CN113162139A - Automatic detection handheld starting device suitable for ultralow temperature starting - Google Patents
Automatic detection handheld starting device suitable for ultralow temperature starting Download PDFInfo
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- CN113162139A CN113162139A CN202110271666.0A CN202110271666A CN113162139A CN 113162139 A CN113162139 A CN 113162139A CN 202110271666 A CN202110271666 A CN 202110271666A CN 113162139 A CN113162139 A CN 113162139A
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- 238000001514 detection method Methods 0.000 title claims abstract description 68
- 239000003990 capacitor Substances 0.000 claims abstract description 126
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 86
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 86
- 238000004146 energy storage Methods 0.000 claims abstract description 49
- 238000005070 sampling Methods 0.000 claims description 75
- 230000002457 bidirectional effect Effects 0.000 claims description 25
- 230000000087 stabilizing effect Effects 0.000 claims description 24
- 238000004891 communication Methods 0.000 claims description 6
- 239000007858 starting material Substances 0.000 claims description 4
- 230000005611 electricity Effects 0.000 abstract description 5
- 238000011982 device technology Methods 0.000 abstract 1
- 238000007599 discharging Methods 0.000 description 13
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 10
- 229910001416 lithium ion Inorganic materials 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011244 liquid electrolyte Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/007188—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
- H02J7/007192—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
An automatic detection hand-held starting device suitable for ultralow temperature starting belongs to the technical field of emergency starting power supplies, and aims to solve the problem that a traditional starting device is difficult to start at low temperature, the starting device can be started at any time within a large range of-45-60 ℃ by utilizing the perfect combination of a low-temperature lithium battery pack and a super capacitor in an energy storage assembly and the excellent low-temperature characteristic of the super capacitor, so that the problem of difficult starting caused by the reduction of the discharge capacity of storage batteries such as military tanks and vehicles in a low-temperature environment is solved, the device technology is mature, and the reliability is high; the design of diodes D1, D2, D3 and D4 ensures that the intelligent control detection module takes electricity from four different places of input power supply, ultralow-temperature lithium battery, energy storage assembly and output end, and ensures the required power supply for normal start of the intelligent control detection module.
Description
Technical Field
The invention belongs to the technical field of emergency starting power supplies, and relates to an automatic detection handheld starting device suitable for ultralow temperature starting.
Background
At present, a foreign starting power supply mainly depends on an alternating current-direct current conversion technology, which is a starting mode adopted for solving the problem of emergency starting of a diesel engine in early stage, needs an external alternating current power grid as power to carry out alternating current-direct current conversion, is only suitable for being used in fixed places, does not have a moving function and a fighting function, and cannot meet the fighting requirement.
In recent years, with the rapid development of electric bicycles and electric vehicles, high-performance lithium ion batteries suitable for electric bicycles and electric vehicles have been rapidly developed and put into production, starting products have undergone rapid development in short years, and starting products have become multifunctional equipment integrating a mobile power supply, a vehicle-mounted air pump, outdoor lighting and the like from the initial single vehicle emergency starting to the present. With the development of science and technology, the emergency starting power supply gradually develops towards the directions of multifunction, safety, environmental protection, portability, small size and the like, and the application is not only limited in the automobile field, but also covers the fields of sea, land and air.
The traditional power supply device generally adopts a lithium ion battery as energy source for storage, the charging and discharging multiplying power of the lithium ion battery is in a range of 3 ℃, meanwhile, the lithium ion battery generally works in a temperature range of-10 to +55 ℃, when the lead acid battery is at a low temperature of-43 ℃, the discharging capacity is low and the discharging current is small due to large internal resistance of the battery, and the discharging multiplying power of the lithium battery is greatly reduced at the low temperature, thus the requirement of low-temperature starting of a high-power motor is not satisfied; starting the battery at the conditions of high temperature of more than 50 ℃ and battery shortage, battery damage and no battery; for military products such as 24V vehicles, tanks and armored vehicles, the requirements on high and low temperature resistant products are strict, the products generally need to work normally within the range of-45-60 ℃, and the problem of difficult starting at low temperature is caused by adopting the traditional starting device.
In the prior art, a chinese utility model patent "an ultra-low temperature starting power supply device" with application number of 201920292525.5 and publication date of 2019, 10, 8, discloses an ultra-low temperature starting power supply device, which comprises a housing, a control circuit arranged in the housing, a charging circuit connected with the control circuit, an ultra-low temperature starting battery, a charging and discharging battery, a discharging circuit and a heating device; the charging circuit is used for accessing an external power supply to rapidly charge the ultra-low temperature starting battery and/or charge a charging and discharging battery; a discharge circuit for discharging the external terminal by charging and discharging the battery; heating device is connected with the ultra-low temperature start-up battery, sets up in the charge-discharge battery outside, and the ultra-low temperature start-up battery is used for heating the charge-discharge battery for heating device power supply.
However, the above technical scheme requires the heating device to be connected with the ultra-low temperature starting battery, the ultra-low temperature starting battery supplies power to the heating device, and then the charging and discharging battery is heated and then is started to discharge the external terminal.
Disclosure of Invention
The invention aims to design an automatic detection handheld starting device suitable for ultralow-temperature starting so as to solve the problem that the traditional starting device is difficult to start at a low temperature.
The invention solves the technical problems through the following technical scheme:
an automatic detection hand-held starting device suitable for ultralow temperature starting comprises a main switch K11, an ultralow temperature lithium battery (10), a bidirectional DC/DC module (11), an energy storage assembly (12), an intelligent control detection module (13), a Hall sensor HR1, a direct current contactor K12, a diode D1, a diode D2, a diode D3 and a diode D4; the main switch K11, the ultralow temperature lithium battery (10), the bidirectional DC/DC module (11) and the energy storage assembly (12) are sequentially connected in series, the normally open contact of the direct current contactor K12 is connected in series with the output live wire end of the energy storage assembly (12), and the Hall sensor HR1 is sleeved on the live wire between the normally open contact of the energy storage assembly (12) and the direct current contactor K12; the anode of the diode D1 is connected to the live wire between the main switch K11 and the ultra-low temperature lithium battery (10), the anode of the diode D2 is connected to the live wire between the ultra-low temperature lithium battery (10) and the bidirectional DC/DC module (11), the anode of the diode D3 is connected to the live wire between the bidirectional DC/DC module (11) and the energy storage component (12), the anode of the diode D4 is connected to the live wire at the output end of the handheld starting device, the cathodes of the diode D1, the diode D2, the diode D3 and the diode D4 are connected together and then connected to the first power supply port of the intelligent control detection module (13) through the main switch K11, the on/off port of the intelligent control detection module (13) is connected to the on/off port of the bidirectional DC/DC module (11), the first voltage sampling port of the intelligent control detection module (13) is connected between the Hall sensor HR1 and the direct current contactor K12, a second voltage sampling port of the intelligent control detection module (13) is connected to the output end of the handheld starting device, and a third voltage sampling port of the intelligent control detection module (13) is connected with the ultralow-temperature lithium battery (10); one end of a first relay control port of the intelligent control detection module (13) is connected with a zero line of an input power supply, and the other end of the first relay control port is connected with an input zero line of the ultralow-temperature lithium battery (10); one end of a second relay control port of the intelligent control detection module (13) is connected with an output zero line of the ultralow-temperature lithium battery (10), and the other end of the second relay control port is connected with an input zero line of the bidirectional DC/DC module (11).
The technical scheme of the invention adopts an integrated design technology, fully utilizes the perfect combination of the low-temperature lithium battery pack (10) and the super capacitor in the energy storage assembly (12), utilizes the excellent low-temperature characteristic of the super capacitor, and can be started at any time in a large range of-45-60 ℃, thereby thoroughly solving the problem of difficult starting caused by the reduction of the discharge capacity of storage batteries of military tanks, vehicles and the like in a low-temperature environment, and designs the diode D1, the diode D2, the diode D3 and the diode D4 to ensure that the intelligent control detection module (13) obtains electricity from four different places of an input power supply, an ultralow-temperature lithium battery (10), the energy storage assembly (12) and an output end, thereby ensuring the power supply required by the normal starting of the intelligent control detection module (13).
As a further improvement of the technical scheme of the invention, the intelligent control detection device further comprises a display panel (14), and a power supply port and a communication port of the display panel (14) are respectively and correspondingly connected with a second power supply port and a communication port of the intelligent control detection module (13).
As a further improvement of the technical scheme of the invention, the intelligent control system further comprises an output switch K13, and the output switch K13 is connected in series with a capacitor discharge control port of the intelligent control detection module (13).
As a further improvement of the technical scheme of the invention, the intelligent control detection module (13) comprises: the lithium battery charging contactor control circuit comprises a main control chip (N1), a lithium battery charging contactor control circuit, a lithium battery power supply contactor control circuit, a lithium battery voltage sampling circuit, an energy storage assembly voltage sampling circuit and an external battery voltage sampling circuit; the model of the main control chip (N1) is S9S12G48F0 MLF; the lithium battery charging contactor control circuit, the lithium battery power supply contactor control circuit, the lithium battery voltage sampling circuit, the energy storage assembly voltage sampling circuit and the external battery voltage sampling circuit are respectively connected with the main control chip (N1).
As a further improvement of the technical solution of the present invention, the lithium battery charging contactor control circuit includes: the circuit comprises a resistor R50, a resistor R51, a resistor R53, an optocoupler E6, a capacitor C45, a triode Q2, a diode V10, a first contactor coil and a first contactor normally-open contact K1; one end of the resistor R50 is connected with a +5V power supply, the other end of the resistor R50 is connected with a # 1 pin of the optocoupler E6, a # 2 pin of the optocoupler E6 is connected with a # 22 pin of the main control chip (N1), a # 4 pin of the optocoupler E6 is connected with a +12V power supply, one end of the resistor R51 is connected with a # 3 pin of the optocoupler E6, the other end of the resistor R51 is connected with a base electrode of the triode Q2, after the resistor R53 is connected with the capacitor C45 in parallel, one end of the resistor R2 is connected with the base electrode of the triode Q2, and the other end of the resistor R53 is connected with an emitting electrode of the triode Q2 and then grounded; the collector of the triode Q2 is connected with one end of the first contactor coil, the other end of the first contactor coil is connected with a +12V power supply, the anode of the diode V10 is connected with the collector of the triode Q2, and the cathode of the diode V10 is connected with the +12V power supply; one end of a normally open contact K1 of the first contactor is connected with a zero line of an input power supply, and the other end of the normally open contact K1 of the first contactor is connected with an input zero line of an ultralow-temperature lithium battery (10).
As a further improvement of the technical solution of the present invention, the control circuit of the lithium battery power supply contactor includes: the device comprises a resistor R56, a resistor R60, a resistor R64, an optocoupler E8, a capacitor C53, a triode Q4, a diode V11, a second contactor coil and a second contactor normally-open contact K2; one end of the resistor R56 is connected with a +5V power supply, the other end of the resistor R56 is connected with a 1# pin of the optocoupler E8, a 2# pin of the optocoupler E8 is connected with a 21# pin of the main control chip (N1), a 4# pin of the optocoupler E8 is connected with a +12V power supply, one end of the resistor R60 is connected with a 3# pin of the optocoupler E8, the other end of the resistor R60 is connected with a base electrode of the triode Q4, after the resistor R64 is connected with the capacitor C53 in parallel, one end of the resistor R4 is connected with the base electrode of the triode Q4, and the other end of the resistor R64 is connected with an emitting electrode of the triode Q4 and then grounded; the collector of the triode Q4 is connected with one end of the second contactor coil, the other end of the second contactor coil is connected with a +12V power supply, the anode of the diode V11 is connected with the collector of the triode Q4, and the cathode of the diode V11 is connected with the +12V power supply; one end of a normally open contact K2 of the second contactor is connected with an output zero line of the ultra-low temperature lithium battery (10), and the other end of the normally open contact K2 of the second contactor is connected with an input zero line of the bidirectional DC/DC module (11).
As a further improvement of the technical solution of the present invention, the lithium battery voltage sampling circuit includes: the circuit comprises a resistor R3, a resistor R4, a resistor R9, a capacitor C9, a capacitor C10, a capacitor C12, a capacitor C13, a capacitor C14, an operational amplifier N2A, a diode V1, a diode V2, a voltage stabilizing diode V3, a third contactor coil and a third contactor normally-open contact K3; one end of the resistor R4 is connected with the positive phase input end of the operational amplifier N2A, the other end of the resistor R4 is connected with one end of a normally open contact K3 of the third contactor, the other end of the normally open contact K3 of the third contactor is connected with the cathode of the diode V2, and the anode of the diode V2 is used as a voltage sampling signal input end and is connected with the ultralow temperature lithium battery (10); the resistor R9 is connected with the capacitor C12 in parallel, one end of the resistor R9 is connected with the non-inverting input end of the operational amplifier N2A, and the other end of the resistor R9 is grounded; the anode of the voltage stabilizing diode V3 is grounded, and the cathode of the voltage stabilizing diode V3 is connected with the common connection point of the resistor R4 and the normally open contact K3 of the third contactor; the capacitor C13 is connected in parallel at two ends of the voltage-stabilizing diode V3; the positive power supply end of the operational amplifier N2A is connected with a +5V power supply, and the negative power supply end of the operational amplifier N2A is grounded; one end of the capacitor C14 is connected with the positive power end of the operational amplifier N2A, and the other end is grounded; the inverting input end of the operational amplifier N2A is connected to the output end of the operational amplifier N2A; one end of the resistor R3 is connected with the output end of the operational amplifier N2A, and the other end of the resistor R3 is used as the output end of the lithium battery voltage sampling circuit; one end of the capacitor C9 and the other end of the capacitor C10 are connected in parallel and then connected to the output end of the lithium battery voltage sampling circuit, and the other end of the capacitor C9 and the other end of the capacitor C10 are grounded; the output end of the lithium battery voltage sampling circuit is connected with a No. 35 pin of a main control chip (N1).
As a further improvement of the technical solution of the present invention, the energy storage component voltage sampling circuit includes: a resistor R11, a resistor R12, a resistor R16, a capacitor C21, a capacitor C22, a capacitor C23, a capacitor C24, an operational amplifier N4B, a diode V4 and a zener diode V5; one end of the resistor R12 is connected with the positive phase input end of the operational amplifier N4B, the other end of the resistor R12 is connected with the cathode of the diode V4, and the anode of the diode V4 is connected between the Hall sensor HR1 and the direct current contactor K12 as the voltage sampling signal input end; the resistor R16 is connected with the capacitor C24 in parallel, one end of the resistor R16 is connected with the non-inverting input end of the operational amplifier N4B, and the other end of the resistor R16 is grounded; the anode of the voltage stabilizing diode V5 is grounded, and the cathode of the voltage stabilizing diode V5 is connected to the common connection point of the diode V4 and the resistor R12; the capacitor C23 is connected in parallel with two ends of the voltage-stabilizing diode V5; the inverting input end of the operational amplifier N4B is connected to the output end of the operational amplifier N4B; one end of the resistor R11 is connected with the output end of the operational amplifier N4B, and the other end of the resistor R11 is used as the output end of the energy storage component voltage sampling circuit; one end of the capacitor C21 and the other end of the capacitor C22 are connected in parallel and are connected with the output end of the energy storage component voltage sampling circuit, and the other end of the capacitor C21 and the other end of the capacitor C22 are grounded; the output end of the energy storage component voltage sampling circuit is connected with a pin # 34 of a main control chip (N1).
As a further improvement of the technical solution of the present invention, the external battery voltage sampling circuit includes: a resistor R29, a resistor R32, a resistor R39, a capacitor C29, a capacitor C30, a capacitor C31, a capacitor C32, a capacitor C33, an operational amplifier N4A, a diode V7 and a voltage stabilizing diode V8; one end of the resistor R32 is connected with the positive phase input end of the operational amplifier N4A, the other end of the resistor R32 is connected with the cathode of the diode V7, and the anode of the diode V7 is connected with the output end of the handheld starting device as the voltage sampling signal input end; the resistor R39 is connected with the capacitor C31 in parallel, one end of the resistor R39 is connected with the non-inverting input end of the operational amplifier N4A, and the other end of the resistor R39 is grounded; the anode of the voltage stabilizing diode V8 is grounded, and the cathode of the voltage stabilizing diode V8 is connected to the common connection point of the diode V7 and the resistor R32; the capacitor C32 is connected in parallel with two ends of the voltage-stabilizing diode V8; the positive power supply end of the operational amplifier N4A is connected with the +5V power supply, and the negative power supply end of the operational amplifier N4A is grounded; one end of the capacitor C33 is connected with the positive power end of the operational amplifier N4A, and the other end is grounded; the inverting input end of the operational amplifier N4A is connected to the output end of the operational amplifier N4A; one end of the resistor R29 is connected with the output end of the operational amplifier N4A, and the other end of the resistor R29 is used as the output end of the external battery voltage sampling circuit; one end of the capacitor C29 and the other end of the capacitor C30 are connected in parallel and are connected with the output end of the external battery voltage sampling circuit, and the other end of the capacitor C29 and the other end of the capacitor C30 are grounded; the output end of the external battery voltage sampling circuit is connected with a # 33 pin of a main control chip (N1).
As a further improvement of the technical scheme of the invention, the model of the main control chip (N1) is S9S12G48F0 MLF.
The invention has the advantages that:
(1) the technical scheme of the invention adopts an integrated design technology, fully utilizes the perfect combination of the low-temperature lithium battery pack (10) and the super capacitor in the energy storage assembly (12), utilizes the excellent low-temperature characteristic of the super capacitor, can be started at any time within a large range of-45-60 ℃, thoroughly solves the problem of difficult starting caused by the reduction of the discharge capacity of storage batteries of military tanks, vehicles and the like in a low-temperature environment, designs the diode D1, the diode D2, the diode D3 and the diode D4, ensures that the intelligent control detection module (13) obtains electricity from four different places of an input power supply, an ultralow-temperature lithium battery (10), the energy storage assembly (12) and an output end, and ensures the power supply required by the normal starting of the intelligent control detection module (13);
(2) the service life is long: by adopting the design scheme of combining the super capacitor assembly and the battery pack, the advantages of high power density of the super capacitor assembly and high energy density of the battery pack can be fully exerted, the cycle life of the super capacitor assembly reaches more than 100 ten thousand times, the cycle life is favorably prolonged, the system technology is mature, and the reliability is high;
(3) the technical scheme (4) of the invention is that the ultralow temperature lithium battery (10) has the characteristics of miniaturization, thinness, light weight and higher safety, and the thickness can be as thin as 0.5 mm.
Drawings
FIG. 1 is a circuit diagram of an automatic detection hand-held starter suitable for ultra-low temperature starting according to an embodiment of the present invention;
FIG. 2 is a circuit diagram of a main control chip of the intelligent control detection module according to an embodiment of the present invention;
FIG. 3 is a diagram of a lithium battery charging contactor control circuit according to an embodiment of the present invention;
FIG. 4 is a circuit diagram of a lithium battery powered contactor control circuit according to an embodiment of the present invention;
FIG. 5 is a circuit diagram of a lithium battery voltage sampling circuit according to an embodiment of the present invention;
FIG. 6 is a circuit diagram of a voltage sampling circuit of the energy storage assembly according to an embodiment of the invention;
fig. 7 is an external battery voltage sampling circuit including a diagram of an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical scheme of the invention is further described by combining the drawings and the specific embodiments in the specification:
example one
As shown in fig. 1, the automatic detection hand-held starting device suitable for ultralow temperature starting comprises a main switch K11, an ultralow temperature lithium battery 10, a bidirectional DC/DC module 11, an energy storage assembly 12, an intelligent control detection module 13, a display panel 14, a hall sensor HR1, a direct current contactor K12, an output switch K13, a diode D1, a diode D2, a diode D3 and a diode D4.
The main switch K11, the ultralow temperature lithium battery 10, the bidirectional DC/DC module 11 and the energy storage assembly 12 are sequentially connected in series, the normally open contact of the direct current contactor K12 is connected in series with the output live wire end of the energy storage assembly 12, and the Hall sensor HR1 is sleeved on the live wire between the normally open contacts of the energy storage assembly 12 and the direct current contactor K12; the anode of the diode D1 is connected to the live wire between the main switch K11 and the ultra-low temperature lithium battery 10, the anode of the diode D2 is connected to the live wire between the ultra-low temperature lithium battery 10 and the bidirectional DC/DC module 11, the anode of the diode D3 is connected to the live wire between the bidirectional DC/DC module 11 and the energy storage component 12, the anode of the diode D4 is connected to the live wire at the output end of the handheld starting device, the cathodes of the diode D1, the diode D2, the diode D3 and the diode D4 are connected together and then connected to the first power supply port of the intelligent control detection module 13 through the main switch K11, the on/off port of the intelligent control detection module 13 is connected to the on/off port of the bidirectional DC/DC module 11, the first voltage sampling port of the intelligent control detection module 13 is connected between the Hall sensor HR1 and the direct current contactor K12, a second voltage sampling port of the intelligent control detection module 13 is connected to the output end of the handheld starting device, a third voltage sampling port of the intelligent control detection module 13 is connected with the ultra-low temperature lithium battery 10, a second power supply port and a communication port of the intelligent control detection module 13 are correspondingly connected with a power supply port and a communication port of the display panel 14 respectively, and the output switch K13 is connected in series with a capacitor discharge control port of the intelligent control detection module 13; one end of a first relay control port of the intelligent control detection module 13 is connected with a zero line of an input power supply, and the other end of the first relay control port is connected with an input zero line of the ultralow temperature lithium battery 10; one end of a second relay control port of the intelligent control detection module 13 is connected with an output zero line of the ultra-low temperature lithium battery 10, and the other end of the second relay control port is connected with an input zero line of the bidirectional DC/DC module 11.
The diode D1, the diode D2, the diode D3 and the diode D4 play the following roles: the intelligent control detection module 13 can respectively get electricity from the input power supply, the ultralow temperature lithium battery 10, the energy storage assembly 12 and the output end, and get electricity from four different places, so that the required power supply for normal starting of the intelligent control detection module 13 is ensured.
The ultra-low temperature lithium battery 10 has the advantages that the polymer lithium ion battery has the advantages of thinness, arbitrary area, arbitrary shape and the like compared with the liquid lithium ion battery because the solid electrolyte replaces the liquid electrolyte, so that the battery shell can be manufactured by an aluminum-plastic composite film, and the specific capacity of the whole battery can be improved; the high polymer lithium ion battery can also adopt high polymer as the anode material, and the mass specific energy of the high polymer lithium ion battery is improved by more than 20 percent compared with the current liquid lithium ion battery. The high polymer lithium ion battery has the characteristics of miniaturization, thinning, light weight and higher safety, and the thickness can be as thin as 0.5 mm.
The intelligent control detection module 13 is used for detecting the voltage, current, temperature, real-time electric quantity and the like of the system; the system is used for collecting the charging and discharging voltage, the charging and discharging current, the temperature of the battery pack, the state of the bidirectional DC/DC module 11, the charging current, the charging and discharging voltage of the energy storage assembly 12, the starting current, the temperature of the energy storage assembly 12 and the like of the ultralow-temperature lithium battery 10; and the energy storage component 12 is controlled to discharge with large multiplying power at low temperature.
The intelligent control detection module 13 shown in fig. 2 to 7 includes: the system comprises a main control chip N1, a lithium battery charging contactor control circuit, a lithium battery power supply contactor control circuit, a lithium battery voltage sampling circuit, an energy storage assembly voltage sampling circuit and an external battery voltage sampling circuit; the model of the main control chip N1 is S9S12G48F0 MLF; the lithium battery charging contactor control circuit, the lithium battery power supply contactor control circuit, the lithium battery voltage sampling circuit, the energy storage assembly voltage sampling circuit and the external battery voltage sampling circuit are respectively connected with the main control chip N1.
As shown in fig. 3, the lithium battery charging contactor control circuit includes: the circuit comprises a resistor R50, a resistor R51, a resistor R53, an optocoupler E6, a capacitor C45, a triode Q2, a diode V10, a first contactor coil and a first contactor normally-open contact K1; one end of the resistor R50 is connected with a +5V power supply, the other end of the resistor R50 is connected with a 1# pin of an optocoupler E6, a 2# pin of the optocoupler E6 is connected with a 22# pin of a main control chip N1, a 4# pin of the optocoupler E6 is connected with a +12V power supply, one end of the resistor R51 is connected with a 3# pin of an optocoupler E6, the other end of the resistor R51 is connected with a base electrode of a triode Q2, after the resistor R53 is connected with a capacitor C45 in parallel, one end of the resistor R2 is connected with a base electrode of the triode Q2, and the other end of the resistor R53 is connected with an emitting electrode of the triode Q2 and then grounded; the collector of the triode Q2 is connected with one end of the first contactor coil, the other end of the first contactor coil is connected with a +12V power supply, the anode of the diode V10 is connected with the collector of the triode Q2, and the cathode of the diode V10 is connected with the +12V power supply; one end of a normally open contact K1 of the first contactor is connected with a zero line of an input power supply, and the other end of the normally open contact K1 is connected with an input zero line of the ultra-low temperature lithium battery 10.
As shown in fig. 4, the control circuit of the lithium battery power supply contactor includes: the device comprises a resistor R56, a resistor R60, a resistor R64, an optocoupler E8, a capacitor C53, a triode Q4, a diode V11, a second contactor coil and a second contactor normally-open contact K2; one end of the resistor R56 is connected with a +5V power supply, the other end of the resistor R56 is connected with a 1# pin of an optocoupler E8, a 2# pin of the optocoupler E8 is connected with a 21# pin of a main control chip N1, a 4# pin of the optocoupler E8 is connected with a +12V power supply, one end of the resistor R60 is connected with a 3# pin of an optocoupler E8, the other end of the resistor R60 is connected with a base electrode of a triode Q4, after the resistor R64 is connected with a capacitor C53 in parallel, one end of the resistor R4 is connected with a base electrode of the triode Q4, and the other end of the resistor R64 is connected with an emitting electrode of the triode Q4 and then grounded; the collector of the triode Q4 is connected with one end of the second contactor coil, the other end of the second contactor coil is connected with a +12V power supply, the anode of the diode V11 is connected with the collector of the triode Q4, and the cathode of the diode V11 is connected with the +12V power supply; one end of a normally open contact K2 of the second contactor is connected with an output zero line of the ultra-low temperature lithium battery 10, and the other end is connected with an input zero line of the bidirectional DC/DC module 11.
As shown in fig. 5, the lithium battery voltage sampling circuit includes: the circuit comprises a resistor R3, a resistor R4, a resistor R9, a capacitor C9, a capacitor C10, a capacitor C12, a capacitor C13, a capacitor C14, an operational amplifier N2A, a diode V1, a diode V2, a voltage stabilizing diode V3, a third contactor coil and a third contactor normally-open contact K3; one end of the resistor R4 is connected with the positive phase input end of the operational amplifier N2A, the other end of the resistor R4 is connected with one end of a normally open contact K3 of the third contactor, the other end of the normally open contact K3 of the third contactor is connected with the cathode of the diode V2, and the anode of the diode V2 is used as a voltage sampling signal input end and is connected with the ultralow temperature lithium battery 10; the resistor R9 is connected with the capacitor C12 in parallel, one end of the resistor R9 is connected with the non-inverting input end of the operational amplifier N2A, and the other end of the resistor R9 is grounded; the anode of the voltage stabilizing diode V3 is grounded, and the cathode of the voltage stabilizing diode V3 is connected with the common connection point of the resistor R4 and the normally open contact K3 of the third contactor; the capacitor C13 is connected in parallel at two ends of the voltage-stabilizing diode V3; the positive power supply end of the operational amplifier N2A is connected with a +5V power supply, and the negative power supply end of the operational amplifier N2A is grounded; one end of the capacitor C14 is connected with the positive power end of the operational amplifier N2A, and the other end is grounded; the inverting input end of the operational amplifier N2A is connected to the output end of the operational amplifier N2A; one end of the resistor R3 is connected with the output end of the operational amplifier N2A, and the other end of the resistor R3 is used as the output end of the lithium battery voltage sampling circuit; one end of the capacitor C9 and the other end of the capacitor C10 are connected in parallel and then connected to the output end of the lithium battery voltage sampling circuit, and the other end of the capacitor C9 and the other end of the capacitor C10 are grounded; the output end of the lithium battery voltage sampling circuit is connected with a 35# pin of the main control chip N1.
As shown in fig. 6, the energy storage component voltage sampling circuit includes: a resistor R11, a resistor R12, a resistor R16, a capacitor C21, a capacitor C22, a capacitor C23, a capacitor C24, an operational amplifier N4B, a diode V4 and a zener diode V5; one end of the resistor R12 is connected with the positive phase input end of the operational amplifier N4B, the other end of the resistor R12 is connected with the cathode of the diode V4, and the anode of the diode V4 is connected between the Hall sensor HR1 and the direct current contactor K12 as the voltage sampling signal input end; the resistor R16 is connected with the capacitor C24 in parallel, one end of the resistor R16 is connected with the non-inverting input end of the operational amplifier N4B, and the other end of the resistor R16 is grounded; the anode of the voltage stabilizing diode V5 is grounded, and the cathode of the voltage stabilizing diode V5 is connected to the common connection point of the diode V4 and the resistor R12; the capacitor C23 is connected in parallel with two ends of the voltage-stabilizing diode V5; the inverting input end of the operational amplifier N4B is connected to the output end of the operational amplifier N4B; one end of the resistor R11 is connected with the output end of the operational amplifier N4B, and the other end of the resistor R11 is used as the output end of the energy storage component voltage sampling circuit; one end of the capacitor C21 and the other end of the capacitor C22 are connected in parallel and are connected with the output end of the energy storage component voltage sampling circuit, and the other end of the capacitor C21 and the other end of the capacitor C22 are grounded; the output end of the energy storage component voltage sampling circuit is connected with the 34# pin of the main control chip N1.
As shown in fig. 7, the external battery voltage sampling circuit includes: a resistor R29, a resistor R32, a resistor R39, a capacitor C29, a capacitor C30, a capacitor C31, a capacitor C32, a capacitor C33, an operational amplifier N4A, a diode V7 and a voltage stabilizing diode V8; one end of the resistor R32 is connected with the positive phase input end of the operational amplifier N4A, the other end of the resistor R32 is connected with the cathode of the diode V7, and the anode of the diode V7 is connected with the output end of the handheld starting device as the voltage sampling signal input end; the resistor R39 is connected with the capacitor C31 in parallel, one end of the resistor R39 is connected with the non-inverting input end of the operational amplifier N4A, and the other end of the resistor R39 is grounded; the anode of the voltage stabilizing diode V8 is grounded, and the cathode of the voltage stabilizing diode V8 is connected to the common connection point of the diode V7 and the resistor R32; the capacitor C32 is connected in parallel with two ends of the voltage-stabilizing diode V8; the positive power supply end of the operational amplifier N4A is connected with the +5V power supply, and the negative power supply end of the operational amplifier N4A is grounded; one end of the capacitor C33 is connected with the positive power end of the operational amplifier N4A, and the other end is grounded; the inverting input end of the operational amplifier N4A is connected to the output end of the operational amplifier N4A; one end of the resistor R29 is connected with the output end of the operational amplifier N4A, and the other end of the resistor R29 is used as the output end of the external battery voltage sampling circuit; one end of the capacitor C29 and the other end of the capacitor C30 are connected in parallel and are connected with the output end of the external battery voltage sampling circuit, and the other end of the capacitor C29 and the other end of the capacitor C30 are grounded; the output end of the external battery voltage sampling circuit is connected with the 33# pin of the main control chip N1.
The specific working flow of the automatic detection handheld starting device suitable for ultralow temperature starting is as follows:
1. when the starting device is started, the electric quantity of an internal ultralow-temperature lithium battery 10 is detected, the electric quantity is lower than 10%, the system prompts that charging is needed, and the starting device is automatically shut down after being fully charged;
2. when the starting device is used, the internal intelligent control detection module 13 automatically detects the ambient temperature; when the starting device is in a normal temperature environment, power supply/starting is carried out to the outside after the starting device is started; after the starting is successful, the external equipment carries out current-limiting charging on the ultralow-temperature lithium battery 10 through the bidirectional DC/DC module 11; at low temperature, the intelligent control detection module 13 automatically detects the ambient temperature, the ambient temperature is lower than minus 30 ℃, the bidirectional DC/DC module 11 is started, and the low-temperature lithium battery 10 charges the energy storage assembly 12;
3. after the intelligent control detection module 13 detects that the energy storage assembly 12 is fully charged, the direct current contactor K12 is automatically closed; the energy storage component 12 can start/supply power to external equipment;
4. the intelligent control detection module 13 detects the external starting condition, and after the external starting is successful, the intelligent control detection module 13 in the starting device automatically disconnects the direct current contactor K12; the output end of the starting device is ensured to be uncharged after the starting is successful;
5. if the external equipment fails to start, the bidirectional DC/DC module 11 in the starting device can continuously charge the energy storage assembly 12, and the energy storage assembly 12 continuously supplies power to the outside until the external equipment is successfully started or the electric quantity of the ultralow-temperature lithium battery 10 in the starting device is low, and the output is automatically cut off.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The automatic detection hand-held starting device suitable for ultralow temperature starting is characterized by comprising a main switch K11, an ultralow temperature lithium battery (10), a bidirectional DC/DC module (11), an energy storage assembly (12), an intelligent control detection module (13), a Hall sensor HR1, a direct current contactor K12, a diode D1, a diode D2, a diode D3 and a diode D4; the main switch K11, the ultralow temperature lithium battery (10), the bidirectional DC/DC module (11) and the energy storage assembly (12) are sequentially connected in series, the normally open contact of the direct current contactor K12 is connected in series with the output live wire end of the energy storage assembly (12), and the Hall sensor HR1 is sleeved on the live wire between the normally open contact of the energy storage assembly (12) and the direct current contactor K12; the anode of the diode D1 is connected to the live wire between the main switch K11 and the ultra-low temperature lithium battery (10), the anode of the diode D2 is connected to the live wire between the ultra-low temperature lithium battery (10) and the bidirectional DC/DC module (11), the anode of the diode D3 is connected to the live wire between the bidirectional DC/DC module (11) and the energy storage component (12), the anode of the diode D4 is connected to the live wire at the output end of the handheld starting device, the cathodes of the diode D1, the diode D2, the diode D3 and the diode D4 are connected together and then connected to the first power supply port of the intelligent control detection module (13) through the main switch K11, the on/off port of the intelligent control detection module (13) is connected to the on/off port of the bidirectional DC/DC module (11), the first voltage sampling port of the intelligent control detection module (13) is connected between the Hall sensor HR1 and the direct current contactor K12, a second voltage sampling port of the intelligent control detection module (13) is connected to the output end of the handheld starting device, and a third voltage sampling port of the intelligent control detection module (13) is connected with the ultralow-temperature lithium battery (10); one end of a first relay control port of the intelligent control detection module (13) is connected with a zero line of an input power supply, and the other end of the first relay control port is connected with an input zero line of the ultralow-temperature lithium battery (10); one end of a second relay control port of the intelligent control detection module (13) is connected with an output zero line of the ultralow-temperature lithium battery (10), and the other end of the second relay control port is connected with an input zero line of the bidirectional DC/DC module (11).
2. The automatic detection handheld starting device suitable for ultralow temperature starting according to claim 1, further comprising a display panel (14), wherein the power supply port and the communication port of the display panel (14) are respectively connected with the second power supply port and the communication port of the intelligent control detection module (13).
3. The automatic detection hand-held starter for ultra-low temperature starting according to claim 1, further comprising an output switch K13, wherein the output switch K13 is connected in series with the capacitor discharge control port of the intelligent control detection module (13).
4. The automatic detection hand-held startup device for ultralow temperature startup as set forth in claim 1, wherein said intelligent control detection module (13) comprises: the lithium battery charging contactor control circuit comprises a main control chip (N1), a lithium battery charging contactor control circuit, a lithium battery power supply contactor control circuit, a lithium battery voltage sampling circuit, an energy storage assembly voltage sampling circuit and an external battery voltage sampling circuit; the model of the main control chip (N1) is S9S12G48F0 MLF; the lithium battery charging contactor control circuit, the lithium battery power supply contactor control circuit, the lithium battery voltage sampling circuit, the energy storage assembly voltage sampling circuit and the external battery voltage sampling circuit are respectively connected with the main control chip (N1).
5. The automatic detection hand-held starter for ultralow temperature starting according to claim 4, wherein said lithium battery charging contactor control circuit comprises: the circuit comprises a resistor R50, a resistor R51, a resistor R53, an optocoupler E6, a capacitor C45, a triode Q2, a diode V10, a first contactor coil and a first contactor normally-open contact K1; one end of the resistor R50 is connected with a +5V power supply, the other end of the resistor R50 is connected with a # 1 pin of the optocoupler E6, a # 2 pin of the optocoupler E6 is connected with a # 22 pin of the main control chip (N1), a # 4 pin of the optocoupler E6 is connected with a +12V power supply, one end of the resistor R51 is connected with a # 3 pin of the optocoupler E6, the other end of the resistor R51 is connected with a base electrode of the triode Q2, after the resistor R53 is connected with the capacitor C45 in parallel, one end of the resistor R2 is connected with the base electrode of the triode Q2, and the other end of the resistor R53 is connected with an emitting electrode of the triode Q2 and then grounded; the collector of the triode Q2 is connected with one end of the first contactor coil, the other end of the first contactor coil is connected with a +12V power supply, the anode of the diode V10 is connected with the collector of the triode Q2, and the cathode of the diode V10 is connected with the +12V power supply; one end of a normally open contact K1 of the first contactor is connected with a zero line of an input power supply, and the other end of the normally open contact K1 of the first contactor is connected with an input zero line of an ultralow-temperature lithium battery (10).
6. The automatic detection hand-held starter for ultra-low temperature starting of claim 4, wherein the control circuit of the lithium battery power supply contactor comprises: the device comprises a resistor R56, a resistor R60, a resistor R64, an optocoupler E8, a capacitor C53, a triode Q4, a diode V11, a second contactor coil and a second contactor normally-open contact K2; one end of the resistor R56 is connected with a +5V power supply, the other end of the resistor R56 is connected with a 1# pin of the optocoupler E8, a 2# pin of the optocoupler E8 is connected with a 21# pin of the main control chip (N1), a 4# pin of the optocoupler E8 is connected with a +12V power supply, one end of the resistor R60 is connected with a 3# pin of the optocoupler E8, the other end of the resistor R60 is connected with a base electrode of the triode Q4, after the resistor R64 is connected with the capacitor C53 in parallel, one end of the resistor R4 is connected with the base electrode of the triode Q4, and the other end of the resistor R64 is connected with an emitting electrode of the triode Q4 and then grounded; the collector of the triode Q4 is connected with one end of the second contactor coil, the other end of the second contactor coil is connected with a +12V power supply, the anode of the diode V11 is connected with the collector of the triode Q4, and the cathode of the diode V11 is connected with the +12V power supply; one end of a normally open contact K2 of the second contactor is connected with an output zero line of the ultra-low temperature lithium battery (10), and the other end of the normally open contact K2 of the second contactor is connected with an input zero line of the bidirectional DC/DC module (11).
7. The automatic detection handheld starting device for ultralow temperature starting according to claim 4, wherein said lithium battery voltage sampling circuit comprises: the circuit comprises a resistor R3, a resistor R4, a resistor R9, a capacitor C9, a capacitor C10, a capacitor C12, a capacitor C13, a capacitor C14, an operational amplifier N2A, a diode V1, a diode V2, a voltage stabilizing diode V3, a third contactor coil and a third contactor normally-open contact K3; one end of the resistor R4 is connected with the positive phase input end of the operational amplifier N2A, the other end of the resistor R4 is connected with one end of a normally open contact K3 of the third contactor, the other end of the normally open contact K3 of the third contactor is connected with the cathode of the diode V2, and the anode of the diode V2 is used as a voltage sampling signal input end and is connected with the ultralow temperature lithium battery (10); the resistor R9 is connected with the capacitor C12 in parallel, one end of the resistor R9 is connected with the non-inverting input end of the operational amplifier N2A, and the other end of the resistor R9 is grounded; the anode of the voltage stabilizing diode V3 is grounded, and the cathode of the voltage stabilizing diode V3 is connected with the common connection point of the resistor R4 and the normally open contact K3 of the third contactor; the capacitor C13 is connected in parallel at two ends of the voltage-stabilizing diode V3; the positive power supply end of the operational amplifier N2A is connected with a +5V power supply, and the negative power supply end of the operational amplifier N2A is grounded; one end of the capacitor C14 is connected with the positive power end of the operational amplifier N2A, and the other end is grounded; the inverting input end of the operational amplifier N2A is connected to the output end of the operational amplifier N2A; one end of the resistor R3 is connected with the output end of the operational amplifier N2A, and the other end of the resistor R3 is used as the output end of the lithium battery voltage sampling circuit; one end of the capacitor C9 and the other end of the capacitor C10 are connected in parallel and then connected to the output end of the lithium battery voltage sampling circuit, and the other end of the capacitor C9 and the other end of the capacitor C10 are grounded; the output end of the lithium battery voltage sampling circuit is connected with a No. 35 pin of a main control chip (N1).
8. An automatic detection hand-held startup device suitable for ultralow temperature startup according to claim 4, characterized in that the energy storage assembly voltage sampling circuit comprises: a resistor R11, a resistor R12, a resistor R16, a capacitor C21, a capacitor C22, a capacitor C23, a capacitor C24, an operational amplifier N4B, a diode V4 and a zener diode V5; one end of the resistor R12 is connected with the positive phase input end of the operational amplifier N4B, the other end of the resistor R12 is connected with the cathode of the diode V4, and the anode of the diode V4 is connected between the Hall sensor HR1 and the direct current contactor K12 as the voltage sampling signal input end; the resistor R16 is connected with the capacitor C24 in parallel, one end of the resistor R16 is connected with the non-inverting input end of the operational amplifier N4B, and the other end of the resistor R16 is grounded; the anode of the voltage stabilizing diode V5 is grounded, and the cathode of the voltage stabilizing diode V5 is connected to the common connection point of the diode V4 and the resistor R12; the capacitor C23 is connected in parallel with two ends of the voltage-stabilizing diode V5; the inverting input end of the operational amplifier N4B is connected to the output end of the operational amplifier N4B; one end of the resistor R11 is connected with the output end of the operational amplifier N4B, and the other end of the resistor R11 is used as the output end of the energy storage component voltage sampling circuit; one end of the capacitor C21 and the other end of the capacitor C22 are connected in parallel and are connected with the output end of the energy storage component voltage sampling circuit, and the other end of the capacitor C21 and the other end of the capacitor C22 are grounded; the output end of the energy storage component voltage sampling circuit is connected with a pin # 34 of a main control chip (N1).
9. An automatic detection hand-held startup device for ultra-low temperature startup according to claim 4, characterized in that the external battery voltage sampling circuit comprises: a resistor R29, a resistor R32, a resistor R39, a capacitor C29, a capacitor C30, a capacitor C31, a capacitor C32, a capacitor C33, an operational amplifier N4A, a diode V7 and a voltage stabilizing diode V8; one end of the resistor R32 is connected with the positive phase input end of the operational amplifier N4A, the other end of the resistor R32 is connected with the cathode of the diode V7, and the anode of the diode V7 is connected with the output end of the handheld starting device as the voltage sampling signal input end; the resistor R39 is connected with the capacitor C31 in parallel, one end of the resistor R39 is connected with the non-inverting input end of the operational amplifier N4A, and the other end of the resistor R39 is grounded; the anode of the voltage stabilizing diode V8 is grounded, and the cathode of the voltage stabilizing diode V8 is connected to the common connection point of the diode V7 and the resistor R32; the capacitor C32 is connected in parallel with two ends of the voltage-stabilizing diode V8; the positive power supply end of the operational amplifier N4A is connected with the +5V power supply, and the negative power supply end of the operational amplifier N4A is grounded; one end of the capacitor C33 is connected with the positive power end of the operational amplifier N4A, and the other end is grounded; the inverting input end of the operational amplifier N4A is connected to the output end of the operational amplifier N4A; one end of the resistor R29 is connected with the output end of the operational amplifier N4A, and the other end of the resistor R29 is used as the output end of the external battery voltage sampling circuit; one end of the capacitor C29 and the other end of the capacitor C30 are connected in parallel and are connected with the output end of the external battery voltage sampling circuit, and the other end of the capacitor C29 and the other end of the capacitor C30 are grounded; the output end of the external battery voltage sampling circuit is connected with a # 33 pin of a main control chip (N1).
10. The automatic detection handheld starting device for ultralow temperature starting according to claim 4, wherein said main control chip (N1) is S9S12G48F0 MLF.
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| CN202110271666.0A CN113162139A (en) | 2021-03-12 | 2021-03-12 | Automatic detection handheld starting device suitable for ultralow temperature starting |
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| CN114142555A (en) * | 2021-11-17 | 2022-03-04 | 重庆大及电子科技有限公司 | Starting power supply |
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