CN112467829B - Charging method, electronic equipment and adapter - Google Patents

Charging method, electronic equipment and adapter Download PDF

Info

Publication number
CN112467829B
CN112467829B CN202011282507.2A CN202011282507A CN112467829B CN 112467829 B CN112467829 B CN 112467829B CN 202011282507 A CN202011282507 A CN 202011282507A CN 112467829 B CN112467829 B CN 112467829B
Authority
CN
China
Prior art keywords
battery
temperature
heating
heating power
charging
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202011282507.2A
Other languages
Chinese (zh)
Other versions
CN112467829A (en
Inventor
谢红斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Oppo Mobile Telecommunications Corp Ltd
Original Assignee
Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority to CN202011282507.2A priority Critical patent/CN112467829B/en
Publication of CN112467829A publication Critical patent/CN112467829A/en
Application granted granted Critical
Publication of CN112467829B publication Critical patent/CN112467829B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • 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
    • H01M10/615—Heating or keeping warm
    • 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
    • H01M10/63—Control systems
    • H01M10/633—Control systems characterised by algorithms, flow charts, software details or the like
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Automation & Control Theory (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The application provides a battery charging method, electronic equipment and an adapter. Acquiring the current battery temperature; judging whether the acquired current battery temperature is smaller than a temperature value in a preset temperature range; when the acquired current battery temperature is smaller than the temperature value in the preset temperature range, heating the battery for a first time by using a first heating power, and heating the battery for a second time by using a second heating power, wherein the second heating power is smaller than the first heating power; and when the acquired current battery temperature is within the preset temperature range, charging the battery by using preset charging power. The charging method provided by the application can overcome the negative condition generated when the battery is heated in a low-temperature environment.

Description

Charging method, electronic equipment and adapter
Technical Field
The application relates to the technical field of charging, in particular to a charging method, electronic equipment and an adapter.
Background
As a mobile communication device, the development and popularization of mobile phones are extremely rapid, and most mobile phones currently adopt a rapid charging technology to shorten the battery charging time, but the battery cannot be rapidly charged in a low-temperature environment due to battery performance. In the related art, the charging speed of the battery in a low-temperature environment is increased by heating the battery, however, the improper heating method may have negative effects on the life of the battery, the charging safety, and the like.
Disclosure of Invention
The application provides a battery charging method, electronic equipment and an adapter, which can overcome the negative condition generated when the battery is heated in a low-temperature environment.
The application provides a charging method of a battery, comprising the following steps:
acquiring the current battery temperature;
judging whether the acquired current battery temperature is smaller than a temperature value in a preset temperature range;
when the acquired current battery temperature is smaller than the temperature value in the preset temperature range, heating the battery for a first time by using a first heating power, and heating the battery for a second time by using a second heating power, wherein the second heating power is smaller than the first heating power;
and when the acquired current battery temperature is within the preset temperature range, charging the battery by using preset charging power.
The application also provides an electronic device comprising:
a battery;
the sensor is used for acquiring the current battery temperature;
the heating piece is used for heating the battery;
the processor is electrically connected with the sensor and is used for receiving the current battery temperature acquired by the sensor, judging whether the acquired current battery temperature is smaller than a temperature value in a preset temperature range, when the acquired current battery temperature is smaller than the temperature value in the preset temperature range, controlling the heating element to heat the battery for a first time by using first heating power and then heat the battery for a second time by using second heating power, and when the acquired current battery temperature is in the preset temperature range, controlling to charge the battery by using preset charging power, wherein the second heating power is smaller than the first heating power.
The application also provides an adapter, the adapter is used for the electricity to be connected in the electronic equipment that possesses battery, heating element and sensor, the adapter includes the treater, the treater is used for when adapter and electronic equipment electricity are connected, receive the current battery temperature that the sensor obtained to judge whether the current battery temperature of obtaining is less than the temperature value in the preset temperature range, when the current battery temperature of obtaining is less than the temperature value in the preset temperature range, the treater is still used for controlling the heating element uses first heating power to heat first duration, reuse second heating power to heat the second duration of battery, when the current battery temperature of obtaining is in the preset temperature range, the treater is still used for controlling to use the preset charging power to charge the battery, wherein, the second heating power is less than first heating power.
According to the charging method, the current battery temperature is obtained, whether the obtained current battery temperature is in the preset temperature range or not is judged, and if the obtained current battery temperature is smaller than the preset temperature range, the battery is heated, so that the battery reaches the temperature corresponding to the time of quick charging. Further, when the battery is heated, the first heating power is higher than the second heating power, the first heating power is used for heating the first time, and the second heating power is used for heating the second time, so that it can be understood that the heat generated in the first time is used as a main heat source for heating the battery, and the subsequent second time can provide diffusion conditions for the heat generated in the first time, that is, the heat generated in the first time can be fully diffused to other parts of the battery in the subsequent second time, so that the heat of each part of the battery is consistent as much as possible, the situation that the temperature difference of each part of the battery is too large is avoided, the conditions of too short service life of the battery, battery ignition and the like can be avoided, and the battery is ensured to be in a healthy heating state. Therefore, the charging method provided by the application can overcome the negative condition generated when the battery is heated in a low-temperature environment.
Drawings
In order to more clearly illustrate the technical solutions of the examples of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flow chart of a method for charging a battery according to an embodiment of the present application.
Fig. 2 is a flow chart of a method for charging a battery according to another embodiment of the present disclosure.
Fig. 3 is a schematic power diagram according to an embodiment of the present application.
Fig. 4 is a flowchart of a method for charging a battery according to another embodiment of the present disclosure.
Fig. 5 is a schematic power diagram according to another embodiment of the present application.
Fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Fig. 7 is a schematic structural diagram of an electronic device according to another embodiment of the present application.
Fig. 8 is a schematic structural diagram of an adapter according to an embodiment of the present application.
Fig. 9 is a schematic diagram of an electrical connection relationship between an adapter and an electronic device according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without undue burden, are within the scope of the present application.
The terms first, second and the like in the description and in the claims of the present application and in the above-described figures, are used for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is to be expressly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments without conflict in the event that at least two embodiments are combined together.
Embodiments of the present application provide a method for charging a battery, which is described in detail below with reference to the accompanying drawings. Referring to fig. 1, fig. 1 is a flow chart of a battery charging method according to an embodiment of the present disclosure. The charging method includes, but is not limited to, steps S101, S102, S103, S104, and the description of steps S101, S102, S103, S104 is as follows.
S101: the current battery temperature is obtained.
The battery temperature can be obtained through measurement of a sensor, and the mode of measuring the battery temperature by the sensor can be a contact type or a non-contact type, wherein the contact type means that the sensor is in good contact with the battery, and the non-contact type means that the sensor is not in contact with the battery.
Alternatively, the battery temperature is measured by a combination of a plurality of (greater than or equal to two) sensors. Specifically, the number of the sensors is plural, wherein part of the sensors are arranged outside the battery and used for detecting the temperature outside the battery (the external temperature of the battery), and the other part of the sensors are arranged inside the battery and used for detecting the temperature inside the battery (the internal temperature of the battery), and the battery temperature is obtained through the combination of the external temperature of the battery and the internal temperature of the battery. It can be understood that the sensors are arranged inside and outside the battery to comprehensively measure the temperature of the battery, so that the problem of inaccurate measurement of the temperature of the battery caused by measurement errors, high/low local temperature of the battery and other factors can be avoided, in other words, the comprehensive measurement can be more accurate.
Further, the battery is used as a power supply for providing electric energy for the electronic equipment. The battery can be positioned in the electronic equipment and is wrapped by a shell of the electronic equipment; the battery may also be located external to the electronic device and exposed to the environment. The electronic device may be a mobile phone, a tablet computer, a notebook computer, a mobile power supply, an unmanned aerial vehicle, an electronic book, an electric bicycle, an electric motorcycle, an electric automobile, a wearable device (such as a watch, a bracelet, intelligent glasses, a wireless earphone, etc.), a bluetooth sound device, an electric toothbrush, a chargeable wireless mouse, a sweeping robot, an electronic cigarette, etc. with a battery.
S102: and judging whether the acquired current battery temperature is smaller than a temperature value in a preset temperature range.
The preset temperature range is a temperature range in which the battery can be charged quickly, that is, when the temperature of the battery is within the preset temperature range, the battery can be charged quickly, and the maximum temperature range corresponding to the battery in which the battery can be charged quickly is simply referred to as a quick charge temperature range.
Further, the preset temperature range may be just equal to the quick charge temperature range, for example, the quick charge temperature range is 40 ℃ to 50 ℃, and the preset temperature range is also set to 40 ℃ to 50 ℃. The preset temperature range may also be a temperature range within the quick charge temperature range that is not equal to the quick charge temperature range, for example, the quick charge temperature range is 30 ℃ to 50 ℃, and the preset temperature range is set to 40 ℃ to 50 ℃.
It will be appreciated that the fast charge temperature range is related to the battery's own properties, and therefore, the preset temperature range should be determined according to the type of the battery, and the specific values given in the above embodiments are only exemplary, and the present application is not limited to the specific values of the preset temperature range.
S103: when the obtained current battery temperature is smaller than the temperature value in the preset temperature range, the battery is heated for a first time by using the first heating power, and is heated for a second time by using the second heating power, so that the temperature of the battery reaches the preset temperature range. Wherein the first heating power and the second heating power are both greater than zero, and the second heating power is less than the first heating power.
The first heating power may be 20W, 30W, 50W, 55W, 60W, 72W, etc., and the second heating power may be 2W, 3W, 5W, 5.2W, 6W, 7W, etc. In other embodiments, the second heating power may also be zero. It can be understood that under the low-temperature environment, the heat of the battery is taken away at all external moments, and the second heating power used in the second time period is set to be greater than zero, so that the heat generated in the second time period compensates at least part of the heat taken away by the low-temperature environment, and the battery can be heated to a preset temperature range more quickly.
The first duration refers to a duration of a first heating power in a battery heating process, and the second duration refers to a duration of a second heating power in the battery heating process. The first duration and the second duration may be equal or unequal. The first time period and the second time period may each be 5 seconds, 10 seconds, 16 seconds, 20 seconds, 29 seconds, 35 seconds, etc.
Alternatively, the heating power and the heating duration may be different at different ambient temperatures. For example, the first heating power may be greater and the duration of the first duration may be longer when the ambient temperature is lower. The first heating power may be smaller and the duration of the first duration may be shorter when the ambient temperature is higher.
It should be noted that, specific values of the first heating power, the second heating power, the first duration, and the second duration should be determined according to practical situations, which is not limited in the present application.
Furthermore, the heating of the battery can be realized by a heating element, and the heating element can heat the battery in an external heating mode or an internal heating mode. The external heating means that the heating element is arranged outside the battery, and heat generated when the heating element heats is transferred from the outside of the battery to the inside of the battery, for example, the heating wire is arranged outside the battery for heating. The internal heating means that the heating element is arranged inside the battery, and heat generated when the heating element heats is transferred from the inside of the battery to the outside of the battery, for example, the resistance sheet is arranged inside the battery for heating.
In other embodiments, the battery may be heated by both internal and external heating. Specifically, the heating element includes interior heating element and external heating element, and interior heating element sets up in the battery is inside, and external heating element sets up in the battery is outside, and interior heating element and external heating element can heat the battery simultaneously for the inside and outside of battery realizes the simultaneous temperature rise, thereby can avoid the battery to appear the too big situation of inside and outside difference in temperature in the heating process, and in addition, the battery is inside and outside to heat simultaneously and also can be faster with the battery heating to predetermineeing temperature range.
In the related art, in order to heat up a battery in a low temperature environment to a preset temperature range more quickly, a larger heating power is generally used to continuously heat the battery, so that the heating time is shortened. However, if the battery is heated continuously with a larger heating power, no matter external heating or internal heating is adopted, uneven temperature distribution of the battery in the heating process can be caused, that is, the temperature of the part, close to the heating element, of the battery is high, the temperature of the part, far away from the heating element, is relatively low, and thus a temperature difference occurs. However, uneven temperature distribution may cause an increase in the aging speed of the battery, a decrease in the life of the battery, and even a fire or the like. The reason for the uneven temperature distribution is that the battery is a three-dimensional structure with a certain length, a certain width and a certain thickness, and the heat generated by the heating element is diffused in the heating and temperature rising process, so that the whole temperature rising of the battery is realized, but the diffusion process of the heat needs a certain time, so that the battery is heated by continuously using a larger heating power, and the uneven temperature distribution can occur.
In this embodiment, the first heating power used when heating the battery is greater than the second heating power, and the first heating power is used to heat the battery for a first period of time and then the second heating power is used to heat the battery for a second period of time. It can be understood that, in the heating method, the heat generated in the first period is used as the main heat source for heating the battery, and the subsequent second period can provide diffusion conditions for the heat generated in the first period, that is, the heat generated in the first period can be fully diffused to other parts of the battery in the subsequent second period, so that the heat of each part of the battery is consistent as much as possible, and the situation that the temperature difference of each part of the battery is too large is avoided as much as possible, thereby avoiding the conditions of too fast battery life reduction, battery ignition and the like and ensuring that the battery is in a healthy heating state. Therefore, the charging method provided by the application can overcome the negative condition generated when the battery is heated in a low-temperature environment.
In the process of executing step S103, steps S101 and S102 are executed simultaneously in sequence, or step S103 is executed after the execution is completed, and steps S101 and S102 are executed sequentially. When step S102 determines that the current battery temperature is already within the preset temperature range, step S103 is not performed.
S104: and when the acquired current battery temperature is within the preset temperature range, charging the battery by using preset charging power.
Specifically, when the temperature of the battery is judged to be within the preset temperature range, the current temperature of the battery is indicated to be capable of realizing quick charge, and the battery is charged by using preset charging power, wherein the preset charging power refers to charging power corresponding to quick charge of the battery.
Optionally, the preset charging power is equal to the first heating power, in other words, the power of the battery during rapid charging is equal to the first heating power used during heating of the battery, so that the heating circuit and the charging circuit can share part of the circuit, complexity of the circuit can be reduced, occupied space of the circuit is reduced, and occupied volume of related hardware modules can be correspondingly reduced.
Referring to fig. 2, fig. 2 is a flow chart of a battery charging method according to another embodiment of the present disclosure. In connection with the charging method described in the previous embodiment, "step S103: when the obtained current battery temperature is smaller than the temperature value in the preset temperature range, the step of heating the battery for a first period of time by using the first heating power and the step of heating the battery for a second period of time by using the second heating power may include step S201, and the description of step S201 is as follows.
S201: and heating the battery by sequentially and circularly using the first heating power and the second heating power. The duration of the first heating power is a first duration, and the duration of the second heating power is a second duration. In other words, in this embodiment, the battery is heated for a first period of time by using the first heating power, then heated for a second period of time by using the second heating power, and then the heating process is repeated, that is, the battery is heated for the first period of time and the second period of time by sequentially and circularly using the first heating power and the second heating power until the battery is heated to be within the preset temperature range. As shown in fig. 3, fig. 3 is a schematic power diagram provided in an embodiment of the present application, where P1 is a first heating power, P2 is a second heating power, t1 is a first duration, and t2 is a second duration.
It can be appreciated that the battery is heated by sequentially and circularly using the first heating power and the second heating power, so that the battery can be quickly heated to a preset temperature range, and the negative condition generated when the battery is heated in a low-temperature environment can be overcome.
Alternatively, the first duration and the second duration may be different in different heating periods. For example, the first time period is longer when the battery is initially heated, and is shorter when the temperature of the battery increases to be close to the preset temperature range after heating for a while.
Referring to fig. 4, fig. 4 is a flowchart illustrating a battery charging method according to another embodiment of the present disclosure. In connection with the charging method described in any of the foregoing embodiments, "step S104: when the obtained current battery temperature is within the preset temperature range, after the battery is charged using the preset charging power, steps S301 and S302 may be included, but are not limited to, and the following description is given with respect to the steps S301 and S302.
S301: the current battery temperature is obtained during the charging process.
S302: and when the current battery temperature acquired in the charging process is smaller than the target temperature, heating the battery by using the third heating power so as to maintain the battery temperature within a preset temperature range. As shown in fig. 5, fig. 5 is a power schematic diagram provided in another embodiment of the present application, where P4 is a preset charging power, and P3 is a third heating power.
It will be appreciated that in a low temperature environment, although the temperature of the battery has been heated to within the preset temperature range, the low temperature environment is also taking away the heat of the battery, so the temperature of the battery after the rapid charging is started will still be reduced, and if the heat taken away by the low temperature environment is not replenished, the temperature of the battery will be continuously reduced, and eventually the charging speed will be reduced.
In this embodiment, the target temperature is a temperature value within a preset temperature range, and when the battery temperature in the charging process is reduced to be less than the target temperature, the battery is heated by using the third heating power, so as to supplement part of heat taken away from the battery by the low-temperature outside, so that the temperature of the battery is maintained within the preset temperature range, and further continuous and rapid charging is realized.
Optionally, the value of the third heating power is a non-constant value that can be changed, and the calculation expression of the third heating power may be:
P3＝(cm△T)/t-I 2 R
wherein P3 is a third heating power; c is the mass specific heat capacity of the battery and m is the mass of the battery, or c is the volume specific heat capacity of the battery and m is the volume of the battery; delta T is the difference between the current battery temperature and the target temperature during charging; t is heating time; i is charging current; r is the internal resistance of the battery.
The meaning of the expression is explained below: in a low-temperature environment, the battery temperature in a fast charge state is affected by the ambient temperature and decreases, and the lower the ambient temperature is, the larger the heat taken away by the external environment is, the more the battery temperature decreases, the lower the battery temperature is, and even the battery temperature is smaller than the target temperature and is smaller than the minimum temperature value in the preset temperature range, at this time, more heat needs to be provided to the battery, so that the battery temperature increases, and if the third heating power for heating the battery is a smaller constant value, the battery temperature may be caused to continuously decrease, and finally the charging speed decreases. In the above expression, Δt is the difference between the current battery temperature and the target temperature during charging, and if the lower the ambient temperature is, the larger the battery temperature is decreased, and Δt is the larger the third heating power P calculated by the above expression 3 The larger the battery temperature drop, in short, the larger the third heating power P3. Therefore, the third heating power P3 calculated using the above expression may be suitable for different low temperature scenarios, i.e., the battery temperature may be maintained within the preset temperature range by the third heating power in different low temperature scenarios, thereby realizing continuous and rapid charging.
It should be noted that, the target temperature in the above expression is a temperature value within a preset temperature range, and the target temperature may be, but not limited to, a minimum temperature value, a maximum temperature value, an average temperature value of a plurality of sample temperature points, and the like within the preset temperature range. Accordingly, when the current battery temperature during charging is less than the target temperature, Δt may be, but is not limited to, Δt=minimum temperature value-battery temperature, Δt=maximum temperature value-battery temperature, Δt=average temperature value-battery temperature, or the like.
It should be noted that the heating time t in the above expression may be manually set, for example, the heating time t is set to 1 second, 2 seconds, 2.1 seconds, 3 seconds, etc., it is understood that the smaller the heating time t, the third heating power P 3 The larger the battery, the faster the battery heats up.
The present application also provides an electronic device 1, which electronic device 1 is described below with reference to the accompanying drawings. Referring to fig. 6, fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present application. The electronic device 1 may perform the charging method described in any of the above embodiments, and the following examples of the electronic device 1 are referred to in combination with the figures and description in the examples of the charging method.
The electronic device 1 may comprise a battery 10, a sensor 30, a heating element 20, and a processor 40, the processor 40 being electrically connected to the battery 10, the sensor 30, and the heating element 20, respectively, as described below.
The battery 10 is used for providing power for the electronic device 1, and may be located inside or outside the electronic device 1, and the connection between the battery 10 and other components of the electronic device 1 may be detachable or non-detachable.
The sensor 30 is used for acquiring the current battery temperature, and the mode of measuring the battery temperature can be contact type or non-contact type.
The heating member 20 is used for heating the battery 10, and the heating type thereof may be external heating and/or internal heating.
The processor 40 is configured to receive the current battery temperature acquired by the sensor 30, and determine whether the acquired current battery temperature is less than a temperature value within a preset temperature range. When the obtained current battery temperature is less than the temperature value within the preset temperature range, the processor 40 controls the heating element 20 to heat the battery 10 for a first period of time by using the first heating power, and then heat the battery 10 for a second period of time by using the second heating power. When the obtained current battery temperature is within the preset temperature range, the processor 40 controls the battery 10 to be charged using the preset charging power. The first heating power and the second heating power are both larger than zero, and the second heating power is smaller than the first heating power.
The electronic device 1 may be a mobile phone, a tablet computer, a notebook computer, a mobile power supply, an unmanned aerial vehicle, an electronic book, an electric bicycle, an electric motorcycle, an electric automobile, a wearable device (such as a watch, a bracelet, a pair of smart glasses, a pair of wireless headphones, etc.), a bluetooth sound device, an electric toothbrush, a rechargeable wireless mouse, a sweeping robot, an electronic cigarette, etc. each of which is provided with the battery 10.
It can be understood that the heat generated in the first period is used as a main heat source for heating the battery 10, and the subsequent second period can provide a diffusion condition for the heat generated in the first period, that is, the heat generated in the first period can be fully diffused to other parts of the battery 10 in the subsequent second period, so that the heat of each part of the battery 10 is consistent as much as possible, and the situation that the temperature difference of each part of the battery 10 is too large is avoided as much as possible, thereby avoiding the conditions of too fast service life reduction of the battery 10, fire starting of the battery 10 and the like, and ensuring that the battery 10 is in a healthy heating state. Therefore, the electronic apparatus 1 provided in the present embodiment can overcome the negative condition generated when the battery 10 is heated in a low-temperature environment.
Further, when the processor 40 determines that the obtained current battery temperature is less than the temperature value within the preset temperature range, the processor 40 may be further configured to control the heating element 20 to sequentially and cyclically use the first heating power and the second heating power to heat the battery 10. The duration of the first heating power is a first duration, and the duration of the second heating power is a second duration.
Specifically, the processor 40 controls the heating member 20 to heat the battery 10 for a first period of time using the first heating power, then controls the heating member 20 to heat the battery 10 for a second period of time using the second heating power, and then repeats the heating process until the battery 10 is heated to within the preset temperature range. It will be appreciated that the use of the first heating power and the second heating power to heat the battery 10 in a sequential cycle may enable rapid heating of the battery 10 to within a predetermined temperature range and may also overcome the negative conditions that may occur when the battery 10 is heated in a low temperature environment.
Further, the sensor is further configured to obtain a current battery temperature during the charging process, and when the current battery temperature obtained during the charging process is less than the target temperature, the processor 40 is further configured to control the heating element 20 to heat the battery 10 using the third heating power to maintain the battery temperature within the preset temperature range, where the target temperature is a temperature value within the preset temperature range. It can be appreciated that when the battery 10 is charged in a low-temperature environment, the third heating power is also used to heat the battery 10, so that part of heat taken from the battery 10 by the low-temperature outside can be supplemented, the temperature of the battery is maintained within a preset temperature range, and continuous and rapid charging is further realized.
Optionally, the preset charging power is equal to the first heating power. The arrangement can enable the heating circuit and the charging circuit to share part of the circuit, thereby reducing the complexity of the circuit, reducing the occupied space of the circuit and correspondingly reducing the occupied volume of related hardware modules.
Alternatively, the value of the third heating power is a non-constant value that can be varied, and the value thereof can be calculated by the processor 40.
The calculation expression of the third heating power may be:
P3＝(cm△T)/t-I 2 R
wherein P3 is a third heating power; c is the mass specific heat capacity of the battery 10 and m is the mass of the battery 10, or c is the volume specific heat capacity of the battery 10 and m is the volume of the battery 10; delta T is the difference between the current battery temperature and the target temperature during charging; t is heating time; i is charging current; r is the internal resistance of the battery 10. It can be appreciated that the third heating power P3 calculated by the above expression may be suitable for different low temperature scenarios, that is, in different low temperature scenarios, the battery temperature may be maintained within the preset temperature range by the third heating power, so as to implement continuous and rapid charging.
Referring to fig. 7, fig. 7 is a schematic structural diagram of an electronic device according to another embodiment of the present application. In any of the foregoing embodiments, the battery 10 further includes a first electrode 110, a second electrode 120, and a battery body 130, wherein the first electrode 110 and the second electrode 120 are electrically connected to the battery body 130, respectively. Wherein the first electrode 110 is a positive electrode, and the second electrode 120 is a negative electrode; or the first electrode 110 is a negative electrode and the second electrode 120 is a positive electrode.
The heating member 20 includes a heating electrode 210 and a heating body (the heating body is not shown in the drawing) electrically connected, wherein the heating body is connected with the battery body 130, and the heating body is used for generating heat and transferring the heat to the battery body 130, thereby raising the temperature of the battery 10.
The electronic device 1 further comprises a first switch s1 and a second switch s2. The first switch s1 is electrically connected between the first electrode 110 and the processor 40, and the processor 40 is also electrically connected to the second electrode 120. The second switch s2 is electrically connected between the heater electrode 210 and the processor 40.
The following exemplarily describes a reaction process when the electronic apparatus 1 is charged in a low-temperature environment.
The processor 40 receives the current battery temperature acquired by the sensor 30 and determines whether the acquired current battery temperature is within a preset temperature range.
When the obtained current battery temperature is less than the temperature value within the preset temperature range, the processor 40 controls the first switch s1 to be opened and controls the second switch s2 to be closed, so that the heating member 20 heats the battery 10 using the first heating power and the second heating power.
When the temperature of the battery reaches the preset temperature range, the processor 40 controls the first switch s1 to be closed and controls the second switch s2 to be opened, so that the battery 10 is charged by the preset charging power, and meanwhile, the heating element 20 is suspended from heating the battery 10 by using the first heating power and the second heating power.
After the battery 10 starts to be charged rapidly, the temperature of the battery is still lowered after the rapid charging is started because the battery 10 has a certain temperature difference from the low-temperature outside. When the current battery temperature in the charging process is less than the target temperature, the processor 40 controls the first switch s1 and the second switch s2 to be closed simultaneously, so that the heating element 20 heats the battery 10 by using the third heating power while the battery 10 is charged rapidly, thereby maintaining the battery temperature within the preset temperature range and realizing continuous rapid charging.
Alternatively, the first electrode 110 or the second electrode 120 serves as the other heating electrode 210 of the heating element 20, in other words, the heating element 20 shares the first electrode 110 or the second electrode 120 with the battery 10. The arrangement can enable the heating circuit and the charging circuit to share part of the circuit, thereby reducing the complexity of the circuit, reducing the occupied space of the circuit and correspondingly reducing the occupied volume of related hardware modules.
The present application also provides an adapter 2, which adapter 2 is described below in connection with the accompanying drawings. Referring to fig. 8, fig. 8 is a schematic structural diagram of an adapter according to an embodiment of the present application. The adapter 2 is used in conjunction with the electronic device 1, and the adapter 2 and the electronic device 1 may cooperate to perform the charging method described in any of the foregoing embodiments, and the following examples of the adapter 2 are referred to in conjunction with the drawings and descriptions in the foregoing examples of the charging method.
Referring to fig. 9, fig. 9 is a schematic diagram showing an electrical connection relationship between an adapter and an electronic device according to an embodiment of the present application, and the adapter 2 is used for electrically connecting to the electronic device 1 having the battery 10, the heating element 20 and the sensor 30. The adapter 2 includes a processor 40, where the processor 40 is configured to receive the current battery temperature obtained by the sensor 30 when the adapter 2 is electrically connected to the electronic device 1, and determine whether the obtained current battery temperature is less than a temperature value within a preset temperature range. When the obtained current battery temperature is smaller than the temperature value within the preset temperature range, the processor 40 is further configured to control the heating element 20 to heat the battery 10 for a first period of time using a first heating power, and to heat the battery 10 for a second period of time using a second heating power. And when the acquired current battery temperature is within the preset temperature range, the processor is further used for charging the battery by using preset charging power. The first heating power and the second heating power are both larger than zero, and the second heating power is smaller than the first heating power.
Further, when the obtained current battery temperature is less than the temperature value within the preset temperature range, the processor 40 is further configured to control the heating element 20 to sequentially and circularly use the first heating power and the second heating power to heat the battery 10. The duration of the first heating power is a first duration, and the duration of the second heating power is a second duration.
Further, the processor 40 is further configured to receive the current battery temperature obtained by the sensor 30 during the charging process, and when the current battery temperature during the charging process is less than the target temperature, the processor 40 is further configured to control the heating element 20 to heat the battery 10 using the third heating power.
While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the present application, and that variations, modifications, alternatives and alterations of the above embodiments may be made by those skilled in the art within the scope of the present application, which are also to be regarded as being within the scope of the protection of the present application.

Claims (12)

1. A method of charging a battery, the method comprising:
acquiring the current battery temperature;
judging whether the acquired current battery temperature is smaller than a temperature value in a preset temperature range;
when the acquired current battery temperature is smaller than the temperature value in the preset temperature range, sequentially and alternately and circularly using first heating power and second heating power to heat the battery, wherein the duration of the first heating power is a first duration, the duration of the second heating power is a second duration, the second heating power is smaller than the first heating power, and the first heating power and the second heating power are in step change;
and when the acquired current battery temperature is within the preset temperature range, charging the battery by using preset charging power.
2. The charging method according to claim 1, wherein after charging the battery using a preset charging power when the acquired current battery temperature is within the preset temperature range, further comprising:
acquiring the current battery temperature in the charging process;
and when the current battery temperature acquired in the charging process is smaller than the target temperature, heating the battery by using the third heating power so as to maintain the battery temperature within a preset temperature range.
3. The charging method according to claim 2, wherein the calculation expression of the third heating power is:
P3＝(cm△T)/t-I 2 R
wherein P3 is a third heating power; c is the mass specific heat capacity of the battery and m is the mass of the battery, or c is the volume specific heat capacity of the battery and m is the volume of the battery; delta T is the difference between the current battery temperature and the target temperature during charging; t is heating time; i is charging current; r is the internal resistance of the battery.
4. The charging method according to claim 2, wherein the preset charging power is equal to the first heating power.
5. An electronic device, the electronic device comprising:
a battery;
the sensor is used for acquiring the current battery temperature;
the heating piece is used for heating the battery;
the processor is electrically connected with the sensor and is used for receiving the current battery temperature acquired by the sensor, judging whether the acquired current battery temperature is smaller than a temperature value in a preset temperature range, when the acquired current battery temperature is smaller than the temperature value in the preset temperature range, controlling the heating element to heat the battery by using first heating power and second heating power alternately and circularly in sequence, and when the acquired current battery temperature is in the preset temperature range, controlling to charge the battery by using preset charging power, wherein the duration of the first heating power is a first duration, the duration of the second heating power is a second duration, and the second heating power is smaller than the first heating power and is in step change between the first heating power and the second heating power.
6. The electronic device of claim 5, wherein the sensor is further configured to obtain a current battery temperature during charging, and wherein the processor is further configured to control the heating element to heat the battery using a third heating power to maintain the battery temperature within a preset temperature range when the current battery temperature obtained during charging is less than a target temperature.
7. The electronic device of claim 6, wherein the third heating power is calculated as:
P3＝(cm△T)/t-I 2 R
wherein P3 is a third heating power; c is the mass specific heat capacity of the battery and m is the mass of the battery, or c is the volume specific heat capacity of the battery and m is the volume of the battery; delta T is the difference between the current battery temperature and the target temperature during charging; t is heating time; i is charging current; r is the internal resistance of the battery.
8. The electronic device of claim 6, wherein the preset charging power is equal to the first heating power.
9. The electronic device of any one of claims 5-8, wherein the battery further comprises a first electrode, a second electrode, and a battery body, the first electrode and the second electrode being electrically connected to the battery body, respectively, wherein the first electrode is a positive electrode and the second electrode is a negative electrode; or the first electrode is a negative electrode, and the second electrode is a positive electrode; the heating piece includes heating body and heating electrode, electronic equipment still includes:
a first switch electrically connected between the first electrode and the processor, the processor further electrically connected to the second electrode;
a second switch electrically connected between the heating electrode and the processor;
when the acquired current battery temperature is smaller than the temperature value in the preset temperature range, the processor controls the first switch to be opened and controls the second switch to be closed, so that the heating piece heats the battery.
10. The electronic device of claim 9, wherein the first electrode or the second electrode serves as the other heating electrode of the heating member.
11. The adapter is characterized in that the adapter is used for being electrically connected to an electronic device with a battery, a heating element and a sensor, the adapter comprises a processor, the processor is used for receiving the current battery temperature acquired by the sensor and judging whether the acquired current battery temperature is smaller than a temperature value in a preset temperature range or not when the adapter is electrically connected with the electronic device, when the acquired current battery temperature is smaller than the temperature value in the preset temperature range, the processor is further used for controlling the heating element to heat the battery by alternately and circularly using a first heating power and a second heating power in sequence, and when the acquired current battery temperature is in the preset temperature range, the processor is further used for controlling the battery to be charged by using the preset charging power, wherein the duration of the first heating power is a first duration, the duration of the second heating power is a second duration, the second heating power is smaller than the first heating power, and the first heating power and the second heating power are changed in a step-by-step mode.
12. The adapter of claim 11 wherein the processor is further configured to receive the current battery temperature during charging acquired by the sensor, and when the current battery temperature during charging is less than a target temperature, the processor is further configured to control the heating element to heat the battery using a third heating power to maintain the battery temperature within a preset temperature range.
CN202011282507.2A 2020-11-16 2020-11-16 Charging method, electronic equipment and adapter Active CN112467829B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011282507.2A CN112467829B (en) 2020-11-16 2020-11-16 Charging method, electronic equipment and adapter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011282507.2A CN112467829B (en) 2020-11-16 2020-11-16 Charging method, electronic equipment and adapter

Publications (2)

Publication Number Publication Date
CN112467829A CN112467829A (en) 2021-03-09
CN112467829B true CN112467829B (en) 2023-05-30

Family

ID=74836988

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011282507.2A Active CN112467829B (en) 2020-11-16 2020-11-16 Charging method, electronic equipment and adapter

Country Status (1)

Country Link
CN (1) CN112467829B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116667470B (en) * 2022-11-10 2024-05-24 荣耀终端有限公司 Charging method and electronic equipment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109004716A (en) * 2018-08-10 2018-12-14 爱驰汽车有限公司 The charge control method and system of battery pack
CN109599632A (en) * 2017-09-30 2019-04-09 比亚迪股份有限公司 The temperature control method and humidity control system of on-vehicle battery
CN111354999A (en) * 2018-12-21 2020-06-30 比亚迪股份有限公司 Vehicle and power battery heating device and method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109599632A (en) * 2017-09-30 2019-04-09 比亚迪股份有限公司 The temperature control method and humidity control system of on-vehicle battery
CN109004716A (en) * 2018-08-10 2018-12-14 爱驰汽车有限公司 The charge control method and system of battery pack
CN111354999A (en) * 2018-12-21 2020-06-30 比亚迪股份有限公司 Vehicle and power battery heating device and method thereof

Also Published As

Publication number Publication date
CN112467829A (en) 2021-03-09

Similar Documents

Publication Publication Date Title
JP6872364B2 (en) Battery control device and battery control system
CN109586373B (en) Battery charging method and device
US9751413B2 (en) Electric vehicle charging apparatus for controlling heat during charging
KR102205841B1 (en) Method and apparatus for estimating state of battery
US20140300311A1 (en) Portable power bank and battery booster
CN105518924A (en) Battery apparatus and electric vehicle
JP2011238428A (en) Secondary battery charging system and charging method
JP2003199262A (en) Battery charger
CN102833387A (en) Mobile terminal and processing method thereof
JP6466764B2 (en) Charging apparatus and charging method
CN112467829B (en) Charging method, electronic equipment and adapter
CN112994173B (en) Wireless charging method and device, equipment and storage medium
CN109450058A (en) Earphone charging method, earphone and computer readable storage medium
JP2015208218A (en) secondary battery system
CA2692581C (en) Method and apparatus for dynamic battery management control in a mobile communication device
KR20190043958A (en) Heater control system of battery pack of parallel connection structure
KR20190049272A (en) Apparatus and method for estimating SOC of battery
CN110927592A (en) Method and device for estimating peak power of battery
CN113665430B (en) Quick charging method, equipment and storage medium of self-adaptive low-temperature environment
CN110752638A (en) Vehicle-mounted wireless charging controller
CN105203957A (en) Cell test method and system
WO2013108389A1 (en) Charging device, charger, electronic device, and charge control method
CN205355206U (en) Battery system
JP6993286B2 (en) Power storage device, control device of power storage device, control method of power storage device
CN114616740A (en) Battery management device, battery system, and battery management method

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant