CN219999077U - Lithium battery activation circuit and activation instrument - Google Patents
Lithium battery activation circuit and activation instrument Download PDFInfo
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- CN219999077U CN219999077U CN202321475041.7U CN202321475041U CN219999077U CN 219999077 U CN219999077 U CN 219999077U CN 202321475041 U CN202321475041 U CN 202321475041U CN 219999077 U CN219999077 U CN 219999077U
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- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 99
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 97
- 230000004913 activation Effects 0.000 title claims abstract description 60
- 238000012545 processing Methods 0.000 claims abstract description 51
- 238000006243 chemical reaction Methods 0.000 claims abstract description 22
- 230000003213 activating effect Effects 0.000 claims abstract description 10
- 239000003990 capacitor Substances 0.000 claims description 33
- 238000004891 communication Methods 0.000 claims description 21
- 230000000087 stabilizing effect Effects 0.000 claims description 21
- 238000005070 sampling Methods 0.000 claims description 18
- 238000013461 design Methods 0.000 claims description 12
- 239000012190 activator Substances 0.000 claims description 10
- 230000020411 cell activation Effects 0.000 claims 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 20
- 238000010586 diagram Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 3
- 101100156949 Arabidopsis thaliana XRN4 gene Proteins 0.000 description 1
- 101100215777 Schizosaccharomyces pombe (strain 972 / ATCC 24843) ain1 gene Proteins 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The utility model discloses a lithium battery activation circuit and an activation instrument, which comprise an activation battery signal module and a power supply battery pack; the lithium battery connecting end of the active battery signal module is used for connecting a battery to be activated, the driving end of the active battery signal module is connected with a microprocessor through an active driving module, the active battery signal module is connected with a signal processing module, and the signal processing module is connected with the microprocessor through an AD signal conversion module; the power supply battery pack supplies power to the microprocessor, the battery activating signal module, the driving activating module, the AD signal converting module and the signal processing module through the power supply module. The beneficial effects are that: the circuit layout is ingenious and simple, the whole volume is small, the weight is light, and the portable electronic device is convenient to carry.
Description
Technical Field
The utility model belongs to the technical field of lithium battery activation, and particularly relates to a lithium battery activation circuit and an activation instrument.
Background
The main purpose of lithium battery activation is to detect whether the battery tested meets the technical requirements. In the prior art, the lithium battery activation detection equipment generally adopts the combination of an industrial personal computer and a sampling circuit to detect and activate, and because the industrial personal computer has a huge structure and comprises a display screen and the like, the integrated design is difficult to carry out, so that the activation detection equipment has a complex structure, a plurality of parts and is inconvenient to carry. In the process of detecting the lithium battery, the detection equipment is required to be brought to the lithium battery accessory for detection, and because the equipment is huge in size, the load of the tester in carrying and using is large, and the portable transfer is not facilitated.
In response to the above drawbacks, a miniaturized lithium battery activation detection system has been proposed by the skilled person, for example, the patent 2020221205587-lithium battery activation detection system. The analysis shows that the activation detection system is suitable for simultaneous activation detection of multiple batteries, has higher working power, works in a mode of an external power supply adopted by a system power supply, and is suitable for a large number of lithium battery activation detection workshops and the like; because of high workload and high power, the components such as a radiator, a fan and the like are specially designed to radiate heat; in addition, a keyboard, a touch screen and the like are also arranged, so that the whole volume of the activation detection system is large, the portable detection system is not portable, and the equipment is relatively high in cost for detecting the use scene with small activation demand. Because of the large volume and weight, the burden of carrying and using the system is too large for the external security service tester.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model aims to solve the technical problems that: how to provide a lithium battery activation circuit and an activation instrument to meet the requirements of a small amount of lithium batteries in an activation scene, a miniaturized activation device is designed, and convenience in carrying and transferring of service personnel is guaranteed.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the key technology of the lithium battery activation circuit is as follows: the system comprises an activated battery signal module and a power supply battery pack;
the lithium battery connecting end of the active battery signal module is used for connecting a battery to be activated, the driving end of the active battery signal module is connected with an active driving module, the active driving module is connected with a microprocessor, the battery signal sampling output end of the active battery signal module is connected with a signal processing module, the signal output end of the signal processing module is connected with an AD signal conversion module, and the digital output end of the AD signal conversion module is connected with the microprocessor;
the power supply battery pack supplies power to the microprocessor, the battery activating signal module, the driving activating module, the AD signal converting module and the signal processing module through the power supply module.
Through the design, the combined active battery signal module is used for connecting the lithium battery, the combined active driving module is used for acquiring the voltage conditions of the lithium battery when the lithium battery is unloaded and loaded, and the combined signal processing module and the AD signal conversion module are used for feeding back the voltage conditions to the microprocessor, so that the lithium battery is tested or activated. The rechargeable power supply battery pack is used for supplying power, and no additional power supply is needed to be connected, so that the device is suitable for various working scenes.
Preferably, M paths of active battery signal circuits are arranged in the active battery signal module, and the internal connection structure of each path of active battery signal circuit is consistent; m is an integer greater than or equal to 1;
the active battery signal circuit comprises a first relay and a second relay; one ends of coils of the first relay and the second relay are connected with a second power supply output end of the power supply module, and the other ends of coils of the two relays are respectively connected with two driving ends OUT of the activation driving module in a one-to-one correspondence manner; the two ends of the first relay are connected with a diode D12 in parallel, the two ends of the coil of the second relay are connected with a diode D13 in parallel, the cathodes of the two diodes are connected with the second power supply output end, and the anodes of the two diodes are correspondingly connected with the two driving ends OUT one by one;
one end of a first normally open switch of the first relay is used as a positive electrode connecting end of the lithium battery and used for connecting the positive electrode of the lithium battery, and the other end of the first normally open switch is used as a battery signal sampling output end of the active battery signal circuit and used for being connected with a signal source input end of the signal processing module; one end of a first normally open switch of the first relay is used as a negative electrode connecting end of the lithium battery and is used for connecting the negative electrode of the lithium battery, and the other end of the first normally open switch is grounded;
and one end of a first normally open switch of the second relay is used as a positive electrode connecting end of the lithium battery and is used for connecting the positive electrode of the lithium battery, one end of the second normally open switch of the second relay is used as a negative electrode connecting end of the lithium battery and is used for connecting the negative electrode of the lithium battery, and the other end of the first normally open switch of the second relay is connected with the other end of the second normally open switch of the second relay through a load R9.
By adopting the scheme, when no-load detection is carried out on the lithium battery, the first relay coil is connected, the second relay coil is not connected, and the two normally open switches of the first relay are closed. At this time, the voltage condition of the lithium battery in the no-load state is detected.
When the load of the lithium battery is detected, the first relay coil and the second relay coil are connected, the lithium battery discharges the load R9, and meanwhile, the voltage condition of the lithium battery in a load state is fed back to the microprocessor through the battery signal sampling output end.
When the lithium battery is activated, the first relay coil is not connected, but the second relay coil is connected, at the moment, the lithium battery discharges the load R9, activation is realized, and after the activation is finished, load detection is carried out until the voltage condition meets the requirement.
Preferably, the signal processing module is internally provided with M paths of signal processing circuits, and each path of signal processing circuit has a consistent structure; m is an integer greater than or equal to 1;
the signal processing circuit comprises a first transport amplifier and a second transport amplifier; the first transport amplifier and the second transport amplifier are connected with a third power supply output end of the power supply module;
the positive input end of the first transport amplifier is respectively grounded through a resistor R13 and a capacitor C17, the positive input end of the first transport amplifier is connected with one end of a resistor R11, and the other end of the resistor R11 is used as a signal source input end of a signal processing module and is connected with a battery signal sampling output end of the active battery signal module; the output end of the first transport amplifier is connected with the inverting input end of the first transport amplifier, the output end of the first transport amplifier is also connected with the normal phase input end of the second transport amplifier through a resistor R10, the normal phase input end of the second transport amplifier is respectively grounded through a resistor R12 and a capacitor C15, the resistance values of the resistor R10 and the resistor R12 are equal, the output end of the second transport amplifier is connected with the inverting input end of the second transport amplifier through a resistor R8, the output end of the second transport amplifier is grounded through a capacitor C16, and the output end of the second transport amplifier is used as the signal processing output end of the signal processing module and is used for being connected with the analog signal sampling end of the AD signal conversion module.
By adopting the circuit, the resistor R11 and the resistor R13 divide the input voltage signal to realize voltage protection of the first transport amplifier, the first transport amplifier outputs 12V voltage, after voltage division is carried out through the resistor R10 and the resistor R12 with equal resistance values, 6V voltage signals are transmitted to the second transport amplifier, and the voltage regulation circuit formed by combining the second transport amplifier and the resistor R8 ensures that the output voltage of the second transport amplifier does not exceed 5.5V, and the AD sampling range is ensured to be 0-5.5V.
Preferably, the power module comprises a rectifier bridge, the input end of the rectifier bridge is connected with a power supply battery pack, the power supply battery pack is a rechargeable battery, and a charging connector is arranged;
the negative electrode output end of the rectifier bridge is grounded, and a light emitting diode D4 and a capacitor C11 are connected in parallel between the positive electrode output end and the negative electrode output end of the rectifier bridge; the positive output end of the rectifier bridge is subjected to voltage stabilizing chip U3 to obtain a second power supply output end of the power supply module, and the second power supply output end of the power supply module is grounded through a light emitting diode D5, a capacitor C8 and a capacitor C9 respectively; the model U3 of the voltage stabilizing chip is MC7805CT;
the second power supply output end of the power supply module is also connected with a singlechip power supply circuit, the singlechip power supply circuit comprises a voltage stabilizing chip U1, the input end of the voltage stabilizing chip U1 is connected with the second power supply output end of the power supply module, the input end of the voltage stabilizing chip U1 is respectively grounded through a capacitor C1 and a capacitor C2, the output end of the voltage stabilizing chip U1 is also grounded through a capacitor C3 and a capacitor C4, and the output end of the voltage stabilizing chip U1 is used as the first power supply output end of the power supply module;
the positive output end of the rectifier bridge is connected with +VIN of a first pin end of a power chip U4, the model of the power chip U4 is BWR-12/830-D12A-C, a second pin end of the power chip U4 is grounded, a fourth pin end of the power chip U4 is a control pin end and is used for being connected with the microprocessor, a fifth pin end of the power chip U4 is used as a positive power supply connection end of a third power supply output end of the power module, and a 7 th pin end of the power chip U4 is used as a negative power supply connection end of the third power supply output end of the power module.
The first power supply output end outputs a 3.3V voltage signal to supply power to the microprocessor. The second power supply output end outputs a 5V voltage signal to supply power to the active battery signal module, the active driving module and the AD signal conversion module, and the third power supply output end outputs +12 and-12 voltage signals to supply power to the signal processing module, so that the power supply is not influenced even if the power supply is connected with an inverted power supply.
Preferably, the above microprocessor chip is STM32F103RBT6.
STM32F103RBT6 series incorporates a high performance ARM Cortex operating at 72MHz frequency TM An M332 bit RISC core, high speed embedded memory (128 KB maximum flash memory, 20KB maximum sram memory), and various enhanced I/O and peripherals connected to the two APB buses. Low power consumption and power saving, and meets the design requirement of the utility model.
Preferably, the AD signal conversion module adopts a modularized chip design, and the chip model of the AD signal conversion module is ADs1115IDGSR.
Chip ADS1115IDGSR sample rate: 860Hz; resolution ratio: 16; supply voltage: 2V-5.5V; ADS1115 has the characteristics of integrating MUX, PGA, comparator, oscillator and reference 16-bit ADC. The ADS1115 device is an I2C compatible 16-bit high precision low power analog to digital converter (ADC), and the ADS1115 device employs a low drift voltage reference and an oscillator.
Preferably, the activation driving module adopts a modularized chip design, and the chip model of the activation driving module is ULN2004A.
Chip ULN2004A is a high voltage, high current darlington array, each containing 7 open-collector darlington pairs, common emitter, suitable for relay drivers.
Preferably, the microprocessor is further connected with a communication module, the communication module is designed by adopting a modularized chip, and the model of the communication module is CH340G; the communication module is connected with a USB communication interface.
Preferably, the microprocessor is connected with an LCD display. The display page of the LCD display is at least provided with an activation progress display unit, a text unit, a time display unit, an electric quantity display unit and a lithium battery model display unit.
The lithium battery activation instrument comprises an activation instrument box body and the lithium battery activation circuit; a circuit board, a display and interface mounting plate and a battery accommodating cavity are arranged in the activating instrument box body; the circuit board is at least provided with an activated battery signal module, an activated driving module, a microprocessor, a signal processing module and a power module in the lithium battery activation circuit; the display and interface mounting plate is at least provided with an LCD display, a charging connector of a power supply battery pack and a USB communication interface; the battery accommodating cavity is provided with a power supply battery pack.
Through the design, the lithium battery activator realizes integrated design, has small volume and light weight, and is convenient to carry; is suitable for various working environments.
The utility model has the beneficial effects that:
the relay is adopted to realize voltage detection and battery activation under the conditions of no-load and load of the lithium battery, and the circuit layout is ingenious and simple;
the integrated design is adopted, and the rechargeable power supply battery is combined for supplying power, so that the lithium battery activator is small in whole size, light in weight and convenient to carry, and the load of a tester in carrying and using is reduced. Particularly, when the external guarantee service is performed, the product battery can be rapidly detected, and the method is suitable for various working environments.
Drawings
FIG. 1 is a block diagram of a circuit connection of the present utility model;
FIG. 2 is a circuit diagram of an active battery signal;
FIG. 3 is a circuit diagram of a signal processing module;
FIG. 4 is a circuit diagram of a power module;
FIG. 5 is a circuit diagram of a microprocessor;
fig. 6 is a circuit diagram of an AD signal conversion module;
FIG. 7 is a circuit diagram of an activation drive module employing modules;
FIG. 8 is a circuit diagram of a communication module;
FIG. 9 is a schematic view of the overall structure of the activator housing;
FIG. 10 is a schematic diagram of the structure of a case of the deactivator;
FIG. 11 is a schematic diagram of a partial layout of a display and interface mounting board and a circuit board;
in the figure, 1 an activator box; 2, a circuit board; 3, a display and interface mounting plate; 4a power supply battery pack.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings.
The specific implementation method comprises the following steps: as shown in figures 1 to 11 of the drawings,
a lithium battery activation circuit, see fig. 1-8, comprising an activation battery signal module and a power supply battery pack; the lithium battery connecting end of the active battery signal module is used for connecting a battery to be activated, the driving end of the active battery signal module is connected with the active driving module, the active driving module is connected with the microprocessor, the battery signal sampling output end of the active battery signal module is connected with the signal processing module, the signal output end of the signal processing module is connected with the AD signal conversion module, and the digital output end of the AD signal conversion module is connected with the microprocessor; the power supply battery pack supplies power to the microprocessor, the battery signal activating module, the driving activating module, the AD signal converting module and the signal processing module through the power supply module.
In the embodiment, the power supply battery pack is a direct current power supply battery pack, and is powered by DC 12V; the power supply is provided by a De-Lipu 12V lithium battery pack, the battery core adopts 18650, the battery has short-circuit protection and overshoot protection functions, the capacity is 15000AH, and the battery can be used for the activator continuously for about 48 hours (15000 AH/300 ma=50). The power adapter is also provided with a power adapter special for the 12V lithium battery, and has the characteristics of overcharge protection, overcurrent protection, overvoltage protection, reverse connection protection, overtemperature protection, short circuit protection, undervoltage protection, electromagnetic protection and trickle protection.
M paths of active battery signal circuits are arranged in the active battery signal module, and the internal connection structure of each path of active battery signal circuit is consistent;
in the present embodiment, m=2. As can be seen in connection with fig. 2, the 2 active battery signal circuits are a lithium battery signal circuit connected to CS3.5+/CS 3.5-and a lithium battery signal circuit connected to CS8.5+/CS8.5-, respectively.
In this embodiment, the 2-way active battery signal circuit has a consistent structure and different numbers.
Referring to fig. 2 (a), in particular, the active cell signal circuit connecting CS3.5+/CS 3.5-includes a first relay K1 and a second relay K2; one end of the coil of the first relay K1 and one end of the coil of the second relay K2 are connected with a second power supply output end 5V of the power supply module, and the other ends of the coils of the two relays are respectively connected with two driving ends OUT1 and OUT2 of the activation driving module in a one-to-one correspondence manner; diodes D12 are connected in parallel at two ends of the first relay K1, diodes D13 are connected in parallel at two ends of the coil of the second relay K2, cathodes of the two diodes are connected with the second power supply output end 5V, and anodes of the two diodes are connected with the two driving ends OUT1 and OUT2 in a one-to-one correspondence; one end of a first normally open switch of the first relay K1 is used as a positive electrode connecting end of the lithium battery and used for connecting the positive electrode of the lithium battery, and the other end of the first normally open switch is used as a battery signal sampling output end of an activated battery signal circuit and used for being connected with a signal source input end U3.5+ of the signal processing module; one end of a first normally open switch of the first relay K1 is used as a negative electrode connecting end of the lithium battery and is used for connecting a negative electrode CS 3.5-of the lithium battery, and the other end of the first normally open switch is grounded; one end of a first normally open switch of the second relay is used as a positive electrode connecting end of the lithium battery and used for being connected with a positive electrode CS3.5+ of the lithium battery, one end of the second normally open switch of the second relay is used as a negative electrode connecting end of the lithium battery and used for being connected with a negative electrode CS3.5-, and the other end of the first normally open switch of the second relay is connected with the other end of the second normally open switch of the second relay through a load R9.
Referring to fig. 2 (b), in particular, the active cell signal circuit connecting CS8.5+/CS 8.5-includes a third relay K3 and a fourth relay K4; one ends of coils of the third relay K3 and the fourth relay K4 are connected with a second power supply output end 5V of the power supply module, and the other ends of coils of the two relays are respectively connected with two driving ends OUT3 and OUT4 of the activation driving module in a one-to-one correspondence manner; diodes D14 are connected in parallel at two ends of the third relay K3, diodes D18 are connected in parallel at two ends of the coil of the fourth relay K4, cathodes of the two diodes are connected with the second power supply output end 5V, and anodes of the two diodes are correspondingly connected with the two driving ends OUT3 and OUT4 one by one; one end of a first normally open switch of the third relay K3 is used as a positive electrode connecting end of the lithium battery and used for connecting the positive electrode of the lithium battery, and the other end of the first normally open switch is used as a battery signal sampling output end of an activated battery signal circuit and used for being connected with a signal source input end U8.5+ of the signal processing module; one end of a first normally open switch of the third relay K3 is used as a negative electrode connecting end of the lithium battery and is used for connecting a negative electrode CS 8.5-of the lithium battery, and the other end of the first normally open switch is grounded; one end of a first normally open switch of the fourth relay is used as a positive electrode connecting end of the lithium battery and used for being connected with a positive electrode CS8.5+ of the lithium battery, one end of a second normally open switch of the fourth relay is used as a negative electrode connecting end of the lithium battery and used for being connected with a negative electrode CS8.5-, and the other end of the first normally open switch of the fourth relay is connected with the other end of the second normally open switch of the fourth relay through a load R21.
In this embodiment, referring to fig. 3, 2 paths of signal processing circuits U3.5+ -AIN 0 and U8.5+ -AIN 1 are arranged in the signal processing module, and the structures of the 2 paths of signal processing circuits are identical;
referring to FIG. 3 (a), the U3.5+ -AIN 0 signal processing circuit includes a first transport amplifier and a second transport amplifier; the first transport amplifier U7A and the second transport amplifier U7B are connected with a third power supply output end (+ 12, -12) of the power supply module; the positive input end of the first transport amplifier U7A is respectively grounded through a resistor R13 and a capacitor C17, the positive input end of the first transport amplifier U7A is connected with one end of a resistor R11, and the other end of the resistor R11 is used as a signal source input end of a signal processing module and is connected with a battery signal sampling output end of an activated battery signal module; the output end of the first transport amplifier U7A is connected with the inverting input end of the first transport amplifier U7A, the output end of the first transport amplifier U7A is also connected with the non-inverting input end of the second transport amplifier through a resistor R10, the non-inverting input end of the second transport amplifier U7B is grounded through a resistor R12 and a capacitor C15 respectively, the resistance values of the resistor R10 and the resistor R12 are equal, the output end of the second transport amplifier U7B is connected with the inverting input end of the second transport amplifier U7B through a resistor R8, the output end of the second transport amplifier U7B is grounded through a capacitor C16, and the output end of the second transport amplifier U7B is used as the signal processing output end of the signal processing module and is used for being connected with an analog signal sampling end AIN0 of the AD signal conversion module.
Referring to FIG. 3 (b), the U8.5+ -AIN 1 signal processing circuit includes a third transport amplifier and a fourth transport amplifier; the third transport amplifier U7D and the fourth transport amplifier U7C are connected with a third power supply output end (+ 12, -12) of the power supply module; the positive input end of the third transport amplifier U7D is respectively grounded through a resistor R19 and a capacitor C17, the positive input end of the third transport amplifier U7D is connected with one end of the resistor R17, and the other end of the resistor R17 is used as a signal source input end of the signal processing module and is connected with a battery signal sampling output end of the activated battery signal module; the output end of the third transport amplifier U7D is connected with the inverting input end of the third transport amplifier U7D, the output end of the third transport amplifier U7D is also connected with the non-inverting input end of the fourth transport amplifier through a resistor R16, the non-inverting input end of the fourth transport amplifier U7C is grounded through a resistor R18 and a capacitor C26 respectively, and the resistance values of the resistor R16 and the resistor R18 are equal and are 1MΩ. The output end of the fourth transport amplifier U7C is connected with the inverting input end of the fourth transport amplifier U7C through a resistor R15, the output end of the fourth transport amplifier U7C is grounded through a capacitor C27, and the output end of the fourth transport amplifier U7C is used as a signal processing output end AIN1 of the signal processing module and is used for being connected with an analog signal sampling end of the AD signal conversion module.
In this embodiment, the transport amplifier is model TL084ACN.
The power module comprises a rectifier bridge, the input end of the rectifier bridge is connected with a power supply battery pack, the power supply battery pack is a rechargeable battery, and a charging connector is arranged;
as can be seen in connection with fig. 4, the rectifier bridge consists of diodes D2/D3/D4/D10.
The negative electrode output end of the rectifier bridge is grounded, and a light emitting diode D4 and a capacitor C11 are connected in parallel between the positive electrode output end and the negative electrode output end of the rectifier bridge; the positive electrode output end of the rectifier bridge is subjected to voltage stabilizing chip U3 to obtain a second power supply output end 5V of the power supply module, and the second power supply output end 5V of the power supply module is grounded through a light emitting diode D5, a capacitor C8 and a capacitor C9 respectively; the model of the voltage stabilizing chip U3 is MC7805CT;
the second power supply output end 5V of the power supply module is also connected with a singlechip power supply circuit, the singlechip power supply circuit comprises a voltage stabilizing chip U1, the input end of the voltage stabilizing chip U1 is connected with the second power supply output end 5V of the power supply module, the input end of the voltage stabilizing chip U1 is respectively grounded through a capacitor C1 and a capacitor C2, the output end of the voltage stabilizing chip U1 is grounded through a capacitor C3 and a capacitor C4, and the output end of the voltage stabilizing chip U1 is used as a first power supply output end 3.3V of the power supply module;
the positive pole output end of the rectifier bridge is connected with +VIN of a first pin end of a power chip U4, the model of the power chip U4 is BWR-12/830-D12A-C, a second pin end of the power chip U4 is grounded, a fourth pin end of the power chip U4 is a control pin end and used for being connected with a microprocessor, a fifth pin end of the power chip U4 is used as a positive power supply connecting end of a third power supply output end of the power module, and a 7 th pin end of the power chip U4 is used as a negative power supply connecting end of the third power supply output end of the power module.
In this embodiment, as can be seen in conjunction with fig. 5, the microprocessor chip model is STM32F103RBT6.
In this embodiment, as can be seen from fig. 6, the AD signal conversion module adopts a modularized chip design, and the chip model of the AD signal conversion module is ADs1115IDGSR.
In this embodiment, as can be seen in conjunction with fig. 7, the active driver module adopts a modular chip design, and the chip model of the active driver module is ULN2004A.
In this embodiment, as can be seen from fig. 8, the microprocessor is further connected with a communication module, the communication module is designed by using a modularized chip, and the model of the communication module is CH340G; the communication module is connected with a USB communication interface.
In this embodiment, the microprocessor is connected to an LCD display.
An activation progress display unit, a text unit, a time display unit, an electric quantity display unit and a lithium battery model display unit are arranged on a display page of the LCD.
As can be seen in conjunction with fig. 9, 10 and 11, the lithium battery activator includes the lithium battery activation circuit in the above embodiment, and further includes an activator case; a circuit board, a display and interface mounting plate and a battery accommodating cavity are arranged in the activation instrument box body; the circuit board is at least provided with an activated battery signal module, an activated driving module, a microprocessor, a signal processing module and a power module in the lithium battery activation circuit; as can be seen in connection with fig. 11, the display and interface mounting board is provided with an LCD display, a power supply battery pack charging connector, and a USB communication interface; the battery accommodating cavity is provided with a power supply battery pack.
In this embodiment, the size of the activator box is 225mm x 160mm x 155mm. The whole size is small, and the portable cup is convenient to carry.
In this embodiment, the outer wall of the activator box is also provided with a handle.
The working principle of the utility model is described by taking a CS3.5+/CS 3.5-lithium battery as an example:
when no load, the drive module is activated and only OUT1 sends OUT a signal, the coil of the first relay K1 is electrified, one end of the first normally open switch of the first relay and one end of the second normally open switch of the first relay are closed, and as one end of the first normally open switch of the first relay and one end of the second normally open switch of the first relay are connected with two power output ends of the lithium battery, the lithium battery is directly communicated with the signal processing module, and a battery voltage signal is fed back to the microprocessor through the signal processing module and the AD signal conversion module. If the no-load detection is qualified, carrying out load detection; and if the lithium battery is not qualified, marking the lithium battery, and carrying out maintenance.
When in load, the driving modules OUT1 and OUT2 are activated to send OUT signals, the first relay K1 coil and the second relay K2 coil are electrified, the two normally open switches of the second relay K2 and the two normally open switches of the second relay K2 are closed, namely, the two ends of the lithium battery are connected with a load R9 in parallel and are also communicated with the signal processing module, and the battery voltage signals are fed back to the microprocessor through the signal processing module and the AD signal conversion module. And (3) carrying out voltage detection for a period of time or a plurality of periods, if the lithium battery detection is finished, and if the lithium battery detection is not finished, activating the lithium battery.
When the lithium battery is activated, the activation driving module only sends OUT2 signals, and the two normally open switches of the second relay K2 are closed, which is equivalent to directly connecting a load R9 on the lithium battery for discharging. After a period of discharge, no-load and load detection is again performed.
When the power supply battery pack is low in power, the charging connector is connected with the mains supply for charging. When communication debugging is needed, the communication debugging is carried out through the USB interface.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and improvements made by those skilled in the art without departing from the present technical solution shall be considered as falling within the scope of the claims.
Claims (10)
1. Lithium cell activation circuit, its characterized in that: the system comprises an activated battery signal module and a power supply battery pack;
the lithium battery connecting end of the active battery signal module is used for connecting a battery to be activated, the driving end of the active battery signal module is connected with an active driving module, the active driving module is connected with a microprocessor, the battery signal sampling output end of the active battery signal module is connected with a signal processing module, the signal output end of the signal processing module is connected with an AD signal conversion module, and the digital output end of the AD signal conversion module is connected with the microprocessor;
the power supply battery pack supplies power to the microprocessor, the battery activating signal module, the driving activating module, the AD signal converting module and the signal processing module through the power supply module.
2. The lithium battery activation circuit of claim 1, wherein: m paths of active battery signal circuits are arranged in the active battery signal module, and the internal connection structure of each path of active battery signal circuit is consistent; m is an integer greater than or equal to 1;
the active battery signal circuit comprises a first relay and a second relay; one ends of coils of the first relay and the second relay are connected with a second power supply output end of the power supply module, and the other ends of coils of the two relays are respectively connected with two driving ends OUT of the activation driving module in a one-to-one correspondence manner; the two ends of the first relay are connected with a diode D12 in parallel, the two ends of the coil of the second relay are connected with a diode D13 in parallel, the cathodes of the two diodes are connected with the second power supply output end, and the anodes of the two diodes are connected with the two driving ends OUT in a one-to-one correspondence manner;
one end of a first normally open switch of the first relay is used as a positive electrode connecting end of the lithium battery and used for connecting the positive electrode of the lithium battery, and the other end of the first normally open switch is used as a battery signal sampling output end of the active battery signal circuit and used for being connected with a signal source input end of the signal processing module; one end of a first normally open switch of the first relay is used as a negative electrode connecting end of the lithium battery and is used for connecting the negative electrode of the lithium battery, and the other end of the first normally open switch is grounded;
one end of a first normally open switch of the second relay is used as a positive electrode connecting end of the lithium battery and used for being connected with the positive electrode of the lithium battery, one end of the second normally open switch of the second relay is used as a negative electrode connecting end of the lithium battery and used for being connected with the negative electrode of the lithium battery, and the other end of the first normally open switch of the second relay is connected with the other end of the second normally open switch of the second relay through a load R9.
3. The lithium battery activation circuit of claim 1, wherein: m paths of signal processing circuits are arranged in the signal processing module, and the structures of the signal processing circuits of each path are consistent; m is an integer greater than or equal to 1;
the signal processing circuit comprises a first transport amplifier and a second transport amplifier; the first transport amplifier and the second transport amplifier are connected with a third power supply output end of the power supply module;
the positive input end of the first transport amplifier is grounded through a resistor R13 and a capacitor C17 respectively, the positive input end of the first transport amplifier is connected with one end of a resistor R11, and the other end of the resistor R11 is used as a signal source input end of a signal processing module and is connected with a battery signal sampling output end of the active battery signal module; the output end of the first transport amplifier is connected with the inverting input end of the first transport amplifier, the output end of the first transport amplifier is also connected with the noninverting input end of the second transport amplifier through a resistor R10, the noninverting input end of the second transport amplifier is grounded through a resistor R12 and a capacitor C15 respectively, the resistance values of the resistor R10 and the resistor R12 are equal, the output end of the second transport amplifier is connected with the inverting input end of the second transport amplifier through a resistor R8, the output end of the second transport amplifier is grounded through a capacitor C16, and the output end of the second transport amplifier is used as the signal processing output end of the signal processing module and is used for being connected with the analog signal sampling end of the AD signal conversion module.
4. The lithium battery activation circuit of claim 1, wherein: the power module comprises a rectifier bridge, the input end of the rectifier bridge is connected with a power supply battery pack, the power supply battery pack is a rechargeable battery, and a charging connector is arranged;
the negative electrode output end of the rectifier bridge is grounded, and a light emitting diode D4 and a capacitor C11 are connected in parallel between the positive electrode output end and the negative electrode output end of the rectifier bridge; the positive output end of the rectifier bridge is subjected to voltage stabilizing chip U3 to obtain a second power supply output end of the power supply module, and the second power supply output end of the power supply module is grounded through a light emitting diode D5, a capacitor C8 and a capacitor C9 respectively; the model U3 of the voltage stabilizing chip is MC7805CT;
the second power supply output end of the power supply module is also connected with a singlechip power supply circuit, the singlechip power supply circuit comprises a voltage stabilizing chip U1, the input end of the voltage stabilizing chip U1 is connected with the second power supply output end of the power supply module, the input end of the voltage stabilizing chip U1 is also grounded through a capacitor C1 and a capacitor C2 respectively, the output end of the voltage stabilizing chip U1 is also grounded through a capacitor C3 and a capacitor C4, and the output end of the voltage stabilizing chip U1 is used as the first power supply output end of the power supply module;
the positive pole output end of the rectifier bridge is connected with +VIN of a first pin end of a power chip U4, the model of the power chip U4 is BWR-12/830-D12A-C, a second pin end of the power chip U4 is grounded, a fourth pin end of the power chip U4 is a control pin end and is used for being connected with the microprocessor, a fifth pin end of the power chip U4 is used as a positive power supply connection end of a third power supply output end of the power module, and a 7 th pin end of the power chip U4 is used as a negative power supply connection end of the third power supply output end of the power module.
5. The lithium battery activation circuit of claim 1, wherein: the type of the microprocessor chip is STM32F103RBT6.
6. The lithium battery activation circuit of claim 1, wherein: the AD signal conversion module adopts a modularized chip design, and the chip model of the AD signal conversion module is ADS1115IDGSR.
7. The lithium battery activation circuit of claim 1, wherein: the activation driving module adopts a modularized chip design, and the chip model of the activation driving module is ULN2004A.
8. The lithium battery activation circuit of claim 1, wherein: the microprocessor is also connected with a communication module, the communication module is designed by adopting a modularized chip, and the model of the communication module chip is CH340G; the communication module is connected with a USB communication interface.
9. The lithium battery activation circuit of claim 1, wherein: the microprocessor is connected with an LCD display.
10. Lithium cell activation appearance, its characterized in that: comprising the lithium battery activation circuit and the activator housing of any one of claims 1-9;
a circuit board, a display and interface mounting plate and a battery accommodating cavity are arranged in the activation instrument box body;
the circuit board is at least provided with an activated battery signal module, an activated driving module, a microprocessor, a signal processing module and a power module in the lithium battery activation circuit;
the display and interface mounting plate is at least provided with an LCD display, a charging connector of a power supply battery pack and a USB communication interface;
the battery accommodating cavity is provided with a power supply battery pack.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321475041.7U CN219999077U (en) | 2023-06-09 | 2023-06-09 | Lithium battery activation circuit and activation instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321475041.7U CN219999077U (en) | 2023-06-09 | 2023-06-09 | Lithium battery activation circuit and activation instrument |
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| Publication Number | Publication Date |
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| CN219999077U true CN219999077U (en) | 2023-11-10 |
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| CN202321475041.7U Active CN219999077U (en) | 2023-06-09 | 2023-06-09 | Lithium battery activation circuit and activation instrument |
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| CN (1) | CN219999077U (en) |
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