CN117458042B - Battery placement bin for new energy automobile - Google Patents

Battery placement bin for new energy automobile Download PDF

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Publication number
CN117458042B
CN117458042B CN202311785391.8A CN202311785391A CN117458042B CN 117458042 B CN117458042 B CN 117458042B CN 202311785391 A CN202311785391 A CN 202311785391A CN 117458042 B CN117458042 B CN 117458042B
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China
Prior art keywords
battery
liquid
storage box
pipe
shell
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CN202311785391.8A
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Chinese (zh)
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CN117458042A (en
Inventor
林钧涛
王昊
吴运泽
田慧明
马百勇
郑玉杰
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Changchun Zhongsheng Technology Co ltd
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Changchun Zhongsheng Technology Co ltd
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Priority to CN202311785391.8A priority Critical patent/CN117458042B/en
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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
    • 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
    • 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
    • A62C3/07—Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/617—Types of temperature control for achieving uniformity or desired distribution of 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
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • 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
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
    • 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
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • 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
    • H01M10/6567—Liquids
    • H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • 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
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • 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
    • 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
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
    • H01M50/59—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
    • H01M50/597—Protection against reversal of polarity
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2200/00—Safety devices for primary or secondary batteries

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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)
  • Business, Economics & Management (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Emergency Management (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

The invention relates to the technical field of new energy automobiles, in particular to a battery placement bin for a new energy automobile. The technical problems to be solved are as follows: the existing battery placing bin of the new energy automobile cannot prevent the battery pack from being on fire, and also cannot conduct targeted fire extinguishing treatment on the battery pack when the battery pack is on fire, and meanwhile, the heat exchange and cooling effects of the battery are poor, so that the battery pack is damaged. The technical scheme is as follows: a battery placing bin for a new energy automobile comprises a shell, a cover body and the like; the upper side of the shell is provided with a cover body. The invention realizes that the flow velocity of the cooling liquid entering the pressurizing pipe is increased through the pressurizing pipe which is flat and the liquid inlet is in a necking structure, and simultaneously increases the expansion area of the cooling liquid below the battery, thereby being beneficial to enhancing the heat dissipation effect of the battery at the left part inside the shell, preventing the unstable battery voltage caused by uneven heat dissipation of the battery at the left part inside the shell, avoiding the condition of fire occurrence of the battery at the left part inside the shell and being beneficial to enhancing the protection effect of the battery.

Description

Battery placement bin for new energy automobile
Technical Field
The invention relates to the technical field of new energy automobiles, in particular to a battery placement bin for a new energy automobile.
Background
The application number is CN202122613322.1, the Chinese patent discloses a battery pack fire extinguishing system, the device receives the heating information of the battery pack through a battery management module, the battery management module sends a signal to a whole vehicle control module, and the whole vehicle control module controls a pressure pump to pump and spray the fire extinguishing agent in a fire extinguishing agent storage device on a battery cell with thermal runaway so as to extinguish fire and prevent the thermal runaway from spreading. But the device can't prevent before the battery package fires, simultaneously, can't carry out the fire extinguishing process of pertinence when the battery package fires, lead to the connecting wire department between the battery to contact with the fire extinguishing agent that contains moisture, lead to the connecting wire department short circuit between the battery, have the condition that the battery explodes.
Further, the existing battery cooling method in the battery placing bin generally adopts cooling liquid for heat exchange, when the cooling liquid flows from one side to the other side in the placing bin, the cooling liquid absorbs heat of the battery passing through first, the heat exchange cooling effect of the battery passing through later is reduced, the voltage is unstable due to uneven heat dissipation of the battery, the battery in a high-temperature state continuously fails and is short-circuited, even the battery pack is damaged due to the condition of fire.
Disclosure of Invention
The invention provides a battery placement bin for a new energy automobile, which aims to overcome the defects that an existing battery placement bin for the new energy automobile cannot be used for preventing before a battery pack fires, and also cannot be used for carrying out targeted fire extinguishing treatment on the battery pack when the battery pack fires, and meanwhile, the battery pack is damaged due to poor heat exchange and cooling effects on the battery.
The technical scheme is as follows: a battery placing bin for a new energy automobile comprises a shell and a cover body; a cover body is arranged on the upper side of the shell; a plurality of batteries are arranged in the shell; the device also comprises a heat exchange assembly, a booster pipe and a protection system; the shell is provided with a heat exchange component for cooling the battery; the heat exchange assembly is provided with a plurality of pressurizing pipes for enhancing the heat exchange effect on the battery; each pressurizing pipe is positioned at the lower side of the battery at the left part of the inner side of the shell; a plurality of diversion parts for dispersing cooling liquid in the pressurizing pipes are arranged in each pressurizing pipe; the right end of each split flow part is in a necking structure; each pressurizing pipe is flat; the right part of the pressurizing pipe is a liquid inlet, and the left part of the pressurizing pipe is a liquid outlet; each liquid inlet is in a necking structure; the cover body is provided with a protection system for protecting the battery.
More preferably, the heat exchange component comprises a liquid inlet pipe, a condensation frame, a condensation pipe and a liquid outlet pipe; a liquid inlet pipe for conveying condensate is penetrated and fixedly connected on the shell; the liquid inlet pipe is communicated with an external pump; a condensing frame is fixedly connected in the shell; the condensing frame is of a hollow structure; the liquid inlet pipe is communicated with the condensing frame; the condensation frame is communicated with and fixedly connected with a plurality of condensation pipes for cooling the battery; the liquid inlet on each pressurizing pipe is communicated with the corresponding condensing pipe; the sum of the cross sectional areas of the plurality of diversion parts in each booster pipe is larger than the cross sectional area of the adjacent condensation pipe; the height of a plurality of diversion parts in each pressurizing pipe is smaller than the height of the condensing pipe; the liquid outlets of the plurality of pressurizing pipes are communicated with the condensing frame together; the condensing frame is communicated with and fixedly connected with a liquid outlet pipe for discharging condensate.
More preferably, the protection system comprises a storage box, a conveyer, a baffle plate, a liquid discharging component and a powder discharging component; the lower side of the cover body is fixedly connected with a plurality of storage boxes; the middle part of the inner side of each storage box is fixedly connected with a transmitter for discharging gas and liquid into the shell; each conveyor is provided with a plurality of exhaust grooves; the upper part of each exhaust groove is higher than the front part and the rear part in the middle; a plurality of clapboards for separating water are fixedly connected in each storage box; the opposite sides of the plurality of partition boards in each storage box are provided with powder storage parts for storing small beaks; a liquid storage part for storing water is arranged between the opposite sides of the plurality of partition boards in each storage box and the inner wall of the storage box; a powder discharging assembly for discharging powder particles in the storage boxes is arranged in each storage box; the inside flowing back subassembly that is used for discharging the inside moisture of storage box that all is provided with of every storage box.
More preferably, the liquid draining assembly comprises an air bag, an occluder and an elastic piece; the opposite sides of a plurality of partition boards in each storage box are fixedly connected with an air bag respectively; each conveyor is fixedly connected with a plurality of elastic pieces; the other ends of every two adjacent elastic pieces are fixedly connected with a plugging device; each conveyor is provided with a plurality of liquid discharge holes; each liquid discharging hole is positioned in the corresponding liquid storage part; each plugging device is positioned at the corresponding liquid discharge hole; each plugging device is provided with a concave part; the water in the liquid storage part is pressurized through the expansion of the air bag, when the expansion of the air bag is in contact with the plugging device, the plugging device is extruded through the air bag, and the concave part is positioned at the liquid discharge hole, so that a gap is formed between the liquid discharge hole and the plugging device, and the water is discharged to the inside of the shell through the liquid discharge hole from the air outlet at the lower part of the air discharge groove.
More preferably, the powder discharging assembly comprises a bearing plate, a lifting rope and a first hot melt adhesive; each storage box is positioned between two adjacent groups of batteries; the bottom of each storage box is rotationally connected with a plurality of bearing plates for bearing baking soda; each conveyer is fixedly connected with a plurality of lifting ropes; each lifting rope penetrates through the corresponding bearing plate; the lower end of each lifting rope is fixedly connected with a first hot melt adhesive; each first hot melt adhesive is positioned at the lower side of the corresponding bearing plate.
More preferably, the inner top wall of each storage box is gradually reduced in height from the middle part to the front side and the rear side, and the liquid storage boxes are respectively positioned at the front side and the rear side of the storage box; the powder storage part is positioned in the material storage box.
More preferably, the lower part of each conveyor penetrates through the adjacent liquid storage parts; the exhaust port at the lower part of each exhaust slot is provided as a terminal far from the battery.
More preferably, a heat conducting plate is also included; each baffle plate penetrates through the bottom of the corresponding storage box; and a plurality of heat conducting plates for conducting heat are fixedly connected at the positions of the partition plates penetrating through the storage box.
More preferably, the hot melt adhesive also comprises a transmission system, wherein the transmission system comprises a supply pipe, a drainage device and a second hot melt adhesive; the lower side of each storage box is fixedly connected with a supply pipe for conveying cooling liquid; each supply pipe is respectively communicated with a plurality of liquid storage parts in the corresponding storage box; each supply pipe is communicated with a pressurizing pipe below each storage box; the lower part of each supply pipe is rotatably connected with a drainage device for controlling the circulation of cooling liquid; the rotating ends of the front side and the rear side of each drainage device are fixedly connected with a second hot melt adhesive for fixing the drainage device.
More preferably, each supply line is located at the inlet of each booster line.
The beneficial effects are that: the invention realizes that the flow rate of the cooling liquid entering the pressurizing pipe is increased through the pressurizing pipe which is flat and the liquid inlet is in a necking structure, and simultaneously increases the expansion area of the cooling liquid below the battery, thereby being beneficial to enhancing the heat dissipation effect of the battery at the left part inside the shell, preventing the unstable battery voltage caused by uneven heat dissipation of the battery at the left part inside the shell, avoiding the condition of fire occurrence of the battery at the left part inside the shell and being beneficial to enhancing the protection effect of the battery;
Carbon dioxide decomposed by baking soda is discharged into the shell through the exhaust groove by the transmitter, so that the shell is filled with carbon dioxide, the oxygen content in the shell is reduced, the condition of ignition caused by battery failure is primarily avoided, and the protection effect on the battery is enhanced;
The water in the liquid storage part is pressurized through the expansion of the air bag, so that the water is discharged into the shell through the liquid discharge hole from the air discharge groove, the ignited battery is subjected to fire extinguishing treatment, the expansion of fire is prevented, the explosion of the battery caused by the ignition is avoided, and the protection effect of the battery is further enhanced;
The bearing plate rotates downwards, so that powdery sodium carbonate formed after baking soda is heated is poured between two adjacent groups of batteries, fire is extinguished at the connecting line between the batteries, contact between the connecting line between the batteries and moisture is prevented, battery short circuit caused by water at the connecting line between the batteries is avoided, and the protection effect on the batteries is further enhanced;
The plugging of the supply pipe is removed through the drainage device, so that the cooling liquid enters the liquid storage part through the supply pipe, the liquid is replenished in the liquid storage part, the shortage of the liquid in the liquid storage part is prevented, the further expansion of the fire extinguishing is avoided, the explosion of the battery caused by the expansion of the fire is further avoided, and the protection effect of the battery is further enhanced.
Drawings
FIG. 1 is a schematic perspective view of a first embodiment of the present invention;
FIG. 2 is a schematic view of a second perspective structure of the present invention;
fig. 3 is a schematic perspective view showing a combination of a case, a cover, and a battery according to the present invention;
FIG. 4 is a schematic perspective view of the housing, heat exchange assembly and plenum tube assembly of the present invention;
FIG. 5 is a schematic view of a heat exchange assembly and plenum assembly of the present invention in a three-dimensional configuration;
FIG. 6 is a schematic view showing a three-dimensional structure of a condenser tube and a booster tube of the present invention;
FIG. 7 is a schematic view showing a combined three-dimensional structure of a cover and a protection system according to the present invention;
FIG. 8 is a first cross-sectional view of the protection system of the present invention;
FIG. 9 is a second cross-sectional view of the protection system of the present invention;
FIG. 10 is a schematic perspective view of a protection system according to the present invention;
FIG. 11 is a schematic perspective view of a combination of a booster tube, a protection system, and a transmission system according to the present invention;
FIG. 12 is a schematic perspective view of a combination booster tube and delivery system of the present invention;
Fig. 13 is a schematic perspective view showing a combination of a protection system and a replenishment pipe according to the present invention.
Marked in the figure as: 1-shell, 2-cover, 3-battery, 4-booster tube, 4001-shunt part, 101-feed liquor pipe, 102-condensation frame, 103-condensation pipe, 104-drain pipe, 201-storage box, 20101-powder storage part, 20102-liquid storage part, 202-transmitter, 20201-exhaust groove, 20202-liquid discharge hole, 203-baffle, 204-gasbag, 205-stopper, 20501-concave part, 301-bearing plate, 302-lifting rope, 303-first hot melt adhesive, 401-supply pipe, 402-drainage device, 403-second hot melt adhesive.
Detailed Description
The invention will be further described with reference to examples of embodiments shown in the drawings.
Example 1
As shown in fig. 3 to 6, a battery placing bin for a new energy automobile comprises a shell 1 and a cover 2; a cover body 2 is arranged on the upper side of the shell 1; a plurality of batteries 3 which are distributed in a bilateral symmetry manner are arranged in the shell 1;
The device also comprises a heat exchange assembly, a booster pipe 4 and a protection system; the shell 1 is provided with a heat exchange component; a plurality of pressurizing pipes 4 are arranged on the heat exchange component; each pressurizing pipe 4 is positioned at the lower side of the battery 3 at the left part of the inner side of the shell 1; a plurality of flow dividing parts 4001 are arranged in each pressurizing pipe 4; the right end of each flow dividing part 4001 is in a necking structure; each pressurizing pipe 4 is flat; the right part of the pressurizing pipe 4 is a liquid inlet, and the left part is a liquid outlet; each liquid inlet is in a necking structure; the cover body 2 is provided with a protection system; through being the platykurtic, and the inlet is the pressure boost pipe 4 of throat structure and increases the coolant liquid velocity of flow that gets into in the pressure boost pipe 4, increases the expansion area of coolant liquid in battery 3 below simultaneously, is favorable to reinforcing the radiating effect of the inboard left portion battery 3 of casing 1, prevents that the inboard left portion battery 3 of casing 1 from radiating inhomogeneous leading to battery 3 voltage unstable, avoids the condition that the battery 3 of the inboard left portion of casing 1 takes place to fire, is favorable to reinforcing the protection effect to battery 3.
The heat exchange assembly comprises a liquid inlet pipe 101, a condensation frame 102, a condensation pipe 103 and a liquid outlet pipe 104; a liquid inlet pipe 101 penetrates through and is fixedly connected with the shell 1; the liquid inlet pipe 101 is communicated with an external pump; a condensation frame 102 is fixedly connected in the shell 1; the condensing frame 102 is of a hollow structure; the liquid inlet pipe 101 is communicated with the condensation frame 102; a plurality of condensation pipes 103 are communicated and fixedly connected with the condensation frame 102; the liquid inlet on each pressurizing pipe 4 is communicated with the corresponding condensing pipe 103; the sum of the cross-sectional areas of the several flow dividing sections 4001 in each booster pipe 4 is larger than the cross-sectional area of the adjacent condensation duct 103; the height of the plurality of flow dividing parts 4001 in each booster pipe 4 is smaller than that of the condensing pipe 103, so that the heat exchange area of the booster pipes 4 and the battery 3 is increased, the flow rate of cooling liquid in the booster pipes 4 is increased, and the heat exchange effect of the booster pipes 4 on the battery 3 is enhanced; the liquid outlets of the plurality of pressurizing pipes 4 are communicated with the condensing frame 102 together; the condensation frame 102 is communicated with and fixedly connected with a liquid outlet pipe 104.
The specific process for enhancing the heat exchange effect of the invention is as follows:
During normal running of the vehicle, the liquid inlet pipe 101 pumps cooling liquid into the right part of the inner side of the condensation frame 102, then flows into the condensation pipe 103 from the right part of the inner side of the condensation frame 102, exchanges heat for the battery 3 at the right part of the inner side of the shell 1, cools down, and then flows into the booster pipes 4, and the sum of the cross sectional areas of the plurality of flow dividing parts 4001 in each booster pipe 4 is larger than the cross sectional area of the adjacent condensation pipe 103; the height of a plurality of shunting parts 4001 in each booster pipe 4 is smaller than the height of a condensing pipe 103, through being flat, and the booster pipe 4 with a liquid inlet in a necking structure increases the flow rate of cooling liquid entering the booster pipe 4 from the condensing pipe 103, and simultaneously increases the expansion area of the cooling liquid below the left battery 3 inside the shell 1, thereby being beneficial to enhancing the heat dissipation effect of the left battery 3 inside the shell 1, preventing the cooling liquid from absorbing the heat of the right battery 3 inside the shell 1, reducing the heat exchange and cooling effect of the left battery 3 inside the shell 1, further preventing the unstable voltage of the battery 3 caused by uneven heat dissipation of the battery 3, avoiding the situation that the battery 3 on the left inside the shell 1 fires, being beneficial to enhancing the protection effect of the battery 3, and then enabling the cooling liquid to flow from the booster pipe 4 to the left inside of the condensing frame 102, and discharging the cooling liquid from the liquid outlet pipe 104 to the outside of the shell 1 through a pump.
Example 2
On the basis of the embodiment 1, as shown in fig. 7 to 10, the protection system comprises a storage box 201, a conveyor 202, a partition 203, a liquid discharging component and a powder discharging component; two storage boxes 201 which are symmetrical in front and back are fixedly connected to the lower side of the cover body 2; a conveyer 202 is fixedly connected to the middle part of the inner side of each storage box 201; each conveyor 202 is provided with a plurality of exhaust grooves 20201; the upper portion of each of the air discharge grooves 20201 is provided in a shape that the middle portion is higher than the front portion and the rear portion, so that the water is prevented from being discharged to contact with the battery 3 through the air discharge grooves 20201; two front-back symmetrical partition plates 203 are fixedly connected inside each storage box 201; the two partition plates 203 in each storage box 201 are provided with powder storage parts 20101 on opposite sides; a liquid storage part 20102 is arranged between the opposite sides of the two partition plates 203 in each storage box 201 and the inner wall of the storage box 201; a powder discharging component is arranged inside each storage box 201; a liquid discharging component is arranged in each storage box 201; after baking soda in the storage box 201 is heated by the battery 3, decomposed carbon dioxide is discharged into the shell 1 through the exhaust groove 20201, so that the shell 1 is filled with carbon dioxide, the oxygen content in the shell 1 is reduced, the condition that the battery 3 breaks down and fires is primarily avoided, and the protection effect on the battery 3 is enhanced.
The liquid draining assembly comprises an air bag 204, an occluder 205 and an elastic piece; an air bag 204 is fixedly connected to the opposite sides of the two partition plates 203 in each storage box 201; each conveyor 202 is fixedly connected with a plurality of elastic pieces, and the elastic pieces are springs; the other ends of every two adjacent elastic pieces are fixedly connected with a plugging device 205; each conveyor 202 is provided with a plurality of liquid discharge holes 20202; each drain hole 20202 is located in the corresponding liquid storage portion 20102; each stopper 205 is located at a corresponding drain hole 20202; each occluder 205 is provided with a concave portion 20501; the expansion of the air bag 204 pressurizes the water in the reservoir 20102, and the water is discharged from the air discharge groove 20201 to the inside of the casing 1 through the liquid discharge hole 20202, so that the fire of the ignited battery 3 is extinguished, the expansion of the fire is prevented, the explosion of the battery 3 due to the ignition is avoided, and the protection effect of the battery 3 is further enhanced.
The powder discharging assembly comprises a bearing plate 301, a lifting rope 302 and a first hot melt adhesive 303; each storage box 201 is positioned between two adjacent groups of batteries 3; the bottom of each storage box 201 is rotatably connected with a plurality of bearing plates 301; a plurality of lifting ropes 302 are fixedly connected to each conveyor 202; each lifting rope 302 penetrates through the corresponding bearing plate 301; the lower end of each lifting rope 302 is fixedly connected with a first hot melt adhesive 303; each first hot melt adhesive 303 is located on the lower side of the corresponding bearing plate 301; through the downward rotation of loading board 301, empty between two adjacent battery 3 with the powdered sodium carbonate that forms after the baking soda intensifies, put out a fire to the junction line department between the battery 3, prevent junction line department and the moisture contact between the battery 3, avoid the junction line department between the battery 3 to lead to battery 3 short circuit because of meeting water, further strengthened the protection effect to battery 3.
The inner top wall of each storage box 201 is gradually reduced from the middle part to the front side and the rear side; the water drops formed after the baking soda is warmed up are led to the liquid storage part 20102, the water falling to the powder storage part 20101 due to condensation of the inner top wall of the storage box 201 is reduced, the baking soda is prevented from being damped seriously, the decomposition effect of the baking soda is prevented from being reduced, and meanwhile, the fire extinguishing effect of the connecting line between the batteries 3 is guaranteed.
The lower part of each conveyor 202 penetrates through two adjacent liquid storage parts 20102; the exhaust port at the lower part of each exhaust groove 20201 is provided as a terminal far from the battery 3; the water in the liquid storage part 20102 cools the carbon dioxide in the exhaust groove 20201, reduces the temperature of the carbon dioxide exhausted into the shell 1, prevents the temperature in the shell 1 from rising, and avoids the condition that the temperature of the battery 3 rises continuously to cause fire.
The heat-conducting plate is also included; each partition 203 penetrates through the bottom of the corresponding storage box 201; a plurality of heat-conducting plates are fixedly connected at the position of each partition plate 203 penetrating through the storage box 201; the heat of the fire is quickly conducted to the partition plate 203 through the heat conducting plate, so that the expansion speed of the air bag 204 is increased, the fire extinguishing efficiency after the fire is further increased, the expansion of the fire is prevented, and the protection effect on the battery 3 is further enhanced.
The fire extinguishing process of the invention comprises the following specific steps:
In the normal running process of the vehicle, the battery 3 runs to generate heat, baking soda in the powder storage part 20101 starts to decompose after being heated by the heat released by the battery 3, carbon dioxide, water and sodium carbonate are formed, the carbon dioxide released by decomposition is discharged into the shell 1 through the exhaust groove 20201, the inside of the shell 1 is filled with carbon dioxide, the oxygen content in the shell 1 is reduced, the condition that the battery 3 breaks down and fires occurs is initially avoided, the protection effect on the battery 3 is enhanced, the moisture generated by the baking soda decomposition is heated by the heat released by the battery 3 and then is converted into steam, the steam floats upwards to be in contact with the inner top wall of the storage box 201, and the inner top wall of the storage box 201 is gradually reduced from the middle part to the front side and the rear side due to the fact that the inner top wall of the storage box 201 is gradually reduced, water drops condensed on the inner top wall of the storage box 201 are led to the 20102, the moisture condensed on the inner top wall of the storage box 201 is reduced, the baking soda is prevented from being severely affected by damp, and the decomposition effect of the baking soda is prevented from being reduced.
When the battery 3 breaks down and causes fire, the heat of the fire is quickly conducted to the partition 203 through the heat-conducting plate, the air bag 204 is heated and expanded, the water in the liquid storage part 20102 is pressurized through the expansion of the air bag 204, when the air bag 204 expands to be in contact with the plugging device 205, the plugging device 205 is extruded through the air bag 204, the concave part 20501 is positioned at the position of the liquid discharge hole 20202, thereby generating a gap between the liquid discharge hole 20202 and the plugging device 205, the water is discharged to the inside of the shell 1 through the liquid discharge hole 20202 through the air outlet at the lower part of the air discharge groove 20201, water is sprayed to the position far away from the wiring end of the battery 3, and then the fire extinguishing treatment is performed on the ignited battery 3, so that the fire is prevented from expanding, explosion caused by the fire is avoided, meanwhile, the first hot melt adhesive 303 is melted, and because the storage boxes 201 are all positioned between two adjacent batteries 3, the first hot melt adhesive 303 and the lifting rope 302 are fixed to rotate downwards, powdered sodium carbonate formed after the baking soda is poured between the two adjacent batteries 3, the connecting wire between the batteries 3 is used for carrying out, the water extinguishing effect is further avoided, and the connecting wire between the batteries 3 is protected, and the connecting wire between the batteries 3 is further, and the water extinguishing effect is prevented.
Example 3
On the basis of the embodiments 1 and 2, as shown in fig. 1,2 and 11-13, the hot melt adhesive further comprises a transmission system, wherein the transmission system comprises a supply pipe 401, a drainage device 402 and a second hot melt adhesive 403; a supply pipe 401 is fixedly connected to the lower side of each storage box 201; each supply pipe 401 is respectively communicated with two liquid storage parts 20102 in the corresponding storage box 201; each supply pipe 401 communicates with the pressurizing pipe 4 below each magazine 201; the lower part of each supply pipe 401 is rotatably connected with a drainage device 402 through a torsion spring; the rotating ends of the front side and the rear side of each drainage device 402 are fixedly connected with a second hot melt adhesive 403; the blockage of the supply pipe 401 is removed through the drainage device 402, so that the cooling liquid enters the liquid storage part 20102 through the supply pipe 401, the liquid in the liquid storage part 20102 is supplemented, the shortage of the liquid in the liquid storage part 20102 is prevented, the further expansion caused by extinguishing a fire method is avoided, the explosion of the battery 3 caused by the expansion of the fire is further avoided, and the protection effect on the battery 3 is further enhanced.
Each supply pipe 401 is positioned at the liquid inlet of the right part of each pressurizing pipe 4; the pressure and the flow rate of the cooling liquid entering the supply pipe 401 are increased, so that the fire extinguishing effect of the cooling liquid is enhanced.
The concrete process of the liquid replenishing of the invention is as follows:
In the initial state, as shown in fig. 12, when the battery 3 fails and fires, the second hot melt adhesive 403 is melted at a high temperature, the drainage device 402 loses the fixation of the second hot melt adhesive 403, and rotates by torsion to release the blocking of the supply pipes 401, and since each supply pipe 401 is located at the necking of the right part of each pressurizing pipe 4, the cooling liquid is pressurized and then enters the liquid storage part 20102 through the supply pipe 401, the liquid storage part 20102 is replenished with liquid, the cooling liquid is discharged into the casing 1 through the liquid discharge hole 20202 by the air discharge groove 20201, fire extinguishing treatment is performed on the ignited battery 3, the shortage of liquid in the liquid storage part 20102 is prevented, the further expansion of the battery 3 due to the expansion of fire is avoided, and the protection effect on the battery 3 is further enhanced.
The embodiments described above are intended to provide those skilled in the art with a full range of modifications and variations to the embodiments described above without departing from the inventive concept thereof, and therefore the scope of the invention is not limited by the embodiments described above, but is to be accorded the broadest scope consistent with the innovative features recited in the claims.

Claims (6)

1. The battery placing bin for the new energy automobile comprises a shell (1) and a cover body (2); a cover body (2) is arranged on the upper side of the shell (1); a plurality of batteries (3) are arranged in the shell (1); the device is characterized by further comprising a heat exchange assembly, a pressurizing pipe (4) and a protection system; the shell (1) is provided with a heat exchange component for cooling the battery (3); the heat exchange component is provided with a plurality of supercharging pipes (4) for enhancing the heat exchange effect on the battery (3); each pressurizing pipe (4) is positioned at the lower side of the battery (3) at the left part of the inner side of the shell (1); a plurality of diversion parts (4001) for dispersing cooling liquid in the pressurizing pipes (4) are arranged in each pressurizing pipe (4); the right end of each flow dividing part (4001) is in a necking structure; each pressurizing pipe (4) is flat; the right part of the pressurizing pipe (4) is a liquid inlet, and the left part is a liquid outlet; each liquid inlet is in a necking structure; a protection system for protecting the battery (3) is arranged on the cover body (2);
The heat exchange assembly comprises a liquid inlet pipe (101), a condensation frame (102), a condensation pipe (103) and a liquid outlet pipe (104); a liquid inlet pipe (101) for conveying condensate is penetrated and fixedly connected on the shell (1); the liquid inlet pipe (101) is communicated with an external pump; a condensation frame (102) is fixedly connected in the shell (1); the condensing frame (102) is of a hollow structure; the liquid inlet pipe (101) is communicated with the condensation frame (102); a plurality of condensing pipes (103) for cooling the battery (3) are communicated and fixedly connected with the condensing frame (102); the liquid inlet on each pressurizing pipe (4) is communicated with the corresponding condensing pipe (103); the sum of the cross-sectional areas of the plurality of flow dividing parts (4001) in each pressurizing pipe (4) is larger than the cross-sectional area of the adjacent condensing pipe (103); the height of a plurality of flow dividing parts (4001) in each pressurizing pipe (4) is smaller than the height of the condensing pipe (103); the liquid outlets of the plurality of pressurizing pipes (4) are communicated with the condensing frame (102); a liquid outlet pipe (104) for discharging condensate is communicated and fixedly connected with the condensation frame (102);
The protection system comprises a storage box (201), a conveyor (202), a baffle plate (203), a liquid discharging component and a powder discharging component; a plurality of storage boxes (201) are fixedly connected to the lower side of the cover body (2); the middle part of the inner side of each storage box (201) is fixedly connected with a transmitter (202) for discharging gas and liquid into the shell (1); each conveyor (202) is provided with a plurality of exhaust grooves (20201); the upper part of each exhaust groove (20201) is higher than the front part and the rear part in the middle; a plurality of clapboards (203) for separating water are fixedly connected in each storage box (201); the opposite sides of a plurality of clapboards (203) in each storage box (201) are provided with powder storage parts (20101) for storing small threes; a liquid storage part (20102) for storing moisture is arranged between the opposite sides of the plurality of partition plates (203) in each storage box (201) and the inner wall of each storage box (201); a powder discharging assembly for discharging powder particles in the storage boxes (201) is arranged in each storage box (201); a liquid discharging component for discharging the water in the storage boxes (201) is arranged in each storage box (201); the gas is carbon dioxide generated by decomposing baking soda, and the liquid is water;
the liquid draining component comprises an air bag (204), a plugging device (205) and an elastic piece; the separation sides of a plurality of clapboards (203) in each storage box (201) are fixedly connected with an air bag (204) respectively; each conveyor (202) is fixedly connected with a plurality of elastic pieces; the other ends of every two adjacent elastic pieces are fixedly connected with a plugging device (205) together; each conveyor (202) is provided with a plurality of liquid discharge holes (20202); each drain hole (20202) is positioned in the corresponding liquid storage part (20102); each stopper (205) is positioned at the corresponding liquid discharge hole (20202); each plugging device (205) is provided with a concave part (20501); when the air bag (204) expands to be in contact with the stopper (205), the stopper (205) is pressed by the air bag (204) to enable the concave part (20501) to be positioned at the liquid discharge hole (20202), so that a gap is formed between the liquid discharge hole (20202) and the stopper (205), and the moisture is discharged into the shell (1) from the air outlet at the lower part of the air discharge groove (20201) through the liquid discharge hole (20202); draining water to a position far away from the battery terminal through the drain assembly;
The powder discharging assembly comprises a bearing plate (301), a lifting rope (302) and a first hot melt adhesive (303); each storage box (201) is positioned between two adjacent groups of batteries (3); the bottom of each storage box (201) is rotationally connected with a plurality of bearing plates (301) for bearing baking soda; a plurality of lifting ropes (302) are fixedly connected to each conveyor (202); each lifting rope (302) penetrates through the corresponding bearing plate (301); the lower end of each lifting rope (302) is fixedly connected with a first hot melt adhesive (303); each first hot melt adhesive (303) is positioned on the lower side of the corresponding bearing plate (301); and the baking soda is discharged to the connecting line between the batteries through the powder discharging assembly, so that quick fire extinguishing is realized.
2. A battery compartment for a new energy vehicle according to claim 1, wherein the inner top wall of each storage box (201) is provided in a shape of gradually decreasing height from the middle to the front and rear sides, and the liquid storage parts (20102) are respectively located at the front and rear sides of the storage box (201); the powder storage part (20101) is positioned in the material storage box (201).
3. A battery compartment for a new energy vehicle according to claim 1, wherein the lower portion of each conveyor (202) extends through adjacent ones of the reservoirs (20102); the exhaust port at the lower part of each exhaust groove (20201) is provided as a terminal far from the battery (3).
4. A battery compartment for a new energy vehicle according to claim 2, further comprising a thermally conductive plate; each partition board (203) penetrates through the bottom of the corresponding storage box (201); and a plurality of heat conducting plates for conducting heat are fixedly connected at the position of each partition plate (203) penetrating through the storage box (201).
5. A battery compartment for a new energy vehicle according to claim 4, further comprising a transmission system comprising a supply line (401), a flow diverter (402) and a second hot melt adhesive (403); a supply pipe (401) for conveying cooling liquid is fixedly connected to the lower side of each storage box (201); each supply pipe (401) is respectively communicated with a plurality of liquid storage parts (20102) in the corresponding storage box (201); each supply pipe (401) is communicated with a pressurizing pipe (4) below each storage box (201); the lower part of each supply pipe (401) is rotatably connected with a drainage device (402) for controlling the circulation of cooling liquid; the rotating ends of the front side and the rear side of each drainage device (402) are fixedly connected with a second hot melt adhesive (403) for fixing the drainage device (402).
6. A battery compartment for a new energy vehicle according to claim 5, characterized in that each supply pipe (401) is located at the inlet of each pressurizing pipe (4).
CN202311785391.8A 2023-12-25 2023-12-25 Battery placement bin for new energy automobile Active CN117458042B (en)

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