Cooling module assembly

Abstract

A cooling module assembly according to an embodiment of the present invention comprises a cooling module comprising: a cold plate; an upper storage unit accommodating an upper battery module on one surface of the cold plate; and a lower storage unit accommodating a lower battery module on the other surface of the cold plate, wherein the cold plate may include therein a cooling flow path through which a cooling fluid flows.

Description

Cooling module assembly

[0001] The present disclosure relates to a cooling module assembly.

[0002] Generally, a secondary battery is a battery capable of repeated use through the discharge process, which converts chemical energy into electrical energy, and the reverse charging process. Various types of secondary batteries are continuously being developed, including nickel-cadmium (Ni-Cd) batteries, nickel-hydrogen (Ni-MH) batteries, lithium-metal batteries, lithium-ion (Ni-Ion) batteries, and lithium-ion polymer batteries (Li-Ion Polymer Battery, hereinafter referred to as "LIPB").

[0003]

[0004] Recently, rechargeable batteries have been attracting attention as a promising energy source due to their widespread use in IT products, the automotive sector, and energy storage. In the IT sector, rechargeable batteries are required to enable long-term continuous use, as well as be miniaturized and lightweight, while the automotive sector demands high output, durability, and safety to eliminate the risk of explosion.

[0005]

[0006] Therefore, various technologies for buffering, such as cooling or physical deformation of secondary batteries, are being developed recently to improve the operational reliability and stability of secondary batteries.

[0007] One aspect of an embodiment of the present invention is to provide a cooling module assembly that can optimize the cooling space and improve cooling efficiency by combining a battery module at the top and bottom, respectively.

[0008] In addition, it is intended to improve the performance and operational reliability of the battery module by appropriately buffering and controlling physical deformations, such as expansion during the cooling process of the battery module.

[0009] A cooling module assembly according to one embodiment of the present invention comprises a cold plate, an upper storage portion in which an upper battery module is accommodated on one surface of the cold plate, and a lower storage portion in which a lower battery module is accommodated on the other surface of the cold plate, wherein the cold plate may include a cooling channel in which a cooling fluid flows.

[0010] Here, the upper storage portion is divided into at least two spaces by an upper partition, and the lower storage portion is divided into at least two spaces by a lower partition; the upper storage portion may include at least two upper side plates coupled to correspond to both sides of an upper battery module stored in each of the spaces of the upper storage portion, at least two lower side plates coupled to correspond to both sides of a lower battery module stored in each of the spaces of the lower storage portion, and side walls coupled to both sides to cover the upper side plates and the lower side plates.

[0011] In addition, the upper side plate and the lower side plate may have a plurality of grooves formed therein.

[0012] In addition, the upper side plate and the lower side plate may be formed of an elastic member having a predetermined elastic force.

[0013] In addition, the upper side plate and the lower side plate may be formed as heat transfer members.

[0014] Additionally, the side wall includes an upper side wall in contact with the upper side plate, a lower side wall in contact with the lower side plate, and a central side wall in contact with the cold plate, and the upper side wall, the lower side wall, and the central side wall may be formed integrally.

[0015] In addition, the thickness of the upper side wall in contact with the upper side plate and the lower side wall in contact with the lower side plate may be formed to be thicker than the thickness of the central side wall in contact with the cold plate.

[0016] In addition, one surface of the upper side wall and the lower side wall is in surface contact with the upper side plate and the lower side plate, and the other surface of the upper side wall and the lower side wall may have an inner groove formed continuously.

[0017] In addition, the cold plate is formed with an inlet on one side into which the cooling fluid flows and an outlet on the other side into which the cooling fluid is discharged, and the cooling channel may be continuous in one direction along the edge area of ​​the surface corresponding to each space of the upper storage section and the surface corresponding to each space of the lower storage section.

[0018] In addition, the above cold plate is formed by combining an upper plate and a lower plate, and the cooling channel may be formed by combining the upper cold groove on the inner surface of the upper plate and the lower cold groove on the inner surface of the lower plate in a direction facing each other.

[0019] Additionally, it may include an upper fixing pin for fixing the upper battery module to the upper storage portion, a lower fixing pin for fixing the lower battery module to the lower storage portion, an upper cover coupled to the upper fixing pin to cover the upper part of the upper battery module, and a lower cover coupled to the lower fixing pin to cover the lower part of the lower battery module.

[0020] Additionally, the upper battery module and the lower battery module may comprise at least one battery cell stacked thereon, at least one buffer pad coupled between the stacked surfaces of the battery cells, and may include a side cover covering both sides of the upper battery module and the lower battery module, a front cover covering the front of the upper battery module and the lower battery module, and a rear cover covering the rear of the upper battery module and the lower battery module.

[0021] Additionally, the device includes an upper fixing pin for fixing the upper battery module to the upper storage unit; and a lower fixing pin for fixing the lower battery module to the lower storage unit, wherein a plurality of upper fixing pins are each coupled to the upper battery module to fix the upper battery module stored in each space of the upper storage unit, and a plurality of lower fixing pins are each coupled to the lower battery module to fix the lower battery module stored in each space of the lower storage unit.

[0022] Additionally, the cooling channel includes an inlet where the cooling fluid flows in and an outlet where the cooling fluid flows out, and the cooling channel through which the cooling fluid flowing in from the inlet may include a first cooling channel formed to extend to one end of the cold plate while alternately moving along both ends in the width direction of the cold plate, and a second cooling channel that extends from one end of the cold plate to the first cooling channel and is connected to the outlet in a straight line in the length direction of the cold plate from one side in the width direction of the cold plate.

[0023] In addition, the upper storage portion may have at least two spaces formed by an upper partition, and the lower storage portion may have at least two spaces formed by a lower partition, at positions corresponding to one side and the other side of the cold plate.

[0024]

[0025] The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings.

[0026] Prior to this, terms and words used in this specification and claims should not be interpreted in their ordinary and dictionary senses, but should be interpreted in a sense and concept consistent with the technical spirit of the invention, based on the principle that the inventor can appropriately define the concept of the terms to best describe his invention.

[0027] According to one embodiment of the present invention, battery modules are housed and stacked on each side of a cold plate, thereby maximizing the number of stacked battery modules in a predetermined space and simultaneously improving cooling efficiency.

[0028] In addition, by appropriately buffering physical deformations such as thermal expansion of the battery module and controlling the physical deformation of the entire battery module, it is possible to effectively ensure the reliability of the battery module's operational performance.

[0029] In addition, by optimizing the bonding structure of the cold plate that cools the battery module by stacking it on both sides, and effectively designing the cooling channels inside the cold plate, it is possible to improve the cooling efficiency of the battery module.

[0030] In addition, through the heat dissipation effect of the coupling member in contact with both sides of the battery module, it is possible to perform cooling of the battery module at various locations on the battery module.

[0031] In addition, stacking and storing battery modules in multiple partitioned spaces has the effect of maximizing the cooling efficiency of the battery modules and facilitating the electrical coupling of the battery modules.

[0032] FIG. 1 is an exploded perspective view of a cooling module assembly according to an embodiment of the present invention.

[0033] FIG. 2 is an exploded perspective view of a cooling module according to an embodiment of the present invention.

[0034] FIG. 3 is a perspective view of a cold plate according to an embodiment of the present invention.

[0035] FIG. 4 is an exploded perspective view of a cold plate according to an embodiment of the present invention.

[0036] FIG. 5 is a cross-sectional view of AA' in FIG. 3.

[0037] FIG. 6 is an exploded perspective view of a battery module according to an embodiment of the present invention.

[0038] The object, specific advantages, and novel features of an embodiment of the present invention will become more apparent from the following detailed description and specific embodiments in conjunction with the accompanying drawings. It should be noted that in assigning reference numbers to the components of each drawing in this specification, the same components are assigned the same number as much as possible, even if they are shown in different drawings. Furthermore, terms such as "one side," "other side," "first," and "second" are used to distinguish one component from another, and the components are not limited by these terms. In the following description of an embodiment of the present invention, detailed descriptions of related known technologies that may unnecessarily obscure the essence of the embodiment of the present invention are omitted.

[0039]

[0040] Hereinafter, a specific embodiment of the present invention will be described in detail with reference to the attached drawings.

[0041]

[0042] FIG. 1 is an exploded perspective view of a cooling module assembly according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of a cooling module according to an embodiment of the present invention, FIG. 3 is a perspective view of a cold plate according to an embodiment of the present invention, FIG. 4 is an exploded perspective view of a cold plate according to an embodiment of the present invention, FIG. 5 is a cross-sectional view of AA' of FIG. 3, and FIG. 6 is an exploded perspective view of a battery module according to an embodiment of the present invention.

[0043]

[0044] A cooling module assembly according to one embodiment of the present invention comprises a cooling module (10) including a cold plate (11), an upper storage portion (12) in which an upper battery module (20) is accommodated on one side of the cold plate (11), and a lower storage portion (13) in which a lower battery module (30) is accommodated on the other side of the cold plate (11), and the cold plate (11) may include a cooling channel (11g) in which a cooling fluid flows inside.

[0045] As illustrated in FIG. 1, in a cooling module assembly according to an embodiment of the present invention, an upper battery module (20) and a lower battery module (30) are respectively accommodated on the upper surface and the lower surface, respectively, which are the two sides of the cooling module (10) as shown in the drawing, and can be cooled by a cold plate (11).

[0046]

[0047] A cold plate (11) may have a cooling channel (11g) formed therein through which a cooling fluid flows. An upper storage section (12) in which an upper battery module (20) is accommodated may be formed on one side of the cold plate (11). A lower storage section (13) in which a lower battery module (30) is accommodated may be formed on the other side of the cold plate (11). Based on the reference shown in FIG. 1, an upper battery module (20) and a lower battery module (30) may be accommodated in the upper and lower parts, respectively, of the cooling module (10).

[0048] In this specification, the upper battery module (20) and the lower battery module (30) are named differently depending on their respective positions in the upper and lower parts of the cold plate (11), but the actual nature of the battery modules is the same, and it is obvious that the number, stacking structure, and shape of the battery modules accommodated in the upper and lower parts can be varied as needed.

[0049]

[0050] As illustrated in FIG. 2, a cooling module (10) according to one embodiment of the present invention may have an upper partition (12a) formed by dividing at least two spaces on one side of a cold plate (11). Likewise, a lower partition (13a) formed by dividing at least two spaces may be included on the other side of the cold plate (11).

[0051] Each upper battery module (20) can be stored in the space partitioned by the upper partition (12a) in the upper storage section (12). The upper battery module (20) can be formed as a unit that fits the specifications of the space partitioned by the upper partition (12a) of the upper storage section (12). The upper partition (12a) may be made of an insulating material to prevent electrical short circuits between the upper battery modules (20) stored in each space. Furthermore, it is obvious that structural modifications for electrical connection, such as grooves on the upper partition (12a), may be included to ensure electrical connection between the battery modules connected in each space.

[0052]

[0053] The lower storage section (13) is also a partitioned space, similar to the upper storage section (12), in which a lower battery module (30) can be stored. Since the specific operation and structure are substantially the same as those of the upper storage section (12), a specific description will be omitted. That is, the lower storage section (13), the lower partition (13a), and the lower battery module (30) are substantially the same as the upper storage section (12), the upper partition (12a), and the upper battery module (20). However, it is obvious that battery modules with different specifications can be stacked in the upper and lower sections, respectively.

[0054]

[0055] A plurality of compartmentalized spaces stored in the upper battery module (20) of the upper storage unit (12) and a plurality of compartmentalized spaces stored in the lower battery module (30) of the lower storage unit (13) can be arranged so as to correspond to the same position in a direction facing each other on one side and the other side of the cold plate (11).

[0056]

[0057] Specifically, an upper battery module (20) is stored in each space partitioned by an upper partition (12a) in the upper storage section (12), and since the upper battery module (20) is stored in a state where it is in contact with one side of the cold plate (11), the lower surface of the upper battery module (20) can be cooled by contacting the cold plate (11).

[0058] On both sides of the upper battery module (20) that are not in contact with the cold plate (11), upper side plates (12b) that fix and support the upper battery module (20) may be attached to both sides. Multiple upper side plates (12b) may be formed to be attached to each side of the upper battery module (20) stored in each space partitioned by the upper storage section (12). The upper side plates (12b) may be attached to control physical deformation, such as the upper battery module (20) expanding in the direction of both sides. By physically and appropriately controlling the expansion of the upper battery module (20) in the direction of both sides, the operational reliability of the upper battery module (20) can be effectively maintained.

[0059] The upper side plate (12b) may have a plurality of grooves (P) formed therein to provide appropriate structural cushioning when controlling physical deformation, such as the expansion of the upper battery module (20). The plurality of grooves (P) of the upper side plate (12b) allow for stable physical control during the expansion of the upper battery module (20) by appropriately inducing and controlling the expansion into the inner space of the grooves (P) when the upper battery module (20) expands in both lateral directions. Of course, these grooves (P) can be modified and applied in the form of through holes penetrating the upper side plate (12b).

[0060] Additionally, if necessary, an elastic member for physical cushioning may be applied to the upper side plate (12b), and by applying the elastic member to a partial location on the upper side plate (12b), the physical control of the upper battery module (20) can be effectively performed, and at the same time, a physical cushioning action can be performed.

[0061] The upper side plate (12b) is equipped with a heat transfer member to suppress physical deformation during the expansion of the upper battery module (20), and at the same time, it can naturally transfer heat generated from the upper battery module (20) to the outside by contacting the upper battery module (20) to perform heat dissipation.

[0062] The upper side plate (12b) is physically placed and coupled individually to each side of the upper battery module (20) accommodated in each space of the upper storage unit (12), thereby allowing for the control of individual physical deformation or expansion of each upper battery module (20) accommodated in each space of the upper storage unit (12). Through this, the maintenance and operation of the stable performance of the entire upper battery module (20) can be achieved.

[0063]

[0064] A lower battery module (30) is stored in each space partitioned by a lower partition (13a) in the lower storage section (13), and since the lower battery module (30) is stored in a state where it is in contact with the other side of the cold plate (11), the lower battery module (30) can be cooled by having its lower surface in contact with the cold plate (11).

[0065] Lower side plates (13b) that fix and support the lower battery module (30) may be attached to the sides that are not in contact with the cold plate (11) of the lower battery module (30). Lower side plates (13b) may be formed on each side of each lower battery module (30) stored in each space partitioned by the lower storage section (13). Lower side plates (13b) may be attached to control physical deformation, such as the lower battery module (30) expanding in the lateral direction. By physically and appropriately controlling the expansion of the lower battery module (30) in the lateral direction, the operational reliability of the lower battery module (30) can be effectively maintained.

[0066] The lower side plate (13b) may have a plurality of grooves (P) formed therein to provide appropriate structural cushioning when controlling physical deformation, such as the expansion of the lower battery module (30). The plurality of grooves (P) of the lower side plate (13b) can stably perform physical control during the expansion of the lower battery module (30) by appropriately inducing and controlling the expansion into the inner space of the grooves (P) when the lower battery module (30) expands in both lateral directions. Of course, these grooves (P) can be modified and applied in the form of through holes penetrating the lower side plate (13b).

[0067] Additionally, if necessary, an elastic member may be applied to the lower side plate (13b) for physical cushioning, and by applying the elastic member to a partial location on the lower side plate (13b), the physical control of the lower battery module (30) can be effectively performed, and at the same time, a cushioning action can be performed.

[0068] The lower side plate (13b) is equipped with a heat transfer member to suppress physical deformation during the expansion of the lower battery module (30), and at the same time, it can naturally transfer heat generated from the lower battery module (30) to the outside to dissipate heat by contacting the lower battery module (30).

[0069] The lower side plate (13b) is individually placed and coupled to each side of the lower battery module (30) accommodated in each space of the lower storage unit (13), thereby allowing for the control of individual physical deformation or expansion of the lower battery module (30) accommodated in each space of the lower storage unit (13). Through this, the maintenance and operation of the stable performance of the entire lower battery module (30) can be achieved.

[0070]

[0071] As illustrated in FIG. 2, side walls (14) may be attached to both sides to cover the entire upper side plate (12b) and lower side plate (13b). The side walls (14) may be formed by integrally forming an upper side wall (14a) attached to the upper side plate (12b), a lower side wall (14c) attached to the lower side plate (13b), and a central side wall (14b) attached to cover both sides of the cold plate (11), or by individually joining the side walls (14) to each other.

[0072] The upper side wall (14a) and the lower side wall (14c) may be formed thicker than the central side wall (14b). In this case, the upper side wall (14a) and the lower side wall (14c) may have one surface in contact with the upper side plate (12b) and the lower side plate (13b) formed as a flat surface, and the other surface in the outer direction may have multiple inner grooves (G) formed continuously.

[0073] The inner groove (G) on the other side of the upper side wall (14a) and the lower side wall (14c) can effectively induce contact with air through the inner groove (G) when the upper side plate (12b) and the lower side plate (13b) dissipate heat through heat transfer, thereby increasing cooling efficiency.

[0074] The central side wall (14b) is formed with a thickness relatively thinner than the upper side wall (14a) and lower side wall (14c) and can be attached to both sides of the cold plate (11). When the cold plate (11) is cooled by contacting both sides, this cooling effect is transferred to the entire side wall (14), which can further promote the heat dissipation effect of the upper side wall (14a) and lower side wall (14c).

[0075]

[0076] As shown in FIG. 3, the cold plate (11) may have an inlet (11e) into which a cooling fluid is introduced and an outlet (11f) into which the cooling fluid is discharged after cooling the battery module through a cooling channel (11g), each formed on both sides of the cold plate (11).

[0077]

[0078] As shown in FIG. 4, the cold plate (11) can be formed by combining an upper plate (11a) and a lower plate (11c). The cooling channel (11g) can be designed so that the cooling channel (11g) is as densely packed as possible at a position corresponding to a plurality of compartments of the upper storage section (12) and the lower storage section (13).

[0079] As shown in FIG. 4, the cooling channels (11g) can be formed alternately and continuously on one side and the other side to cover the border areas of each compartment space of the upper storage section (12) and the lower storage section (13).

[0080] Specifically, the cooling channel through which the cooling fluid introduced from the inlet (11) flows may include a first cooling channel (a) formed by extending in the longitudinal direction of the cold plate (11) to cover the front of the cold plate (11) by alternately moving both ends in the width direction of the cold plate (11), and a second cooling channel (b) that extends from one end of the cold plate (11), i.e., the end of the first cooling channel (a), to the first cooling channel (a), and is connected in a straight direction opposite to the longitudinal direction of the cold plate (11) from one end in the width direction of the cold plate (11) to be directly connected to the outlet (11f).

[0081] That is, the cooling channel (11g) can be formed with a first cooling channel (a) and a second cooling channel (b) that can rapidly discharge cooling fluid in a straight direction from one end of the cold plate (11).

[0082] When a cooling fluid is introduced through the inlet (11e) to cool the battery module, the cooling channel (11g) is configured to flow over a maximum area by combining straight lines and curves, and when the cooling fluid is discharged after the cooling effect has decreased, the length of the discharge direction is minimized in a straight line from one end of the cold plate (11) to rapidly discharge the cooling fluid, thereby enabling the circulation of the cooling fluid to optimize the overall cooling efficiency.

[0083]

[0084] As shown in FIG. 4, an upper inner groove (11b) for forming a cooling channel (11g) may be formed on the upper plate (11a) of the cold plate (11), and a lower inner groove (11d) for forming a cooling channel (11g) may be formed on the lower plate (11c).

[0085]

[0086] As shown in FIG. 5, the upper plate (11a) and the lower plate (11c) are joined in a facing direction so that the upper inner groove (11b) and the lower inner groove (11d) are joined together to form a cooling channel (11g) through which a cooling fluid flows. By forming the cooling channel (11g) directly on the upper plate (11a) and the lower plate (11c) that are in direct contact with the battery module, the cooling efficiency of the battery module by the cooling fluid can be increased.

[0087] In addition, the surfaces of the upper plate (11a) and the lower plate (11c) that contact the battery module are each made of flat surfaces, and the upper inner groove (11b) and the lower inner groove (11d) are formed in the directions facing each other on the upper plate (11a) and the lower plate (11c), respectively, so that they can be combined to form a cooling channel (11g). By doing so, the contact area for cooling with the battery module can be maximized, thereby increasing cooling efficiency.

[0088]

[0089] As illustrated in FIG. 6, the upper battery module (20) and the lower battery module (30) may be formed by stacking a plurality of battery cells (81). When the battery cells (81) are stacked in the stacking direction, at least one buffer pad (82) may be attached to the stacking surface. The buffer pad (82) is appropriately attached to the stacking surface of the battery cells (81) to perform an appropriate buffering action when the battery cells (81) expand. In the illustrated drawing, one buffer pad (82) is attached for every four battery cells (81), but this can be appropriately changed according to the specifications of the battery module or the applied device. The buffer pad (82) may be made of a member having elasticity, and the elasticity can be appropriately designed for each battery module to which it is applied.

[0090]

[0091] After a plurality of battery cells (81) are stacked, a front cover (83a) and a rear cover (83b) are combined to cover the front and rear sides, respectively, and side covers (84) may also be combined on both sides. The front cover (83a) and the rear cover (83b) may include a slit (S) so that the electrode tab (81a) of the battery cell (81) is exposed for electrical connection. The side covers (84) may include a predetermined groove or structural design for physical rigidity.

[0092] As illustrated in FIG. 1, it may include an upper fixing pin (40) that fixes the upper battery module (20) to the upper storage portion (12), a lower fixing pin (50) that fixes the lower battery module (30) to the lower storage portion (13), an upper cover (60) that is coupled to the upper fixing pin (40) to cover the upper part of the upper battery module (20), and a lower cover (70) that is coupled to the lower fixing pin (50) to cover the lower part of the lower battery module (30).

[0093]

[0094] As illustrated in FIG. 1, the upper fixing pin (40) and the lower fixing pin (50) can be combined to fix and support the battery modules corresponding to each partitioned space of the upper storage unit (12) and the lower storage unit (13), respectively. This allows for effective physical fixing and support of each battery module in each partitioned space of the upper storage unit (12) and the lower storage unit (13), thereby enabling more effective control of the operation of the entire battery module due to expansion or detachment of some battery modules.

[0095] Finally, an upper cover (60) and a lower cover (70) covering the cooling module (10) at the top and bottom, respectively, can be combined. A cooling module assembly in which the upper cover (60) and the lower cover (70) are combined in this way can be applied to one or more devices.

[0096] In this way, by making the cooling module (10) compact, the degree of freedom in the cooling design of the battery module within a limited predetermined space can be effectively increased, so that a cooling module assembly with optimized cooling efficiency can be applied to devices of various specifications.

[0097]

[0098] Although the present invention has been described in detail through specific embodiments, this is for the purpose of specifically explaining the invention, and the embodiments of the present invention are not limited thereto. It will be apparent that modifications or improvements can be made by those skilled in the art within the technical scope of the embodiments of the present invention.

[0099] All simple variations or modifications of an embodiment of the present invention fall within the scope of an embodiment of the present invention, and the specific scope of protection of an embodiment of the present invention will be clarified by the appended claims.

[0100] [Explanation of the symbol]

[0101] 10: Cooling module 11: Cold plate

[0102] 11a: Top plate 11b: Upper inner groove

[0103] 11c: Bottom plate 11d: Lower inner groove

[0104] 11e: Inlet 11f: Outlet

[0105] 12: Upper storage compartment 12a: Upper bulkhead

[0106] 12b: Upper side plate

[0107] 13: Lower storage compartment 13a: Lower bulkhead

[0108] 13b: Lower side plate

[0109] 14: Side wall 14a: Upper side wall

[0110] 14b: Central sidewall 14c: Lower sidewall

[0111] 20: Upper battery module 30: Lower battery module

[0112] 40: Upper fixing pin 50: Lower fixing pin

[0113] 60: Upper cover 70: Lower cover

[0114] 81: Battery cell 81a: Electrode tab

[0115] 82: Cushioning pad 83a: Front cover

[0116] 83b: Rear cover 84: Side cover

[0117] a: 1st cooling channel b: 2nd cooling channel

[0118] S: Slit P: Groove

[0119] G: Inner groove

Claims

1. Cold plate; An upper storage portion in which an upper battery module is accommodated on one surface of the above-mentioned Colt plate; and A cooling module comprising a lower storage portion in which a lower battery module is accommodated on the other surface of the above-mentioned cold plate, and The above cold plate is a cooling module assembly comprising a cooling channel through which a cooling fluid flows.

2. In Claim 1, The above upper storage unit is divided into at least two spaces by an upper partition, and The above lower storage unit is divided into at least two spaces by a lower partition, and At least two upper side plates coupled to correspond to both sides of the upper battery module stored in each space of the upper storage portion; At least two lower side plates coupled to correspond to both sides of the lower battery module stored in each space of the lower storage portion, and A cooling module assembly comprising side walls coupled to both sides to cover the upper side plate and the lower side plate.

3. In Claim 2, The above upper side plate and the above lower side plate are a cooling module assembly in which a plurality of grooves are formed.

4. In Claim 2, The above upper side plate and the above lower side plate are a cooling module assembly formed of an elastic member having a predetermined elastic force.

5. In Claim 2, The above upper side plate and the above lower side plate are a cooling module assembly formed of a heat transfer member.

6. In Claim 2, The above side wall is A cooling module assembly comprising an upper side wall in contact with the upper side plate, a lower side wall in contact with the lower side plate, and a central side wall in contact with the cold plate, wherein the upper side wall, the lower side wall, and the central side wall are integrally formed.

7. In Claim 2, The above side wall is A cooling module assembly in which the thickness of the upper side wall in contact with the upper side plate and the lower side wall in contact with the lower side plate is thicker than the thickness of the central side wall in contact with the cold plate.

8. In Claim 7, One surface of the upper side wall and the lower side wall is in surface contact with the upper side plate and the lower side plate, and the other surface of the upper side wall and the lower side wall has an inner groove formed continuously therein, forming a cooling module assembly.

9. In Claim 2, The above cold plate is The inlet on one side into which the above cooling fluid flows in and An outlet on the other side is formed for discharging the above cooling fluid, and A cooling module assembly in which the cooling channel is continuous in one direction along the edge area of ​​the surface corresponding to each space of the upper storage section and the surface corresponding to each space of the lower storage section.

10. In Claim 1, The above cold plate is formed by combining an upper plate and a lower plate, and The above cooling channel is a cooling module assembly formed by combining the upper cooling groove on the inner surface of the upper plate and the lower cooling groove on the inner surface of the lower plate in a direction facing each other.

11. In Claim 1, An upper fixing pin for fixing the upper battery module to the upper storage portion; A lower fixing pin for fixing the lower battery module to the lower storage portion; An upper cover coupled to the upper fixing pin above to cover the upper part of the upper battery module; and A cooling module assembly comprising a lower cover coupled to cover the lower part of the lower battery module on the lower fixing pin above.

12. In Claim 1, The upper battery module and the lower battery module above are, At least one battery cell is stacked, and At least one buffer pad is coupled between the stacked surfaces of the above battery cell, and Side covers covering both sides of the upper battery module and the lower battery module; A front cover covering the front of the upper battery module and the lower battery module, and A cooling module assembly comprising a rear cover covering the rear surface of the upper battery module and the lower battery module.

13. In Claim 2, An upper fixing pin for fixing the upper battery module to the upper storage portion; and It includes a lower fixing pin that fixes the lower battery module to the lower storage portion, and A plurality of the above upper fixing pins are each coupled to the upper battery modules to fix the upper battery modules stored in each space of the upper storage portion, and A cooling module assembly in which a plurality of lower fixing pins are each coupled to the lower battery modules to fix the lower battery modules stored in each space of the lower storage portion.

14. In Claim 1, The above cooling channel An inlet into which the above cooling fluid flows; It includes an outlet through which the above-mentioned cooling fluid is discharged, and A cooling channel through which the cooling fluid introduced from the above inlet flows is formed such that it alternately moves along both ends in the width direction of the cold plate and extends to one end of the cold plate, and a first cooling channel. A cooling module assembly comprising a second cooling channel extending from one end of the cold plate to the first cooling channel, and connected to the outlet in a straight line along the length direction of the cold plate from one side in the width direction of the cold plate.

15. In Claim 2, A cooling module assembly in which the upper storage portion has at least two spaces formed by an upper partition, and the lower storage portion has at least two spaces formed by a lower partition, at positions corresponding to one side and the other side of the cold plate.

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