CN213279188U - Portable emergency starting power supply with high safety - Google Patents
Portable emergency starting power supply with high safety Download PDFInfo
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- CN213279188U CN213279188U CN202021324294.0U CN202021324294U CN213279188U CN 213279188 U CN213279188 U CN 213279188U CN 202021324294 U CN202021324294 U CN 202021324294U CN 213279188 U CN213279188 U CN 213279188U
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Abstract
A high-safety portable emergency starting power supply is used for emergency starting of an automobile and comprises an internal core battery, an output clamp, a whole machine system power supply switch control circuit, an electronic switch, a loading current detection module, a single chip microcomputer control module and an output clamp signal detection and identification module; the electronic switch is connected between the internal core battery and the output clamp, the whole machine system power supply switch control circuit is connected between the single chip microcomputer control module and the internal core battery, the output clamp falling signal detection and identification module is connected between the single chip microcomputer control module and the output clamp, and the single chip microcomputer control module is connected with the electronic switch; the singlechip control module detects that the output clamp is disconnected with the automobile according to the output clamp signal detection and identification module, and controls the electronic switch to be turned off. The utility model discloses a portable emergent starting power supply of high security has avoided the safety risk that output clip and car disconnection cause the short circuit when emergent starting power supply switches on.
Description
Technical Field
The utility model belongs to the power field, concretely relates to portable emergent starting power of high security.
Background
The automobile emergency starting power supply is a multifunctional portable mobile power supply, can start an automobile when the automobile is powered down or cannot be started due to other reasons, and is one of necessary products for outdoor travel by combining functions of an inflator pump, an emergency power supply, outdoor illumination and the like. The design concept of the automobile emergency starting power supply is easy to operate and convenient to carry, and can deal with various emergency situations.
At present, an emergency starting power supply on the market is connected with the positive electrode and the negative electrode of an automobile through an output clamp to charge the automobile, after the emergency starting power supply is started, if a switch of the emergency starting power supply is not closed, the output clamp is directly taken away, the emergency starting power supply is still in a conducting state, the output clamp is still electrified at the moment, the output clamp is short-circuited to generate an uncontrollable risk, for example, short circuit caused by the short circuit of the output clamp is ignited, an internal battery is damaged, explosion occurs, parts such as a whole machine shell, a wire clamp and a switch are heated to cause burnout due to short circuit, and fire disasters are seriously caused.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model aims at providing a portable emergency starting power supply with high safety. In order to realize the purpose, the utility model discloses a technical scheme as follows:
the utility model provides a portable emergent starting power of high security for the emergent of car starts, fall clip signal detection identification module including inside core battery, output clip, whole quick-witted system power supply switch control circuit, electronic switch, loading current detection module, single chip microcomputer control module and output, wherein:
the electronic switch is connected between the internal core battery and the output clip;
the whole machine system power supply switch control circuit is connected between the single chip microcomputer control module and the internal core battery and is used for controlling the high-safety portable emergency starting power supply to be started and closed;
the output clip signal detection and identification module is connected between the single-chip microcomputer control module and the output clip and used for detecting whether the output clip is disconnected with the automobile or not;
the single chip microcomputer control module is connected with the electronic switch;
and the singlechip control module controls the electronic switch to be switched off when the output clip signal detection and identification module detects that the output clip is disconnected with the automobile.
Preferably, the loading current detection module is respectively connected to the internal core battery and the output clip, and is configured to detect whether the high-safety portable emergency starting power supply is started;
the loading current detection module is connected with the single-chip microcomputer control module, when the loading current detection module detects that the high-safety portable emergency starting power supply is started, a starting signal is output to the single-chip microcomputer control module, and the single-chip microcomputer control module controls the electronic switch to be switched on according to the starting signal.
Preferably, when the output clip signal detection and identification module detects that the output clip is disconnected from the automobile, an output clip state signal is sent to the single-chip microcomputer control module, and the single-chip microcomputer control module controls the electronic switch to be turned off according to the output clip state signal.
Preferably, the output clamp signal detection and identification module comprises a voltage comparison circuit, the voltage comparison circuit comprises a first operational amplifier, an input end of the first operational amplifier is connected with the output clamp, and an output end of the first operational amplifier is connected with the single-chip microcomputer control module;
the output clamp inputs a voltage signal to an input end of the first operational amplifier; the output end of the first operational amplifier outputs an output clamp state signal to the single-chip microcomputer control module according to the voltage signal, and the single-chip microcomputer control module outputs a turn-off signal to the electronic switch according to the output clamp state signal.
Preferably, the load current detection module comprises an operational amplifier circuit, the operational amplifier circuit comprises a second operational amplifier, one input end of the second operational amplifier is connected with the negative electrode of the output clamp, the other input end of the second operational amplifier is connected with the negative electrode of the internal core battery, and the output end of the second operational amplifier is connected with the single chip microcomputer control module; the negative electrode of the output clamp inputs a potential signal to the input end of the second operational amplifier, the output end of the second operational amplifier outputs a starting signal to the single-chip microcomputer control module according to the potential signal, and the single-chip microcomputer control module outputs a conducting signal to the electronic switch according to the starting signal to enable the electronic switch to be conducted.
Preferably, the electronic switch comprises two groups of back-to-back MOS, the two groups of MOS are connected between the internal core battery and the output clamp, the two groups of MOS are connected with the single chip microcomputer control module, and the two groups of MOS receive a turn-on signal or a turn-off signal of the single chip microcomputer control module to control the turn-on or the turn-off of the output clamp and the internal core battery.
Preferably, the electronic switch further comprises a turn-on and turn-off quick response circuit, the turn-on and turn-off quick response circuit is connected with the two groups of MOS, and the turn-on and turn-off quick response circuit controls the two groups of MOS to be safely switched between a turn-on state and a turn-off state.
Preferably, the power supply switch control circuit of the whole machine system comprises a switch, the switch is connected with the single-chip microcomputer control module, the power supply switch control circuit of the whole machine system sends switch state information to the single-chip microcomputer control module, the single-chip microcomputer control module returns power supply control information to the power supply switch control circuit of the whole machine system according to the switch state information, and the power supply switch control circuit of the whole machine system controls the high-safety portable emergency starting power supply to be started or closed according to the power supply control information.
Preferably, the power supply switch control circuit of the whole system comprises a triode, the triode is connected with the single-chip microcomputer control module, and the power supply switch control circuit of the whole system controls the on and off of the triode according to the power supply control information;
when the triode is conducted, the high-safety portable emergency starting power supply is started, and when the triode is turned off, the high-safety portable emergency starting power supply is turned off.
Preferably, the high-safety portable emergency starting power supply further comprises a trigger signal output module, the trigger signal output module is connected between the single-chip microcomputer control module and the electronic switch, and the single-chip microcomputer control module controls the electronic switch to be switched on or switched off through the trigger signal output module.
The utility model discloses a portable emergent starting power of high security is starting the back, under the condition that does not close switch, can automatic identification output clip and car disconnection to turn-off output connection has avoided the safe risk that causes the short circuit of output clip and car disconnection under the state that emergent starting power started, guarantees emergent starting power normal loading output work through loading current detection module simultaneously.
Drawings
Various aspects of the present invention will become more apparent to the reader after reading the detailed description of the invention with reference to the attached drawings. Wherein:
fig. 1 is a schematic diagram of a high-safety portable emergency starting power supply functional module according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of an electronic switch according to an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of a loading current detection module according to an embodiment of the present invention;
fig. 4 is a schematic circuit diagram of a single chip microcomputer control module according to an embodiment of the present invention;
fig. 5 is a schematic circuit diagram of the clip signal detection and identification module according to an embodiment of the present invention;
fig. 6 is a schematic circuit diagram of a power supply switch control circuit of the whole system according to an embodiment of the present invention;
description of reference numerals:
1: a high-safety portable emergency starting power supply; 11: an electronic switch; 12: a loading current detection module; 13: a single chip microcomputer control module; 14: outputting a clip falling signal detection and identification module; 15: the whole machine system power supply switch control circuit; 16: an internal core battery; 17: an output clip; 18: and a trigger signal output module.
Detailed Description
In order to make the disclosure more complete and complete, reference is made to the appended drawings and the following detailed description of the invention. However, it should be understood by those skilled in the art that the examples provided below are not intended to limit the scope of the present invention. In addition, the drawings are only for illustrative purposes and are not drawn to scale.
Embodiments of various aspects of the present invention are described in further detail below with reference to the figures.
Fig. 1-6 are schematic diagrams of a preferred structure of the high-safety portable emergency starting power supply of the present invention.
In this embodiment, the high-safety portable emergency starting power supply (1) is used for emergency starting of an automobile, and comprises an internal core battery (16), an output clip (17), a complete machine system power supply switch control circuit (15), an electronic switch (11), a loading current detection module (12), a single-chip microcomputer control module (13) and an output clip signal detection and identification module (14), and further, the high-safety portable emergency starting power supply (1) further comprises a lighting module, a USB output module, a charging system, a BMS system, a display function, a positive and negative connection protection module, a misconnection protection module, a short-circuit protection module, a temperature protection module, a high-low voltage protection module, a sound warning module and an overtime turn-off module; when the high-safety portable emergency starting power supply (1) detects that the output clamp (17) is disconnected from the automobile, the connection between the internal core battery (11) and the output clamp (17) is automatically cut off; wherein:
the electronic switch (11) is connected between the internal core battery (16) and the output clip (17);
the whole machine system power supply switch control circuit (15) is connected between the single chip microcomputer control module (13) and the internal core battery (16) and is used for controlling the high-safety portable emergency starting power supply (1) to be started and closed;
the output clamp signal detection and identification module (14) is connected between the single-chip microcomputer control module (13) and the output clamp (17) and is used for detecting whether the output clamp (17) is disconnected with the automobile or not;
the single chip microcomputer control module (13) is connected with the electronic switch (11);
the singlechip control module (13) controls the electronic switch (11) to be switched off when the output clip signal detection and identification module (14) detects that the output clip (17) is disconnected with the automobile;
specifically, the single chip microcomputer control module (13) comprises 48 pins, wherein the No. 17 pin is DA-TEST and is connected with the loading current detection module (12); the No. 18 pin is S1S2-TEST and is connected with a power supply switch control circuit (15) of the whole machine system; the No. 33 pin is VCC-Ctrl and is connected with a power supply switch control circuit (15) of the whole machine system; the No. 39 pin is VOL1.5V and is connected with the output clip signal detection and identification module (14); the No. 25 pin is MOS-Ctrl and is connected with the electronic switch (11); and the rest pins are connected with the lighting module, the USB output module, the charging system module, the BMS system module, the display function module, the positive and negative connection protection module, the misconnection protection module, the short-circuit protection module, the temperature protection module, the high-low voltage protection module, the sound warning module and the overtime turn-off module.
In this embodiment, the loading current detection module (12) is respectively connected to the internal core battery (16) and the output clip (17), and is configured to detect whether the high-safety portable emergency starting power supply (1) is started; the loading current detection module (12) is connected with the single-chip microcomputer control module (13), when the loading current detection module (12) detects that the high-safety portable emergency starting power supply (1) is started, a starting signal is output to the single-chip microcomputer control module (13), and the single-chip microcomputer control module (13) controls the electronic switch (11) to be conducted according to the starting signal.
In the embodiment, when the output clamp signal detection and identification module (14) detects that the output clamp (17) is disconnected from the automobile, an output clamp state signal is sent to the single-chip microcomputer control module (13), and the single-chip microcomputer control module (13) controls the electronic switch (11) to be turned off according to the output clamp state signal.
In this embodiment, the output clamp signal detection and identification module (14) comprises a voltage comparison circuit, the voltage comparison circuit comprises a first operational amplifier, an input end of the first operational amplifier is connected with the output clamp (17), and an output end of the first operational amplifier is connected with the single-chip microcomputer control module (13);
the output clamp (17) inputs a voltage signal to the input end of the first operational amplifier; the output end of the first operational amplifier outputs an output clamp state signal to the single-chip microcomputer control module (13) according to the voltage signal, and the single-chip microcomputer control module (13) outputs a turn-off signal to the electronic switch (11) according to the output clamp state signal.
In the embodiment, the loading current detection module (12) comprises an operational amplifier circuit, the operational amplifier circuit comprises a second operational amplifier, one input end of the second operational amplifier is connected with the negative electrode of the output clamp (17), the other input end of the second operational amplifier is connected with the negative electrode of the internal core battery (11), and the output end of the second operational amplifier is connected with the single-chip microcomputer control module (13); the negative electrode of the output clamp (17) inputs a potential signal to the input end of the second operational amplifier, the output end of the second operational amplifier outputs a starting signal to the single-chip microcomputer control module (13) according to the potential signal, and the single-chip microcomputer control module (13) outputs a conducting signal to the electronic switch (11) according to the starting signal to enable the electronic switch (11) to be conducted.
In the embodiment, the electronic switch (11) comprises two groups of back-to-back MOS, specifically, one group of MOS is composed of Q25, Q26 and Q27, and the other group of MOS is composed of Q28, Q29 and Q30; the two groups of MOS are connected between the internal core battery (16) and the output clamp (17), and specifically, the two groups of MOS are connected in series with the internal core battery (16) and the output clamp (17); the two groups of MOS are connected with the single chip microcomputer control module (13), specifically, the single chip microcomputer control module (13) is connected with the two groups of MOS through the MOS-Ctrl port, the two groups of MOS receive a switch-on signal or a switch-off signal of the single chip microcomputer control module (13) through the MOS-Ctrl port, and control the switch-on or switch-off of the output clamp (17) and the internal core battery (16), specifically, the switch-on signal is a high level signal, and the switch-off signal is a low level signal.
In this embodiment, the electronic switch (11) further includes a turn-on and turn-off fast response circuit, the turn-on and turn-off fast response circuit is connected to the two sets of MOS, and the turn-on and turn-off fast response circuit controls the two sets of MOS to be safely switched between a turn-on state and a turn-off state.
In this embodiment, the power supply switch control circuit (15) of the whole system includes a switch, the switch is connected to the single chip microcomputer control module (13), the power supply switch control circuit (15) of the whole system sends switch state information to the single chip microcomputer control module (13), the single chip microcomputer control module (13) returns power supply control information to the power supply switch control circuit (15) of the whole system according to the switch state information, and the power supply switch control circuit (15) of the whole system controls the high-safety portable emergency starting power supply (1) to be started or closed according to the power supply control information.
In this embodiment, the power supply switch control circuit (15) of the whole system includes a triode, the triode is connected to the single-chip microcomputer control module (13), and the power supply switch control circuit (15) of the whole system controls the conduction and the disconnection of the triode according to the power control information, specifically, when the triode is conducted, the high-safety portable emergency starting power supply (1) is started, and when the triode is disconnected, the high-safety portable emergency starting power supply (1) is turned off.
Specifically, the power supply switch control circuit (15) of the whole machine system and the single chip microcomputer control module (13) are connected with the VCC-Ctrl port through the S1S2-TEST port, the power supply switch control circuit (15) of the whole machine system sends the switch state information to the single chip microcomputer control module (13) through the S1S2-TEST port, and the single chip microcomputer control module (13) returns the power supply control information to the power supply switch control circuit (15) of the whole machine system through the VCC-Ctrl port;
specifically, the switches are a switch SW1 and a switch SW2, the high safety portable emergency starting power supply (1) is started or closed by the user through the switch SW1, and the high safety portable emergency starting power supply (1) is forcibly started by the user through the switch SW 2;
specifically, when a user presses the switch SW1, the complete machine system power supply switch control circuit (15) sends the switch state information to the single chip microcomputer control module (13) through the S1S2-TEST port, specifically, the switch state information is an S1 start signal at this time, the single chip microcomputer control module (13) receives the S1 start signal and then returns power supply control information to the complete machine system power supply switch control circuit (15) through the VCC-Ctrl port, specifically, the power supply control information is a high level signal at this time, the high level signal controls the triode to be turned on, and the high-security portable emergency start power supply (1) is started; when the triode is turned on, when a user presses the switch SW1 again, the whole machine system power supply switch control circuit (15) sends the switch state information to the single-chip microcomputer control module (13) through the S1S2-TEST port, specifically, the switch state information is an S1 turn-off signal at the moment, the single-chip microcomputer control module (13) receives the S1 turn-off signal and then returns the power supply control information to the whole machine system power supply switch control circuit (15) through the VCC-Ctrl port, specifically, the power supply control information is a low level signal at the moment, the low level signal controls the triode to be turned off, and the high-safety portable emergency starting power supply (1) is turned off;
specifically, when the high-safety portable emergency starting power supply (1) is started, and when the voltage of the output clamp (17) is too low or no voltage, if a user needs to have an output of the high-safety portable emergency starting power supply (1), the user can press the switch SW2 for more than 3 seconds, the whole system power supply switch control circuit (15) sends the switch state information to the single-chip microcomputer control module (13) through the S1S2-TEST port, specifically, the switch state information is an S2 starting signal at this time, and after the single-chip microcomputer control module (13) receives the S2 starting signal, the single-chip microcomputer control module outputs a conducting signal to the electronic switch (11) through the MOS-Ctrl port to control the electronic switch (11) to be conducted, specifically, the conducting signal is at a high level; when the user presses the switch SW2 again, the power supply switch control circuit (15) of the whole system sends the switch state information to the single chip microcomputer control module (13) through the S1S2-TEST port, specifically, the switch state information is an S2 turn-off signal at this time, and after receiving the S2 turn-off signal, the single chip microcomputer control module (13) outputs a turn-off signal to the electronic switch (11) through the MOS-Ctrl port to control the electronic switch (11) to turn off, specifically, the turn-off signal is at a low level.
In this embodiment, the high-safety portable emergency starting power supply (1) further includes a trigger signal output module (18), the trigger signal output module (18) is connected between the single-chip microcomputer control module (13) and the electronic switch (11), and the single-chip microcomputer control module (13) controls the electronic switch (11) to be turned on or off through the trigger signal output module (18);
specifically, when the single-chip microcomputer control module (13) receives an output clamp state signal of the output clamp signal detection and identification module (14), a turn-off trigger signal is sent to the trigger signal output module (18), and the trigger signal output module (18) controls the electronic switch (11) to turn off according to the turn-off trigger signal; when the single-chip microcomputer control module (13) receives a starting signal of the loading current detection module (12), a starting trigger signal is sent to the trigger signal output module (18), and the trigger signal output module (18) controls the electronic switch (11) to be conducted according to the starting trigger signal; when the single-chip microcomputer control module (13) receives an S2 turn-on signal or an S2 turn-off signal of the power supply switch control circuit (15) of the whole machine system, a start trigger signal or a turn-off trigger signal is sent to the trigger signal output module (18), and the trigger signal output module (18) controls the electronic switch (11) to be turned on or turned off according to the start trigger signal or the turn-off trigger signal.
Following the utility model discloses a further concrete description is done to the theory of operation of the portable emergent starting power of high security:
(1) when the loading current detection module (12) detects that a loading current passes through the output of the high-safety portable emergency starting power supply (1), the potential of the negative electrode of the output clamp (17) will become high, the negative electrode of the output clamp (17) inputs the potential signal to the input end of the second operational amplifier, and the potential signal is amplified by the second operational amplifier and then outputs the starting signal, specifically, the starting signal is an AD value of the output end of the second operational amplifier, and the AD value can be set, in this embodiment, when the AD value is greater than 1064, it is determined that a loading exists in the output;
specifically, the single-chip microcomputer control module (13) is connected with the second operational amplifier through a DA-TEST port, the second operational amplifier outputs an AD value of an output end of the second operational amplifier to the single-chip microcomputer control module (13) through the DA-TEST port, the single-chip microcomputer control module (13) outputs the conducting signal to the electronic switch (11) according to the AD value of the output end of the second operational amplifier, specifically, when the AD value is greater than 1064, the conducting signal is a high level signal, so that when a load is output, the high-safety portable emergency starting power supply (1) can normally work, and a detection circuit which is automatically turned off when an output clamp is dropped in a conducting state does not affect an emergency starting function of the high-safety portable emergency starting power supply (1);
further, when the high-safety portable emergency starting power supply (1) has the conditions of output overload, output short circuit, over-temperature protection starting and low-voltage protection starting, the single-chip microcomputer control module (13) outputs a low-level signal to the electronic switch (11) to control the electronic switch (11) to be switched off.
(2) When the loading current detection module (12) does not detect that the high-safety portable emergency starting power supply (1) outputs the loading current, in the embodiment, the AD value is less than 1064, the single-chip microcomputer control module (13) outputs a continuously repeated pulse wave to the electronic switch (11), for example, within 1 second, 900ms of the pulse wave output by the single-chip microcomputer control module (13) to the electronic switch (11) is high level or "1", at this time, the electronic switch (11) is turned on, and 100ms of the pulse wave output by the single-chip microcomputer control module (13) is low level or "0", at this time, the electronic switch (11) is turned off; in 100ms when the electronic switch (11) is turned off, when the voltage between the positive and negative electrodes of the output clip (17) is less than 1.5V, the output clip state signal is at a high level, and when the voltage between the positive and negative electrodes of the output clip (17) is greater than 1.5V, the output clip state signal is at a low level;
specifically, the non-inverting input end of the first operational amplifier is connected with the negative electrode of the output clamp (17) through resistors R32 and R88, and when the output clamp (17) is connected with a vehicle, namely the high-safety portable emergency starting power supply (1) starts the vehicle in an emergency mode, the voltage of the vehicle battery is loaded on two ends of the resistor R32; the inverting input end of the first operational amplifier is subjected to voltage stabilization and voltage division through an internal battery voltage BAT, a reference voltage regulator IC2, resistors R86, R70 and R4, the reference voltage of the reference voltage regulator IC2 is 2.5V, the resistors R86 and R70 are used for dividing the 2.5V voltage, and the voltage at two ends of the resistor R86 can be adjusted by adjusting the resistors R86 and R70, in the embodiment, the voltage at two ends of the resistor R86 is adjusted to be 1.5V; the output end of the first operational amplifier is connected with the VOL1.5V port of the singlechip control module (13) through a resistor R5;
specifically, when the voltage across the resistor R32 is greater than the voltage across the resistor R86, the voltage at the positive phase input terminal of the first operational amplifier is lower than the voltage at the negative phase input terminal, and the output terminal of the first operational amplifier outputs a low level to the VOL1.5V port, i.e., the output clip status signal is low; when the voltage across the resistor R32 is smaller than the voltage across the resistor R86, the voltage at the positive-phase input end of the first operational amplifier is higher than that at the negative-phase input end, and the output end of the first operational amplifier outputs a high level to the VOL1.5V port, that is, the output clamp state signal is at a high level;
specifically, the single chip microcomputer control module (13) reads the output clamp state signal through the VOL1.5V port, when the output clamp state signal is at a high level, the single chip microcomputer control module (13) outputs a pulse wave signal to the electronic switch (11), and when the output clamp state signal is at a low level, the single chip microcomputer control module (13) outputs a low level signal to the electronic switch (11) to control the electronic switch (11) to be turned off, so that the function that the high-safety portable emergency starting power supply (1) is turned off automatically when the output clamp is dropped in an on state is realized.
The utility model discloses a portable emergent starting power of high security falls clip signal detection identification module through the output and detects whether output clip breaks off with the car, and single chip microcomputer control module falls clip detection identification module's testing result according to the output and passes through the inside core battery of electronic switch control and the disconnection of output clip. The utility model discloses a portable emergent starting power of high security is starting the back, under the condition that does not close switch, can automatic identification output clip and car disconnection to turn-off output connection has avoided the safe risk that causes the short circuit of output clip and car disconnection under the state that emergent starting power started, guarantees emergent starting power normal loading output work through loading current detection module simultaneously.
Obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limited to the embodiments of the present invention, and it is obvious to those skilled in the art that other variations or changes of different forms can be made on the basis of the above description. All documents mentioned in this application are incorporated by reference into this application as if each were individually incorporated by reference.
Claims (10)
1. The utility model provides a portable emergent starting power of high security for the emergent of car starts, includes inside core battery, output clip and whole quick-witted system power supply switch control circuit, a serial communication port, the portable emergent starting power of high security still includes electronic switch, loading current detection module, single chip microcomputer control module, output and falls clip signal detection identification module, wherein:
the electronic switch is connected between the internal core battery and the output clip;
the whole machine system power supply switch control circuit is connected between the single chip microcomputer control module and the internal core battery and is used for controlling the high-safety portable emergency starting power supply to be started and closed;
the output clip signal detection and identification module is connected between the single-chip microcomputer control module and the output clip and used for detecting whether the output clip is disconnected with the automobile or not;
the single chip microcomputer control module is connected with the electronic switch;
and the singlechip control module controls the electronic switch to be switched off according to the fact that the output clip signal detection and identification module detects that the output clip is disconnected with the automobile.
2. The high-safety portable emergency starting power supply according to claim 1, wherein the loading current detection module is respectively connected to the internal core battery and the output clip, and is configured to detect whether the high-safety portable emergency starting power supply is started;
the loading current detection module is connected with the single-chip microcomputer control module, when the loading current detection module detects that the high-safety portable emergency starting power supply is started, a starting signal is output to the single-chip microcomputer control module, and the single-chip microcomputer control module controls the electronic switch to be switched on according to the starting signal.
3. The high-safety portable emergency starting power supply according to claim 2, wherein when the output clip signal detection and identification module detects that the output clip is disconnected from the automobile, an output clip state signal is sent to the single-chip microcomputer control module, and the single-chip microcomputer control module controls the electronic switch to be turned off according to the output clip state signal.
4. The high-safety portable emergency starting power supply according to claim 3, wherein the output clip signal detection and identification module comprises a voltage comparison circuit, the voltage comparison circuit comprises a first operational amplifier, an input end of the first operational amplifier is connected with the output clip, and an output end of the first operational amplifier is connected with the singlechip control module;
the output clamp inputs a voltage signal to an input end of the first operational amplifier; the output end of the first operational amplifier outputs an output clamp state signal to the single-chip microcomputer control module according to the voltage signal, and the single-chip microcomputer control module outputs a turn-off signal to the electronic switch according to the output clamp state signal.
5. The high-safety portable emergency starting power supply according to claim 4, wherein the loading current detection module comprises an operational amplifier circuit, the operational amplifier circuit comprises a second operational amplifier, one input end of the second operational amplifier is connected with the negative electrode of the output clamp, the other input end of the second operational amplifier is connected with the negative electrode of the internal core battery, and the output end of the second operational amplifier is connected with the single-chip microcomputer control module;
the negative electrode of the output clamp inputs a potential signal to the input end of the second operational amplifier, the output end of the second operational amplifier outputs a starting signal to the single-chip microcomputer control module according to the potential signal, and the single-chip microcomputer control module outputs a conducting signal to the electronic switch according to the starting signal to enable the electronic switch to be conducted.
6. The high-safety portable emergency starting power supply according to claim 5, wherein the electronic switch comprises two sets of back-to-back MOS, the two sets of MOS are connected between the internal core battery and the output clip, the two sets of MOS are connected with the single chip microcomputer control module, and the two sets of MOS receive an on signal or an off signal of the single chip microcomputer control module to control the on or off of the output clip and the internal core battery.
7. The high-safety portable emergency starting power supply according to claim 6, wherein the electronic switch further comprises an on and off fast response circuit connected to the two groups of MOS, the on and off fast response circuit controlling the two groups of MOS to safely switch between an on state and an off state.
8. The high-safety portable emergency starting power supply according to claim 1, wherein the complete machine system power supply switch control circuit comprises a switch, the switch is connected with the single-chip microcomputer control module, the complete machine system power supply switch control circuit sends switch state information to the single-chip microcomputer control module, the single-chip microcomputer control module returns power supply control information to the complete machine system power supply switch control circuit according to the switch state information, and the complete machine system power supply switch control circuit controls the high-safety portable emergency starting power supply to be started or stopped according to the power supply control information.
9. The high-safety portable emergency starting power supply according to claim 8, wherein the overall system power supply switch control circuit comprises a triode, the triode is connected with the single-chip microcomputer control module, and the overall system power supply switch control circuit controls the triode to be switched on and off according to the power supply control information;
when the triode is conducted, the high-safety portable emergency starting power supply is started, and when the triode is turned off, the high-safety portable emergency starting power supply is turned off.
10. The high-safety portable emergency starting power supply according to claim 2, further comprising a trigger signal output module, wherein the trigger signal output module is connected between the single-chip microcomputer control module and the electronic switch, and the single-chip microcomputer control module controls the electronic switch to be turned on or off through the trigger signal output module.
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| CN202021324294.0U CN213279188U (en) | 2020-07-08 | 2020-07-08 | Portable emergency starting power supply with high safety |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113183899A (en) * | 2021-05-31 | 2021-07-30 | 深圳市卓芯微科技有限公司 | Ignition control device for emergency starting power supply of three-fork automobile and application method thereof |
| CN113433486A (en) * | 2021-06-03 | 2021-09-24 | 上海广为美线电源电器有限公司 | System and method for detecting and identifying positive and negative connection of emergency starting power supply under ultra-low voltage |
-
2020
- 2020-07-08 CN CN202021324294.0U patent/CN213279188U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113183899A (en) * | 2021-05-31 | 2021-07-30 | 深圳市卓芯微科技有限公司 | Ignition control device for emergency starting power supply of three-fork automobile and application method thereof |
| CN113433486A (en) * | 2021-06-03 | 2021-09-24 | 上海广为美线电源电器有限公司 | System and method for detecting and identifying positive and negative connection of emergency starting power supply under ultra-low voltage |
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