Starting circuit and emergency starting power supply

Abstract

The utility model discloses a starting circuit and an emergency starting power supply. The starting circuit is connected with the energy storage module and the vehicle circuit and used for transmitting the working power supply of the energy storage module to start the vehicle. The starting circuit comprises a detection module and a switch module. The detection module is used for detecting whether a vehicle circuit meets a preset starting condition or not and generating a corresponding detection signal. The switch module is connected with the energy storage module and the vehicle circuit and used for controlling the on-off state of the energy storage module and the vehicle circuit based on the detection signal. According to the starting circuit and the emergency starting power supply, whether the vehicle circuit meets the preset starting condition or not is detected through the detection module, the corresponding detection signal is generated, and the switch module controls the on-off state of the energy storage module and the vehicle circuit based on the detection signal so as to control the energy storage module to supply power to the vehicle circuit; therefore, the situation that the energy storage module rapidly finishes discharging and does not have enough energy to finish the work of starting the automobile is avoided.

Description

Technical Field

[0001] This application relates to the field of starting power supply technology, and in particular to a starting circuit and an emergency starting power supply. Background Technology

[0002] In automotive starting power systems, the starting circuit plays a crucial role, responsible for providing the necessary electrical energy to the vehicle's electrical system during startup. However, current starting circuits cannot effectively control the power supply from the energy storage module to the vehicle's electrical system, which may result in the energy storage module discharging rapidly without sufficient energy to start the car. Utility Model Content

[0003] This application provides a startup circuit and an emergency startup power supply to solve at least one of the aforementioned technical problems.

[0004] The starting circuit of this application embodiment is connected to the energy storage module and the vehicle circuit respectively, and is used to transmit the working power of the energy storage module to start the vehicle.

[0005] The startup circuit includes:

[0006] The detection module is used to detect whether the vehicle circuit meets the preset start-up conditions and generate a corresponding detection signal.

[0007] A switching module is connected to both the energy storage module and the vehicle circuit, and is used to control the on / off state of the energy storage module and the vehicle circuit based on the detection signal.

[0008] In some embodiments, the vehicle circuit includes a starter motor, and the detection module includes a starter detection unit, which is used to detect the starter motor's start-up state and generate a corresponding detection signal based on the start-up state.

[0009] In some embodiments, the start-up detection unit includes an internal resistance detection circuit, which is used to detect the line impedance of the vehicle circuit and generate a corresponding detection signal based on the line impedance.

[0010] In some embodiments, the internal resistance detection circuit is used to detect the impedance value of the line impedance, and when the impedance value drops to a first preset threshold, it generates a corresponding detection signal.

[0011] In some embodiments, the internal resistance detection circuit is used to detect the impedance change value of the line impedance, and when the impedance change value reaches a second preset threshold, it generates a corresponding detection signal.

[0012] In some embodiments, the startup circuit further includes a controller module, which is connected to both the detection module and the switch module, and is used to receive detection signals generated by the detection module and control the on / off state of the switch module based on the detection signals.

[0013] In some embodiments, the internal resistance detection circuit includes a constant current source and a signal generator. The constant current source is used to generate a current signal with a predetermined current value, and the signal generator is used to generate a pulse wave signal with a predetermined frequency value to modulate the current signal. The constant current source is also used to output a voltage signal, and the voltage signal and the current signal are used to determine the line impedance.

[0014] In some embodiments, the frequency range of the predetermined frequency value is 0.01 to 1 MHz.

[0015] In some embodiments, the predetermined current value is in the range of 50 to 200 mA.

[0016] The emergency start-up power supply according to the embodiments of this application includes:

[0017] The housing, which includes at least a shell;

[0018] An energy storage module is disposed within the housing;

[0019] The connection port is electrically connected to the energy storage module;

[0020] An output path is detachably connected to the connection port and is used to electrically connect the connection port and the vehicle circuitry.

[0021] And a starting circuit of any of the above embodiments, wherein the starting circuit is disposed on the output path and is used to transmit the working power of the energy storage module to start the vehicle.

[0022] In some embodiments, the energy storage module includes a rechargeable battery or a supercapacitor, wherein the rechargeable battery includes at least one of a sodium battery, a lithium battery, and a lead-acid battery.

[0023] In the starting circuit and emergency starting power supply of this application embodiment, the detection module detects whether the vehicle circuit meets the preset starting conditions and generates a corresponding detection signal. The switching module controls the on / off state of the energy storage module and the vehicle circuit based on the detection signal, so as to control the power supply of the energy storage module to the vehicle circuit, thereby avoiding the situation where the energy storage module is quickly discharged and there is not enough energy to start the car.

[0024] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments or related technologies of this application, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort. Among them:

[0026] Figure 1 This is a schematic diagram of the startup circuit according to some embodiments of this application;

[0027] Figure 2 This is a schematic diagram illustrating the application scenario of the emergency start-up power supply according to certain embodiments of this application;

[0028] Figure 3 This is a schematic diagram of the internal resistance detection circuit in some embodiments of this application;

[0029] Figure 4 This is a schematic diagram of an emergency start-up power supply module according to certain embodiments of this application.

[0030] Explanation of reference numerals in the attached figures:

[0031] Start-up circuit 100, detection module 10, start-up detection unit 11, internal resistance detection circuit 111, constant current source 1111, signal generator 1112, switch module 20, controller module 30, emergency start-up power supply 1000, energy storage module 1001, smart clip 1002, connection port 1003, output path 1004, vehicle circuit 2000, car battery 2001. Detailed Implementation

[0032] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0033] Please see Figure 1 and Figure 4In this embodiment, the starting circuit 100 is connected to the energy storage module 1001 and the vehicle circuit 2000, respectively, and is used to transmit the operating power of the energy storage module 1001 to start the vehicle. The starting circuit 100 includes a detection module 10 and a switch module 20. The detection module 10 is used to detect whether the vehicle circuit 2000 meets the preset starting conditions and generate a corresponding detection signal. The switch module 20 is connected to the energy storage module 1001 and the vehicle circuit 2000, respectively, and is used to control the on / off state of the energy storage module 1001 and the vehicle circuit 2000 based on the detection signal.

[0034] In the starting circuit 100 of this application embodiment, the detection module 10 detects whether the vehicle circuit 2000 meets the preset starting conditions and generates a corresponding detection signal. The switching module 20 controls the on / off state of the energy storage module 1001 and the vehicle circuit 2000 based on the detection signal, so as to control the power supply of the energy storage module 1001 to the vehicle circuit 2000, thereby avoiding the situation where the energy storage module 1001 is quickly discharged and there is not enough energy to start the car.

[0035] Specifically, the energy storage module 1001 is used to supply power to the vehicle circuit 2000. The energy storage module 1001 may include, for example, a rechargeable battery or a supercapacitor. The vehicle circuit 2000 can be a power supply network connected to the entire vehicle, and may include a car battery 2001, as well as electrical equipment such as a starter motor and central control unit. The starting circuit 100 is connected to both the energy storage module 1001 and the vehicle circuit 2000, and is used to transfer the operating power from the energy storage module 1001 to the vehicle circuit 2000 to start the vehicle.

[0036] The detection module 10 is used to detect whether the vehicle circuit 2000 meets the preset start-up conditions and generate a corresponding detection signal. The preset start-up conditions may include, for example, the starter motor being triggered to start the vehicle.

[0037] The switching module 20 is connected to both the energy storage module 1001 and the vehicle circuit 2000, and is used to control the on / off state of the energy storage module 1001 and the vehicle circuit 2000 based on detection signals. In one example, when the vehicle circuit 2000 meets preset startup conditions, the detection module 10 generates a first detection signal, and the switching module 20 controls the energy storage module 1001 and the vehicle circuit 2000 to be connected based on the first detection signal; when the vehicle circuit 2000 does not meet the preset startup conditions, the detection module 10 generates a second detection signal, and the switching module 20 controls the energy storage module 1001 and the vehicle circuit 2000 to be disconnected based on the second detection signal. In this way, it can be ensured that the working power is transferred from the energy storage module 1001 to the vehicle circuit 2000 to start the vehicle only when the vehicle circuit 2000 meets the preset startup conditions, thus avoiding unnecessary discharge of the energy storage module 1001.

[0038] Please see Figure 1 and Figure 2 In some embodiments, the vehicle circuit 2000 includes a starter motor, and the detection module 10 includes a starter detection unit 11. The starter detection unit 11 is used to detect the starter motor's start-up state and generate a corresponding detection signal based on the start-up state.

[0039] Specifically, the starter motor, also known as a starter motor or starter motor, is a key component for starting a vehicle. The starter motor requires sufficient electrical power to drive the engine to the speed required for ignition.

[0040] The start detection unit 11 is used to detect the start status of the starter motor, that is, to detect whether the starter motor has been triggered. The starter motor can be triggered by the driver issuing a start request via a key or button. The start detection unit 11 also generates corresponding detection signals based on the starter motor's start status. For example, when the starter motor has not been triggered, the start detection unit 11 generates a first detection signal, and the switch module 20 controls the energy storage module 1001 and the vehicle circuit 2000 to connect based on the first detection signal; when the starter motor has been triggered, the start detection unit 11 generates a second detection signal, and the switch module 20 controls the energy storage module 1001 and the vehicle circuit 2000 to disconnect based on the second detection signal.

[0041] In related technologies, jump starters suffer from the following problems: As car batteries age, their performance may deteriorate significantly, or if stored for too long, they may become over-discharged, resulting in a very low terminal voltage (e.g., 6V). Jump starters, on the other hand, typically have a higher voltage (e.g., 14V). In this situation, when the smart clamps hold the battery and start the jump starter, the voltage difference can cause the jump starter to charge the battery instantaneously, generating a very large current, often exceeding 100A. If the car battery is of poor quality and cannot raise its terminal voltage quickly enough, the jump starter's internal battery will rapidly discharge, leaving insufficient energy to start the car. Furthermore, this high current can cause the jump starter to overheat and even become damaged.

[0042] In this embodiment, the starter detection unit 11 detects the starter motor's start-up status and generates a corresponding detection signal based on the start-up status. The switch module 20 controls the on / off state of the energy storage module 1001 and the vehicle circuit 2000 based on the detection signal. Thus, when the starter motor has been triggered, the switch module 20 controls the energy storage module 1001 and the vehicle circuit 2000 to connect based on the detection signal, allowing the working power to be transferred from the energy storage module 1001 to the vehicle circuit 2000, thereby allowing a large current release. Because the starter motor requires a large current after connection, the terminal voltage of the energy storage module 1001 drops rapidly, essentially matching the voltage of the car battery 2001, avoiding the diversion of the charging current of the car battery 2001 and ensuring that most of the energy is used to start the car.

[0043] As is understandable, the emergency jump starter 1000, the car battery 2001, and the starter motor are all connected together (the car battery 2001 is connected to the starter motor, and the emergency jump starter 1000 clamps the car battery 2001 via the smart clip 1002). When the emergency jump starter 1000 is turned on, it will output current. If the starter motor does not trigger the starter, the current from the emergency jump starter 1000 will flow to the car battery 2001. If the starter motor has triggered the starter, since the starter motor has a lower internal resistance than the car battery 2001, the current from the emergency jump starter 1000 will primarily flow to the starter motor.

[0044] Please see Figure 1 and Figure 2 In some embodiments, the activation detection unit 11 includes an internal resistance detection circuit 111. The internal resistance detection circuit 111 is used to detect the line impedance of the vehicle circuit 2000 and generate a corresponding detection signal based on the line impedance.

[0045] Specifically, the internal resistance detection circuit 111 is used to detect the line impedance of the vehicle circuit 2000. The internal resistance detection circuit 111 can be connected to the car battery 2001 via the smart clip 1002 to detect the line impedance of the vehicle circuit 2000, including the car battery 2001, starter motor, central locking system, etc. Because the starter motor has a relatively low internal resistance, compared to the case where the starter motor is not triggered, when the starter motor is triggered and connected to the circuit, the overall internal resistance of the vehicle circuit 2000 decreases, and the line impedance drops. Therefore, by detecting the line impedance of the vehicle circuit 2000 through the internal resistance detection circuit 111, the starting state of the starter motor can be accurately determined, and a corresponding detection signal can be generated. Based on this detection signal, the on / off state of the energy storage module 1001 and the vehicle circuit 2000 can be controlled.

[0046] In some implementations, the internal resistance detection circuit 111 is used to detect the impedance value of the line impedance, and when the impedance value drops to a first preset threshold, it generates a corresponding detection signal.

[0047] Specifically, the first preset threshold can be determined experimentally and through data analysis. The first preset threshold can be set as the impedance value that clearly distinguishes whether the smart clip 1002 is connected to the car battery 2001. If the smart clip 1002 is not connected to the car battery 2001, the impedance value of the line will be high, indicating no voltage. Therefore, when the impedance value of the line drops to the first preset threshold, it indicates that the smart clip 1002 is connected to the car battery 2001, and a corresponding detection signal is generated to control the energy storage module 1001 and the vehicle circuit 2000 to be connected based on the detection signal.

[0048] Of course, in other examples, it is also possible to determine whether the smart clip 1002 is connected to the car battery 2001 by measuring voltage, etc., and this is not a limitation here.

[0049] In some embodiments, the internal resistance detection circuit 111 is used to detect the impedance change value of the line impedance, and when the impedance change value reaches a second preset threshold, it generates a corresponding detection signal.

[0050] Specifically, the second preset threshold can be determined experimentally and through data analysis. The second preset threshold can be set as an impedance change value that clearly distinguishes whether the starter motor has triggered the starter. As mentioned earlier, because the starter motor has a relatively low internal resistance, compared to the case where the starter motor has not triggered the starter, when the starter motor has triggered the starter, it connects to the circuit, the overall internal resistance of the vehicle circuit 2000 decreases, and the line impedance drops. Therefore, when the impedance change value of the line impedance reaches the second preset threshold, it indicates that the starter motor has triggered the starter, and a corresponding detection signal is generated to control the connection of the energy storage module 1001 and the vehicle circuit 2000 based on the detection signal.

[0051] It should be noted that the difference between the embodiment of this application and the previous embodiment is that the previous embodiment typically only needs to detect the impedance value of the line impedance once, and generates a corresponding detection signal when the impedance value drops to a set first preset threshold. The embodiment of this application, however, requires dynamic monitoring of the line impedance value. When the impedance change at a certain moment relative to the line impedance at the initial moment is detected to reach a second preset threshold, a corresponding detection signal is generated.

[0052] Furthermore, the embodiments of this application can also be based on the previous embodiment. That is, the internal resistance detection circuit 111 first detects the impedance value of the line impedance to determine whether the smart clip 1002 is connected to the car battery 2001. When the impedance value drops to a first preset threshold, it indicates that the smart clip 1002 is connected to the car battery 2001, and the impedance change value of the line impedance is continuously detected to determine the starter motor's starting state. When the impedance change value reaches a second preset threshold, it indicates that the starter motor has been triggered, and a corresponding detection signal is generated to control the energy storage module 1001 and the vehicle circuit 2000 to be turned on based on the detection signal. In this way, detecting the starter motor's starting state when the smart clip 1002 is connected to the car battery 2001 can improve the reliability of detection and save energy consumption.

[0053] Please see Figure 1 and Figure 3 In some embodiments, the start-up circuit 100 further includes a controller module 30. The controller module 30 is connected to the detection module 10 and the switch module 20 respectively, and is used to receive the detection signal generated by the detection module 10 and control the on / off state of the switch module 20 based on the detection signal.

[0054] Specifically, the controller module 30 can be a microcontroller unit (MCU). The controller module 30 is connected to the detection module 10 and the switch module 20 respectively. Of course, the controller module 30 can also be connected to components such as the energy storage module 1001 and the smart clip 1002 as needed, and there are no restrictions here.

[0055] When the detection module 10 detects whether the vehicle circuit 2000 meets the preset start-up conditions and generates a corresponding detection signal, it sends the detection signal to the controller module 30. The controller module 30 controls the on / off state of the switch module 20 based on the detection signal. The switch module 20 may include a MOSFET or a relay, etc. The switch module 20 has an on state and an off state. When the controller module 30 controls the switch module 20 to be in the on state based on the detection signal, the energy storage module 1001 and the vehicle circuit 2000 are connected; when the controller module 30 controls the switch module 20 to be in the off state based on the detection signal, the energy storage module 1001 and the vehicle circuit 2000 are disconnected.

[0056] Please see Figure 3 In some embodiments, the internal resistance detection circuit 111 includes a constant current source 1111 and a signal generator 1112. The constant current source 1111 generates a current signal of a predetermined current value. The signal generator 1112 generates a pulse wave signal of a predetermined frequency value to modulate the current signal. The constant current source 1111 also outputs a voltage signal. The voltage signal and the current signal are used to determine the line impedance.

[0057] Specifically, the constant current source 1111 is used to generate a constant current signal. When a constant current flows through a component with a certain internal resistance, a stable voltage drop is generated, thereby outputting a voltage signal. The signal generator 1112 is used to generate a pulse wave signal, which can be used to modulate the current signal generated by the constant current source 1111 to more accurately monitor minute changes in line impedance. In addition, due to the duty cycle characteristics of the pulse waveform, the power consumed during line impedance detection is very small, and it will not cause a large load effect on the energy storage module 1001.

[0058] In this embodiment, since there is no additional continuous voltage source in the vehicle circuit 2000 besides the car battery 2001, there is no additional current in the vehicle circuit 2000, only signal pulses for detection. Thus, the internal resistance detection circuit 111 can accurately calculate the line impedance based on the current signal generated by the constant current source 1111 and the output voltage signal, according to Ohm's law.

[0059] Furthermore, since the current generated by the constant current source 1111 is constant, the voltage will decrease synchronously as the line impedance decreases. Therefore, in other examples, a corresponding detection signal can also be generated based on the voltage detection scheme, which is not limited here.

[0060] In some implementations, the frequency range of the predetermined frequency value is 0.01 to 1 MHz.

[0061] In other words, the predetermined frequency value can be any value within the range of 0.01 to 1 MHz. For example, the predetermined frequency value can be 0.01 MHz, 0.05 MHz, 0.1 MHz, 0.2 MHz, 0.3 MHz, 0.4 MHz, 0.5 MHz, 0.6 MHz, 0.7 MHz, 0.8 MHz, 0.9 MHz, 1 MHz, etc. In this embodiment, the predetermined frequency value satisfies the above frequency range, which can ensure the sensitivity and timeliness of the internal resistance detection circuit 111 in detecting the line impedance. Preferably, the predetermined frequency value is 1 MHz.

[0062] In some implementations, the predetermined current value is in the range of 50 to 200 mA.

[0063] In other words, the predetermined current value can be any value between 50 and 200 mA. For example, the predetermined current value can be 50 mA, 70 mA, 90 mA, 110 mA, 130 mA, 150 mA, 170 mA, 190 mA, 200 mA, etc. In the embodiments of this application, the predetermined current value meets the above current range, and the current value is high enough to enable the circuit to output a detectable voltage signal, thereby ensuring the effectiveness of the line impedance detection, while avoiding excessive energy consumption due to excessively high current value. Preferably, the predetermined current value is 100 mA.

[0064] Please see Figure 4 The emergency starter power supply 1000 according to this application includes a housing, an energy storage module 1001, a connection port 1003, an output path 1004, and a starter circuit 100 of any of the above embodiments. The housing includes at least a casing, and the energy storage module 1001 is disposed inside the casing. The connection port 1003 is electrically connected to the energy storage module 1001. The output path 1004 is detachably connected to the connection port 1003 and is used to electrically connect the connection port 1003 and the vehicle circuit 2000. The starter circuit 100 is disposed on the output path 1004 and is used to transmit the operating power of the energy storage module 1001 to start the vehicle.

[0065] Specifically, the energy storage module 1001 is housed inside the housing, which protects the energy storage module 1001.

[0066] The connector 1003 is electrically connected to the energy storage module 1001 and is used for power transmission between the energy storage module 1001 and the vehicle circuit 2000. The connector 1003 can be a USB interface, a socket port, etc.

[0067] The output path 1004 is detachably connected to the connection port 1003, forming a transmission channel for electrical energy from the energy storage module 1001 to the vehicle circuit 2000. The output path 1004 may include wiring assemblies, etc.

[0068] The starting circuit 100 is located on the output path 1004 and is used to transmit the operating power of the energy storage module 1001 to start the vehicle. The detection module 10 can detect whether the vehicle circuit 2000 meets the preset starting conditions and generate a corresponding detection signal. The switching module 20 controls the on / off state of the energy storage module 1001 and the vehicle circuit 2000 based on the detection signal, thereby controlling the power supply from the energy storage module 1001 to the vehicle circuit 2000. This prevents the energy storage module 1001 from discharging rapidly without sufficient energy to start the car.

[0069] Please see Figure 4 In some embodiments, the energy storage module 1001 includes a rechargeable battery or a supercapacitor. The rechargeable battery includes at least one of a sodium battery, a lithium battery, and a lead-acid battery.

[0070] Specifically, both the rechargeable battery and the supercapacitor can store electrical energy in advance and provide power to supply the vehicle's circuitry 2000 when needed.

[0071] Sodium batteries are relatively inexpensive and suitable for large-scale energy storage systems. Lithium batteries offer advantages such as high energy density, long cycle life, and low self-discharge rate. Lead-acid batteries are characterized by low cost, mature technology, and high safety. Supercapacitors offer advantages such as high power density, long cycle life, and rapid charge / discharge capabilities. When selecting energy storage module 1001, a suitable module can be chosen based on the specific application scenario and performance requirements of the emergency start-up power supply 1000; no restrictions are imposed here.

[0072] In summary, in the starting circuit 100 and emergency starting power supply 1000 of this application embodiment, the detection module 10 detects whether the vehicle circuit 2000 meets the preset starting conditions and generates a corresponding detection signal. The switching module 20 controls the on / off state of the energy storage module 1001 and the vehicle circuit 2000 based on the detection signal, so as to control the power supply of the energy storage module 1001 to the vehicle circuit 2000, thereby avoiding the situation where the energy storage module 1001 quickly discharges completely without sufficient energy to start the car.

[0073] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0074] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0075] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0076] The foregoing disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0077] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," and "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with an embodiment or example that are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0078] Although embodiments of this application have been shown and described above, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A startup circuit, characterized in that, The starting circuit is connected to the energy storage module and the vehicle circuit respectively, and is used to transmit the working power of the energy storage module to start the vehicle. The startup circuit includes: The detection module is used to detect whether the vehicle circuit meets the preset start-up conditions and generate a corresponding detection signal. A switching module is connected to both the energy storage module and the vehicle circuit, and is used to control the on / off state of the energy storage module and the vehicle circuit based on the detection signal.

2. The startup circuit according to claim 1, characterized in that, The vehicle circuit includes a starter motor, and the detection module includes a starter detection unit. The starter detection unit is used to detect the starter motor's start-up status and generate a corresponding detection signal based on the start-up status.

3. The startup circuit according to claim 2, characterized in that, The start-up detection unit includes an internal resistance detection circuit, which is used to detect the line impedance of the vehicle circuit and generate a corresponding detection signal based on the line impedance.

4. The startup circuit according to claim 3, characterized in that, The internal resistance detection circuit is used to detect the impedance value of the line impedance, and generates a corresponding detection signal when the impedance value drops to a first preset threshold.

5. The startup circuit according to claim 3, characterized in that, The internal resistance detection circuit is used to detect the impedance change value of the line impedance, and when the impedance change value reaches the second preset threshold, it generates a corresponding detection signal.

6. The starting circuit according to any one of claims 1-5, characterized in that, The startup circuit also includes a controller module, which is connected to the detection module and the switch module respectively. The controller module is used to receive the detection signal generated by the detection module and control the on / off state of the switch module based on the detection signal.

7. The startup circuit according to claim 3, characterized in that, The internal resistance detection circuit includes a constant current source and a signal generator. The constant current source is used to generate a current signal with a predetermined current value, and the signal generator is used to generate a pulse wave signal with a predetermined frequency value to modulate the current signal. The constant current source is also used to output a voltage signal. The voltage signal and the current signal are used to determine the line impedance.

8. The startup circuit according to claim 7, characterized in that, The predetermined frequency value has a frequency range of 0.01 to 1 MHz.

9. The startup circuit according to claim 7, characterized in that, The predetermined current value has a current range of 50 to 200 mA.

10. An emergency start-up power supply, characterized in that, include: The housing, which includes at least a shell; An energy storage module is disposed within the housing; The connection port is electrically connected to the energy storage module; An output path is detachably connected to the connection port and is used to electrically connect the connection port and the vehicle circuitry. And a starting circuit as described in any one of claims 1-9, the starting circuit being disposed on the output path for transmitting the operating power of the energy storage module to start the vehicle.

11. The emergency start-up power supply according to claim 10, characterized in that, The energy storage module includes a rechargeable battery or a supercapacitor, wherein the rechargeable battery includes at least one of sodium batteries, lithium batteries, and lead-acid batteries.

Images