Startup power supply apparatus, parking startup power supply apparatus and vehicle power supply device

Abstract

A startup power supply apparatus, a parking startup power supply apparatus and a vehicle power supply device. The vehicle power supply device comprises the provided startup power supply apparatus and / or parking startup power supply apparatus. The startup power supply apparatus comprises 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 main control module is used for acquiring electric energy from a vehicle battery when the state of charge of the rechargeable battery is lower than a preset state-of-charge value, so as to perform reverse charging on the rechargeable battery.

Description

A starting power supply device, a parking starting power supply device, and an automotive power supply equipment.

[0001] This application claims priority to Chinese Patent Application No. _2025201738543, filed on January 24, 2025, entitled "A Reverse-Charging Starter Power Supply Device", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This invention relates to the field of power supply technology, and in particular to a starting power supply device, a parking starting power supply device, and an automotive power supply device. Background Technology

[0003] The car jump starter is a multi-functional portable power source developed for users who travel by car.

[0004] However, users have found that traditional jump starters have many problems in actual use: when the battery is low, it needs to be charged with a special external charging device, which is inconvenient and may not be possible in suburban areas; after being used for multiple ignitions, the battery capacity of the jump starter may become insufficient, which may lead to power depletion and damage if it cannot be charged in time; in low-temperature areas, the jump starter may not be able to ignite multiple times due to the low temperature; when idle for a long time, the jump starter itself consumes a lot of power; and the jump starter cannot be completely powered off. Summary of the Invention

[0005] To overcome the shortcomings of the prior art, the present invention provides a reverse-chargeable starting power supply device, a parking starting power supply device, and an automotive power supply device, which can use the car battery to charge the rechargeable battery when the rechargeable battery power is insufficient, so as to ensure that the rechargeable battery has sufficient power and protect the rechargeable battery.

[0006] The technical solution adopted by this invention to solve its technical problem is:

[0007] In a first aspect, the present invention provides a reverse-chargeable startup power supply device, comprising a main control module, a rechargeable battery connected to the main control module, and a power detection module connected to the main control module and the rechargeable battery;

[0008] The power detection module is used to detect the power of the rechargeable battery to generate a power signal, and send the power signal to the main control module;

[0009] The main control module is used to acquire the power signal to determine the power of the rechargeable battery, and when the power of the rechargeable battery is lower than the preset power, it obtains power from the car battery to reverse charge the rechargeable battery. The rechargeable battery is electrically connected to the car battery through the control module.

[0010] The beneficial effects of the starting power supply device provided by the present invention are as follows: by setting a power detection module, the power of the rechargeable battery is detected in real time. When the power of the rechargeable battery is lower than the preset power, the main control module controls the car battery to charge the rechargeable battery, thereby realizing reverse charging of the rechargeable battery to ensure that the rechargeable battery has sufficient power, effectively protecting the rechargeable battery and avoiding damage from battery depletion.

[0011] In a second aspect, the present invention provides a parking start power device, including a housing and a cover covering the housing, wherein a main control module and a battery holder are provided in the housing, and a rechargeable battery, a temperature detection module and a heating module are installed in the battery holder.

[0012] The temperature detection module is used to monitor the ambient temperature signal of the rechargeable battery.

[0013] The heating module is used to heat the space where the rechargeable battery is located in a low-temperature environment.

[0014] The main control module includes a control module and a power detection module. The power detection module is electrically connected to the rechargeable battery and is used to monitor the voltage signal of the rechargeable battery.

[0015] The control module is electrically connected to the power detection module, temperature detection module, heating module, rechargeable battery, and external power supply device, respectively. It is used to control the working state of the heating module according to the ambient temperature signal, and also to control the external power supply device to supply reverse power to the rechargeable battery according to the ambient temperature signal and voltage signal.

[0016] The beneficial effects of the parking jump starter device provided by this invention are as follows: By monitoring the ambient temperature of the rechargeable battery in real time through a temperature detection module, and in conjunction with a controllable heating module, the operating temperature of the rechargeable battery can be improved in low-temperature environments, preventing battery performance degradation caused by low temperatures and ensuring stable output of the battery even in low-temperature environments; at the same time, the control module can combine ambient temperature and voltage signals to control an external power supply device to provide reverse charging to the rechargeable battery, which can maintain sufficient charge of the rechargeable battery at any time, prevent battery damage from power depletion, adapt to the working requirements of different temperatures and charge states, effectively improve the working reliability of the parking jump starter, and extend battery life.

[0017] Thirdly, this application provides an automotive power supply device, including a starting power supply device and / or a parking starting power supply device provided in any embodiment of this application.

[0018] The beneficial effects of the automotive power supply device provided by this invention are as follows: This automotive power supply device integrates the technical advantages of the aforementioned reverse charging starter power supply device and / or parking starter power supply device. It can automatically complete reverse charging when the battery power is insufficient, and optimize the battery working state in low temperature environment. It can simultaneously adapt to the power needs of multiple scenarios such as car starting and parking, thus improving the overall working stability and reliability of the automotive power supply device, extending the overall service life of the device, and also improving the user experience. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. The accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 is a schematic diagram of the working principle of the starting power supply device according to Embodiment 1 of the present invention;

[0022] Figure 2 is a circuit diagram of the main control module, power detection module, temperature detection module, heating module and power display module of Embodiment 1 of the present invention;

[0023] Figure 3 is a working circuit diagram of a rechargeable battery and control module according to Embodiment 1 of the present invention;

[0024] Figure 4 is a working circuit diagram of another rechargeable battery and control module according to Embodiment 1 of the present invention;

[0025] Figure 5 is a circuit diagram of the lighting module in Embodiment 1 of the present invention;

[0026] Figure 6 is a circuit diagram of the charging module of Embodiment 1 of the present invention;

[0027] Figure 7 is a circuit diagram of the battery protection module in Embodiment 1 of the present invention;

[0028] Figure 8 is a working circuit diagram of the charging interface of Embodiment 1 of the present invention;

[0029] Figure 9 is a schematic diagram of the starting power supply device according to Embodiment 1 of the present invention;

[0030] Figure 10 is a split view of the starting power supply device in one direction according to Embodiment 1 of the present invention;

[0031] Figure 11 is a split view of the starting power supply device of Embodiment 1 of the present invention from another direction;

[0032] Figure 12 is a schematic diagram of the upper housing, power display structure, positive electrode storage slot and negative electrode storage slot of the power supply device according to Embodiment 1 of the present invention.

[0033] Figure 13 is a circuit diagram of the rechargeable battery and control module in Embodiment 2 of the present invention;

[0034] Figure 14 is a working circuit diagram of the rechargeable battery and control module according to Embodiment 3 of the present invention;

[0035] Figure 15 is a circuit diagram of the rechargeable battery and control module in Embodiment 4 of the present invention;

[0036] Figure 16 is a structural schematic diagram of the parking start power device provided by the present invention;

[0037] Figure 17 is a schematic diagram of the electronic control logic structure of the parking start power supply device provided by the present invention.

[0038] Figure 18 is a circuit diagram of the power detection module of the present invention;

[0039] Figure 19 is an exploded structural diagram of the parking starter power device provided by the present invention.

[0040] Figure 20 is a second exploded structural diagram of the parking starter power device provided by the present invention;

[0041] Figure 21 is an exploded structural diagram of the GPS box provided by the present invention;

[0042] Figure 22 is a second exploded structural diagram of the GPS box provided by the present invention;

[0043] Figure 23 is a circuit diagram of the main control module, power detection module, temperature detection module and heating module provided in an embodiment of the present invention;

[0044] Figure 24 is a working circuit diagram of a rechargeable battery and a main control module according to an embodiment of the present invention;

[0045] Figure 25 is a working circuit diagram of another rechargeable battery and main control module provided in an embodiment of the present invention;

[0046] Figure 26 is a schematic block diagram of an automotive power supply device according to an embodiment of the present invention;

[0047] Figure 27 is a schematic block diagram of another automotive power supply device provided in an embodiment of the present invention;

[0048] Figure 28 is a schematic block diagram of another automotive power supply device provided in an embodiment of the present invention.

[0049] Among them, 1000 is the automotive power supply equipment; 100 is the starting power device; 10 is the main control module; 11 is the rechargeable battery; 12 is the power detection module; 13 is the control module; 14 is the temperature detection module; 15 is the heating module; 16 is the power display module; 17 is the lighting module; 18 is the charging module; 19 is the battery protection module; 20 is the housing; 201 is the upper housing; 202 is the lower housing; 203 is the receiving cavity; 21 is the circuit board; 22 is the positive charging clip; 23 is the negative charging clip; 24 is the positive charging slot; 241 is the positive charging groove; 242 is the positive charging wire groove; 25 is the negative charging slot; 251 is the negative charging groove; 252 is the negative charging wire groove; 26 is the power display structure; 27 is the separator; and 28 is the fixing component. 200. Parking starter power supply; 30. Box body; 31. Battery holder; 3111. Rechargeable battery; 3112. Temperature detection module; 3113. Heating module; 3114. Power display module; 32. Mounting plate; 40. Cover; 41. First terminal; 42. Second terminal; 43. Force start button switch; 44. Waterproof and breathable valve; 50. Main control module; 51. Control module; 52. Power detection module; 60. External power supply device; 70. Aerosol fire extinguishing module; 80. GPS box; 81. Bottom shell; 82. Shell plate; 821. Marking plate; 822. First mounting area; 823. Second mounting area; 824. Removal and installation port; 825. Second waterproof sealing ring; 826. Cover plate; 83. First waterproof sealing ring; 84. First receiving cavity; 841. GPS module; 842. Bluetooth module; 843. Through port; 844. Ribbon cable; 85. Second receiving cavity; 851. Conductive post; 852. Fuse; 853. Mounting port; 13a. First control unit; 13b. Second control unit; 13c. Voltage divider circuit. Detailed Implementation

[0050] Example 1

[0051] Referring to Figures 1 to 12, a reverse-charging starter power supply device includes a main control module 10, a rechargeable battery 11 connected to the main control module 10, and a power detection module 12 connected to the main control module 10 and the rechargeable battery 11. The power detection module 12 is used to detect the power level of the rechargeable battery 11 to generate a power signal and send the power signal to the main control module 10. The main control module 10 is used to acquire the power signal to determine the power level of the rechargeable battery 11, and when the power level of the rechargeable battery 11 is lower than a preset power level, it draws electrical energy from the car battery to reverse charge the rechargeable battery 11.

[0052] In this embodiment, the starting power device serves as an emergency auxiliary power source when the car battery fails to start. It can charge the car battery via the main control module 10. By setting up a power detection module 12, the power level of the rechargeable battery 11 is monitored in real time. When the power level of the rechargeable battery 11 falls below a preset level, the main control module 10 promptly controls the car battery to reverse charge the rechargeable battery 11, ensuring the rechargeable battery 11 is fully charged. This effectively protects the rechargeable battery 11, preventing damage from power depletion and solving the problem of existing rechargeable batteries requiring external charging after multiple attempts to start. In this embodiment, the rechargeable battery 11 is a lithium battery, and several lithium batteries are connected to achieve better energy storage and supply.

[0053] In one embodiment, as shown in Figures 1 and 2, the power detection module 12 includes a detection transistor Q3, a first resistor R8, a second resistor R9, and a first capacitor C21. The main control module 10 outputs a control signal to turn on the detection transistor Q3. The positive terminal of the rechargeable battery 11 is divided by the first resistor R8 and the second resistor R9. One end of the detection transistor Q3 (i.e., end 2 of the detection transistor Q3 in Figure 3) serves as the voltage divider point. The voltage at the voltage divider point is filtered by the first capacitor C21 and then connected to the detection port of the main control module 10. As the rechargeable battery voltage changes, the voltage at the voltage divider point also changes, thus realizing the power detection of the rechargeable battery 11. By setting the first capacitor C21 to filter the voltage at the voltage divider point, noise is reduced, ensuring high accuracy of the detected rechargeable battery power.

[0054] In one embodiment, as shown in Figures 1 to 4, the rechargeable battery 11 is electrically connected to the car battery through the control module 13; the control module 13 can be a bidirectional control module.

[0055] Specifically, the control module 13 includes a magnetic latching relay K1, a forward control circuit connected to the main control module 10 and the magnetic latching relay K1, and a reverse control circuit connected to the main control module and the magnetic latching relay K1. The forward control circuit receives a forward control signal from the main control module 10 and controls the magnetic latching relay K1 to close based on the forward control signal. The reverse control circuit receives a reverse control signal from the main control module 10 and controls the magnetic latching relay K1 to open based on the reverse control signal. In this embodiment, by setting a forward control circuit to control the magnetic latching relay to close and a reverse control circuit to control the magnetic latching relay to open, the problem of the rechargeable battery output not being completely disconnected is solved. The magnetic latching relay K1 does not require continuous power supply to maintain its working state, which can significantly reduce energy waste. Furthermore, since the contact state of the magnetic latching relay K1 is maintained by the magnetic force generated by a permanent magnet, it can maintain its current state even after power failure, without requiring continuous power supply, which can effectively improve stability.

[0056] In one embodiment, the magnetic latching relay K1 is a bidirectional magnetic latching relay.

[0057] Specifically, as shown in Figures 3 and 4, the forward control circuit includes a forward transistor Q1, a first forward MOSFET Q5 (G2S2D2), and a second forward MOSFET Q4 (G1S1D1). The forward transistor Q1 performs two-stage control, enabling the main control module 10 to control the first forward MOSFET Q5 (G2S2D2) and the second forward MOSFET Q4 (G1S1D1) to conduct. The main control module 10 outputs valid signals KS1 and KS2 as forward control signals to control the magnetic latching relay K1 to close.

[0058] The reverse control circuit includes a reverse transistor Q2, a first reverse MOSFET Q4 (G2S2D2), and a second reverse MOSFET Q5 (G1S1D1). The reverse transistor Q2 performs two-stage control, enabling the main control module 10 to control the first reverse MOSFET Q4 (G2S2D2) and the second reverse MOSFET Q5 (G1S1D1) to conduct. The main control module 10 outputs valid signals KS3 and KS4 as reverse control signals to control the magnetic latching relay K1 to disconnect.

[0059] It should be noted that "forward" and "reverse" are only used to describe the direction of signal transmission and are not limited. Therefore, valid signals KS1 and KS2 can be used as reverse control signals, while valid signals KS3 and KS4 can be used as forward control signals.

[0060] In this embodiment, a control module 13 is connected between the car battery and the rechargeable battery 11. After the car is started, the power detection module 12 detects the power of the rechargeable battery 11 in real time, the control module 13 remains connected, and the main control module 10 obtains power from the car battery to reverse charge the rechargeable battery 11 when the power of the rechargeable battery 11 is lower than the preset power.

[0061] In this embodiment, after the car is started, even if the power supply is not continued, the control module 13 remains connected. When the charge battery 11 is low, the main control module 10 promptly controls the car battery to charge the charge battery 11.

[0062] As shown in Figure 4, the design concept of relay control of the positive circuit and negative ground remains unchanged is adopted. This not only preserves the integrity of the original vehicle's negative ground circuit, but also achieves voltage stabilization and filtering through the integrated supercapacitor (composed of C, R, and Q in Figure 4) on the board end, avoiding the generation of load dump pulse when the relay is disconnected, and protecting the original vehicle electrical components from instantaneous reverse voltage / current surges.

[0063] In Figure 4, relay K1 is used to control the connection between the rechargeable battery 11 (BT1~BT3) and the positive terminal of the car battery, while the negative terminal is directly grounded (BAT-), without damaging the original negative terminal circuit of the car.

[0064] The supercapacitor C acts as an energy storage buffer unit, absorbing / releasing electrical energy at the moment the relay is switched on and off, thus smoothing voltage fluctuations.

[0065] The switching transistor Q acts as a controlled switch for the charging and discharging of the supercapacitor, and works in conjunction with the resistor R to achieve timing control of the charging and discharging. For example, the switching transistor Q can be an NPN transistor, or it can be arbitrarily selected according to actual needs; this application does not impose any limitations on this.

[0066] The resistor R is used to limit the charging and discharging current of the supercapacitor to prevent overcurrent damage to the device, and also to set the charging and discharging time constant.

[0067] When the main control module outputs a high-level signal to the base of Q, Q becomes saturated and conducts. The supercapacitor C is connected to the car battery / rechargeable battery circuit through Q and R, and enters the charging stage.

[0068] When the main control module outputs a low-level signal to the base of Q, Q is cut off, and the supercapacitor C is physically isolated from the main power supply circuit, discharging slowly only through R, entering the voltage regulation and filtering stage. By precisely controlling the timing of the supercapacitor's connection, direct impact with the main circuit is avoided at the moment the relay engages / disengages.

[0069] When Q is turned on, the electrical energy of the car battery / rechargeable battery charges C through Q and R. The voltage across the capacitor gradually rises to match the voltage of the main circuit, thus completing energy storage.

[0070] When relay K1 disconnects (load dump scenario), the main circuit voltage drops instantaneously. Capacitor C slowly discharges through resistor R to the ground terminal (BAT-), releasing stored energy to fill the voltage gap and prevent peak negative voltage or overshoot voltage in the main circuit. The supercapacitor C acts as a "voltage buffer," absorbing the energy surge when the relay disconnects, smoothing the voltage waveform, and eliminating load dump pulses.

[0071] Resistor R is used to limit the initial current of the supercapacitor C during charging, preventing large current surges that could impact transistor Q and other main circuit components. Resistor R and supercapacitor C together determine the charge / discharge time constant τ = R × C. By adjusting the values ​​of R and C, the charging and discharging speed of the supercapacitor is controlled to match the relay's on / off timing, ensuring timely energy release during load dumping. This balances charging efficiency with voltage regulation, preventing overcurrent damage while maintaining a fast voltage response.

[0072] When the alternator is working normally while the car is in motion and relay K1 suddenly disconnects (such as after the starting power supply has completed its recharging), the traditional circuit will experience a load dump phenomenon due to the sudden removal of the load—the main circuit voltage will surge to a pulse that far exceeds the rated value, which can easily burn out the original vehicle electrical components such as the ECU and headlights.

[0073] This embodiment maintains the continuity of the original vehicle's negative circuit by always grounding the negative terminal, thus avoiding additional voltage fluctuations caused by a disconnection of the negative circuit.

[0074] Before relay K1 disconnects, C is fully charged; at the moment of disconnection, C discharges to the ground terminal through R, releasing energy to smooth the voltage drop in the main circuit, while absorbing the remaining energy output by the generator, keeping the voltage fluctuation within a safe range.

[0075] With Q cutoff, C discharges slowly through R, and the discharge time constant is much greater than the duration of the load dump pulse, ensuring continuous voltage stabilization during the pulse peak period and preventing instantaneous reverse pulses.

[0076] When the supercapacitor C is charged to the rated voltage of the main circuit, the base level of Q is pulled low, Q is automatically cut off, and the charging circuit is disconnected to prevent C from overcharging. The current limiting effect of resistor R further prevents overcharging current, and together with the voltage detection logic of the main control module, achieves dual overcharge protection. When relay K1 is disconnected, the supercapacitor circuit and the original vehicle circuit form an independent voltage regulation branch, which does not affect other functions of the main circuit, and only intervenes in voltage regulation and filtering at the moment of load dump.

[0077] Meanwhile, the supercapacitor C may include a capacitor module consisting of multiple capacitors connected in parallel. The embodiments of this application do not limit the number of capacitors included in the supercapacitor C.

[0078] As shown in Figure 2, the reverse-chargeable starting power supply device further includes a temperature detection module 14 and / or a heating module 15 connected to the main control module 10. The temperature detection module 14 is used to detect the temperature of the rechargeable battery 11. The heating module 15 is in contact with the rechargeable battery 11. When the temperature of the rechargeable battery 11 is lower than a preset temperature, the main control module 10 activates the heating module 15 to heat the rechargeable battery 11. Specifically, please refer to Figure 2 for the working circuit diagram of the temperature detection module 14 and the heating module 15. The temperature detection 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 element in contact with the rechargeable battery 11. In other embodiments, the heating module 15 includes a heating wire, a heating film, and a thermocouple, etc., which are not limited here. Under normal circumstances, in low-temperature environments, due to the low temperature, the rechargeable battery 11 cannot be fired multiple times, resulting in very low output efficiency. In this embodiment, the temperature of the rechargeable battery 11 is detected in real time, and the rechargeable battery 11 is automatically heated in low-temperature environments to ensure that the rechargeable battery 11 is kept at an appropriate temperature, so that the rechargeable battery 11 can output high-rate power to start the car. In low-temperature environments, the rechargeable battery 11 can still start the car multiple times.

[0079] Specifically, when the temperature of the rechargeable battery 11 is lower than the preset temperature, the main control module 10 controls the heating module 15 to heat up; when the temperature of the rechargeable battery 11 reaches the first heating temperature, the main control module 10 obtains electrical energy from the car battery to reverse charge 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 working. By setting the first heating temperature, the high-rate output of the rechargeable battery 11 is guaranteed; by setting the second heating temperature, the heating module 15 can be automatically stopped to prevent overheating and damage to the rechargeable battery 11. It should be noted that the preset temperature, the first heating temperature, and the second heating temperature can be set according to the actual situation, 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. As an 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.

[0080] As shown in Figure 2, the reverse-charging starter power supply device also includes a power display module 16 connected to the main control module 10. The power display module 16 is used to display the power level of the rechargeable battery 11. In this embodiment, by setting the power display module 16, the user can intuitively understand the remaining power level of the rechargeable battery 11. In other ways, the remaining power level of the rechargeable battery 11 can also be announced via audio.

[0081] As shown in Figure 5, the reverse-chargeable starting power supply device also includes a lighting module 17 connected to the main control module 10. The lighting module 17 is used for illumination. In this embodiment, by setting up the lighting module 17, it is convenient for users to have lighting outdoors and in places with poor visibility. For example, it can facilitate users to connect to the power supply line in a well-lit environment.

[0082] As shown in Figure 6, the reverse-chargeable startup power supply device further includes a charging module 18 for reverse charging the rechargeable battery 11. In this embodiment, the charging module 18 is provided with a USB charging interface, which enables reverse charging of the rechargeable battery 11.

[0083] As shown in Figure 7, a battery protection module 19 is connected between the charging module 18 and the rechargeable battery 11 in a reverse-chargeable starting power supply device. In this embodiment, the battery protection module 19 has a current protection function to protect the rechargeable battery 11.

[0084] In one embodiment, as shown in Figures 8 and 11, the reverse-chargeable starting power supply device further includes a housing 20 and a circuit board 21; a receiving cavity 203 is formed within the housing 20 to house the rechargeable battery 11 and the circuit board 21, and the main control module 10 is integrated on the circuit board 21. In this embodiment, the main control module 10, the power detection module 12, the control module 13, the temperature detection module 14, the heating module 15, the power 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 this embodiment, the circuit board 21 integrates a main control chip, a lighting chip, a battery protection chip, and a charging chip, wherein the main control module 10, the power detection module 12, the control module 13, the temperature detection module 14, the heating module 15, and the power display module 16 are all encapsulated on the main control chip, the lighting module 17 is encapsulated on the lighting chip, the charging module 18 is encapsulated on the charging chip, and the battery protection module 19 is encapsulated on the battery protection chip to ensure efficient operation of each module. The main control chip uses low-power technology, which can maintain a longer standby time for the startup battery. Specifically, the power consumption of the main control chip is less than 50 milliwatts.

[0085] In one embodiment, as shown in Figures 10 to 12, the housing 20 includes a matching upper housing 201 and a lower housing 202, and the receiving cavity 203 is formed inside the upper housing 201 and the lower housing 202; a positive charging clip 22 and a negative charging clip 23 are provided on the housing 20; one end of the positive charging clip 22 is connected to the positive terminal of the rechargeable battery 11, and the other end is used to connect to the car battery; one end of the negative charging clip 23 is connected to the negative terminal of the rechargeable battery 11, and the other end is used to connect to the car battery.

[0086] The housing 20 is provided with a positive electrode storage slot 24 for accommodating the positive electrode charging clip 22 and a negative electrode storage slot 25 for accommodating the negative electrode charging clip 23. By providing the positive electrode storage slot 24 and the negative electrode storage slot 25 to respectively accommodate the positive electrode charging clip 22 and the negative electrode charging clip 23, the positive electrode charging clip 22 and the negative electrode charging clip 23 can be better stored, and the positive electrode charging clip 22 and the negative electrode charging clip 23 can be protected from damage.

[0087] In one embodiment, as shown in Figures 10 to 12, the positive electrode storage slot 24 includes a positive electrode groove 241 and a positive electrode wire groove 242 formed on the outer surface of the upper housing 201. The positive electrode groove 241 and the positive electrode wire groove 242 are connected to accommodate the positive electrode charging clip 22. The negative electrode storage slot 25 includes a negative electrode groove 251 and a negative electrode wire groove 252 formed on the outer surface of the upper housing 201. The negative electrode groove 251 and the negative electrode wire groove 252 are connected to accommodate the negative electrode charging clip 23. In this embodiment, the positive electrode charging clip 22 includes a positive electrode clip and a positive electrode connecting wire. The positive electrode clip is installed in the positive electrode groove 241, and the shape of the positive electrode groove 241 is adapted to the shape of the positive electrode clip. The positive electrode connecting wire is installed in the positive electrode wire groove 242, and the shape of the positive electrode wire groove 242 is adapted to the shape of the positive electrode connecting wire, ensuring better storage effect and protecting the positive electrode charging clip 22. Similarly, the negative charging clip 23 includes a negative clip and a negative connecting wire. The negative clip is installed in the negative groove 251, and the shape of the negative groove 251 is adapted to the shape of the negative clip. The negative connecting wire is installed in the negative wire groove 252, and the shape of the negative wire groove 252 is adapted to the shape of the negative connecting wire, ensuring better storage effect and protecting the negative charging clip 23.

[0088] The upper housing 201 is provided with a power display structure 26, which includes a plurality of light-emitting diodes (LEDs) connected to the main control module 10. The main control module 10 controls one or more of the LEDs to be energized or de-energized to display the power level of the rechargeable battery 11. In this embodiment, by setting a plurality of LEDs, the main control module 10 determines the remaining power level of the rechargeable battery 11 based on the power detection module 12 and controls the LEDs corresponding to the remaining power level to light up, so that the user can intuitively understand the remaining power level of the rechargeable battery 11. It is understood that other methods can also be used to display the remaining power level of the rechargeable battery 11, such as using voice broadcast to remind the user of the remaining power level of the rechargeable battery 11, or using an interface to display the remaining power level of the rechargeable battery 11, which is not limited here.

[0089] The inner wall of the lower housing 202 is provided with a plurality of partitions 27, which are arranged at intervals to accommodate a plurality of rechargeable batteries 11. In this embodiment, the partitions 27 are used to separate the rechargeable batteries 11 to better protect them and prevent them from squeezing against each other.

[0090] Adjacent partitions 27 are connected to fixing members 28, which are arranged in an arc shape facing the rechargeable battery 11 to fit the rechargeable battery 11. Several fixing members 28 are connected to adjacent partitions 27 to ensure that the rechargeable battery 11 is stably installed on the fixing members 28, thus ensuring that the rechargeable battery 11 is stably installed on the housing 20.

[0091] The working process of the reverse-chargeable starting power supply device of the present invention is as follows: When the car is started, the control module 13 is connected, and the rechargeable battery 11 provides power to the car. After startup, the control module 13 remains connected, and the main control module 10 outputs a control signal to control the detection transistor Q3 of the power detection module 12 to conduct. The positive terminal of the rechargeable battery 11 is divided by a first resistor R8 and a second resistor R9. One end of the detection transistor Q3 serves as the voltage divider point. The voltage at the voltage divider point is filtered by the first capacitor C21 and then connected to the detection port of the main control module 10. As the battery voltage changes, the voltage at the voltage divider point also changes, thereby realizing the power detection of the rechargeable battery 11. When the power of the rechargeable battery 11 is lower than the preset power, the main control module 10 controls the car battery to charge the rechargeable battery 11, realizing reverse charging of the rechargeable battery 11, so as to effectively protect the rechargeable battery and avoid damage from battery depletion. Furthermore, by setting a temperature detection module 14, the temperature of the rechargeable battery 11 can be monitored in real time. When the temperature of the rechargeable battery 11 is lower than 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 a first heating temperature, the main control module 10 obtains electrical energy from the car battery to reverse charge the rechargeable battery 11. When the temperature of the rechargeable battery 11 reaches a second heating temperature, the main control module 10 controls the heating module 15 to stop working. By setting a first heating temperature, automatic heating of the rechargeable battery 11 can be achieved, ensuring high-rate output of the rechargeable battery 11. Furthermore, by setting a power display module 16, users can intuitively understand the remaining power of the rechargeable battery 11. Furthermore, by setting a lighting module 17, lighting can be provided for users outdoors or in places with poor visibility, facilitating other operations.

[0092] In some embodiments, as shown in Figures 3 and 4, the core of the control module 13 is a parallel redundant architecture of multiple bistable magnetic latching relays, with a thick copper bar bus design. For example, 10 bistable magnetic latching relays with a rated continuous overcurrent of 90A and a peak current withstand capability of 480A can be connected in parallel with the same pole. After parallel connection, the rated continuous overcurrent capability of the whole machine reaches 900A and the peak current withstand capability reaches 4800A.

[0093] For heavy-duty truck starting scenarios, the continuous operating current of a typical heavy-duty truck starting is 400-500A, and the peak starting current is about 2000A. This design has a continuous overcurrent redundancy of more than 1.8 times and a peak overcurrent redundancy of more than 2.4 times, achieving a starting current redundancy design of more than 1 times.

[0094] All magnetic latching relays use T2 high-conductivity copper strips with a thickness of ≥2.5mm for parallel busing at their input and output contacts. The copper strips are laser-welded in pairs, forming the positive input bus and the positive output bus, respectively. The welding contact area between a single relay pin and the copper strip is ≥10mm². 2 The overall circuit contact resistance is ≤0.1mΩ.

[0095] This design can significantly reduce the conduction voltage drop and local heat generation under high current. The current carrying capacity of the copper strip itself is perfectly matched with the total overcurrent capacity of the relay, with no current bottleneck. With the ultra-high current redundancy, the current shunt of a single relay is only about 50A when it is actually working, which is only 55% of the rated value. The contact temperature rise is ≤10K, which is far below the national standard temperature rise limit. Therefore, there is no need to design additional heat sinks, fans and other heat dissipation structures, which simplifies the protection board structure and reduces the overall cost.

[0096] By employing a bistable magnetic latching relay, only a 20ms pulse drive current is needed during the opening and closing actions, with a single operation power consumption of only 0.012Wh. In the conducting state, there is no need to continuously power the coil to maintain contact engagement, and the relay's own conduction power consumption is close to zero. Compared to the continuous holding power consumption of 3W for 10 traditional normally open electromagnetic relays connected in parallel, this solution can reduce the overall standby power consumption of the protection board to below 50mW, solving the problems of long-term power consumption during static operation and battery depletion associated with traditional solutions, while also avoiding aging and failure caused by continuous coil heating.

[0097] With a redundant architecture of 10 relays connected in parallel, it possesses single-point fault tolerance capability. Even if 1-3 relay contacts become open-circuited and fail during use, the remaining intact relays can still provide a continuous overcurrent capacity of over 630A and a peak current withstand capacity of over 3360A, far exceeding the 2000A peak starting requirement of heavy trucks. This completely does not affect the normal starting of the vehicle or the normal operation of the protection board, avoiding the problem of a single relay failure causing the entire unit to fail. Thanks to the ultra-high current redundancy, the relays always operate in a low load rate state, fundamentally avoiding the problem of contact welding and sticking caused by overload and overheating, and significantly extending the service life of the relays and protection board.

[0098] All parallel magnetic latching relays have their input busbars connected to the positive terminal of the rechargeable battery 11, and their output busbars connected to the positive charging clip 22. The negative terminal of the rechargeable battery 11 is directly grounded to the negative terminal of the car battery through the negative charging clip 23. The positive terminal is controlled by the relays, which does not damage the original negative grounding circuit. At the same time, the bidirectional conduction of the relays can simultaneously meet the dual working conditions of forward starting and discharging and reverse battery charging, without the need to add an additional reverse circuit.

[0099] In addition to hardware redundancy design, this embodiment achieves dual protection of hardware and software through the multi-level overcurrent protection program built into the main control module 10, taking into account both startup performance and service life. The specific protection logic is as follows:

[0100] The main control module 10 collects the loop current in real time through the manganese-copper shunt, and combines it with the relay and copper bar temperatures collected by the temperature detection module 14 to perform four-level protection:

[0101] Level 1 warning protection: When the continuous current of the circuit exceeds 600A (66% of the rated continuous overcurrent) and the duration exceeds 2s, the main control module triggers an audible and visual warning, and the LED light of the power display module 16 flashes to remind the user that the current load is too large and to avoid continuous overload;

[0102] Level 2 current limiting protection: When the continuous current of the circuit exceeds 750A (83% of the rated continuous overcurrent) and the duration exceeds 500ms, the main control module will link with the battery protection module 19 to trigger the current limiting function, limit the peak output current, and prevent the relay from working at the rated load limit for a long time.

[0103] Three-level instantaneous overcurrent protection: When the peak current of the circuit exceeds 3000A (62.5% of the rated peak current withstand) and the duration exceeds 10ms, the main control module immediately outputs a disconnect pulse to drive all magnetic latching relays to disconnect synchronously, cut off the output, and avoid contact welding caused by large current impact.

[0104] Level 4 short circuit protection: When the circuit current exceeds 4000A, the hardware short circuit protection + software emergency disconnect command is immediately triggered, the output is cut off within 1ms, and the relay drive circuit is locked. It can only be restored after manual reset, so as to avoid damage to the battery and protection board by short circuit fault.

[0105] Meanwhile, the protection logic is linked to the temperature detection module 14. When the temperature of the relay copper bar exceeds 70°C, the overheat protection is immediately triggered, the relay is disconnected, and overheating damage is avoided. This forms a complete temperature protection system with the aforementioned high and low temperature protection logic for charging and discharging.

[0106] For example, the full-function linkage workflow of this embodiment with the aforementioned power supply device is as follows:

[0107] Start-up preparation phase: The user connects to the car battery through the positive charging clip 22 and the negative charging clip 23. After the main control module 10 detects that the battery voltage is normal, it outputs a synchronous pull-in pulse to drive all parallel magnetic latching relays to pull in synchronously and the circuit is connected.

[0108] During vehicle startup: the charging battery 11 outputs a large starting current to the car battery through a parallel relay and a thick copper busbar to start the vehicle; during startup, the main control module monitors the circuit current and temperature in real time and executes multi-level overcurrent protection logic.

[0109] Reverse charging phase: After the vehicle is started, the power detection module 12 monitors the power of the charging battery 11 in real time. When the power is lower than the preset value, the main control module maintains the relay in the energized state and controls the car battery to charge the charging battery 11 in reverse through the same relay circuit to replenish the power.

[0110] Shutdown disconnection phase: After startup and recharging are completed, the main control module outputs a synchronous disconnection pulse to drive all magnetic latching relays to disconnect synchronously, completely cutting off the connection between the rechargeable battery and the external circuit. There is no leakage current and no static power consumption, avoiding long-term static power consumption of the battery.

[0111] Example 2

[0112] Please refer to Figures 1, 10 and 13. The main difference between the reverse-chargeable starting power supply device provided in Embodiment 2 of this application and Embodiment 1 is that the structure of the control module 13 is different.

[0113] In Embodiment 2, the control module 13 is used to connect between the negative terminal of the rechargeable battery 11 and the negative terminal of the car battery. Specifically, the two ends of the control module 13 can be connected to the negative terminal BAT- of the rechargeable battery 11 and the negative charging clip 23, respectively. The control module 13 is also electrically connected to the main control module 10 and is used to selectively connect or disconnect the electrical connection between the negative terminal BAT- of the rechargeable battery 11 and the negative charging clip 23 under the control of the main control module 10.

[0114] The control module 13 includes a transistor Qa and a first control unit 13a connected between the control terminal of the transistor Qa and the main control module 10. The two conducting terminals of the transistor Qa are respectively connected to the negative terminal BAT- of the rechargeable battery 11 and the negative charging clip 23. The first control unit 13a is used to control the transistor Qa to be turned on or off under the control of the first control signal KS2 output by the main control module 10, thereby controlling whether the negative terminal BAT- of the rechargeable battery 11 is electrically connected to the negative charging clip 23.

[0115] Specifically, the first control unit 13a includes a first switch Q7 and a second switch Q6. The control terminal of the first switch Q7 is electrically connected to the main control module 10 to receive the first control signal KS2. The two conducting terminals of the first switch Q7 are respectively grounded and electrically connected to the control terminal of the second switch Q6. The two conducting terminals of the second switch Q6 are respectively electrically connected to the control terminal of the transistor Qa and the positive terminal BAT+ of the rechargeable battery 11.

[0116] The second switch Q6 is also electrically connected to the main control module 10 near the conducting terminal of the negative charging clip 23, so that the main control module 10 can detect the voltage and / or current of the negative charging clip 23 (that is, the voltage and / or current of the car battery), and control the output of the first control signal KS2 based on the voltage and / or current of the car battery, thereby controlling the transistor Qa to be turned on or off.

[0117] The transistor Qa is a metal-oxide-semiconductor field-effect transistor, which has good switching performance and can effectively connect or disconnect the car battery and the negative charging clip 23. In this embodiment, the transistor Qa is an N-MOSFET, and both the first switching transistor Q7 and the second switching transistor Q6 are NPN transistors.

[0118] The first control unit 13a further includes a first unidirectional diode D1a, which is connected to the positive terminal BAT+ of the rechargeable battery 11 and the end of the first switching transistor Q7 furthest from the transistor Qa. It is understood that the first unidirectional diode D1a helps to prevent voltage reverse flow and improves the safety and stability of the overall circuit.

[0119] When the reverse-chargeable starting power supply device is working, the positive charging clip 22 and the negative charging clip 23 of the reverse-chargeable starting power supply device are respectively connected to the positive and negative terminals of the car battery. The reverse-chargeable starting power supply device first charges the car battery via the transistor Qa. When the power detection module 12 detects the power of the rechargeable battery 11 to generate a power signal, it sends the power signal to the main control module 10. The main control module 10 is used to obtain the power signal to determine the power of the rechargeable battery 11, and when the power of the rechargeable battery 11 is lower than a preset power, it obtains electrical energy from the car battery and reverse-charges the rechargeable battery 11 via the transistor Qa.

[0120] It is understood that during the process of the reversible starting power supply charging the car battery via the transistor Qa and the reversible starting power supply obtaining power from the car battery to reverse charge the rechargeable battery 11 via the transistor Qa, the first control signal KS2 is at a low voltage, the first switch Q7 is off, the second switch Q6 is on, and the positive voltage of the rechargeable battery 11 controls the transistor Qa to turn on.

[0121] Furthermore, the main control module 10 can also acquire the voltage and / or current signal (i.e., the KS4 valid signal) of the negative terminal of the car battery (i.e., the negative terminal of the rechargeable battery 11). Based on the KS4 valid signal of the negative terminal of the car battery, when the rechargeable battery 11 is reverse-charged (e.g., charged to a preset value), the main control module 10 controls the transistor Qa to turn off, thereby cutting off the electrical connection between the car battery and the negative charging clip 23. Specifically, the main control module 10 can output a high-level voltage signal to control the first switch Q7 to turn on, causing the control terminal of the second switch Q6 to be grounded and stop conducting. The transistor Qa cannot further obtain the voltage of the positive terminal BAT+ of the rechargeable battery 11 and turns off, thus disconnecting the electrical connection between the car battery and the negative charging clip 23.

[0122] It is understood that through the design of the transistor Qa and the first control unit 13a, the electrical connection between the car battery and the negative charging clip 23 can be turned on or off, ensuring circuit safety during and after charging. In addition, the design of the circuit structure is not only low in cost but also has high switching efficiency and high stability.

[0123] Example 3

[0124] Please refer to Figures 1, 10 and 14. The main difference between the reverse-chargeable starting power supply device provided in Embodiment 3 of this application and Embodiment 1 is that the structure of the control module 13 is different.

[0125] In Embodiment 3, the control module 13 is used to connect between the positive terminal of the rechargeable battery 11 and the positive terminal of the car battery. Specifically, the two ends of the control module 13 can be connected to the positive terminal BAT+ of the rechargeable battery 11 and the positive charging clip 22, respectively. The control module 13 is also electrically connected to the main control module 10 and is used to selectively connect or disconnect the electrical connection between the positive terminal BAT+ of the rechargeable battery 11 and the positive charging clip 22 under the control of the main control module 10.

[0126] The control module 13 includes a transistor Qb and a second control unit 13b connected between the control terminal of the transistor Qb and the main control module 10. The two conducting terminals of the transistor Qb are respectively connected to the positive terminal BAT+ of the rechargeable battery 11 and the positive charging clip 22. The second control unit 13b is used to control the transistor Qb to be turned on or off by using the valid KS3 signal output by the main control module 10 as a second control signal, thereby controlling whether the positive terminal BAT+ of the rechargeable battery 11 is electrically connected to the positive charging clip 22.

[0127] Specifically, the second control unit 13b includes a third switch Q8 and a boost inductor L. The control terminal of the third switch Q8 is electrically connected to the main control module 10 to receive a second control signal. The two conducting terminals of the third switch Q8 are grounded and electrically connected to the control terminal of the transistor Qb, respectively. The boost inductor L is electrically connected between the control terminal of the transistor Qb and the positive terminal BAT+ of the rechargeable battery 11.

[0128] The control terminal of the transistor Qb is also electrically connected to the main control module 10, so that the main control module 10 can detect the voltage and / or current of the control terminal of the transistor Qb (that is, the voltage and / or current of the positive terminal BAT+ of the rechargeable battery 11 after being boosted by the boost inductor L), and thus control the output KS3 valid signal according to the voltage and / or current of the positive terminal BAT+ of the rechargeable battery 11, thereby controlling the transistor Qb to be turned on or off.

[0129] Specifically, the control terminal of the transistor Qb can be grounded via the voltage divider circuit 13c, and the voltage divider node of the voltage divider circuit 13c is connected to the main control module 10.

[0130] The transistor Qbb is a metal-oxide-semiconductor field-effect transistor, which has good switching performance and can effectively connect or disconnect the car battery and the positive charging clip 22. In this embodiment, the transistor Qb is an N-MOSFET, and the third switching transistor Q8 is an NPN transistor.

[0131] The second control unit 13b further includes a second unidirectional diode D1b, which is connected between the boost inductor L and the control terminal of the transistor Qb.

[0132] When the reverse-chargeable starting power supply device is working, the positive charging clip 22 and the negative charging clip 23 of the reverse-chargeable starting power supply device are respectively connected to the positive and negative terminals of the car battery. The reverse-chargeable starting power supply device first charges the car battery via the transistor Qb. When the power detection module 12 detects the power of the rechargeable battery 11 to generate a power signal, it sends the power signal to the main control module 10. The main control module 10 is used to obtain the power signal to determine the power of the rechargeable battery 11, and when the power of the rechargeable battery 11 is lower than a preset power, it obtains electrical energy from the car battery and reverse-charges the rechargeable battery 11 via the transistor Qb.

[0133] It is understood that during the process of the reversible starting power supply charging the car battery via the transistor Qb and the reversible starting power supply obtaining power from the car battery to reverse charge the rechargeable battery 11 via the transistor Qb, the valid signal of KS3 is low voltage, the third switch Q8 is off, and the positive voltage BAT+ of the rechargeable battery 11 is boosted by the boost inductor L and the third switch Q8, thereby controlling the transistor Qb to turn on.

[0134] Furthermore, the main control module 10 can also acquire the voltage and / or current of the positive terminal of the car battery (i.e., the positive terminal of the rechargeable battery 11), and based on the voltage and / or current signal KS1, control the transistor Qb to turn off when the rechargeable battery 11 is reverse-charged (e.g., charged to a preset value), thereby cutting off the electrical connection between the car battery and the positive charging clip 22. Specifically, the main control module 10 can output a high-level valid signal KS3 to control the third switch Q8 to turn on, causing the control terminal of the transistor Qb to be grounded and stop conducting. The transistor Qb cannot further acquire the voltage of the positive terminal BAT+ of the rechargeable battery 11 and turns off, thereby disconnecting the electrical connection between the car battery and the positive charging clip 22.

[0135] It is understood that through the design of the transistor Qb and the second control unit 13b, the electrical connection between the car battery and the positive charging clip 22 can be turned on or off, ensuring circuit safety during and after charging. In addition, the design of the circuit structure is not only low in cost but also has high switching efficiency and high stability.

[0136] Example 4

[0137] Please refer to Figures 1, 10, 13, 14 and 15. The main difference between the reverse-chargeable starting power supply device provided in Embodiment 4 of this application and Embodiment 1 is that the structure of the control module 13 is different.

[0138] Specifically, the control module 13 includes a transistor Qa, a first control unit 13a connected between the control terminal of the transistor Qa and the main control module 10, a transistor Qb, and a second control unit 13b connected between the control terminal of the transistor Qb and the main control module 10.

[0139] The structure and working principle of the transistor Qa and the first control unit 13a described above are the same as those of the transistor Qa and the first control unit 13a in Embodiment 2, and will not be described again here.

[0140] The structure and working principle of the transistor Qb and the second control unit 13b described above are the same as those of the transistor Qb and the first control unit 13b in Embodiment 3, and will not be described again here.

[0141] Furthermore, the aforementioned transistors Qa and Qb can be turned on or off simultaneously, and the first control unit 13a and the second control unit 13b can also operate simultaneously.

[0142] It is understood that in Embodiment 4, by designing transistor Qa, first control unit 13a, transistor Qb and second control unit 13b, the positive and negative terminals of the rechargeable battery 11 and the positive and negative terminals of the car battery can be respectively controlled to be turned on or off, which can further ensure the stability of the overall circuit operation.

[0143] Example 5

[0144] As shown in Figures 16 to 20, this embodiment provides a parking starter device, including a housing 30 and a cover 40 covering the housing 30 to form a protective shell for housing and protecting the internal electronic components and battery pack from external mechanical impact, dust or moisture, ensuring the physical safety and reliability of the device under complex vehicle operating conditions, and improving overall durability.

[0145] The housing 30 houses a main control module 50 and a battery holder 31. The battery holder 31 contains a rechargeable battery 3111, a temperature detection module 3112, and a heating module 3113. The temperature detection module 3112 monitors the ambient temperature signal of the rechargeable battery 3111. The heating module 3113 heats the space containing the rechargeable battery 3111 in low-temperature environments. The main control module 50 includes a control module 51 (such as an MCU control module) and a power detection module 52. The power detection module 52 is electrically connected to the rechargeable battery 3111 and monitors its voltage signal. The control module 51 is electrically connected to the power detection module 52, the temperature detection module 3112, the heating module 3113, the rechargeable battery 3111, and an external power supply device 60.

[0146] The temperature control heating mechanism of this device works as follows: when the ambient temperature signal of the rechargeable battery 3111 is detected to be lower than a preset threshold (e.g., -40℃ to 10℃), the control module 51 controls the heating module 3113 to be powered on to preheat the rechargeable battery 3111, raising the temperature to a suitable discharge range (e.g., heating to 20℃ and maintaining a constant temperature), activating or enhancing battery activity, reducing internal resistance, and ensuring the battery pack's instantaneous high-current discharge capability at low temperatures. This effectively solves the technical pain point of traditional rechargeable batteries (such as lithium batteries) where the discharge capacity drops sharply at low temperatures and cannot provide sufficient starting current, ensuring that the vehicle can still start reliably in extremely cold weather.

[0147] The temperature compensation and power preservation mechanism of this device is as follows: the control module 51 obtains the current power and temperature signals through the power detection module 52 and the temperature detection module 3112, and adjusts the required minimum reserved power value according to the temperature information and the preset temperature-minimum reserved power relationship table; if the current power is lower than the minimum reserved power value, the external power supply device 60 (i.e., the vehicle battery) is controlled to supply power to the rechargeable battery 3111 in reverse so that the starting voltage and reserved power of the rechargeable battery 3111 meet the starting requirements of the car; thereby ensuring that there is enough power for the next start at different temperatures, and avoiding irreversible damage to the battery caused by over-discharge, significantly extending the service life of the battery pack.

[0148] In some embodiments, as shown in FIG18, the power detection module 52 includes a detection switch Qa, a voltage divider module (first resistor Ra), a second resistor Rb, a third resistor Rc, and a first capacitor Ca; the detection switch Qa is preferably an NMOS transistor. The positive terminal of the rechargeable battery 11 is voltage-divided by the first resistor Ra, and one end of the detection transistor Qa (i.e., terminal 2 of the detection transistor Qa) serves as the voltage divider point. The voltage at the voltage divider point is filtered by the first capacitor Ca and then connected to the detection pin of the control module. As the voltage of the rechargeable battery changes, the voltage at the voltage divider point also changes, thus realizing the power detection of the rechargeable battery. By setting the first capacitor Ca to filter the voltage at the voltage divider point, noise is reduced, ensuring high accuracy of the detected rechargeable battery power. The detection pin of the control module is electrically connected.

[0149] In some embodiments, the temperature detection module 3112 is preferably a high-precision NTC thermistor to improve the temperature detection accuracy, but this is not a limitation and other high-precision temperature sensors may also be selected.

[0150] In some embodiments, the rechargeable battery 3111 is preferably an 8-cell lithium iron phosphate battery pack, but is not limited thereto, and other numbers of lithium iron phosphate battery packs or other types of rechargeable battery packs may also be selected.

[0151] In some embodiments, as shown in Figures 23 to 25, the control module 13 includes a magnetic latching relay K1, a forward control circuit connected to the main control module 10 and the magnetic latching relay K1, and a reverse control circuit connected to the main control module and the magnetic latching relay K1. The forward control circuit receives a forward control signal from the main control module 10 and controls the magnetic latching relay K1 to close based on the forward control signal. The reverse control circuit receives a reverse control signal from the main control module 10 and controls the magnetic latching relay K1 to open based on the reverse control signal. In this embodiment, by setting a forward control circuit to control the magnetic latching relay to close and a reverse control circuit to control the magnetic latching relay to open, the problem of the rechargeable battery output not being completely disconnected is solved. The magnetic latching relay K1 does not require continuous power supply to maintain its working state, which can significantly reduce energy waste. Furthermore, since the contact state of the magnetic latching relay K1 is maintained by the magnetic force generated by a permanent magnet, it can maintain its current state even after power failure, without requiring continuous power supply, which can effectively improve stability. In one embodiment, the magnetic latching relay K1 is a bidirectional magnetic latching relay.

[0152] The forward control circuit includes a forward transistor Q1, a first forward MOSFET Q5 (G2S2D2), and a second forward MOSFET Q4 (G1S1D1). The forward transistor Q1 performs two-stage control, enabling the main control module 10 to control the first forward MOSFET Q5 (G2S2D2) and the second forward MOSFET Q4 (G1S1D1) to conduct. The main control module 10 outputs valid signals KS1 and KS2 as forward control signals to control the magnetic latching relay K1 to close.

[0153] It should be noted that the specific embodiments corresponding to Figures 23 to 25 can be referred to the specific embodiments corresponding to Figures 2 to 4, and will not be described again here.

[0154] Meanwhile, the working circuit diagram of the parking starter power device is the same as that of the starter power device provided in any embodiment of this application, and will not be described again here.

[0155] In some embodiments, as shown in Figures 17, 19, and 20, the rechargeable battery 3111 is installed in the inner cavity of the battery holder 31 and fixed in a tight fit to reduce the impact of vibration on the battery pack. The heating module 3113 is disposed above the rechargeable battery 3111, with its heating end facing the rechargeable battery 3111, directly opposite the surface of the rechargeable battery 3111, thereby improving the heat transfer effect on the rechargeable battery 3111, thus accelerating the improvement of battery activity and enhancing the instantaneous high-current discharge capability of the battery pack; the temperature detection module 3112 is disposed on the inner or outer wall of the battery holder 31, preferably close to the battery pack, to improve the accuracy of temperature sampling.

[0156] In some embodiments, a mounting plate 32 is installed on the top of the battery holder 31, and the mounting plate 32 is located above the heating module 3113. An aerosol fire extinguishing module 70 is mounted on the mounting plate 32. The aerosol fire extinguishing module 70 is filled with a solid fire extinguishing agent. When the internal temperature of the device rises sharply to the activation threshold due to abnormal reasons such as a battery short circuit or heating plate malfunction, the aerosol fire extinguishing module 70 is automatically triggered, igniting the solid fire extinguishing agent inside and releasing nano-sized aerosol particles. These particles can rapidly capture free radicals in the combustion chain reaction, cutting off the combustion chain, and, accompanied by an endothermic cooling effect, achieve total flooding fire extinguishing within the sealed housing 30, preventing the fire from spreading and thus ensuring the safety of the device and the equipment / vehicle carrying it.

[0157] In some embodiments, the aerosol fire extinguishing module 70 can also be connected to the main control module 50 and electrically connected to the control module 51. When the system detects a serious anomaly (such as a voltage surge or sensor alarm), the control module 51 can send a current signal to actively activate the fire extinguishing device, achieving a millisecond-level response, thereby ensuring the safety of the device and the equipment / vehicles carrying the device.

[0158] In some embodiments, as shown in Figures 19 to 22, a GPS box 80 is provided on one side wall of the housing 30. The GPS box 80 includes a bottom shell 81 and a shell plate 82 covering the bottom shell 81. A first waterproof sealing ring 83 is provided between the bottom shell 81 and the shell plate 82 to provide waterproof and dustproof protection for the electrical components inside the bottom shell 81. One end of the shell plate 82 is exposed outside the housing 30, and a label plate 821 is provided on one end of the shell plate 82. The bottom shell 81 has a first receiving cavity 84 corresponding to the label plate 821. A GPS module 841 and a Bluetooth module 842, which are electrically connected to the main control module 50, are respectively located in the first receiving cavity 84. The GPS module 841 is located above the Bluetooth module 842. A through-hole 843 is provided at the top of the first receiving cavity 84. One end of the GPS module 841 and the Bluetooth module 842 are electrically connected to a ribbon cable 844, and the other end of the ribbon cable 844 passes through the through-hole 843 and is electrically connected to the main control module 50. The label 821 uses non-metallic materials or a window design to ensure that the antennas of the GPS module 841 and Bluetooth module 842 can directly receive external signals, avoiding electromagnetic interference from the metal parts and circuit boards inside the housing 30. The GPS module 841 and Bluetooth module 842 are connected to the main control module 50 inside the housing 30 via a ribbon cable 844. The ribbon cable 844 passes through the port 843 on the bottom shell 81 to realize data interaction (such as uploading vehicle location information, configuring Bluetooth connection for mobile APP, and data transmission). This facilitates anti-theft tracking of the device and vehicle, and allows users to check the battery pack's power status and remotely control the device's battery pack preheating function at any time.

[0159] In some embodiments, the label plate 821 is preferably a PVC label plate, but this is not a limitation. In this embodiment, the PVC label plate is placed on the top layer to facilitate GPS or Bluetooth signal transmission; at the same time, the PVC label plate acts as a "protective cover" for the antenna, protecting the fragile ceramic antenna from scratches without affecting signal transmission and reception, thereby improving signal transmission accuracy.

[0160] In some embodiments, as shown in Figures 19 to 22, the bottom shell 81 further includes a second receiving cavity 85. The second receiving cavity 85 contains a conductive post 851 and a fuse 852. The bottom wall of the second receiving cavity 85 has two mounting openings 853 spaced apart, each containing a conductive post 851. The two ends of the fuse 852 are electrically connected to one end of the corresponding conductive post 851, and the other end of the conductive post 851 is electrically connected to the power supply terminal of the main control module 50, serving as an overcurrent protection element for the main power supply circuit. By connecting the fuse 852 in series in the main power supply circuit, when a short circuit or overcurrent occurs, the fuse 852 melts, cutting off the power output, thereby protecting the device and external electrical components connected to it. This embodiment enhances electrical safety by providing overcurrent protection to prevent damage to the device or vehicle electrical system due to abnormal external loads or internal short circuits.

[0161] In some embodiments, to facilitate convenient maintenance of the fuse, as shown in Figures 21 and 22, a first mounting area 822 and a second mounting area 823 are provided at intervals on one end of the housing plate 82. The first mounting area 822 is provided with the indicator plate 821. The second mounting area 823 is provided with a disassembly and installation port 824 communicating with the second receiving cavity 85 for disassembly and replacement of the fuse 852. The periphery of the disassembly and installation port 824 is provided with a second waterproof sealing ring 825 to provide waterproof and dustproof protection for the fuse 852 and its circuit. The second mounting area 823 is also provided with a cover plate 826 covering the disassembly and installation port 824. The cover plate 826 can be detachably installed on the second mounting area 823, such as by screws or snap-fit ​​installation, to achieve quick disassembly and installation of the cover plate 826, thereby facilitating the replacement of the blown fuse 852. When fuse 852 blows, the user can simply open the cover plate 826 to replace fuse 852 directly from the outside without disassembling the main housing of the entire parking power unit, which greatly improves maintenance efficiency and the waterproof reliability of the product.

[0162] The first waterproof sealing ring 83 and the second waterproof sealing ring 825 are preferably made of waterproof silicone, but this is not a limitation. Other sealing materials with good sealing performance, such as rubber rings, can also be selected.

[0163] In some embodiments, as shown in Figures 16, 19, and 20, a first terminal 41 and a second terminal 42 are provided at intervals on the upper surface of the cover 40 near the main control module 50. One end of the first terminal 41 and the second terminal 42 are electrically connected to the positive and negative power terminals of an external power supply device 60 (such as a vehicle battery or other external power source) via a line, and the other end is electrically connected to the corresponding power terminal of the main control module 50 via a wire, so as to provide a charging or emergency power supply path for the main control module 50 and the battery pack.

[0164] A forced start button switch 43 and a waterproof vent valve 44 are also provided between the first terminal 41 and the second terminal 42. The forced start button switch 43 is used to manually force start the device in special circumstances (such as control module failure or low power), i.e., emergency start means, to output starting current to realize the car starting function; and the waterproof vent valve 44 is provided on the cover 40, which can balance the air pressure inside and outside the box 30, prevent the shell from bursting due to altitude changes or temperature rise, and prevent external moisture and dust from entering, thus enhancing the practicality and safety of the device.

[0165] Example 6

[0166] As shown in Figures 26 to 28, this application provides an automotive power supply device 1000, including a starting power supply device 100 and / or a parking starting power supply device 200 provided in any embodiment of this application.

[0167] The specific implementation methods of the starting power supply device 100 and the parking starting power supply device 200 can be referred to the descriptions in the above embodiments, and will not be repeated here.

[0168] In some embodiments, to address the problem of difficult low-temperature starting of automotive power supply equipment 1000, a dynamic low-power protection mechanism combining temperature and voltage is proposed: by dividing the power protection level into multiple levels according to temperature range, the lower the temperature, the more starting power is reserved, and the corresponding power protection voltage threshold is higher; combined with the characteristics of battery discharge curve, a dedicated voltage threshold is set for each temperature range to ensure that 10% to 50% of the remaining power can be retained in the entire temperature range of -38℃ to above 10℃, ensuring reliable vehicle starting; together with high and low temperature protection for charging / discharging and overvoltage / undervoltage protection, a complete battery safety protection system is formed.

[0169] The temperature detection unit (which can be the temperature detection module 14 corresponding to the starter power supply device 100 or the temperature detection module 3112 corresponding to the parking starter power supply device 200) uses an NTC-10K thermistor (RNTC) as a temperature sensor and is installed in close contact with the surface of the rechargeable battery (which can be the rechargeable battery 11 corresponding to the starter power supply device 100 or the rechargeable battery 3111 corresponding to the parking starter power supply device 200). The NTC voltage divider signal is directly sent to the ADC sampling port of the main control module (which can be the main control module 10 or the main control module 50) to realize real-time temperature acquisition with a resolution of ±0.5℃. The temperature detection range covers -40℃ to 85℃, meeting the detection requirements in extreme low temperature environments.

[0170] The terminal voltage of each battery cell is collected by the battery protection chip U1 with an accuracy of ±5mV; the total voltage of the battery pack is collected by the voltage divider resistor network of the power detection branch and sent to the main control module U3; by combining the individual cell voltage and total voltage data, the remaining battery power (SOC) is accurately determined.

[0171] The main control module receives temperature signals, voltage signals, button signals, and APP commands; it can control the heating module, power level switch, and status display module to achieve functions such as power protection, heating wake-up, and one-button forced start.

[0172] For example, the temperature range of -38℃ to above 10℃ can be divided into 6 temperature zones, each corresponding to a unique power-saving voltage threshold, specifically including:

[0173] Among them, the battery retains a higher voltage threshold as the temperature decreases, ensuring that the battery retains more usable starting power when the temperature is lower and starting is more difficult.

[0174] For example, high and low temperature charge and discharge protection includes:

[0175] Charging temperature protection: High temperature protection value: 70℃ → If it exceeds this value, charging will be cut off and will resume when the temperature drops to 45℃; Low temperature protection value: 0℃ → If it falls below this value, charging will be prohibited and will resume when the temperature rises to 5℃.

[0176] Discharge temperature protection: High discharge temperature protection value: 70℃ → If exceeded, the output will be cut off and will recover when the temperature drops to 45℃; Low discharge temperature protection value: -38℃ → If below, discharge will be prohibited and will recover when the temperature rises to -20℃.

[0177] The voltage protection and dynamic low battery protection logic can include: High voltage protection: triggered when the individual cell voltage is ≥3.65V, the charging is cut off after a delay of 250ms, and the protection is released after the charger is removed; Low voltage protection: triggered when the individual cell voltage is ≤3.075V, the output is turned off after a delay of 30s, and the power protection voltage threshold is dynamically adjusted with temperature (i.e., the voltage in the table above).

[0178] The main controller U3 collects the NTC temperature in real time and matches the power preservation voltage threshold for the corresponding temperature range. When the total battery voltage drops to the power preservation voltage threshold (e.g., 3.65V), it enters low-voltage protection in advance, shuts off external output, and retains the remaining power. If an emergency start is required, a one-click forced start can be triggered via the function key or APP to temporarily release the protection for 100 seconds. The vehicle must be started during this period; otherwise, the protection will re-enter.

[0179] With the built-in equalization circuit of the rechargeable battery pack, the battery protection chip U1 controls the equalization current of each individual battery during the charging / resting phase, keeping the voltage difference between individual cells within ±20mV. This ensures that the charge of each individual cell is evenly distributed during low-temperature power preservation, preventing premature depletion of a certain cell that would lead to a decrease in overall starting capability. The dynamic voltage threshold judgment is more accurate, avoiding false triggering of protection due to inconsistency between individual cells.

[0180] For example, taking a -25℃ environment as an example: if the NTC detects an ambient temperature of -25℃, it matches the -30 to -20℃ range, corresponding to a power reserve voltage threshold of 25.2V; when the battery discharges to a total voltage of 25.2V, the main controller U3 triggers low power protection, shuts down the output, and retains approximately 40% of the power; if the corresponding button for one-button forced start is pressed, the protection is temporarily released for 100 seconds, during which time the vehicle can be started; if the vehicle starts successfully within 100 seconds, the vehicle's alternator charges the battery, and the protection is automatically released after the voltage recovers; if the vehicle does not start successfully within 100 seconds, the system re-enters low power protection to prevent the battery from being completely depleted.

[0181] The above description provides one or more embodiments in conjunction with specific content, and does not imply that the specific implementation of the present invention is limited to these descriptions. Any methods or structures that are similar to or identical to those of the present invention, or any technical deductions or substitutions made based on the concept of the present invention, should be considered within the scope of protection of the present invention.

[0182] The above description provides one or more embodiments in conjunction with specific content, and does not imply that the specific implementation of the present invention is limited to these descriptions. Any methods or structures that are similar to or identical to those of the present invention, or any technical deductions or substitutions made based on the concept of the present invention, should be considered within the scope of protection of the present invention.

Claims

1. A starting power supply device, wherein, It includes a main control module, a rechargeable battery connected to the main control module, and a power detection module connected to the main control module and the rechargeable battery; The power detection module is used to detect the power of the rechargeable battery to generate a power signal, and send the power signal to the main control module; The main control module is used to acquire the power signal to determine the power of the rechargeable battery, and when the power of the rechargeable battery is lower than the preset power, it obtains power from the car battery to reverse charge the rechargeable battery. The rechargeable battery is electrically connected to the car battery through the control module.

2. The starting power supply device according to claim 1, wherein, The control module includes a bidirectional magnetic latching relay, a forward control circuit connected to the main control module and the magnetic latching relay, and a reverse control circuit connected to the main control module and the magnetic latching relay. The forward control circuit is used to receive the forward control signal from the main control module, and based on the forward control signal, control the magnetic latching relay to close. The reverse control circuit is used to receive the reverse control signal from the main control module, and based on the reverse control signal, control the magnetic latching relay to disconnect.

3. The start-up power supply apparatus according to claim 1, wherein The control module includes a first transistor and a first control unit connected between the control terminal of the first transistor and the main control module. The two conducting terminals of the first transistor are respectively electrically connected between the negative terminal of the rechargeable battery and the negative charging clip of the starting power supply device.

4. The start-up power supply apparatus according to claim 3, wherein The first transistor is a field-effect transistor. The first control unit includes a first switch and a second switch. The control terminal of the first switch is electrically connected to the main control module to receive a first control signal. The two conducting terminals of the first switch are respectively grounded and electrically connected to the control terminal of the second switch. The two conducting terminals of the second switch are respectively electrically connected to the control terminal of the first transistor and the positive terminal of the rechargeable battery.

5. The start-up power supply apparatus according to claim 1, wherein The control module includes a second transistor and a second control unit connected between the control terminal of the second transistor and the main control module. The second transistor is a field-effect transistor, and the two conducting terminals of the second transistor are respectively connected to the positive terminal of the rechargeable battery and the positive charging clip of the power supply device. The first control unit is used to control the second transistor to conduct or turn off under the control of the second control signal output by the main control module, thereby controlling whether the positive terminal of the rechargeable battery is electrically connected to the positive charging clip.

6. The start-up power supply apparatus according to claim 5, wherein Specifically, the second control unit includes a third switching transistor and a boost inductor. The control terminal of the third switching transistor is electrically connected to the main control module to receive the second control signal. The two conducting terminals of the third switching transistor are respectively grounded and electrically connected to the control terminal of the second transistor. The boost inductor is electrically connected between the control terminal of the second transistor and the positive terminal of the rechargeable battery.

7. The start-up power supply apparatus according to claim 1, wherein After the car is started, the power detection module monitors the power of the rechargeable battery in real time. The control module remains connected. When the power of the rechargeable battery is lower than the preset power, the main control module starts the car battery to reverse charge the rechargeable battery.

8. The start-up power supply apparatus according to claim 1, wherein The power detection module includes a detection transistor, a first resistor, and a second resistor; the main control module is used to output a control signal to control the detection transistor to conduct; after the detection transistor is conducted, the positive terminal of the rechargeable battery is divided by the first resistor and the second resistor, and the voltage at one end of the detection transistor is connected to the detection port of the main control module.

9. The start-up power supply apparatus according to claim 1, wherein It also includes a power display module connected to the main control module, the power display module being used to display the power of the rechargeable battery; it also includes a charging module for charging the rechargeable battery, and a battery protection module is connected between the charging module and the rechargeable battery.

10. A park start power supply device wherein, It includes a box body and a cover on the box body. The box body is equipped with a main control module and a battery holder. The battery holder is equipped with a rechargeable battery, a temperature detection module and a heating module. The temperature detection module is used to monitor the ambient temperature signal of the rechargeable battery. The heating module is used to heat the space where the rechargeable battery is located in a low-temperature environment. The main control module includes a control module and a power detection module. The power detection module is electrically connected to the rechargeable battery and is used to monitor the voltage signal of the rechargeable battery. The control module is electrically connected to the power detection module, temperature detection module, heating module, rechargeable battery, and external power supply device, respectively. It is used to control the working state of the heating module according to the ambient temperature signal, and also to control the external power supply device to supply reverse power to the rechargeable battery according to the ambient temperature signal and voltage signal.

11. The stationary start power supply device of claim 10, wherein, The rechargeable battery is installed in the inner cavity of the battery holder, the heating module is located above the rechargeable battery, and the heating end of the heating module faces the rechargeable battery; the temperature detection module is located on the inner or outer wall of the battery holder.

12. The stationary start power supply device of claim 11, wherein, An mounting plate is installed on the top of the battery holder, which is located above the heating module. An aerosol fire extinguishing module is provided on the mounting plate.

13. The parking start power supply apparatus according to claim 10, wherein The power detection module includes a detection switch and a voltage divider module. The positive output terminal of the rechargeable battery is electrically connected to the detection pin terminal of the control module via the detection switch and the voltage divider module.

14. The parking start power supply apparatus according to claim 10, wherein A GPS box is provided on one side wall of the box body. The GPS box includes a bottom shell and a shell plate covering the bottom shell. A first waterproof sealing ring is provided between the bottom shell and the shell plate. One end of the shell plate is exposed outside the box body, and a label plate is provided on one end of the shell plate. The bottom shell is provided with a first receiving cavity, and a GPS module electrically connected to the main control module is provided in the first receiving cavity.

15. The stationary start power supply device of claim 14, wherein, The first receiving cavity is also equipped with a Bluetooth module that is electrically connected to the main control module, and the upper part of the first receiving cavity is provided with a passage. The GPS module and the Bluetooth module are electrically connected to one end of the ribbon cable, and the other end of the ribbon cable passes through the port and is electrically connected to the main control module.

16. The stationary start power supply device of claim 15, wherein, The bottom shell is also provided with a second receiving cavity, in which a conductive post and a fuse are provided. The bottom wall of the second receiving cavity is provided with two mounting holes spaced apart, and the conductive post is embedded in each mounting hole. The two ends of the fuse are electrically connected to one end of the corresponding conductive post, and the other end of the conductive post is electrically connected to the main control module.

17. The parking start power supply apparatus according to claim 16, wherein The shell plate has a first mounting area and a second mounting area spaced apart at one end, and the first mounting area is provided with the label plate. The second installation area is provided with a disassembly and installation port communicating with the second receiving cavity for disassembly and replacement of the fuse, and the disassembly and installation port is provided with a second waterproof sealing ring around its perimeter; The second installation area is also provided with a cover plate covering the disassembly and installation port, the cover plate being detachably installed in the second installation area.

18. The parking start power supply apparatus according to claim 10, wherein The temperature detection module is an NTC thermistor.

19. The stationary start power supply apparatus according to any one of claims 10 to 18, wherein, The upper surface of the cover near the main control module is provided with a first terminal and a second terminal at intervals. One end of the first terminal and the second terminal are both electrically connected to the external power supply device, and the other end is electrically connected to the main control module via a wire. A forced start button switch and a waterproof and breathable valve are also provided between the first terminal and the second terminal. The forced start button switch is electrically connected to the main control module via a wire.

20. An automotive power supply apparatus, wherein, It includes the reverse-chargeable starting power supply device according to any one of claims 1-9, and / or includes the parking starting power supply device according to any one of claims 10-19.

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