CN220769788U - Through-flow air duct volute tongue structure, air conditioner indoor unit and air conditioner - Google Patents

Abstract

A through-flow air duct volute tongue structure relates to the technical field of air conditioners, and comprises: the tongue root is arranged far away from the through-flow air duct along the tangential direction of the fan positioned in the through-flow air duct; the diversion section is fixedly connected with the tongue root; the noise removing assembly comprises a plurality of bulges which are uniformly distributed on the side wall of the tongue root far away from the flow guiding section along the axial direction of the fan, and the adjacent two bulges have height difference; the height difference is formed among the protrusions, so that air flow enters the fan in batches, a certain time difference exists, the strength of the air flow can be reduced, and the disturbance of the air flow to the fan is reduced; the noise generated by the fan at a low rotating speed can be reduced, and the noise generated by the fan at a high rotating speed is not sharp; the air quantity change can be considered, and the performance of the air conditioner is ensured; meanwhile, the volute tongue structure is simple in overall structure and easy to process, so that the overall structure is high in performance characteristic consistency.

Description

Through-flow air duct volute tongue structure, air conditioner indoor unit and air conditioner

Technical Field

The utility model relates to the technical field of air conditioners, in particular to a through-flow air duct volute tongue structure, an air conditioner indoor unit and an air conditioner.

Background

As shown in fig. 1, the existing split-type indoor unit of an air conditioner generally includes a volute 1, a volute tongue and a fan 2, wherein a through-flow air duct is formed between the volute 1 and the volute tongue, the fan 2 is rotatably installed in the air duct, wherein the fan 2 includes a plurality of air outlet sections, and two adjacent air outlet sections are separated by a partition plate, during the operation of the indoor unit, the fan 2 rotates to enable the airflow to impact the volute tongue towards the side wall of the fan 2, at this time, a part of airflow can flow along the side wall of the volute tongue and be blown out from an air outlet, and the other part of airflow can be folded back into the through-flow air duct, so that the airflow returned into the through-flow air duct easily disturbs the rotation of the fan 2, thereby generating abnormal sound.

In the Chinese patent with the publication number of CN211177098U, an air conditioner indoor unit and an air conditioner are disclosed, wherein a plurality of tooth protrusions are arranged on a volute tongue, and the heights, the shapes, the widths and the lengths of the tooth protrusions are different, so that the air flow is different in the axial direction of a wind wheel, and the different air flow can break resonance, thereby being beneficial to eliminating howling and improving sound quality. However, the patent only considers that the convex structural parameters are changed on the volute tongue, the structural characteristics are complex, and the machined bottom frame is easy to have inconsistent structural characterization.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model provides a through-flow air duct volute tongue structure, an air conditioner indoor unit and an air conditioner, which solve the problems of complex volute tongue structure and high processing difficulty existing in the prior art.

A through-flow air duct volute tongue structure comprising:

the tongue root is arranged far away from the through-flow air duct along the tangential direction of the fan positioned in the through-flow air duct;

the diversion section is fixedly connected with the tongue root; and

the noise removing assembly comprises a plurality of protrusions which are uniformly distributed on the side wall of the tongue root far away from the flow guiding section along the axial direction of the fan, and the height difference is formed between every two adjacent protrusions.

Compared with the prior art, the utility model has the following beneficial effects: because the height difference exists among the bulges, one part of air flow firstly enters the fan along the lower part among the bulges, the other part of air flow continuously moves along the tongue root and then enters the fan along the higher part of the bulges, and in this way, the air flow enters the fan in batches, a certain time difference exists, and the intensity of the air flow can be reduced, so that the disturbance of the air flow to the fan is reduced; the noise generated by the fan at a low rotating speed can be reduced, and the noise generated by the fan at a high rotating speed is not sharp; when the air quantity test is carried out, the air quantity is reduced at the higher positions of the bulges, and the air quantity is increased at the lower positions of the bulges, so that the bulges are designed to be of a high structure, the air quantity change can be considered, and the performance of the air conditioner is ensured; meanwhile, the volute tongue structure is simple in overall structure and easy to process, so that the overall structure is high in performance characteristic consistency.

Preferably, one of the protrusions comprises inclined teeth fixedly arranged on the side wall of the tongue root far away from the diversion section, and the inclined teeth are arranged in one-to-one correspondence with the air outlet sections of the fan.

Preferably, the length w of each helical tooth has a value range of not less than 65mm and not more than 620mm, and the height b of each helical tooth has a value range of not less than 3mm and not more than 10mm.

Preferably, each protrusion comprises an arc protrusion fixedly installed on the side wall of the tongue root far away from the flow guiding section, a plurality of arc protrusions are assembled to form a wavy structure, and the highest points of the arc protrusions are in one-to-one correspondence to the partition plates between the adjacent two air outlet sections of the fan.

Preferably, the range of the height c of each arc-shaped bulge is 3 mm-10 mm, and the range of the width e of each arc-shaped bulge is 65 mm-620 mm.

Preferably, each protrusion comprises a rectangular protruding block fixedly arranged on the side wall of the tongue root far away from the flow guiding section, and the center positions of the rectangular protruding blocks are in one-to-one correspondence to the partition plates between the adjacent two air outlet sections of the fan.

Preferably, the length a of each rectangular bump has a value range of 10 mm-30 mm, and the height d of each rectangular bump has a value range of 3 mm-10 mm.

The utility model also provides an air conditioner indoor unit comprising the volute tongue structure.

The utility model also provides an air conditioner comprising the air conditioner indoor unit.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.

Drawings

Fig. 1 is a sectional view of a conventional indoor unit of an air conditioner.

Fig. 2 is a schematic structural diagram of an embodiment of the present utility model.

Fig. 3 is a front view of fig. 2.

Fig. 4 is a schematic structural view of a second embodiment of the present utility model.

Fig. 5 is a front view of fig. 4.

Fig. 6 is a schematic structural diagram of a third embodiment of the present utility model.

Fig. 7 is a front view of fig. 6.

The reference numerals in the figures are as follows: 1. a volute; 2. a fan; 3. tongue root; 31. a protrusion; 4. and a diversion section.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the present utility model more clear and easy to understand, the present utility model is further described below with reference to the accompanying drawings and the detailed description:

as shown in fig. 2-7, an embodiment of the present utility model provides a through-flow air duct volute tongue structure, including: a tongue root 3 disposed apart from the through-flow duct in a tangential direction of the fan 2 located in the through-flow duct; the diversion section 4 is fixedly connected with the tongue root 3; and the noise removing assembly comprises a plurality of protrusions 31 which are uniformly distributed on the side wall of the tongue root 3 far away from the flow guiding section 4 along the axial direction of the fan 2, and the height difference is formed between every two adjacent protrusions 31.

So that the protrusions 31 can change the flow mode of the air flow generated by the air outlet sections, thereby reducing noise generated when the air flow is returned to the fan 2.

As shown in fig. 2-3, according to another embodiment of the present utility model, the through-flow air duct volute tongue structure is further optimized for the protrusions 31 included therein, wherein one of the protrusions 31 includes helical teeth fixedly mounted on the side wall of the tongue base 3 far away from the guiding section 4, and a plurality of helical teeth are arranged in a one-to-one correspondence with a plurality of air outlet sections of the fan 2; preferably, the length w of each helical tooth has a value range of not less than 65mm and not more than 620mm, and the height b of each helical tooth has a value range of not less than 3mm and not more than 10mm.

As shown in fig. 4-5, according to another embodiment of the present utility model, the through-flow air duct volute tongue structure is further optimized for the protrusions 31 included in the through-flow air duct volute tongue structure, each protrusion 31 includes an arc-shaped protrusion 31 fixedly installed on the side wall of the tongue base 3 far away from the flow guiding section 4, a plurality of arc-shaped protrusions 31 are assembled to form a wave-shaped structure, and the highest points of the arc-shaped protrusions 31 are arranged in a one-to-one correspondence manner to be opposite to the partition plates between the adjacent two air outlet sections of the fan 2; preferably, the height c of each arc-shaped protrusion 31 has a value range of 3 mm-10 mm, and the width e of each arc-shaped protrusion 31 has a value range of 65 mm-620 mm.

As shown in fig. 6-7, according to another embodiment of the present utility model, the through-flow air duct volute tongue structure is further optimized for the protrusions 31 included in the through-flow air duct volute tongue structure, each protrusion 31 includes a rectangular protruding block fixedly installed on the side wall of the tongue base 3 far away from the guiding section 4, and the central positions of the rectangular protruding blocks are arranged opposite to the partition plate between the adjacent two air outlet sections of the fan 2 in a one-to-one correspondence manner; preferably, the length a of each rectangular bump has a value range of 10 mm-30 mm, and the height d of each rectangular bump has a value range of 3 mm-10 mm.

Wherein set up protruding 31 into helical tooth, arc protruding 31 or rectangle lug to the air current that produces every air-out section all produces same effect, makes the air current that returns back to in the fan 2 exist time difference, thereby weakens the disturbance dynamics of air current to fan 2, guarantees that fan 2 silence is pure when low-speed operation, and still makes fan 2 when high-speed operation, does not have sharp whistle and call the sound production, and can also compensate the loss of amount of wind each other.

The utility model also provides an air conditioner indoor unit, which comprises the volute tongue structure and can improve the tone quality of the air conditioner indoor unit.

The utility model also provides an air conditioner comprising the air conditioner indoor unit.

The application principle of the utility model is as follows: according to the utility model, the side wall of the tongue root 3, which is far away from the flow guiding section 4, is fixedly provided with a plurality of uniformly arranged helical teeth, arc-shaped bulges 31 or rectangular convex blocks along the axial direction of the fan 2, and the helical teeth, the arc-shaped bulges 31 or the rectangular convex blocks are arranged in one-to-one correspondence with a plurality of air outlet sections or the partition plates among the air outlet sections, so that the phenomenon that noise is generated by the air flow disturbance fan 2 can be effectively improved, and meanwhile, the air quantity can be compensated, thereby ensuring the performance of an air conditioner.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.

Claims (9)

1. The utility model provides a through-flow wind channel volute tongue structure which characterized in that includes:

the tongue root (3) is arranged far away from the through-flow air duct along the tangential direction of the fan (2) positioned in the through-flow air duct;

the diversion section (4) is fixedly connected with the tongue root (3); and

the noise removing assembly comprises a plurality of protrusions (31) which are uniformly distributed on the side wall of the tongue base (3) far away from the diversion section (4) along the axial direction of the fan (2), and the height difference is formed between every two adjacent protrusions (31).

2. The through-flow air duct volute tongue structure according to claim 1, wherein each protrusion (31) comprises inclined teeth fixedly installed on the side wall of the tongue base (3) far away from the flow guiding section (4), and a plurality of inclined teeth are arranged opposite to a plurality of air outlet sections of the fan (2) in a one-to-one correspondence manner.

3. The through-flow air duct volute tongue structure of claim 2, wherein the length w of each helical tooth has a value range of 65 mm-620 mm, and the height b of each helical tooth has a value range of 3 mm-10 mm.

4. The through-flow air duct volute tongue structure according to claim 1, wherein each protrusion (31) comprises an arc-shaped protrusion (31) fixedly installed on the side wall of the tongue base (3) far away from the flow guiding section (4), the arc-shaped protrusions (31) are assembled to form a wavy structure, and the highest points of the arc-shaped protrusions (31) are in one-to-one correspondence and are arranged opposite to a partition plate between the adjacent two air outlet sections of the fan (2).

5. The through-flow air duct volute tongue structure according to claim 4, wherein the height c of each arc-shaped protrusion (31) is equal to or less than 3mm and equal to or less than 10mm, and the width e of each arc-shaped protrusion (31) is equal to or less than 65mm and equal to or less than 620mm.

6. The through-flow air duct volute tongue structure according to claim 1, wherein each protrusion (31) comprises a rectangular protruding block fixedly installed on the side wall of the tongue base (3) far away from the flow guiding section (4), and the center positions of the rectangular protruding blocks are in one-to-one correspondence to the partition plates between the adjacent two air outlet sections of the fan (2).

7. The through-flow air duct volute tongue structure of claim 6, wherein the length a of each rectangular protruding block is equal to or less than 10mm and equal to or less than 30mm, and the height d of each rectangular protruding block is equal to or less than 3mm and equal to or less than 10mm.

8. An air conditioning indoor unit comprising a volute tongue structure according to any one of claims 1-7.

9. An air conditioner comprising the air conditioner indoor unit according to claim 8.