The computer readable storage medium may be, for example, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples of the computer readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a flash memory, an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the present application, a computer-readable signal medium may comprise a propagated data signal with a computer-readable computer program embodied therein, either in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. The computer program embodied on the computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wired, etc., or any suitable combination of the foregoing.

The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present application. Each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams or flowchart illustration, and combinations of blocks in the block diagrams or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

The units described in the embodiments of the present application may be implemented by software, or may be implemented by hardware, and the described units may also be disposed in a processor. Wherein the names of the elements do not in some way constitute a limitation on the elements themselves.

Another aspect of the present application also provides a computer-readable storage medium on which a computer program is stored, the computer program implementing the foregoing battery module heating control method when executed by a processor. The computer-readable storage medium may be included in the electronic device described in the above embodiment, or may exist separately without being incorporated in the electronic device.

Another aspect of the application also provides a computer program product or computer program comprising computer instructions stored in a computer readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device executes the battery module heating control method provided in the above-described embodiments.

The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed.

Claims

1. A heating control method for a battery module is characterized in that the battery module is provided with a heating module for raising the temperature of the battery module and a switch module for controlling a power supply to charge the battery module, and the method comprises the following steps:

when the temperature of the battery module is lower than a first preset temperature, acquiring the access state of the power supply and the on-off state of the switch module;

when the power supply is switched on and the switch module is in a turn-off state, controlling the heating module to work;

when the switch module enters the conducting state from the turn-off state, acquiring the required power for the heating module to keep working and the power supply power provided by the power supply;

when the power supply power is smaller than the required power, the heating module is forbidden to work;

and when the power supply power is greater than the required power, controlling the heating module to work.

2. The method of claim 1, further comprising:

acquiring a power threshold range corresponding to the required power, wherein the power threshold range comprises a maximum power value and a minimum power value;

if the power supply power is larger than the maximum power value, determining that the power supply power is larger than the required power;

and if the power supply power is smaller than the maximum power value, determining that the power supply power is smaller than the required power.

3. The method of claim 1, further comprising:

when the temperature of the battery module is lower than the first preset temperature, controlling the switch module to be switched off;

and when the temperature of the battery module is greater than or equal to the first preset temperature, controlling the switch module to be switched on.

4. The method of claim 1, further comprising:

detecting a load access state;

and when the load access is detected, controlling the switch module to be conducted.

5. The method of claim 1, wherein the obtaining the on-off state of the switch module comprises:

monitoring a real-time discharge current value of the battery module;

and if the real-time discharge current value is detected to be larger than or equal to a preset current threshold value, determining that the switch module is in a conducting state.

6. The method of claim 1, wherein after inhibiting operation of the heating module when the supply power is less than the required power, the method further comprises:

controlling the heating module to start working after a preset time, and adding one to the restart times of the heating module;

executing the steps of acquiring the required power for the heating module to keep working and the power supply power provided by the power supply when the power supply is connected and the switch module is in a conducting state, prohibiting the heating module from working when the power supply power is smaller than the required power, and controlling the heating module to work when the power supply power is larger than the required power;

if the heating module stops working again and the restarting time of the heating module exceeds the preset restarting time, resetting the restarting time and sending a charging prohibition instruction; the charging prohibition instruction is used for instructing the power supply to stop inputting energy to the battery module.

7. The method of claim 1, further comprising:

acquiring the temperature of the battery module;

and if the temperature of the battery module is higher than a second preset temperature, controlling the heating module to stop working.

8. The method of claim 1, further comprising:

when the heating module is controlled to work, counting the working time of the heating module;

and when the working time length is longer than the preset heating time length, controlling the heating module to stop working.

9. An electronic device, comprising:

a battery module; one or more processors;

storage means for storing one or more programs that, when executed by the one or more processors, cause the electronic device to implement the battery module heating control method according to any one of claims 1 to 8.

10. A computer-readable storage medium having stored thereon computer-readable instructions that, when executed by a processor of a computer, cause the computer to perform the battery module heating control method according to any one of claims 1 to 8.