CN210200909U - Efficient air-cooled battery system - Google Patents
Efficient air-cooled battery system Download PDFInfo
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- CN210200909U CN210200909U CN201920558824.9U CN201920558824U CN210200909U CN 210200909 U CN210200909 U CN 210200909U CN 201920558824 U CN201920558824 U CN 201920558824U CN 210200909 U CN210200909 U CN 210200909U
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- 230000017525 heat dissipation Effects 0.000 claims abstract description 68
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 20
- 239000003292 glue Substances 0.000 claims abstract description 14
- 239000012790 adhesive layer Substances 0.000 claims abstract description 13
- 230000007704 transition Effects 0.000 claims description 19
- 238000001816 cooling Methods 0.000 claims description 18
- 230000004888 barrier function Effects 0.000 claims description 16
- 230000005611 electricity Effects 0.000 claims description 4
- 230000009467 reduction Effects 0.000 abstract description 3
- 238000005192 partition Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model relates to a high-efficiency air-cooled battery system, a heat pipe and a plurality of electric cores which are arranged side by side are arranged in a lower box body from bottom to top, an upper box cover is arranged at the top of the lower box body in a matching way, a heat dissipation air duct is arranged at the bottom of the lower box body in a matching way, and a heat dissipation fan is arranged in the heat dissipation air duct in a matching way; a groove is formed in the bottom of the inner side of the lower box body, a first heat conduction structure adhesive layer is arranged in the groove, and the first heat conduction structure adhesive layer is matched with the heat pipe; be equipped with the heat conduction aluminum sheet between adjacent electric core, be equipped with second heat conduction structure glue film between arbitrary electric core and the heat conduction aluminum sheet that corresponds, the bottom and the heat-conducting plate of arbitrary heat conduction aluminum sheet are connected, and the heat-conducting plate is located on the heat pipe. The utility model discloses the flow direction of well heat pipe and wind channel is unanimous, can effectively utilize air-cooled heat-sinking capability, and the high characteristics of make full use of heat pipe axial thermal conductivity are with the region that the higher regional heat of temperature direction temperature is low, reduce the temperature difference around the runner, make the temperature field of bottom half more even to the temperature rise and the difference in temperature between electric core of at utmost reduction electric core.
Description
Technical Field
The present invention relates to a method or apparatus for directly converting chemical energy into electrical energy, such as in the field of battery pack technology, and more particularly to a high efficiency air cooled battery system.
Background
The battery PACK is mainly formed by processing and assembling a lithium battery PACK, is one type of combined battery, and is formed by combining and processing parts such as a battery core, a battery protection plate, a battery connecting sheet, label paper and the like through a battery PACK process.
In the process of combining the battery pack, the problems of mechanical strength, thermal management, BMS matching and the like of the system need to be considered, and the main technology is embodied in overall structure design, welding and processing process control, protection level, an active thermal management system and the like. In the using process, the temperature in the battery pack has great influence on the performance, the service life and the reliability of the battery electric core, so that the control of the temperature in the battery pack in a reasonable range is particularly important. At present, the battery pack at home mostly adopts air cooling heat dissipation, has a simple structure and lower cost, and better meets the conventional requirements of customers. However, in the prior art, when the battery pack adopts an air-cooling heat dissipation way, the disadvantages of insufficient heat dissipation capacity, high temperature rise and large temperature difference obviously exist, so that a user has to select other heat dissipation ways with higher cost to replace or assist air cooling to dissipate heat, and meanwhile, the weight and the structural complexity of the battery pack are increased.
SUMMERY OF THE UTILITY MODEL
The utility model provides an among the prior art, when the battery package adopted the radiating way of forced air cooling, obviously there was not enough, the temperature rise is higher, the great shortcoming of the difference in temperature of heat-sinking capability, this leads to the user to have to choose for use the higher heat dissipation way of other costs to replace or supplementary forced air cooling to spill the heat, has also increased the weight of battery package and the problem of structure complexity simultaneously, provides a high-efficient forced air cooling battery system who optimizes the structure.
The technical scheme adopted by the utility model is that the high-efficiency air-cooled battery system comprises a lower box body, wherein a heat pipe and a plurality of electric cores which are arranged side by side are arranged in the lower box body from bottom to top, the top of the lower box body is provided with an upper box cover in a matching way, the bottom of the lower box body is provided with a heat dissipation air duct in a matching way, and the heat dissipation air duct is provided with a heat dissipation fan in a matching way; a groove is formed in the bottom of the inner side of the lower box body, a first heat conduction structure adhesive layer is arranged in the groove, and the first heat conduction structure adhesive layer is matched with the heat pipe; it is adjacent be equipped with the heat conduction aluminum sheet between the electricity core, be equipped with second heat conduction structure glue film between arbitrary electricity core and the heat conduction aluminum sheet that corresponds, the bottom and the heat-conducting plate of arbitrary heat conduction aluminum sheet are connected, the heat-conducting plate is located on the heat pipe.
Preferably, the heat pipe comprises a plurality of input pipes arranged in parallel, the tail end of any input pipe is connected with an output pipe parallel to the input pipe through a transition pipe, and any output pipe is matched with a corresponding battery cell.
Preferably, the arrangement density of the plurality of input pipes arranged in parallel is greater than that of the output pipes.
Preferably, the heat dissipation air duct comprises a main air inlet channel arranged corresponding to the plurality of parallel input pipes and the plurality of parallel transition pipes, and a main air outlet channel is arranged at the tail end of the main air inlet channel and matched with the output pipe; a plurality of barriers are arranged in the radiating air duct along the radiating direction, any sub air inlet channel on two sides of each barrier corresponds to the input pipe and the transition pipe, and any sub air outlet channel on two sides of each barrier corresponds to the output pipe.
Preferably, the main air inlet channel is a trumpet-shaped channel; the air outlet caliber of the main air outlet channel is larger than or equal to the air inlet caliber of the main air outlet channel.
Preferably, the heat pipe is including 2 main input tubes that run through lower box bottom both ends, 2 main input tube both sides are equipped with a plurality of sub-input tubes side by side, and the input of main input tube and sub-input tube flushes, the length of a plurality of sub-input tubes is reduced to both sides by main input tube gradually, arbitrary the end of sub-input tube is connected with the output tube towards the lower box side that corresponds.
Preferably, the sub input pipes and the corresponding output pipes are arranged vertically.
Preferably, the heat dissipation air duct comprises an air inlet channel arranged corresponding to the input ends of the main input pipe and the sub input pipe, a first guide plate is arranged at the bottom of the lower box body on the opposite side of the air inlet channel, and second guide plates are respectively arranged on two sides of the tail end of the air inlet channel; and a plurality of barriers are arranged on two sides of the heat dissipation air duct facing the bottom of the lower box body, and air outlet channels on two sides of each barrier are arranged corresponding to the output pipes.
Preferably, the sum of the air outlet calibers of all the air outlet channels is greater than or equal to the air inlet calibers of the air outlet channels.
The utility model provides a high-efficient air-cooled battery system of optimized structure, through set up the heat pipe and a plurality of electric cores that set up side by side from bottom to top in the space in box and last case lid down, the bottom half cooperation heat pipe sets up the heat dissipation wind channel under to heat dissipation wind channel cooperation cooling fan, and accomplish the series connection of heat transfer route with first heat conduction structure glue film and second heat conduction structure glue film, make heat dissipation work can be accomplished jointly to heat dissipation wind channel and heat pipe.
The utility model discloses in, the flow direction in heat pipe and wind channel is unanimous, can effectively utilize air-cooled heat-sinking capability, and the high characteristics of make full use of heat pipe axial thermal conductivity are with the region that the higher regional heat of temperature direction temperature is low, reduce the temperature difference around the runner, make the temperature field of bottom half more even to the temperature rise of at utmost reduction electric core and the difference in temperature between electric core.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the structure of the explosion diagram of the present invention;
fig. 3 is a schematic structural view of the middle-lower box body of the present invention cooperating with the battery cell, the heat pipe and the air duct;
fig. 4 is a schematic top view structure diagram of the middle and lower box bodies, the battery cell and the heat pipe of the present invention;
FIG. 5 is a schematic structural view of the middle and lower case of the present invention;
FIG. 6 is a schematic view of the structure of the present invention in which the heat-conducting aluminum sheet is engaged with the heat-conducting plate;
fig. 7 is a schematic view of a heat pipe arrangement structure according to embodiment 1 of the present invention;
fig. 8 is a schematic view of an air duct arrangement structure according to embodiment 1 of the present invention;
fig. 9 is a schematic view of a heat pipe arrangement structure according to embodiment 2 of the present invention;
fig. 10 is a schematic view of an air duct arrangement structure according to embodiment 2 of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following examples, but the scope of the present invention is not limited thereto.
The utility model relates to a high-efficient forced air cooling's battery package, including lower box 1, be equipped with heat pipe 2 and a plurality of electric core 3 that set up side by side in the lower box 1 from bottom to top, the cooperation of lower box 1 top is equipped with upper case lid 4, the cooperation of lower box 1 bottom the heat pipe 2 is equipped with heat dissipation wind channel 5, heat dissipation wind channel 5 cooperation is equipped with cooling fan 6; a groove 7 is formed in the bottom of the inner side of the lower box body 1, a first heat conduction structural adhesive layer is arranged in the groove 7, and the first heat conduction structural adhesive layer is matched with the heat pipe 2; it is adjacent be equipped with heat conduction aluminum sheet 8 between electric core 3, be equipped with second heat conduction structure glue film between arbitrary electric core 3 and the heat conduction aluminum sheet 8 that corresponds, arbitrary heat conduction aluminum sheet 8's bottom is connected with heat-conducting plate 9, heat-conducting plate 9 is located on heat pipe 2.
In the utility model, the battery pack comprises a plurality of parallel battery cells 3 and a box body arranged outside the battery cells 3, and the box body is mainly arranged into a lower box body 1 and an upper box cover 4 arranged on the lower box body; the battery pack is matched with the battery core 3 and the box body to be provided with a heat dissipation mechanism.
The utility model discloses in, heat dissipation mechanism is mainly including setting up heat pipe 2 in 3 bottoms of electric core, under the general condition, heat pipe 2 with the cooperation of liquid cooling unit, be used for the leading-in of coolant liquid, simultaneously, heat dissipation wind channel 5 has been laid with the cooperation of heat pipe 2 to the bottom of lower box 1, through the air-blast of cooling fan 6, with heat from the box outside cooperation heat pipe 2 toward carrying outward.
The utility model discloses in, the big direction of arranging of heat pipe 2 and heat dissipation wind channel 5 is unanimous, effectively utilize air-cooled heat-sinking capability-the flow area of 5 import departments in wind channel is little, air flow rate is the biggest, the heat-sinking capability is strongest, the temperature is minimum, and 5 latter half in wind channel, because the flow resistance of flow area grow in addition wind channel 5, air flow rate descends, the heat transfer capacity of here is relatively poor, the temperature is higher-so the structure can make full use of 2 characteristics that the axial thermal conductivity is high of heat pipe, the region that the heat direction temperature with the higher region of temperature is low, reduce the temperature difference around the runner, the temperature field of box 1 bottom is.
The utility model discloses in, in order to guarantee electric core 3 normal work, not take place the thermal runaway, so cooperation heat pipe 2's the heat dissipation direction of laying, the heat dissipation wind channel 5's of the 6 air-blasts of cooling fan heat dissipation direction, heat pipe 2 and heat dissipation wind channel 5's the heat dissipation direction of arranging is perpendicular with electric core 3's the direction of arranging.
The utility model discloses in, set up first heat conduction structure glue film between heat pipe 2 and lower box 1, in order to guarantee the convenience and the suitability that set up, the inboard bottom of box 1 sets up the groove 7 that is used for laying first heat conduction structure glue film down.
The utility model discloses in, set up heat conduction aluminum sheet 8 between adjacent electric core 3, through the heat conduction aluminum sheet 8 and the cooperation of heat pipe 2 of interlude between electric core 3, heat conduction aluminum sheet 8 with heat direction heat-conducting plate 9, heat-conducting plate 9 dispels the heat with heat transfer to heat pipe 2 on the one hand, with second heat conduction structure glue film, heat conduction aluminum sheet 8 and 3 butt joints of electric core on the one hand, increase overall structure's integrality, increase electric core 3's heat transfer area, thereby the temperature rise of at utmost reduction electric core 3 and the difference in temperature between electric core 3.
The utility model discloses in, the cooperation setting about heat pipe 2 and radiating air duct 5 includes 2 kinds of implementation schemes at least, nevertheless the utility model discloses a scope of protection is not limited to this.
Example 1
The heat pipe 2 comprises a plurality of input pipes 10 arranged in parallel, the tail end of any input pipe 10 is connected with an output pipe 12 parallel to the input pipe 10 through a transition pipe 11, and any output pipe 12 is matched with the corresponding battery cell 3.
The arrangement density of the plurality of input pipes 10 arranged in parallel is greater than that of the output pipes 12.
The heat dissipation air duct 5 comprises a main air inlet channel 13 which is arranged corresponding to the plurality of parallel input pipes 10 and the plurality of parallel transition pipes 11, and a main air outlet channel 14 is arranged at the tail end of the main air inlet channel 13 and matched with the output pipe 12; a plurality of barriers 15 are arranged in the heat dissipation air duct 5 along the heat dissipation direction, sub air inlet channels on two sides of any barrier 15 are arranged corresponding to the input pipe 10 and the transition pipe 11, and sub air outlet channels on two sides of any barrier 15 are arranged corresponding to the output pipe 12.
The main air inlet channel 13 is a horn-shaped channel; the air outlet aperture of the main air outlet channel 14 is larger than or equal to the air inlet aperture of the main air outlet channel 14.
In this embodiment, the heat pipe 2 is integrally shaped such that the inlet end and the outlet end are oppositely arranged, i.e., the heat is dissipated linearly in the integral heat dissipation path; the heat dissipation air duct 5 corresponds to it.
In this embodiment, in order to reduce the setting cost, generally, the input pipe 10 at the inlet end is set to have a high density, that is, the cooling liquid is introduced simultaneously, and the arrangement direction of the electric cores 3 is perpendicular to the input pipe 10, so as to ensure that the heat of all the electric cores 3 can be taken away, the transition pipe 11 is adopted to disperse the tail end of the input pipe 10, the output pipe 12 is connected with the transition pipe 11, and all the output pipes 12 correspond to all the electric cores 3, so that the heat pipe 2 passes through the bottoms of all the electric cores 3.
In this embodiment, heat dissipation wind channel 5 corresponds the setting with heat pipe 2, and main inlet duct 13 corresponds with input tube 10 and transition pipe 11 is whole, and main air-out passageway 14 corresponds with output tube 12 is whole promptly, and of course, transition pipe 11 is as the transition piece, and it is all in to include transition pipe 11 in main inlet duct 13 or the corresponding relation of main air-out passageway 14 the utility model discloses an in the protection scope.
In this embodiment, in order to ensure the overall heat dissipation effect, the interior of the heat dissipation air duct 5 is divided into a plurality of sub-channels by a plurality of partitions 15 along the heat dissipation direction, specifically, the sub-air inlet channel corresponds to the overall input pipe 10 and the transition pipe 11, and the sub-air outlet channel corresponds to the output pipe 12.
In this embodiment, the main air intake duct 13 is a flared duct as a whole due to the presence of the transition duct 11.
In this embodiment, also due to the existence of the transition pipe 11, in order to ensure complete heat dissipation of the middle shaft portion, the central 2 input pipes 10 may directly penetrate through the bottom of the lower box 1, such as the central 2 input pipes 10 shown in fig. 7, and in fact, the input pipes 10, the transition pipe 11 and the output pipe 12 are arranged in a straight line.
In this embodiment, in order to ensure smooth heat dissipation, the aperture of the air outlet of the main air outlet channel 14 is greater than or equal to the aperture of the air inlet of the main air outlet channel 14.
Example 2
The heat pipe 2 comprises 2 main input pipes 16 penetrating through two ends of the bottom of the lower box body 1, a plurality of sub input pipes 17 are arranged on two sides of each main input pipe 16 in parallel, the input ends of the main input pipes 16 and the sub input pipes 17 are flush, the lengths of the sub input pipes 17 are gradually reduced from the main input pipes 16 to two sides, and an output pipe 18 is connected to the tail end of any sub input pipe 17 towards the corresponding side part of the lower box body 1.
The sub-input pipes 17 and the corresponding output pipes 18 are arranged vertically.
The heat dissipation air duct 5 comprises an air inlet channel 19 which is arranged corresponding to the input ends of the main input pipe 16 and the sub input pipe 17, a first guide plate 20 is arranged at the bottom of the lower box body 1 at the opposite side of the air inlet channel 19, and second guide plates 21 are respectively arranged at two sides of the tail end of the air inlet channel 19; a plurality of barriers 15 are arranged on two sides of the interior of the heat dissipation air duct 5 facing the bottom of the lower box body 1, and air outlet channels 22 on two sides of any one of the barriers 15 are arranged corresponding to the output pipes 18.
The sum of the air outlet calibers of all the air outlet channels 22 is more than or equal to the air inlet calibers of the air outlet channels 22.
In the embodiment, the heat pipe 2 is integrally shaped such that the inlet end and the outlet end are not arranged oppositely, but output is carried out through two sides of the inlet end, the whole heat dissipation path is broken line heat dissipation, and the heat dissipation air duct 5 corresponds to the heat dissipation air duct; in this kind of structure, the air outlet bore is bigger than embodiment 1, and the heat dissipation route is longer, is applicable to the battery package product that the heat dissipation demand is bigger.
In this embodiment, 2 main input pipes 16 penetrate the bottom of the lower box body 1, that is, the whole body conveys heat backwards and outwards, and the sub input pipe 17 is connected with the output pipe 18, so that the length of the sub input pipe is gradually reduced from the main input pipe 16 to two sides; in order to reduce the setting cost, under general conditions, the input of main input tube 16 and sub-input tube 17 flushes and sets up density big, coolant liquid lets in simultaneously promptly, and electric core 3 arrange the direction and main input tube 16 and sub-input tube 17 perpendicular, can both be taken away in order to guarantee the heat of all electric cores 3, so set up output tube 18 at the end of every sub-output tube 17 that length differs, output tube 18 stretches out towards the box lateral part that corresponds the side, correspond with the direction that sets up of electric core 3, make heat pipe 2 pass through all electric cores 3 bottoms.
In this embodiment, in order to facilitate the arrangement of the heat pipe 2 in the form of a standard component, the input pipe 17 and the corresponding output pipe 18 are arranged vertically.
In this embodiment, the heat dissipation air duct 5 and the heat pipe 2 are disposed correspondingly, that is, the air inlet channel 19 corresponds to the input ends of the main input pipe 16 and the sub input pipe 17, and each air outlet channel 22 corresponds to each output pipe 18 as a whole.
In this embodiment, since the output pipes 18 are both disposed toward two sides of the box, the heat dissipation air duct 5 is also L-shaped to output air, so that the first air deflectors 20 on the opposite sides of the air inlet channel 19 and the second air deflectors 21 on two sides of the end of the air inlet channel 19 are used to wind and guide air, that is, the air for heat dissipation is dissipated from two sides of the box.
In this embodiment, in order to ensure the overall heat dissipation effect, a plurality of partitions 15 are disposed in the heat dissipation air duct 5 along the heat dissipation direction, and the air outlet channels 22 on two sides of any partition 15 are disposed corresponding to the output pipes 18.
In this embodiment, in order to ensure smooth heat dissipation, the aperture of the air outlet channel 22 is greater than or equal to the aperture of the air inlet of the air outlet channel 22.
The utility model discloses an adopt high-efficient forced air cooling battery system's heat dissipation control method include following step:
step 1: the cell 3 to the second heat conduction structure adhesive layer is used as a first heat transfer path, the second heat conduction structure adhesive layer is used as a second heat transfer path through the heat conduction aluminum sheet 8 to the heat conduction plate 9, the heat conduction plate 9 to the heat pipe 2 is used as a third heat transfer path, the heat pipe 2 to the first heat conduction structure adhesive layer is used as a fourth heat transfer path, the first heat conduction structure adhesive layer to the lower box body 1 is used as a fifth heat transfer path, and the heat transfer amounts of the first heat transfer path, the second heat transfer path, the third heat transfer path, the fourth heat transfer path and the fifth heat transfer path are q respectively1、q2、q3、q4And q is5；
Step 2: constructing an equivalent thermal resistance heat transfer model to obtain the equivalent thermal resistance model of the heat conducting plate 9
Equivalent thermal resistance model of heat pipe 2
Equivalent thermal resistance model of second thermal conductive structure glue layer
Equivalent thermal resistance model of first heat conduction structure glue layer
Equivalent thermal resistance model of bottom plate of lower box 1
Wherein, deltaplate、λpalteAnd SplateThickness, thermal conductivity and thermal conductivity area, delta, of the thermal conductive plate 9, respectivelypipe、λpipeAnd SpipeThickness, thermal conductivity and heat transfer area, delta, of the heat pipe 2glue1、λglue1And Sglue1The thickness, thermal conductivity and heat transfer area, delta, of the first thermal conductive structure glue layerglue2、λglue2And Sglue2The thickness of the second heat-conducting structural adhesive layer,Thermal conductivity and heat transfer area, deltabox、λboxAnd SboxThe thickness, the thermal conductivity and the heat transfer area of the bottom plate of the lower box body 1 are respectively;
and step 3: let the protection temperature of the battery cell 3 be T1The temperature of the outer surface of the lower box body 1 is T when the thermal balance is achieved2And, the heat transfer quantity of the heat transfer path of the equivalent thermal resistance model from the protection temperature to the thermal equilibrium temperature of the battery cell 3
And 4, step 4: the heat emitted from the heat dissipation air duct 5 of the lower box body 1 is enabled to pass
Wherein h is the convective heat transfer coefficient of the air duct 5, S1Is the total area S of the bottom surface of the lower box body 11L x w, l and w are the length and width of the bottom area of the lower case 1, respectively, S2Is a cross-sectional area, S, of the partition 15 for dividing the heat-dissipating air duct 52A is the thickness of the partition 15, n is the number of the partitions 15, P is the cross-sectional perimeter of each partition 15, P is 2 × (a + w), Δ T is Tf-T2，TfThe temperature of cooling air injected through the cooling air duct 5, and H is the height of the partition 15;
and 5: by setting Rplate、Rpipe、Rglue1、Rglue2And RboxAnd knowing the cell 3 protection temperature T1And the cooling air temperature TfAnd electric core heating power q0According to conservation of energy q7＝q6＝q5＝q4＝q3＝q2＝q1＝q0Simultaneous system of equations satisfying mH<2, calculating the number n, the thickness a and the height H of the barriers 15 in the air duct 5;
step 6: and an air duct 5 and a corresponding partition 15 are arranged to complete heat dissipation control.
The utility model discloses in, first heat transfer route, second heat transfer route, third heat transfer route, fourth heat transfer route and fifth heat transfer route establish ties in order.
The utility model discloses in, equivalent thermal resistance heat transfer model in step 2 does not relate to heat conduction aluminum sheet 8, and this is because heat conduction aluminum sheet 8 is very thin, so the heat conductivity is very big, can ignore under its thermal resistance general condition.
The utility model discloses in, the height of jube 15 and interval isoparametric should not be too big, generally require mH <2 to prevent that 5 windage of wind channel are too big.
The utility model discloses in, can further go on further injecing through the expansion angle size of 5 import departments in restriction wind channel, to setting up of jube 15 in wind channel 5, guarantee the radiating efficiency.
The utility model discloses a set up heat pipe 2 and a plurality of electric cores 3 that set up side by side from bottom to top in the space in box 1 and last case lid 4 down, 1 bottom cooperation heat pipe 2 of box sets up heat dissipation wind channel 5 down to 5 cooperation cooling fan 6 in heat dissipation wind channel, and accomplish the series connection of heat transfer route with first heat conduction structure glue film and second heat conduction structure glue film, make heat dissipation work can be accomplished jointly to heat dissipation wind channel 5 and heat pipe 2.
The utility model discloses in, heat pipe 2 and 5 air ducts's flow direction is unanimous, can effectively utilize the air-cooled heat-sinking capability, and the high characteristics of 2 axial thermal conductivities of make full use of heat pipe, with the region that the higher regional heat of temperature direction temperature is low, reduce the temperature difference around the runner, make the temperature field of bottom half more even to the at utmost reduces the temperature rise of electric core 3 and the difference in temperature between electric core 3.
Claims (9)
1. The utility model provides a high-efficient forced air cooling battery system, includes box down, be equipped with the heat pipe and a plurality of electric cores that set up side by side in the box down from bottom to top, the cooperation of box top is equipped with case lid, its characterized in that down: the bottom of the lower box body is provided with a heat dissipation air duct in a matching way with the heat pipe, and the heat dissipation air duct is provided with a heat dissipation fan in a matching way; a groove is formed in the bottom of the inner side of the lower box body, a first heat conduction structure adhesive layer is arranged in the groove, and the first heat conduction structure adhesive layer is matched with the heat pipe; it is adjacent be equipped with the heat conduction aluminum sheet between the electricity core, be equipped with second heat conduction structure glue film between arbitrary electricity core and the heat conduction aluminum sheet that corresponds, the bottom and the heat-conducting plate of arbitrary heat conduction aluminum sheet are connected, the heat-conducting plate is located on the heat pipe.
2. A high efficiency air cooled battery system as set forth in claim 1, wherein: the heat pipe comprises a plurality of input pipes arranged in parallel, the tail end of any input pipe is connected with an output pipe parallel to the input pipes through a transition pipe, and any output pipe is matched with a corresponding battery cell.
3. A high efficiency air cooled battery system as set forth in claim 2 wherein: the arrangement density of the plurality of input pipes arranged in parallel is greater than that of the output pipes.
4. A high efficiency air cooled battery system as set forth in claim 2 wherein: the heat dissipation air channel comprises a main air inlet channel arranged corresponding to the plurality of parallel input pipes and transition pipes, and the tail end of the main air inlet channel is matched with the output pipe to be provided with a main air outlet channel; a plurality of barriers are arranged in the radiating air duct along the radiating direction, any sub air inlet channel on two sides of each barrier corresponds to the input pipe and the transition pipe, and any sub air outlet channel on two sides of each barrier corresponds to the output pipe.
5. The high efficiency air cooled battery system of claim 4, wherein: the main air inlet channel is a horn-shaped channel; the air outlet caliber of the main air outlet channel is larger than or equal to the air inlet caliber of the main air outlet channel.
6. A high efficiency air cooled battery system as set forth in claim 1, wherein: the heat pipe is including 2 main input tubes that run through lower box bottom both ends, 2 main input tube both sides are equipped with a plurality of sub-input tubes side by side, and the input of main input tube and sub-input tube flushes, the length of a plurality of sub-input tubes is reduced to both sides by main input tube gradually, arbitrary the end of sub-input tube is connected with the output tube towards the lower box side portion that corresponds.
7. A high efficiency air cooled battery system as set forth in claim 6 wherein: the sub input pipes and the corresponding output pipes are vertically arranged.
8. A high efficiency air cooled battery system as set forth in claim 6 wherein: the heat dissipation air channel comprises an air inlet channel arranged corresponding to the input ends of the main input tube and the sub input tube, a first guide plate is arranged at the bottom of the lower box body on the opposite side of the air inlet channel, and second guide plates are respectively arranged on two sides of the tail end of the air inlet channel; and a plurality of barriers are arranged on two sides of the heat dissipation air duct facing the bottom of the lower box body, and air outlet channels on two sides of each barrier are arranged corresponding to the output pipes.
9. A high efficiency air cooled battery system as set forth in claim 8, wherein: the sum of the air outlet calibers of all the air outlet channels is more than or equal to the air inlet calibers of the air outlet channels.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110010996A (en) * | 2019-04-23 | 2019-07-12 | 杭州捷能科技有限公司 | A kind of high-efficiency air cooling battery system and its cooling control method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110010996A (en) * | 2019-04-23 | 2019-07-12 | 杭州捷能科技有限公司 | A kind of high-efficiency air cooling battery system and its cooling control method |
| CN110010996B (en) * | 2019-04-23 | 2024-03-26 | 杭州捷能科技有限公司 | Efficient air-cooled battery system and heat dissipation control method thereof |
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