WO2016188070A1

WO2016188070A1 - Temperature control method, device, terminal and storage medium

Info

Publication number: WO2016188070A1
Application number: PCT/CN2015/095660
Authority: WO
Inventors: 耿琦
Original assignee: 中兴通讯股份有限公司
Priority date: 2015-05-28
Filing date: 2015-11-26
Publication date: 2016-12-01
Also published as: CN106299548A

Abstract

A temperature control method, device, terminal and computer storage medium. The method comprises: if a temperature of a battery is determined to be lower than a preset alarm temperature, acquiring battery levels of two battery cells (1, 2) in the battery; determining, according to the battery levels of the two battery cells (1, 2), a discharge battery cell and a charge battery cell; and controlling the discharge battery cell to charge the charge battery cell.

Description

Temperature control method, device, terminal and storage medium

Technical field

The present invention relates to the field of battery technologies, and in particular, to a temperature control method, apparatus, terminal, and computer storage medium.

Background technique

The battery is a device that supplies power to terminals such as mobile phones and tablet PCs. The stability of the battery's own temperature (battery temperature) will ensure the normal power supply performance of the battery. Battery temperature This battery characteristic is more susceptible to external temperature. For example, in some areas of winter, the outdoor temperature is low. Under the influence of the external low temperature environment, the viscosity of the electrolyte inside the battery becomes larger, and the ions in the electrolyte are more Difficult to spread, the internal resistance of the battery increases, which in turn leads to a decrease in battery charging and discharging efficiency and capacity, and a deterioration in operational stability. This low temperature environment also causes a shortened battery life.

At present, there are two solutions to improve the battery temperature in a low temperature environment: (1) when the ambient temperature of the terminal is lower than the lowest temperature tolerated by the battery, the battery is no longer powered, and the terminal enters a shutdown state; The method causes the user to be unable to use the terminal, and the experience is greatly reduced. (2) additionally adding a heating device capable of heating the battery in the terminal, and when the ambient temperature of the terminal is lower than the lowest temperature tolerated by the battery, the heating device is activated to heat the battery to raise the temperature of the battery; Although the method can ensure the normal use of the battery, the additional heating device usually takes up a large space, which is undoubtedly an increase in design difficulty for a terminal having a limited volume such as a mobile phone.

Summary of the invention

In order to solve the existing technical problems, the embodiments of the present invention provide a temperature control method, device, terminal, and computer storage medium, which are simple in design, small in space occupation, and can effectively ensure electricity. The pool provides normal power for the terminal to enhance the user experience.

The technical solution of the embodiment of the present invention is implemented as follows:

The temperature control method provided by the embodiment of the invention includes:

When it is determined that the battery temperature of the battery is lower than a predetermined warning temperature, obtaining the electric quantity of the two batteries in the battery;

Determining the discharge cell and the charging cell according to the electric quantity of the two cells;

The discharge cell is controlled to charge the charging cell.

In the above solution, the determining that the battery temperature of the battery is lower than a predetermined warning temperature comprises:

Monitoring internal resistance information of the battery, determining battery temperature of the battery according to the internal resistance information, and comparing the determined battery temperature with the warning temperature; or

The battery temperature of the battery is known by at least one temperature sensor disposed around the battery, and the obtained battery temperature is compared with the magnitude of the warning temperature.

In the above solution, the determining the discharge cell and the charging cell according to the electric quantity of the two cells, including:

Read the power of two batteries;

Determining that the battery with a large amount of electricity in the two cells is a discharge cell;

It is determined that the battery cells having a small amount of electricity in the two cells are charging cells.

In the above solution, controlling the discharge cell to charge the charging cell comprises:

Controlling the discharge cell to charge the charging cell with the first current value, and monitoring the battery temperature;

If it is detected that the battery temperature is greater than a preset safe temperature, controlling the discharge cell to stop charging the charging battery;

If it is detected that the battery temperature is less than or equal to the preset safety temperature and is greater than or equal to the warning temperature, continue to control the discharge battery to charge the charging battery with the first current value;

If it is detected that the battery temperature is less than the warning temperature and is greater than or equal to the preset protection temperature, judge Whether the first current value is the current maximum value, if not the current maximum value, increasing the first current value, and controlling the discharge battery cell to charge the charging battery core with the increased current value.

In the above solution, after controlling the discharge cell to charge the charging cell with the increased current value,

If it is detected that the battery temperature is still less than the warning temperature and is greater than or equal to the protection temperature, it is determined whether the increased current value is the current maximum value;

If the increased current value is not the current maximum value, increase the current value again,

Until the battery temperature is greater than or equal to the warning temperature or the current value increases to the maximum.

In the above solution, when the control discharge cell is charged to the charging cell with the current maximum value,

If it is detected that the battery temperature is greater than or equal to the protection temperature, continue to control the discharge cell to charge the charging cell with the current maximum value;

If it is detected that the battery temperature is less than the protection temperature, the discharge cell is controlled to stop charging to the charging cell.

In the above solution, when the discharge cell is controlled to charge the discharge cell with the first current value, the increased current value, the re-increased current value or the current maximum value, the remaining amount of the discharge cell is / or charge the battery's charge;

If it is detected that the remaining electric quantity of the discharge cell is lower than the first predetermined threshold and/or the charging electric quantity of the charging cell is higher than the second predetermined threshold, stopping charging of the charging cell by the discharging cell;

Switching the charging direction, controlling the charging cell to charge the discharge cell.

The embodiment of the invention further provides a temperature control device, the device comprising:

a first determining unit configured to determine that the battery temperature of the battery is lower than a predetermined warning temperature;

a first acquiring unit configured to acquire a quantity of power of two batteries in the battery;

a second determining unit, configured to determine the discharge cell and the charging cell according to the power of the two cells;

The first control unit is configured to control the discharge cell to charge the charging cell.

In the foregoing solution, the first determining unit is further configured to:

In the above solution, the second determining unit is further configured to:

Read the power of two batteries;

In the above solution, the first control unit is configured to:

If it is detected that the battery temperature is less than the warning temperature and is greater than or equal to the preset protection temperature, determine whether the first current value is the current maximum value, if not the current maximum value, increase the first current value, and control the discharge cell to increase The current value is charged to the charging cell.

In the above solution, the first control unit is further configured to:

After controlling the discharge cell to charge the charging cell with the increased current value,

If the increased current value is not the current maximum value, increase the current value again until the battery temperature is greater than or equal to the warning temperature or the current value increases to the maximum.

In the above solution, the first control unit is further configured to:

When the discharge cell is controlled to charge the charging cell with the current maximum value,

In the above solution, the first control unit is further configured to:

Remaining power and/or charging power to the discharge cell when controlling the discharge cell to charge the discharge cell with the first current value, the increased current value, the increased current value or the current maximum value The charge of the core is monitored;

An embodiment of the present invention provides a terminal, where the terminal includes at least the foregoing temperature control device.

The embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the foregoing temperature control method.

The temperature control method, device, terminal and computer storage medium provided by the embodiments of the present invention, wherein the method is applied to a terminal, comprising: determining that two of the batteries are when the battery temperature is lower than a predetermined warning temperature The electric quantity of the battery; determining the discharge cell and the charging cell according to the electric quantity of the two cells; controlling the discharge cell to charge the charging cell. The heat generated by the charging and discharging process between the batteries in the battery is used to increase the temperature of the battery, and the design is simple and the space is small, which can effectively ensure the normal power supply of the battery and improve the user experience.

DRAWINGS

1 is a schematic diagram showing the internal structure of a battery according to an embodiment of the present invention;

2 is a schematic flowchart of a temperature control method according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a setting of a temperature sensing device according to an embodiment of the present invention; FIG.

4 is a schematic diagram of a specific process of a temperature control method according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a temperature control device according to an embodiment of the present invention.

detailed description

The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings.

Before introducing the temperature control method and apparatus provided by the embodiments of the present invention, the internal structure of the battery to which the embodiment of the present invention is applied will be described. As shown in FIG. 1 , in the embodiment, the battery adopts two batteries for storing battery power, the position of the battery core 11 and the battery core 12 , and the positive and negative pins of the battery core 11 and the battery core 12 are as follows. As shown in FIG. 1 , the negative poles of the two batteries are connected to the battery negative interface. In addition, the battery further includes: a charging control circuit 13 and a switching circuit 14 connected to the charging control circuit 13; The anodes of the cells 11 and the cells 12 are connected to the charge control circuit 13 on the one hand and to the switch circuit 14 on the other hand. For the functions of the charging control circuit 13 and the switching circuit 14 and the two cells, please refer to the following scheme. The charging control circuit 13 can be implemented by a control chip, a control device, or the like in the related art, such as a BX8020 chip and a BX8022 chip. The switch circuit 14 can be implemented by a switch chip device in the related art, such as an ADG633 chip and an ADG733. Chip, ADG786 chip. Here, it should be noted that although the foregoing describes several models of the chip capable of implementing the charge control module 13 and the switch circuit 14, it does not mean that the charge control module 13 and the switch circuit 14 in the present embodiment can only Through the foregoing several types of chips, the charging control module 13 can also be implemented by other chips or devices having a boosting function; the switching circuit 14 can also be used by other chips or devices having a switching function, such as a single-pole double-throw switch. achieve.

The temperature control method provided by the embodiment of the present invention can be applied to a terminal, where the terminal can be a mobile phone, a PAD, a notebook computer, and a smart wearable device such as a smart watch; The terminal can also be any small device that can be used as a battery, such as a learning machine, a Wenqu star, or a large device such as a base station.

FIG. 2 is a schematic flowchart diagram of a temperature control method according to an embodiment of the present invention. As shown in FIG. 2, the method includes:

Step 201: When it is determined that the battery temperature is lower than a predetermined warning temperature, acquire the power of two batteries in the battery;

Here, the battery is built in the mobile phone as an example, the mobile phone (specifically, the baseband processor in the mobile phone) monitors the internal resistance information of the battery, and determines the battery temperature of the battery according to the internal resistance information. (The battery temperature at this time is close to or the same as the ambient temperature at which it is located), and compares the determined battery temperature with the magnitude of the alert temperature. The internal resistance information includes at least an ohmic resistance value and a polarization resistance value. In the related art, the value of the internal resistance of the battery has a certain regularity with the battery temperature itself, so the internal resistance information and the law can be used. Get the current battery temperature (or ambient temperature). For example, for a lithium battery, a lithium battery with a voltage of 3.8V is taken as an example, and the internal resistance of the battery is assumed to be 30 milliohms at 25 ° C. When the temperature of the battery is lowered to 10 ° C, the internal resistance of the battery can be increased. Up to 31.5 milliohms, 1.05 times the internal resistance at room temperature; when the cell temperature is lowered to 0 °C, the internal resistance of the cell can be increased to 33 milliohms, which is 1.1 times the internal resistance at room temperature; when the cell temperature is lowered At -10 ° C, the internal resistance of the cell can be increased to 36 milliohms, 1.2 times the internal resistance at room temperature; it can be seen that the internal resistance of the cell has an increasing characteristic with the decrease of the ambient temperature.

Alternatively, as shown in FIG. 3, at least one temperature sensor such as a thermistor may be disposed around the battery, and the battery temperature of the battery (the ambient temperature of the battery) is known by the temperature sensor, and the obtained knowledge is compared. The battery temperature to the size of the alert temperature. The battery, specifically the charge control circuit 13, is notified when the baseband processor determines that the battery temperature is below the alert temperature.

Step 202: Determine a discharge cell and a charging cell according to the power of the two cells;

Here, the battery, specifically the charging control circuit 13 receives the notification, reads the amount of power of the two cells, and determines the amount of power in the two cells, and the large amount of electricity acts as a discharge cell. The small amount of electricity acts as a charging cell, and controls the discharge cell to charge the charging cell, that is, the direction of the current between the control cells is from the discharge cell to the charging cell.

Step 203: Control the discharge cell to charge the charging cell.

Here, in the process in which the charging control circuit 13 controls the discharge cell to charge the charging cell, that is, the control discharge cell transmits a certain current to the charging cell, there is an internal resistance in the cell, and physically, the current flowing through the internal resistance necessarily causes The generation of heat of the battery, the heat can be used to prevent the battery temperature from continuing to decrease or increase the temperature of the battery; the heat can make the ion movement in the electrolyte inside the battery tend to be active and easy to diffuse, so that the battery charging and discharging efficiency and capacity will be There is improvement and work stability will increase. In the process of transmitting current, both the discharge cell and the charging cell can generate heat. In theory, the discharge cell generates more heat than the charging cell.

During the charging of the charging cell to the charging cell, the amount of the discharging cell and/or the charging amount of the charging cell are monitored in real time, and once the remaining capacity of the discharging cell is detected to be lower than the first predetermined threshold and / Or the charging power of the charging cell is higher than the second predetermined threshold, then stopping the charging of the charging cell by the discharging cell; switching the charging and discharging direction. That is, the charging battery is switched to be the discharging battery, the discharging battery is the charging battery, and the charging battery before the role switching is controlled to charge the discharging battery before the role switching.

After the discharge cell is charged to the charging cell for a period of time, there are three kinds of changes in the battery temperature: 1) the battery temperature is obviously improved, and the normal power supply to the mobile phone can be guaranteed. Charge and discharge between the cells; 2) The battery temperature is improved but not obvious, and the battery needs to continue charging and discharging; 3) The external environment temperature drops too fast, so that the battery temperature is not raised enough to offset the extreme external temperature. Reduced so that the battery temperature does not increase. For a detailed description of these three situations, please refer to the subsequent description of Figure 4, which will not be repeated here.

FIG. 4 is a schematic diagram of a specific process of a temperature control method according to an embodiment of the present invention. For example, as shown in FIG. 4, the method further includes:

Step 401: During the process of using or standby, the mobile phone, specifically the baseband processor Monitoring the internal resistance information of the battery at intervals or at intervals, determining the ambient temperature of the battery according to the law corresponding to the internal resistance information and the battery temperature; or obtaining the temperature sensor disposed around the battery The ambient temperature at which the battery is currently located;

Step 402: The mobile phone, specifically the baseband processor, compares the ambient temperature and the warning temperature of the current battery;

When the ambient temperature is lower than the warning temperature, proceed to step 403;

Otherwise, the process ends.

Step 403: The mobile phone, specifically the baseband processor, notifies the battery that the battery needs to be detected by sending an instruction; the battery, specifically the charging control circuit 13, detects the power of the two batteries, and determines that the power is large. Discharge cell, the current is small for the current charging cell;

Assuming that the current battery cell 1 is a discharge cell and the battery cell 2 is a charging cell, the switch circuit 14 is required to open a discharge cell, that is, a channel between the positive electrode of the battery cell 1 and the positive electrode interface of the battery, so that the positive and negative electrodes of the battery cell 1 and the battery are positive. The negative electrode interface is correspondingly connected, and the battery is powered by the discharge battery such as the battery core 1.

Step 404: The battery, specifically the charging control circuit 13 controls the battery cell 1 to charge the battery cell 2 with the first current value I1 (initial current value);

Generally, the operating voltage of the battery is 3.5 to 4.3 v. Considering that the output voltage of the charging core is convenient to charge the charging battery above the operating voltage of the battery, the charging control circuit 13 will discharge the battery. The output voltage of the core 1 is raised to 5V by its own boosting circuit, and the charging core, that is, the battery cell 2 is charged by the voltage of 5V; the first current value I1 can default to the minimum current value that the battery itself can transmit. It can also be a preset value, which is not limited here.

Step 405: After the battery cell 1 charges the battery cell 2 with the first current value I1 for a period of time, the mobile phone, specifically the baseband processor, monitors the battery temperature or the baseband processor monitors the battery temperature in real time;

If it is detected that the battery temperature is greater than the preset safe temperature, then step 406 is performed;

If it is detected that the battery temperature is less than or equal to the preset safe temperature and is greater than or equal to the alert temperature, Go to step 407;

If it is detected that the battery temperature is less than the warning temperature and is greater than or equal to the preset protection temperature, step 408 is performed;

Here, during the current transfer of the battery cell 1 to the battery cell 2, since there is an internal resistance in the battery cell, heat is generated when the current flows through the internal resistance, and the heat can be used to prevent the battery temperature from being affected by the ambient temperature. Reduce and/or increase battery temperature.

Step 406: The battery, specifically the charging control circuit 13 controls the discharge cell to stop charging to the charging cell, and the process ends;

When the battery temperature is monitored to be greater than the preset safe temperature, it indicates that after the battery 1 is charged to the battery core 2 for a period of time, the battery temperature is obviously improved, and the battery can be normally operated without charging and discharging between the batteries.

Step 407: The battery, specifically the charging control circuit 13 continues to control the discharge cell to charge the charging cell with the first current value I1 until the battery temperature is greater than the safe temperature, and the process ends;

If the battery temperature is monitored to be less than or equal to the preset safety temperature and greater than or equal to the warning temperature, it is indicated that the heat generated by the charge and discharge between the battery cell 1 and the battery cell 2 can prevent the battery temperature from decreasing as the ambient temperature decreases. Phenomenon, the battery temperature has been improved but not obvious, and it is necessary to carry out charge and discharge between the cells to ensure further improvement of the battery temperature.

Step 408: Determine whether the first current value I1 is a current maximum value;

If it is not the current maximum, step 409 is performed;

If the current is the maximum value, step 411 is performed;

Step 409: Increase the first current value I1, control the discharge cell to charge the charging cell with the increased current value I2, and continue to perform step 410.

If the battery temperature is less than the warning temperature and is greater than or equal to the preset protection temperature, it means that the heat generated by the charge and discharge between the cells is not enough to offset the decrease of the ambient temperature due to the drastic drop of the ambient temperature. The battery temperature is still at Falling state (currently generated by charge and discharge It is difficult for heat to prevent the temperature of the battery module from decreasing. At this time, the charge control circuit 13 is required to increase the charge and discharge current value between the cells to increase the heat generated by the battery.

Step 410: After controlling the discharge cell to charge the charging cell for a period of time after the increased current value I2, the mobile phone, specifically the baseband processor, monitors the battery temperature or the baseband processor monitors the battery temperature in real time. ;

If it is detected that the battery temperature is still less than the warning temperature and is greater than or equal to the protection temperature, it is judged whether the increased current value I2 is the current maximum value;

If the increased current value I2 is not the current maximum value, increase the current value I3 again, control the discharge cell to charge the charging cell with the increased current value I3, and then monitor the battery temperature after a period of time. If it is detected that the battery temperature is still less than the warning temperature and is greater than or equal to the protection temperature, it is judged whether the current value I3 after increasing again is the current maximum value, and if the current value after increasing again is not the current maximum value, continue to increase the current. The value is I4, and so on, until the battery temperature is greater than or equal to the warning temperature or the current value is increased to the maximum.

If the increased current value I2 is the current maximum value, step 411 is performed.

Here, the current value can be increased at a predetermined interval, such as increasing 5 mA each time; of course, it is also possible to increase 5 mA for the first time, 7 mA for the second time, and 10 mA for the third time (to increase the current maximum), etc. No specific restrictions.

Step 411: After the discharge cell is charged to the charging cell for a period of time (the third time period) with the current maximum value, the mobile phone, specifically the baseband processor, continuously monitors the battery temperature or the baseband processor performs the battery temperature in real time. monitor;

If it is detected that the battery temperature is greater than or equal to the protection temperature, continue to control the discharge cell to charge the charging cell with the current maximum; in this case, the heat generated by the charge and discharge between the cells can prevent the battery temperature from accompanying the external environment. The decrease in temperature reduces this phenomenon, but the blocking effect is small, and it is necessary to continue charging and discharging between the cells to help raise the battery temperature.

Controlling the discharge cell to stop charging if it is detected that the battery temperature is less than the protection temperature The battery is charged and the terminal is shut down; in this case, the ambient temperature drops drastically. Which current is used to charge and discharge between the cells cannot raise the battery temperature, and the battery needs to be shut down to ensure that the battery itself is not damaged.

In the foregoing process of controlling the battery cell 1 to charge the battery cell 2 with a certain current value, the charging control circuit 13 monitors the remaining power of the discharge cell and/or the charging amount of the charging cell in real time; if the discharge is detected The remaining power of the battery cell is lower than the first predetermined threshold and/or the charging power of the charging battery is higher than the second predetermined threshold, then the charging control circuit 13 stops charging the charging battery to charge the charging battery, and switches the charging and discharging direction, that is, switching. The charging cell is a discharge cell, the discharge cell is a charging cell, and the charging cell before the direction switching is controlled to charge the discharging cell before the direction switching (it can also be regarded as the interchange of the charging and discharging roles). For example, if the discharge cell, that is, the battery 1 has run out of power (the first predetermined threshold is 0) or the charge cell, that is, the charge of the battery 2, is full (the second predetermined threshold is 1500 mA), then the switch The battery cell 1 is a charging battery cell, the battery cell 2 is a discharge battery cell, and the battery cell 2 is controlled to charge the battery cell 1; during the discharge of the battery cell 2 to the battery cell 1, the remaining battery power of the battery cell 2 is continuously monitored. Lower than the first predetermined threshold and/or whether the charged amount of the battery 1 is higher than the second threshold, and if so, the role switching is performed again, and thus repeated until the battery temperature is higher than the safe temperature to stop charging and discharging between the batteries, Or the battery temperature is lower than the protection temperature, the phone enters the shutdown state, or the two batteries are completely exhausted and cannot be charged to the other party.

If it is detected that the remaining power of the discharge cell is not lower than the first predetermined threshold and the charge capacity of the charge cell does not satisfy the second predetermined threshold, then after the charge control circuit 13 controls the discharge cell to charge the battery for a period of time, the mobile phone Specifically, the baseband processor monitors the battery temperature and performs any of the steps 306-308 described above based on the monitored results.

It should be noted that, for the internal structure of the battery shown in FIG. 1, the outer surfaces of the battery 1, the battery 2, the charging control circuit 13, and the switch circuit 14 are wrapped with a heat conductive material such as graphite, which can make the temperature of the battery itself average, not This will result in a large temperature difference between different locations of the battery, which in turn will ensure the normal working performance of the battery. Among them, the battery core 1 and the battery core 2 are generated during the charging and discharging process of the battery core. Heat, which can increase the temperature of the battery; in addition, since the charging control circuit 13 has a function of raising the output voltage of the discharge cell and a function of controlling the current flowing from the discharge cell to the charging cell, it is also capable of generating heat itself. Heat is transferred to the two cells through the heat-conducting material, which can be used as an aid to increase the temperature of the battery.

Physically, the positive poles of the two cells are connected to the switch circuit 14, but when the charge and discharge are performed, the switch circuit 14 only opens the channel between the positive electrode of the discharge cell and the positive interface of the battery, so that the discharge cell is positive and negative. It communicates with the positive and negative terminals of the battery, and then the power is supplied to the mobile phone by the discharge battery; the channel between the positive and negative terminals of the charging battery and the positive and negative terminals of the battery is not turned on.

When the external power source charges the battery in the mobile phone, the switch circuit 14 simultaneously opens the channel between the positive and negative terminals of the discharge battery and the positive and negative terminals of the battery, the positive and negative terminals of the charging battery and the positive and negative terminals of the battery, so that the external power source At the same time, the discharge cell and the discharge cell are charged.

The values of the warning temperature, the safe temperature, the protection temperature, the first current value, and the current maximum value are all related to the type of the battery itself. Wherein, the protection temperature is less than the warning temperature, and the warning temperature is less than the safety temperature. The setting of these values can be achieved after the charging battery is charged to the discharge battery for a period of time, whether the charging process is helpful for the battery temperature increase and the degree of improvement. Judge. Taking a lithium battery as an example, the safe temperature can be 0°, the warning temperature can be -5°, and the protection temperature can be -10°. Of course, other reasonable values can be taken. The period of time may be in seconds, minutes, hours, or days, for example, the value is 10 minutes, and may be flexibly set according to the actual use of the battery.

It can be seen from the foregoing solutions that the advantages of the solution provided by this embodiment include the following:

(1) The method of improving the temperature of the battery by utilizing the physical heat generated by the charging and discharging process between the battery cells can effectively ensure the effect of temperature increase, and is designed in comparison with the prior art in which an additional heating device is required. Simple, no space, and enhance the user experience;

(2) Different switching of the charging and discharging roles between the cells ensures that the battery that has not reached the safe temperature is always in a state where the temperature is raised, further ensuring the effect of temperature increase;

(3) The scheme of using the physical heat generated by the charging and discharging process between the battery cells to raise the battery temperature is equivalent to realizing self-heating of the battery, and the self-heating method of the battery can be applied to any terminal or device using the battery. , can effectively ensure the battery is the normal power supply for the terminal.

Based on the foregoing temperature control method, the embodiment of the present invention further provides a temperature control device. As shown in FIG. 5, the device includes: a first determining unit 501, a first obtaining unit 502, a second determining unit 503, and a a control unit 504; wherein

The first determining unit 501 is configured to determine that the ambient temperature of the battery is lower than a predetermined alert temperature;

The first obtaining unit 502 is configured to acquire a quantity of power of two batteries in the battery;

The second determining unit 503 is configured to determine the discharge cell and the charging cell according to the power of the two cells;

The first control unit 504 is configured to control the discharge cell to charge the charging cell.

In the above solution, the first determining unit 501 is further configured to: monitor internal resistance information of the battery, determine battery temperature of the battery according to the internal resistance information, and compare the determined battery temperature with the The size of the warning temperature; or the battery temperature is known by at least one temperature sensor disposed around the battery, and the obtained battery temperature is compared with the warning temperature.

The second determining unit 503 is further configured to: read the electric quantity of the two cells; determine that the electric cells with large electric quantity in the two electric cells are the discharging cells; and determine that the electric quantity in the two electric cells is small The battery core is a charging battery.

The first control unit 504 is configured to: control the discharge battery to charge the charging battery with the first current value, and monitor the battery temperature;

If it is detected that the battery temperature is less than or equal to the preset safety temperature and is greater than or equal to the warning temperature, then continuing to control the discharge cell to charge the charging battery with the first current value;

If it is detected that the battery temperature is less than the warning temperature and is greater than or equal to the preset protection temperature, it is determined whether the first current value is the current maximum value, if not the current maximum value, the first current value is increased, and the discharge battery cell is controlled to increase The subsequent current value is charged to the charging cell.

The first control unit 504 is further configured to: after controlling the discharge cell to charge the charging battery with the increased current value, if it is detected that the battery temperature is still less than the warning temperature and greater than or equal to the protection temperature, the determination is increased. Whether the current value is the current maximum value;

If the increased current value is not the current maximum value, increase the current value again, and control the discharge cell to charge the charging battery with the current value again increased.

If it is detected that the battery temperature is still less than the warning temperature and is greater than or equal to the protection temperature, it is judged whether the current value after the increase is the current maximum value;

If the current value after increasing again is not the current maximum value, continue to increase the current value until the battery temperature is greater than or equal to the warning temperature or the current value is increased to the maximum.

The first control unit 504 is further configured to:

When the discharge cell charges the charging cell with the current maximum value, the battery temperature is continuously monitored;

The first control unit 504 is further configured to:

Controlling the discharge cell with the first current value, the increased current value, and increasing again When the current value or the current maximum value is charged to the discharge cell, the remaining power of the discharge cell and/or the charge amount of the charging cell are monitored;

In a practical application, the first determining unit 501, the first obtaining unit 502, the second determining unit 503, and the first control unit 504 may all be processed by a central processing unit (CPU, Central Processing Unit) or digital signal in the terminal. (DSP, Digital Signal Processor), or Microprocessor Unit (MPU), or Field Programmable Gate Array (FPGA).

It will be understood by those skilled in the art that the implementation functions of the respective processing units in the temperature control device shown in FIG. 5 can be understood with reference to the related description of the aforementioned temperature control method. Those skilled in the art should understand that the functions of the processing units in the apparatus shown in FIG. 5 can be implemented by a program running on a processor, or can be implemented by a specific logic circuit.

Embodiments of the present invention provide a battery, the battery including a first battery core, a second battery core, and a power source for acquiring two batteries in the battery, and determining a discharge according to the power of the two batteries Charge control circuit for battery cells and charging cells. The specific composition of the battery is the same as that of the battery shown in FIG. 1 and FIG. 3 . For the function of each component, please refer to the foregoing description of FIG. 1 and FIG. 3 , and details are not described herein again.

An embodiment of the present invention further provides a terminal, where the terminal includes the foregoing temperature control device.

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention can take the form of a hardware embodiment, a software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

Industrial applicability

The temperature control method, device, terminal and computer storage medium provided by the embodiment of the present invention, wherein the method comprises: determining that the battery temperature is lower than a predetermined warning temperature, acquiring the power of two batteries in the battery; The amount of electricity of the two cells, determining the discharge cell and charging The battery core controls the discharge battery to charge the charging battery. The heat generated by the charging and discharging process between the batteries in the battery is used to increase the temperature of the battery, and the design is simple and the space is small, which can effectively ensure the normal power supply of the battery and improve the user experience.

Claims

A temperature control method, the method comprising:

When it is determined that the battery temperature of the battery is lower than a predetermined warning temperature, obtaining the electric quantity of the two batteries in the battery;

Determining the discharge cell and the charging cell according to the electric quantity of the two cells;

The discharge cell is controlled to charge the charging cell.
The method of claim 1 wherein said determining that the battery temperature of the battery is below a predetermined alert temperature comprises:

Monitoring internal resistance information of the battery, determining battery temperature of the battery according to the internal resistance information, and comparing the determined battery temperature with the warning temperature; or

The battery temperature of the battery is known by at least one temperature sensor disposed around the battery, and the obtained battery temperature is compared with the magnitude of the warning temperature.
The method of claim 1, wherein the determining the discharge cell and the charging cell according to the amount of power of the two cells comprises:

Read the power of two batteries;

Determining that the battery with a large amount of electricity in the two cells is a discharge cell;

It is determined that the battery cells having a small amount of electricity in the two cells are charging cells.
The method according to any one of claims 1 to 3, wherein controlling the discharge cell to charge the charging cell comprises:

Controlling the discharge cell to charge the charging cell with the first current value, and monitoring the battery temperature;

If it is detected that the battery temperature is greater than a preset safe temperature, controlling the discharge cell to stop charging the charging battery;

If it is detected that the battery temperature is less than or equal to the preset safe temperature and is greater than or equal to the alert temperature, Continue to control the discharge cell to charge the charging cell with the first current value;

If it is detected that the battery temperature is less than the warning temperature and is greater than or equal to the preset protection temperature, determine whether the first current value is the current maximum value, if not the current maximum value, increase the first current value, and control the discharge cell to increase The current value is charged to the charging cell.
The method according to claim 4, wherein after the discharge cell is controlled to charge the charging cell with the increased current value,

If it is detected that the battery temperature is still less than the warning temperature and is greater than or equal to the protection temperature, it is determined whether the increased current value is the current maximum value;

If the increased current value is not the current maximum value, increase the current value again,

Until the battery temperature is greater than or equal to the warning temperature or the current value increases to the maximum.
The method according to claim 5, wherein when the discharge cell is controlled to charge the charging cell with a current maximum value,

If it is detected that the battery temperature is greater than or equal to the protection temperature, continue to control the discharge cell to charge the charging cell with the current maximum value;

If it is detected that the battery temperature is less than the protection temperature, the discharge cell is controlled to stop charging to the charging cell.
The method according to claim 6, wherein when the discharge cell is controlled to charge the discharge cell with the first current value, the increased current value, the re-increased current value or the current maximum value, Monitoring the remaining capacity of the discharge cell and/or the charge level of the charging cell;

If it is detected that the remaining electric quantity of the discharge cell is lower than the first predetermined threshold and/or the charging electric quantity of the charging cell is higher than the second predetermined threshold, stopping charging of the charging cell by the discharging cell;

Switching the charging direction, controlling the charging cell to charge the discharge cell.
A temperature control device, the device comprising:

a first determining unit configured to determine that the battery temperature of the battery is lower than a predetermined warning temperature;

a first acquiring unit configured to acquire a quantity of power of two batteries in the battery;

a second determining unit, configured to determine the discharge cell and the charging cell according to the power of the two cells;

The first control unit is configured to control the discharge cell to charge the charging cell.
The apparatus according to claim 8, wherein the first determining unit is further configured to:

Monitoring internal resistance information of the battery, determining battery temperature of the battery according to the internal resistance information, and comparing the determined battery temperature with the warning temperature; or

The battery temperature of the battery is known by at least one temperature sensor disposed around the battery, and the obtained battery temperature is compared with the magnitude of the warning temperature.
The apparatus according to claim 8, wherein the second determining unit is further configured to:

Read the power of two batteries;

Determining that the battery with a large amount of electricity in the two cells is a discharge cell;

It is determined that the battery cells having a small amount of electricity in the two cells are charging cells.
The apparatus according to any one of claims 8 to 10, wherein the first control unit is configured to:

Controlling the discharge cell to charge the charging cell with the first current value, and monitoring the battery temperature;

If it is detected that the battery temperature is greater than a preset safe temperature, controlling the discharge cell to stop charging the charging battery;

If it is detected that the battery temperature is less than or equal to the preset safety temperature and is greater than or equal to the warning temperature, continue to control the discharge battery to charge the charging battery with the first current value;

If it is detected that the battery temperature is less than the warning temperature and is greater than or equal to the preset protection temperature, determine whether the first current value is the current maximum value, if not the current maximum value, increase the first current value, and control the discharge cell to increase The current value is charged to the charging cell.
The apparatus according to claim 11, wherein said first control unit is further configured for:

After controlling the discharge cell to charge the charging cell with the increased current value,

If it is detected that the battery temperature is still less than the warning temperature and is greater than or equal to the protection temperature, it is determined whether the increased current value is the current maximum value;

If the increased current value is not the current maximum value, increase the current value again until the battery temperature is greater than or equal to the warning temperature or the current value increases to the maximum.
The device according to claim 12, wherein the first control unit is further configured to:

When the discharge cell is controlled to charge the charging cell with the current maximum value,

If it is detected that the battery temperature is greater than or equal to the protection temperature, continue to control the discharge cell to charge the charging cell with the current maximum value;

If it is detected that the battery temperature is less than the protection temperature, the discharge cell is controlled to stop charging to the charging cell.
The device according to claim 13, wherein the first control unit is further configured to:

Remaining power and/or charging power to the discharge cell when controlling the discharge cell to charge the discharge cell with the first current value, the increased current value, the increased current value or the current maximum value The charge of the core is monitored;

If it is detected that the remaining electric quantity of the discharge cell is lower than the first predetermined threshold and/or the charging electric quantity of the charging cell is higher than the second predetermined threshold, stopping charging of the charging cell by the discharging cell;

Switching the charging direction, controlling the charging cell to charge the discharge cell.
A terminal comprising at least the temperature control device according to any one of claims 8 to 14.
A computer storage medium having stored therein computer executable instructions for performing the method of any one of claims 1 to 7. law.