Inflation pump apparatus and multifunctional device

Abstract

An inflation pump apparatus (11000) and a multifunctional device. The inflation pump apparatus (11000) comprises an energy storage group (1100), a power supply connection end (1200), and an inflation pump (1300), wherein the power supply connection end (1200) is connected to an external power supply, the inflation pump (1300) is connected to the energy storage group (1100) and the power supply connection end (1200), and the energy storage group (1100) and / or the external power supply can be used for supplying power to the inflation pump (1300).

Description

Air pump devices and multifunctional equipment

[0001] Priority information

[0002] This application claims priority and benefits of patent applications with patent application numbers 202311204255.5, 202322522175.6, 202311203623.4, and 202322529063.3 filed with the State Intellectual Property Office of China on September 15, 2023, and the entire text of which is incorporated herein by reference. Technical Field

[0003] The present application relates to the technical field of air pumps, and more specifically, to an air pump device and a multifunctional device. Background Art

[0004] In the related art, the air pump is generally connected to the cigarette lighter port of the car, and the air pump is powered by the power supply of the car. In this way, a long wire needs to be pulled when powering the air pump, which is inconvenient to use.

[0005] Summary of the Invention

[0006] Embodiments of the present application provide an air pump device and a multifunctional device.

[0007] The air pump device of the embodiment of the present application includes an energy storage group, a power connection end and an air pump, the power connection end is used to connect to an external power supply, the air pump is connected to the energy storage group and the power connection end, and the energy storage group and / or the external power supply can be used to power the air pump.

[0008] In the air pump device of the embodiment of the present application, the energy storage group is the power source provided inside the air pump device, and the power connection end is used to connect to the power source outside the air pump device. Both the energy storage group and the external power source can be used to power the air pump. The internal power source and the external power source can each power the air pump independently, or they can power the air pump simultaneously. Compared to the power supply method of connecting the air pump to the cigarette lighter port on the car, powering the air pump through the internal power source does not require pulling a long wire, and is more convenient to operate and use.

[0009] In some embodiments, the external power source connected to the power connection end includes at least a car battery, and the car battery is used to connect to the power connection end through a car cigarette lighter, or the car battery is connected to the power connection end.

[0010] In some embodiments, the energy storage group can be used to power the air pump. When the power connection end is connected to the external power supply, the energy storage group and / or the external power supply can be used to power the air pump.

[0011] In some embodiments, the air pump device further includes a charging module, which is disposed between the energy storage group and the power connection end. An external power source connected to the power connection end can be used to charge the energy storage group through the charging module.

[0012] In some embodiments, the air pump device further includes a controller, wherein a control end of the controller is used to connect to a controlled end of the air pump, and the controller is used to control the start or stop of the air pump.

[0013] In some embodiments, the air pump device further includes a detection module, which is used to detect the voltage of the energy storage group and the voltage of the power connection end, and the controller is used to control the start or stop of the air pump according to the detection results of the detection module.

[0014] In certain embodiments, when the detection module detects that the voltage of the energy storage group is greater than a first preset voltage, the controller can be used to control the air pump to start, and enable the energy storage group to power the air pump.

[0015] In certain embodiments, when the detection module detects that the voltage at the power connection terminal is greater than a second preset voltage, the controller can be used to control the start-up of the air pump and enable the external power supply connected to the power connection terminal to power the air pump.

[0016] In certain embodiments, when the detection module detects that the voltage of the energy storage group is less than a first preset voltage and the voltage of the power connection terminal is less than a second preset voltage, the controller can be used to control the air pump to stop.

[0017] In some embodiments, the air pump device further includes a control button, which, when triggered, sends a button trigger signal to the controller, so that the controller can be used to control the start or stop of the air pump.

[0018] In some embodiments, the air pump device further includes a switch component, and the controller is configured to control the start or stop of the air pump by controlling the on or off state of the switch component.

[0019] In certain embodiments, the air pump device further includes a load connection terminal, wherein the load connection terminal is used to connect a load, and the load includes at least one of a starting device and a car battery.

[0020] The multifunctional device of an embodiment of the present application includes an air pump, a load connection terminal and an energy storage module. The load connection terminal is used to connect to a load, and the load includes at least one of a starting device and a car battery. The energy storage module can be used to power the air pump and / or the load connection terminal.

[0021] In certain embodiments, the multifunctional device further includes a controller, and the controller is configured to control the energy storage module to supply power to the air pump and / or the load connection terminal.

[0022] In some embodiments, the multifunctional device further includes an energy storage module detection circuit, which is used to detect the voltage of the energy storage module; when the voltage detected by the energy storage module detection circuit is less than a first preset voltage, the controller is used to control the energy storage module to stop supplying power.

[0023] In some embodiments, the multifunctional device further includes an alarm circuit, and when the voltage detected by the energy storage module detection circuit is less than a first preset voltage, the alarm circuit is configured to send an alarm signal.

[0024] In some embodiments, the multifunctional device further includes a load detection circuit, which is used to detect electrical parameters of the load connection terminal. When the voltage detected by the energy storage module detection circuit is greater than a first preset voltage, the controller is used to determine a corresponding working mode based on the detection result of the load detection circuit, and control the power supply of the energy storage module to the load connection terminal based on the corresponding working mode.

[0025] In certain embodiments, when the voltage detected by the load detection circuit is greater than a second preset voltage, the controller can also be used to control the power supply of the energy storage module to the load connection terminal in a preset working mode.

[0026] In some embodiments, the preset working mode specifically includes: when the voltage detected by the load detection circuit is greater than the second preset voltage, the controller is further used to control the energy storage module to supply power to the load connection terminal within a first preset time.

[0027] In some embodiments, the load detection circuit is further configured to detect a current at the load connection terminal, and the controller is further configured to control the power supply of the energy storage module to the load connection terminal based on the current detected by the load detection circuit.

[0028] In some embodiments, after the first preset time, if the current detected by the load detection circuit is less than a preset current, the controller is further configured to control the energy storage module to stop supplying power to the load connection terminal.

[0029] In some embodiments, after the first preset time, if the current detected by the load detection circuit is greater than a preset current, the controller is further configured to control the energy storage module to continue supplying power to the load connection terminal.

[0030] In some embodiments, within a second preset time after the energy storage module stops supplying power to the load connection terminal, if the voltage detected by the load detection circuit is less than a third preset voltage, the controller is further configured to exit the preset working mode.

[0031] In some embodiments, if the voltage detected by the load detection circuit is greater than a third preset voltage within a second preset time after the energy storage module stops supplying power to the load connection terminal, the controller is further configured to control the energy storage module to supply power to the load connection terminal within the first preset time again after the second preset time.

[0032] In some embodiments, the multifunctional device further includes a control button module, which is used to control the energy storage module to supply / stop supplying power to the air pump and / or the load connection terminal.

[0033] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0035] FIG1 is a schematic diagram showing the connection between an air pump device and an external power supply according to an embodiment of the present application;

[0036] FIG2 is a circuit diagram of a partial circuit structure of an air pump device according to an embodiment of the present application;

[0037] FIG3 is a schematic diagram of an air pump device according to an embodiment of the present application;

[0038] FIG4 is a circuit diagram of a partial circuit structure of an air pump device according to an embodiment of the present application;

[0039] FIG5 is a circuit diagram of a partial circuit structure of an air pump device according to an embodiment of the present application;

[0040] FIG6 is a circuit diagram of a partial circuit structure of an air pump device according to an embodiment of the present application;

[0041] FIG7 is a schematic diagram of a multifunctional device according to an embodiment of the present application;

[0042] FIG8 is a circuit diagram of a partial circuit structure of a multifunctional device according to an embodiment of the present application;

[0043] 9 is a circuit diagram of a partial circuit structure of a multifunctional device according to an embodiment of the present application;

[0044] FIG10 is a schematic diagram of a multifunctional device according to an embodiment of the present application;

[0045] 11 is a circuit diagram of a partial circuit structure of a multifunctional device according to an embodiment of the present application;

[0046] FIG12 is a circuit diagram of a partial circuit structure of a multifunctional device according to an embodiment of the present application. DETAILED DESCRIPTION

[0047] The embodiments of the present application are described in detail below. The embodiments of the present application are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be understood as limiting the present application.

[0048] In the related art, the air pump is generally connected to the cigarette lighter port of the car, and the air pump is powered by the power supply of the car. In this way, a long wire needs to be pulled when powering the air pump, which is inconvenient to use.

[0049] Please refer to Figure 1. An embodiment of the present application provides an air pump device 11000, including an energy storage group 1100, a power connection terminal 1200 and an air pump 1300. The power connection terminal 1200 is used to connect to an external power supply. The air pump 1300 is connected to the energy storage group 1100 and the power connection terminal 1200. The energy storage group 1100 and / or the external power supply can be used to power the air pump 1300.

[0050] Specifically, the energy storage group 1100 is the power source inside the air pump device 11000, including at least one of a battery pack and a capacitor pack. The battery pack can be a lithium battery pack or other storage battery pack. BAT+ in Figure 2 can be used to connect to the positive pole of the energy storage group 1100. The power connection terminal 1200 can be the connector J1 in Figure 2, which can be connected to the external power supply of the air pump device 11000. Pin 1 of the connector J1 is connected to the positive pole of the external power supply, and pins 2 and 3 of the connector J1 are connected to the negative pole of the external power supply. The connector J2 in Figure 2 can be used to connect the air pump 1300, so that the air pump 1300 is connected to the energy storage group 1100 and the power connection terminal 1200. The energy storage group 1100 can supply power to the air pump 1300, and the external power supply can also supply power to the air pump 1300 through the power connection terminal 1200.

[0051] In this way, the energy storage group 1100 can power the air pump 1300. The internal power supply and the external power supply can each power the air pump 1300 independently or simultaneously. The air pump 1300 does not need to be connected to an external power supply. When operating, the air pump 1300 does not need to be connected to the cigarette lighter port on the car. Instead, the air pump 1300 is powered by the internal power supply, eliminating the need for a long power cord and making it more convenient to operate.

[0052] In some embodiments, the external power source connected to the power connection terminal 1200 includes at least a car battery, and the car battery is used to connect to the power connection terminal 1200 through a car cigarette lighter, or the car battery is connected to the power connection terminal.

[0053] Specifically, the car battery can be the power source of the car, and the car cigarette lighter on the car can be used as an interface for the car power supply to supply power to the outside. The power connection terminal 1200 can be connected to the car cigarette lighter, so that the car battery is connected to the power connection terminal 1200, and the car battery provides power to the air pump device 11000. The car battery can also be connected to the power connection terminal 1200 in other ways to provide power to the air pump device 11000. When the energy storage group 1100 is insufficient in power, the power connection terminal 1200 can be connected to the car cigarette lighter so that the car battery supplies power to the air pump 1300, or the car battery can be directly connected to the power connection terminal 1200 to supply power to the air pump 1300, ensuring that the air pump 1300 can still be used normally when the energy storage group 1100 is insufficient in power.

[0054] In this way, when the energy storage group 1100 is out of power, the car battery can supply power to the air pump 1300, so that the air pump 1300 can be used normally.

[0055] In some embodiments, the energy storage group 1100 can be used to power the air pump 1300 . When the power connection terminal 1200 is connected to an external power source, the energy storage group 1100 and / or the external power source can be used to power the air pump 1300 .

[0056] Specifically, the power supply provided by the energy storage group 1100 to the air pump 1300 and the power supply provided by the external power supply connected to the power connection terminal 1200 to the air pump 1300 are independent of each other. The energy storage group 1100 can power the air pump 1300, and the external power supply can power the air pump 1300. When the energy storage group 1100 has sufficient energy and the power connection terminal 1200 is connected to the external power supply, the energy storage group 1100 and the external power supply can each independently power the air pump 1300, or the energy storage group 1100 and the external power supply can simultaneously power the air pump 1300.

[0057] In this way, the energy storage group 1100 and the external power supply can both serve as power sources for the air pump 1300, and the energy storage group 1100 and the external power supply are independent of each other.

[0058] Referring to Figure 3, in some embodiments, the air pump device 11000 further includes a charging module, which is disposed between the energy storage group 1100 and the power connection terminal 1200. An external power source connected to the power connection terminal 1200 can be used to charge the energy storage group 1100 via the charging module. Specifically, the external power source connected to the power connection terminal 1200 not only powers the air pump 1300 but also charges the energy storage group 1100. The external power source can be connected to the charging module via the power connection terminal 1200. The charging module can be a charging device corresponding to the energy storage group 1100. For example, if the energy storage group 1100 is a lithium battery pack, the charging module can be a charger corresponding to such a lithium battery pack. The external power source connected to the charging module enables the charging module to charge the energy storage group 1100. Even when the air pump 1300 is not operating, the charging module can still provide power to the energy storage group 1100. When the energy storage group 1100 has sufficient power, the endurance of the air pump device is greatly improved.

[0059] In this way, the external power supply can charge the energy storage group 1100 to improve the endurance of the air pump device during operation.

[0060] Please refer to FIG. 3 . In some embodiments, the air pump device 11000 further includes a controller 1400 . The control end of the controller 1400 is used to connect to the controlled end of the air pump 1300 . The controller 1400 is used to control the start or stop of the air pump 1300 .

[0061] Specifically, controller 1400 can be U2 in Figure 4. The AIR_EN signal output by U2 can be used to control the start or stop of air pump 1300, and air pump 1300 can be connected to J2 in Figure 2. Assume that a high level of the AIR_EN signal controls the start of air pump 1300, and a low level of the AIR_EN signal controls the stop of air pump 1300. When controller 1400 controls air pump 1300 to start, the AIR_EN signal is high, causing Q1 in Figure 2 to conduct, causing pins 3 and 4 of J2 to be grounded, and pins 1 and 2 of J2 to be high. At this time, the air pump 1300 connected to J2 starts. When controller 1400 controls air pump 1300 to stop, the AIR_EN signal is low, causing Q1 in Figure 2 to be turned off, so that pins 3 and 4 of J2 cannot be grounded, and the air pump 1300 connected to J2 stops.

[0062] In this way, the controller 1400 can control the air pump 1300 to start or stop.

[0063] Please refer to Figure 3. In some embodiments, the air pump device 11000 also includes a detection module 1500, which is used to detect the voltage of the energy storage group 1100 and the voltage of the power connection terminal 1200. The controller 1400 is used to control the start or stop of the air pump 1300 according to the detection results of the detection module 1500.

[0064] Specifically, the detection module 1500 can be connected to the controller 1400 through the BAT_VSN terminal and the IN_VSN terminal in Figure 5. The energy storage group 1100 is connected in series with the resistor R5 and the resistor R7, and the voltage at the BAT_VSN terminal is the divided voltage of the resistor R7. Therefore, the voltage of the energy storage group 1100 can be detected by the voltage at the BAT_VSN terminal. The power connection terminal 1200 is connected in series with the resistor R4 and the resistor R6. The voltage at the IN_VSN terminal is the divided voltage of the resistor R6. Therefore, the voltage of the power connection terminal 1200 can be detected by the voltage at the IN_VSN terminal. The controller 1400 outputs the AIR_EN signal to control the start or stop of the air pump 1300 based on the voltages at the BAT_VSN terminal and the IN_VSN terminal. The voltage of the energy storage group 1100 and the voltage of the power connection terminal 1200 can both be used as the power supply voltage of the air pump 1300. The detection module 1500 can determine whether the power supply voltage of the air pump is sufficient by detecting the voltage of the energy storage group 1100 and the voltage of the power connection terminal 1200. When the detection module 1500 detects that the power supply voltage of the air pump 1300 is not sufficient, the controller 1400 controls the air pump to stop working. When the detection module 1500 detects that the power supply voltage of the air pump 1300 is sufficient, the controller 1400 controls the air pump to start working.

[0065] In this way, the detection module 1500 can detect the voltage of the energy storage group 1100 and the voltage of the power connection terminal 1200, and the controller 1400 can determine whether the power supply voltage of the air pump 1300 is sufficient based on the detection results of the detection module 1500 to control the air pump 1300 to start or stop.

[0066] In some embodiments, when the detection module 1500 detects that the voltage of the energy storage group 1100 is greater than a first preset voltage, the controller 1400 can be used to control the air pump 1300 to start and enable the energy storage group 1100 to power the air pump 1300 .

[0067] Specifically, controller 1400 in Figure 4 detects the voltage of energy storage group 1100 via the BAT_VSN terminal. When the voltage of energy storage group 1100 is less than a first preset voltage, it can be assumed that the voltage of energy storage group 1100 is insufficient to power air pump 1300. On the other hand, when the voltage of energy storage group 1100 is greater than the first preset voltage, it can be assumed that the voltage of energy storage group 1100 is sufficient to power air pump 1300. Controller 1400 can control air pump 1300 to start, allowing energy storage group 1100 to serve as the power source for air pump 1300.

[0068] In this way, when the voltage of the energy storage group 1100 is greater than the first preset voltage, the voltage of the energy storage group 1100 is sufficient to power the air pump 1300, and the controller 1400 can control the air pump 1300 to start, and the energy storage group 1100 powers the air pump 1300.

[0069] In some embodiments, when the detection module 1500 detects that the voltage of the power connection terminal 1200 is greater than a second preset voltage, the controller 1400 can be used to control the start-up of the air pump 1300 and enable the external power supply connected to the power connection terminal 1200 to power the air pump 1300.

[0070] Specifically, controller 1400 in FIG4 detects the voltage of power connection terminal 1200 via terminal IN_VSN. When the voltage of power connection terminal 1200 is less than a second preset voltage, it can be assumed that the external power supply voltage is insufficient to power air pump 1300. On the other hand, when the voltage of power connection terminal 1200 is greater than the second preset voltage, it can be assumed that the external power supply voltage is sufficient to power air pump 1300. Controller 1400 can control air pump 1300 to start, allowing energy storage group 1100 to serve as the power source for air pump 1300.

[0071] In this way, when the voltage of the power connection terminal 1200 is greater than the second preset voltage, the connected external power supply voltage is sufficient to power the air pump 1300, and the controller 1400 can control the air pump 1300 to start, and the air pump 1300 is powered by the external power supply.

[0072] In some embodiments, when the detection module 1500 detects that the voltage of the energy storage group 1100 is less than a first preset voltage and the voltage of the power connection terminal 1200 is less than a second preset voltage, the controller 1400 can be used to control the air pump 1300 to stop working.

[0073] Specifically, in FIG4 , controller 1400 detects the voltage of energy storage group 1100 via BAT_VSN terminal and detects the voltage of energy storage group 1100 via IN_VSN terminal. When the voltage of energy storage group 1100 is less than a first preset voltage and the voltage of power connection terminal 1200 is less than a second preset voltage, it can be considered that the voltage of energy storage group 1100 is insufficient to power air pump 1300, and the voltage of the external power supply is also insufficient to power air pump 1300. At this time, air pump 1300 has no power source, air pump 1300 cannot operate, and controller 1400 cannot control air pump 1300 to operate. When the voltage of the energy storage group 1100 is greater than the first preset voltage and the voltage of the power connection terminal 1200 is greater than the second preset voltage, it can be considered that the voltage of the energy storage group 1100 and the voltage of the power connection terminal 1200 are sufficient to power the air pump 1300. At this time, the energy storage group 1100 and the external power supply can both serve as power sources for the air pump 1300. One of the energy storage group 1100 and the external power supply can power the air pump 1300, or both can power the air pump 1300 at the same time. The controller 1400 can control the start of the air pump 1300.

[0074] Thus, when the voltage of the energy storage group 1100 is less than the first preset voltage and the voltage of the power connection terminal 1200 is less than the second preset voltage, the air pump 1300 does not have sufficient power supply voltage, the air pump 1300 cannot operate, and the controller 1400 cannot control the air pump 1300 to start. However, when the voltage of the energy storage group 1100 is greater than the first preset voltage and the voltage of the power connection terminal 1200 is greater than the second preset voltage, both the energy storage group 1100 and the external power supply can serve as the power supply for the air pump 1300, and the controller 1400 can control the air pump 1300 to start.

[0075] Please refer to Figure 3. In some embodiments, the air pump device 11000 also includes a control button 1600. When the control button 1600 is triggered, it sends a button trigger signal to the controller 1400, so that the controller 1400 can be used to control the air pump 1300 to start or stop.

[0076] Specifically, the control button 1600 can be the button S1 in Figure 4. When the voltage of the energy storage group 1100 is greater than the first preset value or the voltage of the power connection terminal 1200 is greater than the second preset value, pins 1 and 2 of J2 in Figure 2 are connected to a high level. At this time, pressing the button S1 causes the AIR_EN signal output by the controller 1400 to turn on Q1 in Figure 2, and pins 3 and 4 of J2 are grounded, so that a voltage difference is generated between pins 1 and 2 and pins 3 and 4 of J2. J2 is connected to the air pump 1300 to start the air pump 1300. When the air pump 1300 is started, pressing the button S1 again causes the AIR_EN signal output by the controller 1400 to turn off Q1 in Figure 2, and pins 3 and 4 of J2 cannot be grounded, so that the air pump 1300 stops.

[0077] In this way, the air pump 1300 can be started or stopped by controlling the button 1600 .

[0078] In some embodiments, the air pump device 11000 further includes a switch component, and the controller 1400 is configured to control the start or stop of the air pump 1300 by controlling the on or off state of the switch component.

[0079] Specifically, the switch component can be the MOS transistor Q1 in Figure 2. When the AIR_EN signal output by the controller 1400 is at a high level, the transistor Q1 is turned on, grounding pins 3 and 4 of J2. When the external power supply is connected to the power connection terminal 1200, pins 1 and 2 of J2 are connected to a high level, creating a voltage difference between pins 1 and 2 and pins 3 and 4 of J2. Connecting J2 to the air pump 1300 can start the air pump 1300. When the AIR_EN signal output by the controller 1400 is at a low level, the transistor Q1 is turned off, preventing pins 3 and 4 of J2 from being grounded, and the air pump 1300 connected to J2 stops.

[0080] In this way, the controller 1400 can control the start or stop of the air pump 1300 by controlling the on or off of the switch component.

[0081] Please refer to FIG. 3 . In some embodiments, the air pump device 11000 further includes a voltage stabilizing circuit.

[0082] Specifically, the voltage stabilizing circuit may be the voltage stabilizing chip U1 in FIG. 6 , the voltage of the energy storage group 1100 may be connected to the voltage stabilizing chip U1 , and the voltage stabilizing chip U1 outputs a stable voltage for powering the controller 1400 in FIG. 4 .

[0083] In some embodiments, the air pump device 11000 further includes a load connection terminal, which is used to connect a load, wherein the load includes at least one of a starting device and a car battery.

[0084] Specifically, the power supply connected to the energy storage group 1100 and the power connection terminal 1200 can supply power to the load connected to the load connection terminal. The energy storage group 1100 and the power supply connected to the power connection terminal 1200 can serve as a common power source for the air pump 1300 and the load, and can supply power to the connected load and the air pump 1300. The energy storage group 1100 can supply power to the air pump 1300 or one of the external loads separately, or it can supply power to the air pump 1300 and the external load at the same time. The power supply connected to the power connection terminal 1200 can supply power to the air pump 1300 or one of the external loads separately, or it can supply power to the air pump 1300 and the external load at the same time. The external power supplies of the energy storage group 1100 and the power supply connected to the power connection terminal 1200 are independent of each other.

[0085] The electrical energy in the starting device and the car battery is used to start the car. If the electrical energy in the starting device and the car battery is insufficient, the car will not start properly. The load connection terminal can be connected to the car's battery or starting device. The energy storage group 1100 in the air pump device 11000 or the power source connected to the power connection terminal 1200 can output electrical energy to the car's battery or starting device through the load connection terminal, allowing the car to start properly.

[0086] In this way, air pump device 11000 also achieves compatibility with both the power source of air pump 1300 and a mobile power bank, integrating the functions of air pump 1300 and a mobile power bank into a single product. This reduces the footprint of the vehicle-mounted device and makes it more convenient to use and carry. Air pump device 11000 can also serve as a starting power source for a vehicle, powering a vehicle battery or a starting device to start the vehicle.

[0087] The air pump device 11000 of the embodiment of the present application includes an energy storage group 1100, a power connection terminal 1200 and an air pump 1300. The power connection terminal 1200 is used to connect to an external power source. The air pump 1300 is connected to the energy storage group 1100 and the power connection terminal 1200. The energy storage group 1100 and / or the external power source can be used to power the air pump 1300. In the air pump device 11000 provided in the present application, the internal power supply and the external power supply can each independently power the air pump 1300, or can simultaneously power the air pump 1300. Compared to the power supply method of connecting the air pump 1300 to the cigarette lighter port on the car, powering the air pump 1300 through the internal power supply does not require pulling a long line, and is more convenient to operate and use.

[0088] In the relevant technical field, the air pump and the car's starting power supply are two independent products. Car owners generally need to keep these two products in the car as standby, which increases the floor space occupied and is inconvenient to use and carry.

[0089] Please refer to Figure 7. An embodiment of the present application provides a multifunctional device, including an air pump 2300, a load connection terminal 2200 and an energy storage module 2100. The load connection terminal 2200 is used to connect a load, and the load includes at least one of a starting device and a car battery. The energy storage module 2100 can be used to power the air pump 2300 and / or the load connection terminal 2200.

[0090] Specifically, the energy storage module 2100 is a power source provided inside the multifunctional device, and the positive and negative poles of the energy storage module 2100 may be BAT+ and BAT- in FIG8 . The load connection terminal 2200 is used to connect a load, and the positive and negative poles of the load connection terminal 2200 may be CAR+ and CAR- in FIG8 , and the connector J2 in FIG9 may be used to connect an air pump 2300. The energy storage module 2100 serves as a common power source for the air pump 2300 and the load connection terminal 2200, and can supply power to the connected load and the air pump 2300. The energy storage module 2100 can supply power to the air pump 2300 or one of the loads separately, or it can supply power to the air pump 2300 and the load at the same time. The multifunctional device can supply power to an external load through the load connection terminal 2200, meeting the needs of being a mobile power source, while also having the function of an air pump 2300.

[0091] In this way, the multifunctional device achieves compatibility with the power supply of the air pump 2300 and the mobile power supply, integrating the functions of the air pump 2300 and the mobile power supply into one product, reducing the area occupied by the vehicle-mounted equipment, and making it more convenient to use and carry.

[0092] Specifically, the energy in both the starting device and the car battery can be used to start the car. If the energy in either the starting device or the car battery is insufficient, the car will not start properly. Load connection terminal 2200 can be connected to the car's battery or starting device. Energy storage module 2100 in the multifunctional device outputs energy to the car's battery or starting device via load connection terminal 2200, enabling the car to start properly.

[0093] In this way, the multifunctional device can be used as a starting power source for the car, and is used to power the car battery or the starting device to start the car.

[0094] Please refer to FIG. 10 . In some embodiments, the multifunctional device further includes a controller 2400 . The controller 2400 is configured to control the energy storage module 2100 to supply power to the air pump 2300 and / or the load connection terminal 2200 .

[0095] Specifically, controller 2400 can be controller U2 in Figure 11. Controller U2 can control the power supply from energy storage module 2100 to air pump 2300 by outputting a control signal, and can also control the power supply from energy storage module 2100 to load connection terminal 2200 by outputting a control signal. When controller U2 controls the power supply from energy storage module 2100 to air pump 2300, controller U2 controls switch Q2 in Figure 9 by outputting a voltage from the AIR_EN terminal, causing Q2 to turn on and grounding pins 3 and 4 of connector J2. The voltage connected to pins 1 and 2 of the connector creates a voltage difference with pins 3 and 4, and the connector is connected to air pump 2300, causing air pump 2300 to operate, and energy storage module 2100 can power air pump 2300. When the controller U2 controls the energy storage module 2100 to supply power to the load connection terminal 2200, the controller U2 controls the switch tube Q1 in Figure 8 to turn on through the RELAY_EN terminal output voltage, thereby controlling the switch K1 to close, so that the positive electrode BAT+ of the energy storage module 2100 is connected to the positive electrode CAR+ of the load connection terminal 2200, and the energy storage module 2100 can supply power to the load connection terminal 2200.

[0096] In this way, the controller 2400 can control the energy storage module 2100 to supply power to the air pump 2300 and / or the load connection terminal 2200 .

[0097] Please refer to Figure 10. In some embodiments, the controller 2400 multifunctional device also includes an energy storage module detection circuit 2500, which is used to detect the voltage of the energy storage module 2100; when the voltage detected by the energy storage module detection circuit 2500 is less than the first preset voltage, the controller 2400 is used to control the energy storage module 2100 to stop supplying power.

[0098] Specifically, energy storage module detection circuit 2500 can refer to FIG12 . Energy storage module 2100 is connected in series with resistors R9 and R11. The voltage at the BAT_VSN terminal is the divided voltage of resistor R9. Therefore, the voltage at the BAT_VSN terminal can be used to detect the voltage of energy storage module 2100. Energy storage module detection circuit 2500 is connected to controller U2 via the BAT_VSN terminal. Controller U2 can detect the voltage of energy storage module 2100 based on the voltage at the BAT_VSN terminal and control energy storage module 2100 to stop supplying power when the voltage of the detection group is less than a first preset voltage.

[0099] In this way, the energy storage module detection circuit 2500 can detect the voltage of the energy storage module 2100, and the controller 2400 can control the energy storage module 2100 to stop supplying power if the voltage of the energy storage module 2100 is too low. This can reduce or avoid damage to the multifunctional device due to the low voltage of the energy storage module 2100.

[0100] In some embodiments, the multifunctional device further includes an alarm circuit, which is configured to send an alarm signal when the voltage detected by the energy storage module detection circuit 2500 is lower than a first preset voltage.

[0101] Specifically, the alarm circuit can be the indicator light LDE1 in FIG11 . When the voltage detected by the energy storage module detection circuit 2500 is less than a first preset voltage, the voltage of the energy storage module 2100 is too low, the alarm circuit sends an alarm signal, and the indicator light illuminates. The alarm circuit can also include an audible alarm device such as a buzzer. When the alarm circuit sends an alarm signal, the audible alarm device emits a prompt sound.

[0102] In this way, the alarm circuit can send an alarm signal to provide a prompt when the voltage of the energy storage module 2100 is too low, which can reduce or avoid damage to the multifunctional device due to the low voltage of the energy storage module 2100.

[0103] Please refer to Figure 10. In some embodiments, the controller 2400 multifunctional device also includes a load detection circuit 2600, which is used to detect electrical parameters of the load connection terminal 2200. When the voltage detected by the energy storage module detection circuit 2500 is greater than the first preset voltage, the controller 2400 is also used to determine the corresponding working mode according to the detection result of the load detection circuit 2600, and control the power supply of the energy storage module 2100 to the load connection terminal 2200 based on the corresponding working mode.

[0104] Specifically, the electrical parameters of the load connection terminal 2200 include the current and voltage at the load connection terminal 2200. The load detection circuit 2600 can refer to FIG12 . The positive electrode CAR+ of the load connection terminal 2200 is connected in series with resistors R8 and R10. The voltage at the CAR_VSN terminal is the divided voltage of resistor R8. Therefore, the voltage at the CAR_VSN terminal can be used to detect the voltage at the load connection terminal 2200. The negative electrode CAR- of the load connection terminal 2200 is grounded through resistor R4 and capacitor C2. When the load connected to the load connection terminal 2200 starts, the load current flows through the positive electrode CAR+ of the load connection terminal 2200 to the negative electrode CAR- of the load connection terminal 2200 and then flows to the ground terminal. The current flowing through the resistor R4 and capacitor C2 is the load current, and the current at the OUT_ISN terminal is the load current. The controller U2 in Figure 11 is connected to the load detection circuit 2600 through the CAR_VSN terminal and the OUT_ISN terminal, and can obtain the detected load voltage and load current. According to the detection results, the controller U2 outputs a control signal at the RELAY_EN terminal to control the state of the switch tube Q1 and the switch K1 in Figure 8, thereby controlling the power supply of the energy storage module 2100 to the load connection terminal 2200.

[0105] In this way, the load detection circuit 2600 can be used to detect electrical parameters of the load connection terminal 2200 , and the controller 2400 can control the power supply of the energy storage module 2100 to the load connection terminal 2200 according to the detection result of the load detection circuit 2600 .

[0106] In certain embodiments, when the voltage detected by the load detection circuit 2600 is greater than a second preset voltage, the controller 2400 can be used to control the power supply of the energy storage module 2100 to the load connection terminal 2200 in a preset working mode.

[0107] Specifically, when the voltage detected by the load detection circuit 2600 is greater than the second preset voltage, it can be considered that the load connection terminal 2200 is connected to a load that requires electricity. The controller U2 in Figure 11 is internally provided with a preset operating mode. When the connected load begins to start working, the controller 2400 can output a control signal at the RELAY_EN terminal according to the preset operating mode to control the state of the switch tube Q1 and the switch K1 in Figure 8, thereby controlling the power supply of the energy storage module 2100 to the load connection terminal 2200. If the voltage detected by the load detection circuit 2600 is less than the second preset voltage, it can be considered that the load connection terminal 2200 is not connected to a load that requires electricity, and the energy storage module 2100 does not supply power to the load connection terminal 2200.

[0108] In this way, when the load connection terminal 2200 is connected to a load that requires electricity, the controller 2400 can control the power supply of the energy storage module 2100 to the load connection terminal 2200 according to the preset working mode, thereby avoiding the energy storage module 2100 supplying power to the load connection terminal 2200 in advance and causing energy waste.

[0109] In some embodiments, when the voltage detected by the load detection circuit 2600 is greater than the second preset voltage, the controller 2400 is further configured to control the energy storage module 2100 to supply power to the load connection terminal within a first preset time.

[0110] Specifically, the preset operating mode of the controller 2400 includes: controlling the energy storage module 2100 to supply power to the load connection terminal 2200 within a first preset time. When the load connection terminal 2200 is connected to a load requiring power, the controller 2400 enters the preset operating mode. The controller 2400 first controls the energy storage module 2100 to supply power to the load connection terminal 2200. After supplying power for a period of time, the controller 2400 then controls the power supply of the energy storage module 2100 to the load connection terminal 2200 based on the load current. In the preset operating mode, the controller 2400 first controls the energy storage module 2100 to supply power to the load connection terminal 2200. The controller U2 in FIG11 outputs a control signal through the RELAY_EN terminal, causing the switch K1 in FIG8 to close for a period of time. The period of time when the switch K1 is closed is the first preset time, allowing the energy storage module 2100 to provide power to the load within the first preset time.

[0111] In some embodiments, the load detection circuit 2600 is further used to detect the current of the load connection terminal 2200 , and the controller 2400 is further used to control the power supply of the energy storage module 2100 to the load connection terminal 2200 based on the current detected by the load detection circuit 2600 .

[0112] Specifically, after the first preset time, controller 2400 compares the preset current with the current detected by load detection circuit 2600 and, based on the comparison result, controls the power supply provided by energy storage module 2100 to load connection terminal 2200. When the connected load is a starting device or a car battery, the preset current can be set according to the operating current during vehicle ignition. The comparison result between the preset current and the load current can reflect the vehicle startup status. Controller 2400 can control the power supply to the starting device or car battery based on the vehicle startup status. After the first preset time, controller U2 again compares the detected current at terminal OUT_ISN with the preset current and, based on the comparison result, outputs a control signal via terminal RELAY_EN to control switch K1, thereby controlling the power supply provided by energy storage module 2100 to load connection terminal 2200.

[0113] In this way, the controller 2400 can control the power supply from the energy storage module 2100 to the load connection terminal 2200 according to the load operating conditions. When the connected load is a starting device or a car battery, the controller 2400 can control the power supply to the starting device or the car battery according to the car starting working conditions.

[0114] In some embodiments, after the first preset time, if the current detected by the load detection circuit 2600 is less than a preset current, the controller 2400 is further configured to control the energy storage module 2100 to stop supplying power to the load connection terminal 2200 .

[0115] Specifically, after a first preset time period in controller 2400, if the current detected by load detection circuit 2600 is less than a preset current, it can be assumed that the load no longer requires energy from energy storage module 2100, and energy storage module 2100 is controlled to stop supplying power to load connection terminal 2200. If the load connected to load connection terminal 2200 is a starting device or a car battery, and the current detected by load detection circuit 2600 is less than the preset current, the load current is significantly lower than the operating current required for vehicle ignition startup, and it can be assumed that the vehicle has completed ignition startup, and energy storage module 2100 stops supplying power to load connection terminal 2200.

[0116] In this way, the controller 2400 can promptly stop the energy storage module 2100 from supplying power to the load connection terminal 2200 , thereby avoiding the phenomenon that the energy storage module 2100 supplies power to the load connection terminal 2200 for too long, thereby avoiding the phenomenon that the energy storage module 2100 wastes power.

[0117] In some embodiments, after the first preset time, if the current detected by the load detection circuit 2600 is greater than the preset current, the controller 2400 is further configured to control the energy storage module 2100 to continue supplying power to the load connection terminal 2200 .

[0118] Specifically, after the first preset time of controller 2400, if the current detected by load detection circuit 2600 is greater than the preset current, it can be assumed that the load still needs power, and energy storage module 2100 continues to supply power to load connection terminal 2200. If the load connected to load connection terminal 2200 is a starting device or a car battery, when the current detected by load detection circuit 2600 is greater than the preset current, the load current value is still relatively high and is approximately the same as the operating current of the car ignition start. It can be assumed that the car is still in the ignition start process, and energy storage module 2100 continues to supply power to load connection terminal 2200.

[0119] In some embodiments, within a second preset time after the energy storage module 2100 stops supplying power to the load connection terminal 2200 , if the voltage detected by the load detection circuit 2600 is less than a third preset voltage, the controller 2400 is further configured to exit the preset working mode.

[0120] Specifically, the energy storage module 2100 stops supplying power to the load connection terminal 2200, and the switch K1 remains off for a period of time, i.e., the second preset time. During the time K1 remains off, the controller U2 detects the voltage detected by the load detection circuit 2600. If the load voltage is less than the third preset voltage within the second preset time, it can be assumed that the load connection terminal 2200 is no longer connected to the load. The switch K1 continues to remain off, and the energy storage module 2100 remains in a state of not supplying power to the load connection terminal 2200, exiting the preset operating mode. The value of the third preset voltage can be set to a value less than the second preset voltage. This can avoid the situation where the voltage is less than the third preset voltage and greater than the second preset voltage at the same time, resulting in a repeated cycle of exiting the preset operating mode and then re-entering the preset operating mode.

[0121] In this way, when the load connection terminal 2200 is no longer connected to a load, the switch K1 continues to be turned off, and the energy storage module 2100 remains in a state of not supplying power to the load connection terminal 2200 .

[0122] In some embodiments, within a second preset time after the energy storage module 2100 stops supplying power to the load connection terminal 2200, if the voltage detected by the load detection circuit 2600 is greater than a third preset voltage, the controller 2400 is further configured to control the energy storage module 2100 to supply power to the load connection terminal 2200 within the first preset time again after the second preset time.

[0123] Specifically, the energy storage module 2100 stops supplying power to the load connection terminal 2200, and the switch K1 remains off for a period of time, i.e., the second preset time. During the time that K1 remains off, the controller U2 will detect the voltage detected by the load detection circuit 2600. If it is detected that the load voltage is greater than the third preset voltage within the second preset time, it can be considered that the load that needs electricity is connected again at this time. After the second preset time, K1 changes from the shutdown mode state to the closed state, and the energy storage module 2100 supplies power to the load connection terminal 2200 again to supply power to the load that needs electricity. When the connected load is a car battery, after the car is ignited, the load current is less than the preset current, and the switch K1 remains off for the second preset time, so that the energy storage module 2100 does not supply power to the car battery within the second preset time. However, since other devices in the car also require electricity, the voltage detected by the load detection circuit 2600 is greater than the third preset voltage during the time when the switch K1 remains off. After the second preset time, the switch K1 is closed again, allowing the energy storage module 2100 to supply power to the car battery to meet the power needs of other devices in the car.

[0124] In this way, the energy storage module 2100 is controlled to supply power to the load connection terminal 2200 according to a preset working mode, which can meet the power demand of the car after ignition is completed.

[0125] Please refer to Figure 10. In some embodiments, the controller 2400 multifunctional device further includes a control button module 2700. The control button module 2700 is used to control the energy storage module 2100 to supply / stop power to the air pump 2300 and / or the load connection terminal 2200.

[0126] Specifically, the control button module 2700 can be composed of the button S1 and the button S2 in Figure 11. When the voltage of the energy storage module 2100 is greater than the first preset voltage, one button in the control button module 2700 can control the energy storage module 2100 to supply power to / stop the air pump 2300, and the other button can control the energy storage module 2100 to supply power to / stop the load connection terminal 2200. Assuming that the button S1 controls the energy storage module 2100 to supply power to / stop the load connection terminal 2200, when S1 is pressed for the first time, the energy storage module 2100 supplies power to the load connection terminal 2200, and when S1 is pressed again, the energy storage module 2100 stops supplying power to the load connection terminal 2200. In particular, when the button S1 controls the energy storage module 2100 to supply power to / stop the load connection terminal 2200, the detection result of the load detection circuit 2600 does not need to be considered.

[0127] In this way, the control button module 2700 can be used to control the energy storage module 2100 to supply / stop supplying power to the air pump 2300 and / or the load connection terminal 2200 .

[0128] Please refer to FIG. 10 . In certain embodiments, the controller 2400 multifunctional device further includes a switch component for controlling the connection / disconnection between the energy storage module 2100 and the load connection terminal 2200 .

[0129] Specifically, the switch assembly may be composed of the switch tube Q1 and the switch K1 shown in FIG8 . When the RELAY_EN signal output by the controller 2400 is at a high level, the switch tube Q1 is turned on, causing the switch K1 to close, connecting the positive electrode BAT+ of the energy storage module 2100 to the load connection terminal 2200CAR+. When the RELAY_EN signal output by the controller 2400 is at a low level, the switch tube Q1 is turned off, causing the switch K1 to disconnect the positive electrode BAT+ of the energy storage module 2100 from the load connection terminal 2200CAR+.

[0130] In this way, the switch assembly can be used to control the connection / disconnection between the energy storage module 2100 and the load connection terminal 2200 .

[0131] Referring to FIG. 10 , in certain embodiments, the controller 2400 multi-function device further includes a voltage stabilizing circuit.

[0132] Specifically, the voltage stabilizing circuit may be the voltage stabilizing chip U1 in FIG. 9 , the voltage of the energy storage module 2100 may be connected to the voltage stabilizing chip U1 , and the voltage stabilizing chip U1 outputs a stable voltage for powering the controller 2400 in FIG. 11 .

[0133] The multifunctional device of the embodiment of the present application includes an air pump 2300, a load connection terminal 2200, and an energy storage module 2100. The load connection terminal 2200 is used to connect to a load, and the energy storage module 2100 can be used to power the air pump 2300 and / or the load connection terminal 2200. The multifunctional device of the present application has the function of an air pump 2300 and can also power an external load through the load connection terminal 2200, meeting the requirements of being a mobile power supply. In this way, the power supply of the air pump 2300 is compatible with the mobile power supply, reducing the floor space occupied and being more convenient to use and carry.

[0134] In the description of this specification, the reference terms "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" mean that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the exemplary expressions of the above terms do not necessarily refer to the same embodiment or example. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification, as well as features of different embodiments or examples, unless they are mutually inconsistent.

[0135] Furthermore, the term "connection" should be interpreted broadly. For example, it can include fixed connection, detachable connection, or integral connection; it can include direct connection, indirect connection through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0136] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0137] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code comprising one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may be performed out of the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present application belong.

[0138] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. An air pump device, characterized in that: The air pump device comprises: Energy storage group; A power connection terminal, which is used to connect to an external power source; An air pump is connected to the energy storage group and the power connection end, and the energy storage group and / or the external power supply can be used to power the air pump.

2. The air pump device according to claim 1, characterized in that: The external power source connected to the power connection end includes at least a car battery, and the car battery is used to connect to the power connection end through a car cigarette lighter, or the car battery is connected to the power connection end.

3. The air pump device according to claim 1, characterized in that: The energy storage group can be used to power the air pump; when the power connection end is connected to the external power supply, the energy storage group and / or the external power supply can be used to power the air pump.

4. The air pump device according to claim 1, characterized in that: The air pump device also includes a charging module, which is arranged between the energy storage group and the power connection end. The external power supply connected to the power connection end can be used to charge the energy storage group through the charging module.

5. The air pump device according to claim 1, characterized in that: The air pump device also includes a controller, a control end of the controller is used to access the controlled end of the air pump, and the controller is used to control the air pump to start or stop.

6. The air pump device according to claim 5, characterized in that: The air pump device also includes a detection module, which is used to detect the voltage of the energy storage group and the voltage of the power connection end. The controller is used to control the start or stop of the air pump according to the detection result of the detection module.

7. The air pump device according to claim 6, characterized in that: When the detection module detects that the voltage of the energy storage group is greater than a first preset voltage, the controller can be used to control the start-up of the air pump and enable the energy storage group to supply power to the air pump.

8. The air pump device according to claim 6, characterized in that: When the detection module detects that the voltage at the power connection terminal is greater than a second preset voltage, the controller can be used to control the start-up of the air pump and enable the external power supply connected to the power connection terminal to power the air pump.

9. The air pump device according to claim 6, characterized in that: When the detection module detects that the voltage of the energy storage group is less than a first preset voltage, and the voltage of the power connection terminal is less than a second preset voltage, the controller can be used to control the air pump to stop working.

10. The air pump device according to claim 5, characterized in that: The air pump device also includes a control button, which, when triggered, sends a button trigger signal to the controller, so that the controller can be used to control the air pump to start or stop.

11. The air pump device according to claim 5, characterized in that: The air pump device also includes a switch component, and the controller is used to control the start or stop of the air pump by controlling the on or off of the switch component.

12. The air pump device according to any one of claims 1 to 11, characterized in that: The air pump device further comprises a load connection terminal, wherein the load connection terminal is used to connect a load, wherein the load comprises at least one of a starting device and a car battery.

13. A multifunctional device, characterized in that: The multifunctional device comprises: Air pump; A load connection terminal, the load connection terminal being used to connect a load, the load comprising at least one of a starting device and a car battery; An energy storage module, wherein the energy storage module can be used to supply power to the air pump and / or the load connection terminal.

14. The multifunctional device according to claim 13, characterized in that The multifunctional device further comprises a controller, and the controller is used to control the energy storage module to supply power to the air pump and / or the load connection terminal.

15. The multifunctional device according to claim 14, characterized in that The multifunctional device further comprises an energy storage module detection circuit, wherein the energy storage module detection circuit is used to detect the voltage of the energy storage module; When the voltage detected by the energy storage module detection circuit is less than a first preset voltage, the controller is used to control the energy storage module to stop supplying power.

16. The multifunctional device according to claim 15, characterized in that The multifunctional device further comprises an alarm circuit, and when the voltage detected by the energy storage module detection circuit is less than the first preset voltage, the alarm circuit is used to send an alarm signal.

17. The multifunctional device according to claim 15 further comprises a load detection circuit, wherein the load detection circuit is used to detect electrical parameters of the load connection terminal, and when the voltage detected by the energy storage module detection circuit is greater than the first preset voltage, the controller is further used to determine a corresponding working mode according to the detection result of the load detection circuit, and control the power supply of the energy storage module to the load connection terminal based on the corresponding working mode.

18. The multifunctional device according to claim 17, characterized in that When the voltage detected by the load detection circuit is greater than a second preset voltage, the controller can also be used to control the power supply of the energy storage module to the load connection terminal in a preset working mode.

19. The multifunctional device according to claim 18, characterized in that When the voltage detected by the load detection circuit is greater than the second preset voltage, the controller is further used to control the energy storage module to supply power to the load connection terminal within a first preset time.

20. The multifunctional device according to claim 19, characterized in that The load detection circuit is further used to detect the current at the load connection end, and the controller is further used to control the power supply of the energy storage module to the load connection end based on the current detected by the load detection circuit.

21. The multifunctional device according to claim 20, characterized in that After the first preset time, if the current detected by the load detection circuit is less than a preset current, the controller is further configured to control the energy storage module to stop supplying power to the load connection terminal.

22. The multifunctional device according to claim 20, characterized in that After the first preset time, if the current detected by the load detection circuit is greater than a preset current, the controller is further configured to control the energy storage module to continue supplying power to the load connection terminal.

23. The multifunctional device according to claim 21, characterized in that Within a second preset time after the energy storage module stops supplying power to the load connection terminal, if the voltage detected by the load detection circuit is less than a third preset voltage, the controller is further configured to exit the preset working mode.

24. The multifunctional device according to claim 21, characterized in that Within a second preset time after the energy storage module stops supplying power to the load connection end, if the voltage detected by the load detection circuit is greater than a third preset voltage, the controller is also used to control the energy storage module to supply power to the load connection end within the first preset time again after the second preset time.

25. The multifunctional device according to claim 13, characterized in that The multifunctional device further comprises a control button module, and the control button module is used to control the energy storage module to supply power / stop supplying power to the air pump and / or the load connection terminal.

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