Volute-free fan support
By designing a circular tube support and sound-absorbing pad, the complex structure and vibration issues of the volute-less fan support were solved, resulting in reduced wind resistance and vibration, and improved fan performance and stability.
Patent Information
- Application Number
- CN202520349759.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-03
AI Technical Summary
Existing volute-less fan support structures are complex and difficult to manufacture. The steel plates are heavy and have high wind resistance, which affects the fan performance and makes it prone to vibration. The axial distance of the impeller is also difficult to adjust.
The design incorporates a round tube support and sound-absorbing pads to reduce wind resistance and vibration noise. The fan blades are adjustable via a tapered sleeve shaft disc, and the fan is supported by an extension plate to further reduce vibration noise.
By reducing wind resistance under fixed fan conditions, lowering vibration and noise during operation, adjusting and stabilizing the fan blades, and improving the overall performance and stability of the fan.
Smart Images

Figure CN223894453U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to fan technical field, concretely relates to no volute fan support. BACKGROUND
[0002] No volute fan is a kind of high-efficiency energy-saving fan, its design is different from traditional volute fan. Traditional volute fan is driven by volute inlet and rotor to compress and discharge gas, and this design will generate greater friction loss in the recycling process. And no volute fan is directly driven by impeller, and there is no volute and its accompanying obstacles, so the working efficiency is higher.
[0003] Through the retrieval, the existing patent (CN217300991U) discloses a kind of high-efficiency no volute fan support, including fixed plate, support column, damping pad and bottom plate;The center of the fixed plate is provided with mounting hole, the bottom of the fixed plate is connected with multiple support columns around the same circumference, the bottom of each support column is connected with a damping pad, the bottom plate is fixedly connected with the bottom surface of damping pad, and the center of the bottom plate is provided with air inlet.In the basis of the above scheme and as the preferred scheme of the above scheme, the fixed plate and support column, support column and damping pad, damping pad and bottom plate are detachably connected.In the basis of the above scheme and as the preferred scheme of the above scheme, the cross section of the support column is "L" shape, and the right angle of "L" shape is towards center.In the basis of the above scheme and as the preferred scheme of the above scheme, the cross section of the support column gradually increases from top to bottom.In the basis of the above scheme and as the preferred scheme of the above scheme, the both ends of the support column are respectively outwardly folded to form mounting piece, and the support column is fixedly connected with fixed plate and damping pad through mounting piece.In the basis of the above scheme and as the preferred scheme of the above scheme, the fixed plate is regular polygon, and each vertex of the fixed plate is connected with support column.In the basis of the above scheme and as the preferred scheme of the above scheme, the fixed plate is reserved with connecting hole fixedly connected with motor.In the basis of the above scheme and as the preferred scheme of the above scheme, each side of the fixed plate and bottom plate is upwardly folded to form outward turning edge, and outward turning edge is perpendicular to fixed plate and bottom plate.The utility model has the beneficial effect that: this high-efficiency no volute fan support is provided with damping pad between support plate and bottom plate, can effectively alleviate the vibration of the whole equipment when motor operates;The cross section of support column is "L" shape, which meets the strength while saving materials;The fixed plate and support column, support column and damping pad, damping pad and bottom plate are detachably connected, which is convenient for updating and maintenance.
[0004] But in the above scheme, at present, most of the volute fan support is welded by using steel plate flanging or channel steel, angle steel, etc., the structure is complex and not easy to process, the whole piece of steel plate is also heavy, the wind resistance of the plane steel plate is large and easy to affect the performance of the fan, and the strength of the fan support is not enough, vibration problem is easy to occur in the use process, and the axial distance of the impeller is not easy to adjust.
[0005] In view of this, the utility model provides a voluteless fan support. Utility model content
[0006] The utility model provides a voluteless fan support, solve the problem that in the related art, at present, most of the volute fan support is welded by using steel plate flanging or channel steel, angle steel, etc., the structure is complex and not easy to process, the whole piece of steel plate is also heavy, the wind resistance of the plane steel plate is large and easy to affect the performance of the fan, and the strength of the fan support is not enough, vibration problem is easy to occur in the use process, and the axial distance of the impeller is not easy to adjust.
[0007] The technical scheme of the utility model is as follows: a voluteless fan support, including the air inlet panel: the four corners of one side of the air inlet panel are fixedly connected with panel fixed plate, the panel fixed plate is distributed at the four corners of one side of the air inlet panel, the surface of the upper and lower two panel fixed plates of one side is welded with round pipe support no.
[0008] Preferably, the two ends of the round pipe support no.
[0009] Preferably, the inside of the panel fixed plate is screw-connected with fixed screw, the panel fixed plate and the air inlet panel are provided with sound-absorbing pad, and the two sides of the sound-absorbing pad are attached to the panel fixed plate and the air inlet panel.
[0010] Preferably, the round pipe support no.
[0011] Preferably, the annular outer side of the flow distribution fan is provided with an air outlet, one side of the flow distribution fan is provided with an air inlet two, the air inlet two is communicated with the air outlet, the air outlet is divided into a plurality of air outlet positions uniformly distributed by the arc-shaped plate, and the air inlet two is used for air inlet after the motor is started.
[0012] Preferably, the inner side of the air inlet panel is fixedly connected with an air inlet one, the air inlet one is inserted into the inner side of the air inlet two, and the air inlet one is communicated with the air inlet two.
[0013] Preferably, the inner side of the air inlet panel, the panel fixing plate and the sound-absorbing pad are screw-connected with fixing screws, and the air inlet panel, the panel fixing plate and the sound-absorbing pad are fixedly connected through the fixing screws.
[0014] Preferably, the air inlet panel is fixedly connected with an extension plate on one side of the circular pipe support one and the circular pipe support two, the other end of the extension plate is fixedly connected with a support frame, the support frame is located directly below the motor, the extension plate is fixed to the middle position of one side of the air inlet panel, and the whole fan can be supported through the extension plate, and vibration noise generated by contact is reduced under the condition of supporting and stabilizing.
[0015] The utility model discloses the beneficial effects are:
[0016] In the utility model, the circular pipe support one and the circular pipe support two can reduce wind resistance under the condition of fixing the fan, the sound-absorbing pad can reduce vibration noise of the fan during operation, and the taper sleeve disc can adjust the fan blade.
[0017] In the utility model, the air inlet two is used for air inlet after the motor is started, the taper sleeve disc and the fan blade are rotated, air is inlet through the air inlet two, and the air outlet is used for shunting in multiple directions, the whole fan can be supported through the extension plate, and vibration noise generated by contact is reduced under the condition of supporting and stabilizing. ACCURACY OF DRAWINGS
[0018] The utility model makes further detailed explanation in combination with the specific embodiment and the accompanying drawings.
[0019] Figure 1 It is the stereoscopic structure schematic diagram of the utility model from the top;
[0020] Figure 2 It is the stereoscopic structure schematic diagram of the utility model from the back;
[0021] Figure 3 It is the stereoscopic schematic diagram of the utility model from the bottom;
[0022] Figure 4It is a rear view structure schematic diagram of the utility model.
[0023] Figure 5 It is a side view internal structure schematic diagram of the utility model.
[0024] In the drawing: 1, air inlet panel; 2, panel fixing plate; 3, fixing screw; 4, sound-absorbing pad; 5, round pipe support one; 6, round pipe support two; 7, connecting plate; 8, motor; 9, taper sleeve shaft disc; 10, fan blade; 11, shunt fan; 12, extension plate; 13, support frame; 14, air inlet one; 15, air inlet two; 16, air outlet. DETAILED DESCRIPTION
[0025] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are involved in the protection scope of the utility model. Embodiment 1
[0026] The preferred embodiment of the volute-free fan support provided by the utility model is as follows Figures 1 to 5 As shown: volute-free fan support, including air inlet panel 1: the four corners of one side of air inlet panel 1 are fixedly connected with panel fixing plate 2, panel fixing plate 2 is distributed at the four corners of one side of air inlet panel 1, the surfaces of the upper and lower two panel fixing plates 2 on one side are welded with round pipe support one 5, the surfaces of the upper and lower two panel fixing plates 2 on the other side are welded with round pipe support two 6, round pipe support one 5 and round pipe support two 6 are both arranged in U shape, connecting plate 7 is fixedly connected between round pipe support one 5 and round pipe support two 6, motor 8 is fixedly connected on the outer side of connecting plate 7, the output end of motor 8 is fixedly connected with taper sleeve shaft disc 9, the other end of taper sleeve shaft disc 9 is fixedly connected with fan blade 10, shunt fan 11 is fixedly connected between the two taper sleeve shaft discs 9, taper sleeve shaft disc 9 and fan blade 10 are located inside shunt fan 11, sound-absorbing pad 4 is arranged between panel fixing plate 2 and air inlet panel 1.
[0027] It should be noted that the existing fan support still has certain deficiencies, at present, most volute-free fan supports are made of steel plate flanging or welding with channel steel, angle steel and the like, the structure is complex and not easy to process, the whole steel plate is also heavy, the flat steel plate has large wind resistance, which easily affects the performance of the fan, and the strength of the fan support is not enough, vibration problem is easily generated in the use process, and the impeller axial distance is not easy to adjust.
[0028] In the embodiment, the circular pipe support one 5 and the circular pipe support two 6 can reduce the wind resistance in the condition of fixing the fan, the sound-absorbing pad 4 can reduce the vibration noise of the fan during operation, and the taper sleeve shaft disc 9 can adjust the fan blade 10.
[0029] In the further preferred embodiment of the utility model, the two ends of the circular pipe support one 5 are fixedly connected with the upper and lower panel fixed plates 2 respectively, and the two ends of the circular pipe support two 6 are welded with the upper and lower panel fixed plates 2 on the other side.
[0030] In the further preferred embodiment of the utility model, the panel fixed plate 2 is internally screw-connected with the fixing screw 3, the sound-absorbing pad 4 is arranged between the panel fixed plate 2 and the air inlet panel 1, and the two sides of the sound-absorbing pad 4 are attached to the panel fixed plate 2 and the air inlet panel 1.
[0031] In the further preferred embodiment of the utility model, the circular pipe support one 5 and the circular pipe support two 6 are arranged in an inclined manner, and the inclined directions of the circular pipe support one 5 and the circular pipe support two 6 are oppositely arranged. Embodiment 2
[0032] On the basis of embodiment 1, the preferred embodiment of the fan support without volute provided by the utility model like Figures 1 to 5 As shown in the figure, the annular outer side of the shunt fan 11 is provided with an air outlet 16, one side of the shunt fan 11 is provided with an air inlet two 15, the air inlet two 15 is communicated with the air outlet 16, and the air outlet 16 is divided into multiple air outlet positions uniformly distributed by an arc-shaped plate.
[0033] In the embodiment, after the motor 8 is started, the taper sleeve shaft disc 9 and the fan blade 10 rotate to take in air from the air inlet two 15, and the air is shunted in multiple directions by the air outlet 16.
[0034] In the further preferred embodiment of the utility model, the air inlet panel 1 is internally fixedly connected with the air inlet one 14, the air inlet one 14 is inserted into the inside of the air inlet two 15, and the air inlet one 14 is communicated with the air inlet two 15.
[0035] In the further preferred embodiment of the utility model, the air inlet panel 1, the panel fixed plate 2 and the sound-absorbing pad 4 are internally screw-connected with the fixing screw 3, and the air inlet panel 1, the panel fixed plate 2 and the sound-absorbing pad 4 are fixedly connected through the fixing screw 3.
[0036] In the further preferred embodiment of the utility model, the air inlet panel 1 is fixedly connected with the extension plate 12 on one side of the circular pipe support one 5 and the circular pipe support two 6, the other end of the extension plate 12 is fixedly connected with the support frame 13, the support frame 13 is located directly below the motor 8, and the extension plate 12 is fixed to the middle position on one side of the air inlet panel 1.
[0037] In this embodiment, the extension plate 12 can support the entire fan, reducing vibration and noise caused by contact while ensuring its stability.
[0038] The working principle of this utility model is as follows: When the fan is fixed by the first round tube support 5 and the second round tube support 6, the tubular shape can reduce wind resistance to a greater extent compared with the plate shape. During operation, the sound-absorbing pad 4 can reduce vibration and noise of the fan. The cone sleeve shaft disc 9 can adjust the fan blades 10. After the motor 8 is started, the cone sleeve shaft disc 9 and the fan blades 10 rotate to take in air through the second air inlet 15 and split the air in multiple directions through the air outlet 16. The extension plate 12 can support the entire fan, reducing the vibration and noise generated by contact while supporting its stability.
[0039] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A fan bracket without a volute, characterized in that, Includes an air inlet panel (1): Panel fixing plates (2) are fixedly connected to the four corners of one side of the air inlet panel (1). The panel fixing plates (2) are distributed at the four corners of one side of the air inlet panel (1). A circular tube bracket (5) is welded to the surface of the upper and lower panel fixing plates (2) on one side, and a circular tube bracket (6) is welded to the surface of the upper and lower panel fixing plates (2) on the other side. Both the circular tube bracket (5) and the circular tube bracket (6) are U-shaped. A connecting plate (7) is fixedly connected between the two (6), and a motor (8) is fixedly connected to the outside of the connecting plate (7). A conical sleeve shaft disk (9) is fixedly connected to the output end of the motor (8). A fan blade (10) is fixedly connected to the other end of the conical sleeve shaft disk (9). A split fan (11) is fixedly connected between the two conical sleeve shaft disks (9). The conical sleeve shaft disk (9) and the fan blade (10) are located inside the split fan (11). A sound-absorbing pad (4) is provided between the panel fixing plate (2) and the air inlet panel (1).
2. The volute-less fan bracket according to claim 1, characterized in that, The two ends of the first round tube bracket (5) are fixedly connected to the upper and lower panel fixing plates (2) respectively, and the two ends of the second round tube bracket (6) are welded to the upper and lower panel fixing plates (2) on the other side respectively.
3. The volute-less fan bracket according to claim 1, characterized in that, The internal thread of the panel fixing plate (2) is connected with fixing screws (3), and a sound-absorbing pad (4) is provided between the panel fixing plate (2) and the air inlet panel (1). The two sides of the sound-absorbing pad (4) are in contact with the panel fixing plate (2) and the air inlet panel (1).
4. The volute-less fan bracket according to claim 1, characterized in that, The first round tube support (5) and the second round tube support (6) are inclined, and the inclination directions of the first round tube support (5) and the second round tube support (6) are opposite to each other.
5. The volute-less fan bracket according to claim 1, characterized in that, An air outlet (16) is provided on the outer ring of the diverter fan (11), and an air inlet (15) is provided on one side of the diverter fan (11). The air inlet (15) is connected to the air outlet (16), and the air outlet (16) is divided into multiple evenly distributed air outlet positions by an arc plate.
6. The volute-less fan bracket according to claim 5, characterized in that, The air inlet panel (1) is fixedly connected to an air inlet one (14), which is inserted into the air inlet two (15), and the air inlet one (14) and the air inlet two (15) are connected.
7. The volute-less fan bracket according to claim 1, characterized in that, The air inlet panel (1), panel fixing plate (2) and sound-absorbing pad (4) are internally threaded with fixing screws (3), and the air inlet panel (1), panel fixing plate (2) and sound-absorbing pad (4) are all fixedly connected by fixing screws (3).
8. The volute-less fan bracket according to claim 1, characterized in that, The air inlet panel (1) is fixedly connected to an extension plate (12) on one side of the circular tube support one (5) and the circular tube support two (6). The other end of the extension plate (12) is fixedly connected to a support frame (13). The support frame (13) is located directly below the motor (8). The extension plate (12) is fixed in the middle position on one side of the air inlet panel (1).
Citation Information
Patent Citations
Efficient volute-free fan support
CN217300991U