CN105529754B - A kind of battery pack and its charging method and electric tool using the battery pack - Google Patents
A kind of battery pack and its charging method and electric tool using the battery pack Download PDFInfo
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- CN105529754B CN105529754B CN201410514417.XA CN201410514417A CN105529754B CN 105529754 B CN105529754 B CN 105529754B CN 201410514417 A CN201410514417 A CN 201410514417A CN 105529754 B CN105529754 B CN 105529754B
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- 230000005540 biological transmission Effects 0.000 claims description 37
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- 230000005611 electricity Effects 0.000 claims description 16
- 238000004891 communication Methods 0.000 claims description 5
- 238000002955 isolation Methods 0.000 claims description 4
- 238000012163 sequencing technique Methods 0.000 claims description 4
- 230000020169 heat generation Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 10
- 230000033228 biological regulation Effects 0.000 description 5
- 102100031699 Choline transporter-like protein 1 Human genes 0.000 description 4
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- 101000940912 Homo sapiens Choline transporter-like protein 1 Proteins 0.000 description 4
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- 101000889279 Homo sapiens Choline transporter-like protein 3 Proteins 0.000 description 2
- 101000889282 Homo sapiens Choline transporter-like protein 4 Proteins 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
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- 238000001914 filtration Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 241000125205 Anethum Species 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000010277 constant-current charging Methods 0.000 description 1
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- 229910052738 indium Inorganic materials 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 229910052987 metal hydride Inorganic materials 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The present invention provides a kind of battery packs, including wireless power source access unit；Cable power access unit；Signal detection module；At least one rechargeable battery；Charging detecting circuit；Control unit, the access state of cable power or wireless power source that control unit can be detected according to the signal detection module is managed power channel, described control unit further includes battery monitoring module, and control unit obtains battery parameter from charging detecting circuit using battery monitoring module and controls the electric power output of cable power or wireless power source to provide suitable electric power to rechargeable battery.The present invention also provides a kind of charging method to battery pack charging and using the electric tool of the battery pack.Battery pack provided by the invention has the function of no matter access using cable power or wireless power source from filling, and can be controlled by battery pack electric power output, while charging without carrying various chargers to battery pack, simple to operate.
Description
Technical field
The present invention relates to a kind of battery pack and its charging method and using the electric tool of the battery pack.
Background technique
The existing electric tool by battery pack power supply is mainly connected by the either power supply of the charger with wireline interface
It connects device to charge, and uses battery pack since its cruising ability is limited, need frequently to carry out it replacement or in time charging.?
Many areas cannot in time charge to battery pack, therefore because environment or usage scenario limitation do not have power interface
It cannot be guaranteed that in particular surroundings and prolonged need of work.
On the other hand, due to features such as the nominal voltages of the chemical substance of the cell device in various battery packs, battery pack
It is not identical, it generally requires to match different charging equipments.So for the user, different battery packs is needed to buy
Different chargers, and carry it is very inconvenient, furthermore, it is also possible to the case where causing battery pack wrong plug charger, such as
Without identifying accordingly and protecting system in fruit charging equipment, similar maloperation will lead to the damage of battery pack, give user
Bring unnecessary loss.
Summary of the invention
It is somebody's turn to do the object of the present invention is to provide a kind of with the battery pack and its charging method of filling function certainly and use
The electric tool of battery pack.
To solve the above-mentioned problems, the present invention provides a kind of battery pack, the battery pack includes:
Wireless power source access unit, for wirelessling receive the electric power output from wireless power source；
Cable power access unit, for wiredly receiving the electric power output from cable power；
Signal detection module, for detecting the state of external cable power or wireless power source access；
At least one rechargeable battery, for storing electric energy and externally electric discharge；
Charging detecting circuit, for detecting the battery parameter of the rechargeable battery；And
Control unit, control unit can be according to the cable powers or wireless power source that the signal detection module detects
Access state is managed power channel, and described control unit further includes battery monitoring module, and control unit is supervised using battery
Control module obtains battery parameter from charging detecting circuit and controls the electric power output of cable power or wireless power source with to chargeable
Battery provides suitable electric power.
Further, the wireless power source includes wireless power transmission device, and the wireless power transmission device includes electricity
Power supply, the transmit circuit, transmitting coil of gas connection, the wireless power source access unit include being used to wirelessly receive from wireless
Power emitting device transmitting electromagnetic energy receiving coil and for receive electric power carry out rectification and electric power detection reception
Circuit module, can be between the wireless power source access unit transmitting coil and the wireless power transmission device receiving coil
Row power transmission and data communication.
Further, the wireless power transmission device can be carried out according to wireless power source access unit output power situation
Power adjust automatically.
Further, the charging detecting circuit is able to detect the voltage status of rechargeable battery, sends it to control
Unit, described control unit can be based on above-mentioned data and be transferred to charging control signal wirelessly by wireless power source access unit
Power emitting device, the wireless power transmission device being capable of work according to the charging control signal received to transmitting coil
Frequency and output power automatic adjustment.
Further, the cable power access unit includes the connector for connecting with cable power, described wired
Power supply is electrically connected by adapter and the connector, and the adapter includes the first control port, and the connector includes
The second control port connecting with first control port, described control unit pass through the first, second control port control
The output valve of the voltage output port of adapter processed.
Further, the adapter includes the transformer of electrical connection, feedback control loop, light-coupled isolation control circuit, PWM
Controller, MOSFET power switch tube.
Further, the charging detecting circuit includes voltage sampling circuit, current sampling circuit, temperature sampling circuit,
Described control unit can be adopted by charging detecting circuit battery pack current voltage, electric current and temperature to passing through matching network
Charging signals are exported to the control port of adapter, and control the charging process of adapter.
On the other hand, the present invention provides it is a kind of using at least one of cable power or wireless power source to battery pack into
The method of row charging, the wireless power source includes the wireless power transmission device for emitting electromagnetic energy, the cable power
Corded power output is electrically connected and provided by adapter and battery pack, and the method includes acting as follows:
Access cable power or wireless power source；
The access state for detecting power channel carries out selection to power channel and charges to rechargeable battery；
In charging process, the parameter of charging detecting circuit detection rechargeable battery sends it to control unit；
It selecting in cable power charging process, control unit exports charging control signal to adapter by matching network,
And control the charging process of adapter；
It selects in wireless power source charging process, control unit is transmitted charging control signal by wireless power source access unit
To wireless power transmission device, wireless power transmission device is according to the charging control signal received to the work frequency of transmitting coil
Rate and output power automatic adjustment.
Further, the charging detecting circuit is electrically connected between control unit and rechargeable battery, the charging inspection
Slowdown monitoring circuit includes voltage sampling circuit, current sampling circuit, temperature sampling circuit.
Further, described control unit has according to the access state of power channel according to the sequencing selection of access
The power channel of effect.
On the other hand, the present invention provides a kind of electric tool, and the electric tool is powered by above-mentioned battery pack.
Further, the battery pack is built in the electric tool.
It is provided by the invention to have the function of to fill battery pack and its charging method and the electric tool using the battery pack certainly,
No matter accessed, electric power output can be controlled by battery pack, without carrying using cable power or wireless power source
Various chargers charge to battery pack, simple to operate.
Detailed description of the invention
Fig. 1 is the schematic block circuit diagram of the charging system of the first embodiment of the invention；
Fig. 2 a, 2b are the schematic block circuit diagram of two different rectification circuits in embodiment of the present invention respectively；
Fig. 3 is the main view of the drill kind tool with battery pack of the first embodiment of the invention；
Fig. 4 is the charger for charging to the battery pack of drill kind tool of the first embodiment of the invention；
Fig. 5 is the schematic block circuit diagram for inventing the battery pack of second of embodiment；
Fig. 6 is the master of the drill kind tool and wireless power transmission device with battery pack of second of embodiment of the invention
View；
Fig. 7 is the schematic block circuit diagram of the charging system with automatic regulation function of the third embodiment of the invention；
Fig. 8 is the main view of the drill kind tool and charging unit built in the battery of the third embodiment of the invention；
Fig. 9 is the schematic block circuit diagram of the adapter in the third embodiment of the invention；
Figure 10 is the schematic block circuit diagram of the charging system of the 4th kind of embodiment of the invention；
Figure 11 a, 11b are the logic control chart of charging system of the present invention.
Specific embodiment
Further illustrate a specific embodiment of the invention with reference to the accompanying drawing.
It please referring to Fig.1 to Fig.3, Fig. 1 is the schematic block circuit diagram of the charging system 100 of the first embodiment of the invention,
Mark 110 represents wireless power transmission device in figure, it will be readily appreciated by those skilled in the art that wireless power transmission device packet
Power supply 111, transmit circuit 112 and transmitting coil 113 are included, specifically, wireless transmission coil 111 electrically connects with transmit circuit 112
It connects.Here power supply generally refers to AC power supplies, and after connecting with AC power supplies, (figure is not for the AC-DC module of the emitted circuit of AC power supplies
Show) DC power supply is converted into as other module for power supply in circuit.It should be appreciated that wireless charging technology is usually in the art
It is known, it is broadly divided into electromagnetic induction method and magnetic resonance mode.Electromagnetic induction method is by applying and being used for AC electric current
The transmit coil of wireless power transmission changes magnetic field, and generated and the variation due to magnetic field from adjacent receiving coil
Induced current charges the battery.In magnetic resonance mode, transmit coil is with specific frequency radiation field, if had and hair
The receiving coil of the identical frequency of the frequency of sending coil is close to transmit coil, then the energy that transmit coil is generated and due to resonance
It measures tunnel and receives electric power to provide electric power to battery, the present invention does not limit the concrete mode using wireless charging, that is to say, that
Wireless power can be carried out to wireless power source access unit using any one wireless charging mode.
120 represent power receiving system in Fig. 1 comprising two electric power access units are that wireless power source access is single respectively
Member 121 and cable power access unit 122, signal detection module 123, control unit 124 and charging circuit 125.
Wherein wireless power source access unit 121 includes receiving coil 1211 and receiving circuit module 1212.Receiving coil is used
To wirelessly receive the electromagnetic energy emitted from wireless power transmission device 110,1212 pairs of reception electric power of receiving circuit module
Rectification and electric power detection are carried out, and signal is passed into signal detection module 123.Specifically, receiving circuit module 1212 includes
Resonance circuit and rectification circuit (figure is not marked).Different rectifications is respectively indicated referring to Fig. 2 a and Fig. 2 b, Fig. 2 a and Fig. 2 b
The specific implementation of circuit, Fig. 2 a indicate can be used as exchange input by two diodes D1, D2 and two triode Q11
With Q12 composition full bridge rectifier, by control Q11 and Q12 CTL1, CTL2 signal, control Q11, Q12 open and
Input rectifying is realized in shutdown；If Q11, Q12 are simultaneously turned off, VOUT does not have voltage output；The wherein control of CTL1, CTL2
Signal processed is provided by control unit 124.Fig. 2 b indicates to can be used as being made of four triodes Q1, Q2, Q3, Q4 for exchange input
Full bridge rectifier, pass through control Q1, Q4 and Q2, Q3 CTL1, CTL4, CTL2, CTL3 signal, control Q1, Q2, Q3, Q4
Turn on and off, realize synchronous rectification；If Q1, Q2, Q3, Q4 are simultaneously turned off, VOUT does not have voltage output；CTL1,
The control signal of CTL2, CTL3, CTL4 are provided by control unit 124.
Wireless power source access unit 121 is opened using by the control rectifier bridge of control unit 124 in embodiments of the present invention
The mode of pass charges, and can reduce circuit thermal losses, improves charge efficiency.With increase new control switch after rectifier bridge
Pipe is compared, and the scheme of control rectification bridge switch can reduce number of elements, is reduced stand-by power consumption, is promoted charge efficiency.
Receiving coil 1211 is used to receive the electromagnetic energy of wireless power transmission device offer, and will be high by resonance circuit
Frequency stablizes sine wave and passes to rectification circuit.Rectification circuit is for rectifying high_frequency sine wave, by high-frequency stabilization sine wave
It is converted into direct current.The receiving circuit module 1212 can also include communication circuit module (not shown), be used to and chargeable electricity
Carry out data communication between pond 130 and wireless power transmission device 110, communication data can be battery wireless charging state and
Control instruction is also possible to other electrical characteristic parameters of battery.
Cable power access unit 122 includes connector 1221, for accessing corded power, the connector 1221 and outside
After power supply part connection, it can be transmitted electric power by control unit 124 to rechargeable battery 130.
Control unit 124 detects the state of cable power or wireless power source access, signal inspection by signal detection module 123
When survey module 123 detects electric power access, wakes up control unit 124 and carry out state-detection.Signal detection module 123 will sample electricity
Signal is input to control unit 124, and control unit 124 detects the access state of corded power and wireless power.If radio
Power first access and effectively, control unit 124 controls and receives the state of the semiconductor switch in circuit module 1212 in rectification circuit,
Selected supplying channels.There is controller MCU or other processors and storage unit (not shown) in control unit 124, deposit
There is the program code of battery charge control model in storage unit.It is executed by program, control unit 124 provides driving signal control
The switch state of semiconductor switch in rectification circuit processed controls charging circuit 125 when the switch is closed and fills to rechargeable battery 130
Electricity.When selecting wired paths power supply, the shutdown of control unit control switch K1 carries out electric power output.
Specifically, when wireless power accesses, receiving coil 1211 is coupled with transmitting coil 113, is applied into transmitting coil 113
Add alternating current, the electric field of variation generates magnetic field, and magnetic field generates electric current by the receiving coil 1211 of coupling.The electric current of generation is
Alternating current, alternating current are direct current sampled signal by the half-wave rectifying circuit and capacitor (not shown) copped wave of diode composition, are adopted
Sample signal is detected through signal detection module 123；If sampled signal reaches reservation threshold, this reservation threshold is some letter
Number section, control unit 124 determine that there are effective electric power inputs, otherwise determine that active power is not present, if input electric power is super
Reservation threshold is then alerted out, shutoff signal detection.
When corded power access, control unit 124 obtains sampling by a sampling resistor (not shown) and believes into a number row
Detection, if detection voltage reaches reservation threshold, this reservation threshold is some signal spacing, and control unit 124 determines exist
Otherwise active power input determines that active power is not present.
Preferably, control unit 124 controls electric power according to the sequencing of access according to the access state of power channel
Transmission channel.When one of electric power input is effective, controller MCU or other processors in control unit 124, choosing
The road Ze Gai electric power is powered.When two kinds of electric power are all effectively to access, control unit 124 is according to preset preferential power supply
Principle selects supplying channels；During normal power supply, after preferential supplying channels remove, control unit 124 can be by supplying channels
Other existing effective supplying channels are switched to, specific charging process is as follows: when battery temperature is in allowed limits and electric
When cell voltage is greater than permission pre-charge pressure, charging circuit 125, which controls voltage output, fills rechargeable battery 130 into constant current
Power mode；When cell voltage is more than or equal to setting value, charging circuit 125, which controls voltage output, enters rechargeable battery 130
Constant-voltage charge mode, while the temperature and electric current of battery are detected, terminate to charge if battery current is less than preset value, fill above
Electric process is well known to those skilled in the art, and is not detailed herein.
It is appreciated that can also select in other ways wired or wireless power channel, wherein control unit 124
By detecting the charging current of rechargeable battery 130, so that the charged state of rechargeable battery 130 is detected, it is wireless when detecting
The state that power supply is charging the battery, in this state, if battery is connected to cable power, control unit at this time
The power channel of 124 disconnection of wireless power supplys, thus using the wired charging power channel pair that can quickly charge the battery
Rechargeable battery 130 charges.In another embodiment, pass through the charged state of detection wireless power source and cable power
Or connection, comparing selection wireless power source and cable power, one of them is charged the battery, and passes through the optimal charging side of selection
Formula charges to rechargeable battery 130, so as to be charged the battery always with preferred state.
Rechargeable battery 130 in present embodiment can provide electric power output, chargeable electricity here for electric tool
Pond can be nickel-cadmium cell, nickel-metal hydride battery either lithium battery.The electric tool can be dill/hammer, saw class or garden
Any one in tool-class, is also possible to other kinds of electric tool well-known to those skilled in the art.Please join simultaneously
Fig. 3 and 4 are read, application of the charging system of corresponding the first embodiment of the present invention on electric tool 10, is a kind of brill here
Class tool contains rechargeable battery 130 in battery pack 11, and battery pack 11 is installed to electric tool by dismountable mode
On 10, the power receiving system 120 in corresponding present embodiment is a charger, which includes mentioned above wireless
Plant-grid connection unit 121 and cable power access unit 122, signal detection module 123, control unit 124 and charging circuit
125, therefore can be charged by least one of wired or wireless power channel to the battery pack 11 being mounted thereto.
Referring to Fig. 5, the circuit of the battery pack 21 with charging system 200 of second of embodiment of the corresponding present invention is former
Block diagram is managed, the difference with the first embodiment is second of embodiment by the circuit module in power receiving system 120
It is directly integrated into a battery pack 21, battery pack 21 supports corded power access and wireless power to access two kinds of charging modes.
Specifically, mark 210 represents wireless power transmission device in figure, with the wireless power transmission device 110 in embodiment one
Identical, wireless power transmission device 210 includes transmitting coil 213, and battery pack 21 includes wireless power source access unit 211 and wired
Plant-grid connection unit 212, signal detection module 213, control unit 214 and rechargeable battery 216, wherein wireless power source access is single
Member 211 at least contains receiving coil 2111 and receiving circuit module 2112, and cable power access unit includes connector 2121.On
It is identical as embodiment one to state the working principle of wired or wireless charging and logic control method used by battery pack 21, area
It is not that there is charge-discharge circuit 215 in battery pack 21, charge-discharge circuit 215 includes one identical with first embodiment
Charging circuit (not shown), the charging circuit are used to obtain electric energy simultaneously from wireless power source access unit or cable power access unit
To rechargeable battery charging 216, in addition, battery pack 21 can also externally be discharged by connector 2121, rechargeable battery
216 discharge condition can be detected and controlled by control unit 214.
Please refer to Fig. 6, the battery pack 31 with charging system 200 of second of embodiment of the corresponding present invention is in electricity
Application on power driven tools, corresponds to the battery pack 21 in present embodiment, and the battery pack 21 can be through dismountable mode
It is installed on electric tool 20, it is to be understood that battery pack 21 is also possible to be built in electric tool 20.
Please refer to Fig. 7 and Fig. 8, corresponding the third embodiment of the present invention has filling with automatic regulation function
The schematic block circuit diagram of electric system 300, the difference with first two embodiment are that the charging system 300 of present embodiment has
Automatic regulation function, specifically, above-mentioned charging system 300 is electrically connected between control unit 324 and rechargeable battery 326 to be had
Charging detecting circuit 325, in addition, further including battery monitoring module and charge and discharge control module (not shown), the control list
Member 324 includes a controller, and above-mentioned battery monitoring module and charge and discharge control module are integrated in the controller of control unit 324
In, in this way in charging, control unit 324 obtains the voltage of battery from charging detecting circuit 325 using battery monitoring module, electricity
Then stream, the parameters such as temperature generate correct charging method and charge the battery, wherein control unit 324 is controlled by MOSFET
The on-off of charging circuit.It is understood that battery monitoring module and charge and discharge control module also can be set in electric tool
In 30.Specifically, charging detecting circuit 325 further includes voltage sampling circuit, current sampling circuit, temperature sampling circuit, filling
Control unit 324 adopts to obtain chargeable electricity by voltage sampling circuit, current sampling circuit, temperature sampling circuit respectively in electric process
326 current voltage of pond, electric current and temperature finally obtain chargeable electricity to export charging signals to wired or wireless charhing unit
The output of voltage needed for pond 326 or electric current.
Referring to Fig. 8, the charging system with automatic regulation function of corresponding the third embodiment of the present invention exists
Application on electric tool 30, electric tool 30 include the battery pack 31 with rechargeable battery 326, built in the battery pack 31
In electric tool 30, wireless power transmission device 310 and wired adapter 330, wherein wireless power source access unit 321
Wireless power output is provided by wireless power transmission device 310, wireless power transmission device 310 includes power supply 311, transmit circuit
312 and transmitting coil 313 and supply control unit (not shown), wireless power source access unit 321 include receiving coil 3211
With receiving circuit module 3212, power transmission can be wherein carried out between transmitting coil 313 and receiving coil 3211 and data are logical
Letter.Specifically, charging detecting circuit 325 detects the voltage status of rechargeable battery 326, sends it to control unit 324, by
Charging control signal is transferred to wirelessly by data of the control unit 324 based on above-mentioned detection by wireless power source access unit 321
Power emitting device 310, the supply control unit of wireless power transmission device 310 is according to the control instruction received to emission lines
Working frequency and the output power automatic adjustment of circle 313, reach the charge requirement of wireless power source power supply unit 321.Compared to
The charge power of common electronic product, 31 its demand of battery pack of electric tool is higher, makes nothing using automatic regulation function
Linear heat generation rate emitter 310 can adjust output power according to the changes in demand of 321 output power of wireless power source access unit
It is small, so that output power and voltage keep stablizing, can largely meet the needs of users.
On the other hand, cable power access unit 322 provides corded power output by adapter 330, wherein adapter 330
Comprising positive and negative terminals and control terminal (not shown), the connector 3221 of cable power access unit 322 includes positive and negative terminals
And control terminal, when user selects corded power channel, adapter 330 is connected with battery pack 31, positive and negative terminals and control
Terminal processed is in contact with the positive and negative terminals of battery pack and control terminal respectively, and during the charging process, control unit 324 is adopted electric
31 current voltages, electric current and temperature are wrapped to export charging signals to the control terminal of adapter by matching network in pond, and
Control the charging process of adapter.When battery temperature in allowed limits and cell voltage be greater than allow pre-charge pressure when
It waits, the voltage output of control adapter 330 makes battery pack 31 enter constant current charging mode；When cell voltage is greater than preset value,
The voltage output of control adapter 330 makes battery pack 31 enter constant-voltage charge mode, while detecting temperature and electric current, if electric current
Then terminate to charge less than certain value.
As shown in Figure 9 is the schematic block circuit diagram of the adapter 330 in the third embodiment of the invention.Adapter
330 include transformer 331, feedback control loop 332, light-coupled isolation control circuit 333, PWM controller 334, MOSFET power switch
Pipe 335.Alternating current passes through EMI suppression circuit 337 and primary input filter circuit after inputting by power supply input circuit 336
338, using high voltage direct current is exported after secondary commutation output filter circuit after transformer 331, high voltage direct current flows through feedback
The loop that loop 332, light-coupled isolation control circuit 333, PWM controller 334 are constituted, control unit 324 pass through adapter 330
Control port inputs charging control signal to PWM controller 334, and pwm control circuit controls MOSFET power switch tube 335
Make the output of voltage or electric current needed for obtaining battery pack 31.Power supply input circuit 336 can be by fuse, negative temperature coefficient
The (not shown) such as resistance, varistor composition, so that when power source internal is abnormal, power input is not in big short
Road electric current.Dash current when power supply booting is reduced, while the surge voltage on incoming line can be absorbed, is prevented in power supply
By excessive pressure damages during portion, the current rectifying and wave filtering circuit in adapter 330 makes input voltage smothing filtering, filters out ripple electricity
Pressure provides metastable DC voltage for adapter 330.High frequency switching noise is filtered out simultaneously, improves the conduction of adapter
Characteristic.Referring to Fig. 10, the circuit theory frame of the wired or wireless charge-discharge system 400 of the 4th kind of embodiment of the corresponding present invention
Figure, compared with the third embodiment, the difference of present embodiment is the receiving circuit module of wireless power source access unit 421
Increase switch K2 between 4212 and control unit 424, thus control unit 424 by control switch K2 open and turn off into
And the electric power output of wireless power source access unit 421 is controlled, there is no need to control and receive rectification module in circuit module 4212
Semiconductor switch.It is understood that can also be directly controlled by the way of increasing switch K2 in first two embodiment
The electric power of wireless power source access unit exports.
The stream for controlling power transmission in embodiment of the present invention according to the access state of power channel is described more fully below
Journey.Figure 11 a show the logic control chart of charging system of the present invention, and the charging system is described in detail in combination with Figure 11 b below
The overall process of work.
Firstly, user can access wired or wireless power supply, in step S02, signal according to operating condition in step S01
Detection module detects electric power access state, in step S03, judges whether to detect electric signal, such as be not detected
Return step S02 is continued to test, and after such as detecting electric signal, is then entered judgment step S04, is judged whether the electric power of access has
Effect specifically can pass through the various characteristics parameter of mark access way feature, such as mark level, impedance, marker pulses string
Judge whether access is effective.If access is invalid, detecting step S02 is returned, charging operations are not executed.In specific product also
It can remind user that charging can not be carried out by modes such as indicator light, voice reminders, access is invalid.
If access is effectively, next step is entered, selection is carried out to power channel and is charged to battery, here in conjunction with
Power channel selection is described in detail in Figure 11 b, in step S04, determines whether electric power is effective, specifically determines whether volume
Fixed configuration connection, if result whether, enters step S13, no operation；If result be it is yes, enter channel selecting step
Rapid A to G, determines which power channel is effective in specific wired charging unit and wireless charging unit by control unit,
In step S05, effective port number N is determined, if only one power channel is effective, enters step S06, this is led to
Road is set as the power channel for allowing to power；If two power channels are all effective, step S07 is entered, compares two
The turn-on time of person selects the power channel first accessed, is re-introduced into setting procedure S06 after channel is selected, by what is selected
Effective channel is configured to effective channel status and is powered, at this point, the power channel timing accessed afterwards is in place but does not allow to supply
Electricity.During the charging process, if the power channel disconnection of priority access connects, other effective power channels is configured and are supplied
Electricity.After selecting effective supplying channels, step S09 is entered, is powered by the state of control unit control switch.
Specifically, being powered in first three embodiment in selection wireless power source access unit 121,221,321
When, the switch that control unit 124,224,324 controls in corresponding rectification circuit is powered, in the 4th kind of embodiment
In, the on and off control wireless power source access unit 421 of 424 control switch K2 of control unit is powered.It selects wired
When channel powers, above embodiment carries out electric power output by control unit control switch K1.The power channel of selection accesses
Afterwards, which charges to rechargeable battery according to charge model by charging circuit.
Selected effective supplying channels of step A to G simultaneously carry out in power supply process, further include step S09, in step S09,
The electricity of control module meeting real-time detection rechargeable battery in control unit or charging circuit, determines electricity in step slo
Whether pond electricity reaches rated value, once battery capacity reaches rated value, then enters step S11 and stops charging；Otherwise, it is walked
Rapid S12 continues to charge.In addition, rechargeable battery will stop charging if artificially removed electric power in charging process.It can manage
Solution can carry out corresponding charge protection design, such as temperature according to the needs of actual design for battery and circuit characteristic
Protection, overcurrent protection, overvoltage protection etc..
Although the present invention has been disclosed as a preferred embodiment, however, it is not to limit the invention.Skill belonging to the present invention
Has usually intellectual in art field, without departing from the spirit and scope of the present invention, when can be used for a variety of modifications and variations.Cause
This, the scope of protection of the present invention is defined by those of the claims.
Claims (11)
1. a kind of battery pack, the battery pack include:
Wireless power source access unit, for wirelessling receive the electric power output from wireless power source；
Cable power access unit, for wiredly receiving the electric power output from cable power；
Signal detection module, for detecting the state of external cable power or wireless power source access；
At least one rechargeable battery, for storing electric energy and externally electric discharge；
Charging detecting circuit, for detecting the battery parameter of the rechargeable battery；And
Control unit, control unit can be according to the accesses for the cable power or wireless power source that the signal detection module detects
State is managed power channel, and described control unit further includes battery monitoring module, and control unit utilizes battery cell monitoring mould
Block obtains battery parameter from charging detecting circuit and controls the electric power output of cable power or wireless power source with to rechargeable battery
Suitable electric power is provided；
Described control unit judges whether there is active power input according to the signal of the signal detection module；It is described effective
Electric power is the electric power of nominal configuration connection；When the electric power of input is effective, described control unit according to access sequencing
Control the transmission channel of electric power.
2. battery pack according to claim 1, which is characterized in that the wireless power source includes wireless power transmission device,
The wireless power transmission device includes the power supply of electrical connection, transmit circuit, transmitting coil, the wireless power source access unit
Including being used to wirelessly receive the receiving coil of the electromagnetic energy from the transmitting of wireless power transmission device and for electric to receiving
Power carries out the receiving circuit module of rectification and electric power detection, the wireless power source access unit transmitting coil and the wireless power
Power transmission and data communication are able to carry out between emitter receiving coil.
3. battery pack according to claim 2, which is characterized in that the wireless power transmission device can be according to radio
Source access unit output power situation carries out power adjust automatically.
4. battery pack according to claim 3, which is characterized in that the charging detecting circuit is able to detect rechargeable battery
Voltage status, send it to control unit, described control unit can be based on above-mentioned data and by wireless power source access singly
Charging control signal is transferred to wireless power transmission device by member, and the wireless power transmission device can be filled according to what is received
Electric control signal automatically adjusts the working frequency and output power of transmitting coil.
5. battery pack according to claim 1, which is characterized in that the cable power access unit include for it is wired
The connector of power supply connection, the cable power are electrically connected by adapter and the connector, and the adapter includes the
One control port, the connector include the second control port connecting with first control port, and described control unit is logical
Cross the output valve of the voltage output port of the first, second control port control adapter.
6. battery pack according to claim 5, which is characterized in that the adapter includes the transformer, anti-of electrical connection
Present loop, light-coupled isolation control circuit, PWM controller, MOSFET power switch tube.
7. battery pack according to claim 6, which is characterized in that the charging detecting circuit include voltage sampling circuit,
Current sampling circuit, temperature sampling circuit, described control unit can be adopted by charging detecting circuit battery pack current voltage,
Electric current and temperature control the charging of adapter to export charging signals to the control port of adapter by matching network
Process.
8. a kind of charge to the battery pack described in claim 1 using at least one of cable power or wireless power source
Method, the wireless power source includes the wireless power transmission device for emitting electromagnetic energy, and the cable power passes through suitable
Orchestration and battery pack are electrically connected and provide corded power output, and the method includes acting as follows:
Access cable power or wireless power source；
Whether the cable power or wireless power source for judging access are active powers；The active power is the electricity of nominal configuration connection
Power；
According to the validity of the cable power of the access and/or the electric power of wireless power source, power channel is selected；
In the cable power of the access and effective electric power of wireless power source, according to the sequencing of access to power channel
It is selected；
It is charged by selected power channel to rechargeable battery；
In charging process, the parameter of charging detecting circuit detection rechargeable battery sends it to control unit；
It selecting in cable power charging process, control unit exports charging control signal to adapter by matching network, and
Control the charging process of adapter；
It selects in wireless power source charging process, charging control signal is transferred to nothing by wireless power source access unit by control unit
Linear heat generation rate emitter, wireless power transmission device according to the charging control signal received to the working frequency of transmitting coil with
And output power automatic adjustment.
9. according to the method described in claim 8, it is characterized in that, the charging detecting circuit be electrically connected in control unit and
Between rechargeable battery, the charging detecting circuit includes voltage sampling circuit, current sampling circuit, temperature sampling circuit.
10. a kind of electric tool, which is characterized in that electric tool battery as described in any one of claim 1 to 7
Packet power supply.
11. electric tool according to claim 10, which is characterized in that the battery pack is built in the electric tool.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410514417.XA CN105529754B (en) | 2014-09-29 | 2014-09-29 | A kind of battery pack and its charging method and electric tool using the battery pack |
| US14/863,028 US20160094080A1 (en) | 2014-09-29 | 2015-09-23 | Charging system and charging method thereof and battery pack |
| DE102015116397.7A DE102015116397A1 (en) | 2014-09-29 | 2015-09-28 | Charging system and associated charging method, battery pack |
| AU2015101407A AU2015101407A4 (en) | 2014-09-29 | 2015-09-28 | Charging system and charging method thereof and battery pack |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410514417.XA CN105529754B (en) | 2014-09-29 | 2014-09-29 | A kind of battery pack and its charging method and electric tool using the battery pack |
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| CN105529754A CN105529754A (en) | 2016-04-27 |
| CN105529754B true CN105529754B (en) | 2019-01-04 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106910953B (en) * | 2017-04-10 | 2020-02-07 | 宁波微鹅电子科技有限公司 | Battery pack and wireless charging system |
| DE102017122804A1 (en) * | 2017-09-29 | 2019-04-04 | Fresenius Medical Care Deutschland Gmbh | Medical pump drive, pump and blood treatment device |
| CN109861368A (en) * | 2017-11-30 | 2019-06-07 | 苏州宝时得电动工具有限公司 | Power supply unit and power tool with same |
| CN108199434A (en) * | 2018-01-10 | 2018-06-22 | 上海展扬通信技术有限公司 | Charging method, double-purpose charger and storage medium |
| WO2020056709A1 (en) * | 2018-09-21 | 2020-03-26 | 深圳市德品通电子有限公司 | Portable power supply device and power supply management method thereof |
| CN111049206A (en) * | 2018-10-15 | 2020-04-21 | 中兴通讯股份有限公司 | Charging control method and device, equipment and storage medium |
| DE102019204362A1 (en) * | 2019-03-28 | 2020-10-01 | Robert Bosch Gmbh | Method for adaptive rapid charging of a battery pack |
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