CN210859339U - Volute and air conditioner with same - Google Patents

Abstract

The utility model discloses a spiral case and have air conditioner of this spiral case, spiral case include the spiral case main part and with the spiral case bulk phase spiral tongue that is connected, the spiral case main part is equipped with the air outlet, spiral tongue surface is equipped with a plurality of beads, form between two adjacent beads that the confession gas passes through, and can prolong the wind-guiding groove of air current flow path. So set up, optimize the spiral case structure, add the wind-guiding groove on the spiral shell tongue surface, the air current moves along the wind-guiding groove, has increased the flow distance when gaseous flow passes through the spiral shell tongue, has prolonged the air current flow stroke in the spiral case is inside, can be at the in-process noise reduction that flows, and the wind-guiding groove is equivalent to the indirect width that has increased the spiral case air outlet, has effectively reduced the aerodynamic noise that the fan blade produced when rotating, has improved user experience, has solved the great problem of noise that the air conditioner produced among the prior art.

Description

Volute and air conditioner with same

Technical Field

The utility model relates to an air conditioning technology field, more specifically say, relate to a spiral case and have air conditioner of this spiral case.

Background

With the improvement of living standard and the rising of house price, people tend to simplify the space utilization, an air conditioner serving as an electric appliance for adjusting the space environment temperature becomes a necessary electric appliance for families, and particularly, a more space-saving air duct machine is more popular among more families. The existing air duct machine comprises a volute and a fan blade arranged in the volute, and when the fan blade rotates, air enters the volute under the action of the fan blade and flows out of an air outlet of the volute. However, when air flows in the volute, the air continuously and alternately appears on the surface of the rotating fan blade, and great pneumatic noise is caused, so that the noise problem of the air duct machine is serious, and the user experience is poor. Therefore, how to solve the problem of loud noise generated by the air conditioner in the prior art becomes an important technical problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a spiral case and have air conditioner of this spiral case to solve the great problem of noise that prior art air conditioner produced.

The utility model aims at realizing through the following technical scheme:

the utility model provides a pair of spiral case, including the spiral case main part and with the spiral case tongue that the spiral case main part is connected, the spiral case main part is equipped with the air outlet, the surface of spiral case tongue is equipped with a plurality of beads, adjacent two form between the bead supply gas pass through, and can prolong the wind-guiding groove of air current flow path.

Preferably, the air guide groove is an oblique air guide groove.

Preferably, at least two groups of the wind guide grooves with different inclination directions are formed on the surface of the volute tongue, and each group comprises a plurality of the wind guide grooves.

Preferably, the extending direction of the wind guide groove on the volute tongue is intersected with the wind outlet direction of the wind outlet to form an acute included angle a of 15-30 degrees.

Preferably, the acute included angle a is 15 degrees.

Preferably, the length of each rib is 15 mm-20 mm; and/or the height of each rib is 0.5 mm-1 mm; and/or the distance between two adjacent convex ridges is 0.5 mm-1.5 mm.

Preferably, each of said ribs is 19 mm in length; and/or the height of each rib is 0.5 mm; and/or the distance between two adjacent convex ridges is 1 mm.

Preferably, the surface of the volute tongue is a curved surface, and the contour of the top surface of each convex ridge is consistent with the contour of the surface of the volute tongue.

Preferably, the volute body comprises an upper volute and a lower volute detachably connected with the upper volute, and the volute tongue is connected with the lower volute.

Preferably, the volute tongue and each rib are of an integrally formed structure.

The utility model also provides an air conditioner, include as above arbitrary the spiral case.

Preferably, the air conditioner is a ducted air conditioner.

The utility model provides an among the technical scheme, a spiral case includes spiral case main part and the spiral case tongue of being connected with the spiral case main part, and the spiral case main part is equipped with the air outlet, and spiral case tongue surface is equipped with a plurality of beads, forms between two adjacent beads to supply gaseous through, and can prolong the wind-guiding groove of air current flow path. So set up, optimize the spiral case structure, add the wind-guiding groove on the spiral tongue surface, the air current moves along the wind-guiding groove, the flow distance when having increased gas flow through the spiral tongue, flow the stroke in the spiral case inside has prolonged the air current equivalently, can be at the in-process noise reduction that flows, the wind-guiding groove is equivalent to the width that has indirectly increased the spiral case air outlet, the aerodynamic noise who produces when effectively having reduced the fan blade rotation has improved user experience, the great problem of noise of air conditioner production among the prior art has been solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a volute according to an embodiment of the present invention;

FIG. 2 is a perspective view of a volute according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a lower volute according to an embodiment of the present invention;

FIG. 4 is an enlarged view of a portion A of FIG. 2;

fig. 5 is a partially enlarged view of fig. 3 at B.

In fig. 1-5:

the volute comprises a volute body-1, an upper volute-11, a lower volute-12, a volute tongue-2, an air outlet-3, a convex rib-4, a top surface-41 and an air guide groove-5.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

This embodiment provides a spiral case and has air conditioner of this spiral case, has solved the great problem of noise that the air conditioner produced among the prior art.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. The embodiments described below do not limit the scope of the invention described in the claims. Further, the entire contents of the configurations shown in the following embodiments are not limited to those necessary as a solution of the invention described in the claims.

Referring to fig. 1-5, the volute provided by the present embodiment includes a volute body 1 and a volute tongue 2 connected to the volute body 1, wherein the volute tongue 2 can be integrally formed with the volute body 1. As shown in fig. 2, the volute body 1 is provided with an air outlet 3, and a direction indicated by an arrow in fig. 2 is an air outlet direction of the air outlet 3, that is, as shown in fig. 1, when the air outlet 3 is directly faced, air blows in a head-on direction. The surface of the volute tongue 2 is provided with a plurality of convex ribs 4, and an air guide groove 5 which is used for air to pass through and can prolong the flow path of the air flow is formed between every two adjacent convex ribs 4. The volute is optimized in structure, the air guide groove is additionally formed in the surface of the volute tongue, blown air moves along the air guide groove, the flowing distance of air flowing through the volute tongue is increased, the airflow flowing stroke is prolonged in the volute, noise can be reduced in the flowing process, the air guide groove is equivalent to indirectly increasing the width of an air outlet of the volute, pneumatic noise generated when the fan blades rotate is effectively reduced, user experience is improved, and the problem that noise generated by an air conditioner in the prior art is large is solved.

In the present embodiment, the air guiding groove 5 is an oblique air guiding groove. As shown in fig. 3 and 5, the direction of the arrow in the figure is the air outlet direction of the air outlet 3, and the air guiding groove 5 is obliquely arranged and can guide the air flowing to the air outlet 3 to flow along the oblique air guiding groove. The spiral case is optimized, the inclined air guide groove is additionally formed in the surface of the volute tongue, namely the opening degree of the outlet of the volute is increased, blown air moves along the inclined air guide groove, the wind resistance is effectively reduced, the flowing distance of air flowing through the volute tongue is increased, the airflow flowing stroke is prolonged in the volute, the noise can be reduced in the flowing process, the inclined air guide groove is equivalent to indirectly increasing the width of the air outlet of the volute, and the pneumatic noise generated when the fan blades rotate is effectively reduced. Of course, in other embodiments, the air guiding groove 5 may also have a curved shape such as an "S" shaped curve, an arc shaped curve, or a broken line shape, etc. in order to increase the air flow distance. The specific arrangement of the air guide groove 5 is not limited to this, and it is necessary to have a function of extending the gas flow path so as to reduce noise generated by the air conditioner.

As shown in fig. 3, at least two sets of wind-guiding grooves 5 with different inclination directions are formed on the surface of the volute tongue 2, and each set includes a plurality of wind-guiding grooves 5. Fig. 3 shows two groups of air guide grooves 5 with different inclination directions, which are respectively inclined towards the left and right sides in the figure, the two groups of air guide grooves 5 are symmetrically distributed on the surface of the volute tongue 2, and the air guide grooves 5 in each group are arranged in parallel and are uniformly distributed. Carry out the optimal design to the volute tongue structure like this, can obviously change the unicity of air current flow direction, the air current that reachs the air outlet can control two directions and flow in the past, scatter to both sides, noise reduction effect is more obvious, and the wind that blows out is after motion and the contact of spiral case side to both sides, because the reaction of power meets at the intermediate position department at last and forms the turbulent flow that speed is lower, flow out and accomplish the heat transfer through the heat exchanger behind the spiral case, can reduce aerodynamic noise of air like this, thereby the noise of air conditioner has been reduced effectively, play the noise reduction effect, user experience has been improved.

In the embodiment, the extending direction of the air guiding groove 5 on the volute tongue 2 and the air outlet direction of the air outlet 3 intersect to form an acute angle a of 15-30 degrees. Specifically, as shown in fig. 5, the direction indicated by the arrow in the figure is the air outlet direction of the air outlet 3, and the vertical direction in the figure is the extending direction of the air guiding groove 5 on the volute tongue 2, that is, the acute angle included angle b formed by the extending direction of the air guiding groove 5 and the direction perpendicular to the air outlet direction is 60 degrees to 75 degrees, that is, the inclination angle of the air guiding groove 5 is 60 degrees to 75 degrees; it should be noted that the direction perpendicular to the air outlet direction is the left-right direction shown in the figure. In a preferred embodiment of the present embodiment, the acute included angle a is 15 degrees, that is, the wind guiding groove 5 is designed to be inclined by 75 degrees. Of course, the inclination angle is not limited to this, and all the similar structures related to the oblique air guiding groove of the present invention are within the protection range, and the specific inclination angle can be changed and adjusted to the best according to the size of the spiral case, so as to ensure the noise reduction effect.

In the embodiment of the present invention, the length of each rib 4 is 15 mm-20 mm; and/or the height of each rib 4 is 0.5 mm-1 mm; and/or the distance between two adjacent ribs 4 is 0.5 mm-1.5 mm. In a preferred version of this embodiment, the length of each rib 4 is 19 mm; and/or the height of each rib 4 is 0.5 mm; and/or the distance between two adjacent ribs 4 is 1 mm. That is, as shown in fig. 5, the air guide groove 5 may be set to have a length of 19 mm, a width of 1 mm, and a depth of 0.5 mm. Of course, above data is not single, any the utility model relates to a size of similar structure all can change, and the accessible experiment changes and reaches and satisfy different requirements, can realize material saving, reduce cost, keep the whole pleasing to the eye etc. of snail tongue when guaranteeing noise reduction effect. The structural shape and the like of the air guide groove 5 are determined by the specific structure and the number of the ribs 4, and the ribs 4 shown in fig. 3 are long, but the external shape and the size can be adjusted correspondingly. The vertical direction shown in fig. 5 is the longitudinal direction of the rib, and the direction perpendicular to the surface of the volute tongue is the height direction of the rib.

In the present embodiment, the surface of the volute tongue 2 is a curved surface, and the contour of the top surface 41 of each convex ridge 4 is consistent with the contour of the surface of the volute tongue 2. The top surface 41 of the rib 4 is correspondingly curved as shown in fig. 4, and the height of the rib 4 is the same, so that the air flow can be ensured to be even and smooth, and the volute tongue surface is neat and beautiful. It should be noted that, as shown in fig. 4, the end of the lug, which is far away from the volute tongue surface and opposite to the volute tongue surface, is the top surface of the lug.

For convenience of installation, transportation and the like, the volute body 1 comprises an upper volute 11 and a lower volute 12 detachably connected with the upper volute 11, and the volute tongue 2 is connected with the lower volute 12, wherein the volute tongue 2 and the lower volute 12 can be integrally formed. When the upper volute 11 and the lower volute 12 are disassembled, fig. 3 is a top view of the interior of the lower volute, and the volute tongue 2 on the lower volute 12 can be seen, the direction of the arrow in the figure upwards is the air outlet direction of the air outlet 3, and a plurality of inclined convex ribs 4 are arranged on the surface of the volute tongue 2. As shown in fig. 2, the upper volute 11 and the lower volute 12 are detachably connected through a clamping structure, a clamping block is arranged on the upper volute 11 at the joint of the upper volute 11 and the lower volute 12, a clamping jaw matched with the clamping block is arranged on the lower volute 12, the clamping block can be clamped by the clamping jaw to form a clamping structure, so that the clamping block and the clamping block are spliced together, and the clamping jaw is separated from the clamping block during disassembly. In addition, as shown in fig. 1, mounting plates for fixedly connecting with an air conditioner are further provided at two ends of the upper volute 11 and the lower volute 12, and the mounting plates are provided with bolt holes and can be mounted on the air conditioner through plug bolts.

In the present embodiment, the volute tongue 2 and each rib 4 are of an integrally formed structure. Thus, the processing and the manufacturing are convenient, and the connection strength, the service performance and the like of the two can be ensured. In practice, the volute tongue 2 may be formed by a plastic material, such as Acrylonitrile Butadiene Styrene (ABS), so that the volute tongue 2 and the rib 4 may be integrally injection molded.

The present embodiment also provides an air conditioner including the scroll casing as described above, wherein the air conditioner is a ducted air conditioner. Research aiming at the noise source of the air duct machine shows that the noise source mainly comprises motor noise, mechanical noise, aerodynamic noise and the like, wherein the aerodynamic noise is an important noise source. The aerodynamic noise is mainly caused by dynamic noise alternately appearing on the surfaces of the rotating fan blades and is mainly influenced by the air volume and the rotating speed. Experiments show that aerodynamic noise can be reduced by changing the width of the volute, when the fan blades rotate to cause local pressure drop to drive airflow to flow, the uneven jet flow can be rapidly diffused after entering the volute, but after the size of the volute in the air duct machine is determined, the structure of the volute is difficult to change greatly. Therefore, the utility model discloses a slant wind-guiding groove is add on snail tongue surface, optimizes the inner structure of spiral case, has prolonged the air current stroke that flows, has increased the width of spiral case air outlet in other words indirectly, has effectively reduced the pneumatic noise that the fan blade produced when rotating, has solved the great problem of noise that the air conditioner produced among the prior art.

It should be noted that, devices or components with different functions in the above embodiments may be combined, for example, in a preferred embodiment of the present invention, the spiral casing includes a spiral casing main body 1 and a spiral tongue 2 connected to the spiral casing main body 1, the spiral casing main body 1 is provided with an air outlet 3, the surface of the spiral tongue 2 is provided with a plurality of protruding ribs 4, an air guiding groove 5 for allowing air to pass through and being capable of extending an air flow path is formed between two adjacent protruding ribs 4, and the air guiding groove 5 is an oblique air guiding groove to guide the air flowing to the air outlet 3 to flow along the oblique air guiding groove 5. At least two groups of wind guide grooves 5 with different inclination directions are formed on the surface of the volute tongue 2, and each group comprises a plurality of wind guide grooves 5 so as to change the flowing unicity of the airflow. The extending direction of the wind guide groove 5 on the volute tongue 2 is intersected with the wind outlet direction of the wind outlet 3 to form an acute angle a of 15-30 degrees, preferably 15 degrees. The length of each rib 4 is 15 mm to 20 mm, preferably 19 mm. The height of each rib 4 is 0.5 mm to 1 mm, preferably 0.5 mm. The distance between two adjacent ribs 4 is 0.5 mm to 1.5 mm, preferably 1 mm. That is, as shown in fig. 5, the air guiding groove 5 has a length of 19 mm, a width of 1 mm, a depth of 0.5 mm, and an acute angle b perpendicular to the air outlet direction is 75 degrees.

In this embodiment, the surface of the volute tongue 2 is curved, and the contour of the top surface 41 of each rib 4 is identical to the contour of the surface of the volute tongue 2, i.e. the top surface 41 of each rib 4 is also curved correspondingly. In addition, the volute tongue 2 and each convex rib 4 are of an integrally formed structure. For convenience of installation, transportation and the like, the volute body 1 comprises an upper volute 11 and a lower volute 12 detachably connected with the upper volute 11, and the volute tongue 2 is connected with the lower volute 12.

So set up, optimize the spiral case structure, add the slant wind-guiding groove on the spiral tongue surface, the air current moves along the slant wind-guiding groove, the flow distance when gas flows through the spiral tongue has been increased, the air current flow stroke has been prolonged in inside the spiral case equivalently, can be at the in-process noise reduction that flows, the slant wind-guiding groove has increased the width of spiral case air outlet equivalently indirectly, the aerodynamic noise that produces when effectively having reduced the fan blade rotation, and can obviously change the unicity that the air current flows, the air current that reachs the air outlet can control two directions and flow in the past, scatter to both sides, the noise reduction effect is more obvious, user experience has been improved, the great problem of noise that the air conditioner produced among the prior art has been solved.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (12)

1. The volute is characterized by comprising a volute body (1) and a volute tongue (2) connected with the volute body (1), wherein an air outlet (3) is formed in the volute body (1), a plurality of convex ribs (4) are arranged on the surface of the volute tongue (2), and an air guide groove (5) which is used for allowing air to pass through and can prolong the flow path of air flow is formed between every two adjacent convex ribs (4).

2. The spiral casing according to claim 1, wherein the air guiding groove (5) is an inclined air guiding groove.

3. The spiral casing according to claim 2, wherein the surface of the volute tongue (2) is formed with at least two sets of wind-guiding grooves (5) with different inclination directions, and each set comprises a plurality of wind-guiding grooves (5).

4. The spiral casing of claim 2, wherein the extending direction of the wind guiding groove (5) on the spiral tongue (2) intersects with the wind outlet direction of the wind outlet (3) to form an acute angle a of 15-30 degrees.

5. The spiral casing of claim 4 wherein the acute included angle a is 15 degrees.

6. The spiral casing of claim 1, wherein the length of each rib (4) is 15 mm to 20 mm; and/or the height of each rib (4) is 0.5 mm-1 mm; and/or the distance between two adjacent convex ribs (4) is 0.5-1.5 mm.

7. The spiral casing of claim 1, wherein each rib (4) has a length of 19 mm; and/or the height of each rib (4) is 0.5 mm; and/or the distance between two adjacent convex ribs (4) is 1 mm.

8. The spiral casing according to claim 1, characterized in that the surface of the tongue (2) is curved, and the contour of the top surface (41) of each rib (4) corresponds to the contour of the surface of the tongue (2).

9. The spiral casing according to claim 1, characterized in that the spiral casing body (1) comprises an upper spiral casing (11) and a lower spiral casing (12) detachably connected to the upper spiral casing (11), and the volute tongue (2) is connected to the lower spiral casing (12).

10. The spiral casing of claim 1, wherein the tongue (2) is formed integrally with each rib (4).

11. An air conditioner comprising a volute according to any one of claims 1 to 10.

12. The air conditioner of claim 11, wherein the air conditioner is a ducted air conditioner.

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