DESC:TECHNICAL FIELD
The present disclosure relates to a multi-mode air circulation system for a refrigerator.
BACKGROUND
A refrigerator usually have multiple compartments or portions which require cooling based on user requirements. In order to provide cooling to such compartments in the refrigerator, air needs to be circulated within the multiple compartments of the refrigerator. In the existing or the known systems of air circulation in refrigerators, circulation of air is through natural convection. During natural convection, warm air which is at a bottom side of the refrigeration compartment rises in an upward direction within the refrigerator, and relatively cooler air moves in a downward direction. In view of upward movement of the warm air and downward movement of the cool air, a natural convection air flow is established within the refrigerator, which helps in maintaining operable temperature inside the refrigerator.
Effecting air circulation by means of natural convection, however, have drawbacks. One such drawback is that cooling of contents placed for cooling in a door compartment of a refrigeration compartment of the refrigerator, is time-consuming and less effective. Further, owing to such natural convection, a evaporator compartment of the refrigerator requires extensive time duration for ice formation. Hence, an overall operational efficiency of the refrigerator is reduced. Furthermore, defrosting within the evaporator compartment requires extensive duration.
A holistic cooling within the refrigeration compartment and the evaporator compartment only by means of natural convection requires additional time, which is undesirable as it leads to a loss of time to a user, as well as extra consumption of power. Also, an active drop in the operating temperature depending on specific user requirements, is not achievable, within the known systems of air circulation for refrigerators.
Therefore, in view of the above-mentioned problems, it is advantageous / desirable to develop a system that can overcome the above-mentioned problems and limitations.

SUMMARY
This summary is provided to introduce a selection of concepts, in a simplified format, that are further described in the detailed description of this disclosure. This summary is neither intended to identify key or essential inventive concepts nor is it intended for determining the scope of the disclosure.
In an embodiment, a multi-mode air circulation system for a refrigerator is herein disclosed. The multi-mode air circulation system includes a back plate adapted to position in an evaporator compartment of the refrigerator. The back plate includes a freezer air vent defined on a base of the back plate. An axial fan is adapted to position on the back plate and to operate to generate a flow of air. An air guider assembly includes an air diffuser that is adapted to couple with the back plate. The axial fan accommodates between the air diffuser and the back plate. The air guider assembly includes at least one air pathway is adapted to guide the flow of air from the axial fan to a refrigeration compartment of the refrigerator, below the evaporator compartment. An air circulation regulator is disposed on the air diffuser and positioned upstream to the at least one air pathway, such that the air circulation regulator is adapted to move with respect to the freezer air vent or the at least one air pathway, to guide the flow of air to the evaporator compartment through the freezer air vent or to the refrigeration compartment through the at least one air pathway.
The multi-mode air circulation system for a refrigerator which is disclosed herein provides effective and faster cooling in the door compartment of the refrigeration compartment of the refrigerator along with fast ice formation in the evaporator compartment. Additionally, defrosting within the evaporator compartment of the refrigerator is also achieved in a faster manner.
To further clarify the advantages and features of the present disclosure, a more particular description will be rendered by reference to specific embodiments thereof, which is illustrated in the appended drawing. It is appreciated that these drawings depict only typical embodiments and are therefore not to be considered limiting its scope. The present disclosure will be described and explained with additional specificity and detail with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS
These and other features, aspects, and advantages of the present disclosure will become better understood when the following detailed description is read with reference to the accompanying drawings in which like characters represent like parts throughout the drawings, wherein:
Figure 1 illustrates an exploded view of a multi-mode air circulation system for a refrigerator with a slider, as per an embodiment;
Figure 2A illustrates a front view of a multi-mode air circulation system for a refrigerator with a slider positioned to enable cooling for either formation of ice or for defrosting, in an evaporator compartment, as per an embodiment;
Figure 2B illustrates a perspective view of an air guider assembly with a slider assembled thereon and positioned to enable cooling for either formation of ice or for defrosting, in an evaporator compartment, as per an embodiment;
Figure 3A illustrates a front view of a multi-mode air circulation system for the refrigerator with a slider positioned to enable cooling in an evaporator compartment and a refrigeration compartment, as per an embodiment;
Figure 3B illustrates a perspective view of a air guider assembly with a slider assembled thereon and positioned to enable cooling in an evaporator compartment and an refrigeration compartment, as per an embodiment;
Figure 4A illustrates a front view of a multi-mode air circulation system for an refrigerator with an slider positioned to enable cooling in an refrigeration compartment, as per an embodiment;
Figure 4B illustrates a perspective view of the air guider assembly with a slider assembled thereon and positioned to enable cooling in a refrigeration compartment, as per an embodiment;
Figure 5 illustrates an exploded perspective view of a multi-mode air circulation system for a refrigerator with a knob, as per different embodiment;
Figures 6A to 6C illustrate perspective views of an air guider assembly with a knob assembled thereon and positioned to enable cooling for either formation of ice or for defrosting, in an evaporator compartment, as per different embodiments;
Figures 7A and 7B illustrate perspective views of an air guider assembly with a knob assembled thereon and positioned to enable cooling in an evaporator compartment as well as a refrigeration compartment, as per different embodiments; and
Figures 8 illustrate a perspective view of an air guider assembly with a knob assembled thereon and positioned to enable cooling in a refrigeration compartment, as per different embodiments.
Further, skilled artisans will appreciate that elements in the drawings are illustrated for simplicity and may not have necessarily been drawn to scale.
Furthermore, in terms of the construction of the device, one or more components of the device may have been represented in the drawings by conventional symbols, and the drawings may show only those specific details that are pertinent to understanding the embodiments so as not to obscure the drawings with details that will be readily apparent to those of ordinary skill in the art having the benefit of the description herein.
DETAILED DESCRIPTION
For the purpose of promoting an understanding of the principles of the present disclosure, reference will now be made to the various embodiments, and specific language will be used to describe the same. It will nevertheless be understood that no limitation of the scope of the present disclosure is thereby intended, such alterations and further modifications in the illustrated system, and such further applications of the principles of the present disclosure as illustrated therein being contemplated as would normally occur to one skilled in the art to which the present disclosure relates.
It will be understood by those skilled in the art that the foregoing general description and the following detailed description are explanatory of the present disclosure and are not intended to be restrictive thereof.
Whether or not a certain feature or element was limited to being used only once, it may still be referred to as “one or more features” or “one or more elements” or “at least one feature” or “at least one element.” Furthermore, the use of the terms “one or more” or “at least one” feature or element do not preclude there being none of that feature or element, unless otherwise specified by limiting language including, but not limited to, “there needs to be one or more…” or “one or more elements is required.”
Reference is made herein to some “embodiments.” It should be understood that an embodiment is an example of a possible implementation of any features and/or elements of the present disclosure. Some embodiments have been described for the purpose of explaining one or more of the potential ways in which the specific features and/or elements of the proposed disclosure fulfil the requirements of uniqueness, utility, and non-obviousness.
Use of the phrases and/or terms including, but not limited to, “a first embodiment,” “a further embodiment,” “an alternate embodiment,” “one embodiment,” “an embodiment,” “multiple embodiments,” “some embodiments,” “other embodiments,” “further embodiment”, “furthermore embodiment”, “additional embodiment” or other variants thereof do not necessarily refer to the same embodiments. Unless otherwise specified, one or more particular features and/or elements described in connection with one or more embodiments may be found in one embodiment, or may be found in more than one embodiment, or may be found in all embodiments, or may be found in no embodiments. Although one or more features and/or elements may be described herein in the context of only a single embodiment, or in the context of more than one embodiment, or in the context of all embodiments, the features and/or elements may instead be provided separately or in any appropriate combination or not at all. Conversely, any features and/or elements described in the context of separate embodiments may alternatively be realized as existing together in the context of a single embodiment.
Any particular and all details set forth herein are used in the context of some embodiments and therefore should not necessarily be taken as limiting factors to the proposed disclosure.
The terms “comprises”, “comprising”, or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process or method that comprises a list of steps does not include only those steps but may include other steps not expressly listed or inherent to such process or method. Similarly, one or more devices or sub-systems or elements or structures or components proceeded by “comprises... a” does not, without more constraints, preclude the existence of other devices or other sub-systems or other elements or other structures or other components or additional devices or additional sub-systems or additional elements or additional structures or additional components.
Aspects of the present disclosure will be described below in detail with reference to the accompanying drawings.
Referring to the accompanying Figure 1 through Figure 4B, a multi-mode air circulation system 100 for a refrigerator, as per various embodiments are disclosed herein. The accompanying Figure 1 through Figure 4B illustrate multi-mode air circulation system 100 for a refrigerator, such that an air circulation regulator 120 is embodied as a slider 120, such that the various modes by which the air circulation system 100 can be operated are depicted therein.
The multi-mode air circulation system 100 includes a back plate 110 which is adapted to position in an evaporator compartment of the refrigerator. The back plate 110 includes a freezer air vent 110-D defined on a base 110-A of the back plate 110. An axial fan 110-C is adapted to be positioned on the back plate 110 and to operate to generate a flow of air. An air guider assembly 130 includes an air diffuser 130-A adapted to couple with the back plate 110. The axial fan 110-C accommodates between the air diffuser 130-A and the back plate 110. The air guider assembly 130 includes at least one air pathway 130-E which is adapted to guide the flow of air from the axial fan 110-C to a refrigeration compartment of the refrigerator which is disposed below the evaporator compartment. An air circulation regulator 120 is disposed on the air diffuser 130-A and positioned upstream to the at least one air pathway 130-E. The air circulation regulator 120 is adapted to move with respect to the freezer air vent 110-D or the at least one air pathway 130-E for guiding the flow of air to the evaporator compartment through the freezer air vent 110-D or to the refrigeration compartment through the at least one air pathway 130-E.
Referring to Figure 1, the air circulation regulator 120 is adapted to change a position in an air circulation regulator slot 130-D defined on the air diffuser 130-A. The air circulation regulator 120 is adapted to guide the flow of air, into the evaporator compartment through the freezer air vent 110-D or the refrigeration compartment through the at least one air pathway 130-E or both. The flow of air is guided based on the position of the air circulation regulator 120, and operational conditions of the axial fan 110-C and a compressor of the refrigerator.
The back plate 110 includes the axial fan 110-C disposed on a fan vent 110-B defined on the base 110-A. Additionally, an aperture 110-E is defined on the base 110-A below the freezer air vent 110-D to accommodate at least a portion of the air circulation regulator 120.
The air guider assembly 130 includes a cover 130-B which is disposed on the air diffuser 130-A. The air guider assembly 130 is adapted to cover the at least one air pathway 130-E. The at least one air pathway 130-E is disposed downstream to the air diffuser 130-A. A fan slot 130-C is positioned upstream to the air diffuser 130-A to support the axial fan 110-C. The air circulation regulator slot 130-D is disposed between the air diffuser 130-A and the at least one air pathway 130-E to accommodate the air circulation regulator 120 therebetween.
The slider 120 includes a vertical face 120-A and a horizontal face 120-C extending orthogonally from an edge of the vertical face 120-C. The slider 120 comprises a toggle 120-B protruding from the vertical face 120-A. The slider 120 is adapted to change the position in the air circulation regulator slot 130-D from left to right and vice versa. Effectively, the air circulation regulator 120 embodied as the slider 120 is adapted to change the position in one of a first position L, a second position R, an intermediate position M.
The different modes of air circulation in the multi-mode air circulation system 100, in which the air circulation regulator 120 is embodied as the slider 120, as per an embodiment, shall now be described hereunder:
Referring to Figures 2A and 2B, an ice formation mode is disclosed herein, as per an embodiment. Here, the compressor and the axial fan 110-C are in a switched-ON operational condition. The slider 120 is in the first position L. The horizontal face 120-C of the slider 120 is positioned in relation to the freezer air vent 110-D for maintaining the freezer air vent 110-D open and maintaining the at least one air pathway 130-E closed. Therefore, air for circulation only through the freezer air vent 110-D is provided. The air is provided for freezing so that ice formation is possible in the evaporator compartment.
Referring again to Figures 2A and 2B, a defrosting mode is disclosed herein, as per an embodiment. The compressor is in a switched-OFF operational condition and the axial fan 110-C is in the switched-ON operational condition. The slider 120 is in the first position L. The horizontal face 120-C of the slider 120 is positioned in relation to the freezer air vent 110-D for maintaining the freezer air vent 110-D open and maintaining the at least one air pathway 130-E closed. Therefore, circulation of air is achieved through the freezer air vent 110-D. Owing to the same, air for circulation through the evaporator compartment enables defrosting of ice which is formed therein.
Referring to Figures 3A and 3B, a hybrid-cooling mode in which the evaporator compartment as well as the refrigeration compartment are provided with cooling air, as per an embodiment, is disclosed herein. Here, the compressor and the axial fan 110-C are in a switched-ON operational condition. The slider 120 is in the intermediate position M. The vertical face 120-A and the horizontal face 120-C of the slider 120 are positioned in relation to the freezer air vent 110-D and the at least one air pathway 130-E for maintaining the freezer air vent 110-D and the at least one air pathway 130-E, partially open. Therefore, air for freezing through the freezer air vent 110-D and also for cooling through the at least one air pathway 130-E is circulated. Owing to the same, the air for freezing for formation of ice in the evaporator compartment along with cooling air for cooling in the refrigeration compartment, are partially provided to both chambers, i.e. in the evaporator chamber and the refrigeration chamber.
Referring to Figures 4A and 4B, a cooling mode in which the refrigeration compartment is provided with cooling air, as per an embodiment, is disclosed herein. Here, the compressor and the axial fan 110-C are in the switched-ON operational condition and the slider 120 is in the second position R. The vertical face 120-A covers the freezer air vent 110-D for maintaining the freezer air vent 110-D closed and maintaining the at least one air pathway 130-E open. Therefore, cooling air is provided for circulation through the at least one air pathway 130-E only. Owing to the same, the cooling air is provided for cooling in the refrigeration compartment only, and for cooling the contents stored therein.
In an alternate embodiment, the air circulation regulator 120 is embodied as one of a slider 120 or a knob 120. Accordingly, referring to Figure 5, in an alternate embodiment, the air circulation regulator 120 is adapted to rotatably change position on a posterior side of the fan vent 110-B. Here, the air circulation regulator 120 is embodied as a knob 120. The knob 120 is adapted to change the position in one of a first knob position I, an intermediate knob position H or a second knob position S. The knob 120 includes a dial 120-D which is adapted to the fan vent 110-B. The dial 120-D is configured to rotate in the fan vent 110-B on a posterior side of the back plate 110. A knob adjuster 120-F is exposed inside the evaporator compartment and disposed at a center of the dial 120-D. The knob adjuster 120-F is for rotatably adjusting the knob 120 and is used by a user during selection of a specific mode of air circulation within the evaporator compartment or the refrigerator compartment or both. The dial 120-D is adapted to the fan vent 110-B by a bracket 120-E. The axial fan 110-C is disposed on the bracket 120-E. The dial 120-D is adapted to rotate inside the fan slot 130-C on a posterior of the dial 120-D. The dial 120-D has at least one cut-out portion 120-D1 which is defined on a periphery 120-D2 of the dial 120-D. The at least one cut-out portion 120-D1 helps to selectively guide the flow of air from the axial fan 110-C through the cut portion 120-D1 into the at least one air pathway 130-E, thereby selectively guiding the flow of air into the evaporator compartment or the refrigeration compartment or both.
The different modes of air circulation in the multi-mode air circulation system 100 in which the air circulation regulator 120 is embodied as a knob 120, shall now be described hereunder:
Referring to Figures 6A, 6B and 6C, an ice formation mode is disclosed herein, as per an embodiment. Here, the compressor and the axial fan 110-C are in a switched-ON operational condition and the knob 120 is in the first knob position I. The at least one cut-out portion 120-D1 is positioned in relation to the at least one air pathway 130-E for maintaining the at least one air pathway 130-E supplying the flow of air to the evaporator compartment open, and maintaining the at least one air pathway 130-E supplying the flow of air to the refrigeration compartment closed. Therefore, the air for freezing is circulated through the evaporator compartment only. Owing to the same, the air for freezing enables formation of ice in the evaporator compartment.
Referring again only to Figure 6C, a defrosting mode is disclosed herein, as per an embodiment. Here, the compressor is in a switched-OFF operational condition and the axial fan 110-C is in the switched-ON operational condition and the knob 120 is in the first knob position I. The at least one cut-out portion 120-D1 is positioned in relation to the at least one air pathway 130-E for maintaining the at least one air pathway 130-E supplying a flow of air to the evaporator compartment open, and maintaining the at least one air pathway 130-E supplying the flow of air to the refrigeration compartment closed. Therefore, the air is circulated through the evaporator compartment only. Owing to the same, the air for circulation through the evaporator compartment helps defrost the ice which is formed therein.
Referring to Figures 7A and 7B, a hybrid-cooling mode in which the evaporator compartment as well as the refrigeration compartment are provided with cooling air, as per an embodiment, is disclosed herein. Here, the compressor and the axial fan 110-C are in a switched-ON operational condition and the knob 120 is in the intermediate knob position H. The at least one cut-out portion 120-D1 is positioned in relation to the at least one air pathway 130-E for maintaining the at least one air pathway 130-E supplying a flow of cooling air to the evaporator compartment or the refrigeration compartment, partially open. Therefore, the cooling air flows partially through the evaporator compartment or partially through the refrigeration compartment. Owing to the same, the air for freezing for formation of ice in the evaporator compartment along with the cooling air for cooling in the refrigeration compartment, are partially provided to both chambers, i.e. in the evaporator chamber as well as in the refrigeration chamber.
Referring to Figure 8, a cooling mode in which the refrigeration compartment is provided with the cooling air, as per an embodiment, is disclosed herein. Here, the compressor and the axial fan 110-C are in the switched-ON operational condition and the knob 120 is in the second knob position S. The at least one cut-out portion 120-D1 is positioned in relation to the at least one air pathway 130-E for maintaining the at least one air pathway 130-E supplying a flow of cooling air to the refrigeration compartment open. Therefore, the cooling air is circulated through the refrigeration compartment only. Owing to the same, the cooling air is provided for cooling in the refrigeration compartment only.
The multi-mode air circulation system 100 for a refrigerator which is disclosed herein, overcomes the drawbacks observed in the air circulation systems in which air circulation is through natural convection. Particularly, multi-mode air circulation system 100 for a refrigerator which is disclosed herein, provides effective and faster cooling in the door compartment of the refrigeration compartment of the refrigerator. Additionally, ice formation in the evaporator compartment is quicker and effective with the multi-mode air circulation system 100 for a refrigerator which is disclosed herein. Moreover, defrosting in the evaporator compartment of the refrigerator is also achieved in less time. Furthermore, holistic cooling within the refrigerator by way of the air for freezing in the evaporator chamber as well as the cooling air in the refrigerator chamber is simultaneously provided. Therefore, loss of time for ice formation in the evaporator chamber, as well as for cooling of the contents in the refrigeration chamber, is avoided. Also, extra consumption of power is also avoided as ice formation in the evaporator chamber, as well as for cooling of the contents in the refrigeration chamber, is simultaneously possible. The active drop in the operating temperature depending on the specific user requirements, such as demand for ice in short time is possible. Additionally, having the contents in the refrigeration chamber cooled, along with ice formation, simultaneously, is achievable by operating the refrigerator in the specific mode of air circulation.
While specific language has been used to describe the present disclosure, any limitations arising on account thereto, are not intended. As would be apparent to a person in the art, various working modifications may be made to the method in order to implement the inventive concept as taught herein. The drawings and the foregoing description give examples of embodiments. Those skilled in the art will appreciate that one or more of the described elements may well be combined into a single functional element. Alternatively, certain elements may be split into multiple functional elements. Elements from one embodiment may be added to another embodiment. ,CLAIMS:WE CLAIM:
1. A multi-mode air circulation system (100) for a refrigerator, the multi-mode air circulation system (100) comprising:
a back plate (110) adapted to position in an evaporator compartment of the refrigerator, the back plate (110) comprising a freezer air vent (110-D) defined on a base (110-A) of the back plate (110);
an axial fan (110-C) adapted to position on the back plate (110) and to operate to generate a flow of air;
an air guider assembly (130) comprising an air diffuser (130-A) that is adapted to couple with the back plate (110), wherein the axial fan (110-C) accommodates between the air diffuser (130-A) and the back plate (110), the air guider assembly (130) comprising at least one air pathway (130-E) adapted to guide the flow of air from the axial fan (110-C) to a refrigeration compartment of the refrigerator, below the evaporator compartment; and
an air circulation regulator (120) disposed on the air diffuser (130-A) and positioned upstream to the at least one air pathway (130-E), wherein the air circulation regulator (120) is adapted to move with respect to the freezer air vent (110-D) or the at least one air pathway (130-E), to guide the flow of air to the evaporator compartment through the freezer air vent (110-D) or to the refrigeration compartment through the at least one air pathway (130-E).

2. A multi-mode air circulation system as claimed in claim 1, wherein the air circulation regulator (120) is adapted to change a position in an air circulation regulator slot (130-D) defined on the air diffuser (130-A) or the air circulation regulator (120) is adapted to rotatably change the position on a posterior side of the fan vent (110-B),
wherein the air circulation regulator (120) is adapted to guide the flow of air, into the evaporator compartment through the freezer air vent (110-D) or the refrigeration compartment through the at least one air pathway (130-E) or both, based on the position of the air circulation regulator (120), and operational conditions of the axial fan (110-C) and a compressor of the refrigerator.

3. The multi-mode air circulation system as claimed in claim 1, wherein the back plate (110) comprises:
the axial fan (110-C) disposed on a fan vent (110-B) defined on the base (110-A); and
an aperture (110-E) defined on the base (110-A) below the freezer air vent (110-D) to accommodate at least a portion of the air circulation regulator (120).

4. The multi-mode air circulation system as claimed in claim 1, wherein the air guider assembly (130) comprises:
a cover (130-B) disposed on the air diffuser (130-A) and adapted to cover the at least one air pathway (130-E), wherein the at least one air pathway (130-E) is disposed downstream to the air diffuser (130-A);
a fan slot (130-C) positioned upstream to the air diffuser (130-A) to support the axial fan (110-C); and
the air circulation regulator slot (130-D) disposed between the air diffuser (130-A) and the at least one air pathway (130-E) to accommodate the air circulation regulator (120) therebetween.

5. The multi-mode air circulation system as claimed in claim 1, wherein the air circulation regulator (120) is a slider (120) or a knob (120).

6. The multi-mode air circulation system as claimed in claim 5, wherein the slider (120) comprises a vertical face (120-A) and a horizontal face (120-C) extending orthogonally from an edge of the vertical face (120-C).

7. The multi-mode air circulation system as claimed in claim 5, wherein the slider (120) comprises a toggle (120-B) protruding from the vertical face (120-A).

8. The multi-mode air circulation system as claimed in claim 5, wherein the slider (120) is adapted to change the position in the air circulation regulator slot (130-D) from left to right and vice versa.

9. The multi-mode air circulation system as claimed in claim 1, wherein the air circulation regulator (120) is adapted to change the position in one of a first position (L), a second position (R), an intermediate position (M), a first knob position (I), an intermediate knob position (H) or a second knob position (S).

10. The multi-mode air circulation system as claimed in claim 1, wherein the compressor and the axial fan (110-C) are in a switched-ON operational condition and the slider (120) is in the first position (L), wherein the horizontal face (120-C) of the slider (120) is positioned in relation to the freezer air vent (110-D) for maintaining the freezer air vent (110-D) open and maintaining the at least one air pathway (130-E) closed for circulation of air through the freezer air vent (110-D) only, thereby providing air for freezing to form ice in the evaporator compartment.

11. The multi-mode air circulation system as claimed in claim 1, wherein the compressor is in a switched-OFF operational condition and the axial fan (110-C) is in the switched-ON operational condition and the slider (120) is in the first position (L), wherein the horizontal face (120-C) of the slider (120) is positioned in relation to the freezer air vent (110-D) for maintaining the freezer air vent (110-D) open and maintaining the at least one air pathway (130-E) closed for circulation of air through the freezer air vent (110-D) only, thereby providing air for circulation through the evaporator compartment for defrosting the ice formed therein.

12. The multi-mode air circulation system as claimed in claim 1, wherein the compressor and the axial fan (110-C) are in a switched-ON operational condition and the slider (120) is in the intermediate position (M), wherein the vertical face (120-A) and the horizontal face (120-C) of the slider (120) are positioned in relation to the freezer air vent (110-D) and the at least one air pathway (130-E) for maintaining the freezer air vent (110-D) and the at least one air pathway (130-E), partially open, for circulation of air for freezing through the freezer air vent (110-D) and for circulation of cooling air through the at least one air pathway (130-E), thereby partially providing air for freezing to form ice in the evaporator compartment, and partially providing the cooling air for cooling in the refrigeration compartment.

13. The multi-mode air circulation system as claimed in claim 1, wherein the compressor and the axial fan (110-C) are in the switched-ON operational condition and the slider (120) is in the second position (R), wherein vertical face (120-A) covers the freezer air vent (110-D) for maintaining the freezer air vent (110-D) closed and maintaining the at least one air pathway (130-E) open for circulation of cooling air through the at least one air pathway (130-E) only, thereby providing the cooling air for cooling in the refrigeration compartment.

14. The multi-mode air circulation system as claimed in claim 5, wherein the knob (120) comprises a dial (120-D) adapted to the fan vent (110-B), wherein the dial (120-D) is configured to rotate in the fan vent (110-B) on a posterior side of the back plate (110), wherein a knob adjuster (120-F) is exposed inside the evaporator compartment and disposed at a center of the dial (120-D), wherein the knob adjuster (120-F) is for rotatably adjusting the knob (120) during selection of a specific mode of air circulation within the evaporator compartment or the refrigerator compartment or both.

15. The multi-mode air circulation system as claimed in claim 14, wherein the dial (120-D) is adapted to the fan vent (110-B) by a bracket (120-E), wherein the axial fan (110-C) is disposed on the bracket (120-E), further wherein the dial (120-D) is configured to rotate inside the fan slot (130-C) on a posterior of the dial (120-D).

16. The multi-mode air circulation system as claimed in claim 14, wherein the dial (120-D) has at least one cut-out portion (120-D1) defined on a periphery (120-D2) of the dial (120-D) to selectively guide the flow of air from the axial fan (110-C) through the cut portion (120-D1) into the at least one air pathway (130-E), into the evaporator compartment or the refrigeration compartment or both.

17. The multi-mode air circulation system as claimed in claim 1, wherein the compressor and the axial fan (110-C) are in a switched-ON operational condition and the knob (120) is in the first knob position (I), wherein the at least one cut-out portion (120-D1) is positioned in relation to the at least one air pathway (130-E) for maintaining the at least one air pathway (130-E) supplying the flow of air to the evaporator compartment open, and maintaining the at least one air pathway (130-E) supplying the flow of air to the refrigeration compartment closed, for circulation of the air for freezing through the evaporator compartment only, wherein the air for freezing forms ice in the evaporator compartment.

18. The multi-mode air circulation system as claimed in claim 1, wherein the compressor is in a switched-OFF operational condition and the axial fan (110-C) is in the switched-ON operational condition and the knob (120) is in the first knob position (I), wherein the at least one cut-out portion (120-D1) is positioned in relation to the at least one air pathway (130-E) for maintaining the at least one air pathway (130-E) supplying a flow of air to the evaporator compartment open, and maintaining the at least one air pathway (130-E) supplying the flow of air to the refrigeration compartment closed, for circulation of the air through the evaporator compartment only, wherein the air for circulation through the evaporator compartment defrosts the ice formed therein.

19. The multi-mode air circulation system as claimed in claim 1, wherein the compressor and the axial fan (110-C) are in a switched-ON operational condition and the knob (120) is in the intermediate knob position (H), wherein the at least one cut-out portion (120-D1) is positioned in relation to the at least one air pathway (130-E) for maintaining the at least one air pathway (130-E) supplying a flow of cooling air to the evaporator compartment or the refrigeration compartment, partially open, for circulation of the cooling air, partially through the evaporator compartment or partially through the refrigeration compartment, wherein the cooling air is partially provided for freezing to form ice in the evaporator compartment, and the cooling air is partially provided for cooling in the refrigeration compartment.

20. The multi-mode air circulation system as claimed in claim 1, wherein the compressor and the axial fan (110-C) are in the switched-ON operational condition and the knob (120) is in the second knob position (S), wherein the at least one cut-out portion (120-D1) is positioned in relation to the at least one air pathway (130-E) for maintaining the at least one air pathway (130-E) supplying a flow of cooling air to the refrigeration compartment open, for circulation of the cooling air through the refrigeration compartment only, wherein the cooling air is provided for cooling in the refrigeration compartment.