CN111599964B - Battery pack and vehicle - Google Patents

Battery pack and vehicle Download PDF

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Publication number
CN111599964B
CN111599964B CN202010602709.4A CN202010602709A CN111599964B CN 111599964 B CN111599964 B CN 111599964B CN 202010602709 A CN202010602709 A CN 202010602709A CN 111599964 B CN111599964 B CN 111599964B
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CN
China
Prior art keywords
air
cooling
battery module
battery
battery pack
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CN202010602709.4A
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Chinese (zh)
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CN111599964A (en
Inventor
郑慧苗
马腾
范凯
郭志远
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Svolt Energy Technology Co Ltd
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Svolt Energy Technology Co Ltd
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Priority to CN202010602709.4A priority Critical patent/CN111599964B/en
Publication of CN111599964A publication Critical patent/CN111599964A/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
    • 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
    • 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
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—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
    • H01M10/6556—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
    • H01M10/6561—Gases
    • H01M10/6563—Gases with forced flow, e.g. by blowers
    • 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

Abstract

The invention discloses a battery pack and a vehicle, wherein the battery pack comprises: a case and a battery module. The bottom wall of the shell is provided with a shell air inlet, and the side wall of the shell is provided with a shell air outlet; the battery module sets up in the casing, and the bottom of battery module is formed with battery module air intake, and casing air intake and battery module air intake are just to hugging closely the setting and communicate each other, and the horizontal both ends of battery module are formed with battery module air outlet, and battery module air outlet is linked together with the casing air outlet. This inside wind channel structure of reducible casing of battery package to the overall structure who makes the battery package is simpler, and then makes the whole cost of battery package lower, and adopt to advance cooling gas from the battery package bottom, and go out cooling gas's mode from the battery package lateral part, advance cooling gas and go out cooling gas's mode from the lateral part from the bottom with cooperation battery module, can make better to the holistic heat transfer refrigeration effect of battery package, and then promoted the security of battery package.

Description

Battery pack and vehicle
Technical Field
The invention relates to the technical field of vehicles, in particular to a battery pack and a vehicle.
Background
Traditional forced air cooling battery package need set up inlet air channel and air-out access structure respectively in the battery package because the restriction of cooling gas's the mobile mode to lead to the overall structure of battery package more complicated, lead to the manufacturing cost of battery package higher, and the whole heat transfer refrigeration effect of battery package is relatively poor, lead to the security of battery package relatively poor, have the improvement space.
Disclosure of Invention
In view of this, the present invention provides a battery pack, which can reduce the air duct structure inside the housing, so that the overall structure of the battery pack is simpler, the overall cost of the battery pack is lower, and the overall heat exchange and refrigeration effect of the battery pack is better, so as to effectively improve the safety of the battery pack.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a battery pack, comprising: the air conditioner comprises a shell, a fan body and a fan, wherein the bottom wall of the shell is provided with a shell air inlet, and the side wall of the shell is provided with a shell air outlet; the battery module, the battery module sets up in the casing, the bottom of battery module is formed with battery module air intake, the casing air intake with the battery module air intake just to hugging closely the setting and communicate each other, the horizontal both ends of battery module are formed with battery module air outlet, battery module air outlet with the casing air outlet is linked together.
Further, the shell air inlet is constructed as a blowing air inlet.
Further, the battery module includes: electric core and forced air cooling board, the last cooling duct that has of forced air cooling board, every the electricity core clamp is established adjacent two of forced air cooling board two between the cooling duct, the cooling duct has forced air cooling board air intake and forced air cooling board air outlet, the forced air cooling board air intake forms the vertical bottom of forced air cooling board and structure do the sub-air intake of battery module air intake, the forced air cooling board air outlet forms the horizontal tip of forced air cooling board and structure do the sub-air outlet of battery module air outlet.
Further, the cooling air duct includes: and the air inlet ends of the sub air channels are respectively communicated with the air inlets of the air cooling plates, and the air outlet ends of the sub air channels are respectively communicated with the air outlets of the air cooling plates.
Furthermore, two adjacent sub-air ducts are separated by air guide convex ribs, and the air guide convex ribs are abutted against the side walls of the battery cells.
Further, the wind-guiding convex rib includes: long fin and short fin, short fin sets up adjacent two between the long fin, short fin is along horizontal straight extension, long fin includes: the air inlet structure comprises a flat section and a vertical section, wherein the flat section extends along the horizontal straight direction, the vertical section extends along the vertical direction, and the lower end of the vertical section is close to the air inlet.
Further, the air-cooling plate further includes: the battery cell explosion-proof valve smoke discharging structure is arranged at the upper end of the air cooling plate and located above the cooling air duct, a battery cell explosion-proof valve intercommunicating pore is formed in the lower end of the battery cell explosion-proof valve smoke discharging structure, and the explosion-proof valve of the battery cell and the battery cell explosion-proof valve intercommunicating pore are just opposite to the laminating arrangement.
Further, the battery cell explosion-proof valve smoke exhaust structure is provided with a smoke exhaust hole which is longitudinally communicated, the smoke exhaust hole is communicated with the battery cell explosion-proof valve communication hole, the smoke exhaust hole is communicated with the smoke exhaust holes of the air cooling plates to form a smoke exhaust channel, smoke exhaust outlets of the battery module are arranged at the two longitudinal ends of the battery module, and the smoke exhaust outlets are communicated with the smoke exhaust channel.
Further, the air cooling plate has electric core installation space, electric core installation space forms on at least one lateral wall of air cooling plate, cooling duct forms in the electric core installation space, adjacent two be provided with the location fit structure between the air cooling plate, the structural fixed orifices of having a perfect understanding along vertically of seting up in the location fit, the battery module still includes: the fixing ribs are suitable for sequentially penetrating through the plurality of fixing holes among the plurality of air cooling plates so as to connect the plurality of air cooling plates.
Further, the positioning and fitting structure comprises: the location is to inserting the subassembly, be provided with inside sunken to inserting the mating holes on the lateral wall of air-cooled panel, be provided with outside outstanding grafting cooperation sleeve on another lateral wall of air-cooled panel, to inserting the mating holes with grafting cooperation sleeve is linked together, the air-cooled panel the grafting cooperation sleeve is with adjacent another the air-cooled panel to inserting the mating holes cooperation grafting in order to constitute the location is to inserting the subassembly, the fixed orifices forms on the grafting cooperation sleeve.
Further, the air-cooling plate further includes: go up bearing structure and under bracing structure, it is in to go up bearing structure sets up the upper end of forced air cooling board, under bracing structure sets up the lower extreme of forced air cooling board, go up bearing structure with inject between the under bracing structure electric core installation space, the spacing support of electric core is in go up bearing structure with between the under bracing structure, the location is formed respectively to the plug-in components go up bearing structure with under bracing structure is last.
Compared with the prior art, the battery pack has the following advantages:
according to the battery pack, the air duct structure in the shell can be reduced, so that the overall structure of the battery pack is simpler, the overall cost of the battery pack is lower, the cooling gas is fed from the bottom of the battery pack, and the cooling gas is discharged from the side of the battery pack, and the cooling gas is fed from the bottom and discharged from the side of the battery pack in a manner of matching with a battery module, so that the overall heat exchange and refrigeration effect of the battery pack is better, and the safety of the battery pack is improved.
Another objective of the present invention is to provide a vehicle, including the battery pack, wherein the overall structure of the battery pack of the vehicle is simpler, so that the overall cost of the battery pack is lower, and the battery pack has better heat exchange and refrigeration effects and higher safety.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural view of a battery pack according to an embodiment of the present invention;
fig. 2 is an exploded view of a battery pack according to an embodiment of the present invention;
fig. 3 is an exploded view of a battery module according to an embodiment of the present invention;
fig. 4 is a partial structural view of a battery module according to an embodiment of the present invention;
fig. 5 is a bottom view of a battery module according to an embodiment of the present invention;
FIG. 6 is a schematic structural view of an air-cooled panel according to an embodiment of the present invention;
fig. 7 is a partial structural view of a battery module according to an embodiment of the present invention.
Description of reference numerals:
1000-battery pack, 100-battery module, 200-case, 201-case air inlet, 202-case air outlet, 101-battery module air inlet, 102-battery module air outlet, 1-battery cell, 11-explosion-proof valve, 2-air-cooled plate, 3-cooling air duct, 4-battery cell installation space, 31-air-cooled plate air inlet, 32-air-cooled plate air outlet, 33-sub-air duct, 34-air guiding convex rib, 341-long convex rib, 342-short convex rib, 3411-straight section, 3412-vertical section, 343-guide inclined plane, 21-battery cell explosion-proof valve smoke discharging structure, 211-battery cell explosion-proof valve communicating hole, 212-smoke discharging hole, 5-positioning plug-in component, 51-plug-in mating hole, 52-plug-in mating sleeve, 53-fixed hole, 6-fixed rib, 22-upper support structure, 23-lower support structure, 221-end upper support block, 222-middle upper support block, 231-end lower support block, 232-inner lower support block, 215-pair of jacks, 216-plug connector, 24-battery core spacer, 7-end plate, 71-fixed rib matching hole, 8-sealing ring, 300-BDU, 400-BMS.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
A battery pack 1000 according to an embodiment of the present invention is described below with reference to fig. 1 to 7.
The battery pack 1000 according to an embodiment of the present invention may include: a case 200, and a battery module 100.
As shown in fig. 1 to 5, a bottom wall of the housing 200 is provided with a housing inlet 201, and a side wall of the housing 200 is provided with a housing outlet 202. I.e., the refrigerant gas is adapted to flow into the battery pack 1000 from the housing inlet 201 and finally flow out of the battery pack 1000 from the housing outlet 202, so as to control the flow direction of the refrigerant gas.
Wherein, casing 200 includes casing and lower casing, go up the casing and all can be formed by panel beating stamping process with lower casing, so that casing 200's overall structure intensity is bigger, and casing air intake 201 forms on the diapire of casing down, casing air outlet 202 forms on the lateral wall of casing down, and, go up the casing and seal through the flange face with lower casing, in order to guarantee casing 200's whole leakproofness, thereby guaranteed except that casing air intake 201 and casing air outlet 202, casing 200 no position of leaking out again.
Further, the battery module 100 is disposed in the case 200 and fixed on the bottom wall of the lower case, so that the case 200 can effectively protect the battery module 100. The bottom of battery module 100 is formed with battery module air intake 101 to casing air intake 201 just hugs closely the setting and communicates each other with battery module air intake 101, and wherein, casing air intake 201 is the position that refrigerant gas got into in casing 200 from the casing 200 is outer, and battery module air intake 101 is the position that refrigerant gas that flows into in the casing 200 flowed into in battery module 100 from battery module 100 outflow. That is to say, because casing air intake 201 and battery module air intake 101 just to hugging closely the setting and communicate each other, the two are direct intercommunication promptly to still be provided with sealing washer 8 between casing air intake 201 and the battery module air intake 101, in order to realize the sealed intercommunication between the two.
From this, can make battery module 100 more convenient with the installation of casing 200 to need not to set up solitary wind-guiding passageway between casing air intake 201 and battery module air intake 101, just also need not to consider the sealed in wind channel, the effectual wind channel structure that has reduced in the battery package 1000 promptly makes the overall structure of battery package 1000 simpler, and the cost is lower.
The battery module 100 has battery module outlets 102 formed at two lateral ends thereof, and the battery module outlets 102 are communicated with the housing outlet 202. That is, the cooling gas flowing in from the battery module air inlet 101 flows through the battery module 100, cools the battery module 100, flows out from the battery module air outlets 102 at the two lateral ends of the battery module 100, then flows through other components in the housing 200, and finally flows out of the battery pack 1000 from the housing air outlet 202 to form a complete cooling cycle, thereby achieving the overall effective cooling of the battery module 100 and the battery pack 1000, and ensuring the overall safety of the battery pack 1000.
Wherein, the bottom system cold gas from battery package 1000 is adopted to go out cryogenic gas from the lateral part of battery package 1000, in order to cooperate battery module 100 to go out cryogenic gas's form from the bottom system cold gas, and from battery module 100's lateral part, can realize the better refrigeration effect to battery module 100, and can make cryogenic gas can flow through each position in battery package 1000, in order to further guarantee heat transfer refrigeration effect.
Specifically, the cooling method of the entire battery pack 1000 is: the cooling gas directly enters the Battery module 100 through the Battery module air inlet 101 from the housing air inlet 201 at the bottom of the Battery pack 1000, and then the cooling gas is discharged into the Battery pack 1000 from the Battery module air outlet 102 after cooling the Battery module 100, and then the cooling gas flows through other areas in the Battery pack 1000 and cools the BDU300(Battery Disconnect Unit) and the BMS400(Battery management system) in the Battery pack 1000, and finally the cooling gas is discharged out of the Battery pack 1000 from the housing 200 to complete the cooling cycle.
According to the battery pack 1000 of the embodiment of the invention, the battery pack 1000 can reduce the air duct structure inside the housing 200, so that the overall structure of the battery pack 1000 is simpler, and further the overall cost of the battery pack 1000 is lower, and the mode of feeding cooling gas from the bottom of the battery pack 1000 and discharging cooling gas from the side of the battery pack 1000 is adopted, so that the mode of feeding cooling gas from the bottom and discharging cooling gas from the side of the battery module 100 is matched, so that the overall heat exchange and refrigeration effect of the battery pack 1000 is better, and further the safety of the battery pack 1000 is improved.
In connection with the exemplary embodiments shown in fig. 1 to 5, the housing inlet 201 is designed as a blowing inlet. That is, the battery pack 1000 is cooled by blowing air, i.e., cooling air is blown into the battery pack 1000 from the housing air inlet 201 instead of being sucked into the battery pack 1000, for example, a cooling fan may be used to communicate with the housing air inlet 201 to deliver the cooling air to the interior of the battery pack 1000. Therefore, the airflow of the cooling gas flowing through the inside of the battery pack 1000 can be stronger, so that the refrigeration effect is better, and the air duct structure arranged inside the battery pack 1000 can be further avoided.
In conjunction with the embodiments shown in fig. 3 to 7, the battery module 100 includes: the battery cell comprises a battery cell 1 and two air-cooled plates 2, wherein the number of the battery cell 1 can be one, and the number of the air-cooled plates 2 is two; or electric core 1 is a plurality of, and air-cooling board 2 is also a plurality of, and every electric core 1 sets up between two adjacent air-cooling boards 2 along thickness direction (vertically), and simultaneously, every air-cooling board 2 also sets up between two adjacent electric cores 1 along thickness direction (vertically), and battery module 100 is in groups with electric core 1 and air-cooling board 2 mode of superposing in turn promptly.
Each air cooling plate 2 is provided with a cooling air duct 3, and each electric core 1 is clamped between two cooling air ducts 3 of two adjacent air cooling plates 2. That is to say, two cooling air ducts 3 of two air-cooled plates 2 can refrigerate same electric core 1 simultaneously to make electric core 1's cooling heat transfer effect better, and then make battery module 100's refrigeration heat transfer effect better.
Wherein, the cooling air duct 3 is formed on at least one side wall of the air-cooling plate 2. Specifically, the air-cooling panel 2 includes: inside forced air cooling board 2 and tip forced air cooling board 2, tip forced air cooling board 2 sets up the both ends at battery module 100, and inside forced air cooling board 2 is located between two tip forced air cooling boards 2, wherein, tip forced air cooling board 2 only has cooling duct 3 on a lateral wall, and all be provided with cooling duct 3 on two lateral walls of inside forced air cooling board 2, at least, one cooling duct 3 has on every lateral wall, and every cooling duct 3 all corresponds an electric core 1, therefore, also can say, every forced air cooling board 2 can cool off the heat transfer to two or four electric cores 1 simultaneously, can make heat exchange efficiency higher, and then make the cooling effect better.
Further, the cooling air duct 3 has an air-cooling panel air intake 31 and an air-cooling panel air outlet 32, wherein the air-cooling panel air intake 31 is formed at the vertical bottom of the air-cooling panel 2 and is configured as a sub air intake of the battery module air intake 101, and the air-cooling panel air outlet 32 is formed at the lateral end of the air-cooling panel 2 and is configured as a sub air outlet of the battery module air outlet 102. That is to say, the cooling gas that gets into from casing air intake 201 can get into inside battery module 100 through a plurality of sub-air intakes respectively simultaneously to can carry out the heat transfer of refrigerating in step to all electric cores 1 in battery module 100 simultaneously, with further improved the holistic heat exchange efficiency of battery module 100, and then improved the holistic heat exchange efficiency of battery package 1000.
Moreover, the air-cooled plate air inlet 31 of each air-cooled plate 2 is only communicated with the air-cooled plate air outlet 32 of the air-cooled plate itself, and is not communicated with the air-cooled plate air outlets 32 of other air-cooled plates 2, so that a plurality of synchronously running refrigeration routes are formed inside the battery module 100, the phenomenon of turbulent flow is avoided, and the heat exchange efficiency can be effectively improved.
As shown in fig. 6 and 7, the air cooling plate 2 is integrally manufactured by an injection molding manufacturing process, so that the strength of the air cooling plate 2 can be effectively ensured. Wherein, cooling air duct 3 includes: and a plurality of air inlet ends of the plurality of sub-air ducts 33 are respectively communicated with the air inlet 31 of the air cooling plate, and a plurality of air outlet ends of the plurality of sub-air ducts 33 are respectively communicated with the air outlet 32 of the air cooling plate. Cooling duct 3 comprises many independent sub-wind channels 33 promptly, many sub-wind channels 33 mutual independence to avoid producing the phenomenon of turbulent flow, consequently can make the cooling gas can more smooth-going flow through forced air cooling board 2, in order to avoid cooling gas to be detained and influence the cooling heat transfer effect in forced air cooling board 2, consequently, can make forced air cooling board 2 better to the cooling heat transfer effect of electric core 1, and then make the holistic heat transfer effect of battery module 100 better.
Further, two adjacent sub-air ducts 33 are separated by the air guide rib 34, and the air guide rib 34 is abutted against the side wall of the electric core 1. Wherein, the wind guide convex rib 34 is integrally formed on the air cooling plate 2 to ensure the setting stability. Air guide ribs 34 are multiple, and multiple air guide ribs 34 are arranged at equal intervals, so that the width of each sub-air channel 33 is equal, and uniform refrigeration and heat exchange at each position of the battery cell 1 are facilitated. From this, can make the heat transfer everywhere of electric core 1 more even to promote the heat transfer effect of forced air cooling board 2.
Wherein, make wind-guiding fin 34 and electric core 1's lateral wall stop to make electric core 1 can spacing clamp establish between two adjacent air-cooled board 2's wind-guiding fin 34, in order to guarantee electric core 1's stability that sets up, and, still can have certain cushioning effect to electric core 1's inflation, with the inflation of effectual absorption electric core 1 when charging and discharging, thereby avoid causing the damage of electric core 1 and battery module 100.
Referring to fig. 6, a guide inclined plane 343 is formed at an end of each guide rib 34 close to the air inlet 31 of the air-cooling panel. The diversion inclined plane 343 can play an effective diversion role, so that the cooling gas flowing in from the air inlet 31 of the air cooling plate can be evenly dispersed into the two sub-air ducts 33 on the two sides by the air guiding convex rib 34, and the refrigerant gas flowing through each sub-air duct 33 can be further ensured to be equal, thereby further improving the balanced refrigeration effect on the battery cell 1.
With reference to the embodiment shown in fig. 6 and 7, the wind guiding ribs 34 include: long ribs 341 and short ribs 342, the short ribs 342 are disposed between two adjacent long ribs 341, and meanwhile, the long ribs 341 are also disposed between two adjacent short ribs 342, for example, three long ribs 341 and two short ribs 342. Wherein the short ribs 342 extend straight in the lateral direction, and the long ribs 341 include: a straight section 3411 and a vertical section 3412, the straight section 3411 extends straight in the transverse direction, the vertical section 3412 extends in the vertical direction, and the lower end of the vertical section 3412 is close to the air inlet. The vertical section 3412 is adapted to introduce the cooling air from the air inlet 31 of the air-cooling plate into the cooling channel, and the short ribs 342 distribute the cooling air evenly into the sub-air ducts 33. The reason why all the wind guide ribs 34 are not provided with the long ribs 341 is that if the air inlet 31 of the air-cooling plate has too many vertical sections 3412, the cooling air is difficult to enter the cooling channel, and therefore, the air intake amount can be effectively ensured by adopting the long ribs 341 and the short ribs 342.
With reference to the embodiments shown in fig. 3, 6 and 7, the air-cooling panel 2 further includes: battery explosion-proof valve smoke exhausting structure 21, battery explosion-proof valve smoke exhausting structure 21 set up in the upper end of forced air cooling board 2 and are located the top of cooling duct 3 to when being used for taking place the thermal runaway at electric core 1, electric core 1 can be through the timely discharge of battery module 100 outside from explosion-proof valve 11 department exhaust smoke and dust of exhaust and high-temperature gas of electric core explosion-proof valve smoke exhausting structure 21, in order to avoid causing the damage to battery module 100.
The battery cell explosion-proof valve communicating hole 211 is formed in the lower end of the battery cell explosion-proof valve smoke discharging structure 21, and the explosion-proof valve 11 of the battery cell 1 and the battery cell explosion-proof valve communicating hole 211 are opposite to the laminating arrangement. Every electric core explosion-proof valve intercommunicating pore 211 constructs for semi-circular structure, two electric core explosion-proof valve intercommunicating pores 211 of two adjacent air cooling plates 2 constitute a complete approximate circular shape hole with set up electric core 1's explosion-proof valve 11 between these two air cooling plates 2 just to setting up, 11 exhaust smoke and dust of explosion-proof valve and high-temperature gas can flow into electric core explosion-proof valve smoke exhaust structure 21 through electric core explosion-proof valve intercommunicating pore 211 in, in order to avoid smoke and dust and high-temperature gas's diffusion, and can not lead to the fact the influence to electric core 1's utmost point post, thereby electric core 1 and battery module 100's security has been guaranteed.
Further, have on the explosion-proof valve smoke exhaust structure 21 of electric core along the smoke exhaust hole 212 that vertically link up, smoke exhaust hole 212 and electric core explosion-proof valve intercommunicating pore 211 intercommunication, a plurality of smoke exhaust holes 212 of a plurality of forced air cooling boards 2 are linked together in order to constitute the smoke channel, the smoke outlet setting of battery module 100 is at the vertical both ends of battery module 100, the smoke outlet is linked together with the smoke channel, thereby guaranteed which electric core 1 in the battery module 100 when taking place the thermal runaway, exhaust smoke and dust and high-temperature gas all can flow through and finally discharge outside battery module 100 from the smoke outlet, in order to avoid taking place the thermal runaway electric core 1 to cause the harm to other electric core 1, consequently, can effectively avoid endangering other normal operating electric core 1, and then the effectual holistic security of battery module 100 that has promoted.
As shown in fig. 3, fig. 6 and fig. 7, the air cooling plate 2 has a cell installation space 4, the cell installation space 4 is formed on at least one side wall of the air cooling plate 2, and the cooling air duct 3 is formed in the cell installation space 4, that is, the cell installation space 4 is provided on two side walls of the internal air cooling plate 2, the cell installation space 4 is provided on only one side wall of the end air cooling plate 2, the cell 1 is suitable for spacing setting between two cell installation spaces 4 of two adjacent air cooling plates 2, so as to ensure the stability of the setting of the cell 1, and further ensure the overall stability of the battery module 100.
In order to facilitate the assembly and fixation of the battery module 100, the invention provides a positioning and matching structure between two adjacent air cooling plates 2, so that all the air cooling plates 2 can be sequentially positioned and assembled when the battery module 100 is assembled, thereby improving the assembly speed and the assembly accuracy.
Further, the fixing hole 53 that runs through along the longitudinal direction is provided on the positioning and matching structure, and the battery module 100 further includes: and the fixing ribs 6 are suitable for sequentially penetrating the plurality of fixing holes 53 among the plurality of air cooling plates 2 so as to connect the plurality of air cooling plates 2. That is to say, the location cooperation structure has not only realized the location cooperation between two adjacent forced air cooling boards 2, but also integrated the effect of fastening battery module 100 to make same structure have two effects simultaneously concurrently, consequently, more save and arrange the space, can make the overall structure of forced air cooling board 2 compacter.
Fixed muscle 6 has realized the horizontal and vertical spacing connection between a plurality of forced air cooling board 2 with the cooperation of fixed orifices 53 promptly to establish ties together polylith forced air cooling board 2, and electric core 1 is spacing between two adjacent forced air cooling boards 2, consequently, has realized that battery module 100 is holistic stable in groups.
Further, referring to fig. 3, the battery module 100 further includes: the end plate 7, the end plate 7 sets up the vertical both ends at battery module 100, has fixed muscle mating holes 71 on the end plate 7, and the tip of fixed muscle 6 is suitable for with fixed muscle mating holes 71 grafting fixed to through welded mode and fixed muscle mating holes 71 fixed connection, in order to realize battery module 100 fixed in groups.
The battery modules 100 are specifically grouped in the following manner: at first, cooperate the installation in proper order through the location fit structure with all wind-cold plate 2, and set up electric core 1 between two adjacent wind-cold plate 2 simultaneously, later align end plate 7 and the cooperation of wind-cold plate 2, later use fixed muscle 6 to pass fixed muscle mating holes 71 and fixed orifices 53 in proper order, in order to accomplish the series connection of all wind-cold plate 2 and end plate 7, carry out welded fastening with the tip of fixed muscle 6 and fixed muscle mating holes 71 at last, in order to finally accomplish fastening of battery module 100 in groups.
With reference to the embodiments shown in fig. 3, 6 and 7, the positioning and fitting structure includes: the location is to inserting subassembly 5, is provided with on a lateral wall of forced air cooling board 2 to the sunken mating holes 51 of inserting of forced air cooling board 2, is provided with on another lateral wall of forced air cooling board 2 to the outer outstanding grafting cooperation sleeve 52 of forced air cooling board 2, and wherein, is linked together with grafting cooperation sleeve 52 to inserting mating holes 51, and fixed orifices 53 forms on grafting cooperation sleeve 52 to be convenient for fixed muscle 6 passes forced air cooling board 2, in order to establish ties all forced air cooling boards 2 together fixedly.
The inserting matching sleeve 52 of the air cooling plate 2 is matched and inserted with the inserting matching hole 51 of another adjacent air cooling plate 2 to form a positioning inserting component 5, so that the matching installation between the two adjacent air cooling plates 2 is realized.
As shown in fig. 6, the air-cooling panel 2 further includes: go up bearing structure 22 and lower bearing structure 23, go up bearing structure 22 and set up in the upper end of forced air cooling board 2, and lower bearing structure 23 sets up the lower extreme at forced air cooling board 2, and wherein, go up and prescribe a limit to electric core installation space 4 between bearing structure 22 and the lower bearing structure 23, and electric core 1 is suitable for spacing support between last bearing structure 22 and lower bearing structure 23 to realize spacing to electric core 1 in vertical.
Wherein, the location is formed respectively on last bearing structure 22 and lower bearing structure 23 to the subassembly 5 of inserting to in order to realize the coincidence of stress structure and fastening structure, it not only has the effect of carrying out spacing support to electric core 1 promptly to go up bearing structure 22 and lower bearing structure 23, but also has the fixed muscle 6 of cooperation, with the effect of fastening battery module 100 on vertical, and then can make the structure of forced air cooling board 2 compacter, the functionality is stronger.
Further, referring to fig. 6 and 7, at least one side wall has two cell mounting spaces 4, wherein the two side walls of the internal air-cooling plate 2 have the cell mounting spaces 4, and each side wall has two cell mounting spaces 4. That is to say, every inside forced air cooling board 2 has four electric core installation spaces 4, can carry on spacingly to four electric cores 1 simultaneously, and inside forced air cooling board 2 is whole to be the axisymmetric structure promptly, and every group battery module 100 has two rows of electric cores 1.
Wherein a cell spacer 24 is arranged between the two cell installation spaces 4 on each side wall. The battery core spacer 24 has an isolation effect on two adjacent battery cores 1, so as to avoid the mutual influence of the two battery cores 1, and simultaneously reserve expansion spaces for the two battery cores 1, so as to ensure the safety of the battery cores 1.
And, the outer end of going up supporting structure 22 and lower supporting structure 23 has horizontal backstop wall, and horizontal backstop wall and electric core spacer 24 still can be at horizontal spacing electric core 1 to support structure 22 and lower supporting structure 23 spacing effect in vertical on the cooperation, with the stable spacing installation of electric core 1 between two adjacent forced air cooling boards 2.
As shown in fig. 6, the upper support structure 22 includes: two end upper support blocks 221 and a middle upper support block 222 disposed between the two end upper support blocks 221, the two end upper support blocks 221 are formed at both lateral ends of the air-cooled plate 2, respectively, and the middle upper support block 222 is formed at a middle position of the air-cooled plate 2. And the lower support structure 23 comprises: two end lower support blocks 231 and two inner lower support blocks 232, the two end lower support blocks 231 are respectively formed at both lateral ends of the air cooling plate 2, and the two inner lower support blocks 232 are formed on the air cooling plate 2 and located between the two end lower support blocks 231.
The two end upper supporting blocks 221 are respectively opposite to the two end lower supporting blocks 231 up and down, the inner lower supporting block 232 is located at the transverse middle position between the end upper supporting block 221 and the middle upper supporting block 222, and the middle upper supporting block 222 is located at the transverse middle position between the two inner lower supporting blocks 232. Therefore, the stress of the battery cell 1 supported between the upper support structure 22 and the lower support structure 23 can be more uniform, so as to avoid the damage of the battery cell 1 caused by the excessive local stress.
And, fixed muscle 6 wears to establish upper supporting structure 22 and lower supporting structure 23 respectively to from a plurality of positions with all wind-cooling plate 2 vertically establish ties, and then guaranteed the holistic stability of battery module 100 and promoted its holistic firm degree.
With reference to the embodiments shown in fig. 3, fig. 6 and fig. 7, an inward-recessed pair of insertion holes 215 is disposed at one longitudinal end of the cell explosion-proof valve smoke discharging structure 21, an outward-protruding insertion component 216 is disposed at the other longitudinal end of the cell explosion-proof valve smoke discharging structure 21, and the pair of insertion holes 215 is communicated with the insertion component 216, so as to form the smoke discharging hole 212 and form a smoke discharging channel.
Wherein, plug connector 216 of forced air cooling board 2 and another forced air cooling board 2 adjacent to cooperate the grafting to jack 215 to the cooperation installation between two electric core explosion-proof valve smoke exhaust structure 21 of two adjacent forced air cooling boards 2 has further guaranteed the continuity and the leakproofness of smoke exhaust passage, thereby makes from explosion-proof valve 11 exhaust smoke and dust and high-temperature gas only can follow the discharge fume outlet discharge at battery module 100 horizontal both ends.
As shown in fig. 2, fig. 3, fig. 5, fig. 6 and fig. 7, the lower portion of the battery module 100 further has a mounting groove for mounting the sealing ring 8, so that the sealing ring 8 can be stably disposed between the battery module air inlet 101 and the housing air inlet 201 to perform an effective sealing function, thereby preventing the cooling gas entering from the housing air inlet 201 from entering the battery pack 1000 without passing through the battery module 100, and ensuring a cooling effect on the battery module 100.
Wherein a portion of the mounting grooves is formed at the lower end of the inner lower support block 232 (refer to fig. 6 and 7), and the other portion of the mounting grooves is formed at the lower end of the end plate 7 (refer to fig. 3), and the sealing rings 8 are adapted to be fitted into the two portions of the mounting grooves, respectively, so as to ensure the sealing effect everywhere between the battery module 100 and the case 200.
A vehicle according to another aspect of an embodiment of the present invention includes the battery pack 1000 described in the above embodiment. Other configurations of the vehicle, such as transmissions, braking systems, steering systems, etc., are known in the art and well known to those skilled in the art, and therefore will not be described in detail herein.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (9)

1. A battery pack (1000), comprising:
the air conditioner comprises a shell (200), wherein a shell air inlet (201) is formed in the bottom wall of the shell (200), and a shell air outlet (202) is formed in the side wall of the shell (200);
the battery module (100) is arranged in the shell (200), a battery module air inlet (101) is formed at the bottom of the battery module (100), the shell air inlet (201) and the battery module air inlet (101) are arranged just opposite to each other and are tightly attached to each other and are communicated with each other, a battery module air outlet (102) is formed at two transverse ends of the battery module (100), and the battery module air outlet (102) is communicated with the shell air outlet (202);
the battery module (100) includes: the battery module comprises battery cores (1) and air-cooling plates (2), wherein the air-cooling plates (2) are provided with cooling air ducts (3), each battery core (1) is clamped between two cooling air ducts (3) of two adjacent air-cooling plates (2), each cooling air duct (3) is provided with an air-cooling plate air inlet (31) and an air-cooling plate air outlet (32), the air-cooling plate air inlets (31) are formed at the vertical bottoms of the air-cooling plates (2) and are constructed as sub air inlets of the battery module air inlets (101), and the air-cooling plate air outlets (32) are formed at the transverse ends of the air-cooling plates (2) and are constructed as sub air outlets of the battery module air outlets (102);
air-cooling board (2) have electric core installation space (4), electric core installation space (4) form on at least one lateral wall of air-cooling board (2), cooling duct (3) form in electric core installation space (4), adjacent two be provided with the location fit structure between air-cooling board (2), the structural fixed orifices (53) of following vertically lining up of location fit have been seted up, battery module (100) still includes: the fixing ribs (6) are suitable for sequentially penetrating through the fixing holes (53) among the air cooling plates (2) so as to connect the air cooling plates (2);
the location cooperation structure includes: location is to inserting subassembly (5), be provided with on one side wall of forced air cooling board (2) inside sunken to inserting mating holes (51), be provided with outside outstanding grafting cooperation sleeve (52) on another lateral wall of forced air cooling board (2), to inserting mating holes (51) with grafting cooperation sleeve (52) are linked together, forced air cooling board (2) grafting cooperation sleeve (52) and adjacent another forced air cooling board (2) to inserting mating holes (51) cooperation grafting in order to constitute location is to inserting subassembly (5), fixed orifices (53) form on grafting cooperation sleeve (52).
2. The battery pack (1000) of claim 1, wherein the housing inlet (201) is configured as a blow inlet.
3. The battery pack (1000) according to claim 1, wherein the cooling air duct (3) comprises: the air cooling system comprises a plurality of sub-air ducts (33), a plurality of air inlet ends of the sub-air ducts (33) are communicated with an air cooling plate air inlet (31) respectively, and a plurality of air outlet ends of the sub-air ducts (33) are communicated with an air cooling plate air outlet (32) respectively.
4. The battery pack (1000) according to claim 3, wherein two adjacent sub-air ducts (33) are separated by a wind guiding rib (34), and the wind guiding rib (34) abuts against the side wall of the battery cell (1).
5. The battery pack (1000) according to claim 4, wherein the wind-guiding ribs (34) comprise: long ribs (341) and short ribs (342), the short ribs (342) being disposed between two adjacent long ribs (341), the short ribs (342) extending straight in the transverse direction, the long ribs (341) including: a flat section (3411) and a vertical section (3412), wherein the flat section (3411) extends horizontally and straightly, the vertical section (3412) extends vertically, and the lower end of the vertical section (3412) is close to the air inlet.
6. The battery pack (1000) of claim 1, wherein the air-cooling panel (2) further comprises: battery cell explosion-proof valve smoke exhausting structure (21), battery cell explosion-proof valve smoke exhausting structure (21) sets up the upper end of forced air cooling board (2) just is located the top of cooling duct (3), battery cell explosion-proof valve intercommunicating pore (211) has been seted up to the lower extreme of battery cell explosion-proof valve smoke exhausting structure (21), the explosion-proof valve (11) of battery cell (1) with battery cell explosion-proof valve intercommunicating pore (211) is just to the laminating setting.
7. The battery pack (1000) according to claim 6, wherein the cell explosion-proof valve smoke evacuation structure (21) is provided with a smoke evacuation hole (212) which penetrates along a longitudinal direction, the smoke evacuation hole (212) is communicated with the cell explosion-proof valve communication hole (211), the smoke evacuation holes (212) of the air cooling plates (2) are communicated to form a smoke evacuation channel, smoke evacuation outlets of the battery module (100) are arranged at two longitudinal ends of the battery module (100), and the smoke evacuation outlets are communicated with the smoke evacuation channel.
8. The battery pack (1000) of claim 1, wherein the air-cooling panel (2) further comprises: go up bearing structure (22) and lower bearing structure (23), it sets up to go up bearing structure (22) the upper end of forced air cooling board (2), lower bearing structure (23) set up the lower extreme of forced air cooling board (2), go up bearing structure (22) with inject between lower bearing structure (23) electric core installation space (4), electric core (1) limit support is in go up bearing structure (22) with between lower bearing structure (23), the location is formed respectively to inserting subassembly (5) go up bearing structure (22) with on lower bearing structure (23).
9. A vehicle, characterized by comprising a battery pack (1000) according to any one of claims 1-8.
CN202010602709.4A 2020-06-29 2020-06-29 Battery pack and vehicle Active CN111599964B (en)

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CN112117413A (en) * 2020-10-26 2020-12-22 湖北亿纬动力有限公司 Clamping plate, battery module and battery pack
CN114421048A (en) * 2021-11-30 2022-04-29 东风汽车集团股份有限公司 Battery package, air-cooled battery system and car
CN114171825A (en) * 2022-01-06 2022-03-11 欣旺达电动汽车电池有限公司 Air cooling structure and battery pack
CN114464947B (en) * 2022-02-10 2022-08-23 深圳市乔威电源有限公司 Mobile power supply equipment with adjustable electricity storage capacity

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CN206040913U (en) * 2016-09-29 2017-03-22 宁德时代新能源科技股份有限公司 Battery module

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CN203746929U (en) * 2013-12-29 2014-07-30 长城汽车股份有限公司 Battery system for supplying power for hybrid vehicle
CN206040913U (en) * 2016-09-29 2017-03-22 宁德时代新能源科技股份有限公司 Battery module

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