In-vehicle starting power source

Abstract

When the power of the rechargeable battery drops below a preset power value, a vehicle-mounted starting power source is provided that timely charges the rechargeable battery, sufficiently maintains the power of the rechargeable battery, and effectively prevents damage caused by over-discharging of the battery. 【Solution means】The vehicle-mounted starting power source includes a main control module 10, a rechargeable battery connected to the main control module, and a power amount detection module 12 connected to both the main control module and the rechargeable battery. The power amount detection module detects the power amount of the rechargeable battery to generate a power amount signal and transmits the power amount signal to the main control module. The main control module acquires the power amount signal, determines the power amount of the rechargeable battery based on it, and when the power amount of the rechargeable battery drops below a preset power value, obtains electrical energy from the vehicle power supply terminal and performs reverse charging on the rechargeable battery. By installing the power amount detection module, the power amount of the rechargeable battery can be detected in real time.

Description

Technical Field

[0001] The present invention relates to the technical field of power supplies, and particularly to an in-vehicle starting power supply capable of reverse charging.

Background Art

[0002] An in-vehicle starting power supply is a multi-functional portable mobile power supply developed for users who drive cars. However, when users use an in-vehicle starting power supply, it has been found that there are several problems with conventional in-vehicle starting power supplies. For example, the power of the in-vehicle starting power supply is limited, and it is necessary to use dedicated external charging equipment for charging, and the charging method is inconvenient. In the suburbs, it may not even be possible to charge. In addition, when the vehicle is ignited multiple times, the battery capacity of the in-vehicle starting power supply will become insufficient. If the in-vehicle starting power supply cannot be charged in a timely manner, the in-vehicle starting power supply may become inoperable due to over-discharge. Also, in low-temperature regions, because the temperature is too low, the in-vehicle starting power supply cannot be used multiple times for starting the vehicle. Further, if it is not used for a long time, there are problems such as high power consumption of the starting power supply itself or the starting power supply not being completely turned off.

Summary of the Invention

Problems to be Solved by the Invention

[0003] In order to overcome the deficiencies of the prior art, the present invention provides an in-vehicle starting power supply that can effectively maintain the power of the rechargeable battery and prevent damage caused by over-discharge of the battery by realizing reverse charging of the rechargeable battery using the vehicle when the power of the rechargeable battery is insufficient.

Means for Solving the Problems

[0004] In order to solve the above problems, the present invention adopts the following technical solutions.

[0005] The in-vehicle starting power supply according to the present invention is an in-vehicle starting power supply that is electrically connected to an automotive power terminal to supply a starting voltage to start the vehicle. a main control module, a rechargeable battery connected to the main control module, and a power amount detection module connected to the main control module and the rechargeable battery simultaneously. The power amount detection module is arranged to detect the power amount of the rechargeable battery to generate a power amount signal and transmit the power amount signal to the main control module. The main control module is arranged to obtain the power amount signal to determine the power amount of the rechargeable battery, and when the power amount of the rechargeable battery is lower than a preset power amount value, obtain electrical energy from the vehicle power supply terminal to perform reverse charging on the rechargeable battery.

[0006] According to one embodiment, the rechargeable battery is electrically connected to the vehicle power supply terminal via a bidirectional control module and is arranged to supply the starting voltage. The bidirectional control module includes a 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 arranged to receive a forward control signal from the main control module and turn on the magnetic latching relay based on this. The reverse control circuit is arranged to receive a reverse control signal from the main control module and turn off the magnetic latching relay based on this.

[0007] According to one embodiment, the magnetic latching relay is a bidirectional magnetic latching relay.

[0008] According to one embodiment, after the vehicle starts, the power amount detection module detects the power amount of the rechargeable battery in real time, and the bidirectional control module maintains the connection state. When the power amount of the rechargeable battery detected by the main control module is lower than a preset power amount value, the vehicle power supply terminal is triggered to perform reverse charging on the rechargeable battery.

[0009] According to one embodiment, the power amount detection module includes a detection transistor, a first resistor, and a second resistor, The main control module is arranged to output a control signal to turn on the detection transistor, After the detection transistor is turned on, the positive electrode of the rechargeable battery is divided in voltage by the first resistor and the second resistor, The voltage at one end of the detection transistor is input to the detection port of the main control module.

[0010] According to one embodiment, the in-vehicle starting power source further includes a temperature detection module and / or a heating module connected to the main control module, The temperature detection module is arranged to detect the temperature of the rechargeable battery, When the temperature of the rechargeable battery is lower than a preset temperature, the main control module activates the heating module to heat the rechargeable battery.

[0011] According to one embodiment, when the temperature of the rechargeable battery reaches a first heating temperature, the main control module controls the rechargeable battery to output power to start the vehicle.

[0012] According to one embodiment, when the temperature of the rechargeable battery reaches a second heating temperature, the main control module controls to stop the operation of the heating module.

[0013] According to one embodiment, the temperature detection module includes an NTC sensor that contacts the rechargeable battery to detect the temperature of the rechargeable battery.

[0014] According to one embodiment, the heating module includes a heating sheet that is in thermal contact with the rechargeable battery.

[0015] According to one embodiment, the in-vehicle starting power supply includes a power amount display module connected to the main control module, a lighting module connected to the main control module, and a charging module for charging the rechargeable battery. The power amount display module is arranged to display the remaining amount of the rechargeable battery. The lighting module provides a lighting function. A battery protection module is connected between the charging module and the rechargeable battery.

[0016] According to one embodiment, the in-vehicle starting power supply further includes a housing and a circuit board. An accommodation chamber for accommodating the rechargeable battery and the circuit board is formed inside the housing. The main control module is integrated on the circuit board. According to one embodiment, the housing includes an upper case and a lower case. The accommodation chamber is formed inside the upper case and the lower case. The housing is provided with a positive charging clip and a negative charging clip. One end of the positive charging clip is connected to the positive electrode of the rechargeable battery, and the other end of the positive charging clip is connected to the automotive power supply terminal. One end of the negative charging clip is connected to the negative electrode of the rechargeable battery, and the other end of the negative charging clip is connected to the automotive power supply terminal.

[0017] According to one embodiment, the housing is provided with a positive storage part for accommodating the positive charging clip and a negative storage part for accommodating the negative charging clip.

[0018] According to one embodiment, the upper case is provided with a power amount display structure. The power amount display structure includes a plurality of light-emitting diodes connected to the main control module. The main control module is arranged to display the remaining amount of the rechargeable battery by turning on or off one or more of the plurality of light-emitting diodes.

[0019] According to one embodiment, a plurality of partition members are provided so as to protrude from the inner wall of the lower case. The plurality of partition members are arranged at intervals for attaching the plurality of rechargeable batteries. A fixture is connected between two adjacent partition members. The fixture is provided in an arc shape toward the rechargeable battery to sandwich the rechargeable battery.

Advantages of the Invention

[0020] The present utility model has the following beneficial effects. By installing a power amount detection module, the power amount of the rechargeable battery is detected in real time. When the power amount of the rechargeable battery is lower than a preset power amount value, the main control module controls the vehicle power terminal to charge the rechargeable battery, and by performing reverse charging on the rechargeable battery, the power amount of the rechargeable battery can be sufficiently maintained, and damage caused by over-discharge of the battery can be effectively prevented. Furthermore, by installing a temperature detection module in the present invention, the temperature of the rechargeable battery is detected in real time. When the temperature of the rechargeable battery is lower than a preset temperature, the main control module activates the heating module to heat the battery, so as to maintain a high-rate power output of the rechargeable battery to the vehicle and start the vehicle normally. Furthermore, by installing an illumination module, illumination can be provided to the user outdoors or in a place with poor visibility, bringing convenience to the user.

Brief Description of the Drawings

[0021] To more clearly explain the technical aspects in the embodiments of the present invention, the drawings necessary for use in the description of the embodiments will be briefly described below. The drawings in the following description are only some embodiments of the present invention, and those skilled in the art can also obtain other drawings based on these drawings without creative labor.

[0022]

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Embodiments for Carrying Out the Invention

[0023] Refer to FIGS. 1 to 11. The in-vehicle starting power supply according to the present invention is electrically connected to the vehicle power supply terminal 31 to supply a voltage for starting the vehicle to the vehicle power supply terminal 31. The aforementioned in-vehicle starting power supply includes a main control module 10, a rechargeable battery 11 connected to the main control module 10, and a power amount detection module 12 connected to the main control module 10 and the rechargeable battery 11. The power amount detection module 12 detects the power amount of the rechargeable battery 11 to generate a power amount signal and transmits the power amount signal to the main control module 10. The main control module 10 acquires the power amount signal to determine the power amount of the rechargeable battery 11, and when the power amount of the rechargeable battery 11 is lower than a preset power amount value, it obtains electrical energy from the vehicle power supply terminal 31 and performs reverse charging on the rechargeable battery 11. There are two vehicle power supply terminals 31, which are a positive terminal and a negative terminal respectively.

[0024] In this embodiment, the in-vehicle starting power supply can charge the vehicle via the vehicle power supply terminal 31 under the control of the main control module 11 as an emergency auxiliary power supply when the vehicle power supply terminal 31 cannot be started (specifically, charge the battery device installed inside the vehicle). By installing the power amount detection module 12, the in-vehicle starting power supply can detect the power amount of the rechargeable battery 11 in real time. When the power amount of the rechargeable battery 11 is lower than a preset power amount value, the main control module 10 immediately controls the vehicle power supply terminal 31 to reverse charge the rechargeable battery 11 to make the power amount of the rechargeable battery 11 sufficient, avoiding damage to the rechargeable battery 11 due to over-discharge, effectively protecting the rechargeable battery 11, and solving the problem that the vehicle needs to use external charging equipment to charge the rechargeable battery after starting the ignition many times. The rechargeable battery 11 is a lithium battery. In this embodiment, several lithium batteries are connected to achieve better energy storage and supply.

[0025] In one embodiment, as shown in FIGS. 1 and 2, the power amount 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 electrode of the rechargeable battery 11 is voltage-divided by the first resistor R8 and the second resistor R9. One end of the detection transistor Q3 (i.e., the two ends of the detection transistor Q3 in FIG. 3) is used as the voltage division point. The voltage at the voltage division point is filtered through the first capacitor C21 and input to the detection port of the main control module 10. As the voltage of the rechargeable battery changes, the voltage at the voltage division point also changes. Thereby, the detection of the power amount to the rechargeable battery 11 is realized. Further, by providing the first capacitor C21 to filter the voltage at the voltage division point, noise is reduced and the accuracy of the detected power amount of the rechargeable battery is high.

[0026] In one embodiment, as shown in FIGS. 1 to 3, the rechargeable battery 11 is electrically connected to the vehicle power supply terminal 31 via the bidirectional control module 13. The bidirectional 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 turns on the magnetic latching relay K1 based on the forward control signal. The reverse control circuit receives a reverse control signal from the main control module 10 and turns off the magnetic latching relay K1 based on the reverse control signal. In this embodiment, by providing the forward control circuit, the magnetic latching relay K1 is controlled to be turned on, and by providing the reverse control circuit, the magnetic latching relay K1 is controlled to be turned off. Thereby, the problem that the output of the rechargeable battery cannot be completely cut off is solved. The magnetic latching relay K1 does not require continuous power supply to maintain its operating state and can significantly reduce the waste of electrical energy. Also, since the contact state of the magnetic latching relay K1 is held by the magnetic force of the permanent magnet, it can maintain the current state even after the power is turned off, eliminating the need for continuous power supply and effectively enhancing stability. In one embodiment, the magnetic latching relay K1 is a bidirectional magnetic latching relay.

[0027] Specifically, as shown in FIG. 3, the forward control circuit includes a forward transistor Q1, a first forward MOS transistor Q5 (G2S2D2), and a second forward MOS transistor Q4 (G1S1D1). The forward transistor Q1 performs two-stage control to control the main control module 10 to conduct the first forward MOS transistor Q5 (G2S2D2) and the second forward MOS transistor Q4 (G1S1D1). The main control module 10 outputs a KS1 valid signal and a KS2 valid signal as forward control signals to control the magnetic latching relay K1 to turn on.

[0028] The reverse control circuit includes a reverse transistor Q2, a first reverse MOS transistor Q4 (G2S2D2), and a second reverse MOS transistor Q5 (G1S1D1). The reverse transistor Q2 performs two-stage control to control the main control module 10 to turn on the first reverse MOS transistor Q4 (G2S2D2) and the second reverse MOS transistor Q5 (G1S1D1). The main control module 10 outputs a KS3 valid signal and a KS4 valid signal as reverse control signals to control the magnetic holding relay K1 to turn off.

[0029] Note that the forward and reverse directions are only used to describe the signal transmission direction and are not particularly limited. Therefore, the KS1 valid signal and the KS2 valid signal can be used as reverse control signals. In this case, the KS3 valid signal and the KS4 valid signal are used as forward control signals.

[0030] In this embodiment, a bidirectional control module 13 is connected between the automotive power supply terminal 31 and the rechargeable battery 11. After the vehicle is started, the power amount detection module 12 detects the power amount of the rechargeable battery 11 in real time. The bidirectional control module 13 maintains communication, and the main control module 10 obtains electrical energy from the automotive power supply terminal 31 to reverse charge the rechargeable battery 11 when the power amount of the rechargeable battery 11 is lower than a preset power amount value.

[0031] In this embodiment, after the vehicle is started, the bidirectional control module 13 continues to maintain communication even if the power supply is not continued. When the power amount of the rechargeable battery 11 is low, the main control module 10 timely controls the automotive power supply terminal 31 to charge the rechargeable battery 11 in a timely manner.

[0032] As shown in FIG. 2, the in-vehicle starting power supply 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 for detecting the temperature of the rechargeable battery 11. The heating module 15 contacts 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 with the heating module 15. Specifically, the operation circuit diagrams of the temperature detection module 14 and the heating module 15 are as shown in FIG. 2. The temperature detection module 14 includes an NTC sensor for accurately detecting the temperature of the rechargeable battery 11 by contacting the rechargeable battery 11. The heating module 15 includes a heating sheet that contacts the rechargeable battery 11. In other embodiments, the heating module 15 includes, but is not limited to, heating wires, heating films, and thermocouples. Usually, in a low-temperature environment, since the temperature is too low, the rechargeable battery 11 cannot support multiple ignitions of the vehicle, and the output efficiency is very low. In this embodiment, the temperature of the rechargeable battery 11 is detected in real time, and in a low-temperature environment, the rechargeable battery 11 is automatically heated to keep the rechargeable battery 11 at an appropriate temperature, realizing that the rechargeable battery 11 outputs power to the vehicle at a high rate. Thereby, even in a low-temperature environment, the rechargeable battery 11 is still available for multiple ignitions.

[0033] Specifically, when the temperature of the rechargeable battery 11 is lower than a preset temperature, the main control module 10 controls the heating module 15 to heat it. When the temperature of the rechargeable battery 11 reaches the first heating temperature, the main control module 10 obtains electrical energy from the vehicle power supply terminal 31 and reversely charges 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 its operation. By setting the first heating temperature, the present invention ensures the high-rate output of the rechargeable battery 11. Also, by setting the second heating temperature, the heating of the heating module 15 can be automatically stopped, and damage to the rechargeable battery 11 due to excessively high temperature can be avoided. Regarding the preset temperature, the first heating temperature, and the second heating temperature, as long as the preset temperature is less than the first heating temperature and the first heating temperature is less than the second heating temperature, they can be set according to the actual situation. As an example, the preset temperature is 5°C, the first heating temperature is 12°C, and the second heating temperature is 20°C.

[0034] As shown in FIG. 2, the in-vehicle starting power supply further includes a power amount display module 16 connected to the main control module 10. The power amount display module 16 displays the power amount of the rechargeable battery 11. In this embodiment, by providing the power amount display module 16, the remaining amount of the rechargeable battery 11 can be intuitively informed to the user. In other embodiments, a speaker may be provided to broadcast the remaining amount of the rechargeable battery 11.

[0035] As shown in FIG. 4, the in-vehicle starting power supply further includes a lighting module 17 connected to the main control module 10 for lighting. In this embodiment, by arranging the lighting module 17, lighting can be provided to the user outdoors or in a place with poor visibility. For example, the lighting module 17 can facilitate the connection operation of the user's power supply line in an environment with poor lighting.

[0036] As shown in FIG. 5, the in-vehicle starting power supply 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, and reverse charging of the rechargeable battery 11 is realized via the USB charging interface.

[0037] As shown in FIG. 6, a battery protection module 19 is connected between the charging module 18 and the rechargeable battery 11 in the in-vehicle starting power supply. In this embodiment, the battery protection module 19 has a current protection function to protect the rechargeable battery 11.

[0038] In one embodiment, as shown in FIGS. 7 and 10, the in-vehicle starting power supply further includes a housing 20 and a circuit board 21. An accommodation chamber 203 for mounting the rechargeable battery 11 and the circuit board 21 is formed inside the housing 20. The main control module 10 is integrated on the circuit board 21. In this embodiment, the main control module 10, the power amount detection module 12, the bidirectional control module 13, the temperature detection module 14, the heating module 15, the power amount 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, a master chip, a lighting chip, a battery protection chip, and a charging chip are integrated on the circuit board 21. Here, the main control module 10, the power amount detection module 12, the bidirectional control module 13, the temperature detection module 14, the heating module 15, and the power amount display module 16 are all encapsulated in the master chip, the lighting module 17 is encapsulated in the lighting chip, the charging module 18 is encapsulated in the charging chip, and the battery protection module 19 is encapsulated in the battery protection chip, ensuring the efficient operation of each module. The master chip adopts low-power consumption technology and can maintain a longer standby time of the starting battery. Specifically, the power consumption of the master chip is less than 50 mW.

[0039] In one embodiment, as shown in FIGS. 9 to 11, the housing 20 includes an upper case 201 and a lower case 202 that engage with each other. Inside the upper case 201 and the lower case 202, the aforementioned accommodation chamber 203 is formed. Further, the housing 20 is provided with a positive charging clip 22 and a negative charging clip 23. One end of the positive charging clip 22 is connected to the positive electrode of the rechargeable battery 11, and the other end is connected to the positive terminal of the vehicle power supply terminal 31. One end of the negative charging clip 23 is connected to the negative electrode of the rechargeable battery 11, and the other end is connected to the negative terminal of the vehicle power supply terminal 31.

[0040] The case 20 is provided with a positive accommodation portion 24 for accommodating the positive charging clip 22 and a negative accommodation portion 25 for accommodating the negative charging clip 23. By providing the positive storage portion 24 and the negative storage portion 25 and storing the positive charging clip 22 and the negative charging clip 23 respectively, the positive charging clip 22 and the negative charging clip 23 can be better stored and protected, and it is possible to avoid their damage.

[0041] In one embodiment, as shown in FIGS. 9 to 11, the positive electrode storage portion 24 includes a positive electrode concave groove 241 formed on the outer surface of the upper case 201 and a positive electrode wiring groove 242. The positive electrode concave groove 241 and the positive electrode wiring groove 242 communicate with each other for placing the positive electrode charging clip 22. The negative electrode storage portion 25 includes a negative electrode concave groove 251 formed on the outer surface of the upper case 201 and a negative electrode wiring groove 252. The negative electrode concave groove 251 and the negative electrode wiring groove 252 communicate with each other for placing the negative electrode charging clip 23. In this embodiment, the positive electrode charging clip 22 includes a positive electrode clip and a positive electrode connection wire. The positive electrode clip is attached in the positive electrode concave groove 241, and the positive electrode connection wire is attached in the positive electrode wiring groove 242. Since the positive electrode concave groove 241 matches the shape of the positive electrode clip and the positive electrode wiring groove 242 matches the shape of the positive electrode connection wire, a better storage effect can be obtained and the positive electrode charging clip 22 can be protected. Similarly, the negative electrode charging clip 23 includes a negative electrode clip and a negative electrode connection wire. The negative electrode clip is attached in the negative electrode concave groove 251, and the negative electrode connection wire is attached in the negative electrode wiring groove 252. Since the negative electrode concave groove 251 matches the shape of the negative electrode clip and the negative electrode wiring groove 252 matches the shape of the negative electrode connection wire, a better storage effect can be obtained and the negative electrode charging clip 23 can be protected.

[0042] The upper case 201 is provided with a power amount display structure 26. The power amount display structure 26 includes a plurality of light emitting diodes connected to the main control module 10. The main control module 10 turns on / off one or more of the plurality of light emitting diodes to display the power amount of the rechargeable battery 11. In this embodiment, by providing a plurality of light emitting diodes, the main control module 10 knows the remaining amount of the rechargeable battery 11 based on the power amount detection module 12 and controls the number of light emitting diodes according to the remaining amount so that the user can intuitively understand the remaining amount of the rechargeable battery 11. Also, other methods may be used to display the remaining amount of the rechargeable battery 11. For example, the remaining amount of the rechargeable battery 11 may be notified to the user using an audio broadcast method or displayed using a display panel, and is not limited here.

[0043] On the inner wall of the lower case 202, a plurality of partition members 27 project. The plurality of partition members 27 are arranged at intervals for attaching the plurality of rechargeable batteries 11. In this embodiment, by providing the partition members 27, the plurality of rechargeable batteries 11 are separated, and the rechargeable batteries 11 are better protected so that the plurality of rechargeable batteries 11 do not push each other out.

[0044] To the two adjacent partition members 27, fixtures 28 arranged in an arc shape toward the rechargeable battery 11 are connected for clamping the rechargeable battery 11. Preferably, several fixtures 28 are connected to the two adjacent partition members 27 to stably attach the rechargeable battery 11 to the fixtures 28 and ensure that the rechargeable battery 11 is stably attached to the housing 20.

[0045] The operation process of the in-vehicle starting power supply of this invention is as follows. When the vehicle is started, the bidirectional control module 13 is connected, and the rechargeable battery 11 provides electrical energy to the vehicle. After the vehicle is started, the bidirectional control module 13 continues to be in the connected state, and the main control module 10 outputs a control signal to control the detection transistor of the power quantity detection module 12 to conduct. The positive electrode of the rechargeable battery 11 is voltage-divided by the first resistor and the second resistor. One end of the detection transistor functions as a voltage-dividing point. The voltage of the voltage-dividing point is filtered by the first capacitor and then input to the detection port of the main control module 10. Along with the change of the battery voltage, the voltage of the voltage-dividing point also changes, realizing the detection of the power quantity of the rechargeable battery 11. When the power quantity of the rechargeable battery 11 is lower than a preset power quantity value, the main control module 10 controls the vehicle power supply terminal 31 to charge the rechargeable battery 11, realizing reverse charging to the rechargeable battery 11 and preventing damage to the rechargeable battery 11 caused by over-discharge. Furthermore, by providing a temperature detection module 14, the temperature of the rechargeable battery 11 can be detected 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 the first heating temperature, the main control module 10 obtains electrical energy from the vehicle power supply terminal 31 and conducts reverse charging to the rechargeable battery 11. When the temperature of the rechargeable battery 11 reaches the second heating temperature, the main control module 10 controls to stop the operation of the heating module 15. By setting the first heating temperature, automatic heating of the rechargeable battery 11 can be realized, and high-rate output of the rechargeable battery 11 can be guaranteed. Furthermore, by providing a power quantity display module 16, the remaining amount of the rechargeable battery 11 can be intuitively informed to the user. Furthermore, by providing an illumination module 17, illumination can be provided to the user outdoors or in places with poor visibility, facilitating other operations of the user.

[0046] The above are only one or more embodiments provided based on specific contents, and the specific embodiments of this utility model are not limited to these descriptions. Any technologies that are approximate or similar to the method, structure, etc. of this utility model, or some technical inferences or substitutions made under the concept of this utility model, should all be regarded as belonging to the protection scope of this utility model.

Description of Reference Numerals

[0047] 10: Main control module 11: Rechargeable battery 12: Electric quantity detection module 13: Bidirectional control module 14: Temperature detection module 15: Heating module 16: Electric quantity display module 17: Lighting module 18: Charging module 19: Battery protection module 20: Housing 201: Upper case 202: Lower case 203: Accommodation chamber 21: Circuit board 22: Positive charging clip 23: Negative charging clip 24: Positive electrode storage part 241: Positive electrode concave groove 242: Positive electrode wiring groove 25: Negative electrode storage part 251: Negative electrode concave groove 252: Negative electrode wiring groove 26: Electric quantity display structure 27: Partition member 28: Fixture

Claims

1. An on-board starting power supply that is electrically connected to an automobile power supply terminal to supply a starting voltage and start the automobile, A main control module; a rechargeable battery connected to the main control module; a power amount detection module simultaneously connected to the main control module and the rechargeable battery; the power amount detection module is arranged to detect the power amount of the rechargeable battery to generate a power amount signal, and send the power amount signal to the main control module; The main control module is configured to obtain the power amount signal to determine the power amount of the rechargeable battery, and when the power amount of the rechargeable battery falls below a preset power amount value, to obtain electrical energy from the automobile power terminal and perform reverse charging on the rechargeable battery.

2. the rechargeable battery is electrically connected to the vehicle power terminal via a bidirectional control module and is configured to provide the starting voltage; the bidirectional control module includes a magnetic hold relay, a forward control circuit connected to the main control module and the magnetic hold relay, and a reverse control circuit connected to the main control module and the magnetic hold relay; the forward control circuit is configured to receive a forward control signal from the master control module and to turn on the magnetic hold relay based thereon; the reverse control circuit is configured to receive a reverse control signal from the main control module and, based thereon, turn off the magnetic hold relay; 2. The vehicle-mounted starting power supply according to claim 1, wherein the magnetic hold relay is a bidirectional magnetic hold relay.

3. After the vehicle is started, the power amount detection module detects the power amount of the rechargeable battery in real time, and the bidirectional control module maintains a connection state; 3. The vehicle startup power supply according to claim 2, wherein the main control module triggers an automobile power terminal to perform reverse charging on the rechargeable battery when the power amount of the rechargeable battery falls below a preset power amount value.

4. the power amount detection module includes a detection transistor, a first resistor and a second resistor; the master control module is arranged to output a control signal to cause the detection transistor to conduct; After the detection transistor is turned on, the positive electrode of the rechargeable battery is divided by the first resistor and the second resistor; 2. The vehicle-mounted startup power supply according to claim 1, wherein the voltage at one end of the detection transistor is input to a detection port of a main control module.

5. The on-board startup power supply further includes a temperature detection module and / or a heating module connected to the main control module; the temperature detection module is arranged to detect a temperature of the rechargeable battery; 2. The vehicle start-up power supply according to claim 1, wherein when the temperature of the rechargeable battery falls below a preset temperature, the main control module activates the heating module to heat the rechargeable battery.

6. When the temperature of the rechargeable battery reaches a first heating temperature, the main control module controls the rechargeable battery to output power to start the vehicle; When the temperature of the rechargeable battery reaches a second heating temperature, the main control module controls the heating module to stop operating; the temperature detection module includes an NTC sensor in contact with the rechargeable battery to detect a temperature of the rechargeable battery; 6. The vehicle-mounted startup power supply according to claim 5, wherein the heating module includes a heating piece in thermal contact with the rechargeable battery.

7. The vehicle-mounted startup power supply includes a power amount display module connected to the main control module, a lighting module connected to the main control module, and a charging module for charging the rechargeable battery; the power display module is arranged to display the remaining power of the rechargeable battery; The lighting module provides a lighting function; a battery protection module is connected between the charging module and the rechargeable battery; The vehicle start-up power supply further includes a housing and a circuit board. The housing has an accommodating chamber formed therein for accommodating the rechargeable battery and the circuit board; 2. The vehicle start-up power supply according to claim 1, wherein the main control module is integrated on the circuit board.

8. The housing includes an upper case and a lower case, The upper case and the lower case have an accommodating chamber formed therein, The housing is provided with a positive charging clip and a negative charging clip, One end of the positive charging clip is connected to the positive electrode of the rechargeable battery, and the other end of the positive charging clip is connected to a vehicle power terminal; 8. The vehicle-mounted starting power supply according to claim 7, wherein one end of the negative charging clip is connected to the negative electrode of the rechargeable battery, and the other end of the negative charging clip is connected to a vehicle power terminal.

9. The housing is provided with a positive electrode storage portion for storing the positive electrode charging clip and a negative electrode storage portion for storing the negative electrode charging clip, The upper case is provided with a power amount display structure, the power amount indicating structure includes a plurality of light emitting diodes connected to the main control module; 9. The vehicle start-up power supply according to claim 8, wherein the main control module is arranged to indicate a remaining charge of the rechargeable battery by turning on or off one or more of the plurality of light emitting diodes.

10. A plurality of partition members are provided to protrude from an inner wall of the lower case, the plurality of partition members are spaced apart to accommodate the plurality of rechargeable batteries; A fixture is connected between two adjacent partition members, 9. The on-board startup power source according to claim 8, wherein the fixing member is provided in an arc shape toward the rechargeable battery in order to clamp the rechargeable battery.

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