Volute, air duct assembly and refrigeration equipment

Abstract

The utility model relates to the technical field of refrigeration equipment, in particular to a volute, an air duct assembly and refrigeration equipment. The volute is used for mounting a fan and comprises a mounting cavity, an air inlet part and a plurality of air outlet parts, the mounting cavity is used for mounting the fan, the air inlet part communicates with the mounting cavity, the fan can suck air from the outside through the air inlet part, the air outlet parts communicate with the mounting cavity, and the fan can discharge air to the outside of the volute through the air outlet parts. The width of the first ends of the air outlet parts is smaller than that of the second ends of the air outlet parts, the ends, close to the mounting cavity, of the air outlet parts are the first ends of the air outlet parts, and the ends, away from the mounting cavity, of the air outlet parts are the second ends of the air outlet parts. The multiple air outlet parts can supply air to the evaporator, the air supply and refrigeration efficiency can be improved, when the width of the first ends of the air outlet parts is smaller than that of the second ends of the air outlet parts, it can be guaranteed that the enough contact area exists between the second ends of the air outlet parts and the evaporator, and therefore the cooling efficiency of air outlet from the second ends of the air outlet parts is guaranteed.

Description

Technical Field

[0001] This application relates to the field of refrigeration equipment technology, specifically providing a volute, an air duct assembly, and a refrigeration device. Background Technology

[0002] In existing refrigeration equipment on the market, taking refrigerators as an example, the fans are basically located at the back of the refrigerator. Of course, there are also designs where the fans are located at the top of the refrigerator. When the fans are located at the top, because the airflow from the fans into the air ducts is more dispersed, some of the cooled air cannot flow back into the refrigeration chamber, thus easily reducing the refrigeration efficiency. Summary of the Invention

[0003] This application aims to solve the aforementioned technical problem, namely, to address the issue of dispersed airflow from the fan when it is installed at the top in existing refrigeration equipment.

[0004] This application provides a volute for mounting a fan. The volute includes: a mounting cavity for mounting the fan; an air inlet communicating with the mounting cavity, through which the fan draws air from the outside; and multiple air outlets communicating with the mounting cavity, through which the fan discharges air to the outside of the volute. The width of a first end of each of the multiple air outlets is smaller than the width of a second end. The end of each air outlet closer to the mounting cavity is the first end of the air outlet, and the end of each air outlet further away from the mounting cavity is the second end of the air outlet.

[0005] In the above-mentioned optional technical solution of the volute, the plurality of air outlets include a first air outlet and a second air outlet, wherein the air outlet direction of the first air outlet is opposite to the air outlet direction of the second air outlet.

[0006] In the above-mentioned optional technical solutions for the volute, the width of the second end of the first air outlet is equal to the width of the second end of the second air outlet.

[0007] In the above-mentioned optional technical solution of the volute, the bottom surface of the first end of the air outlet is higher than the bottom surface of the second end of the air outlet, so that the bottom surface of the air outlet slopes downward from the first end to the second end.

[0008] This application also provides an air duct assembly disposed in the refrigeration chamber of a refrigeration device. The air duct assembly can form a top air duct between itself and the inner top wall of the refrigeration chamber. The top air duct can accommodate a fan and an evaporator. The air duct assembly includes: a volute as described in any of the above technical solutions; a top plate for mounting the volute; the top plate is provided with an air inlet corresponding to the air inlet; the top plate is provided with a receiving cavity for accommodating the evaporator; and the air outlet communicates with the receiving cavity.

[0009] In the above-mentioned optional technical solution of the volute, the bottom plate of the receiving cavity is set as a water receiving tray, the second end of the air outlet overlaps the side wall of the receiving cavity, and the second end of the air outlet is higher than the bottom surface of the water receiving tray.

[0010] In the optional technical solution of the above-mentioned volute, the air duct assembly further includes a grille, which is provided at the air inlet in a direction away from the volute.

[0011] In the above-mentioned optional technical solution of the volute, the volute is provided with an annular protrusion, the annular protrusion is arranged around the air inlet and located outside the mounting cavity, the annular protrusion abuts against the top plate and is arranged around the outside of the air inlet.

[0012] In the above-mentioned optional technical solution of the volute, the top plate is provided with a recessed portion that is recessed in the direction of the volute, the air inlet is provided in the recessed portion, the grille is provided in the recessed portion, and the annular protrusion abuts against the recessed portion.

[0013] This application also provides a refrigeration device, including: a fan; an evaporator; a housing, wherein a refrigeration chamber is provided inside the housing, and the fan and the evaporator are disposed on the inner top wall of the refrigeration chamber; a volute as described in any of the above technical solutions, wherein the volute is disposed inside the refrigeration chamber, the fan is disposed in the mounting cavity of the volute, and the evaporator is disposed correspondingly to the air outlet; or, an air duct assembly as described in any of the above technical solutions, wherein the air duct assembly is disposed inside the refrigeration chamber and forms a top air duct between it and the inner top wall of the refrigeration chamber, the fan is disposed in the mounting cavity, and the evaporator is disposed in the receiving cavity.

[0014] When the above technical solution is adopted, the volute of this application is provided with multiple air outlets, and the multiple air outlets send air to the evaporator respectively, which can improve the air supply and cooling efficiency. When the width of the first end of the air outlet is smaller than the width of the second end of the air outlet, it can ensure that the second end of the air outlet has sufficient contact area with the evaporator, thereby ensuring the cooling efficiency of the air coming out from the second end of the air outlet. Attached Figure Description

[0015] The preferred embodiments of this application are described below with reference to the accompanying drawings, in which:

[0016] Figure 1 This is a schematic diagram of the refrigeration equipment of this application;

[0017] Figure 2 This is a schematic diagram of the fit between the air duct assembly and the evaporator in this application;

[0018] Figure 3 This is a schematic diagram of the air duct assembly of this application;

[0019] Figure 4 yes Figure 3 Sectional view of AA;

[0020] Figure 5 This is a bottom view of the volute of this application;

[0021] Figure 6 This is a top view of the volute of this application.

[0022] List of reference numerals in the attached diagram:

[0023] 1. Refrigeration equipment; 10. Cabinet; 11. Refrigeration chamber; 11a. Inner top wall of the refrigeration chamber; 12. Air duct assembly; 120. Volute; 121. Mounting cavity; 122. Air inlet; 123. Air outlet; 123a. First end of the air outlet; 123b. Second end of the air outlet; 1231. First air outlet; 1232. Second air outlet; 124. Top plate; 1241. Receiving cavity; 1242. Recess; 1243. Water tray; 1244. Air inlet; 125. Grille; 126. Annular protrusion; 13. Evaporator; 14. Fan; d1. Width of the first end of the air outlet; d2. Width of the second end of the air outlet; h1. Height of the bottom surface of the first end of the air outlet; h2. Height of the bottom surface of the second end of the air outlet; h3. Height of the bottom surface of the water tray. Detailed Implementation

[0024] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. In the following description relating to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The terms “first,” “second,” and similar terms used in this specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. “A plurality of” means two or more.

[0025] Unless otherwise stated, the orientation or positional relationship indicated by "lateral", "length", "width", "up", "down", "front", "back", "left", "right", "top", "bottom", "inner", and "outer" is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing this application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0026] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intervening element. Furthermore, "connection" should be interpreted broadly; for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0027] like Figure 1 As shown, this application provides a refrigeration device 1, which includes a fan 14, an evaporator 13, a volute 120, and a housing 10. A refrigeration chamber 11 is disposed within the housing 10. The fan 14 is disposed within the mounting cavity 121 of the volute 120. The evaporator 13 corresponds to the air outlet 123 of the volute 120. The volute 120, evaporator 13, and fan 14 are all disposed on the inner top wall 11a of the refrigeration chamber 11. In this configuration, the volute 120 gathers and guides the air drawn from the refrigeration chamber by the fan 14 to the evaporator 13, thereby preventing the air from dispersing to other parts of the air duct within the refrigeration chamber 11 and failing to return to the refrigeration chamber 11. Furthermore, the air outlet 123 concentrates and guides the air to the evaporator 13, which also improves the refrigeration efficiency of the air.

[0028] In addition, by placing the fan 14 and evaporator 13 on the top of the refrigeration chamber 11, the space for placing items in the refrigeration chamber 11 is not occupied. At the same time, placing the fan 14 and evaporator 13 on the inner top wall 11a of the refrigeration chamber 11, compared with placing them on the rear side of the refrigeration chamber 11, can avoid the fan 14 and evaporator 13 occupying more space in the depth direction of the refrigeration chamber 11, thereby ensuring that more items can be accommodated in the refrigeration chamber 11 without changing the volume of the housing 10.

[0029] In one embodiment, combined with Figure 1 and Figure 2When the air duct assembly 12 is installed inside the refrigeration chamber 11, and the air duct assembly 12 includes a volute 120 and a top plate 124, a top air duct (not shown in the figure) is formed between the top plate 124 and the inner top wall 11a of the refrigeration chamber 11. The volute 120 is installed inside the top air duct, the fan 14 is still installed inside the volute 120, and the evaporator 13 is installed inside the top air duct and corresponds to the air outlet 123 of the volute 120. At this time, the top plate 124 can support the volute 120 and the fan 14. At the same time, the top plate 124 and the inner top wall 11a of the refrigeration chamber 11 can also form a top air duct, which is more conducive to the convergence of air and the refrigeration cycle within the refrigeration chamber 11.

[0030] To further explain the function of the air duct assembly 12 and the volute 120 in the refrigeration chamber 11, the air duct assembly 12 and the volute 120 will be described in detail below.

[0031] Combination Figures 2 to 6 This application provides an air duct assembly 12, which includes a volute 120 and a top plate 124. The top plate 124 is used to mount the volute 120. The volute 120 includes a mounting cavity 121, an air inlet 122, and an air outlet 123. The air inlet 122 communicates with the mounting cavity 121. The top plate 124 is provided with an air inlet 1244 (not shown in the figure) corresponding to the air inlet 122. A fan 14 is disposed in the mounting cavity 121 of the volute 120. The fan 14 can draw air from the refrigeration chamber 11 through the air inlet 122. Multiple air outlets 123 are connected to the mounting cavity 121. The top plate 124 is provided with a receiving cavity 1241 for accommodating the evaporator 13. The air outlets 123 are connected to the receiving cavity 1241. The fan 14 can discharge air to the receiving cavity 1241 where the evaporator 13 is located through multiple air outlets 123. The width d1 of the first end 123a of the multiple air outlets 123 is smaller than the width d2 of the second end.

[0032] The end of the air outlet 123 closest to the mounting cavity 121 is the first end 123a of the air outlet 123, and the end of the air outlet 123 furthest from the mounting cavity 121 is the second end 123b of the air outlet 123. The cold air flowing into the cooling chamber 11 from the air duct is drawn into the cooling chamber 11 by the fan 14 after heat exchange and flows back into the top air duct through the air inlet 1244 and the air inlet 122. Then it is discharged to the air outlet 123 by the fan 14. Since the air outlet 123 is connected to the receiving cavity 1241, the air from the air outlet 123 flows into the receiving cavity 1241. Because an evaporator 13 is installed inside the receiving cavity 1241, the evaporator 13 cools the air flowing through the receiving cavity 1241. The cooled air flows into the air duct of the cooling chamber 11 and then flows into the cooling chamber 11 from the air outlet of the air duct. The cold air exchanges heat with the air in the cooling chamber 11 and then flows back to the top air duct, thus forming a cooling cycle. Multiple air outlets 123 are provided. Multiple air outlets 123 deliver air into the air duct of the cooling chamber 11, which can improve the air delivery efficiency, thereby ensuring that the air entering the top air duct from the air inlet 122 can be orderly delivered to the receiving cavity 1241 and exchange heat with the evaporator 13 inside the receiving cavity 1241 to achieve cooling. The arrangement of multiple air outlets 123 can improve the cooling efficiency.

[0033] Additionally, refer to Figure 6 When the width d1 of the first end 123a of the air outlet 123 is less than the width d2 of the second end 123b of the air outlet 123, the width of the first end 123a of the air outlet 123 is smaller, which can better concentrate the air. The width of the second end 123b of the air outlet 123 is larger, which can more easily guide the air. This ensures that the second end 123b of the air outlet 123 has sufficient contact area with the evaporator 13, thereby ensuring that the air flowing from the second end 123b of the air outlet 123 to the evaporator 13 can improve the cooling efficiency of the air when the contact area with the evaporator 13 is large enough.

[0034] In one embodiment, combined with Figures 2 to 6 The plurality of air outlets 123 include a first air outlet 1231 and a second air outlet 1232, wherein the air outlet direction of the first air outlet 1231 is opposite to that of the second air outlet 1232.

[0035] This application describes an example with two air outlets 123. The first air outlet 1231 and the second air outlet 1232 discharge air in two opposite directions. In this case, two evaporators 13 are correspondingly provided, and the two evaporators 13 are respectively located at the second ends 123b of the two air outlets 123, which facilitates the arrangement of the evaporators 13. In addition, when air ducts are provided on both sides of the refrigeration chamber 11, the air ducts on both sides are located on opposite side walls inside the refrigeration chamber 11, and the second ends 123b of the first air outlet 1231 and the second air outlet 1232 correspond to the air ducts on both sides. Therefore, the air discharge directions of the first air outlet 1231 and the second air outlet 1232 are opposite. In this case, it is convenient to arrange the volute 120 and the evaporator 13 in the top air duct.

[0036] In one embodiment, reference is made to... Figure 6 The width d2 of the second end 123b of the first air outlet 1231 is equal to the width d2 of the second end 123b of the second air outlet 1232, which can ensure that the air volume of the first air outlet 1231 and the second air outlet 1232 is approximately equal, thereby ensuring that the air volume of the air outlet from the cooling chamber 11 to the two side air ducts is approximately equal, and thus ensuring the uniformity of the air outlet from the two side air ducts into the cooling chamber 11.

[0037] In one embodiment, combined with Figures 2 to 4 The bottom plate of the receiving cavity 1241 is configured as a water receiving tray 1243. The second end 123b of the air outlet 123 overlaps the side wall of the water receiving tray 1243, and the second end 123b of the air outlet 123 is higher than the bottom surface of the water receiving tray 1243, that is, the height h2 of the bottom surface of the second end 123b of the air outlet 123 is higher than the height h3 of the bottom surface of the water receiving tray 1243. Since the temperature of the evaporator 13 is low, when the evaporator 13 cools the air entering the top air duct from the air inlet 122, some water vapor may condense into water on the surface of the evaporator 13. The water drips down the surface of the evaporator 13 into the water receiving tray 1243. Since the second end 123b of the air outlet 123 is higher than the bottom surface of the water receiving tray 1243, the water in the water receiving tray 1243 will not flow back into the volute 120.

[0038] In one embodiment, combined with Figure 4 and Figure 5The bottom surface of the first end 123a of the air outlet 123 is higher than the bottom surface of the second end 123b of the air outlet 123, that is, the height h2 of the bottom surface of the second end 123b of the air outlet 123 is lower than the height h1 of the bottom surface of the first end 123a of the air outlet 123, so that the bottom surface of the air outlet 123 slopes downward from the first end to the second end. At this time, the cross-section of the second end 123b of the air outlet 123 is larger than the cross-section of the first end 123a of the air outlet 123, thereby ensuring that the second end 123b of the air outlet 123 can have a larger contact area with the evaporator 13, thereby achieving more efficient cooling of the air. In addition, when there are condensed water droplets in the air outlet 123, the water can flow downward along the air outlet 123, so that the water droplets flow into the water receiving tray 1243 at the bottom of the receiving cavity 1241, thereby avoiding water accumulation in the air outlet 123 and the entire volute 120.

[0039] In one embodiment, reference is made to... Figure 4 The air duct assembly 12 also includes a grille 125, which protrudes from the air inlet 1244 in a direction away from the volute 120. Since the grille 125 protrudes from the air inlet 1244, the air intake area of ​​the grille 125 is larger than the area of ​​the air inlet 1244. Therefore, by providing the grille 125, the air intake area from the air inlet 1244 can be increased.

[0040] In one embodiment, combined with Figure 4 and Figure 5 The volute 120 is provided with an annular protrusion 126, which surrounds the air inlet 122 and is located outside the mounting cavity 121. The annular protrusion 126 abuts against the top plate 124 and surrounds the air inlet 1244. The annular protrusion 126 can seal the top plate 124 and the volute 120. The abutment between the annular protrusion 126 and the top plate 124 can prevent the air flowing back from the cooling chamber 11 to the air inlet 1244 from entering between the top plate 124 and the volute 120, thereby avoiding the problem of insufficient backflow air volume entering the top air duct.

[0041] In one embodiment, reference is made to... Figure 4 The top plate 124 is provided with a recessed portion 1242 that is recessed towards the volute 120. The air inlet 1244 is provided in the recessed portion 1242, and the grille 125 is protruding from the recessed portion 1242, with the annular protrusion 126 abutting against the recessed portion 1242. The recessed portion 1242 is recessed towards the volute 120. When the air flows into the top air duct in the cooling chamber 11, the recessed surface of the recessed portion 1242 can guide and converge the airflow, thereby further improving the return flow efficiency and ensuring the amount of airflow returning to the top air duct.

[0042] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A volute, characterized in that, For mounting a fan, the volute includes: The mounting cavity is used to install the fan. The air inlet is connected to the mounting cavity, and the fan can draw air from the outside through the air inlet. Multiple air outlets are connected to the mounting cavity, and the fan can discharge air to the outside of the volute through the multiple air outlets. The width of the first end of each of the multiple air outlets is smaller than the width of the second end. Wherein, the end of the air outlet closer to the mounting cavity is the first end of the air outlet, and the end of the air outlet farther from the mounting cavity is the second end of the air outlet.

2. The volute according to claim 1, characterized in that, The plurality of air outlets include a first air outlet and a second air outlet, wherein the air outlet direction of the first air outlet is opposite to that of the second air outlet.

3. The volute according to claim 2, characterized in that, The width of the second end of the first air outlet is equal to the width of the second end of the second air outlet.

4. The volute according to any one of claims 1 to 3, characterized in that, The bottom surface of the first end of the air outlet is higher than the bottom surface of the second end of the air outlet, so that the bottom surface of the air outlet slopes downward from the first end to the second end.

5. A duct assembly, characterized in that, The air duct assembly is disposed within the refrigeration chamber of the refrigeration equipment, and can form a top air duct between itself and the inner top wall of the refrigeration chamber. The top air duct can accommodate a fan and an evaporator. The air duct assembly includes: The volute as described in any one of claims 1 to 4 above; The top plate is used to install the volute. The top plate is provided with an air inlet corresponding to the air inlet section. The top plate is provided with a receiving cavity to accommodate the evaporator. The air outlet section is connected to the receiving cavity.

6. The air duct assembly according to claim 5, characterized in that, The bottom plate of the receiving cavity is configured as a water receiving tray, the second end of the air outlet overlaps the side wall of the receiving cavity, and the second end of the air outlet is higher than the bottom surface of the water receiving tray.

7. The air duct assembly according to claim 5, characterized in that, The air duct assembly also includes a grille that protrudes from the air inlet in a direction away from the volute.

8. The air duct assembly according to claim 7, characterized in that, The volute is provided with an annular protrusion, which is arranged around the air inlet and located outside the mounting cavity. The annular protrusion abuts against the top plate and is arranged around the outside of the air inlet.

9. The air duct assembly according to claim 8, characterized in that, The top plate is provided with a recessed portion that is recessed towards the volute, the air inlet is provided in the recessed portion, the grille is provided in the recessed portion, and the annular protrusion abuts against the recessed portion.

10. A refrigeration device, characterized in that, include: Fan; Evaporator; The housing contains a refrigeration chamber, and the fan and the evaporator are located on the inner top wall of the refrigeration chamber. The volute according to any one of claims 1 to 4 is disposed within the refrigeration chamber, the fan is disposed within the mounting cavity of the volute, and the evaporator is correspondingly disposed with the air outlet; or, The air duct assembly according to any one of claims 5 to 9 is disposed in the refrigeration chamber and forms a top air duct between the air duct assembly and the inner top wall of the refrigeration chamber, the fan is disposed in the mounting cavity, and the evaporator is disposed in the receiving cavity.

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