WO2017211323A1 - Portable power supply access apparatus and portable power supply - Google Patents

Portable power supply access apparatus and portable power supply Download PDF

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Publication number
WO2017211323A1
WO2017211323A1 PCT/CN2017/088366 CN2017088366W WO2017211323A1 WO 2017211323 A1 WO2017211323 A1 WO 2017211323A1 CN 2017088366 W CN2017088366 W CN 2017088366W WO 2017211323 A1 WO2017211323 A1 WO 2017211323A1
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WO
WIPO (PCT)
Prior art keywords
electrically connected
battery pack
interface
circuit
coil
Prior art date
Application number
PCT/CN2017/088366
Other languages
French (fr)
Chinese (zh)
Inventor
朱宏
Original Assignee
南京德朔实业有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 南京德朔实业有限公司 filed Critical 南京德朔实业有限公司
Publication of WO2017211323A1 publication Critical patent/WO2017211323A1/en
Priority to US16/209,306 priority Critical patent/US10439415B2/en
Priority to US16/209,529 priority patent/US10923933B2/en
Priority to US16/512,555 priority patent/US11063456B2/en
Priority to US17/347,937 priority patent/US11296528B2/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Definitions

  • the invention relates to a charging combination, in particular to a battery pack with high output voltage and a charger thereof.
  • a portable power access device includes: an adapting interface for connecting a battery pack capable of supplying power to the power tool; an alternating current output interface for outputting alternating current; and a first coil electrically connected to the adapting interface; a second coil electrically connected to the alternating current output interface; a charging circuit for charging a battery pack connected to the adapting interface; and a primary inverter circuit for generating a phase change in the first coil
  • the alternating current circuit is electrically connected to the adapting interface and the first coil respectively.
  • the aforementioned portable power source access device is characterized in that the primary inverter circuit comprises a plurality of switching elements.
  • the portable power access device of the foregoing further comprising: a controller, configured to control the switching element; wherein the controller is electrically connected to the switching element, by controlling conduction of the switching element Or turning off the inverter circuit to output an alternating current.
  • the portable power access device of the present invention further includes: a rectifying and filtering circuit electrically connected to the second coil; a secondary inverter circuit electrically connected to the alternating current output interface; and the rectifying and filtering circuit And converting the alternating current outputted by the second coil into direct current; and the secondary inverter circuit is configured to invert the direct current into alternating current whose phase is constant.
  • the aforementioned portable power source access device is characterized in that the secondary inverter circuit comprises a plurality of switching elements.
  • the portable power access device of the foregoing further comprising: a controller electrically connected to the switching element, the secondary inverter being controlled by controlling on or off of the switching element
  • the output phase of the circuit is a fixed value of alternating current.
  • the portable power access device of the foregoing further comprising: a controller, configured to send a control signal to the primary inverter circuit or/and the charging circuit;
  • the controller includes: a charging control module, configured to: Controlling the operation of the charging circuit;
  • the discharging control module is configured to at least control the operation of the primary inverter circuit; and
  • the main control module controls the signal output according to the received charging control module or/and the discharging control module a control signal of the charging control module or the discharge control module;
  • the charging control module is electrically connected to the charging circuit, and the discharging control module is electrically connected to the primary inverter circuit.
  • the portable power access device of the foregoing further comprising: an alternating current input interface for inputting alternating current; and the alternating current input interface is electrically connected to the charging circuit.
  • the portable power access device of the foregoing further comprising: a first DC conversion circuit for converting DC power of the battery pack into 12V DC power; and a first DC output port for outputting 12V DC power;
  • the first DC conversion circuit is electrically connected to the adaptation interface; the first DC output port is electrically connected to the first DC conversion circuit.
  • a portable power access device includes: a plurality of adapter interfaces for connecting a plurality of battery packs capable of powering a power tool; an AC output interface for outputting an alternating current; and a first coil electrically connected to the suitable a second coil electrically connected to the alternating current output interface; a charging circuit for charging a battery pack connected to the adapter interface; and a primary inverter circuit for generating in the first coil An alternating current with a pulse width; a controller, configured to control the charging circuit to simultaneously charge a plurality of the battery packs; wherein the primary inverter circuit is electrically connected to the adapting interface and the first coil respectively The charging circuit is electrically connected to the controller.
  • a portable power source comprising: a battery pack capable of supplying at least one power tool; an adapting interface for connecting the battery pack; an AC output interface for outputting an alternating current; and a first coil electrically connected to the suitable a second coil electrically connected to the alternating current output interface; a charging circuit for charging a battery pack connected to the adapter interface; and a primary inverter circuit for generating in the first coil a phase-changing alternating current; wherein the primary inverter circuit is electrically connected to the adaptation interface and the first coil, respectively.
  • the invention is advantageous in that the portable power access device can be adapted to a battery pack powered by the power tool to convert the DC power of the battery pack into an AC power output.
  • FIG. 1 is a structural view of an embodiment of a portable power source of the present invention
  • FIG. 2 is a circuit block diagram of a portable power source access device in the portable power source shown in FIG. 1;
  • FIG. 3 is a circuit block diagram of a charging circuit of a portable power source access device
  • FIG. 4 is a diagram showing a state in which a switching element in a primary inverter circuit in the circuit block diagram of FIG. 2 is turned on or off in one cycle;
  • FIG. 5 is a circuit block diagram of an embodiment of a portable power access device of the present invention for implementing battery packs in series or in parallel;
  • Figure 6 is a block diagram of a circuit for controlling the discharge of two battery packs in the portable power source access device of the present invention.
  • two battery packs 10, 11 and a portable power source access device 20 are included.
  • the battery pack mainly includes: a first outer casing, a battery, and a power terminal.
  • the battery is housed in the first casing, the positive terminal of the power source is connected to the positive pole of the battery, and the power terminal is electrically connected to the battery.
  • the battery pack is detachably coupled to the portable power access device 20, and the power supply terminal is configured to allow a physical connection between the battery pack and the portable power source access device to transfer electrical energy and signals. When the battery pack is separated from the portable power access device, each battery pack can separately power the power tool.
  • the portable power access device 20 includes at least an adaptation interface, an AC input interface, a charging circuit, an AC output circuit, an AC output interface, and a controller.
  • the input end of the AC output circuit is electrically connected to the adaptation interface
  • the output end of the AC output circuit is electrically connected to the AC output interface
  • the input end of the charging circuit is electrically connected to the AC input interface
  • the output end of the charging circuit is electrically connected to the adaptation interface.
  • the charging circuit and the AC output circuit are electrically connected to the controller respectively.
  • the controller is used to control the operation of the charging circuit and/or the AC output circuit.
  • the user when the battery pack has insufficient power and needs to charge the battery pack, the user integrates the battery pack into the portable power access device, and the portable power access device is provided with a switch button and is electrically connected with the controller for implementing the charging mode.
  • the controller is configured to do the following:
  • the portable power access device includes a voltage detection module, the voltage detection module and the controller are electrically connected.
  • the voltage detection module detects the voltage change of the adapter interface
  • the controller determines that the adapter interface is electrically connected to the power terminal.
  • the portable power access device may also include a current detecting module, and the current change determination adapter interface detected by the current detecting module forms an electrical connection with the power terminal. Only one of the current detecting module and the voltage detecting module detects the voltage or current change of the adapter interface, and then determines that the adapter interface and the power terminal form an electrical connection.
  • the adaptation interface includes a DC access positive terminal A+, a DC access negative terminal A-, and a DC communication terminal D.
  • the power terminal includes a power positive terminal, a power negative terminal, and a power communication terminal.
  • the battery pack's own voltage detection module or current detection module detects the change of the electrical signal on the power terminal, and the communication connection established between the power communication terminal and the DC communication terminal transmits the electrical signal to the controller, and the controller accordingly Determine whether the adapter interface is electrically connected to the power terminal.
  • the controller it is also possible to directly determine whether the adapter interface and the power terminal are electrically connected through the battery pack controller inside the battery pack.
  • the user adjusts the combination of the battery pack and the portable power source access device until an electrical connection is made between the adapter interface and the power terminal.
  • the portable power access device may be provided with a display device electrically connected to the controller, such as an indicator light.
  • the indicator light When the adapter interface is electrically connected to the power terminal, the indicator light is green; when the adapter interface and the power terminal are When the electrical connection is not established, the indicator light is red to alert the user.
  • the user can also be alerted directly through the display device on the battery pack.
  • the adapter interface When the adapter interface is electrically connected to the power terminal, it is detected whether the AC input interface is connected to the AC power.
  • the voltage detection module or the current detection module detects the voltage or current change of the AC input interface. If the voltage or current changes, the AC input interface is connected to the AC power.
  • the AC input interface is not connected to AC power.
  • the portable power supply is installed.
  • the indicator light for indicating whether the AC input interface is connected with the input AC and the indicator light for indicating whether the adapter interface and the power terminal are electrically connected may be the same indicator or two independent indicators.
  • the charging circuit starts to work, and the battery pack is charged through the charging circuit.
  • the controller is configured to: when the AC input interface of the portable power source access device is connected to the AC power, the charging circuit is turned on and the communication is started.
  • the control circuit that the output circuit does not work charges the battery pack by controlling the charging circuit. That is to say, the portable power access device does not discharge outward during charging of the battery pack to save power and reduce the battery pack charging waiting time.
  • the preset voltage value indicates that the battery pack is charged and stops charging; if the preset voltage value is not reached, the battery pack is continuously charged until the preset voltage value is reached.
  • the voltage of the battery pack can be detected by the voltage detecting module of the battery pack itself, or by the voltage detecting module of the portable input device.
  • the controller includes a charging control module that controls the charging circuit to charge the battery pack.
  • the charging control module controls the charging circuit to charge the battery pack in a fast charging mode, a slow charging mode or a pulse charging manner.
  • the battery pack that is adapted to the portable power access device usually has a large capacity, and when the power required by the electrical device is small, it is usually not necessary to fully charge the battery pack before power supply, so that the user can understand the state of charge of the battery pack.
  • the charging control module outputs a control signal characterizing different charging states of the battery pack according to the detected battery pack voltage magnitude.
  • the charging control module outputs a first control signal when the battery pack voltage reaches one-half of the rated voltage of the battery pack, and represents a first charging state of the battery pack, and outputs a second when the battery pack voltage reaches a preset voltage value of the battery pack.
  • the control signal indicates that the battery pack has reached full charge.
  • the charging control module has multiple charging modes. Specifically, the charging control module can call different charging modes to charge the battery pack according to the detected battery package power information, and improve the battery.
  • the charging efficiency of the package For example, when detecting that the battery pack is lower than one third of the total battery pack, the battery pack is charged for 20 minutes in a fast charging manner and then charged in a constant voltage manner; the battery pack is detected to be higher than the total battery pack. In one case, the battery pack is charged by pulse charging.
  • the charging circuit will be described with reference to FIG. 3, and the charging circuit mainly includes: a power access module and a charging module.
  • the power access module is used to access the AC power source.
  • the battery pack When the battery pack is low in power, the battery pack can be charged by the portable power access device, and the portable power access device is connected to the AC power source through the power access module during charging, where the AC power source can be the power source provided by the AC power grid. .
  • the power access module includes: an AC input module for connecting an AC input interface, an EMC module for eliminating electromagnetic interference, a rectification and filtering module for adjusting electric energy, an EMC module respectively, an AC input module, and a rectification and filtering module
  • the electrical connection is formed, and the rectifying and filtering module is electrically connected to the charging circuit.
  • the charging module is connected in series between the power access module and the adaptation interface for converting the input alternating current into a direct current power suitable for adapting the interface.
  • the battery pack is coupled to the portable power access device, the DC access positive terminal A+ is electrically connected to the power positive terminal, the DC access negative terminal A- is electrically connected to the power negative terminal, the DC communication terminal D is electrically connected to the power communication terminal,
  • the battery pack and the portable power access device form a physical connection that can transfer electrical energy and signals.
  • the DC power converted by the charging module is output to the battery pack via the adapter interface.
  • the charging module includes: a current limiting module including at least one resonant circuit, and a rectifying output module for supplying power to the adaptation interface.
  • the charging control module is electrically connected to the charging module for controlling whether the charging module outputs power from the charging module to the DC access positive terminal A+ and the DC access negative terminal A-.
  • the charge control module When charging two battery packs through the portable power access device, the charge control module is configured to charge one of the battery packs until the other battery pack is fully charged. It can also be configured to charge two battery packs at the same time.
  • the charging circuit includes two charging modules respectively connected to the two adapter interfaces, the two charging modules share the power access module, and each charging module is in the charging control. Under the control of the module, the two batteries are simultaneously charged through the correspondingly connected adaptation interfaces.
  • the controller issues a control command for turning on the operation of the AC output circuit, so that the power of the battery pack is output to the power device through the AC output circuit.
  • the charging circuit does not work. That is to say, the portable power source access device does not charge during the external discharge process, so as to minimize the signal interference between the charging circuit and the AC output circuit when working at the same time.
  • the portable power input device is used to provide alternating current, and the user operates the switch button to the discharge mode.
  • the controller is configured to perform the following operations:
  • the adapter interface When the adapter interface is electrically connected to the power terminal, it is detected whether the AC output interface is connected to the power device.
  • the voltage detecting module is electrically connected to the AC output interface, and the AC output interface is connected to the electrical device to introduce a contact resistance, so that the voltage of the AC output interface changes, and the voltage detecting module detects the voltage change to determine that the AC output interface is connected to the electrical device.
  • the AC output interface includes an AC positive terminal and an AC negative terminal.
  • the AC positive terminal and the AC negative terminal are both charged.
  • the AC positive terminal and the AC output circuit are The first switching device is connected in series, and the second switching device is connected in series between the alternating current negative terminal and the alternating current output circuit to detect that the alternating current output interface is not connected to the power device, and the controller outputs a control signal that turns off both switching devices.
  • the controller When detecting the alternating current output interface to connect the electrical device, the controller outputs a control signal for turning off the two switching devices, and outputs alternating current.
  • the output control signal for controlling the operation of the AC output circuit causes the AC output circuit to operate.
  • the AC output circuit is connected in series between the adapter interface and the AC output port for converting the DC power of the battery pack into an AC power output.
  • the AC output circuit includes: a primary inverter circuit, a transformer, a rectification and filtering circuit, a secondary inverter circuit, and an AC control module.
  • the input end of the primary inverter circuit is electrically connected to the adaptation interface, and the output end is electrically connected to the first coil of the transformer A sexual connection for providing phase-adjustable alternating current to the first coil.
  • the primary inverter circuit includes four switching elements Q1, Q2, Q3, and Q4, and the discharge control module controls the conduction or the closing of the four switching elements, so that the direct current input to the input of the primary inverter circuit is modulated.
  • the primary inverter circuit is a full-bridge inverter circuit, and the discharge control module adjusts the alternating current output to the first coil by means of phase shift control, and the four switching elements are guided in one cycle under the control of the discharge control module.
  • the on and off states are shown in Figure 4.
  • the phase difference corresponding to the [t0, t2] time period in the figure is the phase shift angle.
  • the discharge control module adjusts the alternating current output by the inverter circuit by adjusting the magnitude of the phase shift angle.
  • the switching element here can be a field effect transistor, a bipolar transistor or a power transistor.
  • the transformer functions to boost the voltage of the alternating current, and includes the first coil and the second coil.
  • it is usually required to connect the resonant inductor in series with the primary coil and the first coil of the transformer.
  • the increase in resonant inductance introduces additional electronic components and power consumption, reducing the output efficiency of the AC output circuit and increasing circuit cost.
  • the resonant inductor is coupled into the transformer, and the soft start of the switching component is directly realized by using the transformer under the premise of reducing the resonant inductance, thereby effectively reducing the power consumption introduced by the resonant inductor and reducing the cost.
  • the ratio of the first coil to the second coil of the transformer should be as large as possible.
  • the ratio of the first coil turns to the second coil turns ranges from 1:6 to 1:8.
  • the ratio of the leakage inductance of the transformer to the magnetizing inductance of the first coil ranges from 3% to 5%.
  • the rectifying and filtering circuit is electrically connected to the second coil of the transformer, and is used for rectifying and filtering the alternating current signal boosted by the transformer, and outputting a constant voltage direct current.
  • the rectifying and filtering circuit comprises a rectifying unit and a filtering unit, and the rectifying unit may be a half-wave rectifying circuit or a full-wave rectifying circuit, configured to convert the input alternating current into a pulsating direct current, and the pulsating direct current is filtered to remove the clutter signal to obtain a constant voltage. DC power.
  • the secondary inverter circuit is electrically connected to the rectifier filter circuit, and the secondary inverter circuit is driven by the AC control module to convert the DC signal input from the DC input side of the secondary inverter circuit into an AC signal required by the AC output port.
  • the inverter circuit includes a plurality of switching elements, and the AC control module controls the switching elements to be turned on or off by using a bipolar frequency multiplication control method to output an alternating current signal required by the alternating current output port.
  • two 56V battery packs are used as DC power supplies through portable power supplies. Take the AC signal with an output voltage of 110V as an example to describe the working process of the portable power supply.
  • the charging control module drives the charging circuit to work while charging the two battery packs, and at the same time, the charging control module sends the working signal of the charging circuit to the controller.
  • the controller outputs a control command to stop the operation of the AC output circuit to the AC output.
  • the AC output interface is connected to the electric device, and the discharge control module outputs a control signal for discharging the other battery pack after one of the battery packs is discharged, and the discharge control module controls once.
  • the control signal of the inverter circuit converts the direct current of 56V into alternating current and then boosts it to the alternating current output of 220V via the transformer, and then drives the rectifying and filtering circuit through the discharge control module to convert the alternating current with a voltage of 220V into an alternating current with a voltage of 110V. Output.
  • the portable power access device further includes: a switch circuit for controlling two battery packs to be connected in series or in parallel.
  • the switch circuit includes: a first switch K1 is connected in series between a negative pole of the first battery pack and a positive pole of the second battery pack, and a second switch K2 is connected in series between the positive pole of the first battery pack and the positive pole of the second battery pack a third switch K3, a direct current positive output terminal C+, and a direct current negative output terminal C- connected in series between the negative pole of the first battery pack and the negative pole of the second battery pack.
  • the first switch, the second switch and the third switch are respectively electrically connected to the controller, and the DC voltage between the DC positive output terminal C+ and the DC negative output terminal C- is used as an input voltage of the AC output circuit.
  • the controller When the controller detects that the voltages of the first battery pack and the second battery pack do not meet the AC output demand of the portable power access device, the controller issues a first control signal that closes the first switch, and the first switch is closed, the first battery The package is connected in series with the second battery pack to provide sufficient input voltage to the AC output circuit.
  • the first switch can be a diode, a triode or a field effect transistor.
  • the controller issues a second control signal that closes the second switch K2 and the third switch K3, so that the first battery pack is connected in parallel with the second battery pack to increase The amount of electricity supplied.
  • the second switch K2 and the third switch K3 may be diodes, transistors or field effect transistors.
  • the portable power access device further includes a voltage detecting module.
  • the controller When the voltage detecting module detects that the voltage of the first battery pack is not equal to the voltage of the second battery pack, the controller outputs a battery pack that makes the voltage larger. The control signal is discharged first until the voltages of the two battery packs are equal, and the two battery packs are simultaneously discharged.
  • the portable power access device includes a first adapter port A for connecting to the first battery pack (including a first positive terminal A+ and a first negative terminal A-) and a second adapter port B (including a second positive terminal B+ and a second negative terminal B-) for connecting the second battery pack, in the first
  • the first electronic switch K4 is connected in series between the port and the AC output circuit
  • the second electronic switch K5 is connected in series between the second adapter port and the AC output circuit
  • the first adapter port and the second adapter port have no electrical signal.
  • the first electronic switch K4 and the second electronic switch K5 are both in an on state.
  • the controller When the voltage detecting module detects that the voltage of the first battery pack is greater than the voltage of the second battery pack, the controller outputs the second electronic switch.
  • the control signal causes the first battery pack to discharge until the voltage of the first battery pack is equal to the voltage of the second battery pack, and the controller outputs a control signal for closing the second electronic switch such that the two battery packs are simultaneously discharged.
  • the controller output causes the current direction to be opposite to the direction of the self-discharge current.
  • the battery pack is discharged first until the current direction of the two battery packs is the same as the discharge direction of the battery pack itself, and the two batteries are in a control signal for simultaneous discharge.
  • the portable power access device includes a first adapter port for connecting to the first battery pack and a second adapter port for connecting the second battery pack, between the first adapter port and the AC output circuit Connecting the first electronic switch in series, and connecting the second electronic switch between the second adapter port and the AC output circuit, the first adapter port and the second adapter port have no electrical signal input, the first electronic switch and the second The electronic switch is in an on state.
  • the controller When the current detecting module detects that the current direction of the first battery pack is opposite to the direction of the first battery pack self-discharge current, the controller outputs a control signal for disconnecting the second electronic switch, so that the first battery The packet is discharged until the current direction of the first battery pack is the same as its own discharge current direction, and the controller outputs a control signal that closes the second electronic switch so that the two battery packs are simultaneously discharged.
  • the portable power access device further includes a plurality of DC conversion circuits, and a DC output interface electrically connected to the respective DC-DC conversion circuits.
  • a first DC conversion circuit for converting 56V DC power into 12V DC power, and a first DC output interface for outputting 12V DC power electrically connected to the first DC conversion circuit;
  • a second DC conversion circuit that converts to a DC power of 19V, and a second DC output interface that is electrically connected to the second DC conversion circuit for outputting 19V DC power
  • the notebook is connected to the second DC output interface to make the portable power access device available Powering the notebook.
  • the third DC conversion circuit for converting 56V DC power into a 5V DC output, and a third DC output interface electrically connected to the third DC conversion circuit.
  • the third DC output interface is a USB interface, and can be used for Mobile phone connection allows portable power access devices to be used for Powered by mobile phone.
  • the portable power access device further includes a temperature detecting module for detecting the temperature of the portable power source access device and/or the battery pack, and a fan for dissipating heat to the power source access device and the battery pack.
  • the temperature detecting module and the fan are electrically connected to the controller, and the controller outputs a corresponding control signal according to the temperature information detected by the temperature detecting module to control the fan operation.
  • the controller when the temperature detecting module detects that the temperature of the portable power access device is higher than the temperature threshold, the controller outputs a control signal for increasing the fan speed to achieve a rapid heat dissipation effect; when the detected temperature is lower than the temperature threshold, the output decreases the fan speed.
  • the control signal reduces the power loss while achieving the heat dissipation effect.
  • the temperature of the battery pack can be detected and transmitted to the portable power source access device through the temperature detecting module of the battery pack itself, or can be detected by the temperature detecting module of the portable power source access device.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

A portable power supply access apparatus (20), comprising: an adapter interface for connecting to a battery pack (10, 11) capable of supplying power to an electric tool; an alternating-current output interface for outputting an alternating current; a first coil electrically connected to the adapter interface; a second coil electrically connected to the alternating-current output interface; a charging circuit for charging the battery pack connected to the adapter interface; and a primary inverter circuit for generating a phase-changed alternating current in the first coil, wherein the primary inverter circuit is electrically connected to the adapter interface and the first coil respectively. A portable power supply (100) is further provided. The portable power supply access apparatus (20) can be adapted to be the battery pack (10, 11) supplying power to the electric tool, and converts a direct current of the battery pack (10, 11) into an alternating current for output.

Description

便携式电源接入装置和便携式电源Portable power access device and portable power supply 技术领域Technical field
本发明涉及一种充电组合，具体涉及一种高输出电压的电池包及其充电器。The invention relates to a charging combination, in particular to a battery pack with high output voltage and a charger thereof.
背景技术Background technique
随着电池技术的发展，电动工具正在逐渐取代引擎工具。为了实现近似于引擎工作的工作效果和续航时间，电池包的额定功率和容量也越来越大。With the development of battery technology, power tools are gradually replacing engine tools. In order to achieve the working effect and endurance time of the engine work, the rated power and capacity of the battery pack are also increasing.
在户外进行工作和旅游，往往需要交流电源来为一些工作或设施供电；传统的可携带的电源，往往尤其内部的电芯组供电，一旦该电源的电芯组的电能消耗完则无法持续提供交流电。Working outdoors and traveling, often requires AC power to power some work or facilities; traditional portable power supplies, often especially internal battery packs, cannot be continuously provided once the power of the battery pack is exhausted. AC power.
发明内容Summary of the invention
为了实现上述目标，本发明采用如下的技术方案：In order to achieve the above objectives, the present invention adopts the following technical solutions:
一种便携式电源接入装置，包括：适配接口，用于连接一个能为电动工具供电的电池包；交流电输出接口，用于输出交流电；第一线圈，电性连接至所述适配接口；第二线圈，电性连接至所述交流电输出接口；充电电路，用于为所述适配接口所连接的电池包充电；一次逆变电路，用于在所述第一线圈中产生相位变化的交流电；其中，所述一次逆变电路分别与所述适配接口和所述第一线圈电性连接。A portable power access device includes: an adapting interface for connecting a battery pack capable of supplying power to the power tool; an alternating current output interface for outputting alternating current; and a first coil electrically connected to the adapting interface; a second coil electrically connected to the alternating current output interface; a charging circuit for charging a battery pack connected to the adapting interface; and a primary inverter circuit for generating a phase change in the first coil The alternating current circuit is electrically connected to the adapting interface and the first coil respectively.
前述的便携式电源接入装置，其特征在于，所述一次逆变电路包括多个开关元件。The aforementioned portable power source access device is characterized in that the primary inverter circuit comprises a plurality of switching elements.
前述的便携式电源接入装置，其特征在于，还包括：控制器，用于控制所述开关元件；其中，所述控制器与所述开关元件电性连接，通过控制所述开关元件的导通或关断使得所述一次逆变电路逆变输出交流电。The portable power access device of the foregoing, further comprising: a controller, configured to control the switching element; wherein the controller is electrically connected to the switching element, by controlling conduction of the switching element Or turning off the inverter circuit to output an alternating current.
前述的便携式电源接入装置，其特征在于，还包括：整流滤波电路，电性连接至所述第二线圈；二次逆变电路，电性连接至所述交流电输出接口；述整流滤波电路用于将所述第二线圈输出的交流电变为直流电；所述二次逆变电路用于将所述直流电逆变为相位为定值的交流电。The portable power access device of the present invention further includes: a rectifying and filtering circuit electrically connected to the second coil; a secondary inverter circuit electrically connected to the alternating current output interface; and the rectifying and filtering circuit And converting the alternating current outputted by the second coil into direct current; and the secondary inverter circuit is configured to invert the direct current into alternating current whose phase is constant.
前述的便携式电源接入装置，其特征在于，所述二次逆变电路包括多个开关元件。 The aforementioned portable power source access device is characterized in that the secondary inverter circuit comprises a plurality of switching elements.
前述的便携式电源接入装置，其特征在于，还包括：控制器，所述控制器与所述开关元件电性连接，通过控制所述开关元件的导通或关断使得所述二次逆变电路输出相位为定值的交流电。The portable power access device of the foregoing, further comprising: a controller electrically connected to the switching element, the secondary inverter being controlled by controlling on or off of the switching element The output phase of the circuit is a fixed value of alternating current.
前述的便携式电源接入装置，其特征在于，还包括：控制器，用于发送控制信号至所述一次逆变电路或/和所述充电电路；所述控制器包括：充电控制模块，用于控制所述充电电路的工作；放电控制模块，至少用于控制所述一次逆变电路的工作；主控模块，依据所接收的所述充电控制模块或/和所述放电控制模块的信号输出控制所述充电控制模块或/和所述放电控制模块的控制信号；所述充电控制模块与所述充电电路电性连接，所述放电控制模块与所述一次逆变电路电性连接。The portable power access device of the foregoing, further comprising: a controller, configured to send a control signal to the primary inverter circuit or/and the charging circuit; the controller includes: a charging control module, configured to: Controlling the operation of the charging circuit; the discharging control module is configured to at least control the operation of the primary inverter circuit; and the main control module controls the signal output according to the received charging control module or/and the discharging control module a control signal of the charging control module or the discharge control module; the charging control module is electrically connected to the charging circuit, and the discharging control module is electrically connected to the primary inverter circuit.
前述的便携式电源接入装置，其特征在于，还包括：交流电输入接口，用于输入交流电；所述交流电输入接口与所述充电电路电性连接。The portable power access device of the foregoing, further comprising: an alternating current input interface for inputting alternating current; and the alternating current input interface is electrically connected to the charging circuit.
前述的便携式电源接入装置，其特征在于，还包括：第一直流转换电路，用于将所述电池包的直流电转换为12V直流电；第一直流输出端口，用于输出12V直流电；所述第一直流转换电路与所述适配接口电性连接；所述第一直流输出端口与所述第一直流转换电路电性连接。The portable power access device of the foregoing, further comprising: a first DC conversion circuit for converting DC power of the battery pack into 12V DC power; and a first DC output port for outputting 12V DC power; The first DC conversion circuit is electrically connected to the adaptation interface; the first DC output port is electrically connected to the first DC conversion circuit.
一种便携式电源接入装置，包括：多个适配接口，用于连接多个能为电动工具供电的电池包；交流电输出接口，用于输出交流电；第一线圈，电性连接至所述适配接口；第二线圈，电性连接至所述交流电输出接口；充电电路，用于为所述适配接口所连接的电池包充电；一次逆变电路，用于在所述第一线圈中产生脉宽变化的交流电；控制器，用于控制所述充电电路同时为多个所述电池包充电；其中，所述一次逆变电路分别与所述适配接口和所述第一线圈电性连接；所述充电电路与所述控制器电性连接。A portable power access device includes: a plurality of adapter interfaces for connecting a plurality of battery packs capable of powering a power tool; an AC output interface for outputting an alternating current; and a first coil electrically connected to the suitable a second coil electrically connected to the alternating current output interface; a charging circuit for charging a battery pack connected to the adapter interface; and a primary inverter circuit for generating in the first coil An alternating current with a pulse width; a controller, configured to control the charging circuit to simultaneously charge a plurality of the battery packs; wherein the primary inverter circuit is electrically connected to the adapting interface and the first coil respectively The charging circuit is electrically connected to the controller.
一种便携式电源，包括：至少能为一个电动工具供电的电池包；适配接口，用于连接所述电池包；交流电输出接口，用于输出交流电；第一线圈，电性连接至所述适配接口；第二线圈，电性连接至所述交流电输出接口；充电电路，用于为所述适配接口所连接的电池包充电；一次逆变电路，用于在所述第一线圈中产生相位变化的交流电；其中，所述一次逆变电路分别与所述适配接口和所述第一线圈电性连接。 A portable power source comprising: a battery pack capable of supplying at least one power tool; an adapting interface for connecting the battery pack; an AC output interface for outputting an alternating current; and a first coil electrically connected to the suitable a second coil electrically connected to the alternating current output interface; a charging circuit for charging a battery pack connected to the adapter interface; and a primary inverter circuit for generating in the first coil a phase-changing alternating current; wherein the primary inverter circuit is electrically connected to the adaptation interface and the first coil, respectively.
本发明的有益之处在于：便携式电源接入装置能够适配为电动工具供电的电池包，将电池包的直流电转换为交流电源输出。The invention is advantageous in that the portable power access device can be adapted to a battery pack powered by the power tool to convert the DC power of the battery pack into an AC power output.
附图说明DRAWINGS
图1是本发明便携式电源一个实施例的结构图；1 is a structural view of an embodiment of a portable power source of the present invention;
图2是图1所示的便携式电源中的便携式电源接入装置的电路框图；2 is a circuit block diagram of a portable power source access device in the portable power source shown in FIG. 1;
图3是便携式电源接入装置的充电电路的电路框图；3 is a circuit block diagram of a charging circuit of a portable power source access device;
图4是图2所述的电路框图中的一次逆变电路中的开关元件在一个周期内的导通或关闭状态图；4 is a diagram showing a state in which a switching element in a primary inverter circuit in the circuit block diagram of FIG. 2 is turned on or off in one cycle;
图5是本发明便携式电源接入装置中用于实现电池包串联或并联的一个实施例的电路框图；5 is a circuit block diagram of an embodiment of a portable power access device of the present invention for implementing battery packs in series or in parallel;
图6是本发明便携式电源接入装置中用于控制两个电池包放电的电路框图。Figure 6 is a block diagram of a circuit for controlling the discharge of two battery packs in the portable power source access device of the present invention.
具体实施方式detailed description
以下结合附图和具体实施例对本发明作具体的介绍。The present invention will be specifically described below in conjunction with the accompanying drawings and specific embodiments.
参考图1所示的便携式电源100，包括两个电池包10、11以及便携式电源接入装置20。Referring to the portable power source 100 shown in FIG. 1, two battery packs 10, 11 and a portable power source access device 20 are included.
电池包主要包括：第一外壳、电池、电源端子。电池容纳在第一外壳中，电源正端子与电池的正极连接，电源端子与电池电性连接。电池包可拆卸地结合至便携式电源接入装置20，通过电源端子使电池包与便携式电源接入装置之间构成能传递电能和信号上的物理连接。电池包与便携式电源接入装置分离时，每个电池包可单独为电动工具供电。The battery pack mainly includes: a first outer casing, a battery, and a power terminal. The battery is housed in the first casing, the positive terminal of the power source is connected to the positive pole of the battery, and the power terminal is electrically connected to the battery. The battery pack is detachably coupled to the portable power access device 20, and the power supply terminal is configured to allow a physical connection between the battery pack and the portable power source access device to transfer electrical energy and signals. When the battery pack is separated from the portable power access device, each battery pack can separately power the power tool.
参考图2所示，便携式电源接入装置20至少包括适配接口、交流电输入接口、充电电路、交流输出电路、交流电输出接口以及控制器。Referring to FIG. 2, the portable power access device 20 includes at least an adaptation interface, an AC input interface, a charging circuit, an AC output circuit, an AC output interface, and a controller.
交流输出电路输入端与适配接口电性连接，交流输出电路输出端与交流电输出接口电性连接，充电电路输入端与交流电输入接口电性连接，充电电路输出端与适配接口电性连接，充电电路与交流输出电路分别与控制器电性连接。The input end of the AC output circuit is electrically connected to the adaptation interface, the output end of the AC output circuit is electrically connected to the AC output interface, the input end of the charging circuit is electrically connected to the AC input interface, and the output end of the charging circuit is electrically connected to the adaptation interface. The charging circuit and the AC output circuit are electrically connected to the controller respectively.
控制器用于控制充电电路和/或交流输出电路的工作。The controller is used to control the operation of the charging circuit and/or the AC output circuit.
一方面，在电池包的电量不足，需要给电池包充电时，用户将电池包结合至便携式电源接入装置，便携式电源接入装置设有切换按键，与控制器电气连接，用于实现充电模式和放电模式的切换，在给电池包充电时，用户操作切换按键至 充电模式，在充电模式下，控制器被配置为执行下列操作：On the one hand, when the battery pack has insufficient power and needs to charge the battery pack, the user integrates the battery pack into the portable power access device, and the portable power access device is provided with a switch button and is electrically connected with the controller for implementing the charging mode. Switching to the discharge mode, when charging the battery pack, the user operates the switch button to Charging mode, in charging mode, the controller is configured to do the following:
判断便携式电源接入装置的适配接口是否与电源端子构成电连接；Determining whether the adapter interface of the portable power access device is electrically connected to the power terminal;
在适配接口与电源端子之间构成电连接时，适配接口和电源端子上均能检测到电信号，可选的，便携式电源接入装置包括电压检测模块，电压检测模块与控制器电性连接，电压检测模块检测适配接口的电压变化则控制器判断适配接口与电源端子构成电连接。When an electrical connection is formed between the adapter interface and the power terminal, an electrical signal can be detected on the adapter interface and the power terminal. Optionally, the portable power access device includes a voltage detection module, the voltage detection module and the controller are electrically connected. When the voltage detection module detects the voltage change of the adapter interface, the controller determines that the adapter interface is electrically connected to the power terminal.
当然，便携式电源接入装置也可包括电流检测模块，通过电流检测模块检测到的适配接口的电流变化判断适配接口与电源端子构成电连接。只需电流检测模块与电压检测模块两者之一检测到适配接口的电压或电流变化，则判断适配接口与电源端子构成电连接。Of course, the portable power access device may also include a current detecting module, and the current change determination adapter interface detected by the current detecting module forms an electrical connection with the power terminal. Only one of the current detecting module and the voltage detecting module detects the voltage or current change of the adapter interface, and then determines that the adapter interface and the power terminal form an electrical connection.
具体而言，适配接口包括直流接入正端子A+、直流接入负端子A-以及直流通讯端子D，电源端子包括电源正端子、电源负端子以及电源通讯端子。适配接口与电源端子连接时，电源正端子连接至直流接入正端子，电源负端子连接至直流接入负端子、电源通讯端子连接至电源通讯端子。Specifically, the adaptation interface includes a DC access positive terminal A+, a DC access negative terminal A-, and a DC communication terminal D. The power terminal includes a power positive terminal, a power negative terminal, and a power communication terminal. When the adapter interface is connected to the power terminal, the power positive terminal is connected to the DC access positive terminal, the power negative terminal is connected to the DC access negative terminal, and the power communication terminal is connected to the power communication terminal.
作为可选方案，利用电池包自身的电压检测模块或电流检测模块检测电源端子上的电信号变化，通过电源通讯端子与直流通讯端子建立的通讯连接传输电信号变化至控制器，控制器据此判断适配接口与电源端子是否建立电性连接。或者，也可直接通过电池包内部的电池包控制器判断适配接口与电源端子是否建立电性连接。As an alternative, the battery pack's own voltage detection module or current detection module detects the change of the electrical signal on the power terminal, and the communication connection established between the power communication terminal and the DC communication terminal transmits the electrical signal to the controller, and the controller accordingly Determine whether the adapter interface is electrically connected to the power terminal. Alternatively, it is also possible to directly determine whether the adapter interface and the power terminal are electrically connected through the battery pack controller inside the battery pack.
当适配接口与电源端子未构成电连接，用户调整电池包与便携式电源接入装置的结合直至适配接口与电源端子之间构成电连接。When the adapter interface and the power terminal do not form an electrical connection, the user adjusts the combination of the battery pack and the portable power source access device until an electrical connection is made between the adapter interface and the power terminal.
具体而言，便携式电源接入装置上可设有与控制器电性连接的显示装置，例如指示灯，当适配接口与电源端子电连接时，指示灯为绿色；当适配接口与电源端子未建立电连接时，指示灯为红色以提醒用户注意。当然，也可直接通过电池包上的显示装置提醒用户。Specifically, the portable power access device may be provided with a display device electrically connected to the controller, such as an indicator light. When the adapter interface is electrically connected to the power terminal, the indicator light is green; when the adapter interface and the power terminal are When the electrical connection is not established, the indicator light is red to alert the user. Of course, the user can also be alerted directly through the display device on the battery pack.
当适配接口与电源端子构成电连接时，检测交流输入接口是否接入交流电。When the adapter interface is electrically connected to the power terminal, it is detected whether the AC input interface is connected to the AC power.
电压检测模块或电流检测模块检测交流输入接口的电压或电流变化，若电压或电流变化则说明交流输入接口已接入交流电。The voltage detection module or the current detection module detects the voltage or current change of the AC input interface. If the voltage or current changes, the AC input interface is connected to the AC power.
若无变化则说明交流输入接口未接入交流电，具体而言，便携式电源接入装 置还设有用于显示交流输入接口是否输入交流电的显示灯，在有交流电输入时显示灯为绿色，无交流电输出时显示灯为红色，以方便提醒用户。If there is no change, the AC input interface is not connected to AC power. Specifically, the portable power supply is installed. There is also a display light for displaying whether the AC input interface inputs AC power. When there is an AC input, the display light is green, and when there is no AC power output, the display light is red, so as to remind the user.
需要说明的是，用于显示交流输入接口是否与输入交流电的显示灯与用于显示适配接口与电源端子是否电连接的指示灯可为同一指示灯或两个独立的指示灯。It should be noted that the indicator light for indicating whether the AC input interface is connected with the input AC and the indicator light for indicating whether the adapter interface and the power terminal are electrically connected may be the same indicator or two independent indicators.
当交流输入接口接入交流电时，充电电路开始工作，通过充电电路给电池包充电。When the AC input interface is connected to the AC power, the charging circuit starts to work, and the battery pack is charged through the charging circuit.
由于电池包自身电量不足，通过接入交流电给电池包充电时，为减小充电等待时间，控制器被配置为：当便携式电源接入装置交流输入接口接入交流电，发出开启充电电路工作且交流输出电路不工作的控制指令，通过控制充电电路给电池包充电。也就是说，便携式电源接入装置在给电池包充电的过程中不向外放电，以节约电能减小电池包充电等待时间。Since the battery pack itself has insufficient power, when charging the battery pack by charging AC power, in order to reduce the charging waiting time, the controller is configured to: when the AC input interface of the portable power source access device is connected to the AC power, the charging circuit is turned on and the communication is started. The control circuit that the output circuit does not work charges the battery pack by controlling the charging circuit. That is to say, the portable power access device does not discharge outward during charging of the battery pack to save power and reduce the battery pack charging waiting time.
检测电池包的电压值是否达到预设电压值，若达到预设电压值，则表明电池包充电完成，停止充电；若未达到预设电压值，则继续给电池包充电直至到达预设电压值。Detect whether the voltage value of the battery pack reaches the preset voltage value. If the preset voltage value is reached, it indicates that the battery pack is charged and stops charging; if the preset voltage value is not reached, the battery pack is continuously charged until the preset voltage value is reached. .
具体的，电池包的电压可由电池包自身的电压检测模块检测，也可由便携式输入装置的电压检测模块检测。Specifically, the voltage of the battery pack can be detected by the voltage detecting module of the battery pack itself, or by the voltage detecting module of the portable input device.
控制器包括充电控制模块，控制充电电路给电池包充电。The controller includes a charging control module that controls the charging circuit to charge the battery pack.
充电控制模块控制充电电路以快充方式、慢充方式或脉冲充电的方式给电池包充电。The charging control module controls the charging circuit to charge the battery pack in a fast charging mode, a slow charging mode or a pulse charging manner.
适配至便携式电源接入装置的电池包通常具有较大容量，而当用电装置所需的电量较小时，通常无需将电池包充满电后再进行供电，为方便用户了解电池包的充电状态，充电控制模块依据检测的电池包电压大小输出表征电池包不同充电状态的控制信号。The battery pack that is adapted to the portable power access device usually has a large capacity, and when the power required by the electrical device is small, it is usually not necessary to fully charge the battery pack before power supply, so that the user can understand the state of charge of the battery pack. The charging control module outputs a control signal characterizing different charging states of the battery pack according to the detected battery pack voltage magnitude.
具体的，充电控制模块在电池包电压达到电池包额定电压的二分之一输出第一控制信号，表征电池包的第一充电状态，在电池包电压达到电池包预设电压值时输出第二控制信号，表征电池包达到满充状态。Specifically, the charging control module outputs a first control signal when the battery pack voltage reaches one-half of the rated voltage of the battery pack, and represents a first charging state of the battery pack, and outputs a second when the battery pack voltage reaches a preset voltage value of the battery pack. The control signal indicates that the battery pack has reached full charge.
作为可选方案，充电控制模块具有多种充电模式，具体而言，充电控制模块可依据检测得到的电池包电量信息调用不同的充电方式给电池包充电，提高电池 包的充电效率。例如，检测电池包电量低于电池包总电量的三分之一时，以快速充电方式给电池包充电20分钟后再以恒压方式充电；检测电池包电量高于电池包总电量的二分之一时，以脉冲充电的方式给电池包充电。As an alternative, the charging control module has multiple charging modes. Specifically, the charging control module can call different charging modes to charge the battery pack according to the detected battery package power information, and improve the battery. The charging efficiency of the package. For example, when detecting that the battery pack is lower than one third of the total battery pack, the battery pack is charged for 20 minutes in a fast charging manner and then charged in a constant voltage manner; the battery pack is detected to be higher than the total battery pack. In one case, the battery pack is charged by pulse charging.
结合图3对充电电路进行说明，充电电路主要包括：电能接入模块和充电模块。The charging circuit will be described with reference to FIG. 3, and the charging circuit mainly includes: a power access module and a charging module.
电能接入模块用于接入交流电源。在电池包电量不足时，可通过便携式电源接入装置给电池包充电，便携式电源接入装置在进行充电时通过电能接入模块接入交流电源，这里的交流电源可以是由交流电网提供的电源。The power access module is used to access the AC power source. When the battery pack is low in power, the battery pack can be charged by the portable power access device, and the portable power access device is connected to the AC power source through the power access module during charging, where the AC power source can be the power source provided by the AC power grid. .
进一步，电能接入模块包括：用于连接交流电输入接口的交流输入模块，用于消除电磁干扰的EMC模块，用于对电能进行调整的整流滤波模块，EMC模块分别与交流输入模块和整流滤波模块构成电连接，整流滤波模块与充电电路构成电性连接。Further, the power access module includes: an AC input module for connecting an AC input interface, an EMC module for eliminating electromagnetic interference, a rectification and filtering module for adjusting electric energy, an EMC module respectively, an AC input module, and a rectification and filtering module The electrical connection is formed, and the rectifying and filtering module is electrically connected to the charging circuit.
充电模块串联在电能接入模块与适配接口之间，用于将输入的交流电转换为适用于适配接口所需的直流电。The charging module is connected in series between the power access module and the adaptation interface for converting the input alternating current into a direct current power suitable for adapting the interface.
电池包结合至便携式电源接入装置，直流接入正端子A+与电源正端子电连接、直流接入负端子A-与电源负端子电连接、直流通讯端子D与电源通讯端子电性连接，使得电池包与便携式电源接入装置构成能传递电能和信号的物理连接。在通过便携式电源接入装置给电池包充电时，经充电模块转换的直流电经适配接口输出至电池包。The battery pack is coupled to the portable power access device, the DC access positive terminal A+ is electrically connected to the power positive terminal, the DC access negative terminal A- is electrically connected to the power negative terminal, the DC communication terminal D is electrically connected to the power communication terminal, The battery pack and the portable power access device form a physical connection that can transfer electrical energy and signals. When the battery pack is charged by the portable power access device, the DC power converted by the charging module is output to the battery pack via the adapter interface.
由于从交流电电网获取的电能不适于直接为电池包充电，因此需要对充电模块进行调整。具体而言，充电模块包括：至少包含一个谐振电路的限流模块、以及用于向适配接口供电的整流输出模块。Since the power obtained from the AC grid is not suitable for directly charging the battery pack, the charging module needs to be adjusted. Specifically, the charging module includes: a current limiting module including at least one resonant circuit, and a rectifying output module for supplying power to the adaptation interface.
充电控制模块电连接至充电模块，用于控制充电模块是否将电能由充电模块输出至直流接入正端子A+和直流接入负端子A-。The charging control module is electrically connected to the charging module for controlling whether the charging module outputs power from the charging module to the DC access positive terminal A+ and the DC access negative terminal A-.
在通过便携式电源接入装置给两个电池包充电时，充电控制模块被配置为先为其中一个电池包充电直至满电后再对另外一个电池包充电。也可被配置为同时给两个电池包充电，此时，充电电路中包括两个分别连接至两个适配接口的充电模块，两个充电模块共用电能接入模块，各个充电模块在充电控制模块的控制下通过各自对应连接的适配接口同时给两个电池充电。 When charging two battery packs through the portable power access device, the charge control module is configured to charge one of the battery packs until the other battery pack is fully charged. It can also be configured to charge two battery packs at the same time. At this time, the charging circuit includes two charging modules respectively connected to the two adapter interfaces, the two charging modules share the power access module, and each charging module is in the charging control. Under the control of the module, the two batteries are simultaneously charged through the correspondingly connected adaptation interfaces.
另一方面，在需要当便携式电源接入装置的交流接出接口接入用电装置时，控制器发出开启交流输出电路工作的控制指令，使得电池包的电量经交流输出电路输出至用电装置，同时充电电路不工作。也就是说，便携式电源接入装置在对外放电的过程中不充电，以最大限度降低充电电路与交流输出电路同时工作时相互之间的信号干扰。On the other hand, when it is required to access the power device when the AC power receiving interface of the portable power source access device is connected, the controller issues a control command for turning on the operation of the AC output circuit, so that the power of the battery pack is output to the power device through the AC output circuit. At the same time, the charging circuit does not work. That is to say, the portable power source access device does not charge during the external discharge process, so as to minimize the signal interference between the charging circuit and the AC output circuit when working at the same time.
利用便携式电源输入装置提供交流电，用户操作切换按键至放电模式，在放电模式下，控制器被配置为执行如下操作：The portable power input device is used to provide alternating current, and the user operates the switch button to the discharge mode. In the discharge mode, the controller is configured to perform the following operations:
判断适配接口与电源端子是否构成电性连接；具体的实现方式与充电模式相同，这里不再赘述。It is determined whether the adapter interface and the power terminal constitute an electrical connection; the specific implementation manner is the same as the charging mode, and details are not described herein again.
在适配接口与电源端子构成电性连接时，检测交流电输出接口是否连接用电装置。When the adapter interface is electrically connected to the power terminal, it is detected whether the AC output interface is connected to the power device.
电压检测模块与交流电输出接口电性连接，交流电输出接口连接用电装置将引入接触电阻，使得交流电输出接口的电压发生变化，电压检测模块检测到电压变化则判断交流电输出接口连接用电装置。当然，也可以通过检测交流电输出接口接触电阻的方式判断交流电输出接口是否连接用电装置。The voltage detecting module is electrically connected to the AC output interface, and the AC output interface is connected to the electrical device to introduce a contact resistance, so that the voltage of the AC output interface changes, and the voltage detecting module detects the voltage change to determine that the AC output interface is connected to the electrical device. Of course, it is also possible to determine whether the AC output interface is connected to the power device by detecting the contact resistance of the AC output interface.
交流电输出接口包括交流电正端子、交流电负端子，当适配接口与电源端子构成电性连接时，交流电正端子和交流电负端子均带电，为保证用电安全，在交流电正端子与交流输出电路之间串接第一开关器件，在交流电负端子与交流电输出电路之间串接第二开关器件，检测交流电输出接口未连接用电装置，控制器输出使两个开关器件都断开的控制信号，在检测交流电输出接口连接用电装置，控制器输出关闭两个开关器件的控制信号，输出交流电。The AC output interface includes an AC positive terminal and an AC negative terminal. When the adapter interface and the power terminal form an electrical connection, the AC positive terminal and the AC negative terminal are both charged. To ensure the safety of the power, the AC positive terminal and the AC output circuit are The first switching device is connected in series, and the second switching device is connected in series between the alternating current negative terminal and the alternating current output circuit to detect that the alternating current output interface is not connected to the power device, and the controller outputs a control signal that turns off both switching devices. When detecting the alternating current output interface to connect the electrical device, the controller outputs a control signal for turning off the two switching devices, and outputs alternating current.
当交流电输出接口连接用电装置时，输出控制交流输出电路工作的控制信号使得交流输出电路工作。When the AC output interface is connected to the electrical device, the output control signal for controlling the operation of the AC output circuit causes the AC output circuit to operate.
参考图2所示，交流输出电路串联在适配接口与交流输出端口之间，用于将电池包的直流电转换为交流电输出。Referring to FIG. 2, the AC output circuit is connected in series between the adapter interface and the AC output port for converting the DC power of the battery pack into an AC power output.
由于直流电无法直接转换成交流电，因此需要对交流输出电路进行设计。Since direct current cannot be directly converted to alternating current, the AC output circuit needs to be designed.
交流输出电路包括：一次逆变电路、变压器、整流滤波电路、二次逆变电路以及交流控制模块。The AC output circuit includes: a primary inverter circuit, a transformer, a rectification and filtering circuit, a secondary inverter circuit, and an AC control module.
一次逆变电路的输入端与适配接口电性连接，输出端与变压器的第一线圈电 性连接，用于为第一线圈提供相位可调的交流电。The input end of the primary inverter circuit is electrically connected to the adaptation interface, and the output end is electrically connected to the first coil of the transformer A sexual connection for providing phase-adjustable alternating current to the first coil.
参考图2所示，一次逆变电路包括四个开关元件Q1、Q2、Q3、Q4，利用放电控制模块控制四个开关元件的导通或闭合，使得一次逆变电路输入端输入的直流电被调制为变压器第一线圈所需的相位可调的交流电。具体而言，一次逆变电路为全桥逆变电路，放电控制模块采用移相控制的方式调节输出至第一线圈的交流电，四个开关元件在放电控制模块的控制下的一个周期内的导通和断开状态如图4所示。图中[t0，t2]时间段对应的相位差即为移相角。放电控制模块通过调节移相角的大小来调节一次逆变电路所输出的交流电，移相角越小，输出的交流电的电压越高。这里的开关元件可以是场效应管、双极性晶体管或功率晶体管。Referring to FIG. 2, the primary inverter circuit includes four switching elements Q1, Q2, Q3, and Q4, and the discharge control module controls the conduction or the closing of the four switching elements, so that the direct current input to the input of the primary inverter circuit is modulated. The phase-adjustable AC current required for the first coil of the transformer. Specifically, the primary inverter circuit is a full-bridge inverter circuit, and the discharge control module adjusts the alternating current output to the first coil by means of phase shift control, and the four switching elements are guided in one cycle under the control of the discharge control module. The on and off states are shown in Figure 4. The phase difference corresponding to the [t0, t2] time period in the figure is the phase shift angle. The discharge control module adjusts the alternating current output by the inverter circuit by adjusting the magnitude of the phase shift angle. The smaller the phase shift angle, the higher the voltage of the output alternating current. The switching element here can be a field effect transistor, a bipolar transistor or a power transistor.
变压器起到提升交流电的电压的作用，包含第一线圈和第二线圈，为了实现开关元件的软启动，通常需要在一次逆变电路和变压器第一线圈中串接谐振电感。由于谐振电感的增加会引入额外的电子元件和功率消耗，降低了交流输出电路的输出效率且增加了电路成本。作为一种可能的实施方式，将谐振电感耦合于变压器中，在减少谐振电感的前提下直接利用变压器实现开关元件的软启动，有效降低了因谐振电感引入的功率消耗，降低了成本。The transformer functions to boost the voltage of the alternating current, and includes the first coil and the second coil. In order to realize the soft start of the switching element, it is usually required to connect the resonant inductor in series with the primary coil and the first coil of the transformer. The increase in resonant inductance introduces additional electronic components and power consumption, reducing the output efficiency of the AC output circuit and increasing circuit cost. As a possible implementation manner, the resonant inductor is coupled into the transformer, and the soft start of the switching component is directly realized by using the transformer under the premise of reducing the resonant inductance, thereby effectively reducing the power consumption introduced by the resonant inductor and reducing the cost.
为了提高变压器的利用率，减小开关元件的电流，从而减小损耗和降低成本，变压器第一线圈和第二线圈的比值应该尽可能地大一些。本实施例中第一线圈匝数与第二线圈匝数的比值范围为1:6～1:8。变压器漏感与第一线圈的励磁电感的比值的取值范围为3％～5％。In order to increase the utilization of the transformer and reduce the current of the switching element, thereby reducing the loss and reducing the cost, the ratio of the first coil to the second coil of the transformer should be as large as possible. In this embodiment, the ratio of the first coil turns to the second coil turns ranges from 1:6 to 1:8. The ratio of the leakage inductance of the transformer to the magnetizing inductance of the first coil ranges from 3% to 5%.
整流滤波电路与变压器的第二线圈电性连接，用于对经变压器升压的交流电信号整流滤波，输出恒压的直流电。具体的，整流滤波电路包括整流单元和滤波单元，整流单元可为半波整流电路或全波整流电路，用于将输入的交流电为脉动直流电，脉动直流电经滤波单元滤除杂波信号得到恒压的直流电。The rectifying and filtering circuit is electrically connected to the second coil of the transformer, and is used for rectifying and filtering the alternating current signal boosted by the transformer, and outputting a constant voltage direct current. Specifically, the rectifying and filtering circuit comprises a rectifying unit and a filtering unit, and the rectifying unit may be a half-wave rectifying circuit or a full-wave rectifying circuit, configured to convert the input alternating current into a pulsating direct current, and the pulsating direct current is filtered to remove the clutter signal to obtain a constant voltage. DC power.
二次逆变电路与整流滤波电路电性连接，利用交流控制模块驱动该二次逆变电路以将二次逆变电路直流输入侧输入的直流电信号转换为交流输出端口所需的交流电信号。具体而言，逆变电路包括多个开关元件，交流控制模块采用双极性倍频的控制方式控制开关元件的导通或关断从而输出交流输出端口所需的交流电信号。The secondary inverter circuit is electrically connected to the rectifier filter circuit, and the secondary inverter circuit is driven by the AC control module to convert the DC signal input from the DC input side of the secondary inverter circuit into an AC signal required by the AC output port. Specifically, the inverter circuit includes a plurality of switching elements, and the AC control module controls the switching elements to be turned on or off by using a bipolar frequency multiplication control method to output an alternating current signal required by the alternating current output port.
在具体应用中，以两个56V的电池包作为直流电源通过便携式电源接入装 置输出电压为110V的交流电信号为例，对便携式电源的工作过程进行描述。一方面，在电池包电量不足时，交流电输入接口接入交流电时，充电控制模块驱动充电电路工作，同时给两个电池包充电，与此同时，充电控制模块发送充电电路的工作信号至控制器，控制器输出停止交流输出电路工作的控制指令至交流输出。另一方面，在需要利用电池包给用电装置供电时，交流电输出接口连接用电装置，放电控制模块输出其中一个电池包放电完成后另一电池包再放电的控制信号，放电控制模块控制一次逆变电路的控制信号使得电压为56V的直流电转换为交流电再经由变压器升压至电压为220V的交流电输出，再通过放电控制模块驱动整流滤波电路将电压为220V的交流电转换为电压为110V的交流电输出。In specific applications, two 56V battery packs are used as DC power supplies through portable power supplies. Take the AC signal with an output voltage of 110V as an example to describe the working process of the portable power supply. On the one hand, when the battery pack has insufficient power, when the AC input interface is connected to the AC power, the charging control module drives the charging circuit to work while charging the two battery packs, and at the same time, the charging control module sends the working signal of the charging circuit to the controller. The controller outputs a control command to stop the operation of the AC output circuit to the AC output. On the other hand, when it is necessary to use the battery pack to supply power to the electric device, the AC output interface is connected to the electric device, and the discharge control module outputs a control signal for discharging the other battery pack after one of the battery packs is discharged, and the discharge control module controls once. The control signal of the inverter circuit converts the direct current of 56V into alternating current and then boosts it to the alternating current output of 220V via the transformer, and then drives the rectifying and filtering circuit through the discharge control module to convert the alternating current with a voltage of 220V into an alternating current with a voltage of 110V. Output.
参考图5所示，便携式电源接入装置还包括：用于控制两个电池包串联或并联的开关电路。该开关电路包括：在第一电池包的负极与第二电池包的正极之间串接第一开关K1，在第一电池包的正极与第二电池包的正极之间串接第二开关K2，在第一电池包的负极与第二电池包的负极之间串接的第三开关K3、直流电正输出端子C+以及直流电负输出端子C-。其中，第一开关、第二开关以及第三开关分别与控制器电性连接，直流电正输出端子C+与直流电负输出端子C-之间的直流电压作为交流输出电路的输入电压。Referring to FIG. 5, the portable power access device further includes: a switch circuit for controlling two battery packs to be connected in series or in parallel. The switch circuit includes: a first switch K1 is connected in series between a negative pole of the first battery pack and a positive pole of the second battery pack, and a second switch K2 is connected in series between the positive pole of the first battery pack and the positive pole of the second battery pack a third switch K3, a direct current positive output terminal C+, and a direct current negative output terminal C- connected in series between the negative pole of the first battery pack and the negative pole of the second battery pack. The first switch, the second switch and the third switch are respectively electrically connected to the controller, and the DC voltage between the DC positive output terminal C+ and the DC negative output terminal C- is used as an input voltage of the AC output circuit.
控制器检测第一电池包与第二电池包的电压均不满足便携式电源接入装置的交流电输出需求时，控制器发出使第一开关闭合的第一控制信号，第一开关闭合，第一电池包与第二电池包串联，提供足够的输入电压至交流输出电路。具体的，第一开关可为二极管、三极管或场效应管。When the controller detects that the voltages of the first battery pack and the second battery pack do not meet the AC output demand of the portable power access device, the controller issues a first control signal that closes the first switch, and the first switch is closed, the first battery The package is connected in series with the second battery pack to provide sufficient input voltage to the AC output circuit. Specifically, the first switch can be a diode, a triode or a field effect transistor.
当第一电池包和/或第二电池包的电量不足时，控制器发出使第二开关K2和第三开关K3闭合的第二控制信号，使得第一电池包与第二电池包并联以增加供电的电量。可选的，第二开关K2和第三开关K3可为二极管、三极管或场效应管。When the amount of power of the first battery pack and/or the second battery pack is insufficient, the controller issues a second control signal that closes the second switch K2 and the third switch K3, so that the first battery pack is connected in parallel with the second battery pack to increase The amount of electricity supplied. Optionally, the second switch K2 and the third switch K3 may be diodes, transistors or field effect transistors.
如图6所示，便携式电源接入装置还包括电压检测模块，在电压检测模块检测第一电池包的电压与第二电池包的电压不相等时，控制器输出使得电压较大的一个电池包先放电，直至两个电池包的电压相等，两个电池包再同时放电的控制信号。As shown in FIG. 6, the portable power access device further includes a voltage detecting module. When the voltage detecting module detects that the voltage of the first battery pack is not equal to the voltage of the second battery pack, the controller outputs a battery pack that makes the voltage larger. The control signal is discharged first until the voltages of the two battery packs are equal, and the two battery packs are simultaneously discharged.
具体的，便携式电源接入装置包括用于与第一电池包连接的第一适配端口A (包括第一正极端子A+和第一负极端子A-)和用于连接第二电池包的第二适配端口B(包括第二正极端子B+和第二负极端子B-)，在第一适配端口与交流输出电路之间串接第一电子开关K4，在第二适配端口与交流输出电路之间串接第二电子开关K5，第一适配端口和第二适配端口无电信号输入时，第一电子开关K4和第二电子开关K5均处于导通状态，当电压检测模块检测到第一电池包的电压大于第二电池包的电压时，控制器输出断开第二电子开关的控制信号，使得第一电池包放电，直至第一电池包的电压与第二电池包的电压相等，控制器输出闭合第二电子开关的控制信号使得两个电池包同时放电。Specifically, the portable power access device includes a first adapter port A for connecting to the first battery pack (including a first positive terminal A+ and a first negative terminal A-) and a second adapter port B (including a second positive terminal B+ and a second negative terminal B-) for connecting the second battery pack, in the first The first electronic switch K4 is connected in series between the port and the AC output circuit, and the second electronic switch K5 is connected in series between the second adapter port and the AC output circuit, and the first adapter port and the second adapter port have no electrical signal. When inputting, the first electronic switch K4 and the second electronic switch K5 are both in an on state. When the voltage detecting module detects that the voltage of the first battery pack is greater than the voltage of the second battery pack, the controller outputs the second electronic switch. The control signal causes the first battery pack to discharge until the voltage of the first battery pack is equal to the voltage of the second battery pack, and the controller outputs a control signal for closing the second electronic switch such that the two battery packs are simultaneously discharged.
作为另一种可选方案，在电流检测模块检测到第一电池包或第二电池包的电流方向与电池包自身的放电方向相反时，控制器输出使得电流方向与自身放电电流方向反向的电池包先放电，直至两个电池包的电流方向与电池包自身的放电方向相同时，两个电池包在同时放电的控制信号。As another alternative, when the current detecting module detects that the current direction of the first battery pack or the second battery pack is opposite to the discharge direction of the battery pack itself, the controller output causes the current direction to be opposite to the direction of the self-discharge current. The battery pack is discharged first until the current direction of the two battery packs is the same as the discharge direction of the battery pack itself, and the two batteries are in a control signal for simultaneous discharge.
具体的，便携式电源接入装置包括用于与第一电池包连接的第一适配端口和用于连接第二电池包的第二适配端口，在第一适配端口与交流输出电路之间串接第一电子开关，在第二适配端口与交流输出电路之间串接第二电子开关，第一适配端口和第二适配端口无电信号输入时，第一电子开关和第二电子开关均处于导通状态，当电流检测模块检测到第一电池包的电流方向与第一电池包自身放电电流方向相反时，控制器输出断开第二电子开关的控制信号，使得第一电池包放电，直至第一电池包的电流方向与其自身的放电电流方向相同，控制器输出闭合第二电子开关的控制信号使得两个电池包同时放电。Specifically, the portable power access device includes a first adapter port for connecting to the first battery pack and a second adapter port for connecting the second battery pack, between the first adapter port and the AC output circuit Connecting the first electronic switch in series, and connecting the second electronic switch between the second adapter port and the AC output circuit, the first adapter port and the second adapter port have no electrical signal input, the first electronic switch and the second The electronic switch is in an on state. When the current detecting module detects that the current direction of the first battery pack is opposite to the direction of the first battery pack self-discharge current, the controller outputs a control signal for disconnecting the second electronic switch, so that the first battery The packet is discharged until the current direction of the first battery pack is the same as its own discharge current direction, and the controller outputs a control signal that closes the second electronic switch so that the two battery packs are simultaneously discharged.
此外，便携式电源接入装置还包括多个直流转换电路，以及分别与各自的DC-DC转换电路电性连接的直流输出接口。比如，用于将56V直流电转换为12V的直流电的第一直流转换电路，以及与第一直流转换电路电性连接的用于输出12V直流电的第一直流输出接口；用于将56V直流电转换为19V的直流电的第二直流转换电路，以及与第二直流转换电路电性连接的用于输出19V直流电的第二直流输出接口，笔记本与第二直流输出接口连接使得便携式电源接入装置可用于为笔记本供电。用于将56V直流电转换为5V的直流电输出的第三直流转换电路，以及与第三直流转换电路电性连接的第三直流输出接口，具体的，第三直流输出接口为USB接口，可用于与手机连接使得便携式电源接入装置可用于为 手机供电。In addition, the portable power access device further includes a plurality of DC conversion circuits, and a DC output interface electrically connected to the respective DC-DC conversion circuits. For example, a first DC conversion circuit for converting 56V DC power into 12V DC power, and a first DC output interface for outputting 12V DC power electrically connected to the first DC conversion circuit; for 56V DC power a second DC conversion circuit that converts to a DC power of 19V, and a second DC output interface that is electrically connected to the second DC conversion circuit for outputting 19V DC power, and the notebook is connected to the second DC output interface to make the portable power access device available Powering the notebook. a third DC conversion circuit for converting 56V DC power into a 5V DC output, and a third DC output interface electrically connected to the third DC conversion circuit. Specifically, the third DC output interface is a USB interface, and can be used for Mobile phone connection allows portable power access devices to be used for Powered by mobile phone.
便携式电源接入装置还包括温度检测模块和风扇，温度检测模块用于检测便携式电源接入装置和/或电池包的温度，风扇用于给电源接入装置和电池包散热。温度检测模块、风扇均与控制器电性连接，控制器依据温度检测模块检测的温度信息输出相应的控制信号以控制风扇工作。The portable power access device further includes a temperature detecting module for detecting the temperature of the portable power source access device and/or the battery pack, and a fan for dissipating heat to the power source access device and the battery pack. The temperature detecting module and the fan are electrically connected to the controller, and the controller outputs a corresponding control signal according to the temperature information detected by the temperature detecting module to control the fan operation.
例如，温度检测模块检测便携式电源接入装置的温度高于温度阈值时，控制器输出增加风扇转速的控制信号，以达到快速散热效果；当检测的温度低于温度阈值时，输出降低风扇转速的控制信号，在达到散热效果的同时降低电能损耗。For example, when the temperature detecting module detects that the temperature of the portable power access device is higher than the temperature threshold, the controller outputs a control signal for increasing the fan speed to achieve a rapid heat dissipation effect; when the detected temperature is lower than the temperature threshold, the output decreases the fan speed. The control signal reduces the power loss while achieving the heat dissipation effect.
需要说明的是，电池包的温度可通过电池包自身的温度检测模块检测传输至便携式电源接入装置，也可利用便携式电源接入装置的温度检测模块检测。It should be noted that the temperature of the battery pack can be detected and transmitted to the portable power source access device through the temperature detecting module of the battery pack itself, or can be detected by the temperature detecting module of the portable power source access device.
以上显示和描述了本发明的基本原理、主要特征和优点。本行业的技术人员应该了解，上述实施例不以任何形式限制本发明，凡采用等同替换或等效变换的方式所获得的技术方案，均落在本发明的保护范围内。 The basic principles, main features and advantages of the present invention have been shown and described above. It should be understood by those skilled in the art that the above embodiments are not intended to limit the invention in any way, and the technical solutions obtained by means of equivalent substitution or equivalent transformation are all within the scope of the invention.

Claims (11)

  1. 一种便携式电源接入装置，包括：A portable power access device includes:
    适配接口，用于连接一个能为电动工具供电的电池包；Adapter interface for connecting a battery pack that can power a power tool;
    交流电输出接口，用于输出交流电；AC output interface for outputting AC power;
    第一线圈，电性连接至所述适配接口；a first coil electrically connected to the adapter interface;
    第二线圈，电性连接至所述交流电输出接口；a second coil electrically connected to the alternating current output interface;
    充电电路，用于为所述适配接口所连接的电池包充电；a charging circuit, configured to charge a battery pack connected to the adapter interface;
    一次逆变电路，用于在所述第一线圈中产生相位变化的交流电；a primary inverter circuit for generating an alternating current having a phase change in the first coil;
    其中，所述一次逆变电路分别与所述适配接口和所述第一线圈电性连接。The primary inverter circuit is electrically connected to the adaptation interface and the first coil, respectively.
  2. 根据权利要求1所述的便携式电源接入装置，其特征在于，A portable power source access device according to claim 1 wherein:
    所述一次逆变电路包括多个开关元件。The primary inverter circuit includes a plurality of switching elements.
  3. 根据权利要求2所述的便携式电源接入装置，其特征在于，A portable power source access device according to claim 2, wherein
    还包括：Also includes:
    控制器，用于控制所述开关元件；a controller for controlling the switching element;
    其中，所述控制器与所述开关元件电性连接，通过控制所述开关元件的导通或关断使得所述一次逆变电路逆变输出交流电。The controller is electrically connected to the switching element, and the primary inverter circuit inverts and outputs an alternating current by controlling the switching element to be turned on or off.
  4. 根据权利要求1所述的便携式电源接入装置，其特征在于，A portable power source access device according to claim 1 wherein:
    还包括：Also includes:
    整流滤波电路，电性连接至所述第二线圈；a rectifying and filtering circuit electrically connected to the second coil;
    二次逆变电路，电性连接至所述交流电输出接口；a secondary inverter circuit electrically connected to the alternating current output interface;
    所述整流滤波电路用于将所述第二线圈输出的交流电变为直流电；The rectifying and filtering circuit is configured to convert the alternating current output by the second coil into a direct current;
    所述二次逆变电路用于将所述直流电逆变为相位为定值的交流电。The secondary inverter circuit is configured to invert the direct current into an alternating current whose phase is a fixed value.
  5. 根据权利4所述的便携式电源接入装置，其特征在于，A portable power source access device according to claim 4, wherein
    所述二次逆变电路包括多个开关元件。The secondary inverter circuit includes a plurality of switching elements.
  6. 根据权利要求5所述的便携式电源接入装置，其特征在于，A portable power source access device according to claim 5, wherein
    还包括：Also includes:
    控制器，所述控制器与所述开关元件电性连接，通过控制所述开关元件的导通或关断使得所述二次逆变电路输出相位为定值的交流电。And a controller electrically connected to the switching element, and the secondary inverter circuit outputs an alternating current whose phase is a constant value by controlling the turning on or off of the switching element.
  7. 根据权利要求1所述的便携式电源接入装置，其特征在于，A portable power source access device according to claim 1 wherein:
    还包括： Also includes:
    控制器，用于发送控制信号至所述一次逆变电路或/和所述充电电路；a controller, configured to send a control signal to the primary inverter circuit or/and the charging circuit;
    所述控制器包括：The controller includes:
    充电控制模块，用于控制所述充电电路的工作；a charging control module for controlling the operation of the charging circuit;
    放电控制模块，至少用于控制所述一次逆变电路的工作；a discharge control module for controlling at least the operation of the primary inverter circuit;
    主控模块，依据所接收的所述充电控制模块或/和所述放电控制模块的信号输出控制所述充电控制模块或/和所述放电控制模块的控制信号；The main control module controls the control signals of the charging control module or/and the discharge control module according to the received signal output of the charging control module or/and the discharging control module;
    所述充电控制模块与所述充电电路电性连接，所述放电控制模块与所述一次逆变电路电性连接。The charging control module is electrically connected to the charging circuit, and the discharging control module is electrically connected to the primary inverter circuit.
  8. 根据权利要求1所述的便携式电源接入装置，其特征在于，A portable power source access device according to claim 1 wherein:
    还包括：Also includes:
    交流电输入接口，用于输入交流电；AC input interface for inputting AC power;
    所述交流电输入接口与所述充电电路电性连接。The AC input interface is electrically connected to the charging circuit.
  9. 根据权利要求1所述的便携式电源接入装置，其特征在于，A portable power source access device according to claim 1 wherein:
    还包括：Also includes:
    第一直流转换电路，用于将所述电池包的直流电转换为12V直流电；a first DC conversion circuit for converting direct current of the battery pack into 12V direct current;
    第一直流输出端口，用于输出12V直流电；a first DC output port for outputting 12V DC power;
    所述第一直流转换电路与所述适配接口电性连接；The first DC conversion circuit is electrically connected to the adaptation interface;
    所述第一直流输出端口与所述第一直流转换电路电性连接。The first DC output port is electrically connected to the first DC conversion circuit.
  10. 一种便携式电源接入装置，包括：A portable power access device includes:
    多个适配接口，用于连接多个能为电动工具供电的电池包；a plurality of adapter interfaces for connecting a plurality of battery packs capable of powering the power tool;
    交流电输出接口，用于输出交流电；AC output interface for outputting AC power;
    第一线圈，电性连接至所述适配接口；a first coil electrically connected to the adapter interface;
    第二线圈，电性连接至所述交流电输出接口；a second coil electrically connected to the alternating current output interface;
    充电电路，用于为所述适配接口所连接的电池包充电；a charging circuit, configured to charge a battery pack connected to the adapter interface;
    一次逆变电路，用于在所述第一线圈中产生脉宽变化的交流电；a primary inverter circuit for generating an alternating current having a pulse width variation in the first coil;
    控制器，用于控制所述充电电路同时为多个所述电池包充电；a controller, configured to control the charging circuit to simultaneously charge a plurality of the battery packs;
    其中，所述一次逆变电路分别与所述适配接口和所述第一线圈电性连接；所述充电电路与所述控制器电性连接。The primary inverter circuit is electrically connected to the adapter interface and the first coil respectively; the charging circuit is electrically connected to the controller.
  11. [根据细则91更正 10.08.2017]
    一种便携式电源，包括：
    至少能为一个电动工具供电的电池包；
    适配接口，用于连接所述电池包；
    交流电输出接口，用于输出交流电；
    第一线圈，电性连接至所述适配接口；
    第二线圈，电性连接至所述交流电输出接口；
    充电电路，用于为所述适配接口所连接的电池包充电；
    一次逆变电路，用于在所述第一线圈中产生相位变化的交流电；
    其中，所述一次逆变电路分别与所述适配接口和所述第一线圈电性连接。
    [Correct according to Rule 91 10.08.2017]
    A portable power source that includes:
    a battery pack that can power at least one power tool;
    An adapter interface for connecting the battery pack;
    AC output interface for outputting AC power;
    a first coil electrically connected to the adapter interface;
    a second coil electrically connected to the alternating current output interface;
    a charging circuit, configured to charge a battery pack connected to the adapter interface;
    a primary inverter circuit for generating an alternating current having a phase change in the first coil;
    The primary inverter circuit is electrically connected to the adaptation interface and the first coil, respectively.
PCT/CN2017/088366 2016-06-08 2017-06-15 Portable power supply access apparatus and portable power supply WO2017211323A1 (en)

Priority Applications (4)

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US16/209,306 US10439415B2 (en) 2016-06-08 2018-12-04 Power station
US16/209,529 US10923933B2 (en) 2016-06-08 2018-12-04 Power station
US16/512,555 US11063456B2 (en) 2016-06-08 2019-07-16 Adaptor and power station
US17/347,937 US11296528B2 (en) 2016-06-08 2021-06-15 Adaptor and power station

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CN201610404626 2016-06-08

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US16/209,306 Continuation US10439415B2 (en) 2016-06-08 2018-12-04 Power station

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