CN204230383U - A kind of electrokinetic cell system - Google Patents
A kind of electrokinetic cell system Download PDFInfo
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- CN204230383U CN204230383U CN201420648125.0U CN201420648125U CN204230383U CN 204230383 U CN204230383 U CN 204230383U CN 201420648125 U CN201420648125 U CN 201420648125U CN 204230383 U CN204230383 U CN 204230383U
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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
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- Y02E60/10—Energy storage using batteries
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Abstract
Not fine for overcoming existing pectination radiator heat-dissipation effect in prior art, the problem that volume is larger, the utility model embodiment provides a kind of electrokinetic cell system, and comprise battery modules and heat radiation module, battery modules comprises framework and is installed on the some cells in framework; Framework comprise be positioned at battery modules left surface, right flank two pieces of side frames and be installed on two pieces of end frames of battery modules front end face and rear end face; Side frame is spliced by some concatenation units; Concatenation unit is provided with buckle male end, buckle female end; Buckle male end on adjacent concatenation unit is connected with the mutual buckle of buckle female end; Concatenation unit is also provided with latch and slot; Latch on adjacent concatenation unit and slot cooperatively interact grafting; Heat radiation module comprises Gai Heyou air channel, left air channel lid, and Gai Heyou air channel, left air channel lid is arranged on outside side frame, is combined to form left air path and right air path with side frame.The electrokinetic cell system that the utility model provides, good heat dissipation effect, volume easily extensible.
Description
Technical field
The utility model relates to a kind of power battery pack field, the radiator structure field especially in power battery pack.
Background technology
As everyone knows, dispelled the heat by pectination radiator in a lot of field, and this pectination radiator comprises the fin of some distributions in pectination, and the fin on it can strengthen the contact area with coolant.
But in electrokinetic cell system field, the effect of existing pectination radiator also comes with some shortcomings, time in this pectination radiator mounting battery modules, contact with the metal shell of cell by means of only insulating barrier between the two.Meanwhile, this pectination radiator and battery system rack inner chamber form open air channel, and existing pectination heat spreader structures intensity is lower, and pressurized is yielding, can not bear gravity, punching press etc. as load bearing component; Conventional hollow radiator, the thickness of fin is general thicker, and more than 5mm, the air channel width formed between fin is at more than 10mm, and air channel quantity is also restricted, and when identical heat-delivery surface, volume, the weight of this hot device are all relatively large.And in energy storage and electric automobiles, the heavier mass of the battery modules on it own, pectination radiator cannot bear gravity and the impulsive force of battery modules as supporting body, therefore can not effectively be applied in electrokinetic cell system field.Meanwhile, its air channel is open, and the effective rate of utilization of coolant is lower, and radiating effect is not fine.
Summary of the invention
Not fine for overcoming existing pectination radiator heat-dissipation effect in prior art, volume is larger, meanwhile, cannot bear the gravity of battery modules and the problem of impulsive force as the supporting body on electrokinetic cell system, the utility model embodiment provides a kind of electrokinetic cell system.
The utility model embodiment provides a kind of electrokinetic cell system, comprises battery modules and heat radiation module, and wherein, described battery modules comprises framework and is installed on the some cells in described framework; Described framework comprise be positioned at described battery modules left surface, right flank two pieces of side frames and be installed on two pieces of end frames of described battery modules front end face and rear end face; Described side frame is spliced by some concatenation units; Described concatenation unit is provided with buckle male end, buckle female end; Described buckle male end on adjacent described concatenation unit is connected with the mutual buckle of described buckle female end; Described concatenation unit is also provided with latch and slot; Described latch on adjacent described concatenation unit and described slot cooperatively interact grafting; Described heat radiation module also comprises Gai Heyou air channel, left air channel lid, and described left air channel lid and described right air channel lid are arranged on outside described side frame, are combined to form left air path and right air path with described side frame.
By the side frame that above-mentioned concatenation unit is put together, its module series connection amount of monomer is unrestricted, therefore can when not changing mould, not increasing structural member, the side frame of different size can be combined into, also, namely when not changing mould, not increasing structural member, different frameworks can be combined into.Further, cover by left air channel lid, right air channel the left air path and right air path that are formed with side frame in heat radiation module, can be good at effect battery modules being played to ventilation and heat.
Preferably, described battery modules comprise large, lower large, left surface, right flank, front end face and rear end face; Upper large of described battery modules and lower large is all provided with heating panel; Be called heating panel and lower heating panel.
Further, described heating panel comprises fin and cover plate, and described fin comprises egative film and is arranged in the some fins on described egative film in pectination; Described cover plate is fixedly connected with described fin, and the fin on described fin is between described egative film and described cover plate; Described egative film, between described fin and described cover plate, form air channel.
Adopt the above-mentioned heating panel that the utility model embodiment provides, when using it for electrokinetic cell system, during by this fin of mould molding, can further the thickness of fin be done little, increase the area of dissipation of fin, make heating panel inside in highdensity hollow-core construction, improve radiating efficiency, in limited volume, improve heat-delivery surface and the radiating effect of fin to greatest extent, improve the charge-discharge magnification of battery modules.Also the volume of heating panel is efficiently reduced.Meanwhile, owing to adding cover plate, therefore power can be distributed to each fin, effectively improve the structural strength of heating panel entirety.Be subject in the situations such as gravity, vibration, impact, can as a part for electrokinetic cell system shell, protection battery modules is not damaged.
Preferably, described fin and described cover plate fixing by welding, heat-conducting glue bonding or machinery in one or more combination be fixed connection.Effectively can ensure the reliability be fixedly connected with of fin and cover plate.
Preferably, described cover plate comprises inner surface and outer surface, described cover inner surface is formed with some grooves mated with fin; The free end of described fin inserts in the groove on described cover plate.Adopt the fixed form that above-mentioned groove is connected with fin, can be strengthened it further and be fixedly connected with effect.
Preferably, the egative film left and right sides on described fin upwards bends, in formation downside, both sides; The left and right sides of described cover plate bends downwards, forms upper side in both sides; The downside of the described fin left and right sides and the downside of the described cover plate left and right sides are connected, and form hollow form structure, the fin on described fin is placed in described hollow form structure.
Preferably, the egative film back side of described fin is longitudinally provided with some heat pipes.By above-mentioned heat pipe, the consistency of the enterprising air port of battery modules and air outlet temperature can be realized.
Preferably, the egative film back side of described fin is provided with some semiconductor heating and cooling chips.Adopt above-mentioned semiconductor heating and cooling chip, can the temperature of auxiliary adjustment cell under extreme conditions, such as realize the heating to battery pack under cryogenic conditions, under limit hot conditions, add the function of forced air cooling.
Preferably, the egative film back side of described heating panel scribbles insulating protective coating.
Preferably, the thickness of described insulating protective coating is 0.05-1mm.
Preferably, described heat radiation module also comprises fan protection lid, and described fan protection lid is installed on the front end face of described battery modules, and described fan protection covers and is provided with cooling fan.
Preferably, above-mentioned end frame and side frame surround square shape; Described cell is laterally placed between two pieces of described side frames, and the electrode terminal on it stretches in described side frame.
Preferably, described cell is wrapped with insulating protective film; Thermally conductive insulating layer is equipped with between described upper heating panel and upper large of described battery modules and between described lower heating panel and lower large of described battery modules.
Preferably, described end frame is also provided with described buckle male end, described buckle female end, described latch and described slot;
Buckle male end on described end frame is connected with the buckle female end buckle on described concatenation unit; Buckle female end on described end frame is connected with the buckle male end buckle on described concatenation unit; Latch on described end frame and the slot grafting on described concatenation unit; Slot on described end frame and the latch grafting on described concatenation unit.
Preferably, described concatenation unit is centrosymmetric; Described end frame is centrosymmetric.Above-mentioned side frame and end frame all adopt centrosymmetric structure, and body junction the number of components can be reduced to minimum by this structure, has very strong interchangeability; Side frame and end frame, each fitting surface in side frame between each concatenation unit all there is a pair fixing structure for buckle (buckle male end and buckle female end) and a pair alignment pin anti-rotation (and above-mentioned latch and slot) structure, formation four point positioning is fixed, and avoids before band tightens up because carrying, upset cause battery pack to fall apart.
Accompanying drawing explanation
Fig. 1 is the heating panel exploded isometric schematic diagram provided in the utility model embodiment.
Fig. 2 is the heating panel schematic perspective view provided in the utility model embodiment.
Fig. 3 is A place enlarged diagram in Fig. 1.
Fig. 4 is the heating panel front-view schematic diagram provided in the utility model embodiment.
Fig. 5 is B place enlarged diagram in Fig. 4.
Fig. 6 is the heating panel schematic diagram provided in the utility model embodiment.
Fig. 7 is the electrokinetic cell system schematic perspective view provided in the utility model embodiment.
Fig. 8 is the electrokinetic cell system schematic rear view provided in the utility model embodiment.
Fig. 9 is the electrokinetic cell system confined explosion schematic diagram provided in the utility model embodiment.
Figure 10 is the framework schematic perspective view provided in the utility model embodiment.
Figure 11 is the concatenation unit schematic perspective view provided in the utility model embodiment.
Figure 12 is the concatenation unit Central Symmetry schematic diagram provided in the utility model embodiment.
Figure 13 is the side plate schematic perspective view provided in the utility model embodiment.
Figure 14 is that the side plate provided in the utility model embodiment is centrosymmetric schematic diagram.
Wherein, 1, heating panel; 2, battery modules; 3, fan protection lid; 4, left air channel lid; 5, right air channel lid; 1a, upper heating panel; 1b, lower heating panel; 2a, the first electrode; 2b, the second electrode; 11, cover plate; 12, fin; 13, insulating protective coating; 20, cell; 111, top flat; 112, upper side; 120, egative film; 121, downside; 122, a breach is kept away; 12a, fin; 11a, groove; 12c, heat pipe; 12d, semiconductor heating and cooling chip; 31, fan; 41, left air inlet; 51, right air inlet; 2c, insulating protective film; 2d, thermally conductive insulating layer; 21, frame is held; 22, side frame; 220, concatenation unit; A, buckle male end; B, buckle female end; C, latch; D, slot; A1, catching groove; B1, fixture block.
Embodiment
The technical problem solved to make the utility model, technical scheme and beneficial effect are clearly understood, below in conjunction with drawings and Examples, are further elaborated to the utility model.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
For the ease of understanding the electrokinetic cell system that the utility model provides, first by reference to the accompanying drawings, detailed description made by the heating panel in the electrokinetic cell system provide the utility model.
embodiment 1
This example carries out specific explanations explanation for heating panel 1 disclosed in the utility model, as shown in Figure 1 and Figure 2, comprises fin 12 and cover plate 11; Described fin 12 comprises egative film 120 and is arranged in the some fin 12a on described egative film 120 in pectination;
Described cover plate 11 is fixedly connected with described fin 12, and the fin 12a on described fin 12 is between described egative film 120 and described cover plate 11; Described egative film 120, between described fin 12a and described cover plate 11, form air channel.
Coolant can flow through from this air channel, if coolant can carry out heat exchange with this heating panel 1.
About being fixedly connected with mode between cover plate 11 and fin 12, can various ways be had, such as, described fin 12 and described cover plate 11 can fixing by welding, heat-conducting glue bonding or machinery in one or more combination be fixed connection.Welding can be, but not limited to soldering, macromolecule diffusion welding (DW) etc.; Heat-conducting glue bonding can adopt the conducting adhesive material meeting the various brands that thermal conductivity, adhesion strength, ageing properties etc. require, such as heat conductive silica gel; Machinery fixed solution can be the schemes such as screw, rivet, interference fit.Three kinds of fixed solution can be used alone and also can combinationally use, to ensure the reliability be fixedly connected with of fin 12 and cover plate 11.
The thickness of fin 12a can accomplish 0.8 ~ 1.5mm, cavity width (or air channel width), namely the distance between fin 12a and fin 12a can be 2 ~ 4mm, fin 12a depth-width ratio can reach about 25, when windage meets the demands, improve the area of dissipation of fin 12a to greatest extent, make heating panel 1 inside in highdensity hollow-core construction, realize maximum radiating effect in limited space.
The overall dimension of general heating panel 1 is not particularly limited, and generally its thickness is approximately 30 ~ 60mm; The length of this heating panel 1 and width are then determined according to the size of battery modules 2.
Those skilled in the art are after understanding essence of the present invention, without the need to paying performing creative labour, namely by the profile of appropriate design heating panel 1 and inner fins 12a and duct dimension, in limited space, improve radiating efficiency to greatest extent, and make brace temperature sampling point temperature and battery actual temperature basically identical.
For strengthening its bonding strength further, as preferred embodiment, as shown in Figure 3-Figure 5, described cover plate 11 comprises inner surface and outer surface, and described cover plate 11 inner surface is formed with some groove 11a mated with fin 12a; The free end of described fin 12a inserts in the groove 11a on described cover plate 11.One end of fin 12a is connected with this egative film 120 one, and this end can be described as butt, and the other end relative with butt is then called free end.
Adopt the fixed form that above-mentioned groove 11a is connected with fin 12a, can be strengthened it further and be fixedly connected with effect, simultaneously, when this fin 12a inserts in this groove 11a, also preferred compositions uses heat-conducting glue bonding, this groove 11a is conducive to the adhesive force improving thermoconductive glue, improves the Cohesion reliability between cover plate 11 and fin 12a.
About the concrete shape of this fin 12 and cover plate 11, as preferred embodiment, as shown in Figure 1, Figure 2, Figure 4 shows, egative film 120 left and right sides on described fin 12 upwards bends, in formation downside, both sides 121; This downside 121 is parts of egative film 120, and whole fin 12 is one-body molded.It is a flat body that this egative film 120 can be understood as bottom, and upwards bends the downside 121 of stretching out from these tabular body both sides.
The left and right sides of described cover plate 11 bends downwards, forms upper side 112 in both sides; Its cover plate 11 is integrated part, its upper side 112 is also a part for cover plate 11, for misreading appears in anti-reader, as shown in Figure 1, Figure 2, the above-mentioned upper side 112 that this cover plate 11 can be understood as flat body and bends downwards from its body both sides, for making body on this body and egative film 120 to difference, claim the body on this cover plate 11 to be top flat 111, namely two above-mentioned upper sides 112 are positioned at top flat 111 both sides.
The downside 121 of described fin 12 left and right sides is connected with the downside 121 of described cover plate 11 left and right sides, and form hollow form structure, the fin 12a on described fin 12 is placed in described hollow form structure.
Meanwhile, shown in Fig. 1, Fig. 2,4 angles place on its fin 12 be also provided with for coordinate with battery modules 2 install keep away a breach 122.
As shown in Figure 6, for strengthening its radiating effect further, be preferably longitudinally provided with some heat pipe 12c at egative film 120 back side of described fin 12.Realize the consistency of the enterprising air port of battery modules 2 and air outlet temperature; Concrete, some heat pipe 12c, are set in parallel on egative film 120 back side of this fin 12 along left and right in figure to extension.
As shown in Figure 6, for strengthening its radiating effect further again, the temperature of auxiliary adjustment cell 20 under extreme conditions, such as realizes the heating to battery pack under cryogenic conditions, adds the function of forced air cooling under limit hot conditions.Some semiconductor heating and cooling chip 12d can also be provided with on egative film 120 back side of described fin 12.Above-mentioned semiconductor heating and cooling chip 12d, for shown in the public, preferably adopts the mode of positive array distribution to be distributed in egative film 120 back side of this fin 12.When battery modules 2 is used alone, above-mentioned semiconductor heating and cooling chip 12d can from cell 20 power taking, by BMS(battery management system) control the power of start and stop and refrigerating/heating; When cell 20 is applied in Iarge-scale system by connection in series-parallel, semiconductor heating and cooling chip 12d powers by BMS wire harness accessory power supply, controls the power of start and stop state and refrigerating/heating.
As further preferred embodiment, please refer to shown in Fig. 9, egative film 120 back side of described heating panel 1 scribbles insulating protective coating 13.Wherein, the thickness of described insulating protective coating 13 is 0.05-1mm.Wherein, above-mentioned insulating protective coating 13 can be following coating: ceramic frit layer, thermal conductive insulation glue sprayed coating (cold spraying or thermal spraying), thermal conductive insulation glue immerse; Because (if said egative film 120 comprises the downside 121 that its both sides, bottom surface are upwards bent to form in this example, then the back side also comprises the back side of the downside 121 upwards bent from its both sides, bottom surface at egative film 120 back side of fin 12.Also can so understand, the face that this egative film 120 is connected with fin 12a is inner surface, then relative with this inner surface on egative film 120 another side is outer surface, be also called the back side, ) may with cell 20 body contact, easily there is short circuit, the phenomenons such as electric leakage, therefore can at the back side of its egative film 120, one deck ceramic frit layer is formed by ceramic spraying sintering process, or by heat-conducting glue spraying (cold spraying or thermal spraying), thermal conductive insulation glue immerses technique, form one deck and there is high heat conductance, high strength is (wear-resisting, adhesive force, impact strength, ageing resistace is excellent) etc. the insulating protective coating 13 of excellent properties, ensure between heating panel 1 and cell 20 housing, there are insulation property enough reliably, reduce thermal resistance to greatest extent, improve radiating efficiency.Effectively avoid the risk of battery modules 2 electric leakage and heating panel 1 short circuit, improve the reliability of electrokinetic cell system.Preferably its thickness 0.2 ~ 1mm, thermal conductivity > 4w/mK, withstand voltage > AC5000V.
The above-mentioned heating panel 1 adopting this example to provide, when using it for electrokinetic cell system, during by this fin 12 of mould molding, can further the thickness of fin 12a be done little, increase the area of dissipation of fin 12, make heating panel 1 inside in highdensity hollow-core construction, improve radiating efficiency, in volume effectively, improve heat-delivery surface and the radiating effect of fin 12 to greatest extent, improve the charge-discharge magnification of battery modules 2.Also the volume of heating panel 1 is efficiently reduced.Meanwhile, owing to adding cover plate 11, therefore power can be distributed to each fin 12a, effectively improve the structural strength of heating panel 1 entirety.Be subject in the situations such as gravity, vibration, impact, can as a part for electrokinetic cell system shell, protection battery modules 2 is not damaged.
embodiment 2
The electrokinetic cell system provided the utility model is carried out specific explanations explanation by this example, and it comprises battery modules 2 and heat radiation module, wherein, and the described heating panel 1 described in described heat radiation module above-described embodiment 1.
Concrete, described battery modules 2 comprises framework and is installed on the some cells 20 in described framework; Described battery modules 2 comprise large, lower large, left surface, right flank, front end face and rear end face; Upper large of described battery modules 2 and lower large is all provided with described heating panel 1; Be called heating panel 1a and lower heating panel 1b; Described heat radiation module also comprises fan protection lid 3, and described fan protection lid 3 is installed on the front end face of described battery modules 2, and described fan protection lid 3 is provided with cooling fan 31.
In order to improve radiating efficiency, the material of this heating panel 1 is metal material, such as AL 6061, AL6063, Cu etc.
About above-mentioned cell 20, preferably adopt lithium ion battery, preferably adopt ferric phosphate lithium cell wherein further.
Communicates with above-mentioned upper heating panel 1a and lower heating panel 1b in said fans over cap 3, coolant can duct flows between the fin 12a in upper heating panel 1a and lower heating panel 1b.
Because battery modules 2 outside is wrapped up by the parts of each heat radiation module, therefore above-mentioned large, lower large, left surface, right flank, front end face and rear end face; Mark, but do not hinder those skilled in the art to the understanding of this battery modules 2.As shown in Figure 7, the one side that battery modules 2 it is provided with fan protection lid 3 is front end face, and the face oppositely corresponding with this front end face is rear end face, then the face along paper top is upper large, is lower large along basifacial of paper; Be left surface and right flank in the face of described front end face left and right sides.
Adopt above-mentioned upper heating panel 1a and lower heating panel 1b, the heat produced in cell 20 in battery modules 2 can be siphoned away, and in heating panel 1, drive air to form heat exchange by cooling fan 31, the most of heat produced in cell 20 is distributed, plays the effect of cooling.
As everyone knows, cell 20 is provided with electrode terminal, i.e. positive terminal and negative terminal, in the process that battery modules 2 works, also can give out a large amount of heat, the heat of this part also needs to distribute, therefore, also can form cooling air channel, i.e. left air channel and right air channel in the left and right side of battery modules 2, electrode terminal is placed in this left air channel or right air channel or left and right air channel; The position of electrode terminal is depended in the setting in left and right air channel.Some cells 20 are after series connection or parallel connection or mixed connection; as shown in Figure 7; finally draw one first electrode 2a and the second electrode 2b from its fan protection lid 3 side; wherein the first electrode 2a is positive pole; then the second electrode 2b is negative pole; otherwise the first electrode 2a is negative pole, then the second electrode 2b is positive pole.
As shown in Figure 8, namely the flow direction of coolant (in this example air or be commonly called as wind) need not specifically limit, according to the operating state of fan 31, can blow in battery modules 2, or by the rotation of fan 31, in battery modules 2, forming negative pressure, air inlet being set by being placed in battery modules 2 back side (i.e. rear end face), carry out heat exchange by coolant inspiration air channel, preferably adopt the mode of the latter to carry out heat exchange.Such as, cover 4 upper covers in its left air channel and left air inlet 41 is set, its right air channel lid 5 arranges right air inlet 51.The rear side of heating panel 1a, lower heating panel 1b arranges upper and lower air inlet thereon; As preferred embodiment, as shown in Figure 9, described cell 20 is wrapped with insulating protective film 2c; Thermally conductive insulating layer 2d is equipped with between described upper heating panel 1a and upper large of described battery modules 2 and between described lower heating panel 1b and lower large of described battery modules 2.
As shown in Figure 9; adopt above-mentioned preferred version; between the heating panel 1 and cell 20 of heat radiation module, add triple insulation system, namely insulating protective film 2c, the thermally conductive insulating layer 2d arranged between heating panel 1 and described battery modules 2 of cell 20 outer wrapping and egative film 120 back side of described heating panel 1 arrange insulating protective coating 13.Often heavy withstand voltage all at more than AC5000V.Farthest battery modules 2 is protected.
Concrete, as shown in Figure 10, described framework comprise be positioned at described battery modules 2 left surface, right flank two pieces of side frames 22 and be installed on two pieces of end frames 21 of described battery modules 2 front end face and rear end face; Above-mentioned end frame 21 and side frame 22 surround square shape; Described cell 20 is laterally placed between two pieces of described side frames 22, and the electrode terminal on it stretches in described side frame 22; As shown in Figure 7, described heat radiation module also comprises left air channel lid 4 and right air channel lid 5, and described left air channel lid 4 and described right air channel lid 5 are arranged on outside described side frame 22, are combined to form left air path and right air path with described side frame 22.
Concrete, as shown in Figure 10, Figure 11, described side frame 22 is spliced by some concatenation units 220; Described concatenation unit 220 is provided with buckle male end a, buckle female end b; Described buckle male end a on adjacent described concatenation unit 220 is connected with the mutual buckle of described buckle female end b; Described concatenation unit 220 is also provided with latch c and slot d; Described latch c on adjacent described concatenation unit 220 and described slot d cooperatively interacts grafting.This latch c and slot d mainly plays a part to locate anti-rotation.
By the side frame 22 that above-mentioned concatenation unit 220 is put together, its module series connection amount of monomer is unrestricted, therefore can when not changing mould, not increasing structural member, the side frame 22 of different size can be combined into, also, namely when not changing mould, not increasing structural member, different frameworks can be combined into.
Concrete, as shown in figure 13, described end frame 21 is also provided with described buckle male end a, described buckle female end b, described latch c and described slot d; Buckle male end a on described end frame 21 is connected with the buckle female end b buckle on described concatenation unit 220; Buckle female end b on described end frame 21 is connected with the buckle male end a buckle on described concatenation unit 220; Latch c on described end frame 21 and the slot d grafting on described concatenation unit 220; Slot d on described end frame 21 and the latch c grafting on described concatenation unit 220.The side frame 22 adopting above-mentioned end frame 21 and be put together through some assembled unit, is all assembled together by the mode of buckle and grafting between all parts, tightens up, to cell 20 reliable fixations between last side frame 22 and end frame 21 with band.
Wherein, for strengthening the effect that its buckle connects further, catching groove a1 can also be set on buckle male end a, buckle female end b is arranged at the fixture block b1 of this catching groove a1 adaptation.
Wherein, further preferably, as shown in figure 12, described concatenation unit 220 is centrosymmetric; As shown in figure 14, described end frame 21 is centrosymmetric.Above-mentioned side frame 22 and end frame 21 all adopt centrosymmetric structure, and body junction the number of components can be reduced to minimum by this structure, has very strong interchangeability; Side frame 22 and end frame 21, each fitting surface in side frame 22 between each concatenation unit 220 all there are a pair fixing structure for buckle (buckle male end a and buckle female end b) and a pair alignment pin anti-rotation (and above-mentioned latch c and slot d) structure, formation four point positioning is fixed, and avoids before band tightens up because carrying, upset cause battery pack to fall apart.
The specific works process of its heat radiation module is described below, as shown in Figure 8, fan 31 High Rotation Speed is middle in fan protection lid 3 forms negative pressure, pressure reduction between fan protection lid 3 and air inlet makes cool exterior air enter from four wind passage mouths, flows through the air channel in heating panel 1a, lower heating panel 1b and left air path, right air path respectively; In left air path and right air path, coolant and electrode connecting piece carry out heat exchange, and the heat simultaneously cell 20 metal shell distributed is by fin 12 and the coolant heat exchange in air channel in heating panel 1; Reach abundant heat radiation, ensure electrode connecting piece temperature sampling point and cell 20 true temperature close, thus ensure that temperature adopts the validity of data.
Under same test condition, by have this heat radiation module with without the module that dispels the heat the contrast test of electrokinetic cell system, under ambient temperature 23 DEG C of isoperibols, 200A electrokinetic cell system without heat radiation module is carrying out the uninterrupted circulation time of 1C, equilibrium temperature peak is up to 58 DEG C, and possess this heat radiation module at the uninterrupted circulation time of 2C, its equilibrium temperature peak just 48 DEG C, the uninterrupted cyclic balance temperature maximum of 2.5C is 55 DEG C, charge-discharge magnification can be enhanced about more than once, high improves 2.5 multiplying powers, 4C frequency modulation operating mode cell 20 maximum temperature can maintain within 40 DEG C, module internal has better temperature consistency simultaneously.Therefore this heat radiation module can directly apply to field, large multiplying power frequency modulation power station, ensures battery operated in controlled temperature range, improves the useful life of energy-storage system.
To sum up, the above-mentioned electrokinetic cell system that this example provides, by employing above-mentioned heating panel 1 in the inner, inheriting the excellent properties of heating panel 1, effectively raising the radiating efficiency of its electrokinetic cell system, improve the charge-discharge magnification of battery modules 2.Also the volume of heating panel 1 is efficiently reduced.Meanwhile, owing to adding cover plate 11 in heating panel 1, therefore power can be distributed to each fin 12a, effectively improve the structural strength of heating panel 1 entirety.Be subject in the situations such as gravity, vibration, impact, can as a part for electrokinetic cell system shell, protection battery modules 2 is not damaged.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.
Claims (15)
1. an electrokinetic cell system, comprise battery modules and heat radiation module, it is characterized in that, described battery modules comprises framework and is installed on the some cells in described framework; Described framework comprise be positioned at described battery modules left surface, right flank two pieces of side frames and be installed on two pieces of end frames of described battery modules front end face and rear end face; Described side frame is spliced by some concatenation units;
Described concatenation unit is provided with buckle male end, buckle female end; Described buckle male end on adjacent described concatenation unit is connected with the mutual buckle of described buckle female end; Described concatenation unit is also provided with latch and slot; Described latch on adjacent described concatenation unit and described slot cooperatively interact grafting; Described heat radiation module comprises Gai Heyou air channel, left air channel lid, and described left air channel lid and described right air channel lid are arranged on outside described side frame, are combined to form left air path and right air path with described side frame.
2. electrokinetic cell system according to claim 1, is characterized in that, described battery modules comprise large, lower large, left surface, right flank, front end face and rear end face; Upper large of described battery modules and lower large is all provided with heating panel; Be called heating panel and lower heating panel.
3. electrokinetic cell system according to claim 2, is characterized in that, described heating panel comprises fin and cover plate, and described fin comprises egative film and is arranged in the some fins on described egative film in pectination; Described cover plate is fixedly connected with described fin, and the fin on described fin is between described egative film and described cover plate; Described egative film, between described fin and described cover plate, form air channel.
4. electrokinetic cell system according to claim 3, is characterized in that, the one or more combination during described fin and described cover plate are fixing by welding, heat-conducting glue bonding or machinery is fixed connection.
5. electrokinetic cell system according to claim 3, is characterized in that, described cover plate comprises inner surface and outer surface, described cover inner surface is formed with some grooves mated with fin; The free end of described fin inserts in the groove on described cover plate.
6. electrokinetic cell system according to claim 3, is characterized in that, the egative film left and right sides on described fin upwards bends, in formation downside, both sides; The left and right sides of described cover plate bends downwards, forms upper side in both sides; The downside of the described fin left and right sides and the downside of the described cover plate left and right sides are connected, and form hollow form structure, the fin on described fin is placed in described hollow form structure.
7. electrokinetic cell system according to claim 3, is characterized in that, the egative film back side of described fin is longitudinally provided with some heat pipes.
8. electrokinetic cell system according to claim 3, is characterized in that, the egative film back side of described fin is provided with some semiconductor heating and cooling chips.
9. electrokinetic cell system according to claim 3, is characterized in that, the egative film back side of described heating panel scribbles insulating protective coating.
10. electrokinetic cell system according to claim 9, is characterized in that, the thickness of described insulating protective coating is 0.05-1mm.
11. electrokinetic cell systems according to claim 1, is characterized in that, described heat radiation module also comprises fan protection lid, and described fan protection lid is installed on the front end face of described battery modules, and described fan protection covers and is provided with cooling fan.
12. electrokinetic cell systems according to claim 1, is characterized in that, described end frame and side frame surround square shape; Described cell is laterally placed between two pieces of described side frames, and the electrode terminal on it stretches in described side frame.
13. electrokinetic cell systems according to claim 2, is characterized in that, described cell is wrapped with insulating protective film; Thermally conductive insulating layer is equipped with between described upper heating panel and upper large of described battery modules and between described lower heating panel and lower large of described battery modules.
14. electrokinetic cell systems according to claim 1, is characterized in that, described end frame is provided with described buckle male end, described buckle female end, described latch and described slot; Buckle male end on described end frame is connected with the buckle female end buckle on described concatenation unit; Buckle female end on described end frame is connected with the buckle male end buckle on described concatenation unit; Latch on described end frame and the slot grafting on described concatenation unit; Slot on described end frame and the latch grafting on described concatenation unit.
15. electrokinetic cell systems according to claim 1, is characterized in that, described concatenation unit is centrosymmetric; Described end frame is centrosymmetric.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420648125.0U CN204230383U (en) | 2014-10-31 | 2014-10-31 | A kind of electrokinetic cell system |
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| CN201420648125.0U CN204230383U (en) | 2014-10-31 | 2014-10-31 | A kind of electrokinetic cell system |
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| CN204230383U true CN204230383U (en) | 2015-03-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016066011A1 (en) * | 2014-10-31 | 2016-05-06 | 比亚迪股份有限公司 | Heat sink and power battery system |
| CN111741652A (en) * | 2020-06-27 | 2020-10-02 | 江苏海鼎电气科技有限公司 | Internal transverse and external longitudinal air-cooled electronic power heat dissipation device |
-
2014
- 2014-10-31 CN CN201420648125.0U patent/CN204230383U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016066011A1 (en) * | 2014-10-31 | 2016-05-06 | 比亚迪股份有限公司 | Heat sink and power battery system |
| US10396409B2 (en) | 2014-10-31 | 2019-08-27 | Byd Company Limited | Heat sink and power battery system |
| CN111741652A (en) * | 2020-06-27 | 2020-10-02 | 江苏海鼎电气科技有限公司 | Internal transverse and external longitudinal air-cooled electronic power heat dissipation device |
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