CN221299593U - Volute, fan and air conditioning system - Google Patents
Volute, fan and air conditioning system Download PDFInfo
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- CN221299593U CN221299593U CN202322971144.9U CN202322971144U CN221299593U CN 221299593 U CN221299593 U CN 221299593U CN 202322971144 U CN202322971144 U CN 202322971144U CN 221299593 U CN221299593 U CN 221299593U
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 9
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 2
- 238000003032 molecular docking Methods 0.000 claims description 2
- 230000007704 transition Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 239000012141 concentrate Substances 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model provides a volute, a fan and an air conditioning system, wherein the volute comprises: the two ends of the guide plate are mutually close to each other and form an air outlet at a specified distance; the side plates are oppositely connected to the outer edges of the two opposite sides of the guide plate, an air channel is formed by surrounding the two side plates and the guide plate, at least one side plate is eccentrically provided with an air inlet, and the air inlet and the air outlet are communicated with the air channel; the axial section of the side plate is an arc, the middle of the arc protrudes towards the outer part of the air duct, and the arc extends from one side of the guide plate to the inside of the air duct. Compared with a straight plate-shaped side plate, the side plate with the arc-shaped design increases the air inlet area and the air inlet quantity of the volute, and can concentrate the entering air flow in the air channel, so that the air inlet effect is improved.
Description
Technical Field
The utility model relates to the technical field of air conditioner accessories, in particular to a volute, a fan and an air conditioner system.
Background
Centrifugal fans are a common structure in air conditioning systems, and are machines that increase the pressure of gas and expel the gas by means of input mechanical energy. With the increasing market demand, there is an increasing demand for high efficiency, low noise fans and their volutes.
However, due to the influence of the installation condition of the fan in the air conditioning system, the fan and the volute in the fan are often compact in structure, high in air inlet resistance and limited in air outlet area, and the increasing air quantity lifting requirement is difficult to meet.
Disclosure of utility model
According to the volute, the fan and the air conditioning system, the side plates are adjusted to be of the arc-shaped structure, so that the air inlet area and the air inlet quantity of the volute are increased, the air inlet resistance is reduced, the entering air flow can be concentrated in the air duct, the supercharging efficiency is improved, and the air inlet effect is improved.
The present utility model provides a volute, comprising: the two ends of the guide plate are mutually close to each other and form an air outlet at a specified distance; the side plates are oppositely connected to the outer edges of the two opposite sides of the guide plate, an air channel is formed by surrounding the two side plates and the guide plate, at least one side plate is eccentrically provided with an air inlet, and the air inlet and the air outlet are communicated with the air channel; the axial section of the side plate is an arc, the middle part of the arc protrudes towards the outside of the air duct, and one side of the arc, which is far away from the guide plate, extends into the air duct.
According to the technical scheme, compared with the flat plate-shaped side plate, the side plate with the arc-shaped design increases the air inlet area and the air inlet quantity of the volute, and can enable the entering air flow to be concentrated in the air channel, so that the supercharging efficiency is improved, and the air inlet effect is improved.
In an alternative technical scheme of the utility model, the arc comprises a plurality of groups of arc sections with different diameters, and the arc sections with different diameters are smoothly transited.
According to the technical scheme, the molded line design of the side plate can reduce air inlet resistance, is favorable for guaranteeing smoothness of the flow channel, can increase the air inlet area of the volute, and improves air inlet quantity.
In an alternative technical scheme of the utility model, a diffuser is arranged at the air outlet, and the peripheral outline of the diffuser comprises a first straight line section, a second straight line section, an arc section and a third straight line section which are connected end to end; the first straight line section and the circular arc section are respectively positioned at the upper side and the lower side of the diffuser, and the circular arc section bends towards one side far away from the first straight line section; the second straight line segment and the fourth straight line segment are respectively positioned at the left side and the right side of the diffuser.
According to the technical scheme, compared with the rectangular peripheral outline, the peripheral outline of the air outlet comprises the circular arc section, so that the air outlet area of the air outlet can be increased, the airflow flowing state is changed, and the sound quality of the air outlet is improved.
In an alternative embodiment of the present utility model, the inner surface of the baffle is an arcuate surface.
According to the technical scheme, the whole inner surface of the guide plate is an arc surface, no boss exists, the air inlet resistance or the air outlet resistance is reduced, and the improvement of the air inlet efficiency and the air outlet efficiency is facilitated.
In an alternative technical scheme of the utility model, the volute is of a butt joint structure.
According to the technical scheme, the spiral case is of a detachable butt joint structure, so that the installation of an internal impeller can be conveniently carried out, and the convenience of assembly is improved.
The utility model further provides a fan, which comprises the volute and an impeller arranged in the volute, wherein the radial distance L n＝N1 is L between the center of the air inlet and the guide plate, and L is the radius of the impeller; n 1 is less than or equal to 1.2 and less than or equal to 1.6.
According to the technical scheme, under the conditions of the air inlet size and the air duct size, the better air outlet efficiency can be ensured, and the air outlet effect is improved.
The utility model further provides an air conditioning system comprising the fan.
Drawings
FIG. 1 is a schematic perspective view of a fan according to an embodiment of the present utility model
FIG. 2 is a schematic cross-sectional view taken along line A-A in FIG. 1 in accordance with an embodiment of the present utility model.
FIG. 3 is a schematic radial cross-sectional view of a blower in an embodiment of the utility model.
FIG. 4 is a schematic view of a side plate profile at S1 in FIG. 2 according to an embodiment of the present utility model
Fig. 5 is a schematic view of a side plate profile at S2 in fig. 2 according to an embodiment of the present utility model.
FIG. 6 is a schematic cross-sectional view of the section B-B of FIG. 1 in an embodiment of the utility model.
FIG. 7 is a schematic view of a side plate profile at S3 in FIG. 6 according to an embodiment of the present utility model
Fig. 8 is a schematic view of a side plate profile at S4 in fig. 6 according to an embodiment of the present utility model.
Fig. 9 is a schematic view of an outer peripheral outline of an air outlet according to an embodiment of the present utility model.
Reference numerals:
A deflector 1; an air outlet 11; a side plate 2; an air inlet 21; a diffuser 3; a first straight line segment 31; a second straight section 32; arc segment 33; a third straight line segment 34; an impeller 4.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1, 2 and 3, the present utility model provides a volute, comprising: the two ends of the guide plate 1 are mutually close to each other and are separated by a prescribed distance to form an air outlet 11; the two side plates 2 and the guide plate 1 are surrounded to form an air channel (shown by long arrows in fig. 3), at least one side plate 2 is eccentrically provided with an air inlet 21, in the embodiment, the two side plates 2 are eccentrically provided with the air inlet 21, the radial width a of the side plate 2 is increased in the involute direction (shown by long arrows in fig. 3) of the volute, and the air inlet 21 and the air outlet 11 are communicated with the air channel; the axial section of the side plate 2 is an arc, the middle part of the arc protrudes towards the outside of the air duct, and one side of the arc away from the guide plate 1 extends into the air duct. Compared with the flat plate-shaped side plate 2, the side plate 2 with the arc-shaped design increases the air inlet area and the air inlet quantity of the volute, and can concentrate the entering air flow in the air channel, so that the air inlet efficiency is improved.
In the present embodiment, the radial direction of the side plate 2 refers to the direction pointing from the center of the air inlet 21, and the radial width of the side plate 2 refers to the width (the width of the two ends of the arrow a in fig. 1 or 3); the axial direction of the side plate 2 is the same as the axial direction of the air inlet 21.
Further, the tail end along the involute extension direction of the volute is closer to the air outlet 11, so that the air quantity is larger, the radial width of the side plate 2 is increased in the involute direction of the volute, the corresponding matching of a larger air outlet area at the air outlet 11 is facilitated, and the air outlet capacity is improved.
In a preferred embodiment of the present utility model, the arc comprises a plurality of sets of arc segments having different diameters, and the plurality of sets of arc segments having different diameters are smoothly transitioned. The molded line design of this curb plate 2 can reduce the air inlet resistance, is favorable to guaranteeing the smoothness in wind channel, and can increase the air inlet area of spiral case, improves the intake. In some embodiments, as shown in fig. 1, 2, 4 and 5, with the radial direction being the X axis and the axial direction being the Y axis, several points are selected on the side plate 2 shown in fig. 2 to perform curve fitting to obtain the following equation:
yn＝1E-05xn 5-0.0009xn 4+0.0276xn 3-0.3908xn 2+2.6775xn+6.5545
yn＝-2E-06xn 5+0.0002xn 4-0.006xn 3+0.0691xn 2+0.2582xn+6.2368.
correspondingly, the profile design of the side plate 2 can be performed according to the obtained equation.
As shown in fig. 1, 7 and 8, the radial direction is taken as the X axis, the axial direction is taken as the Y axis, and a plurality of points are selected on the side plate 2 shown in fig. 6 for curve fitting to obtain the following equation:
yn＝2E-08xn 5-2E-05xn 4+0.002xn 3-0.0747xn 2+1.1519xn+7.7409
yn＝-1E-05xn 5+0.0006xn 4-0.0093xn 3-0.0312xn 2+1.8092xn+
2.1712, correspondingly, the profile design of the side plate 2 can be performed according to the resulting equation.
In the preferred embodiment of the utility model, the guide plate 1 and the side plate 2 are of an integrated structure, so that the assembly process of the volute is simplified, the precision and quality of the volute are improved, and the stability of the volute is improved.
In a preferred embodiment of the present utility model, as shown in fig. 9, a diffuser 3 is disposed at the air outlet 11, and the peripheral contour of the diffuser 3 includes a first straight line segment 31, a second straight line segment 32, an arc segment 33 and a third straight line segment 34 connected end to end; the first straight line segment 31 and the circular arc segment 33 are respectively positioned at the upper side and the lower side of the diffuser 3, and the circular arc segment 33 is bent towards the side far from the first straight line segment 31; the second straight line segment 32 and the fourth straight line segment 34 are located on the left and right sides of the diffuser 3, respectively, and in this embodiment, the upper, lower, left and right sides of the diffuser 3 are the upper, lower, left and right sides facing the drawing angle.
Through the mode, compared with the rectangular peripheral outline, the peripheral outline of the air outlet 11 comprises the circular arc section, so that the air outlet area of the air outlet 11 can be increased, the airflow flowing state is changed, and the sound quality of the air outlet is improved.
Further, the radius r of the circular arc segment 33 is related to the radius of the impeller 4 installed in the volute, r=n 2 ×l, where L is the radius of the impeller, and 4.4N 2 is 4.85.
In a preferred embodiment of the utility model, the inner surface of the baffle 1 is an arcuate surface. The inner surface of the guide plate 1 is an arc surface, no boss exists, the air inlet resistance or the air outlet resistance is reduced, and the air inlet efficiency and the air outlet efficiency are improved.
In a preferred embodiment of the utility model, the volute is of a docking configuration. Specifically, the spiral case is the butt joint structure separable in the axial direction, can conveniently carry out the installation of inside impeller 4, improves the convenience of equipment.
The present utility model further provides a fan, including the above-mentioned volute, as shown in fig. 3, in which an impeller 4 is disposed, and a radial distance Ln＝N1*L,1.2≤N1≤1.6,n＝1、2、3、4……7,L、L1、L2、L3、L4、L5、L6、L7 between the center of the air inlet 21 and the baffle 1 is 45 ° between every two adjacent radial distances. Under the condition of the air inlet size and the air duct size, the better air outlet efficiency can be ensured, and the air outlet effect is improved.
The utility model further provides an air conditioning system comprising the fan.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (7)
1. A volute, comprising:
The two ends of the guide plate are mutually close to each other and form an air outlet at a specified distance;
the side plates are oppositely connected to the outer edges of the two opposite sides of the guide plate, an air channel is formed by surrounding the two side plates and the guide plate, at least one side plate is eccentrically provided with an air inlet, and the air inlet and the air outlet are communicated with the air channel; it is characterized in that the method comprises the steps of,
The axial section of the side plate is an arc, the middle of the arc protrudes towards the outer part of the air duct, and the arc extends from one side of the guide plate to the inside of the air duct.
2. The volute of claim 1, wherein the arc comprises a plurality of sets of arc segments of different diameters, and wherein the plurality of sets of arc segments of different diameters transition smoothly.
3. The volute of claim 2, wherein a diffuser is disposed at the air outlet, and wherein the peripheral contour of the diffuser includes a first straight line segment, a second straight line segment, an arc segment, and a third straight line segment that are connected end to end;
The first straight line segment and the circular arc segment are respectively positioned at the upper side and the lower side of the diffuser, and the circular arc segment is bent towards one side far away from the first straight line segment;
the second straight line segment and the fourth straight line segment are respectively positioned at the left side and the right side of the diffuser.
4. A volute according to any one of claims 1 to 3, wherein the inner surface of the baffle is an arcuate surface.
5. A volute according to any one of claims 1 to 3, wherein the volute is of a docking configuration.
6. A blower, comprising: the volute of any one of claims 1 to 5 and an impeller disposed within the volute, a radial distance L n＝N1 x L between a center of the air intake and the baffle, wherein L is a radius of the impeller; n 1 is less than or equal to 1.2 and less than or equal to 1.6.
7. An air conditioning system comprising the blower of claim 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322971144.9U CN221299593U (en) | 2023-11-02 | 2023-11-02 | Volute, fan and air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322971144.9U CN221299593U (en) | 2023-11-02 | 2023-11-02 | Volute, fan and air conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221299593U true CN221299593U (en) | 2024-07-09 |
Family
ID=91737073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322971144.9U Active CN221299593U (en) | 2023-11-02 | 2023-11-02 | Volute, fan and air conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221299593U (en) |
-
2023
- 2023-11-02 CN CN202322971144.9U patent/CN221299593U/en active Active
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