All-metal ultrahigh-pressure fan

Abstract

The utility model provides an all-metal ultrahigh-pressure fan, which relates to the technical field of fans and comprises a shell, a motor is arranged in the shell, the output end of the motor is fixedly connected with a driving shaft, the end face of the driving shaft is fixedly connected with a connecting cover, and the outer surface of the connecting cover is uniformly and fixedly connected with a plurality of blades. In the utility model, the air guide blades at the bottom of the shell and the arc surface at the top are arranged, so that the aim of controlling the gap between the blades and the shell can be fulfilled, the metal blades have the same thermal expansion coefficient as the shell, the deformation is small during high-speed operation, and the gap between the outer circle of each blade and the inner wall of the shell can be reduced and controlled to be within 0.6 mm; air can be sucked and discharged from the fan more smoothly, energy loss is reduced, wind pressure output is increased, air flow resistance can be reduced when airflow passes through the arc face, the efficiency of air entering the fan is improved, and noise and air turbulence can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, in particular to an all-metal ultra-high pressure fan. Background Art

[0002] A fan is a mechanical device widely used in various fields. It relies on input mechanical energy to increase gas pressure and discharge gas.

[0003] In the prior art, when traditional fans are installed and used inside an adapter chassis, they are limited by power and installation space, have low wind pressure, cannot provide good blowing penetration, and cannot dissipate heat for deeper chassis, thus affecting the efficiency of the fan. Utility Model Content

[0004] The utility model mainly provides an all-metal ultra-high pressure fan which operates stably and increases wind pressure.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an all-metal ultra-high pressure fan, comprising a shell, a motor is arranged inside the shell, the output end of the motor is fixedly connected to a drive shaft, the end face of the drive shaft is fixedly connected to a connecting cover, the outer surface of the connecting cover is evenly fixedly connected to a plurality of blades, the inner surface of the shell is evenly fixedly connected to a plurality of air guide blades near the bottom, and an arc surface is arranged on the inner surface of the shell near the top.

[0006] Preferably, the plurality of blades are in a mutually overlapping state, and the blades are overlapped with each other, which can provide a higher wind pressure during operation.

[0007] Preferably, a plurality of weight-reducing grooves are evenly arranged on the top of the connection cover. By setting the weight-reducing grooves at the connection cover, the weight of the fan blade rotor can be partially reduced without affecting the strength.

[0008] Preferably, the air guide blade is arranged in an arc shape, and the air guide blade is matched with the arc surface. Together with the air guide blade at the bottom of the outer shell and the arc surface at the top, the purpose of controlling the gap between the blade and the outer shell can be achieved. The metal blade has the same thermal expansion coefficient as the outer shell, and the deformation is small during high-speed operation. The gap between the outer circle of the blade and the inner wall of the outer shell can be reduced and controlled to within 0.6mm, so that the air can be sucked in and discharged from the fan more smoothly, reducing energy loss and increasing wind pressure output.

[0009] Preferably, a plurality of stepped grooves are equidistantly provided on the outer surface of the drive shaft, and the stepped grooves are matched with the connecting cover. The airflow passing through the arc surface can reduce the resistance of the air flow, improve the efficiency of the air entering the fan, and help reduce noise and air turbulence.

[0010] Preferably, ribs are fixedly connected to the corners of the outer surface of the shell. The use of the ribs on the outer side of the shell can reduce the obstruction of airflow, make the ventilation area of ​​the fan casing part larger, and provide sufficient supporting strength.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are:

[0012] 1. In the utility model, with the setting of the wind guide blades at the bottom of the shell and the arc surface at the top, the purpose of controlling the gap between the blade and the shell can be achieved. The metal blade has the same thermal expansion coefficient as the shell, and the deformation is small during high-speed operation. The gap between the outer circle of the blade and the inner wall of the shell can be reduced and controlled to within 0.6mm, so that air can be sucked in and discharged from the fan more smoothly, reducing energy loss and increasing wind pressure output. The airflow passing through the arc surface can reduce the resistance of air flow, improve the efficiency of air entering the fan, and help reduce noise and air turbulence.

[0013] 2. In the utility model, the use of ribs on the outer side of the outer shell can reduce the obstruction of airflow, so that the ventilation area of ​​the fan casing is larger and sufficient supporting strength can be provided. By setting the weight-reducing groove at the connection cover position, the weight of the fan blade rotor can be reduced without affecting the strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional diagram of an all-metal ultra-high pressure blower is proposed for the utility model;

[0015] Figure 2 A top view of an all-metal ultra-high pressure blower is proposed for the utility model;

[0016] Figure 3 for Figure 2 A magnified view of the structure at A;

[0017] Figure 4 A schematic diagram of the connection cover structure of an all-metal ultra-high pressure fan is proposed for the utility model;

[0018] Figure 5 The utility model provides a bottom view of an all-metal ultra-high pressure blower.

[0019] Legend: 1. Casing; 2. Motor; 3. Drive shaft; 4. Step groove; 5. Connecting cover; 6. Blade; 7. Weight reduction groove; 8. Arc surface; 9. Rib; 10. Air guide vane. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. 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.

[0021] 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 than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0022] See also Figure 1-Figure 5 The utility model provides a technical solution: an all-metal ultra-high pressure fan, including a shell 1, a motor 2 is arranged inside the shell 1, a driving shaft 3 is fixedly connected to the output end of the motor 2, a connecting cover 5 is fixedly connected to the end face of the driving shaft 3, a plurality of blades 6 are evenly fixedly connected to the outer surface of the connecting cover 5, a plurality of air guide blades 10 are evenly fixedly connected to the inner surface of the shell 1 near the bottom, and an arc surface 8 is arranged near the top of the inner surface of the shell 1.

[0023] like Figure 1-Figure 4 As shown, a plurality of blades 6 are superimposed on each other, and 5 blades are superimposed on each other, which can provide a higher wind pressure during operation.

[0024] like Figure 1-Figure 4 As shown, a plurality of weight-reducing grooves 7 are evenly arranged on the top of the connecting cover 5. By setting the weight-reducing grooves 7 at the position of the connecting cover 5, the weight of the fan blade rotor can be partially reduced without affecting the strength.

[0025] like Figure 1-Figure 4 As shown, the air guide blade 10 is arranged in an arc shape, and the air guide blade 10 and the arc surface 8 are arranged in a matching manner. With the arrangement of the air guide blade 10 at the bottom of the outer shell 1 and the arc surface 8 at the top, the purpose of controlling the gap between the blade 6 and the outer shell 1 can be achieved. The metal blade 6 has the same thermal expansion coefficient as the outer shell 1, and the deformation is small during high-speed operation. The gap between the outer circle of the blade 6 and the inner wall of the outer shell 1 can be reduced and controlled to within 0.6mm, so that the air can be sucked in and discharged from the fan more smoothly, reducing energy loss and increasing wind pressure output.

[0026] like Figure 1-Figure 4 As shown, a plurality of stepped grooves 4 are equidistantly provided on the outer surface of the driving shaft 3, and the stepped grooves 4 are matched with the connecting cover 5. The airflow passing through the arc surface 8 can reduce the resistance of the air flow, improve the efficiency of the air entering the fan, and help reduce noise and air turbulence.

[0027] like Figure 1-Figure 4As shown, ribs 9 are fixedly connected to the corners of the outer surface of the shell 1. The use of the ribs 9 on the outer side of the shell 1 can reduce the obstruction of airflow, make the ventilation area of ​​the fan casing part larger, and provide sufficient supporting strength.

[0028] The use method and working principle of this device: When the all-metal high-pressure fan is prepared for use, the drive shaft 3 is driven to rotate by the operation of the motor 2. When the drive shaft 3 is in operation, it can drive the blades 6 to rotate through the connection of the connecting cover 5. The motor 2 adopts a 6-pole stator and a three-phase drive. L1, L2, and L3 are energized in turn to attract the magnetic steel to rotate. It can increase the efficiency by 15% compared with the traditional single-phase drive, thereby increasing the speed under the same power consumption. The fan blade is designed with 5 blades, and the 5 blades are superimposed on each other, which can provide a higher wind pressure during operation. At the same time, the setting of the wind guide blade 10 at the bottom of the shell 1 and the arc surface 8 at the top can control the gap between the blade 6 and the shell 1. The thermal expansion coefficient of the metal blade 6 is the same as that of the shell 1. At the same time, the deformation is small during high-speed operation, and the gap between the outer circle of the blade 6 and the inner wall of the shell 1 can be reduced and controlled to within 0.6mm, so that the air can be inhaled and discharged from the fan more smoothly, reducing energy loss and increasing wind pressure output. The airflow passing through the arc surface 8 can reduce the resistance of air flow, improve the efficiency of air entering the fan, and help reduce noise and air turbulence. At the same time, the use of the rib plate 9 on the outside of the shell 1 can reduce the obstruction of airflow, so that the ventilation area of ​​the fan casing part is larger, and sufficient supporting strength can be provided. By setting the weight-reducing groove 7 at the position of the connecting cover 5, the weight of the fan rotor can be reduced without affecting the strength. The setting of the stepped groove 4 can ensure concentricity and the connection strength is relatively high.

[0029] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An all-metal ultra-high pressure blower, comprising a housing (1), characterized in that: A motor (2) is arranged inside the housing (1); a drive shaft (3) is fixedly connected to the output end of the motor (2); a connection cover (5) is fixedly connected to the end face of the drive shaft (3); a plurality of blades (6) are evenly fixedly connected to the outer surface of the connection cover (5); a plurality of air guide blades (10) are evenly fixedly connected to the inner surface of the housing (1) near the bottom; and a circular arc surface (8) is arranged on the inner surface of the housing (1) near the top.

2. The all-metal ultra-high pressure blower according to claim 1, characterized in that: The plurality of blades (6) are in a mutually superimposed state.

3. The all-metal ultra-high pressure blower according to claim 1, characterized in that: A plurality of weight-reducing grooves (7) are evenly arranged on the top of the connection cover (5).

4. The all-metal ultra-high pressure blower according to claim 1, characterized in that: The air guide blade (10) is arranged in an arc shape, and the air guide blade (10) and the arc surface (8) are arranged in a matching manner.

5. The all-metal ultra-high pressure blower according to claim 1, characterized in that: The outer surface of the driving shaft (3) is provided with a plurality of stepped grooves (4) at equal intervals, and the stepped grooves (4) are matched with the connecting cover (5).

6. The all-metal ultra-high pressure blower according to claim 1, characterized in that: Ribs (9) are fixedly connected to the corners of the outer surface of the shell (1).

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