CN106059011B - A kind of mobile terminal - Google Patents
A kind of mobile terminal Download PDFInfo
- Publication number
- CN106059011B CN106059011B CN201610617371.3A CN201610617371A CN106059011B CN 106059011 B CN106059011 B CN 106059011B CN 201610617371 A CN201610617371 A CN 201610617371A CN 106059011 B CN106059011 B CN 106059011B
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- Prior art keywords
- battery
- receiving coil
- mobile terminal
- switch
- electrically connected
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/443—Methods for charging or discharging in response to temperature
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The embodiment provides a kind of mobile terminals, comprising: receiving coil is set to the surface of the battery of mobile terminal;Heat generation circuit, one end are electrically connected with the first end of receiving coil, and the other end is electrically connected with the second end of receiving coil;Charging circuit, the input terminal of charging circuit are electrically connected with the first end of receiving coil, and the output end of charging circuit is electrically connected with the anode of battery, and the cathode of battery is electrically connected with the second end of receiving coil;Central processor CPU, CPU are connect with the second switch in the first switch and charging circuit in heat generation circuit respectively;Wherein, when CPU detects that mobile terminal is located on wireless charging pedestal and the temperature of battery is less than preset value, receiving coil generates heat, and by the heat transfer of generation to battery;When CPU detects that mobile terminal is located on wireless charging pedestal and the temperature of battery is greater than or equal to preset value, charge to battery.The embodiment of the present invention can be such that mobile terminal charges normal in low temperature environment.
Description
Technical field
The present invention relates to electronic technology field, in particular to a kind of mobile terminal.
Background technique
With the development of technology, the mode that mobile terminal carries out wireless charging receives people's with the characteristics of its convenience
It welcomes.But since most of mobile terminal uses lithium battery, in the case where environment temperature is too low, electrolyte flow in lithium battery
Property decline, lithium ion retard motion, when charging, be easy to cause analysis lithium, reduces battery capacity and service life, or even causes inside battery
Short circuit causes dangerous.So these are endangered in order to prevent, mobile terminal generally can be in too low (i.e. environment temperature < 0 of environment temperature
DEG C) when, disable charge function.
Since there are low temperature charge protections for mobile terminal, thus will appear at low temperatures mobile terminal electricity exhaust but
It can not charge since environment temperature is too low again, influence the normal use of user.
Summary of the invention
The embodiment of the present invention is designed to provide a kind of mobile terminal, it is intended to solve mobile terminal nothing in low temperature environment
The problem of method charges.
In order to achieve the above object, the embodiment provides a kind of mobile terminals, comprising:
Receiving coil, receiving coil are set to the surface of the battery of mobile terminal;
Heat generation circuit, one end of heat generation circuit are electrically connected with the first end of receiving coil, the other end and reception
The second end of coil is electrically connected;
Charging circuit, the input terminal of charging circuit are electrically connected with the first end of receiving coil, the output end of charging circuit with
The anode electrical connection of battery, the cathode of battery are electrically connected with the second end of receiving coil;
Central processor CPU, CPU respectively with the second switch in the first switch and charging circuit in heat generation circuit
Connection;
Wherein, when CPU detects that mobile terminal is located on wireless charging pedestal and the temperature of battery is less than preset value,
CPU exports first control signal to second switch, and the first circuit for forming receiving coil, battery and charging circuit is in disconnection shape
State, and second control signal is exported to first switch, the second servo loop for forming receiving coil and heat generation circuit is in conducting
State, receiving coil generate heat by flowing through the electric current of second servo loop, and by the heat transfer of generation to battery;
When CPU detects that mobile terminal is located on wireless charging pedestal and the temperature of battery is greater than or equal to preset value,
CPU controls signal to first switch output third, makes second servo loop in off-state, and controls letter to second switch output the 4th
Number, make the first circuit on state, flows through the current versus cell charging in the first circuit.
Above scheme of the invention is include at least the following beneficial effects:
In an embodiment of the present invention, when CPU detects that mobile terminal is located on wireless charging pedestal and the temperature of battery
When less than preset value, first control signal is exported to second switch by CPU, makes the first circuit in off-state, while to the
One switch output second control signal, makes second servo loop on state, and receiving coil is produced by flowing through the electric current of second servo loop
Heat amount, and so that the temperature of battery is reached preset value, CPU detects mobile terminal at this time to battery the heat transfer of generation
On wireless charging pedestal and the temperature of battery is greater than or equal to preset value, exports third control to first switch by CPU
Signal makes second servo loop in off-state, while to the 4th control signal of second switch output, making the first circuit in conducting shape
State, and the charging of the current versus cell in the first circuit is flowed through, to reach what mobile terminal can charge normal in low temperature environment
Effect.
Detailed description of the invention
Fig. 1 is one of the structural schematic diagram of mobile terminal in the embodiment of the present invention;
Fig. 2 is the second structural representation of mobile terminal in the embodiment of the present invention;
Fig. 3 is the third structural representation of mobile terminal in the embodiment of the present invention;
Fig. 4 is four of the structural schematic diagram of mobile terminal in the embodiment of the present invention;
Fig. 5 is five of the structural schematic diagram of mobile terminal in the embodiment of the present invention;
Fig. 6 is six of the structural schematic diagram of mobile terminal in the embodiment of the present invention;
Fig. 7 is seven of the structural schematic diagram of mobile terminal in the embodiment of the present invention;
Fig. 8 is eight of the structural schematic diagram of mobile terminal in the embodiment of the present invention.
Description of symbols:
1, receiving coil;2, heat generation circuit;201, first switch;202, protective module;3, charging circuit;301,
Two switches;302, AC-DC conventer;303, Charge Management branch;304, charge monitoring branch;4, battery;5, emission lines
Circle;6,CPU;7, mobile terminal.
Specific embodiment
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
It is fully disclosed to those skilled in the art.
As shown in Figure 1, the embodiment provides a kind of mobile terminal, the mobile terminal 7 include: receiving coil 1,
Heat generation circuit 2, charging circuit 3 and central processing unit (CPU, Central ProcessingUnit).Wherein, receiving coil
1 is set to the surface of the battery 4 of mobile terminal 7;One end of heat generation circuit 2 is electrically connected with the first end of receiving coil 1, separately
One end is electrically connected with the second end of receiving coil 1;The input terminal of charging circuit 3 is electrically connected with the first end of receiving coil 1, charging
The output end of circuit 3 is electrically connected with the anode of battery 4, and the cathode of battery 4 is electrically connected with the second end of receiving coil 1;CPU6 points
It is not connect with the second switch 301 in the first switch 201 and charging circuit 3 in heat generation circuit 2.
Wherein, detect that mobile terminal 7 is located on wireless charging pedestal and the temperature of battery 4 is less than preset value in CPU6
When, CPU6 exports first control signal to second switch 301, makes first time that receiving coil 1, battery 4 and charging circuit 3 are formed
Road is in off-state, and exports second control signal to first switch 201, forms receiving coil 1 and heat generation circuit 2
Second servo loop is on state, and receiving coil 1 generates heat by flowing through the electric current of second servo loop, and by the heat transfer of generation
To battery 4;And detect that mobile terminal 7 is located on wireless charging pedestal and the temperature of battery 4 is more than or equal to default in CPU6
When value, CPU6 exports third to first switch 201 and controls signal, and making second servo loop is in off-state, and defeated to second switch 301
4th control signal out, makes the first circuit on state, and the current versus cell 4 flowed through in the first circuit charges.Wherein, at this
In the embodiment of invention, the specific value of above-mentioned preset value is not limited, can rule of thumb be set by engineer.
Wherein, in an embodiment of the present invention, above-mentioned charging circuit 3 is other than including above-mentioned second switch 301, also
It include: AC to DC (AC-DC) converter, Charge Management branch 303 and charge monitoring branch 304, second switch 301
In Charge Management branch 303.
Wherein, the input terminal of AC-DC conventer 302 is electrically connected with the first end of receiving coil 1, AC to DC
The output end of converter 302 is electrically connected with the input terminal of Charge Management branch 303, the output end and electricity of Charge Management branch 303
Lotus monitors the input terminal electrical connection of branch 304, and the output end of charge monitoring branch 304 is electrically connected with the anode of battery 4.Wherein,
AC-DC conventer 302, which is mainly used for the alternating current that receiving coil 1 receives being converted to direct current, charges to battery 4,
Charge Management branch 303 be mainly used for controlling charge function open or close, the parameters such as charging current, charging voltage, charge prison
It surveys branch 304 and is mainly used for the quantity of electric charge that monitoring flowed into/flowed out battery 4.It should be noted that for wireless charging can be carried out
For mobile terminal 7, it is provided with receiving coil 1, AC-DC conventer 302, Charge Management branch 303 and charge prison
Survey branch 304.
Wherein, in an embodiment of the present invention, there are two types of concrete implementation modes for above-mentioned heat generation circuit 2.
In the first implementation, as shown in Fig. 2, heat generation circuit 2 in addition to include above-mentioned first switch 201 it
It outside, further include a protective module 202.Wherein, the of the first end and protective module 202 of first switch 201 and receiving coil 1
One end electrical connection, the second end of protective module 202 are electrically connected with the second end of receiving coil 1.
Wherein, detect that mobile terminal 7 is located on wireless charging pedestal and the temperature of battery 4 is less than preset value in CPU6
When, CPU6 exports second control signal to first switch 201, makes receiving coil 1, first switch 201 and the formation of protective module 202
Second servo loop be on state, receiving coil 1 by receive wireless charging pedestal on transmitting coil 5 export electric current (need
It is noted that mobile terminal 7 can request the transmitting coil 5 on wireless charging pedestal to export suitable electricity by communication protocol
Stream), make to generate electric current in second servo loop, and then make receiving coil 1 generate heat by flowing through the electric current of second servo loop, and will produce
Raw heat transfer heats battery 4 to battery 4.Wherein, transmitting coil 5 outputs current to receiving coil 1 and second time
The flow direction of electric current is as indicated by the arrows in fig. 3 in road.
And detect that mobile terminal 7 is located on wireless charging pedestal and the temperature of battery 4 is more than or equal to default in CPU6
When value, CPU6 exports third to first switch 201 and controls signal, makes 202 shape of receiving coil 1, first switch 201 and protective module
At second servo loop be in off-state.At this point, the first circuit is on state, the electric current for flowing through the first circuit can fill battery 4
Electricity.Wherein, transmitting coil 5 outputs current to the flow direction of electric current in receiving coil 1 and the first circuit such as the arrow institute in Fig. 4
Show.
In the second implementation, as shown in figure 5, heat generation circuit 2 is in addition to including above-mentioned 201 He of first switch
It further include the battery 4 of mobile terminal 7 except protective module 202, and the anode and the second end of the protective module 202 of battery 4
Electrical connection.
Wherein, detect that mobile terminal 7 is located on wireless charging pedestal and the temperature of battery 4 is less than preset value in CPU6
When, CPU6 exports second control signal to first switch 201, makes receiving coil 1, first switch 201, protective module 202 and electricity
The second servo loop that pond 4 is formed is on state, so that second servo loop is generated electric current by the electric current in battery 4, and then makes to receive line
Circle 1 generates heat by flowing through the electric current of second servo loop, and the heat transfer of generation heats battery 4 to battery 4.Wherein,
The flow direction of electric current is as indicated by the arrows in fig. 6 in second servo loop.
And detect that mobile terminal 7 is located on wireless charging pedestal and the temperature of battery 4 is more than or equal to default in CPU6
When value, CPU6 exports third to first switch 201 and controls signal, makes receiving coil 1, first switch 201,202 and of protective module
The second servo loop that battery 4 is formed is in off-state.At this point, the first circuit is on state, the electric current for flowing through the first circuit can be right
Battery 4 charges.Transmitting coil 5 outputs current to the flow direction such as the arrow in Fig. 7 of electric current in receiving coil 1 and the first circuit
It is shown.
Wherein, either the first implementation or second of implementation, the protective module in heat generation circuit 2
202 can be a resistance, and first switch 201 can be relay switch or semiconductor switch.Wherein, protective module
202 are mainly responsible for when second servo loop is on state, and limitation flows through the electric current of receiving coil 1, protects receiving coil 1.
Wherein, in an embodiment of the present invention, as shown in figure 8, above-mentioned receiving coil 1 can be set to by way of fitting
The surface of 7 battery 4 of mobile terminal.It is understood that in an embodiment of the present invention, not limiting receiving coil 1 and being set to
The concrete mode on the surface of 7 battery 4 of mobile terminal.Certainly to meet wireless charging requirement, the area of the receiving coil 1 should be enough
Greatly.
It can be seen that when CPU6 detects that mobile terminal 7 is located on wireless charging pedestal and the temperature of battery 4 is less than in advance
If when value, exporting first control signal to second switch 301 by CPU6, making the first circuit in off-state, while to first
Switch 201 exports second control signal, makes second servo loop on state, and receiving coil 1 is by flowing through the electric current of second servo loop
Heat is generated, and so that the temperature of battery 4 is reached preset value, CPU6 detects movement at this time to battery 4 heat transfer of generation
Terminal 7 is located on wireless charging pedestal and the temperature of battery 4 is greater than or equal to preset value, defeated to first switch 201 by CPU6
Third controls signal out, makes second servo loop in off-state, while to the 4th control signal of the output of second switch 301, making first
Circuit is on state, and flows through the charging of the current versus cell 4 in the first circuit, so that reaching mobile terminal 7 can be in low temperature ring
It is charged normal in border, promotes the effect of user experience.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (6)
1. a kind of mobile terminal characterized by comprising
Receiving coil, the receiving coil are set to the surface of the battery of mobile terminal;
One end of heat generation circuit, the heat generation circuit is electrically connected with the first end of the receiving coil, the other end with
The second end of the receiving coil is electrically connected;
Charging circuit, the input terminal of the charging circuit are electrically connected with the first end of the receiving coil, the charging circuit
Output end is electrically connected with the anode of the battery, and the cathode of the battery is electrically connected with the second end of the receiving coil;
Central processor CPU, the CPU is respectively and in the first switch and the charging circuit in the heat generation circuit
Second switch connection;
Wherein, the heat generation circuit further include: protective module, the first end of the first switch and the receiving coil with
And the first end electrical connection of the protective module, the second end of the protective module and the second end of the receiving coil are electrically connected
It connects;
Wherein, detect that the mobile terminal is located on wireless charging pedestal and the temperature of the battery is less than in advance in the CPU
If the CPU exports first control signal to the second switch when value, makes the receiving coil, the battery and described fill
The first circuit that circuit is formed is in off-state, and exports second control signal to the first switch, makes the reception line
The second servo loop that circle, the first switch and the protective module are formed is on state, and the receiving coil is by receiving institute
The electric current for stating the transmitting coil output on wireless charging pedestal makes to generate electric current in the second servo loop, and the receiving coil passes through
The electric current for flowing through the second servo loop generates heat, and gives the heat transfer of generation to the battery;
Detect that the mobile terminal is located on wireless charging pedestal and the temperature of the battery is greater than or equal in the CPU
When the preset value, the CPU controls signal to first switch output third, opens the receiving coil, described first
It closes and the second servo loop of protective module formation is in off-state, and to the 4th control signal of second switch output, make
First circuit is on state, and the electric current flowed through in first circuit charges to the battery.
2. mobile terminal as described in claim 1, which is characterized in that the heat generation circuit further include: the battery, institute
The anode for stating battery is electrically connected with the second end of the protective module,
Wherein, detect that the mobile terminal is located on wireless charging pedestal and the temperature of the battery is less than in advance in the CPU
If the CPU exports second control signal to the first switch when value, make the receiving coil, first switch, described
The second servo loop that protective module and the battery are formed is on state, makes the second servo loop by the electric current in the battery
Generate electric current;
Detect that the mobile terminal is located on wireless charging pedestal and the temperature of the battery is greater than or equal in the CPU
When the preset value, the CPU controls signal to first switch output third, opens the receiving coil, described first
The second servo loop that pass, the protective module and the battery are formed is in off-state.
3. mobile terminal as claimed in claim 1 or 2, which is characterized in that the protective module is a resistance.
4. mobile terminal as described in claim 1, which is characterized in that the charging circuit further include:
AC-DC conventer, Charge Management branch and charge monitoring branch, the second switch are located at the charging valve
It manages in branch,
Wherein, the input terminal of the AC-DC conventer is electrically connected with the first end of the receiving coil, and the exchange becomes
The output end of direct current transducer is electrically connected with the input terminal of the Charge Management branch, the output end of the Charge Management branch with
The input terminal of the charge monitoring branch is electrically connected, and the anode of the output end and the battery of the charge monitoring branch is electrically connected
It connects.
5. mobile terminal as described in claim 1, which is characterized in that the first switch is that relay switch or semiconductor are opened
It closes.
6. mobile terminal as described in claim 1, which is characterized in that the receiving coil is set to institute by way of fitting
State the surface of battery of mobile terminal.
Priority Applications (1)
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CN201610617371.3A CN106059011B (en) | 2016-07-29 | 2016-07-29 | A kind of mobile terminal |
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CN201610617371.3A CN106059011B (en) | 2016-07-29 | 2016-07-29 | A kind of mobile terminal |
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CN106059011B true CN106059011B (en) | 2019-04-12 |
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Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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KR102374821B1 (en) | 2017-03-10 | 2022-03-17 | 삼성전자주식회사 | Temperture based battery charging method and apparatus thereof |
CN110401750B (en) * | 2019-07-31 | 2021-02-23 | 维沃移动通信有限公司 | Temperature regulation module and electronic equipment |
CN110459837A (en) * | 2019-08-09 | 2019-11-15 | 华为技术有限公司 | Electronic equipment and battery heating means |
CN113937848A (en) * | 2021-09-27 | 2022-01-14 | 东集技术股份有限公司 | Battery charging control device and battery charging control method |
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CN102005624A (en) * | 2009-09-02 | 2011-04-06 | 罗伯特.博世有限公司 | Method for heating a rechargeable battery, charger, and accessory element |
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