CN211405513U - Electric energy system - Google Patents
Electric energy system Download PDFInfo
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- CN211405513U CN211405513U CN201921847415.7U CN201921847415U CN211405513U CN 211405513 U CN211405513 U CN 211405513U CN 201921847415 U CN201921847415 U CN 201921847415U CN 211405513 U CN211405513 U CN 211405513U
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- interface
- battery pack
- direct current
- power supply
- conversion circuit
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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
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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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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- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses an electric energy system, which comprises a battery pack and a battery pack interface, wherein the battery pack interface can be detachably connected with an electric tool; an adapter capable of being electrically connected to a battery pack, comprising: the plug is used for accessing alternating current; the adaptive interface is detachably connected with the battery pack interface; the alternating current-direct current conversion circuit is used for converting alternating current into direct current capable of charging the battery pack; a direct current interface; the first voltage conversion circuit is connected between the adaptive interface and the alternating current interface in series and used for converting direct current output by the battery pack into alternating current output; the alternating current output interface is electrically connected with the first voltage conversion circuit and used for outputting alternating current; the second voltage conversion circuit is connected between the direct current interface and the adaptation interface in series and used for converting the electric energy of the battery pack into electric energy adapted to the external electric device for outputting; and the control module is connected between the direct current interface and the adaptive interface and is connected with the second voltage conversion circuit. The utility model provides an extend electric power system that electric tool battery package used the scene.
Description
Technical Field
The invention relates to an electric energy system, in particular to an electric energy system applied to the field of electric tools.
Background
With the development of power tools, portable power tools have been increasingly used in various fields, such as industry, construction industry, garden machinery industry, and the like. There is an increasing demand for portable power tools.
At present, a battery pack is mostly adopted to supply power for the electric tool. The battery pack can only be adapted to an electric tool, and cannot supply power to external electronic equipment, so that the use scene of the battery pack is limited.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide an electric energy system for expanding the use scene of a battery pack of an electric tool.
In order to achieve the above object, the present invention adopts the following technical solutions:
an electrical energy system comprising: the battery pack comprises a battery pack interface which can be detachably connected with the electric tool; an adapter, comprising: the adaptive interface is used for connecting a battery pack which can be detachably connected with the electric tool; the first voltage conversion circuit is connected between the adapting interface and the alternating current interface in series and used for converting direct current output by the battery pack into alternating current to be output; the alternating current output interface is electrically connected with the first voltage conversion circuit and used for outputting the alternating current; the direct current interface is used for connecting an external electric device or an external power supply device; the output or input power of the direct current interface is more than 10W; the value range of the input or output voltage of the direct current interface is as follows: 5V-20V; the second voltage conversion circuit is connected between the direct current interface and the adaptation interface in series and used for converting the electric energy of the external power supply device into the electric energy output adapted to the battery pack or converting the electric energy of the battery pack into the electric energy output adapted to the external power consumption device; the control module is connected between a direct current interface and the adaptation interface and is connected with the second voltage conversion circuit, and the control module is configured to control the current direction and the output voltage of the voltage conversion circuit according to the signal states of the direct current interface and the adaptation interface;
preferably, the battery pack includes: a guide slot for slidable connection with the adapter; the adaptation interface comprises: the electric connecting terminal is electrically connected with the battery pack terminal; a guide rail for guiding the guide groove slidably coupled to the adapter.
Preferably, the nominal voltage range of the battery pack is: 10V to 120V.
Preferably, the dc interface has two signal states, a charging state and a discharging state.
Preferably, the dc interface includes:
the detection terminal is used for detecting the signal state of the direct current interface;
when the direct current interface is connected with an external power supply device, the detection terminal sends a charging control signal to the control module when detecting that the direct current interface is in a charging state, so that the control module controls the current direction of the voltage conversion circuit to enable the external power supply device to charge the battery pack.
Preferably, the dc interface includes:
the detection terminal is used for detecting the signal state of the direct current interface;
when the direct current interface is connected to an external electric device, the detection terminal sends a discharge control signal to the control module when detecting that the direct current interface is in a discharge state, so that the control module controls the current direction of the voltage conversion circuit and the battery pack charges the external electric device.
Preferably, the adapter further comprises a communication module,
the communication module is arranged to receive the charging control signal from the detection terminal and transmit the charging control signal to the control module;
the control module comprises a main controller which is set to be capable of receiving communication signals of the battery pack information from the battery pack and transmitting the communication signals of the battery pack information to the communication module;
the communication module is configured to receive a communication signal of information related to the battery pack and adjust a voltage, a current, and a power of the external power supply device to charge the battery pack.
Preferably, the control module further comprises:
a bidirectional power supply controller;
the main controller is also arranged to be capable of receiving the charging control signal and outputting a control signal to the bidirectional power supply controller;
the bidirectional power supply controller is arranged to be capable of outputting a power supply control signal to the voltage conversion circuit according to a control signal from the controller so as to control the current direction of the voltage conversion circuit and control the voltage conversion circuit to adjust the voltage value, so that the external power supply device charges the battery pack.
Preferably, the adapter further comprises a communication module configured to receive the discharge control signal from the detection terminal and transmit the discharge control signal to the control module; the communication module is also arranged to receive a communication signal of charging information from an external electric device and transmit the communication signal of the charging information to the control module;
the control module includes: the system comprises a main controller and a bidirectional power supply controller;
the main controller is set to be capable of receiving a discharge control signal and a communication signal of the charging information and outputting a control signal to the bidirectional power supply controller;
the bidirectional power supply controller is arranged to be capable of outputting a power supply control signal to the voltage conversion circuit according to a control signal received from the main controller so as to control the current direction of the voltage conversion circuit and control the voltage conversion circuit to adjust the voltage value, so that the battery pack charges the external power consumption device.
Preferably, when the detection terminal detects a high level, it is determined that the dc interface is in a charging state.
Preferably, the dc interface is determined to be in a discharge state when the detection terminal detects a low level.
The electric energy system expands the use scene of the electric tool battery pack.
Drawings
Fig. 1 is a schematic structural view of a combination of a battery pack and an adapter as one example;
FIG. 2 is a schematic diagram of the construction of a battery pack in the battery pack and adapter combination shown in FIG. 1;
FIG. 3 is a schematic diagram of the structure of an adapter in the battery pack and adapter combination shown in FIG. 1;
FIG. 4 is a schematic view of the battery pack of FIG. 2 in use in combination with a power tool;
FIG. 5 is a powered system having the combination battery pack and adapter of FIG. 1;
FIG. 6 is a circuit block diagram of one of the embodiments of the adapter shown in FIG. 3;
FIG. 7 is a circuit block diagram of a second embodiment of the adapter shown in FIG. 3;
FIG. 8 is a block circuit diagram of a third embodiment of the adapter shown in FIG. 3;
fig. 9 is a schematic configuration diagram of an electric energy system as an example;
fig. 10 is a circuit block diagram of one of the embodiments of the adapter in the power system shown in fig. 9;
fig. 11 is a schematic configuration diagram of an electric power system as an example;
fig. 12 is a schematic diagram of the configuration of the adapter in the power system shown in fig. 11;
FIG. 13 is a circuit block diagram of one of the embodiments of the adapter shown in FIG. 12.
Detailed Description
The invention is described in detail below with reference to the figures and the embodiments.
As shown in fig. 1-4, a battery pack and adapter combination 10 includes a battery pack 11 and an adapter 12. Wherein the battery pack 11 is used for supplying power to the power tool 20 (as shown in fig. 4), the adapter 12 can make the battery pack 11 output power. In some embodiments, the nominal voltage range of the battery pack 11 is: 10V-60V. The electric quantity of the battery pack 20 is equal to or greater than 100Wh and equal to or less than 2000 Wh. It will be appreciated that in some embodiments, the nominal voltage range of the battery pack 11 may also be: 18V-24V, 24V-40V, 40V-60V or 60V-120V.
Referring to fig. 2, the battery pack 11 includes: a battery 111 for storing electrical energy and a first housing 114 containing the battery, a battery pack terminal including a positive terminal 112 of the battery pack and a negative terminal 113 of the battery pack. The battery pack 11 outputs electric power through a positive terminal 112 of the battery pack and a negative terminal 113 of the battery pack. A first coupling portion 115 is formed on the first housing. The first coupling portion 115 is detachably connectable to a coupling portion of the power tool 20 so that the battery pack 11 can supply power to the power tool. The first coupling portion 115 also enables the battery pack 11 to be electrically connected to the adapter 12 when the battery pack 11 is coupled to the adapter 12.
Referring to fig. 3, the adapter 12 includes: a second housing 122 and an interface 124. The second housing 122 is formed with a fitting interface 121, and the fitting interface 121 includes an electrical connection terminal 121 and a second coupling portion 123. The second coupling portion 123 may be coupled to the first coupling portion 115 of the battery pack, and when the first coupling portion 115 of the battery pack is coupled to the second coupling portion 123, the positive terminal 112, the negative terminal 113, and the electrical connection terminal 121 of the power source are connected to receive or output electrical energy. In some embodiments, the second coupling portion 123 forms a slot in which the electrical connection terminal 121 is disposed, and in other embodiments, the first coupling portion forms a guide groove, and the second coupling portion is provided with a guide rail to be coupled to the adapter in cooperation with the guide groove such that the battery pack can be slidably coupled along the slide rail. An interface 124 that can be charged and discharged is also provided on the second housing. The interface 124 connects an external power-using device or an external power-supplying device.
Referring to fig. 5, a power utilization system 30 is shown, the power utilization system 30 comprising: a battery pack 31, a first adapter 301, a second adapter 32, and an external power consumption device 302.
The battery pack 31 is used at least for supplying power to the power tool; the battery pack comprises a battery pack interface which can be detachably connected with the electric tool;
the first adaptor 301 comprises a power plug, an ac input interface, an ac-dc conversion circuit and a dc output interface.
Wherein, the power plug is used for inserting alternating current, and in some embodiments, the alternating current plug is plugged into an alternating current socket to insert alternating current commercial power. The value range of the alternating current accessed by the plug is 110V-130V or 210V-230V. The alternating current input interface is electrically connected with the plug to access alternating current; the alternating current-direct current conversion circuit is electrically connected with the alternating current input interface so as to convert alternating current into direct current; the direct current output interface is electrically connected with the alternating current-direct current conversion circuit to output direct current. In this embodiment, the first adapter 301 can directly supply power to an electronic terminal such as a notebook computer, a mobile phone, or a mobile power supply.
The second adapter 32 can be electrically connected to the battery pack 31, and can charge the battery pack 31 with a charging power greater than 10W. The second adapter comprises an adapter interface and a first direct current interface 321, the adapter interface is detachably connected with the battery pack 31 interface, and the first direct current interface 321 is electrically connected with the direct current output interface, wherein the value range of the input and output voltage of the first direct current interface 321 is 5V-20V, and the value range of the input and output power of the first direct current interface 321 is greater than 10W.
In some embodiments, the second adapter further comprises a second dc interface 322, and the second dc interface 322 is connected to the external power consumer 302 to provide dc power from the first adapter or power from the battery pack to the external power consumer simultaneously. In some embodiments, the output power of the second dc interface has a value range greater than 10W; the value range of the discharge voltage of the second direct current interface is as follows: 5V to 20V. In some embodiments, the external powered device 302 is a mobile phone, a tablet computer, wearable equipment, or the like.
The adapter 32 is configured with a first dc interface 321 and a second dc interface 322, when the electric quantity of the mobile phone is insufficient, the first dc interface 321 is connected with the adapter of the notebook computer, the second interface is connected with the notebook computer, and the notebook computer and the battery pack are charged by the ac power connected with the adapter of the notebook computer.
Referring to fig. 6, a block diagram of an adapter as an embodiment is shown. The adapter 40 includes a first dc interface 42, an adapter interface 41, and a circuit board 44.
The adapter interface 41 is used for electrically connecting the battery pack.
The first dc interface 42 is used to connect the external power consumption device 401 or the external power supply device 402. The first dc interface has two signal states, a charging state and a discharging state, and receives the power from the external power supply device 402 to charge the battery pack when the first dc interface is in the charging state, and provides the power of the battery pack to the external power consumption device 401 when the first dc interface 42 is in the discharging state. The first dc interface 42 includes a positive terminal 421, a negative terminal 422, and a detection terminal 423. The positive terminal 421 and the negative terminal 422 are used for inputting or outputting electric energy, the detection terminal 423 is used for detecting a signal state of the dc interface, and the first dc interface 42 has a charging state, a discharging state, and an idle state. When the first dc interface 42 is connected to the external power supply device 402, the detection terminal 423 detects that the dc interface 42 is in a charging state, and sends a charging control signal to the circuit board, so that the external power supply device charges the battery pack. When the first dc interface 42 is connected to the external power consumption device 401, the detection terminal 423 detects that the dc interface 42 is in a discharge state, and sends a discharge control signal to the circuit board 44, so that the battery pack charges the external power consumption device 401.
The circuit board 44 is connected in series between the adapter interface 41 and the first dc interface 42. As one of specific embodiments, the circuit board 44 is provided with a controller 441, a first communication module 442, a bidirectional power supply controller 443, and a voltage conversion circuit 444.
When the first dc interface 42 is connected to the external power supply device, the detection terminal 423 detects that the first dc interface 42 is in the charging state and sends the charging control signal to the voltage conversion circuit 444, and specifically, the detection terminal 423 detects that the first dc interface 42 is in the charging state and sends the charging control signal to the first communication module 442.
The first communication module 442 receives the charge control signal from the detection terminal 423 and transmits the charge control signal to the controller 441. The controller 441 receives a battery pack communication signal from the battery pack related information and passes the battery pack communication signal to the first communication module 442. The first communication module 442 receives a communication signal of information about the battery pack from the controller and adjusts the voltage, current, and power of the external power supply 402.
The controller 441 also receives the charging control signal from the first communication module 442 and outputs a control signal to the bidirectional power supply controller 443; the bidirectional power supply controller 443 receives the control signal from the controller 441 to output a power supply control signal to the voltage conversion circuit to control the current direction of the voltage conversion circuit 444 and control the voltage conversion circuit 444 to adjust the power of the external power supply device 401 to form a power output adapted to the battery pack, so that the external power supply device 401 charges the battery pack. In some embodiments, the bi-directional power controller 443 receives the control signal from the controller 441 and outputs the reference voltage to the voltage conversion circuit 444, so as to control the current direction of the voltage conversion circuit 444. For example, when the external power supply device 402 is connected to the first dc interface 42, the pin CS of the bidirectional power supply controller outputs a positive voltage to the voltage conversion circuit, so that the external power supply device 402 charges the battery pack. When the external power device 401 is connected to the first dc interface, the CS pin of the bidirectional power supply controller outputs a negative voltage to the voltage conversion circuit, so that the battery pack charges the external power device 401.
And a voltage conversion circuit 444 for adapting the voltage of the first dc interface 42 to the battery pack voltage.
In some embodiments, the test terminal 423 of the first dc interface 42 includes pins CC1 and CC2, and pins CC1 and CC2 are control pins that generate the same communication signal. The positive terminal 421 is a VBUS pin, which is a power supply pin, and the negative terminal 422 is a GND pin, which is a ground pin. The pins CC1 and CC2 are used for judging whether the equipment connected to the first direct current interface is an external power supply device or an external power utilization device, and the change of the states of the pins CC1 and CC2 is detected by the first communication module. When the pin CC1 is in the idle state and the pin CC2 is in the idle state, no device is connected. When the external power supply device 402 is connected to the first interface 42, the CC1 and the CC2 pins detect a high level, the external power supply device 402 is equivalent to a pull-up resistor, it is determined that the first interface 42 is a power supply side, the battery pack is equivalent to a pull-down resistor, it is determined that the battery pack is a power receiving side, the controller 441 obtains current charging information of the battery pack, the current charging information is transmitted to the first communication module 442 through the SDA pin and the SCL pin of the controller 441, the first communication module 442 adjusts the voltage, the current and the power of the external power supply device, and the external power supply device charges the battery pack by matching the voltage of the battery pack through the voltage conversion module 444. The standard voltage range of the first dc interface 42 is 5V to 20V, and a voltage of 5V to 20V can be continuously adjusted and any maximum source output power of 10W to 100W can be supported.
When the external electric device 401 is connected to the first dc interface 42, the CC1 and the CC2 pins detect a low level, the external electric device 401 corresponds to a pull-down resistor, the first dc interface 42 is determined as a power receiving side, the battery pack corresponds to a pull-up resistor and is determined as a power supplying side, the first communication module 442 detects a change in the state of the CC1 and the CC2 pins, transmits a signal to the controller 441 through the SCL pin and the SDA pin, the controller 441 outputs a control signal to the bidirectional power supply controller 443, the bidirectional power supply controller receives the control signal to control the current direction of the voltage conversion circuit 444, and the voltage conversion circuit 444 matches the discharge voltage of the battery pack with the charge voltage required by the external electric device 401 to charge the external electric device 401.
In this way, an adapter as shown in fig. 1 is provided, which can discharge through the first direct current interface to charge the external device. For example, the adapter may be used to output power stored in a battery pack for charging an external device such as a smartphone or a laptop computer. The practical scene of the battery pack is expanded. The battery pack can also be charged through the first direct current interface, so that the use by a user is facilitated. Meanwhile, the adapter uses a bidirectional power supply controller, and the charging and discharging control is realized through the same controller, so that the introduction of other operational amplifier circuits is reduced, the circuit structure is simplified, and the adapter can realize the charging and discharging with the high power of more than 10W.
In some embodiments, the controller 441, the first communication module 442, and the bidirectional power supply controller 443 may be integrated into one System On Chip (SOC).
An adapter 50 is shown in fig. 7 as one embodiment. In contrast to the embodiment shown in fig. 6, the adapter 50 comprises a first dc interface 52 and a second dc interface 53. The adapter 50 further comprises: a discharge circuit 55 and a charge circuit 56.
The first dc interface 52 is an interface capable of realizing charging and discharging with a large power greater than 10W, and is the same as the first dc interface 42 of the adapter 40 in the embodiment shown in fig. 6.
The second dc interface 53 is used to connect the external power consumption device 501 to supply electric power to the external power consumption device 501. The second dc interface 53 is an interface supplying power to an external device, and has an operating power of 5V/2A.
The discharging circuit 55 is used for converting the electric energy output by the adapting interface 51 into a voltage output matched with the second interface 53; the discharge circuit 55 is disposed on the circuit board 54 in series between the adapter interface 51 and the second dc interface 53. The discharging circuit 55 includes a second communication module 551 and a second voltage converting circuit 552.
The charging circuit 56 is configured to convert the power of the external power supply device 502 connected to the first interface 52 to charge the battery pack through the external power supply device 502, and the charging circuit 56 is connected in series between the adapter interface 51 and the first dc interface 52.
In some embodiments, a second detection terminal 58 is disposed within the second dc interface 53. The second detection terminal 58 is used to detect the interface state of the second dc interface 53. The interface states of the second dc interface 53 include a vacant state and a discharge state. When the external power consumption device is connected to the second dc interface, the second detection terminal 58 detects the discharge state and transmits a communication signal to the second communication module 551.
The second communication module 551 receives a communication signal of the state information from the second dc interface 53, and transfers the communication signal to the second voltage conversion circuit 552.
The second voltage conversion circuit 552 receives the status signal from the second dc interface of the second communication module 551, and converts the battery pack voltage into a voltage suitable for the external power consumption device 501.
The first charging circuit 56 includes a first communication module 561, a controller 562, a bidirectional power supply controller 563, and a first voltage conversion circuit 564.
The first voltage conversion circuit 56 is connected in series between the first dc interface 52 and the adapter interface 51, and is used for converting the power of the external power supply device 502 into the power output of the adapter battery pack. The first voltage conversion circuit 564 converts the voltage of the first dc interface 52 to be adapted to the battery pack voltage.
When the first dc interface 52 is connected to the external power supply device 502, the detection terminal 57 detects a high level, determines that the first dc interface is in a charging state, and sends a charging control signal to the first communication module 561.
The first communication module 561 receives the charging control signal from the detection terminal 57 and transfers the charging control signal to the main controller 562. The main controller 562 is configured to be able to receive a communication signal regarding the battery pack-related information from the battery pack and transfer the communication signal of the battery pack information to the first communication module 561. The first communication module 561 receives a communication signal of information about the battery pack from the main controller 562 and adjusts the voltage, current, and power of the external power supply device 502.
The main controller 562 is further configured to receive the charging control signal from the first communication module 561 and output a control signal to the bidirectional power supply controller 563; the bidirectional power supply controller 563 is capable of outputting a power supply control signal to the first voltage conversion circuit 564 according to a control signal from the main controller 562 to control a current direction of the first voltage conversion circuit 564 and control the voltage conversion circuit 564 to adjust the power of the external power supply device 502 to adapt to the power output of the battery pack so that the external power supply device 502 charges the battery pack. In some embodiments, the bidirectional power supply controller 563 receives a control signal from the main controller 562, and outputs a reference voltage to the first voltage converting circuit 564 to control the current direction of the first voltage converting circuit 564. For example, when the external power supply device 502 is connected to the first interface 52, the CS pin of the bidirectional power supply controller 563 outputs a positive voltage to the voltage conversion circuit, so that the external power supply device 502 charges the battery pack.
In some embodiments, a first detection terminal 57 is disposed in the first dc interface 52 for detecting a signal state of the first dc interface 52, and a second detection terminal 58 is disposed in the second dc interface 53 for detecting an interface state of the second dc interface. When the external power consumption device 501 is inserted into the second dc interface 53 and the external power supply device 502 is inserted into the first dc interface 52, the second detection terminal 58 detects that the power consumption device is inserted, the first detection terminal 523 detects a high level, and it is determined that the first dc interface 52 is in the charging state, and the first dc interface 52 is determined as the power supply side. The controller 562 obtains the current charging information of the battery pack and transmits the current charging information to the first communication module 561 through the SDA pin and the SCL pin of the controller 562, the first communication module 561 adjusts the voltage, the current and the power of the external power supply device 502, and the external power supply device 502 matches the voltage of the battery pack and/or the external electric device 501 through the first voltage conversion circuit 564 to charge the battery pack and/or the external electric device 501. For example, the external power supply provides 40W of charging power to the battery pack at 20V/3A, while providing 20W of charging power to the first consumer device.
In this way, when the first dc interface is connected to the external power supply device, and the second dc interface is connected to the external power consumption device, the external power supply device charges the battery pack through the first dc interface, and meanwhile, the external power supply device also charges the external power consumption device through the second dc interface. Thus, the external power consumption device and the battery pack can be charged at the same time through the adapter. The charging circuit and the discharging circuit are divided into 2 sets of circuits, interference between the circuits can be reduced, and each interface can work independently.
As shown in the adaptor 60 of fig. 8, in some embodiments, when the first electrical device 601 is plugged into the second dc interface 63 and the first dc interface 62 is also plugged into the second electrical device 602, the first detection terminal 67 determines that the first dc interface 62 is in a discharging state, the main controller 662 obtains the current charging information of the first dc interface 62 through the first communication module 661, the battery pack matches the voltages of the first electrical device 601 and the second electrical device 602 through the second voltage converting circuit 652 and the first voltage converting circuit 664, and the battery pack outputs power to the first electrical device 601 and the second electrical device 602 at the same time.
Specifically, when the second electrical device is plugged into the first interface 62 and the detection terminal 67 detects a low level to determine that the first dc interface 62 is in a discharging state, the discharging control signal is sent to the first communication module 661.
The first communicating module 661 is configured to receive the discharge control signal from the detecting terminal 67 and transmit the discharge control signal to the main controller 662; the first communication module 661 is further configured to receive a communication signal of the charging information from the external electric device 602 and transmit the communication signal of the charging information to the main controller 662.
The main controller 662 is configured to receive a discharge control signal and a communication signal of the charging information and output a control signal to the bidirectional power supply controller 663;
the bidirectional power supply controller 663 is configured to output a power supply control signal to the first voltage converting circuit 664 according to a control signal received from the main controller 662 to control the current direction of the first voltage converting circuit 664 and control the first voltage converting circuit 664 to adjust the voltage value so that the battery pack charges the external power consumption device 602.
As one of the possible embodiments, the controller 662, the first communication module 661, the bidirectional power supply controller 663 may be integrated into one System On Chip (SOC); the main controller 662 and the bidirectional power supply controller 663 may also be integrated into one control module.
In this way, when the first direct current interface is connected to the external power consumption device and the second direct current interface is connected to the external power consumption device, the battery pack can simultaneously charge different external power consumption devices through the adapter, the use scene of the battery pack is expanded, and the battery pack is convenient for users to use. Meanwhile, the discharge circuits of the two interfaces are divided into 2 sets of circuits, interference between the circuits can be reduced, and each interface can work independently.
As an embodiment of the power system 200, as shown in fig. 9, the power system 200 includes: an adapter 210 and two battery packs 220, 230.
The battery pack 220 or the battery pack 230 may be the same battery pack or different battery packs, and they can both supply power to a dc power tool.
Specifically, the adapter 210 can include a housing 211, and the housing 211 can form a mating interface that mates with the junction of the battery pack 220 to enable the battery pack to be removably connected to the adapter 210. As shown in fig. 10, the adapter 210 further includes an inverter 218 and a rectifier 217, wherein the inverter 218 can convert the dc power output from the battery pack connected to the adapter 210 into ac power. The rectifier 217 can convert the ac power received by the adapter 210 into dc power that can charge the battery pack. The inverter 218 and the rectifier 217 are each constituted by respective circuit boards and circuit elements, and the circuit boards and the circuit elements constituting the inverter are accommodated in an accommodating chamber formed by the housing 211.
The adapter 210 also includes an ac input interface 214 that enables the adapter 210 to access ac power in the power grid. Specifically, the ac input interface 214 may be configured as a power plug as shown in fig. 13, which is advantageous in that it can ensure safety; the switch can also be constructed into a common alternating current interface, so that users can conveniently select power lines with different lengths for switching. The adapter 210 can charge the battery pack connected with the adapter by the accessed alternating current; specifically, the ac input interface 214 is electrically connected to the rectifier 217, so that ac power inputted from the ac input interface 214 is converted into dc power to charge the battery pack.
The adapter 210 further includes a voltage conversion circuit and a dc interface, which is the same type of interface as the first dc interface 42 in fig. 6 and is used for accessing an external power device to enable the adapter 210 to output power or an external power device to charge the battery pack. The voltage conversion circuit is connected between the direct current interface and the adapting interface in series and used for converting the electric energy of the battery pack into the electric energy output adapted to the external electric device or converting the electric energy of the external power supply device into the electric energy output adapted to the battery pack. In some embodiments, the adapter 210 includes a first dc interface 215 and a second dc interface 216, the first dc interface 215 is an interface capable of realizing high power charging and discharging of more than 10W, and the second dc interface 216 is an interface with an operating power of 5V/2A. Specifically, the first dc interface 215 may be connected to a notebook adapter, a charging terminal of a mobile phone, or a mobile power source to charge a battery pack. The second dc interface 216 may be used to charge an electric device such as a notebook computer or a mobile phone.
The adapter 210 further comprises a control module connected between the dc interface and the adapter interface and connected to the voltage conversion circuit, wherein the control module is configured to control a current direction and an output voltage of the voltage conversion circuit according to signal states of the dc interface and the adapter interface.
Referring to fig. 11, 12, a portable electrical energy system 200' includes: an adapter 240 and a battery pack 250.
The battery pack 250 can supply power to a dc power tool. Specifically, the battery pack 250 includes: a battery cell (not shown), and a first case 251, the battery cell (not shown) being accommodated in the first case 251. The battery cell (not shown) is used to store energy, which can be repeatedly charged and discharged. The battery core (not shown) may be selected from a lithium ion battery, and may also be selected from a graphene battery. The first case 251 is used to accommodate a battery cell (not shown) and other components in the battery pack 250, and the first case 251 is formed with a coupling portion by which the battery pack 250 can be coupled to an electric power tool.
The adapter 240 can incorporate the battery pack 250 described above such that the battery pack 250 outputs ac power and/or dc power through the adapter 240.
As shown in fig. 13, the adapter 240 further includes an AC power output interface 241 for outputting AC power, thereby enabling the portable electric power system 200' to function as an AC power source. The ac output interface 241 is electrically connected to the inverter 244 to output ac power. In some embodiments, AC power output interface 241 is configured as an electrical outlet as shown in fig. 13, designed to the same specification as a local general mains outlet, enabling the portable power supply system to power general AC consumers. In some embodiments, the adaptor 200 includes an AC power output interface 241 for outputting 110-130V AC power or 210-230V AC power. In some embodiments, the adaptor 240 includes two AC power output interfaces 241 for outputting 110-130V AC power or 210-230V AC power, respectively.
The adapter 240 further includes a voltage conversion circuit and a dc interface, which is the same type of interface as the first dc interface 42 in fig. 6, and is used for accessing an external power device to enable the adapter 210 to output power or an external power device to charge the battery pack. In some embodiments, the adapter 240 includes a first dc interface 242 and a second dc interface 243, and the first voltage conversion circuit 245 and the second voltage conversion circuit 246 are used to convert the dc power output from the battery pack 250 into a dc power output having a certain voltage or to electrically convert an external power supply into a power output adapted to the battery pack. The first dc interface 242 is an interface capable of realizing charging and discharging with a large power greater than 10W, and the second dc interface 243 has an operating power of 5V/2A. Specifically, the first dc interface 242 may be connected to a notebook adapter, a charging terminal of a mobile phone, or a mobile power source to charge a battery pack. The second dc interface 243 can be used to charge an electric device such as a notebook computer or a mobile phone.
The adapter 240 further comprises a control module 247 connected between the dc interface and the adapter interface and connected to the voltage conversion circuit, the control module being configured to control the current direction and the output voltage of the voltage conversion circuit according to the signal states of the dc interface and the adapter interface.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent variations fall within the scope of the present invention.
Claims (10)
1. An electrical energy system, comprising:
the battery pack comprises a battery pack interface which can be detachably connected with the electric tool;
an adapter, comprising:
the adaptive interface is used for connecting a battery pack which can be detachably connected with the electric tool;
the first voltage conversion circuit is connected between the adaptive interface and the alternating current output interface in series and used for converting direct current output by the battery pack into alternating current to be output;
the alternating current output interface is electrically connected with the first voltage conversion circuit and used for outputting the alternating current;
the direct current interface is used for connecting an external electric device or an external power supply device; the output or input power of the direct current interface is more than 10W; the value range of the input or output voltage of the direct current interface is as follows: 5V-20V;
the second voltage conversion circuit is connected between the direct current interface and the adaptation interface in series and used for converting the electric energy of the external power supply device into the electric energy output adapted to the battery pack or converting the electric energy of the battery pack into the electric energy output adapted to the external power consumption device;
and the control module is connected between the direct current interface and the adaptive interface and is connected with the second voltage conversion circuit, and the control module can control the current direction and the output voltage of the voltage conversion circuit according to the signal states of the direct current interface and the adaptive interface.
2. The electrical energy system of claim 1,
the battery pack includes: a guide slot for slidable connection with the adapter;
the adaptation interface comprises:
the electric connecting terminal is electrically connected with the battery pack terminal;
a guide rail for guiding the guide groove slidably coupled to the adapter.
3. The electrical energy system of claim 1,
the nominal voltage range of the battery pack is as follows: 10V to 120V.
4. The electrical energy system of claim 1,
the direct current interface has two signal states of a charging state and a discharging state.
5. The electrical energy system of claim 1 or 4,
the direct current interface includes:
the detection terminal is used for detecting the signal state of the direct current interface;
when the direct current interface is connected with an external power supply device, the detection terminal sends a charging control signal to the control module when detecting that the direct current interface is in a charging state, so that the control module controls the current direction of the voltage conversion circuit to enable the external power supply device to charge the battery pack;
when the direct current interface is connected to an external electric device, the detection terminal sends a discharge control signal to the control module when detecting that the direct current interface is in a discharge state, so that the control module controls the current direction of the voltage conversion circuit and the battery pack discharges the external electric device.
6. The electrical energy system of claim 5,
the adapter also includes a communication module that is,
the communication module is arranged to receive the charging control signal from the detection terminal and transmit the charging control signal to the control module;
the control module comprises a main controller which is set to be capable of receiving communication signals of the battery pack information from the battery pack and transmitting the communication signals of the battery pack information to the communication module;
the communication module can receive a communication signal of the information related to the battery pack and adjust the voltage, the current and the power of the external power supply device to charge the battery pack.
7. The electrical energy system of claim 6,
the control module further comprises:
a bidirectional power supply controller;
the main controller can also receive the charging control signal and output a control signal to the bidirectional power supply controller;
the bidirectional power supply controller can output a power supply control signal to the voltage conversion circuit according to a control signal from the controller so as to control the current direction of the voltage conversion circuit and control the voltage conversion circuit to adjust the voltage value, so that the external power supply device charges the battery pack.
8. The electrical energy system of claim 5,
the adapter further comprises a communication module, wherein the communication module can receive the discharge control signal from the detection terminal and transmit the discharge control signal to the control module; the communication module can also receive a communication signal of charging information from an external electric device and transmit the communication signal of the charging information to the control module;
the control module includes: the system comprises a main controller and a bidirectional power supply controller;
the main controller can receive a discharge control signal and a communication signal of the charging information and output a control signal to the bidirectional power supply controller;
the bidirectional power supply controller can output a power supply control signal to the voltage conversion circuit according to a control signal received from the main controller so as to control the current direction of the voltage conversion circuit and control the voltage conversion circuit to adjust the voltage value, so that the battery pack charges the external power utilization device.
9. The electrical energy system of claim 5,
and when the detection terminal detects a high level, the direct current interface is judged to be in a charging state.
10. The electrical energy system of claim 5,
and when the detection terminal detects a low level, the direct current interface is judged to be in a discharging state.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2019105180431 | 2019-06-14 | ||
| CN201910518043 | 2019-06-14 |
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| CN211405513U true CN211405513U (en) | 2020-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911047624.8A Pending CN112087016A (en) | 2019-06-14 | 2019-10-30 | Adapter |
| CN201921846186.7U Active CN211405512U (en) | 2019-06-14 | 2019-10-30 | Adapter |
| CN201921847415.7U Active CN211405513U (en) | 2019-06-14 | 2019-10-30 | Electric energy system |
| CN201911045908.3A Active CN112087014B (en) | 2019-06-14 | 2019-10-30 | Combination of battery pack and adapter |
| CN201911047542.3A Active CN112087015B (en) | 2019-06-14 | 2019-10-30 | Combination of battery pack and adapter |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911047624.8A Pending CN112087016A (en) | 2019-06-14 | 2019-10-30 | Adapter |
| CN201921846186.7U Active CN211405512U (en) | 2019-06-14 | 2019-10-30 | Adapter |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911045908.3A Active CN112087014B (en) | 2019-06-14 | 2019-10-30 | Combination of battery pack and adapter |
| CN201911047542.3A Active CN112087015B (en) | 2019-06-14 | 2019-10-30 | Combination of battery pack and adapter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114649838A (en) * | 2020-12-18 | 2022-06-21 | 南京泉峰科技有限公司 | Charging system and electric tool system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114649858A (en) * | 2020-12-18 | 2022-06-21 | 南京泉峰科技有限公司 | Charging system and charger |
| CN115528757A (en) * | 2021-06-24 | 2022-12-27 | 南京泉峰科技有限公司 | Electric tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040145348A1 (en) * | 2000-09-21 | 2004-07-29 | Constantin Bucur | Power management topologies |
| US7545120B2 (en) * | 2003-07-29 | 2009-06-09 | Dell Products L.P. | AC-DC adapter and battery charger integration for portable information handling systems |
| CN200983511Y (en) * | 2006-09-18 | 2007-11-28 | 曾灿辉 | A portable AC power device |
| JP5461221B2 (en) * | 2010-02-12 | 2014-04-02 | 株式会社マキタ | Electric tool powered by multiple battery packs |
| CN105529802B (en) * | 2014-09-29 | 2019-01-04 | 南京德朔实业有限公司 | A kind of charging system |
| CN204597589U (en) * | 2015-04-16 | 2015-08-26 | 安克科技有限公司 | Charger and AC-DC thereof change module and DC-to-DC conversion module |
| CN115663817A (en) * | 2015-06-11 | 2023-01-31 | 苏州宝时得电动工具有限公司 | Electric energy transmission device, control method thereof and power supply system |
| CN205123370U (en) * | 2015-11-06 | 2016-03-30 | 联想(北京)有限公司 | Adapter of quick charge |
| WO2017167210A1 (en) * | 2016-03-30 | 2017-10-05 | 南京德朔实业有限公司 | Charging system for automobile battery, conversion device, and charging method |
| CN107394833A (en) * | 2016-05-16 | 2017-11-24 | 南京德朔实业有限公司 | Adapter, supply unit and the guard method put excessively |
| CN108233441B (en) * | 2016-12-14 | 2020-01-10 | 常州格力博有限公司 | Power adapter and tool driven by alternating current and direct current power supply |
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2019
- 2019-10-30 CN CN201911047624.8A patent/CN112087016A/en active Pending
- 2019-10-30 CN CN201921846186.7U patent/CN211405512U/en active Active
- 2019-10-30 CN CN201921847415.7U patent/CN211405513U/en active Active
- 2019-10-30 CN CN201911045908.3A patent/CN112087014B/en active Active
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114649838A (en) * | 2020-12-18 | 2022-06-21 | 南京泉峰科技有限公司 | Charging system and electric tool system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112087014A (en) | 2020-12-15 |
| CN112087015B (en) | 2023-04-14 |
| CN112087015A (en) | 2020-12-15 |
| CN112087016A (en) | 2020-12-15 |
| CN211405512U (en) | 2020-09-01 |
| CN112087014B (en) | 2023-09-12 |
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Address after: 211106 No. 529, 159, Jiangjun Avenue, Jiangning District, Nanjing, Jiangsu Province Patentee after: Nanjing Quanfeng Technology Co.,Ltd. Address before: No. 529, Jiangjun Avenue, Jiangning Economic and Technological Development Zone, Nanjing, Jiangsu Province Patentee before: NANJING CHERVON INDUSTRY Co.,Ltd. |