High-power high-vacuum-degree fan

Abstract

A high-power high-vacuum-degree draught fan comprises a front end cover, the front end cover comprises an inner barrel, an outer barrel and a first guide vane, the first guide vane is arranged between the inner barrel and the outer barrel, and a supporting frame is arranged on the air inlet end face of the inner barrel; the fixed impeller is arranged on the air inlet end face of the front end cover and comprises a supporting ring and a second guide vane, the supporting ring is matched with the supporting frame, and the first guide vane and the second guide vane are combined to form a complete guide vane in overall smooth transition; the bottom of the wind scooper is clamped with the side wall of the air inlet end face of the front end cover; the movable impeller is arranged in the wind scooper; the driving assembly is arranged in the front end cover, and the power output end of the driving assembly penetrates through the front end cover and is connected with the movable impeller to transmit power; and a rear cover. The motor has the beneficial effects that the second guide vane on the fixed impeller and the first guide vane on the front end cover are combined to form the integral guide vane in smooth transition, the aerodynamic performance of the motor can be remarkably improved, the wind noise and eddy current loss are reduced as much as possible, and the vacuum degree is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fans, and in particular relates to a high-power and high-vacuum fan. Background Art

[0002] As a commonly used wind power component on the market, fans are used in many household appliances. However, the aerodynamic performance of traditional fans still needs to be improved and can no longer meet the growing demand for use. It is necessary to propose a high-power and high-vacuum fan. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a high-power high-vacuum blower.

[0004] The utility model adopts the following technical solutions:

[0005] A high-power high-vacuum blower, comprising:

[0006] The front end cover comprises: an inner cylinder, an outer cylinder and a first guide vane, the inner cylinder is arranged inside the outer cylinder, the first guide vane is arranged between the inner cylinder and the outer cylinder, and a support frame is provided on the air inlet end surface of the inner cylinder;

[0007] The stator impeller is arranged on the air inlet end face of the front end cover, and comprises: a support ring and a second guide vane arranged on the outer edge of the support ring, the support ring cooperates with the support frame, and the first guide vane and the second guide vane are combined to form a complete guide vane with an overall smooth transition;

[0008] An air guide cover, the bottom of which is engaged with the side wall of the air inlet end face of the front end cover;

[0009] A moving impeller, wherein the moving impeller is arranged in the air guide cover;

[0010] A drive assembly is disposed in the front end cover, and a power output end of the drive assembly passes through the front end cover and is connected to the impeller to transmit power;

[0011] A rear cover encloses the drive assembly within the front cover.

[0012] Optionally, a positioning column is provided on the support frame, and a positioning hole cooperating with the positioning column is provided on the support ring.

[0013] Optionally, the support frame has a hollow structure.

[0014] Optionally, the support ring and the support frame are provided with screw holes for assembly and fixation.

[0015] Optionally, the drive assembly includes: a stator, a rotor, a stator seat and a drive control board, the stator seat is clamped with the inner wall of the front end cover, the stator is arranged on the stator seat, the rotor is passed through the stator, the part of the rotor located in the stator is provided with a magnet, the power output end of the rotor passes through the front end cover and is connected to the impeller, the drive control board is arranged on the stator seat and is electrically connected to the coil in the stator, the rear cover is arranged on the drive control board and encloses the drive assembly in the front end cover.

[0016] Optionally, the impeller includes: a pad, an arc-shaped top plate and a plurality of blades arranged between the pad and the arc-shaped top plate, the center of the pad is connected to the power output end of the drive assembly, the blades are arranged in a circular array at the edge of the pad with the center of the pad as the center of the circle, and an air inlet is opened in the middle of the arc-shaped top plate.

[0017] The beneficial effect of the present invention is that the second guide vane on the stator wheel and the first guide vane on the front end cover form a complete guide vane with an overall smooth transition, which can significantly increase the aerodynamic performance of the motor, minimize the loss of wind noise and eddy current, and improve the vacuum degree. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the utility model in a split state;

[0019] Figure 2 This is a schematic diagram of the combination of the stator impeller and the front end cover of the utility model;

[0020] Figure 3 This is a schematic cross-sectional view of the stator impeller and front end cover in the present invention in combination;

[0021] Figure 4 This is a schematic diagram of the front end cover structure of the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the stator impeller of the utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the impeller of the utility model. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Example

[0025] like Figures 1-5 As shown, a high-power high-vacuum blower includes:

[0026] The front end cover 1 comprises an inner cylinder 11, an outer cylinder 12 and a first guide vane 13. The inner cylinder 11 is arranged inside the outer cylinder 12. The first guide vane 13 is arranged between the inner cylinder 11 and the outer cylinder 12. A support frame 14 is provided on the air inlet end surface of the inner cylinder 11.

[0027] The stator impeller 2 is arranged on the air inlet end face of the front cover 1. The stator impeller 2 includes: a support ring 21 and a second guide vane 22 arranged on the outer edge of the support ring 21. The support ring 21 cooperates with the support frame 14. The first guide vane 13 and the second guide vane 22 are combined to form a complete guide vane with an overall smooth transition;

[0028] An air guide cover 3, the bottom of which is engaged with the side wall of the air inlet end face of the front cover 1;

[0029] The impeller 4 is disposed in the air guide cover 3;

[0030] A drive assembly 5 is provided in the front end cover 1, and a power output end of the drive assembly 5 passes through the front end cover 1 and is connected to the impeller 4 to transmit power;

[0031] The rear cover 6 encloses the drive assembly 5 in the front cover 1 .

[0032] When the fan is working, the impeller 4 is driven by the driving assembly 5 to rotate at high speed to suck the airflow from the guide cover. The second guide vane 22 on the stator impeller 2 and the first guide vane 13 on the front cover 1 are combined to form a complete guide vane with a smooth transition as a whole, so as to increase the aerodynamic performance of the motor, minimize the loss of wind noise and eddy current, and improve the vacuum degree.

[0033] like Figure 4 、 5 As shown, the support frame 14 is provided with a positioning post 141, and the support ring 21 is provided with a positioning hole 211 that cooperates with the positioning post 141. This facilitates the precise positioning of the stator impeller 2 and the front cover 1, ensuring a smooth fit between the two, allowing the fluid to flow through the guide vanes without additional resistance, thereby reducing the generation of eddies and turbulence.

[0034] like Figure 4 As shown, the support frame 14 has a hollow structure 142, which effectively improves the heat dissipation efficiency of the fan and improves the efficiency of the fan during operation.

[0035] like Figure 4 、 5 As shown, the support ring 21 and the support frame 14 are provided with screw holes 7 for assembly and fixation, and the stator impeller 2 and the front end cover 1 are connected and fixed by screwing during assembly.

[0036] like Figure 1As shown, the drive assembly 5 includes: a stator 51, a rotor 52, a stator seat 53 and a drive control board 54. The stator seat 53 is snap-fitted to the inner wall of the front end cover 1. The stator 51 is arranged on the stator seat 53. The rotor 52 is passed through the stator 51. The part of the rotor 52 located in the stator 51 is provided with a magnet. The power output end of the rotor 52 passes through the front end cover 1 and is connected to the impeller 4. The drive control board 54 is arranged on the stator seat 53 and is electrically connected to the coil in the stator 51, providing the required working current for the coil in the stator 51 to generate a magnetic field, driving the rotor 52 with the magnet to rotate. The rear cover 6 is covered on the drive control board 54 and encloses the drive assembly 5 in the front end cover 1 for protection.

[0037] like Figure 6 As shown, the impeller 4 includes: a pad 41, a curved top plate 42 and a plurality of blades 43 arranged between the pad 41 and the curved top plate 42. The center of the pad 41 is connected to the power output end of the drive assembly 5. The blades 43 are arranged in a circular array at the edge of the pad 41 with the center of the pad 41 as the center of the circle. An air inlet 44 is opened in the middle of the curved top plate 42.

[0038] The beneficial effect of the present invention is that the second guide vane on the stator wheel and the first guide vane on the front end cover form a complete guide vane with an overall smooth transition, which can significantly increase the aerodynamic performance of the motor, minimize the loss of wind noise and eddy current, and improve the vacuum degree.

Claims

1. A high-power high-vacuum fan, characterized in that, Comprising: A front end cover (1), the front end cover (1) comprising: an inner cylinder (11), an outer cylinder (12) and a first guide vane (13), the inner cylinder (11) being disposed inside the outer cylinder (12), the first guide vane (13) being disposed between the inner cylinder (11) and the outer cylinder (12), and a support frame (14) being provided on the air inlet end face of the inner cylinder (11); A stationary impeller (2), the stationary impeller (2) being disposed on the air inlet end face of the front end cover (1), the stationary impeller (2) comprising: a support ring (21) and a second guide vane (22) provided on the outer edge of the support ring (21), the support ring (21) cooperating with the support frame (14), and the first guide vane (13) and the second guide vane (22) being combined to form a complete guide vane with an overall smooth transition; An air guide cover (3), the bottom of the air guide cover (3) being snap-connected to the side wall of the air inlet end face of the front end cover (1); A moving impeller (4), the moving impeller (4) being disposed inside the air guide cover (3); A drive assembly (5), the drive assembly (5) being disposed inside the front end cover (1), and the power output end of the drive assembly (5) passing through the front end cover (1) to be connected to the moving impeller (4) for power transmission; A rear cover (6), the rear cover (6) enclosing the drive assembly (5) inside the front end cover (1).

2. The high-power high-vacuum fan according to claim 1, characterized in that A positioning post (141) is provided on the support frame (14), and a positioning hole (211) cooperating with the positioning post (141) is provided on the support ring (21).

3. The high-power high-vacuum fan according to claim 1, wherein The support frame (14) has a hollow structure (142).

4. The high-power high-vacuum fan according to claim 1, wherein The support ring (21) and the support frame (14) are provided with screw holes (7) for assembly and fixation.

5. The high-power and high-vacuum fan according to claim 1, wherein The drive assembly (5) comprises: a stator (51), a rotor (52), a stator seat (53) and a drive control board (54), the stator seat (53) being snap-connected to the inner wall of the front end cover (1), the stator (51) being disposed on the stator seat (53), the rotor (52) passing through the stator (51), a magnet being provided on the part of the rotor (52) inside the stator (51), the power output end of the rotor (52) passing through the front end cover (1) to be connected to the moving impeller (4), the drive control board (54) being disposed on the stator seat (53) and electrically connected to the coil inside the stator (51), and the rear cover (6) covering the drive control board (54) and enclosing the drive assembly (5) inside the front end cover (1).

6. The high-power high-vacuum fan according to claim 1, wherein The moving impeller (4) comprises: a backing plate (41), an arc-shaped top plate (42) and a plurality of blades (43) disposed between the backing plate (41) and the arc-shaped top plate (42), the center of the backing plate (41) being connected to the power output end of the drive assembly (5), the blades (43) being annularly arranged at the edge of the backing plate (41) with the center of the backing plate (41) as the center of the circle, and an air inlet (44) being provided in the middle of the arc-shaped top plate (42).

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