Automobile starting device

Abstract

The invention provides an automobile starting device, which relates to the technical field of automobile emergency starting power supply, and specifically comprises: two smart clips, which are respectively connected to the positive and negative input terminals of an automobile battery, and the inner sides of the two insulating clip bodies of the smart clips are respectively provided with a conductive clip, and the two conductive clips are respectively connected to a power line and a signal line; a control circuit, which is respectively connected to the two smart clips and an automobile starting power supply, and the control circuit comprises a relay, a protection circuit and a control chip, the input ends of the protection circuit are respectively connected to the two smart clips, and the output ends are connected to the automobile starting power supply through the relay, and the output ends are also connected to the control chip; the protection circuit comprises: a reverse connection protection circuit, an overcurrent protection circuit and at least one temperature probe; the beneficial effect is that when the two smart clips are reversely connected, the relay can be controlled to be disconnected to stop the automobile starting power supply output; and an overcurrent detection circuit is set to detect the output current of the smart clip, and when the output current is too large, the power supply output is controlled to be stopped to avoid danger.

Description

Technical Field

[0001] The invention relates to the technical field of automobile emergency starting power supply, and in particular to an automobile starting device. Background Art

[0002] Lithium battery starting power supplies are becoming more and more popular in the market. They are popular among consumers because of their portability, diverse functions and strong starting ability. However, when lithium batteries are starting, reverse connection, short circuit, overcurrent and reverse charging may occur. Therefore, the protection function of the lithium battery starting power supply smart clamp is particularly important. The existing lithium battery starting power supply smart clamp adopts two schemes to protect the circuit:

[0003] Solution 1: MOS tube solution, using MOS tube and single-chip microcomputer to complete protection; MOS tube has the advantages of small size and fast protection speed, but MOS tube also has the disadvantages of poor instantaneous large current resistance, poor static resistance and poor high voltage pulse resistance; once the MOS tube fails, it will lead to the following consequences:

[0004] 1. When starting the car, if the starting power clip and the battery are reversely connected, it will cause fire and explosion;

[0005] 2. When starting the car, once the car is started by the starting power supply, the generator will charge the battery. If the voltage of the car battery exceeds the voltage of the lithium battery starting power supply, backflow will occur, which will cause fire and explosion;

[0006] 3. If the user accidentally short-circuits the positive and negative clamps of the battery, the battery will be short-circuited, causing fire and explosion;

[0007] Solution 2, relay solution, uses relays and microcontrollers to complete protection;

[0008] The relay solution has the advantages of ensuring that the smart clamp can pass a large current in a short time and that the smart clamp can withstand an excessive voltage instantaneously. However, the existing relay solution lacks reverse connection protection for the smart clamp control circuit, overcurrent protection for the smart clamp control circuit, temperature protection for the car starting power supply, and power supply detection for the car starting power supply, which can easily cause the starting power supply to catch fire and explode. Summary of the invention

[0009] In view of the problems existing in the prior art, the present invention provides a vehicle starting device, which specifically comprises:

[0010] Two smart clips are connected to the positive input terminal and the negative input terminal of the car battery respectively. A conductive clip is provided on the inner side of the two insulating clip bodies of each smart clip respectively, and the two conductive clips are connected to a power line and a signal line respectively.

[0011] A control circuit is connected to the two smart clips and a car starting power supply, respectively. The control circuit includes a relay, a protection circuit and a control chip. The input end of the protection circuit is connected to the two smart clips, respectively. The output end of the protection circuit is connected to the car starting power supply through the relay. The output end of the protection circuit is also connected to the control chip.

[0012] The protection circuit comprises:

[0013] A reverse connection protection circuit, wherein the input end of the reverse connection protection circuit is respectively connected to the signal lines of the two smart clips, and the output end of the reverse connection protection circuit is respectively connected to the relay and the control chip;

[0014] An overcurrent protection circuit, wherein the input end of the overcurrent protection circuit is respectively connected to the power lines of the two smart clips, and the output end of the overcurrent protection circuit is respectively connected to the relay and the control chip;

[0015] At least one temperature probe, one end of the temperature probe is arranged inside the automobile starting power supply, the other end of the temperature probe extends out of the automobile starting power supply, and the temperature probe is connected to the control chip.

[0016] Preferably, the car starting power supply is powered by a lithium battery, and a plurality of the lithium batteries are encapsulated in the car starting power supply, and one end of the temperature probe is clamped between two adjacent lithium batteries, and the other end extends out of the car starting power supply.

[0017] Preferably, the two smart clips are respectively a positive output clip connected to the positive input terminal of the car battery and a negative output clip connected to the negative input terminal of the car battery;

[0018] The reverse connection protection circuit comprises:

[0019] An operational amplifier, wherein the output end of the operational amplifier is connected to the cathode of a first diode, the anode of the first diode is connected to the relay, and the output end of the operational amplifier is also connected to the control chip via a first resistor;

[0020] The non-inverting input terminal of the operational amplifier is respectively connected to a second resistor, a third resistor and a fourth resistor, and the other end of the second resistor is connected to a 5V power supply, the other end of the third resistor is grounded, the other end of the fourth resistor is respectively connected to a fifth resistor and a cathode of a second diode, the other end of the fifth resistor is connected to the signal line of the positive output clip, and the cathode of the second diode is connected to the signal line of the negative output clip;

[0021] The inverting input terminal of the operational amplifier is respectively connected to a sixth resistor and a seventh resistor, the other end of the sixth resistor is connected to a 5V power supply, and the other end of the seventh resistor is grounded;

[0022] The positive power supply terminal of the operational amplifier is connected to a 5V power supply, and the negative power supply terminal of the operational amplifier is grounded.

[0023] Preferably, the control circuit further includes:

[0024] A power detection circuit is connected to the control chip, the vehicle starting power supply and the signal line of the positive output clip respectively.

[0025] Preferably, the power detection circuit comprises:

[0026] A P-channel enhancement type MOS transistor, wherein the drain of the P-channel enhancement type MOS transistor is respectively connected to an eighth resistor, a cathode of a voltage stabilizing diode and a positive output terminal of a vehicle starting power supply, the gate of the P-channel enhancement type MOS transistor is respectively connected to the other end of the eighth resistor and a tenth resistor, the source of the P-channel enhancement type MOS transistor is respectively connected to the anode of the voltage stabilizing diode and a ninth resistor, the other end of the ninth resistor is connected to the anode of a third diode, and the cathode of the third diode is connected to the signal line of the positive output clip;

[0027] A triode, wherein the base of the triode is respectively connected to an eleventh resistor and a twelfth resistor, the other end of the eleventh resistor is connected to the control chip, and the other end of the twelfth resistor is grounded;

[0028] The collector of the transistor is connected to the other end of the tenth resistor, and the emitter of the transistor is grounded.

[0029] Preferably, the signal line and the power line are sheathed in an outer sheath.

[0030] Preferably, a display device is further included, which is connected to the control chip. The control chip respectively obtains the output result of the protection circuit, the output result of the temperature probe and the output result of the power supply detection circuit and sends them to the display device for display.

[0031] Preferably, the control chip is a single-chip microcomputer chip.

[0032] Preferably, a first circuit board is provided inside the insulating clamp, and the control circuit is integrated on the first circuit board; or

[0033] A second circuit board is disposed outside the insulating clamp, and the control circuit is integrated on the second circuit board.

[0034] The above technical solution has the following advantages or beneficial effects:

[0035] 1) Set up a temperature probe to detect the real-time temperature of the car's starting power supply to prevent the lithium battery from exploding due to excessive temperature.

[0036] 2) A reverse connection protection circuit is set up, which can control the relay to disconnect when the two smart clamps are reversely connected to stop the car starting power output and avoid lithium battery explosion.

[0037] 3) A power detection circuit is set up, and a PWM signal is sent through the control chip. When the PWM signal is detected at the output end of the smart clamp, it indicates that the car starting power is invalid or the smart clamp is not clamped, so as to prompt the user to check.

[0038] 4) An overcurrent protection circuit is set to detect the output current of the smart clip and control the car starting power output to stop when the output current exceeds a current threshold, so as to avoid the lithium battery explosion caused by excessive current. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 The present invention is a block diagram of a vehicle starting device in a preferred embodiment of the present invention.

[0040] Figure 2 FIG. 4 is a circuit diagram of a reverse connection protection circuit in a preferred embodiment of the present invention.

[0041] Figure 3 FIG. 4 is a circuit diagram of a power detection circuit in a preferred embodiment of the present invention.

[0042] Figure 4 This is a schematic structural diagram of a smart clip in a preferred embodiment of the present invention.

[0043] Figure 5 This is a schematic diagram of the connection between the temperature probe and the car starting power supply in a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0044] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. The present invention is not limited to this embodiment, and other embodiments may also fall within the scope of the present invention as long as they conform to the gist of the present invention.

[0045] In a preferred embodiment of the present invention, based on the above problems existing in the prior art, the present invention now provides a vehicle starting device, such as Figure 1 As shown, specifically including:

[0046] Two smart clips 1 are connected to the positive input terminal and the negative input terminal of the car battery 2 respectively. A conductive clip 12 is provided on the inner side of the two insulating clips of each smart clip 1, and the two conductive clips 12 are connected to a power line 13 and a signal line 14 respectively.

[0047] The control circuit 2 is connected to the two smart clips 1 and the car starting power supply 3 respectively. The control circuit 2 includes a relay 21, a protection circuit 22 and a control chip 23. The input end of the protection circuit 22 is connected to the two smart clips 1 respectively, and the output end of the protection circuit 22 is connected to the car starting power supply 3 through the relay 21. The output end of the protection circuit 22 is also connected to the control chip 23;

[0048] The protection circuit 22 includes:

[0049] A reverse connection protection circuit 221, the input end of which is respectively connected to the signal lines 14 of the two smart clips 1, and the output end of which is respectively connected to the relay 21 and the control chip 23;

[0050] An overcurrent protection circuit 222, the input end of the overcurrent protection circuit 222 is respectively connected to the power lines 13 of the two smart clips 1, and the output end of the overcurrent protection circuit 222 is respectively connected to the relay 21 and the control chip 23;

[0051] At least one temperature probe 5 , one end of the temperature probe 5 is disposed inside the vehicle starting power supply 3 , and the other end of the temperature probe 5 extends out of the vehicle starting power supply 3 , and the temperature probe 5 is connected to the control chip 23 .

[0052] Specifically, in this embodiment, the car battery 2 and the car starting power supply 3 are connected respectively through the control circuit 2, and the control circuit 2 realizes the on and off of the power output of the car starting power supply 3 by controlling the relay 21 to be attracted and disconnected, and the car starting power supply 3 is protected by the protection circuit 22:

[0053] A reverse connection protection circuit 221 is provided, which has two output branches, one output branch connected to the control chip 23, and the other output branch connected to the relay. When the two signal lines 14 are reversely connected, the output signal of the output branch of the reverse connection protection circuit 221 connected to the relay will change. At this time, the relay 21 can be controlled to disconnect to stop the output of the vehicle starting power supply 3 by turning off the power supply of the relay or turning off the driving signal of the relay. At the same time, the output signal of the output branch connected to the control chip 23 will also change. When the control chip 23 collects the change of the output signal, it can be determined that a reverse connection has occurred at this time.

[0054] An overcurrent protection circuit 222 is provided to collect the output current data on the two power lines 13 and feed it back to the control chip 23. The control chip 23 compares the real-time current data with a preset current threshold value, and when the real-time current data is greater than the current threshold value, the control chip 23 generates a relay control instruction and sends it to the relay 21 to control the relay 21 to disconnect and stop the output of the vehicle starting power supply 3.

[0055] In a preferred embodiment of the present invention, Figure 5 As shown, the car starting power supply 3 is powered by a lithium battery, and a plurality of lithium batteries are encapsulated in the car starting power supply 3 , then one end of the temperature probe 5 is clamped between two adjacent lithium batteries, and the other end extends out of the car starting power supply 3 .

[0056] Specifically, in this embodiment, the temperature probe 5 collects the temperature between adjacent lithium batteries in real time, and feeds back the collected temperature data to the control chip 23. The control chip 23 compares the real-time temperature data with a preset temperature threshold. When the real-time temperature data exceeds the temperature threshold, the control chip 23 generates a relay control instruction and sends it to the relay 21 to control the relay 21 to disconnect and stop the output of the vehicle starting power supply 3.

[0057] In a preferred embodiment of the present invention, Figure 2 As shown, the smart clip 1 is a positive output clip connected to the positive input terminal of the car battery 2 and a negative output clip connected to the negative input terminal of the car battery 2;

[0058] The reverse connection protection circuit 221 includes:

[0059] An operational amplifier U1, wherein the output end of the operational amplifier U1 is connected to the cathode of a first diode D1, the anode of the first diode D1 is connected to the relay 21, and the output end of the operational amplifier U1 is also connected to the control chip 23 via a first resistor R1;

[0060] The non-inverting input terminal of the operational amplifier U1 is respectively connected to a second resistor R2, a third resistor R3 and a fourth resistor R4, and the other end of the second resistor R4 is connected to a 5V power supply, the other end of the third resistor R3 is grounded, the other end of the fourth resistor R4 is respectively connected to a fifth resistor R5 and a cathode of a second diode D2, the other end of the fifth resistor R5 is connected to the signal line 14 of the positive output clip, and the cathode of the second diode D2 is connected to the signal line 14 of the negative output clip;

[0061] The inverting input terminal of the operational amplifier U1 is respectively connected to a sixth resistor R6 and a seventh resistor R7, the other end of the sixth resistor R6 is connected to a 5V power supply, and the other end of the seventh resistor R7 is grounded;

[0062] The positive power supply terminal of the operational amplifier U1 is connected to a 5V power supply, and the negative power supply terminal of the operational amplifier U1 is grounded.

[0063] Specifically, in this embodiment, when the signal lines 14 of the two smart clips 1 are normally connected, the signal line 14 at the positive output end is connected to the cathode of the second diode D2, and the second diode D2 is not turned on. Therefore, the positive input end of the operational amplifier U1 inputs the signal of the signal line 14 at the positive output end and flows through the fifth resistor R5 and the fourth resistor R4, and the sampling signal Reverse sign is output by the output end of the operational amplifier U1 to the control chip 23; when reverse connection occurs, the signal line 14 at the positive output end is connected to the anode of the second diode D2, and the second diode D2 is turned on. At this time, the fourth resistor R4 and the fifth resistor R5 are connected in parallel, while the fourth resistor R4 and the fifth resistor R5 are connected in series when normally connected. Therefore, the signal input to the positive input end of the operational amplifier U1 changes, and then the sampling signal Reverse sign output by the operational amplifier U1 changes and is fed back to the control chip 23. At the same time, the delay control signal Relay reverse off output by the output end of the operational amplifier U1 takes effect and is sent to the relay 21 to control the relay 21 to disconnect.

[0064] In a preferred embodiment of the present invention, the control circuit 2 further includes:

[0065] A power detection circuit 24 is connected to the control chip 23, the vehicle starting power supply 3 and the signal line 14 of the positive output clip respectively.

[0066] Specifically, in this embodiment, the control chip 23 sends a PWM signal to the input end of the power detection circuit 24. When a DC signal is received on the signal line 14 of the positive output clamp, the vehicle starting power supply 3 is valid and the conductive clip 12 is normally connected to the vehicle battery 2; when a PWM signal is received on the signal line 14 of the positive output clamp, the vehicle starting power supply 3 is invalid or the conductive clip 12 is not clamped.

[0067] In a preferred embodiment of the present invention, Figure 3 As shown, the power detection circuit 24 includes:

[0068] P-channel enhancement type MOS transistor Q2, the drain of the P-channel enhancement type MOS transistor Q2 is respectively connected to an eighth resistor R8, a cathode of a voltage stabilizing diode Q1 and a positive output terminal BAT+ of a vehicle starting power supply, the gate of the P-channel enhancement type MOS transistor Q2 is respectively connected to the other end of the eighth resistor R8 and a tenth resistor R10, the source of the P-channel enhancement type MOS transistor Q2 is respectively connected to the anode of the voltage stabilizing diode Q1 and a ninth resistor R9, the other end of the ninth resistor R9 is connected to the anode of a third diode D3, and the cathode of the third diode D3 is connected to the signal line 14 of the positive output clip;

[0069] The transistor N1, the base of the transistor N1 is respectively connected to an eleventh resistor R11 and a twelfth resistor R12, the other end of the eleventh resistor R11 is connected to the control chip 23, and the other end of the twelfth resistor R12 is grounded;

[0070] The collector of the transistor N1 is connected to the other end of the tenth resistor R10, and the emitter of the transistor N1 is grounded.

[0071] Specifically, in this embodiment, when the automobile starting power supply 3 is effective and the conductive clip 12 is normally connected to the automobile battery 2, the positive output terminal BAT+ of the automobile starting power supply outputs a power signal, which flows through the P-channel enhancement type MOS tube Q2, the ninth resistor R9 and the third diode D3 to the signal line 14 of the positive output clip, and a DC signal will be detected at the signal line 14 of the positive output clip; when the automobile starting power supply 3 is invalid or the smart clip 1 is not clamped, the voltage of the positive output terminal of the automobile starting power supply 3 cannot be sent to the signal line 14 of the positive output clip, and the PWM signal sent by the control chip 23 flows through the eleventh resistor R11, the transistor N1, the tenth resistor R10, the P-channel enhancement type MOS tube Q2, the ninth resistor R9 and the third diode D3 to the signal line 14 of the positive output clip, and a PWM signal will be detected at the signal line 14 of the positive output clip.

[0072] In a preferred embodiment of the present invention, the signal line 14 and the power line 13 are sheathed in an outer sheath.

[0073] Specifically, in this embodiment, an outer sheath is provided to protect the signal line 14 and the power line 13 from being directly subjected to external mechanical damage and chemical corrosion, thereby enhancing the mechanical strength and prolonging the service life.

[0074] In a preferred embodiment of the present invention, a display device 6 is also included, which is connected to the control chip 23. The control chip 23 respectively obtains the output results of the protection circuit 22, the output results of the temperature probe 5 and the output results of the power detection circuit 24 and sends them to the display device 6 for display.

[0075] Specifically, in this embodiment, for the reverse connection protection circuit 221, the control chip 23 can determine the occurrence of reverse connection through the signal change of an output branch of the reverse connection protection circuit 221, and can also send the reverse connection state as the output result of the reverse connection protection circuit 221 to the display device 6 for real-time display. The user can quickly and intuitively obtain the reverse connection state prompt through the display device 6 so as to take timely countermeasures.

[0076] For the overcurrent protection circuit 222, after the control chip 23 detects that the real-time current output is greater than the current threshold and determines that it is in an overcurrent state, it can also send the overcurrent state as the output result of the overcurrent protection circuit 222 to the display device 6 for real-time display. The user can quickly and intuitively obtain the overcurrent state prompt through the display device 6 so as to take timely countermeasures.

[0077] For the real-time temperature data detected by the temperature probe, the control chip 23 determines that the temperature is in an over-temperature state when it detects that the real-time temperature is greater than the temperature threshold. It can also send the over-temperature state as the output result of the temperature probe to the display device 6 for real-time display. The user can quickly and intuitively obtain the over-temperature state prompt through the display device 6 so as to take timely countermeasures.

[0078] For the power detection circuit 24, the control chip 23 sends a PWM signal, and receives the PWM signal at the output end of the smart clip to determine whether the power is invalid or the clip is not clamped. The power is invalid or the clip is not clamped as the output result of the power detection circuit 24 is sent to the display device 6 for real-time display. The user can quickly and intuitively obtain the power invalid or clip not clamped status prompt through the display device 6, so as to take timely countermeasures.

[0079] As a preferred embodiment, the control chip 23 is also provided with a storage module for storing pre-generated operation step prompts corresponding to the reverse connection state, overcurrent state, overtemperature state, power failure or clamp unclamped state. When the control chip 23 detects the reverse connection state, overcurrent state, overtemperature state, power failure or clamp unclamped state, it is preferred to call the corresponding operation step prompts and send them to the display device 6 for display, and the user can take corresponding countermeasures according to the operation step prompts. More preferably, the display device 6 is also provided with a voice playback module, through which the voice playback module can provide the user with the above-mentioned reverse connection state, overcurrent state, overtemperature state, power failure or clamp unclamped state prompts and / or corresponding operation step prompts by voice playback.

[0080] In a preferred embodiment of the present invention, the control chip 23 is a single chip microcomputer chip.

[0081] Specifically, in this embodiment, the single-chip microcomputer chip has the advantages of small size, low power consumption, strong control function, flexible expansion, miniaturization and easy use. By using the single-chip microcomputer chip, low-power consumption control of internal circuits is achieved in a smaller space.

[0082] In a preferred embodiment of the present invention, a first circuit board is provided inside the insulating clamp, and the control circuit 2 is integrated on the first circuit board; or

[0083] A second circuit board is disposed outside the insulating clamp, and the control circuit 2 is integrated on the second circuit board.

[0084] Specifically, in this embodiment, the control circuit 2 can be integrated on a first circuit board inside the insulating clamp, or integrated on a second circuit board outside the insulating clamp. The integrated installation can be selected according to the use environment, which is more flexible and convenient.

[0085] The above are only preferred embodiments of the present invention, and are not intended to limit the implementation methods and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the contents of this specification and illustrations should be included in the protection scope of the present invention.

Claims

1. A vehicle starting device, characterized in that: Specifically include: Two smart clips are connected to the positive input terminal and the negative input terminal of the car battery respectively. A conductive clip is provided on the inner side of the two insulating clip bodies of each smart clip respectively, and the two conductive clips are connected to a power line and a signal line respectively. A control circuit is connected to the two smart clips and a car starting power supply, respectively. The control circuit includes a relay, a protection circuit and a control chip. The input end of the protection circuit is connected to the two smart clips, respectively. The output end of the protection circuit is connected to the car starting power supply through the relay. The output end of the protection circuit is also connected to the control chip. The protection circuit comprises: A reverse connection protection circuit, wherein the input end of the reverse connection protection circuit is respectively connected to the signal lines of the two smart clips, and the output end of the reverse connection protection circuit is respectively connected to the relay and the control chip; An overcurrent protection circuit, wherein the input end of the overcurrent protection circuit is respectively connected to the power lines of the two smart clips, and the output end of the overcurrent protection circuit is respectively connected to the relay and the control chip; at least one temperature probe, one end of which is disposed inside the vehicle starting power supply, the other end of which extends out of the vehicle starting power supply, and the temperature probe is connected to the control chip; The automobile starting power supply is powered by a lithium battery, and a plurality of lithium batteries are encapsulated in the automobile starting power supply, and one end of the temperature probe is clamped between two adjacent lithium batteries, and the other end extends out of the automobile starting power supply; The two smart clips are respectively a positive output clip connected to the positive input terminal of the car battery and a negative output clip connected to the negative input terminal of the car battery; The reverse connection protection circuit comprises: An operational amplifier, wherein the output end of the operational amplifier is connected to the cathode of a first diode, the anode of the first diode is connected to the relay, and the output end of the operational amplifier is also connected to the control chip via a first resistor; The in-phase input terminal of the operational amplifier is respectively connected to a second resistor, a third resistor and a fourth resistor, and the other end of the second resistor is connected to a 5V power supply, the other end of the third resistor is grounded, the other end of the fourth resistor is respectively connected to a fifth resistor and a cathode of a second diode, the other end of the fifth resistor is connected to the signal line of the positive output clip, and the cathode of the second diode is connected to the signal line of the negative output clip; the inverting input terminal of the operational amplifier is respectively connected to a sixth resistor and a seventh resistor, the other end of the sixth resistor is connected to a 5V power supply, and the other end of the seventh resistor is grounded; The positive power supply terminal of the operational amplifier is connected to a 5V power supply, and the negative power supply terminal of the operational amplifier is grounded; The control circuit further comprises: a power detection circuit, the power detection circuit being respectively connected to the control chip, the vehicle starting power supply and the signal line of the positive output clip; The power detection circuit comprises: A P-channel enhancement type MOS transistor, wherein the drain of the P-channel enhancement type MOS transistor is respectively connected to an eighth resistor, a cathode of a voltage stabilizing diode and a positive output terminal of a vehicle starting power supply, the gate of the P-channel enhancement type MOS transistor is respectively connected to the other end of the eighth resistor and a tenth resistor, the source of the P-channel enhancement type MOS transistor is respectively connected to the anode of the voltage stabilizing diode and a ninth resistor, the other end of the ninth resistor is connected to the anode of a third diode, and the cathode of the third diode is connected to the signal line of the positive output clip; A triode, wherein the base of the triode is respectively connected to an eleventh resistor and a twelfth resistor, the other end of the eleventh resistor is connected to the control chip, and the other end of the twelfth resistor is grounded; The collector of the transistor is connected to the other end of the tenth resistor, and the emitter of the transistor is grounded.

2. The vehicle starting device according to claim 1, characterized in that: The signal line and the power line are sheathed in an outer sheath.

3. The vehicle starting device according to claim 1, characterized in that: It also includes a display device connected to the control chip. The control chip respectively obtains the output result of the protection circuit, the output result of the temperature probe and the output result of the power supply detection circuit and sends them to the display device for display.

4. The automobile starting device according to claim 1, characterized in that: The control chip is a single-chip microcomputer chip.

5. The automobile starting device according to claim 1, characterized in that: A first circuit board is disposed inside the insulating clamp, and the control circuit is integrated on the first circuit board; or A second circuit board is disposed outside the insulating clamp, and the control circuit is integrated on the second circuit board.

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