CN107634163B - Air-cooled battery system - Google Patents
Air-cooled battery system Download PDFInfo
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- CN107634163B CN107634163B CN201710836803.4A CN201710836803A CN107634163B CN 107634163 B CN107634163 B CN 107634163B CN 201710836803 A CN201710836803 A CN 201710836803A CN 107634163 B CN107634163 B CN 107634163B
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- air
- cooling
- battery
- cooling air
- battery module
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- 238000001816 cooling Methods 0.000 claims abstract description 179
- 238000007789 sealing Methods 0.000 claims description 47
- 238000002955 isolation Methods 0.000 claims description 21
- 239000010410 layer Substances 0.000 claims description 10
- 239000012790 adhesive layer Substances 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 4
- 239000003570 air Substances 0.000 description 164
- 230000017525 heat dissipation Effects 0.000 description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 5
- 229910052744 lithium Inorganic materials 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000012080 ambient air Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- 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
Abstract
The invention relates to an air-cooled battery system, which comprises a box body, wherein a battery module block comprising a plurality of battery modules arranged in an array is arranged in the box body, a first gap is arranged between the battery module block and the inner wall of the box body, an electric core is arranged in any battery module, the air-cooled battery system comprises a first air cooling mechanism and a second air cooling mechanism, and a cooling air inlet and a cooling air outlet are arranged on the box body; the first air cooling mechanism and the second air cooling mechanism are respectively matched with the battery cell and the battery module, and the first air cooling mechanism and the second air cooling mechanism are respectively matched with the cooling air inlet and the cooling air outlet. The invention provides two air cooling structures, and the heat generated by the battery core is taken away from two ways respectively, so that the requirements of consumers on quick charge and high-power discharge can be met only by using a conventional cooling mode, and a plurality of cooling modes are not required, so that the cost is saved, and the dead weight of the battery is reduced.
Description
Technical Field
The invention belongs to the technical field of methods or devices for directly converting chemical energy into electric energy, such as battery packs, and particularly relates to an air-cooled battery system with a double-air-duct design and a better heat dissipation effect.
Background
At present, under the support of the country and the advantage of the market, the power lithium battery industry is developed very rapidly, and the application of the power lithium battery industry is expanded to the fields of electric buses, electric cars, micro buses, energy storage and the like. With the large-scale application of power lithium batteries, increasingly significant problems are also increasing, especially the heat dissipation problem of power battery systems.
The driving force of the electric automobile is derived from a power battery system. The power battery system generates a large amount of heat in the process of charging/discharging, so that the temperature of the battery is increased, and the performance of the power battery system is greatly reduced. Studies have shown that the cycle life of a power lithium battery will drop significantly when the temperature exceeds 45 ℃. In addition, since the side reactions of the power lithium battery are increased due to the high temperature, the charge/discharge power of the battery is limited in practical use for the purpose of protecting the battery.
In the prior art, as the requirements of consumers on quick charge, high-power discharge and the like are higher and higher, the conventional air cooling mode is not only low in cooling efficiency, but also difficult to consider sealing of a box, and if multiple cooling modes are simultaneously arranged, resource waste is easily caused to a certain extent.
Disclosure of Invention
The invention solves the technical problems that in the prior art, as the requirements of consumers on quick charge, high-power discharge and the like are higher and higher, the conventional air cooling mode is not only low in cooling efficiency, but also difficult to consider the sealing of a box body, and if a plurality of cooling modes are simultaneously arranged, the problem of resource waste to a certain extent is easily caused, so that the battery box with an optimized double cooling mode and the control method thereof are provided.
The technical scheme adopted by the invention is that the air-cooled battery system comprises a box body, wherein a battery module block comprising a plurality of battery modules arranged in an array is arranged in the box body, a first gap is arranged between the battery module block and the inner wall of the box body, an electric core is arranged in any battery module, the air-cooled battery system comprises a first air-cooled mechanism and a second air-cooled mechanism, and a cooling air inlet and a cooling air outlet are arranged on the box body; the first air cooling mechanism is matched with the battery cell, the second air cooling mechanism is matched with the battery module, and the first air cooling mechanism and the second air cooling mechanism are respectively matched with the cooling air inlet and the cooling air outlet.
Preferably, the battery module comprises a left side plate, a right side plate, a front end plate, a rear end plate, a top cover and a second gap, wherein the left side plate and the right side plate are respectively arranged on the left side and the right side of the battery cell, the front end plate and the rear end plate are respectively arranged at the front end and the rear end of the battery cell, the left side plate, the front end plate, the right side plate and the rear end plate are sequentially connected end to end, the top cover is respectively connected with the top ends of the left side plate, the front end plate, the right side plate and the rear end plate, and the battery cell is provided with the second gap with the left side plate and the right side plate; a wire harness isolation plate is arranged between the battery core and the top cover, and a busbar is arranged on the wire harness isolation plate.
Preferably, the first air cooling mechanism comprises a heat conducting adhesive layer and radiating fins which are sequentially arranged at the bottom of the battery cell, the radiating fins comprise a plurality of radiating channels, one ends of the radiating channels are communicated with a cooling air inlet space, and the other ends of the radiating channels are communicated with a cooling air outlet space; the cooling air inlet, the radiating fins and the cooling air outlet are sequentially communicated into a first air channel.
Preferably, the cooling air outlets are a plurality of first air cooling outlets arranged on the side wall of the box body, and a first fan is arranged at the first air cooling outlets.
Preferably, the second air cooling mechanism comprises an air pipe arranged at a first gap at the left side and the right side of the battery module block, and one end of the air pipe is communicated with a cooling air inlet space; the top of the air pipe, the left side plate, the right side plate, the wire harness isolation plate and the top cover are all provided with a plurality of through holes; the cooling air inlet, the air pipe on the left side of the battery module block, the through hole on the top of the air pipe on the left side of the battery module block, the through hole on the left side plate, the second gap, the through hole of the wire harness isolation plate, the through hole of the top cover and the cooling air outlet are sequentially communicated into a second left air channel, and the cooling air inlet, the air pipe on the right side of the battery module block, the through hole on the top of the air pipe on the right side of the battery module block, the through hole on the right side plate, the second gap, the through hole of the wire harness isolation plate, the through hole of the top cover and the cooling air outlet are sequentially communicated into a second right air channel.
Preferably, the cooling air outlets are a plurality of second air cooling outlets arranged at the top of the box body, and a second fan is arranged at the second air cooling outlets.
Preferably, heat insulation layers are respectively arranged between the front end plate and the rear end plate and between the front end plate and the battery cell.
Preferably, the cooling air inlet and the cooling air outlet are respectively and correspondingly provided with a sealing component.
Preferably, the sealing assembly comprises a sealing shell, sealing latch pieces are inserted into the sealing shell, through holes are respectively formed in shell surfaces of the sealing shell corresponding to the front surface and the back surface of the sealing latch pieces, and the through holes are respectively matched with the cooling air inlet and the cooling air outlet.
Preferably, the sealing latch piece at the cooling air outlet is further provided with a plurality of safety through holes, and a waterproof and breathable film is attached to one side of the sealing latch piece at the cooling air outlet.
The invention provides an air-cooled battery system with an optimized structure, which is characterized in that a battery module block formed by array of battery modules is arranged in a box body, an electric core is arranged in any battery module, the air-cooled battery system comprises a first air-cooled mechanism matched with the electric core and a second air-cooled mechanism matched with the battery module, and a cooling air inlet and a cooling air outlet are arranged on the box body in a matched manner, namely, two air-cooled structures are provided, and heat generated by the electric core is taken away from two ways respectively, so that the requirements of consumers on quick charge and high-power discharge can be met only by using a conventional cooling mode, multiple cooling modes are not required, the cost is saved, and the dead weight of the battery is lightened.
Drawings
Fig. 1 is a schematic structural diagram of an air-cooled battery system according to the present invention;
fig. 2 is an exploded view of an air-cooled battery system of the present invention;
fig. 3 is an exploded view of a second air cooling mechanism according to the present invention, which is coupled to any one of the battery modules;
FIG. 4 is a schematic view of the left or right side plate of the present invention;
fig. 5 is a schematic structural view of the seal assembly of the present invention.
Detailed Description
The present invention will be described in further detail with reference to examples, but the scope of the present invention is not limited thereto.
As shown in the figure, the invention relates to an air-cooled battery system, which comprises a box body 1, wherein a battery module block 3 comprising a plurality of battery modules 2 arranged in an array is arranged in the box body 1, a first gap 4 is arranged between the battery module block 3 and the inner wall of the box body 1, an electric core 5 is arranged in any battery module 2, the air-cooled battery system comprises a first air-cooled mechanism and a second air-cooled mechanism, and a cooling air inlet 6 and a cooling air outlet 7 are arranged on the box body 1; the first air cooling mechanism is matched with the battery cell 5, the second air cooling mechanism is matched with the battery module 2, and the first air cooling mechanism and the second air cooling mechanism are respectively matched with the cooling air inlet 6 and the cooling air outlet 7.
In the invention, the air-cooled battery system is integrally formed into a box body 1 structure, the battery module blocks 3 are arranged in the box body 1, meanwhile, the battery module blocks 3 comprise battery modules 2 which are arranged in an array, a proper number of the battery modules 2 can be selected according to actual power supply requirements, and the battery modules 2 are combined into a structure which accords with the structure of the box body 1.
In the invention, the battery module 3 is generally one layer, and can be arranged into a plurality of layers which are stacked, when the battery module 3 is arranged into a plurality of layers, the layers are separated by the supporting piece, so that good ventilation and heat dissipation effects are ensured.
In the invention, the power supply of the air-cooled battery system is completed by the battery cell 5 in the battery module 2, and the first air-cooled mechanism and the second air-cooled mechanism are arranged to radiate the heat of the whole air-cooled battery system because the battery cell 5 works to generate heat, so that the safety and stability of the system are ensured.
In the invention, the first air cooling mechanism is matched with the battery cell 5, and most of heat generated by the battery cell 5 is taken away.
In the invention, a first gap 4 is arranged between the battery module block 3 and the inner wall of the box body 1, the gap 4 is closely related to a second air cooling mechanism, and the second air cooling mechanism takes away the rest of heat by being matched with the first gap 4 and the battery module 2, so that the stability of the heat in the system is further ensured.
In the invention, the first air cooling mechanism and the second air cooling mechanism are matched with the cooling air inlet 6 and the cooling air outlet 7, namely, the work of cooling and radiating by two types of air cooling can be completed only by adopting cold air filling.
The invention provides two air cooling structures, and the heat generated by the battery cell 5 is taken away from two ways respectively, so that the requirements of consumers on quick charge and high-power discharge can be met only by using a conventional cooling mode, and a plurality of cooling modes are not required, so that the cost is saved, and the dead weight of the battery is reduced.
The battery module 2 comprises a left side plate 8 and a right side plate 9 which are respectively arranged on the left side and the right side of the battery cell 5, and a front end plate 10 and a rear end plate 11 which are respectively arranged on the front end and the rear end of the battery cell 5, wherein the left side plate 8, the front end plate 10, the right side plate 9 and the rear end plate 11 are sequentially connected end to end, the battery module 2 also comprises a top cover 12 which is respectively connected with the top ends of the left side plate 8, the front end plate 10, the right side plate 9 and the rear end plate 11, and a second gap 13 is arranged between the battery cell 5 and the left side plate 8 and the right side plate 9; a wire harness isolation plate 14 is arranged between the battery core 5 and the top cover 12, and a busbar 15 is arranged on the wire harness isolation plate 14.
In the invention, the basic configuration of the battery module 2 comprises a left side plate 8, a front end plate 10, a right side plate 9 and a rear end plate 11 which are arranged outside an electric core 5 and are sequentially connected end to end, wherein top covers 12 are arranged at the top ends of the left side plate 8, the front end plate 10, the right side plate 9 and the rear end plate 11, and the battery module is integrally packaged.
In the invention, for convenience in packaging, the left side plate 8 and the right side plate 9 generally comprise vertical plates, baffle plates 26 are horizontally arranged below the vertical plates, so that an L-shaped plate is formed, and the battery cells 5 are supported by the baffle plates 26, so that the stability of the positions of the battery modules 2 is ensured.
In the invention, the second gap 13 is arranged between the battery cell 5 and the left side plate 8 and the right side plate 9, the second gap 13 plays a role in isolation, and the heat transfer between the battery cell 5 and the external environment through the left side surface and the right side surface of the battery cell 5 is blocked by the air in the space formed by the second gap 13, so that the heat preservation design of the left side and the right side of the battery cell 5 is completed.
In the invention, a wire harness isolation plate 14 is arranged between the battery core 5 and the top cover 12, and a busbar 15 is arranged on the wire harness isolation plate 14 to complete the basic electric connection of the battery module 2.
The first air cooling mechanism comprises a heat conducting adhesive layer 16 and radiating fins 17 which are sequentially arranged at the bottom of the battery cell 5, the radiating fins 17 comprise a plurality of radiating channels, one end of each radiating channel is spatially communicated with the cooling air inlet 6, and the other end of each radiating channel is spatially communicated with the cooling air outlet 7; the cooling air inlet 6, the radiating fins 17 and the cooling air outlet 7 are sequentially communicated into a first air channel.
The cooling air outlets 7 are a plurality of first air cooling outlets 7-1 arranged on the side wall of the box body 1, and a first fan 18-1 is arranged at the first air cooling outlets 7-1.
In the invention, the first air cooling mechanism comprises a heat conducting adhesive layer 16 and a heat radiating fin 17 which are sequentially arranged at the bottom of the battery cell 5, namely, a part of heat generated by the battery cell 5 is transferred to the heat conducting adhesive layer 16 through the bottom surface of the battery cell 5 and then transferred to the heat radiating fin 17, and the heat is summarized, namely, the cooling air inlet 6, the heat radiating fin 17 and the cooling air outlet 7 are sequentially communicated to form a first air duct.
In the present invention, the thermal conductivity of the thermal conductive adhesive layer 16 is generally 1.5-2.5W/m-K, and any material satisfying this thermal conductivity is within a selectable range.
In the invention, the radiating fins 17 comprise a plurality of parallel radiating channels, and the two ends of each radiating channel are respectively communicated with the cooling air inlet 6 and the cooling air outlet 7, so that cold air flows in from the cooling air inlet 6 and flows out from the cooling air outlet 7 after passing through the radiating channels in actual air cooling operation, and heat on the radiating fins 17 is taken away to finish the cooling operation of the battery cells 5.
In the present invention, the heat dissipation fins 17 may be provided in units of the battery module block 3 for the convenience of installation and arrangement.
In the invention, the cooling air outlets 7 of the first air cooling mechanism are a plurality of first air cooling outlets 7-1 arranged on the side wall of the box body 1, and the first fans 18-1 are arranged at the first air cooling outlets 7-1, so that the heat can be accelerated to be dissipated through the action of the first fans 18-1.
In the invention, the reinforcing ribs are arranged between the adjacent heat dissipation channels, so that heat exchange can be enhanced, and wind resistance can be controlled within a certain range.
The second air cooling mechanism comprises an air pipe 19 arranged at the first gaps 4 at the left side and the right side of the battery module block 3, and one end of the air pipe 19 is spatially communicated with the cooling air inlet 6; the top of the air pipe 19, the left side plate 8, the right side plate 9, the wire harness isolation plate 14 and the top cover 12 are all provided with a plurality of through holes 20; the cooling air inlet 6, the air pipe 19 on the left side of the battery module block 3, the through hole 20 on the top of the air pipe 19 on the left side of the battery module block 3, the through hole 20 of the left side plate 8, the second gap 13, the through hole 20 of the wire harness isolation plate 14, the through hole 20 of the top cover 12 and the cooling air outlet 7 are sequentially communicated to form a second left air channel, and the cooling air inlet 6, the air pipe 19 on the right side of the battery module block 3, the through hole 20 on the top of the air pipe 19 on the right side of the battery module block 3, the through hole 20 of the right side plate 9, the second gap 13, the through hole 20 of the wire harness isolation plate 14, the through hole 20 of the top cover 12 and the cooling air outlet 7 are sequentially communicated to form a second right air channel.
The cooling air outlets 7 are a plurality of second air cooling outlets 7-2 arranged at the top of the box body 1, and second fans 18-2 are arranged at the second air cooling outlets 7-2.
In the invention, the second air cooling mechanism is provided with the air pipes 19 at the first gaps 4 at the left side and the right side of the battery module 3, and the inlet ends of the air pipes 19 are communicated with the cooling air inlet 6, so that cold air flows in from the cooling air inlet 6 and passes through the air pipes 19 to continue the subsequent flow in the actual air cooling operation.
In the invention, a plurality of through holes 20 are formed on the top of the air duct 19, the left side plate 8, the right side plate 9, the wire harness isolation plate 14 and the top cover 12, namely, a hollowed design is adopted, so that in the actual air cooling operation, cold air flows into the air duct 19 from the cooling air inlet 6, sequentially flows through the through holes 20 on the top of the air duct 19 on the left side or the right side of the battery module block 3, the through holes 20 on the left side plate 8 or the right side plate 9, the side surfaces of the battery cells 5, the through holes 20 of the wire harness isolation plate 14 and the through holes 20 of the top cover 12, and takes away the heat of the other part of the battery cells 5 and the heat generated by the bus bars 15 from the cooling air outlet 7, namely, the cooling air inlet 6, the air duct 19 on the left side of the battery module block 3, the through holes 20 on the top of the air duct 19 on the left side of the battery module block 3, the through holes 20 on the left side of the left side plate 8, the through holes 20 of the top cover 12 and the cooling air duct 7 are sequentially communicated to form a second left air duct, and the cooling air duct 6, the through holes 20 on the right side of the battery module block 3, the through holes 20 on the top cover 19, the top cover 14 and the second air harness isolation plate 14 are sequentially communicated with the cooling air duct 7.
In the invention, in the second air cooling mechanism, the trend of cold air is upward, so the cooling air outlet 7 is a plurality of second air cooling outlets 7-2 arranged at the top of the box body 1, and meanwhile, a second fan 18-2 is arranged at the second air cooling outlets 7-2, and the heat dissipation is accelerated through the action of the second fan 18-2.
And heat insulation layers 21 are respectively arranged between the front end plate 10, the rear end plate 11 and the battery cells 5.
In the invention, when cold air stops being fed, the heat transfer of the battery cell 5 to the outside is mainly carried out through the front end plate 10 and the rear end plate 11, so a heat insulation layer 21 is added between the front end plate 10, the rear end plate 11 and the battery cell 5, and the heat transfer between the battery cell 5 and the outside can be effectively blocked, thereby playing a role in heat preservation.
In the present invention, the heat insulating layer 21 may be any heat insulating effect, such as a foam material layer.
The cooling air inlet 6 and the cooling air outlet 7 are respectively and correspondingly provided with a sealing assembly 22.
The sealing assembly 22 comprises a sealing shell 23, sealing latch pieces 24 are inserted into the sealing shell 23, through holes 25 are respectively formed in the shell surfaces of the sealing shell 23 corresponding to the front surface and the back surface of the sealing latch pieces 24, and the through holes 25 are respectively matched with the cooling air inlet 6 and the cooling air outlet 7.
The sealing latch piece 24 at the cooling air outlet 7 is also provided with a plurality of safety through holes, and a waterproof and breathable film is attached to one side of the sealing latch piece 24 at the cooling air outlet 7.
In the invention, the cooling air inlet 6 and the cooling air outlet 7 are respectively and correspondingly provided with the sealing component 22, so that the environment inside the box body 1 is ensured to be a sealing environment under the condition of ending air cooling.
In the present invention, the seal assembly 22 at the cooling air outlet 7 may be mounted in cooperation with the first fan 18-1 and the second fan 18-2 in general.
In the invention, the sealing assembly 22 comprises a sealing shell 23 and a sealing latch piece 24 inserted in the sealing shell, when air cooling is started, the sealing latch piece 24 moves upwards, a through hole 25 on the shell surface of the sealing shell 23 is opened, so that air can be introduced into the cooling air inlet 6, and the cooling air outlet 7 can discharge air into ambient air, and forced air cooling operation on the battery cell 5 and the busbar 15 is completed; when the cooling is turned off, the sealing latch 24 returns to the original position and forms a seal against the entire case 1.
In the invention, when the pressure difference between the inside and the outside of the box body 1 is within 0-20 kpa, the sealing latch piece 24 should allow a small amount of air to pass through, so that the air pressure in the box body 1 is always the same as the ambient air pressure when the whole system is operated from a low altitude to a high altitude or from a high altitude to a low altitude, and thus the damage of the box body 1 is avoided, namely, the sealing latch piece 24 should enable the air to pass through but not the water to pass through, and a PP+GF30 material can be generally adopted.
In the invention, the sealing latch pieces 24 at the cooling air inlet 6 and the cooling air outlet 7 are different, wherein the sealing latch pieces 24 at the cooling air outlet 7 need to have a safety protection function, therefore, a plurality of safety through holes are further arranged on the sealing latch pieces 24 in the sealing assembly 22 at the cooling air outlet 7, a waterproof and breathable film is attached to one side of the sealing latch pieces 24, when the pressure difference between the inside and the outside of the box body 1 is higher than 20kpa, the sealing latch pieces 24 are firstly damaged, for example, when the battery cell 5 is out of control, a large amount of gas is generated in a short time, thus the pressure inside the box body 1 is quickly increased, and when the pressure difference between the inside and the outside of the box body 1 is higher than 20kpa, the sealing latch pieces 24 are automatically damaged and the gas is discharged out of the box body 1, so that the explosion of the box body 1 is avoided. In general, the waterproof breathable membrane may be made of e-PTFE material.
The invention solves the problems that in the prior art, as the requirements of consumers on quick charge, high-power discharge and the like are higher and higher, the conventional cooling modes such as air cooling are difficult to meet the requirements, and if a plurality of cooling modes are simultaneously arranged, the waste of resources to a certain extent is easily caused, the battery module block 3 formed by the array of the battery modules 2 is arranged in the box body 1, the battery core 5 is arranged in any battery module 2, the air-cooled battery system comprises a first air cooling mechanism matched with the battery core 5 and a second air cooling mechanism matched with the battery module 2, and the cooling air inlet 6 and the cooling air outlet 7 are matched with the box body 1, so that two air cooling structures are provided, and the heat generated by the battery core 5 is taken away from two ways respectively.
Claims (4)
1. The utility model provides an air-cooled battery system, includes the box, be equipped with the battery module piece including a plurality of battery module that set up in array in the box, be equipped with first clearance between the inner wall of battery module piece and box, be equipped with electric core, its characterized in that in any battery module: the air-cooled battery system comprises a first air-cooled mechanism and a second air-cooled mechanism, and a cooling air inlet and a cooling air outlet are formed in the box body; the first air cooling mechanism is matched with the battery cell, the second air cooling mechanism is matched with the battery module, and the first air cooling mechanism and the second air cooling mechanism are respectively matched with the cooling air inlet and the cooling air outlet;
the battery module comprises a left side plate, a right side plate, a front end plate, a rear end plate, a top cover and a second gap, wherein the left side plate and the right side plate are respectively arranged on the left side and the right side of the battery core, the front end plate and the rear end plate are respectively arranged at the front end and the rear end of the battery core, the left side plate, the front end plate, the right side plate and the rear end plate are sequentially connected end to end, the top cover is respectively connected with the top ends of the left side plate, the front end plate, the right side plate and the rear end plate, and the second gap is formed between the battery core and the left side plate and the right side plate; a wire harness isolation plate is arranged between the battery core and the top cover, and a busbar is arranged on the wire harness isolation plate;
the first air cooling mechanism comprises a heat conducting adhesive layer and radiating fins which are sequentially arranged at the bottom of the battery cell, the radiating fins comprise a plurality of radiating channels, one ends of the radiating channels are communicated with a cooling air inlet space, and the other ends of the radiating channels are communicated with a cooling air outlet space; the cooling air inlet, the radiating fins and the cooling air outlet are sequentially communicated into a first air channel;
the second air cooling mechanism comprises air pipes arranged at first gaps on the left side and the right side of the battery module block, and one end of each air pipe is communicated with the cooling air inlet space; the top of the air pipe, the left side plate, the right side plate, the wire harness isolation plate and the top cover are all provided with a plurality of through holes; the cooling air inlet, the air pipe at the left side of the battery module block, the through hole at the top of the air pipe at the left side of the battery module block, the through hole of the left side plate, the second gap, the through hole of the wire harness isolation plate, the through hole of the top cover and the cooling air outlet are sequentially communicated into a second left air channel, and the cooling air inlet, the air pipe at the right side of the battery module block, the through hole at the top of the air pipe at the right side of the battery module block, the through hole of the right side plate, the second gap, the through hole of the wire harness isolation plate, the through hole of the top cover and the cooling air outlet are sequentially communicated into a second right air channel;
the cooling air inlet and the cooling air outlet are respectively and correspondingly provided with a sealing component; the sealing assembly comprises a sealing shell, sealing latch pieces are inserted into the sealing shell, and through holes are respectively formed in shell surfaces of the sealing shell corresponding to the front surface and the back surface of the sealing latch pieces and are respectively matched with the cooling air inlet and the cooling air outlet; the sealing latch piece at the cooling air outlet is also provided with a plurality of safety through holes, and a waterproof and breathable film is adhered to one side of the sealing latch piece at the cooling air outlet.
2. An air-cooled battery system according to claim 1, wherein: the cooling air outlets are a plurality of first air cooling outlets formed in the side wall of the box body, and a first fan is arranged at the first air cooling outlets.
3. An air-cooled battery system according to claim 1, wherein: the cooling air outlets are a plurality of second air cooling outlets formed in the top of the box body, and second fans are arranged at the second air cooling outlets.
4. An air-cooled battery system according to claim 1, wherein: and heat insulation layers are respectively arranged between the front end plate and the rear end plate and between the front end plate and the battery cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710836803.4A CN107634163B (en) | 2017-09-17 | 2017-09-17 | Air-cooled battery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710836803.4A CN107634163B (en) | 2017-09-17 | 2017-09-17 | Air-cooled battery system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107634163A CN107634163A (en) | 2018-01-26 |
| CN107634163B true CN107634163B (en) | 2024-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710836803.4A Active CN107634163B (en) | 2017-09-17 | 2017-09-17 | Air-cooled battery system |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109830625B (en) * | 2019-01-22 | 2021-10-26 | 重庆交通大学 | Cylindrical battery thermal management system |
| CN110034353A (en) * | 2019-03-26 | 2019-07-19 | 开沃新能源汽车集团有限公司 | A kind of elastic soft harness isolation plate-type air-cooled mould group |
| CN112382803B (en) * | 2020-11-11 | 2022-05-31 | 合肥华宇智航动力能源有限公司 | Power battery pack system |
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| CN107634163A (en) | 2018-01-26 |
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