Vehicle-mounted starting power supply

Abstract

A vehicle-mounted starting power supply used for electrically connecting to a vehicle power connector to provide a starting voltage to the vehicle power connector for starting the vehicle, the starting power supply comprising a main control module (10), a rechargeable battery (11) connected to the main control module (10), and a state of charge sensing module (12) connected to the main control module (10) and the rechargeable battery (11); wherein the charge state detection module (12) is used to detect the charge state of the rechargeable battery (11) to generate a charge state signal, and the charge state signal is sent to the main control module (10); wherein the main control module (10) is used to receive the state of charge signal to determine a state of charge of the rechargeable battery (11), and electrical energy is drawn from the vehicle power connector to recharge the rechargeable battery (11) when the state of charge of the rechargeable battery (11) is lower than a preset state of charge.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of power supply and in particular to a vehicle-mounted starting power supply with recharging capability. STATE OF THE ART

[0002] The vehicle-mounted jump start power supply is a multifunctional portable mobile power source designed for users on the go with their vehicle.

[0003] However, in the actual use of the vehicle-mounted starting power supply, users found that the traditional vehicle-mounted starting power supply has some problems: the charging level of the starting power supply is insufficient, which needs to be charged with a special external charger, the charging method is inconvenient, and in some cases, such as in the countryside, it cannot even be charged; after the starting power supply is used for ignition several times, the battery capacity may be insufficient, which can easily cause the starting power supply to have a loss of performance, and if it cannot be charged in time, it may even damage the starting power supply; in low-temperature areas, the starting power supply cannot be used for multiple ignitions due to the low temperature; and if it is not used for a long time, the starting power supply itself consumes a lot of power.the starting power supply cannot be completely switched off.; CONTENT OF THE PRESENT UTILITY MODEL

[0004] In order to overcome the deficiencies of the existing technology, the present utility model provides a vehicle-mounted starting power supply, wherein when the charge level of the rechargeable battery is low, the rechargeable battery is charged via the vehicle to ensure a sufficient charge level of the rechargeable battery and to protect the rechargeable battery.

[0005] To solve the technical problems, the present utility model uses the following technical solutions: The utility model provides a vehicle-mounted starting power supply, the starting power supply comprising a main control module, a rechargeable battery connected to the main control module, and a state of charge detection module connected to the main control module and the rechargeable battery; wherein the state of charge detection module is used to detect the state of charge of the rechargeable battery to generate a state of charge signal, and the state of charge signal is sent to the main control module; wherein the main control module is used to receive the state of charge signal to determine a state of charge of the rechargeable battery, and electrical energy is drawn from the vehicle power port to recharge the rechargeable battery when the state of charge of the rechargeable battery is lower than a preset state of charge.

[0006] Alternatively, it is provided that the rechargeable battery is electrically connected to the vehicle power connection via the bidirectional control module; wherein the bidirectional control module comprises a magnetic holding relay, a forward control circuit connected to the main control module and the magnetic holding relay, and a reverse control circuit connected to the main control module and the magnetic holding relay; wherein the feedforward control circuit is used to receive a feedforward control signal from the main control module and to control the magnet holding relay to close based on the feedforward control signal; wherein the reverse control circuit is used to receive a reverse control signal from the main control module and to control the solenoid hold relay to open based on the reverse control signal.

[0007] Alternatively, the magnetic holding relay is intended to be a bidirectional magnetic holding relay.

[0008] Alternatively, it is provided that the state of charge detection module detects the state of charge of the rechargeable battery in real time after starting the vehicle, with the bidirectional control module remaining connected, wherein the main control module starts the vehicle power connection to recharge the rechargeable battery when the state of charge of the rechargeable battery is below the preset state of charge.

[0009] Alternatively, it is provided that the state of charge detection module comprises a detection transistor, a first resistor, and a second resistor; wherein the main control module is used to output a control signal to control the detection transistor to turn on; wherein the voltage at the positive electrode of the rechargeable battery is divided by the first and second resistors after the detection transistor has been turned on, the voltage at one end of the detection transistor being connected to the detection terminal of the main control module.

[0010] Alternatively, it is provided that the starting power supply also comprises a temperature sensing module and / or a heating module connected to the main control module; wherein the temperature sensing module is used to detect the temperature of the rechargeable battery; wherein the main control module activates the heating module to heat the rechargeable battery when the temperature of the rechargeable battery falls below a preset temperature.

[0011] Alternatively, the main control module is provided to control the charge level of the rechargeable battery to start the vehicle when the temperature of the rechargeable battery reaches the first heating temperature.

[0012] Alternatively, the main control module is configured to control the heating module to stop operation when the temperature of the rechargeable battery reaches the second heating temperature.

[0013] Alternatively, it is provided that the temperature detection module comprises an NTC sensor which is in contact with the rechargeable battery and is used to detect the temperature of the rechargeable battery.

[0014] Alternatively, it is provided that the heating module comprises a heating fin which is in contact with the rechargeable battery.

[0015] Alternatively, it is provided that the starting power supply further comprises a charge level indicator module connected to the main control module, wherein the charge level indicator module is used to indicate the charge level of the rechargeable battery.

[0016] Alternatively, it is provided that the starting power supply further comprises a lighting module connected to the main control module, wherein the lighting module is used for lighting.

[0017] Alternatively, the starting power supply is also intended to include a charging module for charging the rechargeable battery.

[0018] Alternatively, it is provided that a battery protection module is connected between the charging module and the rechargeable battery.

[0019] Alternatively, it is provided that the starting power supply further comprises a housing and a printed circuit board; wherein a receiving space for mounting the rechargeable battery and the printed circuit board is formed in the housing, wherein the main control module is integrated on the printed circuit board.

[0020] Alternatively, it is provided that the housing comprises an upper housing and a lower housing, wherein the interior of the upper housing and the lower housing forms the receiving space; wherein the housing is provided with a positive electrode charging terminal and a negative electrode charging terminal; wherein one end of the positive electrode charging terminal is connected to the positive electrode of the rechargeable battery and the other end is used for connection to the vehicle power connection; wherein one end of the negative electrode charging terminal is connected to the negative electrode of the rechargeable battery and the other end is used for connection to the vehicle power connection.

[0021] Alternatively, it is provided that the housing is provided with a positive electrode receiving portion for receiving the positive electrode charging terminal and a negative electrode receiving portion for receiving the negative electrode charging terminal.

[0022] Alternatively, it is provided that the upper housing is provided with a charge level indicator structure, wherein the charge level indicator structure comprises a number of light-emitting diodes connected to the main control module, wherein the main control module controls the switching on and off of the number of light-emitting diodes to indicate the charge level of the rechargeable battery.

[0023] Alternatively, it is provided that a number of separating elements protrude from the inner wall of the lower housing and are arranged at intervals from one another in order to mount a number of the rechargeable batteries.

[0024] Alternatively, it is provided that two adjacent separating elements are connected to a fastening element, wherein the fastening element is arranged in an arc shape towards the rechargeable battery and is thus adapted to the rechargeable battery.

[0025] The positive effect of the utility model is that by setting the charge level detection module, the charge level of the rechargeable battery is detected in real time. When the charge level of the rechargeable battery is below the preset charge level, the main control module controls the vehicle power connection to charge the rechargeable battery, thus enabling recharging of the rechargeable battery to ensure that the rechargeable battery has sufficient charge level, thereby effectively protecting the rechargeable battery and avoiding damage to the battery due to power loss.In addition, the temperature sensing module can detect the temperature of the rechargeable battery in real time. When the temperature of the rechargeable battery drops below a preset temperature, the main control module activates the heating module to heat the battery, thus maintaining the high-performance output of the rechargeable battery for starting the vehicle. Furthermore, by providing the lighting module, lighting can be provided to the user in outdoor areas or places with poor visibility, making it easier for the user to use. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an operational principle diagram of a vehicle-mounted starting power supply of an embodiment of the present utility model; Fig. 2 is a working diagram of the main control module, the charge level detection module, the temperature detection module, the heating module, and the charge level display module of an embodiment of the present invention; Fig. 3 is a working diagram of a rechargeable battery and a bidirectional control module of an embodiment of the present invention; Fig. 4 is a working diagram of a lighting module of an embodiment of the present utility model; Fig. 5 is a working diagram of a charging module of an embodiment of the present utility model; Fig. 6 is a working diagram of a battery protection module of an embodiment of the present utility model; Fig. 7 is a working diagram of a charging interface of an embodiment of the present invention; Fig. 8 is a schematic structural diagram of a vehicle-mounted starting power supply of an embodiment of the present utility model; Fig. 9 is a schematic exploded view of a vehicle-mounted starting power supply of an embodiment of the present invention in one direction; Fig. 10 is a schematic exploded view of a vehicle-mounted starting power supply of an embodiment of the present invention in another direction; Fig. 11 is a schematic structural diagram of an upper case, a charge level indicator structure, a positive electrode accommodating portion, and a negative electrode accommodating portion of a vehicle-mounted starting power supply of an embodiment of the present utility model. DETAILED DESCRIPTION

[0026] Sub-reference to Fig. 1 to Fig. 11, a vehicle-mounted starting power supply is used for electrically connecting to a vehicle power connector 31 to provide a starting voltage to the vehicle power connector 31 for starting the vehicle, the starting power supply comprising a main control module 10, a rechargeable battery 11 connected to the main control module 10, and a state of charge detection module 12 connected to the main control module 10 and the rechargeable battery 11; wherein the state of charge detection module 12 is used to detect the state of charge of the rechargeable battery 11 to generate a state of charge signal, and the state of charge signal is sent to the main control module 10;wherein the main control module 10 is used to receive the state of charge signal to determine a state of charge of the rechargeable battery 11, and electrical energy is drawn from the vehicle power terminal to recharge the rechargeable battery 11 when the state of charge of the rechargeable battery 11 is lower than a preset state of charge. It can be seen that the number of vehicle power terminals 31 is two, namely, a positive terminal and a negative terminal.

[0027] In the present embodiment, the vehicle-mounted starting power supply is an emergency power supply when the vehicle power connector 31 cannot start the vehicle, and the vehicle can be charged via the vehicle power connector 31 under the control of the main control module 11 (specifically, the battery device in the vehicle is charged). By setting the charge state detection module 12, the charge state of the rechargeable battery 11 is detected in real time.When the charge level of the rechargeable battery 11 is lower than the preset charge level, the main control module 10 timely controls the vehicle power connector 31 to recharge the rechargeable battery 11 so that the rechargeable battery 11 is fully charged. This can effectively protect the rechargeable battery 11 and prevent the rechargeable battery 11 from being damaged by power loss, thereby solving the problem that the existing rechargeable battery 11 requires an external charger for charging after being discharged several times. In the present embodiment, the rechargeable battery 11 is a lithium battery, and multiple lithium batteries are connected to achieve better energy storage and power supply.

[0028] In an embodiment, as shown in the Fig. 1 and Fig. 2, it is provided that the state of charge detection module 12 comprises a detection transistor Q3, a first resistor R8, a second resistor R9 and a first capacitor C21; wherein the main control module 10 outputs a control signal to control the detection transistor Q3 to turn on, wherein the voltage at the positive electrode of the rechargeable battery 11 is divided by a first resistor R8 and a second resistor R9, wherein one end of the detection transistor Q3 (ie, the end 2 of the detection transistor Q3 in Fig. 3) is used as a voltage divider point, and the voltage at the voltage divider point is filtered by the first capacitor C21 and then connected to the detection terminal of the main control module 10. When the voltage of the rechargeable battery changes, the voltage at the voltage divider point also changes accordingly, thereby realizing the state of charge detection of the rechargeable battery 11. The first capacitor C21 is used to filter the voltage at the voltage divider point, thereby reducing noise and ensuring high accuracy in the detection of the state of charge of the rechargeable battery.

[0029] In an embodiment, as shown in the Fig. 1 to 3, it is provided that the rechargeable battery 11 is electrically connected to the vehicle power connector 31 via the bidirectional control module 13; wherein the bidirectional control module 13 comprises a magnet holding relay K1, a forward control circuit connected to the main control module 10 and the magnet holding relay K1, and a reverse control circuit connected to the main control module and the magnet holding relay K1; wherein the forward control circuit is used to receive a forward control signal from the main control module 10 and to control the magnet holding relay K1 to close based on the forward control signal; wherein the reverse control circuit is used to receive a reverse control signal from the main control module 10 and to control the magnet holding relay K1 to open based on the reverse control signal.In the present embodiment, a forward control circuit is provided to control the magnetic holding relay to close; and a reverse control circuit is arranged to control the magnetic holding relay to open; the problem that the output of the rechargeable battery cannot be completely disconnected has been solved. The magnetic holding relay K1 does not require a continuous power supply to maintain the operating state, which can greatly reduce the waste of electrical energy. Furthermore, since the contact state of the magnetic holding relay K1 is maintained by the magnetic force generated by the permanent magnet, it can maintain the current state even after a power failure and does not require a continuous power supply, which can effectively improve stability. In one embodiment, the magnetic holding relay K1 is a bidirectional magnetic holding relay.

[0030] Specifically, the feedforward control circuit, as shown in Fig. 3, a forward transistor Q1, a first forward MOS transistor Q5 (G2S2D2) and a second forward MOS transistor Q4 (G1S1D1), wherein the forward transistor Q1 performs secondary control, so that the main control module 10 controls the first forward MOS transistor Q5 (G2S2D2) and the second forward MOS transistor Q4 (G1S1D1) to conduct, wherein the main control module 10 outputs the KS1 valid signal and the KS2 valid signal as forward control signals to control the magnet holding relay K1 to close.

[0031] The reverse control circuit includes an inverted transistor Q2, a first inverted MOS transistor Q4 (G2S2D2), and a second inverted MOS transistor Q5 (G1S1D1), wherein the inverted transistor Q2 performs secondary control, so that the main control module 10 controls the first inverted MOS transistor Q4 (G2S2D2) and the second inverted MOS transistor Q5 (G1S1D1) to conduct, wherein the main control module 10 outputs the KS3 valid signal and the KS4 valid signal as reverse control signals to control the solenoid holding relay K1 to open.

[0032] It should be noted that "forward" and "backward" are only used to describe the transmission direction of the signal and are not limited to this, so the KS1 valid signal and the KS2 valid signal can be used as backward control signals, at which time the KS3 valid signal and the KS4 valid signal are used as forward control signals.

[0033] In the present embodiment, a bidirectional control module 13 is connected between the vehicle power connector 31 and the rechargeable battery 11; the state of charge detection module 12 detects the state of charge of the rechargeable battery 11 in real time after the vehicle is started, with the bidirectional control module 13 remaining connected, and when the state of charge of the rechargeable battery 11 is lower than a preset state of charge, the main control module 10 draws electrical power from the vehicle power connector to recharge the rechargeable battery 11.

[0034] In the present embodiment, after the vehicle is started, the bidirectional control module 13 maintains connectivity even if the power supply is not continued, and when the charge level of the rechargeable battery 11 is low, the main control module 10 timely controls the vehicle power connector 31 to charge the rechargeable battery 11.

[0035] As in Fig. 2, the vehicle-mounted starting power supply further comprises a temperature sensing module 14 and / or a heating module 15 connected to the main control module 10; wherein the temperature sensing module 14 is used to detect the temperature of the rechargeable battery 11; wherein the heating module 15 is in contact with the rechargeable battery 11, wherein the main control module 10 activates the heating module 15 to heat the rechargeable battery 11 when the temperature of the rechargeable battery 11 falls below a preset temperature. Specifically, the working diagram of the temperature sensing module 14 and the heating module 15 is shown in Fig. 2. The temperature sensing module 14 includes an NTC sensor, which is in contact with the rechargeable battery 11 and is used to accurately detect the temperature of the rechargeable battery 11. The heating module 15 includes a heating fin that is in contact with the rechargeable battery 11. In other embodiments, the heating module 15 includes a heating wire, a heating film, a thermocouple, and so on, which are not limited here. Normally, in a low-temperature environment, the rechargeable battery 11 cannot ignite multiple times due to the too low temperature, and the output efficiency is very low.In this embodiment, the temperature of the rechargeable battery 11 is detected in real time, and the rechargeable battery 11 is automatically heated in a low-temperature environment, thereby ensuring that the rechargeable battery 11 is maintained at a suitable temperature, and the high-power output of the rechargeable battery 11 can be used to start the vehicle, but in the low-temperature environment, the rechargeable battery 11 may still ignite multiple times.

[0036] Specifically, when the temperature of the rechargeable battery 11 is lower than a preset temperature, the main control module 10 controls the heating module 15 to heat; when the temperature of the rechargeable battery 11 reaches the first heating temperature, the main control module 10 draws electrical power from the vehicle power connector 31 to recharge the rechargeable battery 11. When the temperature of the rechargeable battery 11 reaches the second heating temperature, the main control module 10 controls the heating module 15 to stop operation. Setting the first heating temperature ensures high-performance output of the rechargeable battery 11, and setting the second heating temperature allows the heating module 15 to automatically shut off heating to prevent overheating and damage to the rechargeable battery 11.Please note that the preset temperature, the first heating temperature, and the second heating temperature can be adjusted according to actual conditions, as long as the preset temperature is lower than the first heating temperature and the first heating temperature is lower than the second heating temperature. For example, the preset temperature is 5 degrees Celsius, the first heating temperature is 12 degrees Celsius, and the second heating temperature is 20 degrees Celsius.

[0037] As in Fig. 2, the vehicle-mounted starting power supply further includes a charge level indicator module 16 connected to the main control module 10, wherein the charge level indicator module 16 is used to display the charge level of the rechargeable battery 11. In the present embodiment, the charge level indicator module 16 is provided to allow the user to intuitively understand the remaining charge level of the rechargeable battery 11. Alternatively, the remaining charge level of the rechargeable battery 11 may also be announced by setting a sound.

[0038] As in Fig. As shown in Figure 4, the vehicle-mounted starting power supply further includes a lighting module 17 connected to the main control module 10, and the lighting module 17 is used for lighting. In the present embodiment, by providing the lighting module 17, it is convenient for users to have lighting outdoors or in places with poor visibility, and, for example, it is convenient for users to connect power lines in a clearly lit environment.

[0039] As in Fig. 5, the vehicle-mounted starting power supply also comprises a charging module 18 for recharging the rechargeable battery 11. In the present embodiment, the charging module 18 is equipped with a USB charging interface, wherein the recharging of the rechargeable battery 11 takes place via the USB charging interface.

[0040] As in Fig. As shown in Figure 6, the vehicle-mounted starting power supply is connected to a battery protection module 19 between the charging module 18 and the rechargeable battery 11. In the present embodiment, the battery protection module 19 has a current protection function for protecting the rechargeable battery 11.

[0041] In an embodiment, as shown in the Fig. 7 and Fig. 10, the vehicle-mounted starting power supply is further provided with a housing 20 and a circuit board 21; wherein a receiving space 203 for mounting the rechargeable battery 11 and the circuit board 21 is formed in the housing 20, and the main control module 10 is integrated on the circuit board 21. In the present embodiment, the main control module 10, the charge level detection module 12, the bidirectional control module 13, the temperature detection module 14, the heating module 15, the charge level display module 16, the lighting module 17, the charging module 18, and the battery protection module 19 are all integrated on the circuit board 21.In the present embodiment, a main control chip, a lighting chip, a battery protection chip, and a charging chip are integrated on the circuit board 21. The main control module 10, the charge level detection module 12, the bidirectional control module 13, the temperature detection module 14, the heating module 15, and the charge level display module 16 are all packaged on the main control chip. The lighting module 17 is packaged on the lighting chip, the charging module 18 is packaged on the charging chip, and the battery protection module 19 is packaged on the battery protection chip to ensure that each module operates efficiently. The main control chip uses low-current technology, which enables a longer standby time for the starting battery. Specifically, the power consumption of the main control chip is less than 50 milliwatts.

[0042] In an embodiment, as shown in the Fig. 9 to 11, the housing 20 includes an upper housing 201 and a lower housing 202 that fit together, and the interior of the upper housing 201 and the lower housing 202 forms the receiving space 203; the housing 20 is provided with a positive electrode charging terminal 22 and a negative electrode charging terminal 23; one end of the positive electrode charging terminal 22 is connected to the positive electrode of the rechargeable battery 11, and the other end is used for connection to the positive terminal of the vehicle power connector 31; one end of the negative electrode charging terminal 23 is connected to the negative electrode of the rechargeable battery 11, and the other end is used for connection to the negative terminal of the vehicle power connector 31.

[0043] The housing 20 is provided with a positive electrode receiving portion 24 for receiving the positive electrode charging terminal 22 and a negative electrode receiving portion 25 for receiving the negative electrode charging terminal 23. By providing the positive electrode receiving portion 24 and the negative electrode receiving portion 25 for receiving the positive electrode charging terminal 22 and the negative electrode charging terminal 23, better receiving of the positive electrode charging terminal 22 and the negative electrode charging terminal 23 is achieved and the positive electrode charging terminal 22 and the negative electrode charging terminal 23 can be protected from damage.

[0044] In an embodiment, as shown in the Fig.9 to 11, it is provided that the positive electrode receiving portion 24 includes a positive electrode groove 241 and a positive electrode lead groove 242 formed on the outer surface of the upper case 201, the positive electrode groove 241 being connected to the positive electrode lead groove 242 to accommodate the positive electrode charging terminal 22. The negative electrode receiving portion 25 includes a negative electrode groove 251 and a negative electrode lead groove 252 formed on the outer surface of the upper case 201, the negative electrode groove 251 being connected to the negative electrode lead groove 252 to accommodate the negative electrode charging terminal 23.In the present embodiment, the positive electrode charging terminal 22 comprises a positive electrode clip and a positive electrode lead wire, wherein the positive electrode clip is mounted in the positive electrode groove 241, and wherein the positive electrode groove 241 is adapted to the shape of the positive electrode clip, wherein the positive electrode lead wire is mounted in the positive electrode lead groove 242, wherein the positive electrode lead groove 242 is adapted to the shape of the positive electrode lead wire, thereby ensuring a better receiving effect and protecting the positive electrode charging terminal 22.Similarly, the negative electrode charging terminal 23 comprises a negative electrode clip and a negative electrode lead, wherein the negative electrode clip is mounted in the negative electrode groove 251, and wherein the negative electrode groove 251 is adapted to the shape of the negative electrode clip, wherein the negative electrode lead is mounted in the negative electrode lead groove 252, wherein the negative electrode lead groove 252 is adapted to the shape of the negative electrode lead, thereby ensuring a better receiving effect and protecting the negative electrode charging terminal 23.

[0045] The upper housing 201 is provided with a charge level indicator structure 26, wherein the charge level indicator structure 26 comprises a number of LEDs connected to the main control module 10, wherein the main control module 10 controls the switching on and off of one or more of the number of LEDs to indicate the charge level of the rechargeable battery 11. In the present embodiment, by setting a number of LEDs, the main control module 10 can determine the remaining charge level of the rechargeable battery 11 based on the charge level detection module 12, and wherein the light emission of the LED is controlled depending on the remaining charge level, so that the user can intuitively understand the remaining charge level of the rechargeable battery 11. It is understood that other methods for displaying the remaining charge level of the rechargeable battery 11 may also be used.For example, a voice prompt is used to remind the user of the remaining charge level of the rechargeable battery 11, or an interface is used to display the remaining charge level of the rechargeable battery 11, but this is not limited here.

[0046] A plurality of separators 27 protrude from the inner wall of the sub-case 202, and the plurality of separators 27 are spaced apart to mount a plurality of the rechargeable batteries 11. In the present embodiment, the plurality of rechargeable batteries 11 are separated by providing the separators 27 to better protect the rechargeable batteries 11 and prevent the plurality of rechargeable batteries 11 from being pressed against each other.

[0047] Two adjacent separating elements 27 are connected to a fastening element 28, wherein the fastening element 28 is arranged in an arcuate manner toward the rechargeable battery 11 and is thus adapted to the rechargeable battery 11. Two adjacent separating elements 27 are each connected to a number of fastening elements 28, thus ensuring a stable mounting of the rechargeable batteries 11 to the fastening elements 28, thereby ensuring a stable mounting of the rechargeable batteries 11 to the housing 20.

[0048] The working process of the vehicle-mounted starting power supply of the utility model is that the vehicle is started, the bidirectional control module 13 is connected, and the rechargeable battery 11 supplies electrical power to the vehicle. After starting, the bidirectional control module 13 remains connected, and the main control module 10 is used to output a control signal to control the detection transistor of the state-of-charge detection module 12 to turn on. The voltage at the positive electrode of the rechargeable battery 11 is divided by a first resistor and a second resistor, one end of the detection transistor is used as a voltage divider point, and the voltage at the voltage divider point is filtered by the first capacitor and then connected to the detection terminal of the main control module 10.When the battery voltage changes, the voltage at the voltage division point also changes accordingly, thereby realizing the charge level detection of the rechargeable battery 11. When the charge level of the rechargeable battery 11 is lower than the preset charge level, the main control module 10 controls the vehicle power port 31 to charge the rechargeable battery 11, thereby recharging the rechargeable battery 11 to effectively protect the rechargeable battery and prevent battery damage due to power loss.Furthermore, the temperature sensing module 14 can sense the temperature of the rechargeable battery 11 in real time. When the temperature of the rechargeable battery 11 drops below a preset temperature, the main control module 10 activates the heating module 15 to heat the battery. When the temperature of the rechargeable battery 11 reaches the first heating temperature, the main control module 10 draws electrical power from the vehicle power connector 31 to recharge the rechargeable battery 11. When the temperature of the rechargeable battery 11 reaches the second heating temperature, the main control module 10 controls the heating module 15 to stop operation. By setting the first heating temperature, the rechargeable battery 11 can be automatically heated, ensuring high-performance output of the rechargeable battery 11.Furthermore, the charge level indicator module 16 may be provided to provide the user with an intuitive understanding of the remaining charge level of the rechargeable battery 11. Furthermore, by providing the lighting module 17, the user can be provided with lighting in outdoor areas or in places with poor visibility, making it easier for the user to perform other operations.

Claims

[1] A vehicle-mounted starting power supply used for electrically connecting to a vehicle power connector to provide a starting voltage to the vehicle power connector for starting the vehicle, the starting power supply comprising a main control module (10), a rechargeable battery (11) connected to the main control module (10), and a state of charge sensing module (12) connected to the main control module (10) and the rechargeable battery (11); wherein the charge state detection module (12) is used to detect the charge state of the rechargeable battery (11) to generate a charge state signal, and the charge state signal is sent to the main control module (10); wherein the main control module (10) is used to receive the state of charge signal to determine a state of charge of the rechargeable battery (11), and electrical energy is drawn from the vehicle power connector to recharge the rechargeable battery (11) when the state of charge of the rechargeable battery (11) is lower than a preset state of charge. [2] A vehicle-mounted starting power supply according to claim 1, wherein the rechargeable battery (11) is electrically connected to the vehicle power connector via a bidirectional control module (13) to provide the starting voltage; wherein the bidirectional control module (13) comprises a magnetic holding relay, a forward control circuit connected to the main control module (10) and the magnetic holding relay, and a reverse control circuit connected to the main control module (10) and the magnetic holding relay; wherein the feedforward control circuit is used to receive a feedforward control signal from the main control module (10) and to control the magnet holding relay to close based on the feedforward control signal; wherein the reverse control circuit is used to receive a reverse control signal from the main control module (10) and to control the solenoid holding relay to open based on the reverse control signal; wherein the solenoid holding relay is a bidirectional solenoid holding relay. [3] A vehicle-mounted starting power supply according to claim 2, wherein the state of charge detection module (12) detects the state of charge of the rechargeable battery (11) in real time after starting the vehicle, the bidirectional control module (13) remaining connected, wherein the main control module (10) starts the vehicle power connection to recharge the rechargeable battery (11) when the state of charge of the rechargeable battery (11) is below the preset state of charge. [4] The vehicle-mounted starting power supply according to claim 1, wherein the state of charge detection module (12) comprises a detection transistor, a first resistor, and a second resistor; wherein the main control module (10) is used to output a control signal to control the detection transistor to turn on; wherein the voltage at the positive electrode of the rechargeable battery (11) is divided by the first and second resistors after the detection transistor is turned on, the voltage at one end of the detection transistor being connected to the detection terminal of the main control module (10). [5] A vehicle-mounted starting power supply according to claim 1, wherein the starting power supply also comprises a temperature sensing module (14) and / or a heating module (15) connected to the main control module (10); wherein the temperature detection module (14) is used to detect the temperature of the rechargeable battery (11); wherein the main control module (10) activates the heating module (15) to heat the rechargeable battery (11) when the temperature of the rechargeable battery (11) falls below a preset temperature. [6] The vehicle-mounted starting power supply according to claim 5, wherein the main control module (10) controls the state of charge of the rechargeable battery (11) to start the vehicle when the temperature of the rechargeable battery (11) reaches the first heating temperature; wherein the main control module (10) controls the heating module (15) to stop operation when the temperature of the rechargeable battery (11) reaches the second heating temperature; wherein the temperature detection module (14) comprises an NTC sensor in contact with the rechargeable battery (11) and used to detect the temperature of the rechargeable battery (11); wherein the heating module (15) comprises a heating fin in contact with the rechargeable battery (11). [7] The vehicle-mounted starting power supply according to claim 1, wherein the vehicle-mounted starting power supply further comprises a charge level indicator module (16) connected to the main control module (10), a lighting module (17) connected to the main control module (10), and a charging module (18) for charging the rechargeable battery (11), wherein the charge level indicator module (16) is used to display the charge level of the rechargeable battery (11), wherein the lighting module (17) is used for lighting, wherein a battery protection module (19) is connected between the charging module (18) and the rechargeable battery (11); wherein the vehicle-mounted starting power supply further comprises a housing (20) and a circuit board (21); wherein a receiving space (203) for mounting the rechargeable battery (11) and the circuit board (21) is formed in the housing (20), wherein the main control module (10) is integrated on the circuit board (21). [8] A vehicle-mounted starting power supply according to claim 7, wherein the housing (20) comprises an upper housing (201) and a lower housing (202), the interior of the upper housing (201) and the lower housing (202) forming the receiving space (203); wherein the housing (20) is provided with a positive electrode charging terminal (22) and a negative electrode charging terminal (23); wherein one end of the positive electrode charging terminal (22) is connected to the positive electrode of the rechargeable battery (11) and the other end is used for connection to the vehicle power terminal; wherein one end of the negative electrode charging terminal (23) is connected to the negative electrode of the rechargeable battery (11) and the other end is used for connection to the vehicle power terminal. [9] A vehicle-mounted starting power supply according to claim 8, wherein the housing (20) is provided with a positive electrode receiving portion (24) for receiving the positive electrode charging terminal (22) and a negative electrode receiving portion (25) for receiving the negative electrode charging terminal (23); wherein the upper housing (201) is provided with a charge state indicator structure (26), the charge state indicator structure (26) comprising a plurality of light-emitting diodes connected to the main control module (10), the main control module (10) controlling the turning on and off of one or more of the plurality of light-emitting diodes to indicate the charge state of the rechargeable battery (11). [10] A vehicle-mounted starting power supply according to claim 8, wherein a number of separating elements (27) protrude from the inner wall of the lower housing (202) and are arranged at intervals from one another to mount a number of the rechargeable batteries (11); wherein two adjacent separating elements (27) are connected to a fastening element (28), wherein the fastening element (28) is arranged in an arcuate shape towards the rechargeable battery (11) and is thus adapted to the rechargeable battery (11).

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