CN112628202A

CN112628202A - Volute tongue structure, fan structure and air conditioner

Info

Publication number: CN112628202A
Application number: CN202011435777.2A
Authority: CN
Inventors: 陈红光; 潘龙腾; 王宏望; 何振健; 韩冲; 张瀚中
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-04-09

Abstract

The invention provides a volute tongue structure, a fan structure and an air conditioner, wherein the volute tongue structure comprises: the volute tongue part is rotatably arranged in the volute component; the sealing part is arranged at the end part of the snail tongue part; the sealing part is provided with a sealing groove, and the notch of the sealing groove is arranged towards the volute component, so that the airflow between the volute tongue part and the volute component flows out through the sealing groove. The volute tongue structure solves the problem that air leaks from a gap between a volute and a volute of a fan of an air conditioner in the prior art.

Description

Volute tongue structure, fan structure and air conditioner

Technical Field

The invention relates to the field of air conditioners, in particular to a volute tongue structure, a fan structure and an air conditioner.

Background

At present, the air conditioner with upper and lower air outlets can realize bath type refrigeration and carpet type heating, and has good comfort. When the air conditioner with the upper and lower reversible air outlets can realize refrigeration, the air is blown from top to bottom, and the air is blown from bottom to top during heating, so that the air conditioner has a great development prospect. The upper and lower reversible air outlet is realized by designing a rotary volute tongue structure and changing the position of the volute tongue by rotating the volute tongue, so that the upper and lower air outlet directions are changed.

However, as the volute tongue has a movement gap in the rotation process, a gap is formed between the volute tongue and the front and back surfaces of the volute casing, and a movement gap is formed between the volute tongue and the upper and lower peripheries of the volute casing, air leakage and air channeling of the air duct are easily caused, and thus, the air volume and the noise are greatly influenced.

Disclosure of Invention

The invention mainly aims to provide a volute tongue structure, a fan structure and an air conditioner, and aims to solve the problem of air leakage in a gap between a volute tongue and a volute of a fan of the air conditioner in the prior art.

In order to achieve the above object, according to a first aspect of the present invention, there is provided a volute tongue structure comprising: the volute tongue part is rotatably arranged in the volute component; the sealing part is arranged at the end part of the snail tongue part; the sealing part is provided with a sealing groove, and the notch of the sealing groove is arranged towards the volute component, so that the airflow between the volute tongue part and the volute component flows out through the sealing groove.

Further, the sealing groove is used for enabling at least part of the wind shielding bulge of the volute component to extend into the sealing groove from the notch of the sealing groove, so that an airflow circulation gap is formed between the sealing groove and the volute component.

Furthermore, the sealing part is provided with a plurality of sealing grooves which are arranged at intervals along the interval direction of two groove side walls of the sealing grooves, so that a plurality of wind shielding bulges of the volute component correspondingly extend into the plurality of sealing grooves one by one.

Further, the sealing part comprises a first rib and a second rib which are arranged oppositely, the first rib and the second rib are fixed on the volute tongue part and form a sealing groove, and the first rib is arranged on the outer side of the second rib.

Further, a first roller for contacting with the volute component is arranged on the volute tongue part, and the rotation axis of the first roller is parallel to the axis of the volute tongue part; an avoiding groove for avoiding the first roller is formed in the first rib.

Further, a second roller for contacting with the volute component is arranged on the volute tongue part, and the rotation axis of the second roller is perpendicular to the axis of the volute tongue part; the first ribs are provided with installation portions with installation cavities, the second rollers are rotatably installed on the installation portions, and part of wheel bodies of the second rollers are located in the installation cavities.

Further, the volute tongue structure also comprises: and the buffer component is arranged at the pressurization starting end of the volute tongue part, and the volute tongue part is contacted with the volute component through the buffer component.

Further, the buffer member is a rubber member.

Furthermore, the buffer component comprises a connecting part and a contact part which are mutually connected, the connecting part is of a step structure, and the end part of the supercharging starting end of the volute tongue part is in contact with the step surface of the step structure; the connecting portion is disposed on one side of the pressurization starting end, and the contact portion is used for contacting with the volute component.

Furthermore, volute tongue portion and sealing part integrated into one piece, volute tongue portion include volute tongue mainboard and set up the connecting plate at volute tongue mainboard both ends, all are provided with the sealing part on two connecting plates.

According to a second aspect of the present invention, there is provided a fan structure, including a volute component and a volute tongue structure, wherein the volute tongue structure is the above volute tongue structure.

Further, the volute component comprises a first volute part and a second volute part which are arranged oppositely, and one end of the volute tongue part opposite to the first volute part and one end of the volute tongue part opposite to the second volute part are both provided with sealing parts.

Furthermore, a wind shielding bulge is arranged on the volute component, at least part of the wind shielding bulge extends into the sealing groove from the notch of the sealing groove, and an airflow circulation gap is formed between the wind shielding bulge and the groove bottom of the sealing groove.

Furthermore, the sealing grooves are multiple, the sealing grooves are arranged at intervals along the interval direction of the two groove side walls of the sealing grooves, the wind shielding bulges are multiple, and the wind shielding bulges and the sealing grooves are arranged in a one-to-one correspondence mode.

According to a third aspect of the present invention, there is provided an air conditioner, comprising a fan structure, wherein the fan structure is the above fan structure.

By applying the technical scheme, the volute tongue structure is a rotatable volute tongue structure, the sealing part with the sealing groove is arranged on the volute tongue part, and the notch of the sealing groove is arranged towards the volute component, so that airflow between the volute tongue part and the volute component flows out through the complex channel formed between the sealing groove and the volute component, a certain resistance is formed on the airflow, the flow rate of the airflow is reduced, and the leakage amount of the airflow is reduced. Therefore, the movement reliability of the volute tongue structure can be ensured, the volute tongue structure and the volute component can be effectively sealed, air leakage and air channeling of an air duct are prevented, the movement gap required by the volute tongue structure in the rotation process is ensured, and meanwhile the problem that air leakage is caused due to the fact that air is easy to directly flow out of the movement gap due to the movement gap of the fan of the air conditioner in the prior art is solved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 shows a schematic structural view of an embodiment of a volute tongue structure according to the invention;

FIG. 2 is a schematic view of the structure of the damping member of the volute tongue structure shown in FIG. 1;

FIG. 3 shows a schematic structural view of the interior of an embodiment of a fan structure according to the present invention;

FIG. 4 shows a cross-sectional view of the overall structure of the fan structure shown in FIG. 3 taken along the A-A direction;

FIG. 5 shows an enlarged partial view of the fan structure shown in FIG. 4 at B;

FIG. 6 shows an exploded view of the overall structure of the fan structure shown in FIG. 3;

FIG. 7 is a schematic view illustrating the flow direction of the air flow when the fan structure shown in FIG. 3 is in the upper air outlet state; and

fig. 8 is a schematic view illustrating the flow direction of the air flow when the fan structure shown in fig. 3 is in a lower air outlet state.

Wherein the figures include the following reference numerals:

1. a volute tongue structure; 11. a volute tongue portion; 110. a supercharging starting end; 12. a sealing part; 120. sealing the groove; 121. a first rib; 1211. avoiding the groove; 1212. an installation part; 122. a second rib; 111. a first roller; 112. a second roller; 13. a buffer member; 131. a connecting portion; 132. a contact portion; 2. a volute component; 20. a wind-shielding protrusion; 21. a first volute portion; 22. a second volute portion; 3. a fan blade.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1 to 8, the present invention provides a volute tongue structure, comprising: the volute tongue part 11 is rotatably arranged in the volute component 2; a sealing part 12, wherein the sealing part 12 is arranged at the end part of the volute tongue part 11; wherein the sealing portion 12 has a sealing groove 120, the notch of the sealing groove 120 being arranged towards the volute component 2 such that the gas flow between the volute tongue portion 11 and the volute component 2 flows out through the sealing groove 120.

The volute tongue structure is a rotatable volute tongue structure, the sealing part 12 with the sealing groove 120 is arranged on the volute tongue part 11, and the notch of the sealing groove 120 is arranged towards the volute component 2, so that airflow between the volute tongue part 11 and the volute component 2 flows out through a complex channel formed between the sealing groove 120 and the volute component 2, a certain resistance is formed on the airflow, the flow rate of the airflow is reduced, and the leakage amount of the airflow is reduced. Therefore, the movement reliability of the volute tongue structure can be ensured, the volute tongue structure and the volute component 2 can be effectively sealed, air leakage and air channeling of an air duct are prevented, the movement gap required by the volute tongue structure in the rotating process is ensured, and meanwhile the problem that air leakage is caused due to the fact that air is easy to directly flow out of the movement gap due to the movement gap of the fan of the air conditioner in the prior art is solved.

Specifically, the sealing groove 120 is used for enabling at least part of the wind shielding protrusion 20 of the volute component 2 to extend into the sealing groove 120 from the notch of the sealing groove 120, so that an airflow communication gap is formed between the sealing groove 120 and the volute component 2.

Preferably, the sealing portion 12 has a plurality of sealing grooves 120, and the plurality of sealing grooves 120 are disposed at intervals along the interval direction of the two groove sidewalls of the sealing grooves 120, so that the plurality of wind shielding protrusions 20 of the scroll component 2 protrude into the plurality of sealing grooves 120 in a one-to-one correspondence.

As shown in fig. 4 and 5, arrows indicate the flowing direction of the air flow, each wind shielding protrusion 20 of the volute component 2 is inserted into the corresponding sealing groove 120 of the sealing part 12, so that the gap between the wind shielding protrusion 20 and the sealing groove 120 forms an air flow path, which includes a plurality of sections parallel to the axis of the volute tongue structure and a plurality of sections perpendicular to the axis of the volute tongue structure, and the air flow path formed by these sections acts as a resistance to the air flow at the gap between the volute tongue structure and the volute component 2, so that the air flow cannot directly leak out, but needs to leak out through the air flow path with a plurality of complicated sections, and the air flow leakage amount is greatly reduced.

As shown in fig. 1, the sealing portion 12 includes a first rib 121 and a second rib 122 disposed opposite to each other, the first rib 121 and the second rib 122 are both fixed on the tongue portion 11 and form a sealing groove 120, and the first rib 121 is disposed outside the second rib 122. In this way, the first ribs 121 and the second ribs 122 of the sealing portion 12 are oppositely disposed to form the sealing groove 120, so that the wind shielding protrusion 20 is inserted into the sealing groove 120, and wind leakage and noise caused by direct blow-by of wind are effectively reduced.

As shown in fig. 1, the volute tongue portion 11 is provided with a first roller 111 for contacting with the volute component 2, and the rotation axis of the first roller 111 is parallel to the axis of the volute tongue portion 11; the first ribs 121 are provided with an avoidance groove 1211 for avoiding the first roller 111.

As shown in fig. 1, the volute tongue portion 11 is provided with a second roller 112 for contacting with the volute component 2, and the rotation axis of the second roller 112 is perpendicular to the axis of the volute tongue portion 11; the first rib 121 is provided with a mounting portion 1212 having a mounting cavity, the second roller 112 is rotatably mounted on the mounting portion 1212, and a part of the wheel body of the second roller 112 is located in the mounting cavity.

The volute tongue structure and the volute component 2 are supported and rotated by the first roller 111 and the second roller 112, so that a certain movement gap is ensured between the volute tongue structure and the volute component 2, and meanwhile, the movement displacement of the volute tongue structure caused by the movement gap is avoided, and the relative position between the volute tongue structure and the volute component 2 is ensured.

As shown in fig. 1, the volute tongue structure further includes: and the buffer part 13, the buffer part 13 is arranged at the pressurization starting end 110 of the volute tongue part 11, and the volute tongue part 11 is contacted with the volute component 2 through the buffer part 13.

The volute tongue structure is easy to collide with the volute component 2 in the rotating process and generate abnormal sound. The buffer component 13 is arranged at the pressurizing start end of the volute tongue structure, and two ends of the buffer component 13 are respectively in contact with the volute tongue structure and the volute component 2, so that a gap between the pressurizing start end and the volute component 2 can be sealed, wind is prevented from blowing in, abnormal sound caused by collision of the volute tongue structure and the volute component 2 can be reduced, and the sound quality of the whole air conditioner is improved.

Specifically, the pressurization initiation end 110 is an end of the volute tongue structure 1 that contacts the volute component 2 to form a pressurization cavity.

Preferably, the buffer member 13 is a rubber member. The buffer member 13 is formed by two-color injection molding of rubber at the pressurization starting end 110, or the buffer member 13 is separately processed and then fixed to the pressurization starting end 110. Due to the arrangement of the buffer component 13 made of rubber, when the volute tongue structure moves to an upper air outlet state or a lower air outlet state, the buffer component 13 can seal a gap between the pressurization starting end 110 of the volute tongue structure and the volute component 2, so that air leakage of a movement gap at the position is prevented, the volute tongue structure and the volute component 2 cannot be directly collided, abnormal sound generated by collision is avoided, damage caused by mutual collision of the volute tongue structure and the volute component 2 is reduced, and the tone quality of the whole air conditioner is ensured.

As shown in fig. 2, the buffer member 13 includes a connecting portion 131 and a contact portion 132 connected to each other, the connecting portion 131 is a stepped structure, and an end portion of the pressurization starting end 110 of the volute tongue portion 11 is in contact with a stepped surface of the stepped structure; the connection portion 131 is provided at one side of the pressurization starting end 110, and the contact portion 132 is for contact with the scroll member 2.

Preferably, the volute tongue portion 11 and the sealing portion 12 are integrally formed, the volute tongue portion 11 comprises a volute tongue main plate and connecting plates arranged at two ends of the volute tongue main plate, and the sealing portion 12 is arranged on each of the two connecting plates. The two connecting plates are respectively located at two axial ends of the volute tongue main plate and are parallel to each other, the volute tongue main plate is an arc-shaped plate, and the supercharging starting end 110 is arranged at one end of the volute tongue main plate in the arc direction.

The invention provides a fan structure which comprises a volute component 2 and a volute tongue structure 1, wherein the volute tongue structure 1 is the volute tongue structure.

Specifically, the fan structure is a centrifugal fan capable of reversely blowing air up and down, the volute tongue structure 1 is rotatably arranged in the fan structure, the volute tongue structure 1 is driven to rotate by a motor and a transmission wheel assembly arranged on the outer side of the volute tongue structure 1, and an outer gear ring is arranged on the volute tongue structure 1 and used for being meshed with a gear of the transmission wheel assembly.

The volute component 2 comprises a first volute part 21 and a second volute part 22 which are arranged oppositely, and the end of the volute tongue part 11 opposite to the first volute part 21 and the end opposite to the second volute part 22 are both provided with a sealing part 12.

Specifically, the volute component 2 includes a first volute portion 21 and a second volute portion 22 that are disposed opposite to each other, the first volute portion 21 and the second volute portion 22 are located at two axial ends of the volute tongue structure 1, respectively, and the fan realizes air outlet from top to bottom through rotation of the volute tongue structure 1.

The volute component 2 is provided with a wind shielding protrusion 20, at least part of the wind shielding protrusion 20 extends into the sealing groove 120 from the notch of the sealing groove 120, and an airflow circulation gap is formed between the wind shielding protrusion 20 and the groove bottom of the sealing groove 120.

The front axial end face and the rear axial end face of the volute tongue structure 1 are respectively provided with a first rib 121 and a second rib 122, and the corresponding first volute part 21 and the second volute part 22 are respectively provided with a wind shielding bulge to be respectively inserted into the sealing grooves 120 at the two end faces of the volute tongue structure 1, so that when an air duct is blown upwards or downwards, the air duct is prevented from directly escaping from a movement gap, the air leakage is effectively reduced, and the tone quality of the whole air conditioner is improved.

Preferably, the sealing groove 120 is plural, the plural sealing grooves 120 are provided at intervals along the interval direction of the two groove sidewalls of the sealing groove 120, the wind shielding protrusion 20 is plural, and the plural wind shielding protrusions 20 are provided in one-to-one correspondence with the plural sealing grooves 120.

The plurality of sealing grooves 120 are provided at intervals in the direction of spacing of both groove sidewalls of the sealing groove 120, that is, the plurality of sealing grooves 120 are arranged at intervals in the direction perpendicular to the extending direction of the sealing groove 120, and correspondingly, the plurality of wind shielding projections 20 are also provided at intervals in the direction of spacing of both groove sidewalls of the sealing groove 120, so that at least a part of the plurality of wind shielding projections 20 are inserted into the plurality of sealing grooves 120 in one-to-one correspondence.

As shown in fig. 6, the fan structure further includes a fan blade 3, and the fan blade 3 is located inside the volute tongue structure 1 to provide airflow to the volute tongue structure 1 through rotation of the fan blade 3.

The invention also provides an air conditioner which comprises the fan structure.

Fig. 7 and 8 are schematic diagrams illustrating the flow direction of the air flow when the fan structure of the present invention is in an upper air-out state or a lower air-out state, wherein arrows indicate the flow direction of the air flow.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A volute tongue structure, comprising:

the volute tongue part (11), the volute tongue part (11) is rotatably arranged in the volute component (2);

a seal portion (12), the seal portion (12) being provided at an end of the volute tongue portion (11);

wherein the sealing portion (12) has a sealing groove (120), the groove opening of the sealing groove (120) being arranged towards the volute component (2) such that the gas flow between the volute tongue portion (11) and the volute component (2) flows out through the sealing groove (120).

2. The volute tongue structure of claim 1, wherein the sealing groove (120) is configured to allow at least a portion of the wind-shielding protrusion (20) of the volute component (2) to protrude from the notch of the sealing groove (120) into the sealing groove (120) so that an airflow communication gap is formed between the sealing groove (120) and the volute component (2).

3. The volute tongue structure of claim 1, wherein the sealing portion (12) has a plurality of sealing grooves (120), and the sealing grooves (120) are arranged at intervals in a direction of spacing between two groove sidewalls of the sealing grooves (120) so that the wind shielding protrusions (20) of the volute component (2) protrude into the sealing grooves (120) in a one-to-one correspondence.

4. The volute tongue structure of claim 1, wherein the sealing portion (12) comprises a first rib (121) and a second rib (122) which are oppositely arranged, the first rib (121) and the second rib (122) are fixed on the volute tongue portion (11) and form the sealing groove (120), and the first rib (121) is arranged on the outer side of the second rib (122).

5. The volute tongue structure of claim 4, wherein the volute tongue portion (11) is provided with a first roller (111) for contacting the volute component (2), the axis of rotation of the first roller (111) being parallel to the axis of the volute tongue portion (11); an avoiding groove (1211) for avoiding the first roller (111) is formed in the first rib (121).

6. The volute tongue structure of claim 4, wherein the volute tongue portion (11) is provided with a second roller (112) for contacting the volute component (2), and the rotation axis of the second roller (112) is perpendicular to the axis of the volute tongue portion (11); the first rib (121) is provided with a mounting portion (1212) with a mounting cavity, the second roller (112) is rotatably mounted on the mounting portion (1212), and a part of wheel body of the second roller (112) is located in the mounting cavity.

7. The volute tongue structure of any one of claims 1-6, further comprising: a buffer member (13), wherein the buffer member (13) is arranged at a pressurization starting end (110) of the volute tongue portion (11), and the volute tongue portion (11) is in contact with the volute component (2) through the buffer member (13).

8. The volute tongue structure of claim 7, wherein the cushioning member (13) is a rubber member.

9. The volute tongue structure of claim 7, wherein the buffer member (13) comprises a connecting portion (131) and a contact portion (132) connected to each other, the connecting portion (131) has a stepped structure, and an end of the pressurization starting end (110) of the volute tongue portion (11) is in contact with a stepped surface of the stepped structure; the connecting portion (131) is disposed at one side of the pressurization starting end (110), and the contact portion (132) is used for contacting with the volute component (2).

10. The volute tongue structure of claim 1, wherein the volute tongue portion (11) and the sealing portion (12) are integrally formed, the volute tongue portion (11) comprises a volute tongue main plate and connecting plates arranged at two ends of the volute tongue main plate, and the sealing portion (12) is arranged on each of the two connecting plates.

11. A fan structure comprising a volute component (2) and a volute tongue structure (1), characterised in that the volute tongue structure (1) is as claimed in any one of claims 1 to 10.

12. The fan structure according to claim 11, wherein the volute component (2) comprises a first volute portion (21) and a second volute portion (22) which are arranged oppositely, and the sealing portion (12) is arranged at one end of the volute portion (11) opposite to the first volute portion (21) and at one end of the volute portion opposite to the second volute portion (22).

13. The fan structure according to claim 11, wherein a wind shielding protrusion (20) is disposed on the volute component (2), at least a portion of the wind shielding protrusion (20) extends into the sealing groove (120) from the groove opening of the sealing groove (120), and an airflow communication gap is formed between the wind shielding protrusion (20) and the groove bottom of the sealing groove (120).

14. The fan structure according to claim 13, wherein the sealing groove (120) is plural, the plural sealing grooves (120) are provided at intervals in a direction of spacing between both groove side walls of the sealing groove (120), the wind shielding protrusion (20) is plural, and the plural wind shielding protrusions (20) are provided in one-to-one correspondence with the plural sealing grooves (120).

15. An air conditioner comprising a fan structure, wherein the fan structure is as claimed in any one of claims 11 to 14.