CN110112810A - A kind of mobile phone shell and charging method - Google Patents
A kind of mobile phone shell and charging method Download PDFInfo
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- CN110112810A CN110112810A CN201910472560.XA CN201910472560A CN110112810A CN 110112810 A CN110112810 A CN 110112810A CN 201910472560 A CN201910472560 A CN 201910472560A CN 110112810 A CN110112810 A CN 110112810A
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- mobile phone
- charging
- external interface
- battery
- current
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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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
- H02J7/0032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits disconnection of loads if battery is not under charge, e.g. in vehicle if engine is not running
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Telephone Function (AREA)
Abstract
A kind of mobile phone shell and charging method, are related to mobile phone power supply technique field.The embodiment of the present invention can be in conjunction with the actual use demand assignment charging current of user.The mobile phone shell includes: the first external interface, the second external interface, battery and control circuit；Wherein, the first external interface connects control circuit, and control circuit is also connected with the second external interface and battery；First external interface receives the charging current of external power supply input after connecting external power supply；Control circuit for connecting external power supply when the first external interface, and when the second external interface connection mobile phone, according to the practical charging current being able to bear of mobile phone in charging process, controls the charging current of mobile phone；And it is charged the battery using residual current.The present invention charges applied to mobile phone.
Description
This application claims in submission on January 18th, 2019 State Intellectual Property Office, application No. is 201910047190.5, Shens
Please entitled " a kind of electronic equipment and its charging method " Chinese patent application priority, entire contents by reference knot
It closes in this application.
Technical field
The present invention relates to power electronic equipment technical field more particularly to a kind of mobile phone shells and charging method.
Background technique
As the technology of mobile phone terminal develops and is widely used, user is higher and higher to the degree of dependence of mobile phone, uses frequency
Rate is also higher and higher.And since battery energy density never has big breakthrough, it is electricity using mobile power sources such as charger babies
Sub- equipment charge becomes a kind of common method for improving electronic equipment cruising ability.
When using the mobile power sources such as charger baby be when the mobile phone is charging, due in mobile power source charging current need to convert after
The charging to mobile phone can be achieved, cause charge efficiency slower and inconvenient for operation.Moreover, being easy to make when longer between when charging
At mobile phone charging heating problem, and the method for solving the heating problem is usually to pull out mobile power source, is brought to user poor
User experience.
Summary of the invention
The present invention provides a kind of mobile phone shell and charging method, and can charge electricity in conjunction with the actual use demand assignment of user
Stream.In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that
In a first aspect, the embodiment of the present invention provides a kind of mobile phone shell, which includes: the first external interface, outside second
Portion's interface, battery and control circuit；Wherein, the first external interface connects control circuit, and control circuit is also connected with outside second
Interface and battery；First external interface receives the charging current of external power supply input after connecting external power supply；Control electricity
Road, for connecting external power supply when the first external interface, and when the second external interface connection mobile phone, according to hand in charging process
The practical charging current being able to bear of machine, controls the charging current of mobile phone；And it is charged the battery using residual current；
Wherein, residual current includes: the electric current in the charging current of external power supply input other than the charging current for flowing to mobile phone.
Second aspect, the embodiment of the present invention provide a kind of charging method, the control provided applied to such as above-mentioned first aspect
Circuit, this method comprises: when the first external interface connects external power supply, and when the second external interface connection mobile phone, according to filling
The practical charging current being able to bear of mobile phone, controls the charging current of mobile phone in electric process；And utilize residual current
It charges the battery；Wherein, residual current include: external power supply input charging current in addition to flow to mobile phone charging current it
Outer electric current.
In mobile phone shell and charging method provided by the embodiment of the present invention, external power supply and hand are connected simultaneously in mobile phone shell
When machine, according to the practical charging current being able to bear of mobile phone in charging process, the charging current of mobile phone, and benefit are controlled
This mode to be charged with residual current to the battery of mobile phone shell.To reach when mobile phone shell and mobile phone pass through the same external electrical
When source is charged, the preferential quick charge for guaranteeing mobile phone.And when the rated current of external power supply is there are also having more than needed, then residue is utilized
Electric current charges to the battery of mobile phone shell.Therefore, mobile phone shell provided by the invention can realize the control to the charge function of mobile phone, and
And the charging current of mobile phone can be controlled, is avoided when the mobile phone is charging according to the practical charging current being able to bear of mobile phone
Between it is too long caused by heating problem, improve the usage experience of user.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described.
Fig. 1 is a kind of appearance diagram of mobile phone and mobile phone shell provided in an embodiment of the present invention；
Fig. 2 is a kind of one of structural schematic diagram of mobile phone shell provided in an embodiment of the present invention；
Fig. 3 is a kind of second structural representation of mobile phone shell provided in an embodiment of the present invention；
Fig. 4 is a kind of third structural representation of mobile phone shell provided in an embodiment of the present invention；
Fig. 5 is a kind of structural schematic diagram of mobile phone and mobile phone shell provided in an embodiment of the present invention；
Fig. 6 is the five of a kind of structural schematic diagram of mobile phone shell provided in an embodiment of the present invention；
Fig. 7 is a kind of workflow schematic diagram of mobile phone shell provided in an embodiment of the present invention；
Fig. 8 is a kind of flow diagram of charging method provided in an embodiment of the present invention.
Appended drawing reference:
10- mobile phone shell；20- mobile phone；The first external interface of 101-；The second external interface of 102-；103- control circuit；104-
Battery；1031- first protects circuit；1032- charging circuit；1033- single-chip microcontroller.
Specific embodiment
With reference to the accompanying drawing, the embodiment of the present invention is described.
Firstly, introducing inventive principle of the invention: as shown in Figure 1, the embodiment of the present invention provides a kind of mobile phone shell.I.e. with
When mobile phone 20 connects, the thimble contact interface of the equipment back side of the thimble contact interface and mobile phone 20 of the inner surface of the mobile phone shell 10
It is in contact, so as to charge to mobile phone 20.Mobile phone shell provided in an embodiment of the present invention can be with the even closer fitting of mobile phone, phase
Than the mobile power source of other shapes, the specific effect easy to carry, easy to use of mobile phone shell.
Specifically, in order to enable mobile phone shell 10 to be fixed with mobile phone 20, it usually needs be arranged in mobile phone shell 10 more
A retaining structure.These retaining structures may then stop the original USB interface of mobile phone 20.At this point, mobile phone 20 can not connect charging
Line can only be charged by the charging interface of mobile phone shell 10.At this point, being equivalent to through the same charger, while giving mobile phone
20 and mobile phone shell 10 charge, charge efficiency is lower.
Based on above-mentioned technical problem, expecting in the embodiment of the present invention ought be simultaneously to mobile phone shell and when the mobile phone is charging, usually use
Family can more wish fully charged to mobile phone as early as possible, with convenient to use.In view of this consideration, in the embodiment of the present invention, in mobile phone shell
10 connect and when mobile phone shell 10 is also connect with mobile phone 20 with external power supply, and the charging current of priority acccess control external power supply input is given
Mobile phone charges, to guarantee the charging rate of mobile phone.
Embodiment one:
Based on foregoing invention principle, the embodiment of the present invention provides a kind of control circuit, is applied in mobile phone shell 10.Wherein,
As shown in Fig. 2, the mobile phone shell 10 includes: the first external interface 101, the second external interface 102, control circuit 103 and battery
104。
Wherein, the first external interface 101 connects control circuit 103, and control circuit 103 is also connected with the second external interface 102
And battery 104；First external interface 101 receives the charging current of external power supply input after connecting external power supply.
Control circuit 103, for connecting external power supply when the first external interface 101, and the second external interface 102 connects
When mobile phone, according to the practical charging current being able to bear of mobile phone in charging process, the charging current of mobile phone is controlled；And
It is charged using residual current to battery 104；Wherein, residual current includes: in the charging current of external power supply input in addition to flow direction
Electric current except the charging current of mobile phone.
In the embodiment of the present invention, when mobile phone shell 10 connects external power supply and mobile phone simultaneously, external power supply input at this time
Charging current gives mobile phone shell 10 and mobile phone to charge simultaneously.Therefore, in the embodiment of the present invention, pass through detection mobile phone during the charging process
The charging current being actually able to bear controls the charging current of mobile phone.Illustratively, when external power supply is 5V/2A
When the power supply of specification, if the electricity of battery is lower in mobile phone at this time, mobile phone can receive relatively large size of current, example
Such as, the practical charging current being able to bear of mobile phone is 2A at this time.So just the charging current of control input handset is 2A.With setting about
The electricity of machine battery is higher and higher, mobile phone can received electric current it is also smaller and smaller, and then control input handset charging electricity
Stream accordingly becomes smaller.
In addition, in order to guarantee the power for making full use of external power supply can be provided, in the embodiment of the present invention, control circuit
103 are also used to during the charging process, using residual current, charge to the battery in mobile phone shell 10.To ensure that whole fill
Electrical efficiency.
In one implementation, as shown in figure 3, control circuit 103 specifically includes: the first protection circuit 1031, charging
Circuit 1032 and single-chip microcontroller 1033.Wherein:
The first end of first protection circuit 1031 connects the power pins of the first external interface 101, second end connection second
The power pins of external interface 102.The power pins of first end the first external interface 101 of connection of charging circuit 1032, second
End connection battery 104, third end connects single-chip microcontroller 1033.
Wherein, the first protection circuit, for connecting external power supply, and the second external interface in the first external interface 101
After 102 connection mobile phones, be connected logical between the power pins of the first external interface and the power pins of the second external interface 102
Road.
Single-chip microcontroller 1033, for the power supply in the power pins and the second external interface 102 that the first external interface 101 is connected
After access between pin, the charging current of mobile phone is detected.And according to the charging current of mobile phone, to charging circuit
1032 send control signal.
Charging circuit 1032, for according to predetermined manner, controlling the electric current to charge to battery 104 in response to controlling signal
Value.
Wherein, predetermined manner, comprising: the current value that control battery 104 charges is less than target difference.Wherein, target difference
Are as follows: the difference of the charging current value of load current value and mobile phone that external power supply can input.
Specifically, in the embodiment of the present invention, it is contemplated that in charging, mobile phone would generally automatically adjust the charging for flowing into mobile phone
The size of electric current.Therefore, in the embodiment of the present invention, outside is separately connected in the first external interface 101, the second external interface 102
After power supply and mobile phone, first turn on logical between the power pins of the first external interface and the power pins of the second external interface
Road starts to charge mobile phone, and detects to the charging current of mobile phone.Then, control charging circuit 1032 utilizes surplus
Remaining electric current charges to battery 104.It is preferentially charged the phone to realize, and can make full use of external power supply and be capable of providing
Power efficiency.
Specifically, in one implementation, it is contemplated that mobile phone needs to carry out charge type inspection at the beginning of connecting charger
It surveys and gradually configures charging current, therefore current fluctuation is larger at this time.In order to keep the charging current of the mobile phone detected more quasi-
Really.In the embodiment of the present invention, single-chip microcontroller 1033, specifically for outside the power pins and second that the first external interface 101 is connected
After access between the power pins of portion's interface 102, delay prefixed time interval is enough, and the charging current for starting to detect mobile phone is big
It is small.
In one implementation, it is contemplated that when only connecting mobile phone shell 10 with external power supply, and mobile phone shell 10 is not connected to
When mobile phone, if directly connecting the power pins of the first external interface 101 with the power pins of the second external interface 102, hang
The second empty external interface 102 can then keep electriferous state, so that there are security risks.Therefore, in the embodiment of the present invention:
First protection circuit, is also used to when the second external interface 102 does not connect mobile phone, keeps the first external interface
Access between 101 power pins and the power pins of the second external interface 102 disconnects.
Specifically, for the mobile phone shell 10 shown in Fig. 1.The second external interface of mobile phone shell 10 is figure in the embodiment of the present invention
Thimble contact interface 105 shown in 1.Wherein, the second external interface of mobile phone shell 10 includes the pin of ten thimble-types.Ejector pin contact
Point interface is defined as follows shown in table 1:
Table 1
Wherein, two VBUS pins are power pins, for charging to mobile phone output electric current.
It in one implementation, as shown in table 1, further include that USB_ID draws on the second external interface 102 of mobile phone shell 10
Foot.USB_ID pin has the function of OTG (On-The-Go), is able to detect that the access of mobile phone.
In turn, in the embodiment of the present invention, the first protection circuit 1031, specifically for the USB_ when the second external interface 102
ID pin detects interrupt signal, and detect the first external interface 101 connection external power supply after, be connected the first external interface
The power supply end feet of 101 power supply end feet and the second external interface 102.Wherein, after the second external interface 102 is connect with mobile phone,
USB_ID pin generates interrupt signal.
In another implementation, as shown in table 1, the second external interface of mobile phone shell 10 further includes EN pin.Wherein,
EN pin, for receiving the enable signal of mobile phone after the second external interface 102 connects mobile phone.
In turn, in the embodiment of the present invention, the first protection circuit 1031 draws specifically for the EN when the second external interface 102
Foot detects enable signal, and detect the first external interface 101 connection external power supply after, be connected the first external interface 101
Power pins and the second external interface 102 power pins between access.
Wherein, the first external interface 101 can be the style interfaces such as Mirco USB interface or Type-C interface.Second
External interface 102 can be the style interfaces such as thimble contact interface shown in FIG. 1, Mirco USB interface or Type-C interface.
Wherein, the method whether the first external interface 101 of detection connects external power supply, can refer to above-mentioned the second external interface of determination 102
The other modes that the method or the prior art for whether connecting mobile phone provide.In this regard, the present invention can be with no restrictions.
Specifically, as shown in figure 4, being a kind of structural schematic diagram of mobile phone shell provided in an embodiment of the present invention.Wherein, second
External interface 102 is using the structure of 10Pin thimble contact interface, and specifically wherein each pin definition can refer to shown in above-mentioned table 1.
Wherein, control circuit 103 is included in battery main circuit.Battery main circuit other than for realizing the function of control circuit 103,
It is also used to connect with pins such as EN pin, USB_ID pins to realize corresponding function.In addition, further including electricity in mobile phone shell 10
Meter chip is sent to mobile phone for detecting the information about power of battery in mobile phone shell 10, and by information about power, so that mobile phone should
Information about power is shown, or triggers other operations.In addition, further including detection circuit in mobile phone shell 10, it is used for and DET pin
Connection, to enable mobile phone to detect by DET pin the connection of mobile phone shell 10.Specifically, in one implementation, it should
Detection circuit includes a 0 Ω resistance, 0 Ω resistance one end ground connection, other end connection DET pin.In addition, in mobile phone shell 10,
Battery 104 specifically includes battery battery core and battery core protection circuit.Wherein, battery battery core protects circuit connection control by battery core
Circuit 103 and voltameter chip.
In one implementation, it is contemplated that at present in equipment interface, in order to realize the OTG function of USB_ID pin, just
It needs that the pin is made to keep high level state, is dragged down to connect level after external equipment, and then execute corresponding operating.And upper
It states in thimble contact interface shown in Fig. 4, since thimble is directly exposed to outside, when having water stain while be covered on these and draw
When on foot and GND pin, when the voltage between these pins and GND pin is greater than 1.2V (i.e. water power ionization voltage), these draw
The problem that short circuit even occurs in corrosion, oxidation will occur for foot.
Therefore, in order to avoid the above problem, in the embodiment of the present invention, as shown in figure 5, mobile phone shell 10, specifically includes: second
Resistance unit R2 and 3rd resistor unit R 3.It include detection end feet on single-chip microcontroller 1033.Single-chip microcontroller 1033 connects in detection end feet
After receiving low level interrupt signal, OTG function is opened.
Detect the USB_ID pin that end feet connects the second external interface 102；2 one end of second resistance unit R connects direct current
Source Vreg, other end connecting detection end feet；One end connecting detection end feet of 3rd resistor unit R 3, other end ground connection.
Wherein, in the case where the second external interface 102 does not connect mobile phone, the predeterminated voltage for detecting end feet is less than
The detection threshold of 1.2V, the detection end feet of single-chip microcontroller 1033 are less than predeterminated voltage.
In the embodiment of the present invention, by detecting the pre- of end feet in the case where the second external interface 102 does not connect mobile phone
If voltage is less than 1.2V, and the range less than predeterminated voltage is arranged in the detection threshold of the detection end feet of single-chip microcontroller 1033
It is interior.To guarantee mobile phone shell 10 in the case where no connection mobile phone 20, guarantee that the pin voltage of the second external interface 102 is lower than
1.2V, avoid the occurrence of pin corrosion, short circuit situations such as appearance.
In addition, as shown in figure 5, the external interface of mobile phone 20 includes USB_ID pin, the 4th resistance in the embodiment of the present invention
Unit R 4, the 5th resistance unit R5, the 6th resistance unit R6, the 7th resistance unit R7 and triode Q1.Wherein, the 4th resistance
One end of unit R 4 connects DC power supply (DC power supply is illustratively set as 1.8V in figure), and the other end connects the first pin；
First pin is also connected with the collector of triode unit Q1；The emitter of triode unit Q1 is connected to USB_ID pin；Three poles
The emitter of pipe unit Q1 also passes through the 5th resistance unit R5 ground connection.6th one end resistance unit R6 connects DC power supply, another
Hold the base stage of connecting triode unit Q1；The base stage of one end connecting triode unit Q1 of 7th resistance unit R7, another termination
Ground.
In the above embodiment of the present invention, a bleeder circuit is connected by the base stage in triode unit Q1, so as to
By adjusting the resistance of R2, R3, R4, R5, R6, R7, the external interface of mobile phone 20 is made not connect mobile phone shell 10 i.e. USB_
When ID pin floating, Q1 works in amplification region, so that the voltage at the first pin is in high level state.In access mobile phone
After shell 10, the voltage of Q1 emitter is pulled low, so that Q1 be made to be connected, the first pin becomes low level state, is triggered in corresponding
Disconnected operation.
Illustratively, in Fig. 5, Vreg=3.1V, R2=1M Ω, R3=510K Ω.In the case where being not connected to mobile phone,
The partial pressure for detecting end feet is 1V or so.The detection threshold of single-chip microcontroller 1033 is set as 0.8V.R5=100K Ω, R6=100K Ω, R7
=150K Ω.When mobile phone shell 10 is connect with mobile phone 20, since R3 is much larger than the resistance value of R5, end feet is detected in mobile phone shell 10
Voltage can be pulled low, to trigger corresponding operating.
In one implementation, as shown in fig. 6, control circuit 103, further includes first resistor unit R 1.
Wherein, in mobile phone shell 10, the grounding pin GND of the second external interface 102 is connected by first resistor unit R 1
The ground terminal of mobile phone shell.
Single-chip microcontroller 1033, specifically in the power pins and the second external interface 102 that the first external interface 101 is connected
After access between power pins, the voltage in first resistor unit R 1 is detected；And according to the electricity in first resistor unit R 1
Pressure generates control signal.
In the embodiment of the present invention, it is contemplated that when being charged to mobile phone, charging current connects outside mobile phone shell 10 second
The VBUS pin of mouth 102 flows into mobile phone, and the ground terminal of mobile phone shell 10 is returned from GND pin.Therefore, expect in the present invention, it can
With by between 10 ground terminal of GND pin and mobile phone shell connect the lesser resistance of resistance value, it is ohmically by detecting this
Voltage, it can be learnt that the charging current of mobile phone.
Specifically, in one implementation, first resistor unit R 1 is 10m Ω in the embodiment of the present invention.
Further, in a kind of implementation, for the ease of the control of the charging current to battery 104.The present invention is implemented
In example:
Charging circuit 1032 is specifically used in response to controlling signal, the selection target gear from multiple preset charged gears
Corresponding current value charges to battery 104.
Wherein, each preset charged gear respectively corresponds the charging current of a battery 104 in multiple preset charged gears
Value.Wherein, target gear are as follows: make the charging current value of mobile phone and the sum of the charging current value of battery 104, closest to external power supply
The gear for the load current value that can be inputted.
Illustratively, it is preset with 10 gears, the charging current of battery 104 is 0A when lowest gear, then every
One grade is set every 200mA, the charging current that one grade of highest is 2A.When mobile phone shell 10 outside the first external interface 101, second by connecing
After mouth 102 connects external power supplies and mobile phone, the power end of the first external interface 101 and the second external interface 102 is first turned on
Foot charges to mobile phone.
Originally, the charge power supply of mobile phone is larger, such as 2A electric current is fully allocated to hand by external power supply when just starting to charge
Machine is charged (in this example, it is contemplated that 5V/2A is the rechargeable standard of common quick charger, mobile phone at present, therefore this reality
Using 2A electric current as maximum value in example.Rechargeable standard can be set as needed in those skilled in the art when specific implementation), it distributes at this time
Charging current to battery 104 is then 0A.
Later as the voltage of battery of mobile phone increases, the charging current of mobile phone can slowly reduce.Then, single-chip microcontroller 1033 weeks
The charging current of phase property detection mobile phone then controls charging circuit when the charging current for detecting mobile phone is reduced to 1.8A at this time
1032 distribute to battery 104 with the charging current of 0.2A.And so on, until mobile phone is fully charged, disconnect the first protection circuit
Whole charging currents is distributed to battery 104 and charged by 1031 access, charging circuit 1032；Or first protection circuit 1031
It is held on, to continue the power load power supply into mobile phone, and is divided remaining whole charging currents by charging circuit 1032
Dispensing battery 104 charges.
Specifically, as shown in fig. 7, the workflow of mobile phone shell 10 is as follows in the embodiment of the present invention:
The first external interface 102 of S301, charger (i.e. above " external power supply ") access mobile phone shell 10.
S302, mobile phone shell 10 detect whether mobile phone accesses by the USB_ID pin of the second external interface 102.Work as USB_ID
When pin input low level interrupts (in such as examples detailed above, the detection end feet voltage of single-chip microcontroller 1033 is lower than 0.8V), continue S303
The step of；Otherwise the step of executing S304.
S303, the first protection circuit 1031 are connected.Then the charging current of mobile phone is detected.
Specifically, in view of mobile phone is after connecting charger, it is necessary first to carry out charge type detection.Therefore, Ke Yi
After first protection circuit 1031 is connected, after delay preset time (for example, delay 30s), the charging current for starting to detect mobile phone is big
It is small.
Specifically can through the foregoing embodiment in, detect mobile phone shell 10 the second external interface 102 in GND pin and ground connection
Resistive voltage between end, to determine the charging current of mobile phone.
The charging current of S304, configurating mobile shell 10 individually charge to the battery 104 of mobile phone shell 10.
S305, the charging current (for example, primary at interval of detection in 5 seconds) for being periodically detected mobile phone,
S306, the charging current according to mobile phone determine that suitable charging gear charges to battery 104.
In one implementation, it in the embodiment of the present invention, is charged, is specifically included to battery 104 using residual current:
According to the temperature of mobile phone shell, the size of current to charge to battery 104 is controlled.
In the embodiment of the present invention it is considered that with use environment, the difference in charging time, mobile phone shell temperature in charging
It will be different.And charge under the excessively high environment of temperature, it is understood that there may be influence mobile phone shell service life, use safe situation
Occur.Therefore, expect in the embodiment of the present invention, by detecting the temperature of mobile phone shell, and then the charging current for controlling battery 104 is big
It is small.To avoid in the case where temperature is excessively high, since the corresponding problem caused by charging current is excessive occurs.
Specifically, in the embodiment of the present invention, it can be in such a way that a threshold temperature be set, when the temperature of mobile phone shell 10
When higher than the threshold temperature, then charging current control is avoided into the generation of above-mentioned corresponding problem in certain threshold range.Into
And in the embodiment of the present invention, according to the temperature of mobile phone shell, the size of current to charge to battery 104 is controlled, is specifically included:
If the temperature of mobile phone shell 10 is greater than first threshold temperature, the current value of the charging of battery 104 is controlled less than first
It rations the power supply flow valuve.
When by according to the temperature of mobile phone shell 10, this method of the size of current of charging of control battery 104 is applied to such as figure
3, when in mobile phone shell shown in the figures such as Fig. 4, in the embodiment of the present invention:
Charging circuit 1032 is specifically used for charging according to predetermined manner, control to battery 104 in response to controlling signal
Current value.
Wherein, predetermined manner includes: and controls the current value that battery 104 charges to be less than target difference；If the temperature of mobile phone shell 10
Degree is greater than first threshold temperature, then the current value for controlling the charging of battery 104 is less than target difference and less than the first threshold current
Value；Wherein, target difference are as follows: the difference of the charging current value of load current value and mobile phone that external power supply can input.
Specifically, when charging circuit 1032 is used in response to controlling signal, the selection target from multiple preset charged gears
When the corresponding current value of gear charges to battery 104.Then target gear specifically includes: being less than the charging current value of battery 104
First threshold current value, and the sum of the charging current value of the charging current value of mobile phone and battery 104, closest to external power supply energy
The gear of the load current value enough inputted.
Specifically, controlling the size of current to charge to battery 104 according to the temperature of mobile phone shell 10, specifically including:
The voltage in mobile phone shell 10 on thermocouple is detected, according to the voltage on thermocouple, controls the electricity to charge to battery 104
Flow size；
And/or the voltage in detection mobile phone shell 10 on thermistor is controlled according to the voltage on thermistor to battery
The size of current of 104 chargings.
In mobile phone shell provided by the embodiment of the present invention, when mobile phone shell connects external power supply and mobile phone simultaneously, according to filling
The practical charging current being able to bear of mobile phone in electric process controls the charging current of mobile phone, and utilizes residual current
This mode to charge to the battery of mobile phone shell.To reach when mobile phone shell and mobile phone are charged by the same external power supply,
The preferential quick charge for guaranteeing mobile phone.And when the rated current of external power supply is there are also having more than needed, then using residual current to hand
The battery of casing charges.Therefore, mobile phone shell provided by the invention can realize the control to the charge function of mobile phone, and can basis
The practical charging current being able to bear of mobile phone, controls the charging current of mobile phone, too long between avoiding when the mobile phone is charging to lead
The heating problem of cause improves the usage experience of user.
Embodiment two:
The embodiment of the present invention also provides a kind of charging method, and this method is applied to control electricity provided by above-described embodiment one
Lu Zhong.As shown in figure 8, this method comprises:
S401, when the first external interface 101 connect external power supply, and the second external interface 102 connection mobile phone when, according to
The practical charging current being able to bear of mobile phone, controls the charging current of mobile phone in charging process.
Specifically, in one implementation, S401 is specifically included:
External power supply is connected in the first external interface 101, and after the second external interface 102 connection mobile phone, conducting first
Access between the power pins of external interface 101 and the power pins of the second external interface.
S402, it is charged using residual current to battery 104.
Wherein, residual current include: external power supply input charging current in other than the charging current for flowing to mobile phone
Electric current.
Optionally, S402 is specifically included:
S4021, be connected the first external interface 101 power pins and the second external interface 102 power pins between
Access after, detect the charging current of mobile phone.
Specifically, S4021 is specifically included: in the power pins and the second external interface 102 that the first external interface 101 is connected
Power pins between access after, detect first resistor R1 unit on voltage.
Wherein, the grounding pin of the second external interface 102 connects the ground terminal of mobile phone shell 10 by first resistor unit R 1.
S4022 and charging current according to mobile phone control the electric current to charge to battery 104 according to predetermined manner
Value.
Wherein, predetermined manner includes: and controls the current value that battery 104 charges to be less than target difference.Wherein, target difference
Are as follows: the difference of the charging current value of load current value and mobile phone that external power supply can input.
In one implementation, S4022 is specifically included: according to the charging current of mobile phone, from multiple preset chargeds
The corresponding current value of selection target gear in gear charges to battery 104.
Each preset charged gear respectively corresponds the charging current value of a battery 104 in multiple preset charged gears；Mesh
Mark gear are as follows: make the charging current value of mobile phone and the sum of the charging current value of battery 104, can input closest to external power supply
The gear of load current value.
Optionally, S402 is specific further include: according to the temperature of mobile phone shell 10, controls the size of current to charge to battery 104.
Specifically, the current value for controlling the charging of battery 104 is less than if the temperature of mobile phone shell 10 is greater than first threshold temperature
First threshold current value.
In one implementation, it is controlled according to predetermined manner in the current value to charge to battery 104, predetermined manner is specific
Include:
It controls the current value that battery 104 charges and is less than target difference；If the temperature of mobile phone shell 10 is greater than first threshold temperature,
The current value for then controlling the charging of battery 104 is less than target difference and less than the first threshold current value；Wherein, target difference are as follows:
The difference of the charging current value of load current value and mobile phone that external power supply can input.
Optionally, according to the temperature of mobile phone shell 10, the size of current to charge to battery 104 is controlled, is specifically included:
The electric current in mobile phone shell 10 on thermocouple is detected, according to the electric current on thermocouple, controls the electricity to charge to battery 104
Flow size；
And/or the electric current in detection mobile phone shell 10 on thermistor is controlled according to the electric current on thermistor to battery
The size of current of 104 chargings.
Embodiment three:
The embodiment of the present invention also provides a kind of mobile phone shell, as shown in Fig. 2, including connecing outside the first external interface 101, second
Mouth 102, battery 104 and such as control circuit 103 provided by the above embodiment.
Charging method provided by the embodiment of the present invention, principle, specific implementation and the effect of generation may refer to
The corresponding description in embodiment one is stated, overlaps will not be repeated.
In the above-described embodiments, can come wholly or partly by software, hardware, firmware or any combination thereof real
It is existing.When being realized using software program, can entirely or partly realize in the form of a computer program product.The computer
Program product includes one or more computer instructions.On computers load and execute computer program instructions when, all or
It partly generates according to process or function described in the embodiment of the present invention.The computer can be general purpose computer, dedicated meter
Calculation machine, computer network or other programmable devices.The computer instruction can store in computer readable storage medium
In, or from a computer readable storage medium to the transmission of another computer readable storage medium, for example, the computer
Instruction can pass through wired (such as coaxial cable, optical fiber, number from a web-site, computer, server or data center
Word user line (Digital Subscriber Line, DSL)) or wireless (such as infrared, wireless, microwave etc.) mode to another
A web-site, computer, server or data center are transmitted.The computer readable storage medium can be computer
Any usable medium that can be accessed either includes the numbers such as one or more server, data centers that medium can be used to integrate
According to storage equipment.The usable medium can be magnetic medium (for example, floppy disk, hard disk, tape), optical medium (for example, DVD),
Or semiconductor medium (such as solid state hard disk (Solid State Disk, SSD)) etc..
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (9)
1. a kind of mobile phone shell, which is characterized in that the mobile phone shell includes: the first external interface, the second external interface, battery
And control circuit；Wherein, first external interface connects the control circuit, and the control circuit is also connected with described second
External interface and the battery；First external interface receives the external power supply input after connecting external power supply
Charging current；
The control circuit, for connecting the external power supply, and second external interface when first external interface
When connecting the mobile phone, the practical charging current being able to bear of the mobile phone according to charging process controls the mobile phone
Charging current；And it is charged using residual current to the battery；Wherein, the residual current includes: the external electrical
Electric current in the charging current of source input other than flowing to the charging current of the mobile phone.
2. mobile phone shell according to claim 1, which is characterized in that the control circuit specifically includes: the first protection circuit,
Single-chip microcontroller and charging circuit；Wherein:
The first end of the first protection circuit connects the power pins of first external interface, second end connection described second
The power pins of external interface；The first end of the charging circuit connects the power pins of first external interface, second end
The battery is connected, third end connects the single-chip microcontroller；
The first protection circuit, for connecting the external power supply in first external interface, and outside described second
After interface connects the mobile phone, the power pins of first external interface and the power pins of second external interface are connected
Between access；
The single-chip microcontroller, for drawing in the power supply of power pins and second external interface that first external interface is connected
After access between foot, the charging current of the mobile phone is detected；And according to the charging current of the mobile phone, to institute
It states charging circuit and sends control signal；
The charging circuit, for controlling the electric current to charge to the battery according to predetermined manner in response to the control signal
Value；Wherein, the predetermined manner includes: that the current value of the control battery charging is less than target difference；Wherein, the goal discrepancy
Value are as follows: the difference of the charging current value of load current value and the mobile phone that the external power supply can input.
3. mobile phone shell according to claim 2, which is characterized in that the control circuit, further includes: first resistor unit；
Wherein, the grounding pin of second external interface connects the ground connection of the mobile phone shell by the first resistor unit
End；
The single-chip microcontroller, specifically for the electricity in the power pins and second external interface that first external interface is connected
After access between source pin, the voltage on the first resistor unit is detected；And according on the first resistor unit
Voltage generates the control signal.
4. mobile phone shell according to claim 2, which is characterized in that
The charging circuit is specifically used in response to the control signal, the selection target gear from multiple preset charged gears
Corresponding current value charges to the battery；
Wherein, each preset charged gear respectively corresponds the charging current of a battery in the multiple preset charged gear
Value；The target gear are as follows: make the charging current value of the mobile phone and the sum of the charging current value of the battery, described in
The gear for the load current value that external power supply can input.
5. any one of -4 mobile phone shell according to claim 1, which is characterized in that described to be filled using residual current to the battery
Electricity specifically includes:
According to the temperature of the mobile phone shell, the size of current to charge to the battery is controlled.
6. mobile phone shell according to claim 5, which is characterized in that the temperature according to the mobile phone shell, control is to described
The size of current of battery charging, specifically includes:
If the temperature of the mobile phone shell is greater than first threshold temperature, the current value of the battery charging is controlled less than the first thresholding
Current value.
7. mobile phone shell according to claim 6, which is characterized in that the control circuit specifically includes: the first protection circuit,
Single-chip microcontroller and charging circuit；Wherein:
The first end of the first protection circuit connects the power pins of first external interface, the described in the second end connection
The power pins of two external interfaces；The first end of the charging circuit connects the power pins of first external interface, and second
End connects the battery, and third end connects the single-chip microcontroller；
The first protection circuit, for connecting the external power supply in first external interface, and outside described second
After interface connects the mobile phone, the power pins of first external interface and the power pins of second external interface are connected
Between access；
The single-chip microcontroller, for drawing in the power supply of power pins and second external interface that first external interface is connected
After access between foot, the charging current of the mobile phone is detected, and detects the temperature of the mobile phone shell；And according to described
The temperature of the charging current of mobile phone and the mobile phone shell, Xiang Suoshu charging circuit send control signal；
The charging circuit, for controlling the electric current to charge to the battery according to predetermined manner in response to the control signal
Value；Wherein, the predetermined manner includes: that the current value of the control battery charging is less than target difference；If the mobile phone shell
Temperature is greater than first threshold temperature, then the current value for controlling the battery charging is less than target difference and is less than described first
It rations the power supply flow valuve；Wherein, the target difference are as follows: the charging of load current value and the mobile phone that the external power supply can input
The difference of current value.
8. mobile phone shell according to claim 5, which is characterized in that the temperature according to the mobile phone shell, control is to described
The size of current of battery charging, specifically includes:
The voltage in the mobile phone shell on thermocouple is detected, according to the voltage on the thermocouple, control is charged to the battery
Size of current；
And/or the voltage detected in the mobile phone shell on thermistor is controlled according to the voltage on the thermistor to institute
State the size of current of battery charging.
9. a kind of charging method is applied to the mobile phone shell as described in the claims any one of 1-8, which is characterized in that the side
Method includes:
When first external interface connects the external power supply, and second external interface connects the mobile phone, root
According to the practical charging current being able to bear of mobile phone described in charging process, the charging current of the mobile phone is controlled；And
It is charged using residual current to the battery；Wherein, the residual current includes: in the charging current of the external power supply input
Electric current other than flowing to the charging current of the mobile phone.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910047190.5A CN109802457A (en) | 2019-01-18 | 2019-01-18 | A kind of electronic equipment and its charging method |
| CN2019100471905 | 2019-01-18 |
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| CN110112810A true CN110112810A (en) | 2019-08-09 |
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| CN201910047190.5A Pending CN109802457A (en) | 2019-01-18 | 2019-01-18 | A kind of electronic equipment and its charging method |
| CN201910473448.8A Active CN110098652B (en) | 2019-01-18 | 2019-05-31 | Mobile phone, mobile phone main body device and mobile phone endurance device |
| CN201910472560.XA Pending CN110112810A (en) | 2019-01-18 | 2019-05-31 | A kind of mobile phone shell and charging method |
| CN201911277043.3A Active CN111463842B (en) | 2019-01-18 | 2019-12-12 | Electronic equipment and communication method thereof |
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| CN201910047190.5A Pending CN109802457A (en) | 2019-01-18 | 2019-01-18 | A kind of electronic equipment and its charging method |
| CN201910473448.8A Active CN110098652B (en) | 2019-01-18 | 2019-05-31 | Mobile phone, mobile phone main body device and mobile phone endurance device |
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| CN201911277043.3A Active CN111463842B (en) | 2019-01-18 | 2019-12-12 | Electronic equipment and communication method thereof |
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| CN113113950A (en) * | 2021-04-15 | 2021-07-13 | 苏州博众机器人有限公司 | Battery charging control method, device and system |
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| CN111884303B (en) * | 2020-08-19 | 2022-09-30 | 深圳市爱都科技有限公司 | Charging control circuit, charging control method and electronic device |
| CN112234683A (en) * | 2020-11-10 | 2021-01-15 | 支付宝(杭州)信息技术有限公司 | Charging control method of electronic equipment and electronic equipment |
| WO2022188048A1 (en) * | 2021-03-10 | 2022-09-15 | 华为技术有限公司 | Charge/discharge control device |
| CN114389334B (en) * | 2021-12-20 | 2024-05-31 | 深圳市理德铭科技股份有限公司 | Notebook charger for prolonging service life of battery |
| CN114421446A (en) * | 2021-12-28 | 2022-04-29 | 歌尔科技有限公司 | Outdoor equipment power supply control method, power supply control system and outdoor equipment |
| CN116054306B (en) * | 2022-07-20 | 2023-12-12 | 荣耀终端有限公司 | Power supply control method and electronic equipment |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110098652A (en) | 2019-08-06 |
| CN110098652B (en) | 2021-05-07 |
| CN111463842A (en) | 2020-07-28 |
| CN109802457A (en) | 2019-05-24 |
| CN111463842B (en) | 2022-01-07 |
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Application publication date: 20190809 |