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CN-122014674-A - Volute tongue spiral case molded line structure and air conditioner in air conditioner

CN122014674ACN 122014674 ACN122014674 ACN 122014674ACN-122014674-A

Abstract

The invention discloses a volute tongue volute molded line structure of an air conditioner indoor unit, which comprises a shell, wherein a volute tongue and a volute are arranged in the shell, gaps are reserved between the volute tongue and the volute to form an air outlet in a surrounding mode, a plurality of first guide ribs are distributed on the volute tongue in a sine and cosine mode along the length direction of the volute tongue and used for integrating air flow flowing through the air outlet, a plurality of second guide ribs are distributed on the volute in a sine and cosine mode along the length direction of the volute, the second guide ribs are used for integrating air flow flowing through the air outlet, and the first guide ribs with the length and the height distributed in a sine and cosine mode are respectively arranged on a first windward side and a first air guide side of the volute tongue, and the second guide ribs with the height and the length distributed in a sine and cosine mode are arranged on the second air guide side of the volute, so that the guide ribs form a non-uniform and ordered distribution mode, the non-uniformity periodicity of the tail air flow of a through fan can be broken, the impact force of the dispersed air flow on the volute tongue and the volute can inhibit sharp noise from a root.

Inventors

  • WU YANZHI

Assignees

  • 四川长虹空调有限公司

Dates

Publication Date
20260512
Application Date
20260316

Claims (10)

  1. 1. The utility model provides an indoor set volute tongue spiral case molded line structure of air conditioner which characterized in that includes: The device comprises a shell (10), wherein a volute tongue (20) and a volute (30) are arranged in the shell (10), and a gap is reserved between the volute tongue (20) and the volute (30) so as to form an air outlet (40) in a surrounding manner; The volute tongue (20) is provided with a plurality of first guide ribs (22) in sine and cosine regular distribution along the length direction, and the plurality of first guide ribs (22) are used for integrating air flow flowing through the air outlet (40); The volute (30) is provided with a plurality of second flow guide ribs (32) in sine and cosine regular distribution along the length direction, and the second flow guide ribs (32) are used for integrating air flow flowing through the air outlet (40).
  2. 2. The volute type line structure of an air conditioner indoor unit according to claim 1, wherein the volute (20) comprises a first windward side (21) and a first air guiding surface (24) which is in bending and smooth transitional connection with the first windward side (21), a plurality of first air guiding ribs (22) are uniformly distributed on the first windward side (21) at intervals, and the tail ends of the first air guiding ribs (22) extend to the first air guiding surface (24).
  3. 3. The volute tongue molded line structure of an air conditioner indoor unit according to claim 2, wherein a plurality of the first diversion ribs (22) are arranged on the first windward side (21) at intervals along the length direction thereof, and are positioned at one end of the plurality of the first diversion ribs (22) on the first windward side (21), and the length dimensions thereof are distributed in a sine-cosine law, wherein diversion trenches (23) for air flow to pass through are formed between any two adjacent groups of the first diversion ribs (22).
  4. 4. The volute tongue molded line structure of an air conditioner indoor unit according to claim 2, wherein a plurality of the first guide ribs (22) are located on the first air guiding surface (24), and the height dimensions of the first guide ribs are regularly distributed in a sine-cosine manner along the length direction of the first air guiding surface (24).
  5. 5. The volute tongue molded line structure of the air conditioner indoor unit according to claim 1, wherein the top width of the first guide ribs (22) is c, the bottom width is d, the top gaps of two adjacent first guide ribs (22) are a, the bottom gaps are b, and the range of values of the parameters is as follows: 2mm≤a≤5mm; 1mm≤b≤4mm; 0mm≤c≤2mm; 1mm≤d≤3mm。
  6. 6. the volute type line structure of the volute tongue of the indoor unit of the air conditioner according to claim 1, wherein a second air guiding surface (31) is arranged on one side of the volute (30) facing the volute tongue (20), a plurality of second air guiding ribs (32) are uniformly distributed on the second air guiding surface (31) at intervals, and arc-shaped grooves (33) for air flow to pass through are formed between any two adjacent groups of second air guiding ribs (32).
  7. 7. The volute tongue molded line structure of an air conditioner indoor unit according to claim 6, wherein a plurality of second guide ribs (32) are located on the second air guiding surface (31), and the height dimensions of the second guide ribs are regularly distributed in a sine-cosine manner along the length direction of the second air guiding surface (31).
  8. 8. The volute tongue molded line structure of an air conditioner indoor unit according to claim 7, wherein each end portion of the plurality of second air guiding ribs (32) extends toward two side edges of the second air guiding surface (31), and the extending lengths of the second air guiding ribs (32) are distributed in a sine-cosine law along the length direction of the second air guiding surface (31).
  9. 9. The volute tongue molded line structure of an air conditioner indoor unit according to claim 7, wherein the bottom gap of the arc-shaped groove (33) is b ', the top gap of the arc-shaped groove (33) is c ', the gap between two adjacent arc-shaped grooves (33) is a ', and the range of values of the parameters is as follows: 2mm≤a’≤5mm; 1mm≤b’≤3mm; 1mm≤c’≤2mm。
  10. 10. An air conditioner characterized by comprising the volute tongue molded line structure of the indoor unit of the air conditioner according to any one of claims 1 to 9.

Description

Volute tongue spiral case molded line structure and air conditioner in air conditioner Technical Field The invention relates to the technical field of air conditioner indoor unit structural design, in particular to an air conditioner indoor unit volute tongue volute molded line structure and an air conditioner. Background Noise is used as a key index for influencing user experience in the running process of an air conditioner, and becomes one of the core concerns of industry competition. According to research, when the air conditioner operates, the pressurized air flow in the cross-flow fan flows to the air outlet under the guidance of the molded lines of the volute and the volute tongue, so that the molded line structural design of the volute and the volute tongue directly influences the air flow state, and further, the noise is obviously influenced. The volute tongue structure of the existing air conditioner generally comprises a volute tongue body, wherein one surface of the volute tongue body facing the center of the volute is a first air guide surface, a plurality of flow guide ribs are arranged on the first air guide surface and distributed at intervals along the length direction of the volute tongue, the flow guide ribs are parallel to the cross section of the volute tongue, flow guide grooves between the flow guide ribs are also parallel to the cross section of the volute tongue, the corresponding volute structure comprises a volute body, and the air inlet end of the volute body and the inner side surface facing the volute tongue are smooth first air guide surfaces. The noise reduction effect of this conventional structure is limited in that when the rotational speed of the cross-flow fan is high, the fan blades form a wake area, resulting in significant non-uniformity in the speed and pressure of the air flow. The uneven airflow can periodically act on the surfaces of the volute tongue and the volute, so that strong pulsating force is generated in the surrounding area of the volute tongue and the volute surface, sharp noise is further caused, and the use experience of a user is seriously reduced. Disclosure of Invention Aiming at the defects existing in the prior art, the invention aims to provide a volute tongue spiral case molded line structure of an air conditioner indoor unit and an air conditioner, so as to solve the problems that in the prior art, the periodicity of wake airflow non-uniformity of a cross flow fan cannot be broken, and sharp noise is caused by airflow pulsation impact due to the fact that a first spiral case smooth air guiding surface and a parallel spiral tongue guiding rib are not broken. The invention adopts the following technical scheme that the volute tongue molded line structure of the air conditioner indoor unit comprises a shell, wherein a volute tongue and a volute are arranged in the shell, and a gap is reserved between the volute tongue and the volute so as to form an air outlet in a surrounding way; The volute tongue is provided with a plurality of first flow guide ribs in a sine and cosine rule along the length direction, and the first flow guide ribs are used for integrating air flow flowing through the air outlet; the volute is provided with a plurality of second flow guide ribs in a sine and cosine rule along the length direction of the volute, and the second flow guide ribs are used for integrating air flow flowing through the air outlet. Preferably, the volute tongue comprises a first windward side and a first wind guide surface which is bent and smoothly transitionally connected with the first windward side, a plurality of first guide ribs are uniformly distributed on the first windward side at intervals, and the tail ends of the plurality of first guide ribs extend to the first wind guide surface. Preferably, the plurality of first guide ribs are arranged at intervals on the first windward side along the length direction of the first windward side, one ends of the plurality of first guide ribs are positioned on the first windward side, the length dimensions of the plurality of first guide ribs are in sine and cosine regular distribution, and guide grooves for air flow to pass through are formed between any two adjacent groups of first guide ribs. Preferably, the height dimension of the plurality of first guide ribs positioned on the first air guiding surface is distributed in sine and cosine form along the length direction of the first air guiding surface. Preferably, the top width of the first guide ribs is c, the bottom width of the first guide ribs is d, the top gaps of two adjacent first guide ribs are a, the bottom gaps are b, and the value ranges of all parameters are as follows: 2mm≤a≤5mm; 1mm≤b≤4mm; 0mm≤c≤2mm; 1mm≤d≤3mm。 preferably, one side of the volute facing the volute tongue is a second air guide surface, a plurality of second guide ribs are uniformly distributed on the second air guide surface at intervals, and an arc-shaped groove for air fl