Automobile charging system

Abstract

The utility model relates to an automobile charging system. The automobile charging system comprises a voltage module, a generator and a controller, the generator is electrically connected to the voltage module and supplies power to the voltage module; the voltage module is electrically connected to the controller and supplies power to small electric equipment of the automobile; the number of the voltage modules is more than two, the plurality of voltage modules are connected in series, and the controller is at most electrically connected with one of the voltage modules; the output voltage of the voltage module is matched with the rated voltage of the electric equipment of the automobile, and the voltage module supplies power to the small electric equipment of the automobile. The connection mode is simple, and the power supply requirement of an automobile charging system can be met. According to the automobile charging system, the connection mode is simple, and power can be supplied to small electric equipment in an automobile. After a DCDC (direct current converter) in a traditional automobile power supply system is cancelled, the generator directly supplies power to the voltage module, and then the controller supplies power to small electric equipment in the automobile system.

Description

Technical Field

[0001] This application relates to the technical field of automotive power distribution, and particularly to an automotive charging system. Background Art

[0002] For existing special vehicles such as motorhomes, monitoring vehicles, and mobile laboratories, in order to meet the demand of high-power electrical equipment, a set of 48V generator system needs to be installed. If a 48V single generator system is adopted, a DC converter is required to convert the voltage of the 48V battery into 12V and then supply power to the 12V electrical equipment of the whole vehicle.

[0003] However, due to the high cost of the DC converter, and if the DC converter is damaged, it will cause the whole vehicle to be in a power-deficient state. Secondly, the DC converter is installed in the space inside the vehicle, which affects the overall space layout. Utility Model Content

[0004] In view of this, this application proposes an automotive charging system to solve the above problems.

[0005] According to one aspect of this application, an automotive charging system is provided, including: a voltage module, a generator, and a controller; the generator is electrically connected to the voltage module to supply power to the voltage module;

[0006] The voltage module is electrically connected to the controller to supply power to small electrical equipment of the vehicle;

[0007] The number of the voltage modules is more than two, and multiple voltage modules are connected in series, and the controller is electrically connected to at most one of the voltage modules;

[0008] The output voltage of the voltage module is adapted to the rated voltage of the electrical equipment of the vehicle to supply power to small electrical equipment of the vehicle.

[0009] In a possible implementation, any one of the voltage modules is electrically connected to the controller to supply power to small electrical equipment of the vehicle; multiple voltage modules are connected in series to supply power to large electrical equipment of the vehicle.

[0010] In a possible implementation, it further includes: a storage battery, the storage battery is electrically connected to the controller, stores the power of the voltage module, and supplies power to small electrical equipment of the vehicle.

[0011] In a possible implementation, each voltage module is electrically connected to the controller through a switch, and the loop in which multiple voltage modules are connected in series is electrically connected to the generator through a switch.

[0012] In a possible implementation, the voltages of each of the voltage modules are the same, and the voltage of the voltage module is equal to the voltage of the storage battery.

[0013] In a possible implementation, the sum of the voltages of multiple voltage modules is equal to the output voltage of the generator.

[0014] In a possible implementation, the voltage of the voltage module is set in proportion to the power generation voltage of the generator.

[0015] In a possible implementation, the number of groups of terminals of the controller matches the number of voltage modules.

[0016] In a possible implementation, the voltage of the voltage module is 12V, and the output voltage of the generator is 48V.

[0017] In a possible implementation, the number of voltage modules is four, and the voltage module is a 12V battery pack, and the controller is an MCU chip.

[0018] Advantages of the present application:

[0019] The vehicle charging system proposed in the present application has a simple connection method. After canceling the DCDC (DC converter) in the traditional power supply system, the 12V electrical load directly takes power from the 12V module in the 48V motor. Specifically, there are a voltage module, a generator, and a controller; the generator is electrically connected to the voltage module to supply power to the voltage module; the voltage module is electrically connected to the controller to supply power to the small electrical devices of the vehicle; the number of voltage modules is more than two, and multiple voltage modules are connected in series, and the controller is electrically connected to at most one of the voltage modules; the output voltage of the voltage module is adapted to the rated voltage of the electrical devices of the vehicle to supply power to the small electrical devices of the vehicle. In order to maintain the voltage balance of the 48V battery cells, it is necessary to transform the module that outputs 12V current based on the MCU chips of each 12V module.

[0020] According to the following detailed description of the exemplary embodiments with reference to the accompanying drawings, other features and aspects of the present application will become clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings included in the specification and constituting a part of the specification show the exemplary embodiments, features, and aspects of the present application together with the specification, and are used to explain the principles of the present application.

[0022] Figure 1 Schematic diagram of the vehicle charging system showing an embodiment of the present application;

[0023] Figure 2 Circuit diagram of the vehicle charging system showing an embodiment of the present application. Detailed implementation manners

[0024] Various exemplary embodiments, features, and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the drawings denote elements having the same or similar functions. Although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0025] Among them, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application or simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present application.

[0026] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0027] The term "exemplary" used herein means "serving as an example, embodiment, or illustration". Any embodiment described as "exemplary" herein need not be construed as superior to or better than other embodiments.

[0028] In addition, for a better description of the present application, numerous specific details are given in the following detailed implementation manners. Those skilled in the art should understand that the present application can also be implemented without some specific details. In some instances, methods, means, elements, and circuits well-known to those skilled in the art are not described in detail so as to highlight the gist of the present application.

[0029] Such as Figure 1 and Figure 2As shown in the figure, the vehicle charging system includes: a generator 100, a voltage module 200, and a controller 300; the generator 100 is electrically connected to the voltage module 200 to supply power to the voltage module 200; the voltage module 200 is electrically connected to the controller 300 to supply power to the small electrical devices 10 of the vehicle; the number of voltage modules 200 is more than two, and multiple voltage modules 200 are connected in series, and the controller 300 is electrically connected to at most one of the voltage modules 200; the output voltage of the voltage module 200 is adapted to the rated voltage of the electrical devices of the vehicle to supply power to the small electrical devices 10 of the vehicle.

[0030] The vehicle charging system proposed in this embodiment has a simple connection method. After canceling the DCDC (DC converter) in the traditional power supply system, the 12V electrical load directly draws power from the 12V module in the 48V motor. Specifically, there are a voltage module 200, a generator 100, and a controller 300; the generator 100 is electrically connected to the voltage module 200 to supply power to the voltage module 200; the voltage module 200 is electrically connected to the controller 300 to supply power to the small electrical devices 10 of the vehicle; the number of voltage modules 200 is more than two, and multiple voltage modules 200 are connected in series, and the controller 300 is electrically connected to at most one of the voltage modules 200; the output voltage of the voltage module 200 is adapted to the rated voltage of the electrical devices of the vehicle to supply power to the small electrical devices 10 of the vehicle. In order to maintain the voltage balance of the 48V battery cells, it is necessary to transform the modules that output 12V current based on the MCU chips of each 12V module.

[0031] See Figure 2 , it should be noted here that the specific implementation method of the battery pack is as follows: when the controller 300 MCU only conducts A1 and B1, other Mosfets (semiconductor field effect transistors) are disconnected, and the 12V terminal draws power from the 12V module 1; when the controller 300 MCU only conducts A2 and B2, other Mosfets (semiconductor field effect transistors) are disconnected, and the 12V terminal draws power from the 12V module 2; when the controller 300 MCU only conducts A3 and B3, other Mosfets (semiconductor field effect transistors) are disconnected, and the 12V terminal draws power from the 12V module 3; when the controller 300 MCU only conducts A4 and B4, other Mosfets (semiconductor field effect transistors) are disconnected, and the 12V terminal draws power from the 12V module 4; when the controller 300 MCU disconnects all Mosfets (semiconductor field effect transistors), the 12V power supply does not output current.

[0032] In addition, it should also be noted that the software part involved in this embodiment can all be implemented by existing technologies, so it will not be elaborated too much in this embodiment.

[0033] In one specific embodiment, any one of the voltage modules 200 is electrically connected to the controller 300 to supply power to the small electrical devices 10 of the vehicle; multiple voltage modules 200 are connected in series to supply power to the large electrical devices 20 of the vehicle. In this implementation, it should be noted that it is convenient to supply power to each electrical device of the vehicle according to the actual situation, and since the DCDC (DC converter) is reduced, the occupied space inside the vehicle is reduced.

[0034] In one specific embodiment, it further includes: a storage battery 400, which is electrically connected to the controller 300, stores the power of the voltage module 200, and supplies power to the small electrical devices 10 of the vehicle. It stabilizes the voltage of the voltage module 200, so that a smooth current is input to the small electrical devices 10 inside the vehicle, improving the safety of the entire vehicle voltage system.

[0035] In one specific embodiment, each voltage module 200 is electrically connected to the controller 300 through a switch, and the circuit in which multiple voltage modules 200 are connected in series is electrically connected to the generator 100 through a switch. In this implementation, it should be noted that the switch is a Mosfet (semiconductor field effect transistor), and the semiconductor field effect transistor has a gate, a drain, and a source. When the gate voltage is zero or lower than a certain threshold, the conductive channel is in a high-resistance state and current can hardly pass through; when the gate voltage increases to a certain value, the conductive channel is activated, the resistance decreases, and current is allowed to pass through.

[0036] In one specific embodiment, the voltage of each voltage module 200 is the same, and the voltage of the voltage module 200 is equal to the voltage of the storage battery 400. In this implementation, it should be noted that the dashed block diagram represents a 48V battery pack. One 48V power output and one 12V power output are led out from the battery pack. The module with a 12V output is selected through a multi-way switch. So that the small electrical devices 10 inside the vehicle can be powered by the output of multiple 12V power supplies.

[0037] In one specific embodiment, the sum of the voltages of multiple voltage modules 200 is equal to the output voltage of the generator 100. So that any one of the voltage modules 200 can provide a suitable voltage to the small electrical devices 10 of the vehicle.

[0038] In one specific embodiment, the voltage of the voltage module 200 is set in proportion to the generating voltage of the generator 100. In this embodiment, it should be noted that since the voltage of the electrical devices of the vehicle is generally 48V or 12V, therefore, when the voltage of the voltage module 200 is selected to be 12V, the voltage module 200 is in proportion to the 48V voltage provided by the generator 100.

[0039] In one specific embodiment, the number of groups of terminals of the controller 300 matches the number of voltage modules 200. In this embodiment, it should be noted that when the number of voltage modules 200 is four, the number of groups of terminals of the controller 300 is also four, and each group of terminals is correspondingly electrically connected to four voltage modules 200.

[0040] In one specific embodiment, the voltage of the voltage module 200 is 12V, and the output voltage of the generator 100 is 48V.

[0041] In one specific embodiment, the number of voltage modules 200 is four, and the voltage module 200 is a 12V battery pack, and the controller 300 is an MCU chip.

[0042] It should be noted that although the automotive charging system is introduced above by taking this application as an example, those skilled in the art can understand that this application should not be limited thereto. In fact, users can flexibly set parameters according to personal preferences and / or actual application scenarios as long as it is reasonable.

[0043] The embodiments of the present application have been described above. The above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, the practical application, or the improvement of the technology in the market, or to enable other ordinary skilled in the art in this technical field to understand the disclosed embodiments.

Claims

1. A car charging system, characterized in that: include: A voltage module, a generator and a controller; the generator is electrically connected to the voltage module to supply power to the voltage module; The voltage module is electrically connected to the controller to supply power to small electrical devices of the vehicle; The number of the voltage modules is more than two, and the plurality of the voltage modules are connected in series, and the controller is electrically connected to at most one of the voltage modules; The output voltage of the voltage module is adapted to the rated voltage of the electrical equipment of the vehicle, and supplies power to the small electrical equipment of the vehicle.

2. The vehicle charging system according to claim 1, characterized in that: Any one of the voltage modules is electrically connected to the controller to supply power to the small electrical equipment of the vehicle; a plurality of the voltage modules are arranged in series to supply power to the large electrical equipment of the vehicle.

3. The vehicle charging system according to claim 1, characterized in that: Also includes: A storage battery is electrically connected to the controller, stores the electricity of the voltage module, and supplies power to small electrical devices of the vehicle.

4. The vehicle charging system according to claim 1, characterized in that: Each of the voltage modules is electrically connected to the controller via a switch, and a loop in which a plurality of the voltage modules are connected in series is electrically connected to the generator via a switch.

5. The vehicle charging system according to claim 3, characterized in that: The voltage of each voltage module is the same, and the voltage of each voltage module is equal to the voltage of the battery.

6. The vehicle charging system according to claim 1, characterized in that: The sum of voltages of the plurality of voltage modules is equal to the output voltage of the generator.

7. The vehicle charging system according to any one of claims 1 to 6, characterized in that: The voltage of the voltage module is set in proportion to the power generation voltage of the generator.

8. The vehicle charging system according to any one of claims 1 to 6, characterized in that: The number of groups of terminals of the controller matches the number of the voltage modules.

9. The vehicle charging system according to any one of claims 1 to 6, characterized in that: The voltage of the voltage module is 12V, and the output voltage of the generator is 48V.

10. The vehicle charging system according to any one of claims 1 to 6, characterized in that: The number of the voltage modules is four, and the voltage module is a 12V battery pack, and the controller is an MCU chip.

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