A volute tongue device and an air conditioner indoor unit including the volute tongue device

Abstract

The invention discloses a worm tongue device and an air conditioner indoor unit comprising the worm tongue device. The worm tongue device comprises a first air guide part and a second air guide part with different lengths, wherein the first air guide part and the second air guide part are connected to form a bent structure; and connecting structures for connecting with a bottom shell of the air conditioner indoor unit are respectively arranged on the inner side surfaces of the first air guide part and the second air guide part. Through the settings, the worm tongue device can adjust a worm tongue gap according to different diameter sizes of cross flow blades to optimize and promote the fan system performance.

Description

technical field [0001] The invention relates to the technical field of air conditioner indoor units, in particular to a volute tongue device and an air conditioner indoor unit including the volute tongue device. Background technique [0002] A volute tongue device is installed in the casing of the indoor unit of the split type air conditioner, please refer to figure 1 , figure 1 It is a schematic diagram of the volute tongue device in the prior art. The volute tongue device includes a connection part 1 connected to the bottom plate of the casing and an air guide part 2 forming a bending structure with the connection part 1. The air guide surface of the air guide part 2 and the cross-flow wind There is a certain gap between the leaves 3 to form an air guiding channel. [0003] In the prior art, since the installation position and installation method of the volute tongue device are fixed, when the cross-flow fan 3 with different diameters is assembled in the same casing, the...

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Problems solved by technology

[0003] In the prior art, since the installation position and installation method of the volute tongue device are fixed, when the cross-flow fan 3 with different diameters is assembled in the same casing, the gap between the cross-flow fan 3 and the volute tongue device (called the volute tongue) Clearance) will change, that is, the size of the air guide channel between the cross-flow fan blade 3 and the air guide surface of the volute tongue device will change, which is not conducive to optimizing and improving the performance of the fan

[0004] The volute tongue device has a great influence on the flow field and sound field of the indoor unit of the air conditioner. Therefore, how to solve the technical problems in the prior art that the volute tongue gap cannot be adjusted and the performance of the fan system cannot be optimized and improved has become a problem for those skilled in the art to solve. important technical issues

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