WO2021189324A1 - Procédé de chauffage de batterie, dispositif de charge, système, batterie et plateforme mobile - Google Patents

Procédé de chauffage de batterie, dispositif de charge, système, batterie et plateforme mobile Download PDF

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Publication number
WO2021189324A1
WO2021189324A1 PCT/CN2020/081202 CN2020081202W WO2021189324A1 WO 2021189324 A1 WO2021189324 A1 WO 2021189324A1 CN 2020081202 W CN2020081202 W CN 2020081202W WO 2021189324 A1 WO2021189324 A1 WO 2021189324A1
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WIPO (PCT)
Prior art keywords
battery
temperature
charging
duty cycle
charging device
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PCT/CN2020/081202
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English (en)
Chinese (zh)
Inventor
许柏皋
肖丹
周韦博
李鹏
林宋荣
金海涛
Original Assignee
深圳市大疆创新科技有限公司
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Priority to PCT/CN2020/081202 priority Critical patent/WO2021189324A1/fr
Publication of WO2021189324A1 publication Critical patent/WO2021189324A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the batteries in the embodiments of the present application relate to the technical field, and in particular, to a battery heating method, a charging device, a system, a battery, and a movable platform.
  • the structure of movable platforms (such as drones, robots, unmanned vehicles, etc.) is becoming more and more complex, and newly developed functions are continuously integrated. Due to the increase of new functions, the requirements of various industries for the power quality and power management of mobile platforms have also increased. Take the drone as an example.
  • the drone uses battery power, and the electrical energy output by the battery is used as the power supply and power source for the drone's flight control. When the battery of the drone is exhausted, the battery needs to be charged in time to ensure the continued use of the drone.
  • the drone’s battery will be heated until the temperature of the battery is not less than the preset value to stop heating, and then start to charge the battery. Charging the battery at this temperature can ensure battery life Charging efficiency. However, if the temperature of the battery drops below the preset value after a period of time, stop charging the battery, and reheat the drone’s battery until the battery temperature is not less than the preset value, stop heating, and then recharge the battery. Charging batteries. Repeat this operation several times until the battery is fully charged. However, from the beginning of charging to the end of charging, the battery is not in a constant temperature process, so the charging process will affect the service life of the battery.
  • the embodiments of the present application provide a battery heating method, a charging device, a system, a battery, and a movable platform, so that the temperature of the battery is basically constant during the charging process, and the service life of the battery is improved.
  • an embodiment of the present application provides a battery heating method, including:
  • a first duty cycle is obtained, the first duty cycle is related to the ambient temperature of the environment in which the battery is located, and the first duty cycle is used to indicate that the heating device is controlled to The battery is heated intermittently;
  • the heating device is controlled to intermittently heat the battery.
  • an embodiment of the present application provides a battery heating method, including:
  • the information to be heated is related to the temperature of the environment where the battery is located, and the information to be heated is used to indicate information for controlling a heating device to heat the battery;
  • an embodiment of the present application provides a charging device, including: a processor and a charging interface;
  • the processor is configured to obtain a first duty cycle in the process of charging the battery through the charging interface, where the first duty cycle is related to the ambient temperature of the environment in which the battery is located, and the first The duty cycle is used to indicate a signal for controlling the heating device to intermittently heat the battery; and according to the first duty cycle, the heating device is controlled to intermittently heat the battery.
  • an embodiment of the present application provides a battery, including: a processor and a charging interface;
  • the processor is configured to obtain a first duty cycle when the charging device charges the battery through the charging interface, and the first duty cycle information is related to the ambient temperature of the environment in which the battery is located.
  • the first duty ratio is used to indicate a signal for controlling the heating device to intermittently heat the battery; and according to the first duty ratio, the heating device is controlled to intermittently heat the battery.
  • an embodiment of the present application provides a battery, including: a processor, a charging interface, and a communication interface;
  • the processor acquires the ambient temperature of the environment in which the battery is located during the process of charging the battery by the charging device through the charging interface; and acquires the information to be heated according to the ambient temperature, and the information to be heated is the same as The temperature of the environment in which the battery is located is related, and the information to be heated is used to indicate information for controlling the heating device to heat the battery; the information to be heated is sent to the charging device through the communication interface, so that the The charging device controls the heating device to heat the battery according to the information to be heated, so that the temperature of the battery during the charging process is substantially constant.
  • an embodiment of the present application provides a charging system, including: a battery and a charging device;
  • the battery is used to obtain the environmental temperature of the environment in which the battery is located during the process of charging the battery by the charging device; obtain a first duty cycle according to the environmental temperature, and the first duty cycle is the same as The temperature of the environment where the battery is located is related, and the first duty cycle is used to indicate that the heating device is controlled to intermittently heat the battery; the first duty cycle is sent to the charging device;
  • the charging device is configured to obtain the first duty ratio sent by the battery, and control the heating device to intermittently heat the battery according to the first duty ratio.
  • an embodiment of the present application provides a movable platform, a fuselage, and the battery according to the embodiment of the present application in the fourth aspect, or the fuselage and the battery according to the embodiment of the present application in the fifth aspect.
  • the battery is arranged in the battery compartment of the body.
  • an embodiment of the present application provides a computer-readable storage medium, the computer-readable storage medium stores a computer program, the computer program includes at least one piece of code, the at least one piece of code can be executed by a computer to control the The computer executes the battery heating method described in the embodiment of the present application in the first aspect or the second aspect.
  • an embodiment of the present application provides a computer program, when the computer program is executed by a computer, it is used to implement the battery heating method described in the embodiment of the present application in the first aspect or the second aspect.
  • the battery heating method, charging device, system, battery, and movable platform compensate for the battery's own heat loss caused by the low temperature environment of the battery by intermittently heating the battery during the charging of the battery by the charging device , To ensure that the battery's own temperature remains basically constant during the charging process, and the battery's own temperature will not be interrupted due to the battery's own temperature, ensuring that the battery is in a continuous charging state, improving the charging efficiency of the battery, and increasing the service life of the battery.
  • Fig. 1 is a schematic architecture diagram of an unmanned aerial system according to an embodiment of the present application
  • FIG. 2 is a schematic diagram of a charging box provided by an embodiment of the application.
  • FIG. 3 is an internal schematic diagram of a battery provided by an embodiment of the application.
  • FIG. 4 is a schematic top view of a heating device and electric core provided by an embodiment of the application.
  • FIG. 5 is a flowchart of a battery heating method provided by an embodiment of the application.
  • FIG. 6 is a flowchart of a battery heating method provided by another embodiment of this application.
  • FIG. 7 is a flowchart of a battery heating method provided by another embodiment of the application.
  • FIG. 8 is a flowchart of a battery heating method provided by another embodiment of the application.
  • FIG. 9 is a schematic structural diagram of a charging device provided by an embodiment of the application.
  • FIG. 10 is a schematic structural diagram of a battery provided by an embodiment of the application.
  • FIG. 11 is a schematic structural diagram of a battery provided by another embodiment of the application.
  • FIG. 12 is a schematic structural diagram of a charging system provided by an embodiment of this application.
  • FIG. 13 is a schematic structural diagram of a movable platform provided by an embodiment of this application.
  • the use of mobile platforms is more frequent.
  • the drone uses battery power, and the electrical energy output by the battery is used as the power supply and power source for the drone's flight control. When the battery of the drone is exhausted, the battery needs to be charged in time to ensure the continued use of the drone.
  • the drone’s battery will be heated until the temperature of the battery is not less than the preset value to stop heating, and then start to charge the battery. Charging the battery at this temperature can ensure battery life Charging efficiency.
  • the inventor found that if the temperature of the battery drops below the preset value after a period of time, the charging of the battery is stopped, and the battery of the drone is heated again until the temperature of the battery is not less than the preset value, and then the heating is stopped. Charge the battery again. Repeat this operation several times until the battery is fully charged. However, from the beginning of charging to the end of charging, the battery is not in a constant temperature process, so the charging process will affect the service life of the battery.
  • the embodiments of the present application provide a battery heating method, a charging device, a system, a battery, and a movable platform.
  • the heating device In the process of charging the battery with the charging device, by controlling the power supply to the heating device, the heating device is used to heat the battery so that the battery is basically charged at a constant temperature to offset the heat loss caused by the low-temperature external environment.
  • the movable platform can be a handheld phone, a handheld PTZ, unmanned aerial vehicle, unmanned vehicle, unmanned boat, robot, or self-driving car, etc.
  • the following description of the mobile platform of this application uses drones as an example. It will be obvious to those skilled in the art that other types of drones can be used without restriction, and the embodiments of the present application can be applied to various types of drones.
  • the drone can be a small or large drone.
  • the drone may be a rotorcraft, for example, a multi-rotor drone that is propelled through the air by a plurality of propulsion devices.
  • the embodiments of the present application are not limited to this, and the drone It can also be other types of drones.
  • Fig. 1 is a schematic architecture diagram of an unmanned aerial system according to an embodiment of the present application.
  • a rotary wing drone is taken as an example for description.
  • the unmanned aerial system 100 may include a drone 110, a display device 130, and a remote control device 140.
  • the UAV 110 may include a power system 150, a flight control system 160, a frame, and a pan/tilt 120 carried on the frame.
  • the drone 110 can wirelessly communicate with the remote control device 140 and the display device 130.
  • the drone 110 further includes a battery (not shown in the figure). The battery is placed in a battery compartment of the battery, and the battery provides electrical energy for the power system 150.
  • the UAV 110 may be an agricultural UAV or an industrial application UAV, and there is a need for cyclic operation. Correspondingly, the battery also has the need for cyclic operation.
  • the frame may include a fuselage and a tripod (also called a landing gear).
  • the fuselage may include a center frame and one or more arms connected to the center frame, and the one or more arms extend radially from the center frame.
  • the tripod is connected with the fuselage and used for supporting the UAV 110 when it is landed.
  • the power system 150 may include one or more electronic governors (referred to as ESCs) 151, one or more propellers 153, and one or more motors 152 corresponding to the one or more propellers 153, wherein the motors 152 are connected to Between the electronic governor 151 and the propeller 153, the motor 152 and the propeller 153 are arranged on the arm of the UAV 110; the electronic governor 151 is used to receive the driving signal generated by the flight control system 160 and provide driving according to the driving signal Current is supplied to the motor 152 to control the speed of the motor 152.
  • the motor 152 is used to drive the propeller to rotate, thereby providing power for the flight of the drone 110, and the power enables the drone 110 to realize one or more degrees of freedom of movement.
  • the drone 110 may rotate about one or more rotation axes.
  • the aforementioned rotation axis may include a roll axis (Roll), a yaw axis (Yaw), and a pitch axis (pitch).
  • the motor 152 may be a DC motor or an AC motor.
  • the motor 152 may be a brushless motor or a brushed motor.
  • the flight control system 160 may include a flight controller 161 and a sensing system 162.
  • the sensing system 162 is used to measure the attitude information of the drone, that is, the position information and state information of the drone 110 in space, such as three-dimensional position, three-dimensional angle, three-dimensional velocity, three-dimensional acceleration, and three-dimensional angular velocity.
  • the sensing system 162 may include, for example, at least one of sensors such as a gyroscope, an ultrasonic sensor, an electronic compass, an inertial measurement unit (IMU), a vision sensor, a global navigation satellite system, and a barometer.
  • the global navigation satellite system may be the Global Positioning System (GPS).
  • the flight controller 161 is used to control the flight of the drone 110, for example, it can control the flight of the drone 110 according to the attitude information measured by the sensor system 162. It should be understood that the flight controller 161 can control the drone 110 according to pre-programmed program instructions, and can also control the drone 110 by responding to one or more remote control signals from the remote control device 140.
  • the pan/tilt head 120 may include a motor 122.
  • the pan/tilt is used to carry the camera 123.
  • the flight controller 161 can control the movement of the pan/tilt 120 through the motor 122.
  • the pan/tilt head 120 may further include a controller for controlling the movement of the pan/tilt head 120 by controlling the motor 122.
  • the pan-tilt 120 may be independent of the drone 110 or a part of the drone 110.
  • the motor 122 may be a DC motor or an AC motor.
  • the motor 122 may be a brushless motor or a brushed motor.
  • the pan/tilt may be located on the top of the drone or on the bottom of the drone.
  • the photographing device 123 may be, for example, a device for capturing images, such as a camera or a video camera, and the photographing device 123 may communicate with the flight controller and take pictures under the control of the flight controller.
  • the imaging device 123 of this embodiment at least includes a photosensitive element, and the photosensitive element is, for example, a Complementary Metal Oxide Semiconductor (CMOS) sensor or a Charge-coupled Device (CCD) sensor. It can be understood that the camera 123 can also be directly fixed to the drone 110, so the pan/tilt 120 can be omitted.
  • CMOS Complementary Metal Oxide Semiconductor
  • CCD Charge-coupled Device
  • the display device 130 is located on the ground end of the unmanned aerial vehicle 100, can communicate with the drone 110 in a wireless manner, and can be used to display the attitude information of the drone 110.
  • the image photographed by the photographing device 123 may also be displayed on the display device 130. It should be understood that the display device 130 may be an independent device or integrated in the remote control device 140.
  • the remote control device 140 is located at the ground end of the unmanned aerial system 100, and can communicate with the drone 110 in a wireless manner for remote control of the drone 110.
  • a charging device is needed to charge the battery to increase the power of the battery, and then provide sufficient power for the drone again to ensure the normal operation of the drone.
  • drones basically work in an outdoor environment, and in most cases they work in the wild nature environment, so it is likely that the power is insufficient during the work in the wild nature environment, and it is necessary to promptly check in the current environment.
  • the battery is charged to ensure that the drone can continue to work.
  • the ambient temperature in the wild nature environment is low, the charging performance of the battery should be ensured.
  • the battery should be heated before charging to increase the battery's own temperature to the preset charging temperature, and then start charging the battery.
  • the battery is currently in a low-temperature wild nature environment, and the temperature in this natural environment cannot be changed, and the low-temperature environment will cause the heat of the heated battery to dissipate, thereby causing the battery's own temperature to drop, which affects the charging of the battery. performance. Therefore, in order to ensure the charging performance of the battery when the temperature of the external environment of the battery cannot be changed, the battery's own temperature can be basically kept in a constant state during the battery charging process to prevent the battery's own temperature from falling to Preset charging temperature. Therefore, this application proposes a solution in which a heating device is used to intermittently heat the battery to offset the heat loss caused by the low-temperature external environment during the charging process of the battery using the charging device.
  • the charging device in this application may be a charger or a charging box.
  • the heating device mentioned in this application may be provided in the charging device.
  • the charging box 200 is provided with a battery compartment 201.
  • the battery compartment 201 is used to accommodate the battery 202.
  • the battery 202 can be placed in the battery compartment 201. Charge it.
  • a heating device is also provided in the charging box 200, and the heating device can heat the battery 202 in the battery compartment 201.
  • the heating device mentioned in this application may be provided in the battery.
  • a heating device 301 is provided in the battery, and the heating device 301 is formed with a plurality of cell positions. Each cell 302 in the battery cell group is contained in the cell position, so that the heating device 301 can Each battery cell is heated.
  • the heating device 301 may be a heating film.
  • each battery cell contains a battery cell as an example, and the upper and lower surfaces of the battery cell are in contact with the heating device.
  • the heating device 301 forms a plurality of battery cell positions, and each battery cell position contains two battery cells. The upper side of one battery cell is in contact with the heating device, and the other battery cell The lower side of the core is in contact with the heating device.
  • FIG. 5 is a flowchart of a battery heating method provided by an embodiment of this application. As shown in FIG. 5, the method of this embodiment can be applied to a charging device or a battery. The method of this embodiment may include:
  • a duty cycle for controlling the heating device to intermittently heat the battery is obtained, and the duty cycle is referred to as the first duty cycle.
  • the first duty cycle is related to the ambient temperature of the environment where the battery is located.
  • the ambient temperature of the environment where the battery is located is different, and the corresponding first duty cycle may also be different.
  • the first duty cycle is 0.5, it can mean that there is a time duration of 0.5 seconds in each second that the heating device heats the battery, and the heating device does not heat the battery for another 0.5 seconds.
  • the first control signal in the process of charging the battery by the charging device, the first control signal may be obtained, and the first control signal includes the first duty cycle.
  • the first control signal may also include other information, for example, the voltage and/or current for charging the battery, so as to charge the battery while heating the battery.
  • the heating device is controlled to heat the battery intermittently, so that the battery is charged during the charging process.
  • the battery's own temperature is basically constant.
  • the method of this embodiment can be applied to a charging device. If the heating device is provided in the battery, the charging device controls the heating device of the battery to intermittently heat the battery. If the heating device is provided in the charging device, the charging device controls the heating device of the charging device to intermittently heat the battery.
  • the method of this embodiment can be applied to a battery. If the heating device is provided in the battery, the battery controls the heating device of the battery to heat the battery intermittently. If the heating device is provided in the charging device, the battery controls the heating device of the charging device to intermittently heat the battery.
  • the first duty cycle is obtained during the process of charging the battery by the charging device, and the first duty cycle is related to the ambient temperature of the environment where the battery is located; and according to the first duty cycle Than, controlling the heating device to intermittently heat the battery.
  • the heating device By intermittently heating the battery during the charging of the battery by the charging device, the battery's own heat loss caused by the low-temperature environment of the battery is compensated to ensure that the battery's own temperature remains basically constant during the charging process, not due to the battery's own temperature
  • the charging process of the battery is interrupted to ensure that the battery is in a continuous charging state, the charging efficiency of the battery is improved, and the service life of the battery is increased.
  • the larger the first duty cycle the longer the continuous heating time during the intermittent heating of the battery by the heating device.
  • the first duty cycle is 0.5, which means that the duration of continuous heating in each second is 0.5 seconds, and the heating device stops heating the battery for another 0.5 seconds; for example, the first duty cycle is 0.2 means that the duration of continuous heating in each second is 0.2 seconds, and the heating device stops heating the battery for another 0.8 seconds. This also means that the larger the first duty cycle, the more heat the battery gets during the charging process.
  • the first duty cycle is negatively related to the ambient temperature.
  • FIG. 6 is a flowchart of a battery heating method provided by another embodiment of this application. As shown in FIG. 6, the method of this embodiment can be applied to a charging device or For batteries, the method of this embodiment may include:
  • the ambient temperature of the environment where the battery is located is obtained.
  • a temperature detection device can be provided in the battery, and the temperature detection device can detect the temperature of the battery itself.
  • a temperature detection device may be provided in the charging device, and the temperature detection device can detect the temperature of the charging device itself.
  • the foregoing S601 may have the following two implementation modes:
  • the battery's own temperature obtained from the battery when the charging device establishes a connection with the battery is the ambient temperature.
  • the charging device and the battery can communicate with each other.
  • the battery can obtain the battery's own temperature detected by the battery's temperature detection device, and pass the battery's own temperature through the battery and the charging device.
  • the communication signal is sent to the charging device. Since the charging device has not started to charge the battery when the charging device is connected to the battery, the battery's own temperature has not been affected by the heat generated during the charging process, and the heating device has not begun to heat the electricity, and the battery's own temperature has not yet been affected.
  • the heating device generates heat, so the battery's own temperature at this time is close to the ambient temperature of the environment where the battery is located. Therefore, the charging device can determine the battery's own temperature when the charging device is connected to the battery as the ambient temperature.
  • the temperature detection device of the charging device can detect the temperature of the charging device. Since the charging device and the battery are in the same environment, the charging device can detect the temperature of the charging device detected by the temperature detection device. Determine the ambient temperature of the environment where the battery is located. Optionally, in order to avoid the influence of the charging device on the heat generated during the charging of the battery, this embodiment may determine the temperature of the charging device detected by the temperature detecting device of the charging device when the charging device is connected to the battery as the ambient temperature.
  • the foregoing S601 may have the following two implementation modes:
  • the temperature detection device of the battery detects the temperature of the battery when the charging device establishes a connection with the battery. Since the charging device has not started to charge the battery when the charging device is connected to the battery, the battery's own temperature has not been affected by the heat generated during the charging process, and the heating device has not begun to heat the electricity, and the battery's own temperature has not yet been affected. The heating device generates heat, so the battery's own temperature at this time is close to the ambient temperature of the environment where the battery is located. Therefore, the battery can determine the battery's own temperature when the charging device is connected to the battery as the ambient temperature.
  • the temperature detection device of the charging device can detect the own temperature of the charging device, and the charging device can send the own temperature of the charging device detected by the temperature detection device to the battery. Since the charging device and the battery are in the same environment, the battery can determine the temperature of the charging device as the ambient temperature of the environment where the battery is located. Optionally, in order to avoid the influence of the charging device on the heat generated during the charging of the battery, this embodiment may determine the temperature of the charging device obtained from the charging device when the charging device is connected to the battery as the ambient temperature.
  • the duty cycle used to control the heating device to intermittently heat the battery is determined, which is called the first duty cycle.
  • the first duty ratio is determined according to the preset charging temperature of the battery and the aforementioned ambient temperature.
  • the first duty cycle is positively correlated with the preset charging temperature.
  • the polarization of the battery cell can be reduced, the charging current of the battery can be increased, and the purpose of fast charging can be achieved.
  • the preset charging temperature may be stored locally in the battery in advance. If the method of this embodiment is applied to a charging device, after the charging device is connected to the battery, the battery can send the preset charging temperature of the battery to the charging device through the communication signal between the charging device and the battery. Correspondingly, before obtaining the first duty cycle, the charging device obtains the preset charging temperature of the battery from the battery.
  • the first duty ratio is determined according to the battery's own temperature and the above-mentioned ambient temperature in the process of charging the battery by the charging device.
  • the first duty cycle is negatively related to the battery's own temperature.
  • the battery's own temperature will also change. If the battery's own temperature is lower, in order to maintain the battery's own temperature basically constant during the charging of the battery by the charging device, the battery needs to be compensated More heat, so the larger the first duty cycle, the longer the continuous heating time during the gap heating of the heating device. Therefore, it is possible to dynamically adjust the first duty cycle according to the battery's own temperature, so that the battery's own temperature is basically constant after intermittent heating, saving energy and avoiding overheating.
  • the battery's own temperature can be detected by the battery's temperature detection device. If the method of this embodiment is applied to a charging device, the battery will send the battery's own temperature to the charging device after acquiring the battery's own temperature detected by the battery's temperature detecting device during the charging of the battery by the charging device. Correspondingly, the charging device obtains the battery's own temperature from the battery when the charging device charges the battery.
  • the first duty ratio is determined according to the battery's own temperature, the aforementioned ambient temperature, and the preset charging temperature of the battery during the charging of the battery by the charging device. It can not only realize high-temperature charging, but also save energy and avoid overheating.
  • the determined first duty cycle is, for example, zero.
  • the charging device controls the electrical connection between the charging device and the heating device to be intermittently conducted according to the first duty ratio.
  • the heating device obtains electrical energy to make the heating device work.
  • the heating device generates heat during the working process, and the generated heat is used to heat the battery.
  • the charging device controls the charging device to output current to the heating device, so that the heating device generates heat.
  • the larger the current output by the charging device to the heating device the more heat generated by the heating device; the smaller the current output by the charging device to the heating device, the less heat generated by the heating device.
  • the battery controls the electrical connection between the battery cell group and the heating device to conduct intermittently according to the first duty ratio.
  • the heating device obtains electric energy to make the heating device work, and the heating device generates heat during the working process, and the generated heat is used to heat the battery.
  • the battery pack is electrically connected to the heating device, the battery controls the battery pack to output current to the heating device, so that the heating device generates heat.
  • the larger the current output by the battery cell group to the heating device the more heat the heating device generates; the smaller the current output by the battery cell group to the heating device, the less heat the heating device generates.
  • the drone is not in a low-temperature environment, and the first duty cycle is 0, there is no need to control the heating device to heat the battery, and there is no need to add additional heat to the battery.
  • the battery's own temperature It can also be basically constant.
  • the above-mentioned battery's own temperature will change during the charging process of the battery by the charging device, so the first duty cycle will also dynamically change, so the intermittent heating process is not necessarily fixed.
  • the battery is intermittently heated during the charging process of the battery by the charging device to compensate for the battery's own heat loss caused by the low-temperature environment of the battery, so as to ensure that the battery's own temperature is maintained during the charging process.
  • the charging device Basically constant, will not interrupt the battery charging process due to the battery's own temperature, ensure that the battery is in a continuous charging state, improve the charging efficiency of the battery, and increase the service life of the battery.
  • S604 and/or S605 may also be executed. It should be noted that the execution order of S604 and S605 is not limited.
  • the temperature detection device of the battery can detect the battery's own temperature during the process of charging the battery by the charging device.
  • the battery obtains the battery's own temperature detected by the battery's temperature detection device. Then the battery judges whether the battery's own temperature is greater than the preset temperature. If the battery's own temperature is greater than the preset temperature, it means that the battery's own temperature is too high and continuing to charge will be harmful to the battery.
  • the battery control charging device stops charging the battery, such as a battery Sending the charging stop instruction information to the charging device, and accordingly, the charging device stops the charging process of the battery according to the charging stop instruction information obtained from the battery.
  • the battery outputs a prompt message (for example, a flashing indicator light, or a buzzer sound through a buzzer), the prompt message is used to prompt that the battery's own temperature is greater than a preset temperature, and the user is informed of the prompt information After that, the connection between the battery and the charging device can be disconnected, and the charging process between the charging device and the battery can be stopped. Or, the battery control charging device stops charging the battery and outputs prompt information. If the battery's own temperature is less than or equal to the preset temperature, the battery continues to obtain the temperature detected by the temperature detection device, and determines whether the temperature is greater than the preset temperature.
  • a prompt message for example, a flashing indicator light, or a buzzer sound through a buzzer
  • the battery's temperature detection device detects the battery's own temperature, and the battery obtains the temperature detected by the temperature detection device and sends it to the charging device.
  • the charging device obtains the battery's own temperature during the process of charging the battery by the charging device from the battery. If the battery's own temperature is greater than the preset temperature, it means that the battery's own temperature is too high, and continuing to charge will be unfavorable to the battery.
  • the charging device controls the charging device to stop charging the battery, such as disconnecting the charging device and the battery cell group Electric connection.
  • the charging device outputs prompt information (for example, by flashing an indicator light, or buzzing through a buzzer), the prompt information is used to prompt that the battery's own temperature is greater than a preset temperature, and the user is informed of the prompt After the information, the connection between the battery and the charging device can be disconnected, and the charging process between the charging device and the battery can be stopped. Or, the charging device stops charging the battery and outputs prompt information. If the battery's own temperature is less than or equal to the preset temperature, the charging device continues to obtain the battery's own temperature from the battery, and determines whether the temperature is greater than the preset temperature.
  • prompt information for example, by flashing an indicator light, or buzzing through a buzzer
  • a timer is used to start timing.
  • the time counted is the length of time the charging device charges the battery, and then it is judged whether the charging device is charging the battery for less than the preset duration, if The time that the charging device charges the battery is greater than or equal to the preset time, indicating that the charging device has been charging the battery for too long.
  • the heating device is controlled to stop intermittent heating of the battery to save energy. If the time period during which the charging device charges the battery is less than the preset time period, then continue to obtain the time period during which the charging device charges the battery, and determine whether the time period is less than the preset time period.
  • the charging device before performing S601, before the charging device charges the battery, it can also be determined whether the battery's own temperature is less than the preset charging temperature. If the battery's own temperature is less than the preset charging temperature, the heating device is controlled to Battery heating. Until the battery's own temperature is greater than or equal to the preset charging temperature, the charging device is controlled to charge the battery. If the battery's own temperature is greater than the preset charging temperature, the charging device is controlled to charge the battery, and the heating device needs to be controlled to heat the battery before charging.
  • a possible implementation manner of controlling the heating device to heat the battery before executing S601 may include S600a and S600b.
  • the duty cycle for instructing and controlling the heating device to heat the battery is obtained.
  • the duty cycle at is called the second duty cycle.
  • a possible implementation manner for obtaining the second duty cycle in S600a is to determine the second duty cycle according to the battery's own temperature when the charging device is connected to the battery. Among them, the second duty cycle is negatively related to the battery's own temperature.
  • another possible implementation manner for obtaining the second duty cycle in S600a is to determine the second duty cycle according to the battery's own temperature and the preset charging temperature when the charging device is connected to the battery.
  • the second duty cycle is negatively correlated with the battery's own temperature
  • the second duty cycle is positively correlated with the preset charging temperature.
  • the second duty cycle may be a preset duty cycle, and the value of the second duty cycle is a default value and has nothing to do with the battery's own temperature.
  • the heating device is controlled to intermittently heat the battery according to the second duty ratio, until the battery's own temperature is greater than or equal to the preset charging temperature, stop controlling according to the second duty ratio The heating device heats the battery intermittently. Then control the charging device to charge the battery.
  • the second duty cycle is greater than the first duty cycle, so that the battery can quickly heat up before the charging device charges the battery.
  • the second duty ratio may be 0.5-1, for example.
  • the second duty cycle can be 1.
  • a second control signal may be obtained, and the second control signal includes a second duty cycle.
  • the second control signal may also include other information, such as information for indicating that the battery is in place. Therefore, it can be ensured that the battery is heated when the battery is in place.
  • the charging device determines whether the charging device is connected to the battery by detecting the presence of the battery while the charging device is charging the battery. Whether the battery is electrically connected. If it is determined that the charging device is electrically connected to the battery, the charging device continues to charge the battery, and in the process of charging the battery, continues to control the heating device to intermittently heat the battery according to the first duty ratio. If it is determined that the charging device is not connected to the battery, the charging device stops charging the battery and controls the heating device to stop intermittently heating the battery, so as to save energy and avoid power loss.
  • the battery when the battery supplies power to an external device, the battery also controls the battery pack to output current to the heating device, so that the heating device generates heat .
  • the battery's own temperature will not be too low.
  • the battery's own temperature can be maintained at the preset operating temperature basically constant, ensuring the battery's discharge performance.
  • an implementation manner for the battery to control the output current of the battery cell group to the heating device may be to control the output current of the battery cell group to the heating device according to the duty ratio, so that the heating device generates heat intermittently.
  • the above-mentioned first duty cycle can be replaced with a current, and the implementation principle is similar.
  • the current is determined according to the ambient temperature, and then the heating device is controlled to heat the battery according to the current.
  • the greater the current the more the heating device heats the battery.
  • the value of the current is negatively related to the ambient temperature, that is, the lower the ambient temperature, the greater the value of the current.
  • FIG. 7 is a flowchart of a battery heating method provided by another embodiment of the application.
  • the method in this embodiment may include:
  • the battery obtains the ambient temperature of the environment where the battery is located.
  • the battery obtains information to be heated according to the ambient temperature.
  • the battery obtains information indicating that the heating device is controlled to heat the battery according to the ambient temperature of the environment where the battery is located. This information is called information to be heated, and the information to be heated is related to the ambient temperature.
  • the to-be-heated information may be information used to control the current interval time, may be information used to indicate the magnitude of the current, or other information used to control the power-on and heat generation of the heating device.
  • the battery sends information to be heated to the charging device.
  • the charging device receives the information to be heated sent by the battery.
  • the charging device and the battery can communicate with each other.
  • the battery obtains the information to be heated, it sends the information to be heated to the charging device.
  • the battery sends the information to be heated to the charging device through a communication signal between the battery and the charging device. Accordingly, the charging device obtains the information to be heated from the battery.
  • the charging device controls the heating device to heat the battery according to the information to be heated.
  • the heating device is controlled to heat the battery during the charging process of the battery, so that the battery's own temperature during the charging process is basically Constant.
  • the heating device may be provided in the battery, or the heating device may be provided in the charging device.
  • the battery obtains the ambient temperature of the environment where the battery is located, and obtains the information to be heated according to the ambient temperature, and then sends all the information to the charging device. Describe the information to be heated.
  • the charging device controls the heating device to heat the battery to make up for the battery’s own heat loss caused by the low temperature environment in which the battery is located, so that the battery will lose energy during the charging process. Its own temperature is basically constant. The battery charging process will not be interrupted due to the battery's own temperature, ensuring that the battery is in a continuous charging state, improving the charging efficiency of the battery, and increasing the service life of the battery.
  • FIG. 8 is a flowchart of a battery heating method provided by another embodiment of the application.
  • the information to be heated includes the first duty cycle, heating
  • the device is set on the battery as an example, the method of this embodiment may include:
  • the battery obtains the ambient temperature of the environment where the battery is located.
  • the battery obtains a first duty cycle according to the ambient temperature.
  • the first duty cycle is related to the ambient temperature of the environment where the battery is located, and the first duty cycle is used to indicate that the heating device is controlled to perform gap heating on the battery.
  • the first duty cycle is negatively related to the ambient temperature.
  • the battery sends the first duty cycle to the charging device.
  • the charging device receives the first duty cycle sent by the battery.
  • the first duty cycle is sent to the charging device through a communication signal between the battery and the charging device. Accordingly, the charging device obtains the first duty ratio from the battery.
  • the charging device controls the heating device of the battery to heat the battery according to the first duty ratio.
  • S804 can refer to the related descriptions in the foregoing embodiments, and details are not described herein again.
  • S800a-S800d are also performed.
  • S800a When the charging device establishes a connection with the battery, the battery obtains the battery's own temperature detected by the battery temperature detection device.
  • a temperature detection device is provided in the battery.
  • the temperature detection device of the battery can detect the battery's own temperature. Accordingly, the battery can obtain the battery's own temperature when the charging device is connected to the battery through the temperature detection device.
  • the battery's own temperature is the battery's own temperature before the charging device charges the battery.
  • the battery determines a second duty cycle according to the battery's own temperature.
  • the second duty cycle is used to indicate that the heating device intermittently heats the battery before the charging device charges the battery.
  • how the battery determines the second duty cycle according to the battery's own temperature can refer to the relevant descriptions in the foregoing embodiments, which will not be repeated here.
  • an alternative way of S800a and S800b is that the battery obtains the second duty cycle stored in advance.
  • the second duty cycle in this embodiment is the default value.
  • the second duty cycle is greater than the first duty cycle.
  • the battery sends a second duty cycle to the charging device. Accordingly, the charging device obtains the second duty ratio from the battery.
  • the battery after the battery obtains the second duty cycle, it sends the second duty cycle to the charging device.
  • the battery sends the second duty cycle to the charging device through a communication signal between the battery and the charging device. Accordingly, the charging device obtains the second duty ratio from the battery.
  • the charging device controls the heating device of the battery to intermittently heat the battery according to the second duty cycle until the battery's own temperature is greater than or equal to the preset charging temperature.
  • the battery obtains the second duty cycle, and then the charging device obtains the second duty cycle from the battery, and controls the battery's operation according to the second duty cycle.
  • the heating device heats the battery intermittently until the battery's own temperature is greater than or equal to the preset charging temperature, and then the charging device starts to charge the battery.
  • the battery determines the first duty ratio according to the ambient temperature, and then the charging device obtains the first duty ratio from the battery, and controls the heating device of the battery to intermittently heat the battery according to the first duty ratio.
  • the two-stage duty cycle will control the heating device to intermittently heat the battery, which not only ensures that the battery can quickly heat up to the preset charging temperature, but also ensures that the battery's own temperature is basically constant during the charging process.
  • the battery charging process will not be interrupted due to the battery's own temperature, ensuring that the battery is in a continuous charging state, improving the charging efficiency of the battery, and increasing the service life of the battery.
  • the information to be heated includes the current that needs to be provided for the heating device.
  • the current is related to the ambient temperature, and the current is used to control the heating device to generate heat.
  • the current is negatively related to the ambient temperature. The lower the ambient temperature, the greater the current.
  • the implementation process of how to determine the current is similar to the implementation process of how to determine the duty cycle in the foregoing embodiments, and will not be repeated here.
  • the information to be heated includes the first duty cycle and the current that needs to be provided to the heating device, where the current of the heating device during the process of controlling the heating device to heat the battery according to the first duty cycle meets the above requirements.
  • the current supplied to the heating device includes the first duty cycle and the current that needs to be provided to the heating device.
  • the temperature detection device in the foregoing embodiments may be, for example, an NTC temperature sensor, but it is not limited thereto.
  • An embodiment of the present application also provides a computer storage medium, the computer storage medium stores program instructions, and the program execution may include part or all of the steps of the battery heating method in any of the above corresponding embodiments.
  • FIG. 9 is a schematic structural diagram of a charging device provided by an embodiment of this application.
  • the charging device 900 of this embodiment may include: a processor 901 and a charging interface 902.
  • the processor 901 is configured to obtain a first duty cycle in the process of charging the battery through the charging interface 902, where the first duty cycle is related to the ambient temperature of the environment in which the battery is located, and the The first duty ratio is used to indicate a signal for controlling the heating device to intermittently heat the battery; and according to the first duty ratio, the heating device is controlled to intermittently heat the battery.
  • the charging interface 902 is used to connect with the charging interface of the battery to charge the battery.
  • the larger the first duty cycle is, the longer the continuous heating time during the intermittent heating of the battery by the heating device.
  • the first duty cycle is negatively related to the ambient temperature.
  • the processor 901 is specifically configured to: obtain the first duty cycle sent by the battery; or, obtain the ambient temperature of the environment in which the battery is located, and determine the The first duty cycle.
  • the processor 901 is specifically configured to: obtain the battery's own temperature acquired from the battery when the charging device 900 establishes a connection with the battery as the ambient temperature, and the battery's own temperature The temperature is detected and obtained by the temperature detection device of the battery.
  • the charging device 900 further includes a temperature detection device 903.
  • the processor 901 is specifically configured to acquire the temperature of the charging device 900 detected by the temperature detection device 903 as the ambient temperature.
  • the processor 901 is further configured to obtain the battery during the charging of the battery through the charging interface 902 before determining the first duty cycle according to the ambient temperature.
  • the sent temperature of the battery itself is further configured to obtain the battery during the charging of the battery through the charging interface 902 before determining the first duty cycle according to the ambient temperature. The sent temperature of the battery itself.
  • the processor 901 determines the first duty cycle according to the ambient temperature, it is specifically configured to determine the first duty cycle according to the battery's own temperature and the ambient temperature.
  • the processor 901 is further configured to obtain a preset charging temperature of the battery sent by the battery before determining the first duty cycle according to the ambient temperature.
  • the processor 901 is specifically configured to determine the first duty ratio according to the preset charging temperature and the ambient temperature.
  • the processor 901 is further configured to control the heating device to heat the battery if the battery's own temperature is less than a preset charging temperature before charging the battery through the charging interface 902
  • the battery's own temperature is greater than or equal to the preset charging temperature.
  • the processor 901 is specifically configured to: before charging the battery through the charging interface 902, obtain a second duty cycle; according to the second duty cycle, control the heating device pair The battery is heated intermittently.
  • the processor 901 is specifically configured to: obtain the second duty cycle sent by the battery; or, obtain the battery information sent by the battery when the charging device 900 is connected to the battery.
  • the self temperature determines the second duty cycle according to the self temperature of the battery.
  • the processor 901 is specifically configured to: control the electrical connection between the charging device 900 and the heating device to conduct intermittently.
  • the heating device operates to heat the battery.
  • the processor 901 is further configured to: when the charging device 900 is electrically connected to the heating device, control the charging device 900 to output current to the heating device so that the heating device Generate heat.
  • the processor 901 is further configured to determine whether the charging device 900 and the battery are electrically charged by detecting the presence of the battery in the process of charging the battery through the charging interface 902. connect.
  • the processor 901 is specifically configured to determine the second duty cycle according to the battery's own temperature and a preset charging temperature.
  • the first duty cycle is negatively related to the battery's own temperature.
  • the first duty cycle is positively correlated with the preset charging temperature.
  • the second duty cycle is greater than the first duty cycle.
  • the processor 901 is further configured to control the heating device to stop intermittent heating of the battery if the duration of charging the battery through the charging interface 902 is greater than or equal to a preset duration.
  • the processor 901 is further configured to, in the process of charging the battery through the charging interface 902, if the battery's own temperature is greater than a preset temperature, control the charging device 900 to stop charging The battery is charged, and/or, a prompt message is output, and the prompt message is used to prompt that the battery's own temperature is greater than a preset temperature.
  • the heating device is provided on the battery.
  • the heating device is provided in the charging device 900.
  • the charging device 900 of this embodiment further includes a heating device 904.
  • the heating device 904 is the aforementioned heating device.
  • the processor 901 controls the heating device 904 to perform the aforementioned intermittent heating of the battery.
  • the heating device is a heating film.
  • the charging device 900 further includes a communication interface 905, which is used to communicate with the battery.
  • the communication interface 905 is configured to receive the first duty cycle, the second duty cycle, the temperature of the battery, and the preset charging temperature of the battery sent by the battery.
  • the communication interface 905 may also be used to send the temperature of the charging device 900 to the battery.
  • the communication interface 905 and the charging interface 902 can be integrated on the same physical interface.
  • the charging device 900 of this embodiment may further include a memory (not shown in the figure) for storing program codes.
  • the processor 901 calls the program code to implement the above solutions.
  • processors 901 are one or more, and one processor 901 is shown as an example in FIG. 9.
  • the charging device of this embodiment can be used to implement the technical solutions of the charging device in the foregoing method embodiments of the present application, and the implementation principles and technical effects are similar, and will not be repeated here.
  • FIG. 10 is a schematic structural diagram of a battery provided by an embodiment of the application.
  • the battery 1000 in this embodiment includes a processor 1001 and a charging interface 1002.
  • the battery 1000 further includes a battery pack 1003, charging the battery can be expressed as charging the battery pack 1003, and heating the battery can be expressed as heating the battery pack 1003.
  • the battery 1000 further includes: a temperature detection device 1004, which is used to detect the battery's own temperature.
  • the processor 1001 is configured to obtain a first duty cycle when the charging device charges the battery 1000 through the charging interface, and the first duty cycle information is related to the ambient temperature of the environment where the battery 1000 is located. Relatedly, the first duty ratio is used to indicate a signal for controlling the heating device to intermittently heat the battery 1000; and according to the first duty ratio, the heating device is controlled to intermittently heat the battery 1000.
  • the charging interface 1002 is used to connect with the charging interface of the charging device, so as to obtain electric energy from the charging device.
  • the larger the first duty cycle is, the longer the continuous heating time during the intermittent heating of the battery 1000 by the heating device.
  • the first duty cycle is negatively related to the ambient temperature.
  • the processor 1001 is specifically configured to: obtain the ambient temperature of the environment where the battery 1000 is located; and determine the first duty cycle according to the ambient temperature.
  • the processor 1001 is specifically configured to: acquire the battery's own temperature detected by the temperature detection device 1004 as the ambient temperature when the charging device establishes a connection with the battery 1000;
  • the self temperature of the charging device acquired by the charging device is the ambient temperature, and the self temperature of the charging device is detected and obtained by the temperature detection device of the charging device.
  • the processor 1001 is further configured to obtain the temperature of the battery 1000 detected by the temperature detection device 1004 before determining the first duty cycle according to the ambient temperature;
  • the processor 1001 determines the first duty cycle according to the ambient temperature, it is specifically configured to determine the first duty cycle according to the own temperature of the battery 1000 and the ambient temperature.
  • the processor 1001 is specifically configured to determine the first duty cycle according to a preset charging temperature of the battery and the ambient temperature.
  • the processor 1001 is further configured to control the battery 1000 if the temperature of the battery 1000 is lower than a preset charging temperature before the charging device charges the battery 1000 through the charging interface 1002
  • the heating device heats the battery 1000 until the temperature of the battery 1000 is greater than or equal to the preset charging temperature.
  • the processor 1001 is specifically configured to: before the charging device charges the battery 1000, obtain a second duty cycle; according to the second duty cycle, control the heating device to The battery 1000 is heated intermittently.
  • the processor 1001 is specifically configured to: obtain the temperature of the battery 1000 detected by the temperature detection device 1004 when the charging device establishes a connection with the battery 1000; Own temperature, determine the second duty cycle.
  • the processor 1001 is specifically configured to: control the electrical connection between the battery cell group 1003 and the heating device to conduct intermittently.
  • the heating device operates to heat the battery.
  • the processor 1001 is further configured to: when the battery cell group 1003 is electrically connected to the heating device, control the battery cell group 1003 to output current to the heating device so that the The heating device generates heat.
  • the processor 1001 is further configured to: when the battery 1000 supplies power to an external device, control the battery pack 1003 to output current to the heating device, so that the heating device generates heat.
  • the processor 1001 is specifically configured to determine the second duty cycle according to the own temperature of the battery 1000 and a preset charging temperature.
  • the first duty cycle is negatively related to the temperature of the battery 1000 itself.
  • the first duty cycle is positively correlated with the preset charging temperature.
  • the second duty cycle is greater than the first duty cycle.
  • the processor 1001 is further configured to: if the time period during which the charging device charges the battery 1000 through the charging interface 1002 is greater than or equal to a preset time period, control the heating device to stop charging the battery 1000 1000 for intermittent heating.
  • the processor 1001 is further configured to: when the charging device charges the battery 1000 through the charging interface 1002, if the temperature of the battery 1000 is greater than a preset temperature, control The charging device stops charging the battery 1000, and/or outputs prompt information for prompting that the temperature of the battery 1000 is greater than a preset temperature.
  • the heating device is provided on the charging device.
  • the heating device is provided in the battery 1000.
  • the battery 1000 of this embodiment further includes a heating device 1005.
  • the heating device 1005 is the aforementioned heating device.
  • the processor 1001 controls the heating device 1005 to perform the aforementioned intermittent heating of the battery 1000.
  • At least one surface of each cell of the cell group 1003 is in contact with the heating device 1005.
  • the heating device 1005 is a heating film.
  • the battery 1000 further includes a communication interface 1006, which is used to communicate with the charging device.
  • the communication interface 1006 is configured to send the first duty cycle, the second duty cycle, the temperature of the battery 1000, and the preset charging temperature of the battery 1000 to the charging device.
  • the communication interface 1006 may also be used to receive the own temperature of the charging device sent by the charging device.
  • the communication interface 1006 and the charging interface 1002 can be integrated on the same physical interface.
  • the battery 1000 of this embodiment may further include a memory (not shown in the figure) for storing program codes.
  • the processor 1001 calls the program code to implement the above solutions.
  • processors 1001 are one or more, and one processor 1001 is shown as an example in FIG. 10.
  • the battery of this embodiment can be used to implement the technical solution of the battery in the method embodiment shown in FIG. 5 or FIG. 6 of the present application, and its implementation principles and technical effects are similar, and will not be repeated here.
  • FIG. 11 is a schematic structural diagram of a battery provided by another embodiment of the application.
  • the battery 1100 in this embodiment includes a processor 1101, a charging interface 1102 and a communication interface 1103.
  • the battery 1100 further includes a battery cell group 1104, charging the battery can be expressed as charging the battery cell group 1104, and heating the battery can be expressed as heating the battery cell group 1104.
  • the battery 1100 further includes: a temperature detection device 1105, which is used to detect the battery's own temperature.
  • the processor 1101 obtains the ambient temperature of the environment in which the battery is located when the charging device charges the battery 1100 through the charging interface 1102; obtains the information to be heated according to the environmental temperature, and the information to be heated Related to the ambient temperature of the battery, the information to be heated is used to indicate information for controlling the heating device to heat the battery; the information to be heated is sent to the charging device through the communication interface 1103 to The charging device controls the heating device to heat the battery according to the information to be heated, so that the temperature of the battery during the charging process is substantially constant.
  • the charging interface 1102 is used to connect with the charging interface of the charging device, so as to obtain electric energy from the charging device.
  • the information to be heated includes a first duty cycle
  • the first duty cycle is related to the ambient temperature of the environment in which the battery is located
  • the first duty cycle is used to indicate that the heating device is The battery undergoes gap heating.
  • the information to be heated includes a current that needs to be provided for the heating device, the current is related to the ambient temperature, and the current is used to control the heating device to generate heat.
  • the greater the information to be heated the longer the continuous heating time during the intermittent heating of the battery by the heating device.
  • the information to be heated is negatively related to the ambient temperature.
  • the processor 1101 is specifically configured to obtain the temperature of the battery detected by the temperature detection device 1105 when the battery is connected to the charging device as the ambient temperature.
  • the charging device includes a temperature detecting device, and the temperature detecting device is used to detect the temperature of the charging device.
  • the processor 1101 is specifically configured to obtain the temperature of the charging device acquired from the charging device through the communication interface 1103 as the ambient temperature.
  • the processor 1101 is specifically configured to determine the information to be heated according to a preset charging temperature of the battery and the ambient temperature.
  • the processor 1101 is specifically configured to: obtain the battery's own temperature in the process of charging the battery through the charging interface 1102 by the charging device; according to the battery's own temperature and the ambient temperature , To determine the information to be heated.
  • the information to be heated is positively correlated with the preset charging temperature.
  • the information to be heated is positively correlated with the battery's own temperature.
  • the processor 1101 is further configured to obtain a second duty cycle before the charging device charges the battery through the charging interface 1102; and send the charging device to the charging device through the communication interface 1103.
  • the second duty cycle is such that the charging device intermittently heats the battery according to the second duty cycle until the temperature of the battery is greater than or equal to a preset charging temperature.
  • the processor 1101 is specifically configured to: obtain the battery's own temperature detected by the temperature detection device 1105 when the charging device establishes a connection with the battery; according to the battery's own temperature, Determine the second duty cycle.
  • the processor 1101 is specifically configured to determine the second duty cycle according to the battery's own temperature and a preset charging temperature of the battery.
  • the second duty cycle is greater than the first duty cycle.
  • the heating device is provided on the charging device.
  • the heating device is provided in the battery 1100.
  • the battery 1100 of this embodiment further includes a heating device 1106, the heating device 1106 is the aforementioned heating device, and the charging device controls the heating device 1106 to perform the aforementioned intermittent heating of the battery 1100.
  • At least one surface of each cell of the cell group 1104 is in contact with the heating device 1106.
  • the heating device 1106 is a heating film.
  • the communication interface 1103 and the charging interface 1102 may be integrated on the same physical interface.
  • the battery 1100 of this embodiment may further include a memory (not shown in the figure) for storing program codes.
  • the processor 1101 calls the program code to implement the above solutions.
  • processors 1101 is one or more, and one processor 1101 is shown as an example in FIG. 11.
  • the battery in this embodiment can be used to implement the technical solution of the battery in the method embodiment shown in FIG. 7 or FIG. 8 of the present application, and its implementation principles and technical effects are similar, and will not be repeated here.
  • FIG. 12 is a schematic structural diagram of a charging system provided by an embodiment of the application. As shown in FIG. 12, the charging system 1200 of this embodiment includes: a battery 1201 and a charging device 1202.
  • the charging device 1202 may adopt the structure of the embodiment shown in FIG. 9, and correspondingly, it may execute the technical solution of the charging device in any of the foregoing method embodiments.
  • the implementation principles and technical effects are similar, and details are not described herein again.
  • the battery 1201 may adopt the structure of the embodiment shown in FIG. 10 or FIG. 11, which can correspondingly execute the technical solution of the battery in any of the foregoing method embodiments, and its implementation principles and technical effects are similar, and will not be repeated here.
  • the charging system will be described with a specific example below.
  • the battery 1201 is used to obtain the environmental temperature of the environment in which the battery 1201 is located during the process of charging the battery 1201 by the charging device 1202; obtain a first duty cycle according to the environmental temperature, and the first The duty cycle is related to the ambient temperature where the battery 1201 is located, and the first duty cycle is used to indicate that the heating device is controlled to intermittently heat the battery 1201; the first duty cycle is sent to the charging device 1202 Compare.
  • the charging device 1202 is configured to obtain the first duty cycle sent by the battery 1201, and control the heating device to intermittently heat the battery 1201 according to the first duty cycle.
  • the larger the first duty cycle is, the longer the continuous heating time during the intermittent heating of the battery by the heating device.
  • the first duty cycle is negatively related to the ambient temperature.
  • the battery 1201 is further configured to obtain a second duty cycle before the charging device 1202 charges the battery 1201, and send the second duty cycle to the charging device 1202.
  • the charging device 1202 is also used to obtain the second duty cycle sent by the battery 1201 before the charging device 1202 charges the battery 1201, and to control the second duty cycle according to the second duty cycle.
  • the heating device heats the battery 1201 intermittently.
  • the second duty cycle is greater than the first duty cycle.
  • the heating device is provided in the battery 1201.
  • At least one surface of each cell of the battery 1201 is in contact with the heating device.
  • the heating device is a heating film.
  • FIG. 13 is a schematic structural diagram of a movable platform provided by an embodiment of this application.
  • the movable platform 1300 of this embodiment may include: a body 1301 and a battery 1302, and the battery 1302 is provided in the machine. In the battery compartment of the body 1301.
  • the battery 1302 may adopt the structure of the embodiment shown in FIG. 10 or FIG. 11, which correspondingly can execute the technical solution of the battery in any of the foregoing method embodiments, and its implementation principles and technical effects are similar, and will not be repeated here.
  • another embodiment of the present application provides a movable platform, and the movable platform includes a charging system as shown in FIG. 12.
  • a person of ordinary skill in the art can understand that all or part of the steps in the above method embodiments can be implemented by a program instructing relevant hardware.
  • the foregoing program can be stored in a computer readable storage medium. When the program is executed, it is executed. Including the steps of the foregoing method embodiment; and the foregoing storage medium includes: read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disks or optical disks, etc., which can store program codes Medium.

Abstract

L'invention concerne un procédé de chauffage de batterie, un dispositif de charge, un système, une batterie et une plateforme mobile. Le procédé consiste à : dans le processus de chargement d'une batterie par un dispositif de charge, obtenir un premier rapport cyclique, le premier rapport cyclique étant lié à une température ambiante de l'environnement dans lequel est située la batterie (S501), et le premier rapport cyclique est utilisé pour indiquer qu'un dispositif de chauffage est commandé pour chauffer par intermittence la batterie ; et en fonction du premier rapport cyclique, commander le dispositif de chauffage pour chauffer par intermittence la batterie (S502). Une batterie est chauffée par intermittence dans le processus de chargement d'une batterie par un dispositif de charge pour compenser la perte de chaleur de la propre batterie provoquée par un environnement à basse température dans lequel est située la batterie, de sorte qu'il soit garanti que la température de la propre batterie est maintenue sensiblement constante dans le processus de charge, le processus de charge de la batterie n'étant pas interrompu en raison de la propre température de la batterie, et étant ainsi garanti que la batterie se trouve dans un état chargé en continu, ce qui permet d'améliorer l'efficacité de charge de la batterie, et de prolonger la durée de vie de la batterie.
PCT/CN2020/081202 2020-03-25 2020-03-25 Procédé de chauffage de batterie, dispositif de charge, système, batterie et plateforme mobile WO2021189324A1 (fr)

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CN1886709A (zh) * 2003-11-26 2006-12-27 摩托罗拉公司 计算机部件加热装置和方法
TW201134044A (en) * 2010-03-31 2011-10-01 jian-zhou Chen Portable battery powered heating method that can randomly change to maintain constant temperature
JP2015157532A (ja) * 2014-02-24 2015-09-03 三菱自動車工業株式会社 車両の制御装置
WO2016112250A2 (fr) * 2015-01-09 2016-07-14 Cooper Technologies Company Système et procédé de chauffage de dispositifs de stockage d'énergie
CN106058384A (zh) * 2016-08-08 2016-10-26 北京现代汽车有限公司 一种动力电池的加热方法及装置
CN106252789A (zh) * 2016-09-13 2016-12-21 深圳市赛尔盈电子有限公司 一种新型电动汽车用ptc加热器及集成控制系统
CN107919506A (zh) * 2017-11-09 2018-04-17 北京长城华冠汽车技术开发有限公司 电动汽车电池温控系统、温控方法、电动汽车电池总成

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1886709A (zh) * 2003-11-26 2006-12-27 摩托罗拉公司 计算机部件加热装置和方法
TW201134044A (en) * 2010-03-31 2011-10-01 jian-zhou Chen Portable battery powered heating method that can randomly change to maintain constant temperature
JP2015157532A (ja) * 2014-02-24 2015-09-03 三菱自動車工業株式会社 車両の制御装置
WO2016112250A2 (fr) * 2015-01-09 2016-07-14 Cooper Technologies Company Système et procédé de chauffage de dispositifs de stockage d'énergie
CN106058384A (zh) * 2016-08-08 2016-10-26 北京现代汽车有限公司 一种动力电池的加热方法及装置
CN106252789A (zh) * 2016-09-13 2016-12-21 深圳市赛尔盈电子有限公司 一种新型电动汽车用ptc加热器及集成控制系统
CN107919506A (zh) * 2017-11-09 2018-04-17 北京长城华冠汽车技术开发有限公司 电动汽车电池温控系统、温控方法、电动汽车电池总成

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