Wind scooper and refrigerator

Abstract

The wind scooper comprises a wind scooper body, the wind scooper body is provided with an airflow channel penetrating in the length direction, the wind scooper body comprises a first connecting part, a transition part and a second connecting part which are sequentially arranged in the length direction, and the sizes of the first connecting part, the transition part and the second connecting part are gradually reduced. The airflow channel comprises a square inner cavity, a cone cavity and a round inner cavity which are sequentially arranged in the length direction, the square inner cavity is arranged on the first connecting part, the square inner cavity is matched with the condenser in shape and used for sleeving the condenser, the round inner cavity is arranged on the second connecting part and used for being in butt joint with a connector of a fan, and the cone cavity is arranged on the transition part. The large end of the cone cavity is communicated with the square inner cavity, and the small end of the cone cavity is communicated with the round inner cavity. An airflow channel of the wind scooper is changed from large to small, seamless butt joint between the condenser and the fan is achieved, the effective area of an air inlet of the fan is increased, a large amount of airflow is prevented from crossing the fan to escape, flow loss is reduced, vortexes in the wind scooper are reduced, and the working efficiency of the fan is improved.

Description

Technical Field

[0001] This utility model relates to an air guide cover and a refrigerator. Background Technology

[0002] The efficiency of the bottom fan in a refrigerator is one of the important performance indicators for evaluating the bottom cooling system of a built-in refrigerator. Currently, bottom cooling systems in built-in refrigerators often use microchannel condensers. To improve the heat dissipation efficiency of the microchannel condenser, a forced convection fan is also added to the cooling system. When the convection fan is working, it accelerates the airflow around the condenser, improving the heat exchange effect of the condenser. However, with this cooling method, the fan efficiency is low, resulting in poor heat exchange performance of the condenser. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the low efficiency of existing fan tooling and to provide a wind guide cover and a refrigerator.

[0004] The present invention solves the above-mentioned technical problems through the following technical solution:

[0005] An air guide shroud for use with a condenser and a fan includes a shroud body having an airflow channel extending along its length. The shroud body includes a first connecting portion, a transition portion, and a second connecting portion arranged sequentially along its length and gradually decreasing in size. The airflow channel includes a square inner cavity, a conical cavity, and a circular inner cavity arranged sequentially along the length. The square inner cavity is located at the first connecting portion and is fitted to the shape of the condenser. The circular inner cavity is located at the second connecting portion and is used to connect with the interface of the fan. The conical cavity is located at the transition portion, with its large end communicating with the square inner cavity and its small end communicating with the circular inner cavity.

[0006] In this design, the air guide shroud body includes a first connecting part, a transition part, and a second connecting part, arranged sequentially along its length and gradually decreasing in size. The square inner cavity of the first connecting part is used to house the condenser, and the circular inner cavity of the second connecting part is used to connect with the fan interface. A conical cavity is provided between the square and circular inner cavities, realizing the transformation of the airflow channel of the air guide shroud body from large to small, and also achieving seamless connection between the condenser and the fan. This increases the effective area of ​​the fan inlet, prevents a large amount of airflow from escaping over the fan, reduces vortices within the air guide shroud, lowers flow loss, and improves fan efficiency. When the fan is working, the fan drives air through the airflow channel to carry away the heat from the condenser.

[0007] Preferably, the wind shield body is integrally formed.

[0008] In this design, the one-piece molded fan cover body has high structural strength, fewer parts, and is easy to install and manufacture. The fan cover body can be manufactured using casting or injection molding processes, which are convenient. Preferably, the fan cover body is made of metal or plastic, facilitating one-piece casting or injection molding.

[0009] Preferably, the transition portion is a regular polyhedral structure, and the cone cavity is provided inside the regular polyhedral structure.

[0010] In this design, the transition section is a regular polyhedral structure, which makes the cone cavity axially symmetrical. This facilitates the uniform flow of gas from the square inner cavity to the circular inner cavity, avoiding eddies caused by dead corners within the cone cavity. It also makes it easier to manufacture molds for casting or injection molding.

[0011] Preferably, the transition portion is connected between adjacent surfaces by an arcuate surface.

[0012] In this solution, the above-mentioned structural design is adopted to form a chamfer, which reduces the volume of the structure, saves manufacturing materials, and lowers costs.

[0013] Preferably, the shroud body further includes an annular flange portion, which is connected to the second connecting portion and is used to be fitted around the periphery of the fan.

[0014] In this design, the annular flange fits around the fan to form a closed structure, which improves the exhaust effect and facilitates connection with other interfaces, preventing gas escape.

[0015] Preferably, a support member is connected to the annular flange portion, and the support member is used to install the fan.

[0016] In this solution, the above-mentioned structural configuration allows the fan to be easily installed on the annular flange via the support components, without the need for an external support structure.

[0017] Preferably, one end of the support member is connected to the annular flange portion, and the other end of the support member extends toward the center of the annular flange portion. There are multiple support members, which are evenly spaced along the circumferential direction of the annular flange portion. The other end of the multiple support members is used to install the fan.

[0018] In this solution, the above-mentioned structural setup is adopted. Multiple support components can fix the fan in the middle of the annular flange, making the fan evenly stressed, improving the fixing effect, and also allowing the fan interface to accurately align with the circular inner cavity, thereby improving the fan's working efficiency.

[0019] Preferably, the first connecting part is a square structure, and a mounting groove is provided at the corner of the square structure, the mounting groove being used to hold the pipe of the condenser.

[0020] In this design, the aforementioned structural configuration, via the mounting groove, facilitates the securing of the condenser's piping at the corner of the shroud body, improving stability and preventing interference between the condenser's piping and external components. The first connecting part has a square structure, which facilitates the formation of a uniform square inner cavity to match the square shape of the condenser.

[0021] Preferably, the ratio of the area of ​​the circular inner cavity to the area of ​​the square inner cavity is greater than 0.5 and less than 1.

[0022] In this design, if the ratio of the area of ​​the circular inner cavity to the area of ​​the square inner cavity is not greater than 0.5, the size of the fan and condenser will be relatively small, resulting in a mismatch between the fan and condenser and poor cooling effect. If the ratio of the area of ​​the circular inner cavity to the area of ​​the square inner cavity is greater than 1, the size of the fan and condenser will be relatively large, failing to fully utilize the fan's power and resulting in power waste. This also leads to a larger air guide shroud. Therefore, the ratio of the area of ​​the circular inner cavity to the area of ​​the square inner cavity is set to be greater than 0.5 and less than 1, ensuring a good match between the fan and condenser while balancing the fan's power and the condenser's cooling effect.

[0023] A refrigerator includes a condenser, a fan, and an air guide shroud as described above, wherein the condenser is mounted on a first connecting portion of the air guide shroud, and the fan is mounted on a second connecting portion of the air guide shroud.

[0024] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0025] The positive and progressive effects of this utility model are as follows: The air guide shroud body includes a first connecting part, a transition part, and a second connecting part arranged sequentially along the length direction with gradually decreasing dimensions. The square inner cavity of the first connecting part is used to house the condenser, and the circular inner cavity of the second connecting part is used to connect with the fan interface. A conical cavity is provided between the square inner cavity and the circular inner cavity, realizing the transformation of the airflow channel of the air guide shroud body from large to small, and also achieving seamless connection between the condenser and the fan. This increases the effective area of ​​the fan inlet, prevents a large amount of airflow from escaping over the fan, reduces eddies within the air guide shroud, lowers flow loss, and improves fan efficiency. When the fan is working, the fan drives air through the airflow channel to carry away the heat from the condenser. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the air guide cover according to a preferred embodiment of the present invention. Figure 1 .

[0027] Figure 2 This is a schematic diagram of the structure of the air guide cover according to a preferred embodiment of the present invention. Figure 2 .

[0028] Figure 3 This is a schematic diagram of the structure of the air guide cover according to a preferred embodiment of the present invention. Figure 3 .

[0029] Figure 4 This is a schematic diagram of the structure of the condenser and fan installed on the air guide shroud in a preferred embodiment of the present invention. Figure 1 .

[0030] Figure 5 This is a schematic diagram of the structure of the condenser and fan installed on the air guide shroud in a preferred embodiment of the present invention. Figure 2 .

[0031] Explanation of reference numerals in the attached figures:

[0032] Condenser 10

[0033] Fan 20

[0034] Windshield body 1

[0035] First connecting part 11

[0036] Square inner cavity 111

[0037] Mounting slot 112

[0038] Transition section 12

[0039] Conical cavity 121

[0040] Regular polyhedral structure 122

[0041] Circular surface 123

[0042] Second connecting part 13

[0043] Circular inner cavity 131

[0044] 14 Circular flange

[0045] Support component 2

[0046] 100 in the length direction Detailed Implementation

[0047] The present invention will be described more clearly and completely below by way of embodiments and in conjunction with the accompanying drawings, but the present invention is not limited to the scope of the embodiments described herein.

[0048] like Figures 1-5As shown, this embodiment discloses an air guide shroud for use with a condenser 10 and a fan 20. The air guide shroud includes a shroud body 1, which has an airflow channel extending along the length direction 100. The shroud body 1 includes a first connecting part 11, a transition part 12, and a second connecting part 13 arranged sequentially along the length direction 100 and gradually decreasing in size. The airflow channel includes a square inner cavity 111, a conical cavity 121, and a circular inner cavity 131 arranged sequentially along the length direction 100. The square inner cavity 111 is located at the first connecting part 11 and matches the shape of the condenser 10 for fitting the condenser 10. The circular inner cavity 131 is located at the second connecting part 13 and is used to connect with the interface of the fan 20. The conical cavity 121 is located at the transition part 12, with the large end of the conical cavity 121 communicating with the square inner cavity 111 and the small end of the conical cavity 121 communicating with the circular inner cavity 131.

[0049] like Figures 1-5 As shown, in this embodiment, the air guide shroud body 1 includes a first connecting portion 11, a transition portion 12, and a second connecting portion 13 arranged sequentially along the length direction 100 and gradually decreasing in size. The square inner cavity 111 of the first connecting portion is used to house the condenser 10, and the circular inner cavity 131 of the second connecting portion 13 is used to connect with the interface of the fan 20. A conical cavity 121 is provided between the square inner cavity 111 and the circular inner cavity 131 for connection, realizing the transformation of the airflow channel of the air guide shroud body 1 from large to small, and also realizing the seamless connection between the condenser 10 and the fan 20. This increases the effective area of ​​the air inlet of the fan 20, prevents a large amount of airflow from escaping over the fan 20, reduces the vortex in the air guide shroud, reduces flow loss, and improves the working efficiency of the fan 20. When the fan 20 is working, the fan 20 drives air through the airflow channel to carry away the heat of the condenser 10.

[0050] In this embodiment, the wind shield body 1 is integrally formed. The integrally formed wind shield body 1 has high structural strength, fewer parts, and is also easy to install and manufacture. Preferably, the wind shield body 1 is made of metal or plastic, and the wind shield body 1 can be manufactured using casting or injection molding processes, which are convenient to process.

[0051] In this embodiment, the wind shield body 1 is made of plastic, which can reduce noise.

[0052] like Figures 1-3 As shown, the transition section 12 is a regular polyhedral structure 122, and a conical cavity 121 is provided inside the regular polyhedral structure 122. The transition section 12 is a regular polyhedral structure 122, which makes the conical cavity 121 have an axisymmetric structure, which facilitates the uniform flow of gas in the square inner cavity 111 to the circular inner cavity 131 through the conical cavity 121, avoids dead corners in the conical cavity 121 and the generation of vortices, and also facilitates the manufacture of molds for casting or injection molding.

[0053] like Figure 2 As shown, the transition section 12 is connected between adjacent surfaces by a rounded surface to form a chamfer, which reduces the volume of the structure, saves manufacturing materials, and reduces costs.

[0054] like Figures 1-5 As shown, the shroud body 1 also includes an annular flange 14, which is connected to the second connecting part 13. The annular flange 14 is used to fit around the periphery of the fan 20. The annular flange 14 fits around the periphery of the fan 20 to form a closed structure, which improves the exhaust effect and facilitates docking with other interfaces to prevent gas escape.

[0055] like Figure 4 and Figure 5 As shown, the air guide cover encloses the condenser 10 and the fan 20, making the structural components less likely to be scratched by the pipes, sheet metal parts and other components in the bottom heat dissipation system, thus providing protection. At the same time, it can also fix the position of the two to prevent them from shifting due to airflow interference.

[0056] like Figures 1-5 As shown, a support member 2 is connected to the annular flange portion 14, and the support member 2 is used to install the fan 20. This allows the fan 20 to be installed on the annular flange portion 14 via the support member 2, without the need for an external support structure.

[0057] like Figures 1-5 As shown, one end of the support member 2 is connected to the annular flange portion 14, and the other end of the support member 2 extends toward the center of the annular flange portion 14. Multiple support members 2 are evenly spaced along the circumferential direction of the annular flange portion 14. The other end of each support member 2 is used to mount the fan 20. The multiple support members 2 can fix the fan 20 to the center of the annular flange portion 14, ensuring even force distribution on the fan 20, improving the fixing effect, and allowing the interface of the fan 20 to accurately align with the circular inner cavity 131, thus improving the working efficiency of the fan 20.

[0058] like Figures 1-5 As shown, the first connecting part 11 has a square structure, and a mounting groove 112 is provided at the corner of the square structure. The mounting groove 112 is used to hold the pipe of the condenser 10. The mounting groove 112 makes it easy to hold the pipe of the condenser 10 at the corner of the fan cover body 1, improves the fixing effect, and also prevents the pipe of the condenser 10 from interfering with external components.

[0059] The first connecting part 11 has a square structure, which facilitates the formation of a uniform square inner cavity 111 inside, so as to match the shape of the square condenser 10.

[0060] In this embodiment, the ratio of the area of ​​the circular inner cavity 131 to the area of ​​the square inner cavity 111 is greater than 0.5 and less than 1. If the ratio of the area of ​​the circular inner cavity 131 to the area of ​​the square inner cavity 111 is not greater than 0.5, the size of the fan 20 and the condenser 10 will be relatively small, resulting in a mismatch between the fan 20 and the condenser 10 and poor cooling effect. If the ratio of the area of ​​the circular inner cavity 131 to the area of ​​the square inner cavity 111 is greater than 1, the size of the fan 20 and the condenser 10 will be relatively large, failing to fully utilize the power of the fan 20, resulting in power waste and a larger air guide shroud volume. Therefore, the ratio of the area of ​​the circular inner cavity 131 to the area of ​​the square inner cavity 111 is set to be greater than 0.5 and less than 1, so that the fan 20 and the condenser 10 are matched, balancing the power of the fan 20 and the cooling effect of the condenser 10.

[0061] In this embodiment, the rotation radius of the fan blades of the fan 20 is 71mm, and the radius of the fan's air intake circular area is 80mm. The radius of the fan's air intake circular area is larger than the rotation radius of the fan blades, which improves the exhaust effect and prevents interference between the fan and the fan cover body. If the condenser is too close to the fan blades, it will not be conducive to the fan's air extraction. Therefore, the center distance between the condenser 10 and the fan blades is set to 64mm to improve the air extraction effect, while also taking into account the power of the fan 20 and the cooling effect of the condenser 10.

[0062] This embodiment also discloses a refrigerator, which includes a condenser 10, a fan 20 and an air guide shroud as described above. The condenser 10 is installed on the first connecting part 11 of the air guide shroud, and the fan 20 is installed on the second connecting part 13 of the air guide shroud.

[0063] In the description herein, it should be understood that the terms "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0064] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A draft shroud for use in condensers and fans, characterized in that, It includes a fan shroud body, which has an airflow channel extending along its length. The fan shroud body includes a first connecting part, a transition part, and a second connecting part arranged sequentially along its length and gradually decreasing in size. The airflow channel includes a square inner cavity, a conical cavity, and a circular inner cavity arranged sequentially along its length. The square inner cavity is located at the first connecting part and matches the shape of the condenser for fitting the condenser. The circular inner cavity is located at the second connecting part and is used to connect with the interface of the fan. The conical cavity is located at the transition part, with its large end communicating with the square inner cavity and its small end communicating with the circular inner cavity.

2. The air guide shroud as described in claim 1, characterized in that, The wind shield body is integrally formed.

3. The air guide shroud as described in claim 1, characterized in that, The transition section is a regular polyhedron structure, and the cone cavity is provided inside the regular polyhedron structure.

4. The air guide shroud as described in claim 3, characterized in that, The transition section connects adjacent surfaces with an arc surface.

5. The air guide shroud as described in claim 1, characterized in that, The shroud body also includes an annular flange portion, which is connected to the second connecting portion and is used to be fitted around the periphery of the fan.

6. The air guide shroud as described in claim 5, characterized in that, A support member is connected to the annular flange portion, and the support member is used to install the fan.

7. The air guide shroud as described in claim 6, characterized in that, One end of the support member is connected to the annular flange portion, and the other end of the support member extends toward the center of the annular flange portion. There are multiple support members, which are evenly spaced along the circumferential direction of the annular flange portion. The other end of the multiple support members is used to install the fan.

8. The air guide shroud as described in claim 1, characterized in that, The first connecting part is a square structure, and an installation groove is provided at the corner of the square structure. The installation groove is used to hold the pipe of the condenser.

9. The air guide shroud as described in claim 1, characterized in that, The ratio of the area of ​​the circular inner cavity to the area of ​​the square inner cavity is greater than 0.5 and less than 1.

10. A refrigerator, characterized in that, The refrigerator includes a condenser, a fan, and an air guide shroud as described in any one of claims 1-9, wherein the condenser is installed at a first connecting portion of the air guide shroud, and the fan is installed at a second connecting portion of the air guide shroud.

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