CN221403229U - Air conditioner - Google Patents

Abstract

The utility model discloses an air conditioner, which comprises: the air inlet and the air outlet are arranged on the machine body, and the air inlet and the air outlet are communicated with an air guide flow channel between the air inlet and the air outlet; the main body wind guide surface positioned at the downstream of the first volute tongue is formed in the wind guide flow passage, the side surface of the first volute tongue, which faces the wind guide flow passage, is tangent to the main body wind guide surface, and a convex first wind guide curved surface is formed at one end of the first volute tongue, which is far away from the main body wind guide surface. The air conditioner is beneficial to reducing the air flow resistance at the inlet end of the air guide channel, reducing the air flow noise in the machine body, improving the tone quality of the air conditioner, increasing the air quantity and increasing the air flow efficiency in the air guide channel.

Description

Air conditioner

Technical Field

The utility model relates to the technical field of air conditioner manufacturing, in particular to an air conditioner.

Background

With the recent development of air conditioning technology, air conditioners are increasingly entering the home of general users. In the related art, in the air conditioner with double air channels, a front volute tongue and a rear volute tongue are arranged at the inlet end of an air guide channel, but the rear volute tongue is constructed as a straight plate, the tone quality of the air conditioner is poor, and the rear volute tongue forms a step structure in the air guide channel, so that the local resistance is increased, the air quantity is reduced, the noise is increased, and the room for improvement exists.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the air conditioner, the wind resistance at the rear volute tongue of the air conditioner is small, the wind is smooth, and large noise can not be generated, thereby being beneficial to improving the tone quality of the air conditioner.

According to an embodiment of the utility model, an air conditioner includes: the air inlet and the air outlet are arranged on the machine body, and the air inlet and the air outlet are communicated with an air guide flow channel between the air inlet and the air outlet; the main body wind guide surface positioned at the downstream of the first volute tongue is formed in the wind guide flow passage, the side surface of the first volute tongue, which faces the wind guide flow passage, is tangent to the main body wind guide surface, and a convex first wind guide curved surface is formed at one end of the first volute tongue, which is far away from the main body wind guide surface.

According to the air conditioner provided by the embodiment of the utility model, the side surface of the first volute tongue facing the air guide channel is tangent to the main body air guide surface, and the first volute tongue is provided with the convex first air guide curved surface at one end far away from the main body air guide surface, so that the air flow resistance at the air inlet end of the air guide channel is reduced, the air flow noise in the air conditioner is reduced, the tone quality of the air conditioner is improved, the air quantity is increased, and the air flow efficiency in the air guide channel is increased.

According to some embodiments of the utility model, the first wind guiding curved surface extends along a first direction, the first direction intersects with the inflow direction of the inflow end, and the first wind guiding curved surface is provided with a drainage groove extending along the inflow direction of the inflow end.

According to some embodiments of the utility model, the plurality of the drainage grooves are distributed on the first wind guiding curved surface at intervals along the first direction.

According to some embodiments of the utility model, a radius of a volute tongue of the first wind-guiding curved surface is gradually changed along the first direction.

According to some embodiments of the utility model, a radius of a volute tongue at a first end of the first wind-guiding curved surface along the first direction is R1, a radius of a volute tongue at a second end of the first wind-guiding curved surface is R2, a length of a drainage groove located at the first end of the first wind-guiding curved surface along the first direction in the plurality of drainage grooves is W1, and a length of a drainage groove located at the second end of the first wind-guiding curved surface along the first direction is W2; wherein, satisfy: 1 < w1/R1 < 3,1 < w2/R2 < 3.

According to some embodiments of the utility model, the first air guiding curved surface has a first end with a volute tongue radius R1 and a second end with a volute tongue radius R2 along the first direction, and the maximum depth of the drainage groove is h, and the air conditioner is as follows: r1 is less than h and less than R2.

According to some embodiments of the utility model, the depth of the plurality of drainage grooves is configured to be the same; and/or the widths of the plurality of drainage grooves are configured to be the same.

According to some embodiments of the utility model, the cross section of the drainage groove is in a flaring shape.

According to some embodiments of the utility model, the drainage groove has a top width of L1 and a bottom width of L2, and the drainage groove has a depth of W3, and satisfies: l2 is less than W3 and less than L1.

According to some embodiments of the utility model, the first air guiding curved surface is at least partially protruding from a side of the first volute tongue facing out of the air guiding channel.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

Fig. 1 is a sectional view of an air conditioner according to an embodiment of the present utility model;

FIG. 2 is an enlarged view at A in FIG. 1;

FIG. 3 is a cross-sectional view of a first tongue portion at a first end of a first wind-guiding curved surface in accordance with an embodiment of the present utility model;

FIG. 4 is a cross-sectional view of a first tongue portion at a second end of a first curved wind-guiding surface in accordance with an embodiment of the present utility model;

Fig. 5 is a schematic structural view of a first scroll case and a second scroll case of an air conditioner according to an embodiment of the present utility model;

FIG. 6 is an enlarged view at B in FIG. 5;

FIG. 7 is an enlarged view at C in FIG. 5;

Fig. 8 is a schematic structural view of a first scroll case of an air conditioner according to some embodiments of the present utility model;

Fig. 9 is an enlarged view at E in fig. 8;

fig. 10 is an enlarged view at E in fig. 8;

Fig. 11 is a schematic structural view of a first scroll case of an air conditioner according to other embodiments of the present utility model;

Fig. 12 is a schematic structural view (another view) of a first scroll case of an air conditioner according to other embodiments of the present utility model;

Fig. 13 is an enlarged view of F in fig. 12;

Fig. 14 is a schematic structural view of a first scroll case of an air conditioner according to other embodiments of the present utility model (further, view angle);

fig. 15 is an enlarged view at G in fig. 14.

Reference numerals:

The air conditioner 100 is provided with a plurality of air-conditioning units,

The machine body 1, an air inlet 11, an air outlet 12, an air guide flow channel 13, a main body air guide surface 14, a first volute 15, a second volute 16,

A first volute tongue 2, a first wind-guiding curved surface 21, a first end 211, a second end 212, a drainage groove 22, a second volute tongue 3, a second wind-guiding curved surface 31,

A heat exchanger 4, an air flow driving member 5.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The following describes an air conditioner 100 according to an embodiment of the present utility model with reference to fig. 1 to 15, where the air resistance of the air inlet at the inlet end of the air guide channel 13 of the air conditioner 100 is small, which is beneficial to increasing the air inlet volume, and the air inlet noise is small, which is beneficial to improving the sound quality effect of the air conditioner 100.

As shown in fig. 1 to 15, an air conditioner 100 according to an embodiment of the present utility model includes: a machine body 1. The machine body 1 is provided with an air inlet 11, an air outlet 12 and an air guide flow channel 13, wherein the air guide flow channel 13 is communicated between the air inlet 11 and the air outlet 12, as shown in fig. 1, the air inlet 11 can be arranged at the top of the machine body 1, and the air outlet 12 can be arranged at the right side of the machine body 1. It should be noted that, the air conditioner 100 in the present utility model may be a wall-mounted air conditioner, wherein the left side of the body 1 shown in fig. 1 is the rear side of the actual air conditioner 100, i.e. the side facing the wall, and the right side of the body 1 shown in fig. 1 is the front side of the actual air conditioner 100, i.e. the side facing the user. Wherein, the machine body 1 is internally provided with a gas path driving part and a heat exchanger 4, and if the heat exchanger 4 is an evaporator.

Therefore, the air flow outside the machine body 1 can enter the machine body 1 from the air inlet 11 under the action of the air flow driving piece 5, flow to the air outlet 12 along the air guide flow channel 13 in the machine body 1, further be conveyed from the air outlet 12 to the front side of the machine body 1, namely the user side, and exchange heat through the heat exchanger 4 in the process of flowing in the machine body 1 so as to adjust the temperature of the air flow and output the air flows in different temperature states to the user side. Specifically, as shown in fig. 1 and 5, a first volute 15 and a second volute 16 are disposed in the machine body 1, the second volute 16 is located at the front side of the first volute 15, and the first volute 15 and the second volute 16 are spaced apart and together define a diversion air duct.

The air inlet end of the air guide channel 13 is provided with a first volute tongue 2 at a side far from the air outlet 12 and a second volute tongue 3 at a side close to the air outlet 12, as shown in fig. 1, it should be noted that the air guide channel 13 in the present utility model is at least partially curved, the air inlet 11 and the air outlet 12 are respectively located at the top and the front side of the machine body 1, the rear side of the air inlet end of the air guide channel 13 is provided with the first volute tongue 2, and the front end of the air guide channel 13 is provided with the second volute tongue 3, specifically, as shown in fig. 1, the first volute tongue 2 is provided with the first volute 15, and the second volute tongue 3 is provided with the second volute tongue 16, in other words, the first volute tongue 2 can be used as a rear volute tongue in the machine body 1, and the second volute tongue 3 can be used as a front volute tongue in the machine body 1. After the air flow enters the machine body 1 from the air inlet 11, the air flow can enter the air guide flow channel 13 from the space between the first volute tongue 2 and the second volute tongue 3, so that the air flow is guided, in other words, the first volute tongue 2 and the second volute tongue 3 can play a role of guiding the air towards the air guide flow channel 13 at the inflow end of the air guide flow channel 13.

Further, a main body air guiding surface 14 located at the downstream of the first volute tongue 2 is formed in the air guiding channel 13, as shown in fig. 1, the first volute tongue 2 is located at the rear side of the upper end of the air guiding channel 13, the main body air guiding surface 14 is located below the first volute tongue 2, and the main body air guiding surface 14 is configured as an arc surface and extends from top to bottom in an arc shape, so that the air flow entering the air guiding channel 13 can flow forward to the air outlet 12 under the guidance of the main body air guiding surface 14. The side surface of the first volute tongue 2 facing the inner side of the air guiding channel 13 is tangent to the main air guiding surface 14, specifically, the front side surface of the first volute tongue 2, i.e. the right side surface in fig. 1, is tangent to the main air guiding surface 14, so that when air flows from the space between the first volute tongue 2 and the second volute tongue 3 to the inner side of the air guiding channel 13, the air flows along the side surface of the first volute tongue 2 facing the inner side of the air guiding channel 13 to the main air guiding surface 14, and in the flowing process, each position of the air guiding surface is in a smooth state, no abrupt flow blocking structure is formed, and therefore, compared with the traditional connection between the rear volute tongue and the inner wall surface of the air guiding channel 13, the design of the first volute tongue 2 in the utility model enables the air flow conveying process to be smoother, is beneficial to reducing the air flow noise in the air guiding channel 13, the overall sound quality of the air conditioner 100 is better, the air flow in the air guiding channel 13 is not caused to be obviously reduced, the heat exchanging performance of the air conditioner is ensured, and the user experience is improved.

And, the first volute tongue 2 is formed with a protruding first wind-guiding curved surface 21 at one end far away from the main body wind-guiding surface 14, wherein, the first volute tongue 2 is a free end of the first volute tongue 2 at one end far away from the main body wind-guiding surface 14, that is, as shown in fig. 1, the first volute tongue 2 is an upper end of the first volute tongue 2 and is an end close to the air inlet 11 at one end far away from the main body wind-guiding surface 14, through the arrangement of the first wind-guiding curved surface 21, the air flow entering the machine body 1 from the air inlet 11 can smoothly enter the wind-guiding flow channel 13 under the wind guiding action of the first wind-guiding curved surface 21, that is, the air flow at the inflow end of the wind-guiding flow channel 13 flows smoothly along the curved surface, and compared with the straight-plate volute tongue structure, the air flow in the machine body 1 can be further increased, and the inflow noise is reduced. In addition, a second wind guiding curved surface 31 may be provided at the second volute tongue 3, and the second wind guiding curved surface 31 may function as a wind guide on the front side of the inlet end of the wind guiding flow path 13.

According to the air conditioner 100 of the embodiment of the utility model, the side surface of the first volute tongue 2 facing the air guide channel 13 is tangent to the main air guide surface 14, and the first volute tongue 2 is provided with the convex first air guide curved surface 21 at the end far away from the main air guide surface 14, so that the air flow resistance at the air inlet end of the air guide channel 13 is reduced, the air flow noise in the air conditioner 1 is reduced, the tone quality of the air conditioner 100 is improved, the air quantity is increased, and the air flow efficiency in the air guide channel 13 is increased.

In some embodiments, the first wind guiding curved surface 21 extends along a first direction, and the first direction intersects with the inflow direction of the inflow end, for example, the first direction may be disposed perpendicular to the inflow direction of the inflow end. Specifically, as shown in fig. 1, the inflow direction of the inflow end of the air guiding channel 13 is from top to bottom into the air guiding channel 13, wherein the first air guiding curved surface 21 extends in the left-right direction of the air conditioner 100, that is, the first air guiding curved surface 21 extends from the left end to the right end in the machine body 1, that is, the length direction of the first volute tongue 2, as shown in fig. 5, 8 and the up-down direction in fig. 11 and 12.

Therefore, when the air flow enters the air guide flow channel 13, the air flow can be guided by the first air guide curved surface 21 at each position of the first volute tongue 2 along the length direction, so that the air flow enters the air guide flow channel 13 more smoothly, and the overall air flow resistance can be reduced.

The first curved airflow guiding surface 21 is provided with a guiding groove 22 extending along the inflow direction of the inflow end, as shown in fig. 6-7, the guiding groove 22 is disposed on the first curved airflow guiding surface 21, and extends from one side of the first volute tongue 2 facing the outside of the airflow guiding channel 13 to one side of the first volute tongue 2 facing the inside of the airflow guiding channel 13, and the guiding groove 22 can enable the airflow outside the airflow guiding channel 13 to smoothly enter the airflow guiding channel 13, i.e. the airflow entering at the air inlet 11 not only can enter the airflow guiding channel 13 from the forward angle of the inflow end of the airflow guiding channel 13, but also can enter the airflow guiding channel 13 from the lateral angle of the inflow end of the airflow guiding channel 13 from the first curved airflow guiding surface 21 and the guiding groove 22, thereby not only increasing the airflow guiding angle, but also increasing the inflow width of the airflow guiding channel 13, and being beneficial to increasing the airflow guiding amount and improving the airflow efficiency of the air conditioner 100.

In some embodiments, as shown in fig. 5-15, the plurality of guiding grooves 22 are multiple, and the plurality of guiding grooves 22 are distributed at intervals along the first direction on the first wind guiding curved surface 21, where the first wind guiding curved surface 21 extends along the first direction, that is, the first direction is the length direction of the first wind guiding curved surface 21, in other words, the plurality of guiding grooves 22 are distributed at intervals along the length direction of the first wind guiding curved surface 21, so that airflow can be guided by the guiding grooves 22 at multiple positions along the length direction of the first wind guiding curved surface 21.

It can be understood that the first air guiding curved surface 21 extends in the first direction and is disposed in the machine body 1, that is, each position of the air conditioner 100 along the left-right direction is guided by the first air guiding curved surface 21, and the plurality of positions of the first air guiding curved surface 21 along the first direction are provided with the guiding grooves 22, so that the guiding effect and the airflow noise of each position of the air conditioner 100 along the left-right direction can be effectively improved, and therefore, the users located in front of the left side, right side and front of the air conditioner 100 can feel relatively balanced air conditioning tone quality and airflow effect, and the user experience is greatly improved.

In some embodiments, the radius of the volute tongue of the first wind-guiding curved surface 21 is gradually changed along the first direction, that is, the first wind-guiding curved surface 21 is a circular arc surface, and the radius of the volute tongue of the first wind-guiding curved surface 21 is gradually changed, that is, the radius of the volute tongue may gradually increase from the first end 211 to the second end 212 of the first wind-guiding curved surface 21, or may gradually decrease from the first end 211 to the second end 212 of the first wind-guiding curved surface 21, so as to achieve the gradual wind guiding effect.

It should be noted that, when the airflow is guided into the airflow guiding channel 13 by the first airflow guiding curved surface 21, the radius of the volute tongue is gradually changed, so that the airflow guiding direction of each position of the first airflow guiding curved surface 21 along the first direction is designed differently, specifically, as shown in fig. 5-10, the radius of the volute tongue at the upper end of the first airflow guiding curved surface 21 is larger than the radius of the volute tongue at the lower end, so that the airflow guided through the first airflow guiding curved surface 21 can enter the airflow guiding channel 13 from different positions in the first direction at different angles, so that the angle of the airflow entering the airflow guiding channel 13 to impact the inner wall surface of the airflow guiding channel 13 is also different, and further, the impact positions are relatively dispersed, which is beneficial to reducing the impact noise of the airflow entering the airflow guiding channel 13, reducing the noise state in the machine body 1, and improving the user experience.

Specifically, as shown in fig. 6 and 9, the radius of the volute tongue at the upper end of the first wind-guiding curved surface 21 is larger, that is, the wind guiding direction at the upper end is more gentle, and the radius of the volute tongue at the lower end of the first wind-guiding curved surface 21 is smaller, that is, the change amplitude of the wind guiding direction at the lower end is relatively larger, so that gradual setting of the wind guiding direction can be realized.

In some embodiments, the first wind guiding curved surface 21 has a volute tongue radius R1 at the first end 211 and a volute tongue radius R2 at the second end 212 along the first direction, and the length of the drainage groove 22 at the first end 211 of the first wind guiding curved surface 21 along the first direction is W1 and the length of the drainage groove 22 at the second end 212 is W2 among the plurality of drainage grooves 22. Wherein, satisfy: 1 < w1/R1 < 3, for example, w1/R1 is 1.5, 2.5, or other values within the above range, 1 < w2/R2 < 3, for example, w2/R2 is 1.6, 2.4, or other values within the above range, that is, the volute tongue radius of the first end 211 of the first wind guiding surface 21 is smaller than the length of the guiding groove 22 at the corresponding position, and the volute tongue radius of the second end 212 of the first wind guiding surface 21 is also smaller than the length of the guiding groove 22 at the corresponding position, in other words, both the volute tongue radius and the guiding groove 22 of the first wind guiding surface 21 along the first direction may be set to be of gradual design.

Therefore, the airflow direction and the airflow quantity of the airflow led into the air guide channel 13 from each position of the first air guide curved surface 21 along the first direction also gradually change, so that the concentrated impact of the air inlet airflow on the inner wall of the air guide channel 13 can be effectively avoided, and the noise of the airflow in the machine body 1 can be reduced.

Specifically, as shown in fig. 3, an arc surface having a radius R1 is formed at the first end 211 of the first volute tongue 2, as shown in fig. 4, an arc surface having a radius R2 is formed at the second end 212 of the first volute tongue 2, the length of the drainage groove 22 is a dimension along a direction parallel to the inner side surface of the first volute tongue 2, as shown in fig. 3 and 4, the length of the drainage groove 22 at the first end 211 of the first wind guiding curved surface 21 is W1, and the length of the drainage groove 22 at the second end 212 of the first wind guiding curved surface 21 is W2.

In some embodiments, the first wind guiding curved surface 21 has a first end 211 with a volute tongue radius R1 and a second end 212 with a volute tongue radius R2 along the first direction, and the maximum depth of the drainage groove 22 is h, and satisfies: r1 is smaller than h and smaller than R2, namely the volute tongue radius of the first end 211 of the first wind guiding curved surface 21 along the first direction is smaller than the depth of the drainage groove 22 at the corresponding position, and the volute tongue radius of the second end 212 of the first wind guiding curved surface 21 along the first direction is larger than R2 at the corresponding position.

Specifically, as shown in fig. 3 and 4, the depth of the drainage groove 22 is the dimension of the drainage groove 22 in the direction perpendicular to the first volute tongue 2, i.e., h shown in the drawing. It should be noted that, as shown in fig. 3 and fig. 4, the depth of the guiding groove 22 at the first end 211 and the depth of the guiding groove 22 at the second end 212 of the first wind guiding curved surface 21 along the first direction are relatively uniform, that is, do not change significantly with the change of the radius of the volute tongue, so that the air flow in the machine body 1 can be guided into the wind guiding channel 13 through the guiding groove 22 with relatively uniform depth, that is, under the condition of ensuring the air guiding quantity at each position in the length direction of the first wind guiding curved surface 21, the differentiation of the wind guiding effect can be realized by using the gradual change of the curved surface, and not only the air feeding quantity can be ensured, but also the air flow noise can be reduced.

In other embodiments, the depth of the plurality of diversion trenches 22 is configured to be the same, as shown in fig. 11-15, the first wind guiding curved surface 21 is convexly disposed at the first volute tongue 2, and the diversion trenches 22 are penetrated along the thickness direction of the first volute tongue 2, so that part of the airflow outside the first volute tongue 2 can flow from the diversion trenches 22 towards the inside of the first volute tongue 2, further more airflow enters the wind guiding flow channel 13, which is beneficial to increasing the airflow in the wind guiding flow channel 13, and the depths of the diversion trenches 22 are the same, so that relatively balanced airflow guiding effect can be realized at each position of the first wind guiding curved surface 21 along the length direction, and the overall airflow of the wind guiding flow channel 13 is ensured.

And/or, the widths of the plurality of diversion trenches 22 are configured to be the same, that is, the widths of the diversion trenches 22 can also be configured to be the same, so that the diversion effect at each diversion trench 22 is relatively balanced, and the overall air flow of the air guide flow channel 13 is ensured. Specifically, as shown in fig. 12 to 15, the depth and width of each of the diversion trenches 22 are set to be the same, so that the diversion effect of the air-guide duct 13 can be effectively enhanced, and the air flow rate can be increased.

In still further embodiments, the cross-section of the drainage groove 22 is configured in a flared shape, as shown in fig. 5, and the cross-section of the drainage groove 22 is configured in a U shape, so that the drainage groove 22 gradually increases from the inner bottom wall along the opening direction, so that the flow guiding area of the drainage groove 22 is larger, which is beneficial to increasing the air flow.

In some embodiments, the draft trough 22 has a top width L1 and a bottom width L2, and the draft trough 22 has a depth W3, and satisfies: l2 is less than W3 and less than L1. As shown in fig. 13 and 15, that is, in this embodiment, the depth of the drainage groove 22 is set to be greater than the bottom width of the drainage groove 22 and greater than the top width of the drainage groove 22, so that the drainage groove 22 is integrally constructed as an isosceles trapezoid groove, the depth of the drainage groove 22 on the first volute tongue 2 is reduced, the structural strength of the first volute tongue 2 is ensured, the drainage width of the drainage groove 22 is ensured, and the airflow introduction amount is improved.

And, in some embodiments, as shown in fig. 3-4 and fig. 6-7, the first wind guiding curved surface 21 is disposed to be at least partially protruding on a side of the first volute tongue 2 facing the outside of the wind guiding channel 13, that is, the first wind guiding curved surface 21 extends from the inner side of the first volute tongue 2 to the outer side of the first volute tongue 2, and extends to the outer side of the first volute tongue 2 to be partially protruding, so that the outer side surface of the first volute tongue 2 can also realize curved wind guiding, and the air flow outside the wind guiding channel 13 is facilitated to enter into the wind guiding channel 13 along the first volute tongue 2; meanwhile, by the arrangement, the depth of the diversion trench 22 is increased, as shown in fig. 3-4 and fig. 6-7, most of the diversion trench 22 is positioned outside the first volute tongue 2, so that a large amount of air flow outside the first volute tongue 2 can enter the diversion trench 22, and the air flow guiding amount is effectively increased from the diversion trench 22 into the air guiding flow channel 13.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., 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 utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. An air conditioner, comprising:

The air inlet and the air outlet are arranged on the machine body, and the air inlet and the air outlet are communicated with an air guide flow channel between the air inlet and the air outlet;

the main body wind guide surface positioned at the downstream of the first volute tongue is formed in the wind guide flow passage, the side surface of the first volute tongue, which faces the wind guide flow passage, is tangent to the main body wind guide surface, and a convex first wind guide curved surface is formed at one end of the first volute tongue, which is far away from the main body wind guide surface.

2. The air conditioner of claim 1, wherein the first wind-guiding curved surface extends along a first direction, the first direction intersects the inflow direction of the inflow end, and the first wind-guiding curved surface is provided with a drainage groove extending along the inflow direction of the inflow end.

3. The air conditioner of claim 2, wherein the plurality of drainage grooves are spaced apart along the first direction and are distributed on the first wind guiding curved surface.

4. An air conditioner according to claim 3 wherein the radius of the volute tongue of the first air guiding surface is configured to taper in the first direction.

5. The air conditioner of claim 4, wherein a first end of the first wind-guiding curved surface along the first direction has a volute tongue radius R1 and a second end has a volute tongue radius R2, and a length of a drainage groove located at the first wind-guiding curved surface along the first direction among the plurality of drainage grooves is W1 and a length of a drainage groove located at the second end is W2;

wherein, satisfy: 1 < w1/R1 < 3,1 < w2/R2 < 3.

6. The air conditioner of claim 4, wherein a first end of the first curved air guiding surface along the first direction has a volute tongue radius R1 and a second end has a volute tongue radius R2, the maximum depth of the drainage groove is h, and the following is satisfied: r1 is less than h and less than R2.

7. The air conditioner of claim 3, wherein the depth of the plurality of drainage grooves is configured to be the same;

And/or the widths of the plurality of drainage grooves are configured to be the same.

8. The air conditioner of claim 7, wherein the cross-section of the drainage groove is configured in a flared shape.

9. The air conditioner of claim 8, wherein the drainage groove has a top width L1 and a bottom width L2, and the drainage groove has a depth W3, and the following are satisfied: l2 is less than W3 and less than L1.

10. The air conditioner according to claim 1, wherein the first air guiding curved surface is provided to be at least partially protruded at a side of the first scroll part facing the outside of the air guiding flow passage.