High-temperature-resistant volute-free centrifugal fan

Abstract

The utility model discloses a high-temperature-resistant volute-free centrifugal fan, which comprises an impeller, a plurality of blades, a plurality of blades and a plurality of centrifugal fans, the impeller comprises blades and a middle disc, the impeller is fixed on the middle disc, and the middle disc is provided with lugs; the impeller and the cooling device are arranged side by side in the first direction, the cooling device is arranged on the side, close to the middle disc, of the impeller, the cooling device comprises a shell and a heat insulation material, and the heat insulation material is arranged in the shell; the convex pieces on the middle disc are used for heat dissipation, so that the overall high-temperature resistance of the centrifugal fan is improved; the cooling device is used for cooling the impeller, so that the centrifugal fan is cooled, the high-temperature resistance of the centrifugal fan is further improved, and the applicability of the centrifugal fan is improved; and the heat dissipation impeller is used for dissipating heat of the internal space of the motor and the centrifugal fan, so that the heat resistance of the centrifugal fan is further improved.

Description

Technical Field

[0001] This utility model relates to the field of electric centrifugal fan technology, and in particular to a high-temperature resistant volute-free centrifugal fan. Background Technology

[0002] Centrifugal fans are machines that rely on input mechanical energy to increase gas pressure and discharge gas; they are a type of driven fluid machinery. Centrifugal fans are widely used in factories, mines, tunnels, cooling towers, vehicles, ships, and buildings for ventilation, dust removal, and cooling. However, current centrifugal fans do not have the ability to cool themselves. Therefore, if a centrifugal fan is used continuously for too long, it will overheat and become unable to continue operating. Utility Model Content

[0003] To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide a high-temperature resistant, volute-less centrifugal fan. By utilizing the fins on the central plate for heat dissipation, the overall high-temperature resistance of the centrifugal fan is improved; by using a cooling device to cool the impeller, the centrifugal fan is cooled, further improving its high-temperature resistance and thus its applicability; and by using a cooling impeller to dissipate heat from the motor and the internal space of the centrifugal fan, the heat resistance of the centrifugal fan is further improved.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a high-temperature resistant, volute-less centrifugal fan, comprising:

[0005] An impeller, comprising blades and a central disk, wherein the blades are fixed on the central disk and the central disk is provided with protrusions;

[0006] A cooling device, wherein the impeller and the cooling device are arranged side by side along a first direction, the fins face the cooling device, the cooling device is disposed on the side of the impeller near the central plate, the cooling device includes a housing and a heat insulation material, the heat insulation material being disposed inside the housing.

[0007] In this technical solution, the impeller is used to generate wind power by rotating. The impeller dissipates heat by using the fins on the central plate, thereby improving the overall high-temperature resistance of the centrifugal fan. By using a cooling device to cool the impeller, the centrifugal fan is cooled down, further improving the high-temperature resistance of the centrifugal fan and thus enhancing its applicability.

[0008] In some embodiments, the high-temperature resistant volute-less centrifugal fan further includes a motor disposed on the side of the cooling device away from the impeller. The motor includes a motor shaft extending along a first direction. The cooling device is provided with a first through hole, through which the motor shaft passes and connects to the impeller.

[0009] In this technical solution, the motor is used to drive the impeller to rotate, and the motor shaft passes through the first through hole to connect to the impeller, which is beneficial to use a cooling device to cool the motor shaft.

[0010] In some embodiments, the high-temperature resistant volute-less centrifugal fan further includes a heat dissipation impeller, which is disposed on the motor shaft and between the cooling device and the motor.

[0011] In this technical solution, the heat dissipation impeller is used to dissipate heat from the internal space of the motor and the centrifugal fan, thereby further improving the heat resistance of the centrifugal fan.

[0012] In some embodiments, the heat dissipation impeller includes a heat dissipation disk and heat dissipation blades, the heat dissipation blades being fixed to the heat dissipation disk, and the heat dissipation disk being fixed to the motor shaft.

[0013] In this technical solution, the heat dissipation impeller is fixed to the motor shaft by a heat dissipation plate, thereby driving the heat dissipation impeller to rotate by the motor shaft.

[0014] In some embodiments, the heat dissipation plate is provided with a second through hole, and the heat dissipation plate is fixed to the motor shaft through the second through hole.

[0015] In this technical solution, the heat dissipation plate and the motor shaft are connected by a second through hole.

[0016] In some embodiments, the high-temperature resistant volute-less centrifugal fan further includes a connector, which is flared in shape, with the smaller opening end of the connector connected to the motor and the larger opening end connected to the cooling device.

[0017] In this technical solution, the connector is used to connect the cooling device and the motor, thereby making the centrifugal fan a whole.

[0018] In some embodiments, the high-temperature resistant volute-less centrifugal fan further includes bearings, the bearings comprising a first bearing and a second bearing, the cooling device being connected to the motor shaft via the first bearing, and the connecting member being connected to the motor shaft via the second bearing.

[0019] In this technical solution, the bearing is used to assist the rotation of the motor shaft.

[0020] In some embodiments, the middle plate is provided with a shaft disk, and the end of the motor shaft away from the motor is fixed inside the shaft disk.

[0021] In this technical solution, the shaft disk is used to fix the top end of the motor shaft to the middle disk, thereby using the motor shaft to drive the impeller to rotate.

[0022] In some embodiments, the impeller further includes a front disc, which is trumpet-shaped, with the larger opening end of the front disc connected to the blades.

[0023] In this technical solution, the front disc helps guide the direction of the fluid blown out by the impeller, thereby increasing the wind power.

[0024] In some embodiments, the cooling device further includes a cover plate, and the housing has a filling port, the cover plate covering the filling port.

[0025] In this technical solution, the cover plate is easy to disassemble and install, which facilitates the replacement of insulation materials.

[0026] The beneficial effects of this utility model are that by utilizing the fins on the central plate for heat dissipation, the overall high-temperature resistance of the centrifugal fan is improved; by using a cooling device to cool the impeller, the centrifugal fan is cooled, further improving the high-temperature resistance of the centrifugal fan and thus enhancing its applicability; and by using a heat dissipation impeller to dissipate heat from the motor and the internal space of the centrifugal fan, the heat resistance of the centrifugal fan is further improved. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of a high-temperature resistant centrifugal fan without a volute according to an embodiment of the present invention.

[0028] Figure 2 This is a cross-sectional schematic diagram of a high-temperature resistant centrifugal fan without a volute according to an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of a high-temperature resistant centrifugal fan impeller without a volute according to an embodiment of the present invention;

[0030] Figure 4 This is a schematic diagram of a high-temperature resistant, volute-less centrifugal fan cooling impeller according to an embodiment of the present invention;

[0031] In the diagram: 1. Impeller; 11. Blade; 12. Middle plate; 13. Lug; 14. Shaft plate; 15. Front plate; 2. Cooling device; 21. Housing; 22. Insulation material; 23. Cover plate; 3. Motor; 31. Motor shaft; 4. Heat dissipation impeller; 41. Heat dissipation middle plate; 42. Heat dissipation blade; 43. Second through hole; 5. Connector; 61. First bearing; 62. Second bearing; x, First direction. Detailed Implementation

[0032] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.

[0033] Combined with appendix Figure 1 To be continued Figure 3 As shown, this patent application provides a high-temperature resistant, volute-less centrifugal fan, comprising:

[0034] Impeller 1 includes blades 11 and a central disk 12. The blades 11 are fixed on the central disk 12, which is circular. The central disk 12 is provided with convex 13 facing the cooling device 2. The convex 13 is strip-shaped, and several convex 13 are radially arranged on the central disk 12. The impeller 1 is used to rotate and generate wind power. The impeller 1 dissipates heat by utilizing the convex 13 on the central disk 12, thereby improving the overall high-temperature resistance of the centrifugal fan.

[0035] The cooling device 2 is arranged side by side with the impeller 1 along the first direction x. The cooling device 2 is located on the side of the impeller 1 near the middle disk 12. The cooling device 2 includes a housing 21 and a heat insulation material 22. The heat insulation material 22 is disposed inside the housing 21. By using the cooling device 2, the impeller 1 is cooled down, thereby cooling the centrifugal fan, further improving the high temperature resistance of the centrifugal fan, and thus improving the applicability of the centrifugal fan.

[0036] Continue to combine with the appendix Figure 1 and attached Figure 2 As shown, in some embodiments, the high-temperature resistant volute-less centrifugal fan further includes a motor 3, which is located on the side of the cooling device 2 away from the impeller 1. The motor 3 includes a motor shaft 31, which extends along a first direction x. The cooling device 2 is provided with a first through hole, through which the motor shaft 31 passes and connects to the impeller 1. The motor 3 is used to drive the impeller 1 to rotate. The motor shaft 31 passing through the first through hole and connecting to the impeller 1 is beneficial for cooling the motor shaft 31 using the cooling device 2.

[0037] Continue to combine with the appendix Figure 2 As shown, in some embodiments, the high-temperature resistant volute-less centrifugal fan also includes a heat dissipation impeller 4, which is disposed on the motor shaft 31 and between the cooling device 2 and the motor 3. The heat dissipation impeller 4 is used to dissipate heat from the motor 3 and the internal space of the centrifugal fan, thereby further improving the heat resistance of the centrifugal fan.

[0038] Continue to combine with the appendix Figure 4 As shown, in some embodiments, the heat dissipation impeller 4 includes a heat dissipation disk 41 and heat dissipation blades 42. The heat dissipation blades 42 are fixed on the heat dissipation disk 41, and the heat dissipation disk 41 is fixed on the motor shaft 31, thereby driving the heat dissipation impeller 4 to rotate by the motor shaft 31.

[0039] Continue to combine with the appendix Figure 4 As shown, in some embodiments, the heat dissipation plate 41 is provided with a second through hole 43, and the heat dissipation plate 41 is fixed to the motor shaft 31 through the second through hole 43.

[0040] Continue to combine with the appendix Figure 1 and attached Figure 2 As shown, in some embodiments, the high-temperature resistant volute-less centrifugal fan also includes a connector 5, which is horn-shaped. The smaller end of the connector 5 is connected to the motor 3, and the larger end is connected to the cooling device 2. The connector 5 is used to connect the cooling device 2 and the motor 3, thereby making the centrifugal fan a whole.

[0041] Continue to combine with the appendix Figure 2 As shown, in some embodiments, the high-temperature resistant volute-less centrifugal fan further includes bearings, the bearings including a first bearing 61 and a second bearing 62, the cooling device 2 is connected to the motor shaft 31 through the first bearing 61, the connecting member 5 is connected to the motor shaft 31 through the second bearing 62, the bearings are used to assist the rotation of the motor shaft, the first bearing 61 is used to prevent the cooling device 2 from being driven by the motor shaft 31, and the second bearing 62 is used to prevent the connecting member 5 from being driven by the motor shaft 31.

[0042] Continue to combine with the appendix Figure 3 As shown, in some embodiments, the middle disk 12 is provided with a shaft disk 14, and the end of the motor shaft 31 away from the motor 3 is fixed inside the shaft disk 14. The shaft disk 14 is used to fix the top end of the motor shaft 31 to the middle disk 12, thereby driving the impeller 1 to rotate using the motor shaft 31.

[0043] Continue to combine with the appendix Figure 2 and attached Figure 3 As shown, in some embodiments, the impeller 1 further includes a front disc 15, which is trumpet-shaped. The end of the front disc 15 with a larger opening is connected to the blade 11. The front disc 15 helps to guide the direction of the fluid blown out by the impeller 1, thereby increasing the wind power.

[0044] Continue to combine with the appendix Figure 2 As shown, in some embodiments, the cooling device 2 further includes a cover plate 23, and the housing 21 is provided with a filling port. The cover plate 23 covers the filling port. The cover plate 23 is easy to disassemble and install, thereby facilitating the replacement of the heat insulation material 22.

[0045] In summary, this utility model provides a high-temperature resistant, volute-less centrifugal fan. By utilizing the fins on the central plate for heat dissipation, the overall high-temperature resistance of the centrifugal fan is improved. By using a cooling device to cool the impeller, the centrifugal fan is cooled, further improving its high-temperature resistance and thus its applicability. By using a cooling impeller to dissipate heat from the motor and the internal space of the centrifugal fan, the heat resistance of the centrifugal fan is further improved.

[0046] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A high-temperature resistant, volute-less centrifugal fan, characterized in that, include: An impeller, comprising blades and a central disk, wherein the blades are fixed on the central disk and the central disk is provided with protrusions; A cooling device, wherein the impeller and the cooling device are arranged side by side along a first direction, the fins face the cooling device, the cooling device is disposed on the side of the impeller near the central plate, the cooling device includes a housing and a heat insulation material, the heat insulation material being disposed inside the housing.

2. The high-temperature resistant, volute-less centrifugal fan according to claim 1, characterized in that, It also includes a motor, which is located on the side of the cooling device away from the impeller. The motor includes a motor shaft that extends along a first direction. The cooling device has a first through hole through which the motor shaft passes and connects to the impeller.

3. The high-temperature resistant, volute-less centrifugal fan according to claim 2, characterized in that, It also includes a heat dissipation impeller, which is mounted on the motor shaft and positioned between the cooling device and the motor.

4. The high-temperature resistant, volute-less centrifugal fan according to claim 3, characterized in that, The heat dissipation impeller includes a heat dissipation disk and heat dissipation blades. The heat dissipation blades are fixed on the heat dissipation disk, and the heat dissipation disk is fixed on the motor shaft.

5. The high-temperature resistant, volute-less centrifugal fan according to claim 4, characterized in that, The heat dissipation plate is provided with a second through hole, and the heat dissipation plate is fixed to the motor shaft through the second through hole.

6. The high-temperature resistant, volute-less centrifugal fan according to claim 2, characterized in that, It also includes a connector, which is flared in shape. The smaller end of the connector is connected to the motor, and the larger end is connected to the cooling device.

7. The high-temperature resistant, volute-less centrifugal fan according to claim 6, characterized in that, It also includes bearings, which include a first bearing and a second bearing. The cooling device is connected to the motor shaft through the first bearing, and the connecting member is connected to the motor shaft through the second bearing.

8. The high-temperature resistant, volute-less centrifugal fan according to claim 2, characterized in that, The middle plate is provided with a shaft plate, and the end of the motor shaft away from the motor is fixed inside the shaft plate.

9. The high-temperature resistant, volute-less centrifugal fan according to claim 1, characterized in that, The impeller also includes a front disc, which is trumpet-shaped, and the blades are connected to the larger end of the front disc.

10. The high-temperature resistant, volute-less centrifugal fan according to claim 1, characterized in that, The cooling device also includes a cover plate, and the housing is provided with a filling port, the cover plate covering the filling port.

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