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Volute tongue structure and air conditioner

A technology of volute tongue and structure adjustment, applied in the direction of heating and ventilation hood/cover, etc., can solve the problems of volute tongue impact noise and pulsation noise, affecting the performance of the air conditioner, increasing the area of ​​eccentric vortex, etc., to improve performance, reduce Eccentric vortex area, area reduction effect

Pending Publication Date: 2020-03-10
NINGBO AUX ELECTRIC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional air conditioner indoor units such as figure 1 As shown, the indoor unit of the air conditioner includes a housing 100, and the fan blade 300 and the volute tongue 210 are arranged inside the housing 100, and the volute tongue 210 is stationary. On the one hand, impact noise and pulsating noise will be generated when the airflow collides with the volute tongue, which will affect the user experience. On the other hand, due to the eccentric vortex characteristics of the cross-flow fan duct and the different application scenarios of the air conditioner, when the low wind speed is used, the eccentric vortex area in the duct is likely to increase, resulting in unstable air flow in the system and effective air outlet. The reduction of airflow directly affects the performance of the air conditioner and makes the user experience worse

Method used

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  • Volute tongue structure and air conditioner
  • Volute tongue structure and air conditioner
  • Volute tongue structure and air conditioner

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Experimental program
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Effect test

Embodiment 1

[0028] See attached figure 2 , the first aspect of the present invention provides a volute tongue structure 200, the volute tongue structure 200 is arranged in the housing 100, the volute tongue structure 200 includes a volute tongue 210, and the volute tongue structure 200 also includes an adjustment structure 230 , the adjusting structure 230 can adaptively adjust the distance between the volute tongue 210 and the internal blade of the housing 100 .

[0029] It should be noted that the self-adaptive adjustment structure 230 automatically adjusts the distance between the volute tongue 210 and the fan blade according to the change of the air duct pressure or fan speed, which is different from the conventional detection feedback control based on pressure or fan speed. The motor drives the movement of the volute tongue 210 through the transmission mechanism.

[0030] Therefore, the present invention adjusts the distance between the volute tongue 210 and the fan blade by settin...

Embodiment 2

[0038] See attached Figure 4 and 5 , the difference from Embodiment 1 is: the telescopic mechanism is a support rod, and the support rod uses gas and liquid as an elastic element of the working medium, which can be a hydraulic support rod or a pneumatic support rod, and the pneumatic support rod is such as Gas Spring.

[0039] Therefore, the present invention adopts the spring 231 or the support rod 232 with prestress. On the one hand, when the air duct pressure is less than the prestress of the telescopic mechanism, the telescopic mechanism will elongate and drive the volute tongue 210 to rotate, reducing the contact between the volute tongue 210 and the telescopic mechanism. The distance between the fan blades reduces the area of ​​the eccentric vortex and improves the air outlet efficiency of the air duct; on the other hand, the prestressed spring 231 or the support rod 232 has a simple structure, easy installation, and low cost.

Embodiment 3

[0041] See attached Figure 5 , the difference from Embodiment 1 and Embodiment 2 is: the volute tongue structure 200 also includes a pressure detection component 233 and / or a speed detection component (not shown in the figure), and the pressure detection component 233 is a pressure sensor, so The pressure sensor is located at the end of the volute tongue 210 close to the rotating shaft 220 for detecting the pressure of the air duct; the speed detection component is located at the end of the volute tongue 210 close to the rotating shaft 220 for detecting the Describe the wind speed of the duct.

[0042] The present invention automatically knows the working condition of the air conditioner by setting the pressure detection component 233 and / or the speed detection component in the volute tongue structure 200, and adaptively adjusts the position of the volute tongue 210 based on the detected pressure and / or speed, thereby reducing the eccentric vortex area, improve the air outle...

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Abstract

The invention relates to a volute tongue structure and an air conditioner. The volute tongue structure is arranged in a housing, and comprises a volute tongue and an adjusting structure, wherein the adjusting structure can perform self-adapting adjusting on the distance between the volute tongue and blades in the housing. According to the volute tongue structure disclosed by the invention, the self-adapting adjusting mechanism is arranged to adjust the distance between the volute tongue and the blades, so that on one hand, the area of eccentric vortexes is reduced, the reflux of the air current is reduced, the wind outlet efficiency of a wind channel system is improved, and the performance of the air conditioner is improved; and on the other hand, the impact noise generated when the air current impacts the volute tongue is alleviated, and the comfort of the user is promoted.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a volute tongue structure and an air conditioner. Background technique [0002] At present, the air conditioner indoor unit and hanging unit mostly use cross-flow fan ducts and fan blades. During the operation of the cross-flow fan blades, due to the centrifugal force, most of the air flow flows out of the air conditioner inner unit, and part of the air flow collides with the volute tongue to generate diversion. The gap between the flow fan and the volute tongue returns to the cross-flow fan vane, forming an eccentric vortex. [0003] Traditional air conditioner indoor units such as figure 1 As shown, the indoor unit of the air conditioner includes a housing 100, and the fan blade 300 and the volute tongue 210 are arranged inside the housing 100, and the volute tongue 210 is stationary. On the one hand, impact noise and pulsating noise will be generated when the airflow...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F13/20
CPCF24F13/20
Inventor 张伟捷王天垚鲁旻蒋力
Owner NINGBO AUX ELECTRIC
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