CN112467829A - Charging method, electronic device and adapter - Google Patents
Charging method, electronic device and adapter Download PDFInfo
- Publication number
- CN112467829A CN112467829A CN202011282507.2A CN202011282507A CN112467829A CN 112467829 A CN112467829 A CN 112467829A CN 202011282507 A CN202011282507 A CN 202011282507A CN 112467829 A CN112467829 A CN 112467829A
- 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.)
- Granted
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 within a preset temperature range; when the obtained current battery temperature is smaller than the temperature value within the preset temperature range, heating the battery for a first time length by using first heating power, and then heating the battery for a second time length by using 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
Technical Field
The application relates to the technical field of charging, in particular to a charging method, electronic equipment and an adapter.
Background
The development and popularization of a mobile phone as a mobile communication device are very rapid, and at present, most mobile phones adopt a quick charging technology to shorten the charging time of a battery, but the battery cannot be quickly charged in a low-temperature environment due to the limited performance of the battery. In the related art, the charging speed of the battery in a low-temperature environment is increased by heating the battery, however, improper heating may adversely affect the life and charging safety of the battery.
Disclosure of Invention
The application provides a battery charging method, electronic equipment and an adapter, which can overcome the negative condition generated when a 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 within a preset temperature range;
when the obtained current battery temperature is smaller than the temperature value within the preset temperature range, heating the battery for a first time length by using first heating power, and then heating the battery for a second time length by using 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 present application further provides an electronic device, the electronic device including:
a battery;
the sensor is used for acquiring the current battery temperature;
a heating member for heating the battery;
the processor is electrically connected with the sensor and 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 within a preset temperature range, when the acquired current battery temperature is smaller than the temperature value within the preset temperature range, the processor controls the heating element to heat the battery for a first time by using first heating power, and then to heat the battery for a second time by using second heating power, and when the acquired current battery temperature is within the preset temperature range, the processor controls the battery to be charged 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 being electrically connected with an electronic device provided 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 when the adapter is electrically connected with the electronic device, 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, the processor is further used for controlling the heating element to heat the battery for a first time length by using first heating power, then heating the battery for a second time length by using second heating power, and when the acquired current battery temperature is in the preset temperature range, the processor is further used for controlling to charge the battery by using preset charging power, wherein, the second heating power is less than the first heating power.
According to the charging method, the current battery temperature is obtained, whether the obtained current battery temperature is within the preset temperature range 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 battery when the battery can be charged quickly. Further, the first heating power used when the battery is heated is greater than the second heating power, the first heating power is used for heating the first duration, and then the second heating power is used for heating the second duration, it can be understood that the heat generated in the first duration is used as a main heat source for heating the battery, and the subsequent second duration can provide a diffusion condition for the heat generated in the first duration, that is, the heat generated in the first duration can be fully diffused to other parts of the battery in the subsequent second duration, so that the heat of each part of the battery is consistent as much as possible, the condition that the temperature difference of each part of the battery is too large is avoided as much as possible, and the conditions that the service life of the battery is too fast, the battery is ignited, and the battery is in a healthy heating state are ensured. 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 embodiments of the present application, the drawings needed to be used 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 it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic flowchart of a battery charging method according to an embodiment of the present disclosure.
Fig. 2 is a schematic flowchart of a battery charging method according to another embodiment of the present disclosure.
Fig. 3 is a power diagram according to an embodiment of the present disclosure.
Fig. 4 is a flowchart illustrating a method for charging a battery according to another embodiment of the present disclosure.
Fig. 5 is a 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 illustrating an electrical connection relationship between an adapter and an electronic device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without inventive step, are within the scope of the present disclosure.
The terms "first," "second," and the like in the description and claims of the present application and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively 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 can be included in at least one embodiment of the application. The appearances of the phrase 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 explicitly and implicitly understood by one skilled in the art that the embodiments described herein may be combined with other embodiments, in case at least two embodiments are combined together without contradiction.
The embodiment of the application provides a charging method of a battery, which is described in detail below with reference to the accompanying drawings. Referring to fig. 1, fig. 1 is a schematic flow chart illustrating 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, and S104, and the steps S101, S102, S103, and S104 are described as follows.
S101: and acquiring the current battery temperature.
The battery temperature can be obtained by measuring through a sensor, and the mode of measuring the battery temperature through the sensor can be a contact type or a non-contact type, wherein the contact type means that the sensor and the battery have good contact, and the non-contact type means that the sensor and the battery are not in contact with each other.
Alternatively, the battery temperature is measured by a plurality (two or more) of sensors in combination. Specifically, the number of the sensors is plural, wherein a part of the sensors is disposed outside the battery and is used for detecting the temperature outside the battery (the temperature outside the battery), and another part of the sensors is disposed inside the battery and is used for detecting the temperature inside the battery (the temperature inside the battery), and the temperature of the battery is obtained by integrating the temperature outside the battery and the temperature inside the battery. It can be understood that the battery temperature is comprehensively measured by arranging the sensors inside and outside the battery, so that the problem of inaccurate measurement of the battery temperature 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 supplying electric energy to the electronic equipment. The battery can be positioned in the electronic equipment and is wrapped by the shell of the electronic equipment; the battery may also be located outside the electronic device, exposed to the environment. Wherein, electronic equipment can be cell-phone, panel computer, notebook computer, portable power source, unmanned aerial vehicle, electronic book, electric bicycle, electric motorcycle, electric automobile, wearable equipment (for example wrist-watch, bracelet, intelligent glasses, wireless earphone etc.), bluetooth stereo set, electric toothbrush, chargeable wireless mouse, sweep the floor the equipment that possesses the battery such as robot, electron cigarette.
S102: and judging whether the acquired current battery temperature is less than a temperature value within a preset temperature range.
The preset temperature range is the temperature range within which the battery can be rapidly charged, namely, when the temperature of the battery is within the preset temperature range, the battery can be rapidly charged, and the corresponding maximum temperature range of the battery can be rapidly charged is referred to as the rapid charging temperature range.
Further, the preset temperature range may be just equal to the fast charging temperature range, for example, the fast charging 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 fast charging temperature range that is not equal to the fast charging temperature range, for example, the fast charging temperature range is 30 ℃ to 50 ℃, and the preset temperature range is set to 40 ℃ to 50 ℃.
It is understood that the fast charging temperature range is related to the property of the battery itself, 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 application does not limit the specific values of the preset temperature range.
S103: when the obtained current battery temperature is smaller than the temperature value within the preset temperature range, the battery is heated for a first time length by using first heating power, and then the battery is heated for a second time length by using second heating power, so that the temperature of the battery reaches the preset temperature range. 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 first heating power may be 20W, 30W, 50W, 55W, 60W, 72W, etc., and correspondingly, 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 all the time from the outside, 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 can make up at least part of the heat taken away by the low temperature outside, and the battery can be heated to the preset temperature range more quickly.
The first duration refers to the duration of the first heating power in the battery heating process, and similarly, the second duration refers to the duration of the 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, both the heating power and the heating duration may be different at different ambient temperatures. For example, when the ambient temperature is low, the first heating power may be greater, and the duration of the first period may be longer. When the ambient temperature is higher, the first heating power may be smaller, and the duration of the first period may also be shorter.
It should be noted that specific values of the first heating power, the second heating power, the first time period and the second time period are determined according to actual situations, and the application is not limited thereto.
Further, the heating of the battery can be realized by a heating element, and the battery can be heated by the heating element in an external heating mode or an internal heating mode. The external heating refers to disposing a heating element outside the battery, and transferring heat generated by heating the heating element from the outside of the battery to the inside of the battery, for example, disposing a heating wire outside the battery for heating. The internal heating means that a heating member is arranged inside the battery, and heat generated when the heating member is heated is transferred from the inside of the battery to the outside of the battery, for example, a resistor disc is arranged inside the battery for heating.
In other embodiments, the battery may be heated by both internal and external heating. Specifically, the heating member includes interior heating member and outer heating member, and interior heating member sets up inside the battery, and outer heating member sets up in the battery outside, and interior heating member and outer heating member can heat the battery simultaneously for the inside and outside of battery realizes the temperature rise simultaneously, 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 inside and outside simultaneous heating also can be faster with the battery heating to predetermine the temperature range.
In the related art, in order to heat the battery in the low temperature environment to the preset temperature range more quickly, the battery is generally heated continuously with a larger heating power, so as to shorten the heating time. However, if the battery is continuously heated with a large heating power, the battery is heated by adopting external heating or internal heating, which causes the temperature of the battery to be unevenly distributed in the temperature rising process, that is, the temperature of the part of the battery close to the heating member is high, and the temperature of the part far away from the heating member is relatively low, thereby causing temperature difference. However, the uneven temperature distribution may increase the aging rate of the battery, reduce the life of the battery, and even cause fire. The reason why the temperature distribution is not uniform is that the battery has a three-dimensional structure with a certain length, width and thickness, and the heat generated by the heating element is diffused on the battery away from the heating element in the heating and warming process, so that the overall warming of the battery is realized.
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 for a first duration, and then the second heating power is used to heat for a second duration. It can be understood that, according to the above heating method, the heat generated in the first time period is used as a main heat source for heating the battery, and the subsequent second time period can provide a diffusion condition for the heat generated in the first time period, that is, the heat generated in the first time period can be fully diffused to other parts of the battery in the subsequent second time period, so that the heat of each part of the battery is as uniform as possible, and the situation of excessive temperature difference of each part of the battery does not occur as much as possible, thereby avoiding the situations of too fast reduction of the service life of the battery, fire of the battery, 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.
It should be noted that, in the process of executing step S103, steps S101 and S102 are executed sequentially at the same time, or after step S103 is completed, steps S101 and S102 are executed sequentially. When it is determined in step S102 that the current battery temperature is 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, it is indicated that the current temperature of the battery can be quickly charged, and the battery is charged by using preset charging power, wherein the preset charging power is corresponding charging power when the battery is quickly charged.
Optionally, the preset charging power is equal to the first heating power, in other words, the power when the battery is rapidly charged is equal to the first heating power used when the battery is heated, so that the heating circuit and the charging circuit can 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 the related hardware module.
Referring to fig. 2, fig. 2 is a schematic flow chart illustrating a battery charging method according to another embodiment of the present disclosure. In conjunction with the charging method described in the foregoing embodiment, "step S103: when the acquired current battery temperature is less than the temperature value within the preset temperature range, heating the battery for a first time period by using first heating power, and heating the battery for a second time period by using second heating power "may include step S201, and the description about step S201 is as follows.
S201: and sequentially and circularly using the first heating power and the second heating power to heat the battery. 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 first heating power is used to heat the battery for a first time period, the second heating power is used to heat the battery for a second time period, and then the heating process is repeated, that is, the first heating power and the second heating power are cyclically used to heat the battery for the first time period and the second time period in sequence until the battery is heated to the preset temperature range. As shown in fig. 3, fig. 3 is a schematic power diagram provided by an embodiment of the present application, in which P1 is a first heating power, P2 is a second heating power, t1 is a first time period, and t2 is a second time period.
It can be understood that, the first heating power and the second heating power are used for heating the battery in a sequential and cyclic manner, so that the battery can be rapidly heated to a preset temperature range, and negative conditions generated when the battery is heated in a low-temperature environment can be overcome.
Alternatively, the first and second periods of time may be different during different heating periods. For example, the first duration is greater when the battery is initially heated, and is smaller when the temperature of the battery rises to a temperature near the preset temperature range after heating for a certain period of time.
Referring to fig. 4, fig. 4 is a schematic flow chart illustrating a battery charging method according to another embodiment of the present disclosure. In combination with the charging method described in any of the foregoing embodiments, "step S104: after the battery is charged by using the preset charging power when the acquired current battery temperature is within the preset temperature range, "steps S301 and S302 may also be included, but not limited to, as follows, the description about steps S301 and S302.
S301: and acquiring the current battery temperature in the charging process.
S302: and when the current battery temperature acquired in the charging process is lower than the target temperature, heating the battery by using third heating power so as to maintain the battery temperature within a preset temperature range. As shown in fig. 5, fig. 5 is a schematic power diagram provided by another embodiment of the present application, in which P4 is a preset charging power, and P3 is a third heating power.
It can be understood that, in a low-temperature environment, although the temperature of the battery is already heated to the preset temperature range, the low-temperature environment is also taking away the heat of the battery at all times, so that the temperature of the battery after the rapid charging is started still decreases, and if the heat taken away by the low-temperature environment is not supplemented, the temperature of the battery continuously decreases, and finally the charging speed decreases.
In this embodiment, the target temperature is a temperature value within a preset temperature range, and when the temperature of the battery in the charging process is decreased and is lower than the target temperature, the battery is heated by using the third heating power, so that part of heat taken away from the battery by the low-temperature outside is supplemented, the temperature of the battery is maintained within the preset temperature range, and continuous and rapid charging is realized.
Optionally, the value of the third heating power is a variable non-constant value, and the calculation expression of the third heating power may be:
P3＝(cm△T)/t-I2R
wherein P3 is the third heating power; c is the mass specific heat capacity of the battery (or the volume specific heat capacity of the battery); m is the mass of the cell (or the volume of the cell); delta T is the difference between the current battery temperature and the target temperature in the charging process; t is heating time; i is a charging current; and R is the internal resistance of the battery.
The meaning of using the above expression is set forth below: in a low-temperature environment, the temperature of the battery in a rapid charging state is reduced under the influence of the ambient temperature, and the lower the ambient temperature is, the larger the heat taken away by the external environment is, the more the temperature of the battery is reduced, and the battery isThe smaller the temperature is, the lower the target temperature is, or even the temperature is less than the minimum temperature value within the preset temperature range, at this time, more heat needs to be provided to the battery, so that the temperature of the battery rises, and if the third heating power for heating the battery is a smaller constant value, the temperature of the battery may continuously drop, and finally, the charging speed drops. In the above expression, Δ T is a difference between a current battery temperature and a target temperature during charging, and if the ambient temperature is lower, the battery temperature is decreased more, and Δ T is larger, the third heating power P calculated by using the above expression is obtained3The larger, in short, the larger the battery temperature drop, the larger the third heating power P3. Therefore, the third heating power P3 calculated by using the above expression can be applied to different low-temperature scenes, that is, the battery temperature can be maintained within the preset temperature range by the third heating power in different low-temperature scenes, so that continuous and rapid charging can be realized.
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 is 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, Δ T may be, but is not limited to, a minimum temperature value-battery temperature, a maximum temperature value-battery temperature, an average temperature value-battery temperature, and the like.
It should be noted that the heating time t in the above expression can be set artificially, for example, the heating time t is set to 1 second, 2 seconds, 2.1 seconds, 3 seconds, etc., and it is understood that the smaller the heating time t is, the smaller the third heating power P is3The larger the temperature rise of the battery.
The present application also provides an electronic device 1, and the electronic device 1 is described below with reference to the drawings. Referring to fig. 6, fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure. The electronic device 1 may perform the charging method described in any of the above embodiments, and please refer to the drawings and the description in the above embodiments of the charging method in connection with the following embodiments of the electronic device 1.
The electronic device 1 may include a battery 10, a sensor 30, a heating element 20, and a processor 40, wherein the processor 40 is electrically connected to the battery 10, the sensor 30, and the heating element 20, respectively, as described below.
The battery 10, which is used for supplying power to the electronic device 1, 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 a detachable connection or an unremovable connection.
And a sensor 30 for acquiring the current battery temperature, wherein the battery temperature can be measured in a contact or non-contact manner.
And a heating member 20 for heating the battery 10, wherein the heating type may be external heating and/or internal heating.
And 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 smaller than a temperature value within a preset temperature range. When the acquired 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 time period by using the first heating power, and then to heat the battery 10 for a second time period by using the second heating power. When the acquired current battery temperature is within the preset temperature range, the processor 40 controls to charge the battery 10 by using a 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 vehicle, a wearable device (such as a watch, a bracelet, smart glasses, a wireless headset, etc.), a bluetooth sound box, an electric toothbrush, a rechargeable wireless mouse, a sweeping robot, an electronic cigarette, etc. having the battery 10.
It can be understood that the heat generated in the first time period is used as a main heat source for heating the battery 10, and the subsequent second time period can provide a diffusion condition for the heat generated in the first time period, that is, the heat generated in the first time period can be sufficiently diffused to other parts of the battery 10 in the subsequent second time period, so that the heat of each part of the battery 10 is as consistent as possible, and the situation that the temperature difference of each part of the battery 10 is too large is avoided as far as possible, thereby avoiding the situations that the service life of the battery 10 is too fast, the battery 10 is ignited, 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 that occurs when the battery 10 is heated in a low-temperature environment.
Further, when the processor 40 determines that the acquired 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 element 20 to heat the battery 10 for a first time period by using the first heating power, controls the heating element 20 to heat the battery 10 for a second time period by using the second heating power, and repeats the heating process until the battery 10 is heated to the preset temperature range. It can be understood that, the first heating power and the second heating power are used to heat the battery 10 in a sequential cycle, so that the battery 10 can be heated to the preset temperature range quickly, and the negative condition generated when the battery 10 is heated in a low-temperature environment can be overcome.
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 a target temperature, the processor 40 is further configured to control the heating element 20 to heat the battery 10 with a third heating power, so as to maintain the battery temperature within a preset temperature range, where the target temperature is a temperature value within the preset temperature range. It can be understood that, when the battery 10 is charged in a low-temperature environment, the battery 10 is heated by using the third heating power, so that a part of heat taken away 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 realized.
Optionally, the preset charging power is equal to the first heating power. So set up and to make heating circuit and charging circuit sharing part circuit to can reduce the complexity of circuit, reduce circuit occupation space, the occupation volume of relevant hardware module also can corresponding reduction.
Alternatively, the value of the third heating power is a variable non-constant value, which can be calculated by the processor 40.
The computational expression for the third heating power may be:
P3＝(cm△T)/t-I2R
wherein P3 is the third heating power; c is the mass specific heat capacity of the battery 10 (or the volumetric specific heat capacity of the battery 10); m is the mass of the battery 10 (or the volume of the battery 10); delta T is the difference between the current battery temperature and the target temperature in the charging process; t is heating time; i is a charging current; r is the internal resistance of the battery 10. It is understood that the third heating power P3 calculated by using the above expression can be applied to different low temperature scenarios, that is, the battery temperature can be maintained within the preset temperature range by the third heating power in different low temperature scenarios, so as to achieve 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 above 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 drawings) electrically connected to the battery body 130, wherein the heating body is configured to generate heat and transfer the heat to the battery body 130, thereby increasing the temperature of the battery 10.
The electronic device 1 further comprises a first switch s1 and a second switch s 2. 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 device 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 acquired 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 element 20 heats the battery 10 with the first heating power and the second heating power.
When the temperature of the battery rises to reach 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 with the preset charging power, and at the same time, the heating element 20 is suspended from heating the battery 10 with the first heating power and the second heating power.
When the battery 10 starts to be rapidly charged, the temperature of the battery still drops after the rapid charging is started because the battery 10 has a certain temperature difference with the low-temperature outside. When the current battery temperature during the charging process is lower than the target temperature, the processor 40 controls the first switch s1 and the second switch s2 to be simultaneously closed, so that the battery 10 is rapidly charged, and the heating element 20 also heats the battery 10 with the third heating power, so that the battery temperature can be maintained within the preset temperature range, thereby achieving continuous rapid charging.
Optionally, the first electrode 110 or the second electrode 120 serves as another heating electrode 210 of the heating element 20, in other words, the heating element 20 and the battery 10 share the first electrode 110 or the second electrode 120. So set up and to make heating circuit and charging circuit sharing part circuit to can reduce the complexity of circuit, reduce circuit occupation space, the occupation volume of relevant hardware module also can corresponding reduction.
The present application further provides an adapter 2, the adapter 2 being described below with reference to 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 cooperation with the electronic device 1, and the adapter 2 and the electronic device 1 can cooperate to perform the charging method described in any of the above embodiments, and reference is made to the drawings and the description in the above charging method embodiment for an embodiment of the adapter 2 below.
Referring to fig. 9, fig. 9 is a schematic diagram illustrating an electrical connection relationship between an adapter and an electronic device according to an embodiment of the present application, wherein the adapter 2 is used for electrically connecting to the electronic device 1 having a battery 10, a heating element 20 and a sensor 30. The adapter 2 comprises a processor 40, and 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 acquired 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 heat the battery 10 for a first duration with a first heating power, and then to heat the battery 10 for a second duration with 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 acquired current battery temperature is lower than the temperature value within the preset temperature range, the processor 40 is 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.
Further, the processor 40 is further configured to receive a current battery temperature during charging acquired by the sensor 30, and when the current battery temperature during charging is less than the target temperature, the processor 40 is further configured to control the heating element 20 to heat the battery 10 with a third heating power.
Although embodiments of the present application have been shown and described, it is understood that the above embodiments are illustrative and not restrictive, and that those skilled in the art may make changes, modifications, substitutions and alterations to the above embodiments without departing from the scope of the present application, and that such changes and modifications are also to be considered as within the scope of the present application.
Claims (15)
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 within a preset temperature range;
when the obtained current battery temperature is smaller than the temperature value within the preset temperature range, heating the battery for a first time length by using first heating power, and then heating the battery for a second time length by using 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.
2. The charging method of claim 1, wherein said heating the battery using a first heating power for a first period of time and then using a second heating power for a second period of time comprises:
and sequentially and circularly using the first heating power and the second heating power to heat the battery, wherein the duration of the first heating power is the first duration, and the duration of the second heating power is the second duration.
3. The charging method according to any one of claims 1 to 2, wherein after the step of charging the battery with a preset charging power when the acquired current battery temperature is within the preset temperature range, the method further comprises:
acquiring the current battery temperature in the charging process;
and when the current battery temperature acquired in the charging process is lower than the target temperature, heating the battery by using third heating power so as to maintain the battery temperature within a preset temperature range.
4. A charging method according to claim 3, wherein the calculation expression of the third heating power is:
P3＝(cm△T)/t-I2R
wherein P3 is the third heating power; c is the mass specific heat capacity of the battery (or the volume specific heat capacity of the battery); m is the mass of the cell (or the volume of the cell); delta T is the difference between the current battery temperature and the target temperature in the charging process; t is heating time; i is a charging current; and R is the internal resistance of the battery.
5. A charging method according to claim 3, wherein the preset charging power is equal to the first heating power.
6. An electronic device, characterized in that the electronic device comprises:
a battery;
the sensor is used for acquiring the current battery temperature;
a heating member for heating the battery;
the processor is electrically connected with the sensor and 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 within a preset temperature range, when the acquired current battery temperature is smaller than the temperature value within the preset temperature range, the processor controls the heating element to heat the battery for a first time by using first heating power, and then to heat the battery for a second time by using second heating power, and when the acquired current battery temperature is within the preset temperature range, the processor controls the battery to be charged by using preset charging power, wherein the second heating power is smaller than the first heating power.
7. The electronic device according to claim 6, wherein when the obtained current battery temperature is less than the temperature value in the preset temperature range, the processor is further configured to control the heating element to sequentially cycle a first heating power and a second heating power to heat the battery, wherein a duration of the first heating power is a first duration, and a duration of the second heating power is a second duration.
8. The electronic device of claim 6, wherein the sensor is further configured to obtain a current battery temperature during the charging process, and 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 the charging process is less than the target temperature.
9. The electronic device of claim 8, wherein the computational expression of the third heating power is:
P3＝(cm△T)/t-I2R
wherein P3 is the third heating power; c is the mass specific heat capacity of the battery (or the volume specific heat capacity of the battery); m is the mass of the cell (or the volume of the cell); delta T is the difference between the current battery temperature and the target temperature in the charging process; t is heating time; i is a charging current; and R is the internal resistance of the battery.
10. The electronic device of claim 8, wherein the preset charging power is equal to the first heating power.
11. The electronic device according to any one of claims 6 to 10, 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 member includes a heating body and a heating electrode, the electronic apparatus further 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 heater electrode and the processor;
when the acquired current battery temperature is smaller than the temperature value within the preset temperature range, the processor controls the first switch to be switched off and controls the second switch to be switched on, so that the heating element heats the battery.
12. The electronic apparatus according to claim 11, wherein the first electrode or the second electrode serves as another heating electrode of the heating element.
13. An adapter, characterized in that the adapter is used for electrically connecting to an electronic device having a battery, a heating element and a sensor, the adapter includes a processor, the processor is used for receiving the current battery temperature acquired by the sensor when the adapter is electrically connected to the electronic device, and judging whether the acquired current battery temperature is less than a temperature value within a preset temperature range, when the acquired current battery temperature is less than the temperature value within the preset temperature range, the processor is further used for controlling the heating element to heat the battery for a first duration with a first heating power, and then to heat the battery for a second duration with a second heating power, when the acquired current battery temperature is within the preset temperature range, the processor is further used for controlling the battery to be charged with a preset charging power, wherein the second heating power is less than the first heating power.
14. The adapter of claim 13, wherein when the obtained current battery temperature is less than the temperature value in the preset temperature range, the processor is further configured to control the heating element to sequentially cycle a first heating power and a second heating power to heat the battery, wherein a duration of the first heating power is a first duration, and a duration of the second heating power is a second duration.
15. The adapter of claim 13 wherein the processor is further configured to receive a current battery temperature during charging obtained 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.
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 true CN112467829A (en) | 2021-03-09 |
| CN112467829B 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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116667470A (en) * | 2022-11-10 | 2023-08-29 | 荣耀终端有限公司 | Charging method and electronic equipment |
Citations (3)
| 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 |
-
2020
- 2020-11-16 CN CN202011282507.2A patent/CN112467829B/en active Active
Patent Citations (3)
| 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116667470A (en) * | 2022-11-10 | 2023-08-29 | 荣耀终端有限公司 | Charging method and electronic equipment |
| CN116667470B (en) * | 2022-11-10 | 2024-05-24 | 荣耀终端有限公司 | Charging method and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112467829B (en) | 2023-05-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109586373B (en) | Battery charging method and device | |
| US12015296B2 (en) | Charging method and apparatus | |
| WO2019223312A1 (en) | Heating module, and heating method and heating system for battery pack | |
| US20140300311A1 (en) | Portable power bank and battery booster | |
| CN104577231B (en) | A kind of method that realizing quick charge, adapter, terminal and system | |
| CN109450058A (en) | Earphone charging method, earphone and computer readable storage medium | |
| CN102833387A (en) | Mobile terminal and processing method thereof | |
| CN110927592B (en) | Method and device for estimating peak power of battery | |
| CN112994173B (en) | Wireless charging method and device, equipment and storage medium | |
| US20180076634A1 (en) | Charging method and electronic apparatus | |
| CN106063072B (en) | Terminal device | |
| CA2692581C (en) | Method and apparatus for dynamic battery management control in a mobile communication device | |
| US20230243894A1 (en) | Charge/Discharge Test System and Charge/Discharge Test Method | |
| US9755210B2 (en) | Battery pack and method for controlling charge of battery pack | |
| CN109149690B (en) | Charging control device and method and electronic equipment | |
| KR20190049272A (en) | Apparatus and method for estimating SOC of battery | |
| CN110879361A (en) | Method and device for estimating residual capacity of battery and electronic equipment | |
| CN112467829B (en) | Charging method, electronic equipment and adapter | |
| CA2872258C (en) | System and method of extending useful life of power supply | |
| CN113665430B (en) | Quick charging method, equipment and storage medium of self-adaptive low-temperature environment | |
| CN113690513A (en) | Battery module and electronic device | |
| Vu et al. | Simultaneous internal heating for balanced temperature and state-of-charge distribution in lithium-ion battery packs | |
| CN105203957A (en) | Cell test method and system | |
| JPH11187587A (en) | Charge control circuit | |
| 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 |