WO2017197705A1

WO2017197705A1 - Temperature control method and device

Info

Publication number: WO2017197705A1
Application number: PCT/CN2016/086741
Authority: WO
Inventors: 周鹏辉; 王建成; 陈涛
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-05-17
Filing date: 2016-06-22
Publication date: 2017-11-23
Also published as: CN107390746A

Abstract

A temperature control method, comprising: obtaining a current temperature of a first apace when a current preset time period is reached; controlling, according to the current temperature of the first apace, whether first heat is generated, and generating the first heat when the current temperature of the first apace is less than a preset threshold; and increasing the current temperature of the first apace according to the first heat. Embodiments of the present invention also provide a temperature control device.

Description

Temperature control method and device

Technical field

This document relates to, but is not limited to, control technology in the field of electronics, and more particularly to a temperature control method and apparatus.

Background technique

With the development of electronic technology and the improvement of people's living standards, the application of terminals (especially smart terminals) has become more and more extensive. At present, smart terminals are basically powered by lithium-ion batteries. Since the lithium ion battery is greatly affected by the temperature, the charging and discharging of the lithium battery can only be performed within a certain temperature range. For example, a lithium ion battery generally has a negative temperature coefficient (NTC) thermistor, and the smart terminal determines the battery temperature according to the NTC thermistor, and determines whether the lithium electronic battery can be determined according to the temperature of the battery. Charge and discharge.

However, the smart terminal is used by the user in various application scenarios. When the smart terminal is used in a cold environment with low temperature, the battery temperature of the lithium ion battery is also low due to the low temperature of the external environment, due to lithium. When the battery temperature of the electronic battery is low, its activity will be insufficient. Therefore, even if the battery of the lithium battery is fully charged, it will cause a low power shutdown after a period of use. Even when the battery temperature is too low, the lithium ion battery of the smart terminal will enter the protection state and cannot be charged and discharged. Forcibly charging and discharging when the battery temperature is too low may cause serious accidents.

Summary of the invention

The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.

The embodiment of the invention provides a temperature control method and device, which can improve the adaptability of the terminal to the environment and ensure the normal use and security of the terminal in a low temperature environment.

Embodiments of the present invention provide a temperature control method, including:

Obtaining the current temperature of the first space when the current preset time period arrives;

Controlling whether to generate a first heat according to a current temperature of the first space; when the first space The first heat is generated when a current temperature in the middle is lower than a preset threshold;

Increasing a current temperature of the first space according to the first heat.

Optionally, the method further includes:

After the current temperature of the first space is increased according to the first heat, when the current temperature of the raised first space is greater than a preset target temperature, the first heat is stopped, and the next time is When the time period is reached, the next temperature control process begins.

Optionally, the method further includes:

Obtaining a temperature control start instruction before acquiring the current temperature of the first space when the current preset time period arrives;

The current temperature control flow is started according to the temperature control start command.

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

Obtaining a unit, configured to acquire a current temperature of the first space when the current preset time period arrives;

a control unit, configured to control whether the first heat is generated according to the current temperature of the first space acquired by the acquiring unit;

a generating unit, configured to generate the first heat when the control unit controls that a current temperature in the first space is lower than a preset threshold;

And an increasing unit configured to increase a current temperature of the first space according to the first heat generated by the generating unit.

Optionally, the temperature control device further includes: a stopping unit;

The stopping unit is configured to: after the increasing unit increases the current temperature of the first space according to the first heat, when a current temperature of the first space after the increasing unit is raised is greater than a preset target temperature Stop generating the first heat and start the next temperature control process when the next preset time period arrives.

Optionally, the acquiring unit is further configured to: before the current preset time period arrives, acquire a temperature control start command before acquiring the current temperature of the first space; start the current temperature control according to the temperature control start command Process.

The embodiment of the invention further provides a temperature control device, which is disposed in the terminal, and includes:

An inner casing surrounding the battery of the terminal, forming an inner space defining a first space in which the battery is located, and an outer casing filled with a filler between the inner casing;

a temperature sensor, the temperature sensor being disposed in the filler;

a temperature detecting circuit connected to the temperature sensor, wherein the temperature detecting circuit is connected to a control chip of the terminal;

a heating device, the heating device being disposed in the filler;

A temperature increase control device connected to the heating device, wherein the temperature increase control device is connected to the control chip.

Optionally, the temperature detecting circuit includes: a Wheatstone bridge, an analog-to-digital converter connected to the Wheatstone bridge, and a first power source, where the analog-to-digital converter is connected to the control chip; The Stone bridge is composed of the temperature sensor, a first resistor, a second resistor, and a third resistor.

Optionally, the heating device includes: a second power source and a heating device; the temperature increasing control device includes: a first triode, and a fourth resistor connected to the first triode; the first The triode includes: a first base, a first collector, and a first emitter;

The heating device is respectively connected to the first collector and the second power source, the first base is connected to the control chip, and one end of the fourth resistor is connected to the first base, The other end of the four resistors is grounded and the first emitter is grounded.

Optionally, the temperature control device further includes: a charge and discharge switch circuit of the battery; and a charge and discharge switch circuit of the battery is connected to the control chip and the battery.

An embodiment of the present invention provides a temperature control method and device, which acquires a current temperature of a first space when a current preset time period arrives, and controls whether to generate a first heat according to a current temperature of the first space, and when the first The first heat is generated when the current temperature in the space is lower than a preset threshold; and the current temperature of the first space is increased according to the first heat. When the temperature control scheme is adopted by the above temperature control device, since the terminal can prevent the ambient temperature of the battery from being too low by keeping the ambient temperature of the battery within an adapted range, the temperature control device is used for the battery. The environmental temperature is controlled to improve the adaptability of the terminal to the environment and ensure the normal use and safety of the terminal in a low temperature environment.

Other aspects will be apparent upon reading and understanding the drawings and detailed description.

BRIEF abstract

1 is a flowchart 1 of a temperature control method according to an embodiment of the present invention;

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

3 is a third flowchart of a temperature control method according to an embodiment of the present invention;

4 is a schematic structural diagram 1 of a temperature control device according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram 2 of a temperature control device according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram 1 of a temperature control device installed in a terminal according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram 2 of a temperature control device installed in a terminal according to an embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of an outer casing, an inner casing, and a filler of an exemplary temperature control device according to an embodiment of the present invention; FIG.

FIG. 9 is a schematic structural diagram of a temperature sensor and a temperature detecting circuit of an exemplary temperature control device according to an embodiment of the present disclosure;

FIG. 10 is a schematic structural diagram of a heating device and a temperature rising control device of an exemplary temperature control device according to an embodiment of the present invention; FIG.

FIG. 11 is a schematic structural diagram 3 of a temperature control device installed in a terminal according to an embodiment of the present invention.

Embodiments of the invention

The technical solutions in the embodiments of the present invention will be clearly and completely described in the following with reference to the accompanying drawings.

Embodiment 1

The embodiment of the invention provides a temperature control method. As shown in FIG. 1 , the method may include:

S101. Acquire a current temperature of the first space when the current preset time period arrives.

S102. Control whether the first heat is generated according to the current temperature of the first space. The method includes: generating the first heat when the current temperature in the first space is lower than a preset threshold.

S103. Increase a current temperature of the first space according to the first heat.

It should be noted that a temperature control method provided by an embodiment of the present invention is applied to a temperature control device including a temperature maintaining module, a temperature collecting module, and a temperature control module, and the temperature control device may be disposed in a terminal, and the temperature maintaining module surrounds Around the battery of the terminal, a first space is formed that characterizes the external environment in which the battery is located. The first space is set to characterize the environment in which the terminal battery is located, and the temperature of the first space characterizes the ambient temperature of the battery of the terminal.

In the embodiment of the present invention, the terminal may acquire the current temperature of the first space through the temperature collection module periodically or periodically, that is, when the current preset time period arrives.

Optionally, the current preset time period in the embodiment of the present invention may be a fixed time length or a dynamically changing time length. For example, the preset time period may be 1 minute, and the current preset time period is also current. 1 minute. Optionally, the value setting of the preset time period may be set by a practical application or a designer, and is not limited by the embodiment of the present invention.

Optionally, considering that the temperature itself cannot be mutated, in order to save power consumption, and also to avoid overheating or excessive cooling of the terminal battery, the preset time period may be 30 seconds to 5 minutes.

Optionally, the temperature control device acquires the current temperature of the first space when the current preset time period arrives; and the temperature control device controls whether the first heat is generated according to the current temperature of the first space, when the current temperature in the first space When the preset threshold is lower, the first heat is generated; the temperature control device increases the current temperature of the first space according to the first heat.

It should be noted that the temperature control device in the embodiment of the present invention is a device disposed in the terminal, and the temperature control device is a temperature control device constructed by the battery of the terminal and the control chip of the main board.

The temperature control device in the embodiment of the present invention realizes the adjustment of the ambient temperature of the battery of the terminal through the combination of the hardware module and the software module.

Optionally, in the temperature control module, when the current temperature in the first space is lower than a preset threshold by the software module, the temperature control module is started, so that the temperature control module can be based on the current temperature of the first space. Controlling the generation of the first heat, thereby transmitting the first heat to the temperature maintaining module, by which the temperature of the first space is maintained within a reasonable temperature range, and the normal charging of the battery in the first space is ensured The temperature environment of the discharge.

It should be noted that the temperature control device provided by the embodiment of the present invention improves the ambient temperature of the battery when the ambient temperature of the battery is low, so that the battery cannot be normally charged and discharged. The temperature maintaining module is disposed around the battery to form a first space in which the battery is located, and the first space is a closed space. In the embodiment of the invention, the temperature control module can improve the ambient temperature of the battery by increasing the temperature of the first space.

It should be noted that the foregoing modules may be implemented by a physical device, and a physical structure will be specifically described in a subsequent physical device embodiment.

Optionally, since the temperature of the first space is affected by the temperature control device and the external environment, the temperature of the first space may be changed, so the temperature control device collects the current current of the first space. temperature.

Optionally, the specific structures of the temperature maintaining module, the temperature collecting module, and the temperature control module have been described in detail in the foregoing embodiments, and are not described herein again.

Optionally, when the current temperature in the first space is not lower than a preset threshold, the environment in which the battery is located is not cold, and the ambient temperature of the battery is not increased, and the sleep state is entered until the next temperature control process arrives.

Optionally, as shown in FIG. 2, after S103, a temperature control method provided by an embodiment of the present invention further includes: S104. details as follows:

S104: When the current temperature of the raised first space is greater than the preset target temperature, stop generating the first heat, and when the next preset time period arrives, start the next temperature control process.

After the temperature control device increases the current temperature of the first space according to the first heat, the current temperature of the first space is raised, and when the ambient temperature of the battery is high, it is not conducive to charging and discharging of the battery, etc., therefore, cannot be allowed The current temperature of the first space is increased without limit, and the temperature control device needs to limit the current temperature of the increased first space to stop the increase of the current temperature, that is, the current temperature of the first space after the increase. When the preset target temperature is greater than the preset target temperature, the temperature control device stops generating the first heat, and starts the next temperature control process when the next preset time period arrives.

Optionally, when the current temperature of the raised first space is greater than the preset target temperature, the temperature control device stops generating the first heat, and when the next preset time period arrives, starts the next temperature control process.

It should be noted that when the current temperature of the increased first space is greater than the preset target temperature, the flow of the temperature control ends, and the temperature control device does not process until the next preset time period is reached, the next time When the preset time period arrives, the temperature control device starts the next temperature control flow in accordance with the flow of S101-S103.

Optionally, the preset target temperature in the embodiment of the present invention may be set by a manufacturer or a user within a certain range. To avoid repeated activation of the heating measure, it is recommended that the preset target temperature be greater than the ambient temperature of the battery in the embodiment of the present invention. The corresponding preset threshold is 5° higher.

Optionally, as shown in FIG. 3, before S101, a temperature control method provided by an embodiment of the present invention further includes: S105-S106. details as follows:

S105. Acquire a temperature control start command.

S106. Start the current temperature control process according to the temperature control start command.

It should be noted that the temperature control method provided by the embodiment of the present invention can be considered as to whether setting is required, that is, a setting button of a temperature control function can be set in the setting interface of the terminal, and whether the temperature control method is performed based on the user behavior is determined. Specifically, the terminal acquires the operation of the user. When the user operates as a button that triggers the temperature control function to be turned on, the terminal acquires a temperature control start command, and starts to enter the current temperature control process according to the temperature control start command.

It should be noted that the terminal starts to enter the current temperature control process and starts the temperature control method of S101-S104.

An embodiment of the present invention provides a temperature control method, which acquires a current temperature of a first space when a current preset time period arrives, and controls whether to generate a first heat according to a current temperature of the first space, when in the first space When the current temperature is lower than a preset threshold, the first heat is generated; and the current temperature of the first space is increased according to the first heat. When the temperature control scheme is adopted by the above temperature control device, since the terminal can prevent the ambient temperature of the battery from being too low by keeping the ambient temperature of the battery within an adapted range, the temperature control device is used for the battery. The control of the ambient temperature can improve the adaptability of the terminal to the environment and ensure the normal use and safety of the terminal in a low temperature environment.

Embodiments of the present invention also provide a computer readable storage medium storing computer executable instructions for performing any of the methods described above.

Embodiment 2

As shown in FIG. 4, an embodiment of the present invention further provides a temperature control device 1, which may include:

The obtaining unit 14 is configured to acquire the current temperature of the first space when the current preset time period arrives.

The control unit 15 is configured to control whether the first heat is generated according to the current temperature of the first space acquired by the acquiring unit 14;

The generating unit 16 is configured to generate the first heat when the control unit 15 controls the current temperature in the first space to be lower than a preset threshold.

The boosting unit 17 is arranged to increase the current temperature of the first space in accordance with the first heat generated by the generating unit 16.

Optionally, as shown in FIG. 5, the temperature control device further includes: a stop unit 18.

The stopping unit 18 is configured to: after the raising unit 17 increases the current temperature of the first space according to the first heat, when the current temperature of the first space raised by the improving unit 17 is greater than a preset At the target temperature, the first heat is stopped and the next temperature control process is started when the next preset time period is reached.

Optionally, the obtaining unit 14 is further configured to: before the current preset time period arrives, acquire a temperature control start command before acquiring the current temperature of the first space; start the current temperature according to the temperature control start command Control process.

The terminal in the embodiment of the present invention may be an electronic device such as a mobile phone or a tablet. The specific type of the present invention is not limited.

Embodiment 3

It should be noted that, as shown in FIG. 6, the temperature control device 1 in the embodiment of the present invention is a device provided in the terminal 2, and the temperature control device 1 is constructed by the battery 20 of the terminal 2 and the control chip 21 of the main board. A temperature control device.

The temperature control device 1 in the embodiment of the present invention implements adjustment of the ambient temperature of the battery 20 of the terminal 2 through a combination of a hardware module and a software module.

As shown in FIG. 7, the embodiment of the present invention provides a temperature control device 1 which is disposed in the terminal 2. The temperature control device 1 may include:

Surrounding the battery 20 of the terminal 2, forming an inner casing 100 defining a first space in which the battery 20 is located, and a casing 101 filled with the filler 102 between the inner casing 100;

a temperature sensor 110, the temperature sensor 110 is disposed in the filler 102;

a temperature detecting circuit 111 connected to the temperature sensor 110, the temperature detecting circuit 111 being connected to the control chip 21 of the terminal 2;

a heating device 120, the heating device 120 is disposed in the filler 102;

The temperature increase control device 121 connected to the heating device 120 is connected to the control chip 21.

Specifically, as can be seen from FIG. 8 , the first heat is obtained by the filler 102 sealed between the outer casing 101 and the inner casing 100, and the first space is raised by the filler 102. Current Temperature. And, when the current temperature in the first space is lower than a preset threshold by the software module, the temperature increase control device 121 is activated, so that the temperature increase control device 121 can be controlled by the heating device 120 according to the current temperature of the first space. The first heat is generated, thereby transferring the first heat to the filler 102, so that the temperature of the first space is maintained within a reasonable temperature range, and the normal charging and discharging temperature environment of the battery 20 in the first space is ensured. .

It should be noted that the temperature control device 1 provided by the embodiment of the present invention improves the ambient temperature of the battery 20 when the ambient temperature of the battery 20 is low, so that the battery 20 cannot be normally charged and discharged. The outer casing 101, the inner casing 100 and the filler 102 are disposed around the battery 20 to form a first space in which the battery 20 is located, the first space being a closed space. In the embodiment of the present invention, the temperature increase control device 121 can increase the ambient temperature of the battery 20 by increasing the temperature of the first space by the heating device 120.

Optionally, since the temperature of the first space is affected by the temperature rising control device 121 and the external environment, the temperature of the first space may be changed, so the temperature detecting circuit 111 collects each time through the temperature sensor 110. Is the current temperature of the first space.

Alternatively, the specific configuration of the temperature detecting circuit 111 and the temperature rising control device 121 will be described in detail in the following embodiments.

It should be noted that the device that surrounds the battery 20 and forms the first space is composed of a casing that encloses the battery 20, and the casing is composed of a filler 102 filled between the inner casing 100, the outer casing 101, and the inner casing.

Optionally, the inner casing 100 and the outer casing 101 have a small space around the first space formed.

Optionally, the filler 102 in the embodiment of the present invention uses a material with a high specific heat capacity to isolate the influence of the external temperature on the battery 20. Alternatively, the filler 102 in the embodiment of the present invention may be air, water, or oil. medium.

It can be understood that when the filler 102 is a medium such as air, water or oil, the first space is regarded as the surrounding environment of the battery 20. Therefore, the temperature of the filler is the ambient temperature of the battery 20, that is, the temperature of the first space. .

Alternatively, the outer casing 101 uses a strong impact resistant material, such as metal aluminum, to protect the battery. The inner casing 100 uses a flexible material having good ductility, such as ABS (Acrylonitrile Butadiene Styrene) resin, which has good heat resistance and strong impact resistance. In addition to the circuit interface portion, the inner casing 100 and the outer casing 101 are preferably sealed so that the filler 102 between the two cannot flow out or escape.

Alternatively, the heating device 120 transmits the first heat to the filler 102 such that the temperature of the filler 102 rises, that is, the current temperature of the first space increases.

It can be understood that the casing surrounding the battery 20 forms a buffer of heat between the battery 20 and the external environment on the one hand, so that the temperature of the battery 20 is not affected too much by the external temperature; on the other hand, the inner casing 100 and the outer casing The space between the 101 (the first space) is small, making it easier to raise the temperature of the filler 102.

It should be noted that the function of the filler 102 in the embodiment of the present invention may be replaced by other structures having the same function, which is not limited in the embodiment of the present invention.

Optionally, the temperature of the filler 102 is sensed by the temperature sensor 110 to obtain a first analog quantity, and the first analog quantity is converted into a first digital quantity by the temperature detecting circuit 111, and finally The control chip 21 acquires a first temperature corresponding to the first digital quantity, and the first temperature is a current temperature of the first space.

It should be noted that since the temperature sensor 110 is disposed in the filler 102, when filling When the temperature of the charge 102 changes, the first analog quantity produced by the temperature sensor 110 changes. The temperature detecting circuit detects 111 the first analog quantity change to the temperature sensor and converts it into a first digital quantity, and finally outputs the first digital quantity to the control chip 21. Since the control chip 21 has a first digital quantity and temperature comparison table built therein, the temperature of the environment surrounding the battery 20 corresponding to the first digital quantity, that is, the current state of the first space, can be obtained by using the first digital quantity and the temperature comparison table. The temperature is gone.

Alternatively, the temperature sensor 110 can use an NTC thermistor. When the temperature of the filler 102 drops, the resistance of the NTC thermistor rises; other temperature sensors such as thermocouples can also be used.

It should be noted that when the temperature sensor 110 is an NTC thermistor, when the temperature of the filler 102 changes, the corresponding resistance analog quantity of the temperature sensor 110 (NTC thermistor) changes. The temperature detecting circuit detects 111 a change in the resistance analog quantity of the temperature sensor and converts it into a voltage analog quantity first, and the analog-to-digital converter 1111 of the temperature detecting circuit 111 converts the voltage analog quantity into a voltage digital quantity, and finally the voltage number The amount is input to the control chip 21. Since the control chip 21 has a built-in voltage and temperature comparison table, the temperature of the environment around the battery 20 corresponding to the voltage digital quantity, that is, the current temperature of the first space, can be obtained by the voltage and temperature comparison table.

Optionally, the embodiment of the present invention can also use the battery cell temperature to convert the battery cell temperature into the temperature of the surrounding environment of the battery through experiments and algorithms to achieve the current temperature collection in the first space.

It should be noted that, in the embodiment of the present invention, the temperature increase control device 121 is controlled by the control chip 21, and whether the first heat is generated by the heating device 120 is controlled by the temperature increase control device 121.

It should be noted that the temperature increase control device 121 is a switch that controls the heat device 120 to generate the first heat. As long as a structure in the form of a transfer switch that controls the first heat according to the current temperature of the first space can be realized.

Exemplarily, since the terminal 2 (for example, the smart terminal) operates, the control chip 20 of the terminal 2 generates a large amount of heat, which can be regarded as the first heat. Therefore, the heating device 120 can use a chip that flows through the heat (for example, The control chip 120) and the circulating water pipe or oil pipe of the filler 102 are realized. When the battery 20 is in a low temperature environment, the chip is heated by the function of the software module (control chip 21), and after the circulating water pipe or the oil pipe is heated on one side of the chip, the water or the oil will be the first heat according to the convective heat conduction of the fluid. It is transferred to the side of the filler 102 to achieve the purpose of raising the temperature of the environment around the battery 20 (the current temperature of the first space). When the current temperature of the first space reaches a certain temperature After that, the chip is stopped from heating. In order to avoid a higher ambient temperature (the current temperature of the first space), the heat pipe still transfers the first heat from the chip at the time of operation to the filler 102. Therefore, by installing a valve on the heat pipe, when the temperature of the environment around the battery 20 is high, the temperature rise control device 121 closes the valve, and at this time, the first heat is not conducted from the heat generating chip into the filler 102. The above valves can be controlled by a motor, the valves are normally open, and the valves can be closed when the motor is energized.

Alternatively, the structure of the temperature increase control device 121 may be various, and the description of the specific structure of the other temperature increase control device 121 will be made in the following embodiments.

Optionally, as shown in FIG. 9 , the temperature detecting circuit 111 includes: a Wheatstone bridge 1110, an analog-to-digital converter 1111 connected to the Wheatstone bridge 1110, and a first power source 1112. The analog-to-digital converter 1111 is connected to the control chip 21; the Wheatstone bridge 1110 is composed of the temperature sensor 110, the first resistor 11100, the second resistor 11101, and the third resistor 11102.

For example, the first resistor 11100, the second resistor 11101, and the third resistor 11102 each take 47 kilo ohms (kΩ), and the first power source 1112 can take 1.8 volts (V).

Optionally, in the embodiment of the present invention, the first analog quantity is converted into the first digital quantity by the analog-to-digital converter 1111.

Illustratively, a schematic structural view of a temperature sensor and a temperature detecting circuit as shown in FIG. As can be seen from FIG. 9, an RT (NTC thermistor) is a temperature sensor 110, and the NTC thermistor and R1 (first resistor 11100), R2 (second resistor 11101), and R3 (third resistor 11102) together form a Wythe. Power on bridge 1110. When R1, R2, and R3 select appropriate resistance values, the change in RT resistance (first analog quantity) can be converted into a suitable voltage change, and this voltage change is converted into a voltage digital quantity by the ADC analog-to-digital converter 1111 ( The first digital quantity is finally output to the control chip 21 by the digital quantity. Since the control chip 21 has a built-in thermistor voltage temperature comparison table, the temperature of the environment around the battery 20 corresponding to the voltage digital quantity, that is, the current temperature of the first space, can be obtained by the thermistor voltage and temperature comparison table.

Optionally, FIG. 10 is a schematic structural diagram of a heating device and a temperature increasing control device. The heating device 120 includes a second power source 1201 and a heating device 1200. The temperature increasing control device 121 includes: a pole tube 1210, and a fourth resistor 1211 connected to the first transistor 1210; the first transistor 1210 includes: a first base 12100, a first collector 12101, and a first emission Pole 12102.

The heating device 1200 is connected to the first collector 12101 and the second power source 1201, the first base 12100 is connected to the control chip 21, and one end of the fourth resistor 1211 is connected to the The first base 12100, the other end of the fourth resistor 1211 is grounded, and the first emitter 12102 is grounded.

Optionally, the heating device 1200 in the embodiment of the present invention may be a power resistor.

It should be noted that the heating device 1200 is disposed in the filler 102. When the temperature of the filler 102 is too low, the heating device 1200 generates the first heat, thereby increasing the temperature of the filler 102 (ie, the temperature of the environment surrounding the battery). ). When the heating device 1200 uses a power resistor, the power resistor converts the electrical energy into heat energy when it is energized.

Alternatively, any device that can generate a large amount of heat after being energized can be used as the heating device 1200, which is not limited in the embodiment of the present invention.

It should be noted that the temperature increase control device 121 controls whether or not the heating device 120 is energized by the control chip 21 according to the current temperature of the first space.

Optionally, the temperature increase control device 121 controls an output current of the control chip 21 according to a current temperature of the first space, and controls a pass of the first transistor 1210 by an output current of the control chip 21 And controlling whether the second power source 1201 energizes the heating device 1200 according to the on/off of the first tertiary tube, and when the current temperature in the first space is lower than a preset threshold, The control chip 21 controls the first transistor 1210 to be turned on, thereby triggering the second power source 1201 to energize the heating device 1200 to generate the first heat.

Optionally, as shown in FIG. 10, the heating device 1200 includes a power resistor Rp. When the temperature of the environment around the battery 20 is low (when the current temperature in the first space is lower than a preset threshold), the control chip 21 The output current is applied to the base of the NPN transistor 1210. The NPN transistor 1210 is then turned on, and a current flows through the power resistor 1200, thereby generating a certain first heat, thereby increasing the temperature of the filler 102, that is, improving the environment around the battery. Temperature (current temperature of the first space). When the temperature of the surrounding environment of the battery is high (when the current temperature in the first space is not lower than the preset threshold), the control chip 21 has no current output, the NPN transistor 1210 is disconnected, and there is no current on the Rp, so that no A heat.

Optionally, as shown in FIG. 11 , the temperature control device 1 further includes: a charge and discharge switch circuit 13 of the battery; and a charge and discharge switch circuit 13 of the battery connected to the control chip 21 and the battery 20 .

It should be noted that the charge and discharge switch circuit 13 of the battery is configured to turn on the charge and discharge of the battery when the current temperature of the first space acquired by the control chip 21 is higher than or equal to the preset threshold. A channel for charging and discharging the battery 20.

It should be noted that when the current temperature of the first space is lower than the preset threshold, the charge and discharge switch circuit 13 will turn off the charge and discharge channels of the battery, and prohibit charging and discharging of the battery 20.

Optionally, the preset threshold in the embodiment of the present invention may be a certain range set by the researcher or the user, and the preset threshold may be a threshold value that the battery 20 of the terminal 2 can work normally, and the specific value is the embodiment of the present invention. No restrictions.

Optionally, after the heating device 120 generates the first heat to increase the current temperature of the first space, the current temperature of the increased first space increases, but the temperature range that the battery 20 can withstand cannot be exceeded. The current temperature of the first space still cannot exceed the preset target temperature. Once the preset target temperature is exceeded, the temperature increasing control device 121 causes the first transistor 1210 to be turned off and not turned on to stop the heating device 120 from generating the first. The heat, that is, stops continuing to increase the current temperature of the first space.

The embodiment of the present invention provides a temperature control device, which is disposed in the terminal and is filled with a filler around the inner casing of the first space and the inner casing that surrounds the battery of the terminal and forms an external environment in which the battery 20 is located. a temperature sensor, the temperature sensor is disposed in the filler; a temperature detecting circuit connected to the temperature sensor, the temperature detecting circuit is connected to the control chip of the terminal; and a heating device, the heating device 120 is disposed at the filling And a temperature rise control device connected to the heating device, wherein the temperature increase control device is connected to the control chip. When the temperature control scheme is adopted by the above temperature control device, since the outer casing, the filler and the inner casing are disposed around the battery of the terminal, the ambient temperature of the battery can be maintained within an adapted range by the heating device and the temperature rise control device, thereby avoiding The ambient temperature of the battery is too low. Therefore, the temperature control device is used to control the ambient temperature of the battery, thereby improving the adaptability of the terminal to the environment and ensuring the normal use and safety of the terminal in a low temperature environment.

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 may employ hardware embodiments, software embodiments, or a combination of soft A form of embodiment of hardware 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.

One of ordinary skill in the art will appreciate that all or a portion of the above steps may be performed by a program to instruct related hardware, such as a processor, which may be stored in a computer readable storage medium, such as a read only memory, disk or optical disk. Wait. Alternatively, all or part of the steps of the above embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module/unit in the foregoing embodiment may be implemented in the form of hardware, for example, by implementing an integrated circuit to implement its corresponding function, or may be implemented in the form of a software function module, for example, executing a program in a storage and a memory by a processor. / instruction to achieve its corresponding function. The invention is not limited to any specific form of combination of hardware and software.

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 above technical solution improves the adaptability of the terminal to the environment, and ensures the normal use and security of the terminal in a low temperature environment.

Claims

A temperature control method comprising:

Obtaining the current temperature of the first space when the current preset time period arrives;

Controlling whether to generate a first heat according to a current temperature of the first space; generating the first heat when a current temperature in the first space is lower than a preset threshold;

Increasing a current temperature of the first space according to the first heat.
The method of claim 1 further comprising:

After the current temperature of the first space is increased according to the first heat, when the current temperature of the raised first space is greater than a preset target temperature, the first heat is stopped, and the next time is When the time period is reached, the next temperature control process begins.
The method of claim 1 or 2, further comprising:

Obtaining a temperature control start instruction before acquiring the current temperature of the first space when the current preset time period arrives;

The current temperature control flow is started according to the temperature control start command.
A temperature control device comprising:

Obtaining a unit, configured to acquire a current temperature of the first space when the current preset time period arrives;

a control unit, configured to control whether the first heat is generated according to the current temperature of the first space acquired by the acquiring unit;

a generating unit, configured to generate the first heat when the control unit controls that a current temperature in the first space is lower than a preset threshold;

And an increasing unit configured to increase a current temperature of the first space according to the first heat generated by the generating unit.
The apparatus according to claim 4, the temperature control device further comprising: a stop unit;

The stopping unit is configured to: after the increasing unit increases the current temperature of the first space according to the first heat, when a current temperature of the first space after the increasing unit is raised is greater than a preset target temperature Stop generating the first heat and arrive at the next preset time period, Start the next temperature control process.
A device according to claim 4 or 5,

The acquiring unit is further configured to: before the current preset time period arrives, acquire a temperature control start command before acquiring the current temperature of the first space; start the current temperature control process according to the temperature control start command.
A temperature control device is disposed in the terminal, including:

An inner casing surrounding the battery of the terminal, forming an inner space defining a first space in which the battery is located, and an outer casing filled with a filler between the inner casing;

a temperature sensor, the temperature sensor being disposed in the filler;

a temperature detecting circuit connected to the temperature sensor, wherein the temperature detecting circuit is connected to a control chip of the terminal;

a heating device, the heating device being disposed in the filler;

A temperature increase control device connected to the heating device, wherein the temperature increase control device is connected to the control chip.
The apparatus of claim 7, wherein said temperature detecting circuit comprises: a Wheatstone bridge, an analog to digital converter coupled to said Wheatstone bridge, and a first power source, said analog to digital converter and said Control chip connection; the Wheatstone bridge is composed of the temperature sensor, a first resistor, a second resistor, and a third resistor.
The apparatus according to claim 7 or 8, wherein said heating means comprises: a second power source and a heating means; said temperature raising control means comprising: a first transistor, and said first transistor a fourth resistor; the first transistor includes: a first base, a first collector, and a first emitter;

The heating device is respectively connected to the first collector and the second power source, the first base is connected to the control chip, and one end of the fourth resistor is connected to the first base, The other end of the fourth resistor is grounded, and the first emitter is grounded.
The apparatus according to claim 7, further comprising: a charge and discharge switch circuit of said battery; said charge and discharge switch circuit of said battery being connected to said control chip and said battery.