Portable charging and discharging equipment

Abstract

The utility model provides a portable charging and discharging device. A housing is provided with an input interface and an output interface. The input interface at least comprises a high-voltage direct-current input interface, and the output interface comprises a high-voltage direct-current output interface and a standard alternating-current output interface; a DC / DC converter module and an inverter module are arranged in the shell, the input end of the DC / DC converter module is connected with the input interface, the output end of the DC / DC converter module is connected with the high-voltage DC output interface, the input end of the inverter module is connected with the input interface, and the output end of the inverter module is connected with the standard AC output interface; and a control unit is arranged in the shell, is electrically connected with the input interface, the output interface, the DC / DC converter module and the inverter module respectively, and is used for acquiring voltage and current signals of the input interface and realizing the output of the voltage and current signals of the output interface. According to the utility model, by realizing the charging and discharging interaction between the vehicle-mounted batteries and the charging of household appliances by the vehicle-mounted batteries, the idle waste of the vehicle battery with higher battery capacity is reduced.

Description

Technical Field

[0001] The utility model relates to the field of electric vehicle charging and discharging equipment, and particularly relates to a portable charging and discharging equipment. Background Art

[0002] With the popularization of electric vehicles, the battery capacity of electric vehicles is getting higher and higher. Restricted by the grid capacity, the shortage of fast charging piles and the installation restrictions of household slow charging, etc., lead to charging queues, etc. Electric vehicles have range anxiety in areas lacking charging piles. At the same time, when electric vehicles are idle or parked at home, the batteries are mostly idle. There is no interactive device for using the battery as energy storage charging between vehicle owners, making the battery resources operate as assets and unable to use the in-vehicle battery to supply power to the family temporarily when the power grid is powered off. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies of the above background art and propose a portable charging and discharging equipment that can use the in-vehicle battery as energy storage interaction between vehicle owners or between the in-vehicle battery and household appliances.

[0004] To solve the above technical problems, the utility model provides a portable charging and discharging equipment, including:

[0005] A housing, on which an input interface and an output interface are provided;

[0006] The input interface at least includes a high-voltage DC input interface, and the output interface includes a high-voltage DC output interface and a standard AC output interface;

[0007] A DC / DC converter module and an inverter module are arranged in the housing. The input end of the DC / DC converter module is connected to the input interface, and the output end is connected to the high-voltage DC output interface. The input end of the inverter module is connected to the input interface, and the output end is connected to the standard AC output interface;

[0008] A control unit is arranged in the housing, which is electrically connected to the input interface, the output interface, the DC / DC converter module and the inverter module respectively, collects the voltage and current signals of the input interface, and regulates the conversion signals of the DC / DC converter module and the inverter module to realize the output of the voltage and current signals of the output interface.

[0009] Preferably, the control unit includes a microcontroller (MCU) and a sampling circuit. The sampling circuit includes an input-end acquisition circuit and an output-end acquisition circuit. The input-end acquisition circuit is connected to the input interface, the output-end acquisition circuit is connected to the output interface, and the output ends of the sampling circuit are all connected to the ADC input port of the microcontroller through signal lines.

[0010] Preferably, the I / O interface of the microcontroller (MCU) is respectively connected to the signal input interface of the DC / DC converter module and the signal input interface of the inverter module through control signal lines.

[0011] Preferably, it further includes a communication module, and the communication module is communicatively connected to the microcontroller (MCU) through a communication interface.

[0012] Compared with the related art, the present utility model has the following beneficial effects:

[0013] Through the portable charging and discharging device of the present utility model, the charging and discharging interaction between vehicle-mounted batteries and the charging of household appliances by vehicle-mounted batteries can be realized, reducing the idle waste of vehicle-mounted batteries with a higher battery capacity, making them resource-based and asset-based, optimizing the allocation of vehicle-mounted battery resources and assets, and overall improving the utilization rate of social overall resources and energy. Description of the Drawings

[0014] Figure 1 It is the system architecture diagram of the embodiment of the present utility model;

[0015] Figure 2 It is the overall block diagram of the embodiment of the present utility model;

[0016] Wherein:

[0017] 1. Housing, 2. High-voltage DC input interface, 3. High-voltage DC output interface, 4. Standard AC output interface, 5. Sampling circuit, 6. Microcontroller (MCU), 7. DC / DC converter module, 8. Inverter module, 9. Communication module. Detailed Embodiments

[0018] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0019] As Figure 1 and Figure 2 shown, a portable charging and discharging device includes:

[0020] A housing 1, and an input interface and an output interface are arranged on the housing 1;

[0021] The input interface at least includes a high-voltage DC input interface 2, and the output interface includes a high-voltage DC output interface 3 and a standard AC output interface 4; the high-voltage DC input interface 2 is used to connect the on-vehicle charger of a new energy vehicle, collect information such as the voltage and current of the power supply end through a control unit, and transmit the signal to the microcontroller (MCU) 6. The high-voltage DC output interface 3 and the standard AC output interface 4 are respectively used to connect the powered vehicle or household appliances. The high-voltage DC output interface 3 is used to output direct current that meets the charging of the powered vehicle battery, and the standard AC output interface 4 can be set as a socket to output AC power supply for household appliances.

[0022] A DC / DC converter module 7 and an inverter module 8 are arranged in the housing 1. The input end of the DC / DC converter module 7 is connected to the input interface, and the output end is connected to the high-voltage DC output interface 3. The input end of the inverter module 8 is connected to the input interface, and the output end is connected to the standard AC output interface 4. A control unit is arranged in the housing 1, and the control unit includes a microcontroller (MCU) 6 and a sampling circuit 5. The sampling circuit 5 includes an input-end acquisition circuit and an output-end acquisition circuit. It should be noted that the sampling circuit 5 is a conventional technology known to those skilled in the art, and there is no problem of insufficient disclosure. The input-end acquisition circuit is connected to the input interface, the output-end acquisition circuit is connected to the output interface, and the output ends of the sampling circuit 5 are all connected to the ADC input port of the microcontroller (MCU) 6 through signal lines. The input-end acquisition circuit and the output-end acquisition circuit respectively acquire the electrical signals of the input interface and the output interface, and convert parameters such as current and voltage into digital signals in real time, and transmit them to the microcontroller (MCU) 6 for processing. In some specific embodiments, the microcontroller (MCU) 6 can adopt the STM32F4 series or the PIC18F series. By being electrically connected to the input interface, the output interface, the DC / DC converter module 7 and the inverter module 8 respectively, the voltage and current signals of the input interface and the output interface are acquired. The I / O interface of the microcontroller (MCU) 6 is connected to the signal input interface of the DC / DC converter module 7 and the signal input interface of the inverter module 8 through control signal lines respectively. By controlling the microcontroller (MCU) 6 to regulate the conversion signals of the DC / DC converter module 7 and the inverter module 8, the output of the voltage and current signals of the output interface is realized. In some other specific embodiments, a communication module 9 is further included, and the communication module 9 is communicatively connected to the microcontroller (MCU) 6 through a communication interface. The information of the portable charging and discharging device of the present application is communicated externally.

[0023] The working process of this embodiment is as follows: When vehicle-to-vehicle charging is required, the high-voltage DC input interface and the high-voltage DC output interface are respectively connected to the on-vehicle charger and the power-receiving battery of the charging new energy vehicle. The control unit detects the DC input of the high-voltage DC input interface through the input terminal acquisition circuit and transmits it to the microcontroller (MCU) in the control unit through a signal line, and processes this information as the conversion initial value. At the same time, the control unit detects the DC output demand of the high-voltage DC output interface through the output terminal acquisition circuit and transmits it to the microcontroller (MCU) in the control unit through a signal line, and processes this information as the conversion target value. The microcontroller (MCU) starts the DC / DC converter module according to the detected information. The control unit sends a start signal to the converter module through the I / O interface. After receiving the signal, the converter module starts to work, adjusts the internal circuit parameters, the duty cycle of the switching tube, etc., so as to change the magnitude of the output voltage and current to make it reach the target value. The converter module acts according to the received control signal.

[0024] When vehicle-to-home appliance charging is required, the high-voltage DC input interface and the standard AC output interface are respectively connected to the on-vehicle charger of the charging new energy vehicle and the power-receiving home appliance. The control unit detects the DC input of the high-voltage DC input interface through the input terminal acquisition circuit and transmits it to the microcontroller (MCU) in the control unit through a signal line, and processes this information as the conversion initial value. At the same time, the control unit detects the AC output demand of the standard AC output interface through the output terminal acquisition circuit and transmits it to the microcontroller (MCU) in the control unit through a signal line, and processes this information as the conversion target value. The microcontroller (MCU) starts the inverter module according to the detected information. The control unit sends a start signal to the inverter module through the I / O interface. After receiving the signal, the inverter module starts to work. According to the instruction of the control unit, the inverter module converts direct current into alternating current to make it reach the target value for output.

[0025] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A portable charging and discharging device, characterized in that: include: A housing, wherein an input interface and an output interface are arranged on the housing; The input interface at least includes a high-voltage DC input interface, and the output interface includes a high-voltage DC output interface and a standard AC output interface; A DC / DC converter module and an inverter module are arranged in the housing, wherein the input end of the DC / DC converter module is connected to the input interface, and the output end is connected to the high-voltage DC output interface; the input end of the inverter module is connected to the input interface, and the output end is connected to the standard AC output interface; A control unit is arranged in the shell, which is electrically connected to the input interface, the output interface, the DC / DC converter module and the inverter module respectively, collects the voltage and current signals of the input interface, and regulates the conversion signals of the DC / DC converter module and the inverter module to realize the output of the voltage and current signals of the output interface.

2. A portable charging and discharging device according to claim 1, characterized in that: The control unit includes a microcontroller (MCU) and a sampling circuit, the sampling circuit includes an input acquisition circuit and an output acquisition circuit, the input acquisition circuit is connected to the input interface, the output acquisition circuit is connected to the output interface, and the output ends of the sampling circuits are connected to the ADC input port of the microcontroller through signal lines.

3. A portable charging and discharging device according to claim 2, characterized in that: The I / O interface of the microcontroller (MCU) is respectively connected to the signal input interface of the DC / DC converter module and the signal input interface of the inverter module through control signal lines.

4. A portable charging and discharging device according to claim 2, characterized in that: It also includes a communication module, which is connected to the microcontroller (MCU) through a communication interface.

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