Integrated fan structure

Abstract

The invention discloses an integrated fan structure, and belongs to the technical field of fans. An integrated fan structure comprises a box body, a fan body and a fan cover, a housing; the mixed flow blade is fixedly connected with the transmission block; a conical surface is arranged on the outer side of the transmission block; the flow mixing blades are mounted on the conical surface; the included angle between the conical surface and the axis of the conical surface is 40-50 degrees; the shell is provided with a centrifugal air outlet pipe; the centrifugal air outlet pipe is located in the diameter direction of the fixing sleeve. The axial air outlet pipe and the air inlet pipe are both located in the axis direction of the fixing sleeve and arranged on the two sides of the shell correspondingly. The guide plate is provided with a first connecting part connected with the fixing sleeve; the mixed flow blade is provided with a second connecting part connected with the fixing sleeve; and the minimum axial distance between the first connecting part and the second connecting part is 1 / 2 of the width of the inner wall of the centrifugal air outlet pipe. The integrated fan structure has the beneficial effect that axial and radial efficient air outlet is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of fans, and in particular to an integrated fan structure. Background Art

[0002] Fans are widely used in ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and draft of boilers and industrial furnaces; cooling and ventilation of air conditioning equipment and household appliances; drying and selection of grains; inflation and propulsion of wind tunnel wind sources and hovercraft, etc. The working principle of the fan is basically the same as that of the turbine compressor, but due to the low gas flow rate and small pressure change, it is generally not necessary to consider the change of gas specific volume, that is, the gas is treated as an incompressible fluid.

[0003] The existing axial flow fans and centrifugal fans have a single air outlet form and cannot adapt to a variety of operating conditions. In addition, due to the small space on the ship, two fans cannot be accommodated and different air outlet forms cannot be met at the same time. In addition, traditional duct fans use reversing valves to adjust the air duct, which causes large aerodynamic losses in the pipeline and cannot achieve high flow efficiency of the fluid in the overall pipeline.

[0004] Therefore, an integrated fan structure with efficient axial and radial air outlet is provided. Summary of the invention

[0005] The content of this application is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this application is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0006] In order to solve the technical problems mentioned in the above background technology part, some embodiments of the present application provide an integrated fan structure, including: a box body; a shell, arranged in the box body and fixedly connected to the box body; an air inlet duct, arranged on one side of the shell body and fixedly connected to the shell body; an axial air outlet duct, arranged on the other side of the shell body and fixedly connected to the box body; a first guide sleeve, whose two ends are respectively fixedly connected to the box body and the shell body; a guide plate, arranged in the first guide sleeve and fixedly connected to the first guide sleeve; a fixed sleeve, fixedly connected to the guide plate; a motor, arranged in the fixed sleeve and fixedly connected to the fixed sleeve; a transmission block, connected to the drive shaft of the motor Fixed connection; mixed flow blade, fixedly connected with the transmission block; wherein, a conical surface is provided on the outer side of the transmission block; the mixed flow blade is mounted on the conical surface; the angle between the conical surface and its axis is 40 degrees-50 degrees; the shell is provided with a centrifugal air outlet duct; the axial air outlet duct and the air inlet duct are both located in the axial direction of the fixed sleeve, and are respectively arranged on both sides of the shell; the guide plate has a first connection portion connected to the fixed sleeve; the mixed flow blade has a second connection portion connected to the fixed sleeve; the minimum axial spacing between the first connection portion and the second connection portion is 1 / 2 of the width of the inner wall of the centrifugal air outlet duct.

[0007] By setting the conical surface to 40-50 degrees, that is, the installation angle of the mixed flow blade, and the blade profiles of the mixed flow blade and the guide plate, and then controlling the spacing between the mixed flow blade and the guide plate, the minimum axial spacing between the first connection part and the second connection part is 1 / 2 of the inner wall width of the centrifugal air outlet duct, thereby ensuring that the air outlet efficiency of the axial air outlet duct and the centrifugal air outlet duct are both 80%, ensuring that the axial air outlet and the radial air outlet are both in a high-efficiency state, thereby having axial and radial high-efficiency air outlet.

[0008] Furthermore, the mixed flow blades are arranged in multiple groups, each group of mixed flow blades includes a first blade and a second blade, and the minimum distance between the first blade and the axis centerline of the fixed sleeve is greater than the minimum distance between the second blade and the axis centerline of the fixed sleeve.

[0009] Furthermore, the guide plate extends along the radial direction and the axial direction of the fixing sleeve and in a direction close to the axial air outlet pipe.

[0010] Furthermore, a plurality of guide plates are provided; the guide plates are equidistantly distributed along a fixed circumferential direction.

[0011] Furthermore, a plurality of mixed flow blades are provided; and the mixed flow blades are equidistantly distributed along the circumferential direction of the conical surface.

[0012] Furthermore, the integrated fan structure also includes: a second guide sleeve, which is arranged on the outside of the mixed flow blade and fixedly connected to the mixed flow blade.

[0013] Furthermore, the first flow guide sleeve and the second flow guide sleeve are arranged opposite to each other.

[0014] Furthermore, the second guide sleeve, the mixed flow blade and the transmission block are integrally formed.

[0015] Furthermore, the first guide sleeve, the guide plate and the fixing sleeve are integrally formed.

[0016] The beneficial effect of the present application is that it provides an integrated fan structure with efficient axial and radial air outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The illustrative embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application.

[0018] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the components and elements are not necessarily drawn to scale.

[0019] In the attached picture:

[0020] Figure 1 is an overall schematic diagram according to an embodiment of the present application;

[0021] Figure 2 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the housing and the first guide sleeve;

[0022] Figure 3 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the air inlet duct;

[0023] Figure 4 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the motor and the fixing sleeve;

[0024] Figure 5 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the first connecting part and the second connecting part;

[0025] Figure 6 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the transmission block and the conical surface;

[0026] Figure 7 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the guide plate.

[0027] Reference numerals:

[0028] 100, integrated fan structure; 101, box body; 102, shell; 102a, air inlet pipe; 102b, axial air outlet pipe;

[0029] 102c, centrifugal air outlet duct; 103, first guide sleeve; 104, guide plate; 104a, first connecting portion; 105, fixing sleeve; 106, motor; 107, transmission block; 107a, conical surface; 108, mixed flow blade; 108a, second connecting portion; 108b, first blade; 108c, second blade; 109, second guide sleeve. DETAILED DESCRIPTION

[0030] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0031] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0032] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0033] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0034] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0035] Reference Figure 1-7 An integrated fan structure 100 includes: a box body 101, a shell 102, a first guide sleeve 103, a guide plate 104, a fixed sleeve 105, a motor 106, a transmission block 107, a mixed flow blade 108 and a second guide sleeve 109. An air inlet pipe 102a, an axial air outlet pipe 102b and a centrifugal air outlet pipe 102c are provided on both sides of the shell 102. A plurality of guide plates 104 are provided, and the guide plates 104 are equidistantly distributed along a fixed circumferential direction. A plurality of mixed flow blades 108 are provided, and the mixed flow blades 108 are equidistantly distributed along the circumferential direction of the conical surface 107a. The first guide sleeve 103 and the second guide sleeve 109 are arranged opposite to each other. The second guide sleeve 109, the mixed flow blade 108 and the transmission block 107 are integrally formed. The first guide sleeve 103, the guide plate 104 and the fixed sleeve 105 are integrally formed.

[0036] The air inlet pipe 102a is arranged at one side of the housing 102 and is fixedly connected to the housing 102. The centrifugal air outlet pipe 102c is fixedly connected to the housing. The axial air outlet pipe 102b is arranged at the other side of the housing 102 and is fixedly connected to the box body 101. The centrifugal air outlet pipe 102c is located in the diameter direction of the fixed sleeve 105. The axial air outlet pipe 102b and the air inlet pipe 102a are both located in the axial direction of the fixed sleeve 105 and are respectively arranged on both sides of the housing 102.

[0037] The housing 102 is disposed in the housing 101 and is fixedly connected to the housing 101. The two ends of the first guide sleeve 103 are fixedly connected to the housing 101 and the housing 102 respectively. The guide plate 104 is disposed in the first guide sleeve 103 and is fixedly connected to the first guide sleeve 103. The fixed sleeve 105 is fixedly connected to the guide plate 104. The motor 106 is disposed in the fixed sleeve 105 and is fixedly connected to the fixed sleeve 105. The transmission block 107 is fixedly connected to the drive shaft of the motor 106. The mixed flow blade 108 is fixedly connected to the transmission block 107. The second guide sleeve 109 is disposed on the outside of the mixed flow blade 108 and is fixedly connected to the mixed flow blade 108.

[0038] The transmission block 107 has a conical surface 107a on the outside, and the mixed flow blade 108 is installed on the conical surface 107a. The angle between the conical surface 107a and its axis is 40-50 degrees. The guide plate 104 has a first connection portion 104a connected to the fixed sleeve 105. The mixed flow blade 108 has a second connection portion 108a connected to the fixed sleeve 105. The minimum axial distance between the first connection portion 104a and the second connection portion 105a is 1 / 2 of the inner wall width of the centrifugal air outlet pipe 102c. (i.e. Figure 5 The mixed flow blades 108 are provided in multiple groups, each group of mixed flow blades includes a first blade 108b and a second blade 108c, and the minimum distance between the first blade 108b and the axis of the fixed sleeve 105 is greater than the minimum distance between the second blade 108c and the axis of the fixed sleeve 105. The guide plate 104 extends along the radial and axial directions of the fixed sleeve 105 and close to the direction of the axial air outlet pipe 102b. By adjusting the angle of the mixed flow blade 108 (i.e., the angle between the conical surface 107a and its axis is 40 degrees to 50 degrees), the minimum axis spacing between the first connection portion 104a and the second connection portion 108a is made 1 / 2 of the inner wall width of the centrifugal air outlet pipe 102c, thereby ensuring that the air outlet efficiency of the axial air outlet pipe 102b and the centrifugal air outlet pipe 102c is both 80%, ensuring that the axial air outlet and the radial air outlet are both in a high efficiency state, when the axial air outlet is required, the centrifugal air outlet pipe 102c is blocked with a cover plate, and the axial air outlet pipe 102b is opened. When the radial air outlet is required, the axial air outlet pipe 102b is blocked with a cover plate, and the centrifugal air outlet pipe 102c is opened, thereby simultaneously meeting the high efficiency of the axial and radial air outlets.

[0039] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned inventive concept. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the embodiments of the present disclosure (but not limited to) and the technical solutions formed.

Claims

1. An integrated fan structure, comprising: Box; The housing is disposed in the box body and is fixedly connected to the box body; Features: The integrated fan structure also includes: An air inlet pipe is arranged on one side of the shell and is fixedly connected to the shell; The axial air outlet pipe is arranged on the other side of the shell and is fixedly connected to the box body; The first guide sleeve has two ends fixedly connected to the box body and the shell body respectively; A guide plate is disposed in the first guide sleeve and is fixedly connected to the first guide sleeve; A fixed sleeve, fixedly connected to the guide plate; The motor is arranged in the fixing sleeve and fixedly connected to the fixing sleeve; A transmission block, fixedly connected to the drive shaft of the motor; The mixed flow blade is fixedly connected to the transmission block; Among them, a conical surface is provided on the outer side of the transmission block; the mixed flow blade is installed on the conical surface; the angle between the conical surface and its axis is 40 degrees-50 degrees; the shell is provided with a centrifugal air outlet duct; the axial air outlet duct and the air inlet duct are both located in the axial direction of the fixed sleeve, and are respectively arranged on both sides of the shell; the guide plate has a first connecting part connected to the fixed sleeve; the mixed flow blade has a second connecting part connected to the fixed sleeve; the minimum axial spacing between the first connecting part and the second connecting part is 1 / 2 of the inner wall width of the centrifugal air outlet duct.

2. The integrated fan structure according to claim 1, characterized in that: The mixed flow blades are arranged in multiple groups, each group of mixed flow blades includes a first blade and a second blade, and the minimum distance between the first blade and the axis centerline of the fixed sleeve is greater than the minimum distance between the second blade and the axis centerline of the fixed sleeve.

3. The integrated fan structure according to claim 1, characterized in that: The guide plate extends along the radial direction and the axial direction of the fixing sleeve and in a direction close to the axial air outlet pipe.

4. The integrated fan structure according to claim 3, characterized in that: The guide plates are provided in plurality; The guide plates are distributed at equal intervals along a fixed circumferential direction.

5. The integrated fan structure according to claim 2, characterized in that: The mixed flow blades are provided in plurality; The mixed flow blades are distributed equidistantly along the circumferential direction of the conical surface.

6. The integrated fan structure according to claim 1, characterized in that: The integrated fan structure also includes: The second guide sleeve is arranged on the outer side of the mixed flow blade and is fixedly connected to the mixed flow blade.

7. The integrated fan structure according to claim 6, characterized in that: The first flow guide sleeve and the second flow guide sleeve are arranged opposite to each other.

8. The integrated fan structure according to claim 6, characterized in that: The second guide sleeve, the mixed flow blade and the transmission block are integrally formed.

9. The integrated fan structure according to claim 1, characterized in that: The first guide sleeve, the guide plate and the fixing sleeve are integrally formed.

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