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CN-122024681-A - Flow guiding and sound absorbing assembly and range hood with same

CN122024681ACN 122024681 ACN122024681 ACN 122024681ACN-122024681-A

Abstract

The invention discloses a diversion sound-absorbing component and a range hood using the same, wherein the diversion sound-absorbing component comprises a diversion piece, a first baffle and a second baffle, wherein the diversion piece comprises a hollow diversion main body, and noise reduction holes are formed in the diversion main body; the sound-absorbing assembly comprises a guide main body, sound-absorbing cotton and a folding strip, wherein the sound-absorbing cotton is arranged on the periphery of the guide main body, the guide sound-absorbing assembly further comprises a mounting structure for fixing a guide piece and the sound-absorbing cotton, the mounting structure comprises a slot and a folding strip, the slot is formed on the sound-absorbing cotton, and the folding strip is formed on the guide main body and penetrates through the slot to be fixed.

Inventors

  • HUANG RUIYI

Assignees

  • 宁波方太厨具有限公司

Dates

Publication Date
20260512
Application Date
20260107

Claims (11)

  1. 1. A flow directing sound absorbing assembly comprising: The flow guiding piece (15) comprises a hollow flow guiding main body (152), a noise reduction hole (151) is formed in the flow guiding main body (152), and The sound absorbing cotton (16) is arranged on the periphery of the diversion main body (152); the method is characterized in that: the flow guiding and sound absorbing assembly further comprises a mounting structure for fixing the flow guiding piece (15) and the sound absorbing cotton (16), and the mounting structure comprises: a slot (161) arranged on the sound-absorbing cotton (16), and And a folded strip (153) formed on the guide body (152), the folded strip (153) being fixed through the slot (161).
  2. 2. The assembly of claim 1, wherein the plurality of folding bars (153) is two, the plurality of slots (161) is three arranged at intervals along the circumferential direction of the sound-absorbing cotton (16), and each folding bar (153) in each group is inserted into the slot (161) located in the middle along the circumferential direction from the outer surface of the sound-absorbing cotton (16) away from the guide body (152) after passing through the slot (161) on the corresponding side.
  3. 3. The sound absorbing assembly of claim 2, wherein each set of two folds (153) are disposed opposite each other along a circumferential direction of the guide body (152), each fold (153) including a first portion (1531) connected to the guide body (152), a second portion (1532) connected to the first portion (1531) and bendable with respect to the first portion (1531), a third portion (1533) connected to the second portion (1532) and bendable with respect to the second portion (1532), and a fourth portion (1534) connected to the third portion (1533) and bendable with respect to the third portion (1533), the second portion (1532) passing through the respective side slot (161), the third portion (1533) being located on an outer surface of the sound absorbing cotton (16), the fourth portion (1534) being inserted into the slot (161) located circumferentially in the middle.
  4. 4. A sound-absorbing assembly according to claim 3, wherein the two folds (153) of each group are juxtaposed in the axial direction of the flow-guiding body (152).
  5. 5. The sound absorbing assembly of claim 4, wherein a fifth portion (1537) is provided on the fourth portion (1534) of each of the folded strips (153) in each group, the fifth portion (1537) extending from the fourth portion (1534) toward one side of the other folded strip (153) in a direction away from the fourth portion (1534) along the axial direction of the guide body (152), whereby the fifth portions (1537) of the two folded strips (153) abut in the circumferential direction of the guide body (152).
  6. 6. The assembly of claim 5, wherein the fifth portion (1537) is disposed in the relief groove (1536) prior to bending the portions of the folded strip (153).
  7. 7. The sound-absorbing assembly of claim 3, wherein each of the folded strips (153) in each set is trapezoid, and the two folded strips (153) are partially overlapped in the axial direction of the guide main body (152) so that the fourth portions (1534) of the two folded strips (153) are abutted along the circumferential direction of the guide main body (152).
  8. 8. The assembly of claim 3 to 7, wherein a fold line (1535) is formed at the junction of two adjacent portions of each of the strips (153).
  9. 9. A range hood, characterized in that a flow guiding and sound absorbing assembly according to any one of claims 1 to 8 is applied.
  10. 10. The range hood according to claim 9, comprising a smoke collecting box (1) and a fan (2) arranged in the smoke collecting box (1), wherein the front surface of the smoke collecting box (1) is provided with a main smoke inlet (13), the fan (2) is provided with a first air inlet (21) facing the front side, and the flow guide piece (15) is arranged between the main smoke inlet (13) and the first air inlet (21).
  11. 11. The range hood according to claim 10, wherein the fan (2) further comprises a second air inlet (22) facing the rear side, the periphery of the main smoke inlet (13) is provided with a secondary smoke inlet (14), and the secondary smoke inlet (14) is in fluid communication with the second air inlet (22).

Description

Flow guiding and sound absorbing assembly and range hood with same Technical Field The invention relates to a noise reduction technology, in particular to a diversion sound-absorbing component and a range hood using the same. Background The kitchen ventilator is used as an indispensable kitchen appliance of every family, and has the functions of sucking oil smoke from an air inlet through an impeller rotating at a high speed in a volute, filtering the oil smoke by the impeller, and discharging the filtered oil smoke from an air outlet so as to finish the purification work of kitchen air. Some existing ring-suction type range hoods are favored by partial consumers due to the unique appearance of the ring-shaped air inlet and the concentrated smoke gathering effect. In the annular range hood with various forms, the annular range hood with the lower fan has the advantages of small volume, low cost and the like. However, the lower fan makes the relative position of the main noise source of the range hood and the human ear be closer, and the using noise is larger. In order to reduce the noise of the lower fan ring-type range hood, a mode of arranging a guide piece can be adopted generally, sound absorbing cotton is arranged on the guide piece, the range hood comprises a range hood main body, a smoke collecting hood arranged on the front side of the range hood main body, an air inlet arranged on the smoke collecting hood and a fan for sucking oil smoke, a guide assembly is arranged at the air inlet and comprises an air deflector and a guide cover, the guide cover is arranged on one side of the air deflector, facing the range hood main body, and sound absorbing cotton is filled in the guide cover. The sound-absorbing cotton is additionally arranged on the air guide sleeve, so that although the sound-absorbing cotton is an effective noise-reducing scheme, after the sound-absorbing cotton is additionally arranged, the sound-absorbing cotton needs to be fixed, the displacement of the sound-absorbing cotton is avoided, and the noise-reducing effect is lost. In general, there are two main ways of fixing sound absorbing cotton in a range hood, one is to place the sound absorbing cotton at a narrow position (such as a volute tongue position of a fan) of a range hood structure, and the other is to manufacture a narrow limit space by utilizing a sound absorbing box and other structures. Because the position that the kuppe is located is comparatively broad, does not possess natural spacing slit, especially when needs to set up the sound cotton in the kuppe outside, need to inhale the sound box like structure and fix it. In addition, the fixing surfaces of the sound-absorbing cotton and the air guide cover are always required to be connected through rivets, screws and the like, so that the air guide cover is deformed under the action of pressure, the space volume of the sound-absorbing box and the space required by the connecting part are increased, the coverage rate of the sound-absorbing cotton on the air guide piece is reduced, and the noise reduction effect is poor. Therefore, further improvements are still needed. Disclosure of Invention The first technical problem to be solved by the invention is to provide a diversion and sound absorption assembly for realizing low-cost fixed installation of a diversion piece and sound absorption cotton aiming at the defects existing in the prior art. The second technical problem to be solved by the invention is to provide a range hood with the diversion sound-absorbing component. The technical scheme adopted by the invention for solving the first technical problem is that the diversion sound-absorbing component comprises: the flow guiding piece comprises a hollow flow guiding main body, a noise reduction hole and a flow guiding groove, wherein the flow guiding main body is provided with a noise reduction hole and a noise reduction hole The sound-absorbing cotton is arranged on the periphery of the diversion main body; the method is characterized in that: The water conservancy diversion is inhaled subassembly and is inhaled cotton fixed mounting structure is inhaled still including being used for with water conservancy diversion piece and inhaling, mounting structure includes: A slot arranged on the sound-absorbing cotton, and The folding strip is formed on the diversion main body and penetrates through the slot to be fixed. The installation of the guide piece and the sound-absorbing cotton is realized in a mode of inserting and self-locking the slot and the folding strip, the fixing surface between the guide piece and the sound-absorbing cotton is not deformed under pressure, so that the guide piece is more suitable for the guide piece with large curvature, the space occupied by the sound-absorbing cotton is small in the mode of inserting the slot, the coverage rate of the sound-absorbing cotton is high, the noise reduction effect is better, the installation is realized by utilizing