CN101378110B - Battery container unit - Google Patents
Battery container unit Download PDFInfo
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- CN101378110B CN101378110B CN2008102126371A CN200810212637A CN101378110B CN 101378110 B CN101378110 B CN 101378110B CN 2008102126371 A CN2008102126371 A CN 2008102126371A CN 200810212637 A CN200810212637 A CN 200810212637A CN 101378110 B CN101378110 B CN 101378110B
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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
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Abstract
A battery container unit including: an enclosure; and a plurality of battery modules of cylindrical shape, wherein each adjacent pair of the electrode terminals is serially connected by a conductive linking member, the plurality of battery modules are provided in matrix form within the enclosure by a support member, a first cooling medium flow path is provided which linearly flows a cooling medium along in parallel with the electrode terminals and the conductive linking members of the plurality of battery modules in a region within the enclosure near an end in the axial direction of the plurality of battery modules, and a second cooling medium flow path is provided in a gap along the axial direction of the battery modules, between adjacent battery modules within the enclosure, which flows the cooling medium toward the first cooling medium flow path.
Description
Technical field
The battery container unit that the present invention relates to a plurality of battery modules are disposed in the framework side by side and use as the power supply of electric automobile etc.
The application based on the patent application 2007-223056 of Patent Office of Japan application on August 29th, 2007, and the patent application of Patent Office of Japan application on August 29th, 2007 (2007-223057 advocates priority, and its content is quoted at this.
Background technology
As the driving power of electric automobile, known have a following battery container unit, that is, in framework and the roughly columned a plurality of battery modules of row arrangement, and battery module that will adjacent inside is connected in series via conduction binding parts each other.
In this battery container unit, each battery module generates heat because of discharging and recharging of electricity.Therefore, for effectively utilizing the performance of battery module, battery module need be cooled off efficiently.
Therefore, as having developed following structure at the battery container unit of above-mentioned situation, the introducing port and the outlet of cold-producing medium are set on framework, make the cold-producing mediums such as air that are taken into from introducing port contact the outer peripheral face of each battery module, battery module integral body is cooled off by outer peripheral face.
(for example opening communique 2000-No. 134853) with reference to the spy
But this existing battery container unit is by cold-producing medium the main outer peripheral face in the battery module in the framework to be cooled off.Therefore, on cooling effectiveness this point, can't say fully with respect to each battery module.In addition, for each battery module is fully cooled off, in this existing battery container unit, just must in framework, form the big refrigerant flow path of sectional area in the adjacent spaced apart abundant interval of battery module, thereby can not avoid the maximization of whole unit.
Therefore, what studying at present is to guide the conduction that connects each other to the electrode terminal with adjacent battery module to link parts energetically the cooling medium, and via conduction binding parts and electrode terminal each battery module is cooled off efficiently.But, under this situation, a plurality of battery modules that in framework, are arranged side by side, and the upstream of cooling off the flow direction of medium certainly has a plurality of conductions to link parts and side by side towards the downstream.And, when the heat release zone (for example crooked and zone that surface area is increased) of substantial middle portion of bearing of trend that each conduction links parts was arranged side by side along the flow direction of cold-producing medium, the conduction that is positioned at the downstream of flowing of cold-producing medium linked the influence that conduction that parts are subjected to upstream side significantly links the heat of parts.Thus, deviation appears in the cooling performance of each battery module, and is difficult to make the performance maximum limit ground performance of battery container unit integral body.And, for avoiding this situation, and have to increase the sectional area of refrigerant flow path.
Summary of the invention
So problem of the present invention is, a kind of battery container unit is provided, can improve the cooling effectiveness of the battery module in the framework, and can be with the whole unit miniaturization.
For solving above-mentioned framework, the present invention adopts following formation.
(1) a kind of battery container unit, it possesses: framework; A plurality of battery modules, it is cylindric, be arranged in side by side in the described framework, and has electrode terminal at its axial end portion, wherein, adjacent described electrode terminal links parts via conduction each other and is connected in series, described a plurality of battery module is located in the described framework via holding member is rectangular, zone near the described axial end of described a plurality of battery modules the described framework is provided with and makes cold-producing medium along the described electrode terminal of described a plurality of battery modules and first refrigerant flow path that flows through point-blank side by side of described conduction binding parts, and the described axial gap along described battery module between the described adjacent battery module in described framework is provided with second refrigerant flow path that described cold-producing medium is flowed towards described first refrigerant flow path.
According to described battery container unit, cold-producing medium electrode terminal and the conduction along each battery module axial end portion in framework that is imported into first refrigerant flow path links flowing through point-blank side by side of parts, at this moment, electrode terminal and the conduction with each battery module links the parts cooling.In addition, this moment, second refrigerant flow path of guide of flow cold-producing medium between adjacent battery module by the cold-producing medium in first refrigerant flow path flowed, and flowing the outer peripheral face cooling of each battery module by this cold-producing medium that is directed.
In addition, utilize, can cool off effectively from the thermal discharge electrode terminal how of battery module inside and the binding parts that conduct electricity along the electrode terminal of each battery module and the cold-producing medium of first refrigerant flow path that flows point-blank arranged side by side of conduction binding parts.In addition, because by the outer peripheral face of each battery module can being cooled off by the flowing of cold-producing medium of second refrigerant flow path of the guide of flow of the cold-producing medium of first refrigerant flow path, so can carry out the more effective cooling of the battery module in the framework, its result can be with the whole unit miniaturization.
(2) in addition, described battery container unit also can followingly constitute: near described axial one the zone of described framework distolateral at described battery module is provided with described first refrigerant flow path, and near the zone of the described framework described axially another of described battery module is distolateral is provided with the cold-producing medium that is communicated with described second refrigerant flow path and is taken into mouth.
Under this situation, be taken into a mouthful cold-producing medium that imports from the cold-producing medium of framework and flow to the first refrigerant flow path side, therebetween with the outer peripheral face cooling of each battery module by second refrigerant flow path.
Like this, can be extremely simple structure, and cold-producing medium is flowed at second refrigerant flow path reliably.Therefore, can realize the more miniaturization of unit and the reduction of goods cost.
(3) in addition, described battery container unit also can followingly constitute: described conduction links parts and comprises: the flow direction of the described cold-producing medium in described first refrigerant flow path will adjacent described electrode terminal each other at the flow direction of described cold-producing medium a plurality of first conduction binding parts of bridge joint abreast; Be positioned on the extended line of each bridging line that adjacent two described first conductions link parts, two electrode terminals adjacent one another are are linked parts according to second conduction at the mode bridge joint of the flow direction quadrature of cold-producing medium each other.
Under this situation, the heat release zone of the first conduction binding parts and the second conduction binding parts can be not overlapping at the flow direction of cold-producing medium.
Therefore, can be evenly and cool off a plurality of battery modules in the framework efficiently, can realize the miniaturization of whole unit.
(4) in addition, described battery container unit also can followingly constitute: the cold-producing medium dividing plate that this battery container unit also possesses crooked, this cold-producing medium dividing plate will link the refrigerant passage of parts and open by the refrigerant passage zoning that described second conduction links parts by described first conduction.
Under this situation, the path that first cold-producing medium that conducts electricity the binding parts and the second conduction binding parts passes through is separated into special-purpose refrigerant passage respectively by the cold-producing medium dividing plate.
That is, by the cold-producing medium dividing plate flow direction of refrigerant flow path is separated into fully by first conduction and links the flow direction of parts and link the flow direction of parts by second conduction.Therefore, can make the conduction in downstream link the thermal impact that conduction that parts more are difficult to be subjected to upstream side links parts.In addition, can guarantee the insulation breakdown distance in heteropole space to each other by the cold-producing medium dividing plate.
(5) in addition, described battery container unit also can followingly constitute: described cold-producing medium dividing plate forms linking on the wall of described framework that parts and described second conduction link the parts subtend with described first conduction.
Under this situation, owing on the wall of framework, be formed with the cold-producing medium dividing plate, so designs simplification can be able to be realized the reduction of goods cost.
(6) in addition, described battery container unit also can followingly constitute: described first refrigerant flow path is located at described battery module axial one distolateral and another is distolateral of described framework respectively.
Under this situation, the electrode terminal of the axial both sides of each battery module and conduction link the refrigerant cools of parts by near first refrigerant flow path flowing through separately.In addition, in second refrigerant flow path, flow through cold-producing medium from first refrigerant flow path of the axial centre lateral sides of battery module.And the electrode terminal and the conduction of the both sides of each battery module that can be efficiently that thermal discharge is more link the parts cooling.
(7) in addition, the battery container unit of described (6) also can followingly constitute: described conduction links parts and comprises: the flow direction of the described cold-producing medium in described first refrigerant flow path will adjacent described electrode terminal each other at the flow direction of described cold-producing medium a plurality of first conduction binding parts of bridge joint abreast; Be positioned on the extended line of each bridging line that adjacent two described first conductions link parts, two electrode terminals adjacent one another are are linked parts according to second conduction at the mode bridge joint of the flow direction quadrature of cold-producing medium each other.
(8) in addition, the battery container unit of described (6) also can followingly constitute: the cold-producing medium dividing plate that this battery container unit also possesses crooked, this cold-producing medium dividing plate will link the refrigerant passage of parts and open by the refrigerant passage zoning that described second conduction links parts by described first conduction.
(9) in addition, the battery container unit of described (6) also can followingly constitute: described cold-producing medium dividing plate forms linking on the wall of described framework that parts and described second conduction link the parts subtend with described first conduction.
(10) in addition, described battery container unit also can followingly constitute: be provided with in first refrigerant flow path of described framework the local speedup portion of improving of the flow velocity of described cold-producing medium.
Under this situation, when cold-producing medium when first refrigerant flow path flows, speedup portion makes that the stream of cold-producing medium is local to be improved, and at this moment, produces flow-disturbing near the negative pressure that produces the speedup portion in first refrigerant flow path.And flow-disturbing is called the flowing of cold-producing medium of second refrigerant flow path.
Can make second refrigerant flow path produce flowing of cold-producing medium efficiently by the speedup portion that is located in first refrigerant flow path, therefore, can further improve cooling effectiveness the outer peripheral face of each battery module.
(11) in addition, described battery container unit also can followingly constitute: described speedup portion comprises axially outstanding and link the jut on parts opposite with described conduction from described framework along described battery module.
Under this situation,, can realize the reduction of goods cost by the simplification of structure owing to utilize the jut of being located at framework to form speedup portion.
Description of drawings
Fig. 1 represents first embodiment of the invention, be with Fig. 2 in the corresponding profile of A-A section;
Fig. 2 represents same execution mode, is the end view drawing that has taken off the battery container unit behind second cover;
Fig. 3 represents same execution mode, is the stereogram of battery module;
Fig. 4 is when being illustrated in electrode terminal and cooling off and the performance plot in the variations in temperature of the central part of battery module when not cooling off;
Fig. 5 is the performance plot of the relation of the stream of the size of expression terminal linking part and cold-producing medium and cooling capacity;
Fig. 6 is the sectional arrangement drawing of expression second embodiment of the invention;
Fig. 7 is the end view drawing corresponding with Fig. 2 of expression third embodiment of the invention;
Fig. 8 represents four embodiment of the invention, be with Figure 10 in the corresponding profile of D-D section;
Fig. 9 represents same execution mode, is the plane graph that has taken off the battery container unit behind the cover;
Figure 10 represents same execution mode, be with Fig. 8 in the corresponding part sectioned view of C-C section;
Figure 11 represents same execution mode, is a plurality of battery modules have been carried out the stereogram of arranging;
Figure 12 is when being illustrated in electrode terminal and cooling off and the performance plot in the variations in temperature of the central part of battery module when not cooling off;
Figure 13 is the performance plot of the relation of the stream of the size of expression terminal linking part and cold-producing medium and cooling capacity;
Figure 14 represents fifth embodiment of the invention, is and the profile of Fig. 8 with form.
Embodiment
Below, with reference to the description of drawings the embodiments of the present invention.In addition, in the explanation of each following execution mode,, omit the explanation of the part that repeats with a part of mark prosign.
At first, with reference to Fig. 1～Fig. 3 first embodiment of the invention is described.
The battery container unit 1 of present embodiment uses as the driving power of the electric automobile that comprises composite power vehicle.At roughly cube-shaped metal framework 2 inner a plurality of battery modules 3 of having taken in arranged side by side with arranging.Battery module 3 as shown in Figure 3, module bodies 4 forms cylindric, and is provided with each side of positive and negative electrode terminal 5 in the axial both ends of the surface of this module bodies 4.In addition, in this specification, battery module is meant, forms except that being connected in series a plurality of monocells the columned situation, also comprises the situation of columned monocell monomer.
At this,, the direction that links the both-side opening of framework main body 6 is called " opening direction " for ease of explanation.Form a plurality of abutment wall 9 at the inwall of framework main body 6 along opening direction.By these each abutment wall 9 supporting battery modules 3.
A plurality of battery modules 3 are according to making axially being arranged side by side in framework main body 6 along the mode of the opening direction of framework main body 6 of each battery module 3.As shown in Figure 2, be configured to rectangular according to the directed just regularly in length and breadth mode of integral body when opening direction is observed.In the situation of the example of present embodiment, a plurality of battery modules 3 are configured to 2 section 8 row.And, between the adjacent battery module 3 of each section and each row, be provided with along the holding member 10 of the opening direction of framework integral body 6.Therefore, as shown in Figure 2,, a plurality of battery modules 3 are disposed with above-mentioned a plurality of abutment wall 9 and holding member 10 reticulate pattern ground in the inboard of framework main body 6.
At this, the face that the outer peripheral face with battery module 3 of each abutment wall 9 and holding member 10 contacts forms circular-arc along with the outer peripheral face of battery module 3.Become four spaces that extend axially out by holding member 10 and abutment wall 9 zonings around each battery module 3 to battery module 3.A plurality of spaces that this zoning goes out constitute second refrigerant flow path 11 described later.
In addition, as mentioned above, for a plurality of battery modules 3 that are disposed at framework main body 6 inboards, adjacent modules positive pole and negative pole to each other is in the other direction.Adjacent electrode terminal 5 is 12 suitable bindings of bus by link parts as conduction each other.By a plurality of electrode terminals 5 being linked, all battery modules 3 in the framework main body 6 are connected in series by this bus 12.
On the other hand, the first cover portion 7 have the roof 7a corresponding with the end surface shape of framework main body 6 and with the sidewall 7b at the corresponding four sides of the perisporium of framework main body 6.A sidewall 7b who in the sidewall 7b at four sides, joins and be formed with the introducing port 15 and the outlet 16 of cooling air (cooling medium) with it on another sidewall 7b of subtend respectively with first cover, 7 minor face.Negative pressure catheter 17 is connected with the outlet 16 of this first cover 7.On this negative pressure catheter 17, connect the attraction fan 18 that is used in framework 2, attracting air.Introducing port 15 and outlet 16 are located at the subtend position of each sidewall 7b, when the air that begins to attract fan 18 to carry out attracts, the air that is inhaled into from introducing port 15 advances towards outlet 16 linearity in framework 2, is inhaled into by outlet 16 and negative pressure catheter 17 to attract fan 18.With first refrigerant flow path 19 among this streams formation the present invention in first cover 7 of introducing port 15 and the binding of outlet 16 straight lines.This first refrigerant flow path 19 is adjacent with bus 12 with axial one of a plurality of battery modules 3 that are disposed at framework main body 6 distolateral electrode terminal 5.
In addition, the roof 7a at first cover 7 is formed with towards a plurality of juts 20 of first refrigerant flow path 19.This jut 20 be arranged on roof 7a in towards each of first refrigerant flow path 19 towards parts of 12 subtends.The top of each jut 20 with towards 12 curved protrusion 13 opposites.Gap between the two by the opposite will be by first refrigerant flow path 19 the partly throttling of flowing of cooling air.In addition, in the situation of present embodiment, jut 20 constitutes the speedup portion that the speed of cooling air is quickened.
In addition, second cover 8 is identical with first cover 7, have the roof 8a corresponding with the end surface shape of framework main body 6 and with the sidewall 8b at the corresponding four sides of the perisporium of framework main body 6, be formed with on one of in sidewall 8b be used for being taken into cooling air from the outside be taken into mouthfuls 21 (cold-producing medium are taken into mouthful).Be taken into mouthful 21 air that are taken into each axial second refrigerant flow path 11 by a plurality of battery modules 3 in framework main body 6 from this and be inhaled into first refrigerant flow path 19.
In addition, also can suit to be provided with at second cover, 8 roof 8a and be taken into mouthfuls 21.Also can be in roof 8a the position corresponding with electrode terminal 5 and bus 12 be provided with and be taken into mouthfuls 21, under this situation, the cooling of electrode terminal 5 and bus 12 is more effectively carried out.
In more than constituting, if drive and attract fan 18, then the cooling air linearity that is taken into from the introducing port 15 of framework 2 enters first refrigerant flow path 19, and is inhaled into negative pressure catheter 17 when using battery storage power supply 1.Meanwhile, a distolateral generation negative pressure that is flowing in second refrigerant flow path 11 of the cooling air by flowing through first refrigerant flow path 19 utilizes this negative pressure inlet 21 cooling airs that are taken into of will asking for to introduce first refrigerant flow path 19 by second refrigerant flow path 11.At this moment, utilize linearity to flow through the cooling air of first refrigerant flow path 19 with one of each battery module 3 distolateral electrode terminal 5 and bus 12 coolings.Meanwhile, the outer peripheral face cooling of the cooling air of second refrigerant flow path 11 with each battery module 3 flow through in utilization.
In this battery storage power supply 1, the cooling air that flows through first refrigerant flow path 19 flows point-blank along a plurality of electrode terminals 5 of a plurality of battery modules 3 and the arrangement of a plurality of bus 12 in framework 2.Therefore, electrode terminal 5 and bus 12 coolings that utilize the cooling air of big flow can be efficiently the heat generating part via the high material of heat conductivity and each battery module 3 directly to be linked.In addition, compare,, flow through cooling air with low discharge by second refrigerant flow path 11 at the outer peripheral face of each battery module 3 with first refrigerant flow path 19.Therefore, can prevent reliably that the inside of framework 2 is full of heat.
Therefore, in this battery storage power supply 1, the long-pending refrigerant flow path in heavy in section is not set in the periphery territory of a plurality of battery modules 3, just a plurality of battery modules 3 in the framework 2 can be cooled off efficiently.Therefore, sufficient cooling performance can be guaranteed, the miniaturization of whole unit can be realized simultaneously.
So Fig. 4 represents the situation of the cooling of carrying out electrode terminal 5 as this execution mode and does not carry out the result that the variations in temperature of the central part of the battery module 3 under the situation of cooling of electrode terminal 5 has been carried out investigation.From showing, under the situation of the cooling of carrying out electrode terminal 5, can reduce the temperature of the central part of battery module 3 in early days with figure.
In addition, when Fig. 5 is illustrated in the cooling of carrying out electrode terminal 5, be the result that the size of each electrode terminal 5 compares to the relation of the sendout of first refrigerant flow path and second refrigerant flow path and cooling capacity to each terminal attachment size with cold-producing medium.From showing with figure, big with respect to second refrigerant flow path when carrying out the cooling of electrode terminal 5 to sendout one side of first refrigerant flow path, in addition, on the big electrode terminal 5 of terminal attachment size, can improve cooling capacity.
Therefore, as present embodiment, curved protrusion 13 and increased in size are being set on the bus 12 of first refrigerant flow path 19, this is favourable to the cooling effectiveness that improves battery module 3.
In addition, in the battery container unit 1 of present embodiment, jut 20 with the top subtend of bus 12 is set on first cover 7 of framework 2, and the gaps by and bus 12 that make by this jut 20 will be by the flow restriction of the interior cooling air of first refrigerant flow path 19.Therefore, the flow-disturbing that produces on every side that is regardless of by this throttling can be introduced first refrigerant flow path, 19 sides efficiently with the cooling airs in second refrigerant flow path 11.Therefore, can fully dwindle the gap of adjacent battery module 3.Therefore, favourable to the miniaturization that realizes whole unit.Particularly in the situation of the structure of this execution mode, because for just on first cover 7, having formed the simple structure of jut 20, so it is with high costs to suppress goods.
In addition, adopt the zone of an axial side of a plurality of battery modules 3 in framework 2 that the first cold-producing medium sinuous flow 19 only is set in this battery container unit 1, be taken into the structure of mouth 21 in another distolateral setting of framework 2.Therefore, guarantee sufficient cooling performance, and realize the miniaturization of whole unit and subduing of goods cost a plurality of battery modules 3.
But first refrigerant flow path 19 also can be arranged on the axial both sides of a plurality of battery modules 3 in the framework 2.
The axial both sides that Fig. 6 is illustrated in a plurality of battery modules 3 in the framework 2 are provided with second execution mode of this invention of the first cold-producing medium sinuous flow 19.
The battery container unit 101 of present embodiment also is provided with and identical introducing port 15A and the outlet 16A of first cover at the sidewall 8b of second cover 8.According to electrode terminal 5 ways of connecting a plurality of buses 12 are set with the axial other end (being second end) of a plurality of battery modules 3.The not shown second distolateral bus 12 among Fig. 6, but dot the second distolateral bus 12 among Fig. 2.Be formed with another first refrigerant flow path 19 according to mode side by side along these second distolateral a plurality of buses 12.Outlet 16A is connected with negative pressure catheter 18 via negative pressure catheter 17A.In addition,, form jut 20A, obtain the throttling action of stream by the gap between jut 20A and the bus 12 according to mode with each curved protrusion 13 (not shown) subtend of the second distolateral bus 12 at second cover, 8 roof 8a.
In the situation of this battery container unit 101, when attracting fan 18 actions, cooling air flows to two first refrigerant flow paths 19 in the framework 2.At this moment because the flowing of cooling air in each first refrigerant flow path 19, thereby in second refrigerant flow path 11, be formed with jut 20 and jut 20A be regardless of the generation negative pressure.By this negative pressure, cooling air to arbitrary end of second refrigerant flow path 11, is inhaled into first refrigerant flow path 19 along the axial flow of second refrigerant flow path 11.Cooling air promotes from the flow-disturbing of this second refrigerant flow path 11 to jut 20A, the 20A periphery generation that flows through first refrigerant flow path 19 of each first refrigerant flow path 19.
Therefore, in this battery container unit 101, because first refrigerant flow path 19 by being disposed at both sides respectively directly cools off the electrode terminal 5 and the bus 12 of the axial both sides of the battery module 3 in the framework 2, so can cool off each battery module 3 more efficiently.
In addition, the invention is not restricted to above-mentioned execution mode, in the scope that does not break away from its aim, can carry out various design alterations.For example, in the above-described embodiment, on first cover, 7 and second cover 8, form formation speedup portion with the jut 20 of bus 12 subtends.Relative with it, the battery container unit 201 of the 3rd execution mode as shown in Figure 7 also can setting separate specified gap a pair of jut 30a, 30b opposite to one another on first cover and second cover, utilize this paired jut 30a, 30b to constitute speedup portion.In addition, in the respective embodiments described above, be connected with at the outlet 16 of first refrigerant flow path 19 and attract fan 18, but also can connect the force feed device of cooling airs at the introducing port 15 of first refrigerant flow path 19.
Below, with reference to Fig. 8～Figure 14 execution mode more of the present invention is described.In addition, in the explanation of each following execution mode, put well, omit the explanation of the part that repeats with a part of mark is same.
At first, Fig. 8～the 4th execution mode of the present invention shown in Figure 11 is described.
The battery container unit 301 of present embodiment uses as the driving power of the electric automobile that comprises composite power vehicle, at roughly cube-shaped metal framework 302 inner a plurality of battery modules 303 of having taken in arranged side by side with arranging.Battery module 303 as shown in figure 11, module bodies 304 forms cylindric, and is provided with each side of positive and negative electrode terminal 305 in the axial both ends of the surface of this module bodies 304.In addition, in this specification, battery module is meant, forms except that being connected in series a plurality of monocells the columned situation, also comprises the situation of columned monocell monomer.
As shown in figure 10, framework 302 possess the square framework main body 306 that is provided with opening in the end of opposite both sides and stop up framework main body 306 both-side opening first cover, 307 and second cover, 308, two covers 307,308 by bolt in conjunction with etc. be incorporated into integratedly on the framework main body 306.
Below, for ease of explanation, the direction that links the both-side opening of framework main body 306 is called " opening direction ".Form a plurality of abutment wall 309 at the inwall of framework main body 306 along opening direction.By these each abutment wall 309 supporting battery modules 303.
A plurality of battery modules 303 are according to making axially being arranged side by side in framework main body 306 along the mode of the opening direction of framework main body 306 of each battery module 303.As shown in Figure 9, be configured to rectangular according to the directed just regularly in length and breadth mode of integral body when opening direction is observed.In the situation of the example of present embodiment, battery module 303 is configured to 4 section 6 row.In addition, in the situation of the arrangement that battery module 303 is described, describe " last 2 periods ", " following 2 periods " etc. and upper and lower region are separated corresponding with the diagram of Fig. 8 below.
And, between the adjacent battery module 303 of each section and each row, be provided with along the holding member 310 of the opening direction of framework integral body 306.Therefore, as shown in Figure 9,, a plurality of battery modules 303 are disposed with above-mentioned a plurality of abutment wall 309 and holding member 310 reticulate pattern ground in the inboard of framework main body 306.
At this, the face that the outer peripheral face with battery module 303 of each abutment wall 39 and holding member 310 contacts forms circular-arc along with the outer peripheral face of battery module 303.Become to four spaces 312 that extend axially out by holding member 310 and abutment wall 309 zonings around each battery module 303.
In addition, as mentioned above, a plurality of battery modules 303 that are disposed at framework main body 306 inboards are that reciprocal mode is settled according to adjacent modules positive pole and negative pole to each other, bus 311 suitable link of adjacent electrode terminal 305 by link parts as conduction.This bus 311 carries out the binding of a plurality of electrode terminals 305 according to the mode that the last 2 sections all batteries module 303 in the framework main body 306 and following 2 sections all batteries module 303 are connected in series respectively
On the other hand, the first cover portion 307 have the roof corresponding with the end surface shape of framework main body 306 and with the sidewall at the corresponding four sides of the perisporium of framework main body 306.A sidewall that in the sidewall at four sides, joins with first cover, 307 minor face and with it another sidewall of subtend be formed with the introducing port 315 and the outlet 316 of cooling air (cooling medium) respectively.As shown in Figure 8, the configuration of Width one side of introducing port 315 amesiality walls, the Width opposite side configuration of outlet 316 another sidewalls of deflection.Be formed with the refrigerant flow path 317 that flows through cooling air between these introducing ports 315 in framework 302 and the outlet 316.In the situation of present embodiment, attract fan (not shown) to be connected with outlet 316 via negative pressure catheter (not shown).By driving this attraction fan, will be from the outside that the cooling air that introducing port 315 flows into is discharged to framework 302 by refrigerant flow path 317 and outlet 316.Refrigerant flow path 317 mainly constitutes in by the space of the side walls enclose of first cover 307.On the other hand, it is outstanding and towards refrigerant flow path 317 in this spatial portion to be held in the electrode terminal 305 of a plurality of battery modules 303 of framework main body 306 and bus 311.
And, under the state that first cover 307 has been installed on the framework main body 306, as shown in Figure 8, in framework 302, form from introducing port 315 forwards the importing side that goes out of straight-line extension go forward side by side path 318 with parallel and towards the discharge side that outlet 316 straight-line extensions the go out path 319 of going forward side by side with go forward side by side path 318 of this importing side.The cooling airs that are imported in the framework 302 mainly change route and flow towards discharging the side path 319 approximate right angle ground of going forward side by side from importing the side path 318 of going forward side by side.
So, in the situation of present embodiment, in of a plurality of buses 311 following configurations of first cover, 307 sides with 303 connections of adjacent battery module.
Promptly, with last 2 sections battery modules, 303 corresponding bus lines 311 all according to along going forward side by side path 318 towards discharging the go forward side by side flow direction configuration of cooling air of path 319 of side from importing side, and will be along the battery module 303 of the flow direction disposed adjacent of cooling air bridge joint each other.Below, these buses are called " the first bus 311A " (first conduction links parts).In addition, with following 2 sections battery modules, 303 corresponding bus lines 311 all along with the direction configuration that flows to quadrature of above-mentioned cooling air, and will with the battery module 303 of the direction disposed adjacent that flows to quadrature of cooling air bridge joint each other.Below, these buses are called " the second bus 311B " (second conduction links parts).And, be disposed in following 2 sections upside section the second bus 311B with respect to the second bus 311B that is disposed at lower lateral section in following 2 sections to the direction deflection that flows to quadrature of cooling air.
Therefore, it is underlapped at the flow direction of cooling air with its curved protrusion 313 each other of the second bus 311B that is connected following 2 sections battery modules 303 to connect the first bus 311A of 2 sections battery modules 303.
In addition, be equipped with according to going forward side by side path 318 towards discharging side the go forward side by side extended a plurality of next door 320A of mode, the 320B (cold-producing medium dividing plate) of path 319 at first cover, 307 roof from importing side.Each dividing plate 320A, 320B possess along the linearity region a of the bearing of trend of the first bus 311A and crooked and around the bending area b of the end of going into the second bus 311B from linearity region a.Adjacent a plurality of next door 320A, 320B association is moving, forms a plurality of separate paths 321a and 321b (refrigerant passage).Flow in any of separate paths 321a and 321b from importing the side cooling air that path 318 enters of going forward side by side.Each separate paths is only by relevant bus 311A or 311B.
So far the structure to first cover, 307 sides is illustrated, but second cover, 308 sides also adopt and first cover, 307 roughly the same structures.At this, the detailed description of second cover, 308 sides is omitted, in second cover, 308 sides, dispose the second bus 311B at last 2 sections by the annexation of adjacent battery module 303, dispose the first bus 311A at following 2 sections.
In more than constituting, attract fan if drive when using battery storage power supply 301, then flow into and import the go forward side by side cooling air of path 318 of sides and flow to and discharge the sides path 319 of going forward side by side from importing the side path 318 of going forward side by side, be discharged to the outside of framework 302 by outlet 316 by a plurality of each separate paths 321a, 321b from the introducing port 315 of framework 302.Therebetween, the cooling air by each separate paths 321a, 321b with curved protrusion 313 and electrode terminal 305 coolings among corresponding bus lines 311A, the 311B after, be discharged to the outside.
In this battery storage power supply 301, the cooling air that flows through first refrigerant flow path 317 flows to electrode electronics 305 and bus 311A, the 311B of a plurality of battery modules 303 in framework 302.Therefore, electrode terminal 305 and bus 311 coolings that utilize cooling air can be efficiently the heat generating part via the high material of heat conductivity and each battery module 303 directly to be linked.In addition, compare,, flow through cooling air with low discharge by refrigerant flow path 312 at the outer peripheral face of each battery module 303 with refrigerant flow path 317.Therefore, can prevent reliably that the inside of framework 302 is full of heat.
So Figure 12 represents the situation of the cooling of carrying out electrode terminal 305 as present embodiment and does not carry out the result that the variations in temperature of the central part of the battery module 303 under the situation of cooling of electrode terminal 305 has been carried out investigation.From showing, under the situation of the cooling of carrying out electrode terminal 305, can reduce the temperature of the central part of battery module 303 in early days with figure.
In addition, when Figure 13 is illustrated in the cooling of carrying out electrode terminal 305, be the result that the size of each electrode terminal 305 compares to the relation of the sendout of the stream (second refrigerant flow path) of stream (first refrigerant flow path) by electrode electronics 305 and the periphery by battery module 303 and cooling capacity to each terminal attachment size with cold-producing medium.From showing with figure, big with respect to second refrigerant flow path when carrying out the cooling of electrode terminal 305 to sendout one side of first refrigerant flow path, in addition, on the big electrode terminal 305 of terminal attachment size, can improve cooling capacity.
Therefore, as present embodiment, curved protrusion 313 and increased in size are being set on bus 311A, the 311B of refrigerant flow path 317, this is favourable to the cooling effectiveness that improves battery module 303.
In addition, in this battery container unit 301, the first bus 311A is disposed abreast at the flow direction of cold-producing medium air, simultaneously, will be in the second bus 311B of downstream or upstream side and the flow direction of cooling air disposes with meeting at right angles with respect to the first bus 311A.Because the curved protrusion 313 of the first bus 311A and the curved protrusion 313 of the second bus 311B are underlapped at the flow direction of cold-producing medium, therefore, the heat release of a bus 311A (311B) can not impact the cooling of another bus 311B (311A).Particularly in the situation of present embodiment, because the second bus 311B off normal of each section is configured, therefore, the curved protrusion 313 of two second bus 311B is overlapping at the flow direction of cold-producing medium, also can not cause the influence of heat release.Therefore, in this battery container unit 301, a plurality of battery modules 303 in the framework 302 evenly and efficiently can be cooled off, therefore, can be with more miniaturization of whole unit.
In addition, in this battery container unit 301, the refrigerant flow path 317 in the framework 302 utilizes a plurality of next door 320A, 320B to be divided into a plurality of separate paths 321a, 321b, so that a path is with respect to a bus 311A (311B) correspondence.Therefore, bus 311A, 311B and the electrode terminal 305 in the framework 302 can be cooled off more equably.And, corresponding with each bus 311A, 311B in this battery container unit 301, refrigerant flow path 317 is divided into a plurality of separate paths 321a, 321b, therefore, it has the advantage of the space insulation breakdown distance that can fully guarantee between the heteropole.
In addition, in the situation of this execution mode, establishing next door 320A, 320B with the roof of first, second bus 307,308 on bus 311A, 311B opposite is prominent, and constituting separate paths 321a, 321b by it.Therefore, has the advantage that designs simplification can be reduced the goods cost.
In addition, the invention is not restricted to above-mentioned execution mode, in the scope that does not break away from its aim, can carry out various design alterations.For example, in the above-described 4th embodiment, battery module 303 is arranged as 4 sections, 8 row in framework 302.But the arrangement of battery module 303 is not limited thereto, and the 5th execution mode as shown in figure 14 also can be arranged as 3 sections with battery module 303.Under this situation, next door 420A, 420B use has the structure of linearity region a and bending area b, or only is to use the structure of linearity region a.
In addition, in the above-mentioned execution mode, connected the attraction fan, but also can connect the force feed device of cooling airs at the introducing port 315 of framework 302 at the outlet 316 of framework 302.
As above the present invention is specified, but it is not subjected to above-mentioned restriction, should thinks and can carry out other various changes on this basis, this all belongs to the spirit or scope of the present invention.
Claims (8)
1. battery container unit, it possesses:
Framework;
A plurality of battery modules, it is cylindric, and has electrode terminal at its axial end portion, be arranged in side by side in the described framework, wherein,
Adjacent described electrode terminal links parts via conduction each other and is connected in series,
Described a plurality of battery module is arranged in the described framework via holding member rectangularly,
Zone near described axial one described framework distolateral of described a plurality of battery modules is provided with and makes cold-producing medium along the arrangement of the described electrode terminal of described a plurality of battery modules and described conduction binding parts and first refrigerant flow path of linear flow,
Between the described adjacent battery module in described framework, be provided with second refrigerant flow path that described cold-producing medium is flowed towards described first refrigerant flow path along the described axial gap of described battery module,
Near the zone of the described framework described axial another of described battery module is distolateral is provided with the cold-producing medium that is communicated with described second refrigerant flow path and is taken into mouth,
Described conduction links parts and comprises:
The flow direction of the described cold-producing medium in described first refrigerant flow path with adjacent described electrode terminal each other with the flow direction of described cold-producing medium abreast a plurality of first conductions of bridge joint link parts;
Be positioned on the extended line of each bridging line that adjacent two described first conductions link parts, two electrode terminals adjacent one another are are linked parts according to second conduction with the mode bridge joint of the flow direction quadrature of cold-producing medium each other.
2. battery container unit as claimed in claim 1, wherein, the cold-producing medium dividing plate that this battery container unit also possesses crooked, this cold-producing medium dividing plate will link the refrigerant passage of parts and open by the refrigerant passage zoning that described second conduction links parts by described first conduction.
3. battery container unit as claimed in claim 2, wherein, described cold-producing medium dividing plate forms linking on the wall of described framework that parts and described second conduction link the parts subtend with described first conduction.
4. battery container unit as claimed in claim 1, wherein, at another axial distolateral another first refrigerant flow path that also is provided with of the described battery module of described framework.
5. battery container unit as claimed in claim 4, wherein, the cold-producing medium dividing plate that this battery container unit also possesses crooked, this cold-producing medium dividing plate will link the refrigerant passage of parts and open by the refrigerant passage zoning that described second conduction links parts by described first conduction.
6. battery container unit as claimed in claim 5, wherein, described cold-producing medium dividing plate forms linking on the wall of described framework that parts and described second conduction link the parts subtend with described first conduction.
7. battery container unit as claimed in claim 1 wherein, is provided with in first refrigerant flow path of described framework the local speedup portion of improving of the flow velocity of described cold-producing medium.
8. battery container unit as claimed in claim 7, wherein, described speedup portion comprises axially outstanding and link the jut on parts opposite with described conduction from described framework along described battery module.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007223057 | 2007-08-29 | ||
| JP2007223057A JP5096842B2 (en) | 2007-08-29 | 2007-08-29 | Battery storage unit |
| JP2007-223057 | 2007-08-29 | ||
| JP2007223056A JP5221913B2 (en) | 2007-08-29 | 2007-08-29 | Battery storage unit |
| JP2007223056 | 2007-08-29 | ||
| JP2007-223056 | 2007-08-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101378110A CN101378110A (en) | 2009-03-04 |
| CN101378110B true CN101378110B (en) | 2011-09-14 |
Family
ID=40421527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102126371A Expired - Fee Related CN101378110B (en) | 2007-08-29 | 2008-08-27 | Battery container unit |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5221913B2 (en) |
| CN (1) | CN101378110B (en) |
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| JP5448116B2 (en) | 2009-04-01 | 2014-03-19 | エルジー・ケム・リミテッド | Battery module with improved safety |
| JP5490459B2 (en) * | 2009-07-22 | 2014-05-14 | 三洋電機株式会社 | Pack battery |
| JP5663962B2 (en) * | 2010-05-31 | 2015-02-04 | ソニー株式会社 | Battery unit |
| JP4918611B1 (en) * | 2010-11-09 | 2012-04-18 | 三菱重工業株式会社 | Battery system |
| US9905821B2 (en) * | 2010-11-15 | 2018-02-27 | Volkswagen Ag | Vehicle battery packaging |
| JP5561117B2 (en) * | 2010-11-23 | 2014-07-30 | 株式会社デンソー | Assembled battery |
| JP5663282B2 (en) * | 2010-12-01 | 2015-02-04 | カルソニックカンセイ株式会社 | Assembled battery |
| JP5736627B2 (en) * | 2010-12-20 | 2015-06-17 | エルジー・ケム・リミテッド | Lithium secondary battery cooling system |
| JP2012216360A (en) * | 2011-03-31 | 2012-11-08 | Sanyo Electric Co Ltd | Battery module |
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| JP5692132B2 (en) * | 2012-03-21 | 2015-04-01 | トヨタ自動車株式会社 | Power storage device |
| JP2013197017A (en) * | 2012-03-22 | 2013-09-30 | Toshiba Corp | Battery pack and conductive member |
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| JP5967477B2 (en) * | 2012-07-13 | 2016-08-10 | 三菱自動車工業株式会社 | Battery pack |
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| CN103346362B (en) * | 2013-06-20 | 2016-04-13 | 华南理工大学 | A kind of battery of electric vehicle air-cooling apparatus |
| JP6658387B2 (en) * | 2016-07-29 | 2020-03-04 | 株式会社デンソー | Battery pack |
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| CN106711359A (en) * | 2016-12-28 | 2017-05-24 | 常州普莱德新能源电池科技有限公司 | Battery module |
| JP2018163732A (en) * | 2017-03-24 | 2018-10-18 | 三菱自動車工業株式会社 | Battery case |
| KR102258173B1 (en) | 2017-04-07 | 2021-06-08 | 주식회사 엘지에너지솔루션 | Battery module and battery pack including the same |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2009059473A (en) | 2009-03-19 |
| JP5221913B2 (en) | 2013-06-26 |
| CN101378110A (en) | 2009-03-04 |
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