CN115441723A - Power supply conversion device - Google Patents

Power supply conversion device Download PDF

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Publication number
CN115441723A
CN115441723A CN202211050440.9A CN202211050440A CN115441723A CN 115441723 A CN115441723 A CN 115441723A CN 202211050440 A CN202211050440 A CN 202211050440A CN 115441723 A CN115441723 A CN 115441723A
Authority
CN
China
Prior art keywords
module
battery
converter
electric vehicle
power
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202211050440.9A
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Chinese (zh)
Inventor
赵武
张永川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Pisen Electronics Co ltd
Original Assignee
Guangdong Pisen Electronics Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Pisen Electronics Co ltd filed Critical Guangdong Pisen Electronics Co ltd
Priority to CN202211050440.9A priority Critical patent/CN115441723A/en
Publication of CN115441723A publication Critical patent/CN115441723A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/20—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by converters located in the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/20—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by converters located in the vehicle
    • B60L53/22—Constructional details or arrangements of charging converters specially adapted for charging electric vehicles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0003—Details of control, feedback or regulation circuits
    • H02M1/0009—Devices or circuits for detecting current in a converter
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • 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
    • H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/20—Charging or discharging characterised by the power electronics converter

Abstract

The invention relates to a power supply conversion device, wherein the access end of a converter is matched with an electric vehicle battery socket and can be connected and communicated with the electric vehicle battery, the conversion device is provided with a DC module, an inversion module, a control module, a DC socket, an AC socket and other modules, and can convert the output power of the electric vehicle battery into adaptive voltage to be output to the AC socket and each DC socket so as to supply power for other electronic equipment, namely, the electric vehicle battery is converted into an outdoor power supply for use. Compared with a common outdoor power supply, the power conversion device is small and portable in size, can be carried about, and is particularly suitable for being used when the electric vehicle is driven to go out.

Description

Power supply conversion device
Technical Field
The invention relates to a power supply conversion device, in particular to a device for converting an electric vehicle battery into an outdoor power supply.
Background
Outdoor power source is the portable energy storage equipment of great capacity, and its inside has electric core, but the storage electric energy, and the power surface is equipped with multiple direct current delivery outlet such as USB, car cigar lighter usually, and some outdoor power source still are equipped with 220 and volt and exchange the delivery outlet, can supply power for small-size electrical apparatus such as cell-phone, computer.
The outdoor power supply is large in volume and weight, and can be conveniently carried above a driver when the driver drives a car to travel, but the outdoor power supply is difficult to carry in some short-distance light-load traveling scenes, such as driving an electric bicycle or an electric motorcycle to travel.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: a power conversion device is provided, which can convert the battery of the electric vehicle into an outdoor power supply for use.
The technical scheme adopted by the invention for solving the technical problem is as follows:
the power conversion device comprises a shell, wherein a DC module is arranged in the shell; the converter further comprises a converter access end and a DC jack, both of which are exposed from the housing;
the access end of the converter is matched with a power socket of the electric vehicle battery and is used for being connected and conducted with the power socket of the electric vehicle battery;
the DC module is respectively communicated with the converter access end and the DC jack and is used for converting the output direct current of the battery of the electric vehicle into adaptive direct current voltage and outputting the adaptive direct current voltage to the DC jack.
Further, a control module is arranged in the shell; the control module is connected with the DC module and used for acquiring and monitoring the input and/or output current of the DC module and controlling the input and/or output switch of the DC module according to the monitoring value.
Further, the control module is further connected with an input part, the input part is exposed out of the shell and used for receiving an input signal of the input part and controlling the switch of the input and/or output of the DC module according to the input signal.
Furthermore, the DC module is respectively communicated with the converter access end and the DC jack and is also used for connecting the DC jack with a charger, and the DC module converts the output electricity of the charger into adaptive voltage to be output to the converter access end so as to charge the battery of the electric vehicle.
Further, a charging module is arranged in the shell; the utility model discloses a battery charger, including converter incoming end, charging module, AC cable, adapter, converter incoming end, the module one end that charges connects the converter incoming end, and the other end is used for switching on the commercial power through the AC cable, and the module that charges truns into the commercial power into adaptation voltage, exports to the converter incoming end, and then charges for the electric motor car battery.
The inverter module is positioned in the shell, and the AC socket is exposed out of the shell;
the inverter module is respectively communicated with the converter access end and the AC socket and is used for converting the output power of the electric vehicle battery into adaptive alternating current voltage and outputting the adaptive alternating current voltage to the AC socket;
the control module is communicated with the inversion module and is used for acquiring and monitoring the input and/or output current of the inversion module and controlling the input and/or output switch of the inversion module according to the monitoring value;
the control module is connected with the input part and is also used for receiving the input signal of the input part and controlling the switch of the input and/or output of the inversion module according to the input signal.
Furthermore, the electric quantity display module is also included and is exposed out of the shell; the control module is respectively connected with the converter access end and the electric quantity display module and used for acquiring the current voltage of the electric vehicle battery from the converter access end, calculating the residual electric quantity according to a preset algorithm and controlling the electric quantity display module to display the residual electric quantity.
Further, the DC socket includes a USB socket, a type-c socket, and/or an in-vehicle cigarette lighter socket.
Further, the voltage of the output direct current of the electric vehicle battery is 24-72 volts.
Furthermore, the power socket of the battery of the electric vehicle is a pin-shaped socket.
The invention has the beneficial effects that: the power conversion device is provided with modules such as a DC module, an inversion module, a control module, a DC socket, an AC socket and the like, can convert output electricity of the electric vehicle battery into adaptive voltage to be output to the AC socket and each DC socket, supplies power for other electronic equipment, and converts the electric vehicle battery into an outdoor power supply for use. Compared with a common outdoor power supply, the power conversion device is small and portable in size, can be carried about, and is particularly suitable for being used when the electric vehicle is driven to go out.
Drawings
FIG. 1 is a functional block diagram of an embodiment of a power conversion apparatus according to the invention;
FIG. 2 is a functional block diagram of another embodiment of the power conversion apparatus of the present invention;
reference numerals: an electric vehicle battery 1 and a power conversion device 2.
Detailed Description
The invention is further described below with reference to the following figures and examples, which may be typical:
the power conversion device comprises a shell, wherein a DC module is arranged in the shell; the converter further comprises a converter access end and a DC jack, both of which are exposed from the housing;
the switch-in end of the converter is matched with a power socket of the battery of the electric vehicle and is used for being connected and conducted with the power socket of the battery of the electric vehicle;
the DC module is respectively communicated with the converter access end and the DC jack and is used for converting the output direct current of the battery of the electric vehicle into adaptive direct current voltage and outputting the adaptive direct current voltage to the DC jack.
The power conversion device can be arranged on the battery of the electric vehicle, and converts the battery of the electric vehicle into an outdoor power supply for use.
Specifically, as shown in fig. 1 and 2, an electric vehicle battery 1 is provided in the left dashed line box, and a power conversion device 2 is provided in the right dashed line box.
The existing electric vehicle battery generally has an internal structure including a battery core, a battery management module and a power socket connected in sequence. The battery core is used for storing electric energy, and the battery management module (or BMS battery management system) is used for controlling the charging and discharging of the battery core, so that the overcharge and the overdischarge of the battery core are avoided, and the functions of automatic power-off protection when the output power exceeds a threshold value, automatic power-off protection when the temperature of the battery exceeds the threshold value and the like are also realized.
The power conversion device 2 has a housing for protecting each functional module inside.
The converter is provided with a converter access end, and the converter access end is matched with a power socket of the electric vehicle battery, so that the converter access end can be conveniently communicated with the electric vehicle battery. For example, the common electric vehicle batteries in the market at present include lead-acid batteries, lithium batteries, and the like, and the sockets of the batteries are generally delta-shaped sockets, and then the access end of the converter can be a cable with a delta-shaped plug. The converter access end can also be other adaptive access forms according to different types of electric vehicle battery sockets.
The plug of the power conversion device is inserted into the socket of the battery of the electric bicycle to connect the battery of the electric bicycle, and each functional module in the power conversion device is connected with the access end of the converter and further connected with the battery of the electric bicycle.
The standard voltage of the battery of the electric vehicle is different according to the specification of the electric vehicle, and the specifications of 24 volts, 36 volts, 48 volts, 60 volts, 64 volts, 72 volts and the like are common.
The power conversion device is provided with a DC module; the DC voltage step-down circuit is used for stepping down the output direct current of an electric vehicle battery into adaptive voltage and outputting the adaptive voltage to a DC socket, and typical DC sockets comprise a USB socket, a type-c socket, a vehicle-mounted cigarette lighter socket and the like.
The DC voltage reduction of the DC module may be implemented by a linear voltage reduction circuit, for example, a linear voltage regulator, a resistor, or the like. Preferably, the Buck voltage reduction circuit can be realized by adopting a Buck voltage reduction circuit, for example, the Buck voltage reduction circuit can adopt chip schemes such as an Intel chip IP6536, a smart chip SW3516/SW3526, a south chip SC8721A and the like.
Above scheme, conversion equipment's converter incoming end is connected the back with the power socket of electric motor car battery, can regard as outdoor power source to use, and for example conversion equipment can change into 5 volts of direct current with electric motor car battery output electricity, exports to the USB interface, and then charges for the cell-phone, perhaps drives some LED table lamps work of 5 volt power supplies. The battery management module in the battery of the electric vehicle can realize the output power protection and the over-discharge protection of the battery. The conversion device is internally provided with no battery cell, the size of the conversion device can be very small and handy, and a user can carry the conversion device with the user. According to the needs, can be at any time convenient convert electric bicycle battery into outdoor power and use.
At present, a DC voltage transformation integrated circuit on the market, such as the chip schemes of the aforementioned english integrated core IP6536, south core SC8721A, and the like, is generally integrated with a Buck circuit and a Boost circuit, i.e., has both DC voltage boosting and DC voltage reducing functions.
Therefore, preferably, the DC module is connected to the converter inlet and the DC jack, and is further used for connecting a charger to the DC jack, and the DC module converts the output power of the charger into an adaptive voltage, and outputs the adaptive voltage to the converter inlet, so as to charge the battery of the electric vehicle.
After the battery of the electric vehicle is connected with the power supply conversion device, the battery of the electric vehicle can be connected to the DC socket by using the mobile phone charger, and the battery of the electric vehicle is charged by using the mobile phone charger. And the DC module is used for boosting the output power of the mobile phone charger to the adaptive charging voltage of the electric vehicle battery.
In addition, a charging module may be built in the power conversion device, for example, a charging module may be further provided in the housing; the utility model discloses a battery charger, including converter incoming end, charging module, AC cable, adapter, converter incoming end, the module one end that charges connects the converter incoming end, and the other end is used for switching on the commercial power through the AC cable, and the module that charges truns into the commercial power into adaptation voltage, exports to the converter incoming end, and then charges for the electric motor car battery.
As shown in fig. 2, the charging module steps down and rectifies the commercial power into adaptive direct current for charging the battery of the electric vehicle, and when the power conversion device is connected to the battery of the electric vehicle, the charging module is connected to the commercial power through an AC cable, so as to charge the battery of the electric vehicle. Typical implementations may be charger implementations that directly follow existing electric vehicle batteries, or employ existing other switching power supply schemes.
In order to further ensure the safety of electricity utilization, it is preferable that a control module is further arranged in the housing; the control module is connected with the DC module and used for acquiring and monitoring the input and/or output current of the DC module and controlling the input and/or output switch of the DC module according to the monitoring value.
Generally, the control module may be implemented by a single chip, for example, obtaining and monitoring an input and/or output current of the DC module, and may be implemented by setting a high-precision resistor on an input and/or output path of the DC module, detecting a voltage drop of the high-precision resistor, converting the voltage drop and the resistance into a current of the path after analog-to-digital conversion, comparing the current with a threshold, and if the current exceeds the threshold, sending a control signal to shut down the input and/or output path, thereby ensuring power consumption safety. According to the interface voltage and the input/output current, the input/output power can be further converted, and the control module can also monitor the power and carry out shutdown for protection.
Preferably, the control module may further be connected with an input part exposed from the housing, and the input part is used for receiving an input signal of the input part and controlling the switch of the input and/or output of the DC module according to the input signal.
The input part connected with the control module can be an operation button, a switch, a touch screen and the like, for example, when the control module receives a control signal of the input part to close the output of the USB socket, the control module sends out the control signal to cut off the power supply of the DC module to the USB socket.
The specific implementation mode of the control signal can be to control the on-off of the circuit in the modes of a switch tube, a relay and the like.
Those skilled in the art will appreciate that the control module may also be in the form of a Programmable Logic Controller (PLC), a Field Programmable Gate Array (FPGA), etc. to implement its functions.
More preferably, the inverter module is positioned in the shell, and the AC socket is exposed out of the shell;
the inverter module is respectively communicated with the converter access end and the AC socket and is used for converting the output power of the electric vehicle battery into adaptive alternating current voltage and outputting the adaptive alternating current voltage to the AC socket;
the control module is communicated with the inversion module and is used for acquiring and monitoring the input and/or output current of the inversion module by the control module and controlling the input and/or output switch of the inversion module according to the monitoring value;
the control module is connected with the input part and is also used for receiving the input signal of the input part and controlling the switch of the input and/or output of the inversion module according to the input signal.
The inverter module is used for converting the output direct current of the battery of the electric vehicle into alternating current for use, for example, 220V alternating current, and the small electric appliance can be connected to an AC socket to obtain power supply. Similar to the DC module described above, the control module can also monitor and switch control the DC module.
In order to identify the residual capacity of the battery, a capacity display module is further included, and the capacity display module is exposed from the shell; the control module is respectively connected with the converter access end and the electric quantity display module and used for acquiring the current voltage of the electric vehicle battery from the converter access end, calculating the residual electric quantity according to a preset algorithm and controlling the electric quantity display module to display the residual electric quantity.
As shown in fig. 1, the control module obtains the current voltage of the electric vehicle battery from the converter access terminal, and further estimates the remaining capacity according to a preset formula, for example, for a nominal 48 v electric vehicle battery, the full charge voltage is usually 55 v, and when the electric energy is exhausted, the voltage is usually 38 v, then the voltage 38-55 v can be mapped and converted into the remaining capacity of 0-100%. The electric quantity display module can adopt various forms such as an indicator light, a nixie tube and the like.

Claims (10)

1. The power conversion device comprises a shell, and is characterized in that a DC module is arranged in the shell; the converter further comprises a converter access end and a DC jack, both of which are exposed from the housing;
the switch-in end of the converter is matched with a power socket of the battery of the electric vehicle and is used for being connected and conducted with the power socket of the battery of the electric vehicle;
the DC module is respectively communicated with the converter access end and the DC jack and is used for converting the output direct current of the battery of the electric vehicle into adaptive direct current voltage and outputting the adaptive direct current voltage to the DC jack.
2. The power conversion device of claim 1, wherein a control module is further disposed within the housing; the control module is connected with the DC module and used for acquiring and monitoring the input and/or output current of the DC module and controlling the input and/or output switch of the DC module according to the monitoring value.
3. The power conversion device of claim 2, wherein an input portion is further connected to the control module, and the input portion is exposed from the housing, and is configured to receive an input signal from the input portion and control switching of the input and/or output of the DC module according to the input signal.
4. The power conversion device of claim 2, wherein the DC module is connected to the converter input terminal and the DC jack, and is further configured for connecting a charger to the DC jack, and the DC module converts the output power of the charger into an adaptive voltage, and outputs the adaptive voltage to the converter input terminal, so as to charge the battery of the electric vehicle.
5. The power conversion device of claim 1, wherein a charging module is further disposed within the housing; the utility model discloses a battery charger, including converter incoming end, charging module, AC cable, adapter, converter incoming end, the module one end that charges connects the converter incoming end, and the other end is used for switching on the commercial power through the AC cable, and the module that charges truns into the commercial power into adaptation voltage, exports to the converter incoming end, and then charges for the electric motor car battery.
6. The power conversion device of claim 3, further comprising an inverter module located within the housing and an AC outlet exposed from the housing;
the inverter module is respectively communicated with the converter access end and the AC socket and is used for converting the output power of the electric vehicle battery into adaptive alternating current voltage and outputting the adaptive alternating current voltage to the AC socket;
the control module is communicated with the inversion module and is used for acquiring and monitoring the input and/or output current of the inversion module and controlling the input and/or output switch of the inversion module according to the monitoring value;
the control module is connected with the input part and is also used for receiving the input signal of the input part and controlling the input and/or output switch of the inversion module according to the input signal.
7. The power conversion device of claim 2, further comprising a power display module, wherein the power display module is exposed from the housing; the control module is respectively connected with the converter access end and the electric quantity display module and used for acquiring the current voltage of the electric vehicle battery from the converter access end, calculating the residual electric quantity according to a preset algorithm and controlling the electric quantity display module to display the residual electric quantity.
8. The power conversion device of claim 1, wherein the DC socket comprises a USB socket, a type-c socket, and/or a vehicle cigarette lighter socket.
9. The power conversion device according to claim 1, wherein the electric vehicle battery outputs a direct current having a voltage of 24 to 72 v.
10. The power conversion device of claim 1, wherein the power outlet of the battery of the electric vehicle is a delta outlet.
CN202211050440.9A 2022-08-31 2022-08-31 Power supply conversion device Pending CN115441723A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211050440.9A CN115441723A (en) 2022-08-31 2022-08-31 Power supply conversion device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211050440.9A CN115441723A (en) 2022-08-31 2022-08-31 Power supply conversion device

Publications (1)

Publication Number Publication Date
CN115441723A true CN115441723A (en) 2022-12-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211050440.9A Pending CN115441723A (en) 2022-08-31 2022-08-31 Power supply conversion device

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116345621A (en) * 2023-03-23 2023-06-27 深圳唯乐高科技有限公司 Electric energy conversion device and electric two-wheeled vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116345621A (en) * 2023-03-23 2023-06-27 深圳唯乐高科技有限公司 Electric energy conversion device and electric two-wheeled vehicle
CN116345621B (en) * 2023-03-23 2024-01-26 深圳唯乐高科技有限公司 Electric energy conversion device and electric two-wheeled vehicle

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