CN210801396U - Fan subassembly, machine and air conditioner in air conditioning - Google Patents

Abstract

The utility model discloses a machine and air conditioner in fan subassembly, air conditioning, wherein, this fan subassembly, include: the centrifugal fan comprises a volute component, a centrifugal wind wheel and an air outlet grille, wherein the volute component is provided with a volute and a volute tongue; the centrifugal wind wheel is arranged in the volute assembly; the air-out grid is installed the spiral case with between the spiral tongue, the air-out grid includes first grid portion and second grid portion, first grid portion by the spiral case orientation the spiral tongue extends, the one end of second grid portion is connected the extension end of first grid portion, and the orientation the spiral tongue extends, first grid portion with second grid portion is the contained angle setting, second grid portion is located the orientation of first grid portion one side of centrifugal wind wheel. The utility model discloses technical scheme has the characteristics that the air output is big.

Description

Fan assemblies, air conditioning indoor units and air conditioners

technical field

The utility model relates to the field of fans, in particular to a fan assembly, an air conditioner indoor unit and an air conditioner.

Background technique

Centrifugal fan is a fan that enters air along the axial direction of the wind wheel and discharges air along the side of the wind wheel. In order to ensure the safety of the centrifugal fan when it is working, the existing centrifugal fan will set an outlet grille at the air outlet of the centrifugal fan to prevent objects from falling into the centrifugal fan. The loss of the outlet air is large, and the air volume of the outlet air is small.

Utility model content

The main purpose of the utility model is to propose a fan assembly, which aims to increase the air output of the centrifugal fan.

In order to achieve the above purpose, the fan assembly proposed by the present utility model includes:

A volute assembly having a volute and a volute tongue;

a centrifugal fan, disposed in the volute assembly; and,

an outlet grille, installed between the volute and the volute tongue, the outlet grille includes a first grille part and a second grille part, the first grille part is formed by the volute Extending toward the volute tongue, one end of the second grille portion is connected to the extending end of the first grille portion, and extends toward the volute tongue, the first grille portion and the second grille The parts are arranged at an included angle, and the second grill part is located on the side of the first grill part facing the centrifugal wind wheel.

Optionally, the included angle between the second grill portion and the volute tongue is 45°˜135°.

Optionally, the included angle between the second grill portion and the volute tongue is 80°˜100°.

Optionally, an air outlet is formed at the end of the volute and the volute tongue, and the angle between the first grille portion and the plane where the air outlet is located is 0°˜5°.

Optionally, the grille holes on the second grille portion are disposed facing the air outlet.

Optionally, the volute includes an air outlet plate opposite to the volute tongue, the first grille portion is mounted on the air outlet plate, and the length of the first grille portion is less than or equal to the length of the The minimum distance from the volute tongue to the air outlet plate.

Optionally, the grating holes on the second grating portion extend along the extending direction of the volute tongue.

Optionally, the grille holes of the outlet grille are hexagonal holes.

Optionally, the side length of the grid holes is 1.5mm˜20mm.

The utility model also proposes an air-conditioning indoor unit, which includes the above-mentioned fan assembly.

The utility model also proposes an air conditioner, which includes the above-mentioned fan assembly.

The outlet grille of a conventional volute is usually in the shape of a straight plate, extending from the volute to the volute tongue. Angle setting, the second grille part is arranged on the side of the first grille part close to the centrifugal fan wheel, so that the extension length of the second grille is reduced, compared with the conventional outlet grille Therefore, the length of the outlet grille described in this embodiment is smaller, which can effectively reduce the loss of the outlet air from the centrifugal wind wheel at the outlet grille, thereby increasing the air outlet volume of the fan assembly.

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained based on the structures shown in these drawings without any creative effort.

1 is a schematic structural diagram of an embodiment of the fan assembly of the present invention;

Fig. 2 is the axonometric view of the partial structure of the fan assembly in Fig. 1;

Fig. 3 is the top view of the partial structure of the fan assembly in Fig. 1;

Fig. 4 is the structural representation of the outlet grille of the fan assembly in Fig. 1;

5 is a schematic structural diagram of an air outlet structure of an embodiment of the fan assembly of the present invention;

FIG. 6 is a schematic structural diagram of an embodiment of the air conditioner indoor unit of the present invention.

Description of reference numbers:

label name label name 100 volute assembly 110 volute 111 air outlet 120 snail tongue 200 outlet grille 210 first grille 220 second grille

The realization, functional characteristics and advantages of the purpose of the present utility model will be further described with reference to the accompanying drawings in conjunction with the embodiments.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, not all of them. Example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

It should be noted that if there are directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention, the directional indications are only used to explain a certain posture (such as the accompanying drawings). When the relative positional relationship, movement situation, etc. between the various components shown below), if the specific posture changes, the directional indication also changes accordingly.

In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for the purpose of description, and should not be construed as instructions or Implicit their relative importance or implicitly indicate the number of technical features indicated. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In addition, if the meaning of "and/or" appears in the whole text, it includes three parallel schemes, taking "A and/or B" as an example, including scheme A, or scheme B, or the scheme that A and B satisfy at the same time . In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of such technical solutions does not exist. , is not within the scope of protection required by the present utility model.

The utility model provides a fan assembly.

In the embodiment of the present invention, as shown in FIGS. 1 to 4 , the fan assembly includes: a volute assembly 100 , a centrifugal fan wheel and an outlet grille 200 , and the volute assembly 100 has a volute 110 and a volute tongue 120; the centrifugal fan is arranged in the volute assembly 100; the outlet grill 200 is installed between the volute 110 and the volute tongue 120, and the outlet grill 200 includes a A grille part 210 and a second grille part 220, the first grille part 210 extends from the volute 110 towards the volute tongue 120, and one end of the second grille part 220 is connected to the first grille part 220 The extension end of the grille part 210 extends toward the volute tongue 120 , the first grille part 210 and the second grille part 220 are arranged at an included angle, and the second grille part 220 is located in the The side of the first grill part 210 facing the centrifugal wind wheel. The fan assembly is a centrifugal fan assembly, and the volute assembly 100 includes a volute 110, a volute tongue 120 and two side plates, the two side plates are arranged opposite to each other, and the side plates are connected to the volute 110 and the volute tongue 120, the volute 110, the volute tongue 120 and the side panels form an air duct, and the air inlet of the volute assembly 100 is arranged on the side panels. The volute 110 includes an air outlet plate 111 disposed opposite to the volute tongue 120 , and the air outlet plate 111 and the volute tongue 120 are arranged at an angle, so that the air outlet of the volute 110 is flaring. Specifically, the air outlet plate 111 and the volute tongue 120 both extend along the tangential direction of the edge of the centrifugal wind wheel. In the rotation direction of the centrifugal wind wheel, the air outlet plate 111 is located in the upstream of the volute tongue 120 .

The outlet grille 200 of the conventional volute 110 is usually in the shape of a straight plate and extends from the volute 110 to the volute tongue 120. A grille part 210 is arranged at an included angle, and the second grille part 220 is arranged on the side of the first grille part 210 close to the centrifugal wind wheel, so that the extension length of the second grille is reduced, Compared with the conventional outlet grille 200, the length of the outlet grille 200 described in this embodiment is smaller, which can effectively reduce the loss of the centrifugal fan rotor at the outlet grille 200, thereby increasing the overall Describe the air output of the fan assembly.

Further, in this embodiment, as shown in FIG. 1 , the included angle between the second grid portion 220 and the volute tongue 120 is 45°˜135°. When the second grid portion 220 and the volute tongue 120 are perpendicular to each other, the length of the second grid portion 220 is the smallest, and the included angle between the second grid portion 220 and the volute tongue 120 is over If the length is too large or too small, the length of the second grille portion 220 will be too large, which will result in a large loss of air volume at the outlet grille 200 when the fan assembly blows out. When the included angle between the second grille portion 220 and the volute tongue 120 is 45°˜135°, the length of the second grille portion 220 is small, so that the total length of the outlet grille 200 is small, so as to increase the air output and wind speed of the fan assembly.

Further, in this embodiment, as shown in FIG. 1 , the included angle between the second grille portion 220 and the volute tongue 120 is 80°˜100°. At this time, the second grille portion 220 and the The volute tongue 120 is vertical or approximately vertical, the length of the second grille portion 220 is small, and the total length of the air outlet grille 200 is small, so that the air volume loss caused by the air outlet grille 200 is small, and the Increase the outlet air volume and outlet air speed of the fan assembly.

Further, in this embodiment, as shown in FIG. 1 and FIG. 2 , the ends of the volute 110 and the volute tongue 120 form an air outlet, and the first grille portion 210 and the air outlet are located on the plane The included angle is 0°～5°. When the included angle between the first grill portion 210 and the plane where the air outlet is located is too large, the length of the first grill portion 210 is likely to be too long. The plane on which the air outlet is located is arranged in parallel or approximately parallel, which is beneficial to make the length of the first grille portion 210 small, thereby reducing the loss of air volume caused by the first grille portion 210 .

Further, in this embodiment, as shown in FIG. 1 , the volute 110 includes an air outlet plate 111 opposite to the volute tongue 120 , and the first grille portion 210 is installed on the air outlet plate 111, the length of the first grill part 210 is less than or equal to the minimum distance from the volute tongue 120 to the air outlet plate 111 . Specifically, in addition to preventing objects from falling into the volute 110 and preventing the staff from accidentally touching the centrifugal fan, the air outlet grill 200 also has the function of guiding the direction of the air. The first grill part 210 can guide the air outlet direction of the airflow close to the air outlet plate 111 , and the second grill part 220 can guide the airflow direction of the airflow close to the volute tongue 120 . The distance from the end of the volute tongue 120 close to the air outlet to the air outlet plate 111 is greater than the distance from the end of the volute tongue 120 close to the centrifugal wind wheel to the air outlet plate 111 . The distance from the end of the volute tongue 120 close to the distance from the centrifugal wind wheel to the air outlet plate 111 is the minimum distance from the volute tongue 120 to the air outlet plate 111 . The length of the first grille portion 210 is less than or equal to the minimum distance, which is beneficial to prevent the first grille portion 210 from interfering with the airflow direction in the air duct close to the volute tongue 120, and on the other hand to control the first grille The length of the first grille part 210 is prevented from being too long, so that the second grille part 220 has a sufficient length to guide the airflow direction in the air duct near the volute tongue 120, and is also conducive to reducing the The length of the air outlet grille 200 is used to increase the air outlet volume and air outlet speed of the fan assembly.

Further, in this embodiment, as shown in FIGS. 1 to 4 , the grill holes on the second grill part 220 are disposed facing the air outlet. When the centrifugal fan is blowing out, the air flow at the part of the air outlet of the fan close to the volute tongue 120 is blown along the extending direction of the volute tongue 120, which is easy to cause uneven air output from the air outlet, resulting in a large internal loss of the fan assembly body. The grill holes of the second grill part 220 can guide the airflow in the air duct close to the volute tongue 120 to be directed towards the air outlet. The first grill part 210 and the second grill part 220 Work together, so that the air outlet is blowing out the air. Compared with the conventional grille, the installation position of the second grille portion 220 on the volute tongue 120 in this embodiment is closer to the centrifugal wind wheel, that is to say, the portion guided by the conventional grille close to the volute tongue 120 The airflow at the second grid portion 220 is less guided by the volute tongue 120, and the airflow direction is smaller, and the airflow is more easily guided. . On the other hand, in this embodiment, the second grille portion 220 is inclined and the projection of the air outlet grille 200 on the plane where the air outlet is located is further away from the volute tongue 120, which can reduce the air outlet. The air flow concentrated to the side of the volute tongue 120 makes the air output from the air outlet more uniform and reduces the internal loss of the fan assembly body.

The second grid portion 220 described in this embodiment is not limited to the above technical solutions. In other embodiments, as shown in FIG. 5 , the grid holes on the second grid portion may be along the scroll. The extension direction of the tongue extends. The second grille is used to guide the airflow passing through the second grille to be blown along the extension direction of the volute tongue, which is beneficial to make the air supply range of the fan assembly wide and the air output more stable.

Further, in this embodiment, as shown in FIG. 3 , the grille holes of the air outlet grille 200 are hexagonal holes, and the air outlet grille 200 has the characteristics of stable structure and large air outlet area. The grille holes of the outlet grille 200 in this embodiment are not limited to the above technical solutions. In other embodiments, the grille holes of the outlet grille may be circular, or the outlet grille may be circular. The grille holes of the air grille are rectangular, and it may also be that the grille holes of the air outlet grille are triangular.

Further, in this embodiment, the side lengths of the grid holes are 1.5 mm˜20 mm. When the side length of the grille holes is too small, the holes of the air outlet grille 200 are too dense, which will reduce the air outlet area of the air outlet grille 200, thereby causing the loss of the air output of the fan assembly. When the side length of the grille hole is too large, the air guide effect of the outlet grille 200 is poor, and objects are easy to fall into the worm The protective effect inside the shell assembly 100 is poor. The side length of the grille holes in this embodiment is 1.5mm to 20mm, which has the characteristics of good air guiding effect, large air output and good protection effect.

Further, in this embodiment, as shown in FIG. 1 , the first grille portion 210 and the second grille portion 220 are both straight grilles, which are convenient for the manufacture and processing of the outlet grille 200 . . Of course, the first grating portion 210 and the second grating portion 220 in this embodiment are not limited to the above technical solutions, and in other embodiments, the first grating portion and the second grating portion 220 may also be The second grid portion is an arc grid, or the first grid portion and the second grid portion are curved grids. Specifically, in this embodiment, the volute assembly is formed by splicing a volute seat and a volute cover, the volute seat includes one of the side plates, and the volute cover includes the other side plate.

The utility model also proposes an air conditioner indoor unit. As shown in FIG. 6 , the air conditioner indoor unit includes a fan assembly. The specific structure of the subject 1 refers to the above-mentioned embodiment, because the air conditioner indoor unit adopts all the technologies of the above-mentioned embodiments. Therefore, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, and will not be repeated here. Specifically, the air conditioner indoor unit includes a casing, the casing is formed with an air outlet, an air inlet, and an air duct connecting the air outlet and the air inlet, and the volute assembly 100 of the fan assembly has the The air inlet, the volute assembly 100 is used to form part of the air duct, the air outlet of the fan assembly is arranged upward, and an axial flow fan is also arranged in the air duct, and the axial flow fan is arranged in the fan assembly Above, the axial flow fan cooperates with the fan assembly to discharge air, and has the characteristics of large air volume and wind speed.

The utility model also proposes an air conditioner, which includes a fan assembly. The specific structure of the fan assembly refers to the above-mentioned embodiments. Since the air conditioner adopts all the technical solutions of all the above-mentioned embodiments, it has at least the All the beneficial effects brought by the technical solution will not be repeated here. Specifically, the air conditioner may be an integrated unit or a separate unit. Specifically, the air conditioner may include an air conditioner outdoor unit and an air conditioner indoor unit. The air conditioner outdoor unit is connected to the air conditioner indoor unit through a refrigerant pipe. The air conditioner indoor unit includes the fan assembly.

The above are only optional embodiments of the present utility model, and are not intended to limit the scope of the present utility model patent. Under the inventive concept of the present utility model, the equivalent structure transformations made by using the contents of the present utility model description and accompanying drawings, Or directly/indirectly applied in other related technical fields are included in the scope of patent protection of the present invention.

Claims (11)

1. a fan assembly, is characterized in that, comprises: A volute assembly having a volute and a volute tongue; a centrifugal fan, disposed in the volute assembly; and, an outlet grille, installed between the volute and the volute tongue, the outlet grille includes a first grille part and a second grille part, the first grille part is formed by the volute Extending toward the volute tongue, one end of the second grille portion is connected to the extending end of the first grille portion, and extends toward the volute tongue, the first grille portion and the second grille The parts are arranged at an included angle, and the second grill part is located on the side of the first grill part facing the centrifugal wind wheel. 2 . The fan assembly according to claim 1 , wherein the included angle between the second grille portion and the volute tongue is 45°˜135°. 3 . 3 . The fan assembly according to claim 2 , wherein the included angle between the second grille portion and the volute tongue is 80°˜100°. 4 . 4 . The fan assembly according to claim 1 , wherein the end of the volute and the volute tongue forms an air outlet, and the included angle between the first grille portion and the plane where the air outlet is located is 0. 5 . °～5°. 5 . The fan assembly according to claim 4 , wherein the grill holes on the second grill portion are disposed facing the air outlet. 6 . 6 . The fan assembly according to claim 4 , wherein the volute comprises an air outlet plate opposite to the volute tongue, the first grille portion is mounted on the air outlet plate, and the The length of the first grille portion is less than or equal to the minimum distance from the volute tongue to the air outlet plate. 7 . The fan assembly of claim 1 , wherein the grille holes on the second grille portion extend along the extending direction of the volute tongue. 8 . 8. The fan assembly according to any one of claims 1 to 7, wherein the grille holes of the outlet grille are hexagonal holes. 9 . The fan assembly according to claim 8 , wherein the side length of the grid holes is 1.5 mm˜20 mm. 10 . 10. An air conditioner indoor unit, comprising the fan assembly according to any one of claims 1 to 9. 11. An air conditioner, characterized by comprising the fan assembly according to any one of claims 1 to 9.

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