CN218624737U - Impeller structure for high-efficiency centrifugal blower - Google Patents
Impeller structure for high-efficiency centrifugal blower Download PDFInfo
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- CN218624737U CN218624737U CN202223260418.5U CN202223260418U CN218624737U CN 218624737 U CN218624737 U CN 218624737U CN 202223260418 U CN202223260418 U CN 202223260418U CN 218624737 U CN218624737 U CN 218624737U
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Abstract
The utility model discloses an impeller structure for high-efficient centrifugal blower, a serial communication port, include: the upper cover plate is provided with an air inlet part; lower apron, with the coaxial setting of upper cover plate, the upper cover plate outer fringe with air-out portion has between the lower cover plate outer fringe, be provided with a plurality of blades between upper cover plate and the lower apron, two the ventiduct has between the blade, the both ends of ventiduct respectively with air inlet portion with air-out portion intercommunication, the blade cornerite is 57.3 to 45.2. The utility model discloses can improve centrifugal blower's blast air efficiency, reduce the energy consumption.
Description
Technical Field
The utility model relates to an air-blower technical field especially relates to a high-efficient centrifugal air-blower's impeller structure.
Background
The centrifugal blower uses the centrifugal force generated by a rotating wheel with many blades to squeeze air to reach a certain air volume and pressure. Small centrifugal blowers are widely used in smoke purifiers, medical ventilators, medical equipment, household air charging equipment, and household dust suction equipment. However, the blowing efficiency of various small centrifugal blowers is low due to the volume limitation, wherein most of the centrifugal blowers are not designed reasonably, and some of the centrifugal blowers are not designed reasonably, so that the useful power used by the whole blower is reduced, and the energy is wasted. There is a need for an efficient centrifugal blower.
SUMMERY OF THE UTILITY MODEL
The utility model provides an impeller structure for high-efficient centrifugal blower, its blast air efficiency that can improve centrifugal blower reduces the energy consumption.
In order to solve the technical problem, the utility model provides an impeller structure for high-efficient centrifugal blower, a serial communication port, include:
the upper cover plate is provided with an air inlet part;
the lower cover plate, with the upper cover plate is coaxial to be set up, the upper cover plate outer fringe with air-out portion has between the lower cover plate outer fringe, be provided with a plurality of blades, two between upper cover plate and the lower cover plate the ventiduct has between the blade, the both ends of ventiduct respectively with air inlet portion with air-out portion intercommunication, the blade cornerite is 57.3 to 45.2.
Preferably, in the above aspect, the blade has a middle portion thicker than a leading edge and a trailing edge, and the leading edge has a dividing portion at an end thereof.
Preferably, the blade wrap angle is 57.3 °.
Preferably, in the above aspect, the blade wrap angle is 45.2 °.
Preferably, in the above technical solution, the thickness of the leading edge of the blade is 0.8mm, and the leading edge of the blade is provided with a pitch angle of 40.4 °.
Preferably, the thickness of the trailing edge of the blade is 0.7mm, and the trailing edge of the blade is provided with a 49.8-degree inclination angle.
Preferably, in the above technical solution, the number of the blades is 13, and the 13 blades are uniformly distributed between the upper cover plate and the lower cover plate.
Preferably, the upper end of the upper cover plate is 0.5mm higher than the upper end of the lower cover plate.
The utility model provides an impeller structure for high-efficient centrifugal blower, a serial communication port, include: the upper cover plate is provided with an air inlet part; the lower cover plate is coaxial with the upper cover plate, an air outlet part is arranged between the outer edge of the upper cover plate and the outer edge of the lower cover plate, a plurality of blades are arranged between the upper cover plate and the lower cover plate, a ventilation channel is arranged between the two blades, two ends of the ventilation channel are respectively communicated with the air inlet part and the air outlet part, and the wrap angle of the blades is 57.3-45.2 degrees; the impeller is driven by the motor to rotate, gas in the air duct is thrown out of the air outlet portion, negative pressure is generated in the air duct, external gas enters the air duct from the air inlet portion, so that a gas source is continuously blown out of the air outlet portion, the friction area of the blades can be increased due to too large wrap angle of the blades, the blowing efficiency can be influenced, the control capacity of the blades on the gas and the stability of the gas flowing can be reduced due to too small wrap angle of the blades, the blowing efficiency can also be influenced, the ventilation speed of the impeller can be improved due to the improvement of the shape of the blades, the blowing efficiency is improved, and the energy consumption is reduced.
The above description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the present invention is given.
Drawings
Fig. 1 is a schematic perspective view of an impeller structure for a high-efficiency centrifugal blower according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of a lower cover plate and blades of an impeller structure for a high-efficiency centrifugal blower according to an embodiment of the present invention;
fig. 3 is a schematic perspective view of a lower cover plate and blades of an impeller structure for a high-efficiency centrifugal blower according to an embodiment of the present invention;
fig. 4 is a schematic perspective view of a lower cover plate and blades of an impeller structure for a high-efficiency centrifugal blower according to an embodiment of the present invention;
in the figure: 1. an upper cover plate; 2. a lower cover plate; 3. a blade; 101. an air inlet part; 102. an air outlet part; 103. an air duct; 301. a leading edge; 302. a trailing edge; 303. a dividing section.
Detailed Description
To make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention are described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts all belong to the protection scope of the present invention.
Referring to fig. 1 to 4, an embodiment of the present invention provides an impeller structure for a high-efficiency centrifugal blower, which is characterized by comprising:
an upper cover plate 1 provided with an air inlet portion 101;
An embodiment of the utility model provides an impeller structure for high-efficient centrifugal blower, a serial communication port, include: an upper cover plate 1 provided with an air inlet portion 101; the lower cover plate 2 is coaxial with the upper cover plate 1, an air outlet part 102 is arranged between the outer edge of the upper cover plate 1 and the outer edge of the lower cover plate 2, a plurality of blades 3 are arranged between the upper cover plate 1 and the lower cover plate 2, an air duct is arranged between the two blades 3, two ends of the air duct are respectively communicated with the air inlet part 101 and the air outlet part 102, and the wrap angle of the blades 3 is 57.3-45.2 degrees; the impeller is driven by the motor to rotate, gas in the air duct is thrown out from the air outlet portion 102, negative pressure is generated in the air duct, external gas enters the air duct from the air inlet portion 101, so that the gas is continuously blown out from the air outlet portion 102, the friction area of the blade 3 can be increased when the wrap angle of the blade 3 is too large, the air blowing efficiency can be influenced, the control capability of the blade 3 on the gas and the stability of the gas flow can be reduced when the wrap angle of the blade 3 is too small, the air blowing efficiency can also be influenced, the air ventilation speed of the impeller can be improved through the improvement of the shape of the blade 3, the air blowing efficiency is improved, and the energy consumption is reduced.
In a further embodiment of the present embodiment, the blade 3 has a middle part thicker than the leading edge 301 and the trailing edge 302, and the end of the leading edge 301 is provided with a dividing part 303.
In this embodiment, the front edge 301 of the blade 3 is provided with the dividing portion 303, the dividing portion 303 is relatively sharp, so that the air sucked from the air inlet portion can be better divided, the divided air enters the air duct, and meanwhile, the middle portion of the blade 3 is thicker than the front edge 301 and the rear edge 302, so that the shape of the blade 3 is similar to the shape of an airfoil, the air can flow through the air duct at a high speed, the ventilation speed of the impeller is improved, and the flow process of the air in the air duct is more stable, so that the air blowing efficiency is improved, and the energy consumption is reduced.
In a further possible embodiment of the present embodiment, the blade 3 has a wrap angle of 57.3 °.
In this embodiment, the blade 3 cornerite is 57.3, and increasing the blade 3 cornerite can increase the blade 3 to the restraint ability of air current, reduces the possibility of desludging for the air current is in the air duct operation is more stable, reduces to produce low-speed vortex district, thereby improves blast efficiency, and great blade 3 cornerite is more suitable for using under the operating mode of low discharge.
In a further possible embodiment of the present embodiment, the blade 3 has a wrap angle of 45.2 °.
In this embodiment, 3 cornerites of blade are 45.2, reduce 3 cornerites of blade and can reduce the length of ventiduct, reduce 3 cornerites of blade simultaneously and can reduce the frictional resistance of blade 3 and air current, through reducing the length of ventiduct and reducing frictional resistance, can further improve blast efficiency, and less 3 cornerites of blade are more suitable for under the large-traffic operating mode and use.
In a further possible embodiment of the present embodiment, the leading edge 301 of the blade 3 has a thickness of 0.8mm, the leading edge 301 of the blade 3 being provided with a pitch angle of 40.4 °.
In this embodiment, the thickness of the front edge 301 of the blade 3 is 0.8mm, the front edge 301 of the blade 3 is provided with an inclination angle of 40.4 °, and the structure that the front edge 301 of the blade 3 is provided with an inclination angle is beneficial to reducing aerodynamic loss of the centrifugal impeller at the inlet of the centrifugal impeller, which is caused by non-uniform axial speed of the airflow, such as impact loss of the airflow on the front edge 301 of the blade 3 and separation loss at the partition part 303 of the blade 3, thereby being beneficial to improving the blowing efficiency and simultaneously prolonging the service life of the blade 3.
In a further possible embodiment of this embodiment, the trailing edge 302 of the blade 3 is 0.7mm thick, and the trailing edge 302 of the blade 3 is provided with a pitch angle of 49.8 °.
In this embodiment, the thickness of the rear edge 302 of the blade 3 is 0.7mm, the rear edge 302 of the blade 3 is provided with an inclination angle of 49.8 °, the thickness of the rear edge 302 of the blade 3 is smaller than that of the front edge 301, and the thickness of the middle part of the blade 3 is greater than that of the front edge 301 and the rear edge 302, such an arrangement considers the pressure gradient influence of the airflow on the pressure difference existing between the front edge 301 of the blade 3 and the rear edge 302 of the blade 3, the thickness of the blade 3 at the air outlet part 102 is gradually reduced, the energy loss caused by the airflow slip can be effectively reduced, and the blower efficiency is improved.
In a further embodiment of the present embodiment, the number of the blades 3 is 13, and 13 blades 3 are uniformly distributed between the upper cover plate 1 and the lower cover plate 2.
In this embodiment, the number of the blades 3 is 13, and by providing a plurality of blades 3, the blowing efficiency can be improved, and the pressure applied to a single blade 3 can be reduced, so that the service life of the blade 3 can be prolonged.
In a further embodiment of the present embodiment, the upper end of the upper cover plate 1 is 0.5mm higher than the upper end of the lower cover plate 2.
In this embodiment, the upper end portion of the upper cover plate 1 is provided with the air inlet, and the upper end portion of the lower cover plate 2 protrudes upward, so that air sucked by the air inlet can be guided into the ventilation duct, and the blowing efficiency is improved.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. An impeller structure for a high efficiency centrifugal blower comprising:
the upper cover plate is provided with an air inlet part;
lower apron, with the coaxial setting of upper cover plate, the upper cover plate outer fringe with air-out portion has between the lower cover plate outer fringe, be provided with a plurality of blades between upper cover plate and the lower apron, two the ventiduct has between the blade, the both ends of ventiduct respectively with air inlet portion with air-out portion intercommunication, the blade cornerite is 57.3 to 45.2.
2. The impeller structure of claim 1, wherein the blade has a middle portion thicker than a leading edge and a trailing edge, and the leading edge is provided with a partition at an end portion thereof.
3. The impeller structure of claim 1, characterized in that the blade wrap angle is 57.3 °.
4. The impeller structure of claim 1, characterized in that the blade wrap angle is 45.2 °.
5. An impeller structure according to claim 1, characterized in that the leading edge of the blade is 0.8mm thick, the leading edge of the blade being provided with a pitch angle of 40.4 °.
6. The impeller structure according to claim 5, characterized in that the trailing edge of the blade is 0.7mm thick, the trailing edge of the blade being provided with a pitch of 49.8 °.
7. The impeller structure according to claim 1, characterized in that the number of said blades is 13, and 13 of said blades are uniformly distributed between said upper cover plate and said lower cover plate.
8. The impeller structure according to claim 7, characterized in that the upper end portion of the upper cover plate is higher than the upper end portion of the lower cover plate by 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223260418.5U CN218624737U (en) | 2022-12-06 | 2022-12-06 | Impeller structure for high-efficiency centrifugal blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223260418.5U CN218624737U (en) | 2022-12-06 | 2022-12-06 | Impeller structure for high-efficiency centrifugal blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218624737U true CN218624737U (en) | 2023-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223260418.5U Active CN218624737U (en) | 2022-12-06 | 2022-12-06 | Impeller structure for high-efficiency centrifugal blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218624737U (en) |
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2022
- 2022-12-06 CN CN202223260418.5U patent/CN218624737U/en active Active
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