An intelligent monitoring and regulating charging inverter and RV

Abstract

The present application discloses a charging inverter integrated machine and a motorhome with intelligent monitoring and regulation, and relates to the field of motorhome design. Among them, the first target sensor group is arranged at the corresponding load, the first end of the first conversion circuit is connected to the first target sensor group, the second end of the first conversion circuit and the first end of the first port expander are connected to the first end of the control circuit, the first end of the first switch is connected to the second end of the first port expander, and the control end of the load is connected to the second end of the first switch; the inverter is connected to the second end of the control circuit, and the battery is connected to the third end of the control circuit; it can be seen that the present application obtains the load operation parameters on the corresponding load through its own first target sensor group, and the control circuit obtains multiple load operation parameters for evaluation and analysis, monitors and adjusts the load in real time according to the load operation data, so as to achieve the purpose of dynamic adjustment and flexible adjustment of the charging inverter integrated machine with intelligent monitoring and regulation, and realize optimized energy distribution.

Description

Technical Field

[0001] The present application relates to the field of RV design, and in particular to an integrated charging inverter and RV with intelligent monitoring and regulation. Background Art

[0002] With the popularity of RV travel and outdoor lifestyle, users have a growing demand for efficient and intelligent power management systems. For RV travel, the usual integrated charging and inverter technology is used to achieve the conversion of power in the RV. However, in actual applications, there are many and complex electrical appliances in the RV. Users can only know the remaining power in the RV under the current circumstances, but cannot grasp the input and output power, charging status, and load conditions of each electrical appliance of the RV battery. In this case, when the power in the RV is low, users cannot intelligently adjust the power supply strategy according to the battery capacity, temperature, and charging status factors to protect the battery life and ensure stable power supply, which in turn affects the safe operation of the entire RV power system.

[0003] In view of the above technologies, seeking an integrated charging inverter with intelligent monitoring and regulation is an urgent problem to be solved by technical personnel in this field. Summary of the invention

[0004] The purpose of this application is to provide a charging inverter and RV with intelligent monitoring and regulation, which can solve the problem in the prior art that the RV cannot realize intelligent regulation of its own power supply strategy, thereby affecting the battery life and the RV power system.

[0005] In order to solve the above technical problems, the present application provides a charging inverter integrated machine with intelligent monitoring and regulation, including a control circuit, a battery, an inverter, a first target sensor group, a first conversion circuit, a first port expander and a first switch; the number of the first target sensor group, the first conversion circuit, the first port expander and the first switch is at least one;

[0006] Wherein, the first target sensor group is arranged at the corresponding load, and is used to obtain the load operation parameters of the load;

[0007] The first end of the first conversion circuit is connected to the first target sensor group, the second end of the first conversion circuit and the first end of the first port expander are connected to the first end of the control circuit, the first end of the first switch is connected to the second end of the first port expander, and the control end of the load is connected to the second end of the first switch; the inverter is connected to the second end of the control circuit, and is used to convert the DC power in the intelligent monitoring and regulating charging inverter into AC power; the battery is connected to the third end of the control circuit; the first conversion circuit converts the load operating parameters so that the control circuit sends a first switch instruction determined according to the processed load operating parameters to the first port expander, the first port expander controls the conduction or shutdown of the first switch according to the first switch instruction, and the load determines the connection state between the load and the battery according to the state of the first switch.

[0008] Preferably, it further comprises: a charging regulation circuit; wherein the charging regulation circuit comprises: a second target sensor group, a second port expander, a second switch, a second conversion circuit and a modulation circuit; the number of the second target sensor group, the second port expander, the second switch, the second conversion circuit and the modulation circuit is at least one;

[0009] Wherein, the second target sensor group is arranged at the charging circuit, and is used to obtain the charging operation parameters of the charging circuit;

[0010] The first end of the second conversion circuit is connected to the second target sensor group, the second end of the second conversion circuit, the first end of the second port expander and the first end of the modulation circuit are connected to the fourth end of the control circuit, the first end of the second switch is connected to the second end of the second port expander, the second end of the second switch is connected to the first control end of the charging circuit, and the second end of the modulation circuit is connected to the second control end of the charging circuit; the second conversion circuit converts the charging operation parameters so that the control circuit sends a second switch instruction determined according to the processed charging operation parameters to the second port expander, and sends a modulation instruction determined according to the processed charging operation parameters to the modulation circuit; the second port expander controls the conduction or disconnection of the second switch according to the second switch instruction; the charging circuit adjusts the connectivity between the charging circuit and the battery according to the state of the second switch and the modulation instruction.

[0011] Preferably, the first target sensor group includes:

[0012] A first voltage sensor, wherein an input terminal of the first voltage sensor is connected to the load and is used to obtain a load voltage parameter in the load operation parameter;

[0013] A first current sensor, wherein an input end of the first current sensor is connected to the load and is used to obtain a load current parameter in the load operation parameter;

[0014] A first temperature sensor, the first temperature sensor is arranged at the load, and is used to obtain a load temperature parameter in the load operation parameter;

[0015] The second target sensor group includes:

[0016] A second voltage sensor, wherein an input end of the second voltage sensor is connected to an output end of the charging circuit, and is used to obtain a charging voltage parameter in the charging operation parameter;

[0017] A second current sensor, wherein an input end of the second current sensor is connected to an output end of the charging circuit, and is used to obtain a charging current parameter in the charging operation parameter;

[0018] The second temperature sensor is arranged at the charging circuit and is used to obtain the charging temperature parameter in the charging operation parameter.

[0019] Preferably, the first conversion circuit is a first analog-to-digital conversion detection circuit;

[0020] The input end of the first analog-to-digital conversion detection circuit is connected to the first target sensor group as the first end of the first conversion circuit, and the output end of the first analog-to-digital conversion detection circuit is connected to the first end of the control circuit as the second end of the first conversion circuit;

[0021] The second conversion circuit is a second analog-to-digital conversion detection circuit;

[0022] The input end of the second analog-to-digital conversion detection circuit is connected to the second target sensor group as the first end of the second conversion circuit, and the output end of the second analog-to-digital conversion detection circuit is connected to the fourth end of the control circuit as the second end of the second conversion circuit.

[0023] Preferably, the first switch is a first relay;

[0024] The input end of the first relay is connected to the second end of the first port expander as the first end of the first switch, and the output end of the first relay is connected to the control end of the load as the second end of the first switch;

[0025] The second switch is a second relay;

[0026] The input end of the second relay is connected to the second end of the second port expander as the first end of the second switch, and the output end of the second relay is connected to the first control end of the charging circuit as the second end of the second switch.

[0027] Preferably, the modulation circuit is a pulse modulation circuit;

[0028] The input end of the pulse modulation circuit is connected to the fourth end of the control circuit as the first end of the modulation circuit, and the output end of the pulse modulation circuit is connected to the second control end of the charging circuit as the second end of the modulation circuit.

[0029] Preferably, it also includes: a first communication circuit;

[0030] Wherein, a first end of the first communication circuit is connected to the inverter, and a second end of the first communication circuit is connected to a second end of the control circuit.

[0031] Preferably, it also includes: a second communication circuit;

[0032] The first end of the second communication circuit is connected to the fifth end of the control circuit, and the second end of the second communication circuit is connected to the smart device.

[0033] Preferably, it also includes: a third communication circuit and a detection circuit;

[0034] The first end of the third communication circuit is connected to the third end of the control circuit and the first end of the detection circuit, and the second end of the third communication circuit is connected to the second end of the detection circuit and the battery.

[0035] On the other hand, the present application also provides a motorhome, including the above-mentioned charging inverter integrated machine with intelligent monitoring and regulation.

[0036] The present application provides an intelligent monitoring and regulating charging inverter integrated machine, comprising a control circuit, a battery, an inverter, a first target sensor group, a first conversion circuit, a first port expander and a first switch; the number of the first target sensor group, the first conversion circuit, the first port expander and the first switch is at least one; wherein the first target sensor group is arranged at the corresponding load, and is used to obtain the load operation parameters of the load; the first end of the first conversion circuit is connected to the first target sensor group, the second end of the first conversion circuit and the first end of the first port expander are connected to the first end of the control circuit, the first end of the first switch is connected to the second end of the first port expander, and the control end of the load is connected to the second end of the first switch; the inverter is connected to the second end of the control circuit, and is used to convert the direct current in the intelligent monitoring and regulating charging inverter integrated machine into alternating current; the battery is connected to the third end of the control circuit; the first conversion circuit converts the load operation parameters so that the control circuit sends a first switch instruction determined according to the processed load operation parameters to the first port expander, the first port expander controls the conduction or disconnection of the first switch according to the first switch instruction, and the load determines the connection state between the load and the battery according to the state of the first switch. It can be seen that the intelligent monitoring and regulating charging inverter in the present application obtains the load operating parameters on the corresponding load through its own first target sensor group, and the control circuit obtains multiple load operating parameters for evaluation and analysis, monitors the load condition in real time according to the load operating data, and determines the current corresponding first opening and closing instructions according to the load condition and the current battery status, so that the load determines the connectivity status between the load and the battery according to the status of the switch, thereby achieving the purpose of dynamic adjustment and flexible adjustment of the intelligent monitoring and regulating charging inverter, and realizing optimized energy distribution. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0038] Figure 1 A schematic diagram of a charging inverter integrated machine with intelligent monitoring and regulation provided in an embodiment of the present application;

[0039] Figure 2 A complete schematic diagram of a charging inverter integrated machine with intelligent monitoring and regulation provided in an embodiment of the present application;

[0040] Figure 3 A first circuit diagram provided for an embodiment of the present application;

[0041] Figure 4 A second circuit diagram provided in an embodiment of the present application;

[0042] Figure 5 A third circuit diagram provided for an embodiment of the present application;

[0043] Figure 6 A fourth circuit diagram provided for an embodiment of the present application;

[0044] Figure 7 A fifth circuit diagram provided in an embodiment of the present application;

[0045] Figure 8 A startup operation flow chart provided for an embodiment of the present application;

[0046] Fig. 9 A data analysis flow chart provided for an embodiment of the present application. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0048] The core of this application is to provide a charging inverter and RV with intelligent monitoring and regulation.

[0049] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0050] Figure 1 A schematic diagram of an intelligent monitoring and regulating charging inverter integrated machine provided in an embodiment of the present application, as shown in the figure, includes a control circuit 1, a battery 2, an inverter 3, a first group of target sensors 4, a first conversion circuit 5, a first port expander 6 and a first switch 7. In addition, Figure 1 The load 8 is also included. The first group of target sensors 4, the first conversion circuit 5, the first port expander 6, the first switch 7 and the load 8 are at least one in number and correspond one to one ( Figure 1 Take an example). The connection relationship of the structure is as follows: the first target sensor group 4 is arranged at the corresponding load 8, the first end of the first conversion circuit 5 is connected to the first target sensor group 4, the second end of the first conversion circuit 5 and the first end of the first port expander 6 are connected to the first end of the control circuit 1, the first end of the first switch 7 is connected to the second end of the first port expander 6, the control end of the load 8 is connected to the second end of the first switch 7; the inverter 3 is connected to the second end of the control circuit 1; the battery 2 is connected to the third end of the control circuit 1.

[0051] In a specific embodiment, the first target sensor group 4 of the charging inverter integrated machine with intelligent monitoring and regulation is set at the load 8 to obtain the current load operating parameters of the load 8, such as load temperature parameters, load current parameters, load voltage parameters, etc. Among them, the first target sensor group 4 may include a first voltage sensor, a first current sensor and a first temperature sensor. The input end of the first voltage sensor is connected to the load 8 to obtain the load voltage parameter in the load operating parameters; the input end of the first current sensor is connected to the load 8 to obtain the load current parameter in the load operating parameters; the first temperature sensor is set at the load 8 to obtain the load temperature parameter in the load operating parameters. The first target sensor group 4 transmits the acquired load operating parameters to the first conversion circuit 5, and the first conversion circuit 5 performs analog-to-digital conversion on the load operating parameters to meet the data format requirements of the control circuit 1 for the load operating parameters. Among them, the first conversion circuit 5 can be a first analog-to-digital conversion detection circuit, the input end of the first analog-to-digital conversion detection circuit is connected to the first target sensor group 4 as the first end of the first conversion circuit 5, and the output end of the first analog-to-digital conversion detection circuit is connected to the first end of the control circuit 1 as the second end of the first conversion circuit 5. At this time, the control circuit 1 obtains the load operation parameters of the corresponding multiple loads 8 transmitted by the multi-channel first conversion circuit 5. At the same time, the control circuit 1 also monitors the status of the battery 2. Therefore, the control circuit 1 obtains the voltage and current data of the battery 2 through the connection relationship, and uses the calculation function of the control chip in its own circuit to accurately calculate the power of the battery 2 using the ampere-hour method. The control circuit 1 obtains the load operation parameters and determines the real-time power of the load 8 (the power of the DC load and the power of the AC load) through the connection relationship, and then accurately evaluates the state of the battery 2 and predicts the remaining battery life according to the real-time power data under the calculation function of its own control chip. In the whole process, since the control circuit 1 also obtains the load operation data of the load 8, it can determine which loads 8 will cause the overall load to exceed the standard or exceed the discharge output capacity of the current battery under the calculation function of its own control chip. Therefore, the control circuit 1 will send the corresponding first switch instruction to the first port expander 6. When the instruction is off, it means that the current load 8 will not cause the load to exceed the standard, and the corresponding load 8 is used normally; when the instruction is on, it means that the current load 8 causes the load to exceed the standard, and the intelligent monitoring and regulating charging inverter integrated machine disconnects the channel of the current load 8. Therefore, in general, the intelligent monitoring and regulating charging inverter integrated machine provided in this application can flexibly adjust the output power and optimize energy distribution according to load changes and battery health conditions.

[0052] The control circuit 1 is a conventional control circuit, which is provided with a control chip inside. The corresponding calculation function can be realized as long as the calculation program is preset in the control chip.

[0053] Among them, it should be noted that, as a preference, the first switch 7 provided in the present application can be a first relay. When the first switch 7 is a first relay, its connection relationship is: the input end of the first relay is connected to the second end of the first port expander 6 as the first end of the first switch 7, and the output end of the first relay is connected to the control end of the load 8 as the second end of the first switch 7.

[0054] It should also be noted that the type of the first target sensor group 4, the type of the first conversion circuit 5 and the type of the first switch 7 provided in the embodiment of the present application are all possible implementation methods, but are not limited to only this implementation method and can be set according to user needs.

[0055] The present application provides an intelligent monitoring and regulating charging inverter integrated machine, comprising a control circuit, a battery, an inverter, a first target sensor group, a first conversion circuit, a first port expander and a first switch; the number of the first target sensor group, the first conversion circuit, the first port expander and the first switch is at least one; wherein the first target sensor group is arranged at the corresponding load, and is used to obtain the load operation parameters of the load; the first end of the first conversion circuit is connected to the first target sensor group, the second end of the first conversion circuit and the first end of the first port expander are connected to the first end of the control circuit, the first end of the first switch is connected to the second end of the first port expander, and the control end of the load is connected to the second end of the first switch; the inverter is connected to the second end of the control circuit, and is used to convert the direct current in the intelligent monitoring and regulating charging inverter integrated machine into alternating current; the battery is connected to the third end of the control circuit; the first conversion circuit converts the load operation parameters so that the control circuit sends a first switch instruction determined according to the processed load operation parameters to the first port expander, the first port expander controls the conduction or disconnection of the first switch according to the first switch instruction, and the load determines the connection state between the load and the battery according to the state of the first switch. It can be seen that the charging inverter integrated machine with intelligent monitoring and regulation in the present application obtains the load operating parameters on the corresponding load through its own first target sensor group, and the control circuit obtains multiple load operating parameters for evaluation and analysis, monitors the load condition in real time according to the load operating data, and determines the current corresponding first switch instruction according to the load condition and the current battery status, so that the load determines the connectivity status between the load and the battery according to the status of the switch, thereby achieving the purpose of dynamic adjustment and flexible adjustment of the charging inverter integrated machine with intelligent monitoring and regulation, and realizing optimized energy distribution.

[0056] Based on the above embodiments, Figure 2As shown, the charging inverter integrated machine with intelligent monitoring and regulation also includes: a charging regulation circuit; wherein the charging regulation circuit includes: a second target sensor group 9, a second port expander 12, a second switch 13, a second conversion circuit 10 and a modulation circuit 11, and in addition, a charging circuit 14 is also included; wherein the number of the second target sensor group 9, the second port expander 12, the second switch 13, the second conversion circuit 10 and the modulation circuit 11 is at least one, and they correspond one to one ( Figure 2 Take an example). The connection relationship of the specific structure is as follows: the second target sensor group 9 is arranged at the charging circuit 14, and is used to obtain the charging operation parameters of the charging circuit 14; the first end of the second conversion circuit 10 is connected to the second target sensor group 9, the second end of the second conversion circuit 10, the first end of the second port expander 12 and the first end of the modulation circuit 11 are connected to the fourth end of the control circuit 1, the first end of the second switch 13 is connected to the second end of the second port expander 12, the second end of the second switch 13 is connected to the first control end of the charging circuit 14, and the second end of the modulation circuit 11 is connected to the second control end of the charging circuit 14; the second conversion circuit 10 converts the charging operation parameters, so that the control circuit 1 sends the second switch instruction determined according to the processed charging operation parameters to the second port expander 12, and sends the modulation instruction determined according to the processed charging operation parameters to the modulation circuit 11; the second port expander 12 controls the conduction or disconnection of the second switch 13 according to the second switch instruction; the charging circuit 14 adjusts the connection state between the charging circuit 14 and the battery 2 according to the state of the second switch 13 and the modulation instruction.

[0057] In a specific embodiment, the plurality of charging circuits 14 refer to charging circuits corresponding to different charging modes (for example, mains charging, wind power generation, photovoltaic power generation, and vehicle power generation). Each charging circuit 14 corresponds to a second target sensor group 9, a second port expander 12, a second switch 13, a second conversion circuit 10, and a modulation circuit 11. Among them, the second target sensor group 9 obtains the charging operation parameters of the corresponding charging circuit 14 (for example, charging voltage parameters, charging current parameters, and charging temperature parameters, as well as the charging power generation power finally determined). The charging operation parameters are converted into analog to digital through the second conversion circuit 10 to meet the data format requirements of the control circuit 1 for the charging operation parameters. The control circuit 1 obtains the charging operation parameters of the multi-channel transmission, and analyzes and summarizes them to obtain a charging scheme that is most suitable for the current state (for example, selecting two charging circuits 14 from multiple charging circuits 14 to charge the battery 2, or reducing the high-power charging in the multiple charging circuits 14 to low-power charging), that is, sending a second switch instruction to the second port expander 12, and sending a modulation instruction to the modulation circuit 11; wherein the second switch instruction is used to indicate whether the charging circuit 14 is connected to the battery 2, and the modulation instruction is used to indicate the charging power of the current charging circuit 14 to the battery 2.

[0058] In the embodiment of the present application, some of the charging circuits 14 (chargers) of each circuit can control its output power through modulation instructions, while some cannot be controlled through instructions and need to add an additional current limiting control circuit to control the current through the second switch 13. Therefore, when the multiple circuits provided by the present application charge the battery 2 at the same time, the charging power of each circuit can be dynamically adjusted, so that the charging inverter integrated machine with intelligent monitoring and adjustment can charge the battery 2 more flexibly and conveniently, and is suitable for various complex charging scenarios.

[0059] Among them, as a preference, the second target sensor 9 includes: a second voltage sensor, a second current sensor and a second temperature sensor, wherein the input end of the second voltage sensor is connected to the output end of the charging circuit 14, for obtaining the charging voltage parameters in the charging operation parameters; the input end of the second current sensor is connected to the output end of the charging circuit 14, for obtaining the charging current parameters in the charging operation parameters; the second temperature sensor is arranged at the charging circuit 14, for obtaining the charging temperature parameters in the charging operation parameters.

[0060] Among them, as a preferred embodiment, the second conversion circuit 10 is a second analog-to-digital conversion detection circuit; the input end of the second analog-to-digital conversion detection circuit is connected to the second target sensor group 9 as the first end of the second conversion circuit 10, and the output end of the second analog-to-digital conversion detection circuit is connected to the first end of the control circuit 1 as the second end of the second conversion circuit 10; the second switch 13 is a second relay, the input end of the second relay is connected to the second end of the second port expander 12 as the first end of the second switch 13, and the output end of the second relay is connected to the first control end of the charging circuit 14 as the second end of the second switch 13. The modulation circuit 11 is a pulse modulation circuit; the input end of the pulse modulation circuit is connected to the first end of the control circuit 1 as the first end of the modulation circuit 11, and the output end of the pulse modulation circuit is connected to the second control end of the charging circuit 14 as the second end of the modulation circuit 11.

[0061] It should be noted that the type of the second target sensor group 9, the type of the second conversion circuit 10, the type of the second switch 13 and the type of the modulation circuit 11 provided in the embodiment of the present application is only one possible implementation method, but is not limited to only this implementation method and can be set according to the needs of the user.

[0062] The intelligent monitoring and regulating charging inverter provided in the present application can not only achieve the purpose of intelligent dynamic adjustment and flexible adjustment to realize optimized energy distribution, but also obtain the charging operation parameters of the charging circuit through the second target sensor group, and then analyze and judge the charging operation parameters through the control circuit to obtain the corresponding second switching instructions and modulation instructions, and control the maximum charging power of each charging circuit according to the second switching instructions and modulation instructions, so as to ensure that the total charging power of the RV energy storage battery is within a safe range and improve the user experience.

[0063] Based on the above embodiments, as a preferred embodiment, Figure 2 As shown, it also includes: a first communication circuit 15, a second communication circuit 16, a third communication circuit 17 and a detection circuit 18.

[0064] The first end of the first communication circuit 15 is connected to the inverter 3, and the second end of the first communication circuit 15 is connected to the second end of the control circuit 1. Preferably, the first communication circuit 15 is a communication circuit that complies with the 485 communication protocol. The first communication circuit 15 serves as a communication channel between the inverter 3 and the control circuit 1 for transmitting data.

[0065] The first end of the second communication circuit 16 is connected to the fifth end of the control circuit 1, and the second end of the second communication circuit 16 is connected to the smart device. Preferably, the second communication circuit 16 is a wireless communication circuit. The data acquired in the control circuit 1 can be sent to the smart device by wireless communication through the second communication circuit 16, and the real-time status of the current charging and reverse integrated machine is displayed on the display screen of the smart device, such as battery voltage, current, power, predicted remaining battery life, and the real-time power of each load 8 at present; and there are options for threshold alarm and priority load management in the display interface. Part of the data in the real-time status currently displayed is calculated based on the main control chip in the control circuit 1. Therefore, when it is used to modify some of its parameters through priority load management, the calculation of the main control chip is transformed, and the real-time status of the current charging and reverse integrated machine obtained at this time is the status after the parameters are modified. It should be noted that when some parameters in the real-time status are abnormal, the user is warned through the threshold alarm.

[0066] The first end of the third communication circuit 17 is connected to the third end of the control circuit 1 and the first end of the detection circuit 18, and the second end of the third communication circuit 17 is connected to the second end of the detection circuit 18 and the battery 2. As a preferred embodiment, the third communication circuit 17 is a communication circuit that complies with the CAN protocol.

[0067] Among them, as a preferred embodiment, Figure 3 , Figure 4 , Figure 5, Figure 6 and Figure 7 As shown. Among them, Figure 3 A first circuit diagram provided in an embodiment of the present application, Figure 4 A second circuit diagram provided in an embodiment of the present application, Figure 5 A third circuit diagram provided in an embodiment of the present application, Figure 3 , Figure 4 and Figure 5 Corresponding to the first communication circuit 15; Figure 6 A fourth circuit diagram provided in an embodiment of the present application, Figure 6 Corresponding detection circuit 18; Figure 7 A fifth circuit diagram provided in an embodiment of the present application, Figure 7 Corresponding control circuit 1.

[0068] When the first communication circuit 15 is a communication circuit that complies with the communication protocol 485, Figure 3 It includes chip U507, resistors R1 and R2, capacitors C1 and C2. Figure 4 Includes chip E502, resistors R3 and R4. Figure 5It includes chip J504, driving T26, T27 and T28. Among them, the first pin of chip U507 is connected to the first voltage terminal VDD-3.3V and the first end of capacitor C1 as the first voltage input terminal; the third pin of chip U507 is connected to the first end of resistor R1; the second end of resistor R1 is connected to the signal output end of the main control chip in the control circuit 1 as the chip signal receiving end UART3-RX; the fourth pin and the fifth pin of chip U507 are connected; the sixth pin of chip U507 is connected to the first end of resistor R2; the second end of resistor R2 is connected to the signal input end of the main control chip in the control circuit 1 as the chip signal output end UART3-TX; the twelfth pin of chip U507 is connected to the first end of resistor R4 and the first pin RS485_4-A1 of chip E502; the second end of resistor R4 is connected to the third pin RS485_4-A2 of chip J504; the thirteenth pin of chip U507 is connected to the The first end of resistor R3 is connected to the second pin RS485_4-B1 of chip E502; the second end of resistor R3 is connected to the fourth pin RS485_4-B2 of chip J504; the sixteenth pin of chip U507 is connected to the second voltage terminal +5V-A and the first end of capacitor C2 as the second voltage input terminal; the second pin, the seventh pin, the eighth pin, the ninth pin, the tenth pin, the fifteenth pin of chip U507 and the second end of capacitor C1 and the second end of capacitor C2 are grounded; the fourth pin, the fifth pin, the eleventh pin and the fourteenth pin of chip U507 are functional pins; the third pin of chip E502 is grounded; the first pin of chip J504 is an empty pin, the second pin of chip J504 is connected to driver T26 and grounded; the third pin of chip J504 is also connected to driver T27; the fourth pin of chip J504 is also connected to driver T28.

[0069] As a preferred embodiment, the model of chip J504 may be: CON_XHB_2.54_LZ_4P, wherein J504 is specifically a 4P terminal seat with an XHB_2.54 spacing, which is connected to an external battery through a 4P terminal line to collect battery power data.

[0070] Among them, it should be noted that Figure 3 , Figure 4 and Figure 5 Combined as a partial circuit in the specific circuit of the first communication circuit 15 , the circuit described in this application embodies the connection between the first communication circuit 15 and the control circuit 1 .

[0071] Figure 6The corresponding detection circuit 18 includes: a rectifier bridge D202, a transistor output optical coupler U203, a resistor R5, a resistor R6, a resistor R7, and a capacitor C3. Among them, the first end of the diode rectifier bridge tube D202 is connected to the power live wire N-AC-220-K; the second end of the diode rectifier bridge tube D202 is connected to the power neutral wire N-AC-220-N; the third end of the diode rectifier bridge tube D202 is connected to the first end of the resistor R5; the fourth end of the diode rectifier bridge tube D202 is connected to the second pin of the transistor output optocoupler U203 and the first end of the capacitor C3; the second end of the resistor R5 is connected to the second end of the capacitor C3 and the first pin of the transistor output optocoupler U203; the third pin of the transistor output optocoupler U203 and the first end of the resistor R6 are connected as a signal input end AC-IN-H to the signal end of the main control chip in the control circuit 1; the fourth end of the transistor output optocoupler U203 is connected to the first end of the resistor R7; the second end of the resistor R6 is grounded; the second end of the resistor R7 is connected to the third voltage end VDD-5V.

[0072] Among them, it should be noted that Figure 6 As a partial circuit in the specific circuit of the detection circuit 18, the circuit described in this application reflects the connection between the detection circuit 18 and the control circuit 1.

[0073] Figure 7 The corresponding control circuit 1 includes: MOS tube Q202, resistor R8, resistor R9, resistor R10, diode D203, chip U205, and relay K202. Among them, the first end of the MOS tube Q202 is connected to the first end of the resistor R8 and the fourth pin of the chip U205; the second end of the MOS tube Q202 is connected to the battery BAT1 and the second end of the resistor R8; the third end of the MOS tube Q202 is connected to the first end of the diode D203 and the first pin of the relay K202; the first pin of the chip U205 is connected to the first end of the resistor R9; the second pin of the chip U205 is connected to the neutral line AC-K2-EN; the third pin of the chip U205 is connected to the first end of the resistor R10; the second end of the resistor R9 is connected to the third voltage terminal VDD-5V; the second end of the resistor R10 is grounded; the second end of the diode D203 is connected to the second pin of the relay K202; the third pin of the relay K202 is connected to the first neutral line N-AC220V-L+; the fourth pin of the relay K202 is connected to the second neutral line N-AC220-L++; the fifth pin of the relay K202 is connected to the live line N-AC220-K.

[0074] Among them, it should be noted that Figure 7As a part of the specific circuit of the control circuit 1, the control circuit 1 also includes a main control chip, which is used to connect with the first conversion circuit 5, the first port expander 6, the first communication circuit 15, the third communication circuit 17, the detection circuit 18, the second conversion circuit 10, the second port expander 12 and the modulation circuit 11. Since the main control chip is usually a conventional control chip, it is not described in detail in this application.

[0075] In a specific embodiment, a structure of a charging and inverter integrated machine with intelligent monitoring and regulation includes: a control circuit 1, a battery 2, an inverter 3, a first group of target sensors 4, a first conversion circuit 5, a first port expander 6, a first switch 7, a second target sensor group 9, a second port expander 12, a second switch 13, a second conversion circuit 10, a modulation circuit 11, a first communication circuit 15, a second communication circuit 16, a third communication circuit 17 and a detection circuit 18. The function of the inverter 3 is to convert the DC power output by the battery 2 into AC power for the use of the load 8; the first communication circuit 15 connects the inverter 3 and the control circuit 1 to realize the data and information interaction between the inverter 3 and the control circuit 1; the second communication circuit 16 connects the control circuit 1 and the smart device (for example, a smart phone, a computer, etc.), and the smart device provides an intuitive and friendly user interface for the user, and displays the real-time status of the current charging and inverter integrated machine through the current user interface, such as battery voltage, current, power, predicted remaining battery life, and the real-time power of each load 8 at present; it supports the setting of threshold alarms, priority load management and other functions, allowing users to customize configuration parameters. Priority load management and the like also need to be sent to the control circuit 1 through the smart device. The third communication circuit 17 and the detection circuit 18 are used to connect the control circuit 1 and the battery 2. The reason is that not all batteries 2 have communication capabilities. Therefore, in the design of this application, the communication channel between the control circuit 1 and the battery 2 is guaranteed by the third communication circuit 17 and the detection circuit 18.

[0076] Among them, the function of the inverter 3 is to convert the DC power output by the battery 2 into AC power for the use of the load 8. Therefore, in terms of connection relationship, the inverter 3 is connected to the load 8 through the power line; the battery 2 is connected to the control circuit 1 through the power line; and the inverter 3 is connected to the load 8 through the power line. The principle is: when the load 8 is an AC load, the inverter 3 converts the DC power in the battery 2 into AC power through the power line, and then supplies power to the load 8 through the power line between the load 8. The application is applied to a vehicle specifically in an RV, and the specific load condition in the RV is designed according to the owner, so the load 8 includes both AC load and DC load.

[0077] It should be noted that the circuit provided in this application is only one possible implementation method, but it is not limiting.

[0078] Among them, as a preferred embodiment, the second communication circuit 16 specifically realizes wireless communication through WIFI or 4G network, and the specific function of the second communication circuit is: wirelessly connecting with smart devices, reporting real-time telemetry data of the RV, and receiving control instructions issued by the smart devices.

[0079] Therefore, in configuring parameters, issuing switch instructions (first switch instructions and second switch instructions), and displaying the integrated charger and inverter through smart devices, this application is equivalent to establishing multiple safety protection mechanisms. When the battery is over-voltage or under-voltage, the battery is cut off in time; when over-current, short circuit, or over-temperature occurs, the large load channel is cut off in time. It can also record and report fault events, which is convenient for users to quickly locate problems.

[0080] In summary, the startup and operation process of the charging inverter integrated machine with intelligent monitoring and regulation provided in this application is as follows: Figure 8 As shown, including:

[0081] S10: Start.

[0082] S11: Interface initialization.

[0083] S12: Receive serial port data and parse it.

[0084] S13: Load / charging operation parameters collected by the first / second target sensor group.

[0085] S14: Control the battery fan on and off according to the temperature parameter in the load / charging operation parameter.

[0086] S15: Send real-time data to smart devices.

[0087] In this application, steps S11-S12 are mainly used as preparations for the startup of the intelligent monitoring and regulating charging inverter integrated machine, wherein the interfaces include: USART: (Universal Synchronous / Asynchronous Receiver / Transmitter), ADC (Analog-to-digital converter), GPIO (General Purpose Input Output, a port expander), TIMER, etc., that is, Figure 2 In the connection relationship shown, all interfaces are connected in pairs. Step S13 is the above-mentioned real-time corresponding step. Step S14: judging whether the current temperature parameter exceeds the threshold value, if so, controlling the battery fan to turn on for heat dissipation.

[0088] In a specific embodiment, the specific analysis process of step S12 is as follows: Fig. 9 As shown, including:

[0089] S20: Start.

[0090] S21: USART receives the data from the interrupt function and puts it into the data queue.

[0091] S22: Determine whether the received data represents a complete instruction.

[0092] S23: If yes, parse the data; if no, proceed to step S26.

[0093] S24: Determine whether the parsed data indicates that the current state is protection.

[0094] S25: If yes, execute the protection operation.

[0095] S26: If no, end.

[0096] In the present application, step S21: USART receives the data of the interrupt function and puts it into the data queue, indicating that the switch instruction or other instructions of the user have been received; step S22: mainly judge whether the instruction is complete; step S24: the protection status here implicitly indicates whether the parsed data is the on instruction in the switch instruction and the off instruction sent by the other users; step S25: the protection operation here is to turn on the switch, disconnect the connection between the battery and the load or other shutdown behaviors.

[0097] It can be seen that the intelligent monitoring and adjustment charging inverter integrated machine provided by the present application improves the power conversion efficiency, and has the ability to monitor and intelligently adjust the load and charging in real time; it realizes real-time monitoring of battery power, input and output power, charging status and various electrical load conditions. And intelligently adjust the power supply strategy according to factors such as battery capacity, temperature, and charging status to protect battery life and ensure stable power supply. Provide safety functions such as overload protection, low voltage protection, and high voltage cutoff to ensure the safe operation of the entire RV power system. At the same time, it monitors the real-time charging power of each road by itself, and controls the maximum charging power of each road by current limiting or charger command control, so as to ensure that the total charging power of the RV energy storage battery is within a safe range. It is also possible to formulate a priority strategy for each charging. The charging inverter integrated machine also reports the real-time charging voltage and current data of each road to the smart device. Users can intuitively view the charging status through the APP, and can modify the charging configuration and send it to the intelligent monitoring and adjustment charging inverter integrated machine.

[0098] In order to solve the problems of the prior art, the present application also provides a motorhome, including the above-mentioned intelligent monitoring and regulating charging inverter integrated machine, and having the same beneficial effects. Since the embodiment of the motorhome provided by the present application is the same as the embodiment of the above-mentioned intelligent monitoring and regulating charging inverter integrated machine, the present application will not be repeated here.

[0099] The above is a detailed introduction to the intelligent monitoring and regulating charging inverter and RV provided by the present application. The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the embodiments can be referenced to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part description. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

[0100] It should also be noted that, in this specification, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

Claims

1. An intelligent monitoring and regulating charging and inverter integrated machine, comprising a control circuit, a battery and an inverter, characterized in that: include: a first target sensor group, a first conversion circuit, a first port expander, and a first switch; The number of the first target sensor group, the first conversion circuit, the first port expander and the first switch is at least one; Wherein, the first target sensor group is arranged at the corresponding load, and is used to obtain the load operation parameters of the load; The first end of the first conversion circuit is connected to the first target sensor group, the second end of the first conversion circuit and the first end of the first port expander are connected to the first end of the control circuit, the first end of the first switch is connected to the second end of the first port expander, and the control end of the load is connected to the second end of the first switch; the inverter is connected to the second end of the control circuit, and is used to convert the DC power in the intelligent monitoring and regulating charging inverter into AC power; the battery is connected to the third end of the control circuit; the first conversion circuit converts the load operating parameters so that the control circuit sends a first switch instruction determined according to the processed load operating parameters to the first port expander, the first port expander controls the first switch to be turned on or off according to the first switch instruction, and the load determines the connection state between the load and the battery according to the state of the first switch; Also includes: a charging regulation circuit; wherein the charging regulation circuit includes: a second target sensor group, a second port expander, a second switch, a second conversion circuit and a modulation circuit; the number of the second target sensor group, the second port expander, the second switch, the second conversion circuit and the modulation circuit is at least one; Wherein, the second target sensor group is arranged at the charging circuit, and is used to obtain the charging operation parameters of the charging circuit; The first end of the second conversion circuit is connected to the second target sensor group, the second end of the second conversion circuit, the first end of the second port expander and the first end of the modulation circuit are connected to the fourth end of the control circuit, the first end of the second switch is connected to the second end of the second port expander, the second end of the second switch is connected to the first control end of the charging circuit, and the second end of the modulation circuit is connected to the second control end of the charging circuit; the second conversion circuit converts the charging operation parameters so that the control circuit sends a second switch instruction determined according to the processed charging operation parameters to the second port expander, and sends a modulation instruction determined according to the processed charging operation parameters to the modulation circuit; the second port expander controls the conduction or disconnection of the second switch according to the second switch instruction; the charging circuit adjusts the connection state between the charging circuit and the battery according to the state of the second switch and the modulation instruction; The control circuit includes: MOS tube Q202, resistor R8, resistor R9, resistor R10, diode D203, chip U205, relay K202; The first end of the MOS tube Q202 is connected to the first end of the resistor R8 and the fourth pin of the chip U205; the second end of the MOS tube Q202 is connected to the battery and the second end of the resistor R8; the third end of the MOS tube Q202 is connected to the first end of the diode D203 and the first pin of the relay K202; The first pin of the chip U205 is connected to the first end of the resistor R9; the second pin of the chip U205 is connected to the neutral line AC-K2-EN; the third pin of the chip U205 is connected to the first end of the resistor R10; The second end of the resistor R9 is connected to the third voltage terminal VDD-5V; The second end of the resistor R10 is grounded; The second end of the diode D203 is connected to the second pin of the relay K202; The third pin of the relay K202 is connected to the first neutral line N-AC220V-L+; the fourth pin of the relay K202 is connected to the second neutral line N-AC220-L++; the fifth pin of the relay K202 is connected to the live line N-AC220-K.

2. The charging inverter integrated machine with intelligent monitoring and regulation according to claim 1 is characterized in that: The first target sensor group includes: A first voltage sensor, wherein an input end of the first voltage sensor is connected to the load and is used to obtain a load voltage parameter in the load operating parameter; A first current sensor, wherein an input end of the first current sensor is connected to the load and is used to obtain a load current parameter in the load operation parameter; a first temperature sensor, the first temperature sensor being disposed at the load and being used to obtain a load temperature parameter in the load operating parameter; The second target sensor group includes: a second voltage sensor, wherein an input end of the second voltage sensor is connected to an output end of the charging circuit, and is used to obtain a charging voltage parameter in the charging operation parameter; a second current sensor, wherein an input end of the second current sensor is connected to an output end of the charging circuit, and is used to obtain a charging current parameter in the charging operation parameter; A second temperature sensor is provided at the charging circuit and is used to obtain a charging temperature parameter in the charging operation parameter.

3. The charging inverter integrated machine with intelligent monitoring and regulation according to claim 1 is characterized in that: The first conversion circuit is a first analog-to-digital conversion detection circuit; The input end of the first analog-to-digital conversion detection circuit is connected to the first target sensor group as the first end of the first conversion circuit, and the output end of the first analog-to-digital conversion detection circuit is connected to the first end of the control circuit as the second end of the first conversion circuit; The second conversion circuit is a second analog-to-digital conversion detection circuit; The input end of the second analog-to-digital conversion detection circuit is connected to the second target sensor group as the first end of the second conversion circuit, and the output end of the second analog-to-digital conversion detection circuit is connected to the fourth end of the control circuit as the second end of the second conversion circuit.

4. The charging inverter integrated machine with intelligent monitoring and regulation according to claim 1 is characterized in that: The first switch is a first relay; The input end of the first relay is connected to the second end of the first port expander as the first end of the first switch, and the output end of the first relay is connected to the control end of the load as the second end of the first switch; The second switch is a second relay; The input end of the second relay is connected to the second end of the second port expander as the first end of the second switch, and the output end of the second relay is connected to the first control end of the charging circuit as the second end of the second switch.

5. The charging inverter integrated machine with intelligent monitoring and regulation according to claim 1 is characterized in that: The modulation circuit is a pulse modulation circuit; The input end of the pulse modulation circuit is connected to the fourth end of the control circuit as the first end of the modulation circuit, and the output end of the pulse modulation circuit is connected to the second control end of the charging circuit as the second end of the modulation circuit.

6. The charging inverter integrated machine with intelligent monitoring and regulation according to claim 1 is characterized in that: Also includes: a first communication circuit; The first end of the first communication circuit is connected to the inverter, and the second end of the first communication circuit is connected to the second end of the control circuit.

7. The charging inverter integrated machine with intelligent monitoring and regulation according to claim 1 is characterized in that: Also includes: a second communication circuit; The first end of the second communication circuit is connected to the fifth end of the control circuit, and the second end of the second communication circuit is connected to the smart device.

8. The charging inverter integrated machine with intelligent monitoring and regulation according to any one of claims 1 to 7, characterized in that: Also includes: a third communication circuit and a detection circuit; The first end of the third communication circuit is connected to the third end of the control circuit and the first end of the detection circuit, and the second end of the third communication circuit is connected to the second end of the detection circuit and the battery.

9. A motorhome, characterized in that: A charging inverter integrated machine including the intelligent monitoring and adjustment according to any one of claims 1 to 8.

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