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Arrangement To Remove Cooling Plate From Battery Pack, Method Of Removing And Assembling Thereof

Abstract: ABSTRACT ARRANGEMENT TO REMOVE COOLING PLATE FROM BATTERY PACK, METHOD OF REMOVING AND ASSEMBLING THEREOF The present disclosure relates to an arrangement(100) to remove a cooling plate(10) from a battery pack(12). The arrangement(100) comprises an intermediate space(14) defined in between an operative bottom surface of the cooling plate and an operative top surface of the battery pack by means of thermal sealants(16) therebetween; a groove is configured within an operative bottom surface(10c) of the cooling plate; a loop of string(18) is housed within the groove; at least one end portion(18a) of the string loop is configured to be accessible from the top surface(10b) of the cooling plate. The end portion (18a) of string is configured to be pulled away from the cooling plate(10), thereby cutting the thermal sealants(16) and separating the cooling plate at least partially from the operative top surface of the battery pack(12). Advantageously, the arrangement offers ease in the removal of the cooling plate and the cell modules.

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Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
06 July 2023
Publication Number
2/2025
Publication Type
INA
Invention Field
MECHANICAL ENGINEERING
Status
Email
Parent Application

Applicants

MAHINDRA ELECTRIC AUTOMOBILE LIMITED
Mahindra Tower, Pandurang Budhkar Marg, Nr. Doordarshan Kendra, Worli, Mumbai, Mumbai City- 400018, Maharashtra, India

Inventors

1. BASHA, ABUBAKKER SITHICK
AD-Powertrain EV, Mahindra Research Valley, Mahindra World City, Plot No.41/1, Anjur P.O., Chengalpattu-603004, Tamilnadu, India
2. CHALUMURU, MADHU KISHORE
AD-Powertrain EV, Mahindra Research Valley, Mahindra World City, Plot No.41/1, Anjur P.O., Chengalpattu-603004, Tamilnadu, India
3. KANAGARAJU, SASIKUMAR
AD-Powertrain EV, Mahindra Research Valley, Mahindra World City, Plot No.41/1, Anjur P.O., Chengalpattu-603004, Tamilnadu, India
4. BOITA, DHANANJAYA RAO
AD-Powertrain EV, Mahindra Research Valley, Mahindra World City, Plot No.41/1, Anjur P.O., Chengalpattu-603004, Tamilnadu, India

Specification

Description:FIELD
The present disclosure relates to a component for a battery pack assembly, and more particularly to an arrangement for removal of cooling plate from a battery pack assembly.
BACKGROUND
Generally, a cooling plate of a battery pack is adhered to the surface of the battery pack by means of thermal sealants and fastened with a plurality of screws. The cooling plate is in contact with cell modules via the thermal sealant for better heat conductivity and to avoid gaps. The thermal sealants have an adhesive property that sticks the cooling plate with the cell modules. However, when the battery pack requires servicing or maintenance, it becomes necessary to detach the cooling plate from the battery pack's surface. Due to the adhesive nature of the thermal sealant, removing the cooling plate becomes challenging and often results in damaging the cooling plate and sometimes the cell module.
Further, conventionally, the cooling plate is removed from the surface of the battery pack by using pliers or screwdriver, resulting in damage to the edge of the cooling plate and sometimes breaks the channels of the cooling plate. Thus, the conventional process of removing the cooling plate makes it non-reusable after detachment.
Thus, there is felt a need for an arrangement to remove the cooling plate from the battery pack, method of removing and assembling thereof that alleviates the aforementioned drawbacks.
OBJECTS
Some of the objects of the present disclosure, which at least one embodiment herein satisfies, are as follows:
An object of the present invention is to provide an arrangement to remove the cooling plate from the battery pack.
Another object of the present invention is to provide an arrangement to remove the cooling plate from the battery pack that does not damage the cooling plate while removal.
Still another object of the present invention is to provide an arrangement to remove the cooling plate from the battery pack that is convenient to operate.
Yet another object of the present invention is to provide an arrangement which facilitates ease in service and maintenance activity of the battery pack.
Still another object of the present invention is to provide an arrangement to remove the cooling plate from the battery pack which is economical.
Yet another object of the present invention is to provide an arrangement which is easy to maintain and assemble.
Still another object of the present invention is to provide an arrangement to remove the cooling plate from the battery pack which offers reusability of the cooling plate.
Yet another object of the present invention is to provide an arrangement to remove the cooling plate from the battery pack which offers ease in the removal of the cooling plate and the cell modules.
Still another object of the present invention is to provide an arrangement which does not require extra space for mounting the string.
Yet another object of the present invention is to provide a method of removing a cooling plate from a battery pack.
Still another object of the present invention is to provide a method of assembling a cooling plate on a battery pack.
SUMMARY
The present disclosure envisages an arrangement to remove a cooling plate from a battery pack. The cooling plate is configured with a plurality of channels on an operative top surface. The arrangement comprises an intermediate space defined in between an operative bottom surface of the cooling plate and an operative top surface of the battery pack by means of thermal sealants therebetween; a groove is configured within an operative bottom surface of the cooling plate adjacent to the periphery of the plurality of channels; a loop of string is embedded across an outer boundary surrounding the thermal sealants and housed within the groove; at least one end portion of the string loop is configured to be accessible from the top surface of the cooling plate in an operative configuration of the arrangement.
In an embodiment, the arrangement includes a plurality of retention means and is configured to be fastened to an operative top surface of the cooling plate to protrude within the groove. The string is configured to be retained within the groove by means of the plurality of retention means. The retention means is defining at least one corner point within the groove for the string.
Further, the string is configured to be pulled away from the cooling plate, thereby cutting the thermal sealants and separating the cooling plate at least partially from the operative top surface of the battery pack.
In an embodiment, the string is configured to slide across the thermal sealants with the removal of the retention means and is further configured to cut the sealants to enable the separation of the cooling plate from the battery pack.
In an embodiment, the retention means is selected from a group consisting of fasteners, screws, bolts, anchors, clips, clamps, hooks, pins, studs, threaded rods, inserts screw or any combination thereof.
In an embodiment, the arrangement includes at least one guiding means and is configured to be mounted within the intermediate space to guide the string across the thermal sealants in a desired direction.
In an embodiment, the string is selected from a group consisting of glass fiber, Nylon, Aramid fiber (typically synthetic polymer-based fiber like polyamide) or any combination thereof. The string has the diameter in the range of 0.5mm to 1.0mm, and the length in the range of 4.5meter to 5.5meter depending on the surface area of the battery pack.
In an embodiment, the predefined intermediate space is in the range of 0.5mm-1.5mm, and the thickness of the thermal sealant in the range of 0.5mm-1.5mm.
Further, the present disclosure also envisages a method of removing a cooling plate from a battery pack. The method comprises the following steps:
• providing the battery pack with the cooling plate attached thereon, the cooling plate is affixed to the battery pack by using thermal sealants defining the intermediate space therebetween;
• providing the loop of the string within the groove defined on an bottom operative surface of the cooling plate circumscribing the thermal sealants within the intermediate space;
• pulling the string away from the cooling plate to cut across the surface of the thermal sealants;
• allowing the string to slide between the cooling plate and the battery pack across the thermal sealants; and
• separating the cooling plate from the battery pack.
In an embodiment, the method of removing the cooling plates, further includes:
• removing the plurality of retention means from an operative top surface of the cooling plate, the retention means is fastened to the operative top surface of the cooling plate to protrude within the groove and the string is retained within the groove by means of the plurality of retention means;
• removing a plurality of screws from an operative top surface of the cooling plate; and
• pulling the string through at least one cavity provided on the cooling plate, the cavity receives at least one ends of string thereon.
In an embodiment, the string is being pulled by using the at least one holding means. The holding means is secured on an operative top of the at least one cavity and holding the ends of the string after passing through the cavity.
Further, the present disclosure also envisages a method of assembling a cooling plate on a battery pack. The method comprises the following steps:
• providing the at least one thermal sealant for the battery pack;
• affixing the thermal sealants on the operative surface of the battery pack containing cell modules therein;
• providing the cooling plate, the cooling plate has an operative top surface containing the plurality of channels and an operative bottom surface having a flat surface with a groove configured thereon operatively surrounding the channels;
• providing the string within the groove;
• receiving the ends of the string from the operative top surface of the cooling plate in an operative configuration; and
• fixing the cooling plate over the operative surface of the thermal sealants by projecting the bottom surface of the cooling plate on the operative surface of the thermal sealants.
In an embodiment, the method of assembly further includes:
• providing the plurality of retention means;
• fastening the retention means on the operative top surface of the cooling plate;
• allowing the retention means to protrude within the groove to define at least one corner point on the operative bottom surface;
• stretchably arranging the string along the at least one corner points covering outer boundaries of the thermal sealants; and
• passing the least one ends of the string through at least one cavity provided on the cooling plate.
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWING
An arrangement to remove the cooling plate from the battery pack, method of removing and assembling thereof, of the present disclosure will now be described with the help of the accompanying drawing, in which:
Figure 1 illustrates a perspective exploded isometric view of battery pack assembly with a plurality of cell modules, thermal sealants and a cooling plate thereon in accordance with an embodiment of the present disclosure.
Figure 2a illustrates a perspective view of an operative top surface of the cooling plate with a plurality of channels and a cavity configured thereon in accordance with an embodiment of the present disclosure.
Figure 2b illustrates a perspective view of an operative bottom surface of the cooling plate having a flat surface and an arrangement of a string thereon in accordance with an embodiment of the present disclosure.
Figure 3 illustrates an enlarged perspective view of a retention means to stretchably hold the string thereon.
Figure 4 illustrates an exploded isometric view of the cooling plate with the string and retention means in accordance with an embodiment of the present disclosure.
Figure 5 illustrates an enlarged perspective view of a guiding means mounted in the operative bottom surface of the cooling plate in accordance with an embodiment of the present disclosure.
Figure 6 illustrates an enlarged perspective view of a cavity with a holding means and a cap attached thereon in accordance with an embodiment of the present disclosure.
Figure 7A-Figure 7C illustrate a perspective view of list of steps involved in method of separating the cooling plate from the battery pack in accordance with an embodiment of the present disclosure.
LIST OF REFERENCE NUMERALS USED IN DETAILED DESCRIPTION AND DRAWING
100 arrangement to remove a cooling plate
50 assembly of cooling plate and battery pack
10 cooling plate
10a plurality of channels
10b operative top surface of cooling plate
10c operative bottom surface of cooling plate
10d inlet port of channels
10e outlet port of channel
12 battery pack
14 intermediate space
16 thermal sealants
18 string
18a one end portion of string
18b initial position of string
18c intermediate position of string
20 retention means
20a retention housing
22 cavity
22a curvature surface of the cavity
24 holding means
26 cap
28 guiding means
30 cell modules
32 Threadably fastened
34 brazed
36 curvature surface of the battery pack
38 screws
DETAILED DESCRIPTION
Embodiments, of the present disclosure, will now be described with reference to the accompanying drawing.
Embodiments are provided so as to thoroughly and fully convey the scope of the present disclosure to the person skilled in the art. Numerous details are set forth, relating to specific components, and methods, to provide a complete understanding of embodiments of the present disclosure. It will be apparent to the person skilled in the art that the details provided in the embodiments should not be construed to limit the scope of the present disclosure. In some embodiments, well-known processes, well-known grader structures, and well-known techniques are not described in detail.
The terminology used, in the present disclosure, is only for the purpose of explaining a particular embodiment and such terminology shall not be considered to limit the scope of the present disclosure. As used in the present disclosure, the forms “a”, “an”, and “the” may be intended to include the plural forms as well, unless the context clearly suggests otherwise. The terms “comprises”, “comprising”, “including”, and “having”, are open ended transitional phrases and therefore specify the presence of stated features, integers, steps, operations, elements, modules, units and/or components, but do not forbid the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The particular order of steps disclosed in the method and process of the present disclosure is not to be construed as necessarily requiring their performance as described or illustrated. It is also to be understood that additional or alternative steps may be employed.
When an element is referred to as being “mounted on”, “engaged to”, “connected to”, or “coupled to” another element, it may be directly on, engaged, connected or coupled to the other element. As used herein, the term “and/or” includes any and all combinations of one or more of the associated listed elements.
The terms first, second, third, etc., should not be construed to limit the scope of the present disclosure as the aforementioned terms may be only used to distinguish one element, component, region or section from another component, region, or section. Terms such as first, second, third etc., when used herein do not imply a specific sequence or order unless clearly suggested by the present disclosure.
Terms such as “inner”, “outer”, “beneath”, “below”, “lower”, “above”, “upper”, and the like, may be used in the present disclosure to describe relationships between different elements as depicted from the figures.
Typically, the cooling plate of a battery pack is adhered to the surface of the battery pack by means of thermal sealants and fastened with a plurality of screws. However, when the battery pack requires servicing or maintenance, it becomes necessary to detach the cooling plate from the battery pack's surface. Due to the adhesive nature of the thermal sealant, removing the cooling plate becomes challenging and often results in damaging the cooling plate and sometimes the cell module. Further, conventionally, the cooling plate is removed from the surface of the battery pack by using pliers or screwdriver, resulting in damage to the edge of the cooling plate, damage to the FIP gasket surrounding the cooling plate and sometimes breaks the channels of the cooling plate. Thus, the conventional process of removing the cooling plate makes it non-reusable after detachment.
In order to address the aforementioned problems, the present disclosure envisages an arrangement (100) to remove the cooling plate (10) (hereinafter referred as arrangement (100)) from the battery pack (12) assembly (50). The arrangement (100) for the remov.al of the cooling plate (10) is discussed with reference to figure 1 to figure 7. The cooling plate (10) is defined with an operative top surface (10b), and an operative bottom surface (10c). A plurality of channels (10a) is configured on the operative top surface (10b) with an inlet port (10d) and an outlet port (10e) and the operative bottom surface (10c) is a flat surface which is operatively in contact with a plurality of cell modules (30) packed in the battery pack (12). A number of thermal sealant (16)s are arranged on the top surface (10b) of the cell module to affix and adhere the bottom surface (10c) of the cooling plate (10) thereon to thereby define an intermediate space (14). Figure 1 illustrates a perspective exploded isometric view of battery pack (12) assembly with a plurality of cell modules (30), thermal sealant (16)s and a cooling plate (10) thereon in accordance with an embodiment of the present disclosure.
The arrangement (100) for removal of the cooling plate (10) is provided with the intermediate space (14) defined between the operative bottom surface (10c) of the cooling plate (10) and the operative top surface (10b) of the battery pack (12). The arrangement (100) to remove the cooling plate (10) is accessible from the operative top surface (10b) of the cooling plate (10) in an operative configuration. The arrangement (100) comprises a plurality of retention means (20), a groove, a plurality of guiding means (28), and at least one string (18). Figure 2a illustrates a perspective view of an operative top surface (10b) of the cooling plate (10) with a plurality of channels (10a) and a cavity (22) configured thereon, and Figure 2b illustrates a perspective view of an operative bottom surface (10c) of the cooling plate (10) having a flat surface and an arrangement (100) of a string (18) thereon in accordance with an embodiment of the present disclosure.
In an embodiment, the retention means (20) is selected from a group consisting of fasteners, screws, bolts, anchors, clips, clamps, hooks, pins, studs, threaded rods, inserts screw or any combination thereof.
In an embodiment, the predefined intermediate space (14) is in the range of 0.5mm-1.5mm.
In an embodiment, the thickness of the thermal sealant (16) in the range of 0.5mm-1.5mm.
Further, the operative bottom surface (10c) of the cooling plate (10) is configured with a groove. The groove is configured to operatively circumscribe the plurality of channels (10a) of the cooling plate (10) and is further configured to receive and accommodate the string (18) thereon. The loop of the string (18) loop is embedded across an outer boundary surrounding the thermal sealant (16) and housed within the groove. The plurality of retention means (20) is configured to be threadably fastened (32) to a plurality of retention housing (20a) provided on an operative top surface (10b) of the cooling plate (10) and is further configured to protrude out within the groove. The retention means (20) is defining at least one corner point within the groove for the string (18). The string (18) is configured to be retained within the groove by means of the plurality of retention means (20). Figure 3 illustrates an enlarged perspective view of a retention means (20) to stretchably hold the string (18) thereon. Figure 4 illustrates an exploded isometric view of the cooling plate (10) with the string (18) and retention means (20) in accordance with an embodiment of the present disclosure.
In an embodiment, the plurality of retention housings (20a) is brazed to the operative top surface (10b) of the cooling plate (10). Each of the retention means (20) is threadably fastened to each of the retention housing (20a).
In an embodiment, the string (18) is configured to be stretchably fitted within the groove along the corner points covering the outer boundaries of the thermal sealant (16).
In an embodiment, the string (18) is selected from a group consisting of glass fiber, Nylon, Aramid fiber (typically synthetic polymer-based fiber like polyamide) or any combination thereof.
In an embodiment, the string (18) has a diameter in the range of 0.5mm to 1.0 mm, and length in the range of 4.5meter to 5.5meter depending on the surface area of the battery pack (12).
Further, the arrangement (100) also includes at least one guiding means (28), at least one holding means (24), and at least one cap (26). The guiding means (28) is configured to be mounted to the operative bottom surface (10c) of the cooling plate (10) within the intermediate space (14), and is further configured to guide the string (18) across the thermal sealant (16) in a desired direction in an operative configuration of the arrangement (100). Figure 5 illustrates an enlarged perspective view of a guiding means (28) mounted in the operative bottom surface (10c) of the cooling plate (10) in accordance with an embodiment of the present disclosure.
The ends of the string (18) surrounding the retention means (20) and the guiding means (28) is received through a cavity (22) of the cooling plate (10). The one holding means (24) is configured on the operative top surface (10b) of the cooling plate (10) to hold the ends of the string (18) after passing through the cavity (22). The holding means (24) holds the string (18) tightly surrounding the thermal sealant (16) and along the retention means (20) and the guiding means (28) in an operative configuration. The cap (26) is configured to be mounted on an operative top of the cavity (22) covering the holding means (24). Advantageously, the cap (26) provides leak-proof configuration to the cooling plate (10) and does not allow dust or water to enter the battery pack (12). In addition, the end portion (18a) of the string (18) loop is accessible from the top surface (10b) of cooling plate (10) by means of the holding means (24) in an operative configuration of the arrangement (100). Figure 6 illustrates an enlarged perspective view of a cavity (22) with a holding means (24) and a cap (26) attached thereon in accordance with an embodiment of the present disclosure.
In an embodiment, the cavity (22) is configured with a curvature surface (22a) to smoothly guide the string (18) in an operative configuration of the arrangement (100).
In an embodiment, the operative edge of the battery pack (12) near to the periphery of the retention means (20) is configured with a curvature surface (36) to smoothly guide the string (18) in the operative configuration of the arrangement (100).
In an operative configuration of the arrangement (100), the string (18) is configured to slide across the thermal sealant (16) with the removal of the retention means (20) and is further configured to cut the sealants to a defined distance therebetween. Further, the string (18) is configured to be pulled away from the cooling plate (10) by means of the holding means (24), thereby the string (18) travels within the intermediate space (14) across the thermal sealant (16) and cut the thermal sealant (16). Thus, the arrangement (100) of the present disclosure facilitates at least partial separation of the cooling plate (10) from the operative top surface (10b) of the battery pack (12) and helps ease in the removal of the cooling plate (10).
Advantageously, the arrangement (100) disclosed by the present disclosure facilitates ease of separation and thus ease of removal of the cooling plate (10) from the battery pack (12) without incurring any damage to the cooling plate (10), the cell module or even the form-in-place (FIP) gasket surrounding the cooling plate (10).
Further, the present disclosure also envisages a method of removing the cooling plate (10) from the battery pack (12). Figure 7A-Figure 7C illustrates a perspective view of list of steps involved in method of separating the cooling plate (10) from the battery pack (12) in accordance with an embodiment of the present disclosure. The method comprises the following steps:
• providing the battery pack (12) with the cooling plate (10) attached thereon, the cooling plate (10) is affixed to the battery pack (12) by using thermal sealant (16) defining the intermediate space (14) therebetween;
• providing the loop of the string (18) within the groove defined on a bottom operative surface (10c) of the cooling plate (10) circumscribing the thermal sealant (16) within the intermediate space (14);
• pulling the loop of the string (18) away from the cooling plate (10) to cut across the surface of the thermal sealant (16);
• allowing the loop of the string (18) to slide between the cooling plate (10) and the battery pack (12) across the thermal sealant (16); and
• separating the cooling plate (10) from the battery pack (12).
In an embodiment, the method of removing the cooling plate (10), further includes:
• removing the plurality of retention means (20) from an operative top surface (10c) of the cooling plate (10), the retention means (20) is fastened to the operative top surface (10b) of the cooling plate (10) to protrude within the groove and the string (18) is retained within the groove by means of the plurality of retention means (20);
• removing a plurality of screws from an operative top surface (10b) of the cooling plate (10); and
• pulling the string (18) through at least one cavity (22) provided on the cooling plate (10), the cavity (22) receives at least one ends of string (18) thereon.
In an embodiment, the step-III of figure 7b illustrates initial travelling of the string (18) from initial position of the string (18b) towards (18c) near to the periphery of the retention means (20) and towards the intermediate position of the string (18) (18c) within the intermediate space (14).
In an embodiment, the string (18) is being pulled by using the at least one holding means (24). The holding means (24) is secured on an operative top of the at least one cavity (22) and holding the ends of the string (18) after passing through the cavity (22).
Further, the present disclosure also envisages a method of assembling the cooling plate (10) on the battery pack (12). The method of assembly comprises the following steps:
• providing the at least one thermal sealant (16) for the battery pack (12);
• affixing the thermal sealant (16) on the operative surface of the battery pack (12) containing cell modules (30) therein;
• providing the cooling plate (10), the cooling plate (10) has an operative top surface (10b) containing the plurality of channels (10a) and an operative bottom surface (10c) having a flat surface with a groove configured thereon operatively surrounding the channels (10a);
• providing the string (18) within the groove;
• receiving the ends of the string (18) from the operative top surface (10b) of the cooling plate (10) in an operative configuration; and
• fixing the cooling plate (10) over the operative surface of the thermal sealant (16) by projecting the bottom surface (10c) of the cooling plate (10) on the operative surface of the thermal sealant (16).
In an embodiment, the method of assembly further includes:
• providing the plurality of retention means (20);
• fastening the retention means (20) on the operative top surface (10b) of the cooling plate (10);
• allowing the retention means (20) to protrude within the groove to define at least one corner point on the operative bottom surface (10c);
• stretchably arranging the string (18) along the at least one corner points covering outer boundaries of the thermal sealant (16); and
• passing the least one ends of the string (18) through at least one cavity (22) provided on the cooling plate (10).
In an embodiment, the method of assembly includes:
• providing at least one holding means (24);
• holding said ends of said string (18) after passing through said at least one cavity (22);
• providing a cap (26); and
• mounting said cap (26) by securing said holding means (24) on said cavity (22).
In an embodiment, the method of assembly further includes:
• providing a plurality of screws; and
• fastening said cooling plate (10) with the battery pack (12) by using the plurality of screws.
The foregoing description of the embodiments has been provided for purposes of illustration and not intended to limit the scope of the present disclosure. Individual components of a particular embodiment are generally not limited to that particular embodiment, but, are interchangeable. Such variations are not to be regarded as a departure from the present disclosure, and all such modifications are considered to be within the scope of the present disclosure.
TECHNICAL ADVANCEMENTS AND ECONOMIC SIGNIFICANCE
The present disclosure described herein above has several technical advantages including, but not limited to, the realization of the arrangement to remove the cooling plate from the battery pack, the method of removing and the method of assembling thereof, that:
• does not damage the cooling plate while removal;
• is convenient to operate;
• facilitates ease in service and maintenance activity of the battery pack;
• is economical;
• is easy to maintain and assemble;
• offers reusability of the cooling plate;
• offers easy removal of the cooling plate and the cell modules;
• does not damage the cooling plate or the battery pack; and
• does not require extra space for mounting the string.
The embodiments herein and the various features and advantageous details thereof are explained with reference to the non-limiting embodiments in the following description. Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein.
The foregoing description of the specific embodiments so fully reveal the general nature of the embodiments herein that others can, by applying current knowledge, readily modify and/or adapt for various applications such specific embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described in terms of preferred embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modification within the spirit and scope of the embodiments as described herein.
The use of the expression “at least” or “at least one” suggests the use of one or more elements or ingredients or quantities, as the use may be in the embodiment of the disclosure to achieve one or more of the desired objects or results.
While considerable emphasis has been placed herein on the components and component parts of the preferred embodiments, it will be appreciated that many embodiments can be made and that many changes can be made in the preferred embodiments without departing from the principles of the disclosure. These and other changes in the preferred embodiment as well as other embodiments of the disclosure will be apparent to those skilled in the art from the disclosure herein, whereby it is to be distinctly understood that the foregoing descriptive matter is to be interpreted merely as illustrative of the disclosure and not as a limitation. , Claims:WE CLAIM:
1. An arrangement (100) to remove a cooling plate from a battery pack, said arrangement (100) comprising:
• an intermediate space (14) defined in between an operative bottom surface (10c) of said cooling plate and an operative top surface of the battery pack;
• a thermal sealant (16) to fill said intermediate space (14) to seal said cooling plate to the top surface of the battery pack;
• a groove (not shown) configured in said operative bottom surface of said cooling plate (10c) adjacent to the periphery of the plurality of channels (10a);
• a loop of string (18) embedded across an outer boundary surrounding the thermal sealants (16) and housed within said groove; and
• at least one end portion (18a) of said loop (18) configured to be accessible from a top surface (10b) of said cooling plate in an operative configuration of said arrangement (100),
said end portion (18a) of said string (18) configured to be pulled away from said cooling plate (10), thereby enabling said loop to cut through the thermal sealant (16) and separate said cooling plate (10) at least partially from the operative top surface of the battery pack (12).
2. The arrangement (100) as claimed in claim 1, includes a plurality of retention means (20) and is configured to be fastened to an operative top surface (10b) of said cooling plate to protrude within said groove, said retention means (20) is selected from a group consisting of fasteners, screws, bolts, anchors, clips, clamps, hooks, pins, studs, threaded rods, inserts screw or any combination thereof.
3. The arrangement (100) as claimed in claim 2, wherein said string (18) is configured to be retained within said groove by means of said plurality of retention means (20), wherein said retention means (20) is defining at least one corner point within said groove for said string (18).
4. The arrangement (100) as claimed in claim 3, wherein said string (18) is configured to be stretchably fitted within said groove along said corner points covering outer boundaries of the thermal sealants (16), said string (18) is configured to slide across the thermal sealants (16) with the removal of said retention means (20) and is further configured to cut the sealants (16) to enable the separation of said cooling plate (10) from the battery pack (12).
5. The arrangement (100) as claimed in claim 1, said cooling plate (10) includes at least one cavity (22) to receive said at least one ends (18a) of said string thereon, at least one holding means (24) is configured to be secured on an operative top of said at least one cavity (22) and is further configured to hold the ends (18a) of said string after passing through said cavity (22).
6. The arrangement (100) as claimed in claim 5, wherein at least one cap (26) is configured to be mounted on an operative top of said cavity (22) covering said holding means (24), said cap (26) facilitates leak-proof configuration to said cooling plate (10).
7. The arrangement (100) as claimed in claim 1, includes at least one guiding means (28) and is configured to be mounted within said intermediate space (14) to guide said string (18) across the thermal sealants (16) in a desired direction.
8. The arrangement (100) as claimed in claim 1, wherein said string (18) is selected from a group consisting of glass fiber, Nylon, Aramid fiber (typically synthetic polymer-based fiber like polyamide) or any combination thereof, said string (18) is having the diameter in the range of 0.5mm to 1.0mm, the length in the range of 4.5meter to 5.5meter depending on the surface area of the battery pack (12).
9. The arrangement (100) as claimed in claim 1, wherein said predefined intermediate space (14) is in the range of 0.5mm-1.5mm, and the thickness of the thermal sealant (16) in the range of 0.5mm-1.5mm.
10. A method of removing a cooling plate (10) from a battery pack (12), said method comprising the following steps:
• providing the battery pack (12) with a cooling plate (10) attached thereon, said cooling plate (10) affixed to the battery pack (12) by using thermal sealant (16) defining an intermediate space (14) therebetween;
• providing a string (18) within a groove defined on a bottom operative surface (10c) of said cooling plate circumscribing the thermal sealants (16) within said intermediate space (14);
• pulling said string (18) away from said cooling plate (10) to cut across the surface of the thermal sealants (16);
• allowing said string (18) to slide between said cooling plate (10) and the battery pack (12) across the thermal sealants (16); and
• separating said cooling plate (12) from the battery pack (16).
11. The method as claimed in claim 10, said method further includes removing a plurality of retention means (20) from an operative top surface (10b) of said cooling plate (12), said retention means (20) is fastened to the operative top surface (10b) of said cooling plate to protrude within said groove and said string (18) is retained within said groove by means of said plurality of retention means (20).
12. The method as claimed in claim 10, includes removing a plurality of screws (38) from an operative top surface (10b) of said cooling plate.
13. The method as claimed in claim 10, said method of pulling said string (18) is performed through at least one cavity (22) provided on said cooling plate (10), said cavity (22) receives at least one ends portion (18a) of string thereon.
14. The method as claimed in claim 13, said method of pulling said string (18) is performed by using at least one holding means (24), said holding means (24) secured on an operative top of said at least one cavity (22) and holding the ends (18a) of said string after passing through said cavity (22).
15. A method of assembling a cooling plate (10) on a battery pack (12), said method of assembly comprising the following steps:
• providing at least one thermal sealant (16) for the battery pack (12);
• affixing the thermal sealant (16) on an operative surface of the battery pack (12) containing cell modules (30) therein;
• providing a cooling plate (10), said cooling plate having an operative top surface (10b) containing a plurality of channels (10a) and an operative bottom surface (10c) having a flat surface with a groove configured thereon operatively surrounding the channels (10a);
• providing at least one loop of string (18) within said groove;
• receiving ends portion (18a) of said string from the operative top surface (10b) of said cooling plate in an operative configuration; and
• fixing said cooling plate (10) over the operative surface of the thermal sealant (16) by projecting the bottom surface (10c) of said cooling plate on the operative surface of the thermal sealants (16).
16. The method of assembly as claimed in claim 15, further includes:
• providing a plurality of retention means (20);
• fastening said retention means (20) on said operative top surface (10b) of said cooling plate;
• allowing said retention means (20) to protrude within said groove to define at least one corner point on said operative bottom surface (10c);
• stretchably arranging said string (18) along said at least one corner points covering outer boundaries of the thermal sealant (16); and
• passing said least one ends (18a) of said string through at least one cavity (22) provided on said cooling plate (10).
17. The method of assembly as claimed in claim 15, includes:
• providing at least one holding means (24);
• holding said ends portion (18a) of said string after passing through said at least one cavity (22);
• providing a cap (26); and
• mounting said cap (26) by securing said holding means (24) on said cavity (22).
18. The method of assembly as claimed in claim 15, further includes:
• providing a plurality of screws (38); and
• fastening said cooling plate (10) with the battery pack (12) by using the plurality of screws (36).

Dated this 06th day of July, 2023

_______________________________
MOHAN RAJKUMAR DEWAN, IN/PA – 25
of R.K.DEWAN & CO.
Authorized Agent of Applicant

TO,
THE CONTROLLER OF PATENTS
THE PATENT OFFICE, AT CHENNAI

Documents

Application Documents

# Name Date
1 202321045453-STATEMENT OF UNDERTAKING (FORM 3) [06-07-2023(online)].pdf 2023-07-06
2 202321045453-REQUEST FOR EXAMINATION (FORM-18) [06-07-2023(online)].pdf 2023-07-06
3 202321045453-PROOF OF RIGHT [06-07-2023(online)].pdf 2023-07-06
4 202321045453-FORM 18 [06-07-2023(online)].pdf 2023-07-06
5 202321045453-FORM 1 [06-07-2023(online)].pdf 2023-07-06
6 202321045453-DRAWINGS [06-07-2023(online)].pdf 2023-07-06
7 202321045453-DECLARATION OF INVENTORSHIP (FORM 5) [06-07-2023(online)].pdf 2023-07-06
8 202321045453-COMPLETE SPECIFICATION [06-07-2023(online)].pdf 2023-07-06
9 202321045453-FORM-26 [07-07-2023(online)].pdf 2023-07-07
10 Abstract.jpg 2023-12-22
11 202321045453-FORM-8 [11-11-2025(online)].pdf 2025-11-11