WO2023187824A1

WO2023187824A1 - A dynamic battery cooling system and method thereof

Info

Publication number: WO2023187824A1
Application number: PCT/IN2023/050298
Authority: WO
Inventors: Arnob N P; Vidyadhar Gurram
Original assignee: Aryabhatta Motors Private Limited
Priority date: 2022-03-29
Filing date: 2023-03-28
Publication date: 2023-10-05

Abstract

The present invention relates to a smart and dynamic battery cooling system (100) for motor vehicle batteries with a simple and cost-effective design. The battery cooling system comprises a cooling fan (102) which is configured to move on at least one guiding channel (104/1, 104/2). The guiding channels (104/1, 104/2) are mounted into the at least one supporting structures (106/1, 106/2) on either side using at least one sliding unit (108/1). The sliding unit (108/1) facilitates the movement of the guiding channels (104/1, 104/2) perpendicular to the movement of the cooling fan (102). Thus, the cooling fan (102) movement and position are controlled to cool and maintain the temperature of each and every cell in a safe zone and distribute the generated heat evenly in the battery pack assembly.

Description

A dynamic battery cooling system and method thereof

The field of invention generally relates to cooling systems for batteries in motor vehicles. More specifically, it relates to a smart and dynamic cooling system for motor vehicle batteries that cools and maintains the temperature of each and every cell within a desired temperature range and distributes heat evenly in the battery pack assembly.

In general, hybrid vehicles or electric vehicles are typically powered by one or more battery packs which may comprise a plurality of rechargeable batteries or cells. Such battery pack cells are housed in a battery pack holder and are usually connected in series by way of electrical connectors. The battery pack may be recharged without removing the battery pack from the vehicle, or by removing and replacing the depleted battery pack with a fully charged replacement battery pack.

A fast-charging battery pack reduces the recharge time from the typical six to eight hours required using conventional battery charging techniques. This eliminates the need to repeatedly swap out and replace depleted battery packs with charged battery packs. However, fast charging may lead to generating different temperatures and thermal gradients in a battery pack, which if not properly controlled may result in degraded performance and a shortened lifespan of the battery pack. Thus, the heat generated by the batteries during charging and discharge ng affects the overall performance of any system where the battery packs are used.

Most of the heat generated by the battery packs is accumulated at the tabs of the cells. The heat produced by different cells is different throughout the battery pack. Conventional vehicle-mounted batteries are provided with various cooling systems. In existing systems, there are two types of air cooling systems; one is a passive cooling system and the other is an active cooling system. In passive cooling systems, the heat is carried out by the conduction of the battery pack holder and forced convection due to the air moving outside. In active cooling systems, the air is pumped in from outside the battery pack holder. This air moves around the battery pack and cools the cells.

However, the existing cooling systems cool the batteries uniformly, even though the cells discharge simultaneously at different rates i.e., the heat produced by each cell is different throughout the battery pack. The uniform cooling systems do not consider the difference in heat generation and therefore may be inefficient in cooling all cells in the battery pack. Moreover, the existing battery cooling systems are manufactured with complex designs which require an extensive number of components and thus require considerable resources for installation, repair and maintenance.

Thus, in light of the above discussion, it is implied that there is a need for a battery cooling system that provides dynamic cooling by maintaining temperatures of each and every battery cell within a desired temperature range and does not suffer from the problems discussed above.

Object of Invention

The principal object of this invention is to provide a dynamic cooling system and method for motor vehicle batteries which cools each and every cell and maintains a temperature in the battery pack assembly within a desired temperature range.

Another object of the invention is to provide a battery cooling system that distributes heat evenly in the battery pack assembly.

A further object of the invention is to provide a smart battery cooling system with a simple design, and which adapts to battery requirements.

Another object of the invention is to design a battery cooling system which is easy to manufacture and assemble.

Another object of the invention is to design a battery cooling system which provides cooling of the entire cells with increased efficiency at low cost.

This invention is illustrated in the accompanying drawings, throughout which, like reference letters indicate corresponding parts in the various figures.

The embodiments herein will be better understood from the following description with reference to the drawings, in which:

Fig. 1

illustrates a schematic view of a battery cooling system for dynamic cooling of every cell in a battery pack, in accordance with an embodiment;

Fig. 2A

illustrates a schematic view of a cooling fan to be installed in the battery pack assembly, in accordance with an embodiment

Fig. 2B

illustrates a schematic view of a guiding channel of the cooling fan, in accordance with an embodiment;

Fig. 2C

illustrates a schematic view of a fan supporting structure, in accordance with an embodiment;

Fig. 2D

illustrates a schematic view of the sliding unit of the cooling fan, in accordance with an embodiment;

Fig. 3A

illustrates a top view of the battery cooling system, in accordance with an embodiment;

Fig. 3B

illustrates a front view of the battery cooling system, in accordance with an embodiment;

Fig. 3C

illustrate an isometric view of placement of the battery cooling system 100, in accordance with an embodiment;

Fig. 4

illustrates a flow chart of a controlling system for controlling the cooling fan, in accordance with an embodiment;

Fig. 5

illustrates a flow chart of a dynamic battery cooling method for vehicles, in accordance with an embodiment.

The embodiments herein and the various features and advantageous details thereof are explained more fully with reference to the non-limiting embodiments that are illustrated in the accompanying drawings and/or detailed in the following description. Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein may be practiced and to further enable those of skill in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein.

The present invention discloses a system and method for smart and dynamic battery cooling that facilitates the cooling of every cell in the battery pack assembly. The proposed design provides a simple dynamic battery cooling system that distributes heat evenly in the battery pack assembly. The invention has been explained with its use in rechargeable battery pack assemblies in motor vehicles and can be used in any battery pack set-up.

Battery packs use several different battery types, including cylindrical, prismatic, ultra-capacitor, and pouch. A battery pack assembly may comprise a plurality of identical cells which are connected in series or parallel. Any number of cells may be bundled in a close-packed arrangement to snuggly fit against a retainer which may provide an enclosure substantially surrounding the bundled cells.

In battery pack construction, tabs are used to connect the electrodes of the cells to external circuits. The tabs enable current to flow from the cathode through the tab to the electrical connection and terminal contact, and finally out into an external circuit. The electrode tabs are typically small metallic strips that are welded onto current collectors. When the battery is charged or discharged, the temperature around the electrode tabs is much higher than other places in the battery pack assembly, due to variations in current concentration. These high temperatures can affect the performance, cycle life, and safety of the battery.

illustrates a schematic view of a battery cooling system 100 enabling dynamic cooling of every cell in the battery pack assembly.

In an embodiment, the battery cooling system 100 is an assembled structure which comprises at least one cooling fan 102 mounted on at least two guiding channels 104/1, 104/2. The ends of the at least two guiding channels 104/1, 104/2 are fixed into at least two supporting structures 106/1, 106/2 on either side using at least one sliding unit 108/1, 108/2 (108/2 not shown in the figure).

illustrates a schematic view of the cooling fan 102, in accordance with an embodiment.

In an embodiment, the at least one cooling fan 102 may be either a custom-built axial fan or centrifugal fan or bladeless fan and comprises protrusions 202/1, 202/2. The cooling fan 102 is mounted on the at least one guiding channels 104/1, 104/2 through the at least two protrusions 202/1, and 202/2. The at least two protrusions 202/1, and 202/2 facilitate the movement of the at least one cooling fan 102 on the at least two guiding channels 104/1, and 104/2 from one end to the other end.

In an embodiment, the movement of the at least one cooling fan 102 may be controlled using an actuator such as a miniature motor. In other embodiment, the at least one cooling fan 102 may be powered by the battery pack itself on which the cooling fan 102 is mounted or by an external power source.

In an embodiment, the angular speed of the miniature motor which powers the cooling fan 102 may be varied for controlling the airflow from the cooling fan 102. The movement of the cooling fan 102 may be either linear or elliptical or curvature etc. Further, the at least one cooling fan 102 angles may be adjusted to tilt at various angles for providing optimal airflow through the required cell.

In an embodiment, the at least one cooling fan 102 coordinates may be calculated using a microprocessor to control the movement of the at least one cooling fan 102.

The at least one cooling fan 102 represented in is for illustration purposes. However, one or more cooling fans 102 may be employed based on the requirement. Further, various designs of the at least one cooling fan 102 may be implemented and may be designed with or without blades.

In an embodiment, the at least one cooling fan 102 may be positioned at one or more places on the battery pack, such as top surfaces, bottom surfaces, side surfaces, top edges, bottom edges, and side edges based on the cell configuration and requirement. The advantage of positioning the at least one cooling fan 102 on multiple sides and edges is that the battery cooling system 100 can be modified according to shapes, sizes and requirements of different applications of the battery pack assembly.

illustrates a schematic view of the guiding channel 104, in accordance with an embodiment.

In an embodiment, the at least one guiding channel 104 may be designed with a groove 204. The cross-section of the groove 204 is designed in such a way as to match the cross-section of the at least one protrusion 202 to facilitate mounting of the at least one cooling fan 102. This guiding channel 104 structure allows the at least one cooling fan 102 to move along through it to reach a desired zone of the battery pack assembly, for providing cooling to the desired zone of the battery pack assembly.

In an embodiment, the at least two guiding channels 104/1, and 104/2 may be designed in any straight or cross-section manner such as rectangular, quadrilateral etc. The at least two guiding channels 104/1, and 104/2 may be shaped in any regular or irregular shape based on the requirement and can be mounted at any angle in the battery pack assembly. The at least one guiding channel 104 may be configured to tilt at any angle along with the at least one cooling fan 102 for providing optimal cooling. The guiding channel may also be curved in case of a curve-shaped battery pack assembly.

illustrates a schematic view of the supporting structure 106, in accordance with an embodiment.

In an embodiment, The at least one supporting structure 106 is designed with multiple fastening slots 206/1, 206/2 and a path 208. The fastening slots 206/1, and 206/2 facilitate attaching the supporting structure 106 to the battery pack assembly holder using appropriate fasteners. The guiding channels 104/1, and 104/2 are fixed into the path 208 through the sliding unit 108. The sliding unit 108 moves along the path 208 enabling the guiding channels 104/1, and 104/2 to move along with the sliding unit 108. The at least one supporting structure 106 provides support and movement direction to the sliding unit 108. This allows the cooling fan 102 to move to the required zone for providing airflow cooling.

In an embodiment, the at least one supporting structure 106 may comprise different actuating mechanisms or components that allow the sliding unit 108 to move in the path 208.

illustrates a schematic view of the sliding unit 108, in accordance with an embodiment.

In an embodiment, the sliding unit 108 is designed with two channel ports 210/1 and 210/2. The channel ports 210/1 and 210/2 are configured to receive and fix the guiding channels 104/1, and 104/2 into them. The cross-section of the channel ports 210/1 and 210/2 are designed to mate with a corresponding cross-section of the guiding channels 104/1, and 104/2.

In an embodiment, apart from the two channel ports 210/1 and 210/2 represented in the figure, the sliding unit 108 may be designed with multiple channel ports 210 to receive multiple guiding channels 104 based on the requirement.

The sliding unit 108 offers two main functions. One is the sliding unit 108 maintains the distance between the two guiding channels 104/1, and 104/2 on which the cooling fan 102 moves. The other is the sliding unit 108 also provides movements in the direction perpendicular to the motion of the cooling fan 102 along the guiding channels 104/1, and 104/2.

The sliding unit 108 is fixed inside the path 208 of the supporting structure 106 and moves along the path 208 perpendicularly to the motion of the cooling fan 102. This facilitates the cooling fan 102 to reach the desired zone for cooling.

In an embodiment, each sliding unit 108 may comprise different actuating mechanisms or components corresponding to the actuating mechanisms or components of the supporting structure 106 to achieve movement of the sliding unit 108 in the path 208. In an embodiment, the actuating mechanisms to achieve movement of the sliding unit 108 comprises at least one rack and pinion, a worm and sector, a cam and follower, a recirculating ball, an pitman arm, linear bearings, a sliding dovetail, a telescoping slides, a box sliders, an sliding gates, a hydraulic slides, and a friction slides mechanisms.

In an embodiment, example, the sliding unit 108 may comprises an actuator (not shown) configured to provide movement of the least one cooling fan 102, and a belt (not shown) connected to the actuator and the at least one cooling fan 102, wherein the belt is configured to transform the rotary motion from the actuator to the least one cooling fan 102 movement.

In an embodiment, the at least one sliding unit 108 may be accommodated with at least one rack and pinion mechanism, a worm and sector mechanism, a cam and follower mechanism, a recirculating ball mechanism, a box slider mechanism, a sliding gates mechanism, a hydraulic slides mechanism, and a friction slides mechanism.

In an embodiment, the actuating mechanisms or components enclosed in the supporting structure 106 and the sliding unit 108 may comprise at least one motors, gears, conveyor belts, hydraulic pistons, springs, lock-nut mechanism, scotch-yoke mechanism, and expansion of a soft robot. The movement of the sliding unit 108 may be controlled using an actuator such as a miniature motor. Alternately, the sliding unit 108 may be controlled by the actuator of the cooling fan 102. The sliding unit 108 may be powered using either an external power source or by the battery pack itself.

Figs. 3A and 3B illustrate a top view and a front view of the battery cooling system 100, in accordance with an embodiment.

In an embodiment, the cell configuration of the battery pack assembly may comprise at least one of cylindrical, pocket, box and other types. The designs of components and their movements in the battery pack assembly may be altered based on the cell configuration of the battery pack assembly.

In an embodiment, the proposed assembled battery cooling system 100 may be placed on tabs present on either top or bottom of the group of cells in the battery pack assembly. Since the heat from the cells is released at tabs, the battery cooling system 100 is actuated to control the cooling fan 102 to move to a zone where the heat is to be controlled.

In an embodiment, the speed and angle of the cooling fan 102 may be controlled in such a way as to control the airflow passage from top to bottom of the cells or from bottom to top of the cells or in any other direction. This results in uniform distribution of the cooling air throughout the battery pack assembly, thus cooling each and every cell.

In general, cell balancing of the battery pack assembly is carried out by a battery management system (BMS) installed in the motor vehicle. The cell balancing is performed to make sure that appropriate current is obtained from each cell so that uniform power is supplied to all the components of the vehicle. In some cases, current discharge from a few cells may be at a higher rate when compared to other cells. Due to the higher rate of discharge, high temperatures may generate at that cell region resulting in heat generation when compared to other parts of the cells of the battery pack assembly.

In an embodiment, the total number of cells may be divided into different zones in the battery pack assembly to identify zones with higher temperatures, so that cooling may be provided to that particular zone using the proposed battery cooling system 100. Therefore, current discharge data of the cells from the zones may be obtained by the BMS to identify higher temperatures and control the battery cooling system 100.

In an embodiment, thermal detectors may be placed at optimum positions across the battery pack assembly or placed at each cell to collect the temperature data either from each zone or from each cell. Higher temperatures may be identified from the temperature data to thereby control the battery cooling system 100 for providing cooling to the cells of the battery pack assembly.

In an embodiment, the thermal detectors may be positioned on the guiding channels. When the guiding channels sweep on the battery pack assembly, higher temperature cells or zones can be detected.

In an embodiment, the thermal detectors may comprise at least one of thermistors, thermocouples, and thermostats.

Figs. 3C illustrate an isometric view of placement of the battery cooling system 100, in accordance with an embodiment.

A dynamic battery cooling system 100 is to cool every cell in a battery pack assembly, ensuring that each cell operates within the optimal temperature range. The system 100 is typically placed above the battery pack assembly, wherein the battery pack assembly comprises a plurality of battery cells arranged in a predetermined configuration and a supporting structure for holding the battery cells in place. The dynamic battery cooling system 100 is mounted onto the supporting structures through at least one fastening slot in at least one supporting structure.

In an embodiment, the battery cooling system 100 on may be positioned on one or more places on the battery pack assembly, such as top surfaces, bottom surfaces, side surfaces, top edges, bottom edges, and side edges based on the cell configuration and requirement.

The battery pack assembly is designed to provide efficient and effective cooling of every cell in the pack, thereby improving the overall performance and longevity of the battery system.

illustrates a flowchart of a controlling system 400 for controlling the cooling fan using a microprocessor, in accordance with an embodiment.

In an embodiment, the controlling system 400 comprises the microprocessor. The controlling system 400 is connected to the BMS, multiple thermal detectors such as thermistors or thermocouples, and the cooling fan. The BMS obtains the current discharge rate of each cell from multiple zones of the battery pack assembly.

The thermal detectors may be placed at optimum positions across the battery pack and may record the temperature data. The thermal detectors may detect the temperature of each and every cell or detect the temperature of at least one zone of the battery pack.

At step 402, the BMS or thermistors or thermocouples provide input to the microprocessor. The input may comprise either the current discharge rate or temperature. The microprocessor may be implemented with an algorithm that processes the input and output commands to the cooling fan.

At step 404, the microprocessor receives the input from the BMS or thermistors or thermocouples. If the input is received from the BMS, then the temperature of the cells is calculated from the current discharge rate by using an in-built algorithm. Further, higher temperature cells or zones are identified. If the input is received from the thermistors or thermocouples, then the higher-temperature cells or zones are located.

The algorithm of the microprocessor then calculates the x-coordinate and y-coordinate of the higher temperature cells or zones and determines the moving distance of the cooling fan to reach the calculated coordinates, as depicted at step 406 and 408, and outputs a control signal to alter the position of the cooling fan.

In an embodiment, the algorithm implemented in the microprocessor may be an intelligence algorithm.

At step 410, the actuators of the cooling fan and the sliding unit may receive the control signal from the microprocessor. Once the actuators are activated, the cooling fan slowly moves to the required position in a desired path. The path taken by the cooling fan could be either elliptical or curved or linear or non-linear according to the algorithm which is set in the microprocessor.

In addition, the cooling fan can be tilted to certain degrees, based on the received temperature parameters for providing optimal cooling. Further, the position of the cooling fan may be regularly updated by the microprocessor to make sure that the cooling fan reaches all the places and maintains the temperature of each and every cell within the desired temperature range, in all zones.

In an embodiment, additional control can also be provided, where the speed of the cooling fan can also be controlled to deal with the heat generated. Thus, the moving cooling fan aids in distributing the heat within the battery pack, and the heat can be removed through conduction and convection through the outer surface of the battery pack.

illustrates a method 500 for dynamic battery cooling for vehicles, in accordance with an embodiment. The method 500 begins with providing cooling for a desired zone of the battery pack assembly by at least one cooling fan 102, as depicted at step 502. Subsequently, Thereafter, the method 500 discloses providing a stable and secure platform for the dynamic battery cooling system by connecting at least two supporting structures 106 to the battery pack assembly on either side of at least two guiding channels 104, as depicted at step 504. Thereafter, the method 500 discloses providing a movement for the at least one cooling fan 102 by at least one sliding unit 108 is connected to the at least one supporting structure 106 on either side of the at least two guiding channels 104, as depicted at step 506. Thereafter, the method 500 discloses configuring the at least one cooling fan 102 to move along the at least two guiding channels 104, by at least two protrusions 202 on the at least one cooling fan 102, as depicted at step 508.

Thus, the proposed battery cooling system provides a simple and cost-effective design with few components for motor or hybrid vehicles. The battery cooling system provides smart and dynamic cooling for each and every cell in the battery pack assembly. The proposed smart cooling system detects the heat zones or cells and pulls the heat from that area rather than cooling the entire battery pack uniformly, thereby increasing the efficiency of the battery cooling system.

Applications of the current invention comprise electric or hybrid vehicles with rechargeable battery packs. The dynamic battery cooling system can also be used with any battery set-up used domestically or commercially.

The foregoing description of the specific embodiments will 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 scope of the embodiments as described here.

Claims

A dynamic battery cooling system for vehicles, comprising:
at least one cooling fan (102) configured to provide cooling for a desired zone of a battery pack assembly;
at least two supporting structures (106) are connected to the battery pack assembly on either side of at least two guiding channels (104), which are configured to provide a stable and secure platform for the dynamic battery cooling system;
at least one sliding unit (108) is connected to the at least one supporting structures (106) on either side of the at least two guiding channels (104), wherein the at least one sliding unit (108) configured to provide a movement for the at least one cooling fan (102); and
wherein the at least one cooling fan (102) movement is facilitated by at least two protrusions (202) on the at least one cooling fan (102) which are configured to move along the at least two guiding channels (104).
The system (100) as claimed in claim 1, wherein the at least one sliding unit (108) comprises:
an actuator (not shown) configured to provide movement of the least one cooling fan (102); and
a belt (not shown) connected to the actuator and the at least one cooling fan (102), wherein the belt is configured to transform the rotary motion from the actuator to the least one cooling fan (102) movement.
The system (100) as claimed in claim 2, wherein the actuator comprises a miniature motor, a DC brushless motor, a DC brushed motor, an AC brushless motor, a direct drive motor, a linear motor, a servo motor, and a stepper motor.
The system as claimed in claim 2, wherein the at least one sliding unit (108) may be accommodated with at least one rack and pinion mechanism, a worm and sector mechanism, a cam and follower mechanism, a recirculating ball mechanism, a box slider mechanism, a sliding gates mechanism, a hydraulic slides mechanism, and a friction slides mechanism.
The system as claimed in claim 1, wherein the at least one guiding channel (104) comprises a groove that matches with the cross-section of the at least two protrusions (202) on the at least one cooling fan (102) for mounting the at least one cooling fan (102).
The system as claimed in claim 1, wherein the at least two guiding channels (104) allow the at least one cooling fan (102) to move along the at least two guiding channels (104) to reach a desired zone of the battery pack assembly for providing cooling to the desired zone of the battery pack assembly.
The system as claimed in claim 1, wherein the at least one guiding channel (104) design comprises at least one straight or cross-section manner, rectangular, quadrilateral, or any other regular or irregular shape based on the requirement.
The system as claimed in claim 1, wherein the at least two guiding channels (104) may be positioned on one or more places on the battery pack assembly, such as top surfaces, bottom surfaces, side surfaces, top edges, bottom edges, and side edges based on the cell configuration and requirement.
The system as claimed in claim 1, wherein the at least two supporting structures (106) are designed with one or more fastening slots (206) and a path (208) for mounting and movement of the at least one guiding channel (106).
The system as claimed in claim 1, wherein the battery pack assembly comprises one or more battery cells arranged in a predetermined configuration and a supporting structure for holding the battery cells in place.
The system as claimed in claim 1, wherein the at least two supporting structures (106) are connected to the supporting structure of the battery pack assembly.
The system as claimed in claim 1, wherein the least one cooling fan (102) comprises at least one custom-built axial fan, a centrifugal fan, and a bladeless fan.
The system as claimed in claim 1, wherein the least one cooling fan (102) is powered by the battery pack assembly or by an external power source.
The system as claimed in claim 1, wherein the at least one cooling fan (102) angular speed is varied for controlling the airflow from the least one cooling fan (102).
The system as claimed in claim 1, wherein the movement of the least one cooling fan (102) may be linear, elliptical, or curvature.
The system as claimed in claim 1, wherein the least one cooling fan (102) angle is adjusted to tilt at various angles for providing optimal airflow through the battery pack assembly.
The system as claimed in claim 1, further comprising a battery management system (BMS) connected to the battery pack assembly, configured to monitor the state of charge, temperature, and voltage of each cell in the battery, controlling the charging and discharging of the battery, and providing safety features such as overcharge and over-discharge protection.
The system as claimed in claim 17, wherein the battery management system (BMS) comprises one or more thermal detectors positioned in the battery pack assembly, configured to monitor the temperature of the battery pack.
The system as claimed in claim 18, wherein one or more thermal detectors connected to a microprocessor configured to adjust the speed, direction, and movement of the cooling fan (102), wherein the microprocessor receives inputs from the battery management system (BMS).
The system as claimed in claim 20, wherein one or more thermal detectors may comprise at least one of thermistors, thermocouples, and thermostats.
The system as claimed in claim 1, wherein one or more cooling fans may be employed based on the requirement.
A dynamic battery cooling method for vehicles, comprising:
providing cooling for a desired zone of a battery pack assembly by at least one cooling fan (102);
providing a stable and secure platform for the dynamic battery cooling system by connecting at least two supporting structures (106) to the battery pack assembly on either side of at least two guiding channels (104);
providing a movement for the at least one cooling fan (102) by at least one sliding unit (108) is connected to the at least one supporting structures (106) on either side of the at least two guiding channels (104); and
configuring the at least one cooling fan (102) to move along the at least two guiding channels (104), by at least two protrusions (202) on the at least one cooling fan (102).
The method as claimed in claim 22, comprising the at least one sliding unit (108) comprises:
providing movement of the least one cooling fan (102) by an actuator (not shown); and
configuring to transform the rotary motion from the actuator to the least one cooling fan (102) movement by a belt (not shown) connected to the actuator and the at least one cooling fan (102).
The method as claimed in claim 22, comprising mounting the at least one cooling fan (102) on a groove on the at least one guiding channel (104) which matches with the cross-section of the at least two protrusions (202) on the at least one cooling fan (102).
The method as claimed in claim 22, providing cooling to the desired zone of the battery pack assembly by enabling the at least one cooling fan (102) to move along the at least two guiding channels (104) towards the desired zone.
The method as claimed in claim 22, comprising the at least one supporting structures (106) is designed with one or more fastening slots (206) and a path (208) for mounting and movement of the at least one guiding channel (106).
The method as claimed in claim 22, comprising the battery pack assembly comprises one or more battery cells arranged in a predetermined configuration and a supporting structure for holding the battery cells in place.
The method as claimed in claim 22, comprising connecting the supporting structure of the battery pack assembly by the at least two supporting structures (106).
The method as claimed in claim 22, varying the angular speed of the at least one cooling fan (102) enables control over the airflow from the at least one cooling fan (102).
The method as claimed in claim 22, adjusting the angle of the least one cooling fan (102) to tilt at various angles to provide optimal airflow through the battery pack assembly.
The method as claimed in claim 22, monitoring monitor the state of charge, temperature, and voltage of each cell in the battery, controlling the charging and discharging of the battery, and providing safety features such as overcharge and over-discharge protection, by a battery management system (BMS) connected to the battery pack assembly.
The method as claimed in claim 31, monitoring the temperature of the battery pack, by one or more thermal detectors positioned in the battery pack assembly, wherein the one or more thermal detectors connected to the battery management system (BMS).
The method as claimed in claim 32, adjusting the speed, direction, and movement of the cooling fan (102) by a microprocessor connected to one or more thermal detectors and receives inputs from the battery management system (BMS).