CN217685769U

CN217685769U - Swing blade, swing blade assembly and air conditioner

Info

Publication number: CN217685769U
Application number: CN202220037099.2U
Authority: CN
Inventors: 陈吉存; 王佳林; 孙婷; 赫明亮; 张昊; 成汝振; 郝本华
Original assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Priority date: 2022-01-07
Filing date: 2022-01-07
Publication date: 2022-10-28
Anticipated expiration: 2032-01-07
Also published as: WO2023130786A1

Abstract

The embodiment of the application provides a swing blade, a swing blade assembly and an air conditioner, wherein the swing blade comprises a first part, a second part and a third part, the left end of the first part is connected with a driving part, the left end of the second part is fixed with a volute tongue, the third part is fixed between the first part and the second part, and the thickness of the third part is smaller than the minimum thickness of the first part and the second part. The swing blade assembly comprises a volute tongue and the swing blade. The air conditioner comprises a volute, a driving part and the swinging vane assembly. The utility model provides a pendulum leaf, pendulum leaf subassembly and air conditioner, the resistance when the pendulum leaf follows the drive division motion is littleer, and it is more smooth and easy to swing, has promoted the stability in the pendulum leaf working process, has improved the swing range of pendulum leaf, has improved the guide range of pendulum leaf to the air, has prolonged the life of pendulum leaf.

Description

Swing blade, swing blade assembly and air conditioner

Technical Field

The embodiment of the application relates to the technical field of air conditioners, in particular to a swing blade, a swing blade assembly and an air conditioner.

Background

Air conditioning refers to a device for adjusting and controlling parameters such as temperature, humidity, flow rate and the like of ambient air in a building or a structure by manual means.

In the related art, an air conditioner may include an indoor unit and an outdoor unit, wherein the indoor unit may be installed indoors so as to change indoor air. The indoor unit may include a case in which a duct for flowing air may be formed. The air outlet end of the air duct can be internally provided with a swinging blade which can swing relative to the shell. The user can adjust the swing angle of the swing blade through the driving device to change the air flow direction in the air outlet end of the air duct.

However, the swing range of the swing vane of the related art is limited, and the guide range of the swing vane to the air is limited.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a swing blade, a swing blade assembly and an air conditioner, and aims to solve the problems that the swing amplitude of the swing blade in the related art is limited and the guide range of the swing blade to air is limited.

In order to achieve the purpose, the application provides the following technical scheme:

an aspect of an embodiment of the present application provides a swing blade for an air conditioner, where the air conditioner includes a volute tongue, a volute, and a driving portion, the volute tongue is opposite to the volute and surrounds an air duct for air to pass through, the driving portion is configured to drive the swing blade to swing, the swing blade is swingably disposed in the air duct, the swing blade includes a first portion, a second portion, and a third portion, a left end of the first portion is connected to the driving portion, a left end of the second portion is fixed to the volute tongue, the third portion is fixed between the first portion and the second portion, and a thickness of the third portion is smaller than a minimum thickness of the first portion and the second portion.

In one possible implementation manner, the third portion and the first portion are rounded by a curved surface, and the third portion and the second portion are rounded by a curved surface.

In one possible implementation manner, the third portion is provided with a through hole, and the through hole penetrates through the third portion.

In one possible implementation, at least a portion of the swing blade is configured to protrude beyond the rear end of the volute tongue, the swing blade having a groove with an opening to the left.

In one possible implementation manner, the second portion includes a first section and a second section, the first section is fixed to the third portion, the second section is bent towards the front left relative to the first section and is fixed to the volute tongue, and the groove is formed between the second section and the third portion.

In one possible implementation, at least part of the third portion is configured to protrude beyond the rear end of the volute tongue; and/or the second section is fixed with the front section of the volute tongue and is arranged along the front section of the volute tongue.

In one possible implementation manner, ribs are fixed on the upper surface of the second part.

Another aspect of the embodiments of the present application provides a swing blade assembly, which includes a volute tongue and the swing blade as described above, where there are a plurality of swing blades, the plurality of swing blades are arranged at intervals along a length direction of the volute tongue, and a second portion of each swing blade is integrally disposed with the volute tongue.

A further aspect of an embodiment of the present application provides an air conditioner, including a volute, a driving part, and the swing vane assembly as described above, wherein the volute and a volute tongue of the swing vane assembly enclose an air duct for air to pass through; the driving part comprises a connecting rod and a driver, the connecting rod is arranged along the length direction of the volute tongue and is connected with the first part of each swing blade, and the driver is used for driving the connecting rod to move so as to drive each swing blade to swing relative to the air duct.

In one possible implementation manner, the connecting rod is provided with a plurality of mounting holes, each mounting hole comprises an arc section and a straight section, and the diameter of each arc section is larger than the width of each straight section; the two straight line sections are respectively communicated with two radial ends of the circular arc section; the left end of the first part of each swing blade is provided with a mounting block, the mounting block is T-shaped, and the mounting block is matched with the mounting hole.

The application provides a pendulum leaf, pendulum leaf subassembly and air conditioner, through setting up the first part of being connected with the drive division to through setting up the second part of being connected with the snail tongue, and fix first part and second part through the third part, the drive division accessible drives the first part motion, and then makes at least partial third part and at least partial second part motion. The thickness of the third part is smaller than the minimum thickness of the first part and the second part, so that the rigidity of the third part is reduced, the third part is easy to elastically deform, the resistance of the swinging blade in movement along with the driving part is smaller, the swinging is smoother, the stability of the swinging blade in the working process is further improved, the swinging amplitude of the swinging blade is improved, the guiding range of the swinging blade to air is improved, and the service life of the swinging blade is prolonged.

In addition to the technical problems solved by the embodiments of the present application, the technical features constituting the technical solutions, and the advantages brought by the technical features of the technical solutions described above, other technical problems solved by the embodiments of the present application, other technical features included in the technical solutions, and advantages brought by the technical features will be further described in detail in the detailed description.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.

Fig. 1 is a cross-sectional view of an indoor unit of an air conditioner according to an embodiment of the present disclosure;

fig. 2 is a perspective view of a portion of the indoor unit of the air conditioner shown in fig. 1;

FIG. 3 is a schematic view of the connection of the portion of the volute and the wobble plate assembly shown in FIG. 2;

FIG. 4 is an exploded view of the drive and wobble plate assembly shown in FIG. 2;

FIG. 5 is a schematic view of the swing blade and a portion of the volute tongue shown in FIG. 4;

FIG. 6 is a schematic view of another perspective of the swing blade and a portion of the volute tongue according to an embodiment of the present disclosure;

FIG. 7 is a schematic view of a portion of the linkage of the drive section shown in FIG. 4;

fig. 8 is an enlarged view of fig. 2 at a.

Description of reference numerals:

1-volute tongue; 11-rear section; 12-a fillet section; 13-front section;

2-a volute; 21-a top plate; 211-grooves; 22-side plate; 23-a base plate;

3-a drive section; 31-a connecting rod; 32-a driver;

4-air duct;

5-swinging leaves; 51-first portion; 52-second part; 521-first section; 522-a second section; 53-third part; 531-a through hole; 54-curved surface; 55-a trench; 56-ribs;

6-mounting holes; 61-arc segment; 62-straight line segment;

7-mounting a block; 71-vertical section; 72-horizontal segment;

81-a housing; 811-air intake; 812-an air outlet; 82-a heat exchanger; and 83-a fan.

With the above figures, there are shown specific embodiments of the present application, which will be described in more detail below. These drawings and written description are not intended to limit the scope of the inventive concepts in any manner, but rather to illustrate the inventive concepts to those skilled in the art by reference to specific embodiments.

Detailed Description

In the related art, the rigidity of the swing blade is high, so that the swing amplitude of the swing blade is limited, and the guide range of the swing blade for air is limited. In view of this, the swing blade provided in the embodiments of the present application improves the elastic deformation of the swing blade by reducing the rigidity of the swing blade, so as to improve the swing amplitude of the swing blade.

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments.

The embodiment of the application provides an air conditioner, which can comprise an indoor unit and an outdoor unit. Wherein, the indoor unit can be installed indoors. The outdoor unit can be installed indoors; or, the outdoor unit can be installed outdoors; or the outdoor unit and the indoor unit may be fixed and installed together indoors. The outdoor unit may include a compressor, a heat exchanger, a throttling element, and the like. The indoor unit can comprise a fan, a heat exchanger and the like. The outdoor unit and the indoor unit can form a complete circulating system through the medium pipeline so as to achieve the purpose of adjusting the indoor air temperature or freshness.

In addition, the indoor unit may be a cabinet type indoor unit standing on the ground. Of course, in some embodiments, the indoor unit may also be a wall-mounted indoor unit hung on a wall surface. The embodiment of the present application is described by taking a cabinet type indoor unit as an example, and the setting mode of the wall-mounted indoor unit can be obtained by referring to a simple derivation, which is not described herein again.

For convenience of description, in the present embodiment, the direction indicated by the arrow X in the drawing is the left side of the indoor unit, and the opposite direction is the right side of the indoor unit; the direction indicated by the arrow Y is the front side of the indoor unit, and the opposite direction is the rear side of the indoor unit; the direction indicated by the arrow Z is the upper side of the indoor unit, and the opposite direction is the lower side of the indoor unit.

Fig. 1 is a cross-sectional view of an indoor unit of an air conditioner according to an embodiment of the present application. Referring to fig. 1, the indoor unit may include a case 81, a heat exchanger 82, and a fan 83. An accommodating space may be formed in the housing 81, and the heat exchanger 82 and the blower 83 may be accommodated in the accommodating space. To blow air into the room, the front end of the housing 81 may have an air outlet 812. Housing 81 may also have an intake vent 811, and intake vent 811 may be disposed at a rear end of housing 81 as shown in FIG. 1. Of course, the air inlet 811 may also be disposed at other positions of the housing 81, and the position of the air inlet 811 on the housing 81 is not particularly limited in the embodiment of the present application. The arrows in fig. 1 indicate the air flow direction, and referring to fig. 1, when the indoor unit is in a cooling mode, indoor air can enter the housing 81 through the air inlet 811 under the guidance of the fan 83, and can flow out of the housing 81 through the air outlet 812 after exchanging heat with the heat exchanger 82.

In order to guide the air flowing out of the fan 83, the air outlet end of the fan 83 may be formed with an air duct 4. At least part of the air outlet end of the fan 83 may be located in the air duct 4, and the air outlet 812 of the air duct 4 may be communicated with the air outlet 812 of the housing 81. In order to form the air duct 4, the indoor unit may further include a volute tongue 1 and a volute 2, both the volute tongue 1 and the volute 2 may be located in the casing 81, and the volute 2 may be opposite to the volute tongue 1 and may surround the air duct 4 for guiding air with the volute tongue 1.

Fig. 2 is a perspective view of the indoor unit of the partial air conditioner shown in fig. 1, and arrows in fig. 2 indicate the flow direction of air. Referring to fig. 2, the scroll casing 2 may include a top plate 21, a side plate 22, and a bottom plate 23. The top plate 21 and the bottom plate 23 may be oppositely disposed, and the top plate 21 may be parallel to each other, and the side plate 22 may be fixed between the top plate 21 and the bottom plate 23. The fan 83 (not shown in FIG. 2) may be a crossflow fan 83, and the fan 83 may be disposed along the length of the side panel 22. The upper end of the fan 83 can be rotatably connected with the top plate 21, and the lower end of the fan 83 can be rotatably connected with the bottom plate 23. In addition, the volute tongue 1 is detachably connected with the volute casing 2, so that the volute tongue 1 can be detached from the volute casing 2, and the maintenance or replacement of the volute tongue 1 is facilitated.

Referring to fig. 1, the volute tongue 1 may also be disposed along the length of the side plate 22 of the volute 2. Referring to fig. 1, the volute tongue 1 may include a rear section 11, a rounded section 12, and a front section 13. An included angle may be formed between the rear section 11 and the front section 13, and the fillet section 12 may be fixed between the rear section 11 and the front section 13 to achieve a smooth transition between the rear section 11 and the front section 13, so as to facilitate the flow of air.

With continued reference to fig. 1 and 2, in order to change the air outlet direction of the air, the indoor unit may include a driving portion 3 and a swing blade 5 disposed in the air duct 4, and the driving portion 3 may drive the swing blade 5 to swing in the air duct 4 to adjust the air outlet direction and the air outlet range. With reference to fig. 2, in order to uniformly change the air outlet direction, a plurality of swing blades 5 may be provided, and the plurality of swing blades 5 may be uniformly arranged along the length direction of the volute tongue 1.

Fig. 3 is a schematic view of a part of the connection between the volute 2 and the swing vane 5 shown in fig. 2. Referring to fig. 3, the swing blade 5 may include a first portion 51, a second portion 52, and a third portion 53. The left end of the first part 51 can be connected with the driving part 3, and the left end of the second part 52 can be fixed with the volute tongue 1. The third portion 53 may be fixed between the first portion 51 and the second portion 52.

Referring to fig. 4, the driving part 3 may include a link 31 and a driver 32, and the driver 32 may move the link 31. During the movement of the link 31 by the driver 32, the link 31 may have a displacement along the length of the volute tongue 1. Exemplarily, in fig. 4, the volute tongue 1 is arranged in a vertical direction, and the connecting rod 31 may have a displacement in the vertical direction.

Referring to fig. 3 and 4, the connecting rod 31 may be disposed along the length direction of the volute tongue 1, and the first portion 51 of each volute tongue 1 may be connected to the connecting rod 31. The driver 32 can move the left end of the first portion 51 upward or downward through the link 31 to change the swing blade 5 from the horizontal state shown in fig. 3 to the inclined state, i.e., to swing the swing blade 5 within the air duct 4, thereby causing the swing blade 5 to guide air upward or downward.

When the swing blade 5 is in a horizontal state as shown in fig. 3, the front end and the rear end of the swing blade 5 can be in the same plane perpendicular to the length direction of the volute tongue 1; that is, when the swing blade 5 is in a horizontal state, the swing blade 5 may be disposed perpendicular to the longitudinal direction of the volute tongue 1. When the swing blade 5 is in an inclined state, the front end of the swing blade 5 is higher than the rear end of the swing blade 5, or the front end of the swing blade 5 is lower than the rear end of the swing blade 5; that is, when the swing blade 5 is in the inclined state, at least a part of the swing blade 5 can be inclined with respect to the length direction of the volute tongue 1.

In addition, referring to fig. 4, in order to simplify the assembly work of the indoor unit and also to improve the reliability of the connection between the swing blade 5 and the volute tongue 1, the volute tongue 1 and the swing blade 5 may be formed by an integral forming process such as injection molding. Part of the volute tongue 1 and a plurality of swing blades 5 can form a swing blade 5 assembly.

As can be seen from the above, when the swing blade 5 changes from the horizontal state to the inclined state, the swing blade 5 is elastically deformed. The larger the elastic deformation capability of the swing blade 5 is, the larger the inclination angle that the swing blade 5 can reach is, and the larger the air outlet area of the indoor unit is. The thicker swing blade 5 has higher rigidity, so that the swing blade is not easy to deform. Therefore, the deformability of the swing blade 5 can be changed by reducing the thickness of the swing blade 5.

Fig. 5 is a schematic view of the swing blade 5 and a part of the volute tongue 1 shown in fig. 4, and fig. 6 is a schematic view of another view of the swing blade 5 and the part of the volute tongue 1 according to the embodiment of the present disclosure. Referring to fig. 5 and 6, the thickness of the third portion 53 may be less than the minimum thickness of the first and

second portions

51 and 52.

Specifically, since the first portion 51 is connected to the link 31 and the second portion 52 is connected to the volute tongue 1, both of these portions require a certain thickness to maintain the structural strength of the swing blade 5. The thickness that so can attenuate third part 53 improves the deformability of pendulum leaf 5 for the resistance when pendulum leaf 5 follows the motion of drive division 3 is littleer, and the swing is more smooth and easy, and then has promoted the stability in the pendulum leaf 5 working process, has prolonged the life of pendulum leaf 5, and the comfort when user's use is better simultaneously.

Alternatively, the third portion 53 may be rounded to the first portion 51 by a curved surface 54, and the third portion 53 may be rounded to the second portion 52 by the curved surface 54, so as to guide the air.

Wherein the third portion 53 may be provided with a through hole 531, and the through hole 531 may penetrate the third portion 53 so as to improve the deformability of the third portion 53. In addition, the through holes 531 can decompose the air quantity, so that the air blown out from the indoor unit is prevented from being strong, the air supply comfort of the indoor unit is improved, and the air outlet tone quality is also improved. The shape of the through hole 531 may be a regular pattern such as a polygon, a circle, an ellipse, or a waist, and the shape of the through hole 531 may be an irregular pattern.

Referring to fig. 1 and 3-6, alternatively, the second portion 52 may be fixed to the front section 13 of part of the volute tongue 1. Due to space limitations, the connection between the first part 51 of the swing blade 5 and the connecting rod 31 is closer to the connection between the second part 52 of the swing blade 5 and the volute tongue 1. In order to ensure the elastic deformation capability of the swing blade 5, the length of the swing blade 5 in the direction of the arrow Y can be prolonged, optionally, at least a part of the swing blade 5 can extend beyond the rear end of the volute tongue 1, and the swing blade 5 can be provided with a groove 55, and the groove 55 can be provided with an opening facing to the left side.

Illustratively, the second portion 52 may include a first section 521 and a second section 522, and the first section 521 may be fixed with the third portion 53. The second segment 522 may be bent toward the front left with respect to the first segment 521 and may be fixed to the tongue 1, and a groove 55 may be formed between the second segment 522 and the third portion 53.

In addition, at least part of the third portion 53 may extend beyond the rear end of the volute tongue 1 and connect with the first section 521, so as to increase the area in which the swing blade 5 can deform. Furthermore, in order to improve the connection strength between the third portion 53 and the volute tongue 1, the second section 522 may be fixed to the front section 13 of the volute tongue 1 and may be disposed along the front section 13 of the volute tongue 1. Of course, the strength of the third portion 53 can also be increased by fixing the ribs 56 to the upper surface of the second portion 52. At least some of the ribs 56 may be secured to the first section 521 and at least some of the ribs 56 may be secured to the second end. The shape of the ribs 56 may be the same as the shape of the third portion 53.

The connection between the swing blade 5 and the link 31 will be described below. The swing blade 5 and the connecting rod 31 can be fixedly connected through clamping, fastening, welding and other modes, and the swing blade 5 and the connecting rod 31 can also be hinged. When the swing blade 5 is hinged with the connecting rod 31, the swing blade 5 can rotate relative to the connecting rod 31. Fig. 7 is a schematic view of a part of the link 31 of the driving part 3 shown in fig. 4. Referring to fig. 3, 4-7, for example, the link 31 may have a plurality of mounting holes 6, and the plurality of mounting holes 6 may be spaced apart along the length of the link 31. That is, adjacent two mounting holes 6 may have a predetermined interval therebetween along the length of the connecting rod 31. The left end of the first part 51 of the swing blade 5 may have a mounting block 7, and the mounting block 7 may be inserted through the mounting hole 6 and may be engaged with the mounting hole 6. The mounting hole 6 can limit and mount the mounting block 7.

For example, referring to fig. 7, the mounting hole 6 may include a circular arc section 61 and a straight section 62, and the diameter of the circular arc section 61 may be larger than the width of the straight section 62. The number of the straight line sections 62 may be two, and the two straight line sections 62 may be respectively connected to two radial ends of the circular arc section 61. Referring to fig. 5 and 6, the mounting block 7 may be T-shaped. Wherein, the mounting block 7 may include a vertical section 71 and a horizontal section 72. The vertical section 71 may form an angle with the left end surface of the first portion 51 of the swing blade 5, the horizontal section 72 may be fixed with the middle of the vertical section 71, and a certain angle may be formed between the vertical sections 71. In fig. 5 and 6, the vertical section 71 is perpendicular to the left end surface of the first portion 51, and the horizontal section 72 is perpendicular to the vertical section 71.

When the mounting block 7 and the mounting hole 6 are assembled, the horizontal section 72 of the mounting block 7 can pass through the straight section 62 of the mounting hole 6, and after the vertical section 71 of the mounting block 7 passes through the circular arc section 61 of the mounting hole 6, the connecting rod 31 is rotated by 90 degrees to change the matching state of the mounting block 7 and the mounting hole 6 shown in fig. 3, that is, the vertical section 71 of the mounting block 7 is limited in the circular arc section 61.

Alternatively, the link 31 may be a single rod as shown in fig. 4, and the link 31 may be composed of a plurality of sub-rods connected to each other. By providing the link 31 as a plurality of sub-links connected to each other, the structural strength of the link 31 can be improved. For example, two adjacent sub-connecting rods can be connected in a matching mode of a clamping groove, so that the sub-connecting rods are convenient to connect and can be detached and replaced. And, according to the length requirement of the air outlet 812 of the indoor unit, under the condition that the lengths of the sub-connecting rods are the same, the length of the connecting rod 31 can be changed by adjusting the number of the sub-connecting rods, so that the material types can be reduced, and the cost can be saved.

Fig. 8 is an enlarged view of fig. 2 at a. Referring to fig. 2 and 8, the top plate 21 of the scroll casing 2 may be mounted with the driver 32, the top plate 21 of the scroll casing 2 may be provided with a groove 211, and the link 31 may pass through the groove 211 and be connected with the swing vane 5. The driver 32 may be a linear motor, an air cylinder, or the like capable of outputting an axial force; the drive 32 may also include a rotary motor capable of outputting torque as shown in fig. 8. When the driver 32 is a rotary motor, a reversing mechanism for converting torque into axial force may be provided between the rotary motor and the connecting rod 31. Illustratively, the reversing mechanism may be a linkage 31 mechanism as shown in fig. 8, and the reversing mechanism may also be a rack and pinion mechanism. The rotating motor can be powered by an external power supply or a power supply module of the indoor unit.

The terms "upper" and "lower" are used for describing relative positions of the structures in the drawings, and are not used for limiting the scope of the present application, and the relative relationship between the structures may be changed or adjusted without substantial technical changes.

It should be noted that: in this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In addition, in the present application, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integral to; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A swing blade for an air conditioner comprises a volute tongue, a volute and a driving part, wherein the volute tongue is opposite to the volute and surrounds an air duct for air to pass through, the driving part is used for driving the swing blade to swing, the swing blade is arranged in the air duct in a swinging mode and comprises a first part, a second part and a third part, the left end of the first part is connected with the driving part, the left end of the second part is fixed with the volute tongue, the third part is fixed between the first part and the second part, and the thickness of the third part is smaller than the minimum thickness of the first part and the second part.

2. The swing blade according to claim 1, wherein the third portion is smoothly curved with respect to the first portion, and the third portion is smoothly curved with respect to the second portion.

3. The swing blade according to claim 1, wherein the third portion is provided with a through hole, and the through hole penetrates through the third portion.

4. The swing blade according to any one of claims 1 to 3 wherein at least a portion of the swing blade is configured to project beyond the rear end of the volute tongue, the swing blade having a groove with an opening to the left.

5. The swing blade of claim 4, wherein the second portion includes a first section and a second section, the first section being fixed to the third portion, the second section being bent toward the front left with respect to the first section and fixed to the volute tongue, the second section and the third portion having the groove formed therebetween.

6. The swing blade of claim 5, wherein at least a portion of the third portion is configured to protrude beyond a rear end of the volute tongue; and/or the presence of a gas in the gas,

the second section is fixed with the front section of the volute tongue and is arranged along the front section of the volute tongue.

7. The swing blade according to claim 4, wherein a rib is fixed to an upper surface of the second portion.

8. A swing blade assembly comprising a volute tongue and a plurality of swing blades as claimed in any one of claims 1 to 7, wherein the plurality of swing blades are spaced apart along the length of the volute tongue and the second portion of each swing blade is integral with the volute tongue.

9. An air conditioner, characterized by comprising a volute, a driving part and the swinging vane assembly as claimed in claim 8, wherein the volute and a volute tongue of the swinging vane assembly enclose an air duct for air to pass through; the driving part comprises a connecting rod and a driver, the connecting rod is arranged along the length direction of the volute tongue and is connected with the first part of each swinging blade, and the driver is used for driving the connecting rod to move so as to drive each swinging blade to swing relative to the air duct.

10. The air conditioner as claimed in claim 9, wherein the link has a plurality of mounting holes, the mounting holes including a circular arc section and a straight section, the circular arc section having a diameter greater than a width of the straight section; the number of the straight line sections is two, and the two straight line sections are respectively communicated with two radial ends of the circular arc section;

the left end of the first part of each swing blade is provided with a mounting block, the mounting block is T-shaped, and the mounting block is matched with the mounting hole.