WO2020134054A1 - 动力电池包及车辆 - Google Patents

动力电池包及车辆 Download PDF

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Publication number
WO2020134054A1
WO2020134054A1 PCT/CN2019/097640 CN2019097640W WO2020134054A1 WO 2020134054 A1 WO2020134054 A1 WO 2020134054A1 CN 2019097640 W CN2019097640 W CN 2019097640W WO 2020134054 A1 WO2020134054 A1 WO 2020134054A1
Authority
WO
WIPO (PCT)
Prior art keywords
bottom plate
side beam
gas
battery pack
gas channel
Prior art date
Application number
PCT/CN2019/097640
Other languages
English (en)
French (fr)
Inventor
任正华
鲁志佩
郭坤
彭青波
朱燕
Original Assignee
比亚迪股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 比亚迪股份有限公司 filed Critical 比亚迪股份有限公司
Priority to EP19904418.1A priority Critical patent/EP3905377A4/en
Priority to JP2021538260A priority patent/JP7377271B2/ja
Priority to KR1020217023460A priority patent/KR102662686B1/ko
Priority to US17/419,464 priority patent/US20220123427A1/en
Publication of WO2020134054A1 publication Critical patent/WO2020134054A1/zh
Priority to JP2023184360A priority patent/JP2024026061A/ja

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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
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/342—Non-re-sealable arrangements
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/64—Constructional details of batteries specially adapted for electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/66—Arrangements of batteries
    • 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
    • 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
    • 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
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular 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
    • H01M50/249—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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • 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
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/342—Non-re-sealable arrangements
    • H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
    • 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
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/35—Gas exhaust passages comprising elongated, tortuous or labyrinth-shaped exhaust passages
    • H01M50/358—External gas exhaust passages located on the battery cover or case
    • 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
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/383—Flame arresting or ignition-preventing means
    • 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
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/394—Gas-pervious parts or elements
    • 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
    • H01M2200/20—Pressure-sensitive devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • 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
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Definitions

  • the present disclosure relates to the field of electric vehicles, and in particular, to a power battery pack and a vehicle.
  • the power battery pack is the core component of hybrid electric vehicles and electric vehicles.
  • the power battery pack is mainly composed of several battery cells, a battery tray, and a cover plate.
  • the battery tray is installed at the bottom of the car, and the cover plate is sealedly connected with the battery tray and jointly forms an enclosed space for accommodating the battery cells.
  • the battery cell is usually provided with an explosion-proof valve structure.
  • the explosion-proof valve opens, and the flame, smoke, or gas inside the battery cell is discharged through the explosion-proof valve.
  • the discharged flame, smoke, or gas will accumulate inside the battery pack and cannot be discharged in time, which may easily cause secondary damage to the battery or affect other batteries.
  • the present disclosure provides a power battery pack that can effectively prevent flame, smoke, or gas discharged from battery cells from accumulating inside the battery pack.
  • the present disclosure provides a power battery pack including a battery tray and a plurality of battery cells provided on the battery tray, each battery cell has a single explosion-proof valve, and the battery tray includes a tray body, A gas passage is formed in at least a part of the tray body.
  • the tray body is provided with a plurality of air inlet holes and at least one air outlet hole. The flame, smoke or gas discharged from each single explosion-proof valve enters the gas channel through the corresponding air inlet hole, and the exhaust hole is used to discharge the flame, smoke or gas in the gas channel.
  • At least a part of the tray body is a hollow structure, and the hollow structure serves as the gas passage.
  • the battery tray further includes a battery pack explosion-proof valve, and the exhaust hole is blocked by the battery pack explosion-proof valve.
  • the tray body includes a bottom plate and side beams, the side beams are disposed around the bottom plate and define a battery cell accommodating space with the bottom plate, and the side beams are formed inside There is a gas channel, and both the air inlet hole and the air outlet hole are provided on the side beam.
  • the tray body includes a bottom plate and side beams.
  • the side beams are disposed around the bottom plate and define a battery cell accommodating space together with the bottom plate.
  • Gas channels are formed inside the bottom plate and interpenetrate with each other, the inlet holes are provided on the side beams, and the exhaust holes are provided on the bottom plate.
  • the tray body includes a bottom plate and side beams.
  • the side beams are disposed around the bottom plate and define a battery cell accommodating space with the bottom plate.
  • the bottom plate is formed with The gas channel, the air inlet hole and the air outlet hole are all provided on the bottom plate.
  • the tray body includes a bottom plate and side beams.
  • the side beams are disposed around the bottom plate and define a battery cell accommodating space together with the bottom plate.
  • Gas channels are formed inside the bottom plate and interpenetrate with each other, the air intake hole is provided on the bottom plate, and the air exhaust hole is provided on the side beam.
  • the tray body includes a bottom plate, side beams, and a plurality of partitions, the side beams are disposed around the bottom plate and jointly define a battery cell receiving space with the bottom plate,
  • the separator is provided on the bottom plate and divides the bottom plate into several areas for placing battery cells, and gas passages are formed inside the separator and inside the side beams and penetrate each other, the The air inlet hole is provided on the partition plate, and the air outlet hole is provided on the side beam.
  • the tray body includes a bottom plate, side beams, and a plurality of partitions, the side beams are disposed around the bottom plate and jointly define a battery cell receiving space with the bottom plate,
  • the separator is provided on the bottom plate and divides the bottom plate into several areas for placing battery cells. Both the interior of the separator and the bottom plate are formed with gas channels and penetrate each other. Air holes are provided on the partition plate, and the air discharge holes are provided on the bottom plate.
  • the tray body includes a bottom plate, side beams, and a plurality of partitions, the side beams are disposed around the bottom plate and jointly define a battery cell receiving space with the bottom plate,
  • the separator is provided on the bottom plate and divides the bottom plate into several areas for placing battery cells, and gas passages are formed inside the separator, inside the side beams and inside the bottom plate,
  • the gas channel inside the partition plate penetrates through the gas channel inside the side beam
  • the gas channel inside the side beam penetrates through the gas channel inside the bottom plate
  • the air inlet hole is provided on the partition plate
  • the vent hole is provided on the bottom plate.
  • the tray body includes a bottom plate, side beams, and a plurality of partitions, the side beams are disposed around the bottom plate and jointly define a battery cell receiving space with the bottom plate,
  • the separator is provided on the bottom plate and divides the bottom plate into several areas for placing battery cells, and gas passages are formed inside the separator, inside the side beams and inside the bottom plate,
  • the gas channel inside the partition plate penetrates the gas channel inside the bottom plate, the gas channel inside the bottom plate penetrates the gas channel inside the side beam, and the air inlet hole is provided on the partition plate,
  • the vent hole is provided on the side beam.
  • the tray body includes a bottom plate, side beams, and a plurality of partitions, the side beams are disposed around the bottom plate and jointly define a battery cell receiving space with the bottom plate,
  • the separator is provided on the bottom plate and divides the bottom plate into several areas for placing battery cells, and gas passages are formed inside the separator and inside the side beams and penetrate each other, and part of them enter An air hole is provided on the partition plate, another part of the air inlet hole is provided on the side beam, and the exhaust hole is provided on the side beam.
  • the tray body includes a bottom plate, side beams, and a plurality of partitions, the side beams are disposed around the bottom plate and jointly define a battery cell receiving space with the bottom plate,
  • the separator is provided on the bottom plate and divides the bottom plate into several areas for placing battery cells. Both the inside of the separator and the bottom plate are formed with gas channels and penetrate each other, and part of the air intake A hole is provided on the partition, another part of the air intake hole is provided on the bottom plate, and the exhaust hole is provided on the bottom plate.
  • the tray body includes a bottom plate, side beams, and a plurality of partitions, the side beams are disposed around the bottom plate and jointly define a battery cell receiving space with the bottom plate,
  • the separator is provided on the bottom plate and divides the bottom plate into several areas for placing battery cells, and gas passages are formed inside the separator, inside the side beams and inside the bottom plate and Interpenetrating with each other, a part of the air intake hole is provided on the partition plate, another part of the air intake hole is provided on at least one of the side beam and the bottom plate, and the air discharge hole is provided on the side beam and the bottom plate At least one of them.
  • the battery tray further includes at least one of a smoke and gas sensor, and at least one of the smoke and gas sensor is disposed in the gas channel.
  • the power battery pack further includes a sealing gasket, the sealing gasket is disposed between the battery cell and the tray body, and the sealing gasket is provided with a through hole, the through hole
  • the intake holes correspond to each other one by one, and the through holes are located between the corresponding intake holes and the single explosion-proof valve.
  • the power battery pack further includes a cover plate that is sealingly connected with the battery tray and jointly forms an enclosed space for accommodating the battery cells.
  • the present disclosure also provides a vehicle including the power battery pack as described above.
  • FIG. 1 is a schematic perspective view of a battery tray according to an embodiment of the present disclosure
  • FIG. 2 is a top view of the battery tray of FIG. 1;
  • FIG. 3 is an exploded plan view of a battery module, a gasket, and a separator in the battery tray of FIG. 1;
  • FIG. 4 is an exploded perspective view of a battery module, a gasket, and a separator in the battery tray of FIG. 1;
  • FIG. 5 is a schematic perspective view of a battery tray according to another embodiment of the present disclosure.
  • FIG. 6 is a schematic perspective view of the battery tray of FIG. 5, showing a gasket at the same time;
  • FIG. 7 is a schematic top view of the battery tray of FIG. 5, showing a gasket at the same time;
  • FIG. 8 is an assembled perspective view of the battery tray and battery cell of FIG. 5;
  • FIG. 9 is a top view of the assembly of the battery tray and battery cell of FIG. 5;
  • FIG. 10 is a cross-sectional view taken along A-A in FIG. 9;
  • FIG. 11 is a schematic perspective view of a battery tray according to another embodiment of the present disclosure.
  • FIG. 12 is an assembled perspective view of the battery tray and battery cell of FIG. 11;
  • FIG. 13 is a schematic top view of the battery tray and battery cells of FIG. 11;
  • FIG. 14 is a cross-sectional view taken along B-B in FIG. 13;
  • FIG. 15 is a schematic perspective view of a battery tray according to another embodiment of the present disclosure.
  • FIG. 16 is a schematic top view of the battery tray of FIG. 15;
  • FIG. 17 is a cross-sectional view taken along C-C in FIG. 16;
  • FIG. 18 is a schematic perspective view of a battery tray according to another embodiment of the present disclosure.
  • FIG. 19 is a schematic perspective view of a battery tray according to another embodiment of the present disclosure, in which the air intake hole is not shown;
  • 20 is a schematic view of the structure of a vehicle according to the present disclosure.
  • a battery tray 100 and a power battery pack 400 having the battery tray 100 are provided.
  • the power battery pack 400 may further include a cover plate (not shown) and a plurality of battery cells 200.
  • the cover plate and the battery tray 100 are hermetically connected and together form a hermetic seal that houses the plurality of battery cells 200 space.
  • Each battery cell 200 has a cell explosion-proof valve 201 (see FIG. 4).
  • the battery tray 100 includes a tray body. At least a portion of the tray body has a gas channel formed therein.
  • the tray body is provided with a plurality of air inlet holes 31 and at least one exhaust hole communicating with the gas channel.
  • the air inlet holes 31 are arranged opposite to the one-piece explosion-proof valves 201 and correspond to each other. Each air inlet hole 31 is used to introduce flame, smoke or gas inside the battery cell 200 into the gas channel when the corresponding one-piece explosion-proof valve 201 is opened. Inside. The exhaust hole communicates with the gas channel and the external space of the battery pack, and is used to discharge the flame, smoke or gas in the gas channel to the outside of the battery pack. When the air pressure inside the battery cell 200 increases, causing the cell explosion-proof valve 201 to open, the flame, smoke, or gas inside the battery cell 200 is discharged from the battery cell 200 by the cell explosion-proof valve 201, and then rushes to the intake air The hole 31 further enters the interior of the gas channel.
  • the The power battery pack 400 further includes a gasket 300, which is disposed between the battery cell 200 and the tray body and has flame retardant performance and certain compressibility.
  • the gasket 300 is provided with a plurality of through holes 301, through holes 301 corresponds to the air inlet holes 31 on the tray body one by one, and each through hole 301 is located between the corresponding air inlet hole 31 and the single explosion-proof valve 201.
  • the pressing of the battery cell 200 and the tray body causes the gasket 300 to form a seal around the air inlet hole 31 to prevent flame, smoke, or gas from leaking into the battery housing space.
  • the battery tray 100 further includes a battery pack explosion-proof valve 40 installed on the exhaust hole to block the exhaust hole through the battery pack explosion-proof valve 40.
  • the flame, smoke or gas discharged from the single explosion-proof valve 201 enters through the air inlet hole 31 and accumulates in the gas channel.
  • the battery pack explosion-proof valve 40 opens to accumulate in the gas channel The flame, smoke or gas is exhausted.
  • the battery pack explosion-proof valve 40 and the single-piece explosion-proof valve 201 are well known to those skilled in the art, and their structures and working principles will not be repeated here.
  • the battery tray 100 may have any appropriate structure, which is not limited in the present disclosure.
  • the following specifically introduces several embodiments of the battery tray 100. It should be understood that these embodiments are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.
  • the tray body includes a bottom plate 10, a side beam 20, and a plurality of separators 30.
  • the side beam 20 is disposed around the bottom plate 10 and defines the battery together with the bottom plate 10
  • the separator 30 is provided on the bottom plate 10, and the separator 30 divides the bottom plate 10 into several areas for placing the battery cells 200, and gas passages are formed inside the separator 30 and the side beams 20 and penetrate each other.
  • the air inlet hole 31 is provided on the partition plate 30, and the air outlet hole is provided on the side beam 20.
  • the flame, smoke, or gas discharged from the single explosion-proof valve 201 enters the gas channel inside the partition 30 through the air inlet 31 on the partition 30, and then diffuses from the gas channel inside the partition 30 to The gas channel inside the side beam 20, when the gas pressure in the gas channel reaches a certain value, the battery pack explosion-proof valve 40 on the side beam 20 is opened, and the flame, smoke or gas accumulated in the gas channel is discharged to the battery through the battery pack explosion-proof valve 40 Outsourcing.
  • a plurality of battery cells 200 constitute a battery module, and a gasket 300 is disposed between the battery module and the separator 30, and each gasket 300 is disposed on There are a plurality of through holes 301, and the through holes 301 correspond to the air inlet holes 31 on the partition plate 30 one by one, and each through hole 301 is located between the corresponding air inlet hole 31 and the single explosion-proof valve 201.
  • the tray body includes a bottom plate 10, a side beam 20, and a plurality of partitions 30.
  • the side beam 20 is disposed around the bottom plate 10 and is defined together with the bottom plate 10
  • a battery accommodating space a separator 30 is provided on the bottom plate 10, the separator 30 divides the bottom plate 10 into several areas for placing the battery cells 200, and gas channels are formed inside the separator 30 and the bottom plate 10 and penetrate each other,
  • the air inlet hole 31 is provided on the partition plate 30, and the air outlet hole is provided on the bottom plate 10.
  • the flame, smoke, or gas discharged from the single explosion-proof valve 201 enters the gas channel inside the partition 30 through the air intake hole 31 on the partition 30, and then diffuses from the gas channel inside the partition 30 to the bottom
  • the explosion-proof valve 40 of the battery pack on the bottom plate 10 opens, and the flame, smoke, or gas accumulated in the gas passage is discharged to the outside of the battery pack through the explosion-proof valve 40 of the battery pack.
  • the tray body includes a bottom plate 10, a side beam 20, and a plurality of partitions 30.
  • the side beams 20 are disposed around the bottom plate 10 and jointly define a battery accommodating space with the bottom plate 10.
  • the partition 30 is provided in On the bottom plate 10, the partition plate 30 divides the bottom plate 10 into several areas for placing the battery cells 200.
  • Both the interior of the partition plate 30 and the side beam 20 are formed with gas channels and penetrate each other, and a part of the intake holes 31 are provided in the partition On the plate 30, another part of the intake hole 31 is provided on the side beam 20, and the exhaust hole is provided on the side beam 20.
  • the flame, smoke or gas discharged from the single explosion-proof valve 201 enters the gas passage inside the partition 30 through the air inlet hole 31 on the partition 30; or, the flame discharged from the single explosion-proof valve 201 , Smoke or gas enters the gas channel inside the side beam 20 through the air inlet hole 31 on the side beam 20; or, part of the flame, smoke or gas discharged from the single explosion-proof valve 201 enters through the air inlet hole 31 on the partition 30 Part of the gas channel inside the partition 30 enters the gas channel inside the side beam 20 through the air inlet hole 31 on the side beam 20.
  • the battery pack explosion-proof valve 40 on the side beam 20 opens The flame, smoke or gas accumulated in the gas passage is discharged to the outside of the battery pack through the battery pack explosion-proof valve 40.
  • the tray body includes a bottom plate 10, a side beam 20, and a plurality of partition plates 30.
  • the side beam 20 is disposed around the bottom plate 10 and defines a battery accommodating space together with the bottom plate 10, and the partition plate 30 is disposed at On the bottom plate 10, the partition plate 30 divides the bottom plate 10 into several areas for placing the battery cells 200.
  • Both the interior of the partition plate 30 and the bottom plate 10 are formed with gas channels and penetrate each other, and a part of the intake holes 31 are provided in the partition plate On 30, another part of the intake hole 31 is provided on the bottom plate 10, and the exhaust hole is provided on the bottom plate 10.
  • the flame, smoke, or gas discharged from the single explosion-proof valve 201 enters the gas passage inside the partition 30 through the air inlet hole 31 on the partition 30, or the flame discharged from the single explosion-proof valve 201 , Smoke or gas enters the gas channel inside the bottom plate 10 through the air inlet hole 31 on the bottom plate 10; or, part of the flame, smoke or gas discharged from the single explosion-proof valve 201 enters the partition plate through the air inlet hole 31 on the partition plate 30 Part of the internal gas channel of 30 enters the gas channel inside the bottom panel 10 through the air inlet hole 31 on the bottom panel 10.
  • the battery pack explosion-proof valve 40 on the bottom panel 10 opens and accumulates in the gas channel The flame, smoke or gas is discharged out of the battery pack through the battery pack explosion-proof valve 40.
  • the tray body includes a bottom plate 10, a side beam 20, and a plurality of partition plates 30.
  • the side beam 20 is disposed around the bottom plate 10 and defines a battery accommodating space together with the bottom plate 10, and the partition plate 30 is disposed at On the bottom plate 10, the partition plate 30 divides the bottom plate 10 into several areas for placing the battery cells 200.
  • the partition plate 30, the side beams 20, and the bottom plate 10 are all formed with gas passages and penetrate each other, and a part of the air intake holes 31 is provided in the partition plate 30, a part of the air inlet holes 31 are provided in the side beam 20, a part of the air inlet holes 31 are provided in the bottom plate 10, and the air discharge holes are provided in the side beam 20.
  • the flame, smoke, or gas discharged from the single explosion-proof valve 201 enters the gas passage inside the partition 30 through the air inlet 31 on the partition 30, or through the air inlet 31 on the bottom plate 10 Enter the gas channel inside the bottom plate 10, or enter the gas channel inside the side beam 20 through the air inlet hole 31 on the side beam 20, or enter the gas channel through any two of the partition 30, the bottom plate 10, and the side beam 20
  • the air hole 31 enters the corresponding gas channel, or enters the corresponding gas channel through the air inlet holes 31 on the partition plate 30, the bottom plate 10, and the side beam 20, respectively.
  • the side beam 20 When the gas pressure in the gas channel reaches a certain value, the side beam 20 The explosion-proof valve 40 of the battery pack is opened, and the flame, smoke or gas accumulated in the gas passage is discharged to the outside of the battery pack through the explosion-proof valve 40 of the battery pack.
  • the tray body includes a bottom plate 10, a side beam 20, and a plurality of partitions 30.
  • the side beams 20 are arranged around the bottom plate 10 and jointly define a battery accommodating space with the bottom plate 10, and the partition plate 30 is provided at On the bottom plate 10, the partition plate 30 divides the bottom plate 10 into several areas for placing the battery cells 200.
  • the partition plate 30, the side beams 20, and the bottom plate 10 are all formed with gas passages and penetrate each other, and a part of the air intake holes 31 is provided in the partition plate 30, a part of the intake holes 31 is provided in the side beam 20, and a part of the intake holes 31 is provided in the bottom plate 10, and the exhaust holes are provided in the bottom plate 10.
  • the flame, smoke, or gas discharged from the single explosion-proof valve 201 enters the gas passage inside the partition 30 through the air inlet 31 on the partition 30, or through the air inlet 31 on the bottom plate 10 Enter the gas channel inside the bottom plate 10, or enter the gas channel inside the side beam 20 through the air inlet hole 31 on the side beam 20, or enter the gas channel through any two of the partition 30, the bottom plate 10, and the side beam 20
  • the air hole 31 enters the corresponding gas channel, or enters the corresponding gas channel through the air inlet holes 31 on the partition 30, the bottom plate 10, and the side beam 20, respectively.
  • the The explosion-proof valve 40 of the battery pack is opened, and the flame, smoke or gas accumulated in the gas passage is discharged to the outside of the battery pack through the explosion-proof valve 40 of the battery pack.
  • the tray body includes a bottom plate 10, a side beam 20, and a plurality of partition plates 30.
  • the side beams 20 are disposed around the bottom plate 10 and jointly define a battery accommodating space with the bottom plate 10.
  • the partition plate 30 is provided at On the bottom plate 10, the partition plate 30 divides the bottom plate 10 into several areas for placing the battery cells 200.
  • the partition plate 30, the side beams 20, and the bottom plate 10 are all formed with gas passages and penetrate each other, and a part of the air intake holes 31 is provided on the partition plate 30, a part of the air inlet holes 31 are provided on the side beam 20, a part of the air inlet holes 31 are provided on the bottom plate 10, a part of the air discharge holes are provided on the side beam 20, and the other part of the air discharge holes are provided on the bottom plate 10 on.
  • the flame, smoke, or gas discharged from the single explosion-proof valve 201 enters the gas passage inside the partition 30 through the air inlet 31 on the partition 30, or through the air inlet 31 on the bottom plate 10 Enter the gas channel inside the bottom plate 10, or enter the gas channel inside the side beam 20 through the air inlet hole 31 on the side beam 20, or enter the gas channel through any two of the partition 30, the bottom plate 10, and the side beam 20
  • the air hole 31 enters the corresponding gas channel, or enters the corresponding gas channel through the air inlet holes 31 on the partition 30, the bottom plate 10, and the side beam 20, respectively.
  • the battery pack explosion-proof valve 40 is opened, or the battery pack explosion-proof valve 40 on the side beam 20 is opened, or the battery pack explosion-proof valve 40 on the bottom plate 10 and the side beam 20 is opened, and the flame, smoke or gas accumulated in the gas passage passes The battery pack explosion-proof valve 40 is discharged outside the battery pack.
  • the tray body includes a bottom plate 10, a side beam 20, and a plurality of partition plates 30.
  • the side beam 20 is disposed around the bottom plate 10 and defines a battery accommodating space together with the bottom plate 10, and the partition plate 30 is disposed at On the bottom plate 10, the partition plate 30 divides the bottom plate 10 into a plurality of areas for placing the battery cells 200.
  • the interior of the partition plate 30, the side beams 20, and the bottom plate 10 are all formed with gas channels and penetrate each other, and the air inlet hole 31
  • the partition 30 is provided, a part of the exhaust holes are provided on the side beam 20, and the other part of the exhaust holes are provided on the bottom plate 10.
  • the flame, smoke or gas discharged from the single explosion-proof valve 201 enters the gas channel inside the partition 30 through the air inlet hole 31 on the partition 30, and when the gas pressure in the gas channel reaches a certain value,
  • the battery pack explosion-proof valve 40 on the bottom plate 10 is opened, or the battery pack explosion-proof valve 40 on the side beam 20 is opened, or the battery pack explosion-proof valve 40 on the bottom plate 10 and the side beam 20 is opened, the flame accumulated in the gas channel, Smoke or gas is discharged out of the battery pack through the battery pack explosion-proof valve 40.
  • the tray body includes a bottom plate 10, a side beam 20, and a plurality of partition plates 30.
  • the side beam 20 is disposed around the bottom plate 10 and defines a battery accommodating space together with the bottom plate 10, and the partition plate 30 is disposed at On the bottom plate 10, the partition plate 30 divides the bottom plate 10 into several areas for placing the battery cells 200.
  • the partition plate 30, the side beams 20, and the bottom plate 10 are all formed with gas passages and penetrate each other, and a part of the air intake holes 31 is provided on the partition plate 30, another part of the intake hole 31 is provided on the side beam 20, a part of the exhaust hole is provided on the side beam 20, and the other part of the exhaust hole is provided on the bottom plate 10.
  • the flame, smoke, or gas discharged from the single explosion-proof valve 201 enters the gas passage inside the partition 30 through the air inlet 31 on the partition 30, or through the air inlet on the side beam 20 31 enters the gas passage inside the side beam 20, or partly enters the gas passage inside the partition 30 through the air inlet hole 31 on the partition 30, and partly enters the gas passage inside the side beam 20 through the air inlet 31 on the side beam 20
  • the air pressure in the gas channel reaches a certain value
  • the battery pack explosion-proof valve 40 on the bottom plate 10 opens, or the battery pack explosion-proof valve 40 on the side beam 20 opens, or the battery pack on the bottom plate 10 and the side beam 20 explodes
  • the valves 40 are all opened, and the flame, smoke or gas accumulated in the gas passage is discharged to the outside of the battery pack through the battery pack explosion-proof valve 40.
  • the tray body includes a bottom plate 10, a side beam 20, and a plurality of partition plates 30.
  • the side beam 20 is disposed around the bottom plate 10 and defines a battery accommodating space together with the bottom plate 10, and the partition plate 30 is provided at On the bottom plate 10, the partition plate 30 divides the bottom plate 10 into several areas for placing the battery cells 200.
  • the partition plate 30, the side beams 20, and the bottom plate 10 are all formed with gas passages and penetrate each other, and a part of the air intake holes 31 is provided on the partition plate 30, another part of the intake hole 31 is provided on the bottom plate 10, a part of the exhaust hole is provided on the side beam 20, and another part of the exhaust hole is provided on the bottom plate 10.
  • the flame, smoke, or gas discharged from the single explosion-proof valve 201 enters the gas passage inside the partition 30 through the air inlet 31 on the partition 30, or through the air inlet 31 on the bottom plate 10 Enter the gas channel inside the bottom plate 10, or a part of the air intake hole 31 on the partition plate 30 enters the gas channel inside the partition plate 30, partly enters the gas channel inside the bottom plate 10 through the air inlet hole 31 on the bottom plate 10, when the gas channel
  • the battery pack explosion-proof valve 40 on the bottom plate 10 opens, or the battery pack explosion-proof valve 40 on the side beam 20 opens, or the battery pack explosion-proof valve 40 on the bottom plate 10 and the side beam 20 opens,
  • the flame, smoke or gas accumulated in the gas passage is discharged out of the battery pack through the battery pack explosion-proof valve 40.
  • the tray body includes a bottom plate 10, a side beam 20, and a plurality of partitions 30.
  • the side beams 20 are disposed around the bottom plate 10 and jointly define a battery accommodating space with the bottom plate 10, and the partition 30 is provided
  • the separator 30 divides the bottom plate 10 into several areas for placing the battery cells 200, and gas passages are formed inside the separator 30, inside the side beam 20, and inside the bottom plate 10, and the separator 30
  • the internal gas channel penetrates the gas channel inside the side beam 20, the gas channel inside the side beam 20 penetrates the gas channel inside the bottom plate 10, and the gas channel inside the separator 30 passes through the side beam
  • the gas channel inside 20 communicates with the gas channel inside the bottom plate 10, the air inlet hole 31 is provided on the partition plate 30, and the air outlet hole is provided on the bottom board 10.
  • the flame, smoke, or gas discharged from the single explosion-proof valve 201 enters the gas channel inside the partition 30 through the air inlet hole 31 on the partition 30, and diffuses from the gas channel inside the partition 30 to The gas channel inside the side beam 20 diffuses from the gas channel inside the side beam 20 to the gas channel inside the bottom plate 10.
  • the battery pack explosion-proof valve 40 on the bottom plate 10 opens, and the gas channel The flame, smoke or gas accumulated inside is discharged to the outside of the battery pack through the battery pack explosion-proof valve 40.
  • the tray body includes a bottom plate 10, a side beam 20, and a plurality of partitions 30.
  • the side beams 20 are disposed around the bottom plate 10 and jointly define a battery accommodating space with the bottom plate 10, and the partition 30 is provided
  • the separator 30 divides the bottom plate 10 into several areas for placing the battery cells 200, and gas passages are formed inside the separator 30, inside the side beam 20, and inside the bottom plate 10, and the separator 30
  • the internal gas channel penetrates the gas channel inside the bottom plate 10, the gas channel inside the bottom plate 10 penetrates the gas channel inside the side beam 20, and the gas channel inside the separator 30 passes through the inside of the bottom plate 10 Is connected to the gas channel inside the side beam 20, the air inlet hole 31 is provided on the partition plate 30, and the air outlet hole is provided on the side beam 20.
  • the flame, smoke, or gas discharged from the single explosion-proof valve 201 enters the gas channel inside the partition 30 through the air inlet hole 31 on the partition 30, and diffuses from the gas channel inside the partition 30 to The gas channel inside the bottom plate 10 diffuses from the gas channel inside the bottom plate 10 to the gas channel inside the side beam 20.
  • the battery pack explosion-proof valve 40 on the side beam 20 opens and the gas channel The flame, smoke or gas accumulated inside is discharged to the outside of the battery pack through the battery pack explosion-proof valve 40.
  • the tray body includes a bottom plate 10 and side beams 20.
  • the side beams 20 are disposed around the bottom plate 10 and jointly define the battery receiving space with the bottom plate 10.
  • the side beams A gas channel is formed inside the 20, and the intake hole 31 and the exhaust hole are both provided on the side beam 20.
  • the gas channel is formed in the side beam 20, and the flame, smoke or gas discharged from the single explosion-proof valve 201 enters the gas channel inside the side beam 20 through the air inlet 31 on the side beam 20.
  • the battery pack explosion-proof valve 40 on the side beam 20 is opened, and the flame, smoke, or gas accumulated in the gas channel is discharged to the outside of the battery pack through the battery pack explosion-proof valve 40.
  • a plurality of battery cells 200 form a battery module
  • a gasket 300 is provided between the battery module and the side beam 20
  • each gasket 300 is provided with a number of The through holes 301 correspond to the air inlet holes 31 on the side beam 20 one by one.
  • Each through hole 301 is located between the corresponding air inlet hole 31 and the single explosion-proof valve 201.
  • the battery cell 200 thermally loses control, it generally generates tens or even hundreds of liters of smoke or gas in a short period of time.
  • the exhaust path is shorter, so that smoke or gas is discharged faster, and the safety of the battery pack is improved.
  • the tray body includes a bottom plate 10 and side beams 20.
  • the side beams 20 are disposed around the bottom plate 10 and jointly define a battery receiving space with the bottom plate 10.
  • the bottom plate 10 A gas passage is formed inside, and both the inlet hole 31 and the exhaust hole are provided on the bottom plate 10.
  • the gas channel is formed in the bottom plate 10, and the flame, smoke, or gas discharged from the single explosion-proof valve 201 enters the gas channel inside the bottom plate 10 through the air inlet hole 31 on the bottom plate 10.
  • the battery pack explosion-proof valve 40 on the bottom plate 10 opens, and the flame, smoke, or gas accumulated in the gas channel is discharged to the outside of the battery pack through the battery pack explosion-proof valve 40.
  • a plurality of battery cells 200 form a battery module, and a gasket 300 is disposed between the battery module and the side beam 20, and each gasket 300 A plurality of through holes 301 are provided, and the through holes 301 correspond one-to-one with the air inlet holes 31 on the bottom plate 10, and each through hole 301 is located between the corresponding air inlet hole 31 and the single explosion-proof valve 201.
  • the battery cell 200 thermally loses control, it generally generates tens or even hundreds of liters of smoke or gas in a short period of time.
  • the exhaust path is shorter, so that smoke or gas is exhausted faster, and the safety of the battery pack is improved.
  • the tray body includes a bottom plate 10 and side beams 20.
  • the side beams 20 are disposed around the bottom plate 10 and jointly define the battery accommodating space with the bottom plate 10. Gas channels are formed inside the bottom plate 10 and penetrate each other.
  • the intake holes 31 are provided on the bottom plate 10 and the exhaust holes are provided on the side beam 20.
  • the flame, smoke or gas discharged from the single explosion-proof valve 201 enters the gas channel inside the bottom panel 10 through the air inlet hole 31 on the bottom panel 10, and then diffuses from the gas channel inside the bottom panel 10 to the inside of the side beam 20
  • the battery pack explosion-proof valve 40 on the side beam 20 opens, and the flame, smoke, or gas accumulated in the gas channel is discharged to the outside of the battery pack through the battery pack explosion-proof valve 40.
  • the tray body includes a bottom plate 10 and side beams 20.
  • the side beams 20 are disposed around the bottom plate 10 and jointly define the battery accommodating space with the bottom plate 10. Both the side beam 20 and the bottom plate 10 are formed with The gas passages penetrate each other, the air inlet hole 31 is provided on the side beam 20, and the air outlet hole is provided on the bottom plate 10.
  • the flame, smoke or gas discharged from the single explosion-proof valve 201 enters the gas channel inside the side beam 20 through the air inlet hole 31 on the side beam 20, and then diffuses from the gas channel inside the side beam 20 to the bottom plate 10 Inside the gas channel, when the air pressure in the gas channel reaches a certain value, the battery pack explosion-proof valve 40 on the bottom edge 10 is opened, and the flame, smoke or gas accumulated in the gas channel is discharged to the outside of the battery pack through the battery pack explosion-proof valve 40 .
  • the battery tray 100 may be rectangular, including a rectangular bottom plate 10 and side beams 20 disposed around the bottom plate 10.
  • the side beam 20 may be made into an integral structure with the bottom plate 10, or may be a split structure, for example, the side beam 20 is installed around the bottom plate by welding or other processes.
  • the side beam 20 may be an integrated structure, and may be formed by welding four side beams 20 end to end or connected by other processes.
  • the partition 30 may be made into an integral structure with the bottom plate 10, or may be a split structure, for example, the partition 30 is connected to the bottom plate 10 by welding or other processes.
  • the battery tray 100 is provided with a separator 30 inside.
  • the separator 30 serves to reinforce the battery tray 100, and at least a part of the air inlet holes 31 is provided on the separator 30.
  • the air intake hole 31 can be directly provided on the side beam 20 It can be set directly on the bottom plate 10, or directly on the side beam 20 and the bottom plate 10.
  • the separator 30 may be arranged in the battery tray according to any suitable arrangement, which is not limited in this disclosure.
  • the partition plates 30 may be parallel to each other and spaced apart from each other.
  • the partition plate 30 is perpendicular to the bottom plate 10, and both ends of the partition plate 30 are connected to the side beam 20.
  • the partition 30 may also include one or more longitudinal partitions 31 extending along the length of the tray body and one or more horizontal partitions extending along the width of the tray body 32.
  • the longitudinal partitions 31 and the transverse partitions 32 are arranged crosswise. The two ends of the longitudinal partitions 31 are connected to the side beam 20, and the two ends of the transverse partitions 32 are connected to the side beam 20.
  • the gas channel formed inside the tray body is used to receive and store the flame, smoke or gas discharged from the battery cell 200, and all the smoke and gas discharged from the battery cell 200 may enter through the corresponding air inlet hole 31
  • the gas channel, the battery pack explosion-proof valve 40 is used to control the exhaust of the gas channel.
  • the disclosure does not limit the number of gas channels, and one battery cell 200 may correspond to one gas channel, or a plurality of battery cells 200 may share one gas channel.
  • only one gas channel may be formed inside the side beam 20, and the gas channel penetrates through the gas channel inside each partition 30; or a plurality of mutual gas channels may be formed inside the side beam 20.
  • Independent gas channels, the gas channels inside each partition 30 only pass through the corresponding gas channels inside the side beam 20.
  • only one gas channel may be formed inside the bottom plate 10, and the gas channel penetrates through the gas channel inside each partition 30; or a plurality of independent ones may be formed inside the bottom plate 10
  • the gas channel inside each partition 30 only penetrates the corresponding gas channel inside the bottom plate 10.
  • only one gas channel may be formed inside the side beam 20, and all the battery cells 200 share the gas channel, that is, all the inlet holes 31 and the exhaust holes are
  • the gas channels are connected; there may also be multiple independent gas channels formed inside the side beam 20, each gas channel corresponding to a plurality of battery cells 200, that is, each gas channel has a plurality of inlet holes 31 and at least one row
  • each gas channel is formed inside the bottom plate 10, and all the battery cells 200 share the gas channel, that is, all the inlet holes 31 and the exhaust holes are connected to the gas
  • the channels are connected; there may also be multiple independent gas channels formed in the bottom plate 10, each gas channel corresponding to a plurality of battery cells 200, that is, each gas channel has a plurality of intake holes 31 and at least one exhaust hole
  • a plurality of mutually independent gas channels are formed inside the bottom plate 10, and each gas channel corresponds to a battery cell 200, that is, each gas channel has an intake hole 31 and an exhaust hole.
  • each gas channel corresponds to a plurality of battery cells 200, that is, the plurality of battery cells 200 may share a gas channel, which may reduce exhaust holes and battery packs
  • the number of explosion-proof valves 40 makes the number of exhaust holes and the number of battery pack explosion-proof valves 40 smaller than the number of intake holes 31, thereby reducing the difficulty of processing the tray body and reducing the number of battery pack explosion-proof valves 40 required The quantity reduces the manufacturing cost.
  • the number of battery pack explosion-proof valves 40 may be one, two, three, or more, which is not limited in the present disclosure.
  • the number of the gaskets 300 may be equal to the number of the separators 30 and correspond to the separators 30 one by one.
  • the gasket 300 can be integrally formed, or can be arranged separately.
  • the gasket is arranged separately, which is convenient for matching battery cells with different numbers
  • the material of the gasket is not particularly limited in this application, specifically, it may be one or a combination of polyurethane foam material, silicone foam, and flame retardant polypropylene foam material .
  • the upper edge of the side beam 20 may be provided with a plurality of first mounting holes 21, and bolts pass through the first mounting holes 21 and are connected to the cover plate, thereby realizing the side beam 20 and the cover plate Connection.
  • the upper edge of the partition 30 may be flush with the upper edge of the side beam 20, and the upper edge of the partition 30 may be provided with a second mounting hole 32 The bolt passes through the second mounting hole 32 and is connected to the cover plate, so as to realize the connection between the partition plate 30 and the cover plate.
  • one or more mounting blocks 50 may be provided on the outer side of the side beam 20
  • one or more third mounting holes 51 are provided on the mounting block 50, and the bolts pass through the third mounting holes 51 And connected to the bottom of the vehicle 500, thereby fixing the battery tray 100 to the bottom of the vehicle 500.
  • a smoke or gas sensor is provided in the battery tray.
  • the explosion-proof valve opens to release gas or smoke.
  • the volume is large, and the released gas or smoke will diffuse around the battery tray and be diluted.
  • the smoke or gas sensor may not be able to detect the exhaust gas or smoke in time, and the sensitivity is reduced.
  • the battery tray The smoke channel or gas sensor (not shown) is installed in the gas channel of 100.
  • the space of the gas channel is significantly smaller than the volume of the battery tray, and the gas channel will exclude the corresponding smoke or gas in a predetermined direction.
  • the smoke or gas sensor will sense the corresponding smoke or gas, and the smoke or gas sensor will feed back the signal to the vehicle control system to remind the driver to react or start the gas fire of the battery pack. Flame retardant and other actions improve the safety of the battery pack.
  • the present disclosure does not specifically limit the position of the smoke and gas sensors in the gas channel and the number of smoke and gas sensors.
  • the smoke is close to the exhaust The air hole position is set, or the gas sensor is set near the exhaust hole position, or the smoke and the gas sensor are set near the exhaust hole position, and the corresponding gas or smoke can be detected more sensitively.
  • a vehicle 500 including the power battery pack 400 as described above.

Abstract

本公开涉及一种动力电池包及车辆，动力电池包包括电池托盘(100)和设置在电池托盘(100)上的若干电池单体(200)，每个电池单体(200)具有单体防爆阀(201)，电池托盘(100)包括托盘本体，托盘本体的至少一部分内部形成有气体通道，托盘本体上设置有若干进气孔(31)和至少一个排气孔，至少部分进气孔(31)与单体防爆阀(201)相对设置且一一对应。

Description

动力电池包及车辆
相关申请的交叉引用
本公开基于申请号为201811647593.5，申请日为2018年12月29日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本公开作为参考。
技术领域
本公开涉及电动汽车领域，具体地，涉及一种动力电池包及车辆。
背景技术
动力电池包作为能量存储装置，是混合动力汽车和电动汽车的核心部件。动力电池包主要由若干电池单体、电池托盘、盖板组成。电池托盘安装在汽车底部，盖板与电池托盘密封连接并共同形成容纳所述若干电池单体的密闭空间。为了防止爆炸事故发生，电池单体上通常设置有防爆阀结构。在电池使用过程中，如果内部气压增大到一定程度，则防爆阀开启，电池单体内部的火焰、烟雾或气体通过防爆阀排出。现有技术中，电池单体上的防爆阀开启后，排出的火焰、烟雾或气体会积聚在电池包内部，无法及时排出，容易对电池造成二次伤害或者影响其他电池。
发明内容
本公开提供一种动力电池包，该动力电池包能够有效防止电池单体排出的火焰、烟雾或气体积聚在电池包内部。
为了实现上述目的，本公开提供一种动力电池包，包括电池托盘和设置在所述电池托盘上的若干电池单体，每个电池单体具有单体防爆阀，所述电池托盘包括托盘本体，所述托盘本体的至少一部分内部形成有气体通道，所述托盘本体上设置有若干进气孔和至少一个排气孔，至少部分所述进气孔与单体防爆阀相对设置且一一对应，使得从每个单体防爆阀排出的火焰、烟雾或气体经由对应的进气孔进入所述气体通道，所述排气孔用于将所述气体通道内的火焰、烟雾或气体排出。
根据本公开的一些实施例，所述托盘本体的至少一部分为中空结构，所述中空结构 作为所述气体通道。
根据本公开的一些实施例，所述电池托盘还包括电池包防爆阀，所述排气孔通过所述电池包防爆阀封堵。
根据本公开的一些实施例，所述托盘本体包括底板和边梁，所述边梁设置在所述底板的四周并与所述底板共同限定出电池单体的容纳空间，所述边梁内部形成有气体通道，所述进气孔和所述排气孔均设置在所述边梁上。
根据本公开的一些实施例，所述托盘本体包括底板和边梁，所述边梁设置在所述底板的四周并与所述底板共同限定出电池单体的容纳空间，所述边梁内部和所述底板内部均形成有气体通道且相互贯通，所述进气孔设置在所述边梁上，所述排气孔均设置在所述底板上。
根据本公开的一些实施例，所述托盘本体包括底板和边梁，所述边梁设置在所述底板的四周并与所述底板共同限定出电池单体的容纳空间，所述底板内部形成有气体通道，所述进气孔和所述排气孔均设置在所述底板上。
根据本公开的一些实施例，所述托盘本体包括底板和边梁，所述边梁设置在所述底板的四周并与所述底板共同限定出电池单体的容纳空间，所述边梁内部和所述底板内部均形成有气体通道且相互贯通，所述进气孔设置在所述底板上，所述排气孔设置在所述边梁上。
根据本公开的一些实施例，所述托盘本体包括底板、边梁、以及若干个隔板，所述边梁设置在所述底板的四周并与所述底板共同限定出电池单体的容纳空间，所述隔板设置在所述底板上并且将所述底板分隔成若干个用于放置电池单体的区域，所述隔板内部和所述边梁内部均形成有气体通道且相互贯通，所述进气孔设置在所述隔板上，所述排气孔设置在所述边梁上。
根据本公开的一些实施例，所述托盘本体包括底板、边梁、以及若干个隔板，所述边梁设置在所述底板的四周并与所述底板共同限定出电池单体的容纳空间，所述隔板设置在所述底板上并且将所述底板分隔成若干个用于放置电池单体的区域，所述隔板内部和所述底板内部均形成有气体通道且相互贯通，所述进气孔设置在所述隔板上，所述排气孔设置在所述底板上。
根据本公开的一些实施例，所述托盘本体包括底板、边梁、以及若干个隔板，所述边梁设置在所述底板的四周并与所述底板共同限定出电池单体的容纳空间，所述隔板设置在所述底板上并且将所述底板分隔成若干个用于放置电池单体的区域，所述隔板内部、所述边梁内部和所述底板内部均形成有气体通道，且所述隔板内部的气体通道与所 述边梁内部的气体通道贯通，所述边梁内部的气体通道与所述底板内部的气体通道贯通，所述进气孔设置在所述隔板上，所述排气孔设置在所述底板上。
根据本公开的一些实施例，所述托盘本体包括底板、边梁、以及若干个隔板，所述边梁设置在所述底板的四周并与所述底板共同限定出电池单体的容纳空间，所述隔板设置在所述底板上并且将所述底板分隔成若干个用于放置电池单体的区域，所述隔板内部、所述边梁内部和所述底板内部均形成有气体通道，且所述隔板内部的气体通道与所述底板内部的气体通道贯通，所述底板内部的气体通道与所述边梁内部的气体通道贯通，所述进气孔设置在所述隔板上，所述排气孔设置在所述边梁上。
根据本公开的一些实施例，所述托盘本体包括底板、边梁、以及若干个隔板，所述边梁设置在所述底板的四周并与所述底板共同限定出电池单体的容纳空间，所述隔板设置在所述底板上并且将所述底板分隔成若干个用于放置电池单体的区域，所述隔板内部和所述边梁内部均形成有气体通道且相互贯通，一部分进气孔设置在所述隔板上，另一部分进气孔设置在所述边梁上，所述排气孔设置在所述边梁上。
根据本公开的一些实施例，所述托盘本体包括底板、边梁、以及若干个隔板，所述边梁设置在所述底板的四周并与所述底板共同限定出电池单体的容纳空间，所述隔板设置在所述底板上并且将所述底板分隔成若干个用于放置电池单体的区域，所述隔板内部和所述底板内部均形成有气体通道且相互贯通，一部分进气孔设置在所述隔板上，另一部分进气孔设置在所述底板上，所述排气孔设置在所述底板上。
根据本公开的一些实施例，所述托盘本体包括底板、边梁、以及若干个隔板，所述边梁设置在所述底板的四周并与所述底板共同限定出电池单体的容纳空间，所述隔板设置在所述底板上并且将所述底板分隔成若干个用于放置电池单体的区域，所述隔板内部、所述边梁内部和所述底板内部均形成有气体通道且相互贯通，一部分进气孔设置在所述隔板上，另一部分进气孔设置在所述边梁和所述底板的至少一个上，所述排气孔设置在所述边梁和所述底板中的至少一个上。
根据本公开的一些实施例，所述电池托盘还包括烟雾和气体感应器中的至少一个，所述烟雾和气体感应器中的至少一个设置在所述气体通道内。
根据本公开的一些实施例，所述动力电池包还包括密封垫，所述密封垫设置在所述电池单体和托盘本体之间，所述密封垫上设置有通孔，所述通孔与所述进气孔一一对应，所述通孔位于对应的进气孔和单体防爆阀之间。
根据本公开的一些实施例，所述动力电池包还包括盖板，所述盖板与所述电池托盘密封连接并共同形成用于容纳所述若干电池单体的密闭空间。
通过上述技术方案，一旦某一电池单体内部气压增大，致使其上的单体防爆阀开启时，该电池单体内部的火焰、烟雾或气体将直接通过托盘本体上的进气孔进入托盘本体的气体通道内，使得该火焰、烟雾或气体不会进入电池单体的容纳空间，从而避免该火焰、烟雾或气体对电池造成二次伤害或者影响其他电池。
本公开还提供一种车辆，包括如上所述的动力电池包。
本公开的其他特征和优点将在随后的具体实施方式部分予以详细说明。
附图说明
附图是用来提供对本公开的理解，并且构成说明书的一部分，与下面的具体实施方式一起用于解释本公开，但并不构成对本公开的限制。在附图中：
图1是根据本公开的一种实施例的电池托盘的立体示意图；
图2是图1的电池托盘的俯视图；
图3是电池模组、密封垫、以及图1的电池托盘中的隔板的分解俯视图；
图4是电池模组、密封垫、以及图1的电池托盘中的隔板的分解立体图；
图5是根据本公开的另一种实施例的电池托盘的立体示意图；
图6是图5的电池托盘的立体示意图，同时示出了密封垫；
图7是图5的电池托盘的俯视示意图，同时示出了密封垫；
图8是图5的电池托盘与电池单体的装配立体图；
图9是图5的电池托盘与电池单体的装配俯视图；
图10是沿图9中A-A截取的剖视图；
图11是根据本公开的另一种实施例的电池托盘的立体示意图；
图12是图11的电池托盘与电池单体的装配立体图；
图13是图11的电池托盘与电池单体的俯视示意图；
图14是沿图13中B-B截取的剖视图；
图15是根据本公开的另一种实施例的电池托盘的立体示意图；
图16是图15的电池托盘的俯视示意图；
图17是沿图16中C-C截取的剖视图；
图18是根据本公开的另一种实施例的电池托盘的立体示意图；
图19是根据本公开的另一种实施例的电池托盘的立体示意图，其中未示出进气孔；
图20是根据本公开的车辆的结构示意图。
附图标记说明
100电池托盘           10底板
20边梁                21第一安装孔
30隔板                31进气孔
32第二安装孔          40电池包防爆阀
50安装块              51第三安装孔
200电池单体           201单体防爆阀
300密封垫             301通孔
400动力电池包         500车辆
具体实施方式
以下结合附图对本公开的具体实施方式进行详细说明。应当理解的是，此处所描述的具体实施方式仅用于说明和解释本公开，并不用于限制本公开。
如图1-图20所示，根据本公开的一个方面，提供一种电池托盘100和具有该电池托盘100的动力电池包400。除了电池托盘100之外，该动力电池包400还可以包括盖板(未图示)和若干电池单体200，盖板与电池托盘100密封连接并共同形成容纳所述若干电池单体200的密闭空间。每个电池单体200具有单体防爆阀201(参见图4)。所述电池托盘100包括托盘本体，该托盘本体的至少一部分内部形成有气体通道，托盘本体上设置有与该气体通道连通的若干进气孔31和至少一个排气孔。进气孔31与单体防爆阀201相对设置且一一对应，每个进气孔31用于在对应的单体防爆阀201开启时将电池单体200内部的火焰、烟雾或气体导入气体通道内。排气孔连通气体通道和电池包外部空间，用于将气体通道内的火焰、烟雾或气体排出至电池包外。当电池单体200内部气压增大，致使其上的单体防爆阀201开启时，电池单体200内部的火焰、烟雾或气体由单体防爆阀201排出电池单体200，然后冲向进气孔31，进而进入到气体通道内部。
通过上述技术方案，一旦某一电池单体200内部气压增大，致使其上的单体防爆阀201开启时，电池单体200内部的火焰、烟雾或气体将直接通过托盘本体上的进气孔31进入托盘本体的气体通道内，使得该火焰、烟雾或气体不会进入托盘内部电池单体200的容纳空间，从而避免该火焰、烟雾或气体对电池造成二次伤害或者影响其他电池。
为了避免从单体防爆阀201排出的火焰、烟雾或气体泄漏到电池容纳空间内，根据本公开的一些实施例，如图3-图4、图6-图7、图14所示，所述动力电池包400还包括密封垫300，该密封垫300设置在电池单体200和托盘本体之间且具备阻燃性能和一 定的可压缩性，密封垫300上设置有若干通孔301，通孔301与托盘本体上的进气孔31一一对应，每个通孔301位于对应的进气孔31和单体防爆阀201之间。通过电池单体200和托盘本体的挤压，使得密封垫300在进气孔31周围形成密封，防止火焰、烟雾或气体泄漏到电池容纳空间。
为了防止外界的灰尘和水通过排气孔和气体通道进入到电池容纳空间内，根据本公开的一些实施例，如图1-图2、图5-图9、图11-图13、图17、图18、图19所示，电池托盘100还包括电池包防爆阀40，电池包防爆阀40安装在排气孔上，以通过电池包防爆阀40封堵排气孔。从单体防爆阀201排出的火焰、烟雾或气体通过进气孔31进入并积聚在气体通道内，当气体通道内的气压达到一定值时，电池包防爆阀40开启，将积聚在气体通道内的火焰、烟雾或气体排出。这里，电池包防爆阀40和单体防爆阀201均为本领域技术人员所熟知，在此对它们的结构及工作原理不再赘述。
本公开中，电池托盘100可以具有任意适当的结构，本公开对此不作限制。以下具体介绍电池托盘100的几种实施例，需要理解的是，这些实施例仅用于说明和解释本公开，并不用于限制本公开。
在第一种实施例中，如图1-图4所示，托盘本体包括底板10、边梁20、以及若干隔板30，边梁20设置在底板10的四周并与底板10共同限定出电池容纳空间，隔板30设置在底板10上，隔板30将底板10分隔成若干个用于放置电池单体200的区域，隔板30内部和边梁20内部均形成有气体通道且相互贯通，进气孔31设置在隔板30上，排气孔设置在边梁20上。在这种实施例中，从单体防爆阀201排出的火焰、烟雾或气体通过隔板30上的进气孔31进入隔板30内部的气体通道，再从隔板30内部的气体通道扩散到边梁20内部的气体通道，当气体通道内的气压达到一定值时，边梁20上的电池包防爆阀40开启，气体通道内积累的火焰、烟雾或气体通过电池包防爆阀40排出至电池包外。
在第一种实施例中，如图3-图4所示，多个电池单体200组成电池模组，密封垫300设置在电池模组和隔板30之间，每个密封垫300上设置有若干通孔301，通孔301与隔板30上的进气孔31一一对应，每个通孔301位于对应的进气孔31和单体防爆阀201之间。
在第二种实施例中，如图15-图17所示，托盘本体包括底板10、边梁20、以及若干个隔板30，边梁20设置在底板10的四周并与底板10共同限定出电池容纳空间，隔板30设置在底板10上，隔板30将底板10分隔成若干个用于放置电池单体200的区域，隔板30内部和底板10内部均形成有气体通道且相互贯通，进气孔31设置在隔板30上， 排气孔设置在底板10上。在这种实施例中，从单体防爆阀201排出的火焰、烟雾或气体通过隔板30上的进气孔31进入隔板30内部的气体通道，再从隔板30内部的气体通道扩散到底板10内部的气体通道，当气体通道内的气压达到一定值时，底板10上的电池包防爆阀40开启，气体通道内积累的火焰、烟雾或气体通过电池包防爆阀40排出至电池包外。
由于电池包的上部面向乘客箱，在第二种实施例中，由于排气孔设置在底板10上，因此气体通道内的气体会向下排放，更加安全。
在第三种实施例中，托盘本体包括底板10、边梁20、以及若干个隔板30，边梁20设置在底板10的四周并与底板10共同限定出电池容纳空间，隔板30设置在底板10上，隔板30将底板10分隔成若干个用于放置电池单体200的区域，隔板30内部和边梁20内部均形成有气体通道且相互贯通，一部分进气孔31设置在隔板30上，另一部分进气孔31设置在边梁20上，排气孔设置在边梁20上。在这种实施例中，从单体防爆阀201排出的火焰、烟雾或气体通过隔板30上的进气孔31进入隔板30内部的气体通道；或者，从单体防爆阀201排出的火焰、烟雾或气体通过边梁20上的进气孔31进入边梁20内部的气体通道；或者，从单体防爆阀201排出的火焰、烟雾或气体一部分通过隔板30上的进气孔31进入隔板30内部的气体通道，一部分通过边梁20上的进气孔31进入边梁20内部的气体通道，当气体通道内的气压达到一定值时，边梁20上的电池包防爆阀40开启，气体通道内积累的火焰、烟雾或气体通过电池包防爆阀40排出至电池包外。
在第四种实施例中，托盘本体包括底板10、边梁20、以及若干个隔板30，边梁20设置在底板10的四周并与底板10共同限定出电池容纳空间，隔板30设置在底板10上，隔板30将底板10分隔成若干个用于放置电池单体200的区域，隔板30内部和底板10内部均形成有气体通道且相互贯通，一部分进气孔31设置在隔板30上，另一部分进气孔31设置在底板10上，排气孔设置在底板10上。在这种实施例中，从单体防爆阀201排出的火焰、烟雾或气体通过隔板30上的进气孔31进入隔板30内部的气体通道，或者，从单体防爆阀201排出的火焰、烟雾或气体通过底板10上的进气孔31进入底板10内部的气体通道；或者，从单体防爆阀201排出的火焰、烟雾或气体一部分通过隔板30上的进气孔31进入隔板30内部的气体通道，一部分通过底板10上的进气孔31进入底板10内部的气体通道，当气体通道内的气压达到一定值时，底板10上的电池包防爆阀40开启，气体通道内积累的火焰、烟雾或气体通过电池包防爆阀40排出至电池包外。
由于电池包的上部面向乘客箱，在第四种实施例中，由于排气孔设置在底板10上，因此气体通道内的气体会向下排放，更加安全。
在第五种实施例中，托盘本体包括底板10、边梁20、以及若干个隔板30，边梁20设置在底板10的四周并与底板10共同限定出电池容纳空间，隔板30设置在底板10上，隔板30将底板10分隔成若干个用于放置电池单体200的区域，隔板30内部、边梁20内部和底板10内部均形成有气体通道且相互贯通，一部分进气孔31设置在隔板30，一部分进气孔31设置在边梁20，还有一部分进气孔31设置在底板10上，排气孔设置在边梁20上。在这种实施例中，从单体防爆阀201排出的火焰、烟雾或气体通过隔板30上的进气孔31进入隔板30内部的气体通道，或者，通过底板10上的进气孔31进入底板10内部的气体通道，或者，通过边梁20上的进气孔31进入边梁20内部的气体通道，或者，通过隔板30、底板10和边梁20中的任意两个上的进气孔31进入对应的气体通道，或者，分别通过隔板30、底板10和边梁20上的进气孔31进入对应的气体通道，当气体通道内的气压达到一定值时，边梁20上的电池包防爆阀40开启，气体通道内积累的火焰、烟雾或气体通过电池包防爆阀40排出至电池包外。
在第六种实施例中，托盘本体包括底板10、边梁20、以及若干个隔板30，边梁20设置在底板10的四周并与底板10共同限定出电池容纳空间，隔板30设置在底板10上，隔板30将底板10分隔成若干个用于放置电池单体200的区域，隔板30内部、边梁20内部和底板10内部均形成有气体通道且相互贯通，一部分进气孔31设置在隔板30，一部分进气孔31设置在边梁20，还有一部分进气孔31设置在底板10上，排气孔设置在底板10上。在这种实施例中，从单体防爆阀201排出的火焰、烟雾或气体通过隔板30上的进气孔31进入隔板30内部的气体通道，或者，通过底板10上的进气孔31进入底板10内部的气体通道，或者，通过边梁20上的进气孔31进入边梁20内部的气体通道，或者，通过隔板30、底板10和边梁20中的任意两个上的进气孔31进入对应的气体通道，或者，分别通过隔板30、底板10和边梁20上的进气孔31进入对应的气体通道，当气体通道内的气压达到一定值时，底板10上的电池包防爆阀40开启，气体通道内积累的火焰、烟雾或气体通过电池包防爆阀40排出至电池包外。
由于电池包的上部面向乘客箱，在第六种实施例中，由于排气孔设置在底板10上，因此气体通道内的气体会向下排放，更加安全。
在第七种实施例中，托盘本体包括底板10、边梁20、以及若干个隔板30，边梁20设置在底板10的四周并与底板10共同限定出电池容纳空间，隔板30设置在底板10上，隔板30将底板10分隔成若干个用于放置电池单体200的区域，隔板30内部、边梁20内部和底板10内部均形成有气体通道且相互贯通，一部分进气孔31设置在隔板30，一部分进气孔31设置在边梁20，还有一部分进气孔31设置在底板10上，一部分排气孔 设置在边梁20上，另一部分排气孔设置在底板10上。在这种实施例中，从单体防爆阀201排出的火焰、烟雾或气体通过隔板30上的进气孔31进入隔板30内部的气体通道，或者，通过底板10上的进气孔31进入底板10内部的气体通道，或者，通过边梁20上的进气孔31进入边梁20内部的气体通道，或者，通过隔板30、底板10和边梁20中的任意两个上的进气孔31进入对应的气体通道，或者，分别通过隔板30、底板10和边梁20上的进气孔31进入对应的气体通道，当气体通道内的气压达到一定值时，底板10上的电池包防爆阀40开启，或者，边梁20上的电池包防爆阀40开启，或者，底板10和边梁20上的电池包防爆阀40均开启，气体通道内积累的火焰、烟雾或气体通过电池包防爆阀40排出至电池包外。
在第八种实施例中，托盘本体包括底板10、边梁20、以及若干个隔板30，边梁20设置在底板10的四周并与底板10共同限定出电池容纳空间，隔板30设置在底板10上，隔板30将底板10分隔成若干个用于放置电池单体200的区域，隔板30内部、边梁20内部和底板10内部均形成有气体通道且相互贯通，进气孔31设置在隔板30，一部分排气孔设置在边梁20上，另一部分排气孔设置在底板10上。在这种实施例中，从单体防爆阀201排出的火焰、烟雾或气体通过隔板30上的进气孔31进入隔板30内部的气体通道，当气体通道内的气压达到一定值时，底板10上的电池包防爆阀40开启，或者，边梁20上的电池包防爆阀40开启，或者，底板10和边梁20上的电池包防爆阀40均开启，气体通道内积累的火焰、烟雾或气体通过电池包防爆阀40排出至电池包外。
在第九种实施例中，托盘本体包括底板10、边梁20、以及若干个隔板30，边梁20设置在底板10的四周并与底板10共同限定出电池容纳空间，隔板30设置在底板10上，隔板30将底板10分隔成若干个用于放置电池单体200的区域，隔板30内部、边梁20内部和底板10内部均形成有气体通道且相互贯通，一部分进气孔31设置在隔板30，另一部分进气孔31设置在边梁20上，一部分排气孔设置在边梁20上，另一部分排气孔设置在底板10上。在这种实施例中，从单体防爆阀201排出的火焰、烟雾或气体通过隔板30上的进气孔31进入隔板30内部的气体通道，或者，通过边梁20上的进气孔31进入边梁20内部的气体通道，或者一部分通过隔板30上的进气孔31进入隔板30内部的气体通道，一部分通过边梁20上的进气孔31进入边梁20内部的气体通道，当气体通道内的气压达到一定值时，底板10上的电池包防爆阀40开启，或者，边梁20上的电池包防爆阀40开启，或者，底板10和边梁20上的电池包防爆阀40均开启，气体通道内积累的火焰、烟雾或气体通过电池包防爆阀40排出至电池包外。
在第十种实施例中，托盘本体包括底板10、边梁20、以及若干个隔板30，边梁20 设置在底板10的四周并与底板10共同限定出电池容纳空间，隔板30设置在底板10上，隔板30将底板10分隔成若干个用于放置电池单体200的区域，隔板30内部、边梁20内部和底板10内部均形成有气体通道且相互贯通，一部分进气孔31设置在隔板30，另一部分进气孔31设置在底板10上，一部分排气孔设置在边梁20上，另一部分排气孔设置在底板10上。在这种实施例中，从单体防爆阀201排出的火焰、烟雾或气体通过隔板30上的进气孔31进入隔板30内部的气体通道，或者，通过底板10上的进气孔31进入底板10内部的气体通道，或者一部分隔板30上的进气孔31进入隔板30内部的气体通道，一部分通过底板10上的进气孔31进入底板10内部的气体通道，当气体通道内的气压达到一定值时，底板10上的电池包防爆阀40开启，或者，边梁20上的电池包防爆阀40开启，或者，底板10和边梁20上的电池包防爆阀40均开启，气体通道内积累的火焰、烟雾或气体通过电池包防爆阀40排出至电池包外。
在第十一种实施例中，托盘本体包括底板10、边梁20、以及若干个隔板30，边梁20设置在底板10的四周并与底板10共同限定出电池容纳空间，隔板30设置在底板10上，隔板30将底板10分隔成若干个用于放置电池单体200的区域，隔板30内部、边梁20内部和底板10内部均形成有气体通道，且所述隔板30内部的气体通道与所述边梁20内部的气体通道贯通，所述边梁20内部的气体通道与所述底板10内部的气体通道贯通，所述隔板30内部的气体通道经所述边梁20内部的气体通道与所述底板10内部的气体通道连通，所述进气孔31设置在所述隔板30上，所述排气孔设置在所述底板10上。在这种实施例中，从单体防爆阀201排出的火焰、烟雾或气体通过隔板30上的进气孔31进入隔板30内部的气体通道，并从隔板30内部的气体通道扩散至边梁20内部的气体通道，再从边梁20内部的气体通道扩散至底板10内部的气体通道，当气体通道内的气压达到一定值时，底板10上的电池包防爆阀40开启，气体通道内积累的火焰、烟雾或气体通过电池包防爆阀40排出至电池包外。
在第十二种实施例中，托盘本体包括底板10、边梁20、以及若干个隔板30，边梁20设置在底板10的四周并与底板10共同限定出电池容纳空间，隔板30设置在底板10上，隔板30将底板10分隔成若干个用于放置电池单体200的区域，隔板30内部、边梁20内部和底板10内部均形成有气体通道，且所述隔板30内部的气体通道与所述底板10内部的气体通道贯通，所述底板10内部的气体通道与所述边梁20内部的气体通道贯通，所述隔板30内部的气体通道经所述底板10内部的气体通道与所述边梁20内部的气体通道连通，所述进气孔31设置在所述隔板30上，所述排气孔设置在所述边梁20上。在这种实施例中，从单体防爆阀201排出的火焰、烟雾或气体通过隔板30上的 进气孔31进入隔板30内部的气体通道，并从隔板30内部的气体通道扩散至底板10内部的气体通道，再从底板10内部的气体通道扩散至边梁20内部的气体通道，当气体通道内的气压达到一定值时，边梁20上的电池包防爆阀40开启，气体通道内积累的火焰、烟雾或气体通过电池包防爆阀40排出至电池包外。
在第十三种实施例中，如图11-图14所示，托盘本体包括底板10和边梁20，边梁20设置在底板10的四周并与底板10共同限定出电池容纳空间，边梁20内部形成有气体通道，进气孔31和排气孔均设置在边梁20上。在这种实施例中，气体通道形成在边梁20内，从单体防爆阀201排出的火焰、烟雾或气体通过边梁20上的进气孔31进入边梁20内部的气体通道，当气体通道内的气压达到一定值时，边梁20上的电池包防爆阀40开启，气体通道内积累的火焰、烟雾或气体通过电池包防爆阀40排出至电池包外。
在第十三种实施例中，如图14所示，多个电池单体200组成电池模组，密封垫300设置在电池模组和边梁20之间，每个密封垫300上设置有若干通孔301，通孔301与边梁20上的进气孔31一一对应，每个通孔301位于对应的进气孔31和单体防爆阀201之间。
当电池单体200发生热失控时，一般会在很短的时间内产生几十升甚至上百升的烟雾或气体。在第十种实施例中，通过将进气孔31和排气孔均设置在边梁20上，使得排气路径更短，从而更快地将烟雾或气体排出，提高电池包的安全性。
在第十四种实施例中，如图5-图10所示，托盘本体包括底板10和边梁20，边梁20设置在底板10的四周并与底板10共同限定出电池容纳空间，底板10内部形成有气体通道，进气孔31和排气孔均设置在底板10上。在这种实施例中，气体通道形成在底板10内，从单体防爆阀201排出的火焰、烟雾或气体通过底板10上的进气孔31进入底板10内部的气体通道，当气体通道内的气压达到一定值时，底板10上的电池包防爆阀40开启，气体通道内积累的火焰、烟雾或气体通过电池包防爆阀40排出至电池包外。
在第十四种实施例中，如图6-图7所示，多个电池单体200组成电池模组，密封垫300设置在电池模组和边梁20之间，每个密封垫300上设置有若干通孔301，通孔301与底板10上的进气孔31一一对应，每个通孔301位于对应的进气孔31和单体防爆阀201之间。
当电池单体200发生热失控时，一般会在很短的时间内产生几十升甚至上百升的烟雾或气体。在第十四种实施例中，通过将进气孔31和排气孔均设置在底板10上，使得排气路径更短，从而更快地将烟雾或气体排出，提高电池包的安全性。
由于电池包的上部面向乘客箱，在第十四种实施例中，由于排气孔设置在底板10 上，因此气体通道内的气体会向下排放，更加安全。
在第十五种实施例中，如图18所示，托盘本体包括底板10和边梁20，边梁20设置在底板10的四周并与底板10共同限定出电池容纳空间，边梁20内部和底板10内部均形成有气体通道且相互贯通，进气孔31设置在底板10上，排气孔设置在边梁20上。这种实施例中，从单体防爆阀201排出的火焰、烟雾或气体通过底板10上的进气孔31进入底板10内部的气体通道，再从底板10内部的气体通道扩散至边梁20内部的气体通道，当气体通道内的气压达到一定值时，边梁20上的电池包防爆阀40开启，气体通道内积累的火焰、烟雾或气体通过电池包防爆阀40排出至电池包外。
在第十六种实施例中，托盘本体包括底板10和边梁20，边梁20设置在底板10的四周并与底板10共同限定出电池容纳空间，边梁20内部和底板10内部均形成有气体通道且相互贯通，进气孔31设置在边梁20上，排气孔设置在底板10上。这种实施例中，从单体防爆阀201排出的火焰、烟雾或气体通过边梁20上的进气孔31进入边梁20内部的气体通道，再从边梁20内部的气体通道扩散至底板10内部的气体通道，当气体通道内的气压达到一定值时，底边10上的电池包防爆阀40开启，气体通道内积累的火焰、烟雾或气体通过电池包防爆阀40排出至电池包外。
在本公开中，电池托盘100可以为矩形，包括矩形的底板10和设置在底板10四周的边梁20。边梁20可以和底板10做成一体结构，也可以是分体式结构，例如在底板的四周通过焊接或其他工艺安装边梁20。边梁20可以是一体结构，可以是由四条边梁20首尾焊接而成或通过其他工艺连接而成。隔板30可以与底板10做成一体结构，也可以是分体式结构，例如在底板10上通过焊接或其他工艺连接隔板30。
在上述第一种至第十二种实施例中，电池托盘100的内部均设置有隔板30，隔板30用作加强电池托盘100，至少一部分进气孔31设置在隔板30上。而在上述第十三种至第十六种实施例中，对电池托盘内部是否设置隔板不作特殊限定，电池托盘的内部可以无需设置隔板30，进气孔31可以直接设置在边梁20上，或者直接设置在底板10上，或者直接设置在边梁20和底板10上。
在上述第一种至第十二种实施例中，隔板30可以按照任意适当的布置方式排布在电池托盘内，本公开对此不作限制。根据本公开的一些实施例，如图1和图2所示，隔板30可以相互平行且彼此间隔设置，隔板30与底板10垂直，隔板30的两端与边梁20相连。根据本公开的一些实施例，如图19所示，隔板30也可以包括一个或多个沿托盘本体长度方向延伸的纵向隔板31以及一个或多个沿托盘本体宽度方向延伸的横向隔板32，纵向隔板31和横向隔板32交叉布置，纵向隔板31的两端与边梁20相连，横向隔 板32的两端与边梁20相连。
在本公开中，托盘本体内部形成的气体通道用于接收和贮存电池单体200排出的火焰、烟雾或气体，所有的电池单体200排出的烟雾和气体均可以通过对应的进气孔31进入气体通道，电池包防爆阀40用于控制气体通道的排气。
本公开对气体通道的个数不作限定，可以是一个电池单体200对应一个气体通道，也可以是多个电池单体200共用一个气体通道。
在上述第一种实施例中，可以是边梁20内部仅形成有一个气体通道，该气体通道与每个隔板30内部的气体通道均贯通；也可以是边梁20内部形成有多个相互独立的气体通道，每个隔板30内部的气体通道仅与边梁20内部对应的气体通道贯通。
在上述第二种实施例中，可以是底板10内部仅形成有一个气体通道，该气体通道与每个隔板30内部的气体通道均贯通；也可以是底板10内部形成有多个相互独立的气体通道，每个隔板30内部的气体通道仅与底板10内部的对应的气体通道贯通。
在上述第十三种实施例中，可以是边梁20内部仅形成有一个气体通道，所有的电池单体200均共用该气体通道，即，所有的进气孔31和排气孔均与该气体通道连通；也可以是边梁20内部形成有多个相互独立的气体通道，每个气体通道对应多个电池单体200，即，每个气体通道具有多个进气孔31和至少一个排气孔；还可以是边梁20内部形成有多个相互独立的气体通道，每个气体通道对应一个电池单体200，即，每个气体通道具有一个进气孔31和一个排气孔。
在上述第十四种实施例中，可以是底板10内部仅形成有一个气体通道，所有的电池单体200均共用该气体通道，即，所有的进气孔31和排气孔均与该气体通道连通；也可以是底板10内部形成有多个相互独立的气体通道，每个气体通道对应多个电池单体200，即，每个气体通道具有多个进气孔31和至少一个排气孔；还可以是底板10内部形成有多个相互独立的气体通道，每个气体通道对应一个电池单体200，即，每个气体通道具有一个进气孔31和一个排气孔。
在本公开中，根据本公开的一些实施例，每个气体通道对应多个电池单体200，也就是说，多个电池单体200可以共用一个气体通道，这样可以减少排气孔和电池包防爆阀40的数量，使得排气孔的数量和电池包防爆阀40的数量可以小于进气孔31的数量，从而减小了托盘本体的加工难度，减少了所需的电池包防爆阀40的数量，降低了制造成本。根据本公开的一些实施例，电池包防爆阀40的数量可以为一个、两个、三个或更多个，本公开对此不做限制。
在上述第一种和第二种实施例中，如图3和图4所示，密封垫300的数量可以与隔 板30的数量相等，且与隔板30一一对应，每个密封垫300设置在对应的隔板30和电池单体200之间，密封垫300可以一体成型，也可以分体设置，在其中一个实施例中，密封垫采用分体设置，便于匹配具有不同数量的电池单体200的电池模组的使用，本申请对密封垫的材料不作特殊限定，具体的，可以为聚氨酯发泡材料、硅胶泡棉、阻燃聚丙烯发泡材料中的一种或多种的组合。
在本公开中，如图2所示，边梁20的上沿可以设置有多个第一安装孔21，螺栓穿过第一安装孔21并与盖板相连，从而实现边梁20与盖板的连接。在上述第一种至第五种实施例中，如图2所示，隔板30的上沿可以与边梁20的上沿平齐，隔板30的上沿可以设置有第二安装孔32，螺栓穿过第二安装孔32并与盖板相连，从而实现隔板30与盖板的连接。
在本公开中，如图2所示，可以在边梁20的外侧设置一个或多个安装块50，安装块50上设置一个或多个第三安装孔51，螺栓穿过第三安装孔51并与车辆500底部相连，从而将电池托盘100固定在车辆500的底部。
现有技术中，在电池托盘内设置烟雾或气体感应器，当离烟雾或气体感应器的位置相对较远的某一个电池单体200由于热失控，防爆阀开启释放出气体或烟雾，由于托盘的体积较大，释放出气体或烟雾会在电池托盘内部四处扩散而被稀释，烟雾或气体感应器可能无法及时检测排出的气体或烟雾，灵敏性下降，而在本公开中，可以在电池托盘100的气体通道内设置烟雾或气体感应器(未图示)，气体通道的空间相对电池托盘的体积明显较小，且气体通道会将相应的烟雾或气体沿预定的方向排除，因此，一旦有单体防爆阀201开启，烟雾或气体感应器便会感应到相应的烟雾或气体，烟雾或气体感应器将信号反馈给整车控制系统，提醒驾驶员做出反应，或启动电池包的气体灭火阻燃等动作，提高电池包的安全性，本公开对烟雾和气体感应器在气体通道内部设置的位置以及烟雾和气体感应器的设置数量不作特殊限定，在其中一个实施例中，烟雾临近排气孔位置设置，或者气体感应器临近排气孔位置设置，或者烟雾和气体感应器均临近排气孔位置设置，可以更为灵敏的检测到相应的气体或烟雾。
根据本公开的另一方面，提供一种车辆500，该车辆500包括如上所述的动力电池包400。
以上结合附图详细描述了本公开的实施方式，但是，本公开并不限于上述实施方式中的具体细节，在本公开的技术构思范围内，可以对本公开的技术方案进行多种简单变型，这些简单变型均属于本公开的保护范围。
另外需要说明的是，在上述具体实施方式中所描述的各个具体技术特征，在不矛盾 的情况下，可以通过任何合适的方式进行组合。为了避免不必要的重复，本公开对各种可能的组合方式不再另行说明。
此外，本公开的各种不同的实施方式之间也可以进行任意组合，只要其不违背本公开的思想，其同样应当视为本公开所公开的内容。

Claims (18)

  1. 一种动力电池包，其特征在于，包括电池托盘(100)和设置在所述电池托盘(100)上的若干电池单体(200)，每个电池单体(200)具有单体防爆阀(201)，所述电池托盘(100)包括托盘本体，所述托盘本体的至少一部分内部形成有气体通道，所述托盘本体上设置有若干进气孔(31)和至少一个排气孔，至少部分所述进气孔(31)与单体防爆阀(201)相对设置且一一对应，使得从每个单体防爆阀(201)排出的火焰、烟雾或气体经由对应的进气孔(31)进入所述气体通道，所述排气孔用于将所述气体通道内的火焰、烟雾或气体排出。
  2. 根据权利要求1所述的动力电池包，其特征在于，所述托盘本体的至少一部分为中空结构，所述中空结构作为所述气体通道。
  3. 根据权利要求1或2所述的动力电池包，其特征在于，所述电池托盘(100)还包括电池包防爆阀(40)，所述排气孔通过所述电池包防爆阀(40)封堵。
  4. 根据权利要求1-3中任一项所述的动力电池包，其特征在于，所述托盘本体包括底板(10)和边梁(20)，所述边梁(20)设置在所述底板(10)的四周并与所述底板(10)共同限定出电池单体(200)的容纳空间，所述边梁(20)内部形成有气体通道，所述进气孔(31)和所述排气孔均设置在所述边梁(20)上。
  5. 根据权利要求1-3中任一项所述的动力电池包，其特征在于，所述托盘本体包括底板(10)和边梁(20)，所述边梁(20)设置在所述底板(10)的四周并与所述底板(10)共同限定出电池单体(200)的容纳空间，所述边梁(20)内部和所述底板(10)内部均形成有气体通道且相互贯通，所述进气孔(31)设置在所述边梁(20)上，所述排气孔设置在所述底板(10)上。
  6. 根据权利要求1-3中任一项所述的动力电池包，其特征在于，所述托盘本体包括底板(10)和边梁(20)，所述边梁(20)设置在所述底板(10)的四周并与所述底板(10)共同限定出电池单体(200)的容纳空间，所述底板(10)内部形成有气体通道，所述进气孔(31)和所述排气孔均设置在所述底板(10)上。
  7. 根据权利要求1-3中任一项所述的动力电池包，其特征在于，所述托盘本体包括底板(10)和边梁(20)，所述边梁(20)设置在所述底板(10)的四周并与所述底板(10)共同限定出电池单体(200)的容纳空间，所述边梁(20)内部和所述底板(10)内部均形成有气体通道且相互贯通，所述进气孔(31)设置在所述底板(10)上，所述排气孔设置在所述边梁(20)上。
  8. 根据权利要求1-3中任一项所述的动力电池包，其特征在于，所述托盘本体包括底板(10)、边梁(20)、以及若干个隔板(30)，所述边梁(20)设置在所述底板(10)的四周并与所述底板(10)共同限定出电池单体(200)的容纳空间，所述隔板(30)设置在所述底板(10)上并且将所述底板(10)分隔成若干个用于放置电池单体(200)的区域，所述隔板(30)内部和所述边梁(20)内部均形成有气体通道且相互贯通，所述进气孔(31)设置在所述隔板(30)上，所述排气孔设置在所述边梁(20)上。
  9. 根据权利要求1-3中任一项所述的动力电池包，其特征在于，所述托盘本体包括底板(10)、边梁(20)、以及若干个隔板(30)，所述边梁(20)设置在所述底板(10)的四周并与所述底板(10)共同限定出电池单体(200)的容纳空间，所述隔板(30)设置在所述底板(10)上并且将所述底板(10)分隔成若干个用于放置电池单体(200)的区域，所述隔板(30)内部和所述底板(10)内部均形成有气体通道且相互贯通，所述进气孔(31)设置在所述隔板(30)上，所述排气孔设置在所述底板(10)上。
  10. 根据权利要求1-3中任一项所述的动力电池包，其特征在于，所述托盘本体包括底板(10)、边梁(20)、以及若干个隔板(30)，所述边梁(20)设置在所述底板(10)的四周并与所述底板(10)共同限定出电池单体(200)的容纳空间，所述隔板(30)设置在所述底板(10)上并且将所述底板(10)分隔成若干个用于放置电池单体(200)的区域，所述隔板(30)内部、所述边梁(20)内部和所述底板(10)内部均形成有气体通道，且所述隔板(30)内部的气体通道与所述边梁(20)内部的气体通道贯通，所述边梁(20)内部的气体通道与所述底板(10)内部的气体通道贯通，所述进气孔(31)设置在所述隔板(30)上，所述排气孔设置在所述底板(10)上。
  11. 根据权利要求1-3中任一项所述的动力电池包，其特征在于，所述托盘本体包 括底板(10)、边梁(20)、以及若干个隔板(30)，所述边梁(20)设置在所述底板(10)的四周并与所述底板(10)共同限定出电池单体(200)的容纳空间，所述隔板(30)设置在所述底板(10)上并且将所述底板(10)分隔成若干个用于放置电池单体(200)的区域，所述隔板(30)内部、所述边梁(20)内部和所述底板(10)内部均形成有气体通道，且所述隔板(30)内部的气体通道与所述底板(10)内部的气体通道贯通，所述底板(10)内部的气体通道与所述边梁(20)内部的气体通道贯通，所述进气孔(31)设置在所述隔板(30)上，所述排气孔设置在所述边梁(20)上。
  12. 根据权利要求1-3中任一项所述的动力电池包，其特征在于，所述托盘本体包括底板(10)、边梁(20)、以及若干个隔板(30)，所述边梁(20)设置在所述底板(10)的四周并与所述底板(10)共同限定出电池单体(200)的容纳空间，所述隔板(30)设置在所述底板(10)上并且将所述底板(10)分隔成若干个用于放置电池单体(200)的区域，所述隔板(30)内部和所述边梁(20)内部均形成有气体通道且相互贯通，一部分进气孔(31)设置在所述隔板(30)上，另一部分进气孔(31)设置在所述边梁(20)上，所述排气孔设置在所述边梁(20)上。
  13. 根据权利要求1-3中任一项所述的动力电池包，其特征在于，所述托盘本体包括底板(10)、边梁(20)、以及若干个隔板(30)，所述边梁(20)设置在所述底板(10)的四周并与所述底板(10)共同限定出电池单体(200)的容纳空间，所述隔板(30)设置在所述底板(10)上并且将所述底板(10)分隔成若干个用于放置电池单体(200)的区域，所述隔板(30)内部和所述底板(10)内部均形成有气体通道且相互贯通，一部分进气孔(31)设置在所述隔板(30)上，另一部分进气孔(31)设置在所述底板(10)上，所述排气孔设置在所述底板(10)上。
  14. 根据权利要求1-3中任一项所述的动力电池包，其特征在于，所述托盘本体包括底板(10)、边梁(20)、以及若干个隔板(30)，所述边梁(20)设置在所述底板(10)的四周并与所述底板(10)共同限定出电池单体(200)的容纳空间，所述隔板(30)设置在所述底板(10)上并且将所述底板(10)分隔成若干个用于放置电池单体(200)的区域，所述隔板(30)内部、所述边梁(20)内部和所述底板(10)内部均形成有气体通道且相互贯通，一部分进气孔(31)设置在所述隔板(30)上，另一部分进气孔(31)设置在所述边梁(20)和所述底板(10)的至少一个上，所述排气孔设置 在所述边梁(20)和所述底板(10)中的至少一个上。
  15. 根据权利要求1-14中任一项所述的动力电池包，其特征在于，所述电池托盘(100)还包括烟雾和气体感应器中的至少一个，所述烟雾和气体感应器中的至少一个设置在所述气体通道内。
  16. 根据权利要求1-15中任一项所述的动力电池包，其特征在于，所述动力电池包还包括密封垫(300)，所述密封垫(300)设置在所述电池单体(200)和托盘本体之间，所述密封垫(300)上设置有通孔(301)，所述通孔(301)与所述进气孔(31)一一对应，所述通孔(301)位于对应的进气孔(31)和单体防爆阀(201)之间。
  17. 根据权利要求1-16中任一项所述的动力电池包，其特征在于，所述动力电池包还包括盖板，所述盖板与所述电池托盘(100)密封连接并共同形成用于容纳所述若干电池单体(200)的密闭空间。
  18. 一种车辆，其特征在于，包括权利要求1-17中任一项所述的动力电池包。
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