CN112134348A - Emergency starting power supply - Google Patents
Emergency starting power supply Download PDFInfo
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- CN112134348A CN112134348A CN202011098911.4A CN202011098911A CN112134348A CN 112134348 A CN112134348 A CN 112134348A CN 202011098911 A CN202011098911 A CN 202011098911A CN 112134348 A CN112134348 A CN 112134348A
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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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
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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
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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]
- G01R31/392—Determining battery ageing or deterioration, e.g. state of health
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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
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0024—Parallel/serial switching of connection of batteries to charge or load circuit
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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
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/005—Detection of state of health [SOH]
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- Business, Economics & Management (AREA)
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract
The invention discloses an emergency starting power supply. This emergent start power includes: the system comprises a 12V/24V double-battery module, a 12V/24V automatic series-parallel switch module, a starting output and sampling module, a system power supply conversion control module, an MCU system detection control module, a battery test information acquisition module, a charging control module, a user operation and display module, a 12V/24V automatic series-parallel switch module, a system power supply conversion control module, a battery test information acquisition module, a charging control module and a user operation and display module which are electrically connected with the MCU system detection control module. The emergency starting power supply can detect whether the positive and negative polarities of the clamp connection are correct or not before starting the vehicle, detects the state of the automobile battery, and effectively protects the automobile battery when the vehicle is started in an emergency.
Description
Technical Field
The invention relates to a standby power supply, in particular to an emergency starting power supply.
Background
With the rapid development of the automobile industry, the automobile holding capacity of the world is continuously increased, the requirements of a large number of automobiles for after-sale maintenance, emergency rescue and the like are greatly increased day by day, and the requirements on after-sale services before and after sale are higher and higher. When the automobile battery is seriously insufficient or damaged due to short circuit, if the abnormality is not detected in advance and accurately eliminated, the emergency starting power supply is directly connected in parallel, so that the automobile is not started successfully, the energy of the emergency starting power supply battery is overdischarged, and even permanent damage is caused. Similarly, after the automobile is started successfully, if the automobile charging system is abnormal, the automobile battery is overcharged and dehydrated due to overhigh charging, and the polar plate is heated and aged, so that the automobile battery is directly damaged in severe cases. On the contrary, the charging voltage is too low, so that the automobile battery is in a half full-charge state or a power-loss state for a long time, and the battery can accelerate crystallization and aging of a battery pole plate even the service life of the battery is terminated if the battery is not normally fully charged and maintained for a long time.
In a whole automobile factory or an after-sales service repair shop and the like, the performance detection of the automobile battery, the automobile starting system detection and the automobile charging system detection cannot be kept every day. When meeting the circumstances such as road emergency rescue, need short-term test trouble car battery health to help the user to judge whether can directly parallelly connected supplementary start or need cut off the trouble battery, start with emergency starting power alone, this is all the prerequisite condition that is indispensable to car and corresponding emergency starting power supply unit itself, is the important guarantee that improves start-up rescue success rate.
Disclosure of Invention
The invention aims to provide an emergency starting power supply which can detect the performance of an automobile battery and display the detection result so as to ensure the correctness of a subsequent processing scheme, aiming at the defects in the prior art.
In order to achieve the purpose, the technical scheme of the emergency starting power supply is as follows:
an emergency start power supply comprising:
the 12V/24V double-battery module is used for starting a power supply and providing working power supply for each module;
the 12V/24V automatic series-parallel switch module is used for controlling the 12V or 24V voltage to be output outwards;
the output and sampling module is started and used for acquiring a clamp terminal voltage signal;
the system power supply conversion control module is used for realizing system working power supply switching and voltage conversion and providing a working power supply for the MCU and other circuits;
the MCU system detection control module is used for automatically detecting an automobile battery, an automobile starting system, an automobile charging system, a display and panel operation prompt instruction;
the battery test information acquisition module is used for automobile battery detection sampling, clip positive and negative connection information sampling, automobile battery temperature detection sampling and environment temperature detection sampling;
the charging control module is used for controlling and managing the charging of the internal battery by the external charger;
the user operation and display module is used for realizing man-machine information exchange;
the 12V/24V automatic series-parallel switch module, the system power supply conversion control module, the battery test information acquisition module, the charging control module and the user operation and display module are electrically connected with the MCU system detection control module;
the 12V/24V automatic series-parallel switch module, the system power supply conversion control module and the charging control module are electrically connected with the 12V/24V double-battery module;
the 12V/24V automatic series-parallel connection switch module and the battery test information acquisition module are electrically connected with the start output sampling module.
The test result printing output module is used for printing output of the test information of the automobile battery, and the test result printing output module is electrically connected with the battery test information acquisition module and the MCU system detection control module.
After the clamp is connected to the automobile battery, the power-on work is automatically triggered, the battery test information acquisition module automatically detects whether the positive and negative polarities of the clamp connection are correct and the health state of the automobile battery, if the electrodes are reversely connected, a connection error is prompted, the connection is reconnected, if the electrodes are correctly connected, the battery test information acquisition module is in information interaction with the MCU system detection control module, the output and sampling module is started, and the detection result of the battery is displayed through the user operation and display module; when the automobile battery has serious power shortage or is abnormal, the parallel output is automatically stopped, the user operation and display module sends out a corresponding operation prompt to ask a user to remove the fault or disconnect the fault battery, and then the automobile is powered on and started; when the detection result of the automobile battery is abnormal, the MCU system detection control module automatically controls the 12V/24V automatic series-parallel switch module according to the voltage of the automobile battery, and outputs the voltage matched with the automobile battery to the automobile by utilizing the 12V/24V double-battery module.
After the positive clamp and the negative clamp are connected to the positive and negative electrodes of the automobile battery, the automobile starting system is detected through the operation of a human-computer interaction interface, when the automobile is started, the clamp end information acquisition module acquires the voltage and the starting time of the automobile starting process in real time, and the system automatically judges whether the automobile starting system is normal according to the automobile starting standard voltage range and displays the detection result to a user.
After the automobile is started successfully, the system automatically detects the automobile charging system, a user can also select to detect the automobile charging system through a display and panel operation prompt instruction, the rotating speed of an engine is kept above 2000 revolutions for 15 seconds in the test process, the user can also finish the detection of the automobile charging system according to the prompt, the judgment is carried out according to the standards of the real-time voltage state, ripple waves and the like of the automobile charging system, and the detection result is displayed to the user after the test is finished.
And the MCU system detection control module controls the test result printout module to printout the battery detection result.
The battery testing system also comprises a network transmission module which transmits the battery information detected by the battery testing information acquisition module to a network to realize remote display.
The 12V/24V double-battery module comprises two groups of independent 12V battery packs, and the two groups of independent 12V battery packs are connected with the 12V/24V automatic series-parallel switch module to realize automatic series connection or parallel connection of the two groups of 12V battery packs.
The two groups of independent 12V battery packs are respectively a first battery pack BAT1 and a second battery pack BAT2, a normally open electromagnetic switch JK1 is arranged between the positive electrode of a first battery pack BAT1 and the positive electrode of the second battery pack BAT2, a normally open electromagnetic switch JK3 is arranged between the negative electrode of a first battery pack BAT1 and the negative electrode of a second battery pack BAT2, a normally open electromagnetic switch JK2 is arranged between the positive electrode of the first battery pack BAT1 and the negative electrode of the second battery pack BAT2, the positive electrode of the second battery pack BAT2 outputs a positive electrode OUT + outwards, the negative electrode of the first battery pack BAT1 is grounded, and the electromagnetic switch JK1, the electromagnetic switch JK2 and the electromagnetic switch JK3 are connected with a relay control circuit which is controlled by an MCU system detection control module; when a 12V automobile needs to be started, the electromagnetic switch JK1 and the electromagnetic switch JK3 are attracted and conducted, and meanwhile, the electromagnetic switch JK2 is kept disconnected; when the 24V automobile needs to be started, the electromagnetic switch JK2 is pulled in and switched on, and meanwhile, the electromagnetic switch JK1 and the electromagnetic switch JK3 are kept disconnected, so that the two groups of batteries are connected in series to be switched on and output 24V voltage.
The starting output and sampling module comprises an anode clamp and a cathode clamp, the anode clamp is connected with b + of the battery test information acquisition module through a lead, the cathode clamp is connected with b-of the battery test information acquisition module, the anode clamp is connected with an external output anode OUT +, and the cathode clamp is connected with a cathode of a first battery pack BAT 1; when the positive clamp and the negative clamp are connected to an automobile battery, voltage signals of the automobile battery are collected from the two clamps, a 12V/24V double-battery module is triggered by outputting positive OUT + outwards, each module is electrified, voltages at two ends of the positive pole and the negative pole of the automobile battery are collected through b +/b-and are sent to a battery test information collection module, and the voltages are converted into three paths of voltage signals with different proportions and are sent to an MCU system detection control module for processing.
Compared with the prior art, the invention has the following advantages:
the emergency starting power supply can quickly detect the performance and the health state of the automobile battery, and automatically detect the health state of the automobile battery after the clamp is connected to the automobile battery in emergency recourse and timely transmit a test result to a user;
the emergency starting power supply realizes interconnection and intercommunication of emergency starting recourse and automobile battery health state detection, can quickly remove a fault battery, assists a user in correctly using a starting connection mode, and improves the success rate of starting rescue;
when the emergency starting power supply is used for emergency starting rescue operation, the health state of an automobile battery is automatically detected, a user is prompted to correctly use the emergency starting power supply according to the health state of the automobile battery, when the automobile battery is abnormal, the 12V/24V automatic series-parallel connection switch module is automatically controlled to work according to the voltage of the automobile battery, the 12V/24V double-battery module outputs the voltage matched with the automobile battery to the automobile, when the automobile battery is seriously damaged or is in power shortage, the automatic output is stopped, the user is required to remove the fault and then use the automobile battery, the safety of equipment can be guaranteed, and the service life of the equipment can be prolonged;
the MCU system detection control module has the functions of automatically storing and protecting use data and automobile battery detection data and data such as starting and charging, the user operation and display module is compatible with user information input record and writing, and the functions of data export, test result printing and the like are supported;
the battery health state detection function of the emergency starting power supply comprises common battery detection, winding type AGM battery detection, flat type AGM battery detection, GEL battery detection and EFB battery detection, supports multi-country language conversion and supports selection of different battery standards;
the emergency starting power supply integrates battery detection, automobile starting system detection, automobile charging system detection and emergency starting power supply, and has the functions of reverse connection protection, misconnection protection, over-temperature protection, overcharge protection, over-discharge protection, overtime protection, starting surge protection, output short circuit protection and the like;
the emergency starting power supply is internally provided with a high-power double battery pack, a large-current switch, a battery performance health detection device and user operation information acquisition device are intelligently switched, the automobile can be automatically judged to belong to a 12V automobile or a 24V automobile according to user operation or automobile battery voltage information, and the internal high-power switch can be automatically switched to work according to a judgment result, so that the power supply output voltage is matched with the automobile battery voltage, and the user can be assisted to quickly and successfully start the automobile.
Drawings
Fig. 1 is an electrical schematic block diagram of an emergency starting power supply.
FIG. 2 is a schematic diagram of a 12V/24V bi-cell module.
FIG. 3 is a schematic diagram of a 12V/24V automatic series-parallel switch module.
FIG. 4 is a schematic diagram of the start-up output and sampling module.
FIG. 5 is a schematic diagram of a system power conversion control module.
FIG. 6 is a schematic diagram of an MCU system detection control module.
Fig. 7 is a schematic diagram of a battery test information collection module.
Fig. 8 is a schematic diagram of a charging control module.
FIG. 9 is a schematic diagram of a user operation and display module.
FIG. 10 is a block diagram of a test result printout module.
Detailed Description
The present invention is further illustrated by the following description in conjunction with the accompanying drawings, which are to be construed as merely illustrative and not limitative of the remainder of the disclosure, and on reading the disclosure, various equivalent modifications thereof will become apparent to those skilled in the art and fall within the limits of the appended claims.
As shown in fig. 1, an emergency start power supply includes:
the 12V/24V double-battery module is used for emergency starting of a power supply and providing a working power supply for the control circuit;
the 12V/24V automatic series-parallel switch module is used for controlling the 12V or 24V voltage to be output outwards;
the output and sampling module is started and used for acquiring a clamp terminal voltage signal;
the system power supply conversion control module is used for realizing system working power supply switching and voltage conversion and providing a working power supply for the MCU and other circuits;
the MCU system detection control module is used for automatically detecting an automobile battery, an automobile starting system, an automobile charging system, a display and panel operation prompt instruction;
the battery test information acquisition module is used for battery detection sampling, clip positive and negative connection information sampling, battery temperature detection sampling and environment temperature detection sampling;
the charging control module is used for controlling and managing the charging of the internal battery by the external charger;
the user operation and display module is used for realizing man-machine information exchange;
the test result printout module is used for battery test, automobile starting or charging system information printout, and is electrically connected with the battery test information acquisition module and the MCU system detection control module; and the MCU system detection control module controls the test result printout module to printout the battery detection result.
The 12V/24V automatic series-parallel switch module, the system power supply conversion control module, the battery test information acquisition module, the charging control module and the user operation and display module are electrically connected with the MCU system detection control module;
the 12V/24V automatic series-parallel switch module, the system power supply conversion control module and the charging control module are electrically connected with the 12V/24V double-battery module;
the 12V/24V automatic series-parallel connection switch module and the battery test information acquisition module are electrically connected with the start output sampling module.
After the clamp is connected to the automobile battery, the power-on work is automatically triggered, the battery test information acquisition module automatically detects whether the positive and negative polarities of the clamp connection are correct and the health state of the automobile battery, if the electrodes are reversely connected, a connection error is prompted, the connection is reconnected, if the electrodes are correctly connected, the battery test information acquisition module is in information interaction with the MCU system detection control module, the output and sampling module is started, and the detection result of the battery is displayed through the user operation and display module; when the automobile battery has serious power shortage or is abnormal, the parallel output is automatically stopped, the user operation and display module sends out a corresponding operation prompt to ask a user to remove the fault or disconnect the fault battery, and then the automobile is powered on and started; when the detection result of the automobile battery is abnormal, the MCU system detection control module automatically controls the 12V/24V automatic series-parallel switch module according to the voltage of the automobile battery, and outputs the voltage matched with the automobile battery to the automobile by utilizing the 12V/24V double-battery module. The automobile starting system detection and the automobile charging system detection are carried out, after the positive clamp and the negative clamp are connected to the positive clamp and the negative clamp of an automobile battery, the automobile starting system detection function mode is entered through the operation of a human-computer interaction interface, when the automobile is started, the clamp end information acquisition module acquires the voltage and the starting time of the automobile starting process in real time, and the system automatically judges whether the automobile starting system is normal according to the automobile starting standard voltage range and provides the detection result for a user. When the automobile is started successfully, the system automatically enters the automobile charging system for detection, a user can also select to detect the automobile charging system by operating a key, and the rotating speed of the engine is kept above 2000 revolutions for 15 seconds in the test process. The user can also finish the detection of the automobile charging system according to the prompt, judge according to the standards of the voltage real-time state, ripple waves and the like of the automobile charging system, automatically display the test result after the test is finished, and print or export the test data.
As shown in fig. 2, the 12V/24V bi-battery module includes two independent 12V battery packs, the two independent 12V battery packs are a first battery pack BAT1 and a second battery pack BAT2, respectively, and the two independent 12V battery packs are connected to the 12V/24V automatic series-parallel switch module to realize automatic series connection or parallel connection of the two 12V battery packs.
As shown in fig. 3, the 12V/24V automatic series-parallel switch module is provided with a normally open electromagnetic switch JK1 between the positive electrode of the first battery pack BAT1 and the positive electrode of the second battery pack BAT2, a normally open electromagnetic switch JK3 between the negative electrode of the first battery pack BAT1 and the negative electrode of the second battery pack BAT2, a normally open electromagnetic switch JK2 between the positive electrode of the first battery pack BAT1 and the negative electrode of the second battery pack BAT2, a positive electrode of the second battery pack BAT2 is an externally output positive electrode OUT +, a negative electrode of the first battery pack BAT1 is grounded, and the electromagnetic switch JK1, the electromagnetic switch JK2 and the electromagnetic switch JK3 are connected with a relay control circuit controlled by the MCU system detection control module; the electromagnetic switch JK1, the electromagnetic switch JK2 and the electromagnetic switch JK3 are all high-power relays, a relay control circuit is uniformly controlled by the MCU, when a 12V automobile needs to be started, the electromagnetic switch JK1 and the electromagnetic switch JK3 are attracted and conducted, and meanwhile, the electromagnetic switch JK2 is kept disconnected; when the 24V automobile needs to be started, the electromagnetic switch JK2 is pulled in and switched on, and meanwhile, the electromagnetic switch JK1 and the electromagnetic switch JK3 are kept disconnected, so that the two groups of batteries are connected in series to be switched on and output 24V voltage.
As shown in fig. 4, the start-up output and sampling module includes an anode clamp and a cathode clamp, the clamps include an anode clamp and a cathode clamp, the anode clamp is connected with b + of the battery test information acquisition module through a wire, the cathode clamp is connected with b-of the battery test information acquisition module, the anode clamp is connected with an external output anode OUT +, and the cathode clamp is connected with a cathode of the first battery pack BAT 1; when the positive clamp and the negative clamp are connected to an automobile battery, voltage signals of the automobile battery are collected from the two clamps, a 12V/24V double-battery module is triggered by outputting positive OUT +, each module is electrified, voltages at two ends of the positive pole and the negative pole of the automobile battery are collected through b +/b-and are sent to a battery test information collection module, and the voltage signals are converted into three voltage signals with different proportions through an integrated operational amplifier U2 and are sent to an MCU system detection control module for processing.
As shown in fig. 5, the system power supply switching control module is configured to switch from the positive terminal of the first battery pack BAT1 to the emitter of the transistor Q1 through the diode D3, and to the base of the transistor Q1 through the resistor R1 and the resistor R6. When the clamp is connected to the positive pole and the negative pole of the automobile battery, the positive voltage on the automobile battery is externally output to the positive pole OUT + to the diode D6 and the resistor R2 to drive the triode Q2 to be conducted, the base electrode potential of the triode Q1 is pulled down after the triode Q2 is conducted, the triode Q1 is biased to be conducted, and the voltage reaches the integrated three-terminal voltage stabilizing chip IC2 and U1 through the triode Q1, and then the 12V direct-current voltage of the positive pole of the first battery pack BAT1 of the battery is converted into 5VDC and 3.3VDC to provide a working power supply.
When the MCU system detection control module detects that a user needs to print test information, the 41 th pin of the MCU system detection control module outputs a main level, the enabling end of a power conversion chip IC3 is triggered through a resistor R24, the power conversion chip IC3 works normally, a power supply VD outputs a stable 7V voltage VH after being filtered through the power conversion chip IC3, a voltage reduction inductor L1, a capacitor C27 and a capacitor C26, and a stable working power supply is provided for a printer of the test result printout module. The capacitors C14 and C15 are input filter capacitors, the resistor R25 is a current-limiting control resistor of the power conversion chip IC3, the diode D11 is a freewheeling diode, and the resistors R38 and R39 are output voltage division sampling circuits, and output voltage signals are fed back to an FB pin of the power conversion chip IC3 in real time.
As shown in fig. 6, the MCU system detection control module includes a 32-bit MCU, which mainly performs information processing, operation, judgment and information instruction output.
As shown in fig. 7, the battery test information collecting module includes a battery test information collecting circuit and a clip reverse connection test information collecting circuit. When the battery detection information acquisition circuit detects the health state of the automobile battery, the MCU sends an instruction to drive the field effect tube Q7 to be conducted to detect the discharge of the automobile battery, and the voltage of the anode of the automobile battery is conducted to the cathode of the automobile battery through the anode OUT +, the diode D10 and the current-limiting resistor R41 which are output outwards and then conducted by the D pole and the S pole of the field effect tube Q7. Meanwhile, the voltage drop generated by the MCU reading current-limiting resistor R41 is collected after passing through the resistors R40 and R42 and the capacitor C28, and an AD LOAD signal is sent to the 17 th pin of the MCU. In the discharging process, the battery detection information acquisition circuit is used for acquiring the terminal voltage of the automobile battery from the clamp by b +/b-and then transmitting the terminal voltage of the automobile battery to a No. 2 pin and a No. 3 pin of the integrated operational amplifier U2 through resistors R12 and R13 after being isolated and coupled, the No. 1 pin of the integrated operational amplifier U2 outputs a first group of signals CCA1 to a No. 14 pin of the MCU, and the peripheral resistors R10, R11, R14 and R31 are used as feedback loops. Meanwhile, the output signal of the 1 st pin of the integrated operational amplifier U2 is sent to the 6 th pin of the integrated operational amplifier U2 through the R29 to form an inverse arithmetic unit with the resistor R28, and the 7 th pin of the integrated operational amplifier U2 outputs a second group of signals CCA2 to the 15 th pin of the MCU. Meanwhile, the output of the 7 th pin of the integrated operational amplifier U2 is connected to the 9 th pin of the integrated operational amplifier U2 through a resistor R30, and forms a direction ratio operation circuit with the 10 th pin of the integrated operational amplifier U2, and the integrated operational amplifier U2 outputs a third group of signals to the 16 th pin of the MCU through the 8 th pin. And after comprehensive operation is carried out by combining the battery temperature and the environment temperature, the health state and other parameters of the automobile battery are obtained.
When the clamp is connected with the automobile battery carelessly to cause the connection of the positive polarity and the negative polarity, at the moment, the signal of the positive electrode of the automobile battery connected with the negative electrode clamp passes through the 1 st pin of the diode D4 and the IC1 to the 2 nd pin of the IC1 and returns to the negative electrode of the automobile battery through the resistor R8, after the IC1 works, the signal is subjected to photoelectric isolation and transmission and then directly drives the three tube plates of the IC1 to be conducted, so that the voltage of the positive electrode of the VD1 passes through the 4 th pin to the 3 th pin of the IC1 and then is subjected to voltage division acquisition by the R4, the R9 and the C4, and the reverse connection signal is sent to the 39 pin of the MCU for. Meanwhile, the pin 3 signal of the IC1 is sent to the system power conversion control module (see fig. 5) circuit through another path D4, and drives the power control transistors Q1 and Q2 to be turned on, so as to wake up the whole system to be powered on normally.
In the battery test information acquisition module, R5, RT1 and C3 form internal battery pack temperature information acquisition, R34 and RT2 form environment temperature information acquisition, R45, R47 and C17 form internal first battery pack BAT1 power supply voltage information acquisition, R44, R48 and C29 form clip end external automobile battery voltage information acquisition, and all acquired signals are sent to the MCU for unified processing.
As shown in fig. 8, the charging control module includes a charging interface S2, a pin 1 divides the charging voltage into two paths, one path is connected to a voltage dividing circuit formed by R43, R46 and C5, collects the charging input signal and sends the signal to a pin 53 of the MCU for processing. The other path is connected to Q8, R57 and Q3 to form a charging switch circuit, when the MCU detects that charging information is accessed, the 9 th pin of the MCU outputs high level to trigger and open triodes Q3 and Q4 through R22 and R58, Q3 is conducted to bias and conduct Q8 to work, charging current flows through D2 and JK4 to the two ends of the anode and the cathode of the first battery pack BAT1, meanwhile, the triode Q4 is conducted to enable the subsequent electric appliance JK4 to work, the anode and the cathode of the second battery pack BAT2 are automatically connected to a charging port in parallel, and simultaneous charging is achieved.
As shown in fig. 9, the user operation and display module includes an LCD screen J1, a clock chip U3, an LED indicator light and a key switch circuit, the LCD mainly displays an operation interface and displays test parameters and test results, and the clock chip U3 mainly provides time auto-calibration for the MCU, so as to ensure that all operation information and display information have time to be recorded. The LED1 is a system working power supply indicator, the LED2 is a warning prompt when the temperature of the temperature cell is too high or too low, the LED3 is a battery power and charging power indication, and the LED4 is a warning prompt when the reverse voltage of the clamp is wrong. SW1-SW6 constitute switch key circuits for power, up, down, return, confirm, print, etc., wherein SW1, SW4, SW5 simultaneously turn on the system power switch and send all operation information to the MUC for recognition processing.
As shown in FIG. 10, the test result printout module includes a thermal printer J2 and a print driver U5, the U6 and the USB1 constitute a test result electronic data information output, and the U7 is a test result data storage, and can record all recent test records of a client, so that the user can conveniently look up or export the test records at any time.
The invention can also be provided with a network transmission module, and the battery information detected by the battery test information acquisition module is transmitted to the network cable, so that remote display is realized, remote guidance operation is facilitated, and faults are solved.
The emergency starting power supply has a battery testing function, combines a conventional multifunctional emergency starting power supply and a digital multifunctional detector into a whole, realizes interconnection and intercommunication of starting operation information and battery detection information, collects and manages all data information uniformly, and facilitates checking of a user at any time. The abnormal detection of the automobile starting system and the abnormal detection of the automobile charging system can timely judge and inform a user when the automobile battery or the starting system has an abnormal fault, and is necessary to protect the emergency starting power supply system, so that the starting failure caused by the automobile fault or the battery fault and the like can be effectively prevented, the success rate of rescue is ensured, the service quality is improved, the service life of equipment is prolonged, and one-stop service is provided for the user to ask for help and the inspection and the overhaul of the automobile battery.
The emergency starting power supply provides a series of safe operation schemes for daily maintenance, starting rescue and the like of the automobile battery, when a user connects the clip for starting output to the automobile battery, the power-on work is automatically triggered, and whether the positive polarity and the negative polarity of the connection of the clip are correct or not is detected. When the automobile battery is correctly connected to the automobile battery, the automobile battery is detected, a user can input relevant information of the battery according to a prompt, the emergency starting power supply automatically detects the health state of the automobile battery, and a test result can be automatically stored or printed and can also be exported. When a user needs to start the automobile, the emergency starting power supply prompts the user whether the user can be directly connected in parallel or not according to the automobile battery test result, if the automobile battery is seriously insufficient or abnormal, the emergency starting power supply stops automatic parallel output and sends out a corresponding operation prompt, and the user is required to remove a fault or disconnect the fault battery and then starts the automobile through forced starting output. Therefore, the over-discharge loss of the emergency starting power supply caused by the fault of the automobile battery can be avoided, the service life of the emergency starting power supply is prolonged, and the success rate of emergency rescue is also improved.
Claims (9)
1. An emergency start power supply, comprising:
the 12V/24V double-battery module is used for starting a power supply and providing working power supply for each module;
the 12V/24V automatic series-parallel switch module is used for controlling the 12V or 24V voltage to be output outwards;
the output and sampling module is started and used for acquiring a clamp terminal voltage signal;
the system power supply conversion control module is used for realizing the switching of a working power supply and the voltage conversion and providing a working power supply for the MCU and other modules;
the MCU system detection control module is used for automatically detecting an automobile battery, an automobile starting system, an automobile charging system, a display and panel operation prompt instruction;
the battery test information acquisition module is used for automobile battery detection sampling, clip positive and negative connection information sampling, automobile battery temperature detection sampling and environment temperature detection sampling;
the charging control module is used for controlling and managing the charging of the internal battery by the external charger;
the user operation and display module is used for realizing man-machine information exchange;
the 12V/24V automatic series-parallel switch module, the system power supply conversion control module, the battery test information acquisition module, the charging control module and the user operation and display module are electrically connected with the MCU system detection control module;
the 12V/24V automatic series-parallel switch module, the system power supply conversion control module and the charging control module are electrically connected with the 12V/24V double-battery module;
the 12V/24V automatic series-parallel connection switch module and the battery test information acquisition module are electrically connected with the start output sampling module.
2. The emergency starting power supply according to claim 1, further comprising a test result printout module for printout of vehicle battery test information, wherein the test result printout module is electrically connected to the battery test information acquisition module and the MCU system detection control module.
3. The emergency starting power supply of claim 1, wherein: after the clamp is connected to the automobile battery, the power-on work is automatically triggered, the battery test information acquisition module automatically detects whether the positive and negative polarities of the clamp connection are correct and the health state of the automobile battery, if the electrodes are reversely connected, a connection error is prompted, the connection is reconnected, if the electrodes are correctly connected, the battery test information acquisition module is in information interaction with the MCU system detection control module, the output and sampling module is started, and the detection result of the battery is displayed through the user operation and display module; when the automobile battery has serious power shortage or is abnormal, the parallel output is automatically stopped, the user operation and display module sends out a corresponding operation prompt to ask a user to remove the fault or disconnect the fault battery, and then the automobile is powered on and started; when the detection result of the automobile battery is abnormal, the MCU system detection control module automatically controls the 12V/24V automatic series-parallel switch module according to the voltage of the automobile battery, and outputs the voltage matched with the automobile battery to the automobile by utilizing the 12V/24V double-battery module.
4. The emergency starting power supply of claim 1, wherein: after the positive clamp and the negative clamp are connected to the positive and negative electrodes of the automobile battery, the automobile starting system is detected through the operation of a human-computer interaction interface, when the automobile is started, the clamp end information acquisition module acquires the voltage and the starting time of the automobile starting process in real time, and the system automatically judges whether the automobile starting system is normal according to the automobile starting standard voltage range and displays the detection result to a user.
5. The emergency starting power supply of claim 1, wherein: after the automobile is started successfully, the system automatically detects the automobile charging system, a user can also select to detect the automobile charging system through a display and panel operation prompt instruction, the rotating speed of an engine is kept above 2000 revolutions for 15 seconds in the test process, the user can also finish the detection of the automobile charging system according to the prompt, the judgment is carried out according to the standards of the real-time voltage state, ripple waves and the like of the automobile charging system, and the detection result is displayed to the user after the test is finished.
6. The emergency starting power supply of claim 2, wherein: and the MCU system detection control module controls the test result printout module to printout the battery detection result.
7. The emergency starting power supply of claim 1, wherein: the 12V/24V double-battery module comprises two groups of independent 12V battery packs, and the two groups of independent 12V battery packs are connected with the 12V/24V automatic series-parallel switch module to realize automatic series connection or parallel connection of the two groups of 12V battery packs.
8. The emergency starting power supply of claim 7, wherein: the two groups of independent 12V battery packs are respectively a first battery pack BAT1 and a second battery pack BAT2, a normally open electromagnetic switch JK1 is arranged between the positive electrode of a first battery pack BAT1 and the positive electrode of the second battery pack BAT2, a normally open electromagnetic switch JK3 is arranged between the negative electrode of a first battery pack BAT1 and the negative electrode of a second battery pack BAT2, a normally open electromagnetic switch JK2 is arranged between the positive electrode of the first battery pack BAT1 and the negative electrode of the second battery pack BAT2, the positive electrode of the second battery pack BAT2 outputs a positive electrode OUT + outwards, the negative electrode of the first battery pack BAT1 is grounded, and the electromagnetic switch JK1, the electromagnetic switch JK2 and the electromagnetic switch JK3 are connected with a relay control circuit which is controlled by an MCU system detection control module; when a 12V automobile needs to be started, the electromagnetic switch JK1 and the electromagnetic switch JK3 are attracted and conducted, and meanwhile, the electromagnetic switch JK2 is kept disconnected; when the 24V automobile needs to be started, the electromagnetic switch JK2 is pulled in and switched on, and meanwhile, the electromagnetic switch JK1 and the electromagnetic switch JK3 are kept disconnected, so that the two groups of batteries are connected in series to be switched on and output 24V voltage.
9. The emergency starting power supply of claim 8, wherein: the starting output and sampling module comprises an anode clamp and a cathode clamp, the anode clamp is connected with b + of the battery test information acquisition module through a lead, the cathode clamp is connected with b-of the battery test information acquisition module, the anode clamp is connected with an external output anode OUT +, and the cathode clamp is connected with a cathode of a first battery pack BAT 1; when the positive clamp and the negative clamp are connected to an automobile battery, voltage signals of the automobile battery are collected from the two clamps, a 12V/24V double-battery module is triggered by outputting positive OUT + outwards, each module is electrified, voltages at two ends of the positive pole and the negative pole of the automobile battery are collected through b +/b-and are sent to a battery test information collection module, and the voltages are converted into three paths of voltage signals with different proportions and are sent to an MCU system detection control module for processing.
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| CN112977304A (en) * | 2021-02-04 | 2021-06-18 | 湖南联科科技有限公司 | Detection control circuit device for detecting emergency starting of automobile to be detected |
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| CN117595459A (en) * | 2024-01-17 | 2024-02-23 | 深圳市南霸科技有限公司 | Output voltage switching system and emergency starting power supply |
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