CN115596590A - Automobile starting power supply and automobile starting device - Google Patents

Automobile starting power supply and automobile starting device Download PDF

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Publication number
CN115596590A
CN115596590A CN202211193100.1A CN202211193100A CN115596590A CN 115596590 A CN115596590 A CN 115596590A CN 202211193100 A CN202211193100 A CN 202211193100A CN 115596590 A CN115596590 A CN 115596590A
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China
Prior art keywords
power supply
output
circuit
port
detection circuit
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CN202211193100.1A
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Chinese (zh)
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谢燕琳
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Individual
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Individual
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Priority to CN202211193100.1A priority Critical patent/CN115596590A/en
Publication of CN115596590A publication Critical patent/CN115596590A/en
Priority to PCT/CN2023/122021 priority patent/WO2024067696A1/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits or control means specially adapted for starting of engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits or control means specially adapted for starting of engines
    • F02N11/0862—Circuits or control means specially adapted for starting of engines characterised by the electrical power supply means, e.g. battery
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits or control means specially adapted for starting of engines
    • F02N11/087—Details of the switching means in starting circuits, e.g. relays or electronic switches
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/10—Safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/14—Starting of engines by means of electric starters with external current supply

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The invention provides an automobile starting power supply and an automobile starting device, wherein the automobile starting power supply comprises a power supply battery circuit, a load access detection circuit, a starting control circuit, a switching circuit and an output port, the power supply battery circuit comprises a power supply battery, the output port comprises an output anode port and an output cathode port, and the switching circuit comprises a switching device; the power supply battery circuit is respectively connected with the load access detection circuit and the start control circuit, and the load access detection circuit is connected with the start control circuit; the output anode port is connected with the anode of the power supply battery; the switch device is connected with the output cathode port and the cathode of the power supply battery and is used for controlling the connection of the output cathode port and the power supply battery; the output negative electrode port is connected with the input end of the load access detection circuit, and the output end of the start control circuit is connected with the input end of the load access detection circuit. The invention has the advantages of simple implementation, compact structure and the like.

Description

Automobile starting power supply and automobile starting device
Technical Field
The invention relates to the field of automobiles, in particular to an automobile starting power supply and an automobile starting device.
Background
The automobile needs the storage battery to carry out the operation of igniteing in order to start the vehicle, just can't normally ignite when the storage battery electric quantity exhausts, brings the inconvenience for going. The automobile starting power supply can be used as an emergency power supply to be connected with the storage battery to help the automobile to ignite and start when the automobile is flamed out and anchored and the storage battery cannot ignite when the electric quantity of the storage battery is exhausted.
The circuit of current automobile starting power accessible pure hardware realizes, but this type of automobile starting power often samples the circuit that the voltage of output positive pole port is used for each module, for example, the chinese utility model patent publication of publication number CN216709232U portable reserve starting drive and the reserve starting tool of a vehicle, the load of this scheme inserts and listens the module and need put the realization that realizes voltage formula load and resistance-type load through two fortune, it is structural comparatively complicated, and the device can't realize the function that the load drops from the fastener detection and relay adhesion detect, safe and reliable inadequately.
Disclosure of Invention
A first object of the present invention is to provide a vehicle starting power supply with a simpler structure.
A second object of the present invention is to provide a vehicle starting apparatus including the above vehicle starting power supply.
In order to achieve the first object, the present invention provides a vehicle starting power supply, including: the power supply battery circuit comprises a power supply battery, a load access detection circuit, a starting control circuit, a switch circuit and an output port, wherein the output port comprises an output anode port and an output cathode port, and the switch circuit comprises a switch device; the power supply battery circuit is respectively connected with the load access detection circuit and the start control circuit, and the load access detection circuit is connected with the start control circuit; the output anode port is connected with the anode of the power supply battery; the switch device is connected with the output cathode port and the cathode of the power supply battery and is used for controlling the connection of the output cathode port and the power supply battery; the output negative electrode port is connected with the input end of the load access detection circuit, and the output end of the start control circuit is connected with the input end of the load access detection circuit; the load access detection circuit is used for detecting whether a target load is accessed between the output anode port and the output cathode port, and when the target load is detected not to be accessed, the load access detection circuit prohibits the output end of the start control circuit from outputting a target electric signal for controlling the conduction of the switch device; when the load access detection circuit detects that the target load is accessed, the load access detection circuit controls the output end of the start control circuit to output a target electric signal for controlling the switch device to be conducted to the switch circuit.
According to the scheme, the load access detection module is used for sampling the voltage signal of the cathode output port, and on the basis of realizing the automobile starting power supply through pure hardware, the detection of the resistance type load and the voltage type load can be realized through one operational amplifier, so that the volume of the automobile starting power supply is simpler and more compact. In addition, the target electrical signal of the switch device is multiplexed and conducted, the target electrical signal is transmitted to the load access detection module at the same time, the output of the load access detection module is maintained, the load falling detection is realized, and the structure is more reasonable and reliable.
Further, the load access detection circuit comprises a first operational amplifier; when the load access detection module detects that a target load is accessed, the in-phase input end of the first operational amplifier acquires a first voltage signal from the output negative electrode port, the output end of the first operational amplifier outputs a second voltage signal to the starting control circuit, the starting control circuit outputs a target electric signal, and the in-phase input end of the first operational amplifier receives the target electric signal.
The automobile starting power supply comprises a short circuit reverse connection detection circuit, wherein the short circuit reverse connection detection circuit is respectively connected with a power supply battery circuit, a starting control circuit and an output port; the short circuit reverse connection detection circuit comprises a second operational amplifier; the inverting input end of the second operational amplifier receives a third voltage signal from the output positive electrode port, and the non-inverting input end of the second operational amplifier receives a fourth voltage signal from the output negative electrode port; when the output positive electrode port is in short circuit with the output negative electrode port, or the target load is reversely connected between the output positive electrode port and the output negative electrode port, the output end of the second operational amplifier outputs a fifth voltage signal to prohibit the output end of the start control circuit from outputting a target electric signal for controlling the conduction of the switch device to the switch circuit.
Therefore, the short circuit reverse connection detection circuit synchronously realizes the detection of the short circuit state and the reverse connection state of the automobile starting power supply, does not need to separate different circuits for detection respectively, directly utilizes the voltage signal of the output anode port as the bias power supply of the sampling circuit, and can save the arrangement of an additional bias power supply circuit.
The automobile starting power supply comprises an automobile battery voltage detection circuit, wherein the automobile battery voltage detection circuit is respectively connected with a power supply battery circuit, a starting control circuit and an output port; the automobile battery voltage detection circuit comprises a third operational amplifier and a fourth operational amplifier; the inverting input end of the third operational amplifier receives a sixth voltage signal from the output negative electrode port, and the non-inverting input end of the third operational amplifier receives a seventh voltage signal from the output positive electrode port; an inverting input end of the fourth operational amplifier acquires an eighth voltage signal from the power supply battery circuit, and a non-inverting input end of the fourth operational amplifier acquires a ninth voltage signal from an output end of the third operational amplifier; when the target load is an automobile battery, the automobile battery is connected between the output positive electrode port and the output negative electrode port, and the voltage of the automobile battery is larger than the first preset value, the output end of the fourth operational amplifier outputs a tenth voltage signal to prohibit the output end of the start control circuit from outputting a target electric signal for controlling the switch device to be conducted to the switch circuit.
Therefore, the voltage detection circuit of the automobile battery directly adopts the positive electrode and the negative electrode of the power battery to supply power, and the structure is simpler.
The automobile starting power supply comprises a reverse charging detection circuit, wherein the reverse charging detection circuit is respectively connected with a power supply battery circuit, a starting control circuit, an output port and an automobile battery voltage detection circuit; the reverse charging detection circuit comprises a fifth operational amplifier; a non-inverting input end of the fifth operational amplifier acquires a ninth voltage signal from an output end of the third operational amplifier, and an inverting input end of the fifth operational amplifier acquires an eleventh voltage signal from an output positive electrode port; when the target load is an automobile battery, the automobile battery is connected between the output positive electrode port and the output negative electrode port, and the difference between the voltage of the automobile battery and the voltage of the power supply battery is larger than a second preset value, the output end of the fifth operational amplifier outputs a twelfth voltage signal to prohibit the output end of the start control circuit from outputting a target electric signal for controlling the switch device to be conducted to the switch circuit.
Therefore, the anode and the cathode of the power battery are directly adopted for power supply, and the structure is simpler.
The automobile starting power supply comprises a power supply battery voltage detection circuit, wherein the power supply battery voltage detection circuit is respectively connected with a power supply battery circuit, a starting control circuit and an output port; the battery voltage detection circuit comprises a sixth operational amplifier and a voltage stabilizing source; a non-inverting input end of the sixth operational amplifier acquires a thirteenth voltage signal from the power supply battery circuit, and an inverting input end of the sixth operational amplifier acquires a fourteenth voltage signal from an output positive electrode port; a control end of the voltage-stabilizing source acquires a fifteenth voltage signal from the power supply battery circuit, and a reference end of the voltage-stabilizing source acquires a sixteenth voltage signal from an output anode port; when the voltage of the power supply battery is smaller than a third preset value, the output end of the sixth operational amplifier outputs a seventeenth voltage signal to forbid the output end of the start control circuit from outputting a target electric signal for controlling the conduction of the switching device to the switching circuit; when the voltage of the power supply battery is larger than the fourth preset value, the control end of the voltage stabilizing source outputs an eighteenth voltage signal to forbid the output end of the starting control circuit from outputting a target electric signal for controlling the conduction of the switching device to the switching circuit.
The power supply battery voltage detection circuit is connected with the switching circuit, and when the switching device is switched on, the power supply battery voltage detection circuit acquires a nineteenth voltage signal from the switching circuit and prohibits the output end of the sixth operational amplifier from outputting a seventeenth voltage signal.
Therefore, the voltage misoperation of the power supply battery can be avoided when the relay is normally closed.
The automobile starting power supply comprises a relay adhesion detection circuit, and the relay adhesion detection circuit is respectively connected with an output cathode port, a starting control circuit and a power supply battery circuit; the relay adhesion detection circuit is used for acquiring a twentieth voltage signal from the output cathode port when the load access detection circuit detects that the target load is accessed and the relay is adhered, and outputting the twenty-first voltage signal to inhibit the output end of the start control circuit from outputting a target electric signal for controlling the switch device to be conducted to the switch circuit.
Therefore, the adhesion detection of the relay can be realized, and the automobile starting power supply is protected.
The relay adhesion detection circuit comprises a first triode, wherein a base of the first triode acquires a twentieth voltage signal from an output negative electrode port, when the load access detection circuit detects that a target load is accessed and the relay is adhered, the first triode is cut off, and a collector of the first triode outputs a twenty-first voltage signal to prohibit an output end of the start control circuit from outputting a target electric signal for controlling the switch-on of the switch device to the switch circuit.
In order to achieve the second object, the invention provides an automobile starting device, which comprises a shell and a wire clamp, wherein the shell is connected with the wire clamp, and the shell is connected with the wire clamp, wherein: the shell comprises the automobile starting power supply.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of a starting power supply of an automobile according to the present invention.
Fig. 2 is a circuit schematic of the power cell circuit of the vehicle starting power supply embodiment of the present invention.
Fig. 3 is a schematic circuit diagram of the connection between the load access detection circuit and the relay adhesion detection circuit of the embodiment of the vehicle starting power supply of the present invention.
Fig. 4 is a circuit schematic diagram of a start control circuit of an embodiment of the vehicle starting power supply of the present invention.
Fig. 5 is a schematic circuit diagram of the switching circuit connecting the output port of the embodiment of the starting power supply for the automobile according to the invention.
FIG. 6 is a schematic circuit diagram of the connection among the short-circuit reverse-connection detection circuit, the reverse-charge detection circuit and the vehicle battery voltage detection circuit of the embodiment of the vehicle starting power supply of the invention.
FIG. 7 is a schematic circuit diagram of a power supply battery voltage detection circuit according to an embodiment of the present invention.
FIG. 8 is a schematic circuit diagram of a temperature detection circuit of an embodiment of the vehicle starting power supply of the present invention.
Fig. 9 is a circuit schematic of the timing circuit of the vehicle starting power supply embodiment of the present invention.
FIG. 10 is a circuit schematic of the alarm circuit of the vehicle starting power supply embodiment of the present invention.
FIG. 11 is a circuit schematic of an indicator circuit of an embodiment of the vehicle starting power supply of the present invention.
The invention is further explained with reference to the drawings and the embodiments.
Detailed Description
The load access detection module of the automobile starting power supply samples voltage signals from the negative electrode output port, so that the detection of voltage type loads and resistance type loads is synchronously realized. It should be noted that the automobile starting power supply is realized by a pure hardware circuit, and software control modes such as MCU sampling and the like are not involved.
The embodiment of the automobile starting power supply comprises:
referring to fig. 1, the vehicle starting power supply of the embodiment includes a power battery circuit 11, a load access detection circuit 12, a starting control circuit 13, a switch circuit 14, an output port, a short circuit reverse connection detection circuit 17, a vehicle battery voltage detection circuit 18, a reverse charge detection circuit 19, a power battery voltage detection circuit 20, a relay adhesion detection circuit 21, a temperature detection circuit 22, a timing circuit 23, an alarm circuit 24, and an indication circuit 25. The power supply battery circuit 11 includes a power supply battery 111 and a DC-DC circuit 112. The output ports include an output negative port 15 and an output positive port 16. The switching circuit 14 includes a switching device 141.
The power battery circuit 11 is connected to the load access detection circuit 12 and the start control circuit 13, respectively, and the load access detection circuit 12 is connected to the start control circuit 13. The output positive electrode port 16 is connected to the positive electrode of the power supply battery 111. The switching device 141 is connected to the output negative terminal port 15 for controlling the connection of the output negative terminal port 15 to the negative electrode of the battery cell 111.
The load input detection circuit 12 is configured to detect whether a target load is connected between the output positive port 16 and the output negative port 15, and when it is detected that the target load is not connected, the load input detection circuit 12 prohibits the output terminal of the start control circuit 13 from outputting a target electrical signal for controlling the switching device 141 to be turned on, so that the negative electrode of the power battery 111 cannot be correctly connected to the output negative port 15. When the load access detection circuit 12 detects the target load access, the load access detection circuit 12 controls the output terminal of the start control circuit 13 to output a target electrical signal for controlling the switch device 141 to be turned on, so that the cathode of the power battery 111 is correctly connected to the output cathode port 15, and the anode and the cathode of the power battery 111 are correctly connected to the target load. The target load of the present embodiment is an automotive battery. It will be appreciated that the target load may also be other electronic devices of the car.
The power supply battery circuit 11 is used for supplying power to a target load correctly connected between the output negative electrode port 15 and the output positive electrode port 16, and supplying power to other functional modules of the start control circuit of the present embodiment. Referring to fig. 2, the power battery circuit of the present embodiment includes a power battery J1 and a DC-DC circuit, the DC-DC circuit includes a first diode D1, a third resistor R3, a voltage stabilizing chip U1, a first capacitor C1, an eighteenth capacitor C18, a fourth capacitor C4, a second capacitor C2, and a third capacitor C3, a voltage VDD and a voltage V + are used for providing voltages (such as operational amplifiers of the respective functional modules) to other functional modules of the start control circuit of the present embodiment, VIN1 is connected to the positive output port, and GND1 is connected to the negative output port.
Referring to fig. 3, the load access detection circuit 13 includes a first operational amplifier IC2A, a thirtieth resistor R30, a thirty-second resistor R32, a thirty-third resistor R33, a thirty-eighth resistor R38, a nineteenth diode D19, a twenty-first diode D21, and a ninth capacitor C9.
Referring to fig. 4, the start control circuit includes a fifty-sixth resistor R56, a fifty-eighth resistor R58, a fifty-ninth resistor R59, a sixteenth resistor R90, a sixteenth resistor R67, an NE555 timer IC4, a twenty-eighth diode D28, a twenty-ninth diode D29, a fifteenth transistor Q15, a thirteenth capacitor C13, a fourteenth capacitor C14, and a seventeenth capacitor C17.
Referring to fig. 5, the switching circuit includes a tenth resistor R10, an eleventh resistor R11, a third transistor Q3, a fifth diode D5, and a relay K1, where the relay K1 is connected to the output cathode port P2 and the ground terminal as a switching device. The output positive electrode port P1 is connected with the positive electrode of the power supply battery. It will be appreciated that the switching device may also be a field effect transistor or the like.
Therefore, resistance load detection and voltage type load detection are realized without different operational amplifiers, when a resistance type load is connected between an output positive electrode port P1 and an output negative electrode port P2 (for example, when no automobile battery is connected, electronic equipment of an automobile connected between the output positive electrode port and the output negative electrode port is equivalent to a resistor, for example, an automobile battery with zero voltage) or a voltage type load (for example, an automobile battery with non-zero voltage) is connected, a non-inverting input end of a first operational amplifier IC2A of the load connection detection circuit receives a first voltage signal from the output negative electrode port P2, so that the voltage of the non-inverting input end of the first operational amplifier IC2A is larger than the voltage of the inverting input end of the first operational amplifier IC2A, the level of an output end of the first operational amplifier IC2A is inverted from low level to high level, namely, a second voltage signal is output to a starting control circuit, a fifteenth transistor Q15 of the starting control circuit is conducted, a ninth resistor, a sixteenth resistor, a thirteenth capacitor C13 starts to start oscillation circuit, an NE555, a third capacitor C3 outputs a power supply signal, a power supply signal is output to a target power supply signal, a target power supply signal of a target battery, and a target battery is output to a target battery, and a target battery switch K1 and a target battery is connected to a target battery. After the relay K1 is attracted, the output end of the starting control circuit is connected with the input end of the load access detection circuit, and the high level output of the first operational amplifier IC2A is maintained by the target electric signal. During the duration of the square wave signal, when the output of the pin 3 of the NE555 timer IC4 is converted from a high level to a low level, the third triode Q3 is turned off, after the relay K1 is turned off for the duration of the low level, if the load access detection circuit does not detect that the voltage type load or the resistance type load is accessed at this time, that is, the non-inverting input terminal of the first operational amplifier IC2A cannot receive the first voltage signal from the output negative electrode port P2, at this time, the first operational amplifier IC2A outputs the low level, so that the fifteenth triode Q15 is turned off, the twenty-ninth diode D29 is turned on in the forward direction, the oscillation circuit stops oscillating, the pin 3 of the NE555 timer IC4 outputs the low level, the third triode Q3 is turned off, and the relay K1 is not closed any more, thereby realizing the function of detecting whether the accessed voltage type load or resistance type load falls off from between the output positive electrode port P1 and the output negative electrode port P2, and turning off the relay K1 in time when the fall off occurs.
With reference to fig. 3, the relay adhesion detection circuit 21 is connected to the output negative terminal port, the start control circuit, and the power battery circuit, respectively. The relay adhesion detection circuit 21 is configured to obtain a twentieth voltage signal from the output negative terminal port when the load access detection circuit 13 detects that the load is accessed and the relay is adhered, and output the twenty-first voltage signal to prohibit the output terminal of the start control circuit from outputting a target electrical signal for controlling the relay to be turned on to the switch circuit. As an alternative embodiment, the relay adhesion detection circuit 21 includes a first triode Q14, a sixty-fourth resistor R64, a twelfth capacitor C12, a sixty-first resistor R61, a twenty-fifth diode D25, a thirteenth triode Q13, a twenty-sixth diode D26, a twenty-seventh diode D27, a sixty-sixth resistor R66, and a sixteenth capacitor 104. When the load access detection circuit 13 detects that the load is accessed and the relay is adhered, the first triode Q13 obtains a first voltage signal from the output negative electrode port and cuts off, and the collector of the first triode Q13 outputs a voltage signal with twenty-one low voltage to prohibit the output end of the start control circuit from outputting a target electric signal for controlling the conduction of the relay K1 to the switch circuit. Even if the automobile battery is connected between the output anode port and the output cathode port, the target electric signal for controlling the switch device to be conducted is not output to the switch circuit by controlling the output end of the starting control circuit.
The short circuit reverse connection detection circuit is respectively connected with the power supply battery circuit, the starting control circuit and the output port. Referring to fig. 6, the short-circuit reverse connection detection circuit includes a seventeenth resistor R72, a forty-third resistor R43, a thirty-sixth resistor R36, a second operational amplifier IC2B, a twenty-first capacitor 21, a seventeenth diode D17, a sixteenth resistor R62, a fourth resistor R4, a fifth resistor R5, a sixteenth triode Q16, a sixth resistor R6, a first field-effect transistor Q1, a first resistor R1, and a second resistor R2. The inverting input end of the second operational amplifier IC2B receives a third voltage signal from the output positive electrode port, the non-inverting input end of the second operational amplifier IC2B receives a fourth voltage signal from the output negative electrode port, when the output positive electrode port is in short circuit with the output negative electrode port, or when the automobile battery is reversely connected between the output positive electrode port and the output negative electrode port, the output end of the second operational amplifier IC2B outputs a fifth voltage signal to enable the twelfth triode Q13 to be conducted, and further the output end of the starting control circuit is forbidden to output a target electric signal for controlling the conduction of the relay K1 to the switch circuit. Even if the automobile battery is connected between the output anode port and the output cathode port, the target electric signal for controlling the switch device to be conducted is not output to the switch circuit by controlling the output end of the starting control circuit.
The automobile battery voltage detection circuit is respectively connected with the power supply battery circuit, the starting control circuit and the output port. Referring to fig. 6, the vehicle battery voltage detection circuit includes a third operational amplifier IC3C, a fourth operational amplifier IC3D, a forty-sixth resistor R46, a forty-seventh resistor R47, a forty-fifth resistor R45, a thirty-fifth resistor R35, a twentieth capacitor C20, a sixty-ninth resistor R69, a seventy resistor R70, a fifty resistor R50, a twenty-ninth resistor R29, a fifty-third resistor R53, a first voltage regulator ZD1, an eleventh diode D11, and a twenty-third diode D23. The inverting input end of the third operational amplifier IC3C receives the sixth voltage signal from the output negative terminal port, the non-inverting input end of the third operational amplifier IC3C receives the seventh voltage signal from the output positive terminal port, and the sixth voltage signal and the seventh voltage signal are subjected to differential amplification to obtain a fixed ninth voltage signal. The inverting input terminal of the fourth operational amplifier IC3D obtains the eighth voltage signal from the power supply battery circuit, and the non-inverting input terminal obtains the ninth voltage signal from the output terminal of the third operational amplifier IC 3C. The value of the eighth voltage signal can be adjusted and set to be a first preset value, the first preset value represents the maximum threshold value allowed by the voltage of the automobile battery, the fourth operational amplifier IC3D compares the eighth voltage signal with the ninth voltage signal, when the ninth voltage signal is greater than the first preset value, the output end of the fourth operational amplifier IC3D outputs a tenth high-level voltage signal, the tenth voltage signal enables the twelfth triode Q12 to be conducted, and then the output end of the starting control circuit is forbidden to output a target electric signal for controlling the conduction of the relay K1 to the switch circuit. Even if the automobile battery is connected between the output anode port and the output cathode port, the target electric signal for controlling the switch device to be conducted is not output to the switch circuit by controlling the output end of the starting control circuit to output. Because the reverse charging detection circuit directly adopts the positive and negative electrodes of the power supply battery to supply power, the structure is simpler, and the loss of the DC-DC circuit is reduced.
The reverse charging detection circuit is respectively connected with the power supply battery circuit, the starting control circuit, the output port and the automobile battery voltage detection circuit. Referring to fig. 6, the reverse charge detection circuit includes a fifth operational amplifier IC3A, a fifty-fifth resistor R55, a fifty-seventh resistor R57, a twenty-second diode D22, a sixty-third resistor R63, and a sixty-fifth resistor R65. The in-phase input end of the fifth operational amplifier IC3A obtains a ninth voltage signal from the output end of the third operational amplifier, the inverting input end of the fifth operational amplifier IC3A obtains an eleventh voltage signal from the output positive electrode port, the value of the eleventh voltage signal can also be adjusted and set to a second preset value, the second preset value is used for representing the voltage of the power battery, the fifth operational amplifier IC3A compares the ninth voltage signal with the eleventh voltage signal, and when the automobile battery is connected between the output positive electrode port and the output negative electrode port and the voltage of the automobile battery is greater than the voltage of the power battery, the output end of the fifth operational amplifier IC3A outputs a twelfth voltage signal to enable the twelfth triode Q12 to be conducted, so that the output end of the start control circuit is prohibited from outputting a target electrical signal for controlling the conduction of the relay K1 to the switch circuit. Even if the automobile battery is connected between the output positive electrode port and the output negative electrode port, the target electric signal for controlling the switch device to be conducted is not output to the switch circuit by controlling the output end of the starting control circuit. Because the reverse charging detection circuit directly adopts the positive and negative poles of the power battery to supply power, the structure is simpler, and the loss of the DC-DC circuit is reduced.
The power supply battery voltage detection circuit is respectively connected with the power supply energy battery circuit, the starting control circuit and the output port. Referring to fig. 7, the battery voltage detection circuit includes a sixth operational amplifier IC2C, a voltage regulator IC1, a fourth triode Q4, a seventh resistor R7, a fifteenth resistor D15, a sixth capacitor C6, a twenty-fifth resistor R25, a fifteenth diode D15, a twenty-third resistor R23, a seventeenth resistor R17, a thirteenth resistor R13, a twenty-fourth resistor R24, a twelfth resistor R12, a twenty-sixth resistor R26, a third diode D3, a twelfth diode D10, and a ninth diode D9.
The in-phase input end of the sixth operational amplifier IC2C obtains a thirteenth voltage signal from the power supply battery circuit, the inverting input end of the sixth operational amplifier IC2C obtains a fourteenth voltage signal from the output positive terminal port, the sixth operational amplifier IC2C compares the thirteenth voltage signal with the fourteenth voltage signal, when the voltage of the power supply battery is smaller than a third preset value, the third preset value represents the minimum threshold value of the voltage of the power supply battery, the output end of the sixth operational amplifier IC2C outputs a seventeenth voltage signal of a high level to turn on the twelfth triode Q12, and further the output end of the start control circuit is prohibited from outputting a target electrical signal for controlling the conduction of the relay K1 to the switch circuit. Even if the automobile battery is connected between the output positive electrode port and the output negative electrode port, the target electric signal for controlling the switch device to be conducted is not output to the switch circuit by controlling the output end of the starting control circuit.
The control end of the voltage-stabilizing source IC1 acquires a fifteenth voltage signal from the power supply battery circuit, the reference end ref of the voltage-stabilizing source IC1 acquires a sixteenth voltage signal from the output positive electrode port, when the voltage of the power supply battery is greater than a fourth preset value, the fourth preset value represents the maximum threshold value of the voltage of the power supply battery, the control end K of the voltage-stabilizing source IC1 outputs a low level to enable the fourth triode Q4 to be conducted, the output end of the voltage-stabilizing source IC1 outputs a seventeenth voltage signal of a high level to enable the twelfth triode Q12 to be conducted, the twelfth triode Q12 is further conducted, and the output end of the starting control circuit is forbidden to output a target electric signal for controlling the conduction of the relay K1 to the switching circuit. Even if the automobile battery is connected between the output positive electrode port and the output negative electrode port, the target electric signal for controlling the switch device to be conducted is not output to the switch circuit by controlling the output end of the starting control circuit.
The battery voltage detection circuit is also connected with the switch circuit, and when the switch device is switched on, the battery voltage detection circuit acquires a nineteenth voltage signal, namely a UVP signal, from the switch circuit, so that the output of the output end of the sixth operational amplifier is reduced, and when the relay K1 is normally switched on, the low-voltage protection function of the power supply battery is forbidden, and the situation that the normal ignition cannot be realized due to the fact that the voltage of the power supply battery is too low in the ignition operation process is prevented.
Referring to fig. 8, the temperature detecting circuit includes a seventh operational amplifier IC2D, a sixteenth resistor R16, a twenty seventh resistor R27, an eighteenth resistor R18, an eighth resistor R8, a nineteenth resistor R19, a twenty first resistor R21, a temperature sensor NTC1, an eighth diode D8, a sixth diode D6, a thirteenth diode D13, a second transistor Q2, a fifth transistor Q5, a fifth capacitor C5, and a seventh capacitor C7, when the temperature sensor detects that the temperature of the NTC1 is too high, the voltage at the inverting input terminal of the seventh operational amplifier IC2D becomes low, the output terminal of the seventh operational amplifier IC2D outputs a high level, the twelfth transistor Q12 is turned on through the eighth diode D8, and the output terminal of the start control circuit is prohibited from outputting a target electrical signal for controlling the turn-on of the relay K1 to the switch circuit. Even if the automobile battery is connected between the output positive electrode port and the output negative electrode port, the target electric signal for controlling the switch device to be conducted is not output to the switch circuit by controlling the output end of the starting control circuit.
Referring to fig. 9, the timing circuit includes an eighth operational amplifier IC2B, a fifty-second resistor R52, a seventy-first resistor R71, a twentieth resistor R20, an eighth capacitor C8, a nineteenth capacitor C19, a fourteenth diode D14, a twentieth diode D20, a seventh diode D7, and a twelfth diode D12, when the load detection circuit detects that the car battery is connected, the inverting input terminal of the eighth operational amplifier IC2B charges the eighth capacitor C8, and when the voltage of the inverting input terminal is higher than the non-inverting input terminal, the output terminal of the eighth operational amplifier IC2B outputs a low level voltage to the start control module, thereby prohibiting the output terminal of the start control circuit from outputting the target electrical signal for controlling the relay K1 to be turned on to the switch circuit. Thereby, it is achieved that the power supply to the car battery can be automatically disconnected.
Referring to fig. 10, the alarm circuit includes a ninth resistor R9, a buzzer BZ1, a fourth diode D4, a sixth triode Q6 and a seventeenth triode Q17, and when the starting power supply of the automobile has error conditions such as reverse connection, short circuit, reverse charging, and over-high temperature, the sixth triode Q6 obtains a high level signal to enable the sixth triode Q6 to be conducted, so that the buzzer BZ1 gives an alarm to remind the user of paying attention.
Referring to fig. 11, the display circuit includes a first LED lamp LED1, a forty-first resistor R40, a second LED lamp LED2, a forty-first resistor R41, a thirty-ninth resistor R39, a forty-second resistor R42, an eighteenth resistor R48, a thirty-eleventh resistor R31, a thirty-fourth resistor R34, a fifty-first resistor R41, an eighth transistor Q8, a ninth transistor Q9, a thirteenth diode Q10, an eleventh transistor Q11, an eighteenth diode D18, a twenty-fourth diode D24, a thirty-first diode D31, a tenth capacitor C10, and an eleventh capacitor C11, and when there are error conditions such as reverse connection, short connection, reverse charging, and over-temperature in the car starting power supply, the stop signal is a high level signal, the base of the ninth transistor Q9 is cut off, the eighth transistor Q8 and the thirteenth diode Q10 are turned on, and the first LED lamp LED1 is turned on. When the relay K1 is normally attracted, the triode of the eleventh triode Q11 is in a high level, the eighth triode Q8 is cut off, the eighth triode Q8 is conducted with the eleventh triode Q11, and the second LED lamp LED2 is lightened.
Automobile starting device embodiment:
the automobile starting device of this embodiment includes casing and fastener, casing connection fastener, including automobile starting power supply embodiment in the casing automobile starting power supply, in the in-service use process, carries out the operation of striking sparks with the fastener centre gripping at the two poles of the earth of automobile battery.
In summary, the load access detection module samples the voltage signal of the cathode output port, so that the detection of the resistive load and the voltage type load can be realized simultaneously through one operational amplifier, and on the basis of realizing the automobile starting power supply by adopting pure hardware, the volume of the invention is simpler and more compact, the target electric signal of the conducting switch device is multiplexed and transmitted to the load access detection module synchronously, the output of the load access detection module is maintained, and the structure is more reasonable and reliable. The invention also provides an automobile starting device comprising the automobile starting power supply.

Claims (10)

1. A vehicle starting power supply, comprising:
the power supply comprises a power supply battery circuit, a load access detection circuit, a start control circuit, a switch circuit and an output port, wherein the power supply battery circuit comprises a power supply battery, the output port comprises an output anode port and an output cathode port, and the switch circuit comprises a switch device;
the power supply battery circuit is respectively connected with the load access detection circuit and the start control circuit, and the load access detection circuit is connected with the start control circuit;
the output positive electrode port is connected with the positive electrode of the power supply battery; the switch device is connected with the output cathode port and the cathode of the power supply battery, and is used for controlling the connection of the output cathode port and the power supply battery;
the output negative electrode port is connected with the input end of the load access detection circuit, and the output end of the start control circuit is connected with the input end of the load access detection circuit;
the load access detection circuit is used for detecting whether a target load is accessed between the output anode port and the output cathode port, and when the target load is detected to be not accessed, the load access detection circuit prohibits the output end of the start control circuit from outputting a target electric signal for controlling the switch device to be conducted; when the load access detection circuit detects that the target load is accessed, the load access detection circuit controls the output end of the starting control circuit to output a target electric signal for controlling the switch device to be conducted to the switch circuit.
2. The vehicle starting power supply of claim 1, wherein:
the load access detection circuit comprises a first operational amplifier;
when the load access detection module detects that the target load is accessed, the in-phase input end of the first operational amplifier acquires a first voltage signal from the output negative port, the output end of the first operational amplifier outputs a second voltage signal to the start control circuit, the start control circuit outputs the target electric signal, and the in-phase input end of the first operational amplifier receives the target electric signal.
3. The vehicle starting power supply of claim 1, wherein:
the automobile starting power supply comprises a short circuit reverse connection detection circuit, wherein the short circuit reverse connection detection circuit is respectively connected with the power supply battery circuit, the starting control circuit and the output port; the short circuit reverse connection detection circuit comprises a second operational amplifier;
the inverting input end of the second operational amplifier receives a third voltage signal from the output positive electrode port, and the non-inverting input end of the second operational amplifier receives a fourth voltage signal from the output negative electrode port; when the output positive electrode port is in short circuit with the output negative electrode port, or the target load is reversely connected between the output positive electrode port and the output negative electrode port, the output end of the second operational amplifier outputs a fifth voltage signal to prohibit the output end of the start control circuit from outputting a target electric signal for controlling the switch device to be conducted to the switch circuit.
4. The vehicle starting power supply of claim 1, wherein:
the automobile starting power supply comprises an automobile battery voltage detection circuit, wherein the automobile battery voltage detection circuit is respectively connected with the power supply battery circuit, the starting control circuit and the output port; the automobile battery voltage detection circuit comprises a third operational amplifier and a fourth operational amplifier;
the negative-phase input end of the third operational amplifier receives a sixth voltage signal from the output negative electrode port, and the non-positive-phase input end of the third operational amplifier receives a seventh voltage signal from the output positive electrode port;
an inverting input end of the fourth operational amplifier acquires an eighth voltage signal from the power supply battery circuit, and a non-inverting input end of the fourth operational amplifier acquires a ninth voltage signal from an output end of the third operational amplifier;
when the target load is an automobile battery, the automobile battery is connected between the output positive electrode port and the output negative electrode port, and the voltage of the automobile battery is larger than a first preset value, the output end of the fourth operational amplifier outputs a tenth voltage signal to prohibit the output end of the start control circuit from outputting a target electric signal for controlling the switch device to be switched on to the switch circuit.
5. The vehicle starting power supply of claim 4, wherein:
the automobile starting power supply comprises a reverse charging detection circuit, wherein the reverse charging detection circuit is respectively connected with the power supply battery circuit, the starting control circuit, the output port and the automobile battery voltage detection circuit; the reverse charging detection circuit comprises a fifth operational amplifier;
a non-inverting input terminal of the fifth operational amplifier obtains the ninth voltage signal from an output terminal of the third operational amplifier, and an inverting input terminal of the fifth operational amplifier obtains an eleventh voltage signal from the output positive terminal;
when the target load is an automobile battery, the automobile battery is connected between the output positive electrode port and the output negative electrode port, and the difference between the voltage of the automobile battery and the voltage of the power supply battery is larger than a second preset value, the output end of the fifth operational amplifier outputs a twelfth voltage signal to prohibit the output end of the start control circuit from outputting a target electric signal for controlling the switch device to be switched on to the switch circuit.
6. The vehicle starting power supply of claim 1, wherein:
the automobile starting power supply comprises a power supply battery voltage detection circuit, wherein the power supply battery voltage detection circuit is respectively connected with the power supply battery circuit, the starting control circuit and the output port; the battery voltage detection circuit comprises a sixth operational amplifier and a voltage stabilizing source;
a non-inverting input terminal of the sixth operational amplifier obtains a thirteenth voltage signal from the power supply battery circuit, and an inverting input terminal of the sixth operational amplifier obtains a fourteenth voltage signal from the output positive terminal; a control end of the voltage stabilizing source acquires a fifteenth voltage signal from the power supply battery circuit, and a reference end of the voltage stabilizing source acquires a sixteenth voltage signal from the output anode port;
when the voltage of the power supply battery is smaller than a third preset value, the output end of the sixth operational amplifier outputs a seventeenth voltage signal to prohibit the output end of the start control circuit from outputting a target electric signal for controlling the switch-on of the switch device to the switch circuit;
when the voltage of the power supply battery is larger than a fourth preset value, the control end of the voltage stabilizing source outputs an eighteenth voltage signal to prohibit the output end of the starting control circuit from outputting a target electric signal for controlling the switch-on of the switch device to the switch circuit.
7. The vehicle starting power supply of claim 6, wherein:
the power supply battery voltage detection circuit is connected with the switching circuit, and when the switching device is switched on, the power supply battery voltage detection circuit acquires a nineteenth voltage signal from the switching circuit and prohibits the output end of the sixth operational amplifier from outputting the seventeenth voltage signal.
8. The vehicle starting power supply of claim 1, wherein:
the switch device is a relay, the automobile starting power supply comprises a relay adhesion detection circuit, and the relay adhesion detection circuit is respectively connected with the output cathode port, the starting control circuit and the power supply battery circuit;
the relay adhesion detection circuit is used for acquiring a twentieth voltage signal from the output negative electrode port when the load access detection circuit detects that the target load is accessed and the relay is adhered, and outputting the twenty-first voltage signal to prohibit the output end of the start control circuit from outputting a target electric signal for controlling the switch device to be switched on to the switch circuit.
9. The vehicle starting power supply of claim 8, wherein:
the relay adhesion detection circuit comprises a first triode, the base of the first triode is used for acquiring the twentieth voltage signal from the output negative electrode port, when the load access detection circuit detects that the target load is accessed and the relay is adhered, the first triode is stopped, the collector of the first triode outputs the twenty-first voltage signal to prohibit the output end of the starting control circuit from outputting the target electric signal for controlling the switch device to be switched on to the switch circuit.
10. The utility model provides an automobile starting device, includes casing and fastener, the casing is connected the fastener, its characterized in that:
the vehicle starting power supply of any one of claims 1 to 9 is included in the housing.
CN202211193100.1A 2022-09-28 2022-09-28 Automobile starting power supply and automobile starting device Pending CN115596590A (en)

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PCT/CN2023/122021 WO2024067696A1 (en) 2022-09-28 2023-09-27 Automobile startup power source and automobile startup apparatus

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US20230053161A1 (en) * 2021-08-11 2023-02-16 Guangdong Boltpower Energy Co., Ltd. Portable standby starting device and standby starting tool for vehicle
WO2024067696A1 (en) * 2022-09-28 2024-04-04 谢燕琳 Automobile startup power source and automobile startup apparatus

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CN206602389U (en) * 2017-03-28 2017-10-31 深圳市威斯特浦科技有限公司 A kind of intelligent controlling device of automotive ignition power supply
JP2021145446A (en) * 2020-03-11 2021-09-24 本田技研工業株式会社 Power supply control device and mobile
CN112366787A (en) * 2020-11-19 2021-02-12 深圳市华思旭科技有限公司 Intelligent connecting device, starting power supply and storage battery clamp
CN112366791A (en) * 2020-11-19 2021-02-12 深圳市华思旭科技有限公司 Intelligent connecting device, starting power supply and storage battery clamp
CN216709232U (en) * 2021-08-11 2022-06-10 广东电将军能源有限公司 Portable standby starting device and standby starting tool for vehicle
CN115596590A (en) * 2022-09-28 2023-01-13 谢燕琳（Cn） Automobile starting power supply and automobile starting device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230053161A1 (en) * 2021-08-11 2023-02-16 Guangdong Boltpower Energy Co., Ltd. Portable standby starting device and standby starting tool for vehicle
US11971003B2 (en) * 2021-08-11 2024-04-30 Guangdong Boltpower Energy Co., Ltd. Portable standby starting device and standby starting tool for vehicle
WO2024067696A1 (en) * 2022-09-28 2024-04-04 谢燕琳 Automobile startup power source and automobile startup apparatus

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