Cooling case assembly and battery system assembly having same

Abstract

Disclosed are a cooling case assembly and a battery system assembly having same. The battery system assembly may comprise: a battery module assembly; a case; a mounting bracket; and a cooling block. The case may accommodate the battery module assembly. The mounting bracket may be fastened to the case. The cooling block may be fitted between the case and the mounting bracket and may face the battery module assembly.

Description

Cooling case assembly and battery system assembly equipped with the same

[0001] The present invention relates to a battery system assembly having a cooling case assembly.

[0002]

[0003] In general, secondary batteries are widely used as an energy source for mobile devices. Secondary batteries are also attracting attention as a power source for battery electric vehicles (BEVs) and hybrid electric vehicles (HEVs).

[0004] The basic unit of a rechargeable battery is the battery cell. While small mobile devices use one or two battery cells, medium to large devices such as automobiles utilize battery pack assemblies. A battery pack assembly achieves high output and large capacity by electrically connecting multiple battery module assemblies. A single battery module assembly consists of multiple connected battery cells.

[0005] Components such as the battery pack assembly, power relay, and cooling block are installed in the case assembly to form the battery system assembly. The battery system assembly can be mounted on the vehicle chassis. The cooling block receives heat from the heat-generating battery module (pack) assembly and discharges it into the atmosphere along with the cooling fluid.

[0006]

[0007] When joining the cooling block to the case via welding or bolting, the case and the cooling block are manufactured from the same material to prevent galvanic corrosion. As a result, since both the cooling block and the case are made of expensive materials with high thermal conductivity, there is a problem of increased material costs. Furthermore, the airflow channels formed inside the cooling block may be damaged during the welding and bolting process.

[0008] One objective of the present invention, devised in consideration of these problems, is to provide a battery system assembly and a case assembly used therein, which can eliminate direct fastening operations such as welding and bolting to the cooling block while mounting the cooling block to the outside of the case.

[0009] Another objective of the present invention is to provide a battery system assembly and a case assembly used therein, which can structurally eliminate the risk of galvanic corrosion between the case and the cooling block while using different materials.

[0010]

[0011] A battery system assembly according to one aspect of the present invention for realizing the above-mentioned problem may include: a battery module assembly; a case accommodating the battery module assembly; a mounting bracket fastened to the case; and a cooling block sandwiched between the case and the mounting bracket and facing the battery module assembly.

[0012] Here, the cooling block includes a cooling plate formed to receive a cooling fluid, the case and the mounting bracket are formed of a first material and surface-treated, and the cooling plate may be formed of a second material different from the first material.

[0013] Here, the first material has higher strength than the second material, and the second material may have higher thermal conductivity than the first material.

[0014] Here, the mounting bracket may include a support area facing the cooling block and supporting the cooling block; and a fastening area connected to form a stepped structure with respect to the support area and fastened to the case.

[0015] Here, the mounting bracket may include at least one of a perimeter bracket extending to cover an edge area along the perimeter direction of the cooling block; and a cross bracket extending across the main surface of the cooling block.

[0016] Here, the cross bracket may include a first cross member; and a second cross member positioned to intersect with the first cross member.

[0017] Here, the cooling block includes a cooling plate formed to allow a cooling fluid to flow, corresponding to the battery module assembly; and a protruding connection portion protruding from the cooling plate and connecting a supply line and a return line of the cooling fluid to the cooling plate, and the mounting bracket may be an open loop with a portion corresponding to the protruding connection portion removed.

[0018] Here, the cooling block includes a cooling plate formed to allow a cooling fluid to flow, corresponding to the battery module assembly; and a protruding connection portion protruding from the cooling plate and connecting a supply line and a return line of the cooling fluid to the cooling plate, and the mounting bracket may include a first portion corresponding to the protruding connection portion; and a second portion connected in a stepped structure to the first portion and covering an edge area along the periphery of the cooling plate.

[0019] Here, the first part and the second part can form a closed loop.

[0020] Herein, the system further includes a fastening unit for fastening the mounting bracket to the case, and the fastening unit may include a bolt that is fastened to the case by penetrating the first part and the protruding connecting part.

[0021] Herein, a fastening unit for fastening the mounting bracket to the case is further included, and the fastening unit may include a bolt for detachably fastening the mounting bracket to the case.

[0022] Here, a sealing unit disposed between the case and the cooling block may be further included.

[0023] Here, the case comprises a lower case that supports the battery module assembly; and an upper case that is coupled to the lower case and covers the battery module assembly, and the mounting bracket is coupled to at least one of the lower case and the upper case, and the cooling block may also be provided to correspond to at least one of the lower case and the upper case in correspondence with the mounting bracket.

[0024] A cooling case assembly according to one aspect of the present invention may include: a case having an opening and a peripheral portion defining the opening; a mounting bracket fastened to the peripheral portion; and a cooling block positioned between the peripheral portion and the mounting bracket and positioned to face a battery module assembly accommodated in the case.

[0025] Here, the case may further include a bridge connected to the periphery so as to cross the opening.

[0026] Here, the opening may be formed to allow a thermal connection between the cooling block and the battery module assembly.

[0027] Here, the cooling block includes a cooling plate formed to receive a cooling fluid, the case and the mounting bracket are formed of a first material and surface-treated, and the cooling plate may be formed of a second material different from the first material.

[0028] Here, the first material has higher strength than the second material, and the second material may have higher thermal conductivity than the first material.

[0029] Here, the mounting bracket may include a perimeter bracket that extends to cover an edge area along the perimeter direction of the cooling block.

[0030] Here, a protective pad disposed between the cooling block and the mounting bracket may be further included.

[0031]

[0032] According to the cooling case assembly and battery system assembly equipped with the same configured as described above, a mounting bracket is fastened to a case accommodating a battery module assembly, and a cooling block is sandwiched between the case and the mounting bracket, thereby eliminating direct fastening operations such as welding or bolting of the cooling block. As a result, damage to the cooling block during the mounting process can be prevented.

[0033] By forming the case and mounting bracket, which are directly connected to each other, from a surface-treated homogeneous material, and forming the cooling plate of the cooling block sandwiched between them from a heterogeneous material, the materials of each component can be varied as needed while eliminating concerns about galvanic corrosion. By manufacturing the case from a relatively low-cost material compared to the cooling block, the manufacturing cost of the battery system assembly can be significantly reduced.

[0034] When the cooling block is mounted externally to the case, concerns that the battery module assembly may be affected by leakage of the cooling water can be eliminated. Additionally, the structural reduction in power storage density and decreased design freedom caused by the cooling block occupying part of the case space can also be eliminated.

[0035]

[0036] FIG. 1 is an assembled perspective view showing a battery system assembly according to one embodiment of the present invention.

[0037] Figure 2 is an exploded perspective view of the cooling case assembly of Figure 1.

[0038] Figure 3 is a cut-away perspective view of a part of the cooling case assembly of Figure 1.

[0039] FIG. 4 is a cut-away perspective view showing a different form of connection between the cooling block and the mounting bracket in FIG. 3.

[0040] FIG. 5 is an assembled perspective view showing one modified example of the cooling case assembly of FIG. 2.

[0041] FIG. 6 is an assembly perspective view showing another variation of the cooling case assembly of FIG. 2.

[0042] FIG. 7 is an assembly perspective view showing another variation of the cooling case assembly of FIG. 2.

[0043] FIG. 8 is an assembled perspective view showing a battery system assembly according to another embodiment of the present invention.

[0044] FIG. 9 is a partially exploded perspective view of the battery system assembly of FIG. 8.

[0045]

[0046] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0047] The present invention is not limited to the embodiments disclosed below, but can be modified and implemented in various different forms. The embodiments provided are merely intended to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention. Accordingly, the present invention should be understood not to be limited to the embodiments disclosed below, but to include all modifications, equivalents, and substitutions that fall within the technical spirit and scope of the present invention, as well as substituting or adding the configuration of any one embodiment with the configuration of another embodiment.

[0048] The attached drawings are intended only to facilitate understanding of the embodiments disclosed in this specification, and the technical concept disclosed in this specification is not limited by the attached drawings; rather, it should be understood that they include all modifications, equivalents, and substitutions that fall within the spirit and technical scope of the invention. In the drawings, components may be depicted as being exaggeratedly large or small in size or thickness for the sake of convenience of understanding, but the scope of protection of the invention should not be interpreted restrictively as a result thereof.

[0049] The terms used in this specification are used merely to describe specific embodiments or examples and are not intended to limit the invention. Furthermore, singular expressions include plural expressions unless the context clearly indicates otherwise. Terms such as "includes" or "consists of" in this specification are intended to indicate the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in this specification. That is, terms such as "includes" or "consists of" in this specification should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0050] Terms including ordinal numbers, such as first, second, etc., may be used to describe various components, but said components are not limited by said terms. These terms are used solely for the purpose of distinguishing one component from another.

[0051] When it is stated that one component is "connected / communicated" or "connected" to another component, it should be understood that while it may be directly connected / communicated or connected to that other component, there may also be other components in between. On the other hand, when it is stated that one component is "directly connected / communicated" or "directly connected" to another component, it should be understood that there are no other components in between.

[0052] When it is stated that one component is "above" or "below" another component, it should be understood that it is not only placed directly above the other component, but that another component may also exist in between.

[0053] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which the present invention pertains. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an ideal or overly formal sense unless explicitly defined in this application.

[0054] The battery system assembly in the embodiment may generally have the shape of a rectangular prism. Accordingly, among the outer surfaces of the battery system assembly, the upper surface in the drawing is referred to as the top surface, and the lower surface as the bottom surface. Furthermore, the surface visible from the left side in the drawing is referred to as the front surface, and the surface visible from the right side in the drawing is referred to as the rear surface. The remaining two sides are referred to as the left side located to the left of the front surface and the right side located to the right. The direction connecting the front surface and the rear surface may be referred to as the length direction, and the direction connecting the top surface and the bottom surface may be referred to as the height direction. The direction connecting the left side and the right side may be referred to as the width direction. The length direction, the width direction, and the height direction may have a perpendicular relationship with each other.

[0055] FIG. 1 is an assembled perspective view showing a battery system assembly according to one embodiment of the present invention.

[0056] Referring to the drawing, the battery system assembly (100) may include a case (110), a battery module assembly (130), and a cooling block (150).

[0057] The case (110) can generally form a rectangular prism-shaped receiving space. The case (110) may have a bottom and walls. The case (110) illustrated in the drawing may specifically be a lower case. The lower case may be covered by an upper case (not shown). The case (110) may be made of a first material, for example, steel. The steel offers the advantage of high strength while being inexpensive. The steel may be coated for surface treatment, for example, to prevent oxidation.

[0058] A battery module assembly (130) can be accommodated in the above-mentioned space. The battery module assembly (130) is formed by electrically connecting a plurality of battery cells. A plurality of battery module assemblies (130) can also be electrically connected to form a battery pack assembly. For convenience, the following description will be based on the battery module assembly (130), which is the basic unit of the two.

[0059] A cooling block (150) may be positioned facing the battery module assembly (130) to cool it. The cooling block (150) may be located on the lower side of the battery module assembly (130) along the height direction (H). Specifically, the cooling block (150) may be mounted on the outside of the case (110). By installing the cooling block (150) on the outside of the case (110), the risk of cooling fluid leaking into the case (110) may be eliminated. Additionally, power storage density can be increased within the limited space of the case (110), and design freedom can also be increased. The cooling block (150) may be made of a second material with high thermal conductivity, for example, aluminum. Although the aluminum is more expensive than the steel, it has superior thermal conductivity, providing an advantage in heat dissipation.

[0060] The mounting structure of the cooling block (150) for the case (110) is described with reference to FIGS. 2 and FIGS. 3. FIGS. 2 is an exploded perspective view of the cooling case assembly of FIGS. 1, and FIGS. 3 is a cutaway perspective view of a part of the cooling case assembly of FIGS. 1.

[0061] Referring further to the drawings, the bottom of the case (110) may have an opening (111) and a periphery (113). The opening (111) may provide a passage for the battery module assembly (130) to face the cooling block (150). The battery module assembly (130) may be thermally connected to the cooling block (150) through the opening (111). A thermal interface material (TIM) may be involved in such thermal connection. The periphery (113) may be a portion defining the opening (111). The periphery (113) may generally have a plate shape. To compensate for the weakening of the strength of the periphery (113) due to the formation of the opening (111), a bridge (115) may be formed. The bridge (115) is arranged to cross the opening (111) and can be connected to the periphery (113).

[0062] The cooling block (150) may be positioned to face the bottom surface of the case (110), specifically the periphery (113). The cooling block (150) may have a cooling plate (151) and a protruding connection (155). The cooling plate (151) is a part corresponding to the battery module assembly (130), and a channel through which a cooling fluid flows may be formed inside the cooling plate (151). The cooling plate (151) may be in the form of two or more plates stacked along the height direction (H). The channel may be formed by pressing at least one of the two or more plates into a concave shape. The protruding connection (155) is a part protruding from the cooling plate (151) and may be a part that connects the supply line and return line of the cooling fluid to the cooling plate (151). The protruding connection (155) may be formed to protrude to the side of the cooling plate (151).

[0063] The mounting bracket (170) is configured to be attached to the case (110), specifically the periphery (113). The mounting bracket (170) may be located on the lower side of the case (110) and the cooling block (150) along the height direction (H). By attaching the mounting bracket (170) to the periphery (113), the cooling block (150) may be sandwiched between the periphery (113) and the mounting bracket (170). The mounting bracket (170) may be made of the same material as the case (110) (the first material mentioned above). The mounting bracket (170) may also be surface-treated steel.

[0064] The mounting bracket (170) may have a perimeter bracket (171) that extends to cover the edge area along the perimeter direction of the cooling block (150). The perimeter bracket (171) may form an open loop with the portion corresponding to the protruding connection (155) removed. The perimeter bracket (171) may be an open loop that is generally square, corresponding to the shape of the cooling plate (151). Because the mounting bracket (170) has the loop shape, most of the area of ​​the cooling plate (151) is exposed to the atmosphere, so that it is hardly restricted by the mounting bracket (170) during heat dissipation.

[0065] The perimeter bracket (171) may have a support area (171a) and a fastening area (171b). The support area (171a) is a portion facing the cooling block (150) and may support the cooling block (150) by contacting the cooling block (150). The fastening area (171b) is a portion facing the periphery (113) and may be fastened to the periphery (113). The support area (171a) and the fastening area (171b) may be located at different levels along the height direction (H) to form a stepped structure.

[0066] The fastening area (171b) may be fastened to the periphery (113) via a fastening unit (not shown). The fastening unit may be a welded portion between the fastening area (171b) and the periphery (113). Alternatively, the fastening unit may be an element that detachably fastens the fastening area (171b) to the periphery (113), such as a bolt or a rivet. If the fastening area (171b), the periphery (113), and furthermore the bolt are also formed from the first material, the problem of galvanic corrosion resulting from the fastening between them can be structurally prevented. Since the cooling plate (151) is not welded or bolted to the case (110) and the mounting bracket (170), it is free from the problem of galvanic corrosion caused by direct contact between dissimilar materials.

[0067] If there is a possibility that moisture or foreign substances may penetrate into the case (110) through the gap between the periphery (113) and the cooling block (150), a sealing unit (190) may be additionally employed. The sealing unit (190) may be located between the periphery (113) and the edge region of the cooling plate (151). The sealing unit (190) may be a gasket having a loop shape corresponding to the edge region. The gasket may be formed of, for example, rubber or Teflon.

[0068] In an alternative embodiment, the cooling block (150) may be located inside the case (110). In that case, the protruding connecting part (155) connected to the cooling plate (151) may be positioned to extend outside the case (110). To this end, a through hole through which the protruding connecting part (155) passes may be formed in the case (110). As a result, the problem of the cooling fluid leaking into the case (110) may not occur as the protruding connecting part (155), etc., is positioned inside the case (110).

[0069] In an alternative embodiment, the case (110) and the cooling block (150) may be formed of the same material. Even in that case, the cooling block (150) may be sandwiched between the case (110) and the mounting bracket (170). As a result, the cooling block (150) may not be subjected to heat from welding or tapping for bolting.

[0070] FIG. 4 is a cut-away perspective view showing a different form of connection between the cooling block and the mounting bracket in FIG. 3.

[0071] Referring to the drawing, the battery system assembly (100) may further be provided with a protective pad (195) disposed between a cooling block (150) and a mounting bracket (170) {specifically, a support area (171a)}. The protective pad (195) may be made of a synthetic resin material and may have electrical insulation properties. The protective pad (195) may be made of, for example, a foamed rubber-based or polymer-based material. The protective pad (195) may have a loop shape corresponding to the mounting bracket (170).

[0072] As the protective pad (195) is interposed between the support area (171a) and the cooling block (150), the risk of galvanic corrosion occurring between the support area (171a) and the cooling block (150) due to the coating of the support area (171a) peeling off by direct contact between the support area (171a) and the cooling block (150) can be more completely prevented.

[0073] In addition to sealing the gap between the case (110) and the cooling block (150), the sealing unit (190) can also perform the same function as the protective pad (195). Specifically, as the sealing unit (190) is interposed between the case (110) and the cooling block (150), the risk of paint peeling and consequently galvanic corrosion caused by direct contact between the case (110) and the cooling block (150) can be more completely prevented.

[0074] FIG. 5 is an assembled perspective view showing one modified example of the cooling case assembly of FIG. 2.

[0075] Referring to the drawing, the battery system assembly (100A) is generally the same as the preceding battery system assembly (100), but the mounting bracket (170') is different from the preceding mounting bracket (170, see FIG. 2 above).

[0076] The mounting bracket (170') may have a first part (172) and a second part (173). The first part (172) is a part corresponding to the protruding connection (155). The second part (173) may correspond to the perimeter bracket (171, see FIG. 2) of the preceding embodiment. The first part (172) may be connected to the second part (173) in a stepped structure and placed on the protruding connection (155). The first part (172) and the second part (173) together may form a closed loop, for example, a closed rectangle.

[0077] A cross bracket (175) may be additionally connected to the second part (173). The cross bracket (175) may extend across the main surface of the cooling plate (151). The cross bracket (175) may be positioned to correspond to the central area of ​​the cooling plate (151) to support the central area so as not to sag.

[0078] FIG. 6 is an assembly perspective view showing another variation of the cooling case assembly of FIG. 2.

[0079] Referring to the drawing, the battery system assembly (100B) is generally the same as the preceding battery system assembly (100A), but the mounting bracket (170) is different from the preceding mounting bracket (170', see FIG. 5 above).

[0080] Specifically, in the mounting bracket (170"), the cross bracket (175") may have a first cross member (175a) and a second cross member (175b). If the first cross member (175a) corresponds to the cross bracket (175, see FIG. 5) of the preceding embodiment, the second cross member (175b) may intersect with the first cross member (175a).

[0081] The first cross member (175a) and the second cross member (175b) may be joined to each other, for example, by welding, bolting, or clamping. By the first cross member (175a) and the second cross member (175b) forming a cross structure, they can more firmly support the central region of the cooling plate (151). In an alternative embodiment, the first cross member (175a) and the second cross member (175b) may be press-formed as a single piece.

[0082] FIG. 7 is an assembly perspective view showing another variation of the cooling case assembly of FIG. 2.

[0083] The battery system assembly (100C) is generally the same as the preceding battery system assembly (100B), but differs in the fastening unit (180).

[0084] The fastening unit (180) may be configured to fasten the mounting bracket (170"'), specifically the first part (172) and the protruding connecting part (155), to the periphery (113). The fastening unit (180) may be, for example, a bolt. The bolt may be installed to penetrate the protruding connecting part (155), avoiding the area of ​​the protruding connecting part (155) through which the cooling fluid passes. A bolt hole (not shown) of a size having a clearance with respect to the shank of the bolt may be formed in the protruding connecting part (155). Accordingly, the bolt is fastened directly to the mounting bracket (170"') and the case (110) and does not come into contact with the protruding connecting part (155), so that galvanic corrosion between the bolt and the protruding connecting part (155) may not occur.

[0085] By additionally adopting a fastening unit (180), the mounting bracket (170"') can more firmly mount the entire perimeter area of ​​the cooling block (150) to the case (110) despite the protruding connection (155).

[0086] FIG. 8 is an assembled perspective view showing a battery system assembly according to another embodiment of the present invention, and FIG. 9 is a partially exploded perspective view of the battery system assembly of FIG. 8.

[0087] Referring to the drawings, the battery system assembly (200) may include a case (210), a battery module assembly (230), a cooling block (250A and 250B), a mounting bracket (270), and a sealing unit (290).

[0088] The case (210) may have a lower case (210A) and an upper case (210B). The lower case (210A) supports the battery module assembly (230), and the upper case (210B) may be coupled to the lower case (210A) to cover the battery module assembly (230).

[0089] Both the lower case (210A) and the upper case (210B) are formed to face the cooling blocks (250A and 250B). For example, with respect to the upper case (210B), an opening (211), a periphery (213), and a bridge (215) may be formed on the main surface of the upper case (210B). These configurations may also be applied to the lower case (210A) in a largely similar manner.

[0090] Although the mounting bracket (270) and sealing unit (290) are shown as corresponding only to the upper case (210B) and cooling block (250B), they can also be applied to the lower case (210A) and cooling block (250A).

[0091] According to this configuration, the battery module assembly (230) is also thermally connected to the lower cooling block (250A) and the upper cooling block (250B), so that it can be cooled more strongly.

[0092] In an alternative embodiment, only the upper case (210B) and the upper cooling block (250B) are provided, and the lower case (210A) and the lower cooling block (250A) may not be provided.

[0093]

[0094] The present invention has industrial applicability in the field of battery system assembly manufacturing.

Claims

1. Battery module assembly; A case accommodating the above battery module assembly; A mounting bracket fastened to the above case; and A battery system assembly comprising a cooling block sandwiched between the above case and the above mounting bracket and facing the battery module assembly.

2. In Paragraph 1, The above cooling block is, It includes a cooling plate formed to accommodate a cooling fluid, and The above case and the above mounting bracket are, It is formed of a first material and surface-treated, and The above cooling plate is, A battery system assembly formed of a second material different from the first material.

3. In Paragraph 2, The above first material is, It has a higher strength than the second material mentioned above, and The above second material is, A battery system assembly having a higher thermal conductivity than the first material mentioned above.

4. In Paragraph 1, The above mounting bracket is, A support area facing the cooling block and supporting the cooling block; and A battery system assembly comprising a fastening area connected to form a stepped structure for the above-mentioned support area and fastened to the above-mentioned case.

5. In Paragraph 1, The above mounting bracket is, A perimeter bracket extending to cover an edge area along the perimeter direction of the cooling block; and A battery system assembly comprising at least one cross bracket extending across the main surface of the cooling block.

6. In Paragraph 5, The above cross bracket is, 1st cross member; and A battery system assembly comprising a second cross member positioned to intersect with the first cross member.

7. In Paragraph 1, The above cooling block is, A cooling plate corresponding to the above battery module assembly and formed to allow a cooling fluid to flow; and It includes a protruding connecting part that protrudes from the cooling plate and connects the supply line and the return line of the cooling fluid to the cooling plate, The above mounting bracket is, A battery system assembly having an open loop with the portion corresponding to the above-mentioned protruding connection removed.

8. In Paragraph 1, The above cooling block is, A cooling plate corresponding to the above battery module assembly and formed to allow a cooling fluid to flow; and It includes a protruding connecting part that protrudes from the cooling plate and connects the supply line and the return line of the cooling fluid to the cooling plate, The above mounting bracket is, A first part corresponding to the above-mentioned protruding connection part; and A battery system assembly comprising a second part connected to the first part by a stepped structure and covering an edge area along the perimeter direction of the cooling plate.

9. In Paragraph 8, The above first part and the above second part are, A battery system assembly forming a closed loop.

10. In Paragraph 8, It further includes a fastening unit for fastening the above-mentioned mounting bracket to the above-mentioned case, and The above-mentioned fastening unit is, A battery system assembly comprising a bolt that penetrates the first part and the protruding connecting part and is fastened to the case.

11. In Paragraph 1, It further includes a fastening unit for fastening the above-mentioned mounting bracket to the above-mentioned case, and The above-mentioned fastening unit is, A battery system assembly comprising a bolt that detachably fastens the mounting bracket to the case.

12. In Paragraph 1, A battery system assembly further comprising a sealing unit disposed between the above case and the above cooling block.

13. In Paragraph 1, The above case is, A lower case supporting the above battery module assembly; and It includes an upper case that is coupled to the lower case and covers the battery module assembly, and The above mounting bracket is, At least one of the lower case and the upper case is coupled, The above cooling block diagram, A battery system assembly configured to correspond to at least one of the lower case and the upper case in correspondence with the mounting bracket.

14. A case having an opening and a peripheral portion defining the opening; A mounting bracket fastened to the above peripheral portion; and A cooling case assembly for a battery system assembly comprising a cooling block that is sandwiched between the above-mentioned peripheral portion and the above-mentioned mounting bracket and positioned to face a battery module assembly accommodated in the above-mentioned case.

15. In Paragraph 14, The above case is, A cooling case assembly for a battery system assembly, further comprising a bridge connected to the periphery to cross the opening.

16. In Paragraph 14, A cooling case assembly for a battery system assembly, wherein the above-mentioned opening is formed to allow a thermal connection between the cooling block and the battery module assembly.

17. In Paragraph 14, The above cooling block is, It includes a cooling plate formed to accommodate a cooling fluid, and The above case and the above mounting bracket are, It is formed of a first material and surface-treated, and The above cooling plate is, A cooling case assembly for a battery system assembly formed of a second material different from the first material.

18. In Paragraph 17, The above first material is, It has a higher strength than the second material mentioned above, and The above second material is, A cooling case assembly for a battery system assembly having a higher thermal conductivity than the first material mentioned above.

19. In Paragraph 14, The above mounting bracket is, A cooling case assembly for a battery system assembly comprising a perimeter bracket extending to cover an edge area along the perimeter direction of the cooling block.

20. In Paragraph 14, A cooling case assembly for a battery system assembly, further comprising a protective pad disposed between the cooling block and the mounting bracket.

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