Inverter, control device, and control system

Abstract

The utility model provides an inverter, a control device and a control system. The inverter comprises an AC input interface, an AC output interface, a DC interface and a bidirectional inverter circuit. Wherein the AC input interface is used for being externally connected with an alternating current power supply so as to input alternating current. The AC output interface is used for being externally connected with electric equipment so as to output alternating current to the electric equipment. The DC interface is used for being externally connected with a direct-current power supply so as to input or output direct current to the direct-current power supply. And the bidirectional inverter circuit is used for converting alternating current input by the AC input interface into direct current and outputting the direct current to the DC interface, and is also used for converting the direct current input by the DC interface into alternating current and outputting the alternating current to the AC output interface. The inverter is high in versatility and use flexibility.

Description

Technical Field

[0001] The present application relates to the technical field of inverters, and in particular to an inverter, a control device, and a control system. Background Art

[0002] As an important vehicle-mounted tool, a vehicle inverter converts the DC power of the vehicle's power supply into AC power, similar to mains electricity, for use by other electrical appliances. However, the inventors discovered that when the vehicle's power supply is depleted, it is difficult to directly charge a DC power supply, such as the vehicle's power supply, using an AC power source like mains electricity. Utility Model Content

[0003] The main purpose of this application is to provide an inverter, a control device and a control system, which expands the inverter's function of bidirectional conversion between AC power and DC power, and can be used in scenarios such as AC power such as mains electricity charging DC power such as vehicle power through an inverter.

[0004] In a first aspect, the present application provides an inverter, comprising:

[0005] AC input interface, used to connect to an external AC power source to input AC power;

[0006] AC output interface, used for connecting to external power-consuming equipment to output alternating current to the power-consuming equipment;

[0007] A DC interface, used for connecting to an external DC power supply to input or output DC power to the DC power supply;

[0008] The bidirectional inverter circuit is used to convert the alternating current input by the AC input interface into direct current and output the direct current to the DC interface, and also to convert the direct current input by the DC interface into alternating current and output the alternating current to the AC output interface.

[0009] In a second aspect, the present application further provides a control device for controlling the inverter described in the embodiments of the present application, the control device comprising:

[0010] A second display module is used to display the working status or device parameters of the inverter;

[0011] a second touch control module, configured to receive a user's manual control to generate a control signal for the inverter;

[0012] The second communication module is used to send the control signal to the inverter and receive the working status or device parameters of the inverter.

[0013] In a third aspect, the present application also provides a control system, which includes an inverter as described in an embodiment of the present application, and a control device as described in an embodiment of the present application; wherein the inverter is wirelessly connected to the control device, and the control device is used to control the inverter.

[0014] The embodiment of the present application provides an inverter, a control device and a control system, wherein the inverter includes an AC input interface, an AC output interface, a DC interface and a bidirectional inverter circuit. The AC input interface is used to connect to an external AC power source to input AC power. The AC output interface is used to connect to an external power-consuming device to output AC power to the power-consuming device. The DC interface is used to connect to an external DC power source to input or output DC power to the DC power source. The bidirectional inverter circuit is used to convert the AC power inputted by the AC input interface into DC power and output DC power to the DC interface, and is also used to convert the DC power inputted by the DC interface into AC power and output AC power to the AC output interface. The inverter provided in the embodiment of the present application can realize bidirectional voltage conversion between an AC power source and a DC power source. Through the inverter, not only can an AC power source such as mains electricity be used to charge a DC power source such as a vehicle power source, but a DC power source such as a vehicle power source can also be used to power a power-consuming device, thereby greatly improving the versatility and flexibility of the inverter. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0016] Figure 1A and Figure 1B is a schematic diagram of an embodiment of an inverter provided in an embodiment of the present application;

[0017] Figure 2 A circuit diagram of an embodiment of an inverter provided in an embodiment of the present application;

[0018] Figure 3 A circuit diagram of an embodiment of a bidirectional inverter circuit provided in an embodiment of the present application;

[0019] Figure 4 A circuit diagram of another embodiment of the inverter provided in the embodiment of the present application;

[0020] Figure 5 A circuit diagram of another embodiment of the inverter provided in the embodiment of the present application;

[0021] Figure 6A circuit diagram of another embodiment of the inverter provided in the present application;

[0022] Figure 7 A circuit diagram of another embodiment of the inverter provided in the present application;

[0023] Figure 8 A schematic diagram showing the connection between a bidirectional inverter circuit and a communication control circuit according to an embodiment of the present application;

[0024] Figure 9 A circuit diagram of an implementation of a communication control circuit provided in an embodiment of the present application.

[0025] Figure 10 A circuit diagram of another embodiment of the inverter provided in the present application;

[0026] Figure 11 A circuit diagram of another embodiment of the inverter provided in the present application;

[0027] Figure 12 A circuit diagram of another embodiment of the inverter provided in the present application;

[0028] Figure 13 A schematic diagram showing a connection between a control device and a communication control circuit according to an embodiment of the present application;

[0029] Figure 14 A schematic block diagram of a control device provided in an embodiment of the present application;

[0030] Figure 15 A schematic block diagram of a control system provided in an embodiment of the present application.

[0031] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0032] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application; it is obvious that the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0033] The flowcharts shown in the accompanying drawings are for illustrative purposes only and do not necessarily include all contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps may be decomposed, combined, or partially merged, so the actual execution order may vary depending on the actual situation.

[0034] The following describes some embodiments of the present application in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features therein may be combined with each other.

[0035] Figure 1A and Figure 1B Schematic diagram of an embodiment of the inverter provided in the embodiment of the present application. Figure 1A and Figure 1B As shown, the inverter 100 can be called a power converter, and the inverter 100 includes an AC input interface 101, an AC output interface 102, and a DC interface 103. The AC input interface 101 is used to connect to an external AC power source, the AC output interface 102 is used to connect to an external power device, and the DC interface 103 is used to connect to an external DC power source.

[0036] Among them, the inverter 100 can be used as a vehicle-mounted inverter for use in vehicle-mounted electrical appliances. The AC power supply is, for example, a mains power supply, and of course it can also be other AC power supplies such as an uninterruptible power supply (UPS). Electrical equipment includes, for example, electronic devices such as mobile phones, projectors, fans, cameras, and laptops. The DC power supply is, for example, a vehicle-mounted power supply, and of course it can also be other power supplies, such as energy storage devices. The AC input interface 101 and the AC output interface 102 can be one or more, for example, the AC output interface 102 can include a USB (Universal Serial Bus) interface, a type-c interface, and the like.

[0037] like Figure 1A and Figure 1B As shown, the inverter 100 further includes a housing 104 , in which the AC input interface 101 , the AC output interface 102 and the DC interface 103 are provided. The inverter 100 further includes a bidirectional inverter circuit (not shown) provided in the housing 104 .

[0038] In one embodiment, the inverter 100 further includes at least one of a first display module 105 and a first touch control module 106. The first display module 105 is used to display the operating status or device parameters of the inverter 100. The first touch control module 106 is used to receive manual control from the user to generate a power on / off control signal for the inverter 100. The first touch control module 106 is disposed in the housing 104 and includes at least one of a key, a button, a touch screen, or a toggle switch.

[0039] The power-on / off control signals include a power-on control signal and a power-off control signal. The power-on control signal is used to power on the inverter 100, while the power-off control signal is used to power off the inverter 100. Operating states may include standby, power-on, and power-off states, as well as operating modes such as charging mode, inverter mode, and bypass mode. Device parameters may include input voltage, output voltage, input power, output power, input current, output current, temperature, and battery level.

[0040] Figure 2 This is a circuit diagram of an embodiment of the inverter provided in the present application. Figure 2 As shown, the inverter 100 includes an AC input interface 101 , an AC output interface 102 , a DC interface 103 and a bidirectional inverter circuit 110 .

[0041] The AC input interface 101 is used to connect to an external AC power source 10 to input AC power. The AC output interface 102 is used to connect to an external power-consuming device 20 to output AC power to the power-consuming device 20. The DC interface 103 is used to connect to an external DC power source 30 to input or output DC power to or from the DC power source 30. The bidirectional inverter circuit 110 is used to convert the AC power inputted by the AC input interface 101 into DC power and output the DC power to the DC interface 103. The bidirectional inverter circuit 110 is also used to convert the DC power inputted by the DC interface 103 into AC power and output the AC power to the AC output interface 102.

[0042] The AC power source 10 is, for example, a mains supply, and the DC power source 30 is, for example, a vehicle power supply. The power consumption device 20 is used to consume power and is, for example, a load such as an electronic device. The bidirectional inverter circuit 110 connects the AC input interface 101, the AC output interface 102, and the DC interface 103. The AC input interface 101 and the AC output interface 102 of the inverter 100 can be the high-voltage side, while the DC interface 103 of the inverter 100 can be the low-voltage side.

[0043] It should be noted that when the current direction of the inverter 100 is from the high-voltage side to the low-voltage side, that is, when the bidirectional inverter circuit 110 converts the AC power input by the AC input interface 101 into DC power and outputs DC power to the DC interface 103, the inverter 100 can be used in the scenario where the AC power supply 10 charges the DC power supply 30. At this time, the inverter 100 is in charging mode.

[0044] It should be noted that when the current direction of the inverter 100 is from the low-voltage side to the high-voltage side, that is, when the bidirectional inverter circuit 110 converts the DC power input by the DC interface 103 into AC power and outputs AC power to the AC output interface 102, the inverter 100 can be used in a scenario where the DC power supply 30 supplies power to the electrical equipment 20. At this time, the inverter 100 is in inverter mode.

[0045] In some examples, the bidirectional inverter circuit 110 may not operate, but may simply provide a path between the AC power source 10 and the powered device 20, with the AC power source 10 supplying power to the powered device 20. Alternatively, the bidirectional inverter circuit 110 may operate while the AC power source 10 supplies power to the powered device 20, and the AC power source 10 may charge the DC power source 30. In this case, the inverter 100 is in bypass mode.

[0046] In the embodiment of the present application, the inverter 100 can achieve bidirectional conversion of AC power to DC power between the AC power source 10 and the DC power source 30. Therefore, the inverter 100 can not only use the AC power source 10, such as the mains, to charge the DC power source 30, such as the vehicle power supply, but also use the DC power source 30, such as the vehicle power supply, to power the power-consuming device 20. This greatly improves the versatility and flexibility of the inverter 100.

[0047] Exemplarily, the AC input interface 101 includes a mains input interface, and the AC power supply 10 includes a mains power supply. The mains power supply is used to provide, for example, 220V AC power, and the mains input interface is used to receive, for example, 220V AC power.

[0048] Illustratively, DC interface 103 includes a vehicle power connector, and DC power supply 30 includes a vehicle power supply, which includes at least one of a lithium battery, a sodium battery, a lead-acid battery, or a supercapacitor. The vehicle power supply is, for example, 12V, 24V, or 48V DC power, and the vehicle power connector is configured to receive, for example, 12V, 24V, or 48V DC power.

[0049] Exemplarily, the DC interface 103 includes an energy storage device interface, and the DC power supply 30 includes an energy storage device. The energy storage device may include one or more energy storage units, such as one or more batteries. Multiple batteries may be connected in series or parallel to form the energy storage device.

[0050] In one embodiment, the AC input interface 101 includes a mains power input interface, the AC power supply 10 includes a mains power supply, the DC interface 103 includes a vehicle power connection port, the DC power supply 30 includes a vehicle power supply, and the vehicle power supply includes at least one of a lithium battery, a sodium battery, a lead-acid battery, or a supercapacitor.

[0051] It should be noted that when the inverter 100 is a vehicle-mounted inverter, the AC power source 10 can be a mains power source, and the DC power source 30 can be a vehicle-mounted power source. Therefore, the inverter 100 can be used in scenarios where the mains power source is used to charge the vehicle-mounted power source, in which case the inverter 100 is in charging mode.

[0052] The vehicle power supply includes a start-stop power supply, and the DC interface 103 is used to output a set DC power for charging the start-stop power supply. The set DC power includes at least one of 12V DC, 24V DC, or 48V DC. The 12V, 24V, or 48V voltages here do not limit the DC power output voltage of the DC interface 103, but rather refer to the voltage range capable of charging the 12V, 24V, or 48V vehicle power supply.

[0053] In one embodiment, the DC interface 103 includes a positive terminal and a negative terminal, wherein the positive terminal is used to connect to the positive terminal of the DC power source 30, and the negative terminal is used to connect to the negative terminal of the DC power source 30. The positive terminal and the negative terminal may include connecting posts, connecting wires, etc.

[0054] In one embodiment, if Figure 3 As shown, the bidirectional inverter circuit 110 includes a DC-DC conversion circuit 111 and an AC-DC conversion circuit 112 .

[0055] The DC-DC conversion circuit 111 is used to connect to the DC interface 103 , and is also connected to the AC-DC conversion circuit 112 . The AC-DC conversion circuit 112 is also connected to the AC input interface 101 and the AC output interface 102 .

[0056] It should be noted that the DC-DC converter circuit 111 is used to step up or step down DC power. The AC-DC converter circuit 112 is used to perform AC-DC conversion or direct-to-AC conversion, that is, converting AC power to DC power or converting DC power to AC power, and can also perform step-up and step-down conversion. For example, the AC-DC converter circuit 112 can convert 400V DC power to 220V AC power, or it can also step up 220V AC power to 400V DC power.

[0057] In one embodiment, if Figure 4 As shown, the DC-DC conversion circuit 111 is used to boost the DC power input from the DC interface 103 . The AC-DC conversion circuit 112 is used to convert the DC power flowing through into AC power and output it to the AC output interface 102 .

[0058] For example, when the current direction of the inverter 100 is from the low-voltage side to the high-voltage side, that is, when the inverter 100 is in the inverter mode, the DC-DC conversion circuit 111 is used to boost the DC power output by the DC power supply 30, and the AC-DC conversion circuit 112 is used to convert the DC power flowing through it into AC power and output it to the AC input interface 101.

[0059] In one embodiment, if Figure 4As shown, the AC-DC conversion circuit 112 is further used to convert the AC power inputted from the AC input interface 101 into DC power. The DC-DC conversion circuit 111 is further used to step down the DC power flowing through the DC power and output it to the DC interface 103 .

[0060] For example, when the current direction of the inverter 100 is from the high-voltage side to the low-voltage side, that is, when the inverter 100 is in charging mode, the AC-DC conversion circuit 112 is also used to convert the AC power input by the AC input interface 101 (such as the power interface) into AC-DC; the DC-DC conversion circuit 111 is also used to step down the DC power flowing through it and output it to the DC power supply 30.

[0061] In one embodiment, if Figure 5 As shown, the AC / DC conversion circuit 112 includes a DC / AC conversion branch 1121 and an AC / DC conversion branch 1122. The DC / AC conversion branch 1121 is configured to convert the DC power input by the DC / DC conversion circuit 111 into an AC power and output the converted power to the AC output interface 102. The AC / DC conversion branch 1122 is configured to convert the AC power input by the AC input interface 101 into an AC / DC power and output the converted power to the DC / DC conversion circuit 111.

[0062] The DC-AC conversion branch 1121 can operate in a PWM (Sinusoidal Pulse Width Modulation) mode to generate sinusoidal AC power. The AC-DC conversion branch 1122 can operate in a bridgeless PFC (Power Factor Correction) mode to rectify the input AC power and generate DC power.

[0063] It should be noted that, through the circuit design of the DC-AC conversion branch 1121 and the AC-DC conversion branch 1122, the functions of a conventional inverter (DC-AC) and a rectifier (AC-DC) can be combined to better realize the bidirectional flow of electric energy.

[0064] In one embodiment, if Figure 6 As shown, the bidirectional inverter circuit 110 includes a first voltage conversion branch 1101 and a second voltage conversion branch 1102. The first voltage conversion branch 1101 is used to perform step-down conversion and direct-to-alternating current conversion on the direct current input from the DC interface 103, and output the result to the AC output interface 102. The second voltage conversion branch 1102 is used to perform step-down conversion and AC-to-DC conversion on the alternating current input from the AC input interface 101, and output the result to the DC interface 103.

[0065] It should be noted that the bidirectional inverter circuit 110 is divided into a first voltage conversion branch 1101 and a second voltage conversion branch 1102, wherein the first voltage conversion branch 1101 is responsible for converting DC power to AC power, and the second voltage conversion branch 1102 is responsible for converting AC power to DC power, thereby reducing the burden of a single voltage conversion branch and better controlling the quality of the output power, such as reducing harmonics and improving the power factor.

[0066] For example, Figure 5 and Figure 6 As shown, the first voltage conversion branch 1101 may include a DC-DC conversion circuit 111 and a direct-to-alternating current conversion branch 1121 connected in sequence. The second voltage conversion branch 1102 may include a DC-DC conversion circuit 111 and an alternating-to-direct current conversion branch 1122 connected in sequence.

[0067] In one embodiment, if Figure 7 As shown, the inverter 100 further includes a communication control circuit 114, which is configured to receive an external control signal and control the working state of the bidirectional inverter circuit 110 based on the control signal. The control signal may be a wireless signal or a wired signal.

[0068] For example, Figure 7 and Figure 8 As shown, the communication control circuit 114 is connected to the bidirectional inverter circuit 110, which includes at least a DC-DC converter circuit 111 and an AC-DC converter circuit 112. The communication control circuit 114 is connected to at least one of the DC-DC converter circuit 111 and the AC-DC converter circuit 112.

[0069] For example, Figure 7 and Figure 8 As shown, the bidirectional inverter circuit 110 includes at least a DC-DC converter circuit 111 and an AC-DC converter circuit 112. The communication control circuit 114 controls at least one of the DC-DC converter circuit 111 and the AC-DC converter circuit 112 according to a control signal.

[0070] In one embodiment, if Figure 9 As shown, the communication control circuit 114 includes a first communication module 1141 and a first control module 1142, and the first communication module 1141 is connected to the first control module 1142; the first communication module 1141 is used to receive an external input control signal and send the control signal to the first control module 1142; the first control module 1142 is used to generate corresponding control instructions according to the control signal, and the control instructions are used to control the bidirectional inverter circuit 110.

[0071] It should be noted that the first communication module 1141 and the first control module 1142 can be integrated. By controlling the bidirectional inverter circuit 110, it is possible to realize functions such as turning the inverter 100 on and off, controlling the inverter 100 to enter different operating modes, and controlling the output voltage, output power and other parameters of the inverter 100 in different operating modes.

[0072] In one embodiment, the DC-DC conversion circuit 111 and the AC-DC conversion circuit 112 include multiple switch units; the communication control circuit 114 is connected to the control terminals of the multiple switch units in the DC-DC conversion circuit 111 and the AC-DC conversion circuit 112 respectively.

[0073] For example, Figures 2 to 10 As shown, when the control signal includes a power-on instruction for the inverter 100, the communication control circuit 114 is used to control the DC-DC conversion circuit 111 and the AC-DC conversion circuit 112 to be in a conductive state according to the power-on instruction, so as to enable the DC-DC conversion circuit 111 and the AC-DC conversion circuit 112 to operate.

[0074] For example, Figures 2 to 10 As shown, when the control signal includes a shutdown instruction of the inverter 100, the communication control circuit 114 is used to control at least one switching unit in the DC-DC conversion circuit 111 and the AC-DC conversion circuit 112 to be in an off state according to the shutdown instruction, so that the DC-DC conversion circuit 111 and the AC-DC conversion circuit 112 stop working.

[0075] Exemplarily, the inverter 100 further includes a relay connected between the AC input interface 101, the AC output interface 102, and the AC-DC conversion circuit 112. The relay is used to control the circuit between the AC input interface 101, the AC output interface 102, and the AC-DC conversion circuit 112. When the wireless control signal includes a bypass instruction for the inverter 100, the communication control circuit 114 is used to control the relay to connect the circuit between the AC input interface 101 and the AC output interface 102, thereby enabling the AC power source 10 connected to the AC input interface 101 to power the DC power source 30 and / or the powered device 20.

[0076] In one embodiment, if Figure 7 and Figure 8 As shown, the inverter 100 further includes a communication control circuit 114 for sending parameter signals to the outside based on the device parameters of the inverter 100. The parameter signals can be sent to the outside via the communication control circuit 114, thereby enabling external monitoring of the device parameters of the inverter 100.

[0077] The parameter signal may carry device parameters of the inverter 100. The parameter signal may be a wireless signal or a wired signal.

[0078] In one embodiment, if Figure 9 As shown, the communication control circuit 114 includes a first communication module 1141 and a first control module 1142. The first control module 1142 is used to obtain the device parameters of the inverter 100; the first communication module 1141 is also used to generate corresponding parameter signals according to the device parameters of the inverter 100 and send the parameter signals to the outside.

[0079] The device parameters of the inverter 100 include at least one of the following: input voltage, output voltage, input power, output power, input current, output current, temperature, power on / off status, and power value.

[0080] In one embodiment, if Figure 11 As shown, the inverter 100 further includes an acquisition circuit 115, which is configured to acquire parameter information of the inverter 100 and send a signal to the communication control circuit 114 based on the acquired parameter information. The acquisition circuit 115 includes at least one of a voltage acquisition module, a power acquisition module, a current acquisition module, and a temperature acquisition module.

[0081] It should be noted that the voltage acquisition module is used to acquire the input voltage and output voltage of the inverter 100. The power acquisition module is used to acquire the input power and output power of the inverter 100. The current acquisition module is used to acquire the input current and output current of the inverter 100. The temperature acquisition module is used to acquire the temperature of the inverter 100. The installation location of the temperature acquisition module can be determined based on the temperature location to be acquired. The acquisition circuit 115 may also include other acquisition modules, such as a power acquisition module, which is used to acquire the power level of the built-in battery in the inverter 100.

[0082] In one embodiment, if Figure 12 As shown, the inverter 100 further includes a collection circuit 115. The bidirectional inverter circuit 110 includes at least a DC-DC conversion circuit 111 and an AC-DC conversion circuit 112. The collection circuit 115 is connected to the DC-DC conversion circuit 111 and the AC-DC conversion circuit 112 to obtain the electrical energy parameters of the DC-DC conversion circuit 111 and the AC-DC conversion circuit 112.

[0083] It should be noted that the acquisition circuit 115 may be an operational amplifier processing circuit that amplifies signals such as line voltage and current, and also includes impedance transformation to reduce load-pull effects.

[0084] Among them, the communication control circuit 114 is also connected to the acquisition circuit 115, and is used to generate device parameters of the inverter 100 based on the power parameters of the DC-DC conversion circuit 111 and the AC-DC conversion circuit 112; the communication control circuit 114 is also used to send parameter signals to the outside based on the device parameters of the inverter 100.

[0085] It should be noted that the communication control circuit 114 includes at least one of a wireless communication module or a wired communication module, wherein the wireless communication module includes at least one of a Bluetooth module, an NB-IoT module, a 4G module, a 5G module, an infrared module, a WIFI module, a radio frequency identification module or a ZigBee module.

[0086] In one embodiment, if Figure 13 As shown, the communication control circuit 114 is used to communicate with the control device 200, which includes at least one of a mobile terminal, a remote controller, or a server. The control device 200 enables external communication and control of the inverter 100, thereby enabling remote control of the inverter 100. The user can achieve convenient control of the inverter 100 without having to touch the inverter 100 itself.

[0087] The inverter 100 provided in the above embodiment includes an AC input interface 101, an AC output interface 102, a DC interface 103, and a bidirectional inverter circuit 110. The AC input interface 101 is used to connect to an external AC power source 10 to input AC power. The AC output interface 102 is used to connect to an external power-consuming device 20 to output AC power to the power-consuming device 20. The DC interface 103 is used to connect to an external DC power source 30 to input or output DC power to or from the DC power source 30. The bidirectional inverter circuit 110 is used to convert AC power input from the AC input interface 101 into DC power and output DC power to the DC interface 103. It is also used to convert DC power input from the DC interface 103 into AC power and output AC power to the AC output interface 102. The inverter 100 provided in the embodiment of the present application can realize bidirectional voltage conversion between the AC power supply 10 and the DC power supply 30. Through the inverter 100, not only can the AC power supply 10 such as the mains be used to charge the DC power supply 30 such as the vehicle power supply, but the DC power supply 30 such as the vehicle power supply can also be used to power the electrical equipment 20, thereby greatly improving the versatility and flexibility of the inverter 100.

[0088] See also Figure 14 , Figure 14 A schematic block diagram of a control device provided in an embodiment of the present application.

[0089] like Figure 14As shown, the control device 400 includes a second display module 410 , a second touch module 420 and a second communication module 430 . The control device 400 is used to control the inverter 300 .

[0090] The second display module 410 is used to display the operating status or device parameters of the inverter 300. The second touch module 420 is used to receive manual control from the user to generate control signals for the inverter 300. The second communication module 430 is used to send control signals to the inverter 300 and also to receive the operating status or device parameters of the inverter 300. The inverter 440 can be the inverter 300 described in the above-mentioned embodiments of the present application.

[0091] In one embodiment, the control device 400 is wirelessly connected to the inverter 300, and the second communication module includes a wireless communication module; the wireless communication module includes at least one of a Bluetooth module, an NB-IoT module, a 4G module, a 5G module, an infrared module, a WIFI module, a radio frequency identification module or a ZigBee module.

[0092] Those skilled in the art will understand that Figure 14 The structure shown in the figure is merely a block diagram of a portion of the structure related to the solution of the present application, and does not constitute a limitation on the control device 400 to which the solution of the present application is applied. The specific control device 400 may include more or fewer components than shown in the figure, or combine certain components, or have a different component arrangement.

[0093] It should be noted that those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the control device 400 described above can refer to the corresponding process in the aforementioned inverter embodiment, and will not be repeated here.

[0094] See also Figure 15 , Figure 15 A schematic block diagram of the structure of a control system provided in an embodiment of the present application.

[0095] like Figure 15 As shown, the control system 500 includes an inverter 510 and a control device 520 . The inverter 510 is wirelessly connected to the control device 520 , and the control device 520 is used to control the inverter 510 .

[0096] In some embodiments, the inverter 510 may be the inverter 100 in the aforementioned embodiment. The control device 520 may be the control device 400 in the aforementioned embodiment.

[0097] It should be noted that those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the control system 500 described above can refer to the corresponding process in the aforementioned inverter embodiment, and will not be repeated here.

[0098] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. An inverter, characterized in that: include: AC input interface, used to connect to an external AC power source to input AC power; AC output interface, used for connecting to external power-consuming equipment to output alternating current to the power-consuming equipment; A DC interface, used for connecting to an external DC power supply to input or output DC power to the DC power supply; The bidirectional inverter circuit is used to convert the alternating current input by the AC input interface into direct current and output the direct current to the DC interface, and also to convert the direct current input by the DC interface into alternating current and output the alternating current to the AC output interface.

2. The inverter according to claim 1, characterized in that The AC input interface includes a mains input interface, and the AC power supply includes a mains power supply; And / or, the DC interface includes a vehicle power connection port, the DC power supply includes a vehicle power supply, and the vehicle power supply includes at least one of a lithium battery, a sodium battery, a lead-acid battery or a supercapacitor.

3. The inverter according to claim 2, characterized in that: The vehicle power supply includes a start-stop power supply, and the DC interface is used to output a set DC power for charging the start-stop power supply, and the set DC power includes at least one of 12V DC, 24V DC or 48V DC.

4. The inverter according to claim 1, characterized in that The DC interface includes a positive electrode connection piece and a negative electrode connection piece, wherein the positive electrode connection piece is used to connect to the positive terminal of the DC power supply, and the negative electrode connection piece is used to connect to the negative terminal of the DC power supply.

5. The inverter according to claim 1, characterized in that: The bidirectional inverter circuit is connected to the AC input interface, the AC output interface and the DC interface.

6. The inverter according to claim 1, characterized in that The bidirectional inverter circuit includes a DC-DC conversion circuit and an AC-DC conversion circuit, wherein: The DC-DC conversion circuit is used to perform voltage boost conversion on the direct current input by the DC interface; The AC / DC conversion circuit is used to convert the DC power flowing through it into AC power and output it to the AC output interface.

7. The inverter according to claim 6, characterized in that: The AC / DC conversion circuit is further used to convert the alternating current inputted by the AC input interface into direct current; The DC-DC conversion circuit is further used to perform voltage reduction conversion on the DC power flowing through it and output it to the DC interface.

8. The inverter according to claim 6 or 7, characterized in that: The DC-DC conversion circuit is used to connect to the DC interface; The DC-DC conversion circuit is also connected to the AC-DC conversion circuit, and the AC-DC conversion circuit is also connected to the AC input interface and the AC output interface.

9. The inverter according to claim 1, characterized in that: The inverter further includes a communication control circuit configured to receive an external control signal and control an operating state of the bidirectional inverter circuit based on the control signal.

10. The inverter according to claim 9, characterized in that: The communication control circuit is connected to the bidirectional inverter circuit, which includes at least a DC-DC conversion circuit and an AC-DC conversion circuit. The communication control circuit is connected to at least one of the DC-DC conversion circuit and the AC-DC conversion circuit.

11. The inverter according to claim 9, characterized in that: The bidirectional inverter circuit includes at least a DC-DC conversion circuit and an AC-DC conversion circuit, and the communication control circuit controls at least one of the DC-DC conversion circuit and the AC-DC conversion circuit according to the control signal.

12. The inverter according to claim 9, characterized in that The communication control circuit includes a first communication module and a first control module, wherein the first communication module is connected to the first control module; The first communication module is used to receive an external input control signal and send the control signal to the first control module; The first control module is used to generate corresponding control instructions according to the control signal, and the control instructions are used to control the bidirectional inverter circuit.

13. The inverter according to claim 6, characterized in that The DC-DC conversion circuit and the AC-DC conversion circuit include multiple switch units; the communication control circuit is respectively connected to the control ends of the multiple switch units in the DC-DC conversion circuit and the AC-DC conversion circuit.

14. The inverter according to claim 13, characterized in that: When the control signal includes a power-on instruction for the inverter, the communication control circuit is configured to control the DC-DC conversion circuit and the plurality of switch units in the AC-DC conversion circuit to be in a conducting state according to the power-on instruction, so as to enable the DC-DC conversion circuit and the AC-DC conversion circuit to operate; And / or, when the control signal includes a shutdown instruction of the inverter, the communication control circuit is used to control at least one switching unit in the DC-DC conversion circuit and the AC-DC conversion circuit to be in an off state according to the shutdown instruction, so that the DC-DC conversion circuit and the AC-DC conversion circuit stop working.

15. The inverter according to claim 1, characterized in that The inverter further includes a communication control circuit configured to send a parameter signal to the outside based on the device parameters of the inverter.

16. The inverter according to claim 15, characterized in that The communication control circuit includes a first communication module and a first control module. The first control module is used to obtain the device parameters of the inverter; the first communication module is also used to generate corresponding parameter signals according to the device parameters of the inverter and send the parameter signals to the outside.

17. The inverter according to claim 15, characterized in that The device parameters of the inverter include at least one of the following: input voltage, output voltage, input power, output power, input current, output current, temperature, power on / off status, and power value.

18. The inverter according to claim 15, characterized in that The inverter further includes an acquisition circuit for acquiring parameter information of the inverter and sending a signal to the communication control circuit based on the acquired parameter information. The acquisition circuit includes at least one of a voltage acquisition module, a power acquisition module, a current acquisition module, and a temperature acquisition module.

19. The inverter according to claim 15, characterized in that The inverter further includes a collection circuit, the bidirectional inverter circuit includes at least a DC-DC conversion circuit and an AC-DC conversion circuit, the collection circuit is connected to the DC-DC conversion circuit and the AC-DC conversion circuit, and is used to obtain the electric energy parameters of the DC-DC conversion circuit and the AC-DC conversion circuit; The communication control circuit is also connected to the acquisition circuit, and is used to generate the device parameters of the inverter based on the power parameters of the DC-DC conversion circuit and the AC-DC conversion circuit; the communication control circuit is also used to send the parameter signal to the outside based on the device parameters of the inverter.

20. The inverter according to any one of claims 9 to 19, characterized in that: The communication control circuit includes at least one of a wireless communication module or a wired communication module, wherein the wireless communication module includes at least one of a Bluetooth module, an NB-IoT module, a 4G module, a 5G module, an infrared module, a WIFI module, a radio frequency identification module or a ZigBee module.

21. The inverter according to any one of claims 9 to 20, characterized in that: The communication control circuit is used to communicate with a control device, and the control device includes at least one of a mobile terminal, a remote controller or a server.

22. The inverter according to any one of claims 1 to 21, characterized in that: The device further comprises a housing, wherein the AC input interface, the AC output interface and the DC interface are provided in the housing, and the bidirectional inverter circuit is provided in the housing; The inverter further includes at least one of the following modules: A first display module, configured to display the operating status or device parameters of the inverter; The first touch control module is used to receive manual control of the user to generate an on / off control signal for the inverter. The first touch control module is provided in the housing and includes at least one of a key, a button, a touch screen or a toggle switch.

23. A control device, characterized in that: Used to control the inverter according to any one of claims 1 to 22, the control device comprises: A second display module is used to display the working status or device parameters of the inverter; a second touch control module, configured to receive a user's manual control to generate a control signal for the inverter; The second communication module is used to send the control signal to the inverter and receive the working status or device parameters of the inverter.

24. The control device according to claim 23, characterized in that The control device is wirelessly connected to the inverter, and the second communication module includes a wireless communication module; the wireless communication module includes at least one of a Bluetooth module, an NB-IoT module, a 4G module, a 5G module, an infrared module, a WIFI module, a radio frequency identification module or a ZigBee module.

25. A control system, characterized in that: The control system comprises the inverter according to any one of claims 1 to 22, and the control device according to any one of claims 23 to 24; wherein the control device is used to control the inverter.

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