Hidden vehicle-mounted mobile power supply arranged in hub of automobile spare tire

Abstract

The utility model relates to the technical field of mobile power supplies, in particular to a hidden vehicle-mounted mobile power supply arranged in a hub of an automobile spare tire. The automobile spare tire hub is provided with a containing cavity formed by sinking inwards, one end of the containing cavity is provided with an opening, and the vehicle-mounted mobile power source stretches into the automobile spare tire hub from the opening end and is installed in the containing cavity. Therefore, the existing space in the vehicle can be fully utilized. Not only can the power supply be provided for necessary household appliances when people go out for playing, but also the storage space in the vehicle does not need to be additionally occupied.

Description

Technical Field

[0001] The utility model relates to the technical field of mobile power supplies, in particular to a hidden vehicle-mounted mobile power supply arranged in a wheel hub of a spare tire of an automobile. Background Art

[0002] Thanks to the continuous development of science and technology, the domestic industrial upgrading has gradually improved. People are gradually getting rid of the tedious production and manufacturing activities, and their leisure time is increasing. At the same time, with the gradual improvement of people's living standards, going out for self-driving tours in their leisure time is becoming the choice of more and more people. In modern life, household appliances are indispensable. Of course, you also need to carry some necessary household appliances when you go out for self-driving tours. If you want to use these household appliances, it is essential to carry a mobile power supply with you. However, traditional mobile power supplies are bulky box-type power supplies, which are not only inconvenient to carry, but also occupy most of the space in the car, making the already small and limited space in the car even more crowded, affecting the travel experience. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a hidden vehicle-mounted mobile power source placed in the wheel hub of a spare tire of a car, which can make full use of the existing space in the car.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] A hidden vehicle-mounted mobile power source is placed in a spare tire hub of a car. The spare tire hub of the car has a receiving cavity formed by an inward depression, one end of the receiving cavity has an opening, and the vehicle-mounted mobile power source extends into the spare tire hub of the car from the opening end and is installed in the receiving cavity.

[0006] Furthermore, the vehicle-mounted mobile power source does not protrude from the edge of the opening of the accommodating cavity.

[0007] Furthermore, a mounting hole is provided on the bottom surface of the corresponding accommodating cavity of the spare tire hub of the automobile, and the vehicle-mounted mobile power supply includes a fixing bolt, a fixing cover plate, a power conversion module, a battery module, a module base and a fixing nut; the module base is provided with a cavity with an opening at one end and the cavity can accommodate a battery module and a power conversion module, and the power conversion module is electrically connected to the battery module; the fixing cover plate is covered at the opening of the module base to close the opening; the fixing bolt passes through the fixing cover plate, the module base and the mounting hole in sequence and is connected to the fixing nut so that the vehicle-mounted mobile power supply is fixedly installed in the accommodating cavity of the spare tire hub of the automobile.

[0008] Furthermore, casters are installed at the bottom of the module base.

[0009] Furthermore, a towing handle is arranged on the fixed cover plate.

[0010] Further, the power conversion module includes a power conversion module panel, a power conversion module control circuit board, a power conversion module control circuit board bracket, a power conversion module power conversion circuit board, a power conversion module power conversion circuit board bracket and a power conversion module housing;

[0011] The power conversion circuit board bracket of the power conversion module is placed inside the power conversion module housing and is clamped and fixed to the power conversion module housing; the power conversion circuit board of the power conversion module is fixed to the power conversion circuit board bracket of the power conversion module with screws; the power conversion module control circuit board bracket is placed inside the power conversion module housing and is located above the power conversion circuit board of the power conversion module and is clamped and fixed to the power conversion module housing; the power conversion module control circuit board is fixed to the power conversion module control circuit board bracket with screws; the power conversion module panel is installed on the top of the power conversion module housing and is clamped and fixed to the power conversion module housing.

[0012] Furthermore, the power conversion module panel includes a display screen, function buttons, an AC output socket, a USB Type-C interface, a DC12V car charger interface, a USB Type-A interface, a solar panel input interface, a battery output interface and an AC input interface;

[0013] The display screen, function buttons, USB Type-C interface and USB Type-A interface are electrically connected to the power conversion module control circuit board respectively;

[0014] The AC output socket, DC12V car charging interface, solar panel input interface, battery output interface and AC input interface are electrically connected to the power conversion circuit board of the power conversion module respectively.

[0015] Further, the battery module includes a battery module cover, a battery pack, a BMS circuit board and a battery module housing;

[0016] The BMS circuit board is fixed under the battery pack with screws and is electrically connected to the battery pack; the battery pack is placed inside the battery module shell and is clamped and fixed to the battery module shell; the battery module cover is buckled on the upper end of the battery module shell and is clamped and fixed to the battery module shell.

[0017] The beneficial effects of the utility model are:

[0018] The utility model provides a hidden vehicle-mounted mobile power source placed in the spare tire hub of a car, and the vehicle-mounted mobile power source is placed in the accommodation cavity of the spare tire hub of the vehicle; thus, the existing space in the car can be fully utilized. It can power necessary household appliances when going out for fun, and does not need to occupy additional storage space in the car. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the installation of a hidden vehicle-mounted mobile power source placed in the wheel hub of a spare tire of a vehicle according to the utility model;

[0020] Figure 2 This is a structural exploded view of a hidden vehicle-mounted mobile power source placed in the wheel hub of a spare tire of a vehicle according to the utility model;

[0021] Figure 3 This is a structural schematic diagram of a module base of a hidden vehicle-mounted mobile power source placed in a spare tire hub of a vehicle according to the utility model;

[0022] Figure 4 This is a structural exploded view of a power conversion module of a hidden vehicle-mounted mobile power source placed in the wheel hub of a spare tire of a car according to the utility model;

[0023] Figure 5 This is a structural schematic diagram of a power conversion module panel of a hidden vehicle-mounted mobile power source placed in the wheel hub of a spare tire of a car according to the utility model;

[0024] Figure 6 This is a structural exploded view of a battery module of a hidden vehicle-mounted mobile power source placed in the wheel hub of a spare tire of a car according to the utility model;

[0025] Figure 7 This is a structural schematic diagram of a fixed cover plate of a hidden vehicle-mounted mobile power source placed in the wheel hub of a spare tire of a car according to the utility model;

[0026] Figure 8 This is a schematic diagram of the assembly of a hidden vehicle-mounted mobile power source placed in the wheel hub of a spare tire of a vehicle according to the utility model;

[0027] Fig. 9 This is a module connection diagram of a battery module of a hidden vehicle-mounted mobile power source placed in the wheel hub of a spare tire of a car according to the utility model;

[0028] Fig.10 This is a module connection diagram of a power conversion module control circuit board of a hidden vehicle-mounted mobile power source placed in the wheel hub of a spare tire of a car according to the utility model;

[0029] Fig.11 This is a module connection diagram of a power conversion circuit board of a hidden vehicle-mounted mobile power source placed in the wheel hub of a spare tire of a car according to the utility model;

[0030] Fig.12 This is a module connection diagram of a battery module of a hidden vehicle-mounted mobile power source placed in the wheel hub of a spare tire of a car according to the utility model;

[0031] Description of labels:

[0032] 1. Fixing bolts; 2. Fixing cover; 3. Power conversion module;

[0033] 301, power conversion module panel; 3011, display screen; 3012, function buttons; 3013, AC output socket; 3014, USB Type-C interface; 3015, DC12V car charger interface; 3016, USB Type-A interface; 3017, solar panel input interface; 3018, battery output interface; 3019, AC input interface;

[0034] 302, power conversion module control circuit board; 3021, DC / DC conversion module; 3022, display interface; 3023, USB Type-A conversion module; 3024, USB Type-C conversion module; 3025, MCU main control module; 3026, button detection module; 3027, IOT module; 3028, power conversion monitoring module; 3029, power conversion control module;

[0035] 303. Power conversion module control circuit board bracket;

[0036] 304, power conversion module power conversion circuit board; 3041, bidirectional inverter module; 3042, bidirectional DC / DC conversion module; 3043, MPPT conversion module; 3044, DC / DC power supply module; 3045, MCU control module; 3046, monitoring module;

[0037] 305. A power conversion circuit board bracket of a power conversion module; 306. A power conversion module housing;

[0038] 4. Battery module; 401. Battery module cover; 402. Battery pack; 403. BMS circuit board; 4031. AFE module; 4032. Charging control module; 4033. MCU module; 4034. Discharging control module; 4035. Collision detection sensor; 404. Battery module housing;

[0039] 5. Module base; 501. Module base housing; 502. Casters;

[0040] 6. Fix the nut. DETAILED DESCRIPTION

[0041] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0042] Please refer to Figures 1 to 12The utility model provides a hidden vehicle-mounted mobile power supply placed in the spare tire hub of a car. The spare tire hub of the car has a receiving cavity formed by an inward depression, one end of the receiving cavity has an opening, and the vehicle-mounted mobile power supply extends into the spare tire hub of the car from the opening end and is installed in the receiving cavity.

[0043] The beneficial effects of the utility model are:

[0044] The utility model provides a hidden vehicle-mounted mobile power source placed in the spare tire hub of a car, and the vehicle-mounted mobile power source is placed in the accommodation cavity of the spare tire hub of the vehicle; thus, the existing space in the car can be fully utilized. It can power necessary household appliances when going out for fun, and does not need to occupy additional storage space in the car.

[0045] Furthermore, the vehicle-mounted mobile power source does not protrude from the edge of the opening of the accommodating cavity.

[0046] It can be seen from the above description that the vehicle-mounted mobile power supply does not protrude from the edge of the opening of the accommodating cavity, does not occupy the external space of the spare tire hub of the car, and fully utilizes the existing space in the car.

[0047] Furthermore, a mounting hole is provided on the bottom surface of the corresponding accommodating cavity of the spare tire hub of the automobile, and the vehicle-mounted mobile power supply includes a fixing bolt, a fixing cover plate, a power conversion module, a battery module, a module base and a fixing nut; the module base is provided with a cavity with an opening at one end and the cavity can accommodate a battery module and a power conversion module, and the power conversion module is electrically connected to the battery module; the fixing cover plate is covered at the opening of the module base to close the opening; the fixing bolt passes through the fixing cover plate, the module base and the mounting hole in sequence and is connected to the fixing nut so that the vehicle-mounted mobile power supply is fixedly installed in the accommodating cavity of the spare tire hub of the automobile.

[0048] It can be seen from the above description that the assembly of the vehicle-mounted mobile power supply and the spare tire hub of the vehicle is achieved through the above method.

[0049] Furthermore, casters are installed at the bottom of the module base.

[0050] As can be seen from the above description, the vehicle can be used for short-distance dragging during use.

[0051] Furthermore, a towing handle is arranged on the fixed cover plate.

[0052] It can be seen from the above description that the hidden vehicle-mounted mobile power source placed in the spare tire hub of a car is conveniently installed in the spare tire hub of a car, and the hidden vehicle-mounted mobile power source is conveniently towed for a short distance during use.

[0053] Further, the power conversion module includes a power conversion module panel, a power conversion module control circuit board, a power conversion module control circuit board bracket, a power conversion module power conversion circuit board, a power conversion module power conversion circuit board bracket and a power conversion module housing;

[0054] The power conversion circuit board bracket of the power conversion module is placed inside the power conversion module housing and is clamped and fixed to the power conversion module housing; the power conversion circuit board of the power conversion module is fixed to the power conversion circuit board bracket of the power conversion module with screws; the power conversion module control circuit board bracket is placed inside the power conversion module housing and is located above the power conversion circuit board of the power conversion module and is clamped and fixed to the power conversion module housing; the power conversion module control circuit board is fixed to the power conversion module control circuit board bracket with screws; the power conversion module panel is installed on the top of the power conversion module housing and is clamped and fixed to the power conversion module housing.

[0055] It can be seen from the above description that the corresponding functions and assembly structure of the power conversion module are realized through the above structural design.

[0056] Furthermore, the power conversion module panel includes a display screen, function buttons, an AC output socket, a USB Type-C interface, a DC12V car charger interface, a USB Type-A interface, a solar panel input interface, a battery output interface and an AC input interface;

[0057] The display screen, function buttons, USB Type-C interface and USB Type-A interface are electrically connected to the power conversion module control circuit board respectively;

[0058] The AC output socket, DC12V car charging interface, solar panel input interface, battery output interface and AC input interface are electrically connected to the power conversion circuit board of the power conversion module respectively.

[0059] As can be seen from the above description, the display screen is electrically connected to the power conversion module control circuit board for displaying system status information. The function button is electrically connected to the power conversion module control circuit board for setting system parameters, system working mode and viewing system information. The AC output socket is electrically connected to the power conversion circuit board of the power conversion module for outputting AC power for use by power-consuming devices. The USB Type-C interface is electrically connected to the power conversion module control circuit board for providing a DC power supply corresponding to the protocol standard to the USB power-consuming device. The DC12V car charger interface is electrically connected to the power conversion circuit board of the power conversion module. The DC12V car charger interface is a bidirectional power interface, which can be used as an output interface to provide power to power-consuming devices with a rated voltage of 12V; it can also be used as an input interface. During driving, the hidden vehicle-mounted mobile power supply placed in the spare tire hub of the car can be charged through the DC12V car charger interface on the car. The USB Type-A interface is electrically connected to the power conversion module control circuit board for providing a DC power supply corresponding to the protocol standard to the USB power-consuming device. The solar panel input interface is electrically connected to the power conversion circuit board of the power conversion module, and is used to use the solar panel to charge the hidden vehicle-mounted mobile power supply placed in the spare tire hub of the car. The battery output interface is electrically connected to the power conversion circuit board of the power conversion module. The battery output interface is the battery voltage output of the battery module, which can provide a DC power supply for an external mobile power inverter, and can also be used as an expansion and cascade of the hidden vehicle-mounted mobile power supply placed in the spare tire hub of the car. The AC input interface is electrically connected to the power conversion circuit board of the power conversion module, and is used to use the power grid to charge the hidden vehicle-mounted mobile power supply placed in the spare tire hub of the car.

[0060] Further, the battery module includes a battery module cover, a battery pack, a BMS circuit board and a battery module housing;

[0061] The BMS circuit board is fixed under the battery pack with screws and is electrically connected to the battery pack; the battery pack is placed inside the battery module shell and is clamped and fixed to the battery module shell; the battery module cover is buckled on the upper end of the battery module shell and is clamped and fixed to the battery module shell.

[0062] It can be seen from the above description that the corresponding functions and assembly structure of the battery module are realized through the above structural design.

[0063] See also Figures 1 to 12 , Embodiment 1 of the present utility model is:

[0064] A hidden vehicle-mounted mobile power source placed in a spare tire hub of a car comprises a fixing bolt 1, a fixing cover plate 2, a power conversion module 3, at least one battery module 4, a module base 5 and a fixing nut 6. The battery modules 4 are electrically connected to each other, and the power conversion module 3 is electrically connected to an adjacent battery module 1. The power conversion module 3 and the battery module 4 are combined together and placed in the module base 5. The fixing cover plate 2 is buckled on the top of the module base 5. The hidden vehicle-mounted mobile power source placed in the spare tire hub of the car is fixed in the accommodating cavity of the spare tire hub of the car by the fixing bolt 1 and the fixing nut 6.

[0065] The module base 5 includes a module base housing 501 and casters 502. The module base housing 501 is configured to fit the inside of the spare tire hub of the vehicle. The module base housing 501 is used to accommodate the power conversion module 3 and the battery module 4, and also has the function of protecting the power conversion module 3 and the battery module 4; the casters 502 are installed at the bottom of the module base housing 501, and are used to tow the vehicle-mounted mobile power supply for a short distance when used outside the vehicle.

[0066] The power conversion module 3 includes a power conversion module panel 301, a power conversion module control circuit board 302, a power conversion module control circuit board bracket 303, a power conversion module power conversion circuit board 304, a power conversion module power conversion circuit board bracket 305, and a power conversion module housing 306. The power conversion module power conversion circuit board bracket 305 is placed inside the power conversion module housing 306 and is firmly connected to the power conversion module housing 306. The power conversion module power conversion circuit board 304 is fixed to the power conversion module power conversion circuit board bracket 305 by screws. The power conversion module control circuit board bracket 303 is placed inside the power conversion module housing 306, located above the power conversion module power conversion circuit board 304, and is firmly connected to the power conversion module housing 306. The power conversion module control circuit board 302 is fixed to the power conversion module control circuit board bracket 303 by screws. The power conversion module panel 301 is installed on the top of the power conversion module housing 306 and is firmly connected to the power conversion module housing 306.

[0067] The power conversion module panel 301 is provided with a display screen 3011, function buttons 3012, an AC output socket 3013, a USB Type-C interface 3014, a DC12V car charger interface 3015, a USB Type-A interface 3016, a solar panel input interface 3017, a battery output interface 3018 and an AC input interface 3019.

[0068] The display screen 3011 is electrically connected to the power conversion module control circuit board 302 and is used to display system operating mode and system status information to the user.

[0069] The function button 3012 is electrically connected to the power conversion module control circuit board 302 and is used to set system parameters, system working mode and view system information.

[0070] The AC output socket 3013 is electrically connected to the power conversion circuit board 304 of the power conversion module, and is used to output AC power for use by electrical equipment.

[0071] The USB Type-C interface 3014 is electrically connected to the power conversion module control circuit board 302 and is used to provide a DC power supply corresponding to the protocol standard to the USB power-consuming device.

[0072] The DC12V car charger interface 3015 is electrically connected to the power conversion module power conversion circuit board 304. The DC12V car charger interface 3015 is a bidirectional power interface, which can be used as an output interface to provide power to electrical devices with a rated voltage of 12V; and can also be used as an input interface to charge the hidden vehicle-mounted mobile power supply placed in the spare tire hub of the vehicle through the DC12V car charger interface on the vehicle during driving.

[0073] The USB Type-A interface 3016 is electrically connected to the power conversion module control circuit board 302 and is used to provide a DC power supply corresponding to the protocol standard to the USB power-consuming device.

[0074] The solar panel input interface 3017 is electrically connected to the power conversion module power conversion circuit board 304, and is used to use the solar panel to charge the hidden vehicle-mounted mobile power source placed in the spare tire hub of the car.

[0075] The battery output interface 3018 is electrically connected to the power conversion module power conversion circuit board 304. The battery output interface 3018 is the battery voltage output of the battery module, which can provide a DC power supply for an external mobile power inverter, and can also be used as an expansion and cascade of the hidden vehicle-mounted mobile power supply placed in the spare tire hub of the car.

[0076] The AC input interface 3019 is electrically connected to the power conversion module power conversion circuit board 304 and is used to charge the hidden vehicle-mounted mobile power source placed in the spare tire hub of the car using the power grid.

[0077] The power conversion module control circuit board 302 is electrically connected to the display screen 3011, the function button 3012, the USB Type-C interface 3014 and the USB Type-A interface 3016 respectively, and the power conversion module control circuit board 302 is electrically connected to the power conversion module power conversion circuit board 304.

[0078] The power conversion module control circuit board 302 includes a DC / DC conversion module 3021, a display screen interface 3022, a USB Type-A conversion module 3023, a USB Type-C conversion module 3024, an MCU main control module 3025, a button detection module 3026, an IOT module 3027, a power conversion monitoring module 3028 and a power conversion control module 3029.

[0079] The DC / DC conversion module 3021 is electrically connected to the power conversion module power conversion circuit board 304, and is used to convert the electric energy transmitted from the power conversion module power conversion circuit board 304 into the electric energy required by each sub-module in the power conversion module control circuit board 302 to ensure its normal operation.

[0080] The display screen interface 3022 is electrically connected to the MCU main control module 3025 and the display screen 3011 respectively, and the MCU main control module 3025 sends display information to the display screen 3011 through the display screen interface 3022 .

[0081] The USB Type-A conversion module 3023 is electrically connected to the DC / DC conversion module 3021, the MCU main control module 3025 and the USB Type-A interface 3016. The USB Type-A conversion module 3023 can automatically identify the power consumption protocol of the USB power-consuming device connected to the USB Type-A interface 3016, and then convert the power energy transmitted by the DC / DC conversion module 3021 into power energy that complies with the corresponding power consumption protocol according to the corresponding power consumption protocol, and provide it to the USB power-consuming device connected to the USB Type-A interface 3016 for use.

[0082] The USB Type-C conversion module 3024 is electrically connected to the DC / DC conversion module 3021, the MCU main control module 3025 and the USB Type-A interface 3014. The USB Type-C conversion module 3024 can automatically identify the power consumption protocol of the USB power-consuming device connected to the USB Type-C interface 3014, and then convert the power energy transmitted by the DC / DC conversion module 3021 into power energy that complies with the corresponding power consumption protocol according to the corresponding power consumption protocol, and provide it to the USB power-consuming device connected to the USB Type-C interface 3016 for use.

[0083] The button detection module 3026 is electrically connected to the DC / DC conversion module 3021 , the MCU main control module 3025 and the function button 3012 respectively, and is used to detect whether the function button 3012 is pressed by the user.

[0084] The IOT module 3027 is electrically connected to the DC / DC conversion module 3021 and the MCU main control module 3025, respectively. The IOT module 3027 uses the WIFI technical solution in this example, but is not limited to the WIFI technical solution. When the user uses the APP remote control, the APP sends the instructions input by the user to the cloud server, and the IOT module 3027 obtains the instructions from the cloud server through WIFI, and sends the instructions to the MCU main control module 3025 after obtaining the instructions. After the MCU main control module 3025 receives the corresponding instructions, it controls the corresponding module to switch to the corresponding working mode according to the corresponding instructions. When the user uses the APP remote monitoring, the IOT module 3027 obtains the system working mode information and the system operation status and other information through the MCU main control module 3025, and sends the obtained system information to the cloud server through WIFI, and the cloud server sends the received system information to the user APP end for display.

[0085] The power conversion monitoring module 3028 is electrically connected to the DC / DC conversion module 3021, the MCU main control module 3025 and the power conversion circuit board 304 of the power conversion module respectively. The power conversion monitoring module 3028 monitors the working state of the power conversion circuit board 304 of the power conversion module in real time. Once the power conversion circuit board 304 of the power conversion module works abnormally (such as over-temperature, over-voltage, over-current, overload, short circuit, etc.), the power conversion monitoring module 3028 immediately sends a signal to the MCU main control module 3025. After receiving the abnormal working signal sent by the power conversion monitoring module 3028, the MCU main control module 3025 sends a shutdown or power conversion suspension instruction to the power conversion circuit board 304 of the power conversion module through the power conversion control module 3029, and commands the power conversion circuit board 304 of the power conversion module to shut down or suspend power conversion.

[0086] The power conversion control module 3029 is electrically connected to the DC / DC conversion module 3021, the MCU main control module 3025 and the power conversion circuit board 304 of the power conversion module. The power conversion control module 3029 receives instructions (such as power on, power off, start conversion, pause conversion, etc.) from the MCU main control module 3025, and controls the power conversion circuit board 304 of the power conversion module to enter the corresponding working mode after receiving the corresponding instructions.

[0087] The MCU main control module 3025 is electrically connected to other modules as a main control module. Specifically, the MCU main control module 3025 obtains power from the DC / DC conversion module 3021, starts initialization configuration, detects whether each module is working normally, and enters normal working state after the initialization configuration is completed and each module is detected to be working normally. In normal working state, the MCU main control module 3025 obtains the key information pressed by the user from the key detection module 3026, and then issues corresponding instructions to the corresponding module; the MCU main control module 3025 obtains the working state of the power conversion module power conversion circuit board 304 from the power conversion monitoring module 3028 in real time and sends it to the display screen 3011 through the display screen interface 3022 for display, and sends it to the cloud through the IOT module 3027, and then distributes it to the user APP for display. The MCU main control module 3025 detects and controls the USB Type-A conversion module 3023 in real time. Once it detects that its working state is abnormal (such as short circuit, overtemperature, overcurrent, etc.), it immediately issues a stop working instruction to it to stop working. Similarly, the MCU main control module 3025 detects and controls the USB Type-A conversion module 3024 in real time. Once it detects that its working state is abnormal (such as short circuit, over-temperature, over-current, etc.), it immediately sends a stop working instruction to it to stop working. The MCU main control module 3025 monitors the status of the key detection module 3026, the IOT module 3027 and the power conversion monitoring module 3028 in real time or the instructions sent, and sends corresponding instructions to the power conversion control module 3029, thereby controlling the power conversion module power conversion circuit board 304 to switch to the corresponding working mode, so as to achieve the function of protection, starting or stopping power conversion.

[0088] The power conversion module power conversion circuit board 304 is electrically connected to the AC output socket 3013, the DC12V car charging interface 3015, the solar panel input interface 3017, the battery output interface 3018, the AC input interface 3019, the power conversion module control circuit board 302 and the battery module 4 respectively.

[0089] The power conversion module power conversion circuit board 304 includes a bidirectional inverter module 3041, a bidirectional DC / DC conversion module 3042, an MPPT conversion module 3043, a DC / DC power supply module 3044, an MCU control module 3045 and a monitoring module 3046.

[0090] The DC / DC power supply module 3044 is electrically connected to the battery module 4, the MCU control module 3045 and the monitoring module 3046 respectively, and is used to convert the electric energy transmitted from the battery module 4 into electric energy suitable for the MCU control module 3045 and the monitoring module 3046 to ensure their normal operation.

[0091] The bidirectional inverter module 3041 is electrically connected to the AC output socket 3013, the AC input interface 3019, the battery module 4, the MCU control module 3045 and the monitoring module 3046 respectively.

[0092] The bidirectional inverter module 3041 has two working modes: an inverter mode and a charging mode. When the bidirectional inverter module 3041 works in the inverter mode, the bidirectional inverter module 3041 converts the electric energy transmitted from the battery module 4 into the mains electric energy, and supplies the electric appliances through the AC output socket 3013. When the bidirectional inverter module 3041 works in the charging mode, the bidirectional inverter module 3041 converts the mains electric energy transmitted from the AC input interface 3019 into the electric energy suitable for the battery module 4 to charge the battery module 4.

[0093] The bidirectional DC / DC conversion module 3042 is electrically connected to the DC12V vehicle charging interface 3015, the battery module 4, the MCU control module 3045 and the monitoring module 3046 respectively.

[0094] The bidirectional DC / DC conversion module 3042 has two working modes: output mode and charging mode. When the bidirectional DC / DC conversion module 3042 works in the output mode, the bidirectional DC / DC conversion module 3042 converts the electric energy transmitted from the battery module 4 into DC12V electric energy, and then outputs it through the DC12V car charger interface 3015 to provide power for electrical equipment with a rated voltage of 12V. When the bidirectional DC / DC conversion module 3042 works in the charging mode, the bidirectional DC / DC conversion module 3042 can convert the electric energy transmitted from the external power supply connected to the DC12V car charger interface 3015 into electric energy suitable for the battery module 4 to charge the battery module 4. For example, while driving, the DC12V car charger output interface on the car is connected to the DC12V car charger interface 3015 to charge the hidden vehicle-mounted mobile power supply placed in the spare tire hub of the car.

[0095] The MPPT conversion module 3043 is electrically connected to the solar panel input interface 3017, the battery module 4, the MCU control module 3045 and the monitoring module 3046 respectively, and is used to convert the solar energy connected to the solar panel input interface 3017 into electrical energy suitable for the battery module 4 to charge the battery module 4.

[0096] The MCU control module 3045 is electrically connected to other modules as a control module, and is electrically connected to the MCU main control module 3025 .

[0097] The MCU control module 3045 obtains instructions from the MCU main control module 3025, and controls the corresponding modules to switch to the corresponding working modes according to the corresponding instructions. For example, when the MCU main control module 3025 sends the "turn on AC output" instruction, the MCU control module 3045 will control the bidirectional inverter module 3041 to switch to the inverter mode to execute the "turn on AC output" instruction. When the MCU main control module 3025 sends the "turn on DC output" instruction, the MCU control module 3045 will control the bidirectional DC / DC conversion module 3042 to switch to the output mode to execute the "turn on DC output" instruction.

[0098] The MCU control module 3045 monitors in real time whether the working status of each module is normal through the monitoring module 3046. Once a module works abnormally (such as overtemperature, overcurrent, undervoltage, etc.), the MCU control module 3045 will control the corresponding module to stop working to protect the entire system.

[0099] The MCU control module 3045 sends the working mode and working status information of each module to the MCU main control module 3025 in real time. The MCU main control module 3025 then sends it to the display screen 3011 for display through the display screen interface 3022, and sends it to the cloud through the IOT module 3027, and then distributes it to the user APP for display.

[0100] The monitoring module 3046 is respectively electrically connected to the bidirectional inverter module 3041, the bidirectional DC / DC conversion module 3042, the MPPT conversion module 3043, the DC / DC power supply module 3044, the MCU control module 3045 and the power conversion monitoring module 3028. The monitoring module 3046 monitors the working status of the bidirectional inverter module 3041, the bidirectional DC / DC conversion module 3042 and the MPPT conversion module 3043 in real time, and feeds back the monitored status information to the MCU control module 3045 and the power conversion monitoring module 3028 in real time.

[0101] The battery module 4 includes a battery module cover 401, a battery pack 402, a BMS circuit board 403 and a battery module housing 404. The BMS circuit board 403 is fixed to the bottom of the battery pack 402 with screws and is electrically connected to the battery pack 402. The battery pack 402 is placed inside the battery module housing 404 and is firmly connected to the battery module housing 404. The battery module cover 401 is buckled on the upper end of the battery module housing 404 and is firmly connected to the battery module housing 404. The battery pack 402 is electrically connected to the BMS circuit board 403.

[0102] The battery pack 402 is composed of a plurality of battery cells connected in series and in parallel, and is used to store electric energy, wherein the battery cells may be lead-acid batteries, lithium batteries or other chemical batteries, and in this example, lithium batteries are used for explanation.

[0103] The BMS circuit board 403 includes an AFE module 4031 , a charging control module 4032 , an MCU module 4033 , a discharging control module 4034 , and a collision detection sensor 4035 . The BMS circuit board 403 is used to protect and manage the battery pack 402 .

[0104] The AFE module 4031 is electrically connected to the battery pack 402 and the MCU module 4033. The AFE module 4031 is used to collect the cell voltage and temperature parameters of the battery pack 402 in real time.

[0105] The charging control module 4032 is electrically connected to the battery pack 402, the MCU module 4033 and the power conversion module 3. The charging control module 4032 is used to control the connection and disconnection of the charging circuit according to the instruction of the MCU module 4033.

[0106] The discharge control module 4034 is electrically connected to the battery pack 402, the MCU module 4033 and the power conversion module 3. The discharge control module 4034 is used to control the connection and disconnection of the discharge circuit according to the instruction of the MCU module 4033.

[0107] The collision detection sensor 4035 is electrically connected to the MCU module 4033. The collision detection sensor 4035 detects in real time whether the vehicle has collided, and once the collision is detected, a collision signal is immediately sent to the MCU module 4033.

[0108] The MCU module 4033 is electrically connected to the AFE module 4031, the charging control module 4032, the discharging control module 4034 and the collision detection sensor 4035. The MCU module 4033 reads the cell voltage and temperature parameters of the battery pack 402 collected by the AFE module 4031 in real time, and controls the connection and disconnection of the charging control module 4032 and the discharging control module 4034 according to the obtained parameters, so as to achieve the purpose of protecting and managing the battery pack 402. Specifically, when the MCU module 4033 reads that the cell voltage collected by the AFE module 4031 is equal to the minimum discharge voltage threshold of the cell, the MCU module 4033 will control the discharging control module 4034 to disconnect the discharging circuit, so that the battery pack 402 stops discharging to the outside, so as to avoid irreversible damage caused by excessive discharge of the battery pack 402. When the MCU module 4033 reads that the cell voltage collected by the AFE module 4031 is equal to the highest charging voltage threshold of the cell, the MCU module 4033 will control the charging control module 4032 to disconnect the charging circuit so that the external current cannot charge the battery pack 402, so as to avoid irreversible damage caused by overcharging of the battery pack 402. When the MCU module 4033 reads that the temperature value of the battery pack 402 collected by the AFE module 4031 exceeds the temperature range in which it can work normally, the MCU module 4033 will simultaneously control the charging control module 4032 and the discharging control module 4034 to disconnect the circuit so that the battery pack 402 stops charging and discharging to avoid irreversible damage or accidents to the battery pack 402. The MCU module 4033 reads the collision detection sensor 4035 in real time. Once a collision is detected, the MCU module 4033 will simultaneously control the charging control module 4032 and the discharging control module 4034 to disconnect the circuit so that the battery pack 402 stops charging and discharging to avoid accidents to the battery pack 402.

[0109] In summary, the utility model provides a hidden vehicle-mounted mobile power source placed in the spare tire hub of a car, and the vehicle-mounted mobile power source is placed in the accommodating cavity of the spare tire hub of the car; in this way, the existing space in the car can be fully utilized. It can power necessary household appliances when going out for fun, and does not need to occupy additional storage space in the car. In addition, universal casters are installed at the bottom of the mobile power source, so that when the household appliance use environment is far from the parking area, the mobile power source can be taken out of the spare tire hub and dragged to the household appliance use environment for use. Users can choose different configurations according to their own needs. In this way, it can meet the diverse needs of users and reduce unnecessary expenses of users.

[0110] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A hidden vehicle-mounted mobile power source placed in a spare tire hub of a car, wherein the spare tire hub of the car has a receiving cavity formed by an inward depression, and one end of the receiving cavity has an opening, wherein: The vehicle-mounted mobile power source extends from the opening end into the wheel hub of the spare tire of the vehicle and is installed in the accommodating cavity.

2. A hidden vehicle-mounted mobile power source placed in the wheel hub of a spare tire of a car according to claim 1, characterized in that: The vehicle-mounted mobile power source does not protrude from the edge of the opening of the accommodating cavity.

3. The hidden vehicle-mounted mobile power source placed in the wheel hub of a spare tire of a car according to claim 2, characterized in that: The bottom surface of the corresponding accommodating cavity of the spare tire hub of the automobile is provided with a mounting hole, and the vehicle-mounted mobile power supply comprises a fixing bolt, a fixing cover plate, a power conversion module, a battery module, a module base and a fixing nut; the module base is provided with a cavity with an opening at one end and the cavity can accommodate a battery module and a power conversion module, and the power conversion module is electrically connected to the battery module; the fixing cover plate is covered at the opening of the module base to close the opening; the fixing bolt passes through the fixing cover plate, the module base and the mounting hole in sequence and is connected with the fixing nut so that the vehicle-mounted mobile power supply is fixedly installed in the accommodating cavity of the spare tire hub of the automobile.

4. The hidden vehicle-mounted mobile power source placed in the wheel hub of a spare tire of a car according to claim 3, characterized in that: Casters are installed at the bottom of the module base.

5. The hidden vehicle-mounted mobile power source placed in the wheel hub of a spare tire of a car according to claim 3, characterized in that: The fixed cover plate is provided with a towing handle.

6. The hidden vehicle-mounted mobile power source placed in the wheel hub of a spare tire of a car according to claim 3, characterized in that: The power conversion module comprises a power conversion module panel, a power conversion module control circuit board, a power conversion module control circuit board bracket, a power conversion module power conversion circuit board, a power conversion module power conversion circuit board bracket and a power conversion module housing; The power conversion circuit board bracket of the power conversion module is placed inside the power conversion module housing and is clamped and fixed to the power conversion module housing; the power conversion circuit board of the power conversion module is fixed to the power conversion circuit board bracket of the power conversion module with screws; the power conversion module control circuit board bracket is placed inside the power conversion module housing and is located above the power conversion circuit board of the power conversion module and is clamped and fixed to the power conversion module housing; the power conversion module control circuit board is fixed to the power conversion module control circuit board bracket with screws; the power conversion module panel is installed on the top of the power conversion module housing and is clamped and fixed to the power conversion module housing.

7. The hidden vehicle-mounted mobile power source placed in the wheel hub of a spare tire of a car according to claim 6, characterized in that: The power conversion module panel includes a display screen, function buttons, an AC output socket, a USB Type-C interface, a DC12V car charger interface, a USB Type-A interface, a solar panel input interface, a battery output interface and an AC input interface; The display screen, function buttons, USB Type-C interface and USB Type-A interface are electrically connected to the power conversion module control circuit board respectively; The AC output socket, DC12V car charging interface, solar panel input interface, battery output interface and AC input interface are electrically connected to the power conversion circuit board of the power conversion module respectively.

8. The hidden vehicle-mounted mobile power source placed in the wheel hub of a spare tire of a car according to claim 3, characterized in that: The battery module comprises a battery module cover, a battery pack, a BMS circuit board and a battery module housing; The BMS circuit board is fixed under the battery pack with screws and is electrically connected to the battery pack; the battery pack is placed inside the battery module shell and is clamped and fixed to the battery module shell; the battery module cover is buckled on the upper end of the battery module shell and is clamped and fixed to the battery module shell.

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