Description:A VENTING STRUCTURE
FIELD OF THE INVENTION
[0001] The present subject matter relates generally to a power source unit. More particularly but not exclusively the present subject matter relates to a venting structure for the power source unit.
BACKGROUND OF THE INVENTION
[0002] Modern electric or hybrid vehicles need one or more power source packs to power the vehicle due to technological advancements. A battery is used as one or more power sources to power a motor, which in turn powers one or more of the vehicle's wheels. The battery pack consists of one or more cells that are electrically coupled by one or more interconnectors. In a module made up of a top casing and a bottom casing, one or more cells are organised. A battery pack is created by joining one or more cells to a metal strip called an interconnector. A BMS (Battery management system) is connected to one or more interconnectors to monitor the SoC (state of charge) and SoH (state of health) of the battery pack.
[0003] Typically, a lithium ion batteries used in the aforementioned vehicles experience heat generation throughout the charging and discharging process when operating as an electric or hybrid vehicle. The discharge temperature should be higher than the charging temperature, according to the battery manufacturer. When the batteries are used, their temperature increases during discharge, making quick charging of the batteries challenging. Also, because the lithium ion battery pack's several cells are tightly packed together, the centrally placed cells are prevented from emitting enough thermal radiation as a result of their nearby cells, which raises the temperature. Lithium-ion batteries employ plastic cell holders, which are insufficient at dissipating heat which is not desirable and also affects the life of the battery. With the better efficiency of the Li-ion cells, issues related to high temperature sometimes may result in failure or malfunctioning of the lithium ion battery in operation.
[0004] Further, batteries are usually sealed so as to improve the reliability of batteries and meet the basic waterproof and dustproof requirements. The battery failure caused by battery heating or altitude changes affects the safety of the battery while in use, resulting in different internal pressure and external pressure of the battery. However, too high, or too low air pressure inside the battery is likely to cause structural damage of the sealing surface, resulting in battery failure. Fire and explosion in batteries can take place due to dangerous or abnormal chemical reactions as the battery contains toxic liquids and gases. There is thermal danger which can occur due to high temperature and also there is a possibility of short circuit while carrying out nail penetration test. All above mentioned events triggers the thermal runaway and renders the battery pack unsafe to use.
[0005] Another problem with batteries having large cells is safety. The energy released in the cell going into thermal runaway is proportional to the amount of available electrolyte present in the cell during the thermal runaway event. As the cell becomes larger, more free space is available for electrolyte to fully saturate an electrode structure. Since the amount of the electrolyte per watt hour for large cells is usually greater than for small cells, large cell batteries are generally systems that gain more momentum during thermal runaway and are therefore less secure, hence, the larger the fuel (electrolyte), the larger is the flame. In addition, once a large cell is in thermal runaway mode, the heat generated by the cell triggers a thermal runaway reaction in adjacent cells, causing the entire battery pack to be destroyed, with massive destruction to the battery pack and peripheral devices. The user may be in a dangerous state by causing a cascade effect to ignite the battery pack.
[0006] In order to avoid any thermal runaway situation, pressure build up and the gasses due to which the pressure has been built up inside the battery pack has to be vented out. Now-a-days, a breather valve type vent has been provided in the battery pack to release the pressure from the battery pack when the vehicle is on high altitude. The breather valve type vent will adjust the difference in the pressure. There are 2 types of breather valve, first type of breather valve adjusts the pressure changes, and the second type of valve is known as thermal runaway vent valve which arrests the thermal runaway in the battery pack. If the temperature inside the battery pack keeps rising beyond a threshold limit, for example 80 degree, a separator between an anode and a cathode melts and short circuit takes place as the anode and cathode comes into direct contact to each other. Due to this, the electrolyte decomposition and anode dissolution takes place, leading to high temperature from such as 130 degree to 200 degree is reached within 2-3 seconds, followed by explosion of the cells. Such high temperatures can ignite adjacent combustibles, thereby creating a fire hazard. High temperatures can also cause decomposition of some materials and initiation of gas generation. Gases generated during these events can be toxic and / or flammable and can further increase the risks associated with uncontrolled thermal runaway event which is a self-enhanced increasing temperature loop that can lead to battery fires and explosions.
[0007] Keeping in mind the above challenges, it is extremely crucial to efficiently enable degassing of the battery. Further limitations and disadvantages of conventional and traditional approaches will become apparent to one of skill in the art, through comparison of described systems with some aspects of the present disclosure, as set forth in the remainder of the present application and with reference to the drawings.
SUMMARY
[0008] According to an embodiment of the invention, a venting structure of a power source unit is provided. The venting structure comprises a wing structure comprising a plurality of wings; a top cover, covering a top portion of the wing structure; a bottom cover, covering a bottom portion of the wing structure. The wing structure is sandwichedly mounted between the top cover, and the bottom cover. The plurality of wings of the wing structure is configured to move in a predetermined angle to vent pressure and gases from an internal region of the power source unit to an outside environment.
[0009] As per an aspect of the present invention, the predetermined angle being in a range of 5 degree to 90 degree.
[00010] As per an aspect of the present invention, each of the plurality of wings is disposed adjacent to each other to form a closed polygon structure of the wing structure, wherein the movement of each of the plurality of wings of the wing structure is independent of the movement of remaining wings from the plurality of wings.
[00011] As per an aspect of the present invention, each of the plurality of wings are connected to each other by a top edge of each of the plurality of wings, and a predetermined gap is configured between a side edge of each of the plurality of wings to enable independent movement of each of the plurality of wings.
[00012] As per an aspect of the present invention, the side edge of each of the plurality of wings is configured to have a curvilinear outline, and wherein a cut section of each of the plurality of wings has a curve shape profile, wherein the curve shaped profile provides an enhanced surface area to the plurality of wings for venting the gases and pressure.
[00013] As per an aspect of the present invention, the bottom cover comprises a plurality of stoppers corresponding to each of the plurality of wings, wherein the plurality of stoppers is configured to cover the predetermined gap in a closed state of the venting structure.
[00014] As per an aspect of the present invention, each of the plurality of stoppers being integrally formed with the bottom cover, wherein each of the plurality of stoppers being disposed at least at an intersection point of each of edges of the bottom structure.
[00015] As per an aspect of the present invention, a thickness of each of the plurality of wings is different from each other to enable angular opening of the plurality of wings based on vent of varied quantum of gasses and pressures of the power source unit.
[00016] As per an aspect of the present invention, each of the plurality of wings comprises a first end at a proximity to the, and a second end at a proximity to the bottom cover, wherein the first end has a first thickness, and the second end has a second thickness, wherein the first thickness being more than the second thickness which provides a tapered cross section to each of the plurality of wings.
[00017] As per an aspect of the present invention, a range of thickness is between 0.6 millimeter to 1 millimeter.
[00018] As per an aspect of the present invention, the top cover comprises a protruding inward portion from an inner surface of the top cover, wherein the protruding inward being disposed in a central region of the top cover, wherein the protruding inward portion comprises an notch annularly disposed along an outer region of the protruding inward portion, wherein the wing structure comprises an engagement portion configured to attach with the notch on the protruding inward portion to securely sandwich the wing structure between the top cover and the bottom cover.
[00019] As per an aspect of the present invention, a material of the plurality of wings has fire resistant characteristics and heat resistant characteristics, wherein the material being at least one of silicon, polyurethane.
[00020] As per an aspect of the present invention, a shape of the wing structure conforms with a shape of the top cover and the bottom cover.
[00021] As per an aspect of the present invention, the bottom cover comprises plurality of depressions, and the top cover comprises plurality of protrusions, wherein the plurality of depressions receives the plurality of protrusions to enabling locking of the top cover to the bottom cover.
[00022] As per an aspect of the present invention, the top cover comprises plurality of vent openings configured to direct gases to the external environment, wherein the plurality of vent openings being provided at a side portion of the top cover.
[00023] As per an aspect of the present invention, the bottom cover comprise one or more mounting provisions disposed at a bottom portion of the bottom cover, wherein the mounting provisions comprise a plurality of extruding structures that enable snap fitting of the venting structure on to the power source unit.
[00024] As per an aspect of the present invention, the power source unit comprises a mounting opening, wherein the extruding structure being rotated in a clockwise direction in the mounting opening for mounting the venting structure; and rotating extruding structure in an anti-clockwise position for demounting the venting structure
[00025] As per an aspect of the present invention, the bottom structure comprises a hollow portion, the hollow portion being configured to direct flow of gasses and pressure from the internal region of the power source unit to the wing structure.
[00026] As per an aspect of the present invention, a centre portion of the wing structure has an opening, wherein the opening being configured to accommodate the protruding inward portion of the top cover.
[00027] The foregoing summary is illustrative only and is not intended to be in any way limiting. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features will become apparent by reference to the drawings and the following detailed description.
BRIEF DESCRIPTION OF THE DRAWINGS
[00028] The present invention will become more fully understood from the detailed description given herein below and the accompanying drawings which are given by way of illustration only, and thus are not limitative of the present invention, and wherein:
[00029] Fig. 1 exemplarily illustrates exemplarily illustrates a side view of a power source unit with a power source unit casing.
[00030] Fig.2(a) exemplarily illustrates a front perspective view of a venting structure
[00031] Fig.2(b) exemplarily illustrates an exploded view of the venting structure.
[00032] Fig.3(a), 3(b), and 3(c) exemplarily illustrates a perspective view, and top view and a front view of the wing structure.
[00033] Fig.4(a), 4(b), and 4(c) exemplarily illustrates a perspective view, and top view and a front view of the bottom cover of the venting structure.
[00034] Fig.5(a), 5(b), and 5(c) exemplarily illustrates a perspective view, and top view and a front view of the top cover of the venting structure.
[00035] Fig.6(a), 6(b), and 6(c) exemplarily illustrates an inverted exploded view of the venting structure.
[00036] Fig.7(a), and 7(b) exemplarily illustrates a cut section view of the venting structure.
DETAILED DESCRIPTION
[00037] The present disclosure may be best understood with reference to the detailed figures and description set forth herein. Various embodiments are discussed below with reference to the figures. However, those skilled in the art will readily appreciate that the detailed descriptions given herein with respect to the figures are simply for explanatory purposes as the methods and systems may extend beyond the described embodiments. For example, the teachings presented and the needs of a particular application may yield multiple alternative and suitable approaches to implement the functionality of any detail described herein. Therefore, any approach may extend beyond the particular implementation choices in the following embodiments described and shown.
[00038] References to “one embodiment,” “at least one embodiment,” “an embodiment,” “one example,” “an example,” “for example,” and so on indicate that the embodiment(s) or example(s) may include a particular feature, structure, characteristic, property, element, or limitation but that not every embodiment or example necessarily includes that particular feature, structure, characteristic, property, element, or limitation. Further, repeated use of the phrase “in an embodiment” does not necessarily refer to the same embodiment.
[00039] The present invention now will be described more fully hereinafter with different embodiments. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather those embodiments are provided so that this disclosure will be thorough and complete, and fully convey the scope of the invention to those skilled in the art.
[00040] An objective of the present subject matter is to increase safety of the battery pack as well as the safety of the user of a vehicle, while eliminating the thermal runaway by controlling the temperature and venting the pressure buildup and gasses generated during thermal runaway event in the battery pack. The aim of the present subject matter is to provide an enhanced vent valve system that is configured with higher cross section area to vent pressure and gases from an internal region of the power source unit to an outside environment protect the power source unit from the maximum damage to the user and the surrounding environment.
[00041] The present subject matter further aims to provide a compact, safe to operate, easy to manufacture, assemble, and service of the power source unit such as battery pack. The present subject matter is described using an exemplary power source unit which is used in the vehicle, whereas the claimed subject matter can be used in any other type of application employing above-mentioned battery pack, with required changes and without deviating from the scope of invention. The embodiments of the present invention will now be described in detail with reference to a power source unit along with the accompanying drawings. However, the present invention is not limited to the present embodiments. The present subject matter is further described with reference to accompanying figures. Wherever convenient, the same reference numbers are used throughout the drawings to refer to the same or like parts. While examples and features of disclosed principles are described herein, modifications, adaptations, and other implementations are possible without departing from the scope of the disclosed embodiments. It should be noted that the description and figures merely illustrate principles of the present subject matter. Various arrangements may be devised that, although not explicitly described or shown herein, encompass the principles of the present subject matter. Moreover, all statements herein reciting principles, aspects, and examples of the present subject matter, as well as specific examples thereof, are intended to encompass equivalents thereof.
[00042] The aforesaid and other advantages of the present subject matter would be described in greater detail in conjunction with the figures & embodiment in the following description.
[00043] Fig.1 exemplarily illustrates exemplarily illustrates a side view of a power source unit (100) with a power source unit casing (102). The power source unit casing (102) protects the power source unit (100) from outside environment and prevents the power source unit (100) from getting damage. The power source unit (100) includes one or more cells (not shown) disposed in one or more holder (not shown) to hold it still in its required position, during the operation of a vehicle (not shown) and also to maintain the required cell arrangement and cell spacing. The power source unit (100) includes the one or more cells (not shown), one or more cell holder (not shown), and one or more interconnectors (not shown). The one or more cells provides the electric energy to drive the vehicle (not shown). In the present embodiment, the power source unit casing (102) includes one or more side casing (102a), and a top casing (102b). The one or more side casing (102a) supports the one or more cells from all the sides and a bottom portion of the power source unit (100). The top casing (102b) covers the power source unit (100) from a top portion of the power source unit (100). In an embodiment, the one or more power source unit casing (102) can be one of the aluminum casing. The one or more interconnectors are used to make electrical connection between the one or more cells. The top casing (102b) includes a connector for taking connections out of the power source unit (100) using one or more power cord sets (not shown).
[00044] Fig.2(a) exemplarily illustrates a front perspective view of a venting structure 200. The venting structure (200) is configured to vent the pressure build up and to degas the power source unit (100). The thermal runaway power source unit (100) creates a pressure build-up in the power source unit casing (102). The pressure must be evacuated quickly, if not, the risk of an explosion is highly likely in most of the situations. So, a degassing mechanism is provided by the present invention.
[00045] Fig.2(b) exemplarily illustrates an exploded view of the venting structure (200). The venting structure (200) comprises a wing structure (204), a top cover (202), covering a top portion of the wing structure (204); and a bottom cover (206), covering a bottom portion of the wing structure (204). The wing structure (204) is sandwichedly mounted between the top cover (202), and the bottom cover (206). The bottom cover (206) comprises a hollow portion (206A) which enables directing flow of gasses and pressure from the internal region of the power source unit (100) towards the wing structure (204). More specifically, the bottom cover (206) is mounted to the top casing (102b) of the power source unit (100). The flow of gasses and pressure from the internal region of the power source unit (100) exerts a pressure on an internal region of the wing structure (204) after passing through the hollow portion (206A) of the bottom cover (206). Thereby, wing structure (204) enables venting of the gasses and pressure. The structure and mechanism of the venting structure for enhanced relief of pressure is explained in description of following figures.
[00046] Fig.3(a), 3(b), and 3(c) exemplarily illustrates a perspective view, and top view and a front view of the wing structure (204). The Fig.3(a), 3(b), and 3(c) are explained together for brevity. The wing structure (204) comprises plurality of wings (204A). Each of the plurality of wings (204A,204B,204C,204D) is disposed adjacent to each other to form a closed polygon structure of the wing structure (204) such as a square, a rectangle. Each of the plurality of wings (204A) have a top edge (204AA), two side edges (204AB), and a bottom edge. The closed polygon structure is formed by connected the top edges of each of the plurality of wings (204A). Further, for example consider the (204AB) of each of the plurality of wings (204A) have slant straight profile. This would provide a smaller cross section area in each of the plurality of wings (204A), for venting out the gasses or pressures from an internal region of the power source unit (100). Thus, a limited or constrained amount gasses or pressure is released or vented out by the venting structure (200). Therefore, to enhance the venting of the gasses or pressures from an internal region of the power source unit (100), the present invention provides the side edges (204AB) of each of the plurality of wings (204A) have a curvilinear outline. The curvilinear outline of the side edges (204AB) of each of the plurality of wings (204A) increases the cross-sectional area for venting of the gasses or pressures from an internal region of the power source unit (100). Further, a predetermined gap (302) is configured between a side edge (204AB) of each of the plurality of wings (204A). The predetermined gap (302) enables independent movement of each of the plurality of wings (204A). The predetermined gap (302) ranges between 0.1 millimeter to 2 millimeter. The curvilinear outline of the plurality of wings (204A) of the wing structure (204) enables each of the plurality of wings (204A) to move in a predetermined angle. For example, the plurality of wings (204A) angularly moves upwards in an angle of 90 degrees.
[00047] As per an embodiment of the present invention, a thickness of each of the plurality of wings (204A) is different from each other to enable angular opening of the plurality of wings (204A) based on vent of varied quantum of gasses and pressures of the power source unit (100). For example, consider the pressure exerted on the venting structure (200) by the gasses from the internal region of the power source unit (100) is X pascals, in that case any of the of the plurality of wings (204A) moves angularly to vent out the gasses or the pressure. However, if the pressure exerted on the venting structure by the gasses from the internal region of the power source unit (100) is X+Y pascals, in that case another wing of the plurality of wings (204A) moves angularly to vent out the gasses or the pressure. Thus, the venting structure (200) is configured to vent out varied quantum of gasses and pressure efficiently. As per an embodiment of the present invention a range of thickness is between 0.6 millimeter to 1 millimeter. The venting structure (200) is said to be in closed state when none of the plurality of wings (204A) has moved in any direction to vent the gasses or pressure. While the venting structure (200) is said to be in open state when at least one of the plurality of wings (204A) has moved to vent the gasses or pressure.
[00048] Further, the wing structure (204) comprises an engagement portion (304), which is configured to attach the wing structure (204) with the top cover (202) through a notch (702) (shown in fig. 7a and 7b) of the top cover (202). The engagement portion (304) is a stepped profile which is annually disposed at an outer perimeter of an opening (306) at the centre portion of the wing structure (204).
[00049] Fig.4(a), 4(b), and 4(c) exemplarily illustrates a perspective view, and top view and a front view of the bottom cover (206) of the venting structure. The bottom cover (206) covers the bottom portion of the wing structure (204). The bottom cover (206) is configured to enables directing the gasses and pressures from the internal region of the power source unit (100) towards the wing structure (204). The bottom cover (206) comprises a hollow portion (206A) which enables to direct flow of gasses and pressure from the internal region of the power source unit (100) towards the wing structure (204) because the bottom cover (206) is mounted to the power source unit (100).
[00050] As per an embodiment, the bottom cover (206) comprises a plurality of stoppers (402) corresponding to each of the plurality of wings (204A) of the wing structure (204). The plurality of stoppers (402) are disposed such that, the plurality of stoppers (402) are configured to cover the predetermined gap (302) in a closed state of the venting structure. Advantageously, the plurality of stoppers (402) prohibits entry of any dust or water in the venting structure (200) by sealing the predetermined gap (302). As per an embodiment, the plurality of stoppers (402) conforms with the shape of the predetermined gap (302) configured between the side edge (204AB) of each of the plurality of wings (204A). More specifically, the shape of each of the plurality of stoppers (402) has a curvilinear outline mapping with the outline of the side edges (204AB) of each of the plurality of wings (204A). As per an embodiment, each of the plurality of stoppers (402) is integrally formed with the bottom cover (206). As per another embodiment of the present invention, the bottom cover (206) is polygon shaped structure, which comprises plurality of bottom cover edges (404) connected to each other. As per another embodiment of the present invention, each of the plurality of stoppers (402) is disposed at least at an intersection point of each of plurality of bottom cover edges (404).
[00051] Further, the bottom cover (206) comprises plurality of depressions (406), to receive a plurality of protrusions (shown in Fig, 5(a), 5(b)) to enable locking of the top cover (202) to the bottom cover (206). As per an embodiment, the plurality of depressions (406) enables snap fitting to lock the top cover (202) to the bottom cover (206). The plurality of depressions (406) is provided at a vertex portion of the is polygon shaped structure of the bottom cover (206). Further, the bottom cover (206) comprises one or more mounting provisions (408) for mounting the venting structure (200) to the power source unit (100). As per an embodiment, the at a bottom portion (206A) of the bottom cover (206) comprises the mounting provisions (408). Further as per an aspect of the present invention, the mounting provisions (408) comprises a plurality of extruding structures that enable snap fitting of the venting structure (200) on to the power source unit (100). More specifically, the power source unit (100) comprises a mounting opening (not shown) to enable receive the mounting provisions (408) of the bottom cover (206) to mount venting structure (200). As per an embodiment of the present invention, the plurality mounting provisions (408) is rotated in a clockwise direction in the mounting opening for mounting the venting structure (200) on to the power source unit (100). Similarly, to demount the venting structure (200) from the power source unit (100), the plurality of mounting provisions (408) is rotated in an antilock wise direction.
[00052] Fig.5(a), 5(b), and 5(c) exemplarily illustrates a perspective view, and top view and a front view of the top cover (202) of the venting structure (200). The top cover (202) covers a top portion of the wing structure (204). The top cover (202) comprises plurality of vent openings (502) at a side portion of the top cover (202). The plurality of vent openings (502) is disposed in vicinity of the plurality of wings (204A) of the wing structure (204). Thus, the vented pressure or gasses through the movement of the plurality of wings (204A) is directed towards the external environment after passing through the plurality of vent openings (502). The plurality of vent openings (502) at a side portion in the vicinity of the plurality of wings (204A) enables easy and efficient escape of heated gasses and pressure out of the power source unit (100).
[00053] Further, the top cover (202) comprises plurality of protrusions (504) which enables locking the top cover (202) to the bottom cover (206). More specifically, the plurality of protrusions (504) is snap fitted to the corresponding plurality of depressions (406) of the bottom cover (206). The locking of the bottom cover (206) to the top cover (202) provides a closed structure of the venting structure (200). The shape of the top cover (202) is a closed polygon shape, having a plurality of top cover edges (506). The plurality of protrusions (504) is disposed at the bottom portion of the top cover (202). More specifically, the plurality of protrusion (504) is disposed at the intersection portion or vertex portions of the plurality of top cover edges (506) at the bottom portion of the top cover (202). The location of plurality of protrusions (504) conforms with the location the plurality of depressions (406).
[00054] Fig.6(a), 6(b), and 6(c) exemplarily illustrates an inverted exploded view of the venting structure. The top cover (202) comprises a protruding inward portion (602) from an inner surface of the top cover (202). The protruding inward portion (602) is disposed in a central region of the top cover (202). Further, the wing structure (204) has an opening (306) at a center portion. The opening (306) is configured to accommodate the protruding inward portion (602) of the top cover (202). The wing structure (204) comprises the engagement portion (304) which is configured to attach with the notch (702) (shown in Fig. 7(a), 7(b)) on the protruding inward portion. The engagement of the engagement portion (304) to the notch (702) securely sandwiches the wing structure (204) between the top cover (202) and the bottom cover (206). Further, the bottom cover (206) comprises the plurality of stoppers (402) corresponding to each of the plurality of wings (204A) of the wing structure (204). The plurality of stoppers (402) is disposed such that, the plurality of stoppers (402) is configured to cover the predetermined gap (302) in a closed state of the venting structure.
[00055] Fig.7(a), and 7(b) exemplarily illustrates a cut section view of the venting structure. The figure shows the protruding inward portion (602) of the top cover (202) comprises a notch (702) , which is annularly disposed along an outer region of the protruding inward portion. The engagement portion (304) of the wing structure (204) is configured to attach with the notch (702) on the protruding inward portion (602) to securely sandwich the wing structure (204) between the top cover (202) and the bottom cover (206). A cut section of each of the plurality of wings (204A) has a curve shape profile. The curve shaped profile provides an enhanced surface area to the plurality of wings (204A) for venting the gases and pressure.
[00056] As per an embodiment of the present invention, the plurality of wings (204A) comprises a first end at a proximity to the, and a second end at a proximity to the bottom cover (206). The first end (704) has a first thickness, and the second end (706) has a second thickness. As per an embodiment of the present invention, the first thickness is more than the second thickness which provides a tapered cross section to each of the plurality of wings (204A). The tapered cross section of the each of the plurality of wings (204A) enables easy and efficient movement of the plurality of wings (204A) for venting gasses and pressures.
[00057] The Fig.7(a) illustrate the cut section view of the venting structure (200) in open state, wherein at least one of the plurality of wings (204A) of the wing structure (204) has moved upwards angularly. The upwards angular movement of the at least one of the plurality of wings (204A) enables escaping the gasses and pressures to the outside environment. The Fig. 7(b) illustrates the cut section view of the venting structure (200) in closed state, wherein at least one of the plurality of wings (204A) of the wing structure (204) has not moved. More specifically, the base portion (204AC) of the at least one of the plurality of wings (204A) is at rest position. As per an aspect of the present invention, a material of the plurality of wings (204A) has fire resistant characteristics and heat resistant characteristics, wherein the material being at least one of silicon, polyurethane.
[00058] The present invention advantageously provides venting structure (200) which is configured to in release of pressure and gas from an internal region of the power source unit (100) to an outside environment in an enhanced and efficient way by the plurality of wings (204A) of the wing structure (204) which are configured to move in a predetermined angle to vent pressure and gases.
[00059] Further, the present invention provides plurality of wings (204A) which are configured to have a curvilinear outline, and wherein a cut section of each of the plurality of wings (204A) has a curve shape profile. The curvilinear outline and curve shaped profile provides an enhanced surface area to the plurality of wings (204A) for enhanced venting of the gases and pressure.
[00060] Moreover, the present invention advantageously provides that the thickness of each of the plurality of wings (204A) is different from each other and a predetermined gap (302) between each of the plurality of wings (204A) enables movement of each of the plurality of wings (204A) of the wing structure (204) is independent of each other. Thus, the angular opening of the plurality of wings (204A) based on vent of varied quantum of gasses and pressures of the power source unit (100) as required is achieved.
[00061] Further, the bottom cover (206) comprises a plurality of stoppers (402) corresponding to each of the plurality of wings (204A) to cover a predetermined gap (302) in a closed state of the venting structure. This advantageously prevents entry of dust, water or any other foreign particles in the venting structure. The present invention ensures safety of the user as well as the power unit.
[00062] In light of the above mentioned advantages and the technical advancements provided by the disclosed method and system, the claimed steps as discussed above are not routine, conventional, or well understood in the art, as the claimed steps enable the following solutions to the existing problems in conventional technologies. Further, the claimed steps clearly bring an improvement in the functioning of the guard assembly itself as the claimed steps and constructional features provide a technical solution to a technical problem.
[00063] Finally, the language used in the specification has been principally selected for readability and instructional purposes, and it may not have been selected to delineate or circumscribe the inventive subject matter and is therefore intended that the scope of the invention be limited not by this detailed description, but rather by any claims that issue on an application based here on. Accordingly, the embodiments of the present invention are intended to be illustrative, but not limiting, of the scope of the invention, which is set forth in the following claims.
[00064] While various aspects and embodiments have been disclosed herein, other aspects and embodiments will be apparent to those skilled in the art. The various aspects and embodiments disclosed herein are for purposes of illustration and are not intended to be limiting, with the true scope and spirit being indicated by the following claims.
[00065] A person with ordinary skills in the art will appreciate that the systems, modules, and sub-modules have been illustrated and explained to serve as examples and should not be considered limiting in any manner. It will be further appreciated that the variants of the above disclosed system elements, modules, and other features and functions, or alternatives thereof, may be combined to create other different systems or applications.
[00066] Those skilled in the art will appreciate that any of the aforementioned steps and/or system modules may be suitably replaced, reordered, or removed, and additional steps and/or system modules may be inserted, depending on the needs of a particular application. In addition, the systems of the aforementioned embodiments may be implemented using a wide variety of suitable processes and system modules, and are not limited to any particular computer hardware, software, middleware, firmware, microcode, and the like. The claims can encompass embodiments for hardware and software, or a combination thereof.
[00067] While the present disclosure has been described with reference to certain embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the present disclosure. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the present disclosure without departing from its scope. Therefore, it is intended that the present disclosure not be limited to the particular embodiment disclosed, but that the present disclosure will include all embodiments falling within the scope of the appended claims.
, Claims:CLAIMS
I/We claim:
1. A venting structure (200) of a power source unit (100), the venting structure (200) comprising:
a wing structure (204), the wing structure (204) comprises a plurality of wings (204A);
a top cover (202), covering a top portion of the wing structure (204);
a bottom cover (206), covering a bottom portion of the wing structure (204);
the wing structure (204) being sandwichedly mounted between the top cover (202), and the bottom cover (206);
wherein the plurality of wings (204A) of the wing structure (204) being configured to move in a predetermined angle to vent pressure and gases from an internal region of the power source unit (100) to an outside environment.

2. The venting structure (200) of the power source unit (100) as claimed in claim 1, wherein the predetermined angle being in a range of 5 degree to 90 degree.

3. The venting structure (200) of the power source unit (100) as claimed in claim 1, wherein each of the plurality of wings (204A) being disposed adjacent to each other to form a closed polygon structure of the wing structure (204), wherein the movement of each of the plurality of wings (204A) of the wing structure (204) is independent of the movement of remaining wings from the plurality of wings (204A).

4. The venting structure (200) of the power source unit (100) as claimed in claim 1, wherein each of the plurality of wings (204A) are connected to each other by a top edge (204AA)of each of the plurality of wings (204A), and a predetermined gap (302) being configured between a side edges (204AB) of each of the plurality of wings (204A) to enable independent movement of each of the plurality of wings (204A).

5. The venting structure (200) of the power source unit (100) as claimed in claim 1, wherein the side edges (204AB) of each of the plurality of wings (204A) being configured to have a curvilinear outline, and wherein a cut section of each of the plurality of wings (204A) has a curve shape profile, wherein the curve shaped profile provides an enhanced surface area to the plurality of wings (204A) for venting the gases and pressure.

6. The venting structure (200) of the power source unit (100) as claimed in claim 1, wherein the bottom cover (206) comprises a plurality of stoppers (402) corresponding to each of the plurality of wings (204A), wherein the plurality of stoppers (402) being configured to cover the predetermined gap (302) in a closed state of the venting structure.

7. The venting structure (200) of the power source unit (100) as claimed in claim 6, wherein each of the plurality of stoppers (402) being integrally formed with the bottom cover (206), wherein each of the plurality of stoppers (402) being disposed at least at an intersection point of each of edges of the bottom structure.

8. The venting structure (200) of the power source unit (100) as claimed in claim 1, wherein a thickness of each of the plurality of wings (204A) is different from each other, to enable angular opening of the plurality of wings (204A) based on vent of varied quantum of gasses and pressures of the power source unit (100).

9. The venting structure (200) of the power source unit (100) as claimed in claim 1, wherein each of the plurality of wings (204A) comprises a first end (704)at a proximity to the top cover (202), and a second end (706) at a proximity to the bottom cover (206), wherein the first end (704) has a first thickness, and the second end (706) has a second thickness, wherein the first thickness being more than the second thickness which provides a tapered cross section to each of the plurality of wings (204A).

10. The venting structure (200) of the power source unit (100) as claimed in claim 7, wherein a range of thickness is between 0.6 millimeter to 1 millimeter.

11. The venting structure (200) of the power source unit (100) as claimed in claim 1, wherein the top cover (202) comprises a protruding inward portion (602) from an inner surface of the top cover (202), wherein the protruding inward portion (602) being disposed in a central region of the top cover (202), wherein the protruding inward portion (602) comprises a notch (702) annularly disposed along an outer region of the protruding inward portion.

12. The venting structure (200) of the power source unit (100) as claimed in claim 1, wherein a center portion of the wing structure (204) has an opening, wherein the opening (306) being configured to accommodate the protruding inward portion (602) of the top cover (202).

13. The venting structure (200) of the power source unit (100) as claimed in claim 1, wherein the wing structure (204) comprises an engagement portion (304) disposed annularly at an outer perimeter of the opening (306) at the center portion of the wing structure (204), wherein the engagement portion (304) being configured to attach with the notch (702) on the protruding inward portion (602) to securely sandwich the wing structure (204) between the top cover (202) and the bottom cover (206).

14. The venting structure (200) of the power source unit (100) as claimed in claim 1, wherein the bottom cover (206) comprises plurality of depressions, and the top cover (202) comprises plurality of protrusions, wherein the plurality of depressions (406) receives the plurality of protrusions (504) to enabling locking of the top cover (202) to the bottom cover (206).

15. The venting structure (200) of the power source unit (100) as claimed in claim 1, wherein the top cover (202) comprises plurality of vent openings (502) configured to direct gases to the external environment, wherein the plurality of vent openings (502) being provided at a side portions of the top cover (202).

16. The venting structure (200) of the power source unit (100) as claimed in claim 1, wherein the bottom cover (206) comprise one or more mounting provisions (408) disposed at a bottom portion (206A) of the bottom cover (206), wherein the mounting provisions (408) comprise a plurality of extruding structures that enable snap fitting of the venting structure (200) on to the power source unit (100).

17. The venting structure (200) of the power source unit (100) as claimed in claim 1, wherein the bottom structure comprises a hollow portion, the hollow portion (206A)being configured to direct flow of gasses and pressure from the internal region of the power source unit (100) to the wing structure (204).

18. The venting structure (200) of the power source unit (100) as claimed in claim 1, wherein the power source unit (100) comprises a mounting opening, wherein the plurality of extruding structure being rotated in a clockwise direction in the mounting opening for mounting the venting structure (200) to the power source unit (100); and rotating the extruding structure in an anti-clockwise direction for demounting the venting structure (200) from the power source unit (100).

19. The venting structure (200) of the power source unit (100) as claimed in claim 1, wherein a material of the plurality of wings (204A) has fire resistant characteristics and heat resistant characteristics, wherein the material being at least one of silicon, polyurethane.

20. The venting structure (200) of the power source unit (100) as claimed in claim 1, wherein a shape of the wing structure (204) conforms with a shape of the top cover (202) and the bottom cover (206).