CN107634551A - Battery charger, method and terminal - Google Patents
Battery charger, method and terminal Download PDFInfo
- Publication number
- CN107634551A CN107634551A CN201610565618.1A CN201610565618A CN107634551A CN 107634551 A CN107634551 A CN 107634551A CN 201610565618 A CN201610565618 A CN 201610565618A CN 107634551 A CN107634551 A CN 107634551A
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- battery
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- array
- electric resistance
- resistance
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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
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Abstract
The invention discloses a kind of battery charger, including electric resistance array module, electric resistance array control module, detection module and main control module, electric resistance array module is connected with electric resistance array control module and detection module respectively, and main control module is connected with detection module and electric resistance array control module respectively.When battery is charged according to the first charging temperature thresholding of setting, after main control module determines target resistance array according to the first charging temperature thresholding, the target resistance array for controlling electric resistance array control module to connect in electric resistance array module, detection module is received by the comparative result of its internal partial pressure value and the partial pressure value of target resistance array, judge whether the temperature of battery reaches the upper limit or lower limit of the first charging temperature thresholding, if so, then control electric resistance array control module switches to electric resistance array corresponding to the second charging temperature thresholding preset in connection electric resistance array module.The invention also discloses a kind of method for charging batteries and terminal.The present invention improves the efficiency of battery charging.
Description
Technical field
The present invention relates to Charge Management technical field, more particularly to a kind of battery charger, method and terminal.
Background technology
At present, the charging protection mechanism of battery, charging current and charging voltage are set by detecting battery temperature, mainly
Purpose is that protection battery life and user are safe to use.In prior art, precalculated Battery pack charging temperature
The build-out resistor of degree, it can only be charged when then charging with the strategy of this fixation, i.e., according to precalculated peripheral electricity
Resistance matching is charged, and the resistors match will be unable to change after determining.For example, when setting [- 10,60] charging temperature thresholding is carried out
During charging, charged, then can not be realized if it is desired to being changed to [0,45] charging temperature thresholding.
Therefore, during charging, when the temperature for detecting battery exceeds certain charging temperature thresholding, cut-off is filled
Electricity.For example, when the temperature of battery is higher and the electricity of battery is relatively low, it can only wait until that the temperature of battery lowers and recharge；
Under power down condition, when the initial temperature of battery is higher, shutdown charging can be caused not carry out, so as to reduce battery charging
Efficiency.
The content of the invention
It is a primary object of the present invention to provide a kind of battery charger, method and terminal, it is intended to improve battery charging
Efficiency.
To achieve the above object, the invention provides a kind of battery charger, the battery charger to include resistance
Array module, electric resistance array control module, detection module and main control module, the electric resistance array module respectively with the Resistor Array Projector
Row control module and detection module connection, the main control module control with the detection module and the electric resistance array respectively
Module connects；
When battery is charged according to the first charging temperature thresholding of setting, the main control module fills according to described first
After electro-temperature thresholding determines target resistance array, the electric resistance array control module is controlled to connect in the electric resistance array module
The target resistance array, and the detection module is received by its internal partial pressure value and the partial pressure value of the target resistance array
Comparative result obtained from being compared, judge whether the temperature of the battery reaches described first and fill according to the comparative result
The upper limit or lower limit of electro-temperature thresholding, if so, then controlling the electric resistance array control module to switch to connects the electric resistance array
Electric resistance array corresponding to the second preset charging temperature thresholding in module.
Alternatively, the electric resistance array module includes multigroup electric resistance array, and every group of electric resistance array includes two resistance.
Alternatively, the electric resistance array control module includes multigroup switch arrays, and every group of switch arrays include two switches.
Alternatively, when the electric resistance array module includes first resistor array and second resistance array, first electricity
Resistance array includes first resistor and second resistance, and the second resistance array includes 3rd resistor and the 4th resistance；
When the electric resistance array control module includes first switch array and second switch array, the first switch array
Including first switch and second switch, the second switch array includes the 3rd switch and the 4th switch；
One end of the first resistor is connected with the first switch, the second resistance and the second switch successively,
Form the first series circuit；One end of the 3rd resistor switchs with the described 3rd successively, the 4th resistance and the described 4th
Switch series connection, forms the second series circuit；First series circuit is in parallel with second series circuit；
The other end of the first resistor and the other end of the 3rd resistor are connected with the battery；Described first opens
Close and the detection module is connected between the second resistance, institute is connected between the 3rd switch and the 4th resistance
State detection module；
The electric resistance array module also includes thermistor, and the second switch and the 4th switch pass through the heat
Quick resistance eutral grounding.
Alternatively, the detection module includes multiple comparators.
Alternatively, when the detection module includes first comparator and the second comparator, the detection module also includes
First single-pole double-throw switch (SPDT), the second single-pole double-throw switch (SPDT), the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance and the 9th electricity
Resistance；
The in-phase input end of the first comparator is connected with the inverting input of second comparator, first ratio
Inverting input compared with device is connected with the moved end of first single-pole double-throw switch (SPDT), first single-pole double-throw switch (SPDT) first not
Moved end and second is not in series with the 6th resistance between moved end, first single-pole double-throw switch (SPDT) first not moved end pass through described
Five resistance are connected with the battery；
The in-phase input end of second comparator is connected with the moved end of second single-pole double-throw switch (SPDT), and described second is single
The first of double-pole double throw switch not moved end by the 7th resistance and first single-pole double-throw switch (SPDT) second not moved end be connected,
Moved end and second is not in series with the 8th resistance between moved end to the first of second single-pole double-throw switch (SPDT), and second hilted broadsword is double
Moved end does not pass through the 9th resistance eutral grounding to the second of throw switch.
In addition, to achieve the above object, present invention also offers a kind of terminal, the terminal is included described in said structure
Battery charger.
In addition, to achieve the above object, present invention also offers a kind of method for charging batteries, the method for charging batteries bag
Include：
Control terminal charges according to the first charging temperature thresholding of setting to battery；
Judge whether the temperature of the battery reaches the upper limit or lower limit of the first charging temperature thresholding；
If the temperature of the battery reaches the upper limit or lower limit of the first charging temperature thresholding, the terminal is controlled to cut
The second preset charging temperature thresholding is shifted to charge to the battery.
Alternatively, the control terminal switches to the second preset charging temperature thresholding and the battery is charged
Include afterwards：
Judge whether the Current Temperatures of the battery reach the upper limit or lower limit of the second charging temperature thresholding；
If so, then by charging, until the Current Temperatures of the battery are in the range of the second charging temperature thresholding
When, the battery is charged again；
If it is not, current charged state is then maintained, until the battery completes charging.
Battery charger includes electric resistance array module, electric resistance array control module, detection module in the embodiment of the present invention
And main control module, wherein, electric resistance array module is connected with electric resistance array control module and detection module respectively, main control module difference
It is connected with detection module and electric resistance array control module.When battery is charged according to the first charging temperature thresholding of setting,
After main control module determines target resistance array according to the first charging temperature thresholding, control electric resistance array control module connects Resistor Array Projector
Target resistance array in row module, and receive detection module and enter its internal partial pressure value and the partial pressure value of target resistance array
Comparative result obtained from row compares, judges whether the temperature of battery reaches the upper of the first charging temperature thresholding according to comparative result
Limit or lower limit, if so, then control electric resistance array control module switches to the second charging temperature preset in connection electric resistance array module
Spend electric resistance array corresponding to thresholding.The temperature according to battery is realized, dynamic control charging temperature thresholding is effectively charged,
Improve the efficiency of battery charging.
Brief description of the drawings
Fig. 1 is the high-level schematic functional block diagram of battery charger of the present invention；
Fig. 2 is the electrical block diagram of battery charger of the present invention；
Fig. 3 is the schematic flow sheet of the embodiment of method for charging batteries one of the present invention.
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the present invention is carried out it is clear, completely retouch
State, it is clear that described embodiment is only the part of the embodiment of the present invention, rather than whole embodiments.Based on this hair
Bright embodiment, the every other implementation that those of ordinary skill in the art are obtained on the premise of creative work is not made
Example, belongs to protection scope of the present invention.
It is to be appreciated that the description for being related to " first ", " second " etc. in the present invention be only used for describe purpose, and it is not intended that
Indicate or imply its relative importance or the implicit quantity for indicating indicated technical characteristic.Therefore, define " first ",
At least one this feature can be expressed or be implicitly included to the feature of " second ".In addition, the technical side between each embodiment
Case can be combined with each other, but must can be implemented as basis with those of ordinary skill in the art, when the combination of technical scheme
Occur conflicting or will be understood that the combination of this technical scheme is not present when can not realize, also not in the guarantor of application claims
Within the scope of shield.
As shown in figure 1, show a kind of method for charging batteries first embodiment of the present invention.The battery charging dress of the embodiment
Put including electric resistance array module 30, electric resistance array control module 40, detection module 20 and main control module 10, the electric resistance array mould
Block 30 is connected with the electric resistance array control module 40 and the detection module 20 respectively, the main control module 10 respectively with it is described
Detection module 20 and the electric resistance array control module 40 connect.The battery charger can be applied to terminal-pair battery and be filled
Electricity, the type of the terminal can be configured according to being actually needed, for example, the terminal can be mobile phone, tablet personal computer etc..
Wherein, the electric resistance array module 30 includes multigroup electric resistance array, and every group of electric resistance array includes two resistance.Filling
In the process of electricity, one group of electric resistance array therein need to be only selected, the determination of electric resistance array is mainly according to formula (1) and formula
(2) it is calculated.
Rs1, Rs2 represent the resistance of two resistance in electric resistance array to be determined, and Rntc1 represents charging temperature thresholding
Battery resistance corresponding to the lower limit temperature of (ending chargeable range), Rntc2 represent the ceiling temperature institute of charging temperature thresholding
Corresponding battery resistance (i.e. battery NTC resistance values), Rntc1 and Rntc2 can by inquire about temperature and resistance that battery charges it
Between mapping table obtain.A, b represents the percentage of voltage corresponding to the lower limit temperature and ceiling temperature of charging temperature thresholding respectively
Value, a, b can be set as the case may be and flexibly.For example, when setting the charging temperature thresholding of battery to be [0 DEG C, 45 DEG C], it is right
A%, the b% answered is respectively 70%, 30%, and known battery battery resistance at 0 DEG C, 45 DEG C is respectively Rntc1 and Rntc2,
Two resistance values Rs1, Rs2 of electric resistance array can be then calculated according to formula (1) and formula (2).
The group number for the electric resistance array that electric resistance array module 30 includes can be according to charging temperature thresholding (ending chargeable range)
Number be configured, the number for the charging temperature thresholding if desired used is more, then needs to set more electric resistance array.Example
Such as, when needing to set [0,45], [0,60], [- 10,45], [- 10,60] this four charging temperature thresholdings, it is necessary to set 4 groups
Electric resistance array realizes the charge control strategy of battery.
The electric resistance array control module 40 includes multigroup switch arrays, and every group of switch arrays include two switches.The electricity
Resistance array control module 40 mainly is responsible for switching over electric resistance array.For example, it can be cut according to different charging temperature thresholdings
Change to different electric resistance arrays.Corresponding occasion is exactly the different usage scenarios according to user, and different temperature rise rates is corresponding
Strict or loose charging temperature thresholding is set.
During battery charges, multigroup switch arrays in electric resistance array control module 40, there can only be one group of switch
Array closes the switch arrays shut-off of other groups.The group number of multigroup switch arrays can be consistent with the group number of electric resistance array, and one
One correspondence, i.e., when needing certain group electric resistance array, switch arrays corresponding to this group of electric resistance array close.
The detection module 20 includes multiple comparators.The number of comparator can be according to the group number and switch arrays of electric resistance array
The group number of row determines, for example, when the group number of electric resistance array and the group number of switch arrays are two groups, two comparisons can be set
Device.
After electric resistance array determination, the first partial pressure value can be calculated according to electric resistance array, the with the inside of detection module
Two partial pressure values are compared, and judge whether comparator needs triggering to interrupt.If the first partial pressure value is equal with the second partial pressure value, touch
Hair interrupts；If the first partial pressure value is less than the second partial pressure value, release is interrupted.
It is illustrated below, when electric resistance array module 30 includes two groups of electric resistance arrays, electric resistance array control module 40
Including two groups of switch arrays, detection module 20 includes two comparators, also, set battery -10 DEG C of temperature, 0 DEG C, 45 DEG C,
60 DEG C of magnitudes of voltage for corresponding to 80%, 70%, 30%, 20% respectively.Charge start when, main control module 10 controls battery according to setting
Fixed the first charging temperature thresholding [0 DEG C, 45 DEG C] is charged, according to parameter corresponding to [0 DEG C, 45 DEG C] bring into formula (1) and
Target resistance array Rs1, Rs2 is calculated in formula (2), and controls electric resistance array control module 40 closure switch array K1, K2,
The target resistance array Rs1, the Rs2 connected in electric resistance array module 30.During charging, detection module 20 is obtained in it
First partial pressure value in portion and the second partial pressure value of target resistance array are compared, and judge whether the first partial pressure value is equal to second point
Pressure value.When the first partial pressure value is equal to the second partial pressure value, illustrate that the current charging temperature of battery has reached 45 DEG C, or battery
Current charging temperature has reached 0 DEG C, i.e. the temperature of battery reach the first charging temperature thresholding [0 DEG C, 45 DEG C] the upper limit or
Lower limit, it will now trigger the interruption of 45 DEG C or 0 DEG C.Electric resistance array control module 40 is controlled to disconnect switch arrays K1, K2 simultaneously,
Closure switch array K3, K4, switch to the second charging temperature thresholding [- 10 DEG C, 60 DEG C] connected in electric resistance array module 30 right
Electric resistance array Rs3, the Rs4 answered, continues to charge to battery.During being charged according to [- 10 DEG C, 60 DEG C], when
By charging when battery temperature reaches 60 DEG C or -10 DEG C, and continue to charge when battery temperature is in the range of [- 10 DEG C, 60 DEG C]
Until the charging of complete battery pair.So that battery can be charged according to JEITA rechargeable standards.
For the embodiment of the present invention when battery is charged according to the first charging temperature thresholding of setting, main control module is according to
After one charging temperature thresholding determines target resistance array, the target in control electric resistance array control module connection electric resistance array module
Electric resistance array, and receive detection module by its internal partial pressure value compared with the partial pressure value of target resistance array obtained from
Comparative result, judge whether the temperature of battery reaches the upper limit or lower limit of the first charging temperature thresholding according to comparative result, if so,
Then control electric resistance array control module, which switches to, connects electricity corresponding to the second charging temperature thresholding preset in electric resistance array module
Hinder array.The temperature according to battery is realized, dynamic control charging temperature thresholding is effectively charged, and improves battery charging
Efficiency.
Further, as shown in Fig. 2 in the present embodiment, when the electric resistance array module 30 include first resistor array and
During second resistance array, the first resistor array includes first resistor R1 and second resistance R2, the second resistance array bag
Include 3rd resistor R3 and the 4th resistance R4；
When the electric resistance array control module includes first switch array and second switch array, the first switch array
Including first switch K1 and second switch K2, the second switch array includes the 3rd switch K3 and the 4th switch K4；
One end of the first resistor R1 successively with the first switch K1, the second resistance R2 and the second switch
K2 connects, and forms the first series circuit；One end of the 3rd resistor R3 switchs K3, the 4th resistance with the described 3rd successively
R4 and the 4th switch series connection K4, forms the second series circuit；First series circuit and second series circuit are simultaneously
Connection；
The other end of the first resistor R1 and the 3rd resistor R3 other end are connected with the battery；Described
The detection module 20, the 3rd switch K3 and the 4th resistance are connected between the one switch K1 and second resistance R2
The detection module 20 is connected between R4.
The electric resistance array module 30 also includes thermistor Rntc, the second switch K2 and the 4th switch K4 is equal
It is grounded by the thermistor Rntc.
In the present embodiment, exemplified by two groups of electric resistance arrays are set, first resistor R1, second resistance in first resistor array
3rd resistor R3, the 4th resistance R4 select the resistance of 1% precision in R2, and second resistance array, to improve detection module 20
The precision of middle comparator.Can only there are one group of switch arrays closure, another group of switch in first switch array and second switch array
Array disconnects.
During battery is charged, it is determined that electric resistance array two resistance resistance after, control K1/K2 switch
Synchronizing close, K3/K4 switches are synchronous to be disconnected, or control K1/K2 switches K3/K4 switch synchronizing closes, can use with disconnecting
Corresponding charging current and charging voltage are charged with JEITA standards to battery.
Further, when the detection module 20 includes first comparator U1 and the second comparator U2, the detection mould
Block 20 also includes the first single-pole double-throw switch (SPDT) S1, the second single-pole double-throw switch (SPDT) S2, the 5th resistance R5, the 6th resistance R6, the 7th electricity
Hinder R7, the 8th resistance R8 and the 9th resistance R9；
The in-phase input end of the first comparator U1 is connected with the inverting input of the second comparator U2, and described
One comparator U1 inverting input is connected with the moved end of the first single-pole double-throw switch (SPDT) S1, first single-pole double-throw switch (SPDT)
Moved end and second is not in series with the 6th resistance R6 between moved end to the first of S1, the first single-pole double-throw switch (SPDT) S1 first not
Moved end is connected by the 5th resistance R5 with the cell p ower；
The in-phase input end of the second comparator U2 is connected with the moved end of the second single-pole double-throw switch (SPDT) S2, and described
Moved end does not pass through the second of the 7th resistance R7 and the first single-pole double-throw switch (SPDT) S1 to the first of two single-pole double-throw switch (SPDT) S2
Moved end does not connect, the second single-pole double-throw switch (SPDT) S2 first not moved end and second be not in series with the 8th resistance between moved end
Moved end is not grounded the second of R8, the second single-pole double-throw switch (SPDT) S2 by the 9th resistance R9.
It should be noted that the detection module 20 may be configured as battery management chip, the inside bag of the battery management chip
Include the first comparator U1 of said structure, the second comparator U2, the first single-pole double-throw switch (SPDT) S1, the second single-pole double-throw switch (SPDT) S2,
5th resistance R5, the 6th resistance R6, the 7th resistance R7, the 8th resistance R8 and the 9th resistance R9 etc., its annexation and foregoing one
Cause.
The charging principle of battery will be illustrated below, in the charging temperature thresholding according to comparator and battery,
The electric resistance array of precalculated matching perceives the temperature of battery.For example, -10 DEG C of 70% correspondence, 30% is corresponding 60 DEG C, this
It can be actually needed and be configured.According to above-mentioned formula (1) and formula (2), it is possible to calculate the resistance of battery temperature matching
Array.
Specifically, as in Fig. 2, in one embodiment, set charging temperature thresholding and battery is filled as [0 DEG C, 45 DEG C]
Electricity, the a% being somebody's turn to do in formula (1) and formula (2) corresponding to [0 DEG C, 45 DEG C] is 70%, b% 30%, and battery corresponding to 0 DEG C is
Rntc1, battery corresponding to 45 DEG C are Rntc2, then the resistance that electric resistance array is calculated is R1 and R2.Now, the first hilted broadsword is double
Throw switch S1 to second not moved end close, the first single-pole double-throw switch (SPDT) S1 to first not moved end close, while first switch K1 and
Second switch K2 is closed.During charging, when the temperature for detecting battery reaches 0 DEG C of low temperature, first comparator U1 is defeated
Go out COLD interrupt signals to main control module 10, or detect battery temperature reach a high temperature 45 DEG C when, the second comparator U2 output
HOT interrupt signals are to main control module 10, after main control module 10 receives interrupt signal, cut-off charging.When the temperature of battery is [0
DEG C, 45 DEG C] in the range of when, continue to charge.
In another embodiment, charging temperature thresholding is set during beginning to charge to battery as [0 DEG C, 45 DEG C], is somebody's turn to do [0
DEG C, 45 DEG C] corresponding to a% in formula (1) and formula (2) be 70%, b% 30%, 0 DEG C of battery answered is Rntc1,45 DEG C
Corresponding battery is Rntc2, then the resistance that electric resistance array is calculated is R1 and R2.Now, the first single-pole double-throw switch (SPDT) S1 to
Second not moved end close, the first single-pole double-throw switch (SPDT) S1 to first not moved end close, while first switch K1 and second switch K2
Closure.During charging, detect battery temperature reach a high temperature 45 DEG C when, switch to charging temperature thresholding as [- 10
DEG C, 60 DEG C] battery is charged according to JEITA standards reduction charging voltage and current.It is higher simultaneously without battery temperature
And battery electric quantity it is low when, it is necessary to recharged when battery temperature lowers, improve the efficiency of charging.[- 10 DEG C, 60 DEG C] corresponding
Formula (1) and formula (2) in a% be 80%, b% 20%, -10 DEG C of batteries answered are Rntc3, battery corresponding to 60 DEG C
For Rntc4, then the resistance that electric resistance array is calculated is R3 and R4.Now, the first single-pole double-throw switch (SPDT) S1 is to the first not moved end
Closure, the first single-pole double-throw switch (SPDT) S1 to second not moved end close, simultaneously switch off first switch K1 and second switch K2, and close
3rd switch K3 and the 4th switch K4.During charging, when the temperature for detecting battery reach a high temperature 60 DEG C when, output
HOT interrupt signals are to main control module 10, triggering cut-off charging；Or when detecting that the temperature of battery reaches -10 DEG C of low temperature, output
COLD interrupt signals are to main control module 10, triggering cut-off charging.When the temperature of battery is in the range of [- 10 DEG C, 60 DEG C], continue
Charged, until charging complete.
Accordingly, as shown in figure 3, proposing a kind of method for charging batteries first embodiment of the present invention.The battery of the embodiment
Charging method includes：
Step S10, control terminal charges according to the first charging temperature thresholding of setting to battery；
Step S20, judge whether the temperature of the battery reaches the upper limit or lower limit of the first charging temperature thresholding；
If the temperature of step S30, described battery reaches the upper limit or lower limit of the first charging temperature thresholding, institute is controlled
State terminal and switch to the second preset charging temperature thresholding and the battery is charged.
In the present embodiment, method for charging batteries can be applied to terminal-pair battery and be charged, and the type of the terminal can basis
It is actually needed and is configured, for example, terminal can be mobile phone, tablet personal computer etc..When being charged to battery, terminal first is pressed
Battery is charged according to the first charging temperature thresholding of setting, the first charging temperature thresholding may be configured as [0 DEG C, 45 DEG C],
First charging temperature thresholding is arranged into [0 DEG C, 45 DEG C] to charge to battery, on the one hand from the point of view of JEITA rechargeable standards, [0
DEG C, 45 DEG C] charging temperature thresholding judged by hardware interrupts, more precise and high efficiency.On the other hand [0 DEG C, 45 DEG C] charging temperature
Temperature in degree thresholding is detected by hardware interrupts, it is not necessary to which software ADC is detected, and saves electric current.Certainly, the first charging temperature
Thresholding can also be set as the case may be and flexibly.
Terminal during charging, judge battery temperature whether reach the first charging temperature thresholding the upper limit or under
Limit, if so, then triggering the upper limit of the first charging temperature thresholding or the interruption of lower limit, according to JEITA standards, reduce constant-voltage charge door
Limit and charging current, while continue to charge to battery by switching charging temperature thresholding to the second charging temperature thresholding, should
Second charging temperature thresholding may be configured as [- 10 DEG C, 60 DEG C].In the case of terminal closedown, charging temperature thresholding be arranged to [- 10 DEG C,
60 DEG C] wide thresholding, like this, it is ensured that in battery high-temperature and in the case of exhausting, can preferentially charge.Certainly, second fills
Also guest is set electro-temperature thresholding as the case may be and flexibly.
In the present embodiment, include after above-mentioned steps S30：Judge whether the Current Temperatures of the battery reach described second
The upper limit or lower limit of charging temperature thresholding；If so, then by charging, until the Current Temperatures of the battery are in the described second charging
When in the range of temperature threshold, the battery is charged again；If it is not, current charged state is then maintained, until described
Battery completes charging.
Specifically, as in Fig. 2, in one embodiment, set charging temperature thresholding and battery is filled as [0 DEG C, 45 DEG C]
Electricity, the a% being somebody's turn to do in formula (1) and formula (2) corresponding to [0 DEG C, 45 DEG C] is 70%, b% 30%, and battery corresponding to 0 DEG C is
Rntc1, battery corresponding to 45 DEG C are Rntc2, then the resistance that electric resistance array is calculated is R1 and R2.Now, the first hilted broadsword is double
Throw switch S1 to second not moved end close, the first single-pole double-throw switch (SPDT) S1 to first not moved end close, while first switch K1 and
Second switch K2 is closed.During charging, when the temperature for detecting battery reaches 0 DEG C of low temperature, first comparator U1 is defeated
Go out COLD interrupt signals to main control module 10, or detect battery temperature reach a high temperature 45 DEG C when, the second comparator U2 output
HOT interrupt signals are to main control module 10, after main control module 10 receives interrupt signal, cut-off charging.When the temperature of battery is [0
DEG C, 45 DEG C] in the range of when, continue to charge.
In another embodiment, charging temperature thresholding is set during beginning to charge to battery as [0 DEG C, 45 DEG C], is somebody's turn to do [0
DEG C, 45 DEG C] corresponding to a% in formula (1) and formula (2) be 70%, b% 30%, 0 DEG C of battery answered is Rntc1,45 DEG C
Corresponding battery is Rntc2, then the resistance that electric resistance array is calculated is R1 and R2.Now, the first single-pole double-throw switch (SPDT) S1 to
Second not moved end close, the first single-pole double-throw switch (SPDT) S1 to first not moved end close, while first switch K1 and second switch K2
Closure.During charging, detect battery temperature reach a high temperature 45 DEG C when, switch to charging temperature thresholding as [- 10
DEG C, 60 DEG C] battery is charged according to JEITA standards reduction charging voltage and current.It is higher simultaneously without battery temperature
And battery electric quantity it is low when, it is necessary to recharged when battery temperature lowers, improve the efficiency of charging.[- 10 DEG C, 60 DEG C] corresponding
Formula (1) and formula (2) in a% be 80%, b% 20%, -10 DEG C of batteries answered are Rntc3, battery corresponding to 60 DEG C
For Rntc4, then the resistance that electric resistance array is calculated is R3 and R4.Now, the first single-pole double-throw switch (SPDT) S1 is to the first not moved end
Closure, the first single-pole double-throw switch (SPDT) S1 to second not moved end close, simultaneously switch off first switch K1 and second switch K2, and close
3rd switch K3 and the 4th switch K4.During charging, when the temperature for detecting battery reach a high temperature 60 DEG C when, output
HOT interrupt signals are to main control module 10, triggering cut-off charging；Or when detecting that the temperature of battery reaches -10 DEG C of low temperature, output
COLD interrupt signals are to main control module 10, triggering cut-off charging.When the temperature of battery is in the range of [- 10 DEG C, 60 DEG C], continue
Charged, until charging complete.
It is illustrated below, in one embodiment, when requiring terminal end surface temperature no more than under certain scene
At 45 DEG C, if now corresponding battery temperature is 35 DEG C, 35 DEG C of cut-off chargings when charging are set for the scene can, and lead to
Hardware is crossed to control charging so that the charge efficiency of terminal is higher, and control is more accurate.
In another implementation, when terminal is wearable device, wearable device is higher to temperature increase requirement, so charging
Charging temperature thresholding is used as [0 DEG C, 45 DEG C], can so control the charging temperature rise of wearable device well, improves user
Experience.But in production test occasion, it is necessary to continuance test long time especially in reliability testing, so needing
Band charger is tested.But due to wearable device small volume, temperature rise is fast, [0 DEG C, 45 DEG C] thresholding is very easy to reach, so
During production test, it is necessary to be switched to [- 10 DEG C, 60 DEG C] wider charging temperature thresholding.When wearable device dispatches from the factory, it is switched to
The charging temperature thresholding of [0 DEG C, 45 DEG C], it is user-friendly the charging temperature thresholding and wearable device is charged.
In another embodiment, so that terminal is mobile phone as an example, the charging temperature thresholding of mobile phone acquiescence is [0 DEG C, 45 DEG C], when
User is made a phone call until dead battery capability using mobile phone, and the temperature of battery, more than 45 DEG C, now user uses charger
Battery process is charged, it may appear that can not charge situation about cannot also start shooting, and user may think that when running into this phenomenon is
Mobile phone breaks down.For this phenomenon, in the present embodiment, in the case of mobile phone shutdown, charging temperature thresholding can be switched to
[- 10 DEG C, 60 DEG C] charge to battery, ensure to charge during battery high-temperature, improve the charge efficiency of battery, improve
Consumer's Experience.
The present embodiment terminal according to the first charging temperature thresholding of setting to battery during charging, if battery
Temperature reach the upper limit or lower limit of the first charging temperature thresholding, then control terminal to switch to the second preset charging temperature thresholding
Battery is charged.Relative to need wait battery temperature recover to specified charging temperature thresholding when can be filled
Electricity, improve the charge efficiency of battery.
The preferred embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (9)
1. a kind of battery charger, it is characterised in that the battery charger includes electric resistance array module, electric resistance array control
Molding block, detection module and main control module, the electric resistance array module respectively with the electric resistance array control module and the inspection
Module connection is surveyed, the main control module is connected with the detection module and the electric resistance array control module respectively；
When battery is charged according to the first charging temperature thresholding of setting, the main control module is according to the described first charging temperature
After degree thresholding determines target resistance array, the electric resistance array control module is controlled to connect described in the electric resistance array module
Target resistance array, and receive the detection module and carry out its internal partial pressure value and the partial pressure value of the target resistance array
Comparative result obtained from comparing, judge whether the temperature of the battery reaches the first charging temperature according to the comparative result
The upper limit or lower limit of thresholding are spent, if so, then controlling the electric resistance array control module to switch to connects the electric resistance array module
In electric resistance array corresponding to preset the second charging temperature thresholding.
2. battery charger as claimed in claim 1, it is characterised in that the electric resistance array module includes multigroup Resistor Array Projector
Row, every group of electric resistance array include two resistance.
3. battery charger as claimed in claim 2, it is characterised in that the electric resistance array control module includes multigroup open
Array is closed, every group of switch arrays include two switches.
4. battery charger as claimed in claim 3, it is characterised in that when the electric resistance array module includes first resistor
When array and second resistance array, the first resistor array includes first resistor and second resistance, the second resistance array
Including 3rd resistor and the 4th resistance；
When the electric resistance array control module includes first switch array and second switch array, the first switch array includes
First switch and second switch, the second switch array include the 3rd switch and the 4th switch；
One end of the first resistor is connected with the first switch, the second resistance and the second switch successively, is formed
First series circuit；One end of the 3rd resistor switchs with the described 3rd switch, the 4th resistance and the described 4th successively
Series connection, form the second series circuit；First series circuit is in parallel with second series circuit；
The other end of the first resistor and the other end of the 3rd resistor are connected with the battery；The first switch with
The detection module is connected between the second resistance, the inspection is connected between the 3rd switch and the 4th resistance
Survey module；
The electric resistance array module also includes thermistor, and the second switch and the 4th switch pass through temperature-sensitive electricity
Resistance ground connection.
5. battery charger as claimed in claim 1, it is characterised in that the detection module includes multiple comparators.
6. battery charger as claimed in claim 5, it is characterised in that when the detection module include first comparator and
During the second comparator, the detection module also includes the first single-pole double-throw switch (SPDT), the second single-pole double-throw switch (SPDT), the 5th resistance, the
Six resistance, the 7th resistance, the 8th resistance and the 9th resistance；
The in-phase input end of the first comparator is connected with the inverting input of second comparator, the first comparator
Inverting input be connected with the moved end of first single-pole double-throw switch (SPDT), the first not moved end of first single-pole double-throw switch (SPDT)
Be in series with the 6th resistance between second not moved end, first single-pole double-throw switch (SPDT) first not moved end pass through the described 5th electricity
Resistance is connected with the battery；
The in-phase input end of second comparator is connected with the moved end of second single-pole double-throw switch (SPDT), and second hilted broadsword is double
The first of throw switch not moved end by the 7th resistance and first single-pole double-throw switch (SPDT) second not moved end be connected, it is described
Moved end and second is not in series with the 8th resistance between moved end to the first of second single-pole double-throw switch (SPDT), and second single-pole double throw is opened
Moved end does not pass through the 9th resistance eutral grounding to second closed.
7. a kind of terminal, it is characterised in that the terminal includes the battery charging dress as any one of claim 1-6
Put.
8. a kind of method for charging batteries, it is characterised in that the method for charging batteries comprises the following steps：
Control terminal charges according to the first charging temperature thresholding of setting to battery；
Judge whether the temperature of the battery reaches the upper limit or lower limit of the first charging temperature thresholding；
If the temperature of the battery reaches the upper limit or lower limit of the first charging temperature thresholding, the terminal is controlled to switch to
The second preset charging temperature thresholding charges to the battery.
9. method for charging batteries as claimed in claim 8, it is characterised in that the control terminal switches to preset the
Two charging temperature thresholdings include after being charged to the battery：
Judge whether the Current Temperatures of the battery reach the upper limit or lower limit of the second charging temperature thresholding；
If so, then by charging, until the Current Temperatures of the battery are when in the range of the second charging temperature thresholding, it is heavy
Newly the battery is charged；
If it is not, current charged state is then maintained, until the battery completes charging.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610565618.1A CN107634551A (en) | 2016-07-18 | 2016-07-18 | Battery charger, method and terminal |
| PCT/CN2016/108589 WO2018014486A1 (en) | 2016-07-18 | 2016-12-05 | Battery charging device, method and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610565618.1A CN107634551A (en) | 2016-07-18 | 2016-07-18 | Battery charger, method and terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107634551A true CN107634551A (en) | 2018-01-26 |
Family
ID=60991866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610565618.1A Withdrawn CN107634551A (en) | 2016-07-18 | 2016-07-18 | Battery charger, method and terminal |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107634551A (en) |
| WO (1) | WO2018014486A1 (en) |
Cited By (1)
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|---|---|---|---|---|
| CN109613331A (en) * | 2018-12-19 | 2019-04-12 | 广东电网有限责任公司 | A kind of alternating current charging stake detection load and method based on double load arrays |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112998744B (en) * | 2021-03-16 | 2023-03-10 | 广州医科大学附属第一医院（广州呼吸中心） | Stethoscope capable of being interpreted |
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| US20040008754A1 (en) * | 2002-07-11 | 2004-01-15 | International Business Machines Corporation | On-chip thermal sensing circuit |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2018014486A1 (en) | 2018-01-25 |
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