CN114709541A - Fire-retardant indoor safety case that charges of lithium cell - Google Patents

Fire-retardant indoor safety case that charges of lithium cell Download PDF

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Publication number
CN114709541A
CN114709541A CN202210263602.0A CN202210263602A CN114709541A CN 114709541 A CN114709541 A CN 114709541A CN 202210263602 A CN202210263602 A CN 202210263602A CN 114709541 A CN114709541 A CN 114709541A
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China
Prior art keywords
box
fire
fire extinguishing
groove
mounting
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Withdrawn
Application number
CN202210263602.0A
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Chinese (zh)
Inventor
孙延先
袁传滔
聂春雷
王倩婷
卢达
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Zhejiang Enthalpy Technology Co ltd
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Zhejiang Enthalpy Technology Co ltd
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Priority to CN202210263602.0A priority Critical patent/CN114709541A/en
Publication of CN114709541A publication Critical patent/CN114709541A/en
Withdrawn legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561—Gases
    • H01M10/6563—Gases with forced flow, e.g. by blowers
    • H01M10/6564—Gases with forced flow, e.g. by blowers using compressed gas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/658—Means for temperature control structurally associated with the cells by thermal insulation or shielding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/659—Means for temperature control structurally associated with the cells by heat storage or buffering, e.g. heat capacity or liquid-solid phase changes or transition

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Abstract

The invention discloses a lithium battery flame-retardant indoor charging safety box, and aims to provide a lithium battery flame-retardant indoor charging safety box capable of quickly extinguishing a fire. Including case lid and box, case lid and box are connected, seted up in the box and place the chamber, place the intracavity and install the grillage, the grillage forms the water conservancy diversion chamber with the bottom of box, the grillage forms with the top of box and holds the chamber, install lithium cell body in the grillage, explosion-proof subassembly is installed to the bottom of case lid, explosion-proof subassembly sets up and is holding chamber department, explosion-proof subassembly is including fire extinguishing pipe, sensing unit and the unit of putting out a fire, fire extinguishing pipe sets up in lithium cell body's top and quantity and lithium cell body is corresponding, sensing unit and the unit of putting out a fire all set up the side at fire extinguishing pipe, fire extinguishing pipe unit and fire extinguishing pipe intercommunication. The invention has the beneficial effects that: effectively avoiding the problems of explosion and the like caused by the expansion of fire behavior and achieving the purpose of quickly extinguishing fire.

Description

Fire-retardant indoor safety case that charges of lithium cell
Technical Field
The invention relates to the technical field related to flame retardance of lithium batteries, in particular to a flame-retardant indoor charging safety box for a lithium battery.
Background
Lithium batteries are widely used because they have good performance, and are a type of battery using a non-aqueous electrolyte solution with lithium metal or a lithium alloy as a positive/negative electrode material.
In the application process of the lithium battery, the ignition and combustion of the lithium battery are always key problems to be solved, and the existing ignition and combustion of the lithium battery are mainly caused by that the battery is overcharged, the charging time is too long, the battery is not pulled out after being charged, the charger is always electrified to be connected with the battery, the battery is excessively used, the load is large for a long time, the battery is over-discharged, the battery is heated, and the danger of explosion can be caused by overheating; in case lithium cell group has certain monomer electric core to take place thermal runaway burning or even explosion, thereby can cause adjacent monomer electric core to take place thermal runaway rapidly and lead to whole group battery burning explosion, will cause very big injury to the personal and property safety, needs the high lithium cell of a fire resistance in order to solve above-mentioned problem promptly.
Chinese patent publication No.: CN107453001A, open 12 months in 2017 and 08 days in 2017, the disclosed flame retardant device for lithium batteries comprises a battery box, wherein a lithium battery is arranged inside the battery box, a flame retardant box is arranged on one side of the lithium battery, a temperature sensor is arranged on the lithium battery, an air bag is arranged inside the flame retardant box, carbon dioxide gas is filled in the air bag, one side of the air bag is connected with one end of an air outlet pipe, the other end of the air outlet pipe is positioned outside the flame retardant box, an electromagnetic valve is arranged on the air outlet pipe, and the temperature sensor is electrically connected with the electromagnetic valve.
Said invention can prevent the combustion or explosion of lithium battery due to overhigh temp., and can reduce the potential safety hazard of lithium battery. But it does not solve the problem that the electric core burning leads to adjacent electric core to receive high temperature to lead to the burning explosion, and put out a fire fast, and the device is inconvenient to be installed and is dismantled, can't in time carry out the inspection maintenance to each part inside the box.
In view of the above, it is necessary to develop a new structure to solve the above problems.
Disclosure of Invention
The invention provides a lithium battery flame-retardant indoor charging safety box capable of quickly extinguishing a fire, aiming at overcoming the defect that a lithium battery installation box cannot quickly extinguish the fire in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a fire-retardant indoor safety case that charges of lithium cell, includes case lid and box, case lid and box are connected, seted up in the box and put the chamber, it installs the grillage to put the intracavity, the grillage forms the water conservancy diversion chamber with the bottom of box, the grillage forms with the top of box and holds the chamber, install lithium cell in the grillage, explosion-proof assembly is installed to the bottom of case lid, explosion-proof assembly sets up and is holding chamber department, explosion-proof assembly includes fire extinguishing pipe, sensing unit and the unit of putting out a fire, the fire extinguishing pipe sets up in lithium cell's top and quantity and lithium cell corresponding, sensing unit and the unit of putting out a fire all set up the side at fire extinguishing pipe, fire extinguishing pipe unit and fire extinguishing pipe intercommunication.
The lithium battery body is arranged in the plate frame of the placing cavity, one of the lithium battery bodies is separated by the plate frame and is connected in parallel according to requirements, the lithium battery is overused, a long-time large load is realized, the lithium battery discharges excessively, when the internal thermal runaway of the lithium battery body is caused or the combustion is about to be caused, the sensing unit receives smoke signals or high-temperature early warning signals and sends out an alarm to remind related personnel, if the lithium battery burns or the temperature is too high, the fire extinguishing pipe releases liquid, the fire extinguishing unit provides liquid fire extinguishing agent for the fire extinguishing pipe and timely cools or waters a fire extinguishing source to reduce the internal temperature of the box body so as to achieve the effects of cooling and flame retarding, wherein the box cover and the box body are not connected in an integrated mode, the subsequent disassembly and maintenance are convenient, the placing cavity is used for placing the plate frame and the lithium battery body, the plate frame is used for separating the lithium battery bodies one by one from another, and the high temperature caused by direct gapless contact of the lithium battery bodies is avoided, the explosion-proof subassembly that holds the chamber on for the case lid provides accommodation space, and the water conservancy diversion of the back liquid of being convenient for put out a fire of setting up in water conservancy diversion chamber is discharged to the box outside through the water conservancy diversion chamber after will putting out a fire, and the unit of putting out a fire all stores liquid fire extinguishing agent with the intraductal storage of putting out a fire, for putting out a fire provides the convenience, effectively avoids the expansion of intensity of a fire and causes explosion scheduling problem, and such design has reached the purpose that can put out a fire fast.
Preferably, the fire extinguishing pipe is provided with a fire extinguishing nozzle, the fire extinguishing unit comprises a bottle group, a transmission pipe, an electromagnetic valve and a connection pipe, the connection pipe is connected with the fire extinguishing pipe, the other side of the connection pipe is connected with the transmission pipe, the electromagnetic valve is arranged on the transmission pipe, and one end of the transmission pipe, far away from the connection pipe, is connected with the bottle group. The fire control shower nozzle can adopt glass ball watering shower nozzle or easy alloy fire control shower nozzle, and the two can be when feeling high temperature blowout liquid, reaches the cooling purpose of putting out a fire, and liquid fire extinguishing agent dress provides the liquid of putting out a fire for the fire tube that goes out, and the solenoid valve is used for opening the valve on the connecting pipe for the liquid of bottle group is to the transmission of fire tube that goes out, and the connecting pipe is used for communicateing fire tube and transmission pipe that goes out a fire, and simple structure can put out a fire fast.
Preferably, the sensing unit comprises a smoke sensor and a mounting box, a power supply battery and a control circuit are arranged in the mounting box, the smoke sensor is mounted on the mounting box, and the smoke sensor, the electromagnetic valve and the power supply battery are all electrically connected with the control circuit. The mounting box is used for the fixed of smoke transducer and case lid, built-in power supply battery and control circuit of mounting box, power supply battery is used for providing working power supply for cooling fire extinguishing work, control circuit is used for controlling the development of fire extinguishing work, overuse lithium cell, long-time heavy load, the lithium cell discharges excessively, when lithium cell body inside thermal runaway arouses or is about to arouse the burning, smoke transducer receives smoke signal or high temperature early warning signal, send out the police dispatch newspaper, remind relevant personnel, and with high temperature signal transmission to control circuit, control circuit control solenoid valve opens, fire control shower nozzle experiences high temperature blowout liquid of putting out a fire, the bottle group is through transmission pipe to transmission liquid fire extinguishing agent of transmission pipe department, and transmit liquid fire extinguishing agent to each fire extinguishing pipe in proper order through the connecting pipe, provide sufficient liquid of putting out a fire for fire extinguishing pipe, reach the purpose of putting out a fire fast.
Preferably, the bottom of the mounting box is connected with a transverse plate, the bottom of the transverse plate is connected with a round ball, the bottom of the box cover is provided with a box groove matched with the mounting box, a transverse groove matched with the transverse plate is arranged in the box groove, a round groove matched with the round ball is arranged in the transverse groove, and the mounting box is connected with the box cover through the matching of the transverse plate and the transverse groove, and the round ball and the round groove. Arrange the mounting box in on the box groove to insert the ball in the circular slot, the diaphragm inserts the cross slot, increases the stable connection of mounting box and case lid, and then increases smoke transducer's stability, simple structure, the steadiness is good.
Preferably, the smoke sensor is provided with a sensing contact, the smoke sensor is provided with a mounting groove matched with the sensing contact, one end, close to the smoke sensor, of the sensing contact is connected with a mounting ball, the periphery of the sensing contact is connected with an insertion block, a ball groove matched with the mounting ball is arranged in the mounting groove, the mounting groove is internally provided with an insertion groove matched with the insertion block, and the sensing contact is arranged in the mounting groove and is connected with the smoke sensor through the matching of the mounting ball and the ball groove, the insertion block and the insertion groove. The sensing contact is used for increasing the perception scope and the sensitivity of smoke transducer, arranges the sensing contact in the mounting groove and is connected with smoke transducer, and wherein the ball inslot is arranged in to the installation ball, and the inserting groove is arranged in to the grafting piece, increases the stability that sensing contact and smoke transducer are connected, and is convenient for subsequent change.
Preferably, the bottom of case lid is connected with the picture peg, the picture peg distributes in the left and right sides and the front side of case lid bottom, box perisporium top is equipped with the slot that matches with the picture peg, the picture peg is arranged in the slot and is connected with the box, the left and right sides of picture peg is equipped with the gasket, the gasket is connected with the bottom fixed connection of case lid, the left and right sides of case lid is passed through picture peg and slot and is pegged graft with the box. The bottom of case lid sets up the picture peg, and the perisporium of box sets up the slot, and the case lid is when box top and box are connected, and the picture peg is arranged in the slot, increases the stability that box and case lid are connected, and the left and right sides of picture peg is equipped with the gasket for when picture peg and slot connection, increase the leakproofness that the two is connected, simple structure connects closely.
As preferred, the rear side of case lid is connected with articulated hinge, the back wall top of box is equipped with the articulated shaft that matches with articulated hinge, articulated hinge rotates with the articulated shaft to be connected, spring catch is installed to the front side of case lid, spring catch sets up the front side at the case lid, spring catch runs through the case lid and extends to the box, the lock seat that matches with spring catch is installed at box antetheca top, the cooperation and the box of articulated hinge and articulated shaft, spring catch and lock seat are passed through to both sides around the case lid are connected. The rear side of case lid is connected with the box through the cooperation of articulated hinge and articulated shaft, and when being convenient for to the inside inspection of box, the upset of case lid, the spring catch of installation on the case lid cooperates with the lock seat on the box, is convenient for fix case lid and box, and prior art is adopted in the setting of spring catch and lock seat wherein, and this design simple structure, and the follow-up inspection maintenance to each part of box inside of being convenient for is not repeated here.
Preferably, the bottom and the side wall of the plate frame are both connected with heat insulation layers, heat insulation cotton is filled in the heat insulation layers, and a plurality of through holes are formed in the bottom of the plate frame. The setting of insulating layer increases the thermal-insulated effect to lithium cell body, and the thermal-insulated cotton of insulating layer intussuseption can adopt glass fiber to keep warm cotton, and non-combustible and nontoxic environmental protection, a plurality of through-holes are seted up to the bottom of grillage, and the liquid combines thermal-insulated cotton flow guide intracavity that flows in after being convenient for put out a fire, and such design can increase flame retardant efficiency, is convenient for simultaneously put out a fire the discharge of back liquid.
Preferably, a guide plate is installed in the guide cavity, the guide plate is arranged in an inclined manner, the guide plate divides the guide cavity into an upper cavity and a lower cavity, and a drainage port is arranged on the outer side of the box body and communicated with the upper cavity. The guide plate slope sets up and is used for increasing the water conservancy diversion effect, and the guide plate divide into the water conservancy diversion chamber and arranges the chamber down with the water conservancy diversion chamber, and upward row's chamber is used for the drain, and drain port and last row's chamber intercommunication, the liquid after being convenient for cool down and putting out a fire through drain port outflow box, avoid liquid to pile up, arrange the chamber down and be used for the heat dissipation, simple structure, the commonality is good.
Preferably, the lower cavity is provided with a fan, the side wall of the box body is provided with a plurality of air dispersing holes, the air dispersing holes are communicated with the inside of the box body, and the fan is electrically connected with the control circuit. The fan adopts radiator fan for gas flow and heat dissipation, and the cooperation gas pocket that looses increases the radiating effect, and when control circuit received the high temperature signal of smoke transducer transmission, the work of control fan took the heat dissipation measure in advance for the inside heat dissipation of box, further increased the fire resistance.
The invention has the beneficial effects that: simple structure, it is convenient to install, and the later stage maintenance of being convenient for, the unit of putting out a fire all stores liquid fire extinguishing agent with the intraductal storage of putting out a fire, for putting out a fire provides the convenience, effectively avoids the expansion of intensity of a fire and causes explosion scheduling problem, and smoke signal or high temperature early warning signal are received to the sensing unit, send the police dispatch newspaper, remind relevant personnel, and such design has reached the purpose that can put out a fire fast.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a bottom view of the case cover;
FIG. 3 is an exploded view of the sensor unit and the cartridge slot;
FIG. 4 is a schematic diagram of a sensing tip;
FIG. 5 is a top view of the mounting slot;
FIG. 6 is a perspective view of the lid;
FIG. 7 is a top view of the case;
FIG. 8 is an internal structural view of the case;
FIG. 9 is a schematic structural view of the panel bracket;
fig. 10 is a structural view of the through hole.
In the figure: 1. the fire extinguishing box comprises a box cover, 11 hinge joints, 12 box grooves, 121 transverse grooves, 122 round grooves, 13 spring latches, 14 inserting plates, 15 sealing plates, 2 box bodies, 21 hinge shafts, 22 inserting grooves, 23 locking seats, 24 drainage ports, 25 air dispersing holes, 26 accommodating cavities, 27 accommodating cavities, 271 grills, 272 heat insulation layers, 273 through holes, 28 flow guide cavities, 281 upper row cavities, 282 flow guide plates, 283 lower row cavities, 29 fans, 3 lithium battery bodies, 4 fire extinguishing pipes, 41 fire extinguishing nozzles, 5 fire extinguishing units, 51 bottle groups, 52 delivery pipes, 53 electromagnetic valves, 54 connecting pipes, 6 sensing units, 61 smoke sensors, 611 mounting grooves, 612 ball grooves, 613 insertion grooves, 62 sensing contacts, 621 insertion blocks, 622 mounting balls, 63 mounting boxes, 631 transverse plates, 632 ball transverse plates.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
As shown in fig. 1 and 2, a fire-retardant indoor safety box that charges of lithium cell, including case lid 1 and box 2, case lid 1 and box 2 are connected, it places chamber 27 to have seted up in the box 2, place and install grillage 271 in the chamber 27, grillage 271 forms water conservancy diversion chamber 28 with the bottom of box 2, grillage 271 forms with the top of box 2 and holds chamber 26, install lithium cell body 3 in the grillage 271, explosion-proof subassembly is installed to the bottom of case lid 1, explosion-proof subassembly sets up and is holding chamber 26 department, explosion-proof subassembly includes fire extinguishing pipe 4, sensing unit 6 and fire extinguishing unit 5, fire extinguishing pipe 4 sets up in lithium cell body 3's top and quantity and lithium cell body 3 is corresponding, sensing unit 6 and fire extinguishing unit 5 all set up the side at fire extinguishing pipe 4, fire extinguishing pipe 4 units and fire extinguishing pipe 4 intercommunication.
As shown in fig. 2, the fire extinguishing pipe 4 is provided with a fire extinguishing nozzle 41, the fire extinguishing unit 5 includes a bottle group 51, a delivery pipe 52, a solenoid valve 53 and a connecting pipe 54, the connecting pipe 54 is connected to the fire extinguishing pipe 4, the other side of the connecting pipe 54 is connected to the delivery pipe 52, the solenoid valve 53 is installed on the delivery pipe 52, and one end of the delivery pipe 52 far from the connecting pipe 54 is connected to the bottle group 51.
As shown in fig. 3, the sensing unit 6 includes a smoke sensor 61 and a mounting box 63, the mounting box 63 is internally provided with a power supply battery and a control circuit, the smoke sensor 61 is mounted on the mounting box 63, and the smoke sensor 61, the electromagnetic valve 53 and the power supply battery are all electrically connected with the control circuit.
The bottom of mounting box 63 is connected with diaphragm 631, and the bottom of diaphragm 631 is connected with ball 632, and the bottom of case lid 1 is equipped with the box groove 12 that matches with mounting box 63, is equipped with the cross slot 121 that matches with diaphragm 631 in the box groove 12, is equipped with the circular slot 122 that matches with ball 632 in the cross slot 121, and mounting box 63 is connected with case lid 1 through the cooperation of diaphragm 631 and cross slot 121, ball 632 and circular slot 122.
As shown in fig. 4 and 5, a sensing contact 62 is arranged on the smoke sensor 61, a mounting groove 611 matched with the sensing contact 62 is arranged on the smoke sensor 61, a mounting ball 622 is connected to one end of the sensing contact 62 close to the smoke sensor 61, a plug block 621 is connected to the periphery of the sensing contact 62, a ball groove 612 matched with the mounting ball 622 is arranged in the mounting groove 611, a plug groove 613 matched with the plug block 621 is arranged in the mounting groove 611, and the sensing contact 62 is arranged in the mounting groove 611 and connected with the smoke sensor 61 through the matching of the mounting ball 622 and the ball groove 612, and the matching of the plug block 621 and the plug groove 613.
As shown in fig. 6 and 7, the bottom of the case cover 1 is connected with the insertion plates 14, the insertion plates 14 are distributed on the left side, the right side and the front side of the bottom of the case cover 1, the top of the peripheral wall of the case body 2 is provided with an insertion groove 22 matched with the insertion plate 14, the insertion plates 14 are arranged in the insertion groove 22 and connected with the case body 2, the left side and the right side of the insertion plates 14 are provided with sealing sheets 15, the sealing sheets 15 are fixedly connected with the bottom of the case cover 1, and the left side and the right side of the case cover 1 are inserted into the case body 2 through the insertion grooves 22 and the insertion plates 14.
As shown in fig. 2 and 7, the rear side of the box cover 1 is connected with a hinged hinge 11, the top of the rear wall of the box body 2 is provided with a hinged shaft 21 matched with the hinged hinge 11, the hinged hinge 11 is rotatably connected with the hinged shaft 21, the front side of the box cover 1 is provided with a spring catch 13, the spring catch 13 is arranged at the front side of the box cover 1, the spring catch 13 penetrates through the box cover 1 and extends towards the box body 2, the top of the front wall of the box body 2 is provided with a lock seat 23 matched with the spring catch 13, and the front side and the rear side of the box cover 1 are connected with the box body 2 through the matching of the hinged hinge 11 and the hinged shaft 21, and the spring catch 13 and the lock seat 23.
As shown in fig. 9 and 10, the bottom and the side walls of the plate frame 271 are both connected with a heat insulation layer 272, the heat insulation layer 272 is filled with heat insulation cotton, and the bottom of the plate frame 271 is provided with a plurality of through holes 273.
As shown in fig. 8, a baffle 282 is installed in the diversion chamber 28, the baffle 282 is arranged obliquely, the baffle 282 divides the diversion chamber 28 into an upper row of chambers 281 and a lower row of chambers 283, a drainage port 24 is arranged on the outer side of the tank 2, and the drainage port 24 is communicated with the upper row of chambers 281.
The lower-row cavity 283 is internally provided with a fan 29, the side wall of the box body 2 is provided with a plurality of air-diffusing holes 25, the air-diffusing holes 25 are communicated with the inside of the box body 2, and the fan 29 is electrically connected with the control circuit.
When the installation is carried out, the lithium battery body 3 is arranged in the plate frame 271 of the placing cavity, one of the lithium battery bodies is separated by the plate frame 271 and is connected in parallel according to requirements, the sensing contact 62 is arranged in the installation groove 611 to be connected with the smoke sensor 61, wherein the installation ball 622 is arranged in the ball groove 612, the insertion block 621 is arranged in the insertion groove 613 to increase the stability of the connection between the sensing contact 62 and the smoke sensor 61, the smoke sensor 61 is arranged on the installation box 63, the installation box 63 is arranged on the box groove 12, the ball 632 is inserted into the circular groove 122, the transverse plate 631 is inserted into the transverse groove 121 to increase the stable connection between the installation box 63 and the box cover 1, further to increase the stability of the smoke sensor 61, then each fire extinguishing electric control component is electrically connected with the control circuit, the rear side of the box cover 1 is connected with the box body 2 by the matching of the hinge 11 and the hinge shaft, the box cover 1 is covered on the top of the box body 2 to be connected with the box body 2, the inserting plate 14 is arranged in the inserting groove to complete buckling of the box cover 1 and the box body 2, and the spring lock catch 13 arranged on the box cover 1 is matched with the lock seat 23 on the box body 2 to fix the box cover 1 and the box body 2 to complete installation of the installation box.
When the fire extinguishing device works, the lithium battery is excessively used, a large load is carried out for a long time, the lithium battery is excessively discharged, when thermal runaway inside the lithium battery body 3 is caused or combustion is about to be caused, the smoke sensor 61 receives smoke signals or high-temperature early warning signals, an alarm is given out to remind relevant personnel, the high-temperature signals are transmitted to the control circuit, the control circuit controls the electromagnetic valve 53 to be opened, the fire control nozzle 41 senses high-temperature sprayed fire extinguishing liquid, the bottle group 51 transmits the liquid fire extinguishing agent to the connecting pipe 54 through the transmission pipe 52, the liquid fire extinguishing agent is sequentially transmitted to the fire extinguishing pipes 4 through the connecting pipe 54, sufficient fire extinguishing liquid is provided for the fire extinguishing pipes 4, the purpose of quickly extinguishing fire is achieved, when the control circuit receives the high-temperature signals transmitted by the smoke sensor 61, the fan 29 is controlled to work, heat dissipation is carried out inside the box body 2, heat dissipation measures are taken in advance, and the flame retardance is further increased, after fire extinguishment, liquid flows into the flow guide cavity 28 in combination with the heat insulation cotton, and the drainage port 24 is communicated with the upper drainage cavity 281, so that the liquid after temperature reduction and fire extinguishment flows out of the box body 2 through the drainage port, and liquid accumulation is avoided.

Claims (10)

1. The utility model provides a fire-retardant indoor safe case that charges of lithium cell, characterized by, includes case lid (1) and box (2), case lid (1) and box (2) are connected, it places chamber (27) to have seted up in box (2), place and install grillage (271) in chamber (27), grillage (271) forms water conservancy diversion chamber (28) with the bottom of box (2), grillage (271) forms with the top of box (2) and holds chamber (26), install lithium cell body (3) in grillage (271), explosion-proof subassembly is installed to the bottom of case lid (1), explosion-proof subassembly sets up and locates holding chamber (26), explosion-proof subassembly includes fire extinguishing pipe (4), sensing unit (6) and unit (5) of putting out a fire, fire extinguishing pipe (4) set up in the top of lithium cell body (3) and quantity is corresponding with lithium cell body (3), the sensing unit (6) and the fire extinguishing unit (5) are arranged beside the fire extinguishing pipe (4), and the fire extinguishing pipe (4) is communicated with the fire extinguishing pipe (4).
2. The lithium battery flame-retardant indoor charging safety box according to claim 1, wherein the fire extinguishing pipe (4) is provided with a fire extinguishing nozzle (41), the fire extinguishing unit (5) comprises a bottle group (51), a transmission pipe (52), an electromagnetic valve (53) and a connecting pipe (54), the connecting pipe (54) is connected with the fire extinguishing pipe (4), the other side of the connecting pipe (54) is connected with the transmission pipe (52), the electromagnetic valve (53) is arranged on the transmission pipe (52), and one end of the transmission pipe (52) far away from the connecting pipe (54) is connected with the bottle group (51).
3. The lithium battery flame-retardant indoor charging safety box according to claim 2, wherein the sensing unit (6) comprises a smoke sensor (61) and a mounting box (63), a power supply battery and a control circuit are arranged in the mounting box (63), the smoke sensor (61) is mounted on the mounting box (63), and the smoke sensor (61), the electromagnetic valve (53) and the power supply battery are all electrically connected with the control circuit.
4. The lithium battery flame-retardant indoor charging safety box according to claim 3, characterized in that a transverse plate (631) is connected to the bottom of the mounting box (63), a round ball (632) is connected to the bottom of the transverse plate (631), a box groove (12) matched with the mounting box (63) is formed in the bottom of the box cover (1), a transverse groove (121) matched with the transverse plate (631) is formed in the box groove (12), a round groove (122) matched with the round ball (632) is formed in the transverse groove (121), and the mounting box (63) is connected with the box cover (1) through matching of the transverse plate (631) with the transverse groove (121), the round ball (632) with the round groove (122).
5. The indoor charging safety box of the flame-retardant lithium battery as claimed in claim 3, wherein a sensing contact (62) is arranged on the smoke sensor (61), a mounting groove (611) matched with the sensing contact (62) is arranged on the smoke sensor (61), a mounting ball (622) is connected to one end, close to the smoke sensor (61), of the sensing contact (62), an insertion block (621) is connected to the periphery of the sensing contact (62), a ball groove (612) matched with the mounting ball (622) is arranged in the mounting groove (611), an insertion groove (613) matched with the insertion block (621) is arranged in the mounting groove (611), and the sensing contact (62) is arranged in the mounting groove (611) and connected with the smoke sensor (61) through the matching of the mounting ball (622) with the ball groove (612), and the matching of the insertion block (621) with the insertion groove (613).
6. The flame-retardant indoor charging safety box for the lithium battery as claimed in claim 1, characterized in that a plugboard (14) is connected to the bottom of the box cover (1), the plugboard (14) is distributed on the left side and the right side of the bottom of the box cover (1), a slot (22) matched with the plugboard (14) is arranged at the top of the circumferential wall of the box body (2), the plugboard (14) is arranged in the slot (22) to be connected with the box body (2), sealing sheets (15) are arranged on the left side and the right side of the plugboard (14), the sealing sheets (15) are fixedly connected with the bottom of the box cover (1), and the left side and the right side of the box cover (1) are connected with the box body (2) through the plugboard (14) and the slot (22).
7. The fire-retardant indoor charging safety box for lithium batteries according to claim 5, the rear side of the box cover (1) is connected with a hinged hinge (11), the top of the rear wall of the box body (2) is provided with a hinged shaft (21) matched with the hinged hinge (11), the hinged hinge (11) is rotationally connected with a hinged shaft (21), a spring lock catch (13) is arranged at the front side of the box cover (1), the spring lock catch (13) is arranged on the front side of the box cover (1), the spring lock catch (13) penetrates through the box cover (1) and extends towards the box body (2), a lock seat (23) matched with the spring lock catch (13) is arranged at the top of the front wall of the box body (2), the front side and the rear side of the box cover (1) are connected with the box body (2) through the matching of a hinged hinge (11), a hinged shaft (21) and a spring lock catch (13) with a lock seat (23).
8. The flame-retardant indoor charging safety box for the lithium battery as claimed in claim 1, wherein the bottom and the side wall of the plate frame (271) are both connected with a heat insulating layer (272), the heat insulating layer (272) is filled with heat insulating cotton, and the bottom of the plate frame (271) is provided with a plurality of through holes (273).
9. The safety box for the flame-retardant indoor charging of the lithium battery as claimed in claim 1, wherein a flow guide plate (282) is installed in the flow guide chamber (28), the flow guide plate (282) is arranged obliquely, the flow guide plate (282) divides the flow guide chamber (28) into an upper row of chambers (281) and a lower row of chambers (283), a drainage port (24) is arranged on the outer side of the box body (2), and the drainage port (24) is communicated with the upper row of chambers (281).
10. The fire-retardant indoor charging safety box for the lithium battery as claimed in claim 9, wherein a fan (29) is installed in the lower row of cavities (283), a plurality of air dissipation holes (25) are formed in the side wall of the box body (2), the air dissipation holes (25) are communicated with the inside of the box body (2), and the fan (29) is electrically connected with the control circuit.
CN202210263602.0A 2022-03-17 2022-03-17 Fire-retardant indoor safety case that charges of lithium cell Withdrawn CN114709541A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210263602.0A CN114709541A (en) 2022-03-17 2022-03-17 Fire-retardant indoor safety case that charges of lithium cell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210263602.0A CN114709541A (en) 2022-03-17 2022-03-17 Fire-retardant indoor safety case that charges of lithium cell

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CN114709541A true CN114709541A (en) 2022-07-05

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117388541A (en) * 2023-12-01 2024-01-12 新乡市阳光电源制造有限公司 Discharge detection device for lithium battery and detection method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117388541A (en) * 2023-12-01 2024-01-12 新乡市阳光电源制造有限公司 Discharge detection device for lithium battery and detection method thereof
CN117388541B (en) * 2023-12-01 2024-03-22 新乡市阳光电源制造有限公司 Discharge detection device for lithium battery and detection method thereof

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Application publication date: 20220705