Description:FIELD
The present disclosure relates to a component for a battery pack assembly, and more particularly relates to a cooling plate for a vehicle battery pack assembly including a plurality of battery cells.
BACKGROUND
The background information herein below relates to the present disclosure but is not necessarily prior art.
A battery cell has been considered as a clean, efficient and environmentally friendly power source for electric vehicles, hybrid vehicles and various other applications. Generally, the battery pack used in the vehicles are a rechargeable type of battery pack i.e., a plurality of lithium-ion battery cells are packed in the battery pack assembly to provide sufficient power to operate the electric vehicle or for other applications.
During operation as well as while charging and discharging, the battery packs or batteries are known to generate extreme heat. When overheated or otherwise exposed to high-temperature environments, undesirable effects impact the operation of the battery pack. Therefore, a cooling plate is typically used with the battery packs to overcome the undesirable overheating or undercooling conditions and to maintain the battery pack assemblies to regulate the cell temperature within an ideal temperature range.
However, the conventional cooling plates are provided with a plurality of asymmetrical channels. The presence of the asymmetrical channels in the cooling plate leads to a non-uniform cooling of the battery cells. Also, the conventional cooling plates are provided with throttles across the channels to maintain the desired flow rate of coolant. However, throttling cause an increase in the pressure difference across the cooling channels, and as a result, the power needed to pump coolant through the different channels increases.
Further, in the conventional cooling plate, there is a tendency that due to the presence of throttles in the channels, the cross-section of the different channels may get non-uniform, which also lead to increase in the pressure drop across the channels of the cooling plate. Furthermore, in the conventional cooling plate with throttles used for flow distribution, manufacturing variations can lead to the non-uniform flow distribution across channels.
Thus, there is felt a need for a cooling plate for a battery pack assembly 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 a cooling plate for a battery pack assembly.
Another object of the present invention is to provide a cooling plate for a battery pack assembly that has symmetric cooling channels.
Yet another object of the present invention is to provide a cooling plate for a battery pack assembly that minimizes the pressure drop across the channels of the cooling plate.
Still another object of the present invention is to provide a cooling plate for a battery pack assembly that facilitates uniform and even cooling of the battery cells.
Yet another object of the present invention is to provide a cooling plate for a battery pack assembly that requires compact packaging space.
Still another object of the present invention is to provide a cooling plate for a battery pack assembly that facilitates cooling of the battery cell; terminals.
Yet another object of the present invention is to provide a cooling plate for a battery pack assembly that avoids leakages between the cooling channels.
Still another object of the present invention is to provide a cooling plate for a battery pack assembly that minimizes the flow rate deviation of coolant.
Yet another object of the present invention is to provide a cooling plate for a battery pack assembly that facilitates uniform distribution of coolant across different channels.
SUMMARY
The present disclosure envisages a cooling plate for a battery pack assembly. The cooling plate comprises a first portion, a second portion, a center portion, at least one inlet port, a first outlet port, a second outlet port and a plurality of channels housed in the first portion and the second portion. The plurality of channels comprises a first primary channel, a second primary channel, a first lateral channel, a second lateral channel, a first plurality of branching channels, a second plurality of branching channels, a first secondary channel, and a second secondary channel. The inlet port is defined in the center portion, and leading to an inlet passage. The inlet port is configured to receive coolant therein. The first primary channel is configured to extend longitudinally along the first portion of the cooling plate, and is further configured to be in fluid communication with the inlet passage. The second primary channel is configured to extend longitudinally along the second portion of the cooling plate, and is further configured to be in fluid communication with the inlet passage. The first outlet port and the second outlet port are defined along the center portion and are configured for discharging coolant.
In an embodiment, the cooling plate is configured with a first plate, and a second plate. The first plate abuts the second plate and brazed, or laser welded together to form the cooling plate. The first plate is stamped with the channels, and the second plate is configured with at least one flat surface to abut an operative end of a plurality of battery cells.
In an embodiment, coolant is configured to be received through the inlet port at a first predetermined temperature in the range of 20°C to 30°C.
In an embodiment, the cooling plate is configured to maintain the battery pack assembly at a temperature in the range of 25°C to 35°C.
In an embodiment, coolant is configured to be discharged through the outlet ports at a second predetermined temperature in the range of 25°C to 35°C.
Further, the first lateral channel is configured to extend laterally along the first portion and is further configured to be in fluid communication with the first primary channel. The second lateral channel is configured to extend laterally along the second portion and is further configured to be in fluid communication with the second primary channel. The first plurality of branching channels are meandering on the first portion, and are further configured to be in fluid communication with the first lateral channel to enable the flow of coolant across the first portion. The second plurality of branching channels are meandering on the second portion, and are further configured to be in fluid communication with the second lateral channel to enable the flow of coolant across the second portion. The first secondary channel is configured to laterally extend along the first portion, and further configured to be in fluid communication with the first plurality of branching channels to receive the discharge coolant therein. The second secondary channel is configured to laterally extend along the second portion, and is further configured to be in fluid communication with the second plurality of branching channels to receive the discharge coolant therein. A first outlet passage is provided for transmitting coolant from the first secondary channel to the first outlet port, and a second outlet passage is provided for transmitting coolant from the secondary channel to the second outlet port.
In an embodiment, the first portion and the second portion of the cooling plate have a symmetric configuration.
In an embodiment, the first plurality of branching channels and the second plurality of branching channels are configured to be bent in a U-shaped turn at operative corners.
In an embodiment, the first portion, the second portion and the center portion are configured with a plurality of mounting holes, to receive at least one fastener therein.
In an embodiment, the first plurality of branching channels and the second plurality of branching channels are configured with at least one merge channel within the proximity of the at least one mounting holes.
In an embodiment, the cooling plate is selected from a group of materials consisting of any grade of Aluminum, or Steel.
In an embodiment, coolant is selected from a group of liquid consisting of water, a refrigerant, or ethylene glycol.
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWING
A cooling plate for a battery pack assembly, of the present disclosure will now be described with the help of the accompanying drawing, in which:
Figure 1 illustrates a conventional cooling plate for battery pack assembly;
Figure 2 illustrates a cooling plate for battery pack assembly in accordance with an embodiment of the present disclosure;
Figure 3a illustrates a sectional view of a first portion of the cooling plate assembly in accordance with an embodiment of the present disclosure;
Figure 3b illustrates a sectional view of a second portion of the cooling plate assembly in accordance with an embodiment of the present disclosure;
Figure 4a illustrates a sectional view of a cooling plate without a U turn and a bypass passage; and
Figure 4b illustrates a sectional view of a cooling plate with a U turn and a bypass passage in accordance with an embodiment of the present disclosure.
LIST OF REFERENCE NUMERALS USED IN DETAILED DESCRIPTION AND DRAWING
100’ cooling plate (prior art)
100 cooling plate (present disclosure)
100a first plate
100b second plate
50a first portion
50b second portion
50c center portion
10 inlet port
12a First outlet port
12b Second outlet port
14a first primary channel
14b second primary channel
16a first lateral channel
16b second lateral channel
18a First plurality of branching channels
18b Second plurality of branching channels
20a first secondary channel
20b second secondary channel
24 wavy profile
26a first sub-branch channel
26b second sub-branch channel
28 U-shaped turn
30 mounting holes
32 merge channel
34 throttle (prior art)
36 channel (prior art)
38 bypass passage
42a first outlet passage
42b second outlet passage
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.
Figure 1 illustrates a conventional cooling plate (100’) for the battery pack assembly. Typically, a cooling plate is employed with the battery packs to overcome the undesirable overheating or undercooling conditions and to maintain the battery pack assemblies to regulate the cell temperature within an ideal temperature range. However, the conventional cooling plate (100’) is provided with a plurality of asymmetrical channels (36). Further, due to the presence of asymmetrical channels (36) in the cooling plate, it leads to a pressure drop in coolant around the corners or turns in the channels, and thus results in a non-uniform cooling of the battery cells. Also, the conventional cooling plates (100’) are provided with throttles (34) across the channels to maintain the desired flow rate of coolant. However, these throttles (34) increase the pressure drop across the cooling channels, and as a result, the power required to pump coolant through the different channels increases.
In order to address the aforementioned problems, the present disclosure envisages a cooling plate (100) for a battery pack assembly as shown in FIG. 2. According to the present disclosure, the cooling plate (100) comprises of a first plate (100a) and a second plate (100b). The first plate (100a) is stamped with a plurality of channels, and the second plate (100b) is configured with at least one flat surface. The first plate (100a) abuts the second plate (100b) and brazed, or laser welded together to form the cooling plate (100) with the plurality of channels therebetween. An operative surface of the second plate (100b) is allowed to abut an operative end of a plurality of battery cells. The cooling plate (100) is defined by a first portion (50a), a second portion (50b) and a center portion (50c). The center portion (50c) is configured with at least one inlet port (10), whereas the first portion (50a) and the second portion (50b) are configured with a first outlet port (12a) and a second outlet port (12b).
In an embodiment, the center portion (50c) is configured to operatively and symmetrically split the cooling plate (100) into the first portion (50a) and the second portion (50b). Thus, the first portion (50a) and the second portion (50b) have a symmetrical configuration. As a result, there is least coolant pressure drop across the channels and thus, facilitates uniform cooling of the battery pack assembly.
In a preferred embodiment, at least one operative top edge of the first plate (100a) is configured with a wavy profile (24). Advantageously, the wavy profile (24) facilitates a desired space for mounting different fitments over the cooling plate (100).
With continued reference to the Figure 2, a sectional view of the cooling plate (100) is shown in Figure 3a and Figure 3b. The cooling plate (100) comprises the inlet port (10), two outlet ports (12a, 12b), a first primary channel (14a), a second primary channel (14b), a first lateral channel (16a), a second lateral channel (16b), a first plurality of branching channels (18a), a second plurality of branching channels, (18b) a first secondary channel (20a), and a second secondary channel (20b). The inlet port (10) is defined in the center portion (50c), and leading to define a first inlet passage (40a) and a second inlet passage (40b). The inlet port (10) is allowed to receive a coolant therein and is configured to bifurcate coolant in the first primary channel (14a) and the second primary channel (14b). The first primary channel (14a) extends longitudinally along the first portion (50a) of the cooling plate, whereas the second primary channel (14b) extends longitudinally along the second portion (50b) of the cooling plate.
In an embodiment, the first primary channel (14a) and the second primary channel (14b) are in fluid communication with the inlet passage.
In an embodiment, coolant is configured to be received through the inlet port (10) at a first predetermined temperature in the range of 20°C to 30°C.
Further, the first lateral channel (16a) extends laterally along the first portion (50a) of the cooling plate, and is further configured to be in fluid communication with an operative end of the first primary channel (14a). The second lateral channel (16b) is allowed to extend laterally along the second portion (50b) of the cooling plate, and is further configured to be in fluid communication with an operative end of the second primary channel (14b). The first lateral channel (16a) and the second lateral channel (16b) are provided with at least one bypass passage (38) thereon. The bypass passage (38) helps in maintaining the uniform rate of flow across the sub-channels. Figure 3a illustrates a sectional view of the first portion (50a) of the cooling plate assembly and Figure 3b illustrates a sectional view of the second portion (50b) of the cooling plate assembly in accordance with an embodiment of the present disclosure.
In an embodiment, the first lateral channel (16a) and the second lateral channel (16b) are configured with one bypass passage (38) to divert the flow of coolant therethrough.
Further, the cooling plate (100) further comprises a first sub-branch channel (26a) and a second sub-branch channel (26b). The first sub-branch channel (26a) is configured along the first portion (50a) and the second sub-branch channel (26b) is configured in the second portion (50b) of the cooling plate. The first sub-branch channel (26a) is configured to be in fluid communication with the first plurality of branching channels (18a) and the first lateral channel (16a), whereas the second sub-branch channel (26b) is configured to be in fluid communication with the second plurality of branching channels (18b) and the second lateral channel (16b).
In an embodiment, the first sub-branch channel (26a) and the second sub-branch channel (26b) are configured to be parallelly oriented to the first lateral channel (16a) and the second lateral channel (16b).
Further, the first plurality of branching channels (18a) are meandering on the first portion (50a), and are further configured to be in fluid communication with the first lateral channel (16a) to distribute coolant across the first portion (50a). The second plurality of branching channels (18b) are meandering on the second portion (50b), and are further configured to be in fluid communication with the second lateral channel (16b) to distribute coolant across the second portion (50b). To mount the different fitments on the cooling plate (100), a plurality of mounting holes (30) are configured within the first plurality of branching channels (18a) and the second plurality of branching channels (18b). The mounting holes (30) are configured to receive at least one fastener therein. Also, the first plurality of branching channels (18a) and the second plurality of branching channels (18b) are provided with a U-shaped turn (28), so as to avoid the pressure drop across the corners or around the turn. The U-shaped turn (28) facilitates the uniform distribution of coolant across the first plurality of the branching channels (18a) and the second plurality of the branching channels (18b) without any throttling.
Advantageously, to accommodate the plurality of mounting holes (30), a plurality of merge channels (32) are configured within the proximity of the first plurality of branching channels (18a) and the second plurality of branching channels (18b). Some channels of the first and second plurality of branching channels (18a, 18b) are merged locally near to the mounting holes (30) location to avoid the chance of leakage failure. The cross-section area at the merged region is equal to the sum of the cross-sectional area of the two individual channels before merging. Thereby, the merger of channels facilitates in maintaining uniform flow rate of coolant and ensures no additional pressure loss due to the mounting holes and thereby the battery cells are uniformly cooled.
Also, the symmetric configuration of the first portion (50a) and the second portion (50b) provides enough packaging space for the assembly of different reinforcement members.
Further, the first secondary channel (20a) is configured to laterally extend along the first portion (50a), and further configured to be in fluid communication with the first plurality of branching channels (18a) to receive the discharge coolant after passing through the first plurality of branching channels (18a). Also, the second secondary channel (20b) is configured to laterally extend along the second portion (50b), and is further configured to be in fluid communication with the second plurality of branching channels (18b) to receive the discharge coolant after passing through the second plurality of branching channels (18b).
In an embodiment, the cross-section of the first primary channel (14a) and the second primary channel (14b), the first lateral channel (16a) and the second lateral channel (16b), the first sub-branch channel (26a) and the second sub-branch channel (26b) are 25.2mm x 6.0mm.
In an embodiment, the cross-section of the first secondary channel (20a) and the second secondary channel (20b), is 18.5mm x 6.0mm.
In an embodiment, the cross-section of the first plurality of branching channels (18a) and the second plurality of branching channels (18b) are 13.7mm x 4.0mm.
Further, the first outlet port (12a) and the second outlet port (12b) are defined along the center portion (50c). The first outlet port (12a) is in communication to a first outlet passage (42a), along the first portion (50a) of the cooling plate, whereas the second outlet port (12b) is in communication to a second outlet passage (42b), along the second portion (50b) of the cooling plate. The first outlet passage (42a) is in fluid communication with the first secondary channel (20a) to receive the discharge coolant from the first plurality of branching channels (18a), whereas the second outlet passage (42b) is in fluid communication with the second secondary channel (20b) to receive the discharge coolant from the second plurality of branching channels (18b). The first outlet passage (42a) and the second outlet passage (42b) are configured to discharge coolant received therein.
In an operative configuration of the cooling plate (100), the first outlet passage (42a) and the second outlet passage (42b) are configured to be in fluid communication with the first secondary channel (20a) and the second secondary channel (20b), to thereby discharge coolant through the outlet ports (12a, 12b).
In an embodiment, the cooling plate (100) is configured to maintain the battery pack assembly at a cell temperature in the range of 25°C to 35°C.
In an embodiment, the cooling plate is configured to maintain the battery cell pack temperature less than 45°C at all extreme conditions.
In an embodiment, coolant is configured to be discharged through the outlet ports (12a, 12b) at a second predetermined temperature in the range of 25°C to 35°C. The discharged coolant is further passed through a suitable heat exchanging unit to cool down coolant to the first desired temperature.
In an embodiment, the channels are configured to be aligned longitudinally along the cooling plate and the battery cells are configured to be aligned transversely to the channels. Thus, the channels in the cooling plate facilitates to achieve the uniform cooling of the battery cells across the battery packs and even cooling of each cell along its length.
In an embodiment, the cooling plate (100) is selected from a group of material consisting of any grade of Aluminum or Steel.
In an embodiment, coolant is selected from a group of liquid consisting of water, a refrigerant, or ethylene glycol.
EXAMPLE
In an exemplary embodiment, a cooling plate is selected without a U turn and a bypass passage, and a cooling plate is selected with the U turn and the bypass passage (as disclosed by the present disclosure). The flow rate is simulated (using CFD) across the first portion of both the cooling plates. The flow rate deviation around the channels are compared for both the configuration of the cooling plates and the result illustrates that the cooling plate without the U turn and the bypass passage has a high rate of flow deviation, whereas the cooling plate as disclosed by the present disclosure with the U turn and the bypass passage has the low flow rate deviation (within the acceptable range <±6.0%). Figure 4a illustrates a sectional view of a cooling plate without the U turn and the bypass passage and Figure 4b illustrates a sectional view of a cooling plate with the U turn and the bypass passage in accordance with the present disclosure. The flow rate deviation for the cooling plate without the U turn and the bypass passage and for the cooling plate with the U turn and the bypass passage (present disclosure) is tabulated below in table 1 and table 2.
Table 1 illustrates the flow rate deviation for cooling plate without the U turn and the bypass passage:
Channel Flow rate deviation
Channel 1-6 -7.4%
Channel 1-5 -5.8%
Channel 1-4 -4.2%
Channel 1-3 0.5%
Channel 1-2 6.5%
Channel 1-1 9.2%
Table 2 illustrates the flow rate deviation for the cooling plate with the U turn and the bypass passage as disclosed in the present disclosure:
Channel Flow rate deviation
Channel 1-6 0%
Channel 1-5 -3.0%
Channel 1-4 -2.5%
Channel 1-3 -2.0%
Channel 1-2 -3.4%
Channel 1-1 5.6%
From the above data of table 1 and table 2, it is concluded that the cooling plate with U turn and at least one bypass passage keeps the overall flow deviation within the acceptable range 8.6% or ±6% (-3% to 5.6%).
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 cooling plate for a battery pack assembly, that:
• has symmetric cooling channels and thus offers ease in manufacturing;
• minimizes the pressure drop across the channels of the cooling plate due to the presence of U-shaped channels with bypass passage across the corners or at the turn;
• facilitates uniform and even cooling of the battery cells;
• requires compact packaging space;
• facilitates the cooling of the battery cell terminals;
• minimizes the flow rate deviation of coolant;
• avoids leakages between the channels;
• facilitates uniform distribution of coolant across different channels of the cooling plate; and
• minimizes the pressure drop across the corners or sharp turn of the channel.
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. A cooling plate (100) for a battery pack assembly, said cooling plate (100) comprising:
• a first portion (50a), a second portion (50b) and a center portion (50c);
• at least one inlet port (10) for receiving a coolant, said inlet port (10) defined in said center portion (50c), and leading to an inlet passage;
• a first outlet port (12a) for discharging said coolant;
• a second outlet port (12b) for discharging said coolant;
• a plurality of channels housed in said first portion (50a) and said second portion (50b) comprising:
o a first primary channel (14a), configured to extend longitudinally along said first portion (50a), and said first primary channel (14a) configured to be in fluid communication with said inlet passage;
o a second primary channel (14b), configured to extend longitudinally along said second portion (50b), and said second primary channel (14b) configured to be in fluid communication with said inlet passage;
o a first lateral channel (16a), configured to extend laterally along said first portion (50a), and said first lateral channel (16a) configured to be in fluid communication with said first primary channel (14a);
o a second lateral channel (16b), configured to extend laterally along said second portion (50b), and said second lateral channel (16b) configured to be in fluid communication with said second primary channel (14b);
o a first plurality of branching channels (18a), meandering on said first portion (50a), and said first plurality of branching channels (18a) configured to be in fluid communication with said first lateral channel (16a) to facilitate the flow of said coolant across said first portion (50a);
o a second plurality of branching channels (18b), meandering on said second portion (50b), and said second plurality of branching channels (18b) configured to be in fluid communication with said second lateral channel (16b) to facilitate the flow of said coolant across said second portion (50b);
o a first secondary channel (20a), configured to laterally extend along said first portion (50a), and said first secondary channel (20a) configured to be in fluid communication with said first plurality of branching channels (18a) to receive the discharge coolant therein; and
o a second secondary channel (20b), configured to laterally extend along said second portion (50b), and second secondary channel (20b) configured to be in fluid communication with said second plurality of branching channels (18b) to receive the discharge coolant therein,
• a first outlet passage (42a) for transmitting said coolant from said first secondary channel (20a) to said first outlet port (12a); and
• a second outlet passage (42b) for transmitting said coolant from said second secondary channel (20b) to said second outlet port (12b).
2. The cooling plate (100) as claimed in claim 1, wherein said cooling plate is configured with a first plate (100a), and a second plate (100b), said first plate (100a) abuts on said second plate (100b) and brazed or laser welded together to form said cooling plate (100).
3. The cooling plate (100) as claimed in claim 2, wherein said first plate (100a) is stamped with said channels, and said second plate (100b) is configured with at least one flat surface to abut an operative surface of a plurality of battery cells.
4. The cooling plate (100) as claimed in claim 2, wherein at least one operative top edge of said first plate (100a) is configured with a wavy profile (24) to provide space for mounting different fitments therein.
5. The cooling plate (100) as claimed in claim 1, wherein said first portion (50a) and said second portion (50b) of said cooling plate have a symmetrical configuration.
6. The cooling plate (100) as claimed in claim 1, wherein said cooling plate comprises a first sub-branch channel (26a) and a second sub-branch channel (26b), said first sub-branch channel (26a) is configured along said first portion (50a) and said second sub-branch channel (26b) is configured along said second portion (50b) of said cooling plate.
7. The cooling plate (100) as claimed in claim 6, wherein said first sub-branch channel (26a) is configured to be in fluid communication with said first plurality of branching channels (18a) and said first lateral channel (16a), and said second sub-branch channel (26b) is configured to be in fluid communication with said second plurality of branching channels (18b) and said second lateral channel (16b).
8. The cooling plate (100) as claimed in claim 6, wherein said first sub-branch channel (26a) and said second sub-branch channel (26b) are configured to be parallelly oriented to said first lateral channel (16a) and said second lateral channel (16b).
9. The cooling plate (100) as claimed in claim 1, wherein said first plurality of branching channels (18a) and said second plurality of branching channels (18b) are configured to be bent in a U-shaped turn (28) at operative corners.
10. The cooling plate (100) as claimed in claim 1, wherein said first portion (50a), said second portion (50b) and said center portion (50c) are configured with a plurality of mounting holes (30), to receive at least one fastener therein.
11. The cooling plate (100) as claimed in claim 1, wherein said first plurality of branching channels (18a) and said second plurality of branching channels (18b) are configured with at least one merge channel (32) within the proximity of said mounting holes (30).
12. The cooling plate (100) as claimed in claim 1, wherein said coolant is configured to be received through said inlet port (10) at a first predetermined temperature in the range of 20°C to 30°C and said coolant is configured to be discharged through said outlet ports (12a, 12b) at a second predetermined temperature in the range of 25°C to 35°C.
13. The cooling plate (100) as claimed in claim 1, wherein said cooling plate is configured to maintain the battery pack assembly at a temperature in the range of 25°C to 35°C.
14. The cooling plate (100) as claimed in claim 1, wherein said channels are configured to be aligned longitudinally along said cooling plate (100) and the battery cells are configured to be aligned transversely to said channels.
15. The cooling plate (100) as claimed in claim 1, wherein said first outlet passage (42a) and said second outlet passage (42b) are configured to be defined along said center portion (50c).
16. The cooling plate (100) as claimed in claim 1, wherein said cooling plate is selected from a group of materials consisting of any grade of Aluminum or Steel.
17. The cooling plate (100) as claimed in claim 1, wherein said coolant is selected from a group of liquids consisting of water, a refrigerant, or ethylene glycol.

Dated this 25th day of January, 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 MUMBAI