Purifier

Abstract

The utility model provides a purifier. The purifier comprises a shell, a filtering part and an impeller. The shell is provided with an air inlet and an air outlet; the filtering part is arranged at the air inlet; the impeller is arranged in the shell and can drive gas to enter the shell from the gas inlet, and the gas flows out of the shell from the gas outlet after flowing through the filtering part, and the impeller comprises a cover body, blades and a flow guide ring; the multiple blades are arranged in the circumferential direction of the impeller and connected with the cover body. The flow guide ring is located on the sides, away from the cover body, of the blades and connected with the blades. Wherein the flow guide ring extends in the axial direction away from the impeller in an arc shape from the side away from the cover body to the side close to the cover body, on one axial section of the impeller, the radius of the outer surface of the flow guide ring is the first radius, and the first radius is larger than or equal to 7.8 mm and smaller than or equal to 20.6 mm; on one axial section of the impeller, the central angle corresponding to the outer surface of the flow guide ring is larger than or equal to 52.6 degrees and smaller than or equal to 86.3 degrees. Therefore, the work efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a purifier. Background Art

[0002] At present, in the relevant technology, air purifier is used as a product for indoor air purification. Because it can significantly reduce tiny particles such as formaldehyde in the house, the air is purified by arranging an impeller in the purifier to drive the airflow, and a guide ring is arranged at one end of the impeller to guide the airflow. However, the outer wall of the guide ring is arranged along the axial direction of the impeller, which will reduce the working efficiency of the blades. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art or related technology.

[0004] To this end, a first aspect of the utility model provides a purifier.

[0005] In view of this, the first aspect of the utility model provides a purifier, including a shell, a filter component and an impeller. The shell is provided with an air inlet and an air outlet; the filter component is provided at the air inlet; the impeller is provided in the shell, and can drive the gas to enter the shell from the air inlet, and after flowing through the filter component, it flows out of the shell from the air outlet, and the impeller includes a cover, blades and a guide ring; the number of blades is multiple, and the multiple blades are arranged along the circumference of the impeller and connected to the cover; the guide ring is located on the side of the blade away from the cover and connected to the blade; wherein the guide ring extends in an arc shape from the side away from the cover to the side close to the cover away from the impeller axially; on an axial section of the impeller, the radius of the outer surface of the guide ring is a first radius, the first radius is greater than or equal to 7.8 mm, and less than or equal to 20.6 mm; on an axial section of the impeller, the angle of the central angle corresponding to the outer surface of the guide ring is greater than or equal to 52.6 degrees and less than or equal to 86.3 degrees.

[0006] In this technical solution, the purifier includes a housing, a filter component and an impeller. The housing is provided with an air inlet and an air outlet so that the purifier can introduce external air into the purifier for purification and then discharge it through the air outlet. The filter component is arranged at the air inlet so that the air can be filtered by the filter component after entering the air inlet. The impeller is arranged in the housing, which can drive the gas to enter the housing through the air inlet, and after flowing through the filter component, it flows out of the housing through the air outlet, so as to realize the installation and fixation of the impeller, so that the impeller can accelerate the circulation of the gas, so as to realize the guidance of the air flow, promote the circulation of the air and improve the purification efficiency. The impeller includes a cover body, blades and a guide ring. The number of blades is multiple, and the multiple blades are arranged along the circumference of the impeller and connected to the cover body to realize the installation and fixation of the multiple blades, so that the multiple blades can inhale the air when rotating, thereby improving the efficiency of air purification. The guide ring is located on the side of the blade away from the cover body, and is connected to the blade to achieve the installation and fixation of the guide ring, so that the guide ring can guide the airflow to ensure that the airflow can be purified by the impeller. The guide ring extends in an arc shape from the side away from the cover body to the side close to the cover body in the axial direction away from the impeller, that is, the guide ring is arranged in an arc shape on one side of the blade to achieve the arrangement of the guide ring. On an axial section of the impeller, the radius of the outer surface of the guide ring is a first radius, and the first radius is greater than or equal to 7.8 mm and less than or equal to 20.6 mm, so as to adjust the radius of the outer surface of the guide ring. By setting the radius of the outer surface of the guide ring to 7.8 mm to 20.6 mm, the guide ring can enhance the guiding effect of the airflow, so that the airflow can pass through the impeller more quickly, reduce the resistance of the impeller to the airflow, thereby improving the work efficiency of the impeller and increasing the air volume of the purifier. On an axial section of the impeller, the angle of the central angle corresponding to the outer surface of the guide ring is greater than or equal to 52.6 degrees and less than or equal to 86.3 degrees, so as to adjust the size of the outer surface of the guide ring. By setting the angle of the central angle corresponding to the outer surface of the guide ring to 52.6 degrees to 86.3 degrees, the impeller's work efficiency can be improved and the air volume of the purifier can be improved. The present application forms a smooth airflow channel by setting the guide ring in an arc shape, so that the airflow can reduce resistance when passing through the impeller, so that the airflow can pass through the impeller more quickly, ensuring the air intake efficiency of the impeller inlet and smooth air outlet at the outlet, thereby improving the air volume after the airflow is purified. By optimizing the design of the guide ring, the generation of turbulence and eddy currents can also be reduced, thereby reducing the noise generated when the airflow passes through, solving the problem of "uncomfortable airflow guidance", and thus improving the work efficiency of the blades.

[0007] In addition, the purifier in the above technical solution provided by the utility model may also have the following additional technical features:

[0008] In some technical solutions of the present invention, optionally, the outer diameter of the impeller is a first outer diameter; the inner diameter of the guide ring on the side away from the cover body is a first inner diameter; the ratio of the first inner diameter to the first outer diameter is greater than or equal to 0.65 and less than or equal to 0.88.

[0009] In this technical solution, the outer diameter of the impeller is the first outer diameter; the inner diameter of the side of the guide ring away from the cover body is the first inner diameter; the ratio of the first inner diameter to the first outer diameter is greater than or equal to 0.65 and less than or equal to 0.88, so as to achieve the size adjustment of the two ends of the guide ring along the axial direction of the impeller, thereby achieving the adjustment of the size of the guide ring. By setting the ratio of the first inner diameter to the first outer diameter to 0.65 to 0.88, the guide ring can enhance the guiding effect of the airflow, so that the airflow can pass through the impeller more quickly, reducing the resistance of the impeller to the airflow, thereby improving the air intake efficiency of the impeller, so as to increase the air volume of the purifier, avoid the first inner diameter being too large and resulting in increased backflow, and avoid the situation where the first inner diameter is too small and resulting in insufficient air intake of the impeller.

[0010] In some technical solutions of the utility model, optionally, the axial height of the impeller is a first height; the axial height of the guide ring of the impeller is a second height; the ratio of the second height to the first height is greater than or equal to 0.18 and less than or equal to 0.32.

[0011] In this technical solution, the height of the impeller in the axial direction is the first height, the height of the guide ring in the axial direction of the impeller is the second height, and the ratio of the second height to the first height is greater than or equal to 0.18 and less than or equal to 0.32, so as to adjust the height of the impeller in the axial direction and the height of the guide ring in the axial direction of the impeller. By setting the ratio of the second height to the first height to 0.18 to 0.32, the guiding effect of the guide ring on the airflow can be improved, the air intake resistance of the impeller can be reduced, so as to improve the work efficiency of the impeller and increase the air volume of the purifier.

[0012] In some technical solutions of the present utility model, optionally, the height of the impeller in the axial direction is a first height; and the ratio of the first radius to the first height is greater than or equal to 0.16 and less than or equal to 0.31.

[0013] In this technical solution, the height of the impeller in the axial direction is the first height; the ratio of the first radius to the first height is greater than or equal to 0.16 and less than or equal to 0.31, so as to adjust the size of the guide ring. By setting the ratio of the first radius to the first height to 0.16 to 0.31, the guide ring can improve the airflow guiding effect, improve the air intake efficiency of the impeller, ensure the air intake efficiency of the impeller inlet and the smooth air outlet, thereby increasing the air volume and reducing the noise of the purifier when it is working.

[0014] In some technical solutions of the utility model, optionally, the axial height of the impeller is a first height; the axial height of the cover body of the impeller is a third height; the ratio of the third height to the first height is greater than or equal to 0.12 and less than or equal to 0.22.

[0015] In this technical solution, the axial height of the impeller is the first height; the axial height of the cover body of the impeller is the third height; the ratio of the third height to the first height is greater than or equal to 0.12 and less than or equal to 0.22, so as to adjust the height of the cover body. Since the cover body is located at the air outlet of the impeller, by setting the ratio of the third height to the first height to 0.12 to 0.22, the air outlet is smoother, which can ensure that the air intake at the guide ring is smoother, thereby improving the guide effect.

[0016] In some technical solutions of the utility model, the cover body optionally includes a mounting portion and a guide portion. The guide portion is arranged along the circumference of the mounting portion, and the guide portion extends from a side close to the mounting portion to a side away from the mounting portion in a direction away from the guide ring; wherein the angle between the guide portion and a radial cross section of the impeller is greater than or equal to 22 degrees and less than or equal to 34 degrees.

[0017] In this technical solution, the cover body includes a mounting portion and a guide portion, and the guide portion is arranged along the circumference of the mounting portion to achieve the installation and fixation of the guide portion. The guide portion extends from a side close to the mounting portion to a side away from the mounting portion in a direction away from the guide ring to achieve the arrangement of the guide portion. The angle between the guide portion and a radial cross section of the impeller is greater than or equal to 22 degrees and less than or equal to 34 degrees to achieve the adjustment of the size of the guide portion, so that the opening of the guide portion gradually increases from the side close to the mounting portion to the side away from the mounting portion, thereby making the airflow discharge in the guide portion smoother, avoiding the generation of turbulence and eddy currents at the position of the guide portion, thereby improving the guide effect and reducing the noise generated during operation.

[0018] In some technical solutions of the present utility model, optionally, the diameter of the side of the guide ring away from the cover body is smaller than the diameter of the side of the guide ring close to the cover body.

[0019] In this technical solution, the diameter of the side of the guide ring away from the cover body is smaller than the diameter of the side of the guide ring close to the cover body, so as to adjust the size of the inner wall of the guide ring. By optimizing the diameter of the guide ring, the eddy currents and turbulences generated when the airflow passes through the impeller can be reduced, thereby improving the airflow guidance effect and thus improving the purification efficiency.

[0020] In some technical solutions of the utility model, optionally, the housing includes an air intake grille, a filter component, a housing, a volute and an air outlet grille. The air intake grille is provided with an air inlet; the filter component is provided in the air intake grille, and the filter component is provided with an air intake passage; the purifier further includes a volute and an air outlet grille. The volute is provided in the housing, communicated with the air intake passage, and the impeller is located in the volute; the air outlet grille is connected to the housing, and is located on a side of the volute away from the air intake passage.

[0021] In this technical solution, the shell includes an air intake grille, a filter component, a shell, a volute and an air outlet grille. The air intake grille is provided with an air inlet so that gas can enter the purifier through the air intake grille. The filter component is arranged in the air intake grille, and the filter component is provided with an air intake channel to achieve the installation and fixation of the filter component, so that external air can enter the filter component through the air intake grille for filtering. The purifier also includes a volute and an air outlet grille. The volute is arranged in the shell and is connected to the air intake channel. The impeller is located in the volute to achieve the installation of the volute, so that the volute can provide an installation space for the impeller. The air outlet grille is connected to the shell and is located on the side of the volute away from the air intake channel to achieve the installation and fixation of the air outlet grille, so that the purified air can be discharged to the outside through the air outlet grille to achieve the discharge of the purified air.

[0022] In some technical solutions of the utility model, the purifier may further include a bracket and a driving component. The bracket is located in the volute and has an air outlet passage between the bracket and the inner wall of the volute; the mounting end of the driving component is connected to the bracket, and the driving end of the driving component is connected to the impeller to drive the impeller to rotate.

[0023] In this technical solution, the purifier also includes a bracket and a driving component. The bracket is located in the volute, and there is an air outlet channel between the bracket and the inner wall of the volute to achieve the installation and fixation of the bracket, so that the purified air can be discharged through the air outlet channel. The mounting end of the driving component is connected to the bracket, and the driving end of the driving component is connected to the impeller, which can drive the impeller to rotate to achieve the installation and fixation of the driving component, and then provide driving force for the rotation of the impeller, so that the impeller can form a high negative pressure area nearby after rotation, so that a pressure difference can be formed between the air intake grille and the impeller, so that air can be sucked in for purification.

[0024] In some technical solutions of the utility model, optionally, the purifier further includes a guide vane, and the guide vanes are multiple, and the multiple guide vanes are located in the air outlet channel and connected to the bracket.

[0025] In this technical solution, the purifier also includes guide vanes, which are multiple. The multiple guide vanes are located in the air outlet channel and are connected to the bracket to achieve the installation and fixation of the multiple guide vanes. By arranging multiple guide vanes in the air outlet channel, the guide vanes can purify the air discharged by the impeller to ensure that the purified air can flow out in an orderly and smooth manner, reduce the turbulence and resistance of the airflow in the air outlet channel, and improve the overall efficiency of the air purifier.

[0026] In some technical solutions of the utility model, the purifier may further include a collector and a mesh cover. The collector is connected to the volute and is located on a side of the impeller close to the air inlet channel; the mesh cover is arranged on the collector.

[0027] In this technical solution, the purifier also includes a collector and a mesh cover. The collector is connected to the volute and is located on the side of the impeller close to the air inlet channel to achieve the installation and fixation of the collector, so that the collector can guide the air entering the air inlet channel and evenly introduce it into the fan, which can reduce the unevenness of the airflow, reduce the flow loss of the airflow, and improve the purification efficiency of the air purifier. The mesh cover is set on the collector to achieve the installation and fixation of the mesh cover, so that the mesh cover can filter impurities in the air to avoid entering the wind wheel and causing damage to the wind wheel, thereby extending the service life of the air purifier.

[0028] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0030] Figure 1 One of the structural schematic diagrams of an impeller according to an embodiment of the utility model is shown;

[0031] Figure 2 A second structural schematic diagram of an impeller according to an embodiment of the utility model is shown;

[0032] Figure 3 A third structural schematic diagram of an impeller according to an embodiment of the utility model is shown;

[0033] Figure 4 for Figure 3 KK cross-sectional structural schematic diagram of the impeller of the illustrated embodiment;

[0034] Figure 5 A stress simulation diagram of an impeller according to an embodiment of the utility model is shown;

[0035] Figure 6A deformation simulation diagram of an impeller according to an embodiment of the utility model is shown;

[0036] Figure 7 One of the structural schematic diagrams of a purifier according to an embodiment of the utility model is shown;

[0037] Figure 8 A second structural schematic diagram of a purifier according to an embodiment of the utility model is shown;

[0038] Fig. 9 for Figure 8 LL cross-sectional structural schematic diagram of the purifier of the illustrated embodiment.

[0039] in, Figures 1 to 9 The corresponding relationship between the reference numerals and component names in the figure is:

[0040] 100 impeller, 110 cover body, 112 mounting portion, 114 guide portion, 116 mounting hole, 120 blades, 130 guide ring, 200 purifier, 202 air inlet grille, 204 filter component, 206 air inlet channel, 208 shell, 210 volute, 212 air outlet grille, 214 bracket, 216 driving component, 218 guide vane, 220 air outlet channel, 222 collector, 224 mesh cover, 226 inner wall, 228 air inlet, 230 air outlet. DETAILED DESCRIPTION

[0041] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0042] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0043] Refer to the following Figures 1 to 9 A purifier 200 according to some embodiments of the present invention is described.

[0044] like Figure 1 and Figure 2 As shown, Figure 1 One of the structural schematic diagrams of an impeller 100 according to an embodiment of the utility model is shown; Figure 2The second structural schematic diagram of the impeller 100 according to an embodiment of the utility model is shown; in an embodiment of the present application, a purifier 200 is provided, including a housing 208, a filter component 204 and an impeller 100. The housing 208 is provided with an air inlet 228 and an air outlet 230; the filter component 204 is provided at the air inlet 228; the impeller 100 is provided in the housing 208, and can drive the gas to enter the housing 208 from the air inlet 228, and after flowing through the filter component 204, it flows out of the housing 208 from the air outlet 230, and the impeller 100 includes a cover 110, blades 120 and a guide ring 130; the number of blades 120 is multiple, and the multiple blades 120 are arranged along the impeller 100. The impeller 100 is circumferentially arranged and connected to the cover 110; the guide ring 130 is located on the side of the blade 120 away from the cover 110 and is connected to the blade 120; wherein the guide ring 130 extends in an arc shape from the side away from the cover 110 to the side close to the cover 110 in the axial direction away from the impeller 100; on an axial section of the impeller 100, the radius of the outer surface of the guide ring 130 is a first radius, and the first radius is greater than or equal to 7.8 mm and less than or equal to 20.6 mm; Figure 3 and Figure 4 As shown, Figure 3 The third structural schematic diagram of the impeller 100 according to an embodiment of the utility model is shown; Figure 4 for Figure 3 The KK cross-sectional structure diagram of the impeller 100 of the illustrated embodiment; on an axial cross section of the impeller 100, the central angle corresponding to the outer surface of the guide ring 130 is greater than or equal to 52.6 degrees and less than or equal to 86.3 degrees.

[0045] In this embodiment, the purifier 200 includes a housing 208, a filter component 204 and an impeller 100. The housing 208 is provided with an air inlet 228 and an air outlet 230, so that the purifier 200 can introduce external air into the purifier 200 for purification, and then discharge it through the air outlet 230. The filter component 204 is arranged at the air inlet 228, so that the air can be filtered by the filter component 204 after entering the air inlet 228. The impeller 100 is arranged in the housing 208, and can drive the gas to enter the housing 208 from the air inlet 228, and after flowing through the filter component 204, it flows out of the housing 208 from the air outlet 230, so as to realize the installation and fixation of the impeller 100, so that the impeller 100 can accelerate the circulation of the gas, so as to realize the guidance of the airflow, promote the circulation of the air and improve the purification efficiency. The impeller 100 includes a cover 110, a blade 120 and a guide ring 130. There are multiple blades 120, which are arranged along the circumference of the impeller 100 and connected to the cover body 110 to achieve the installation and fixation of the multiple blades 120, so that the multiple blades 120 can inhale air when they rotate, thereby improving the efficiency of air purification. The guide ring 130 is located on the side of the blade 120 away from the cover body 110, and is connected to the blade 120 to achieve the installation and fixation of the guide ring 130, so that the guide ring 130 can guide the airflow to ensure that the airflow can be purified by the impeller 100. The guide ring 130 extends in an arc shape from the side away from the cover body 110 to the side close to the cover body 110 away from the impeller 100, that is, the guide ring 130 is arranged in an arc shape on one side of the blade 120 to achieve the arrangement of the guide ring 130. On an axial section of the impeller 100, the radius of the outer surface of the guide ring 130 is a first radius, and the first radius is greater than or equal to 7.8 mm and less than or equal to 20.6 mm, so as to adjust the radius of the outer surface of the guide ring 130. By setting the radius of the outer surface of the guide ring 130 to 7.8 mm to 20.6 mm, the guide ring 130 can enhance the guiding effect of the airflow, so that the airflow can pass through the impeller 100 more quickly, reducing the resistance of the impeller 100 to the airflow, thereby improving the work efficiency of the impeller 100 and increasing the air volume of the purifier 200. On an axial section of the impeller 100, the central angle corresponding to the outer surface of the guide ring 130 is greater than or equal to 52.6 degrees and less than or equal to 86.3 degrees, so as to adjust the size of the outer surface of the guide ring 130. By setting the central angle corresponding to the outer surface of the guide ring 130 to 52.6 degrees to 86.3 degrees, the work efficiency of the impeller 100 can be improved and the air volume of the purifier 200 can be improved.The present application forms a smooth airflow channel by setting the guide ring 130 to an arc shape, so that the resistance of the airflow can be reduced when passing through the impeller 100, and the airflow can pass through the impeller 100 more quickly, thereby ensuring the air intake efficiency at the inlet of the impeller 100 and smooth air outlet at the outlet, thereby increasing the air volume after the airflow is purified. By optimizing the design of the guide ring 130, the generation of turbulence and eddy currents can also be reduced, thereby reducing the noise generated when the airflow passes through, solving the problem of "unsmooth airflow guidance", and thereby improving the work efficiency of the blade 120.

[0046] Specifically, the first radius is equal to 7.8 millimeters.

[0047] Specifically, the first radius is equal to 14 millimeters.

[0048] Specifically, the first radius is equal to 20.6 millimeters.

[0049] Specifically, the central angle corresponding to the outer surface of the guide ring 130 is equal to 52.6 degrees.

[0050] Specifically, the central angle corresponding to the outer surface of the guide ring 130 is equal to 70 degrees.

[0051] Specifically, the central angle corresponding to the outer surface of the guide ring 130 is equal to 86.3 degrees.

[0052] Specifically, in Figure 2 In FIG. 1 , arrow I indicates the circumferential direction of the impeller 100 .

[0053] Specifically, during the operation of the impeller 100, the airflow enters the blades 120 through the guide ring 130, the blades 120 perform work on the airflow, and finally flows out of the blades 120 along the cover 110. The cover 110 and the guide ring 130 can not only ensure the strength of the impeller 100 and prevent it from being damaged during a fall, but also guide the airflow.

[0054] Specifically, in Figure 4 In FIG. 1 , N represents the central angle corresponding to the outer surface of the guide ring 130 , and the arrow G represents the axial direction of the impeller 100 .

[0055] In addition, the purifier 200 in the above embodiment provided by the utility model may also have the following additional technical features:

[0056] This embodiment provides a purifier 200. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0057] like Figure 4As shown, the outer diameter of the impeller 100 is the first outer diameter A; the inner diameter of the guide ring 130 away from the cover body 110 is the first inner diameter B; the ratio of the first inner diameter B to the first outer diameter A is greater than or equal to 0.65 and less than or equal to 0.88.

[0058] In this embodiment, the outer diameter of the impeller 100 is a first outer diameter A; the inner diameter of the side of the guide ring 130 away from the cover body 110 is a first inner diameter B; the ratio of the first inner diameter B to the first outer diameter A is greater than or equal to 0.65 and less than or equal to 0.88, so as to achieve the size adjustment of the two ends of the guide ring 130 along the axial direction of the impeller 100, thereby achieving the adjustment of the size of the guide ring 130. By setting the ratio of the first inner diameter B to the first outer diameter A to 0.65 to 0.88, the guide ring 130 can enhance the guiding effect on the airflow, so that the airflow can pass through the impeller 100 more quickly, reducing the resistance of the impeller 100 to the airflow, thereby improving the air intake efficiency of the impeller 100, so as to increase the air volume of the purifier 200, avoid the first inner diameter B being too large and causing an increase in backflow, and avoid the first inner diameter B being too small and causing insufficient air intake of the impeller 100.

[0059] Specifically, the ratio of the first inner diameter B to the first outer diameter A is equal to 0.65.

[0060] Specifically, the ratio of the first inner diameter B to the first outer diameter A is equal to 0.88.

[0061] Specifically, the ratio of the first inner diameter B to the first outer diameter A is equal to 0.77.

[0062] Specifically, the first outer diameter A is greater than or equal to 190 mm and less than or equal to 210 mm.

[0063] Specifically, the first outer diameter A is equal to 190 mm.

[0064] Specifically, the first outer diameter A is equal to 198 mm.

[0065] Specifically, the first outer diameter A is equal to 210 mm.

[0066] This embodiment provides a purifier 200. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0067] like Figure 4 As shown, the axial height of the impeller 100 is a first height C; the axial height of the guide ring 130 of the impeller 100 is a second height D; the ratio of the second height D to the first height C is greater than or equal to 0.18 and less than or equal to 0.32.

[0068] In this embodiment, the height of the impeller 100 in the axial direction is a first height C, the height of the guide ring 130 in the axial direction of the impeller 100 is a second height D, and the ratio of the second height D to the first height C is greater than or equal to 0.18 and less than or equal to 0.32, so as to adjust the height of the impeller 100 in the axial direction and the height of the guide ring 130 in the axial direction of the impeller 100. By setting the ratio of the second height D to the first height C to 0.18 to 0.32, the guiding effect of the guide ring 130 on the airflow can be improved, the intake resistance of the impeller 100 can be reduced, so that the working efficiency of the impeller 100 can be improved, and the air volume of the purifier 200 can be increased.

[0069] Specifically, the ratio of the second height D to the first height C is equal to 0.18.

[0070] Specifically, the ratio of the second height D to the first height C is equal to 0.26.

[0071] Specifically, the ratio of the second height D to the first height C is equal to 0.32.

[0072] Specifically, the first height C is greater than or equal to 110 mm and less than or equal to 130 mm.

[0073] Specifically, the first height C is equal to 110 mm.

[0074] Specifically, the first height C is equal to 118 mm.

[0075] Specifically, the first height C is equal to 130 mm.

[0076] This embodiment provides a purifier 200. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0077] like Figure 4 As shown, on an axial section of the impeller 100 , the axial height of the impeller 100 is a first height C; the ratio of the first radius E to the first height C is greater than or equal to 0.16 and less than or equal to 0.31.

[0078] In this embodiment, the height of the impeller 100 in the axial direction is the first height C; the ratio of the first radius E to the first height C is greater than or equal to 0.16 and less than or equal to 0.31, so as to adjust the size of the guide ring 130. By setting the ratio of the first radius E to the first height C to 0.16 to 0.31, the guide effect of the guide ring 130 on the airflow can be improved, the air intake efficiency of the impeller 100 can be improved, the air intake efficiency of the impeller 100 inlet and the smooth air outlet can be ensured, so that the air volume can be increased, and the noise of the purifier 200 when working can be reduced.

[0079] Specifically, the ratio of the first radius E to the first height C is equal to 0.16.

[0080] Specifically, the ratio of the first radius E to the first height C is equal to 0.24.

[0081] Specifically, the ratio of the first radius E to the first height C is equal to 0.31.

[0082] This embodiment provides a purifier 200. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0083] like Figure 4 As shown, the axial height of the impeller 100 is a first height C; the axial height of the cover 110 of the impeller 100 is a third height F; the ratio of the third height F to the first height C is greater than or equal to 0.12 and less than or equal to 0.22.

[0084] In this embodiment, the axial height of the impeller 100 is a first height C; the axial height of the cover body 110 of the impeller 100 is a third height F; the ratio of the third height F to the first height C is greater than or equal to 0.12 and less than or equal to 0.22, so as to adjust the height of the cover body 110. Since the cover body 110 is located at the air outlet of the impeller 100, by setting the ratio of the third height F to the first height C to 0.12 to 0.22, the air outlet is smoother, thereby ensuring that the air intake at the position of the guide ring 130 is also smoother, thereby improving the guide effect.

[0085] Specifically, the ratio of the third height F to the first height C is equal to 0.12.

[0086] Specifically, the ratio of the third height F to the first height C is equal to 0.14.

[0087] Specifically, the ratio of the third height F to the first height C is equal to 0.22.

[0088] This embodiment provides a purifier 200. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0089] like Figure 3 and Figure 4 As shown, the cover body 110 includes a mounting portion 112 and a guide portion 114. The guide portion 114 is arranged along the circumference of the mounting portion 112, and the guide portion 114 extends from a side close to the mounting portion 112 to a side away from the mounting portion 112 in a direction away from the guide ring 130; wherein, the angle between the guide portion 114 and a radial cross section of the impeller 100 is greater than or equal to 22 degrees and less than or equal to 34 degrees.

[0090] In this embodiment, the cover 110 includes a mounting portion 112 and a guide portion 114, and the guide portion 114 is arranged along the circumference of the mounting portion 112 to achieve the installation and fixation of the guide portion 114. The guide portion 114 extends from a side close to the mounting portion 112 to a side away from the mounting portion 112 in a direction away from the guide ring 130 to achieve the arrangement of the guide portion 114. The angle between the guide portion 114 and a radial cross section of the impeller 100 is greater than or equal to 22 degrees and less than or equal to 34 degrees to achieve the adjustment of the size of the guide portion 114, so that the opening of the guide portion 114 gradually increases from the side close to the mounting portion 112 to the side away from the mounting portion 112, so that the airflow is discharged more smoothly in the guide portion 114, avoiding the generation of turbulence and vortex at the position of the guide portion 114, thereby improving the guide effect and reducing the noise generated during operation.

[0091] Specifically, in Figure 4 In FIG. 1 , M represents the angle between the guide portion 114 and a radial cross section of the impeller 100 .

[0092] Specifically, in Figure 3 , arrow J indicates the circumferential direction of the mounting portion 112 .

[0093] Specifically, the angle between the guide portion 114 and a radial cross section of the impeller 100 is equal to 22 degrees.

[0094] Specifically, the angle between the guide portion 114 and a radial cross section of the impeller 100 is equal to 27.4 degrees.

[0095] Specifically, the angle between the guide portion 114 and a radial cross section of the impeller 100 is equal to 34 degrees.

[0096] This embodiment provides a purifier 200. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0097] like Figure 4 As shown, the diameter of the side of the guide ring 130 away from the cover body 110 is smaller than the diameter of the side of the guide ring 130 close to the cover body 110 .

[0098] In this embodiment, the diameter of the side of the guide ring 130 away from the cover body 110 is smaller than the diameter of the side of the guide ring 130 close to the cover body 110, so as to adjust the inner wall size of the guide ring 130. By optimizing the diameter of the guide ring 130, the eddy current and turbulence generated when the airflow passes through the impeller 100 can be reduced, the airflow guidance effect can be improved, and thus the purification efficiency can be improved.

[0099] Specifically, in Figure 4In the figure, arrow O indicates the diameter of the side of the guide ring 130 close to the cover body 110 , and the diameter of the side of the guide ring 130 close to the cover body 110 may be the inner diameter or outer diameter of the side of the guide ring 130 close to the cover body 110 .

[0100] Specifically, the present application sets the ratio of the third height F to the first height C to 0.12 to 0.22, sets the ratio of the first radius E to the first height C to 0.16 to 0.31, sets the ratio of the second height D to the first height C to 0.18 to 0.32, sets the ratio of the first inner diameter B to the first outer diameter A to 0.65 to 0.88, sets the angle of the first central angle to the third value to the fourth value, and sets the first curvature to the first value to the second value, thereby optimizing the design of the guide ring 130 and the cover body 110, which can not only ensure the intake efficiency of the impeller 100, but also ensure the strength of the impeller 100. The simulation results are as follows: Figure 5 and Figure 6 As shown, Figure 5 A stress simulation diagram of an impeller 100 according to an embodiment of the utility model is shown; Figure 6 A deformation simulation diagram of an impeller 100 according to an embodiment of the utility model is shown; while ensuring that the impeller 100 is not damaged when falling, the airflow is also guided, and the strength of the impeller 100 can be increased by about 8%, ensuring the air intake efficiency at the inlet of the impeller 100 and smooth air discharge at the outlet, thereby improving the work efficiency of the impeller 100, and the final flow rate can be increased by about 6%, thereby solving the problems of small air volume and high noise of the current purifier 200.

[0101] Specifically, Figure 5 As shown, Figure 5 FIG. 1 shows a stress simulation diagram of an impeller 100 according to an embodiment of the present utility model; FIG. Figure 5 In the experiment, an impeller 100 with a new blade design is used to perform an equivalent stress simulation experiment. The type of stress is Equivalent (von-Mises) Stress, i.e., von-Mises equivalent stress, and the unit is MPa. Figure 5 , the minimum value (Min) of equivalent stress is 0, and the maximum value (Max) of equivalent stress is 19.208 MPa.

[0102] Specifically, Figure 6 As shown, Figure 6 A deformation simulation diagram of an impeller 100 according to an embodiment of the present utility model is shown. Figure 6In the simulation experiment, the impeller 100 with a new blade design is used to simulate the total deformation of the impeller 100. Type represents the type, and the unit is millimeter. Figure 6 In the figure, the minimum deformation (Min) is 0 and the maximum deformation (Max) is 1.15 mm.

[0103] Specifically, Figure 7 and Figure 8 As shown, Figure 7 One of the structural schematic diagrams of a purifier 200 according to an embodiment of the utility model is shown; Figure 8 The second structural schematic diagram of the purifier 200 according to an embodiment of the present utility model is shown; the purifier 200 is an air purifier, and the shell 208 is provided with an air inlet 228 and an air outlet 230.

[0104] This embodiment provides a purifier 200. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0105] like Fig. 9 As shown, Fig. 9 for Figure 8 The LL cross-sectional structure diagram of the purifier 200 of the illustrated embodiment, the housing 208 includes an air inlet grille 202, a filter component 204, a housing 208, a volute 210 and an air outlet grille 212. The air inlet grille 202 is provided with an air inlet 228; the filter component 204 is provided in the air inlet grille 202, and the filter component 204 is provided with an air inlet passage 206; the purifier 200 further includes a volute 210 and an air outlet grille 212. The volute 210 is provided in the housing 208, communicated with the air inlet passage 206, and the impeller 100 is located in the volute 210; the air outlet grille 212 is connected to the housing 208, and is located on the side of the volute 210 away from the air inlet passage 206.

[0106] In this embodiment, the housing 208 includes an air inlet grille 202, a filter component 204, a housing 208, a volute 210, and an air outlet grille 212. The air inlet grille 202 is provided with an air inlet 228 so that gas can enter the purifier 200 through the air inlet grille 202. The filter component 204 is arranged in the air inlet grille 202, and the filter component 204 is provided with an air inlet channel 206 to achieve the installation and fixation of the filter component 204, so that external air can enter the filter component 204 through the air inlet grille 202 for filtering. The purifier 200 also includes a volute 210 and an air outlet grille 212. The volute 210 is arranged in the housing 208 and communicated with the air inlet channel 206. The impeller 100 is located in the volute 210 to achieve the installation of the volute 210, so that the volute 210 can provide an installation space for the impeller 100. The air outlet grille 212 is connected to the shell 208 and is located on the side of the volute 210 away from the air inlet channel 206 to achieve the installation and fixation of the air outlet grille 212, so that the purified air can be discharged to the outside through the air outlet grille 212 to achieve the discharge of the purified air.

[0107] Specifically, the air outlet grille 212 is provided with an air outlet 230 .

[0108] This embodiment provides a purifier 200. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0109] like Fig. 9 As shown, the purifier 200 further includes a bracket 214 and a driving component 216. The bracket 214 is located in the volute 210, and has an air outlet passage 220 between the bracket 214 and the inner wall 226 of the volute 210; the mounting end of the driving component 216 is connected to the bracket 214, and the driving end of the driving component 216 is connected to the impeller 100, and can drive the impeller 100 to rotate.

[0110] In this embodiment, the purifier 200 further includes a bracket 214 and a driving component 216. The bracket 214 is located in the volute 210, and an air outlet channel 220 is provided between the bracket 214 and the inner wall 226 of the volute 210 to achieve the installation and fixation of the bracket 214, so that the purified air can be discharged through the air outlet channel 220. The mounting end of the driving component 216 is connected to the bracket 214, and the driving end of the driving component 216 is connected to the impeller 100, which can drive the impeller 100 to rotate, so as to achieve the installation and fixation of the driving component 216, and then provide a driving force for the rotation of the impeller 100, so that the impeller 100 can form a high negative pressure area nearby after the rotation, so that a pressure difference can be formed between the air intake grille 202 and the impeller 100, so that air can be sucked in for purification.

[0111] Specifically, a mounting hole 116 is provided on the cover body 110 . By providing the mounting hole 116 , the output shaft of the driving component 216 is conveniently connected to the impeller 100 through the mounting hole 116 , thereby driving the impeller 100 .

[0112] This embodiment provides a purifier 200. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0113] like Fig. 9 As shown, the purifier 200 further includes a guide vane 218 , and there are a plurality of guide vanes 218 . The plurality of guide vanes 218 are located in the air outlet channel 220 and connected to the bracket 214 .

[0114] In this embodiment, the purifier 200 also includes a guide vane 218, and there are multiple guide vanes 218. The multiple guide vanes 218 are located in the air outlet channel 220 and are connected to the bracket 214 to achieve the installation and fixation of the multiple guide vanes 218. By arranging multiple guide vanes 218 in the air outlet channel 220, the guide vanes 218 can purify the air discharged by the impeller 100 to ensure that the purified air can flow out in an orderly and smooth manner, reduce the turbulence and resistance of the airflow in the air outlet channel 220, and improve the overall efficiency of the air purifier.

[0115] This embodiment provides a purifier 200. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0116] like Fig. 9 As shown, the purifier 200 further includes a collector 222 and a mesh cover 224. The collector 222 is connected to the volute 210 and is located on a side of the impeller 100 close to the air inlet channel 206; the mesh cover 224 is disposed on the collector 222.

[0117] In this embodiment, the purifier 200 further includes a collector 222 and a mesh cover 224. The collector 222 is connected to the volute 210 and is located on the side of the impeller 100 close to the air inlet channel 206 to achieve the installation and fixation of the collector 222, so that the collector 222 can guide the air entering the air inlet channel 206 and evenly introduce it into the fan, which can reduce the unevenness of the air flow, reduce the flow loss of the air flow, and improve the purification efficiency of the air purifier. The mesh cover 224 is set on the collector 222 to achieve the installation and fixation of the mesh cover 224, so that the mesh cover 224 can filter impurities in the air to avoid entering the wind wheel and causing damage to the wind wheel, thereby extending the service life of the air purifier.

[0118] Specifically, the filter component 204 is a filter element, the mesh cover 224 is a front mesh cover 224, and the driving component 216 is a motor. The main working principle of the purifier 200 is: the air to be purified enters through the air intake grille 202, the air is purified by the filter element, and then passes through the front mesh cover 224, the collector 222, the volute 210, the impeller 100, the guide vane 218, and finally the purified air is discharged through the rear air outlet grille 212, and the cycle is repeated to achieve the purpose of purifying the air. The motor mainly provides the driving force for the impeller 100 to rotate. The impeller 100 rotates, resulting in a high negative pressure area near the impeller 100. In this way, a pressure difference is formed between the air intake grille 202 and the impeller 100, so that the air can be sucked in for purification. Therefore, the core component that determines the performance of the entire air purifier is the impeller 100, which mainly determines the air volume, power and noise of the purifier 200.

[0119] In the claims, specification and drawings of the present invention, the term "multiple" refers to two or more than two. Unless otherwise clearly defined, the orientation or positional relationship indicated by the terms "upper" and "lower" is based on the orientation or positional relationship shown in the drawings, which is only for the purpose of more conveniently describing the present invention and making the description process easier, rather than for indicating or implying that the device or element referred to must have the specific orientation described, be constructed and operated in a specific orientation, so these descriptions cannot be understood as limitations on the present invention; the terms "connect", "install", "fix" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection between multiple objects, or a detachable connection between multiple objects, or an integral connection; it can be a direct connection between multiple objects, or an indirect connection between multiple objects through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood based on the specific circumstances of the above data.

[0120] In the claims, specification and drawings of the present invention, the description of the terms "one embodiment", "some embodiments", "specific embodiments" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In the claims, specification and drawings of the present invention, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0121] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A purifier, characterized in that: include: A housing, wherein the housing is provided with an air inlet and an air outlet; A filter component, wherein the filter component is arranged at the air inlet; An impeller, the impeller being arranged on the housing and capable of driving the gas to enter the housing from the air inlet, and to flow out of the housing from the air outlet after passing through the filter component, the impeller comprising a cover, blades and a guide ring; The number of the blades is multiple, and the multiple blades are arranged along the circumference of the impeller and connected to the cover body; The guide ring is located on a side of the blade away from the cover body and is connected to the blade; Wherein, the guide ring extends in an arc shape from a side away from the cover body to a side close to the cover body and away from the axial direction of the impeller; On an axial cross section of the impeller, the radius of the outer surface of the guide ring is a first radius, and the first radius is greater than or equal to 7.8 mm and less than or equal to 20.6 mm; On an axial section of the impeller, a central angle corresponding to an outer surface of the guide ring is greater than or equal to 52.6 degrees and less than or equal to 86.3 degrees.

2. The purifier according to claim 1, characterized in that: The outer diameter of the impeller is a first outer diameter; The inner diameter of the guide ring on the side away from the cover body is a first inner diameter; A ratio of the first inner diameter to the first outer diameter is greater than or equal to 0.65 and less than or equal to 0.

88.

3. The purifier according to claim 1, characterized in that: The height of the impeller in the axial direction is a first height; The height of the guide ring in the axial direction of the impeller is a second height; A ratio of the second height to the first height is greater than or equal to 0.18 and less than or equal to 0.

32.

4. The purifier according to claim 1, characterized in that: The height of the impeller in the axial direction is a first height; A ratio of the first radius to the first height is greater than or equal to 0.16 and less than or equal to 0.

31.

5. The purifier according to claim 1, characterized in that: The height of the impeller in the axial direction is a first height; The height of the cover body in the axial direction of the impeller is a third height; A ratio of the third height to the first height is greater than or equal to 0.12 and less than or equal to 0.

22.

6. The purifier according to claim 1, characterized in that: The cover body comprises: Installation Department; A guide portion, the guide portion is arranged along the circumference of the mounting portion, and the guide portion extends from a side close to the mounting portion to a side away from the mounting portion in a direction away from the guide ring; Wherein, the angle between the guide portion and a radial cross section of the impeller is greater than or equal to 22 degrees and less than or equal to 34 degrees.

7. The purifier according to any one of claims 1 to 6, characterized in that: The diameter of the side of the guide ring away from the cover body is smaller than the diameter of the side of the guide ring close to the cover body.

8. The purifier according to any one of claims 1 to 6, characterized in that: The housing comprises an air intake grille, and the air intake grille is provided with the air intake port; The filter component is arranged in the air intake grille, and the filter component is provided with an air intake passage; The purifier also includes: A volute, the volute is arranged in the housing and communicated with the air inlet passage, and the impeller is located in the volute; An air outlet grille is connected to the shell and is located at a side of the volute away from the air inlet passage.

9. The purifier according to claim 8, characterized in that: Also includes: A bracket, the bracket is located in the volute and has an air outlet passage between the bracket and the inner wall of the volute; A driving component, wherein the mounting end of the driving component is connected to the bracket, and the driving end of the driving component is connected to the impeller, and can drive the impeller to rotate.

10. The purifier according to claim 9, characterized in that: Also includes: Guide vanes, the guide vanes are multiple, and the multiple guide vanes are located in the air outlet channel and connected to the bracket.

11. The purifier according to claim 8, characterized in that: Also includes: A collector, the collector is connected to the volute and is located on a side of the impeller close to the air inlet passage; A mesh cover is arranged on the current collector.

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