DESC:COOLING PLATE FOR ENERGY STORAGE SYSTEM

CROSS REFERENCE TO RELATED APPLICATIONS:
[01] The present application claims priority from Indian Provisional Patent Application No. 202221053289 filed on 18th September 2022, the entirety of which is incorporated herein by a reference.
TECHNICAL FIELD:
[02] Generally, the present disclosure relates to a cooling mechanism for a battery pack. Particularly, the present disclosure relates to a fluid-flow cooling plate for a battery pack of an electric vehicle and/or an energy storage solution.
BACKGROUND:
[03] Recently, the battery-packs have attracted considerable attention for being used as a power source for a variety of solutions, and are being presented as a method of solving air pollution and the like, caused by conventional vehicles, diesel vehicles and the like using fossil fuels. Also, the battery-packs are getting widely accepted to reduce the dependency on fossil fuels.
[04] In conventionally used battery-packs, a large number of battery cells are electrically connected and used as a single unit due to the necessity of high output and large capacity. Further, the battery cells generate a large amount of heat during a charging and discharging process. When heat generated during the charging and discharging process is not effectively eliminated, heat accumulation may occur, which may accelerate deterioration of the battery cell, and according to circumstances, the battery pack may catch fire or explode.
[05] Therefore, it is a common practice to provide a cooling means or cooling plate for facilitating temperature reduction, to keep the vehicle battery at an optimal operating temperature. Further, as a suitable means for cooling fluid-flowable cooling plates have been found. However, with existing cooling systems/plates there exists a problem that the existing cooling systems/plates are unable to fill a cavity created between a plurality of cell tabs. Thus, the existing cooling systems/plates are inefficient in terms of direct cell tab cooling. Moreover, in the existing cooling systems/plates there exists a high probability for creation of stagnant coolant regions which further reduce heat transfer rate.
[06] Thus, there exists a need for a cooling system/plate capable of direct cooling of cell tabs and eliminating the possibility of creation of stagnant coolant regions, for effective cooling.
SUMMARY:
[07] An object of the present disclosure is to provide a cooling plate capable of direct cooling of cell tabs of a battery pack.
[08] Another object of the present disclosure is to provide a cooling plate capable of eliminating the possibility of creation of stagnant coolant regions in the cooling system of a battery pack.
[09] Other objects and advantages of the system of the present disclosure will be more apparent from the following description when read in conjunction with the accompanying figures, which are not intended to limit the scope of present disclosure.
[010] The present disclosure overcomes one or more shortcomings of the prior art and provides additional advantages discussed throughout the present disclosure.
[011] In an aspect of the present disclosure, there is provided a fluid-flow cooling plate for a battery pack. The cooling plate comprises a cover plate, a bottom plate. The cover plate and the bottom plate are spaced apart. The cooling plate further comprises at least one separation column configured to form a coolant flow path for a coolant and a plurality of embossed bubbles located along the coolant flow path. The plurality of embossed bubbles is configured to fill a cavity created between a plurality of cell tabs and the cooling plate for facilitating quick heat exchange between the cell tab and the cooling plate. The plurality of cell tabs and the cooling plate are spaced apart by a cell holder.
[012] The system, as disclosed in the present disclosure are advantageous in terms of terms of efficient cooling of the battery pack by direct cooling the cell tabs. Moreover, the cooling plate eliminates the possibility of creation of stagnant coolant regions. Thus, improving the heat transfer rate.
[013] Additional features and advantages are realized through the techniques of the present disclosure. Other embodiments and aspects of the disclosure are described in detail herein and are considered a part of the claimed disclosure.
BRIEF DESCRIPTION OF THE DRAWINGS:
[014] The summary above, as well as the following detailed description of illustrative embodiments, is better understood when read in conjunction with the appended drawings. For the purpose of illustrating the present disclosure, exemplary constructions of the disclosure are shown in the drawings. However, the present disclosure is not limited to specific methods and instrumentalities disclosed herein. Moreover, those in the art will understand that the drawings are not to scale. Wherever possible, like elements have been indicated by identical numbers.
[015] Embodiments of the present disclosure will now be described, by way of example only, with reference to the following diagrams wherein:
[016] FIG. 1 is an exploded perspective view illustrating a battery pack according to an embodiment of the present invention.
[017] FIG. 2 is an exploded perspective view illustrating a cooling plate according to an embodiment of the present invention.
[018] FIG. 3 is an exploded perspective view illustrating a cover plate according to an embodiment of the present invention.
[019] FIG. 4 is a cross-sectional view illustrating a cooling plate according to an embodiment of the present invention.
[020] FIG. 5 is a cross-sectional view illustrating a battery module according to an embodiment of the present invention.
[021] FIG. 6 is a cross-sectional view illustrating a cover plate according to an embodiment of the present invention
[022] Common reference numerals are used throughout the drawings and the detailed description to indicate the same elements.
[023] In the accompanying drawings, an underlined number is employed to represent an item over which the underlined number is positioned or an item to which the underlined number is adjacent. A non-underlined number relates to an item identified by a line linking the non-underlined number to the item. When a number is non-underlined and accompanied by an associated arrow, the non-underlined number is used to identify a general item at which the arrow is pointing.
DETAILED DESCRIPTION:
[024] The following detailed description illustrates embodiments of the present disclosure and ways in which they can be implemented. Although some modes of carrying out the present disclosure have been disclosed, those skilled in the art would recognise that other embodiments for carrying out or practising the present disclosure are also possible.
[025] The detailed description set forth below in connection with the appended drawings is intended as a description of certain embodiments of a cooling mechanism for an energy storage system and is not intended to represent the only forms that may be developed or utilized. The description sets forth the various structures and/or functions in connection with the illustrated embodiments; however, it is to be understood that the disclosed embodiments are merely exemplary of the present disclosure that may be embodied in various and alternative forms. The figures are not necessarily to scale; some features may be exaggerated or minimized to show details of particular components. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present disclosure.
[026] While the disclosure is susceptible to various modifications and alternative forms, specific embodiment thereof has been shown by way of example in the drawings and will be described in detail below. It should be understood, however, that it is not intended to limit the disclosure to the particular forms disclosed, but on the contrary, the disclosure is to cover all modifications, equivalents, and alternatives falling within the scope of the disclosure.
[027] The terms “comprises”, “comprising”, “include(s)”, or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a setup, system that comprises a list of components or steps does not include only those components or steps but may include other components or steps not expressly listed or inherent to such setup or system. In other words, one or more elements in a system or apparatus preceded by “comprises… a” does not, without more constraints, preclude the existence of other elements or additional elements in the system or apparatus.
[028] In the following detailed description of the embodiments of the disclosure, reference is made to the accompanying drawings that form a part hereof, and which are shown by way of illustration specific embodiments in which the disclosure may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the disclosure, and it is to be understood that other embodiments may be utilized and that changes may be made without departing from the scope of the present disclosure. The following description is, therefore, not to be taken in a limiting sense.
[029] The present disclosure will be described herein below with reference to the accompanying drawings. In the following description, well known functions or constructions are not described in detail since they would obscure the description with unnecessary detail.
[030] Referring to attached drawings, embodiments of the present disclosure will be described below. “front”, “rear”, “right”, “left”, “upper” and “lower” denote each position of a vehicle viewed from a rider. The drawings shall be viewed with regard to the reference numbers.
[031] The present disclosure describes a cooling mechanism for a battery pack of an electric vehicle.
[032] Fig. 1 illustrates a battery pack 100 (as shown in Fig. 1) that is a set of any number of identical batteries or individual battery cells which delivers the desired voltage, capacity, or power density to an external device. The battery pack 100 includes a plurality of cells 102, a cell holder 104, cell tabs 106, busbars 108, a thermal pad 110, and a cooling module 112.
[033] The plurality of battery cells 102 (as shown in Fig. 1) constituting the battery pack 100 is a kind of, not limited to, the cylindrical battery cells and prismatic battery cells. The design and dimensions of the battery cells 102 may be standardized such that the battery cells 102 may be easily and individually repaired, replaced, or maintained. The battery cells 102 is connected in series and/or in parallel according to the output and capacity required for the battery pack 100. For example, the cylindrical battery cells 100 may be electrically connected in series and/or parallel to each other by a bus bar made of a copper plate. The plurality of battery cells 102 is homogeneous or heterogeneous in one or more aspects, such as height, shape, voltage, energy capacity, location of terminal(s) and so on.
[034] The cell holder 104 (as shown in Fig. 1) constituting the battery pack 100 includes a plurality of opening (not shown if Fig. 1) to hold the plurality of battery cells 102. The plurality of battery cells 102 are held by the battery cell holder 104 with their lower end portions received in the plurality of holes that are provided in the battery cell holder 104. The battery cell holder 104 is generally plate-shaped, and the plurality of holes are arranged two-dimensionally in the plate plane.
[035] The current collector 106 constituting the battery pack 100 is disposed above the cell holder 104 and in contact with the plurality of cells 102. The plurality of battery cells 102 is coupled with the current collector 106 (e.g., stacked current collector) to transfer the current associated with the battery cells 102 is transferred from the battery cells 104 to a device that is connected to the battery pack 100. The current collector configuration supports positive and negative connections at a top portion of the battery cells such that positive and negative terminals couple with the same end of the battery cells for ease of assembly. Tabs of the cell tabs 106 are coupled to the plurality of battery cells 102, using techniques, not limited to, laser welding or wire bonding.
[036] The busbars 108 constituting the battery pack 100 is disposed above the cell tabs 106. The busbar 108 includes, geometrically or functionally, a strip or bar that carries current. The busbar 108 includes a plurality of holes in which plurality of current collector is disposed to interconnect number of terminals of the plurality of battery cells 102. The busbar 108 along with the cell tabs 106 include a conductive piece of metal that is electrically connected to battery cells 102 (e.g., terminals of the battery cells) and that carries current from the battery cells 102. By means of the busbars 108 with the cell tabs 106, a number of battery cells 102 may be electrically connected in parallel such that electrical capacity of the battery cells 102 is increased. Alternatively, a series connection is realized, to increase the voltage provided by the battery cells 102.
[037] A heat-discharging pad called a thermal pad 110 is used to regulate the heat produced by the plurality of cells 102. The thermal pad 110 is coupled to the busbars 108. The thermal pad 110 is used as a medium for transferring heat, generated by the battery cells 102 to the cooling module 112 of the battery pack 100. The thermal pad 110 is formed of a material having high thermal conductivity.
[038] The cooling module 112 constituting the battery pack 100 is coupled to the thermal pad 110. The cooling module 112 completely overlaps the entire surfaces of the thermal pad 110. The cooling module 112 include a passage through which a coolant moves (or flows). The coolant performs a heat exchange with the battery cells 102 via the thermal pad 110 while circulating inside the cooling module 112. The cooling module 112 is made of a material having excellent thermal conductivity. The material may be, not limited to, aluminium, stainless steel, copper, polymer, and so forth.
[039] As illustrated in FIG. 2, the cooling module 200 includes a cover plate 202 and a bottom plate 204. In a non-limiting embodiment of the present disclosure, the cover plate 202 and the bottom plate 204 are fixed together. In particular, the cover plate 202 and the bottom plate 204 are coupled to each other by using a technique. The technique may be for example, not limited to, a brazing technique, a welding technique, and so forth. A shape and a size of the cover plate 202 is same as a shape and a size of the bottom plate 204.
[040] The cover plate 202 includes a first surface 210-a, second surface 210-b, third surface 212-a, and fourth surface 212-b. A length of the first surface 210-a and second surface 210-b extends in a direction (z-axis) that is orthogonal to an x-axis. The length of the first surface 210-a and the second surface 210-b are same. A length of the third surface 212-a and the fourth surface 212-b extends in horizontal direction (i.e., x-axis direction). The length of the third surface 212-a and the fourth surface 212-b are same. The first surface 210-a and the second surface 210-b are coupled to the third surface 212-a, and fourth surface 212-b.
[041] In a non-limiting embodiment of the present disclosure, the at least one separation columns 206 is placed vertically between the cover plate 202 and the bottom plate 204 to form a coolant flow path. In particular, the cover plate 202 further includes separation columns 206 between an upper surface of the cover plate 202 and the bottom plate 204 which form a coolant path for the coolant.
[042] In a non-limiting embodiment of the present disclosure, the at least one separation column extends along a length of the cover plate 202 and the bottom plate 204. In particular, each of separation columns 206 extends length wise in the direction of the first surface 212-a and second surface 212-b (i.e. in the z-axis direction). The separation columns 206 are arranged in the length direction of the third surface 212-c and the fourth surface 212-d with a specific distance between them. Each of the separation columns 206 is attached to the one of the third surface 212-a and the fourth surface 212-b. In a non-limiting example of the present disclosure, the first separation column is attached to the third surface 212-a and the second separation column adjacent to the first separation column is attached to the fourth surface 212-b.
[043] The bottom plate 204 includes a first surface 214-a, second surface 214-b, third surface 216-a, and fourth surface 216-b. A length of the first surface 214-a and second surface 214-b extends in a direction (z-axis) that is orthogonal to an x-axis. The length of the first surface 214-a and the second surface 214-b are same. A length of the third surface 216-a and the fourth surface 216-b extends in horizontal direction (i.e. x-axis direction). The length of the third surface 216-a and the fourth surface 216-b are same. The first surface 214-a and the second surface 214-b are coupled to the third surface 216-a, and fourth surface 216-b.
[044] The bottom plate 204 includes embossed bubbles 208. In a non-limiting embodiment of the present disclosure, the embossed bubbles 208 extends outward from the bottom plate 204. In particular, the embossed bubbles 208 is an extended portion formed on the surface of the bottom plate 204 by performing stamping process on the bottom plate 204. The stamping process is a manufacturing process used to convert flat metal sheets into specific shapes by providing extended portion in the bottom plate 204. A shape of the extended portion may be, for example, not limited to diamond, triangle, square, rectangle, decagon, oval, and so forth. The stamping process includes different techniques such as blanking, punching, bending, piercing, and so forth. The embossed bubbles 208 extends along a direction that is perpendicular to the x-axis and y-axis. The embossed bubbles 208 is extends in a downward direction of the bottom plate 204 i.e., in a direction towards the thermal pad 110. Each of the embossed bubbles 208 is spaced apart from other embossed bubbles 208.
[045] Fig. 3 illustrate a bottom view of the cover plate 300 (same as the cover plate 202 of Fig. 2). The cover plate 300 includes separation columns 302, a flow path 304, heat sink fins 306, a coolant inlet hose 308, and a coolant outlet hose 310. The separation columns 302 are arranged in the cover plate 300 in a length direction of the cover plate 300. Each of the separation columns 302 are spaced apart from adjacent separation column. The flow path 304 is a helical path formed by a space present between the separation columns 302. The flow path 304 allows the flow of the coolant in the cooling module 110.
[046] The heat sink fins 306 is made of a material having excellent thermal conductivity. The material may be, not limited to, aluminium, stainless steel, copper, polymer, and so forth. The heat sink fins 306 are embedded in the cover plate 300 by using a technique. The technique may be for example, not limited to, a brazing technique, a welding technique, and so forth. The heat sink fins 306 are embedded in a bottom surface of the cover plate 300 such that the heat sink fins 306 formed an extended portion on the bottom surface of the cover plate 300. The heat sink fins 306 are extended towards the bottom plate (such as bottom plate 204 of Fig. 2). The heat sink fins 306 allows the transfer of heat generated by cells 102 through the coolant. The heat sink fins 306 are embedded on the cover plate 300 such that during the coupling of the cover plate 300 with the bottom plate 204 each of the heat sink fins 306 will be coupled with a respective embossed bubbles (such as embossed bubbles 208 of Fig. 2). A length of the heat sink fins 306 in a downward direction is shorter than a length of the embossed bubbles 208 in the downward direction such that during the coupling of the cover plate 300 with the bottom plate 204 coolant is allowed to flow between the cover plate 300 and the bottom plate 204.
[047] The coolant inlet hose 308 is a portion through which the coolant is inserted in the cooling plate 300. The coolant outlet hose 310 is a portion through which is the coolant is takeout from the cooling plate 300.
[048] The coolant may be for example, not limited to, water, deionized water, Ethylene Glycol mixture, dielectric fluids, and so forth. The Coolant is inserted in the cooling plate 300 by using the coolant inlet hose 308. This coolant is flows in the flow path 302 through the heat sink fins 306. During the flow of the coolant from the coolant inlet hose 308 and the coolant outlet hose 310, the heat generated from the battery cells 102 is extracted out from the battery pack (such as the battery pack 100 of the Fig. 1).
[049] Fig. 4 illustrate a cross-sectional view of the cooling plate 400 (such as the cooling plate 112 of Fig. 1). In a non-limiting embodiment of the present disclosure, the cooling plate 400 includes a cover plate 402 (such as the cover plate 202 of Fig. 2), a bottom plate 404 (such as the bottom plate 204 of Fig. 2). The cover plate 402 and the bottom plate 404 are spaced apart. The cooling plate 400 further includes at least one separation column 406 (such as the separation columns 206 of Fig. 2) configured to form a coolant flow path 408 for a coolant. The cooling plate 400 further includes a plurality of embossed bubbles 410 (such as the embossed bubbles 208 of Fig. 2) located along the coolant flow path 408. The plurality of embossed bubbles 410 is configured to fill a cavity created between a plurality of cell tabs (such as the cell tabs 106 of Fig. 1) and the cooling plate 400 for facilitating quick heat exchange between the cell tabs 106 and the cooling plate 400. The cell tabs 106 and the cooling plate 500 are spaced apart by a thermal pad (such as the thermal pad 110 of Fig. 1). The arrangement of the cooling plate 400 provides thermal enhancement of the battery pack (such as the battery pack 100 of Fig. 1) such that the heat generated by the battery cells (such as the battery cells 102 of Fig. 1) and current collector is directly taken out by the coolant.
[050] Fig. 5 illustrate a cross-sectional view of the battery pack 500 (same as the battery pack 100 of Fig. 1). The battery pack 500 includes the battery cells 502 (such as the battery cells 102 of Fig. 1), cell holder 504 (such as the cell holder 104 of Fig. 1) that holds the battery cells 502. Further, the battery pack 500 includes cell tabs 506 (such as the cell tabs 106 of the Fig. 1) is disposed above the cell holder 504. Each of the cell tabs 506 is in contact with a different battery cell of the battery cells 502 by using a plurality of holes present in the cell holder 504. Arrangement of the cell tabs 406 on the battery cells 502 allows transfer of current associated with the battery cells 402 from the battery pack 500.
[051] Further, the cross-sectional view of the battery pack 500 describes busbars 508 that is disposed above the cell tabs 506. The busbars 508 connects the battery cells 502 to provide one of the parallel connections between the battery cells 502 and a series connection between the battery cells 502.
[052] Further, the battery pack 500 includes a thermal pad 510 (such as the thermal pad 110 of Fig. 1) and the fluid-flow cooling plate 512 (such as the fluid-flow cooling plate 112 of Fig. 1). In conventional battery pack, the thermal pad and cooling plate is disposed above the busbar. This conventional arrangement of the battery pack provides a gap between the thermal pad the cell tabs which result in a non-conductive medium between the thermal pad the current collector is created. Presence of the non-conductive medium reduces the thermal capability of the battery pack.
[053] The present disclosure resolves this issue (arises in the conventional arrangement of the battery pack) by providing stamping in the thermal pad 510 and the cooling plate 512. The thermal pad 510 includes an extended portions that extends towards the cell tabs 506. The extended portions on the surface of the thermal pad 510 is formed by the stamping process. The extended portions on the thermal pad 510 is in direct contact with the current collectors 506. A shape of the extended portion of the thermal pad 510 may be, for example, not limited to diamond, triangle, square, rectangle, decagon, oval, and so forth. The cooling plate 512 also includes extended portions that extends towards the thermal pad 510. Each of the extended portions of the cooling plate 512 is in direct contact with a respective extended portion of the thermal pad 510.
[054] Further, the cooling plate 512 includes a cover plate 514 and the bottom plate 518 that is coupled to the cover plate 514. A gap is present between the cover plate 514 and the bottom plate 516 in order to allow flow of the coolant through the gap. The cooling plate 512 includes separation columns 518 present in a bottom surface of the cover plate 514. Each of the separation columns 518 is spaced apart from the adjacent separation column to form a separation gaps. The separation gaps present between the separation columns 518 forms a coolant flow path between the cover plate 514 and the bottom plate 516 which allows flow of the coolant. The cooling plate 512 further includes embossed bubbles 520 present in the bottom plate 514. The embossed bubbles 520 are extend towards the cell tabs 506. In a non-limiting embodiment of the present disclosure, the plurality of embossed bubbles 520 is concentric to the plurality of cells 502 of the battery pack 500. The bottom plate 514 is coupled to the thermal pad 510 and in direct contact with the thermal pad 510.
[055] As described above, multiple cavities are present between the cell tabs 506 and the thermal pad 510. These cavities are spaced apart from each other by a distance. The thermal pad 510 includes extended portion to fill the cavity. The extended portion on the thermal pad 510 is in downward direction towards the cell pads 506. The extended portion on the thermal pad 510 comes in direct contact with the cell tabs 506 through the cavities.
[056] Further, the extended portion on the thermal pad 510 creates cavities between the thermal pad 510 and the bottom plate 514. The embossed bubbles 520 present in the bottom plate 516 fill the cavities present between the thermal pad 510 and the bottom plate 516. After the coupling of the thermal pad 510 and the bottom plate 516 no gap is present between them and the thermal pad 510 comes in direct contact with the bottom plate 516 through the embossed bubbles 520. An upper surface of the extended portion of the thermal pad 510 comes in direct contact with the lower surface of the embossed bubbles 520.
[057] Further, the coupling of the thermal pad 510 and the bottom 516 provides contact of the embossed bubbles 520 with the cell tabs 506 via the thermal pad 510. The contact of embossed bubbles 520 with the cell tabs 506 by using the arrangement of the cooling plate 512 provides thermal enhancement of the battery pack 500 such that the heat generated by the battery cells 502 and cell tabs 506 is directly taken out by the coolant.
[058] Further, the cooling plate 512 includes heat sink fins 522 present on the bottom surface of the cover plate 602. The heat sink fins are present in the separation gaps that are between the separation column 518 of the cover plate. Each of the heat sink fins 522 are an extended portion on the cover plate 602 in the downward direction (i.e. a direction towards the cell tabs 506). Each of the heat sink fins 522 extends towards the bottom plate 516. The heat sink fins 522 are embedded on the cover plate 514 such that heat sink fins 522 and the embossed bubbles 520 are concentric during the coupling of the bottom plate 516 and the cover plate 514. After the coupling of the bottom plate 516 and the cover plate 514, a gap is present between the embossed bubbles 520 and the heat sink fins 522 through which the coolant flows. Further, after the coupling of the bottom plate 516 and the cover plate 514, the separation columns 518 are in contact with the bottom plate 516. The arrangement of the heat sink fins 522 in the cooling plate 512 eliminates the possibility of creating of stagnant coolant regions in a gap that is between the embossed bubbles 520 and the heat sink fins 522.
[059] Fig. 6 illustrate a cross-sectional view of the cover plate 600 (same as the cover plate 202 of Fig. 2). The cross-sectional view of the cooling plate 600 describes a heat sink fins 602 (same as the heat sink fins 306 of Fig. 3), fillet 604. In a non-limiting embodiment of the present disclosure, the cooling plate 600 comprises a plurality of heat sink fins 602 with fillets 604 extending from the cover plate 606 towards the plurality of embossed bubbles. In particular, the cooling plate 600 includes heat sink fins 602 with fillets 604 at each of the heat sink fins 602. The fillets 604 at the heat sink fins 602 includes a U-shaped channel profile. Each of the fillets 604 is an extended portion of the cover plate 606 which extends towards a respective embossed bubble. Each of fillets 604 extends towards the respective embossed bubble such that a gap is present between each of the fillets 604 and the respective embossed bubble. This gap allows the coolant to be flow through the gap. The U-shaped channel profile altered the flow pattern of the coolant such that the flow is smoothened near the bottom of the heat sink fins 602 to eliminate the possibility of creation of stagnant coolant regions between the embossed bubbles and the heat sink fins 602. Further, the U-shaped channel profile of the fillets 604 reduces the constriction resistance and contributes to the overall thermal enhancement.
[060] These examples are presented herein for purposes of illustration, and not limitation. Further, the boundaries of the functional building blocks have been arbitrarily defined herein for the convenience of the description. Alternative boundaries can be defined so long as the specified functions and relationships thereof are appropriately performed.
[061] In the description of the present invention, it is also to be noted that, unless otherwise explicitly specified or limited, the terms “disposed,” “mounted,” and “connected” are to be construed broadly, and may for example be fixedly connected, detachably connected, or integrally connected. Either mechanically or electrically. They may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
[062] Modifications to embodiments of the present disclosure described in the foregoing are possible without departing from the scope of the present disclosure as defined by the accompanying claims. Expressions such as “including”, “comprising”, “incorporating”, “have”, “is” used to describe and claim the present disclosure are intended to be construed in a non-exclusive manner, namely allowing for items, components or elements not explicitly described also to be present. Reference to the singular is also to be construed to relate to the plural where appropriate.
[063] Although embodiments have been described with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More particularly, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the present disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, alternative uses will also be apparent to those skilled in the art.
WE CLAIM:
1. A fluid-flow cooling plate (400) for a battery pack, the cooling plate (400) comprises:
a cover plate (402);
a bottom plate (404), wherein the cover plate (402) and the bottom plate (404) are spaced apart;
at least one separation column (406) configured to form a coolant flow path (408) for a coolant; and
a plurality of embossed bubbles (410) located along the coolant flow path (408), wherein the plurality of embossed bubbles (410) is configured to fill a cavity created between a plurality of cell tabs and the cooling plate (400) for facilitating quick heat exchange between the plurality of cell tabs and the cooling plate (400), and wherein the plurality of cell tabs and the cooling plate (400) are spaced apart by a cell holder.
2. The cooling plate (400) as claimed in claim 1, wherein the cover plate (402) and the bottom plate (404) are fixed together.
3. The cooling plate (400) as claimed in claim 1, wherein the at least one separation column (404) is placed vertically between the cover plate (402) and the bottom plate (404) to form the coolant flow path (408).
4. The cooling plate (400) as claimed in claim 3, wherein the at least one separation column (406) extends along a length of the cover plate (402) and the bottom plate (404).
5. The cooling plate (400) as claimed in claim 1, wherein the plurality of embossed bubbles (410) is extending outward from the bottom plate (404).
6. The cooling plate (400) as claimed in claim 5, wherein the plurality of embossed bubbles (410) is concentric to the plurality of cells of the battery pack.
7. The cooling plate (400) as claimed in claim 1, wherein the cooling plate (400) comprises a plurality of heat sink fins with fillets extending from the cover plate (402) to the plurality of embossed bubbles (410).
8. The cooling plate (400) as claimed in claim 7, wherein each heat sink fin for the plurality of heat sink fins is concentric to an embossed bubble from the plurality of embossed bubbles (410).
9. The cooling plate (400) as claimed in claim 7, wherein the plurality of heat sink fins is configured to obstruct flow of the coolant and to rapidly exchange heat between the coolant and the cooling plate (400).
10. The cooling plate (400) as claimed in claim 7, wherein the plurality of heat sink fins with fillets are configured to facilitate movement of the coolant from a stagnant region of the plurality of embossed bubbles (410).
11. The cooling plate (400) as claimed in claim 1, wherein the cooling plate (400) comprises a coolant inlet hose and a coolant outlet hose.
ABSTRACT
COOLING PLATE FOR ENERGY STORAGE SYSTEM
The present disclosure describes a fluid-flow cooling plate 400 includes a cover plate 402, a bottom plate 404. The cover plate 402 and the bottom plate 404 are spaced apart. The cooling plate 400 further includes at least one separation column 406 configured to form a coolant flow path 408 for a coolant. The cooling plate 400 further includes a plurality of embossed bubbles 410 located along the coolant flow path 408. The plurality of embossed bubbles 410 is configured to fill a cavity created between a plurality of cell tabs (such as the cell tabs 106 of Fig. 1) and the cooling plate 400 for facilitating quick heat exchange between the cell tabs 106 and the cooling plate 400. the plurality of cell tabs and the cooling plate (400) are spaced apart by a cell holder.

FIG. 4
,CLAIMS:WE CLAIM:
1. A fluid-flow cooling plate (400) for a battery pack, the cooling plate (400) comprises:
a cover plate (402);
a bottom plate (404), wherein the cover plate (402) and the bottom plate (404) are spaced apart;
at least one separation column (406) configured to form a coolant flow path (408) for a coolant; and
a plurality of embossed bubbles (410) located along the coolant flow path (408), wherein the plurality of embossed bubbles (410) is configured to fill a cavity created between a plurality of cell tabs and the cooling plate (400) for facilitating quick heat exchange between the plurality of cell tabs and the cooling plate (400), and wherein the plurality of cell tabs and the cooling plate (400) are spaced apart by a cell holder.
2. The cooling plate (400) as claimed in claim 1, wherein the cover plate (402) and the bottom plate (404) are fixed together.
3. The cooling plate (400) as claimed in claim 1, wherein the at least one separation column (404) is placed vertically between the cover plate (402) and the bottom plate (404) to form the coolant flow path (408).
4. The cooling plate (400) as claimed in claim 3, wherein the at least one separation column (406) extends along a length of the cover plate (402) and the bottom plate (404).
5. The cooling plate (400) as claimed in claim 1, wherein the plurality of embossed bubbles (410) is extending outward from the bottom plate (404).
6. The cooling plate (400) as claimed in claim 5, wherein the plurality of embossed bubbles (410) is concentric to the plurality of cells of the battery pack.
7. The cooling plate (400) as claimed in claim 1, wherein the cooling plate (400) comprises a plurality of heat sink fins with fillets extending from the cover plate (402) to the plurality of embossed bubbles (410).
8. The cooling plate (400) as claimed in claim 7, wherein each heat sink fin for the plurality of heat sink fins is concentric to an embossed bubble from the plurality of embossed bubbles (410).
9. The cooling plate (400) as claimed in claim 7, wherein the plurality of heat sink fins is configured to obstruct flow of the coolant and to rapidly exchange heat between the coolant and the cooling plate (400).
10. The cooling plate (400) as claimed in claim 7, wherein the plurality of heat sink fins with fillets are configured to facilitate movement of the coolant from a stagnant region of the plurality of embossed bubbles (410).
11. The cooling plate (400) as claimed in claim 1, wherein the cooling plate (400) comprises a coolant inlet hose and a coolant outlet hose.