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CN-224215659-U - Flow guiding shell, gas conveying assembly and refrigerator

CN224215659UCN 224215659 UCN224215659 UCN 224215659UCN-224215659-U

Abstract

The utility model discloses a flow guiding shell, a gas conveying assembly and a refrigerator. The shell body is provided with a mounting cavity for mounting the centrifugal fan and at least two airflow guide grooves arranged at intervals along the circumferential direction of the mounting cavity, the bottom of the mounting cavity is provided with an air inlet communicated with the airflow guide grooves, and the at least two airflow guide grooves comprise first guide grooves for conveying gas to the temperature changing cavity. The drainage piece is arranged between the mounting cavity and the first guide groove and is used for guiding gas to the first guide groove. The diversion shell can effectively reduce or avoid generating vortex, improve the air output of the first guide groove and is beneficial to ensuring the required cold quantity of the variable-temperature cavity through the optimized structure.

Inventors

  • ZHANG WEI

Assignees

  • 小米科技(武汉)有限公司
  • 小米智能家电(武汉)有限公司
  • 北京小米移动软件有限公司

Dates

Publication Date
20260508
Application Date
20250521

Claims (10)

  1. 1. A deflector housing, comprising: The shell body is provided with a mounting cavity for mounting the centrifugal fan and at least two airflow guide grooves arranged at intervals along the circumferential direction of the mounting cavity, the bottom of the mounting cavity is provided with an air inlet communicated with the airflow guide grooves, the at least two airflow guide grooves comprise first guide grooves for conveying gas to the temperature changing cavity, and the at least two airflow guide grooves are respectively provided with a first guide groove for conveying gas to the temperature changing cavity and a second guide groove for conveying gas to the temperature changing cavity The drainage piece is arranged between the installation cavity and the first guide groove and is used for guiding gas to the first guide groove.
  2. 2. The flow guiding shell according to claim 1, wherein the shell body comprises a plate body, a first protruding rib and a second protruding rib, the installation cavity is formed in the plate body, the first protruding rib and the second protruding rib are arranged in the plate body to form the first guide groove, and the flow guiding piece is fixedly connected with the first protruding rib and is arranged at intervals with the second protruding rib.
  3. 3. The flow directing housing of claim 2 wherein the flow directing member is integrally formed with the first bead; And/or an obtuse angle is formed between the drainage piece and the first convex rib; And/or, the first guide groove is further provided with a first air outlet which is arranged at intervals with the air inlet, and the first air outlet is arranged close to the first convex rib.
  4. 4. A deflector housing as claimed in claim 3, wherein the deflector and the second bead are disposed in spaced relation between the first air outlet and the air inlet.
  5. 5. The baffle housing of any one of claims 1 to 4, wherein at least two of the airflow channels further comprise a second channel spaced from the first channel along a first direction; the flow guiding shell further comprises a backflow preventing piece, the backflow preventing piece is fixedly connected with the flow guiding piece, is arranged between the mounting cavity and the second guide groove and is used for preventing gas flowing to the first guide groove from flowing back to the second guide groove.
  6. 6. The baffle housing of claim 5, wherein the backflow prevention element is connected to the baffle at an acute angle; and/or, the backflow prevention piece is matched with the drainage piece to form a volute tongue structure; and/or the backflow prevention piece is arc-shaped and concavely arranged in a direction away from the installation cavity.
  7. 7. The baffle housing of claim 5 wherein at least two of said airflow channels further comprise a third channel spaced from said second channel along a second direction, said first direction intersecting said second direction.
  8. 8. The baffle housing of claim 1, wherein the housing body comprises a plate provided with the mounting cavity; the air flow guide groove is concavely formed through the plate body, or the shell body further comprises a convex rib for forming the air flow guide groove, and the convex rib is fixedly arranged on the plate body.
  9. 9. The gas conveying assembly is characterized by comprising a centrifugal fan, a fluid channel cover plate and a guide shell body according to any one of claims 1-8, wherein the centrifugal fan is arranged in the installation cavity, the air inlet end of the centrifugal fan faces the air inlet, the fluid channel cover plate is connected with the guide shell body to cover the airflow guide groove to form a fluid channel, and the fluid channel cover plate is provided with a second air outlet communicated with the freezing bin.
  10. 10. The refrigerator is characterized by comprising a refrigerator body assembly, an evaporator and the gas conveying assembly according to claim 9, wherein the refrigerator body assembly is provided with a freezing bin and a refrigerating bin provided with a temperature changing cavity, the gas conveying assembly is fixedly arranged in the freezing bin and divides the freezing bin into a refrigerating cavity and a freezing cavity, the evaporator is arranged in the refrigerating cavity, the air inlet is communicated with the refrigerating cavity, the first guide groove is communicated with the temperature changing cavity, and the second air outlet is communicated with the freezing cavity.

Description

Flow guiding shell, gas conveying assembly and refrigerator Technical Field The disclosure relates to the technical field of electrical appliances, in particular to a diversion shell, a gas conveying assembly and a refrigerator. Background With the development of social economy and the improvement of living standard of people, the refrigerator becomes an indispensable living electric appliance in daily life of people. The refrigerator maintains the inside of a storage chamber thereof in a low temperature state by using a refrigerating effect, thereby better preserving foods. In the related art, a gas delivery assembly of a refrigerator in a freezing chamber delivers gas in the freezing chamber to the freezing chamber and a temperature changing chamber to maintain the required cold energy of each chamber. However, due to the structural defect of the diversion shell, vortex exists in the process that the fan is conveyed to the temperature changing cavity through the fluid channel, so that the required cold quantity of the temperature changing cavity is not guaranteed. Disclosure of utility model In view of this, the present disclosure provides a flow guiding housing, a gas delivery assembly, and a refrigerator. The diversion shell can effectively reduce or avoid generating vortex, improve the air output of the first guide groove and is beneficial to ensuring the required cold quantity of the variable-temperature cavity through the optimized structure. Specifically, the present disclosure is realized by the following technical solutions. According to a first aspect of embodiments of the present disclosure, there is provided a flow guiding housing comprising a housing body and a flow guiding member. The shell body is provided with a mounting cavity for mounting the centrifugal fan and at least two airflow guide grooves arranged at intervals along the circumferential direction of the mounting cavity, the bottom of the mounting cavity is provided with an air inlet communicated with the airflow guide grooves, and the at least two airflow guide grooves comprise first guide grooves for conveying gas to the temperature changing cavity. The drainage piece is arranged between the mounting cavity and the first guide groove and is used for guiding gas to the first guide groove. The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects: When the guide shell is applied to a refrigerator, the air inlet of the guide shell is communicated with the refrigerating cavity, the centrifugal fan is arranged in the mounting cavity, the air inlet end of the centrifugal fan is arranged towards the air inlet, and the first guide groove is communicated with the temperature changing cavity. When the refrigerator is in operation, the centrifugal fan works and conveys low-temperature gas to the temperature changing cavity through the first guide groove. In this process, the drainage piece sets up between installation cavity and first guide slot, can reduce or avoid producing the vortex with low temperature gas drainage to first guide slot through the drainage piece. The centrifugal fans with the same specification can improve the air output of low-temperature gas in the first guide groove under the same operation power, thereby meeting the air output requirement of air supply to the temperature-changing cavity and meeting the air output requirement of air supply to the freezing cavity. The technical scheme of the present disclosure is further described below. In one embodiment, the housing body includes a plate body, a first rib and a second rib, and the mounting cavity is disposed on the plate body. The first convex rib and the second convex rib are arranged on the plate body to form a first guide groove. The drainage piece is fixedly connected with the first convex rib and is arranged at intervals with the second convex rib. In one embodiment, the drainage member is integrally formed with the first bead. And/or an obtuse angle is formed between the drainage piece and the first convex rib. And/or the first guide groove is also provided with a first air outlet which is arranged at intervals with the air inlet, and the first air outlet is arranged close to the first convex rib. In one embodiment, the drainage piece and the second ribs are arranged between the first air outlet and the air inlet at intervals. In one embodiment, the at least two air flow guiding grooves further comprise a second guiding groove which is arranged at intervals along the first direction from the first guiding groove. The flow guiding shell further comprises a backflow preventing piece, the backflow preventing piece is fixedly connected with the flow guiding piece and arranged between the mounting cavity and the second guide groove, and the backflow preventing piece is used for preventing gas flowing to the first guide groove from flowing back to the second guide groove. In one embodiment, the backflow prevention