Description:The following specification describes and ascertains the nature of this invention and the manner in which it is to be performed:

Field of the invention
[0001] This disclosure relates to an evaporator of a household appliance.

Background of the invention
[0002] Generally, a roll bond evaporator having refrigerant flow circuits in a conventional appliance has a 20 to 25 liters storage capacity. Two or more ice trays can be stored in the provided space. When we are placing the ice trays in the roll bond evaporator, the space above the ice trays is not usable / storable. There is no shelf / partition available to keep the ice tray. The present invention provides a solution for the above disclosed problem.

[0003] A patent application CN211601203 discloses a utility model relates to a bilayer structure's inflation evaporimeter, install the fixing device on the refrigerator box inner bag including the evaporimeter body with the evaporimeter body, cloth has the evaporation pipe on the evaporimeter body, and the evaporation pipe forms its characterized in that with the inflation technology: the evaporator body is an S-shaped evaporator, the fixing device is an evaporator door frame, the S-shaped evaporator is provided with three layers of horizontal laminates and divides an evaporator chamber into two layers of storage spaces, notches are formed in arc-shaped bent positions at two ends of a second layer of laminate of the S-shaped evaporator, and the depth of each notch is matched with the installation depth of the S-shaped evaporator assembled on the evaporator door frame.

Brief description of the invention:
[0004] It is an object of the invention to provide an evaporator of a household appliance.

[0005] The objects are solved by an evaporator of a household appliance having the features according to claims 1 and 10.

[0006] The invention relates to an evaporator of a household appliance. The appliance comprises at least one refrigerant flow circuit arranged spaced apart in the appliance. The appliance further comprises an evaporator having the at least one refrigerant flow circuit. The evaporator comprises an additional shelf formed in an interior region of the evaporator for storing at least one refrigeration item.
[0007] A feature of this invention is that, the additional shelf is formed as an integral part of the evaporator and the at least one refrigerant flow circuit is positioned in the additional shelf for direct cooling.

[0008] Another feature of this invention is that, an additional space is formed in the interior region of the evaporator for storing at least one refrigeration item.

[0009] Another feature of this invention is that, the evaporator and the additional shelf in the evaporator is made to form a roll-bond shape for accommodating the at least one refrigeration item.

[0010] Another feature of this invention is that, the evaporator is made in the form of a S-shape for accommodating the at least one refrigerator item.

[0011] Another feature of this invention is that, a partition is formed in the evaporator due to the S-shape such that, the evaporator is divided into multiple portions for storing the at least one refrigeration item.

[0012] Another feature of this invention is that, a straight the side surface of one portion is made to be in contact with a bended side surface of another portion.

[0013] Another feature of this invention is that, the evaporator comprises an additional shelf in each of the portions of the evaporator for storing at least one refrigeration item.

[0014] Another feature of this invention is that, the at least one refrigerant circuit is positioned in the partition of the evaporator for direct cooling of the stored item.

[0015] Another feature of this invention is that, dimensions of the additional shelf is made corresponding to dimensions of the at least one refrigeration item, wherein the at least one refrigeration item is an ice tray.

[0016] With the above disclosed additional shelf in the evaporator of the household appliance, the user can store more items as an additional storing space is formed due to the new design. The evaporator which acts as a freezer compartment in the appliance allows the user to store the icetrays in the additional shelf and other items that needs refrigeration in the additional space. The other shape (which is S-shape) of the evaporator allows multiple portions for storing the items that needs refrigeration.

[0017] These new designs of the evaporator not only provide direct cooling to the items as the refrigeration circuits are made to pass through the layers of the evaporator. but also provides increases the storing capacity when compared to an evaporator of a conventional appliance. The above disclosed design of evaporator provides a low-cost solution and an effective utilization of freezer space.

Brief description of the accompanying drawings
An embodiment of the disclosure is described with reference to the following accompanying drawings.
[0018] Figure 1 illustrates an evaporator in a household appliance, in accordance with an embodiment of this invention; and
[0019] Figure 2 illustrates an evaporator in a household appliance, in accordance with an embodiment of this invention.

Detailed description of the embodiments
[0020] Figure 1 illustrates an additional shelf in an evaporator of a household appliance in a household appliance, in accordance with one embodiment of the invention. The appliance 10 comprises at least one refrigerant flow circuit 12 arranged spaced apart in the appliance 10. The appliance 10 further comprises an evaporator 14 having the at least one refrigerant flow circuit 12. The evaporator 14 comprises an additional shelf 16 formed in an interior region 18 of the evaporator 14 for storing at least one refrigeration item 20.

[0021]Further , the construction of the appliance 10 and the components of the appliance 10 is explained in detail. According to one embodiment of the invention, the appliance 10 is a refrigerator. The appliance 10 is chosen from a group of appliances comprising a single door refrigerator, a mutli-door refrigerator and the like. The refrigerant flow circuit 12 comprises a refrigerant that is flowing across the appliance 10 which undergoes various stages for providing cooling inside the appliance 10.
[0022]The refrigerant when passed through the flow circuits 12 present in the evaporator 14 provides a direct cooling effect , such that, the items 20 stored in the appliance 10 are cooled using the refrigerant. According to one embodiment of the invention, the evaporator 14 acts as a freezer compartment in a single door appliance 10. The at least one refrigerant flow cirucits 12 are positioned across the evaporator 14 and are spaced apart for ease of flowing of the refrigerant and for effective heat absorption. According to another embodiment, the evaporator 14 having the flow circuits 12 is positioned in a freezer compartment of the appliance 10.

[0023]According to one embodiment of the invention, the additional shelf 16 is formed as an integral part of the evaporator 14 and the at least one refrigerant flow circuit 12 is positioned in the additional shelf 16 for direct cooling. The additional shelf 16 design as shown in the figure 1 is made in such a way that, at least one refrigeration item 20 is stored inside the shelf 16 with ease. Ie., The dimensions of the shelf 16 is made corresponding to the dimensions of the at least one refrigeration item 20, wherein one such refrigeration item 20 is an ice tray. The length and width of the additonal shelf 16 is made according to the dimensions of the ice tray 20 such that, more than one ice tray 20 can be stored inside the additonal shelf 16.

[0024]As shown in the figure 1 , it is to be noted that, the addditonal shelf 16 can be made attached to an upper surface of the evaporator 14 . However, it is to be noted that,the additonal shelf 16 can be made attached to a down surface of the evaporator 14. In the later arrangment, the user can store the other items 20 (apart from the ice trays) above the additonal shelf 16. The additional shelf 161 is made of same material like the evaporator 14 (eg: Aluminium) and is not restricted to one shape as shown in the figure 1. In this arrangment the evaporator 14 and the additional shelf 16 are made to form in a roll bond shape for accommodating the at least one refrigeration item 20.

[0025]Due to the presence of the additonal shelf 16 in the evaporator 14, an unused area inside the evaporator 14 is effectively used as it provides an additional storage space 22. The additional storage space 22 is formed in the interior region 18 of the evaporator 14 for storing at least one refrigeration item 20.

[0026] Figure 2 illustrates an evaporator in a household appliance, in accordance with an embodiment of this invention.According to the embodiment of the invention, the evaporator 14 is made in the form of a S-shape for accommodating the at least one refrigerator item 20. A partition 23 is formed in the evaporator 14 due to the S-shape ,such that, the evaporator 14 is divided into multiple portions 24 for storing the at least one refrigeration item 20.According to one embodiment of the invention, the evaporator 14 is divided into two portions (24(a),24(b)) due to partition 23. However it is to be noted that, the evaporator 14 shape is not restricted to S-shape but can be of any other shape that forms multiple storing portions 24 . At least one refrigerant flow circuit 12 is made to pass through the partition 23 for providing direct cooling to the items 20 stored inside the mutliple portions 24 of the evaporator 14.

[0027]The S-shaped evaporator 14 comprises two straight side surfaces 26 and two bended side surfaces 28. In the above design, a straight the side surface 26 of one porton 24 is made to be in contact with a bended side surface 28 of another portion 24. For instance, if two portions 24 of said evaporator 14 are referred as a first portion 24 (a) and a second portion 24(b), wherein the first portion 24(a) being on the top and the second portion 24(b) being on the bottom. The first portion 24(a) comprises one straight side surface 26(a) and a bended side surface 28(a) and the second portion 24(b) comprises one straight side surface 26(b) and a bended side surface 28(b).

[0028]In the above disclosed design, the straight side surface 26(a) of first portion 24(a) is made in contact with the bended side surface 26(a) of the second portion 24(b) and the bended side surface 26(b) of the first portion 24(a) is made in contact with the straight side surface 28(a) of the second portion 24(b). Due to this kind of arrangment, all the side surfaces (26,28) are sealed and there wont be any gap formed between the portions 24 of the evaporator 14.

[0029] According to one embodiment of the invention, the evaporator 14 comprises an additional shelf (not shown) in each of the portions24 for storing at least one refrigeration item 20. Small refrigeration items 20 like medicines can be stored in the additonal shelf made in each of the portions 24 of the evaporator 14. The mutliple portions 24 and the respective additonal shelfs comprises at least one refrigerant flow circuit 12 for providing the direct cooling to the items 20 stored in the evaporator 14.

[0030]A method of working of the above disclosed evaporator 14 is explained in detail. As known in the state of art, the evaporator14 removes the heat from the items 20 stored in the interior region 18 by using the refrigerant flow circuits 12. The refrigerant present in the flow circuits 12 evaporates from a liquid form back into a gaseous form. As the refrigerant turns from a liquid into a gas through evaporation, it cools the area around it (inside region 18 of evaporator 14), producing the proper environment for storing items 20.The user can store multiple items 20 along with the regular ice trays in the evaporator 14, as there are additoinal shelf 16 and multiple portions 24 available with the above disclosed designs. Due to the position of the refrigerant flow circuits 12 in the evaporator 14 and in the additoinal shelfs 16, partition 23, multiple portions 24, a direct cooling is provided to the items 20 that are stored in the evaporator 14.

[0031] With the above disclosed additional shelf 16 in the evaporator 14 of the household appliance 10, the user can store more items 20 as an additional storage space 22 is formed due to the new design. The evaporator 14 which acts as a freezer compartment in the appliance 10 allows the user to store the icetrays in the additional shelf 16 and other items 2- that needs refrigeration in the additional space 22. The other shape (which is S-shape) of the evaporator 14 allows formation of multiple portions 24 for storing the items 20 that needs refrigeration.

[0032]These new designs of the evaporator 14 not only provides direct cooling to the items 20 as the refrigeration circuits 12 are made to pass through the layers of the evaporator 14. but also provides increases the storing capacity when compared to an evaporator 14 of a conventional appliance. The above disclosed designs of evaporator 14 provides a low-cost solution and an effective utilization of freezer space.

[0033] It should be understood that embodiments explained in the description above are only illustrative and do not limit the scope of this disclosure. Many such embodiments and other modifications and changes in the embodiment explained in the description are envisaged. The scope of the invention is only limited by the scope of the claims.
List of Reference Signs
10 household appliance
12 at least one refrigerant flow circuit
14 evaporator
16 additional shelf
18 interior region of evaporator
20 at least one refrigeration item
22 additional storage space
23 partition
24 multiple portions
24(a) first portion
24(b) second portion
26 straight side surface
26(a) straight side surface of the first portion
26(b) straight side surface of the second portion
28 bended side surface
28(a) bended side surface of the first portion
28(b) bended side surface of the second portion

, Claims:We Claim:
1. A household appliance (10) comprising:
- at least one refrigerant flow circuit (12) arranged spaced apart in said appliance (10);
characterized in that:
- an evaporator (14) having said at least one refrigerant flow circuit (12), said evaporator (14) comprises an additional shelf (16) formed in an interior region (18) of said evaporator (14) for storing at least one refrigeration item (20).
2. The appliance (10) as claimed in claim 1, wherein said additional shelf (16) is formed as an integral part of said evaporator (14) and said at least one refrigerant flow circuit (12) is positioned in said additional shelf (16) for direct cooling.

3. The appliance (10) as claimed in claim 1, wherein an additional storage space (22) is formed in said interior region (18) of said evaporator (14) for storing at least one refrigeration item (20).

4. The appliance (10) as claimed in claim 1, wherein said evaporator (14) and an additional shelf (16) in said evaporator (14) is made in a roll-bond shape for accommodating said at least one refrigeration item (20).

5. The appliance (10) as claimed in claim 1, wherein said evaporator (14) is made in the form of a S-shape for accommodating said at least one refrigerator item (20).

6. The appliance (10) as claimed in claim 5, wherein a partition (23) is formed in said evaporator (14) due to said S-shape such that, said evaporator (14) is divided into multiple portions (24) for storing said at least one refrigeration item (20).

7. The appliance (10) as claimed in claim 6, wherein a straight said side surface (26) of one said portion (24(a)) is made to be in contact with a bended side surface (28) of another said portion (24(b)).
8. The appliance (10) as claimed in claim 5, wherein said evaporator (14) comprises an additional shelf in each of said portions (24) of said evaporator (14) for storing at least one refrigeration item (20).

9. The appliance (10) as claimed in claim 6, wherein said at least one refrigerant flow circuit (12) is positioned in said partition (23) of said evaporator (14) for direct cooling of said stored item (20).

10. The appliance (10) as claimed in claim 1, wherein dimensions of said additional shelf (16) is made corresponding to dimensions of said at least one refrigeration item (20), wherein said at least one refrigeration item (20) is an ice tray.