Vehicle-mounted low-voltage auxiliary starting device, low-voltage auxiliary starting system and vehicle

Abstract

The utility model discloses a vehicle-mounted low-voltage auxiliary starting device, a low-voltage auxiliary starting system and a vehicle, the vehicle-mounted low-voltage auxiliary starting device is applied to the vehicle with a charging interface, the charging interface is used for accessing an external mobile power supply, and the vehicle-mounted low-voltage auxiliary starting device comprises a storage battery, an electric component and a voltage booster, the storage battery has a positive electrode and a negative electrode; the electric component is provided with a first electrode and a second electrode, the first electrode is connected to the positive electrode, and the second electrode is connected to the negative electrode; the voltage booster is provided with an electric input end, a first electric output end and a second electric output end, the electric input end is connected to the charging interface, the first electric output end is connected to the positive electrode, and the second electric output end is connected to the negative electrode. According to the utility model, the charging interface used for being connected with the external mobile power supply is configured on the vehicle, so that the storage battery can be conveniently charged, and the convenience that the storage battery needs to be recovered to a power supply state when the storage battery is in low voltage is greatly improved.

Description

Technical Field

[0001] The utility model relates to a power supply system, in particular to a vehicle-mounted low-voltage auxiliary starting device, a low-voltage auxiliary starting system and a vehicle. Background Art

[0002] In an automobile, a large number of electrical appliances rely on a low-voltage power supply system to maintain their normal operation. This low-voltage power supply system generally includes a low-voltage battery, a starting switch, a power conversion device, an electrical control unit and various low-voltage electrical appliances. As the core of the low-voltage power supply system, the low-voltage battery is responsible for providing the initial energy required to start the vehicle and driving the work of various low-voltage electrical appliances before the engine starts.

[0003] However, with the development of automotive technology, especially the increasing proportion of electronic and electrical appliances in the automotive system, this trend places higher requirements on the low-voltage power supply system. Functions such as data processing, storage and sharing rely greatly on a stable and reliable low-voltage power supply. Especially in the fields of new energy and intelligent vehicles, the requirements for the power storage capacity and reliability of the battery are more stringent. In practical applications, situations such as long-term parking or low-temperature environments may cause the power of the low-voltage battery to drop, or even result in a power failure, that is, the power loss caused by the self-discharge of the battery, which directly affects the starting ability of the vehicle.

[0004] In the face of the situation of low-voltage battery power failure or insufficient power, conventional solutions include seeking professional jump-starting services or towing the vehicle to a repair station. However, these methods are often time-consuming, inconvenient and inefficient. Therefore, there is an urgent need for a vehicle-mounted low-voltage auxiliary starting device that can be configured on a vehicle to improve the starting convenience when the battery is low-voltage. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a vehicle-mounted low-voltage auxiliary starting device, a low-voltage auxiliary starting system and a vehicle, so as to solve one or more technical problems existing in the prior art, and at least provide a beneficial choice or create conditions.

[0006] A vehicle-mounted low-voltage auxiliary starting device according to an embodiment of the first aspect of the utility model is applied to a vehicle having a charging interface, and the charging interface is used to connect to an external mobile power supply. The vehicle-mounted low-voltage auxiliary starting device includes:

[0007] A battery, having a positive electrode and a negative electrode;

[0008] An electrical component, having a first electrode and a second electrode, the first electrode being connected to the positive electrode, and the second electrode being connected to the negative electrode;

[0009] A voltage booster, having an electrical input terminal, a first electrical output terminal and a second electrical output terminal, wherein the electrical input terminal is connected to the charging interface, the first electrical output terminal is connected to the positive electrode, and the second electrical output terminal is connected to the negative electrode.

[0010] This technical solution has at least the following beneficial effects: The positive electrode and the negative electrode of the storage battery are respectively connected to the first electrode and the second electrode of the electrical component to form an electrical circuit, and the storage battery can supply power to the electrical component. The electrical component is a low-voltage electrical device in the vehicle, such as an electrical device that assists in starting the vehicle. The first electrical output terminal and the second electrical output terminal of the voltage booster are respectively connected to the positive electrode and the negative electrode of the storage battery to form a charging circuit in parallel with the electrical component. When the storage battery has a power feed or insufficient power, since the vehicle is equipped with a charging interface that can access an external mobile power supply, the external mobile power supply can be directly connected to the charging interface, the voltage is increased by the voltage booster, and the storage battery is charged, so that the storage battery is restored to a state where it can start and supply power to the electrical component, realizing the function of low-voltage auxiliary starting. In this way, the charging interface for connecting the external mobile power supply is configured on the vehicle, and the storage battery can be conveniently charged, greatly improving the convenience of restoring to a power supply state when the storage battery is at a low voltage.

[0011] According to some embodiments of the present invention, the vehicle-mounted low-voltage auxiliary starting device further includes an indicator light, and the indicator light is connected between the first electrical output terminal and the positive electrode.

[0012] According to some embodiments of the present invention, the vehicle-mounted low-voltage auxiliary starting device further includes:

[0013] A controller, having a first electrical connection terminal, a second electrical connection terminal and a third electrical connection terminal, wherein the first electrical connection terminal is connected to the positive electrode, and the second electrical connection terminal is connected to the negative electrode;

[0014] A relay, having a fourth electrical connection terminal and a fifth electrical connection terminal, wherein the fourth electrical connection terminal is connected to the third electrical connection terminal, and the fifth electrical connection terminal is connected to the negative electrode;

[0015] Wherein, the controller is configured to control the relay to disconnect the power connection between the first electrical output terminal and the positive electrode when the voltage of the storage battery is monitored to reach a preset voltage value.

[0016] According to some embodiments of the present invention, the indicator light is a two-color light having a first color light and a second color light. The indicator light is connected in series with the control terminal of the relay and is connected between the first electrical output terminal and the positive electrode. The indicator light is configured to emit the first color light when the control terminal of the relay connects the first electrical output terminal and the positive electrode, and emit the second color light when the control terminal of the relay disconnects the first electrical output terminal and the positive electrode.

[0017] According to some embodiments of the present utility model, the charging interface includes one or more of a USB interface, a Type-C interface, or a Lightning interface.

[0018] According to some embodiments of the present utility model, the vehicle-mounted low-voltage auxiliary starting device further includes a grounding electrode, and the grounding electrode is connected to the negative electrode.

[0019] According to some embodiments of the present utility model, the vehicle-mounted low-voltage auxiliary starting device further includes a voltage display, the voltage display has a sixth electrical connection end and a seventh electrical connection end, the sixth electrical connection end is connected to the positive electrode, and the seventh electrical connection end is connected to the negative electrode.

[0020] According to some embodiments of the present utility model, the voltage booster includes a direct current to direct current boost circuit, and the direct current to direct current boost circuit includes the electrical input end, the first electrical output end, and the second electrical output end.

[0021] A low-voltage auxiliary starting system according to an embodiment of the second aspect of the present utility model includes:

[0022] A mobile power source;

[0023] The above-mentioned vehicle-mounted low-voltage auxiliary starting device, the mobile power source has an electrical output end, and the electrical output end is connected to the charging interface.

[0024] This technical solution has at least the following beneficial effects: A mobile power source and a vehicle-mounted auxiliary starting device are configured in the vehicle. When the battery is out of power or has insufficient power, the mobile power source can be directly connected to the charging interface, the voltage is increased by the voltage booster, and the battery is charged, so that the battery is restored to a state where it can start and supply power to the electrical components, realizing the function of low-voltage auxiliary starting. In this way, the charging interface for connecting an external mobile power source is configured on the vehicle, which can conveniently charge the battery and greatly improve the convenience of restoring the battery to a power supply state when the battery is at low voltage.

[0025] A vehicle includes:

[0026] A carriage;

[0027] The above-mentioned vehicle-mounted low-voltage auxiliary starting device, and the charging interface is arranged in the carriage.

[0028] The technical solution has at least the following beneficial effects: The charging interface is located inside the vehicle compartment. When the storage battery runs out of power or has insufficient power, the mobile power supply is directly connected to the charging interface inside the vehicle compartment, which improves the convenience of using the in-vehicle low-voltage auxiliary starting device. The voltage is increased by a voltage booster and the storage battery is charged, so that the storage battery is restored to a state where it can start and supply power to the electrical components, realizing the function of low-voltage auxiliary starting. In this way, the charging interface for connecting the external mobile power supply is configured on the vehicle, which can conveniently charge the storage battery and greatly improves the convenience of restoring the storage battery to a power supply state when the voltage is low.

[0029] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become obvious from the following description, or will be understood through the practice of the present invention.

[0030] become obvious, or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly describe the drawings required for the description of the embodiments. Obviously, the described drawings are only part of the embodiments of the present invention, rather than all embodiments. Those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative efforts.

[0032] Figure 1 is a schematic structural diagram of the in-vehicle low-voltage auxiliary starting device of the present invention.

[0033] Figure 2 is a schematic structural diagram of the low-voltage auxiliary starting system of the present invention.

[0034] In the drawings: 100 - charging interface, 200 - storage battery, 300 - electrical components, 400 - voltage booster, 500 - indicator light, 600 - controller, 700 - relay, 800 - grounding electrode, 900 - mobile power supply. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] The following will describe in detail the embodiments of the present invention. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0036] In the description of the present utility model, it should be understood that with respect to the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., it is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0037] In the description of the present utility model, the meaning of several is one or more, the meaning of multiple is two or more. Understanding greater than, less than, exceeding, etc. does not include the present number, and understanding above, below, within, etc. includes the present number. If there is a description of first and second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0038] In the description of the present utility model, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meaning of the above words in the present utility model in combination with the specific content of the technical solution.

[0039] Referring to Figure 1 and Figure 2 , a vehicle-mounted low-voltage auxiliary starting device according to an embodiment of the first aspect of the present utility model is applied to a vehicle having a charging interface 100. The charging interface 100 is used to connect to an external mobile power source 900. The vehicle-mounted low-voltage auxiliary starting device includes a storage battery 200, an electrical component 300, and a voltage booster 400, wherein:

[0040] The storage battery 200 has a positive electrode and a negative electrode. In practical applications, the storage battery 200 is a low-voltage storage battery 200, which is mainly used to supply power to low-voltage electrical components such as vehicle igniters.

[0041] The electrical component 300 has a first electrode and a second electrode. The first electrode is connected to the positive electrode, and the second electrode is connected to the negative electrode. The electrical component 300 is a low-voltage electrical component, including a vehicle igniter, etc., and the storage battery 200 supplies electrical energy to it.

[0042] The voltage booster 400 has an electrical input terminal, a first electrical output terminal, and a second electrical output terminal. The electrical input terminal is connected to the charging interface 100, the first electrical output terminal is connected to the positive electrode, and the second electrical output terminal is connected to the negative electrode.

[0043] As described above, the positive electrode and the negative electrode of the storage battery 200 are respectively connected to the first electrode and the second electrode of the electrical component 300 to form an electrical usage loop. The storage battery 200 can supply power to the electrical component 300. The electrical component 300 is a low-voltage electrical device in the vehicle, such as an electrical device that assists in starting the vehicle. The first electrical output terminal and the second electrical output terminal of the voltage booster 400 are respectively connected to the positive electrode and the negative electrode of the storage battery 200 to form a charging loop in parallel with the electrical component 300. When the storage battery 200 runs out of power or has insufficient power, since the vehicle is equipped with a charging interface 100 that can access an external mobile power source 900, the external mobile power source 900 can be directly connected to the charging interface 100. The voltage is increased by the voltage booster 400 and the storage battery 200 is charged, so that the storage battery 200 is restored to a state where it can start and supply power to the electrical component 300, realizing the function of low-voltage auxiliary starting. In this way, the charging interface 100 for connecting the external mobile power source 900 is configured on the vehicle, which can conveniently charge the storage battery 200 and greatly improve the convenience of restoring the storage battery 200 to a power supply state when it is at low voltage.

[0044] In order to facilitate observing the charging state, in this embodiment, the vehicle-mounted low-voltage auxiliary starting device further includes an indicator light 500, and the indicator light 500 is connected between the first electrical output terminal and the positive electrode. When the storage battery 200 is charged by the voltage booster 400, the indicator light 500 is turned on. At this time, through the lighting indication provided by the indicator light 500, it is convenient to observe whether the charging loop is turned on, improving the convenience of use.

[0045] When the storage battery 200 is charged to the required voltage, it can be directly obtained by detecting the voltage of the storage battery 200. In order to facilitate determining that the storage battery 200 reaches the required voltage, in this embodiment, the vehicle-mounted low-voltage auxiliary starting device further includes a controller 600 and a relay 700, where:

[0046] The relay 700 has a fourth electrical connection terminal and a fifth electrical connection terminal. The fourth electrical connection terminal is connected to the third electrical connection terminal, and the fifth electrical connection terminal is connected to the negative electrode.

[0047] The controller 600 has a first electrical connection terminal, a second electrical connection terminal and a third electrical connection terminal. The first electrical connection terminal is connected to the positive electrode, and the second electrical connection terminal is connected to the negative electrode. The controller 600 is configured to monitor that when the voltage of the storage battery 200 reaches a preset voltage value, control the relay 700 to disconnect the power connection between the first electrical output terminal and the positive electrode.

[0048] In this embodiment, the preset voltage value required for charging the storage battery 200 can be adjusted as needed, generally equal to or greater than the power supply voltage. The relay 700 can control the on-off of the current between the first electrical output terminal and the positive electrode. When the storage battery 200 is being charged normally, the connection between the first electrical output terminal and the positive electrode is in an energized state; when the storage battery 200 is charged to the preset voltage value, the controller 600 controls the relay 700 to disconnect the energization between the first electrical output terminal and the positive electrode, automatically stopping the charging of the storage battery 200.

[0049] The indicator light 500 can emit only one color of light. In this case, the same color of light is displayed whether in the charging state or the charging completed state. In order to facilitate distinguishing whether the storage battery 200 is charged to the required voltage, in this embodiment, the indicator light 500 is a two-color light with a first color light and a second color light. The indicator light 500 is connected in series with the control terminal of the relay 700 and is connected between the first electrical output terminal and the positive electrode. The indicator light 500 is configured to emit the first color light when the control terminal of the relay 700 connects the first electrical output terminal and the positive electrode, and emit the second color light when the control terminal of the relay 700 disconnects the first electrical output terminal and the positive electrode. The switch control of the relay 700 is located between the indicator light 500 and the first electrical output terminal, and can control the on-off of the current between the first electrical output terminal and the indicator light 500. When the storage battery 200 is being charged normally, the connection between the first electrical output terminal and the positive electrode is in a conducting state. At this time, the indicator light 500 emits the first color light, such as orange or red, etc. After the storage battery 200 is charged to the preset voltage value, the relay 700 disconnects the energization between the first electrical output terminal and the positive electrode. At this time, the indicator light 500 emits the second color light, such as green. In this way, the charging state can be distinguished by different color lights, and can be visually observed and identified, improving the convenience of use.

[0050] The peripheral mobile power supply 900 is connected to the charging interface 100 to achieve power supply. There are various types of mobile power supplies 900, such as mobile phone power banks. Generally, according to different charging wiring, there will be various different charging connectors. Correspondingly, the charging interface 100 needs to be adapted to it. The charging interface 100 includes one or more of a USB interface, a Type-C interface, or a Lightning interface. Any one or a combination of the USB interface, the Type-C interface, or the Lightning interface can be installed on the vehicle. The installation location can be on the vehicle body, or directly installed inside the vehicle compartment.

[0051] In some embodiments, the vehicle-mounted low-voltage auxiliary starting device further includes a grounding electrode 800, and the grounding electrode 800 is connected to the negative electrode. Connecting the vehicle low-voltage auxiliary starting device to the ground can improve the safety during use.

[0052] In the above embodiments, the charging state of the storage battery 200 is mainly identified by the indicator lamp 500. In order to further improve the identification of the power state of the charging state of the storage battery 200, in this embodiment, the vehicle-mounted low-voltage auxiliary starting device further includes a voltage display. The voltage display has a sixth electrical connection terminal and a seventh electrical connection terminal. The sixth electrical connection terminal is connected to the positive electrode, and the seventh electrical connection terminal is connected to the negative electrode. The voltage display can be installed on the vehicle body or directly installed in the carriage. Through the display screen on the voltage display, the voltage value of the storage battery 200 detected by it can be displayed. In this way, it is convenient to know the voltage change of the storage battery 200 and judge the charging state of the storage battery 200, especially information such as the charging speed of the mobile power supply 900 to the storage battery 200.

[0053] The voltage booster 400 is mainly used to boost the voltage. In this embodiment, the voltage booster 400 includes a DC-DC boost circuit. The DC-DC boost circuit includes the electrical input terminal, the first electrical output terminal and the second electrical output terminal. In practical applications, the voltage booster 400 includes a drive circuit, a transformer circuit, a control circuit and a filter circuit. The drive circuit is provided with an electrical input terminal, and the filter circuit is provided with a first electrical output terminal and a second electrical output terminal. The mobile power supply 900 supplies low-voltage direct current from the electrical input terminal. The drive circuit receives the adjustment signal output by the control circuit and conducts the low-voltage direct current by adjusting its own on-off, so that the transformer circuit processes the positive half-cycle voltage and the negative half-cycle voltage in the low-voltage direct current respectively, provides a positive power supply voltage and a negative power supply voltage, and is filtered by the filter circuit, and then outputs high-voltage direct current from the first electrical output terminal and the second electrical output terminal.

[0054] According to a low-voltage auxiliary starting system of the second aspect embodiment of the present invention, as Figure 2 shown, it includes a mobile power supply 900 and the above-mentioned vehicle-mounted low-voltage auxiliary starting device. The mobile power supply 900 has an electrical output terminal, and the electrical output terminal is connected to the charging interface 100.

[0055] In this low-voltage auxiliary starting system, the mobile power source 900 can be continuously connected to the charging interface 100, or connected to the charging interface 100 when the battery 200 needs to be charged. Since the mobile power source 900 and the in-vehicle auxiliary starting device are configured in the vehicle, when the battery 200 runs out of power or has insufficient power, the mobile power source 900 can be directly connected to the charging interface 100, the voltage is increased by the voltage booster 400, and the battery 200 is charged, so that the battery 200 is restored to a state where it can start and supply power to the electrical components 300, realizing the function of low-voltage auxiliary starting. Thus, by configuring the charging interface 100 for connecting the external mobile power source 900 on the vehicle, the battery 200 can be conveniently charged, greatly improving the convenience of restoring the battery 200 to a power supply state when the voltage is low.

[0056] A vehicle includes: a carriage and the above-mentioned in-vehicle low-voltage auxiliary starting device, and the charging interface 100 is arranged in the carriage. The vehicle can be a private car, such as a sedan, an SUV, an MPV or a pickup truck, etc. The vehicle can also be an operating vehicle, such as a minibus, a bus, a small truck or a large trailer, etc. The vehicle needs to have a motor that can output power or store mechanical energy as a generator. When the vehicle is a new energy vehicle, it can be a hybrid vehicle or a pure electric vehicle.

[0057] In this vehicle, the charging interface 100 is installed in the carriage. When the battery 200 runs out of power or has insufficient power, the mobile power source 900 is directly connected to the charging interface 100 in the carriage, improving the convenience of using the in-vehicle low-voltage auxiliary starting device. The voltage is increased by the voltage booster 400, and the battery 200 is charged, so that the battery 200 is restored to a state where it can start and supply power to the electrical components 300, realizing the function of low-voltage auxiliary starting. Thus, by configuring the charging interface 100 for connecting the external mobile power source 900 on the vehicle, the battery 200 can be conveniently charged, greatly improving the convenience of restoring the battery 200 to a power supply state when the voltage is low.

[0058] Regarding the control of the relay 700 by the controller 600, it can be recorded in the memory. The memory stores a program that can run on the controller 600, and when the program is executed by the controller 600, it realizes the on-off control of the relay 700.

[0059] Take the example where the controller 600 and the memory in the vehicle control device can be connected via a bus. As a non-transitory computer-readable storage medium, the memory can be used to store non-transitory software programs and non-transitory computer-executable programs. In addition, the memory can include high-speed random access memory, and can also include non-transitory memory, such as at least one disk memory, flash memory device, or other non-transitory solid-state storage devices. In some embodiments, the memory optionally includes a memory remotely set relative to the control controller 600, and these remote memories can be connected to the control device via a network.

[0060] The non-transitory software programs and instructions required to implement the control method of the above embodiments are stored in the memory, and when executed by the controller 600, they perform the on / off control of the relay 700.

[0061] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, that is, they may be located in one place, or may be distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0062] Naturally, a computer-readable storage medium is provided in the vehicle, and the computer-readable storage medium stores computer-executable instructions for performing the control of the relay 700 by the above-mentioned controller 600.

[0063] It should be noted that since the computer-readable storage medium of this embodiment can perform the control of the relay 700 by the controller 600 in any of the above embodiments, therefore, the specific implementation manner and technical effect of the computer-readable storage medium of this embodiment can refer to the specific implementation manner and technical effect of the control of the relay 700 by the controller 600 in any of the above embodiments.

[0064] In addition, an embodiment of the present invention also provides a computer program product, including a computer program or computer instructions. The computer program or computer instructions are stored in a computer-readable storage medium. The controller 600 of the computer device reads the computer program or computer instructions from the computer-readable storage medium, and the controller 600 executes the computer program or computer instructions, so that the computer device performs the control of the relay 700 by the above-mentioned controller 600.

[0065] It should be noted that since the computer program product of this embodiment can perform the control of the relay 700 by the controller 600 in any of the above embodiments, therefore, the specific implementation manner and technical effect of the computer program product of this embodiment can refer to the specific implementation manner and technical effect of the control of the relay 700 by the controller 600 in any of the above embodiments.

[0066] Those of ordinary skill in the art can understand that all or some of the steps and systems disclosed in the above methods can be implemented as software, firmware, hardware, and their appropriate combinations. Some physical components or all physical components can be implemented as software executed by a controller 600, such as a central controller, a digital signal controller, or a microcontroller, or can be implemented as hardware, or can be implemented as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, which can include a computer storage medium (or non-transitory medium) and a communication medium (or transitory medium). As is well known to those of ordinary skill in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information, such as computer-readable instructions, data structures, program modules, or other data. Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cartridges, tapes, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, as is well known to those of ordinary skill in the art, a communication medium typically includes computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transmission mechanism, and can include any information delivery medium.

[0067] The above has specifically described the preferred embodiments of the present utility model, but the present invention is not limited to the described embodiments. Those skilled in the art can also make various equivalent variations or substitutions without departing from the spirit of the present utility model, and these equivalent variations or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A vehicle-mounted low-voltage auxiliary starting device, characterized in that: Applicable to a vehicle having a charging interface (100), the charging interface (100) being used to connect to a mobile power source (900) of an external device, the vehicle-mounted low-voltage auxiliary starting device comprising: A storage battery (200) having a positive electrode and a negative electrode; An electrical component (300) comprising a first electrode and a second electrode, wherein the first electrode is connected to the positive electrode, and the second electrode is connected to the negative electrode; A voltage booster (400) comprises an electrical input end, a first electrical output end and a second electrical output end, the electrical input end being connected to the charging interface (100), the first electrical output end being connected to the positive electrode, and the second electrical output end being connected to the negative electrode.

2. The vehicle-mounted low-voltage auxiliary starting device according to claim 1, characterized in that: The vehicle-mounted low-voltage auxiliary starting device further comprises an indicator light (500), wherein the indicator light (500) is connected between the first electrical output terminal and the positive electrode.

3. The vehicle-mounted low-voltage auxiliary starting device according to claim 2, characterized in that: The vehicle-mounted low-voltage auxiliary starting device also includes: A controller (600) having a first electrical connection end, a second electrical connection end and a third electrical connection end, wherein the first electrical connection end is connected to the positive electrode and the second electrical connection end is connected to the negative electrode; A relay (700) having a fourth electrical connection end and a fifth electrical connection end, the fourth electrical connection end being connected to the third electrical connection end, and the fifth electrical connection end being connected to the negative electrode; The controller (600) is configured to monitor that when the voltage of the storage battery (200) reaches a preset voltage value, control the relay (700) to disconnect the power supply between the first electrical output terminal and the positive electrode.

4. The vehicle-mounted low-voltage auxiliary starting device according to claim 3, characterized in that: The indicator light (500) is a two-color light having a first color light and a second color light. The indicator light (500) is connected in series with a control end of a relay (700) and is connected between a first electrical output end and a positive electrode. The indicator light (500) is configured to emit a first color light when the control end of the relay (700) is connected to the first electrical output end and the positive electrode, and to emit a second color light when the control end of the relay (700) is disconnected from the first electrical output end and the positive electrode.

5. The vehicle-mounted low-voltage auxiliary starting device according to claim 1, characterized in that: The charging interface (100) comprises one or more of a USB interface, a Type-C interface or a Lightning interface.

6. The vehicle-mounted low-voltage auxiliary starting device according to claim 1, characterized in that: The vehicle-mounted low-voltage auxiliary starting device also includes a grounding electrode (800), wherein the grounding electrode (800) is connected to the negative electrode.

7. The vehicle-mounted low-voltage auxiliary starting device according to claim 1, characterized in that: The vehicle-mounted low-voltage auxiliary starting device also includes a voltage display, which has a sixth electrical connection end and a seventh electrical connection end. The sixth electrical connection end is connected to the positive electrode, and the seventh electrical connection end is connected to the negative electrode.

8. The vehicle-mounted low-voltage auxiliary starting device according to claim 1, characterized in that: The voltage booster (400) comprises a DC-to-DC boost circuit, and the DC-to-DC boost circuit comprises the electrical input end, the first electrical output end, and the second electrical output end.

9. A low-voltage auxiliary starting system, characterized in that: include: Power bank (900); The vehicle-mounted low-voltage auxiliary starting device according to any one of claims 1 to 8, wherein the mobile power source (900) has an electrical output end, and the electrical output end is connected to the charging interface (100).

10. A vehicle, characterized in that: include: car; The vehicle-mounted low-voltage auxiliary starting device according to any one of claims 1 to 8, wherein the charging interface (100) is arranged in the vehicle compartment.

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