Mobile energy vehicle, charging system and discharging system

Abstract

The utility model relates to the technical field of mobile energy, and provides a mobile energy vehicle, a charging system and a discharging system, the mobile energy vehicle comprises a charging and discharging cabinet and an energy storage member; a discharging port is formed in the charging and discharging cabinet, a discharging circuit is formed in the charging and discharging cabinet, and the discharging circuit is used for connecting the discharging port and the energy storage part so that the to-be-charged object can be communicated with the energy storage part; a specified switch is arranged in the charging and discharging cabinet, and the discharging circuit is adjusted to be switched between the booster circuit and the step-down circuit by adjusting the specified switch. Therefore, under the adjustment of the discharging circuit, the mobile energy vehicle can be adapted to various external to-be-charged objects with different voltage levels, the loss of the battery can be reduced, and the service life of the battery can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of mobile energy, in particular to a mobile energy vehicle, a charging system and a discharging system. Background Art

[0002] In recent years, with the rapid development of electric vehicles, the number of electric vehicles has increased; so in the face of some special situations, such as electric vehicles running out of power, old communities unable to install charging piles, and charging pile parking spaces occupied by other vehicles, mobile energy vehicles can be used to charge electric vehicles, thereby ensuring that electric vehicles have enough power to travel normally. In the case of external discharge through mobile energy vehicles, it is difficult for existing mobile energy vehicles to adjust their own voltage levels according to the external electric vehicle voltage, resulting in slow charging efficiency of mobile energy vehicles, or mobile energy vehicles causing battery loss and affecting battery life when charging externally. Utility Model Content

[0003] The purpose of the utility model is to provide a mobile energy vehicle, a charging system and a discharging system, which at least solve the above technical problems existing in the prior art.

[0004] In view of this, the utility model proposes a mobile energy vehicle on one hand, comprising: a charging and discharging cabinet and an energy storage component; the charging and discharging cabinet is formed with a discharge port, the charging and discharging cabinet is formed with a discharge circuit, the discharge circuit is used to connect the discharge port and the energy storage component; the discharge port is also used to connect the object to be charged so that the object to be charged is connected to the energy storage component; a designated switch is arranged in the charging and discharging cabinet; the designated switch is arranged in the discharge circuit, and the designated switch is adjusted so that the discharge circuit forms a boost circuit or a buck circuit, so that the energy storage component charges the object to be charged.

[0005] In one embodiment, the mobile energy vehicle includes an AC charging port; the charging and discharging cabinet is connected to the AC charging port, the charging and discharging cabinet forms an AC charging circuit, and the AC charging circuit is used to connect the AC charging port and the energy storage device; the AC charging port is used to connect an external AC power supply.

[0006] In one embodiment, the mobile energy vehicle further includes a DC charging circuit and a DC charging port; the DC charging circuit is used to connect the DC charging port with the energy storage component, and the DC charging port is used to connect an external DC power supply.

[0007] In one embodiment, the charging and discharging cabinet includes a first charging and discharging cabinet and a second charging and discharging cabinet; when the object to be charged is charged through the energy storage component, the first charging and discharging cabinet and the second charging and discharging cabinet are connected to the discharge port, wherein the first charging and discharging cabinet is in an inverter state and the second charging and discharging cabinet works in a rectifying state.

[0008] In one embodiment, when the energy storage component is charged by an external AC power supply, the first charging and discharging cabinet and the second charging and discharging cabinet are connected to the AC charging port, wherein the first charging and discharging cabinet and the second charging and discharging cabinet work in a rectifying state at the same time.

[0009] In one embodiment, the designated switch comprises at least a four-pole double-throw switch.

[0010] In one embodiment, the four-pole double-throw switch includes at least a first position and a second position; when the voltage of the material to be charged is higher than that of the mobile energy vehicle, the four-pole double-throw switch is switched to the first position to switch the discharge circuit to a boost circuit; when the voltage of the material to be charged is lower than that of the mobile energy vehicle, the four-pole double-throw switch is switched to the second position to switch the discharge circuit to a step-down circuit.

[0011] In one embodiment, the mobile energy vehicle also includes a driving motor; the charging and discharging cabinet is formed with a driving circuit, and the driving circuit is used to connect the driving motor and the energy storage component; when the mobile energy vehicle is driven, the control module controls the energy storage component to supply power to the driving motor through the driving circuit.

[0012] In one embodiment, the mobile energy vehicle further includes a driving motor and a motor controller. When the object to be charged is charged through the energy storage device, the motor controller is connected to the charging and discharging cabinet, the motor controller is in an inverter state, and the charging and discharging cabinet operates in a rectifying state.

[0013] In one embodiment, the mobile energy vehicle also includes an AC charging port; when the energy storage component is charged by an external AC power supply, the motor controller connects the AC charging port and the energy storage component, and the motor controller is used to convert the AC power input by the AC charging port into DC power and input it into the energy storage component.

[0014] On the other hand, the utility model further provides a discharge system, which at least includes a mobile energy vehicle.

[0015] On the other hand, the utility model further provides a charging system, which at least includes a mobile energy vehicle.

[0016] The utility model provides a mobile energy vehicle, comprising: a charging and discharging cabinet and an energy storage component; the charging and discharging cabinet is formed with a discharge port, the charging and discharging cabinet is formed with a discharge circuit, the discharge circuit is used to connect the discharge port and the energy storage component, so that the object to be charged is connected with the energy storage component; a designated switch is arranged in the charging and discharging cabinet, and the discharge circuit is regulated to switch between a boost circuit or a buck circuit by adjusting the designated switch; thus, the mobile energy vehicle can be adapted to external objects to be charged with various different voltage levels under the regulation of the discharge circuit, and the loss to the battery and the battery life can be reduced.

[0017] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic implementation modes and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0019] Figure 1 This is a structural diagram of a mobile energy vehicle according to an embodiment of the utility model;

[0020] Figure 2 A circuit diagram of a charging and discharging cabinet of a mobile energy vehicle in an embodiment of the utility model;

[0021] Figure 3 A circuit diagram of a first charging and discharging cabinet and a second charging and discharging cabinet of a mobile energy vehicle according to an embodiment of the utility model;

[0022] Figure 4 This is a three-phase inverter bridge circuit diagram of a mobile energy vehicle in an implementation mode of the utility model;

[0023] Figure 5 This is a circuit diagram of a motor controller for a mobile energy vehicle according to an embodiment of the utility model.

[0024] Description of reference numerals:

[0025] 1. Control module; 2. Charging and discharging cabinet; 21. Discharging port; 22. Discharging circuit; 23. Designated switch; 221. Boost circuit; 222. Buck circuit; 24. AC charging port; 25. DC charging port; 26. AC charging circuit; 27. DC charging circuit; 28. Drive circuit; 3. Drive motor; 4. Energy storage device; 201. First charging and discharging cabinet; 202. Second charging and discharging cabinet; 31. Motor controller. DETAILED DESCRIPTION

[0026] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0027] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so as to describe the embodiments of the utility model described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices; "fixed" or "fixed connection" generally refers to common mechanical connection methods, such as threaded connection, welding or bonding, etc.

[0029] Figure 1 This is a structural diagram of a mobile energy vehicle according to an embodiment of the utility model; Figure 2 This is a circuit diagram of a charging and discharging cabinet 2 of a mobile energy vehicle in accordance with an embodiment of the present utility model. Figure 1 and Figure 2 ;

[0030] In view of this, the utility model proposes a mobile energy vehicle on one hand, comprising: a charging and discharging cabinet 2 and an energy storage component 4; the charging and discharging cabinet 2 is formed with a discharge port 21, and the charging and discharging cabinet 2 is formed with a discharge circuit 22, and the discharge circuit 22 is used to connect the discharge port 21 and the energy storage component 4; the discharge port 21 is also used to connect the object to be charged so that the object to be charged is connected with the energy storage component 4; a designated switch 23 is arranged in the charging and discharging cabinet 2; the designated switch 23 is arranged in the discharge circuit 22, and the designated switch 23 is adjusted so that the discharge circuit 22 forms a boost circuit 221 or a buck circuit 222, so that the energy storage component 4 charges the object to be charged.

[0031] The utility model provides a mobile energy vehicle, comprising: a charging and discharging cabinet 2 and an energy storage component 4; the charging and discharging cabinet 2 is formed with a discharge port 21, and the charging and discharging cabinet 2 is formed with a discharge circuit 22, and the discharge circuit 22 is used to connect the discharge port 21 and the energy storage component 4, so that the object to be charged is connected with the energy storage component 4; a designated switch 23 is arranged in the charging and discharging cabinet 2, and the discharge circuit 22 is regulated to switch between a boost circuit 221 or a buck circuit 222 by adjusting the designated switch 23; so that the mobile energy vehicle can adapt to various external objects to be charged with different voltage levels under the regulation of the discharge circuit 22, and can reduce the loss to the battery and the battery life.

[0032] In the embodiment of the utility model, the mobile energy vehicle is also provided with a control module 1, which can be a control system of the mobile energy vehicle; the charging and discharging cabinet 2 is a power distribution device in the mobile energy vehicle; the energy storage component 4 is an original component for storing energy, which at least includes a battery or a battery pack; wherein the control module 1 is electrically connected to the charging and discharging cabinet 2, so as to control the electronic components in the charging and discharging cabinet 2, specifically, the contactor in the charging and discharging cabinet 2 can be controlled so as to form different circuits; the charging and discharging cabinet 2 is formed with a discharge port 21, and the discharge port 21 is used for connecting the object to be charged, specifically, a discharge gun can be connected, and then connected to the object to be charged through the discharge gun. wherein the object to be charged includes at least an electric vehicle. wherein the object to be charged can be connected to the discharge port 21 through a charging gun. wherein the charging and discharging cabinet 2 is formed with a discharge circuit 22, and the discharge circuit 22 is used to connect the discharge port 21 with the energy storage component 4, so that the object to be charged is connected to the energy storage component 4; a designated switch 23 is provided in the charging and discharging cabinet 2; the designated switch 23 at least includes a four-pole double-throw switch. The four-pole double-throw switch includes an electric four-pole double-throw switch and / or a manual four-pole double-throw switch. Furthermore, multiple switches can also be used for separate control. The designated switch 23 is arranged in the discharge circuit, and the designated switch 23 is adjusted so that the discharge circuit 22 forms a boost circuit 221 or a buck circuit 222. The boost circuit 221 or the buck circuit 222 is controlled by the control module 1 so that the energy storage component 4 can charge the object to be charged with a voltage higher than or lower than its own voltage, thereby improving the wide application of the mobile energy vehicle.

[0033] In one embodiment, the charging and discharging cabinet 2 is connected to an AC charging port 24 , and the charging and discharging cabinet 2 forms an AC charging circuit 26 , which is used to connect the AC charging port 24 and the energy storage component 4 ; the AC charging port 24 is used to connect an external AC power source.

[0034] In the embodiment of the utility model, the AC charging port 24 is used for connection when the external power supply is AC power, and the charging and discharging cabinet 2 forms an AC charging circuit 26. At this time, in the charging and discharging cabinet 2, the four-pole double-throw switch is in position 2, the charging three-phase contactor is energized, the driving three-phase contactor is disconnected, the step-up and step-down contactor is disconnected, and the three bridge arms in the charging and discharging cabinet 2 become a three-phase full-bridge rectifier circuit to charge the mobile energy vehicle energy storage component 4; in addition, when the external power supply is a single-phase AC power supply, the charging single-phase contactor is energized, and the energy storage component 4 can also be charged. Among them, the above-mentioned contactor is controlled by the control module 1.

[0035] The mobile energy vehicle is charged with AC, and a specific embodiment is provided;

[0036] The control module 1 detects the AC charging connection signal; at this time, the four-pole double-throw switch is in the second position; the control module 1 communicates and interacts with the internal battery system and the charging and discharging cabinet 2; the control module 1 controls the positive and negative contactors of the battery to be attracted and the auxiliary circuit high voltage is powered on; the control module 1 controls the DC negative contactor on the high-voltage side of the charging and discharging cabinet 2 to be attracted and the pre-charging control module 1 controls the drive three-phase contactor to be disconnected and the step-up and step-down contactor to be disconnected; the control module 1 controls the AC side pre-charging; the control module 1 controls the charging and discharging cabinet 2 to start, work in the rectification mode, and run at no load; the control module 1 communicates with the external AC power supply, interactively obtains the external maximum allowable power or manually sets the maximum charging power when there is no communication; the control module 1 obtains the real-time voltage, temperature, SOC and other information according to the charging demand voltage and current sent by the internal battery system, and controls the output voltage and current of the charging and discharging cabinet 2 to start charging the internal battery; the control module 1 communicates and interacts with the internal battery system in real time, and controls the real-time power and start and stop of the charging and discharging cabinet 2.

[0037] In one embodiment, the mobile energy vehicle further includes a DC charging circuit 27 and a DC charging port 25; the DC charging circuit 27 is used to connect the DC charging port with the energy storage device 4, and the DC charging port 25 is used to connect an external DC power supply.

[0038] In the embodiment of the utility model, the DC charging port is used for connection when the external power source is DC power. When the mobile energy vehicle needs to be charged by an external DC charging pile, the charging and discharging cabinet 2 is not started, and the external DC charging pile communicates and interacts with the mobile energy vehicle battery system to directly charge the energy storage component 4. In addition, if the external DC power source does not have the ability to regulate voltage and current, it can also be charged through the external discharge interface.

[0039] A mobile energy vehicle is charged with direct current, and a specific embodiment is provided;

[0040] The control module 1 detects the DC charging connection signal, and the control module 1 communicates and interacts with the internal battery system; the control module 1 controls the battery positive and negative contactors to be attracted and the auxiliary circuit high voltage is powered on; the control module 1 controls the DC charging positive and negative contactors to be attracted; the control module 1 controls the charging and discharging cabinet 2 not to start; the internal battery system communicates and interacts with the external DC charging pile, and sends charging demand voltage, current, battery temperature SOC and other information; the external DC charging pile communicates and interacts with the internal battery system in real time, and performs real-time power control and start-stop control.

[0041] Figure 3 This is a circuit diagram of the first charging and discharging cabinet and the second charging and discharging cabinet of a mobile energy vehicle in accordance with the embodiment of the utility model; please refer to Figure 3 .

[0042] In one embodiment, the charging and discharging cabinet 2 includes a first charging and discharging cabinet 201 and a second charging and discharging cabinet 202; when the object to be charged is charged through the energy storage component 4, the first charging and discharging cabinet 201 and the second charging and discharging cabinet 202 are connected to the discharge port 21, wherein the first charging and discharging cabinet 201 is in an inverter state, and the second charging and discharging cabinet 202 works in a rectifying state.

[0043] In the embodiment of the utility model, the first charging and discharging cabinet 201 and the second charging and discharging cabinet 202 are configured in the mobile energy vehicle. When discharging to the outside, the first charging and discharging cabinet 201 and the second charging and discharging cabinet 202 are connected to the discharge port 21, wherein the first charging and discharging cabinet 201 is in the inverter state, and the second charging and discharging cabinet 202 works in the rectification state, converting the DC power of the mobile energy vehicle battery pack into three-phase four-wire AC power, and then converting the three-phase four-wire AC power into DC power. When the energy storage component 4 is charged by an external AC power supply, the first charging and discharging cabinet 201 and the second charging and discharging cabinet 202 are connected to the AC charging port 24, wherein the first charging and discharging cabinet 201 and the second charging and discharging cabinet 202 work in the rectification state at the same time. When the energy storage component 4 is charged by an external DC power supply, the first charging and discharging cabinet 201 and the second charging and discharging cabinet 202 are not started, and the external DC charging pile communicates and interacts with the mobile energy vehicle BMS system to charge. Among them, the two charging and discharging cabinets of the mobile energy vehicle can specifically be two AC and DC charging and discharging cabinets, which can be used in series to realize the existing DC charging and discharging function, or can be used in parallel to realize the AC charging function; they can provide better applicability for the mobile energy vehicle.

[0044] In one embodiment, the four-pole double-throw switch includes at least a first position and a second position; when the voltage of the material to be charged is higher than that of the mobile energy vehicle, the four-pole double-throw switch is switched to the first position to switch the discharge circuit 22 to the boost circuit 221; when the voltage of the material to be charged is lower than that of the mobile energy vehicle, the four-pole double-throw switch is switched to the second position to switch the discharge circuit 22 to the step-down circuit 222.

[0045] In the embodiment of the utility model, the four-pole double-throw switch includes at least a first position and a second position, and the first position and the second position correspond to two groups of lines in the charging and discharging cabinet 2, respectively, so that the discharge port 21 is connected to different circuits. Wherein, when the voltage of the object to be charged is higher than that of the mobile energy vehicle, the four-pole double-throw switch is switched to the first position, so that the discharge circuit 22 is switched to the boost circuit 221; specifically, in the charging and discharging cabinet 2, the charging three-phase contactor is disconnected, the driving three-phase contactor is attracted, and the three bridge arms and AC filter inductors in the charging and discharging cabinet 2 form three groups of parallel boost circuits 221 to charge the object to be charged, that is, to charge the external battery pack. Wherein, when the voltage of the object to be charged is lower than that of the mobile energy vehicle, the four-pole double-throw switch is switched to the second position, the charging three-phase contactor in the charging and discharging cabinet 2 is disconnected, the driving three-phase contactor is attracted, the buck-boost contactor is attracted, and the three bridge arms and the driving motor coils in the charging and discharging cabinet 2 form three groups of parallel buck circuits 222 to charge the object to be charged, that is, to charge the external battery pack. The contactor mentioned above is controlled by the control module 1 .

[0046] The mobile energy vehicle charges the object to be charged, and provides a specific embodiment.

[0047] First, the external charging connection signal is obtained through the control module 1, i.e., the vehicle control system, and the internal and external voltage conditions are obtained through the voltage sensor; when the voltage of the object to be charged is higher than the voltage of the mobile energy vehicle, the four-pole double-throw switch is switched to the first position; a charging handshake message is sent to the external battery system through the control module 1, and the control module 1 communicates and interacts with the internal battery system and the charging and discharging cabinet 2; the control module 1 controls the battery positive and negative contactors to be attracted and the auxiliary circuit high voltage is powered on; the control module 1 controls the low-voltage side DC negative contactor of the charging and discharging cabinet 2 to be attracted and pre-charged; the control module 1 controls the charging three-phase contactor to be disconnected and driven The two-phase contactor is energized, and the step-up and step-down contactor is energized; the control module 1 controls the high-voltage side DC negative contactor to be energized and performs pre-charging; the control module 1 controls the charging and discharging cabinet 2 to start and work in the boost mode; the control module 1 communicates and interacts with the external battery system to obtain the charging requirement voltage, current, temperature, SOC and other information of the external battery system, and then controls the output voltage and current of the charging and discharging cabinet 2 according to the maximum discharge voltage and maximum discharge current allowed by the internal battery system, and starts charging the external battery; the control module 1 communicates and interacts with the external battery system in real time, and performs real-time power control and start-stop control of the charging and discharging cabinet 2.

[0048] When the voltage of the object to be charged is lower than the voltage of the mobile energy vehicle, the control module 1 detects that the four-pole double switch is switched to the second position; the control module 1 sends a charging handshake message to the external battery system, and the control module 1 communicates and interacts with the internal battery system and the charging and discharging cabinet 2; the control module 1 controls the positive and negative contactors of the battery to be attracted, and the auxiliary circuit is powered on at high voltage; the control module 1 controls the DC negative contactor on the low-voltage side of the charging and discharging cabinet 2 to be attracted, and pre-charges; the control module 1 controls the charging three-phase contactor to be disconnected, the driving three-phase contactor to be attracted, and the step-up and step-down contactor to be attracted; the control module 1 controls the DC negative contactor on the low-voltage side to be attracted, and pre-charges; the control module 1 controls the charging and discharging cabinet 2 to start and work in the step-down mode; the control module 1 communicates and interacts with the external battery system to obtain the charging demand voltage, current, temperature, SOC and other information of the external battery system, and then controls the output voltage and current of the charging and discharging cabinet 2 according to the maximum discharge voltage and maximum discharge current allowed by the internal battery system, and starts charging the external battery; the control module 1 communicates and interacts with the external battery system in real time, and controls the real-time power of the charging and discharging cabinet 2, as well as the start and stop control.

[0049] Figure 4 This is a three-phase inverter bridge circuit diagram of a mobile energy vehicle in an implementation mode of the utility model;

[0050] In one embodiment, the mobile energy vehicle also includes a drive motor 3; the charging and discharging cabinet 2 is formed with a drive circuit 28, and the drive circuit 28 is used to connect the drive motor 3 and the energy storage component 4; when the mobile energy vehicle is driven, the energy storage component 4 supplies power to the drive motor 3 through the drive circuit 28, and the drive motor 3 at least includes the drive motor.

[0051] In the embodiment of the utility model, when the mobile energy vehicle needs to travel, the four-pole double-throw switch of the charging and discharging cabinet 2 is in the second position, the charging three-phase contactor is disconnected, the step-up and step-down contactor is disconnected, the driving three-phase contactor is closed, and the three bridge arms in the charging and discharging cabinet 2 form a three-phase inverter bridge to form a drive circuit 28 to drive the motor to travel. Among them, the above-mentioned contactor is controlled by the control module 1.

[0052] When the mobile energy vehicle does not need to travel, by adjusting the four-pole double-throw switch to the second position, the charging three-phase contactor is disconnected, the driving three-phase contactor is closed, the step-up and step-down contactor is closed, and the three bridge arms in the charging and discharging cabinet 2 and the three coils of the driving motor form three sets of parallel step-down circuits 222, and the step-down circuit 222 is used to charge the external battery pack. It is also possible to adjust the four-pole double-throw switch to the first position, disconnect the charging three-phase contactor, and close the driving three-phase contactor, and the three bridge arms and AC filter inductors in the charging and discharging cabinet 2 form three sets of parallel step-up circuits 221, and the step-down circuit 222 is used to charge the external battery pack.

[0053] When the mobile energy vehicle does not need to drive, the four-pole double-throw switch is in the second position, the charging three-phase contactor is closed, the driving three-phase contactor is disconnected, the step-up and step-down contactor is disconnected, and the three bridge arms in the charging and discharging cabinet 2 form a three-phase full-bridge rectifier circuit, which charges the battery pack of the mobile charging vehicle. When the external power supply is a single-phase AC power supply, the charging single-phase contactor is closed, and the mobile charging vehicle can also be charged.

[0054] By reusing the components in the charging and discharging cabinet 2, a driving circuit 28 can be formed to drive the vehicle, a boost circuit 221 or a buck circuit 222 can be formed to charge the object to be charged, and a full-bridge rectifier circuit can be formed to charge the battery pack of the mobile charging vehicle. The circuit structure can be simplified without affecting the function of the mobile energy vehicle.

[0055] The mobile energy vehicle is driven to provide a specific embodiment;

[0056] Control module 1 detects that the vehicle is in driving mode, and the four-pole double-throw switch is in the second position; control module 1 controls the charging three-phase contactor to disconnect and the step-up and step-down contactor to disconnect; control module 1 controls the driving three-phase contactor to close; control module 1 controls the battery positive and negative contactors to close and the auxiliary circuit high voltage to power on; control module 1 controls the high-voltage side DC negative contactor of the charging and discharging cabinet 2 to close and pre-charge; control module 1 controls the charging and discharging cabinet 2 to start and work in three-phase inverter mode; control module 1 collects information such as traction brake gear and level, and controls the motor operation according to the maximum allowable discharge power allowed by the internal battery system.

[0057] Figure 5 This is a circuit diagram of a motor controller for a mobile energy vehicle according to an embodiment of the utility model.

[0058] Please refer to Figure 4 ;

[0059] In one embodiment, the mobile energy vehicle also includes a driving motor 3 and a motor controller 31. When the object to be charged is charged through the energy storage device 4, the motor controller 31 is connected to the charging and discharging cabinet 2, the motor controller 31 is in an inverter state, and the charging and discharging cabinet 2 works in a rectification state.

[0060] In an embodiment of the utility model, when the mobile energy vehicle discharges externally, a designated switch is connected to the external discharge interface, the motor controller 31 drives the three-phase contactor to disconnect, and the charging three-phase contactor is energized, and operates in the inverter mode to convert the DC power of the mobile energy vehicle energy storage device into three-phase AC power; the charging and discharging cabinet operates in the rectification mode, and then converts the three-phase AC power into DC power, which is output to the external battery pack through the designated switch. Among them, the designated switch can be a double-pole double-throw switch. Through the reuse of the motor controller 31, the motor controller can be used to drive the vehicle when driving, and can be used for charging and discharging when charging and discharging.

[0061] Furthermore, the mobile energy vehicle also includes an AC charging port 24; when the energy storage device 4 is charged by an external AC power supply, the motor controller 31 connects the AC charging port 24 and the energy storage device, and the motor controller 31 is used to convert the AC power input by the AC charging port 24 into DC power and input it into the energy storage device.

[0062] Specifically, when the mobile energy vehicle needs an external AC charging source to charge itself, the designated switch is connected to the mobile energy vehicle energy storage device, the motor controller 31 drives the three-phase contactor to disconnect, and the motor controller 31 and the AC / DC charging and discharging cabinet work in the rectification mode at the same time, converting the external AC power into DC power, and inputting it into the mobile energy vehicle energy storage device, thereby realizing self-charging. When the mobile energy vehicle needs an external DC power supply to charge itself, the motor controller 31 and the AC / DC charging and discharging cabinet are not started, and the external DC charging pile communicates and interacts with the mobile charging vehicle BMS system to charge.

[0063] The utility model also provides a discharge system, which at least comprises a mobile energy vehicle and an object to be charged.

[0064] The utility model also provides a charging system, which at least includes a mobile energy vehicle and an external charging device; the external charging device includes an external DC power supply and / or an external AC power supply.

[0065] The utility model provides a mobile energy vehicle, which is provided with a control module, a charging and discharging cabinet and an energy storage component; the control module is electrically connected to the charging and discharging cabinet; the charging and discharging cabinet is formed with a discharge port, and the charging and discharging cabinet is formed with a discharge circuit, and the discharge circuit is used to connect the discharge port and the energy storage component, so that the object to be charged is connected with the energy storage component; a designated switch is arranged in the charging and discharging cabinet, and the discharge circuit is coordinated with the designated switch to realize the switching of the discharge circuit between a boost circuit or a buck circuit, so as to cope with the situation of high external voltage or low external voltage, the boost circuit or the buck circuit is controlled by the control module, and the object to be charged is effectively charged, so that the internal and external voltages are stable during charging, thereby ensuring that the charging efficiency is in a normal state, reducing the loss to the battery and affecting the battery life.

[0066] It should be noted that, for the above-mentioned method embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps can be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0067] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0068] In the several embodiments provided by the present utility model, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are only schematic, such as the division of units, which is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection of devices or units can be electrical or other forms.

[0069] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0070] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0071] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the utility model, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, mobile terminal, server or network device, etc.) to execute all or part of the steps of the methods of each embodiment of the utility model.

[0072] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A mobile energy vehicle, It is characterized in that It comprises: a charging and discharging cabinet (2) and an energy storage component (4); The charging and discharging cabinet (2) is formed with a discharge port (21), and the charging and discharging cabinet (2) is formed with a discharge circuit (22), and the discharge circuit (22) is used to connect the discharge port (21) and the energy storage component (4); the discharge port (21) is also used to connect the object to be charged, so that the object to be charged is connected with the energy storage component (4); A designated switch (23) is provided in the charging and discharging cabinet (2); the designated switch (23) is provided in the discharge circuit (22); the designated switch (23) is adjusted so that the discharge circuit (22) forms a boost circuit (221) or a buck circuit (222), so that the energy storage component (4) charges the object to be charged.

2. The mobile energy vehicle according to claim 1, It is characterized in that The mobile energy vehicle comprises an AC charging port (24); The charging and discharging cabinet (2) is connected to an AC charging port (24), and the charging and discharging cabinet (2) forms an AC charging circuit (26), and the AC charging circuit (26) is used to connect the AC charging port (24) and the energy storage component (4); the AC charging port (24) is used to connect an external AC power source.

3. The mobile energy vehicle according to claim 1, It is characterized in that The mobile energy vehicle further comprises a DC charging circuit (27) and a DC charging port (25); The DC charging circuit (27) is used to connect the DC charging port and the energy storage component (4), and the DC charging port (25) is used to connect an external DC power supply.

4. The mobile energy vehicle according to claim 1, It is characterized in that The charging and discharging cabinet (2) comprises a first charging and discharging cabinet and a second charging and discharging cabinet; When the object to be charged is charged through the energy storage component (4), the first charging and discharging cabinet and the second charging and discharging cabinet are connected to the discharge port (21), wherein the first charging and discharging cabinet is in an inverter state and the second charging and discharging cabinet operates in a rectifying state.

5. The mobile energy vehicle according to claim 4, It is characterized in that When the energy storage component (4) is charged by an external AC power supply, the first charging and discharging cabinet and the second charging and discharging cabinet are connected to the AC charging port (24), wherein the first charging and discharging cabinet and the second charging and discharging cabinet work in a rectifying state at the same time.

6. The mobile energy vehicle according to claim 1, It is characterized in that The designated switch (23) comprises at least a four-pole double-throw switch.

7. The mobile energy vehicle according to claim 6, It is characterized in that The four-pole double-throw switch includes at least a first position and a second position; When the voltage of the object to be charged is higher than that of the mobile energy vehicle, the four-pole double-throw switch is switched to the first position, so that the discharge circuit (22) is switched to the boost circuit (221); When the voltage of the object to be charged is lower than that of the mobile energy vehicle, the four-pole double-throw switch is switched to the second position, so that the discharge circuit (22) is switched to the step-down circuit (222).

8. The mobile energy vehicle according to any one of claims 1 to 7, It is characterized in that The mobile energy vehicle also includes a drive motor (3); The charging and discharging cabinet (2) is formed with a driving circuit (28), and the driving circuit (28) is used to connect the driving motor (3) and the energy storage component (4); When the mobile energy vehicle is driven, the energy storage component (4) supplies power to the drive motor (3) through the drive circuit (28).

9. The mobile energy vehicle according to claim 1, It is characterized in that The mobile energy vehicle further comprises a driving motor (3) and a motor controller. When the object to be charged is charged via the energy storage component (4), the motor controller is connected to the charging and discharging cabinet (2), the motor controller is in an inverter state, and the charging and discharging cabinet (2) operates in a rectifying state.

10. The mobile energy vehicle according to claim 9, It is characterized in that The mobile energy vehicle also includes an AC charging port (24); When the energy storage component (4) is charged by an external AC power source, the motor controller is connected to the AC charging port (24) and the energy storage component, and the motor controller is used to convert the AC power input from the AC charging port (24) into DC power and input it into the energy storage component.

11. A discharge system, It is characterized in that The discharge system comprises at least the mobile energy vehicle according to any one of claims 1-10.

12. A charging system, It is characterized in that The charging system comprises at least the mobile energy vehicle according to any one of claims 1-10.

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