CN104428970B - Cell protection circuit and method - Google Patents
Cell protection circuit and method Download PDFInfo
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- CN104428970B CN104428970B CN201480001782.9A CN201480001782A CN104428970B CN 104428970 B CN104428970 B CN 104428970B CN 201480001782 A CN201480001782 A CN 201480001782A CN 104428970 B CN104428970 B CN 104428970B
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Abstract
The invention provides a cell protection circuit and a method. In the cell protection circuit, a main control module receives a voltage value of a cell and achieved via a voltage detection module, receives a temperature value of the cell and achieved via a temperature detection module, determins during a continuous period when the temperature value continues to be higher than preset celling temperature,and a second continuous period when the voltage value continues to be larger than preset ceiling voltage reaches preset time, a disconnection signal is output to a first switch module and a connection signal is output to a third switch; when the first switch receives the disconnection signal output by the main control module, a charging loop that the cell is charged by a power supplying module is disconnected; when the third switch module receives the connection signal output by the main control module, the charging loop is connected; and by the use of the cell protection circuit and method, the cell can be timly charged and discharged, so efficancy losing speed of the cell is reduced.
Description
Technical field
The invention belongs to chargeable battery core field, more particularly to a kind of battery core protection circuit and method.
Background technology
Chargeable battery core, as stand-by power supply, can charge at any time, for the communication for being operated in the adverse circumstances such as high temperature sets
It is standby, it is indispensable.
At present, as the function of the mobile terminals such as smart mobile phone is gradually enriched, the movement transmitted using mobile communications network
Data significantly increase, and this brings enormous pressure to the communication apparatus for carrying data.Such as, for the user resident for carrying data
Equipment (Customer Premise Equipment, CPE), needs to allow greater number of mobile terminal to access, it is ensured that each
Mobile terminal can be normally carried out the mobile data transfer of uplink/downlink.The data that the access of a large amount of mobile terminals is brought are passed
Defeated, the internal temperature that can cause CPE is raised, and CPE need to continue to be worked under higher temperature even high temperature.
Such as CPE needs the communication apparatus that work at high temperature for a long time, once power down, substantial amounts of mobile terminal cannot normally connect
Enter mobile communications network, cause communication disruption, be likely to result in serious consequence, such as being not successfully received for important mobile data;To keep away
Exempt from the interruption of mobile terminal communication, chargeable battery core is equipped with communication apparatus.For the battery core in communication apparatus, also can be long-term
Under hot conditionss, under the high temperature conditions, if battery core voltage more than pre-set upper voltage limit, can increase with battery core voltage
Height, battery core failure is faster, and battery core fails faster when especially battery core is continuously in full voltage state.
The content of the invention
It is an object of the invention to provide a kind of battery core protection circuit, it is intended to solve long-term work in preset upper limit temperature it
Battery core on upper and pre-set upper voltage limit, can accelerate the problem of battery core failure.
In a first aspect, a kind of battery core protection circuit, including supply module, load blocks, voltage detection module, temperature detection
Module and battery core, the battery core respectively with the supply module, the load blocks, the voltage detection module and the temperature
Detection module connects;The battery core protection circuit also includes main control module, first switch module and the 3rd switch module;Described
One switch module is connected between the supply module and the battery core, and the 3rd switch module is connected to the battery core and institute
State between load blocks, the main control module is opened respectively with the voltage detection module, the temperature detecting module, described first
Close module and the 3rd switch module connection;
The main control module is used for:Receive the electricity that the voltage detection module carries out obtained by voltage detecting to the battery core
Pressure value, the reception temperature detecting module carries out the temperature value obtained by temperature detection to the battery core;The main control module is also
For:It is determined that within the temperature value the first persistent period persistently higher than preset upper limit temperature, if the magnitude of voltage continues
Preset Time is reached more than the second persistent period of preset upper limit voltage, then exports cut-off signal to the first switch module,
And export communications signals to the 3rd switch module;
The first switch module is used for:When the cut-off signal of the main control module output is received, the confession is disconnected
The charge circuit that electric module charges to the battery core;
3rd switch module is used for:When the communications signals of the main control module output are received, the electricity is connected
Current supply circuit of the core to the power load modules.
In the first possible implementation of first aspect, the main control module is additionally operable to:It is little in the magnitude of voltage
When pre-determined lower limit voltage, communications signals are exported to the first switch module, and disconnected to the 3rd switch module output
Signal;
The first switch module is additionally operable to:When the communications signals of the main control module output are received, connection is described
The charge circuit that supply module charges to the battery core;
3rd switch module is additionally operable to:When the cut-off signal of the main control module output is received, disconnect described
Current supply circuit of the battery core to the power load modules.
With reference to the first possible implementation of first aspect or first aspect, second in first aspect is possible
In implementation, the battery core protection circuit also includes second switch module;The second switch block coupled in series is in the power supply
Between module and the load blocks, and it is connected with the main control module;
The main control module specifically for:Persistently hold higher than described the first of the preset upper limit temperature in the temperature value
In the continuous time, if the magnitude of voltage persistently reaches described presetting more than second persistent period of the preset upper limit voltage
Time, then cut-off signal is exported to the first switch module, to the 3rd switch module communications signals are exported, also to described
Second switch module exports cut-off signal;
The second switch module is used for:When the cut-off signal of the main control module output is received, the confession is disconnected
Current supply circuit of the electric module to the power load modules.
With reference to second possible implementation of first aspect, in the third possible implementation of first aspect
In, the main control module specifically for:When the magnitude of voltage is less than pre-determined lower limit voltage, to first switch module output
Communications signals, and cut-off signal is exported to the 3rd switch module, also export communications signals to the second switch module;
The second switch module is additionally operable to:When the communications signals of the main control module output are received, connection is described
Current supply circuit of the supply module to the power load modules.
Second with reference to first aspect either the first possible implementation of first aspect or first aspect can
The implementation of energy or the third possible implementation of first aspect, in the 4th kind of possible realization side of first aspect
In formula, the main control module includes timing module;
The timing module is used for:To the temperature value persistently higher than the preset upper limit temperature time timing and obtain
First persistent period, to the magnitude of voltage persistently more than the preset upper limit voltage time timing and obtain described second
Persistent period;
The main control module is additionally operable to:When the temperature value is less than the preset upper limit temperature by timing module note
First persistent period of record is set to zero, when the magnitude of voltage is less than the preset upper limit voltage by timing module note
Second persistent period of record is set to zero.
A kind of second aspect, battery core guard method, the battery core guard method includes:
Obtain the magnitude of voltage and temperature value of battery core;
It is determined that within the temperature value the first persistent period persistently higher than preset upper limit temperature, if the magnitude of voltage is held
Continuous the second persistent period more than preset upper limit voltage reaches Preset Time, then the battery core is discharged, wherein, described the
One persistent period was more than or equal to the Preset Time.
In the first possible implementation of second aspect, the battery core guard method also includes:
When the magnitude of voltage is less than pre-determined lower limit voltage, the battery core is charged.
With reference to the first possible implementation of second aspect or second aspect, second in second aspect is possible
In implementation, the battery core guard method also includes:
When the temperature value is less than the preset upper limit temperature, first persistent period is set to into zero;
When the magnitude of voltage is less than the preset upper limit voltage, second persistent period is set to into zero.
The invention has the beneficial effects as follows:Carry out lasting temperature detection to battery core, and the voltage of battery core is carried out lasting
Detection;Temperature value to detecting was the first persistent period higher than the persistent period timing of preset upper limit temperature;To what is detected
Magnitude of voltage was the second persistent period more than the persistent period timing of preset upper limit voltage;First persistent period second holds comprising this
The continuous time, when the first persistent period and the second persistent period the Preset Time is simultaneously greater than, stop charging battery core, while
Battery core is discharged by load blocks, reduces the voltage of battery core, slow down the failure speed of battery core.
Description of the drawings
Technical scheme in order to be illustrated more clearly that the embodiment of the present invention, below will be to embodiment or description of the prior art
Needed for the accompanying drawing to be used be briefly described, it should be apparent that, drawings in the following description be only the present invention some
Embodiment, for those of ordinary skill in the art, without having to pay creative labor, can be with according to these
Accompanying drawing obtains other accompanying drawings.
Fig. 1 is the composition structure chart of battery core protection circuit provided in an embodiment of the present invention;
Fig. 2 is a kind of composition structure chart of optimization of battery core protection circuit provided in an embodiment of the present invention;
Fig. 3 is the flow chart of battery core guard method provided in an embodiment of the present invention;
Fig. 4 is a kind of Optimizing Flow figure of battery core guard method provided in an embodiment of the present invention.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, and
It is not used in the restriction present invention.In order to illustrate technical solutions according to the invention, illustrate below by specific embodiment.
Battery core protection circuit provided in an embodiment of the present invention is applied to the equipment for working in high temperature, and including in the equipment can
Charging battery core;For specific equipment, here is not limited, such as router, base station.In the specific embodiment of the present invention
In, battery core protection circuit provided in an embodiment of the present invention is applied to the communication apparatus worked under high temperature will be more excellent, and the communication sets
It is few to the utmost to include communication access device and communication forwarding unit and the data handling equipment in core net etc., such as CPE.
Battery core protection circuit provided in an embodiment of the present invention includes supply module 64, load blocks 66, voltage detection module
67th, temperature detecting module 68 and with battery core 65, such as the battery core protection circuit shown in Fig. 1.In embodiments of the present invention, the electricity
Core 65 respectively with the supply module 64, the load blocks 66, the voltage detection module 67 and the temperature detecting module
68 connections, the battery core 65 is chargeable battery core.In embodiments of the present invention, the load blocks 66 are can to consume electric energy in equipment
Device, such as the radio circuit in communication apparatus.Certainly, also specially can increase for consuming electric energy in load blocks 66
Power consuming circuit, by the power consuming circuit repid discharge of high current is carried out to battery core 65, to reduce the voltage of battery core 65 rapidly, is prolonged
The service life of long battery core 65.
In embodiments of the present invention, supply module 64 need to access the signal of telecommunication from rectification module;Supply module 64 can be by having
Line connects or the mode of wireless connection obtains the signal of telecommunication from rectification module.Specifically, the rectification module is filtered to civil power through EMI
The signal of telecommunication needed for the supply module 64 is obtained after processing with rectification etc..Further, if supply module 64 and the rectification module
It is wired connection, i.e., supply module 64 directly accesses the signal of telecommunication from the rectification module of electrical connection;If supply module 64 with
The rectification module is wireless connection, then rectification module also needs to convert electrical signals to radiofrequency signal, and this is whole for supply module 64 pairs
The radiofrequency signal that flow module gives off is coupled to receive, and the signal of telecommunication being coupled to receive is the access of the supply module 64
The signal of telecommunication.
For supply module 64, it also has Voltage Cortrol, electric current adjustment and/or power adjustment functions;Adjust out load
Load blocks 66 are powered by the drive signal needed for module 66 using the drive signal for adjusting out;What is charged to battery core 65
Different charging stages, the charging signals according to needed for the real-time adjustment of charging voltage of battery core 65 goes out battery core 65, by the charging
Signal charges to battery core 65.
For the supply module 64 of the battery core protection circuit, as a kind of concrete optimization structure, as shown in figure 1, the confession
Electric module 64 at least has power access end (IN+, IN-), charging end (CHR+, CHR-) and feeder ear (SU+, SU-);Wherein,
Power access end IN-, charging end CHR- and feeder ear SU- are grounded.Charging end (the CHR+, CHR-) correspondence of supply module 64 connects
The positive pole and negative pole of the battery core 65.Feeder ear (the SU+, SU-) correspondence of supply module 64 connects the first power end of load circuit
VC1 and earth terminal GND.It should be noted that, other and the incoherent end of the embodiment of the present invention that the supply module 64 is had
Mouthful, here is not limited and described.
In the present embodiment, the supply module 64 accesses the signal of telecommunication from the power access end (IN+, IN-), to accessing
The signal of telecommunication carry out signal adjustment and adjust out drive signal and charging signals respectively.Then, the supply module 64 is from described
Feeder ear SU+ exports the drive signal, the feelings of the current supply circuit connection powered to load blocks 66 in the supply module 64
Under condition, the load blocks 66 are driven to work by the drive signal.In addition, the supply module 64 is from the charging end CHR+
The charging signals are exported, in the case where the charge circuit that the supply module 64 charges to battery core 65 is connected, is filled by this
The signal of telecommunication charges to the battery core 65.
In the present embodiment, for supply module 64 accesses the concrete mode of the signal of telecommunication, supply module 64 is connect by power supply
Enter end (IN+, IN-) to set up wired connection with rectification module or be wirelessly connected;The rectification module is filtered and whole to civil power through EMI
Stream etc. obtains the signal of telecommunication needed for the supply module 64 after processing.Further, if supply module 64 is have with the rectification module
Line connection, i.e., supply module 64 is directly electrically connected by the power access end (IN+, IN-) with the rectification module, the rectification
Module directly can export the signal of telecommunication by the power access end (IN+, IN-) to supply module 64;If supply module 64 with
The rectification module is wireless connection, then rectification module also needs to convert electrical signals to radiofrequency signal, what supply module 64 was provided
Power access end (IN+, IN-) can be coupled by way of antenna is received to the radiofrequency signal that the rectification module gives off
Receive, the signal of telecommunication being coupled to receive is the telecommunications that the supply module 64 is accessed from the power access end (IN+, IN-)
Number.
In the present embodiment, for supply module 64 adjusts out the specific embodiment of drive signal and charging signals, in detail
State as follows:
1, for the voltage needed for different loads module 66, electric current or power, the supply module 64 adjusts out negative with this
Carry the drive signal of the matching of module 66.Specifically, if the load blocks 66 are required to its required voltage, by the power supply
Module 64 adjusts out the drive signal with the required voltage of the load blocks 66, from the power supply electrically connected with load blocks 66
End SU+ exports the drive signal;When the current supply circuit that supply module 64 is powered to load blocks 66 is formed, believed by the driving
Number the load blocks 66 are driven to work on power;If the load blocks 66 are required to its required electric current, the supply module
64 adjust out the drive signal with electric current needed for the load blocks 66;Will if the load blocks 66 have to its power demand
Ask, the supply module 64 adjusts out the drive signal with the power demand of the load blocks 66.It is preferable to carry out in the present invention one
In example, supply module 64 goes out to load mould using PFC (Power Factor Correction, PFC) the regulation of electrical circuit
Drive signal needed for block 66 and adjust out the charging signals;Wherein, the available pfc circuit of supply module 64 include but not
It is limited to following one kind or its combination:The pfc circuit of buck types, the pfc circuit of boost types, buck-boost types PFC it is electric
Road.It is furthermore preferred that can be supply module 64 from linear pfc circuit according to adjustment needs, or it be supply module 64 from non-
Linear pfc circuit.
2, the supply module 64 is also directed to the battery core 65 and is adjusted in the voltage or electric current needed for the different charging stages,
Adjust out and be suitable to battery core 65 (voltage needed for having the charging stage, or has in the charging signals needed for the different charging stages
The charging solves required electric current), the charging signals are exported from the charging end CHR+ that can be electrically connected with the battery core 65, pass through
The charging signals charge to battery core 65.In a preferred embodiment, supply module 64 carries out adopting pulse width modulation
(Pulse Width Modulation, PWM) is adjusted to the signal of telecommunication accessed from the power access end (IN+, IN-),
Required drive signal is adjusted out respectively and adjusts out the charging signals.In a preferred embodiment, load blocks
66 can also adopt the signal adjustment circuit such as pfc circuit and PWM circuit to accessing from the power access end (IN+, IN-)
The signal of telecommunication is combined adjustment, and required drive signal is adjusted out respectively and the charging signals are adjusted out.
In embodiments of the present invention, the voltage detection module 67 for the battery core protection circuit being included and temperature detection mould
Block 68.Wherein, the voltage detection module 67 is used to detect the voltage of the battery core 65, detects to the output of the main control module 61
The magnitude of voltage for arriving.Wherein, the temperature detecting module is used for:The temperature of the battery core 65 is detected, and to the main control module 61
The temperature value that output is detected.
Optimize structure as the one of voltage detection module 67, as shown in figure 1, the voltage detection module 67 at least has electricity
Pressure test side (TV+, TV-) and the first detection output TO1, voltage detecting end (the TV+, TV-) correspondence and the battery core 65
Positive pole and negative pole electrical connection.It should be noted that, other having for the voltage detection module 67 are with the embodiment of the present invention not
Related port, here is not limited and described.
Specifically when voltage detecting is carried out to battery core 65, by voltage detecting end (TV+, TV-) the direct access battery core
Voltage difference between 65 both positive and negative polarity;The voltage difference that voltage detection module 67 pairs gets carries out signal processing, such as to the acquisition
To voltage difference be filtered successively and digital-to-analogue conversion (i.e. AD conversion, including sampling, quantify and encode etc.);Signal processing is gone out
Numerical value as the magnitude of voltage obtained by during the voltage for detecting the battery core 65, export the electricity from first detection output TO1
Pressure value.
Optimize structure as the one of temperature detecting module 68, as shown in figure 1, the temperature detecting module 68 at least has temperature
Degree test side TT and the second detection output TO2, the temperature detection end TT is electrically connected with the battery core 65;The temperature detection
Module 68 detects the temperature of the battery core 65 by the temperature detection end TT, and from second detection output TO2 output
The temperature value for detecting.It should be noted that, it is uncorrelated to the embodiment of the present invention for other that the temperature detecting module 68 has
Port, here do not limit and describes.
Specifically when the temperature of battery core 65 is detected, realized by temperature sensor, directly gathered by the temperature sensor
The temperature of the battery core 65 simultaneously obtains the temperature signal simulated, and the temperature signal of 68 pairs of simulations of temperature detecting module is carried out at signal
Temperature value is obtained after reason, using the temperature value obtained after signal processing as the temperature value for detecting, from the described second inspection
Survey the temperature value that outfan TO2 outputs are detected.In a preferred embodiment, the temperature of 68 pairs of simulations of temperature detecting module
Signal at least employs the modes such as digital-to-analogue conversion (i.e. AD conversion, including sampling, quantization and coding etc.) and carries out signal processing, with
To the temperature value of number format;More optimizedly, during the signal processing for carrying out to the temperature signal of the simulation, in digital-to-analogue
Before conversion, the temperature signal to simulating is filtered to filter noise signal in advance, it is ensured that what is quantified in digital-to-analogue conversion is accurate
Degree.
It is emphasized that battery core protection circuit provided in an embodiment of the present invention also includes main control module 61, first switch mould
The switch module 63 of block 62 and the 3rd;The first switch module 62 is connected between the supply module 64 and the battery core 65,
3rd switch module 63 is connected between the battery core 65 and the load blocks 66, the main control module 61 respectively with institute
State first switch module 62 and the 3rd switch module 63 connects.Wherein, institute is connected or disconnected by first switch module 62
The charge circuit that 64 pairs of battery cores 65 of supply module charge is stated, in first switch module 62 64 pairs of institutes of the supply module are connected
When stating the charge circuit of the charging of battery core 65, supply module 64 to battery core 65 exports charging signals, and battery core 65 is charged.Wherein, lead to
The current supply circuit that the 3rd switch module 63 connected or disconnected 65 pairs of power supplies of the load blocks 66 of the battery core is crossed, in the 3rd switch
When module 63 connects the current supply circuit of 65 pairs of power supplies of the load blocks 66 of the battery core, battery core 65 is supplied by the load blocks 66
Electricity.
In embodiments of the present invention, for the main control module 61 in battery core protection circuit, the main control module 61 respectively with
The voltage detection module 67, the temperature detecting module 68, the first switch module 62 and the 3rd switch module 63
Connection.The main control module 61 is used for:Receiving 67 pairs of battery cores 65 of the voltage detection module is carried out obtained by voltage detecting
Magnitude of voltage, described 68 pairs of battery cores 65 of temperature detecting module of reception carry out the temperature value obtained by temperature detection;The master control
Module 61 is additionally operable to:It is determined that within the temperature value the first persistent period persistently higher than preset upper limit temperature, if the electricity
Pressure value persistently reaches Preset Time more than the second persistent period of preset upper limit voltage, then export to the first switch module 62
Cut-off signal, and export communications signals to the 3rd switch module 63.Further, the first switch module 62 is used for:Connecing
When receiving the cut-off signal of the output of the main control module 61, the charging time that 64 pairs of battery cores 65 of the supply module charge is disconnected
Road.Further, the 3rd switch module 63 is used for:When the communications signals of the output of the main control module 61 are received, institute is connected
State the current supply circuit of 65 pairs of power supplies of the load blocks 66 of battery core.
Optimize structure as the one of main control module 61, as shown in figure 1, the main control module 61 at least has the first test side
T1, the second test side T2, the first control end CTL1 and the 3rd control end CTL3, the first test side T1 connects the voltage detecting
First detection output TO1 of module 67, the second test side T2 connects the second detection output of the temperature detecting module 68
End TO2, first control end CTL1 connects the first controlled end C1 of the first switch module 62, the 3rd control end CTL3
Meet the 3rd controlled end C3 of the 3rd switch module 63;Detect described in the main control module 61 from the first test side T1 receptions
Magnitude of voltage, the temperature value for detecting is received from the second test side T2, in the temperature value for detecting persistently higher than in advance
If if the magnitude of voltage for detecting persistently is held more than the second of preset upper limit voltage in the first persistent period of ceiling temperature
The continuous time reaches Preset Time, then export cut-off signal from first control end CTL1, and from the 3rd control end CTL3
Output communications signals.It should be noted that, other and the incoherent port of the embodiment of the present invention that the main control module 61 is had,
Here is not limited and described.It is another it should be noted that, second persistent period is contained in first persistent period.
In order to protect to the battery core 65 worked under high temperature, the embodiment of the present invention proposes the preset upper limit temperature,
According to the heat-resistant quality of battery core 65, the temperature range for being capable of normal work is determined;It is prolongation within the temperature range of determining
The service life of battery core 65, further determines that the preset upper limit temperature.It is emphasized that due under hot operation, existing
As the voltage of battery core 65 increases faster this characteristic and battery core 65 fails, in order to extend the service life of battery core 65, it is to avoid battery core
65 too fast failures at high temperature, the embodiment of the present invention also proposed the preset upper limit voltage and the predeterminated voltage, and this is preset
Upper voltage limit and the predeterminated voltage can change setting according to the material characteristic of requirement of the equipment to battery core 65 and battery core 65.
And then in embodiments of the present invention, main control module 61 makees following control:Continue to receive described from the second test side T2
The temperature value for detecting, judges whether the temperature value for detecting is higher than preset upper limit temperature, if the temperature for detecting
Angle value is higher than preset upper limit temperature, to the temperature value for detecting higher than the persistent period timing of preset upper limit temperature, will be counted
When time for obtaining as first persistent period.In addition, also from the magnitude of voltage detected described in the first test side T1 receptions,
Within first persistent period, the magnitude of voltage to detecting described in receiving is made whether more than the preset upper limit voltage
Judge, if the magnitude of voltage for detecting carries out, more than the preset upper limit voltage, being more than the magnitude of voltage for detecting
The persistent period timing of the preset upper limit voltage, the time that timing is obtained is used as second persistent period.So as to
In one persistent period to during the second persistent period timing (second persistent period is contained in first persistent period, and
First persistent period was more than for the second persistent period), once the second persistent period timing is then led to the Preset Time
Control module 61 exports cut-off signal from first control end CTL1 immediately, and while from the 3rd control end CTL3 output connection letter
Number.For the cut-off signal that main control module 61 is exported from first control end CTL1, the first switch module 62 can be from the
One controlled end C1 receives the cut-off signal, and then disconnects being electrically connected for the first switch end K1 and second switch end K2
Connect, stop the charging by the charging signals to the battery core 65.For main control module 61 is from the 3rd control end CTL3
The communications signals of output, the 3rd switch module 63 can receive the communications signals from the 3rd controlled end C3, and then set up institute
The electrical connection of the 5th switch terminals K5 and the 6th switch terminals K6 is stated, is powered by 65 pairs of load blocks 66 of the battery core.
So, within the first persistent period, once the second persistent period timing is to the Preset Time, stop filling battery core 65
Electricity, is also discharged battery core 65 by load blocks 66;That is, the first persistent period and the second persistent period be simultaneously greater than it is described pre-
If during the time, stopping is charged to battery core 65, while discharging battery core 65 by load blocks 66, the voltage of battery core 65 is reduced, prolonged
The failure speed of long battery core 65.
Optimize structure as the one of first switch module 62, as shown in figure 1, first switch module 62 has first switch end
K1, second switch end K2 and the first controlled end C1, the first switch end K1 is corresponding with second switch end K2 to connect the power supply mould
The charging end CHR+ of block 64 and the positive pole of the battery core 65, first controlled end C1 connects the first control end of main control module 61
CTL1;The first switch module 62 disconnects the first switch end when cut-off signal is received from the first controlled end C1
The electrical connection of the K1 and second switch end K2, disconnects the charge circuit that supply module 64 charges to battery core 65, stops passing through institute
State charging of the charging signals to the battery core 65.
In embodiments of the present invention, first switch module 62 is serially connected in charging end CHR+ and the institute of the supply module 64
State between the positive pole of battery core 65, can control whether that connect supply module 64 fills to the charging of battery core 65 by first switch module 62
Electrical circuit, decides whether that the charging signals exported by the supply module 64 are charged to battery core 65.Particularly for described first
Whether switch module 62, tapped into by the first controlled end C1 to the first switch end K1 being electrically connected with the second switch end K2
Row control;When the cut-off signal of the output of main control module 61 is received from the first controlled end C1, the first switch end K1 is disconnected
With the electrical connection of the second switch end K2, the charging end CHR+ of the supply module 64 and being electrically connected for the battery core 65 are disconnected
Connect, disconnect the charge circuit that supply module 64 charges to battery core 65, stop the charging signals by the output of the supply module 64
Charging to the battery core 65;When the communications signals of the output of main control module 61 are received from the first controlled end C1, by described the
One switch terminals K1 are electrically connected with the second switch end K2, set up charging end (CHR+, CHR-) and the institute of the supply module 64
The electrical connection of battery core 65 is stated, the charging signals exported by the supply module 64 are charged to the battery core 65.
Optimize structure as the one of the 3rd switch module 63, as shown in figure 1, the 3rd switch module 63 has the 5th to open
End K5, the 6th switch terminals K6 and the 3rd controlled end C3 are closed, the 5th switch terminals K5 are corresponding with the 6th switch terminals K6 to meet institute
State the positive pole of battery core 65 and the second source end VC2 of the load blocks 66;3rd switch module 63 is from the described 3rd
The 5th switch terminals K5 are electrically connected with the 6th switch terminals K6 when controlled end C3 receives communications signals, forms battery core 65
Current supply circuit to the power supply of load blocks 66, the battery core 65 is discharged by the load blocks 66.
In embodiments of the present invention, the positive pole of the battery core 65 is connected with the earth terminal GND of the load blocks 66, and the 3rd
Switch module 63 is serially connected between the positive pole of the battery core 65 and the second source end VC2 of the load blocks 66, can be by the
Three switch modules 63 control whether to connect the current supply circuit that battery core 65 powers load blocks 66, decide whether by the battery core
65 pairs of load blocks 66 are powered.Particularly for the 3rd switch module 63, by the 3rd controlled end C3 to whether by described
Five switch terminals K5 are electrically connected with the 6th switch terminals K6 and are controlled;It is defeated main control module 61 is received from the 3rd controlled end C3
During the cut-off signal for going out, the 5th switch terminals K5 and the electrical connection of the 6th switch terminals K6 are disconnected, that is, disconnect the battery core
65 positive pole and the electrical connection of the second source end VC2 of the load blocks 66, disconnect what battery core 65 was powered to load blocks 66
Current supply circuit, stops the power supply by 65 pairs of load blocks 66 of the battery core;Master control is being received from the 3rd controlled end C3
During the communications signals of the output of module 61, the 5th switch terminals K5 are electrically connected with the 6th switch terminals K6, set up the electricity
The positive pole of core 65 and the electrical connection of the second source end VC2 of the load blocks 66, connect battery core 65 and load blocks 66 are powered
Current supply circuit, using the battery core 65 export the signal of telecommunication load blocks 66 are powered.
Pre-determined lower limit voltage is embodiments provided, is stopping charging battery core 65 and to battery core 65 by loading mould
During block 66 discharges, there is enough voltage in order to keep battery core 65, set the pre-determined lower limit voltage;Under hot operation
It is too fast to prevent battery core 65 from failing, the pre-determined lower limit voltage can be adjusted for distinct device, certainly, the pre-determined lower limit electricity
Pressure cannot be below to prevent battery core 65 from crossing the threshold voltage put and set.
Therefore, the main control module 61 provided in an embodiment of the present invention is additionally operable to:Voltage detection module described in real-time reception
The 67 pairs of battery cores 65 carry out the magnitude of voltage obtained by voltage detecting, when the magnitude of voltage is less than pre-determined lower limit voltage, to institute
The output communications signals of first switch module 62 are stated, and cut-off signal is exported to the 3rd switch module 63.Further, described first
Switch module 62 is additionally operable to:When the communications signals of the output of the main control module 61 are received, the supply module 64 pairs is connected
The charge circuit that the battery core 65 charges.Accordingly, the 3rd switch module 63 is additionally operable to:Receiving the main control module
During the cut-off signal of 61 outputs, the current supply circuit of 65 pairs of power supplies of the load blocks 66 of the battery core is disconnected.
And then be preferable to carry out as the present invention one, the main control module 61 is less than in the magnitude of voltage for detecting and sets in advance
Communications signals are exported from first control end CTL1 during voltage limit, and cut-off signal is exported from the 3rd control end CTL3;
Further, the first switch module 62 when communications signals are received from the first controlled end C1 by the first switch end K1
Electrically connect with the second switch end K2, the charge circuit that 64 pairs of battery cores 65 of the supply module charge is connected, by institute
State charging signals to charge the battery core 65.Accordingly, the 3rd switch module 63 is being received from the 3rd controlled end C3
The electrical connection of the 5th switch terminals K5 and the 6th switch terminals K6 is disconnected during to cut-off signal, described 65 pairs of institutes of battery core are disconnected
The current supply circuit of the power supply of load blocks 66 is stated, stops the power supply by 65 pairs of load blocks 66 of the battery core.
Specifically, during stopping charging battery core 65 and battery core 65 being discharged by load blocks 66, yet by
Voltage detection module 67 is persistently detected to the voltage of battery core 65, while the main control module 61 is received from the first test side T1
The magnitude of voltage for detecting of the output of voltage detection module 67, whether the magnitude of voltage detected described in real-time judge is less than default
Lower voltage limit, once the magnitude of voltage for detecting is less than pre-determined lower limit voltage, then connects from first control end CTL1 output
Messenger, and export cut-off signal from the 3rd control end CTL3.
Further, for the communications signals that main control module 61 is exported from first control end CTL1, the first switch mould
Block 62 can receive the communications signals from the first controlled end C1, and then set up the first switch end K1 with the second switch end
The electrical connection of K2, connects the charge circuit that 64 pairs of battery cores 65 of the supply module charge, defeated by the supply module 64
The charging signals for going out charge to the battery core 65.Accordingly, the disconnection that main control module 61 is exported from the 3rd control end CTL3
Signal, the 3rd switch module 63 can receive the cut-off signal from the 3rd controlled end C3, and then disconnect the 5th switch
End K5 and the electrical connection of the 6th switch terminals K6, disconnect the current supply circuit that the battery core is powered to the load blocks 66, stop
The only power supply of 65 pairs of load blocks 66 of the battery core.So, by the voltage of battery core 65 be maintained at the pre-determined lower limit voltage with
On, play a part of stand-by power supply.
Fig. 2 illustrates the preferred composition structure of one kind of battery core protection circuit provided in an embodiment of the present invention, and only illustrate with
The related part of the embodiment of the present invention.
For purposes of illustration only, by taking Fig. 2 as an example, battery core protection circuit provided in an embodiment of the present invention also includes second switch module
69;The second switch module 69 is connected between the supply module 64 and the load blocks 66.So, second can be passed through
Switch module 69 connects or disconnects the current supply circuit of 64 pairs of power supplies of the load blocks 66 of the supply module.
In addition, the second switch module 69 is also connected with the main control module 61;Accordingly, as the master control of the present embodiment
Module 61, the main control module 61 can be specifically for:In the temperature value persistently higher than described the of the preset upper limit temperature
In one persistent period, if the magnitude of voltage persistently reach more than second persistent period of the preset upper limit voltage it is described
Preset Time, then export cut-off signal to the first switch module 62, and to the 3rd switch module 63 communications signals are exported,
Also export cut-off signal to the second switch module 69.Correspondingly, the second switch module 69 is used for:It is described receiving
During the cut-off signal of the output of main control module 61, the current supply circuit of 64 pairs of power supplies of the load blocks 66 of the supply module is disconnected.
Optimize structure as the one of main control module 61, as shown in Fig. 2 the main control module 61 also has the second control end
CTL2, second control end CTL2 meets the second controlled end C2 of the second switch module 69;The main control module 61 is in institute
The temperature value for detecting is stated persistently higher than in first persistent period of the preset upper limit temperature, detect if described
Magnitude of voltage persistently reaches the Preset Time more than second persistent period of the preset upper limit voltage, then also from described the
Two control ends CTL2 export cut-off signal.
In the present embodiment, for the voltage or electric current needed for driving load circuit, if the signal of telecommunication of the output of battery core 65
Can meet, then when the second persistent period timing is to the Preset Time main control module 61 to second switch module
69 output cut-off signals, to disconnect the power supply of 64 pairs of load blocks 66 of the supply module, realization is carried out greatly to battery core 65
The repid discharge of electric current.
Specifically, to the timing of the second persistent period within the first persistent period, once the second persistent period timing is arrived
The Preset Time, then main control module 61 exports cut-off signal from first control end CTL1 immediately, while controlling from the 3rd
End CTL3 output communications signals, also simultaneously from the second control end CTL2 output cut-off signal;Stop passing through the supply module 64
Charging of the charging signals of output to the battery core 65, while stopping by the drive signal of the output of the supply module 64 to institute
The power supply of load blocks 66 is stated, while powering by 65 pairs of load blocks 66 of the battery core.
As a preferred second switch module 69 of the invention, as shown in Fig. 2 the second switch module 69 is connected on institute
State between the feeder ear SU+ of supply module 64 and the load blocks 66.In addition, the second switch module 69 has the 3rd to open
End K3, the 4th switch terminals K4 and the second controlled end C2 are closed, the 3rd switch terminals K3 are corresponding with the 4th switch terminals K4 to meet institute
State the feeder ear SU+ of supply module 64 and the first power end VC1 of the load blocks 66, the second control of the main control module 61
End CTL2 processed meets the second controlled end C2 of the second switch module 69.The second switch module 69 is from second controlled end
C2 disconnects the electrical connection of the 3rd switch terminals K3 and the 4th switch terminals K4 when receiving cut-off signal, that is, disconnect the confession
The feeder ear SU+ of electric module 64 and the first power end VC1 of the load blocks 66, and then disconnect described 64 pairs of institutes of supply module
The current supply circuit of the power supply of load blocks 66 is stated, stops the power supply by the drive signal to the load blocks 66.
Specifically, when cut-off signal is received from the second controlled end C2, the 3rd switch terminals K3 are disconnected with described the
The electrical connection of four switch terminals K4, that is, disconnect the feeder ear SU+ of the supply module 64 and the first power supply of the load blocks 66
The electrical connection of end VC1, the current supply circuit for disconnecting 64 pairs of power supplies of the load blocks 66 of the supply module stops by the confession
Power supply of the drive signal of the output of electric module 64 to the load blocks 66.If on the contrary, received from the second controlled end C2
Communications signals, the 3rd switch terminals K3 are electrically connected with the 4th switch terminals K4, set up the power supply of the supply module 64
The electrical connection of end SU+ and the first power end VC1 of the load blocks 66, forms described 64 pairs of load blocks of supply module
The current supply circuit of 66 power supplies, the drive signal exported by the supply module 64 is powered to the load blocks 66.
In embodiments of the present invention, the main control module 61 specifically for:In the magnitude of voltage for detecting less than default
During lower voltage limit, communications signals are exported to the first switch module 62, and letter is disconnected to the 3rd switch module 63 output
Number, also export communications signals to the second switch module 69;Accordingly, the second switch module 69 is additionally operable to:Receiving
To the output of the main control module 61 communications signals when, connect the power supply of 64 pairs of power supplies of the load blocks 66 of the supply module
Loop.
Used as a preferred main control module 61 of the invention, the real-time reception voltage detection module 67 of the main control module 61 is exported
Magnitude of voltage;The main control module 61 the magnitude of voltage be less than pre-determined lower limit voltage when, also from second control end CTL2
Output communications signals;Accordingly, the second switch module 69 from the second controlled end C2 receive communications signals when by institute
State the 3rd switch terminals K3 to electrically connect with the 4th switch terminals K4, connect described 64 pairs of load blocks 66 of supply module and power
Current supply circuit, the load blocks 66 are powered by the drive signal.
Specifically, during stopping charging battery core 65 and battery core 65 being discharged by load blocks 66, yet by
Voltage detection module 67 is persistently detected to the voltage of battery core 65, while the main control module 61 is received from the first test side T1
The magnitude of voltage for detecting of the output of voltage detection module 67, whether the magnitude of voltage detected described in real-time judge is less than default
Lower voltage limit, once the magnitude of voltage for detecting is less than pre-determined lower limit voltage, then connects from first control end CTL1 output
Messenger, and communications signals are received from second control end CTL2, and disconnect letter from the 3rd control end CTL3 output
Number;
Further, the first switch module 62 is receiving main control module 61 from the described first control by the first controlled end C1
During the communications signals of CTL1 outputs in end processed, the charging signals exported by the supply module 64 are charged to the battery core 65.Institute
State the 3rd switch module 63 and receiving what main control module 61 was exported from the 3rd control end CTL3 by the 3rd controlled end C3
During cut-off signal, stop the power supply by 65 pairs of load blocks 66 of the battery core.The voltage of battery core 65 is maintained at into this pre-
Set more than voltage limit, play a part of stand-by power supply.At the same time, for main control module 61 is from second control end CTL2
The communications signals of output, the second switch module 69 can receive the communications signals from the second controlled end C2, and then set up institute
The electrical connection of the 3rd switch terminals K3 and the 4th switch terminals K4 is stated, described 64 pairs of load blocks 66 of supply module is connected and is supplied
The current supply circuit of electricity, the drive signal exported by the supply module 64 is powered to the load blocks 66;Will be by battery core 65
Mode for the power supply of load blocks 66 switches back into the mode powered for load blocks 66 by supply module 64.
In an embodiment of the present invention, the 3rd switch terminals K3 and the 4th switch terminals K4 of second switch module 69 are always maintained at
Electrical connection;In the case of by battery core 65 to the electric discharge of load blocks 66, charging of the module of stopping power supply 64 to battery core 65, together
When battery core 65 is discharged by load blocks 66, but the drive signal for not stopping being exported by supply module 64 be load circuit supply
Electricity.But, main control module 61 can send adjust instruction to supply module 64, and supply module 64 drives according to the adjust instruction adjustment
The electric current of signal, voltage or power, the drive signal from after the 3rd control end CTL3 output adjustment.Under normal circumstances, power supply mould
Block 64 reduces the curtage of drive signal according to the adjust instruction so that the drive signal after adjustment can only drive division
The load circuit divided in load blocks 66, and another part load circuit in load blocks 66 is powered and is driven by battery core 65.
So, even if interior second persistent period timing is to Preset Time between continuing first, stopping is charged to battery core 65, battery core
65 by the fractional load circuit discharging in load blocks 66.
In a preferred embodiment, for first switch module 62, the second switch module 69 that the present invention is provided
Realized using electrical switch with the 3rd switch module 63.Used as a preferred implementation, the electrical switch includes but does not limit
In:One kind in the devices such as IGCT, transistor, field effect transistor, controllable silicon and relay or the on-off circuit being combined into.Make
For a preferred implementation, the also addition in first switch module 62, the switch module 63 of second switch module 69 and the 3rd respectively
There is physical switch, artificially can be controlled whether first switch end K1 and described by the physical switch in first switch module 62
Two switch terminals K2 are electrically connected, artificially can be controlled whether the 3rd switch terminals K3 by the physical switch in second switch module 69 and
The 4th switch terminals K4 electrical connection, artificially can be controlled whether the 5th switch by the physical switch in the 3rd switch module 63
End K5 is electrically connected with the 6th switch terminals K6.So, by above-mentioned physical switch can artificially to first switch module 62,
The switch module 63 of second switch module 69 and the 3rd carries out emergency flight control, and it is right to be realized by the physical switch of first switch module 62
Whether carry out emergency flight control, by the physical switch of second switch module 69 if the battery core 65 being charged by the charging signals
Realize powering the load blocks 66 by the drive signal to whether and carry out emergency flight control, by the 3rd switch module 63
Physical switch realize being powered by 65 pairs of load blocks 66 of the battery core to whether and carry out emergency flight control.
In an embodiment of the present invention, the main control module 61 includes timing module.In the present embodiment, for temperature is examined
The temperature value of the output of module 68 is surveyed, the timing module is persistently counted to the temperature value higher than the time of the preset upper limit temperature
When and obtain first persistent period;For the magnitude of voltage of the output of voltage detection module 67, the timing module is to the electricity
Pressure value is persistently more than the time timing of the preset upper limit voltage and obtains second persistent period.It is emphasized that described
Main control module 61 continues when the temperature value is less than the preset upper limit temperature by described the first of timing module record
Time is set to zero, continues described the second of timing module record when the magnitude of voltage is less than the preset upper limit voltage
Time is set to zero.
In the present embodiment, the timing module is used for the timing of the first persistent period, is additionally operable to the second persistent period
Timing.Specifically, after device power work, temperature detecting module 68 can persistently detect the temperature of battery core 65, and main control module 61 is held
It is continuous that the temperature value detected described in the output of temperature detecting module 68 is received from the second test side T2, once the temperature for detecting
Angle value is more than preset upper limit temperature, and timing module starts to the timing of the first persistent period;In the mistake to the timing of the first persistent period
Cheng Zhong, once the temperature value for detecting is less than preset upper limit temperature, by the first persistent period zero is set to;Then, described
When the temperature value for detecting reaches preset upper limit temperature again, restart the timing to the first persistent period.
In the same manner, voltage detection module 67 is persistently detected to the voltage of battery core 65;Main control module 61 continues from the first inspection
Survey the magnitude of voltage for detecting of the output of end T1 receiving voltages detection module 67, the magnitude of voltage detected described in real-time judge is
It is no more than preset upper limit voltage;Once the magnitude of voltage for detecting is more than preset upper limit voltage, timing module starts to second
Persistent period timing;During to the timing of the second persistent period, once the magnitude of voltage for detecting is less than preset upper limit
Voltage, by the second persistent period zero is set to;Then, when the magnitude of voltage for detecting reaches preset upper limit voltage again, weight
Newly start the timing to the first persistent period.
But it is emphasized that the main control module 61 obtains the first persistent period and the second persistent period from clock module,
Judged for the first persistent period whether more than Preset Time;When the first persistent period Preset Time was more than, second is determined whether
Whether persistent period is more than Preset Time, if the second persistent period is also greater than Preset Time, the ability of main control module 61 is from described the
One control end CTL1 exports cut-off signal, and exports communications signals from the 3rd control end CTL3;Only continue first
When time and the second persistent period exceed Preset Time simultaneously, the ability of main control module 61 disconnects from first control end CTL1 output
Signal, and export communications signals from the 3rd control end CTL3.
Used as one embodiment of the invention, the main control module 61 is realized by controller, and the controller can be:Single-chip microcomputer, ARM
Processor or PLD.At the same time, the timing that the timing module in the main control module 61 is also carried for controller
Module;Preferably, elapsed time clock is provided for the timing module by external crystal oscillation clock circuit.
Used as one embodiment of the invention, the main control module 61 is the hardware circuit being made up of electronic devices and components and chip.
It is by the comparison inside main control module 61 preferably for the judgement of the temperature value for detecting and temperature upper limit threshold value
Circuit realiration;In the same manner, it is logical for the judgement of the magnitude of voltage for detecting and upper voltage limit threshold value or lower voltage limit threshold value
What the comparison circuit crossed inside main control module 61 was realized.Meanwhile, the clock module is also to be made up of timing chip and peripheral circuit
Timing circuit;Then it is by timing circuit reality for whether the first persistent period or the second persistent period reach Preset Time
Existing;As a specific embodiment, first signal is exported when the first persistent period Preset Time was reached, held second
Continuous time exports a secondary signal when reaching Preset Time, main control module 61 be sequentially received first signal and this second
Just from first control end CTL1 output cut-off signal during signal, and communications signals are exported from the 3rd control end CTL3.
It should be noted that, battery core protection circuit provided in an embodiment of the present invention and battery core guard method can mutually be suitable for.It is logical
The method and step that Fig. 3 shows battery core guard method is crossed, and the part related to the embodiment of the present invention is only shown.
A kind of battery core guard method provided in an embodiment of the present invention, such as Fig. 3, the battery core guard method includes:
S1, obtains the magnitude of voltage and temperature value of battery core;
S2, it is determined that within the temperature value the first persistent period persistently higher than preset upper limit temperature, if the voltage
Value persistently reaches Preset Time more than the second persistent period of preset upper limit voltage, then the battery core is discharged, wherein, institute
Stated for the first persistent period more than or equal to the Preset Time.
On basis based on the battery core guard method shown in Fig. 3, Fig. 4 is optimized to the battery core guard method, and
The part related to the embodiment of the present invention is shown.
In an embodiment of the present invention, as shown in figure 4, the battery core guard method also includes:
S3, when the magnitude of voltage is less than pre-determined lower limit voltage, is charged to the battery core.
In an embodiment of the present invention, the battery core guard method also includes:
When the temperature value is less than the preset upper limit temperature, first persistent period is set to into zero;
When the magnitude of voltage is less than the preset upper limit voltage, second persistent period is set to into zero.
It should be noted that, battery core protection circuit provided in an embodiment of the present invention and battery core guard method can mutually be suitable for.Need
Illustrate, in the battery core protection circuit that another battery core guard method provided in an embodiment of the present invention is used, first switch
Module 62 is serially connected between supply module 64 and battery core 65, can be controlled whether by supply module 64 by first switch module 62
The charging signals of output charge to battery core 65;With the 3rd switch module 63 is serially connected between battery core 65 and load blocks 66, can be led to
Cross the 3rd switch module 63 to control whether to power load blocks 66 by battery core 65;And, second switch module 69 is connected on
Between supply module 64 and load blocks 66, can control whether that by supply module 64 be load mould by second switch module 69
Block 66 is powered.Battery core guard method provided in an embodiment of the present invention includes:
A11, supply module 64 accesses the signal of telecommunication, and the signal of telecommunication to accessing carries out signal adjustment and adjusts out driving letter respectively
Number and charging signals, export the drive signal to load blocks 66 to drive the load blocks 66 to work, it is defeated to battery core 65
Go out the charging signals to charge the battery core 65;
A12, voltage detection module 67 detects the voltage of the battery core 65, and the voltage detected to the output of main control module 61
Value;
A13, temperature detecting module 68 detects the temperature of the battery core 65, and exports what is detected to the main control module 61
Temperature value;
A14, the main control module 61 receives the temperature value for detecting of the output of the temperature detecting module 68, receives
The magnitude of voltage for detecting of the output of the voltage detection module 67, is higher than persistently on default in the temperature value for detecting
If the magnitude of voltage for detecting persistently continues more than the second of preset upper limit voltage in the first persistent period of limit temperature
Between reach Preset Time, then to first switch module 62 export cut-off signal, and to the 3rd switch module 63 output connection letter
Number;
A15, the first switch module 62 disconnects the supply module 64 when cut-off signal is received with the battery core
65 electrical connection, to stop the charging by the charging signals of the output of the supply module 64 to the battery core 65;
A16, the 3rd switch module 63 is when communications signals are received by the battery core 65 and the load blocks 66
Electrical connection, to be powered by 65 pairs of load blocks 66 of the battery core.
On the basis of above-mentioned battery core guard method, in a preferred embodiment, the battery core guard method is also
Including:
A21, the main control module 61 is opened when the magnitude of voltage for detecting is less than pre-determined lower limit voltage to described first
The output communications signals of module 62 are closed, and cut-off signal is exported to the 3rd switch module 63;
A22, the first switch module 62 is when communications signals are received by the first switch end K1 and described second
Switch terminals K2 are electrically connected, to be charged to the battery core 65 by the charging signals;
A23, the 3rd switch module 63 disconnects the battery core 65 when cut-off signal is received with the load blocks
66 electrical connection, to stop the power supply by 65 pairs of load blocks 66 of the battery core.
On the basis of above-mentioned battery core guard method, in a preferred embodiment, the battery core guard method is also
Including:
The main control module 61 is in the temperature value for detecting persistently higher than described the first of the preset upper limit temperature
In persistent period, if the magnitude of voltage for detecting persistently reaches more than second persistent period of the preset upper limit voltage
To the Preset Time, then also cut-off signal is exported to second switch module 69;
The second switch module 69 disconnects the supply module 64 when cut-off signal is received with the load blocks
66 electrical connection, to stop the power supply by the drive signal of the output of the supply module 64 to the load blocks 66.
On the basis of above-mentioned battery core guard method, in a preferred embodiment, the battery core guard method is also
Including:
The main control module 61 the magnitude of voltage for detecting be less than pre-determined lower limit voltage when, also to the second switch
Module 69 exports communications signals;
The second switch module 69 is when communications signals are received by the supply module 64 and the load blocks 66
The load blocks 66 are powered by electrical connection with the drive signal exported by the supply module 64.
On the basis of above-mentioned battery core guard method, in a preferred embodiment, the battery core guard method is also
Including:
The timing module that the main control module 61 includes, is higher than persistently the preset upper limit to the temperature value for detecting
The time timing of temperature simultaneously obtains first persistent period, and to the magnitude of voltage for detecting the preset upper limit is persistently more than
The time timing of voltage simultaneously obtains second persistent period;
The main control module 61 is when the temperature value for detecting is less than the preset upper limit temperature by the timing mould
First persistent period of block record is set to zero;
The main control module 61 is when the magnitude of voltage for detecting is less than the preset upper limit voltage by the timing mould
Second persistent period of block record is set to zero.
Above content is to combine specific preferred implementation further description made for the present invention, it is impossible to assert
The present invention be embodied as be confined to these explanations.For general technical staff of the technical field of the invention,
Some equivalent substitutes or obvious modification are made on the premise of without departing from present inventive concept, and performance or purposes are identical, all should
It is considered as belonging to the scope of patent protection that the present invention is determined by the claims submitted to.
Claims (8)
1. a kind of battery core protection circuit, including supply module, load blocks, voltage detection module, temperature detecting module and battery core,
The battery core connects respectively with the supply module, the load blocks, the voltage detection module and the temperature detecting module
Connect, it is characterised in that the battery core protection circuit also includes main control module, first switch module and the 3rd switch module;It is described
First switch module is connected between the supply module and the battery core, the 3rd switch module be connected to the battery core with
Between the load blocks, the main control module respectively with the voltage detection module, the temperature detecting module, described first
Switch module and the 3rd switch module connect;
The main control module is used for:Receive the voltage that the voltage detection module carries out obtained by voltage detecting to the battery core
Value, the reception temperature detecting module carries out the temperature value obtained by temperature detection to the battery core;The main control module is also used
In:It is determined that within the temperature value the first persistent period persistently higher than preset upper limit temperature, if the magnitude of voltage continues greatly
Preset Time is reached in the second persistent period of preset upper limit voltage, then exports cut-off signal to the first switch module, and
Communications signals are exported to the 3rd switch module;
The first switch module is used for:When the cut-off signal of the main control module output is received, the power supply mould is disconnected
The charge circuit that block charges to the battery core;
3rd switch module is used for:When the communications signals of the main control module output are received, the battery core pair is connected
The current supply circuit of the power load modules.
2. battery core protection circuit as claimed in claim 1, it is characterised in that
The main control module is additionally operable to:When the magnitude of voltage is less than pre-determined lower limit voltage, to first switch module output
Communications signals, and export cut-off signal to the 3rd switch module;
The first switch module is additionally operable to:When the communications signals of the main control module output are received, the power supply is connected
The charge circuit that module charges to the battery core;
3rd switch module is additionally operable to:When the cut-off signal of the main control module output is received, the battery core is disconnected
Current supply circuit to the power load modules.
3. battery core protection circuit as claimed in claim 1 or 2, it is characterised in that the battery core protection circuit also includes second
Switch module;The second switch block coupled in series between the supply module and the load blocks, and with the master control mould
Block connects;
The main control module specifically for:When the temperature value persistently continues higher than described the first of the preset upper limit temperature
It is interior, if the magnitude of voltage persistently reaches described default more than second persistent period of the preset upper limit voltage
Between, then cut-off signal is exported to the first switch module, communications signals are exported to the 3rd switch module, also to described the
Two switch modules export cut-off signal;
The second switch module is used for:When the cut-off signal of the main control module output is received, the power supply mould is disconnected
Current supply circuit of the block to the power load modules.
4. battery core protection circuit as claimed in claim 3, it is characterised in that the main control module specifically for:In the electricity
When pressure value is less than pre-determined lower limit voltage, communications signals are exported to the first switch module, and it is defeated to the 3rd switch module
Go out cut-off signal, also export communications signals to the second switch module;
The second switch module is additionally operable to:When the communications signals of the main control module output are received, the power supply is connected
Current supply circuit of the module to the power load modules.
5. battery core protection circuit as claimed in claim 1 or 2, it is characterised in that the main control module includes timing module;
The timing module is used for:To the temperature value persistently higher than the preset upper limit temperature time timing and obtain described
First persistent period, to the magnitude of voltage persistently more than the preset upper limit voltage time timing and obtain described second continue
Time;
The main control module is additionally operable to:The timing module is recorded when the temperature value is less than the preset upper limit temperature
First persistent period is set to zero, records the timing module when the magnitude of voltage is less than the preset upper limit voltage
Second persistent period is set to zero.
6. a kind of battery core guard method, it is characterised in that the battery core guard method includes:
Obtain the magnitude of voltage and temperature value of battery core;
It is determined that within the temperature value the first persistent period persistently higher than preset upper limit temperature, if the magnitude of voltage continues greatly
Preset Time is reached in the second persistent period of preset upper limit voltage, is then controlled the battery core and is discharged, wherein, described first
Persistent period is more than or equal to the Preset Time.
7. battery core guard method as claimed in claim 6, it is characterised in that the battery core guard method also includes:
When the magnitude of voltage is less than pre-determined lower limit voltage, the battery core is charged.
8. battery core guard method as claimed in claims 6 or 7, it is characterised in that the battery core guard method also includes:
When the temperature value is less than the preset upper limit temperature, first persistent period is set to into zero;
When the magnitude of voltage is less than the preset upper limit voltage, second persistent period is set to into zero.
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CN105680422B (en) * | 2016-04-07 | 2018-06-15 | 无锡中感微电子股份有限公司 | Improved battery protects circuit and system |
CN108235702B (en) | 2016-10-09 | 2022-01-14 | 深圳市道通智能航空技术股份有限公司 | Cloud deck, unmanned aerial vehicle and control method thereof |
CN109478789A (en) * | 2016-10-13 | 2019-03-15 | 深圳市道通智能航空技术有限公司 | A kind of charging circuit and device |
CN107947328A (en) * | 2017-11-28 | 2018-04-20 | 浙江力俭新能源科技有限公司 | A kind of power supply unit of sustainable power supply |
CN117458424B (en) * | 2023-11-09 | 2024-06-25 | 睿尔曼智能科技(北京)有限公司 | Automatic power supply switching device, power supply control system and control method |
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