CN115173534A - Outdoor power supply device, capacity-expanded battery device and outdoor power supply assembly - Google Patents

Outdoor power supply device, capacity-expanded battery device and outdoor power supply assembly Download PDF

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Publication number
CN115173534A
CN115173534A CN202211081710.2A CN202211081710A CN115173534A CN 115173534 A CN115173534 A CN 115173534A CN 202211081710 A CN202211081710 A CN 202211081710A CN 115173534 A CN115173534 A CN 115173534A
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CN
China
Prior art keywords
expansion port
battery
control module
power supply
battery pack
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Granted
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CN202211081710.2A
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Chinese (zh)
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CN115173534B (en
Inventor
陈雄伟
邓勇明
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Shenzhen Cpkd Technology Co ltd
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Shenzhen Cpkd Technology Co ltd
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Priority to CN202211081710.2A priority Critical patent/CN115173534B/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
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • 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
    • H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • 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
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00304—Overcurrent protection
    • 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
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • H02J7/007182—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
    • 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
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/342—The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging
    • 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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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The invention provides an outdoor power supply device, a capacity expansion battery device and an outdoor power supply assembly. Wherein, outdoor power supply unit is applied to outdoor power supply module, outdoor power supply module still includes the dilatation battery device, the dilatation battery device has second dilatation port and the second battery module of being connected rather than the electricity, outdoor power supply unit includes battery module, dilatation port and host system, be provided with the battery package in the battery module, direct current bus and switch module, it has switch module to establish ties on the route between battery package and the direct current bus, the dilatation port is connected with the direct current bus electricity, the dilatation port is used for being connected with the second dilatation port electricity of dilatation battery device, but host system is connected with plug switch module and dilatation port electricity respectively. The invention realizes the capacity expansion of the outdoor power supply device.

Description

Outdoor power supply unit, capacity-expanding battery device and outdoor power supply assembly
Technical Field
The invention relates to the field of bus outdoor power supply devices, in particular to an outdoor power supply device, a capacity expansion battery device and an outdoor power supply assembly.
Background
The existing outdoor power supply device usually adopts a battery in the device as a power supply source, and the endurance time of the external power supply is restricted by the capacity of a battery pack in the device, so that the outdoor power supply device is inconvenient for users to use flexibly.
Disclosure of Invention
The invention mainly aims to provide an outdoor power supply device, a capacity expansion battery device and an outdoor power supply assembly, and aims to realize capacity expansion of the outdoor power supply device.
To this end, the present invention provides an outdoor power supply device, which is applied to an outdoor power supply assembly, the outdoor power supply assembly further includes a capacity expansion battery device, the capacity expansion battery device has a second capacity expansion port and a second battery module electrically connected thereto, and the outdoor power supply device includes:
the battery module is internally provided with a battery pack, a direct current bus and a switch assembly, and the switch assembly is connected in series on a path between the battery pack and the direct current bus;
the expansion port is electrically connected with the direct current bus and is used for being electrically connected with a second expansion port of the expansion battery device in a pluggable manner; when the capacity expansion port is connected with the second capacity expansion port, the direct current bus and the second battery module establish an electric connection path;
the main control module is respectively electrically connected with the switch assembly and the expansion port, and is used for controlling the switch assembly to be in a closed state when the expansion port is confirmed to be connected with the second expansion port of the expansion battery device, so that the battery pack and the second battery module of the expansion battery device are connected in parallel.
Optionally, the capacity-expansion battery device further includes a second main control module, the second capacity-expansion port includes a power end and a communication end, the second main control module is electrically connected to the communication end of the second capacity-expansion port, the second battery module is electrically connected to the power end of the capacity-expansion port, and the capacity-expansion port includes:
the power end of the capacity expansion port is electrically connected with the direct current bus;
the communication end of the capacity expansion port is electrically connected with the main control module;
when the capacity expansion port is connected with the second capacity expansion port, the power end of the capacity expansion port and the power end of the second capacity expansion port establish an electrical connection path, and the communication end of the capacity expansion port and the communication end of the second capacity expansion port establish an electrical connection path.
Optionally, the main control module further has an electric quantity signal receiving terminal for receiving a voltage signal of the battery pack; the main control module is further configured to output a battery pack voltage signal to the second main control module through the communication terminal of the expansion port when it is determined that the communication connection between the expansion port and the second main control module is established, so that the second main control module determines a voltage value of the battery pack;
the main control module is also provided with a state receiving end for receiving a battery pack state signal, and when the battery pack is determined to be in a discharging state and the capacity expansion port is determined to be connected with the second capacity expansion port according to the battery pack state signal, the discharging state signal is output through the communication end of the capacity expansion port; and the expansion port is also used for outputting a charging state signal through a communication end of the expansion port when the battery pack is determined to be in a charging state and the expansion port is determined to be connected with the second expansion port according to the battery pack state signal.
Optionally, the capacity expansion port further includes: the system comprises a first access detection end and a second access detection end; the first access detection end and the second access detection end are respectively and electrically connected with the main control module;
the main control module is used for controlling the switch assembly to be in an open state when the first access detection end and the second access detection end are not in a short-circuit state, so as to disconnect a passage between the battery pack and the direct-current bus;
the main control module is further configured to control the switch assembly to be in a closed state when the first access detection end and the second access detection end are confirmed to be in a short-circuit state;
the outdoor power supply apparatus further includes: a shield;
the shielding piece is detachably connected with the expansion port to cover/expose the expansion port; the shielding part orientation one side of dilatation port is provided with the short circuit piece, works as the shielding part covers when the dilatation port is connected, first access test end with the second access test end all with the short circuit piece is hugged closely in order to realize mutual short circuit.
Optionally, the battery module further includes:
the current limiting module is connected in series on a path between the switch assembly and the direct current bus, and is used for enabling a current value flowing into the battery pack to be smaller than or equal to a preset current value.
The invention also provides a capacity-expansion battery device, which is applied to an outdoor power supply assembly, the outdoor power supply assembly further comprises an outdoor power supply device, the outdoor power supply device is provided with a capacity-expansion port and a battery module electrically connected with the capacity-expansion port, and the capacity-expansion battery device comprises:
the second battery module is internally provided with a second battery pack, a second direct-current bus and a second switch assembly, and the second switch assembly is connected in series on a path between the second battery pack and the second direct-current bus;
the second capacity expansion port is electrically connected with the second direct current bus and is used for being electrically connected with the capacity expansion port of the outdoor power supply device in a pluggable mode; when the capacity expansion port is connected with the second capacity expansion port, the second direct current bus and the battery module establish an electric connection path;
the second main control module is respectively electrically connected with the second switch assembly and the second expansion port, and is used for confirming that the second expansion port is connected with the expansion port of the outdoor power supply device, and controlling the second switch assembly to be in a closed state so as to enable the second battery pack to be connected with the battery module of the outdoor power supply device in parallel.
Optionally, the outdoor power supply device further includes a main control module, the capacity expansion port includes a power end and a communication end, the main control module is electrically connected to the communication end of the capacity expansion port, the battery module is electrically connected to the power end of the capacity expansion port, and the second capacity expansion port includes:
the power supply end of the second expansion port is electrically connected with the second direct current bus;
the communication end of the second expansion port is electrically connected with the second main control module;
when the capacity expansion port is connected with the second capacity expansion port, a power end of the capacity expansion port and a power end of the second capacity expansion port establish an electrical connection path, and a communication end of the capacity expansion port and a communication end of the second capacity expansion port establish an electrical connection path;
and the second main control module is used for establishing communication connection with the main control module through the second capacity expansion port.
Optionally, the second main control module has an electric quantity signal receiving end for receiving a second battery pack voltage signal, and the second main control module is further configured to compare voltage magnitudes of the battery pack and the second battery pack according to the second battery pack voltage signal and the battery pack voltage signal when the battery pack voltage signal transmitted by the main control module is received through the second capacity expansion port;
when the voltage of the battery pack is less than or equal to the voltage of the second battery pack, the second main control module controls the second switch assembly to be in a closed state;
when the voltage of the battery pack is greater than the voltage of the second battery pack, if the second main control module receives a discharge state signal transmitted by the main control module through the second capacity expansion port, the second switch assembly is controlled to be in an open state;
when the voltage of the battery pack is greater than the voltage of the second battery pack, if the second main control module receives a charging state signal transmitted by the main control module through the second capacity expansion port, the second switch assembly is controlled to be in a closed state.
Optionally, the capacity expansion port further includes: a third access detection terminal and a fourth access detection terminal; the third access detection end and the fourth access detection end are respectively and electrically connected with the second main control module;
the second main control module is configured to control the second switch assembly to be in an open state when it is determined that the third access detection end and the fourth access detection end are not in a short-circuit state, so as to disconnect a path between the second battery pack and the second dc bus;
the second master control module is further configured to control the second switch assembly to be in a closed state when it is determined that the third access detection end and the fourth access detection end are in a short-circuit state;
the capacity expansion battery device further includes: a shield;
the shielding piece is detachably connected with the second expansion port to cover/expose the second expansion port; one side of the shielding piece facing the second capacity expansion port is provided with a short circuit piece, and when the shielding piece covers the second capacity expansion port for connection, the third access detection end and the fourth access detection end are tightly attached to the short circuit piece for mutual short circuit.
Optionally, the second battery module further includes:
and the second current limiting module is connected in series on a path between the second switch component and the second direct current bus, and is used for enabling the current value flowing into the second battery pack to be smaller than or equal to a preset current value.
Optionally, the capacity expansion battery device further includes:
a voltage output terminal;
the output end of the voltage conversion component is connected with the voltage output end, the input end of the voltage conversion component is electrically connected with the second direct current bus, and the voltage conversion component is electrically connected with the second main control module;
the second main control module is also provided with an output signal access end for accessing a voltage output signal, and is used for controlling the second switch assembly to be in a closed state when receiving the voltage output signal, and controlling the voltage conversion assembly to perform voltage conversion on the voltage of the second battery pack and then output the voltage corresponding to the voltage output signal through the voltage output end;
and the second master control module is further used for controlling the voltage conversion assembly to stop working when the connection between the second expansion port and the expansion port of the outdoor power supply device is confirmed.
The invention also provides an outdoor power supply assembly comprising: a connecting line, an outdoor power supply apparatus as claimed in any one of the above and a capacity-expanding battery apparatus as claimed in any one of the above;
the outdoor power supply device and the capacity-expanding battery device are electrically connected in a pluggable mode through the connecting wires.
The outdoor power supply device comprises a battery module, an expansion port and a main control module, wherein the expansion port is used for being electrically connected with a second expansion port of the expansion battery device in a pluggable manner; when the capacity expansion port is connected with the second capacity expansion port, the direct current bus and the second battery module establish an electric connection path; the main control module is used for controlling the switch assembly to be in a closed state when the connection between the capacity expansion port and the second capacity expansion port of the capacity expansion battery device is confirmed, so that the battery pack and the second battery module of the capacity expansion battery device are connected in parallel. So, in practical application, can be with the external dilatation battery device of outdoor power supply unit to the realization is to the dilatation of the battery package capacity in the outdoor power supply unit, and then has improved long time in outdoor power supply unit's the use.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a block diagram of an outdoor power supply apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic block diagram of an outdoor power device according to another embodiment of the present invention;
FIG. 3 is a block diagram of an outdoor power supply according to yet another embodiment of the present invention;
FIG. 4 is a schematic block diagram of an embodiment of a capacity expansion device according to the invention;
FIG. 5 is a block diagram of another embodiment of a capacity expansion battery apparatus according to the present invention;
FIG. 6 is a block diagram of a battery expansion apparatus according to another embodiment of the present invention;
fig. 7 is a block diagram of an embodiment of an outdoor power supply assembly according to the invention.
The reference numbers illustrate:
reference numerals Name (R) Reference numerals Name (R)
10 Battery module 11 Battery pack
12 DC bus 13 Switch assembly
20 Capacity expansion port 30 Main control module
14 Current limiting module 00 Shielding piece
01 Short-circuit piece 40 Second battery module
41 Second battery pack 42 Second DC bus
43 Second switch assembly 44 Second current limiting module
50 Second capacity expansion port 60 Second main control module
70 Voltage conversion assembly
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The existing outdoor power supply device usually adopts a battery inside the device as a power supply source, and the endurance time of the external power supply is limited by the capacity of a battery pack inside the device, so that the outdoor power supply device is inconvenient for users to use flexibly.
Therefore, the invention provides an outdoor power supply device, which is applied to an outdoor power supply assembly, wherein the outdoor power supply assembly further comprises a capacity expansion battery device, and the capacity expansion battery device is provided with a second capacity expansion port 50 and a second battery module 40 electrically connected with the second capacity expansion port.
Referring to fig. 1, in an embodiment of the present invention, an outdoor power supply apparatus includes:
the battery module 10 is provided with a battery pack 11, a direct current bus 12 and a switch assembly 13, wherein the switch assembly 13 is connected in series on a path between the battery pack 11 and the direct current bus 12;
the expansion port 20 is electrically connected with the direct current bus 12, and the expansion port 20 is used for being electrically connected with a second expansion port 50 of the expansion battery device in a pluggable manner; when the expansion port 20 is connected to the second expansion port 50, the dc bus 12 establishes an electrical connection path with the second battery module 40;
the main control module 30 is electrically connected to the switch assembly 13 and the expansion port 20, and the main control module 30 is configured to control the switch assembly 13 to be in a closed state when it is determined that the expansion port 20 is connected to the second expansion port 50 of the expansion battery device, so that the battery pack 11 and the second battery module 40 of the expansion battery device are connected in parallel.
In this embodiment, the switch assembly 13 may be implemented by a switch tube, such as a MOS tube, an IGBT tube, a triode, or a switch device, such as a contactor, a relay, or the like. Optionally, the expansion port 20 and the second expansion port 50 may be electrically connected to each other through a connection line, a plurality of connection ends may be disposed in the expansion port 20, and the connection ends may be male connection ends so as to be connected to corresponding connection female sockets on one end of the connection line. Or, the expansion port 20 may be a female connection seat, the female connection seat has a plurality of connection ends therein, and one end of the connection line is a male connection end to be connected into the expansion port 20 of the female connection seat.
In this embodiment, the main control module 30 may be implemented by a main control device, such as an MCU (micro controller unit), a DSP (Digital Signal processing) chip, an FPGA (Field Programmable Gate Array) chip, and the like. It is understood that the capacity expansion port 20 may include a communication port connected to the main control module 30, the main control module 30 may output a query signal at a time interval, for example, 1S, via the communication port, and if the capacity expansion battery device and the outdoor power device are connected together via the connection line, the capacity expansion battery device receives the query signal and feeds back a received signal to the communication port in the capacity expansion port 20 of the outdoor power device, so that the outdoor power device determines that the two devices are currently connected together via the connection line. If the main control module 30 does not receive the received signal within a predetermined time after outputting the query signal, for example, 0.1S, it is determined that the two devices are not connected together.
Referring to fig. 7, when the main control module 30 determines that the expansion port 20 of the outdoor power device is connected to the second expansion port 50 of the expansion battery device via the connection line, the switch assembly 13 is controlled to be in a closed state to conduct the electrical connection path between the dc bus 12 and the battery pack 11. Meanwhile, as will be understood from the following description of the embodiment, the second main control module 60 also controls the second switch assembly 43 to be in a closed state, so as to conduct a path between the second dc bus 42 and the second battery pack 41. At this time, since the dc bus 12 and the expansion port 20 are electrically connected together, and the second dc bus 42 and the second expansion port 50 are electrically connected together, when the expansion port 20 and the second expansion port 50 are electrically connected together, the dc bus 12 and the second dc bus 42 are also electrically connected together, so that the battery pack 11 and the second battery pack 41 are connected together in parallel. So, just can realize inserting outdoor power supply unit through dilatation battery device to the realization is in parallel with second battery package 41 of dilatation battery device and outdoor power supply unit's battery package 11 and is in the same place, thereby has realized the dilatation to outdoor power supply unit's battery package 11.
The outdoor power supply device comprises a battery module 10, a capacity expansion port 20 and a main control module 30, wherein the capacity expansion port 20 is used for being electrically connected with a second capacity expansion port 50 of a capacity expansion battery device in a pluggable mode; when the expansion port 20 is connected to the second expansion port 50, the dc bus 12 establishes an electrical connection path with the second battery module 40; the main control module 30 is configured to control the switch assembly 13 to be in a closed state when it is determined that the expansion port 20 is connected to the second expansion port 50 of the expansion battery device, so that the battery pack 11 and the second battery module 40 of the expansion battery device are connected in parallel. So, in practical application, can be with the external dilatation battery device of outdoor power supply unit to the realization is to the dilatation of the 11 capacities of battery package in the outdoor power supply unit, and then it is long when outdoor power supply unit's use has been improved.
Referring to fig. 2, in an embodiment of the present invention, the capacity-expansion battery device further includes a second main control module 60, the second capacity-expansion port 50 includes a power end and a communication end, the second main control module 60 is electrically connected to the communication end of the second capacity-expansion port 50, the second battery module 40 is electrically connected to the power end of the capacity-expansion port 20, and the capacity-expansion port 20 includes:
the power supply end of the capacity expansion port 20 is electrically connected with the direct current bus 12;
the communication end of the capacity expansion port is electrically connected with the main control module 30;
when the capacity expansion port 20 is connected to the second capacity expansion port 50, an electrical connection path is established between the power supply terminal of the capacity expansion port 20 and the power supply terminal of the second capacity expansion port 50, and an electrical connection path is established between the communication terminal of the capacity expansion port 20 and the communication terminal of the second capacity expansion port 50.
In this embodiment, referring to fig. 2 and fig. 7, in this embodiment, the power supply terminals of the expansion port 20 include a positive power supply terminal BAT + and a negative power supply terminal BAT —, optionally, the negative power supply terminal BAT —, may be grounded, the negative power supply terminal BAT may be a grounded terminal, the positive power supply terminal BAT + is electrically connected to the dc bus 12, and when the switch assembly 13 is closed, the positive power supply terminal BAT + is connected to the positive power supply terminal of the battery via the dc bus 12. Thus, when the outdoor power supply device establishes the electrical connection path with the capacity expansion battery device through the connection line, the power supply positive terminal BAT +, the power supply negative terminal BAT-in the second capacity expansion port 50 of the capacity expansion battery device and the power supply positive terminal BAT +, the power supply negative terminal BAT-in the capacity expansion port 20 of the outdoor power supply device are in one-to-one correspondence to establish the electrical connection path, so that when the switch assembly 13 and the second switch assembly 43 are both in the closed state, the battery pack 11 and the second battery pack 41 can be connected in parallel with each other, and the capacity expansion of the battery pack 11 of the outdoor power supply device is realized.
In this embodiment, a communication module may be further disposed in the outdoor power supply apparatus, or the communication module is directly integrated in the main control module 30. The communication end of the expansion port 20 may be implemented by a communication end corresponding to the communication module, for example, the 485 communication end of the 485 communication module, the four-wire SPI communication end corresponding to the SPI communication module, and the I 2 And the C communication module corresponds to the two-wire communication end.
Specifically, referring to fig. 2 and fig. 7, taking an example that the capacity expansion battery device and the outdoor power supply device both use an RS485 communication module, the communication end of the capacity expansion port 20 of the outdoor power supply device includes a first communication end a and a second communication end B. Similarly, the communication terminal of the expansion port 20 of the outdoor power supply device includes a first communication terminal a and a second communication terminal B. Thus, when the outdoor power supply device establishes an electrical connection path with the capacity-expansion battery device through the connection line, the first communication terminal a and the second communication terminal B of the second capacity-expansion port 50 of the capacity-expansion battery device can establish the electrical connection path with the first communication terminal a and the second communication terminal B of the capacity-expansion port 20 of the outdoor power supply device in a one-to-one correspondence manner, so that the communication connection between the main control module 30 and the second main control module 60 is realized.
Referring to fig. 2, in an embodiment of the present invention, the main control module 30 further has an electric quantity signal receiving end for receiving a voltage signal of the battery pack 11, and the main control module 30 is further configured to output a voltage signal of the battery pack 11 to the second main control module 60 through the communication end of the capacity expansion port 20 when the communication connection is established with the second main control module 60 through the capacity expansion port 20, so that the second main control module 60 determines a voltage value of the battery pack 11;
the main control module 30 further has a state receiving end for receiving the state signal of the battery pack 11, and outputs a discharge state signal through the communication end of the expansion port 20 when determining that the battery pack 11 is in a discharge state according to the state signal of the battery pack 11; and is further configured to output a charging state signal through the communication terminal of the capacity expansion port 20 when it is determined that the battery pack 11 is in the charging state according to the state signal of the battery pack 11.
In this embodiment, a voltage detection circuit, such as a voltage detection chip, a circuit voltage division circuit, etc., for detecting the voltage of the battery pack 11 may be further disposed in the battery module 10, and the detection result is output to the electric quantity signal receiving end of the main control module 30 in the form of a digital signal or an analog signal, so that the main control module 30 determines the voltage of the current battery pack 11 and transmits a corresponding voltage signal of the battery pack 11 to the second main control module 60 through the first communication end a and the second communication end B.
It should be understood that, the outdoor power supply device further includes a trigger component, an inverter component connected to the DC bus 12, a DC/DC component and a charging component, optionally, the state receiving end of the main control module 30 may be directly connected to the trigger component to receive a discharging instruction or a charging instruction (a battery pack 11 state signal) output by a user by touching the trigger component, when the main control module 30 receives the discharging instruction, the inverter component/DCDC component may be controlled to convert the voltage of the battery pack 11 into a voltage corresponding to the discharging instruction through the DC bus 12 and output the voltage, and meanwhile, the main control module 30 may also output a discharging state signal through the communication end of the capacity expansion port 20; the charging process is the same and will not be described again. Optionally, a BMS module electrically connected to the battery pack 11 and configured to detect a state of the battery pack 11 may be further disposed inside the battery module 10, the BMS module is also electrically connected to the main control module 30, the BMS module detects a current state of the battery pack 11 and outputs a corresponding state signal of the battery pack 11 to a state receiving end of the main control module 30, so that the main control module 30 determines that the current battery pack 11 is in a discharging state, a charging state, or a standing state, and outputs a discharging state signal via the first communication terminal a and the second communication terminal B when the battery pack 11 is in the discharging state, and outputs a charging state signal via the first communication terminal a and the second communication terminal B to the second main control module 60 when the battery pack 11 is in the charging state, so that the second main control module 60 determines a working state of the current outdoor power supply apparatus, and performs the following operations, which are not described herein again.
It should be understood that, as can be understood from the foregoing description, when the outdoor power supply apparatus outputs ac/dc power externally, or is in a charging state, the switch assembly 13 needs to be kept in a closed state to conduct the electrical connection path between the battery pack 11 and the dc bus 12. At this time, the power source terminal on the capacity expansion port 20 is in a power-on state and is directly exposed, and if the user touches the power source positive terminal BAT + and the power source negative terminal BAT-in the power source terminal at this time, there may be a risk of electric shock. In addition, if the switch module 13 of the outdoor power supply device is in a closed state and the second switch module 43 of the capacity expansion battery device is also in a closed state, the capacity expansion port 20 and the second capacity expansion port 50 are electrically connected together through a connection line, and if the voltage between the battery pack 11 and the second battery pack 41 has a certain difference, a fire may be struck in a moment of connection, which greatly affects the experience of a user.
Referring to fig. 2, in an embodiment of the present invention, the capacity expansion port 20 further includes: the system comprises a first access detection end and a second access detection end; the first access detection end and the second access detection end are respectively and electrically connected with the main control module 30;
the main control module 30 is configured to control the switch assembly 13 to be in an open state when it is determined that the first access detection end and the second access detection end are not in a short-circuit state, so as to disconnect a path between the battery pack 11 and the dc bus 12;
the main control module 30 is further configured to control the switch assembly 13 to be in a closed state when it is determined that the first access detection end and the second access detection end are in a short-circuit state or when it is determined that the expansion port 20 is connected to the second expansion port 50 of the expansion battery device;
the outdoor power supply apparatus further includes: a shield 00;
wherein, the shielding member 00 is detachably connected to the expansion port 20 to cover/expose the expansion port 20; one side of shielding member 00 towards dilatation port 20 is provided with short-circuit member 01, and when shielding member 00 covered dilatation port 20 and connected, first access sense terminal and second access sense terminal all hugged closely with short-circuit member 01 in order to realize the short circuit each other.
In this embodiment, optionally, the expansion port 20 includes a sleeve extending out of the casing of the outdoor power supply device, a power supply positive terminal BAT +, a first communication terminal a, a second communication terminal B, a first access detection terminal SW1 and a second access detection terminal SW2 are arranged inside the sleeve, a plurality of clamping grooves are arranged on the outer surface of the sleeve, the inner wall of the shielding piece 00 can be provided with a plurality of corresponding clamping pieces, and the plurality of clamping pieces can be correspondingly inserted into the plurality of clamping grooves to cover the shielding piece 00 on the sleeve opening of the expansion port 20, so as to shield a plurality of connection ends in the expansion port 20. Meanwhile, the short circuit member 01 may be made of a conductive metal material, such as copper, silver, or the like, so that when the shielding member 00 covers the volume-expanding port 20, the short circuit member 01 may just touch the first access detection terminal SW1 and the second access detection terminal SW2, thereby shorting the first access detection terminal SW1 and the second access detection terminal SW2 together. Optionally, the capacity expansion port 20 may be implemented by using interfaces of different structures, an opening may be further disposed on a housing of the outdoor power supply device, a position of the opening corresponds to a position of the capacity expansion port 20, one end of the shielding member 00 may be fixedly connected to the housing of the outdoor power supply device by a hinge, the shielding member 00 may rotate between a first position and a second position relative to the housing, when the shielding member 00 is located at the first position relative to the housing, the shielding member 00 can just cover the opening of the housing to shield a plurality of connection ends in the capacity expansion port 20, and meanwhile, when the shielding member 00 is located at the first position, the short circuit member 01 thereon can also just touch the first access detection end SW1 and the second access detection end SW2, so as to short-circuit the first access detection end SW1 and the second access detection end SW2 together. Thus, in practical application, when the outdoor power supply device and the capacity expansion battery device are not required to be connected together through a connecting wire, a user can install the shielding piece 00 on the capacity expansion port 20 to cover the capacity expansion port 20, so that when the outdoor power supply device is in a charging state or a discharging state, the user accidentally touches the live connection end in the capacity expansion port 20 to cause electric shock, and the safety of the user in using the outdoor power supply device is improved.
Referring to fig. 2, in the present embodiment, the first connection detection terminal SW1 is electrically connected to the main control module 30, and the second connection detection terminal SW2 is grounded. When the first access detection end SW1 and the second access detection end SW2 are short-circuited, that is, when the main control module 30 determines that the voltage of the first access detection end SW1 is low level, it can be determined that the shielding member 00 is installed on the expansion port 20 by the current user, and it is not necessary to connect the outdoor power supply device and the expansion battery device. Then, the main control module 30 controls the switch assembly 13 to be in a closed state to open a path between the dc bus 12 and the battery pack 11. Thus, the expansion battery device can normally perform the discharging/charging operation.
If the main control module 30 determines that the first access detection terminal SW1 does not receive the low level signal currently, or the first access detection terminal SW1 is pulled up internally, it may be determined that the first access detection terminal SW1 and the second access detection terminal SW2 are not short-circuited. At this time, the main control module 30 will determine that the user has taken off the shielding member 00 of the outdoor power supply device, and then control the switch assembly 13 to be in the open state, so as to disconnect the path between the dc bus 12 and the battery pack 11. With reference to the above embodiment, since the main control module 30 controls the switch assembly 13 to be closed again when determining that the expansion port 20 is connected to the second expansion port 50 of the expansion battery device, at the moment when the user just connects the expansion port 20 to the expansion port 20 through the connection line, the outdoor power supply device switch assembly 13 and the second expansion port of the expansion battery device are still in the disconnected state, so that the ignition condition does not occur.
With the above arrangement, in practical application, when the user takes off the shielding element 00, the user can be prevented from touching the positive power terminal BAT and the negative power terminal BAT on the capacity expansion port 20 unintentionally to cause electric shock, and the user is prevented from striking fire when the capacity expansion port 20 and the second capacity expansion port 50 are connected together through a connecting wire, so that the safety and reliability of the outdoor power supply device used by the user are effectively improved.
Referring to fig. 3, in an embodiment of the present invention, the battery module 10 further includes:
and the current limiting module 14 is connected in series on a path between the switch assembly 13 and the direct current bus 12, and the current limiting module 14 is used for enabling the current value flowing into the battery pack 11 to be smaller than or equal to a preset current value.
In this embodiment, the current limiting module 14 may be implemented with a unidirectional current limiting circuit to limit the current flowing into the battery. As can be seen from the above, when the capacity-expansion battery device is connected to the outdoor power supply device via the connection line, if the voltage of the second battery pack 41 of the capacity-expansion battery device is greater than the voltage of the battery pack 11 of the outdoor power supply device, the second battery pack 41 directly charges the battery packs 11 connected in parallel. Therefore, in order to prevent the charging current from being too large to damage the battery pack 11 itself or other circuit devices in the outdoor power supply apparatus, such as the switch tube in the switch assembly 13. The current limiting module 14 limits the current value of the charging current output from the second battery pack 41 to the battery pack 11 through the second dc bus 42, the second capacity expansion port 50, the capacity expansion port 20, and the dc bus 12 to be below a preset current value, so as to prevent the service life of the battery pack 11 from being affected due to an excessively high charging current value, and further effectively improve the reliability and stability of the outdoor power supply device. The preset current value is determined by the type of the unidirectional current limiting module 14 selected by the research and development personnel.
Referring to fig. 4, the present invention further provides a capacity-expansion battery device applied to an outdoor power supply assembly, where the outdoor power supply assembly further includes an outdoor power supply device, the outdoor power supply device has a capacity-expansion port 20 and a battery module 10 electrically connected thereto, and the capacity-expansion battery device includes:
a second battery module 40, wherein a second battery pack 41, a second dc bus 42 and a second switch assembly 43 are arranged in the second battery module 40, and the second switch assembly 43 is connected in series on a path between the second battery pack 41 and the second dc bus 42;
the second capacity expansion port 50 is electrically connected with the second direct current bus 42, and the second capacity expansion port 50 is used for being electrically connected with the capacity expansion port 20 of the outdoor power supply device in a pluggable manner; when the capacity expansion port 20 is connected to the second capacity expansion port 50, the second dc bus 42 establishes an electrical connection path with the battery module 10;
the second main control module 60 is electrically connected to the second switch assembly 43 and the second expansion port 50, and the second main control module 60 is configured to control the second switch assembly 43 to be in a closed state when it is determined that the second expansion port 50 is connected to the expansion port 20 of the outdoor power supply apparatus, so that the second battery pack 41 is connected to the battery module 10 of the outdoor power supply apparatus in parallel.
In this embodiment, the second switch assembly 43 may be implemented by a switch tube, such as a MOS tube, an IGBT tube, a triode, or a switch device, such as a contactor, a relay, or the like. Optionally, the second expansion port 20 and the expansion port 20 may be electrically connected by a connection line, and a plurality of connection ends may be disposed in the second expansion port 50, where the connection end may be a male connection end to be connected into a corresponding connection female socket interface on one end of the connection line.
In this embodiment, the second main control module 60 may be implemented by a main control device, such as an MCU (micro controller unit), a DSP (Digital Signal processing) chip, an FPGA (Field Programmable Gate Array) chip, and the like. It is to be understood that, for the process of the second main control module 60 confirming that the second capacity expansion port 50 is connected to the capacity expansion port 20 of the outdoor power supply apparatus, reference may be made to the process of the main control module 30 confirming that the capacity expansion port 20 is connected to the second capacity expansion port 50 of the capacity expansion battery apparatus, and details are not described here again.
As can be seen from the foregoing description of the embodiment, when the main control module 30 confirms that the outdoor power supply device is connected to the capacity-expanded battery device, that is, the capacity-expanded port 20 is connected to the second capacity-expanded port 50 of the capacity-expanded battery device, the switch assembly 13 is controlled to be in a closed state, so as to conduct the electrical connection path between the dc bus 12 and the battery pack 11. Meanwhile, the second main control module 60 controls the second switch assembly 43 to be in a closed state to conduct a path between the second dc bus 42 and the second battery pack 41. At this time, since the dc bus 12 and the expansion port 20 are electrically connected together, and the second dc bus 42 and the second expansion port 50 are electrically connected together, when the expansion port 20 and the second expansion port 50 are electrically connected together, the first dc bus 12 and the second dc bus 42 are also electrically connected together, so that the battery pack 11 and the second battery pack 41 are connected together in parallel. So, just can realize inserting outdoor power supply unit through dilatation battery device to the realization is in parallel with second battery package 41 of dilatation battery device and outdoor power supply unit's battery package 11 and is in the same place, thereby has realized the dilatation to outdoor power supply unit's battery package 11.
Referring to fig. 5, in an embodiment of the present invention, the outdoor power supply apparatus further includes a main control module 30, the capacity expansion port 20 includes a power end and a communication end, the main control module 30 is electrically connected to the communication end of the capacity expansion port 20, and the battery module 10 is electrically connected to the power end of the capacity expansion port 20, where the second capacity expansion port 50 includes:
a power supply end of the second expansion port 50 is electrically connected to the second dc bus 42;
the communication end of the second expansion port is electrically connected with the second main control module 60;
when the capacity expansion port 20 is connected to the second capacity expansion port 50, the power end of the capacity expansion port 20 and the power end of the second capacity expansion port 50 establish an electrical connection path, and the communication end of the capacity expansion port 20 and the communication end of the second capacity expansion port 50 establish an electrical connection path.
And the second main control module 60 is configured to establish a communication connection with the main control module 30 through the second expansion port 50.
Referring to fig. 5 and 7, in this embodiment, the power supply terminals of the second expansion port 50 include a positive power supply terminal BAT + and a negative power supply terminal BAT —, optionally, the negative power supply terminal BAT —, may be grounded, the negative terminal of the battery may be a grounded terminal, the positive power supply terminal BAT + is electrically connected to the second dc bus 42, and when the second switch element 43 is closed, the positive power supply terminal BAT + is connected to the positive terminal of the battery via the second dc bus 42. Thus, when the outdoor power supply device establishes an electrical connection path with the capacity expansion battery device through the connection line, the red power supply positive terminal BAT +, the power supply negative terminal BAT-of the second capacity expansion port 50 of the capacity expansion battery device and the power supply positive terminal BAT +, the power supply negative terminal BAT-of the capacity expansion port 20 of the outdoor power supply device are in one-to-one correspondence to establish the electrical connection path, so that when the switch assembly 13 and the second switch assembly 43 are both in the closed state, the battery pack 11 and the second battery pack 41 can be connected in parallel with each other, and the capacity expansion of the battery pack 11 of the outdoor power supply device is realized.
In this embodiment, a communication module may be further disposed in the capacity-expansion battery device, or the communication module is directly integrated in the second main control module 60. The communication end of the second expansion port 50 may be implemented by a communication end corresponding to the communication module, for example, a 485 communication end of the 485 communication module, a four-line SPI communication end corresponding to the SPI communication module, and an I 2 And the C communication module corresponds to the two-wire communication end.
Specifically, referring to fig. 5 and fig. 7, taking an example that the capacity expansion battery device and the outdoor power supply device both use an RS485 communication module, the communication ends of the second capacity expansion port 50 of the capacity expansion battery device include a first communication end a and a second communication end B. Similarly, the communication end of the expansion port 20 of the outdoor power supply device includes a first communication end a and a second communication end B. Thus, when the outdoor power supply device establishes an electrical connection path with the capacity-expansion battery device through the connection line, the first communication terminal a and the second communication terminal B of the second capacity-expansion port 50 of the capacity-expansion battery device can establish the electrical connection path with the first communication terminal a and the second communication terminal B of the capacity-expansion port 20 of the outdoor power supply device in a one-to-one correspondence manner, so that the communication connection between the main control module 30 and the second main control module 60 is realized.
It is understood that, as shown in the above embodiment, the main control module 30 will start outputting the query signal through the communication terminal when confirming that the shutter 00 on the capacity expansion port 20 is removed. If the outdoor power supply device is electrically connected to the capacity-expansion battery device through the connection line and the connection is normal, the second main control module 60 receives the inquiry signal, and then confirms that the outdoor power supply device and the capacity-expansion battery device are in the connection state at present and feeds back the received signal through the communication end of the second capacity-expansion port 50. When the main control module 30 of the outdoor power supply device receives the feedback receiving signal, it is also confirmed that the outdoor power supply device and the capacity-extended battery device are in the connected state. Then, the main control module 30 and the second main control module 60 start data interaction via the communication terminal and the connection line of the respective expansion port 20.
Referring to fig. 5, in an embodiment of the present invention, the second main control module 60 has an electric quantity signal receiving end for receiving a voltage signal of the second battery pack 41, and the second main control module 60 is further configured to compare voltage magnitudes of the battery pack 11 and the second battery pack 41 according to the voltage signal of the second battery pack 41 and the voltage signal of the battery pack 11 when the voltage signal of the battery pack 11 transmitted from the main control module 30 is received through the second capacity expansion port 50;
when the voltage of the battery pack 11 is less than or equal to the voltage of the second battery pack 41, the second main control module 60 controls the second switch assembly 43 to be in a closed state;
when the voltage of the battery pack 11 is greater than the voltage of the second battery pack 41, if the second main control module 60 receives the discharge state signal transmitted from the main control module 30 through the second capacity expansion port 50, the second switch assembly 43 is controlled to be in an open state;
when the voltage of the battery pack 11 is greater than the voltage of the second battery pack 41, if the second main control module 60 receives the charging state signal from the main control module 30 through the second capacity expansion port 50, the second switch assembly 43 is controlled to be in the closed state.
In this embodiment, referring to the content of the above-mentioned outdoor power supply apparatus, a voltage detection component may be further disposed inside the second battery module 40 to detect the voltage of the second battery pack 41, and output a corresponding voltage signal of the second battery pack 41 to the electric quantity signal receiving end of the second main control module 60, so that the second main control module 60 determines the current voltage of the second battery pack 41. Similarly, the second active module determines the voltage of the battery pack 11 of the outdoor power supply device according to the voltage signal of the battery pack 11 received by the second expansion port 50.
It will be appreciated that the expansion battery means and the outdoor power supply means are now connected together by the connection cord.
If the second main control module 60 determines that the voltage of the battery pack 11 is less than or equal to the voltage of the second battery pack 41, it directly controls the second switch assembly 43 to be in the closed state. In this way, in practical applications, no matter the outdoor power supply device is in a charging state, a discharging state or a non-operating state at this time, the second battery pack 41 can be normally connected in parallel with the battery pack 11, and plays a role in capacity expansion, or plays a role in charging the battery pack 11 by the second battery pack 41.
If the second main control module 60 determines that the voltage of the battery pack 11 is greater than the voltage of the second battery pack 41 and receives the discharge status signal from the main control module 30 through the second expansion port 50, or does not receive any working status signal of the outdoor power device (at this time, the outdoor power device is in a static state), the second switch assembly 43 is still controlled to be in an open state. In this way, in practical applications, the battery pack 11 of the outdoor power supply device does not discharge the second battery pack 41 of the expansion battery device to affect the normal use of the outdoor power supply device by the user.
If the second main control module 60 determines that the voltage of the battery pack 11 is greater than the voltage of the second battery pack 41 and receives the charging status signal from the main control module 30 through the second expansion port 50, the second switch assembly 43 is controlled to be in the closed state. Thus, in practical application, the external charging power supply can be used for simultaneously charging the outdoor power supply device and the capacity expansion battery device.
Referring to fig. 5, in an embodiment of the present invention, the capacity expansion port 20 further includes: a third access detection terminal SW3 and a fourth access detection terminal SW4; the third access detection terminal SW3 and the fourth access detection terminal SW4 are electrically connected to the second main control module 60, respectively;
the second main control module 60 is configured to control the second switch assembly 43 to be in an open state when it is determined that the third access detection terminal SW3 and the fourth access detection terminal SW4 are not in a short-circuit state, so as to disconnect a path between the second battery pack 41 and the second dc bus 42;
the second main control module 60 is further configured to control the second switch assembly 43 to be in a closed state when it is determined that the third access detection terminal SW3 and the fourth access detection terminal SW4 are in a short-circuit state;
the capacity expansion battery device further includes: a shield 00;
the shielding member 00 is detachably connected to the second expansion port 50 to cover/expose the second expansion port 50; one side of the shielding piece 00 facing the second expansion port 50 is provided with a short circuit piece 01, and when the shielding piece 00 covers the second expansion port 50 for connection, the third access detection end SW3 and the fourth access detection end SW4 are tightly attached to the short circuit piece 01 to realize mutual short circuit.
In this embodiment, the structure of the second expansion port 50 and the optional embodiment and effect of the shielding member 00 are the same as those of the expansion port 20 and the optional embodiment and effect of the shielding member 00 in the above embodiments, and are not described herein again.
In this embodiment, referring to fig. 5 and the contents of the embodiment of the outdoor power supply apparatus, optionally, the third access detection terminal SW3 is electrically connected to the second main control module 60, and the fourth access detection terminal SW4 is grounded. When the third access detection terminal SW3 and the fourth access detection terminal SW4 are short-circuited, that is, the second main control module 60 determines that the voltage of the third access detection terminal SW3 is a low level, it can be determined that the shielding member 00 is installed on the second expansion port 50 by the user currently, and it is not necessary to connect the expansion battery device with the outdoor power supply device. Then, the second main control module 60 controls the second switch assembly 43 to be in a closed state to conduct the path between the second dc bus 42 and the second battery pack 41. Thus, the capacity-expanded battery device can perform the discharging operation normally, and the contents of the following embodiments are specifically referred to.
In addition, if the second main control module 60 determines that the third access detection terminal SW3 does not receive the low level signal currently, or the third access detection terminal SW3 is pulled up internally, it may be determined that the third access detection terminal SW3 and the fourth access detection terminal SW4 are not short-circuited. At this time, the second main control module 60 confirms that the user has removed the shutter 00 of the expansion battery device, and controls the second switch assembly 43 to be in the open state, so as to disconnect the path between the second dc bus 42 and the second battery pack 41. Thus, in practical application, when the user takes off the shielding element 00, the above arrangement can prevent the user from accidentally touching the positive power terminal BAT and the negative power terminal BAT on the second capacity expansion port 50 to cause electric shock, and prevent the user from being ignited when the second capacity expansion port 50 and the capacity expansion port 20 are connected together through the connecting wire, thereby effectively improving the safety and reliability of the user using the capacity expansion battery device.
It should be understood that, as can be understood from the above description, when the outdoor power supply device and the capacity expansion battery device are connected together through the connection line, if the outdoor power supply device is in the charging state, the second main control module 60 in the capacity expansion battery device controls the second switch assembly 43 to be in the closed state, so that the external charging device charges the outdoor power supply device and the capacity expansion battery device at the same time. However, in the actual charging process, the charging voltage of the second battery pack 41 of the capacity expansion battery device is the charging voltage output by the charging component of the outdoor power supply device, and may be larger than the charging voltage output by the charging component of the actual capacity expansion battery device, which may cause an excessive charging current flowing into the second battery pack 41, and further may affect the service life of the second battery pack 41.
To this end, referring to fig. 6, in an embodiment of the present invention, the second battery module 40 further includes:
and a second current limiting module 44, wherein the second current limiting module 44 is connected in series to a path between the second switching assembly 43 and the second dc bus 42, and the second current limiting module 44 is configured to reduce a current value flowing into the second battery pack 41 to be less than or equal to a preset current value.
In the present application, the second current limiting module 44 may be implemented by using a unidirectional current limiting module 14 or a unidirectional current chip, as with the current limiting module 14 in the above embodiments, so as to limit the charging current flowing into the second battery pack 41 within a second preset current value. The second predetermined current value is determined by the type selection of the unidirectional current limiting module 14. So, in practical application, when outdoor power supply unit and dilatation battery device link together through the connecting wire and charge to two devices together through external power source, can make the restriction flow in the charging current value of second battery package 41 to prevent that the current value is too high and lead to causing the influence to the life of second battery package 41, and then improved dilatation battery device reliability and stability of work effectively.
Referring to fig. 5, in an embodiment of the present invention, the capacity expansion battery device further includes:
a voltage output terminal;
the output end of the voltage conversion component 70 is connected with the voltage output end, the input end of the voltage conversion component 70 is electrically connected with the second direct current bus 42, and the voltage conversion component 70 is electrically connected with the second main control module 60;
the second main control module 60 further has an output signal access end for accessing a voltage output signal, and is configured to control the second switch assembly 43 to be in a closed state when receiving the voltage output signal, and control the voltage conversion assembly 70 to perform voltage conversion on the voltage of the second battery pack 41, and then output a voltage corresponding to the voltage output signal through the voltage output end;
the second main control module 60 is further configured to control the voltage conversion component 70 to stop working when it is confirmed that the second expansion port 50 is connected to the expansion port 20 of the outdoor power supply device.
In this embodiment, the voltage output terminal may be ase:Sub>A DC voltage output terminal, such as USB-A, USB-B, and USB-C. The voltage conversion component 70 may be implemented using a DCDC circuit, such as a BOOST circuit. The capacity-expanding battery device may further include a trigger component, such as a key array and a touch screen, and a user may control the trigger component to set a voltage required to be output by the capacity-expanding battery device, and make the trigger component output a corresponding voltage output signal to the second main control module 60 through the output signal input terminal. In this way, the second main control module 60 can control the voltage conversion component 70 to perform voltage conversion on the voltage of the second battery pack 41, and then output a voltage corresponding to the voltage output signal through the voltage output terminal, so as to supply power to the external device connected to the voltage output terminal.
Meanwhile, it can be understood that when the capacity expansion battery device needs to be connected with the outdoor power supply device in parallel, capacity expansion is performed on the outdoor power supply device. The second main control module 60 will stop the operation of the voltage conversion component 70 according to the content of the above embodiment when it is confirmed that the second capacity expansion port 50 is connected to the capacity expansion port 20 of the outdoor power device, so as to stop the voltage conversion component 70 from outputting the voltage through the voltage output terminal. Therefore, in practical application, when the capacity expansion battery device is not required to be connected with the outdoor power supply device together to expand the capacity of the outdoor power supply device, the capacity expansion battery device can also play a role in outputting a power supply required by a user, and the convenience of the capacity expansion battery device used by the user is improved.
The invention also provides an outdoor power supply assembly, which comprises a connecting wire, any outdoor power supply device and any expansion battery device; the outdoor power supply device and the capacity expansion battery device are electrically connected in a pluggable mode through the connecting wire.
In this embodiment, the outdoor power device and the capacity-expansion battery device may be connected by a connection line, and two ends of the connection line are provided with corresponding connection ports, the connection port at one end is inserted into the capacity-expansion port 20 of the outdoor power device, and the connection port at the other end is inserted into the second capacity-expansion port 50 of the capacity-expansion battery device, so as to establish an electrical connection path between the ends.
With reference to fig. 7, the description is made on the basis of the outdoor power supply apparatus and the capacity-extended battery apparatus on the above-described embodiment. Specifically, when a user needs to connect the outdoor power supply device and the capacity-extended battery device together through a connecting wire, the shielding member 00 of the outdoor power supply device needs to be removed first. At this moment, the main control module 30 in the outdoor power supply device may find that the first access detection end SW1 and the second access detection end SW2 are not connected together, that is, the current first access detection end SW1 is not connected to a low level signal, then the main control module 30 may confirm that the current user has a requirement for capacity expansion connection at this moment, and then may control the switch assembly 13 to be in an open state, so as to disconnect the path between the battery pack 11 and the dc bus 12, thereby making the dc bus 12 uncharged, so as to prevent the situation that the user or other conductive media mistakenly touch the power end of the capacity expansion port 20 to cause an electric shock, and simultaneously also prevent the situation that the capacity expansion port 20 and the second capacity expansion port 50 are connected together to cause an ignition in the moment. Then, the user will also take off the shielding piece 00 of the capacity expansion battery device, and similarly, at this moment, the second main control module 60 will also confirm that the third access detection terminal SW3 and the fourth access detection terminal SW4 are not short-circuited together, and then will control the second switch assembly 43 to be in the off state, so that the second dc bus 42 is not electrified, and also prevent the situation that the user or other conductive media mistakenly touch the power end of the capacity expansion port 20 to cause an electric shock, and simultaneously prevent the situation that the capacity expansion port 20 and the second capacity expansion port 50 are connected together to be ignited at the same moment.
The user would then connect the expansion port 20 to the second expansion port 50 using the above-described connection. At this moment, the second main control module 60 receives the query signal sent by the main control module 30 from the communication terminal (including the first communication terminal a and the second communication terminal B) of the second expansion port 50, and when it is determined that the two devices have established the electrical connection path, feeds back a received signal to the main control module 30 through the second expansion port 50, the connection line, and the communication terminal (including the first communication terminal a and the second communication terminal B) of the expansion port 20, and when the main control module 30 receives the received signal through the communication terminal of the expansion port 20, it is determined that the two devices have established the electrical connection path through the connection line. If the second master control module 60 does not receive the inquiry signal within a predetermined time, for example, 2S, it is determined that the two current states are not connected together.
When the main control module 30 determines that the capacity expansion device is accessed, it controls the switch assembly 13 to be in the closed state, and outputs the voltage signal of the battery pack 11 to the second main control module 60, and outputs the discharging state signal/charging state signal to the second main control module 60. Meanwhile, when the second main control module 60 determines that the outdoor power supply device is connected, it directly controls the voltage conversion assembly 70 to stop working and receives the voltage signal of the battery pack 11 to determine the voltage of the battery pack 11 of the outdoor power supply device.
When the second main control module 60 determines that the voltage of the battery pack 11 is less than or equal to the voltage of the second battery pack 41 according to the acquired voltage signal of the battery pack 11 and the voltage signal of the second battery pack 41, the second switch assembly 43 is directly controlled to be in a closed state, and at this time, the battery pack 11 of the outdoor power supply device is connected in parallel with the second battery pack 41 of the expansion battery device through the switch assembly 13, the dc bus 12, the expansion port 20, the second expansion port 50, the second dc bus 42, the second switch assembly 43, so as to realize expansion of the outdoor power supply device.
When the second main control module 60 determines that the voltage of the battery pack 11 is higher than the voltage of the second battery pack 41 according to the acquired voltage signal of the battery pack 11 and the voltage signal of the second battery pack 41.
If the second master control module 60 receives the discharge status signal from the master control module 30 through the second expansion port 50, or does not receive the discharge status signal or the charge status signal, the second switch assembly 43 is controlled to be in the open state, so as to prevent the outdoor power device from consuming the electric energy of the battery pack 11 to charge the second battery pack 41, until it is determined that the voltage of the battery pack 11 is less than or equal to the voltage of the second battery pack 41, the second switch assembly 43 is controlled to be in the closed state.
If the second master control module 60 receives the charging status signal from the master control module 30 through the second expansion port 50, the second switch assembly 43 is controlled to be in the closed state to enter the charging status.
It should be noted that, because the outdoor power supply assembly of the present invention is based on the outdoor power supply device and the capacity-extended battery device, the embodiment of the outdoor power supply assembly of the present invention includes all technical solutions of all embodiments of the outdoor power supply device and the capacity-extended battery device, and the achieved technical effects are also completely the same, and are not described herein again.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (12)

1. The utility model provides an outdoor power supply unit, is applied to outdoor power supply unit spare, outdoor power supply unit spare still includes the dilatation battery device, the dilatation battery device has second dilatation port and the second battery module of being connected with its electricity, its characterized in that, outdoor power supply unit spare includes:
the battery module is internally provided with a battery pack, a direct current bus and a switch assembly, and the switch assembly is connected in series on a path between the battery pack and the direct current bus;
the expansion port is electrically connected with the direct current bus and is used for being electrically connected with a second expansion port of the expansion battery device in a pluggable manner; when the capacity expansion port is connected with the second capacity expansion port, the direct current bus and the second battery module establish an electric connection path;
the main control module is respectively electrically connected with the switch assembly and the expansion port, and is used for controlling the switch assembly to be in a closed state when the expansion port is confirmed to be connected with the second expansion port of the expansion battery device, so that the battery pack and the second battery module of the expansion battery device are connected in parallel.
2. The outdoor power supply apparatus of claim 1, wherein the capacity expansion battery apparatus further comprises a second master control module, the second capacity expansion port comprises a power terminal and a communication terminal, the second master control module is electrically connected to the communication terminal of the second capacity expansion port, and the second battery module is electrically connected to the power terminal of the capacity expansion port, wherein the capacity expansion port comprises:
the power end of the capacity expansion port is electrically connected with the direct current bus;
the communication end of the capacity expansion port is electrically connected with the main control module;
when the capacity expansion port is connected with the second capacity expansion port, the power end of the capacity expansion port and the power end of the second capacity expansion port establish an electrical connection path, and the communication end of the capacity expansion port and the communication end of the second capacity expansion port establish an electrical connection path.
3. An outdoor power supply unit according to claim 2, wherein said main control module further has a power signal receiving terminal for receiving a voltage signal of a battery pack; the main control module is further configured to output a battery pack voltage signal to the second main control module through the communication terminal of the expansion port when it is confirmed that the communication connection is established between the expansion port and the second main control module, so that the second main control module determines a voltage value of the battery pack;
the main control module is also provided with a state receiving end for receiving a battery pack state signal, and when the battery pack is determined to be in a discharging state and the capacity expansion port is determined to be connected with the second capacity expansion port according to the battery pack state signal, the discharging state signal is output through the communication end of the capacity expansion port; and the expansion port is also used for outputting a charging state signal through the communication end of the expansion port when the battery pack is determined to be in a charging state and the expansion port is determined to be connected with the second expansion port according to the battery pack state signal.
4. The outdoor power supply apparatus of claim 2, wherein said expansion port further comprises: the system comprises a first access detection end and a second access detection end; the first access detection end and the second access detection end are respectively electrically connected with the main control module;
the main control module is used for controlling the switch assembly to be in an open state when the first access detection end and the second access detection end are not in a short-circuit state, so as to disconnect a passage between the battery pack and the direct-current bus;
the main control module is further configured to control the switch assembly to be in a closed state when the first access detection end and the second access detection end are confirmed to be in a short-circuit state;
the outdoor power supply apparatus further includes: a shield;
the shielding piece is detachably connected with the expansion port to cover/expose the expansion port; one side of the shielding piece facing the capacity expansion port is provided with a short circuit piece, and when the shielding piece covers the capacity expansion port for connection, the first access detection end and the second access detection end are tightly attached to the short circuit piece for realizing mutual short circuit.
5. An outdoor power supply apparatus according to any one of claims 1-4, characterized in that the battery module further comprises:
the current limiting module is connected in series on a path between the switch assembly and the direct current bus, and is used for enabling a current value flowing into the battery pack to be smaller than or equal to a preset current value.
6. The utility model provides a dilatation battery device is applied to outdoor power supply subassembly, outdoor power supply subassembly still includes outdoor power supply unit, outdoor power supply unit has the expansion port and the battery module of being connected with it electricity, its characterized in that, dilatation battery device includes:
the second battery module is internally provided with a second battery pack, a second direct-current bus and a second switch assembly, and the second switch assembly is connected in series on a path between the second battery pack and the second direct-current bus;
the second capacity expansion port is electrically connected with the second direct current bus and is used for being electrically connected with the capacity expansion port of the outdoor power supply device in a pluggable mode; when the capacity expansion port is connected with the second capacity expansion port, the second direct current bus and the battery module establish an electric connection path;
the second main control module is respectively electrically connected with the second switch assembly and the second expansion port, and is used for confirming that the second expansion port is connected with the expansion port of the outdoor power supply device, and controlling the second switch assembly to be in a closed state so as to enable the second battery pack to be connected with the battery module of the outdoor power supply device in parallel.
7. The capacity expansion battery device of claim 6, wherein the outdoor power device further comprises a main control module, the capacity expansion port comprises a power end and a communication end, the main control module is electrically connected to the communication end of the capacity expansion port, the battery module is electrically connected to the power end of the capacity expansion port, and the second capacity expansion port comprises:
the power supply end of the second expansion port is electrically connected with the second direct current bus;
the communication end of the second capacity expansion port is electrically connected with the second main control module;
when the capacity expansion port is connected with the second capacity expansion port, the power end of the capacity expansion port and the power end of the second capacity expansion port establish an electric connection path, and the communication end of the capacity expansion port and the communication end of the second capacity expansion port establish an electric connection path;
and the second main control module is used for establishing communication connection with the main control module through the second capacity expansion port.
8. The capacity expansion battery device as claimed in claim 7, wherein the second master control module has a capacity signal receiving terminal for receiving a second battery pack voltage signal, and the second master control module is further configured to compare the voltage of the battery pack with the voltage of the second battery pack according to the second battery pack voltage signal and the battery pack voltage signal when receiving the battery pack voltage signal from the master control module through the second capacity expansion port;
when the voltage of the battery pack is less than or equal to the voltage of the second battery pack, the second main control module controls the second switch assembly to be in a closed state;
when the voltage of the battery pack is greater than the voltage of the second battery pack, if the second main control module receives a discharge state signal transmitted by the main control module through the second capacity expansion port, the second switch assembly is controlled to be in an open state;
when the voltage of the battery pack is greater than the voltage of the second battery pack, if the second main control module receives a charging state signal transmitted by the main control module through the second capacity expansion port, the second switch assembly is controlled to be in a closed state.
9. The flash battery apparatus of claim 7, wherein the flash port further comprises: a third access detection terminal and a fourth access detection terminal; the third access detection end and the fourth access detection end are respectively and electrically connected with the second main control module;
the second main control module is configured to control the second switch assembly to be in an open state when it is determined that the third access detection end and the fourth access detection end are not in a short-circuit state, so as to disconnect a path between the second battery pack and the second dc bus;
the second main control module is further configured to control the second switch assembly to be in a closed state when it is determined that the third access detection end and the fourth access detection end are in a short-circuit state;
the capacity expansion battery device further comprises: a shield;
the shielding piece is detachably connected with the second expansion port to cover/expose the second expansion port; one side of the shielding piece facing the second capacity expansion port is provided with a short circuit piece, and when the shielding piece covers the second capacity expansion port for connection, the third access detection end and the fourth access detection end are tightly attached to the short circuit piece for mutual short circuit.
10. The flash battery apparatus of any of claims 6-9 wherein the second battery module further comprises:
and the second current limiting module is connected in series on a path between the second switch component and the second direct current bus, and is used for enabling the current value flowing into the second battery pack to be smaller than or equal to a preset current value.
11. A flash battery apparatus as claimed in any one of claims 6 to 9 wherein the flash battery apparatus further comprises:
a voltage output terminal;
the output end of the voltage conversion component is connected with the voltage output end, the input end of the voltage conversion component is electrically connected with the second direct current bus, and the voltage conversion component is electrically connected with the second main control module;
the second main control module is also provided with an output signal access end for accessing a voltage output signal, and is used for controlling the second switch assembly to be in a closed state when receiving the voltage output signal, and controlling the voltage conversion assembly to convert the voltage of the second battery pack and then output the voltage corresponding to the voltage output signal through the voltage output end;
and the second master control module is further used for controlling the voltage conversion assembly to stop working when the connection between the second expansion port and the expansion port of the outdoor power supply device is confirmed.
12. An outdoor power supply assembly, comprising: a connection line, an outdoor power supply apparatus according to any one of claims 1 to 5 and a flash battery apparatus according to any one of claims 6 to 11;
wherein, the outdoor power supply device and the capacity expansion battery device are electrically connected in a pluggable manner through the connecting wire.
CN202211081710.2A 2022-09-06 2022-09-06 Outdoor power supply device, capacity-expanded battery device and outdoor power supply assembly Active CN115173534B (en)

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