The present invention relates to a battery pack.
[2]
This application is a priority claim filed for a US patent application No. US Patent Application No. 15 / 446,733, filed as 62 / 432,954 calls and 1 March 2017, filed as 12 December 2016, of the application all information disclosed in the specification and drawings are hereby incorporated in this application by reference.
BACKGROUND
[3]
The battery pack has a battery module therein. In a conventional battery pack, various cooling methods are used to cool the battery packs could not be in ° C 1 of a desired temperature level during the operation to keep the temperature of the cross-sectional area of ​​the battery module in parallel with the lower surface of the battery module .
[4]
The conventional case of the battery pack, the battery cells located at the center of the battery module during operation has a temperature degrees 1 degree or more from the temperature of other battery cells in the battery module, which is a battery cell which is located at the center rapidly degraded than the other battery cells there is a problem.
Detailed Description of the Invention
SUMMARY
[5]
Accordingly, it is an object of the present invention to provide a battery pack which can solve the above-mentioned problems.
Problem solving means
[6]
In order to solve the above object, the present invention provides a battery pack, a battery module having a lower surface and a first plane, the first plane includes the battery modules in parallel to the bottom surface and extending along said battery module do. The battery pack, cross-coupled and further includes a cooling plate having a bottom pan and a top plate extending along the longitudinal axis. Wherein the lower surface of the battery module is disposed on the top plate. The lower fan and the top plate to define an interior region therebetween. The lower fan, and has a first and second cooling zone has a first flow path pattern for receiving a refrigerant therein. The first flow path pattern, the shape and size within 1 ° C of the first temperature level to maintain the temperature at least of the first half of the cross-sectional area of ​​the battery modules is determined. The second flow path pattern, and within 1 ° C of the first temperature level is determined in shape and size to maintain the temperature at least of the second half of the cross-sectional area of ​​the battery module. The second half of the first half and the cross-sectional area of ​​the battery modules of the cross-sectional area of ​​the battery module are parallel to and coincides with the first plane.
Effects of the Invention
[7]
In accordance with various embodiments as described above, it is possible to provide a battery pack which can solve the above-mentioned problems.
Brief Description of the Drawings
[8]
Figure 1 is a schematic diagram of a battery pack according to an embodiment of the present invention.
[9]
2 is a schematic view of the underside of the battery pack of FIG.
[10]
3 is a cross-sectional view of the battery pack along a line 3-3 of Figure 1;
[11]
4 is also a schematic view of a cooling plate used in the battery pack of FIG.
[12]
5 is a schematic view of the upper side of the cooling plate of FIG.
[13]
6 is a schematic view of the other side of the cooling plate of FIG.
[14]
7 is a schematic cross-sectional view of the cooling plate along the line 7-7 of Fig.
[15]
8 is a schematic view of the top side of the lower fan in the cold plate of FIG.
[16]
9 is a schematic view showing a boundary line that indicates whether the first, second and third battery modules are aligned in one direction on the upper side of the lower fan in the upper side of the lower pan of Fig.
[17]
10 is a schematic view of the other side of the lower pan of Fig.
[18]
11 is a schematic cross-sectional view of the cooling plate along the line 11-11 of Fig.
[19]
12 is a schematic cross-sectional view of the cooling plate along the line 12-12 of Fig.
[20]
13 is a schematic cross-sectional view of the cooling plate along the line 13-13 of Fig.
[21]
In the battery pack, FIG. 1, FIG. 14, the first, second and heat transfer modeling showing the temperature level of the first, second, and third battery module according to a parallel and spaced plane from the lower surface of the third battery module a schematic diagram illustrating the temperature change obtained from the software.
Mode for the Invention
[22]
With reference to Figure 1 to Figure 13, it is provided with a battery pack 10 according to this embodiment. The battery pack 10, and includes in the present embodiment the cooling plate 20 and the battery module according to the invention (40, 42, 44). Advantages of the cooling plate 20, the cooling plate 20 at least in the cross-sectional area of ​​the first temperature level of the battery module 40 taken along a plane (see 1000, Fig. 3) within ° C 1 of the one euros determined by the shape and size capable of maintaining the temperature of the half-patterns (370, Fig. 8) and the end face of the first temperature level of the battery module 40 according to a plane 1000 to within 1 ° C of area at least a second flow path defined by the shape and size capable of maintaining the temperature of the half of the pattern has a has a (372, see FIG. 8).
[23]
4 when to refer to FIG. 10, the cooling plate 20 is provided with a coolant flowing through the cooling plate 20 from the coolant source can be cooled to the the battery modules 40, 42 and 44 do. The cooling plate 20 includes a lower fan 60, the top plate 62, a tubular inlet port 64 and a tubular outlet port 66.
[24]
6, 8, 10 and 11 when the bottom pan 60 is coupled to the top plate 62. The lower pan, the bottom plate portion 80, the outer wall portion (82, 83, 84, 86, 88, 90, 92, 94, 96, 97, 98), the inner wall portion (110, 112, 114, 116) peripheral I shaft (120, 124, 126, 128), a triangular shaped projection (150, 152, 198, 200, 250, 252, 298, 300), the acute angle trapezoidal projection (acute trapezoidal-shaped raised portions, 154, 156 and a, 158, 160, 174, 176, 178, 180, 194, 196, 254, 256, 258, 260, 274, 276, 278, 280, 294, 296). In this embodiment, the lower fan (60) is provided with a metal such as aluminum, for example.
[25]
6, 8 and to Figure 10, outer wall portion (82, 83, 84) is coupled to the lower plate portion 80 and is extending in a first direction away from the lower plate section 80. It said outer wall portion (82, 83, 84) is disposed proximate to the first end of the lower pan 60. Said outer wall portion (82, 84) is extending substantially perpendicular to the longitudinal axis (see 302, Fig. 6) of the cooling plate 20, it is also arranged in a mutually same linear. Said outer wall portion (83) is coupled to said outer wall portion (82, 84) is disposed between said outer wall portion (82, 84).
[26]
Said outer wall portion 86 is engaged with the lower plate portion 80, it extends from the lower plate portion 80 to a distant in the first direction. It said outer wall portion 86 is coupled to and extends between the outer wall portion (84, 88), wherein the length is substantially in parallel to extend in the axis direction 302. The
[27]
The outer wall portion 88 and the inner wall portion 112 is coupled to the lower plate portion 80, and extends in the first direction far from the lower plate section 80. The outer wall portion 88 and the inner wall portion 112, the second being arranged close to an end, the longitudinal axis of the cooling plate 20 of the bottom pan 60 in (302, see FIG. 6) substantially vertical, and is also arranged in the same mutual alignment.
[28]
The inner wall portion 110 is coupled to the lower plate portion 80, it extends from the lower plate portion 80 to a distant in the first direction. The inner wall portion 110 may also be coupled to the outer wall portion 82 and the inner wall portion 112 and extends between the outer wall portion 82 and the inner wall portion (112). In addition, the inner wall portion 110 is substantially parallel to the axis 302, the longitudinal direction.
[29]
Said outer wall portion 90 and the inner wall portion 114 is coupled to the lower plate portion 80, it extends from the lower plate portion 80 to a distant in the first direction. The longitudinal axis of the outer wall portion 90 and the inner wall portion 114 is disposed proximate to the second end of the lower fan 60, the cooling plate 20 (see 302, Fig. 6) It is disposed substantially perpendicular to, and is disposed parallel to and spaced apart from each other. It said outer wall portion 90 and the inner wall portion 114 defines a passage 802 (see Fig. 10, between them).
[30]
The inner wall portion 116 and the outer wall portion 92 is coupled to the lower plate portion 80, it extends from the lower plate portion 80 to a distant in the first direction. The longitudinal axis of the inner wall portion 116 and the outer wall portion 92 is disposed proximate to the second end of the lower fan 60, the cooling plate 20 (see 302, Fig. 6) It is disposed substantially perpendicular to, and is each arranged in the same linear.
[31]
Said outer wall part 94 is coupled with the lower plate portion 80, it extends from the lower plate portion 80 to a distant in the first direction. It said outer wall part 94 is coupled to and extends between the outer wall portion (92, 96), wherein the length is substantially in parallel to extend in the axis direction 302. The
[32]
It said outer wall portion (96, 97, 98) is coupled to the lower plate portion 80 and extends in a first direction away from the lower plate section 80. It said outer wall portion (96, 97, 98) is disposed proximate to the first end of the lower pan 60. It said outer wall portion (96, 98) comprises: (see 302, Fig. 6) the longitudinal axis of the cooling plate 20 substantially extends perpendicular to and is also arranged in the same mutual alignment. It said outer wall portion (97) is disposed and coupled between the outer wall portion (96, 98).
[33]
The inner wall portion 118 is coupled to the lower plate section 80 extends in the first direction far from the lower plate section 80. The inner wall portion 118 is engaged with the outer wall portion 98 and the inner wall portion 116, is disposed between the outer wall portion 98 and the inner wall portion (116). In addition, the inner wall portion 118 is substantially and extend to said longitudinal axis (302) parallel to the axis.
[34]
8, the peripheral I shaft (120, 124, 126, 128) is formed on the outer periphery of the lower fan 60, is substantially disposed in the same plane with each other. In addition, the peripheral I shaft (120, 124, 126, 128) is coupled with the upper plate 62.
[35]
The peripheral I shaft 120, the outer wall portion (82, 83, 84, 96, 96, 98) and coupling and is disposed to be spaced apart from the lower plate section 80, the lower plate portion (80 ) and it is arranged substantially parallel to.
[36]
The peripheral I Shaft 124 is coupled to the outer wall portion 86 and is disposed to be spaced apart from the lower plate section 80, the lower plate portion 80 and is arranged substantially parallel to.
[37]
The peripheral I shaft 126, the outer wall portion (88, 90, 92) and coupling and is disposed a predetermined distance away from the lower plate section 80, the lower plate portion 80 and are arranged substantially parallel to the do.
[38]
The peripheral I Shaft 128 is coupled to the outer wall portion 94 and is disposed a predetermined distance away from the lower plate section 80, the lower plate portion 80 and is arranged substantially parallel to.
[39]
8 through Referring to Figure 10, the triangular-shaped projections (150, 152, 198, 200, 250, 252, 298, 300) and the acute angle trapezoidal projections (154, 156, 158, 160, 174, 176, 178 , 180, 194, 254, 256, 258, 260, 274, 276, 278, 280, 294, 296) is coupled to the lower plate unit 80, far in the first direction from the lower plate section 80 to extend. Further, the triangular-shaped projections (150, 152, 198, 200, 250, 252, 298, 300) and the acute angle trapezoidal projections (154, 156, 158, 160, 174, 176, 178, 180, 194, 254, 256, 258, 260, 274, 276, 278, 280, 294, 296) is directly connected with the top plate 62, is engaged with said top plate (62).
[40]
Referring to Fig. 6, 8 and 10, the triangular protrusions, the acute angle trapezoidal protrusions and description from now on the flow channel associated with said upper half (see Fig. 8) of the bottom pan 60 would.
[41]
The lower plate 80, the side wall (83) and said triangular-shaped projections (150, 152) defines the flow channel (380, see FIG. 10) therebetween.
[42]
The triangular-shaped projections 150 and the acute angle trapezoidal projection 154 and the lower plate portion 80 defines a flow channel (382). And the flow channel 382 is disposed between the outer surface of the triangular shaped protrusion 150 and the acute angle trapezoidal projection 154, the flow channel 380 and the fluid communication (fluidly communicates).
[43]
The triangular-shaped projections 152 and the acute angle trapezoidal projection 156 and the lower plate portion 80 defines a flow channel (384). The flow channel 384 is disposed between the outer surface of the triangular shaped protrusion 152 and the acute angle trapezoidal projection 156, and fluid communication with the said flow channels (380).
[44]
The triangular-shaped projections (150), said outer wall portion (84, 86) and the lower plate portion 80, to define the flow channel 380 and the fluid communication can flow channel (386).
[45]
The triangular-shaped projections (152), said outer wall portion (82), (see 110, Fig. 6), the inner wall portion and the lower plate portion 80, the flow channel 380, and fluid communication possible flow channels ( It defines 388).
[46]
The acute angle trapezoidal projections (154, 156) and the lower plate portion (80) defines a flow channel (390). The flow channel 390 is disposed between the acute angle of the trapezoidal projecting portion (154, 156), and fluid communication with the said flow channels (380).
[47]
The acute angle trapezoidal projections (154, 158) and the lower plate portion (80) defines a flow channel (392). The flow channel 392 is disposed between the outer surface of said acute angle trapezoidal shape (154, 158), and said flow channels (382, 386) and in fluid communication.
[48]
It said acute angle trapezoidal projections (156, 160) and the lower plate portion (80) defines a flow channel (394). The flow channel 394 is disposed between the outer surface of said acute angle trapezoidal projections (156, 160), and said flow channels (384, 388) and in fluid communication.
[49]
The acute angle of the trapezoidal projecting portion (158, 160) and the lower plate portion 80 and defines a flow channel (396). The flow channel 396 is disposed between the outer surface of the acute angle of the trapezoidal projecting portion (158, 160), and said flow channels (392, 394) and in fluid communication.
[50]
The acute angle trapezoidal projection 158, the outer wall portion 86 and the lower plate portion 80 defines a flow channel (398) communicating with said flow channel (382, 386) with flux.
[51]
The acute angle trapezoidal projections 160, the inner wall portion 110 and the lower plate portion 80 defines a flow channel 400 for fluid communication with said flow channel (384, 388) and.
[52]
The acute angle trapezoidal projections (174, 158) and the lower plate portion (80) defines a flow channel (582). The flow channel 582 is disposed between the acute angle of the trapezoidal projecting portion (174, 158), in communication with the flow channel 396 and the fluid.
[53]
It said acute angle trapezoidal projections (160, 176) and the lower plate portion (80) defines a flow channel (584). The flow channel 584 has fluid communication with and disposed between the outer surface of the flow channel 396 of the acute angle of the trapezoidal projecting portion (160, 176).
[54]
The acute angle of the trapezoidal projecting portion (174, 176) and the lower plate portion 80 and defines a flow channel (590). The flow channel 590 is disposed between the acute angle of the trapezoidal projecting portion (174, 176), in communication with the flow channel 396 and the fluid.
[55]
It said acute angle trapezoidal projections (174, 178) and the lower plate portion (80) defines a flow channel (592). The flow channel 592 is disposed between the outer surface of the acute angle of the trapezoidal projecting portion (174, 178), and said flow channels (582, 398) and in fluid communication.
[56]
It said acute angle trapezoidal projections (176, 180) and the lower plate portion (80) defines a flow channel (594). The flow channel 594 is disposed between the outer surface of the acute angle of the trapezoidal projecting portion (176, 180), and said flow channels (584, 400) and in fluid communication.
[57]
Defines the acute angle trapezoidal projections (178, 180) and the lower plate portion 80 has flow channels (596) outside of the flow channel (596) is said acute angle trapezoidal projections (178, 180) It is disposed between the surfaces, in communication with the said flow channels (592, 594) with flux.
[58]
The acute angle trapezoidal projection 178, the outer wall portion 86 and the lower plate portion 80 defines a flow channel 598 for fluid communication with said flow channel (582, 398) and.
[59]
The acute angle trapezoidal projections 180, the inner wall portion 110 and the lower plate portion 80 and defines a flow channel (600) communicating with said flow channel (584, 400) with flux.
[60]
The acute angle trapezoidal projections (194, 178) and the lower plate portion (80) defines a flow channel (782). The flow channel 782 is disposed between the acute angle of the trapezoidal projecting portion (194, 178), in communication with the flow channel 596 and the fluid.
[61]
The acute angle of the trapezoidal projecting portion (180, 196) and the lower plate portion (80) defines a flow channel 784. The flow channel 784 has fluid communication with and disposed between the outer surface of the flow channel 596 of the acute angle of the trapezoidal projecting portion (180, 196).
[62]
It said acute angle trapezoidal projections (194, 196) and the lower plate portion (80) defines a flow channel (790). The flow channel 790 is arranged on the acute angle between the trapezoidal projections (194, 196), in communication with the flow channel 596 and the fluid.
[63]
It said acute angle trapezoidal projections (194, 198) and the lower plate portion (80) defines a flow channel 792. The flow channel 792 is disposed between an outer surface of the acute angle of the trapezoidal projecting portion (194, 198), and said flow channels (782, 598) and in fluid communication.
[64]
It said acute angle trapezoidal projections (196, 200) and the lower plate portion (80) defines a flow channel (794). The flow channel 794 is disposed between the outer tilt stand of the acute angle of the trapezoidal-shaped projections (196, 200), and said flow channels (784, 600) and in fluid communication.
[65]
The acute angle trapezoidal projection (198), said outer wall portions (86, 88) and the lower plate portion (80) defines a flow channel (798) for fluid communication with said flow channel (782, 598) and.
[66]
The acute angle trapezoidal projections 200, the inner wall portion (see 110, 112, Fig. 6) and the lower plate portion 80 has flow channels (800) in communication with said flow channel (784, 600) and fluid It defines.
[67]
It said acute angle trapezoidal projections (198, 200) and the lower plate portion (80) defines a flow channel 801. The flow channel 801 is disposed between the acute angle of the trapezoidal projecting portion (198, 200), and said flow channels (792, 794, 798, 800) and in fluid communication.
[68]
It said outer wall portion 90 and the inner wall portion 114 and the lower plate portion (80) defines a flow channel (802). The flow channel 802 is disposed between the outer wall portion 90 and the inner wall portion 114, the flow channels (792, 794, 798, 800) and in fluid communication.
[69]
Referring to Fig. 6, 8 and 10, the triangular protrusions, the acute angle trapezoidal protrusions and description from now on the flow channel associated with the lower half (see Fig. 8) of the bottom pan 60 would.
[70]
Of the lower plate portion 80, the side wall (97) and said triangular-shaped projections (250, 252) defines the flow channel 480 therebetween.
[71]
The triangular-shaped projections 250 and the acute angle trapezoidal projection 254 and the lower plate portion 80 defines a flow channel (482). And the flow channel 482 is in fluid communication with the triangular shape is disposed between the outer surface of the protrusion 250 and the acute angle trapezoidal projection 254, the flow channel 480.
[72]
The triangular-shaped projections 252 and the acute angle trapezoidal projection 256 and the lower plate portion 80 defines a flow channel (484). The flow channel 484 is disposed between an outer surface of the triangular shaped protrusion 252 and the acute angle trapezoidal-shaped projections, and in fluid communication with said flow channel (480).
[73]
The triangular-shaped projections (250), said outer wall portion (94, 96) and the lower plate portion (80) defines a flow channel (486) communicating with the flow channel 480 and the fluid.
[74]
The triangular-shaped projections (252), said outer wall portion (98), said inner wall portion (118, see FIG. 6) and the lower plate portion 80 has flow channels (488 in communication with the flow channel 480 and fluid ) defines.
[75]
It said acute angle trapezoidal projections (254, 256) and the lower plate portion (80) defines a flow channel (490). The flow channel 490 is disposed between the acute angle of the trapezoidal projecting portion (254, 256), in communication with the flow channel 480 and the fluid.
[76]
It said acute angle trapezoidal projections (254, 258) and the lower plate portion (80) defines a flow channel (492). The flow channel 492 is disposed between an outer surface of the acute angle of the trapezoidal projecting portion (254, 258), and said flow channels (482, 486) and in fluid communication.
[77]
It said acute angle trapezoidal projections (256, 260) and the lower plate portion (80) defines a flow channel (494). The flow channel 494 is disposed between an outer surface of the acute angle of the trapezoidal projecting portion (256, 260), and said flow channels (484, 488) and in fluid communication.
[78]
It said acute angle trapezoidal projections (258, 260) and the lower plate portion (80) defines a flow channel (496). The flow channel 496 is disposed between an outer surface of the acute angle of the trapezoidal projecting portion (258, 260), and said flow channels (492, 494) and in fluid communication.
[79]
The acute angle trapezoidal projection 258, the outer wall portion 94 and the lower plate portion 80 defines a flow channel (498) for fluid communication with said flow channel (482, 486) and.
[80]
The acute angle trapezoidal projections 260, the inner wall portion 118 and the lower plate portion 80 defines a flow channel (500) communicating with said flow channel (484, 488) with flux.
[81]
It said acute angle trapezoidal projections (274, 258) and the lower plate portion (80) defines a flow channel (682). The flow channel 682 is disposed between the acute angle of the trapezoidal projecting portion (274, 258), in communication with said flow channel (496) with flux.
[82]
It said acute angle trapezoidal projections (260, 276) and the lower plate portion (80) defines a flow channel (684). The flow channel 684 has fluid communication with and disposed between the outer surface of the flow channel 496 of the acute angle of the trapezoidal projecting portion (260, 276).
[83]
It said acute angle trapezoidal projections (274, 276) and the lower plate portion (80) defines a flow channel (690). The flow channel 690 is disposed between the acute angle of the trapezoidal projecting portion (274, 276), and fluid communication with the said flow channels (496).
[84]
It said acute angle trapezoidal projections (274, 278) and the lower plate portion (80) defines a flow channel (692). The flow channel 692 is disposed between the outer surface of said acute angle trapezoidal projections (274, 278), in communication with the said flow channels (682, 498) with flux.
[85]
It said acute angle trapezoidal projections (276, 280) and the lower plate portion (80) defines a flow channel (694). The flow channel 694 is disposed between an outer surface of the acute angle of the trapezoidal projecting portion (276, 280), and said flow channels (684, 500) and in fluid communication.
[86]
It said acute angle trapezoidal projections (278, 280) and the lower plate portion (80) defines a flow channel (696). The flow channel 696 is disposed between an outer surface of the acute angle of the trapezoidal projecting light (278, 280), in communication with the said flow channels (692, 694) with flux.
[87]
The acute angle trapezoidal projection 278, the outer wall portion 94 and the lower plate portion 80 defines a flow channel (698) for fluid communication with said flow channel (682, 498) and.
[88]
The acute angle trapezoidal projections 280, the inner wall portion 118 and the lower plate portion 80 defines a flow channel 700 for fluid communication with said flow channel (684, 500) and.
[89]
The acute angle trapezoidal projections (294, 278) and the lower plate portion (80) defines a flow channel (882). The flow channel 882 is disposed between the acute angle of the trapezoidal projecting portion (294, 278), in communication with said flow channel (696) with flux.
[90]
The acute angle trapezoidal projections (280, 296) and the lower plate portion (80) defines a flow channel (884). The flow channel 884 has fluid communication with and disposed between the outer surface of the flow channel 696 of the acute angle of the trapezoidal projecting portion (280, 296).
[91]
It said acute angle trapezoidal projections (294, 296) and the lower plate portion (80) defines a flow channel (890). The flow channel 890 is disposed between the acute angle of the trapezoidal projecting portion (294, 296), and fluid communication with the said flow channels (696).
[92]
It said acute angle trapezoidal projections (294, 298) and the lower plate portion (80) defines a flow channel (892). The flow channel 892 is disposed between an outer surface of the acute angle of the trapezoidal projecting portion (294, 298), and said flow channels (882, 698) and in fluid communication.
[93]
The acute angle trapezoidal projection 296 and the triangular shaped projection 300 and the lower plate portion 80 defines a flow channel (894). Said flow channel (894) is disposed between the outer surface of said acute angle trapezoidal projection 296 and the triangular-shaped projections (300), in communication with the said flow channels (884, 700) with flux.
[94]
The acute angle trapezoidal projection (298), said outer wall portions (94, 92) and the lower plate portion (80) defines a flow channel (898) for fluid communication with said flow channel (882, 698) and.
[95]
The triangular-shaped projections (300), said inner wall portions (see 116, 118, Fig. 6) and a flow channel 900 which communicates the lower plate unit 80 to said flow channel (884, 700) and fluid define.
[96]
It said triangular-shaped projections (298, 300) and the lower plate portion (80) defines a flow channel 901. The flow channel 901 is disposed between the triangular-shaped projections (298, 300), and fluid communication with said flow channels (892, 894, 898, 900) and said flow channel (802).
[97]
4 and 7, the top plate (62) defines a closed interior region 67 in between is coupled to the lower fan 62, they. In this embodiment, the top plate 62 is provided with, heat conductive material such as aluminum as, for example.
[98]
The tubular inlet port 64 is the flow pattern of the first cooling zone (351) shown in the interior region (67) (and Fig. 8 is coupled to the top plate 62, the cooling plate 20 370) and be in fluid communication. The tubular inlet port 64 receives the refrigerant from the refrigerant source (not shown) is fluidly (fluidly) coupled to the tubular inlet port 64, to the cooling plate 20 is the battery module (40, 42, 44) the inner area to be cooled (67) (and the channel pattern 380, and guides the coolant into).
[99]
The tubular outlet port 66 is the flow pattern of the first cooling zone (351) shown in the interior region (67) (and Fig. 8 is coupled to the top plate 62, the cooling plate 20 372) and be in fluid communication. The tubular exit port 66 returns to the coolant source (not shown) coupled to receive the coolant from the interior region (67) with said tubular outlet port 66 to the coolant fluid.
[100]
Referring to Figure 8, 9, 10 and 14, the first, second, and third cooling zone of the cooling plate 20 for cooling of the battery modules 40, 42 and 44 , respectively, it will be described from now on, for 351, 352, 353.
[101]
The first cooling zone (351) is a temperature of the battery module 40 below, and placed directly into, the plane within ° C 1 of the first temperature level (see 1000, Fig. 3) to the battery module 40 in accordance It is configured such that it can be maintained. And the first cooling zone (351) comprises a substantially flow path pattern having a shape similar to each other (370, 372, see Fig. 9). It said flow path pattern (370, 372) are separated from each other by the inner wall portions (see 110, 118, Fig. 8). 14, the temperature variation scheme acquired from the heat transfer modeling software is started. The temperature variation scheme is by the flat of 1000 a having a temperature change area 1010, the temperature of the battery module 40, the flow path patterns are measured along (370, 372) in the battery module 40 1 ° C of the first temperature level is shown to be maintained within.
[102]
8 through Referring to Figure 10, the channel pattern 370 includes the flow channel (380, 382, ​​384, 386, 388, 390, 392, 394, 398, 400), the first temperature level keeps the temperature at least of the first half of the cross-sectional area of ​​said battery modules (40) obtained along a plane (see 1000, Fig. 3) to within 1 ° C. The first half of the cross-sectional area of ​​the battery module 40 is parallel to the plane coincides 1000.
[103]
The channel pattern 372, the flow channels comprising a (480, 482, 484, 486, 488, 490, 492, 494, 496, 498, 500), the plane within ° C 1 of the first temperature level keeps the temperature at least of the second half of the cross-sectional area of ​​said battery modules (40) obtained according to (1000, see FIG. 3). The second half of the cross-sectional area of ​​the battery module 40 is parallel to the plane coincides 1000.
[104]
The second cooling zone (352) is the battery module 42 below is directly arranged in the first said plane within ° C 1 of the first temperature level (see 1000, Fig. 3) to the said battery module (42 acquired according ) consists of a makes it possible to maintain the temperature. The second cooling zone (352) comprises the flow path pattern having a substantially similar shape to each other (570, 572, see Fig. 9). It said flow path pattern (570, 572) are separated from each other by the inner wall portions (see 110, 118, Fig. 8). 14, the temperature variation scheme acquired from the heat transfer modeling software is started. The temperature of the battery module 42 by the the flow path pattern (570, 572) the temperature scheme has the plane 1000 is a temperature change area 1012, measured along the inside of the battery module 42, 1 ° C of the first temperature level is shown to be maintained within.
[105]
When 8 to refer to FIG. 10, the channel pattern 570 comprises the flow channel (396, 398, 400, 582, 584, 590, 592, 594, 596, 598, 600), said first temperature level of at least maintains the temperature of the first half of the cross-sectional area of ​​1 ° C (see 1000, Fig. 3) also in the plane within the above-mentioned battery modules 42 in accordance with acquisition. The first half of the cross-sectional area of ​​the battery module 42 is parallel to the plane coincides 1000.
[106]
The channel pattern 572, the flow channels (496, 498, 500, 682, 684, 690, 692, 694, 696, 698, 700) to include, and the plane within ° C 1 of the first temperature level keeps the temperature at least of the second half of the cross-sectional area of ​​said battery modules (42) obtained according to (1000, see FIG. 3). The second half of the cross-sectional area of ​​the battery module 42 is parallel to the plane coincides 1000.
[107]
The third cooling zone (354) is the battery module 44 below is directly arranged in the first (see 1000, Fig. 3), the plane within ° C 1 of the temperature level of the battery module obtained in accordance with the (44 ) consists of a makes it possible to maintain the temperature. The second cooling zone 354 comprises the flow path pattern having a substantially similar shape to each other (see 770, 772, Fig. 9). It said flow path pattern (770, 772) are separated from each other by the inner wall portions (see 110, 118, Fig. 8). 14, the temperature variation scheme acquired from the heat transfer modeling software is started. The temperature of the battery module 44 by the the flow path pattern (770, 772) the temperature scheme has the plane 1000 is a temperature change area 1014, measured along the inside of the battery module 44, 1 ° C of the first temperature level is shown to be maintained within.
[108]
When 8 to refer to FIG. 10, the channel pattern 770 comprises the flow channel (596, 598, 600, 782, 784, 790, 792, 794, 796, 798, 800, 802), wherein the within 1 ° C of the first temperature level is maintained for at least the temperature of the first half of the cross-sectional area of ​​said battery modules (44) obtained along a plane (see 1000, Fig. 3). The first half of the cross-sectional area of ​​the battery module 44 is parallel to the plane coincides 1000.
[109]
The channel pattern 772, the flow channels comprising a (796, 798, 700, 882, 884, 890, 892, 894, 896, 898, 900), the plane within ° C 1 of the first temperature level keeps the temperature at least of the second half of the cross-sectional area of ​​said battery modules (44) obtained according to (1000, see FIG. 3). The second half of the cross-sectional area of ​​the battery module 44 is parallel to the plane coincides 1000.
[110]
In FIG When 7 to 9, the operation, the refrigerant in the channel pattern 370, the second cooling zone (352) of the pieces to the tubular inlet port 64, the first cooling zone (351) the channel pattern 570, the channel pattern 770 of the third cooling zone 353, the flow channel 802, the channel pattern 772 of the third cooling zone 353 and the second cooling It flows in the flow path pattern 572, the channel pattern 372 of the first cooling zone 351 in area 352, out Thereafter, the tubular exit port 66.
[111]
1 to 3, wherein the battery modules (40, 42, 44) is disposed on the upper surface of the cooling plate 20.
[112]
The battery module 40 includes a plurality of battery cells (1300) and a plurality of thermally conductive plate member 1302. The plurality of battery cells 1300 (see Fig. 8 302,) the longitudinal axis of the cooling plate 20 and the refrigerant flow direction normal to the lithium disposed in each direction are ion pouch cell battery. The plurality of thermally conductive plate member 1302 of the plurality of battery cells (1300) and the cooling plate 20, both directly to from the battery module 40 to deliver the heat energy to the cooling plate 20 in contact with. The lower surface 1304 of the battery module 40 is parallel to the plane (1000).
[113]
The battery module 42 includes a plurality of battery cells (1400) and a plurality of thermally conductive plate member 1402. The plurality of battery cells 1400 (see Fig. 8 302,) the longitudinal axis of the cooling plate 20 and the refrigerant flow direction normal to the lithium disposed in each direction are ion pouch cell battery. The plurality of thermally conductive plate member 1402 of the plurality of battery cells (1400) and the cooling plate 20, both directly to from the battery module 42 to deliver the heat energy to the cooling plate 20 in contact with. The lower surface 1404 of the battery module 42 is parallel to the plane (1000).
[114]
The battery module 44 includes a plurality of battery cells (1500) and a plurality of thermally conductive plate member 1502. The plurality of battery cells 1500 (see Fig. 8 302,) the longitudinal axis of the cooling plate 20 and the refrigerant flow direction normal to the lithium disposed in each direction are ion pouch cell battery. The plurality of thermally conductive plate member 1502 has a plurality of battery cells (1500) and the cooling plate 20, both directly to from the battery module 44 to deliver the heat energy to the cooling plate 20 in contact with. The lower surface 1504 of the battery module 44 is parallel to the plane (1000).
[115]
The battery pack according to the present embodiment described above provides a substantial advantage over other battery packs. In particular, the battery pack includes a cooling plate, the cooling plate, the first temperature level of degrees 1 can also maintain at least the temperature of the first half of the cross-sectional area of ​​the first battery module to the acquired along a plane in the a first flow path pattern and Celsius one of the first temperature level which is determined by the shape and size in a shape that can maintain at least the temperature of the second half of the cross-sectional area of ​​the first battery module in accordance with the said plane, and a second flow path pattern determined by the size.
[116]
Or more, but the claimed invention described in detail in connection with only a limited number of embodiments, the invention is also understood that it is not limited to such disclosed embodiments. FIG. Rather, the claimed invention may be modified to include the equivalent arrangements corresponding to the scope of the invention but not described above modification, change any number of, or substitution. Also, have been described various embodiments of the claimed invention, aspects of the invention are to be understood also to include only some of the described embodiments. Accordingly, the claimed invention is a doemeun of course should not be considered as being limited by the foregoing description.

Claims
[Claim 1]
In the battery pack, a battery module having a lower surface and a first plane, the first plane is the battery modules in parallel to the bottom surface and extending along said battery module; And mutual coupling and have a lower pan and an upper plate extending along the longitudinal axis, and wherein the lower surface of the battery module disposed on the top plate, said bottom pan and said top plate to define an interior region therebetween, cooling plate; includes, the lower fan, has a first cooling zone with a first and a second flow path pattern for receiving a refrigerant therein, the first flow path pattern, the degrees one of the first temperature level is also is determined in shape and size so as to maintain at least the temperature of the first half of the cross-sectional area of ​​the battery module in the second flow path pattern is in ° C 1 of the first temperature level of the cross-sectional area of ​​the battery modules It is determined in shape and size to at least maintaining the temperature of the second half, the second cross-sectional area of ​​the first half and the battery modules in the cross-sectional area of ​​the battery modules Half of the battery pack, characterized in that a match with the first plane and parallel.
[Claim 2]
The method of claim 1, wherein the lower fan is coupled to the top plate having a first and second triangular-shaped projections in contact with said top plate, said first and second triangular-shaped projections are, within the interior region has a first flow channel therebetween, said first flow channel, the battery pack, characterized in that for defining a portion of the first flow path pattern.
[Claim 3]
The method of claim 2, wherein the first cooling zone further comprises a first and second acute angle trapezoidal projection is coupled is coupled to the top plate, the first and second acute angle trapezoidal projecting portion of the lower fan is the a first and a second flow channel therebetween which flow channel fluid communication with the said first acute angle trapezoidal protrusion extending into the outer circumference of the first acute angle trapezoidal projection in communication with the first flow channel and the fluid the second, the second acute angle trapezoidal projection has a fourth flow channel extending to the outer circumference of the second acute angle trapezoidal projection in communication with the first flow channel and the fluid 3 has a flow channel, the third and fourth flow channels includes a battery pack, characterized in that for defining a portion of the first flow path pattern.
[Claim 4]
The method of claim 3, wherein the second flow channel, substantially in the battery pack, characterized in that extending parallel to said longitudinal axis.
[Claim 5]
The method of claim 3, wherein the first cooling zone of the lower fan further comprises a third and fourth acute angle trapezoidal projection is engaged with said top plate is coupled to the interior region, the third and the fourth acute angle trapezoidal shaped protrusion is flexible in the second, the third and the fourth has a fifth flow channel therebetween in fluid communication with the flow channel, said fifth flow channel, characterized in that for defining a portion of the first flow path pattern battery pack.
[Claim 6]
The method of claim 1, wherein the battery module includes a plurality of pouch battery cells being disposed in a first direction perpendicular to the longitudinal axis; the battery pack further comprises a.
[Claim 7]
The method of claim 1 wherein the first flow path pattern is a battery pack, characterized in that has a shape substantially similar to the shape of the second flow path pattern.
[Claim 8]
The method of claim 1, wherein the bottom plate, the longitudinal direction has an inner wall portion that is elongated along an axis, the inner wall portion, separating the first flow path pattern and said second flow path pattern and the and the first flow path pattern the battery pack is arranged between the second flow path pattern.
[Claim 9]
The method of claim 1, wherein the top plate is engaged with the first flow path pattern with a tubular inlet port which is in fluid communication; battery pack further comprising a.
[Claim 10]
10. The method of claim 9, combined with the top plate and the second flow path in communication with the tubular outlet in a pattern with the fluid port; battery pack further comprising a.