CN115978642B - Air conditioner - Google Patents
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- CN115978642B CN115978642B CN202211666919.5A CN202211666919A CN115978642B CN 115978642 B CN115978642 B CN 115978642B CN 202211666919 A CN202211666919 A CN 202211666919A CN 115978642 B CN115978642 B CN 115978642B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 238000009434 installation Methods 0.000 claims description 11
- 239000006261 foam material Substances 0.000 claims description 3
- 239000006260 foam Substances 0.000 description 29
- 230000000694 effects Effects 0.000 description 9
- 238000004088 simulation Methods 0.000 description 6
- 238000012795 verification Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000003116 impacting effect Effects 0.000 description 2
- 239000013598 vector Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
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Abstract
The application relates to the field of electric appliances and provides an air conditioner which comprises a shell, a volute and a flow guiding structure, wherein an air inlet is formed in the shell, the volute is arranged in the shell, an air inlet cavity communicated with the air inlet is formed between the volute and the shell, the volute is provided with an axial air suction inlet communicated with the air inlet cavity, the volute is provided with a fan blade cavity and an air outlet channel which are arranged along the height direction of the volute, the fan blade cavity is communicated with the axial air suction inlet, the air outlet channel is communicated with the fan blade cavity, and the flow guiding structure is arranged in the air inlet cavity and is positioned at one side of the axial air suction inlet and used for guiding air flow entering the air inlet cavity to the axial air suction inlet. In the application, the air inlet cavity is internally provided with the flow guide structure, and after the air flow enters the air inlet cavity through the air inlet, the air flow is guided to the axial air inlet of the volute under the action of the flow guide structure, so that the air flow can relatively and uniformly enter the volute, and the performance of the air conditioner is improved.
Description
Technical Field
The invention relates to the field of electric appliances, in particular to an air conditioner.
Background
In the related art, an air inlet cavity is formed between the shell of the air conditioner and the volute, and air flows enter an air channel in the volute after passing through the air inlet cavity, but in the related art, the air flows in the air inlet cavity lack of guidance and cannot relatively and uniformly enter the volute, so that the air flows mutually impact, the air quantity is small, and the performance of the air conditioner is poor.
Disclosure of Invention
In order to solve the technical problem that the air conditioner is poor in performance due to the fact that the air conditioner is lack of guiding air flow in an air inlet cavity, an air conditioner is provided.
The invention provides an air conditioner, comprising: the shell is provided with an air inlet; the spiral case is arranged in the shell, an air inlet cavity communicated with the air inlet is formed between the spiral case and the shell, the spiral case is provided with an axial air inlet communicated with the air inlet cavity, the spiral case is provided with a fan blade cavity and an air outlet channel which are arranged along the height direction of the spiral case, the fan blade cavity is communicated with the axial air inlet, and the air outlet channel is communicated with the fan blade cavity; the flow guiding structure is arranged in the air inlet cavity and positioned at one side of the axial air inlet and used for guiding air flow entering the air inlet cavity to the axial air inlet.
Further, the air inlet is arranged on the rear side wall of the shell, the axial air suction inlet comprises a left air suction inlet and a right air suction inlet, and the air outlet air duct comprises an upper air outlet air duct and a lower air outlet air duct; the plurality of diversion structures are arranged, one diversion structure is respectively arranged above and below the left air suction opening, and one diversion structure is respectively arranged above and below the right air suction opening; the air flow enters the air inlet cavity through the air inlet, one part of the air flow enters the left air suction inlet under the flow guiding action of the left flow guiding structure, and the other part of the air flow enters the right air suction inlet under the flow guiding action of the right flow guiding structure.
Further, the surface of the flow guiding structure facing the air inlet forms a first arc-shaped flow guiding surface.
Further, the flow guiding structure is arranged on the axial side wall of the volute; the surface of the diversion structure far away from the volute forms a second arc diversion surface.
Further, an installation groove is formed in the axial side wall of the volute; the water conservancy diversion structure includes: the surface of the arc-shaped flow guiding part, which faces the air inlet, forms a first arc-shaped flow guiding surface, and the surface of the arc-shaped flow guiding part, which is far away from the volute, forms a second arc-shaped flow guiding surface; and the installation part is connected with the surface, close to the volute, of the arc-shaped flow guide part and is clamped with the installation groove.
Further, an abutting structure is further arranged on the axial side wall of the volute, the lower end face of the flow guiding structure arranged below the axial air suction port abuts against the upper end face of the abutting structure, and the upper end face of the flow guiding structure arranged above the axial air suction port abuts against the lower end face of the abutting structure.
Further, the first arc-shaped guide surface is arranged in a protruding way towards one side far away from the air inlet; along the vertical direction that is close to axial inlet scoop, the horizontal distance between first arc guide surface and the air intake increases gradually.
Further, the projection of the first arc-shaped guide surface on a vertical surface perpendicular to the axis of the volute is a first arc-shaped line segment; the range of the curvature radius r of the first arc line segment is as follows: r is more than or equal to 600mm and less than or equal to 700mm.
Further, the second arc-shaped guide surface is arranged in a protruding way towards one side far away from the volute; along the air inlet direction of the air inlet, the horizontal distance between the second arc-shaped flow guide surface and the volute is gradually reduced.
Further, along the air inlet direction of the air inlet, the projection of the second arc-shaped guide surface on the horizontal plane comprises a second arc-shaped line segment and a third arc-shaped line segment which are connected; the curvature radius R1 of the second arc line segment has the following range: r1 is more than or equal to 800mm and less than or equal to 1600mm; establishing a two-dimensional coordinate system by using an endpoint A of the third arc line segment, wherein the direction parallel to the width direction of the volute and pointing to the air inlet is the positive direction of the x axis, and the direction parallel to the axial direction of the volute and outwards is the positive direction of the y axis; the range of curvature radius R2 of the third arc line segment needs to satisfy the following formula: r2=k (x+2) 2, where 0.05+.k+.0.3, 0 mm+.x+.145 mm; or r2=ax t, wherein a is 7-8.5,0.35-t is 0.4 and x is 145mm.
Further, along the horizontal radial direction of the volute, the length a of the arc-shaped flow guiding part has the following range: a is more than or equal to 160mm and less than or equal to 180mm; and/or along the vertical radial direction of the volute, the range of the height b of the arc-shaped flow guiding part is as follows: b is more than or equal to 300mm and less than or equal to 350mm; and/or along the axial direction of the volute, the range of the width c of the arc-shaped flow guiding part is as follows: c is more than or equal to 55mm and less than or equal to 65mm.
Further, along the vertical direction of the volute, the range of the distance h between the lowest end of the flow guiding structure and the volute tongue closest to the flow guiding structure is as follows: h is more than or equal to 10mm.
Further, the flow guiding structure is made of foam material.
By applying the technical scheme of the application, the air conditioner comprises a shell, a volute and a flow guiding structure, wherein the shell is provided with an air inlet, the volute is arranged in the shell, an air inlet cavity communicated with the air inlet is formed between the volute and the shell, the volute is provided with an axial air inlet communicated with the air inlet cavity, an air outlet channel communicated with the axial air inlet is formed in the volute, and the flow guiding structure is arranged in the air inlet cavity and positioned at one side of the axial air inlet and is used for guiding air flow entering the air inlet cavity to the axial air inlet. In the application, the air inlet cavity is internally provided with the flow guide structure, and after the air flow enters the air inlet cavity through the air inlet, the air flow is guided to the axial air inlet of the volute under the action of the flow guide structure, so that the air flow can relatively and uniformly enter the volute, the air flow is prevented from impacting each other, the air quantity is increased, and the performance of the air conditioner is improved.
Drawings
FIG. 1 is a schematic view showing a disassembled structure of an air conditioner according to an alternative embodiment of the present invention;
fig. 2 shows a left side view of the air conditioner of fig. 1 after assembly;
FIG. 3 is a schematic view showing a flow guiding structure of the air conditioner of FIG. 1;
FIG. 4 shows a top view of the flow directing structure of FIG. 3;
Fig. 5 illustrates a schematic cross-sectional view of an airflow passage of an air conditioner in the related art;
FIG. 6 shows a schematic cross-sectional view of an airflow path of the air conditioner of FIG. 1;
fig. 7 shows a comparison of the airflow velocity vectors of fig. 5 before modification and fig. 6 after modification.
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application.
In the drawings:
10. A volute; 100. a first housing; 200. a second housing; 11. a left air suction port; 12.a right side air suction port; 13. an upper air outlet duct; 14. a lower air outlet duct; 15. a mounting groove; 16. an abutting structure; 20. a flow guiding structure; 201. a first arcuate flow directing surface; 211. a first arcuate line segment; 212. a second arcuate line segment; 213. a third arcuate line segment; 202. a second arcuate flow directing surface; 21. an arc-shaped flow guiding part; 22. a mounting part; 30. a centrifugal fan; 40. a heat exchanger; 1. an air inlet cavity.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
The invention provides an air conditioner in order to solve the technical problem that the air conditioner in the related art lacks in guiding the air flow in an air inlet cavity so as to cause poor performance of the air conditioner.
As shown in fig. 1 to 4, the air conditioner includes: the shell is provided with an air inlet; the spiral case 10, the spiral case 10 is set up in the outer cover, form the air inlet cavity 1 that is linked with air intake between spiral case 10 and outer cover, spiral case 10 has axial air intake that is linked with air inlet cavity 1, spiral case has fan blade cavity and air-out duct that set up along the direction of height of spiral case, the fan blade cavity is linked with axial air intake, the air-out duct is linked with said fan blade cavity; the flow guiding structure 20 is arranged in the air inlet cavity 1 and is positioned at one side of the axial air inlet and used for guiding the air flow entering the air inlet cavity to the axial air inlet.
In the application, the air inlet cavity 1 is internally provided with the flow guide structure 20, and after air flows enter the air inlet cavity 1 through the air inlet, the air flows are guided to the axial air inlet of the volute 10 under the action of the flow guide structure 20, so that the air flows can relatively and uniformly enter the volute 10, the air flows are prevented from impacting each other, the air quantity is increased, and the performance of the air conditioner is improved.
As shown in fig. 1 and 2, optionally, the air inlet is arranged on the rear side wall of the shell, the axial air suction inlet comprises a left air suction inlet 11 and a right air suction inlet 12, and the air outlet duct comprises an upper air outlet duct 13 and a lower air outlet duct 14; the plurality of diversion structures 20 are arranged, one diversion structure 20 is respectively arranged above and below the left air suction port 11, and one diversion structure 20 is respectively arranged above and below the right air suction port 12; the air flow enters the air inlet cavity 1 through the air inlet, part of the air flow enters the left air suction inlet 11 under the flow guiding action of the left flow guiding structure 20, and part of the air flow enters the right air suction inlet 12 under the flow guiding action of the right flow guiding structure 20. The application guides the air inlet flow by arranging a plurality of guide structures 20 which are matched with the air inlet cavity 1, the left air inlet 11 and the right air inlet 12, the direction of the air inlet flow is close to the flowing direction of the main air flow of the volute 10, the abrupt change of the moving direction of the air inlet flow is reduced, the air inlet flow resistance and the air leakage of a fan are reduced, the air flow loss of the air inlet of the fan is effectively reduced, the air quantity is increased, the smoothness of the air flow before entering the volute 10 is improved, and the air flow before entering the volute 10 is stable and uniform, so that the air inlet tone quality is effectively improved, the pneumatic noise of a fan system is reduced.
Optionally, as shown in fig. 6, the air conditioner further includes a centrifugal fan 30 and a heat exchanger 40, the heat exchanger 40 is installed between the housing and the volute and is located at a position close to the air inlet, the centrifugal fan 30 is in driving connection with a motor through a bearing, the motor is installed on the volute through a motor bracket, the centrifugal fan 30 is located in a fan blade cavity, under the action of the centrifugal fan 30, air flow enters the housing from the air inlet, enters the air inlet cavity 1 after heat exchange with the heat exchanger 40, and under the action of the centrifugal fan 30, a part of air flow enters the left air suction opening 11 under the action of the diversion structure 20 on the left side, a part of air flow enters the right air suction opening 12 under the action of the diversion structure 20 on the right side, and then flows out from the upper air outlet air duct 13 and/or the lower air outlet air duct 14 of the volute 10.
Alternatively, the heat exchanger 40 is an evaporator.
As shown in fig. 1 and 2, optionally, a surface of the flow guiding structure 20 facing the air inlet forms a first arc-shaped flow guiding surface 201. Thus, after the air flow enters the air inlet cavity 1, a part of the air flow is guided to the axial air inlet of the volute 10 under the action of the first arc-shaped guiding surface 201.
As shown in fig. 1 and 2, the flow guiding structure 20 is optionally mounted on an axial sidewall of the volute 10; the surface of the flow guiding structure 20 remote from the volute 10 forms a second arcuate flow guiding surface 202. Thus, after the air flow enters the air inlet cavity 1, a part of the air flow is guided to the axial air inlet of the volute 10 under the action of the second arc-shaped guiding surface 202.
As shown in fig. 1 and 2, optionally, a mounting groove 15 is provided on an axial side wall of the volute 10; the flow guiding structure 20 comprises: the surface of the arc-shaped flow guiding part 21 facing the air inlet forms a first arc-shaped flow guiding surface 201, and the surface of the arc-shaped flow guiding part 21 far away from the volute 10 forms a second arc-shaped flow guiding surface 202; the installation part 22, the surface of installation part 22, which is close to spiral case 10, of arc water conservancy diversion portion 21 is connected, installation part 22 and mounting groove 15 joint. In this way, the installation of the diversion structure 20 and the volute 10 is convenient, and the diversion structure 20 has simple structure and low cost.
As shown in fig. 1, the shape of the mounting groove 15 is optionally adapted to the shape of the mounting portion 22.
As shown in fig. 1 and 3, alternatively, the mounting portion 22 is provided in a strip shape, so that the structure is simple, the mounting and fixing are convenient, the mounting is reliable, and the falling off is not easy.
As shown in fig. 1 and 3, the elongated mounting portion 22 may alternatively extend in an arc. Thus, the large annular strip can be tightly attached in the mounting groove 15 of the volute 10, the clamping effect is better, the mounting is more reliable, and the volute is less prone to falling off.
As shown in fig. 1, an abutting structure 16 is further disposed on the axial side wall of the volute casing 10, the lower end face of the flow guiding structure 20 disposed below the axial air intake abuts against the upper end face of the abutting structure 16, and the upper end face of the flow guiding structure 20 disposed above the axial air intake abuts against the lower end face of the abutting structure 16.
As shown in fig. 1,2, 3 and 6, optionally, the first arc-shaped guiding surface 201 is convexly disposed towards a side away from the air inlet; along the vertical direction near the axial air intake, the horizontal distance between the first arc-shaped flow guiding surface 201 and the air intake gradually increases. In this way, the diversion effect of the first arc-shaped diversion surface 201 is better.
As shown in fig. 2, optionally, the projection of the first arc-shaped diversion surface 201 on a vertical plane perpendicular to the axis of the volute 10 is a first arc-shaped line segment 211; the curvature radius r of the first arc segment 211 has a range of values: r is more than or equal to 600mm and less than or equal to 700mm. Through simulation and experimental verification, the effect is better when the parameters are set in the numerical range.
As shown in fig. 1, 3, 4 and 6, the second arcuate guide surface 202 may alternatively be provided to protrude toward a side away from the scroll casing 10; the horizontal distance between the second arc-shaped flow guiding surface 202 and the volute 10 gradually decreases along the air inlet direction of the air inlet. In this way, the flow guiding effect of the second arc-shaped flow guiding surface 202 is better.
In an alternative embodiment of the present application, as shown in fig. 4, the projection of the second curved guide surface 202 on the horizontal plane along the air inlet direction of the air inlet includes a second curved line segment 212 and a third curved line segment 213 that are connected; the curvature radius R1 of the second arc segment 212 has a range of values: r1 is more than or equal to 800mm and less than or equal to 1600mm; establishing a two-dimensional coordinate system by using an end point A of a third arc line segment 213, wherein the direction parallel to the width direction of the volute and pointing to the air inlet is the positive direction of an x axis, and the direction parallel to the axial direction of the volute and outwards is the positive direction of a y axis; the range of curvature radius R2 of the third arc segment 213 needs to satisfy the following formula: r2=k (x+2) 2, where 0.05.ltoreq.k.ltoreq.0.3, 0 mm.ltoreq.x.ltoreq.145 mm. Through simulation and experimental verification, the effect is better when the parameters are set in the numerical range.
In another alternative embodiment of the present application, as shown in fig. 4, the projection of the second arc-shaped diversion surface 202 on the horizontal plane along the air inlet direction of the air inlet includes a second arc-shaped line segment 212 and a third arc-shaped line segment 213 which are connected; the curvature radius R1 of the second arc segment 212 has a range of values: r1 is more than or equal to 800mm and less than or equal to 1600mm; establishing a two-dimensional coordinate system by using an end point A of the third arc line segment 213, wherein the direction parallel to the width direction of the volute and pointing to the air inlet is the positive direction of the x axis, and the direction parallel to the axial direction of the volute and outwards is the positive direction of the y axis; the range of curvature radius R2 of the third arc segment 213 needs to satisfy the following formula: r2=ax t, where a is 7-8.5,0.35-t is 0.4 and 0 mm-x is 145mm. Through simulation and experimental verification, the effect is better when the parameters are set in the numerical range.
As shown in fig. 1 and 2, the axial direction of the centrifugal fan 30 is the y ' direction, the x ' direction is perpendicular to the y ' direction, the x ' direction and the y ' direction are perpendicular to the z ' direction, the horizontal radial direction x ' of the scroll casing 10, the vertical radial direction of the scroll casing 10 is the z ' direction, and the axial direction of the scroll casing 10 is the y ' direction.
Optionally, along the horizontal radial direction of the volute 10, the length a of the arc-shaped diversion portion 21 has a value ranging from: a is more than or equal to 160mm and less than or equal to 180mm; and/or along the vertical radial direction of the volute 10, the height b of the arc-shaped flow guiding part 21 is in the range of: b is more than or equal to 300mm and less than or equal to 350mm; and/or along the axial direction of the volute 10, the width c of the arc-shaped flow guiding portion 21 has a value ranging from: c is more than or equal to 55mm and less than or equal to 65mm. Through simulation and experimental verification, the effect is better when the parameters are set in the numerical range.
Optionally, along the vertical direction of the volute casing 10, the distance h between the lowermost end of the flow guiding structure 20 and the volute tongue closest thereto is in the range of: h is more than or equal to 10mm. Through simulation and experimental verification, the effect is better when the parameters are set in the numerical range.
Optionally, along the vertical direction of the volute casing 10, the distance h between the lowermost end of the flow guiding structure 20 and the volute tongue closest thereto is in the range of: h is more than or equal to 20mm.
The invention provides an air inlet guide and air duct parameter design method of a vertical air conditioner, which is mainly applied to the air duct design of a distributed air supply cabinet type air conditioner with double air inlet cavities. If the air inlet cavity of the centrifugal fan lacks good guiding, the air inlet resistance is larger, and a part of air flow flows backwards after entering the impeller. As shown before the improvement of fig. 7, because the air inlet cavity structure lacks air flow guiding, the air flow is disturbed before entering the double-suction centrifugal fan, and the air flow before entering the volute 10 is not smooth and unstable, so that the air quantity is small, and the noise is increased.
Optionally, the volute 10 includes a first housing 100 and a second housing 200 for ease of machining.
In a specific embodiment of the present application, four convex cambered V-shaped diversion foams, i.e. diversion structures 20, are designed on the upper and lower sides of the first casing 100 of the volute 10 and the second casing 200 of the volute according to the air inlet space and the air duct structure size of the whole machine. As shown in figures 2 and 4, the width a of the diversion foam is 160mm less than or equal to a less than or equal to 180mm; the height b of the diversion foam is more than or equal to 300mm and less than or equal to 350mm; the thickness c of the diversion foam is more than or equal to 55mm and less than or equal to 65mm; the distance h between the diversion foam and the volute tongue is more than or equal to 10mm (can be adjusted according to a specific air duct); the radius r of the flow guiding foam is more than or equal to 600mm and less than or equal to 700mm; the curvature radius R2 of the AB section diversion foam cambered surface, namely the curvature radius R2 of the third cambered line segment 213, wherein R2 = kx+2 2, k is more than or equal to 0.05 and less than or equal to 0.3, and the distance variable x is more than or equal to 0mm and less than or equal to 145mm from bottom to top; the radius of curvature R1 of the BC segment diversion foam cambered surface, namely the radius of curvature R1 of the second cambered line segment 212, is more than or equal to 800mm and less than or equal to 1600mm.
Preferably, the optimal parameters of the present design are as follows: flow-directing foam width a, a=175 mm; the height of the guide foam b, b=320 mm; flow-directing foam thickness c, c=62 mm; the distance h between the guide foam and the volute tongue is h=16mm, the guide foam radius R is r=660 mm, the arc surface curvature radius R2 of the guide foam of the AB section is the curvature radius R2 of the third arc line segment 213, R2=0.15 (x+2) 2, and the arc surface curvature radius R1 of the guide foam of the BC section is the curvature radius R1 of the second arc line segment 212, R1=1400 mm.
In another specific embodiment of the application, when the guiding cooperation of the air inlet guiding foam and the fan assembly is subjected to parameter design, the guiding foam width a is more than or equal to 160mm and less than or equal to 180mm; the height b of the diversion foam is more than or equal to 300mm and less than or equal to 350mm; the thickness c of the diversion foam is more than or equal to 55mm and less than or equal to 65mm; the distance h between the diversion foam and the volute tongue is more than or equal to 20mm (can be adjusted according to a specific air duct); the radius r of the flow guiding foam is more than or equal to 600mm and less than or equal to 700mm; the cambered surface section curve of the AB section diversion foam meets the following conditions: r2 = Ax t, wherein A is more than or equal to 7 and less than or equal to 8.5,0.35 and less than or equal to t is more than or equal to 0.4, x is more than or equal to 0mm and less than or equal to 145mm, and the curvature radius R1 of the BC segment flow guiding foam cambered surface is more than or equal to 800mm and less than or equal to R1 is less than or equal to 1600mm.
Fig. 5 is before improvement, fig. 6 is after improvement, as can be seen by comparing fig. 5 and fig. 6, the air inlet cavity 1 is optimized, the flow guiding structure 20 is arranged, and the parameters are optimally designed, as can be seen by improving fig. 6, when the parameter design is adopted, the air duct layout of the fan is compact, and the air quantity is improved by about 40m 3/h after the design is adopted through simulation and experimental verification. As shown in fig. 7, the comparison of the airflow velocity vectors before and after improvement shows that the improved flow guiding structure 20 has good guiding effect on the air inlet flow, so that a better flow track is obtained, the smoothness of the air flow before entering the volute 10 is effectively improved, the air flow before entering the volute 10 is stable and uniform, the abrupt change of the movement direction of the air inlet flow is reduced, the flow loss of the air inlet of the fan is obviously reduced, the air quantity is increased, and the performance of the single-centrifugal double-suction fan is improved; the air inlet tone quality is also effectively improved, the pneumatic noise of the fan system is reduced, and the use comfort of a user is improved.
Alternatively, the flow directing structure 20 is made of a foam material. In this way, the cost of the flow guiding structure 20 is low.
Optionally, the flow guiding structure 20 is used not only for guiding the airflow, but also for guiding the condensed water.
Optionally, the second arcuate flow guiding surface 202 of the flow guiding structure 20 is used to guide condensed water into the water receiving tank.
Optionally, the bottoms of the second arc-shaped diversion surfaces 202 of the two diversion structures 20 arranged below are also provided with third arc-shaped diversion surfaces which are concave inwards and are used for diversion of condensed water into the water receiving groove at the bottom.
Optionally, an upper air outlet is arranged above the air conditioner, a base is arranged below the air conditioner, and condensed water is often attached to the outer surface of the volute 10, so that potential safety hazards are generated. In the application, as the foam diversion structures 20 are arranged at the four corners, superfluous condensed water above can flow into the water receiving tank along the arched outer surface of the upper foam diversion structure 20, namely the second arc diversion surface 202, and the third arc diversion surfaces which are also arranged below and are concave inwards by the foam diversion structures 20 are convenient for the condensed water on the surface of the air duct to flow into the water receiving tank below, and enough cambered surfaces are reserved for draining the condensed water no matter the second arc diversion surfaces or the third arc diversion surfaces.
Optionally, the air conditioner further includes a wind guard disposed in the casing, the wind guard is disposed at two axial sides of the volute 10, the air flow firstly enters the filter screen from the external environment, then passes through the evaporator to perform cold-heat exchange, and reaches the vicinity of the wind guard, a part of the air flow with a higher speed is concentrated along the first arc-shaped guiding surface 201 of the foam guiding structure 20 towards the center of the rotating fan, another part of the air flow is concentrated along the foam surface after flowing towards the wind guard and is concentrated to the center of the rotating fan again, and the slower air flow is concentrated between the wind guard and the volute 10, and flows uniformly to the air cavity of the volute 10 under the action of the fan and the foam.
Exemplary embodiments of the present disclosure are specifically illustrated and described above. It is to be understood that this disclosure is not limited to the particular arrangements, instrumentalities and implementations described herein; on the contrary, the disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present invention; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface on … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. An air conditioner, comprising:
the shell is provided with an air inlet;
The spiral case (10), the spiral case (10) is arranged in the shell, an air inlet cavity (1) communicated with the air inlet is formed between the spiral case (10) and the shell, the spiral case (10) is provided with an axial air inlet communicated with the air inlet cavity (1), the spiral case is provided with a fan blade cavity and an air outlet channel which are arranged along the height direction of the spiral case, the fan blade cavity is communicated with the axial air inlet, and the air outlet channel is communicated with the fan blade cavity;
the flow guiding structure (20) is arranged in the air inlet cavity (1) and is positioned at one side of the axial air inlet and used for guiding air flow entering the air inlet cavity to the axial air inlet;
the flow guiding structure (20) is arranged on the axial side wall of the volute (10);
A second arc-shaped diversion surface (202) is formed on the surface, far away from the volute (10), of the diversion structure (20);
The second arc-shaped guide surface (202) is arranged in a protruding way towards one side far away from the volute (10);
Along the air inlet direction of the air inlet, the horizontal distance between the second arc-shaped flow guide surface (202) and the volute (10) is gradually reduced.
2. An air conditioner according to claim 1, wherein,
The air inlet is arranged on the rear side wall of the shell, the axial air suction inlet comprises a left air suction inlet (11) and a right air suction inlet (12), and the air outlet comprises an upper air outlet (13) and a lower air outlet (14);
The number of the flow guide structures (20) is multiple, one flow guide structure (20) is respectively arranged above and below the left air suction inlet (11), and one flow guide structure (20) is respectively arranged above and below the right air suction inlet (12);
The air flow enters the air inlet cavity (1) through the air inlet, part of the air flow enters the left air suction inlet (11) under the flow guiding action of the left flow guiding structure (20), and part of the air flow enters the right air suction inlet (12) under the flow guiding action of the right flow guiding structure (20).
3. An air conditioner according to claim 1, wherein,
The surface of the flow guiding structure (20) facing the air inlet forms a first arc-shaped flow guiding surface (201).
4. An air conditioner according to claim 1, wherein,
An installation groove (15) is formed in the axial side wall of the volute (10);
The flow guiding structure (20) comprises:
The surface of the arc-shaped flow guide part (21) facing the air inlet forms a first arc-shaped flow guide surface (201), and the surface of the arc-shaped flow guide part (21) far away from the volute (10) forms a second arc-shaped flow guide surface (202);
the installation part (22), installation part (22) with arc water conservancy diversion portion (21) be close to the surface connection of spiral case (10), installation part (22) with mounting groove (15) joint.
5. An air conditioner according to claim 1, wherein,
The axial side wall of the volute (10) is also provided with an abutting structure (16), the lower end face of the flow guiding structure (20) arranged below the axial air suction port abuts against the upper end face of the abutting structure (16), and the upper end face of the flow guiding structure (20) arranged above the axial air suction port abuts against the lower end face of the abutting structure (16).
6. An air conditioner according to claim 3 or 4, wherein,
The first arc-shaped guide surface (201) is arranged in a protruding mode towards one side away from the air inlet;
along the vertical direction near the axial air suction port, the horizontal distance between the first arc-shaped guide surface (201) and the air inlet is gradually increased.
7. An air conditioner according to claim 3 or 4, wherein,
The projection of the first arc-shaped guide surface (201) on a vertical surface perpendicular to the axis of the volute (10) is a first arc-shaped line segment (211);
the range of the curvature radius r of the first arc line segment (211) is as follows: r is more than or equal to 600mm and less than or equal to 700mm.
8. An air conditioner according to claim 1 or 4, wherein,
Along the air inlet direction of the air inlet, the projection of the second arc-shaped guide surface (202) on the horizontal plane comprises a second arc-shaped line segment (212) and a third arc-shaped line segment (213) which are connected;
The curvature radius R1 of the second arc line segment (212) has the following range: r1 is more than or equal to 800mm and less than or equal to 1600mm;
establishing a two-dimensional coordinate system by using an end point A of the third arc line segment (213), wherein the direction parallel to the width direction of the volute and pointing to the air inlet is the positive direction of the x axis, and the direction parallel to the axial direction of the volute and outwards is the positive direction of the y axis; the range of curvature radius R2 of the third arc line segment (213) needs to satisfy the following formula:
R2=k (x+2) 2, where 0.05+.k+.0.3, 0 mm+.x+.145 mm; or (b)
R2=ax t, where a is 7-8.5,0.35-t is 0.4 and 0 mm-x is 145mm.
9. The air conditioner according to claim 4, wherein,
Along the horizontal radial direction of the volute (10), the length a of the arc-shaped flow guiding part (21) has the following range: a is more than or equal to 160mm and less than or equal to 180mm; and/or
Along the vertical radial direction of the volute (10), the height b of the arc-shaped flow guiding part (21) is within the range of: b is more than or equal to 300mm and less than or equal to 350mm; and/or
Along the axial direction of the volute (10), the width c of the arc-shaped flow guiding part (21) has the following range: c is more than or equal to 55mm and less than or equal to 65mm.
10. An air conditioner according to claim 1, wherein,
Along the vertical direction of the volute (10), the range of the distance h between the lowest end of the flow guiding structure (20) and the volute tongue closest to the flow guiding structure is as follows: h is more than or equal to 10mm.
11. An air conditioner according to claim 1, wherein,
The flow guiding structure (20) is made of foam material.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211666919.5A CN115978642B (en) | 2022-12-21 | 2022-12-21 | Air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211666919.5A CN115978642B (en) | 2022-12-21 | 2022-12-21 | Air conditioner |
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| CN115978642A (en) | 2023-04-18 |
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