CN109713190B - Explosion-proof lithium battery power supply with two output types and working method thereof - Google Patents
Explosion-proof lithium battery power supply with two output types and working method thereof Download PDFInfo
- Publication number
- CN109713190B CN109713190B CN201910106428.7A CN201910106428A CN109713190B CN 109713190 B CN109713190 B CN 109713190B CN 201910106428 A CN201910106428 A CN 201910106428A CN 109713190 B CN109713190 B CN 109713190B
- Authority
- CN
- China
- Prior art keywords
- switch unit
- controllable switch
- power supply
- negative electrode
- positive electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000000203 mixture Substances 0.000 claims abstract description 61
- 238000007599 discharging Methods 0.000 claims abstract description 57
- 238000012544 monitoring process Methods 0.000 claims abstract description 38
- 238000002955 isolation Methods 0.000 claims abstract description 17
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910001416 lithium ion Inorganic materials 0.000 claims abstract description 15
- 238000005266 casting Methods 0.000 claims abstract description 3
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 12
- 239000004020 conductor Substances 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000004880 explosion Methods 0.000 abstract description 13
- 230000007246 mechanism Effects 0.000 abstract description 7
- 238000004382 potting Methods 0.000 description 11
- 239000002360 explosive Substances 0.000 description 8
- 239000002253 acid Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses an anti-explosion lithium battery power supply with two output types and a working method thereof, wherein the anti-explosion lithium battery power supply comprises a power supply body and an external protection system, the external protection system consists of an intrinsic safety type dangerous mixture concentration monitoring and power supply protection system, and the power supply body comprises an anti-explosion power supply shell and a pouring module; the working method comprises the following steps: the battery module is charged and discharged with the outside through the discharging anode, the discharging cathode, the charging anode, the charging cathode, the battery management system and the intrinsic safety type dangerous mixture concentration monitoring and power protection system control the on-off of the controllable switch unit in the casting module, and different output types of the lithium battery power supply are realized. The invention has the advantages that: the explosion protection method, the multiple electric protection mechanism and the multiple circuit isolation methods which are combined with the pouring protection, the intrinsic safety protection and the explosion-proof protection are adopted, so that the limit of the lithium ion battery power supply in dangerous areas like a 0 area and the like is effectively solved, and the application range of the lithium ion battery power supply is widened.
Description
Technical Field
The invention relates to the field of application of lithium battery power supplies in explosive mixture environments, in particular to an explosion-proof lithium battery power supply with two output types and a working method thereof.
Background
At present, most of high-power battery power sources used in explosive mixture environments are lead-acid batteries, and the lead-acid batteries have the defects of less energy storage, large volume and the like, and have hydrogen evolution side reaction in the charging process, so that the safety of the explosive mixture environments is seriously influenced. With the increasing demands of dangerous mixture monitoring systems and other electric equipment such as handheld equipment, auxiliary transportation equipment and the like in explosive mixture environments on storage battery capacity, industrial production tends to select and use lithium ion batteries with higher energy. However, the larger the battery capacity, the more energy is stored and the more factors affect the safety performance, thus putting more stringent protection against explosion for the use of lithium ion batteries in explosive mixture environments. The explosion-proof and intrinsic safety lithium ion power supply or the applied patent used at present mostly only has intrinsic safety type output or non-intrinsic safety type output, the requirements of various power utilization units such as an intrinsic safety system and a non-intrinsic safety system cannot be met at the same time, and the explosion-proof protection level cannot meet the requirements of dangerous places like a 0 area.
Disclosure of Invention
According to the defects of the prior art, the invention provides an anti-explosion lithium battery power supply with two output types and a working method thereof, wherein the anti-explosion lithium battery power supply comprises a power supply body and an external protection system, the external protection system consists of an intrinsic safety type dangerous mixture concentration monitoring and power supply protection system, and the power supply body comprises an anti-explosion power supply shell and a pouring module; the working method comprises the following steps: the battery module performs charge and discharge with the outside through the discharge anode, the discharge cathode, the charge anode and the charge cathode, and the battery management system and the intrinsic safety type dangerous mixture concentration monitoring and power protection system control the on-off of the internal controllable switch unit so as to realize intrinsic safety output of the lithium battery power supply.
The invention is realized by the following technical scheme:
the utility model provides an explosion-proof lithium cell power with two kinds of output types, its characterized in that explosion-proof lithium cell power includes power body and external protection system, the power body includes explosion-proof power shell and assembles the inside die set that waters of explosion-proof power shell, wherein:
the pouring module comprises a battery module, wherein the positive electrode of the battery module is electrically connected with the discharging positive electrode controllable switch unit and the charging positive electrode controllable switch unit, and the negative electrode of the battery module is electrically connected with the discharging negative electrode controllable switch unit and the charging negative electrode controllable switch unit.
The discharging anode controllable switch unit, the discharging cathode controllable switch unit, the charging anode controllable switch unit and the charging cathode controllable switch unit are correspondingly connected with the discharging anode, the discharging cathode, the charging anode and the charging cathode sequentially through the fuse unit and the isolating switch.
The pouring module further comprises a battery management system electrically connected with the battery module through a battery information sampling circuit, wherein a power supply positive electrode of the battery management system is connected with a first end of a battery management system power supply positive electrode controllable switch unit, a second end of the battery management system power supply positive electrode controllable switch unit is connected with the positive electrode of the battery module, a power supply negative electrode of the battery management system is connected with a first end of a battery management system power supply negative electrode controllable switch unit, and a second end of the battery management system power supply negative electrode controllable switch unit is connected with the negative electrode of the battery module;
the control signals of the battery management system are respectively output to the discharging anode controllable switch unit, the discharging cathode controllable switch unit, the charging anode controllable switch unit and the charging cathode controllable switch unit so as to control the on and off of the discharging anode controllable switch unit;
the pouring module further comprises an intrinsic safety power supply conversion circuit, wherein the input positive electrode of the intrinsic safety power supply conversion circuit is connected with the positive electrode of the battery module, and the input negative electrode of the intrinsic safety power supply conversion circuit is connected with the negative electrode of the battery module;
the external protection system comprises an intrinsic safety type dangerous mixture concentration monitoring and power supply protection system connected with the intrinsic safety type power supply conversion circuit, and the battery management system is connected and communicated with the intrinsic safety type dangerous mixture concentration monitoring and power supply protection system through a communication line;
the control signals of the intrinsic safety type dangerous mixture concentration monitoring and power supply protection system are respectively output to the discharging positive electrode controllable switch unit, the discharging negative electrode controllable switch unit, the charging positive electrode controllable switch unit, the charging negative electrode controllable switch unit, the power supply positive electrode controllable switch unit of the power supply management system and the power supply negative electrode controllable switch unit of the power supply system so as to control the on and off of the discharging positive electrode controllable switch unit, the discharging negative electrode controllable switch unit, the charging negative electrode controllable switch unit, the power supply management system and the power supply negative electrode controllable switch unit.
The pouring module further comprises a safety isolation circuit, wherein an input positive electrode of the safety isolation circuit is connected with a positive electrode of the battery module, and an input negative electrode of the safety isolation circuit is connected with a negative electrode of the battery module.
The pouring module further comprises an internal protection circuit, and the internal protection circuit is electrically connected with the safety isolation circuit.
The explosion-proof power supply shell is internally divided into a pouring sealing cavity and an explosion-proof cavity; wherein,,
the pouring and sealing module is assembled in the pouring and sealing cavity;
the explosion-proof cavity is internally provided with a fuse unit, and the fuse unit comprises a discharge positive electrode fuse connected between the discharge positive electrode controllable switch unit and the discharge positive electrode, a discharge negative electrode fuse connected between the discharge negative electrode controllable switch unit and the discharge negative electrode, a charge positive electrode fuse connected between the charge positive electrode controllable switch unit and the charge positive electrode, and a charge negative electrode fuse connected between the charge negative electrode controllable switch unit and the charge negative electrode.
The explosion-proof cavity is internally provided with a group of quadrupole isolating switches, the first sides of the quadrupole isolating switches are sequentially connected with the discharge positive electrode fuse, the discharge negative electrode fuse, the charge positive electrode fuse and the charge negative electrode fuse, and the second sides of the quadrupole isolating switches are correspondingly connected with the discharge positive electrode, the discharge negative electrode, the charge positive electrode and the charge negative electrode.
The working method of the explosion-proof lithium battery power supply with two output types is as follows: the battery module performs charge and discharge with the outside through a discharge anode, a discharge cathode, a charge anode and a charge cathode; the battery management system monitors the battery module and controls the opening and closing of the discharging anode controllable switch unit, the discharging cathode controllable switch unit, the charging anode controllable switch unit and the charging cathode controllable switch unit; the intrinsic safety type dangerous mixture concentration monitoring and power supply protection system detects the dangerous mixture concentration in the environment in real time, and controls the on and off of the discharging positive electrode controllable switch unit, the discharging negative electrode controllable switch unit, the charging positive electrode controllable switch unit, the charging negative electrode controllable switch unit, the power supply positive electrode controllable switch unit of the power supply management system and the power supply negative electrode controllable switch unit of the power supply system.
In the process of charging and discharging the battery module and the outside, when the line current exceeds the threshold value of the fuse unit, the fuse unit automatically fuses to realize cutting of the corresponding line.
Under the condition that the concentration of dangerous mixture is not out of limit, the explosion-proof lithium battery power supply with two output types works normally, and two kinds of output of intrinsic safety and non-intrinsic safety are realized so as to meet the power supply requirements of different equipment; under the condition that the concentration of dangerous mixture exceeds the limit, the intrinsic safety type dangerous mixture concentration monitoring and power supply protection system directly controls the discharging anode controllable switch unit, the discharging cathode controllable switch unit, the charging anode controllable switch unit and the charging cathode controllable switch unit to be turned off, the multifunctional explosion-proof lithium ion battery power supply can only realize intrinsic safety output and supply power to the intrinsic safety type dangerous mixture concentration monitoring and power supply protection system, and all other exposed conductor parts except for the inner part of the pouring and sealing explosion-proof module of the rest system are not electrified.
Under the condition that the concentration of dangerous mixture exceeds the limit, the intrinsic safety type dangerous mixture concentration monitoring and power protection system controls the power supply positive electrode controllable switch unit of the power management system and the power supply negative electrode controllable switch unit of the power system to be turned off, the battery management system loses electricity, so that the discharging positive electrode controllable switch unit, the discharging negative electrode controllable switch unit, the charging positive electrode controllable switch unit and the charging negative electrode controllable switch unit are turned off, the multifunctional explosion-proof lithium ion battery power supply can only realize intrinsic safety output, the intrinsic safety type dangerous mixture concentration monitoring and power protection system supplies power, and other exposed conductor parts except for inner parts of the pouring explosion-proof module of the rest system are not electrified.
The invention has the advantages that: the explosion-proof lithium battery power supply with two output types is formed by adopting an explosion-proof protection method combining pouring protection, intrinsic safety protection and explosion-proof protection, a multiple electric protection mechanism and a plurality of circuit isolation methods, so that the limit of the current power supply formed by lithium batteries in dangerous areas like a 0 area and the like is effectively solved, and the application range of the lithium ion battery power supply in various industrial places with explosive dangerous mixture environments such as coal mine underground places, petrochemical enterprises production areas and the like is greatly expanded.
Drawings
Fig. 1 is a schematic diagram of an explosion-proof lithium battery power supply with two output types according to the present invention.
Detailed Description
The features of the present invention and other related features are described in further detail below by way of example in conjunction with the following drawings, to facilitate understanding by those skilled in the art:
as in fig. 1, reference numerals 1-28 are respectively: the power supply comprises a power supply body 1, an external protection system 2, an explosion-proof power supply shell 3, a pouring cavity 4, an explosion-proof cavity 5, a pouring module 6, a battery module 7, a discharging anode controllable switch unit 8, a discharging cathode controllable switch unit 9, a charging anode controllable switch unit 10, a charging anode controllable switch unit 11, a fuse unit 12, a discharging anode fuse 13, a discharging cathode fuse 14, a charging anode fuse 15, a charging anode fuse 16, a quadrupole isolating switch 17, a discharging anode 18, a discharging anode 19, a charging anode 20, a charging anode 21, a battery management system 22, a battery management system power supply anode controllable switch unit 23, a battery management system power supply anode controllable switch unit 24, a safety isolating circuit 25, an internal protection circuit 26, an intrinsic safety power supply conversion circuit 27 and an intrinsic safety type dangerous mixture concentration monitoring and power supply protection system 28.
Examples: as shown in fig. 1, the embodiment specifically relates to an anti-explosion lithium battery power supply with two output types and a working method thereof, wherein the anti-explosion lithium battery power supply comprises a power supply body 1 and an external protection system 2, the power supply body 1 comprises an anti-explosion power supply shell 3 and a pouring module 6, and the external protection system 2 is composed of an intrinsic safety type dangerous mixture concentration monitoring and power supply protection system 28; the working method comprises the following steps: the battery module 7 charges and discharges with the outside through the discharging anode 18, the discharging cathode 19, the charging anode 20 and the charging cathode 21, the battery management system 22 and the intrinsic safety type dangerous mixture concentration monitoring and power protection system 28 control the on-off of the controllable switch unit in the casting module 6, and the different output types of the lithium battery power supply are realized by matching with the isolation function of the isolation circuit.
As shown in fig. 1, the explosion-proof lithium battery power supply in this embodiment includes a power supply body 1 and an external protection system 2, wherein the power supply body 1 includes an explosion-proof power supply housing 3, which plays a role of sealing protection and explosion prevention, an internal space of the explosion-proof power supply housing 3 is divided into a potting cavity 4 and an explosion-proof cavity 5, a potting module 6 is installed in the potting cavity 4, a fuse unit 12 and a quadrupole isolating switch 17 are provided in the explosion-proof cavity 4, wherein the potting module 6 can effectively block direct contact between all charged components and the surrounding environment by adopting a potting protection mode, so that the potting module cannot ignite surrounding explosive mixtures under normal operation and approved overload or approved faults.
As shown in fig. 1, the potting module 6 comprises a battery module 7, wherein the battery module 7 is formed by connecting a plurality of single lithium batteries in series so as to realize larger capacity and voltage level meeting the use requirement; the fuse unit 12 comprises a discharge positive electrode fuse 13, a discharge negative electrode fuse 14, a charge positive electrode fuse 15 and a charge negative electrode fuse 16, wherein the positive electrode of the battery module 7 is respectively connected with the first end of the discharge positive electrode controllable switch unit 8 and the first end of the charge positive electrode controllable switch unit 10, the second end of the discharge positive electrode controllable switch unit 8 is connected with the first end of the discharge positive electrode fuse 13, the second end of the discharge positive electrode fuse 13 is connected with the discharge positive electrode 18 after passing through the quadrupole isolating switch 17, the second end of the charge positive electrode controllable switch unit 10 is connected with the first end of the charge positive electrode fuse 15, the second end of the charge positive electrode fuse 15 is connected with the charge positive electrode 20 after passing through the quadrupole isolating switch 17, the power supply negative electrode of the battery module 7 is respectively connected with the first end of the discharge negative electrode controllable switch unit 9 and the first end of the charge negative electrode controllable switch unit 11, the second end of the discharge negative electrode fuse 14 is connected with the second end of the charge negative electrode fuse 14 after passing through the isolating switch 17, the second end of the charge negative electrode fuse 14 is connected with the charge negative electrode fuse 16 after passing through the quadrupole isolating switch 17, and the charge negative electrode fuse 16 is connected with the charge negative electrode fuse 16, and the charge negative electrode fuse is charged by the second end of the charge negative electrode fuse 16 is connected with the charge negative electrode fuse 16; when the battery module 7 and the outside are charged and discharged, if the line current exceeds the threshold value of the fuse unit, the fuse unit 12 automatically fuses to cut off the corresponding line; in addition, when the lithium battery power supply is maintained, the quadrupole isolating switch 17 is disconnected to ensure that the battery module 7 is not charged and discharged with the outside any more, and the operation safety is ensured.
As shown in fig. 1, the potting module 6 further includes a battery management system 22, wherein a power supply positive electrode of the battery management system 22 is connected with a first end of a battery management system power supply positive electrode controllable switch unit 23, a second end of the battery management system power supply positive electrode controllable switch unit 23 is connected with a positive electrode of the battery module 7, a power supply negative electrode of the battery management system 22 is connected with a first end of a battery management system power supply negative electrode controllable switch unit 24, and a second end of the battery management system power supply negative electrode controllable switch unit 24 is connected with a negative electrode of the battery module 7, so that the battery module 7 can supply power to the battery management system 22 and work normally; the battery management system 22 is connected with the battery module 7 through a battery information sampling circuit to acquire information such as voltage, current and battery surface temperature of all the single batteries in the battery module 7, monitor the state of the batteries in real time, and output corresponding control signals to control the on and off of the discharging anode controllable switch unit 8, the discharging cathode controllable switch unit 9, the charging anode controllable switch unit 10 and the charging cathode controllable switch unit 11, so as to realize timely power-off protection.
As shown in fig. 1, the potting module 6 further includes a safety isolation circuit 25, an input positive electrode of the safety isolation circuit 25 is connected with a positive electrode of the battery module 7, and an input negative electrode of the safety isolation circuit 25 is connected with a negative electrode of the battery module 7; the safety isolation circuit 25 is also connected to an internal protection circuit 26 for protecting the battery module 7 from overcharge, overdischarge, overcurrent, short-circuit, and the like.
As shown in fig. 1, the potting module 6 further includes an intrinsic safety power conversion circuit 27, where an input positive electrode and an input negative electrode of the intrinsic safety power conversion circuit 27 are respectively connected with the positive electrode and the negative electrode of the battery module 7 correspondingly, and a conversion output end of the intrinsic safety power conversion circuit 27 is connected with an intrinsic safety type dangerous mixture concentration monitoring and power protection system 28 in the external protection system 2, so as to realize that the intrinsic safety output of the battery module 7 is supplied to the intrinsic safety type dangerous mixture concentration monitoring and power protection system 28, so that the battery module can work normally and ensure an explosion-proof effect; the intrinsic safety type dangerous mixture concentration monitoring and power protection system 28 can detect the dangerous mixture concentration in the environment through a dangerous mixture sensor, and output corresponding control signals according to the detected dangerous mixture concentration to control the opening or closing of the discharging positive electrode controllable switch unit 8, the discharging negative electrode controllable switch unit 9, the charging positive electrode controllable switch unit 10, the charging negative electrode controllable switch unit 11, the battery management system power supply positive electrode controllable switch unit 23 and the battery management system power supply negative electrode controllable switch unit 25 so as to realize timely power-off protection; the battery management system 22 may communicate with the intrinsically safe hazardous mixture concentration monitoring and power protection system 28 via a communication link.
As shown in fig. 1, the discharging positive electrode controllable switch unit 8, the discharging negative electrode controllable switch unit 9, the charging positive electrode controllable switch unit 10, the charging negative electrode controllable switch unit 11, the battery management system power supply positive electrode controllable switch unit 23 and the battery management system power supply negative electrode controllable switch unit 24 in this embodiment may be composed of a single controllable switch element (such as a relay), may be composed of a plurality of controllable switch elements, or may be composed of a controllable switch element and a fuse.
As shown in fig. 1, the connection lines in this embodiment are all connected through the lead device with sealing function provided on the casing when passing through the casing of the explosion-proof power supply casing 3, and the connection lines inside the potting module 6 are also connected through the lead device with sealing function provided on the connection lines when passing out, so as to improve the explosion-proof performance.
As shown in fig. 1, the working method of the explosion-proof lithium battery power supply with two output types in the present embodiment is as follows:
(1) The battery module 7 is charged and discharged with the outside through a discharge positive electrode 18, a discharge negative electrode 19, a charge positive electrode 20 and a charge negative electrode 21;
(2) The battery module 7 supplies power to an intrinsic safety type dangerous mixture concentration monitoring and power protection system 28 through an intrinsic safety type power supply conversion circuit 27;
(3) The battery module 7 supplies power to the battery management system 22 through the battery management system power supply anode controllable switch unit 23 and the battery management system power supply cathode controllable switch unit 24, and the battery management system 22 monitors information such as voltage, current, battery surface temperature and the like of all the single batteries in the battery module 7 in real time;
(4) When the current of the circuit exceeds the threshold value of the fuse unit 12 in the process of charging and discharging the battery module 7 and the outside, the fuse unit 12 automatically fuses to cut off the corresponding circuit;
(5) When the lithium battery power supply is maintained, the electric quadrupole isolating switch 17 is manually disconnected, so that the battery module 7 is ensured not to charge and discharge outwards any more, and the operation safety is ensured;
(6) Implementation of multiple electrical protection mechanisms:
(6.1) when the intrinsic safety type dangerous mixture concentration monitoring and power supply protection system 28 detects that the dangerous mixture concentration exceeds the limit, the intrinsic safety type dangerous mixture concentration monitoring and power supply protection system can directly control the discharge positive electrode controllable switch unit 8, the discharge negative electrode controllable switch unit 9, the charge positive electrode controllable switch unit 10 and the charge negative electrode controllable switch unit 11 to be turned off, at the moment, an explosion-proof lithium ion battery power supply can only realize intrinsic safety output, and all other exposed conductor parts except for internal components of the pouring explosion-proof module of the rest system are not electrified, so that the intrinsic safety type dangerous mixture concentration monitoring and power supply protection system is a first re-protection mechanism;
(6.2) when the intrinsic safety type dangerous mixture concentration monitoring and power supply protection system 28 detects that the dangerous mixture concentration exceeds the limit, the intrinsic safety type dangerous mixture concentration monitoring and power supply protection system can communicate with the battery management system 22, the battery management system 22 is instructed to output control signals to control the discharge positive electrode controllable switch unit 8, the discharge negative electrode controllable switch unit 9, the charge positive electrode controllable switch unit 10 and the charge negative electrode controllable switch unit 11 to be turned off, at the moment, the intrinsic safety type dangerous mixture concentration monitoring and power supply protection system only can realize intrinsic safety output, and all other exposed conductor parts except for internal components of the pouring and sealing anti-explosion module of the rest system are not electrified, so that the intrinsic safety type dangerous mixture concentration monitoring and power supply protection system is a second protection mechanism;
(6.3) when the intrinsic safety type dangerous mixture concentration monitoring and power protection system 28 detects that the dangerous mixture concentration exceeds the limit, the intrinsic safety type dangerous mixture concentration monitoring and power protection system can control the battery management system power supply positive electrode controllable switch unit 23 and the battery management system power supply negative electrode controllable switch unit 24 which are connected with the battery management system 22 to be turned off, so that the power supply of the battery management system 22 is cut off, the battery management system 22 does not work due to power failure, and the discharging positive electrode controllable switch unit 8, the discharging negative electrode controllable switch unit 9, the charging positive electrode controllable switch unit 10 and the charging negative electrode controllable switch unit 11 are turned off, at the moment, the intrinsic safety output of the explosion-proof lithium ion battery power supply can only be realized, and other exposed conductor parts except for internal components of the pouring explosion-proof module of the rest system are not electrified, so that the intrinsic safety type dangerous mixture is a third triple protection mechanism.
The beneficial effects of this embodiment are: the explosion-proof protection method combining pouring protection, intrinsic safety protection and explosion-proof protection, the multiple electric protection mechanism and the multiple circuit isolation methods form the explosion-proof lithium ion battery power supply with two output types, so that the limitation of the current power supply formed by the lithium ion battery in dangerous areas like a 0 area and the like is effectively solved, and the use of the lithium ion battery power supply in a plurality of industrial places with explosive dangerous mixture environments such as coal mine underground and petrochemical enterprises production areas and the like is greatly expanded.
Claims (1)
1. The utility model provides a work method of explosion-proof lithium cell power with two kinds of output types, its characterized in that explosion-proof lithium cell power includes power body and external protection system, the power body includes explosion-proof power shell and assembles the inside pouring module of explosion-proof power shell, wherein:
the pouring module comprises a battery module, wherein the positive electrode of the battery module is electrically connected with the discharging positive electrode controllable switch unit and the charging positive electrode controllable switch unit, and the negative electrode of the battery module is electrically connected with the discharging negative electrode controllable switch unit and the charging negative electrode controllable switch unit;
the discharging anode controllable switch unit, the discharging cathode controllable switch unit, the charging anode controllable switch unit and the charging cathode controllable switch unit are correspondingly connected with the discharging anode, the discharging cathode, the charging anode and the charging cathode through a fuse unit and an isolating switch in sequence;
the pouring module further comprises a battery management system electrically connected with the battery module through a battery information sampling circuit, wherein a power supply positive electrode of the battery management system is connected with a first end of a battery management system power supply positive electrode controllable switch unit, a second end of the battery management system power supply positive electrode controllable switch unit is connected with the positive electrode of the battery module, a power supply negative electrode of the battery management system is connected with a first end of a battery management system power supply negative electrode controllable switch unit, and a second end of the battery management system power supply negative electrode controllable switch unit is connected with the negative electrode of the battery module;
the control signals of the battery management system are respectively output to the discharging anode controllable switch unit, the discharging cathode controllable switch unit, the charging anode controllable switch unit and the charging cathode controllable switch unit so as to control the on and off of the discharging anode controllable switch unit;
the pouring module further comprises an intrinsic safety power supply conversion circuit, wherein the input positive electrode of the intrinsic safety power supply conversion circuit is connected with the positive electrode of the battery module, and the input negative electrode of the intrinsic safety power supply conversion circuit is connected with the negative electrode of the battery module;
the external protection system comprises an intrinsic safety type dangerous mixture concentration monitoring and power supply protection system connected with the intrinsic safety type power supply conversion circuit, and the battery management system is connected and communicated with the intrinsic safety type dangerous mixture concentration monitoring and power supply protection system through a communication line;
the control signals of the intrinsic safety type dangerous mixture concentration monitoring and power supply protection system are respectively output to the discharge positive electrode controllable switch unit, the discharge negative electrode controllable switch unit, the charge positive electrode controllable switch unit, the charge negative electrode controllable switch unit, the battery management system power supply positive electrode controllable switch unit and the battery management system power supply negative electrode controllable switch unit so as to control the on and off of the same;
the pouring module further comprises a safety isolation circuit, wherein an input positive electrode of the safety isolation circuit is connected with the positive electrode of the battery module, and an input negative electrode of the safety isolation circuit is connected with the negative electrode of the battery module;
the pouring module further comprises an internal protection circuit, and the internal protection circuit is electrically connected with the safety isolation circuit;
the explosion-proof power supply shell is internally divided into a pouring sealing cavity and an explosion-proof cavity; wherein,,
the pouring and sealing module is assembled in the pouring and sealing cavity;
the explosion-proof cavity is internally provided with a fuse unit, and the fuse unit comprises a discharge positive electrode fuse connected between the discharge positive electrode controllable switch unit and the discharge positive electrode, a discharge negative electrode fuse connected between the discharge negative electrode controllable switch unit and the discharge negative electrode, a charge positive electrode fuse connected between the charge positive electrode controllable switch unit and the charge positive electrode, and a charge negative electrode fuse connected between the charge negative electrode controllable switch unit and the charge negative electrode;
a quadrupole isolating switch is further arranged in the explosion-proof cavity, a first side of the quadrupole isolating switch is sequentially connected with the discharge positive electrode fuse, the discharge negative electrode fuse, the charge positive electrode fuse and the charge negative electrode fuse, and a second side of the quadrupole isolating switch is correspondingly connected with the discharge positive electrode, the discharge negative electrode, the charge positive electrode and the charge negative electrode;
the working method comprises the following steps: the battery module performs charge and discharge with the outside through a discharge anode, a discharge cathode, a charge anode and a charge cathode; the battery management system monitors the battery module and controls the opening and closing of the discharging anode controllable switch unit, the discharging cathode controllable switch unit, the charging anode controllable switch unit and the charging cathode controllable switch unit; the intrinsic safety type dangerous mixture concentration monitoring and power supply protection system detects the dangerous mixture concentration in the environment in real time and controls the on and off of the discharging positive electrode controllable switch unit, the discharging negative electrode controllable switch unit, the charging positive electrode controllable switch unit, the charging negative electrode controllable switch unit, the battery management system power supply positive electrode controllable switch unit and the battery management system power supply negative electrode controllable switch unit;
when the current of the circuit exceeds the threshold value of the fuse unit in the process of charging and discharging the battery module and the outside, the fuse unit automatically fuses to cut off the corresponding circuit;
under the condition that the concentration of dangerous mixture is not out of limit, the explosion-proof lithium battery power supply with two output types works normally, and two kinds of output of intrinsic safety and non-intrinsic safety are realized so as to meet the power supply requirements of different equipment; under the condition that the concentration of dangerous mixture exceeds the limit, the intrinsic safety type dangerous mixture concentration monitoring and power supply protection system directly controls the discharge positive electrode controllable switch unit, the discharge negative electrode controllable switch unit, the charge positive electrode controllable switch unit and the charge negative electrode controllable switch unit to be turned off, the multifunctional explosion-proof lithium ion battery power supply can only realize intrinsic safety output, power is supplied to the intrinsic safety type dangerous mixture concentration monitoring and power supply protection system, and all other exposed conductor parts except for inner parts of the pouring and sealing explosion-proof module of the rest system are not electrified;
under the condition that the concentration of dangerous mixture exceeds the limit, the intrinsic safety type dangerous mixture concentration monitoring and power supply protection system controls the battery management system power supply positive electrode controllable switch unit and the battery management system power supply negative electrode controllable switch unit to be turned off, the battery management system loses electricity, so that the discharging positive electrode controllable switch unit, the discharging negative electrode controllable switch unit, the charging positive electrode controllable switch unit and the charging negative electrode controllable switch unit are turned off, the multifunctional explosion-proof lithium ion battery power supply can only realize intrinsic safety output, the intrinsic safety type dangerous mixture concentration monitoring and power supply protection system is powered, and other parts except for inner parts of a casting explosion-proof module of the rest system are not electrified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910106428.7A CN109713190B (en) | 2019-02-02 | 2019-02-02 | Explosion-proof lithium battery power supply with two output types and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910106428.7A CN109713190B (en) | 2019-02-02 | 2019-02-02 | Explosion-proof lithium battery power supply with two output types and working method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109713190A CN109713190A (en) | 2019-05-03 |
| CN109713190B true CN109713190B (en) | 2023-06-23 |
Family
ID=66264320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910106428.7A Active CN109713190B (en) | 2019-02-02 | 2019-02-02 | Explosion-proof lithium battery power supply with two output types and working method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109713190B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112002858B (en) * | 2020-07-14 | 2022-11-25 | 华瑞矿业科技有限公司 | Explosion-proof battery |
| CN112002854B (en) * | 2020-07-14 | 2022-11-25 | 华瑞矿业科技有限公司 | Explosion-proof battery |
| CN112002859B (en) * | 2020-07-14 | 2022-11-25 | 华瑞矿业科技有限公司 | Explosion-proof battery |
| CN112002848B (en) * | 2020-07-14 | 2022-11-25 | 华瑞矿业科技有限公司 | Explosion-proof battery |
| CN112002849B (en) * | 2020-07-14 | 2022-11-25 | 华瑞矿业科技有限公司 | Explosion-proof battery |
| CN112002850B (en) * | 2020-07-14 | 2023-07-04 | 华瑞矿业科技有限公司 | Explosion-proof battery |
| CN112234306B (en) * | 2020-10-15 | 2021-10-15 | 新黎明科技股份有限公司 | Centralized control system for centralized power supply |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201975484U (en) * | 2011-04-15 | 2011-09-14 | 浙江中煤安全装备有限公司 | Flame-proof and intrinsically safe cell system of escape capsule for mine |
| CN203026989U (en) * | 2012-12-26 | 2013-06-26 | 湖南天恒新能源有限公司 | Mining explosive-proof and intrinsic safety type storage battery power source |
| CN103928948A (en) * | 2013-01-10 | 2014-07-16 | 中国科学院沈阳自动化研究所 | High-capacity lithium ion battery power supply system for well emergency risk avoiding lifesaving facility |
| CN104029644A (en) * | 2014-01-15 | 2014-09-10 | 深圳瑞朗特防爆车辆有限公司 | Intelligent control system for explosion-proof automobile |
| CN203819156U (en) * | 2014-01-15 | 2014-09-10 | 深圳瑞朗特防爆车辆有限公司 | Intelligent control system for anti-explosion vehicle |
| CN204349495U (en) * | 2014-12-18 | 2015-05-20 | 江苏新力科技实业有限公司 | A kind of mining high capacity lithium ion battery standby power system |
| CN206164129U (en) * | 2016-08-31 | 2017-05-10 | 平顶山天安煤业股份有限公司 | Mining flameproof and intrinsically safe direct current voltage stabilizing power supply |
| CN207053220U (en) * | 2017-07-28 | 2018-02-27 | 南阳防爆电气研究所有限公司 | Explosion preventing lithium ion power accumulator supply unit |
| CN108233480A (en) * | 2018-02-06 | 2018-06-29 | 北京拓盛智联技术有限公司 | A kind of anti-explosion battery and the isolation protective circuit for anti-explosion battery |
| CN208353018U (en) * | 2018-06-14 | 2019-01-08 | 常州维格电子有限公司 | Disposable lithium cell group power module |
| CN209298219U (en) * | 2019-02-02 | 2019-08-23 | 上海申传电气股份有限公司 | There are two types of the explosion-proof lithium battery power supplys of output type for a kind of tool |
-
2019
- 2019-02-02 CN CN201910106428.7A patent/CN109713190B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201975484U (en) * | 2011-04-15 | 2011-09-14 | 浙江中煤安全装备有限公司 | Flame-proof and intrinsically safe cell system of escape capsule for mine |
| CN203026989U (en) * | 2012-12-26 | 2013-06-26 | 湖南天恒新能源有限公司 | Mining explosive-proof and intrinsic safety type storage battery power source |
| CN103928948A (en) * | 2013-01-10 | 2014-07-16 | 中国科学院沈阳自动化研究所 | High-capacity lithium ion battery power supply system for well emergency risk avoiding lifesaving facility |
| CN104029644A (en) * | 2014-01-15 | 2014-09-10 | 深圳瑞朗特防爆车辆有限公司 | Intelligent control system for explosion-proof automobile |
| CN203819156U (en) * | 2014-01-15 | 2014-09-10 | 深圳瑞朗特防爆车辆有限公司 | Intelligent control system for anti-explosion vehicle |
| CN204349495U (en) * | 2014-12-18 | 2015-05-20 | 江苏新力科技实业有限公司 | A kind of mining high capacity lithium ion battery standby power system |
| CN206164129U (en) * | 2016-08-31 | 2017-05-10 | 平顶山天安煤业股份有限公司 | Mining flameproof and intrinsically safe direct current voltage stabilizing power supply |
| CN207053220U (en) * | 2017-07-28 | 2018-02-27 | 南阳防爆电气研究所有限公司 | Explosion preventing lithium ion power accumulator supply unit |
| CN108233480A (en) * | 2018-02-06 | 2018-06-29 | 北京拓盛智联技术有限公司 | A kind of anti-explosion battery and the isolation protective circuit for anti-explosion battery |
| CN208353018U (en) * | 2018-06-14 | 2019-01-08 | 常州维格电子有限公司 | Disposable lithium cell group power module |
| CN209298219U (en) * | 2019-02-02 | 2019-08-23 | 上海申传电气股份有限公司 | There are two types of the explosion-proof lithium battery power supplys of output type for a kind of tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109713190A (en) | 2019-05-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109713190B (en) | Explosion-proof lithium battery power supply with two output types and working method thereof | |
| CN209298219U (en) | There are two types of the explosion-proof lithium battery power supplys of output type for a kind of tool | |
| CN209298274U (en) | A kind of lithium ion battery power supply of high explosive-proof grade | |
| CN210897528U (en) | Modular standard battery box | |
| RU2005104545A (en) | ACCUMULATIVE POWER SUPPLY SYSTEM WITH INTERNAL SELF-PROTECTION FOR UNDERGROUND MINING WORKS | |
| CN105576776B (en) | DC power system is used in lithium-ions battery electric power and communication | |
| CN112713319A (en) | Modular standard battery box | |
| CN101888114A (en) | Multifunctional power supply of vehicular automotive electronic device | |
| CN212461950U (en) | Hand-held electric tool and battery pack and charging seat thereof | |
| CN116316518A (en) | DC power supply and distribution system of unmanned ship | |
| CN217009386U (en) | Energy storage battery cluster | |
| CN202918018U (en) | Power supply module of lithium ion power battery for mine motor vehicle | |
| JP6848075B2 (en) | Storage battery device | |
| CN111092471B (en) | Using method of overcharge and overdischarge protection circuit for energy storage battery pack | |
| CN110239464B (en) | Explosion-proof type low-voltage standby power supply device for coal mine underground explosion-proof vehicle | |
| CN110994757A (en) | Mining explosion-proof lithium ion storage battery power supply | |
| CN109659600B (en) | Lithium ion battery power supply with high explosion-proof level | |
| CN212991225U (en) | Explosion-proof battery | |
| CN107134831B (en) | Mining lithium ion battery power supply | |
| CN212991233U (en) | Explosion-proof battery | |
| CN212033828U (en) | Mining flameproof and intrinsically safe uninterrupted voltage-stabilized power supply | |
| CN109787311B (en) | Lithium battery power supply control protection system for aerial work platform | |
| CN114079116A (en) | Explosion-proof battery device | |
| CN214589154U (en) | Battery power supply device | |
| CN109787327A (en) | A kind of lithium ionic cell module management circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |