CN105529754A - Cell packet and charging method thereof, and electric tool employing cell packet - Google Patents
Cell packet and charging method thereof, and electric tool employing cell packet Download PDFInfo
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- CN105529754A CN105529754A CN201410514417.XA CN201410514417A CN105529754A CN 105529754 A CN105529754 A CN 105529754A CN 201410514417 A CN201410514417 A CN 201410514417A CN 105529754 A CN105529754 A CN 105529754A
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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 invention provides a cell packet. The cell packet comprises a wireless power source access unit, a wired power source access unit, a signal detection module, at least one chargeable cell, a charging detection circuit and a control unit, wherein an electric power channel can be managed by the control unit according to an access state of a wireless power source or a wired power source detected by the signal detection module, the control unit further comprises a cell monitoring module, and the cell monitoring module is utilized by the control unit to acquire cell parameters from the charging detection circuit and control electric power output of the wired power source or the wireless power source for providing proper electric power for the chargeable cell. The invention further provided a charging method for the cell packet and an electric tool employing the cell packet. The cell packet has the self-charging function and can control electric power output through employing a wireless power source access mode or a wired power source access mode, carrying various types of chargers for charging the cell packet is not required, and operation is simple and convenient.
Description
Technical field
The present invention relates to a kind of power brick and charging method thereof and adopt the electric tool of this power brick.
Background technology
Existing electric tool of being powered by power brick charges mainly through the charger or power connector with wireline interface, and adopt power brick due to its flying power limited, need frequent change it or charges in time.In a lot of area, because environment or use scenes restriction do not possess power interface, can not charge to power brick in time, therefore can not ensure at particular surroundings and long need of work.
On the other hand, because the features such as the chemical substance of the cell device in various power brick, the nominal voltage of power brick are not identical, often need to mate different charging devices.So for the user; different power brick is needed to buy different chargers; and carry very inconvenient; in addition; also may cause the situation of power brick wrong plug charger; identify and protection system if not corresponding in charging device, similar misoperation can cause the damage of power brick, brings unnecessary loss to user.
Summary of the invention
The object of the present invention is to provide a kind of with certainly to fill the power brick of function and charging method thereof and adopt the electric tool of this power brick.
In order to solve the problem, the invention provides a kind of power brick, described power brick comprises:
Radio source access unit, exports for the electric power wirelessly received from radio source;
Cable power access unit, exports for the electric power received through a cable from cable power;
Signal detection module, for detecting the state of outside cable power or radio source access;
At least one rechargeable battery, for storage of electrical energy and externally electric discharge;
Charging detecting circuit, for detecting the battery parameter of described rechargeable battery; And
Control unit, the access state of the cable power that control unit can detect according to described signal detection module or radio source manages power channel, described control unit also comprises battery cell monitoring module, control unit utilize battery cell monitoring module from charging detecting circuit obtain battery parameter and control cable power or radio source electric power export to provide suitable electric power to rechargeable battery.
Further, described radio source comprises wireless power transmission device, described wireless power transmission device comprises power supply, radiating circuit, the transmitting coil of electrical connection, described radio source access unit comprises the receiving coil for wirelessly receiving the electromagnetic energy launched from wireless power transmission device and the receiving circuit module for carrying out rectification and electric power detection to reception electric power, can carry out power delivery and data communication between described radio source access unit transmitting coil and described wireless power transmission device receiving coil.
Further, described wireless power transmission device can carry out power according to radio source access unit power output situation and automatically adjusts.
Further, described charging detecting circuit can detect the voltage status of rechargeable battery, send it to control unit, charging control signal can be passed to wireless power transmission device based on above-mentioned data by radio source access unit by described control unit, and described wireless power transmission device can regulate the operating frequency of transmitting coil and power output automatically according to the charging control signal received.
Further, described cable power access unit comprises the connector for being connected with cable power, described cable power is electrically connected by adapter and described connector, described adapter comprises the first control port, described connector comprises the second control port be connected with described first control port, and described control unit controls the output valve of the voltage output end mouth of adapter by first, second control port described.
Further, described adapter comprises transformer, feedback control loop, light-coupled isolation control circuit, PWM controller, the MOSFET power switch pipe of electrical connection.
Further, described charging detecting circuit comprises voltage sampling circuit, current sampling circuit, temperature sampling circuit, described control unit can adopt to obtain power brick current voltage, electric current and temperature thus export charging signals to the control port of adapter by matching network by charging detecting circuit, and controls the charging process of adapter.
On the other hand, the invention provides a kind of method utilizing at least one in cable power or radio source to charge to power brick, described radio source comprises the wireless power transmission device for launching electromagnetic energy, described cable power is electrically connected by adapter and power brick and provides corded power to export, and described method comprises following action:
Access cable power or radio source;
Detect the access state of power channel, power channel is selected and rechargeable battery is charged;
In charging process, the parameter that charging detecting circuit detects rechargeable battery sends it to control unit;
Select in cable power charging process, control unit exports charging control signal by matching network to adapter, and controls the charging process of adapter;
Select in radio source charging process, charging control signal is passed to wireless power transmission device by radio source access unit by control unit, and wireless power transmission device regulates the operating frequency of transmitting coil and power output automatically according to the charging control signal received.
Further, described charging detecting circuit is electrically connected between control unit and rechargeable battery, and described charging detecting circuit comprises voltage sampling circuit, current sampling circuit, temperature sampling circuit.
Further, described control unit, according to the access state of power channel, selects effective power channel according to the sequencing of access.
On the other hand, the invention provides a kind of electric tool, described electric tool is powered by above-mentioned power brick.
Further, described power brick is built in described electric tool.
Provided by the invention have from filling function power brick and charging method thereof and adopting the electric tool of this power brick, no matter adopt cable power or radio source access, can both be controlled electric power output by power brick, without the need to carrying various charger, power brick is charged, simple to operation.
Accompanying drawing explanation
Fig. 1 is the schematic block circuit diagram of the charging system of the first execution mode of the present invention;
Fig. 2 a, 2b are the schematic block circuit diagram of the different rectification circuit of two kinds in embodiment of the present invention respectively;
Fig. 3 is the front view of the drill kind tool with power brick of the first execution mode of the present invention;
Fig. 4 is the charger for charging to the power brick of drill kind tool of the first execution mode of the present invention;
Fig. 5 is the schematic block circuit diagram of the power brick of invention the second execution mode;
Fig. 6 is the drill kind tool with power brick of the second execution mode of the present invention and the front view of wireless power transmission device;
Fig. 7 is the schematic block circuit diagram of the charging system with automatic regulation function of the third execution mode of the present invention;
Fig. 8 is the front view of the built-in drill kind tool of the battery of the third execution mode of the present invention and charging device;
Fig. 9 is the schematic block circuit diagram of the adapter in the third execution mode of the present invention;
Figure 10 is the schematic block circuit diagram of the charging system of the present invention's the 4th kind of execution mode;
Figure 11 a, 11b are the logic control chart of charging system of the present invention.
Embodiment
The specific embodiment of the present invention is further illustrated below in conjunction with accompanying drawing.
Refer to Fig. 1 to Fig. 3, Fig. 1 is the schematic block circuit diagram of the charging system 100 of the first execution mode of the present invention, indicate 110 in figure and represent wireless power transmission device, those skilled in the art it is easily understood that, wireless power transmission device comprises power supply 111, radiating circuit 112 and transmitting coil 113, concrete, wireless transmission coil 111 and radiating circuit 112 are electrically connected.Here power supply generally refers to AC power supplies, and after being connected with AC power supplies, it is other module for power supply in circuit that AC power supplies is converted into DC power supply through the AC-DC module (not shown) of radiating circuit.Should be appreciated that wireless charging technology is well known in the art usually, it is mainly divided into way of electromagnetic induction and magnetic resonance mode.Way of electromagnetic induction is by applying AC electric current to change magnetic field with the transmission coil being used for wireless power transmission, and the induced current produced from adjacent receiving coil by the change due to magnetic field is charged to battery.In magnetic resonance mode, send coil with characteristic frequency radiation field, if there is the receiving coil of the frequency identical with the frequency sending coil close to sending coil, then send coil and receive electric power to provide electric power to battery by the energy tunnel produced due to resonance, the present invention does not limit the concrete mode adopting wireless charging, that is, any one wireless charging mode can be adopted to carry out wireless power to radio source access unit.
In Fig. 1,120 represent power receiving system, and it comprises two electric power access units, are radio source access unit 121 and cable power access unit 122, signal detection module 123, control unit 124 and charging circuit 125 respectively.
Wherein radio source access unit 121 comprises receiving coil 1211 and receiving circuit module 1212.Receiving coil is used for wirelessly receiving the electromagnetic energy launched from wireless power transmission device 110, and receiving circuit module 1212 carries out rectification to reception electric power and electric power detects, and by signal transmission to signal detection module 123.Concrete, receiving circuit module 1212 comprises resonant circuit and rectification circuit (figure does not mark).Referring to Fig. 2 a and Fig. 2 b, Fig. 2 a and Fig. 2 b represents the specific implementation of different rectification circuits respectively, Fig. 2 a represents can as the full bridge rectifier be made up of two diodes D1, D2 and two triode Q11 and Q12 exchanging input, it is by CTL1, CTL2 signal of control Q11 and Q12, control Q11, Q12 turn on and off, and realize input rectifying; If Q11, Q12 turn off simultaneously, so VOUT does not have voltage to export; Wherein the control signal of CTL1, CTL2 is provided by control unit 124.Fig. 2 b represents can as the full bridge rectifier be made up of four triodes Q1, Q2, Q3, Q4 exchanging input, by CTL1, CTL4, CTL2, CTL3 signal of control Q1, Q4 and Q2, Q3, control Q1, Q2, Q3, Q4 turn on and off, and realize synchronous rectification; If Q1, Q2, Q3, Q4 turn off simultaneously, so VOUT does not have voltage to export; The control signal of CTL1, CTL2, CTL3, CTL4 is provided by control unit 124.
In embodiments of the present invention, radio source access unit 121 adopts the mode controlling rectifier bridge switch by control unit 124 to charge, and can reduce circuit thermal losses, improves charge efficiency.With increase compared with new control switch pipe after rectifier bridge, the scheme controlling rectifier bridge switch can reduce number of elements, reduces stand-by power consumption, promotes charge efficiency.
The electromagnetic energy that receiving coil 1211 provides for receiving wireless power transmission device, and by resonant circuit, high-frequency stabilization sine wave is passed to rectification circuit.Rectification circuit is used for carrying out rectification to high_frequency sine wave, and high-frequency stabilization sine wave is converted into direct current.Described receiving circuit module 1212 can also comprise communication circuit module (not shown), be used for and carry out data communication between rechargeable battery 130 and wireless power transmission device 110, communication data can be battery wireless charging state and control command, also can be other electrical characteristic parameters of battery.
Cable power access unit 122 comprises connector 1221, is used for accessing corded power, after this connector 1221 is connected with externally fed parts, can be transmitted electric power by control unit 124 to rechargeable battery 130.
Control unit 124 detects the state of cable power or radio source access by signal detection module 123, when signal detection module 123 detects that electric power accesses, wakes control unit 124 up and carries out state-detection.The sampling signal of telecommunication is input to control unit 124 by signal detection module 123, and control unit 124 detects the access state of corded power and wireless power.If wireless power first accesses and effectively, control unit 124 controls the state of the semiconductor switch in receiving circuit module 1212 in rectification circuit, selected supplying channels.There is in control unit 124 controller MCU or other processors and memory cell (not shown), in memory cell, have the program code of battery charging Controlling model.Performed by program, control unit 124 provides drive singal to control the on off state of semiconductor switch in rectification circuit, controls charging circuit 125 when the switch is closed and charges to rechargeable battery 130.When selecting wired paths to power, electric power output is carried out in the shutoff of control unit control switch K1.
Particularly, during wireless power access, receiving coil 1211 is coupled with transmitting coil 113, in transmitting coil 113, apply alternating current, and the electric field of change produces magnetic field, and magnetic field is by receiving coil 1211 generation current of coupling.The electric current produced is alternating current, and the half-wave rectifying circuit that alternating current forms through diode and the copped wave of electric capacity (not shown) are direct current sampled signal, and sampled signal detects through signal detection module 123; If sampled signal reaches reservation threshold, this reservation threshold is certain signal spacing, and control unit 124 it is determined that the presence of active power input, otherwise judges to there is not active power, if input electric power exceeds reservation threshold, warns, and shutoff signal detects.
When corded power accesses, control unit 124 obtains the sampling letter number of entering row by a sampling resistor (not shown) and detects, if detect voltage to reach reservation threshold, this reservation threshold is certain signal spacing, control unit 124 it is determined that the presence of active power input, otherwise judges to there is not active power.
Preferably, control unit 124, according to the access state of power channel, according to the sequencing of access, controls the transmission channel of electric power.When wherein a kind of electric power input is effective, the controller MCU in control unit 124 or other processors, select this road electric power to power.When two kinds of electric power be all effectively access time, control unit 124 according to the preferential power supply principle preset, select supplying channels; In normal power supply process, after preferential supplying channels removes, supplying channels can be switched to other effective supplying channels existing by control unit 124, concrete charging process is as follows: when battery temperature in allowed limits and cell voltage be greater than allow pre-charge pressure time, charging circuit 125 control voltage export make rechargeable battery 130 enter constant current charging mode; When cell voltage is more than or equal to set point, charging circuit 125 control voltage exports and makes rechargeable battery 130 enter constant voltage charge pattern, detect temperature and the electric current of battery simultaneously, if battery current is less than preset value, complete charge, above charging process is well known to those skilled in the art, and is not described in detail here.
Be appreciated that, also can select wired or wireless power channel by other modes, wherein control unit 124 is by detecting the charging current of rechargeable battery 130, thus detect the charged state of rechargeable battery 130, when radio source being detected to the state that battery charges, in this condition, if battery is now connected to cable power, the then power channel of control unit 124 disconnection of wireless power supply, thus adopt and can charge to rechargeable battery 130 to wired charging power passage that battery charges fast.In another kind of execution mode, by detecting charged state or the connection of radio source and cable power, alternative radio source and cable power one of them battery is charged, by selecting best charging modes to charge to rechargeable battery 130, thus can charge to battery with preferred state all the time.
Rechargeable battery 130 in present embodiment can provide electric power to export for electric tool, and rechargeable battery here can be nickel-cadmium cell, Ni-MH battery or lithium battery.Described electric tool can be dill/hammer, saw class or garden tool class in any one, also can be the electric tool of other types well-known to those skilled in the art.Please refer to Fig. 3 and 4, the application of charging system on electric tool 10 of corresponding the first execution mode of the present invention, here be a kind of drill kind tool, containing rechargeable battery 130 in power brick 11, and power brick 11 is installed on electric tool 10 by dismountable mode, power receiving system 120 in corresponding present embodiment is chargers, this charger comprises the above-mentioned radio source access unit 121 mentioned and cable power access unit 122, signal detection module 123, control unit 124 and charging circuit 125, therefore can be charged to the power brick 11 be installed on it by least one in wired or wireless power channel.
Refer to Fig. 5, the schematic block circuit diagram of the power brick 21 with charging system 200 of corresponding the second execution mode of the present invention, be that the circuit module in power receiving system 120 is directly integrated in a power brick 21 by the second execution mode with the difference of the first execution mode, power brick 21 supports corded power to access and wireless power accesses two kinds of charging modes.Particularly, indicate 210 in figure and represent wireless power transmission device, it is identical with the wireless power transmission device 110 in execution mode one, wireless power transmission device 210 comprises transmitting coil 213, power brick 21 comprises radio source access unit 211 and cable power access unit 212, signal detection module 213, control unit 214 and rechargeable battery 216, wherein radio source access unit 211 is at least containing receiving coil 2111 and receiving circuit module 2112, and cable power access unit comprises connector 2121.The operation principle of the wired or wireless charging that above-mentioned power brick 21 adopts and logic control method identical with execution mode one, difference is to have charge-discharge circuit 215 in power brick 21, charge-discharge circuit 215 comprises a charging circuit (not shown) identical with the first execution mode, this charging circuit is used for obtaining electric energy from radio source access unit or cable power access unit and charging 216 to described rechargeable battery, in addition, power brick 21 externally can also be discharged by connector 2121, the discharge condition of rechargeable battery 216 can carry out detection and control by control unit 214.
Please refer to Fig. 6, the application of power brick 31 on electric tool with charging system 200 of corresponding the second execution mode of the present invention, power brick 21 in corresponding present embodiment, described power brick 21 can be installed on electric tool 20 by dismountable mode, be understandable that, power brick 21 also can be built in electric tool 20.
Please refer to Fig. 7 and Fig. 8, the schematic block circuit diagram with the charging system 300 with automatic regulation function of corresponding the third execution mode of the present invention, be that the charging system 300 of present embodiment is with automatic regulation function with the difference of first two execution mode, concrete, above-mentioned charging system 300 is electrically connected charging detecting circuit 325 between control unit 324 and rechargeable battery 326, in addition, also comprise battery cell monitoring module and charge and discharge control module (not shown), described control unit 324 comprises a controller, above-mentioned battery cell monitoring module and charge and discharge control module integration are in the controller of control unit 324, like this when charging, control unit 324 utilizes battery cell monitoring module to obtain the voltage of battery from charging detecting circuit 325, electric current, then the parameters such as temperature generate correct charging method and charge the battery, wherein control unit 324 controls the break-make of charging circuit by MOSFET.Be understandable that, battery cell monitoring module and charge and discharge control module also can be arranged in electric tool 30.Concrete, charging detecting circuit 325 also comprises voltage sampling circuit, current sampling circuit, temperature sampling circuit, in charging process, control unit 324 adopts to obtain rechargeable battery 326 current voltage, electric current and temperature thus export charging signals to wired or wireless charhing unit respectively by voltage sampling circuit, current sampling circuit, temperature sampling circuit, finally obtains the output of voltage needed for rechargeable battery 326 or electric current.
Please again consult Fig. 8, the application of charging system on electric tool 30 with automatic regulation function of corresponding the third execution mode of the present invention, electric tool 30 comprises the power brick 31 with rechargeable battery 326, described power brick 31 is built in electric tool 30, wireless power transmission device 310 and wired adapter 330, wherein radio source access unit 321 provides wireless power to export by wireless power transmission device 310, wireless power transmission device 310 comprises power supply 311, radiating circuit 312 and transmitting coil 313, and supply control unit (not shown), radio source access unit 321 comprises receiving coil 3211 and receiving circuit module 3212, wherein power delivery and data communication can be carried out between transmitting coil 313 and receiving coil 3211.Particularly, charging detecting circuit 325 detects the voltage status of rechargeable battery 326, send it to control unit 324, by radio source access unit 321, charging control signal is passed to wireless power transmission device 310 based on the data of above-mentioned detection by control unit 324, the supply control unit of wireless power transmission device 310 regulates the operating frequency of transmitting coil 313 and power output automatically according to the control command received, and reaches the charge requirement of radio source power supply unit 321.Compared to common electronic product, the charge power of its demand of power brick 31 of electric tool is higher, automatic regulation function is adopted to make wireless power transmission device 310 can according to the changes in demand of radio source access unit 321 power output, regulation output watt level, make power output and voltage keep stable, the demand of user can be met largely.
On the other hand, cable power access unit 322 provides corded power to export by adapter 330, wherein adapter 330 comprises positive and negative terminals and control terminal (not shown), the connector 3221 of cable power access unit 322 comprises positive and negative terminals and control terminal, when user selects corded power passage, adapter 330 and power brick 31 are connected, its positive and negative terminals and control terminal contact with the positive and negative terminals of power brick and control terminal respectively, in charging process, control unit 324 adopts to obtain power brick 31 current voltage, electric current and temperature thus export charging signals to the control terminal of adapter by matching network, and control the charging process of adapter.When battery temperature in allowed limits and cell voltage be greater than allow pre-charge pressure time, control adapter 330 voltage export make power brick 31 enter constant current charging mode; When cell voltage is greater than preset value, the voltage controlling adapter 330 exports and makes power brick 31 enter constant voltage charge pattern, simultaneously detected temperatures and electric current, if electric current is less than certain value, and complete charge.
The schematic block circuit diagram for the adapter 330 in the third execution mode of the present invention as shown in Figure 9.Adapter 330 comprises transformer 331, feedback control loop 332, light-coupled isolation control circuit 333, PWM controller 334, MOSFET power switch pipe 335.Alternating current suppresses circuit 337 and elementary input filter circuit 338 by EMI after being inputted by power supply input circuit 336, after secondary commutation output filter circuit, high voltage direct current is exported again after transformer 331, high voltage direct current flows through the loop of feedback control loop 332, light-coupled isolation control circuit 333, PWM controller 334 formation, control unit 324 inputs charging control signal by the control port of adapter 330 to PWM controller 334, and pwm control circuit controls MOSFET power switch pipe 335 thus the output of the voltage obtained needed for power brick 31 or electric current.Power supply input circuit 336 can be made up of (not shown) such as fuse, negative temperature coefficient resister, piezo-resistances, and make when power source internal occurs abnormal, power input there will not be large short circuit current.Reduce impulse current during power supply start, the surge voltage on incoming line can be absorbed simultaneously, by excessive pressure damages during preventing power source internal, current rectifying and wave filtering circuit in adapter 330 makes input voltage smothing filtering, filtering ripple voltage, for adapter 330 provides metastable direct voltage.The high frequency switching noise of filtering simultaneously, improves the transport properties of adapter.Refer to Figure 10, the schematic block circuit diagram of the wired or wireless charge-discharge system 400 of corresponding the present invention the 4th kind of execution mode, compared with the third execution mode, the difference of present embodiment is to add K switch 2 between the receiving circuit module 4212 of radio source access unit 421 and control unit 424, therefore control unit 424 is exported with the electric power turning off and then control radio source access unit 421, therefore without the need to controlling the semiconductor switch of rectification module in receiving circuit module 4212 by opening of control switch K2.Be understandable that, in first two execution mode, the electric power that the mode increasing K switch 2 also can be adopted directly to control radio source access unit exports.
The flow process controlling electric power transfer in embodiment of the present invention according to the access state of power channel will be described in detail below.Figure 11 a is depicted as the logic control chart of charging system of the present invention, and time as follows, composition graphs 11b describes the overall process of this charging system work in detail.
First, in step S01, user can access wired or radio source according to operating mode, in step S02, signal detection module detects electric power access state, in step S03, judge whether electric signal to be detected, returning step S02 to continue to detect as do not detected, after the signal of telecommunication being detected, then entering determining step S04, judge whether the electric power accessed is effective, particularly, by the various characterisitic parameters of mark access way feature, can judge whether access is effective as identified level, impedance, marker pulses string etc.If it is invalid to access, returns detecting step S02, do not perform charging operations.Cannot can also be carried out by the charging of the mode such as indicator light, voice reminder reminding user in concrete product, it is invalid to access.
If access effectively, then enter into next step, power channel is selected and battery is charged, here composition graphs 11b selects to be described in detail to power channel, in step S04, judges that whether electric power is effective, specifically determine whether nominal configuration to connect, if result whether, then enter step S13, without operation; If result is yes, then enter into channel selecting steps A to G, judge in concrete wired charhing unit and wireless charging unit, which power channel is effective by control unit, in step S05, judge effective port number N, if only have a power channel effective, then entering into step S06, is the power channel allowing power supply by this path setting; If two power channels are all effective, then enter into step S07, both turn-on time more once, select the power channel first accessed, again setting procedure S06 is entered into after passage is selected, selected effective passage is configured to effective channel status and powers, and now, the power channel timing of rear access is in place but do not allow power supply.In charging process, connect if the power channel of priority access disconnects, then configure other effective power channels and power.After selected effective supplying channels, enter into step S09, powered by the state of control unit control switch.
Concrete, plant in execution mode at first three, when selecting radio source access unit 121,221,321 to power, the switch that control unit 124,224,324 controls in rectification circuit corresponding is with it powered, in the 4th kind of execution mode, the connection of control unit 424 control switch K2 controls radio source access unit 421 with shutoff and powers.When selecting wired paths to power, above-mentioned execution mode carries out electric power output by control unit control switch K1.After the power channel access selected, this electric power is charged to rechargeable battery according to charge model by charging circuit.
Steps A to G selected effective supplying channels and carry out in power supply process, also comprise step S09, in step S09, control module in control unit or charging circuit can detect the electricity of rechargeable battery in real time, judge whether battery electric quantity reaches rated value in step slo, once battery electric quantity reaches rated value, then enter step S11 and stop charging; Otherwise, carry out step S12, continue charging.In addition, if artificially removed by electric power in charging process, stopping is charged by rechargeable battery.Be understandable that, corresponding charge protection design can be carried out, as temperature protection, overcurrent protection, overvoltage protection etc. according to the needs of actual design for battery and circuit characteristic.
Although the present invention with preferred embodiment disclose as above, so itself and be not used to limit the present invention.Persond having ordinary knowledge in the technical field of the present invention, without departing from the spirit and scope of the present invention, when being used for a variety of modifications and variations.Therefore, protection scope of the present invention is when being as the criterion depending on those as defined in claim.
Claims (12)
1. a power brick, described power brick comprises:
Radio source access unit, exports for the electric power wirelessly received from radio source;
Cable power access unit, exports for the electric power received through a cable from cable power;
Signal detection module, for detecting the state of outside cable power or radio source access;
At least one rechargeable battery, for storage of electrical energy and externally electric discharge;
Charging detecting circuit, for detecting the battery parameter of described rechargeable battery; And
Control unit, the access state of the cable power that control unit can detect according to described signal detection module or radio source manages power channel, described control unit also comprises battery cell monitoring module, control unit utilize battery cell monitoring module from charging detecting circuit obtain battery parameter and control cable power or radio source electric power export to provide suitable electric power to rechargeable battery.
2. power brick according to claim 1, it is characterized in that, described radio source comprises wireless power transmission device, described wireless power transmission device comprises the power supply of electrical connection, radiating circuit, transmitting coil, described radio source access unit comprises the receiving coil for wirelessly receiving the electromagnetic energy launched from wireless power transmission device and the receiving circuit module for carrying out rectification and electric power detection to reception electric power, power delivery and data communication can be carried out between described radio source access unit transmitting coil and described wireless power transmission device receiving coil.
3. power brick according to claim 2, is characterized in that, described wireless power transmission device can carry out power according to radio source access unit power output situation and automatically adjust.
4. power brick according to claim 3, it is characterized in that, described charging detecting circuit can detect the voltage status of rechargeable battery, send it to control unit, charging control signal can be passed to wireless power transmission device based on above-mentioned data by radio source access unit by described control unit, and described wireless power transmission device can regulate the operating frequency of transmitting coil and power output automatically according to the charging control signal received.
5. power brick according to claim 1, it is characterized in that, described cable power access unit comprises the connector for being connected with cable power, described cable power is electrically connected by adapter and described connector, described adapter comprises the first control port, described connector comprises the second control port be connected with described first control port, and described control unit controls the output valve of the voltage output end mouth of adapter by first, second control port described.
6. power brick according to claim 5, is characterized in that, described adapter comprises transformer, feedback control loop, light-coupled isolation control circuit, PWM controller, the MOSFET power switch pipe of electrical connection.
7. power brick according to claim 6, it is characterized in that, described charging detecting circuit comprises voltage sampling circuit, current sampling circuit, temperature sampling circuit, described control unit can adopt to obtain power brick current voltage, electric current and temperature thus export charging signals to the control port of adapter by matching network by charging detecting circuit, and controls the charging process of adapter.
8. the method utilizing at least one in cable power or radio source to charge to the power brick described in claim 1, described radio source comprises the wireless power transmission device for launching electromagnetic energy, described cable power is electrically connected by adapter and power brick and provides corded power to export, and described method comprises following action:
Access cable power or radio source;
Detect the access state of power channel, power channel is selected and rechargeable battery is charged;
In charging process, the parameter that charging detecting circuit detects rechargeable battery sends it to control unit;
Select in cable power charging process, control unit exports charging control signal by matching network to adapter, and controls the charging process of adapter;
Select in radio source charging process, charging control signal is passed to wireless power transmission device by radio source access unit by control unit, and wireless power transmission device regulates the operating frequency of transmitting coil and power output automatically according to the charging control signal received.
9. method according to claim 8, is characterized in that, described charging detecting circuit is electrically connected between control unit and rechargeable battery, and described charging detecting circuit comprises voltage sampling circuit, current sampling circuit, temperature sampling circuit.
10. method according to claim 8, is characterized in that, described control unit, according to the access state of power channel, selects effective power channel according to the sequencing of access.
11. 1 kinds of electric tools, is characterized in that, described electric tool is powered by the power brick in claim 1 to 7 described in any one.
12. electric tools according to claim 11, is characterized in that, described power brick is built in described 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 |
Applications Claiming Priority (1)
| 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105529754A true CN105529754A (en) | 2016-04-27 |
| CN105529754B CN105529754B (en) | 2019-01-04 |
Family
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| CN106910953A (en) * | 2017-04-10 | 2017-06-30 | 宁波微鹅电子科技有限公司 | Battery bag and wireless charging system |
| 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 |
| CN109417305A (en) * | 2018-09-21 | 2019-03-01 | 深圳市德品通电子有限公司 | Portable type power supply unit and its power supply management method |
| 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 electric tool with the power supply unit |
| CN111183573A (en) * | 2017-09-29 | 2020-05-19 | 费森尤斯医疗护理德国有限责任公司 | Medical pump driver, pump and medical treatment equipment |
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| CN105529754B (en) | 2019-01-04 |
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