CN210686386U - Axial flow fan - Google Patents
Axial flow fan Download PDFInfo
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- CN210686386U CN210686386U CN201921672782.8U CN201921672782U CN210686386U CN 210686386 U CN210686386 U CN 210686386U CN 201921672782 U CN201921672782 U CN 201921672782U CN 210686386 U CN210686386 U CN 210686386U
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- fan
- noise reduction
- shell
- mounting
- damping
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Abstract
The utility model provides an axial fan belongs to fan technical field. It has solved the big problem of current axial fan noise. The axial flow fan comprises a fan shell with a supporting seat frame, wherein a driving motor with an output shaft is installed in the fan shell, the output shaft of the driving motor is connected with an impeller, a damping component is arranged below the supporting seat frame of the fan shell, the damping component is composed of a damping box body arranged right below the supporting seat frame and a mounting plate fixedly connected with the supporting seat frame, a damping unit is arranged between the lower end face of the mounting plate and the bottom end face in the damping box body, a noise reduction mechanism is arranged in the fan shell, and the noise reduction mechanism is composed of a noise reduction ring I fixedly connected with the fan shell and arranged at the left side of the driving motor, a noise reduction ring II fixedly connected with the fan shell and arranged at the impeller and a noise reduction ring III fixedly connected with the fan shell and arranged at the right. The utility model has the advantages of vibration/noise reduction.
Description
Technical Field
The utility model belongs to the technical field of the fan, a axial fan is related to.
Background
Axial flow fans are known as axial flow of fluid into an impeller and out in an axial direction. Therefore, the axial flow fan is applied to ventilation and air exchange in public places on a large scale, but when the axial flow fan runs, the noise emitted by the axial flow fan is relatively large, and pedestrians in public places can feel relatively uncomfortable with the noise, so that the design of the axial flow fan for reducing the noise brings forward the research schedule of people.
Disclosure of Invention
The utility model aims at the above-mentioned problem that exists among the prior art, provide an axial fan with shock attenuation effect, noise reduction.
The purpose of the utility model can be realized by the following technical proposal: an axial flow fan comprises a fan shell with a supporting seat frame, a driving motor with an output shaft is arranged in the fan shell, an impeller is connected on the output shaft of the driving motor, it is characterized in that a damping component is arranged below the supporting seat frame of the fan shell, the damping component consists of a damping box body arranged right below the supporting seat frame and a mounting plate fixedly connected with the supporting seat frame, an opening for installing the mounting plate is arranged on the damping box body, a damping unit is arranged between the lower end surface of the mounting plate and the bottom end surface in the damping box body, the fan shell is internally provided with a noise reduction mechanism for reducing noise, and the noise reduction mechanism consists of a noise reduction ring I fixedly connected with the fan shell and arranged at the left side of the driving motor, a noise reduction ring II fixedly connected with the fan shell and arranged at the impeller, and a noise reduction ring III fixedly connected with the fan shell and arranged at the right side of the impeller.
In an axial flow fan of the above-mentioned, the internal perisporium of the damping box body on be provided with the damping rubber cover that hugs closely with the internal perisporium of corresponding damping box body, the internal perisporium of this damping rubber cover is hugged closely with the outer peripheral wall of mounting panel, and the up end of this damping rubber cover is higher than the up end of mounting panel.
In the axial flow fan, the damping unit is a damping water cushion, the damping water cushion is divided into a plurality of small and individually inflatable sealed water filling spaces by isolation lines, and the damping water cushion is made of a high-elasticity PVC material.
In the axial flow fan, the two end parts of the fan shell are respectively provided with a first mounting shell and a second mounting shell which are detachably connected with the fan shell and used for mounting the corresponding noise reduction ring I and the corresponding noise reduction ring III.
In the axial flow fan, the first extending part which axially extends towards the inside of the first mounting shell and penetrates into the first mounting shell is arranged on the end surface of the fan shell, which is attached to the first mounting shell, the joint of the fan shell and the mounting shell is sleeved with a first connecting ring which fixedly connects the fan shell and the mounting shell, the first connecting ring is detachably connected with the first fan shell and the first mounting shell through a plurality of studs, the end surface of the fan shell, which is jointed and connected with the mounting shell II, is provided with a second extension part which axially extends into the mounting shell II and penetrates into the mounting shell II, a connecting ring II which enables the fan shell and the mounting shell to be fixedly connected is sleeved at the joint of the fan shell and the mounting shell II, the connecting ring II is detachably connected with the fan shell and the mounting shell I through a plurality of studs.
In the above axial flow fan, the outer peripheral wall of the fan casing is provided with two protrusions which protrude radially outward and limit the positions of the first connecting ring and the second connecting ring.
In the axial flow fan, the annular drying agent which is fixedly connected with the fan shell and packaged by the air-permeable packaging bag is arranged on the inner peripheral wall of the fan shell at the position of the driving motor.
In the above axial flow fan, the cross sections of the first noise reduction ring and the second noise reduction ring are both in two trapezoidal structures which are vertically symmetrical, the cross section of the second noise reduction ring is in two rectangular structures which are vertically symmetrical, and the first noise reduction ring, the second noise reduction ring and the third noise reduction ring are all made of sound-absorbing materials packaged by air-permeable packaging grids.
In the above axial flow fan, the length a of the second noise reduction ring is not smaller than the length B of the impeller.
Compared with the prior art, the axial flow fan has the following advantages:
1. the fan shell is provided with a damping assembly below the supporting seat frame, the damping assembly consists of a damping box body arranged right below the supporting seat frame and a mounting plate fixedly connected with the supporting seat frame, the damping box body is provided with an opening for mounting the mounting plate, and a damping unit is arranged between the lower end surface of the mounting plate and the bottom end surface in the damping box body;
2. the fan shell is internally provided with a noise reduction mechanism for reducing noise, the noise reduction mechanism consists of a first noise reduction ring fixedly connected with the fan shell and arranged at the left side of the driving motor, a second noise reduction ring fixedly connected with the fan shell and arranged at the impeller, and a third noise reduction ring fixedly connected with the fan shell and arranged at the right side of the impeller.
Drawings
Fig. 1 is a schematic sectional structure view of the axial flow fan.
In the figure, 1, a supporting seat frame; 2. a fan housing; 3. a drive motor; 4. an impeller; 5. a shock absorbing assembly; 6. a damping box body; 7. mounting a plate; 8. a damping unit; 9. a noise reduction mechanism; 10. a first noise reduction ring; 11. a second noise reduction ring; 12. a third noise reduction ring; 13. a shock-absorbing rubber sleeve; 14. mounting a first shell; 15. mounting a second shell; 16. a first extending part; 17. a connecting ring I; 18. a second extension part; 19. a connecting ring II; 20. a boss portion; 21. an annular desiccant; 22. a stud.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in figure 1, the axial flow fan comprises a fan shell 2 with a supporting seat frame 1, the supporting seat frame 1 and the fan shell 2 are arranged integrally, a driving motor 3 with an output shaft is arranged in the fan shell 2, the driving motor 3 is fixedly connected with the fan shell 2 through a plurality of support rods, an impeller 4 is connected onto the output shaft of the driving motor 3, a damping component 5 is arranged below the supporting seat frame 1 on the fan shell 2, the damping component 5 is composed of a damping box body 6 arranged right below the supporting seat frame 1 and a mounting plate 7 fixedly connected with the supporting seat frame 1, an opening for mounting the mounting plate 7 is arranged on the damping box body 6, a damping unit 8 is arranged between the lower end surface of the mounting plate 7 and the bottom end surface in the damping box body 6, a noise reduction mechanism 9 which is fixedly connected with the fan shell 2 and is used for reducing noise is arranged in the fan shell 2, the noise reduction mechanism 9 is composed of a noise reduction ring I10 fixedly connected with the fan shell 2 and arranged at the left side of the driving motor 3, a noise reduction ring II 11 fixedly connected with the fan shell 2 and arranged at the impeller 4, and a noise reduction ring III 12 fixedly connected with the fan shell 2 and arranged at the right side of the impeller 4.
As an optimal structure, the cross sections of the first noise reduction ring 10 and the second noise reduction ring 11 are of two vertically symmetrical trapezoid structures, the cross section of the second noise reduction ring 11 is of two vertically symmetrical rectangular structures, the first noise reduction ring 10, the second noise reduction ring 11 and the third noise reduction ring 12 are all made of sound-absorbing materials with air-permeable packaging grid packages, and the length A of the second noise reduction ring 11 is not smaller than the length B of the impeller 4.
Further saying, for it is better to be the shock attenuation effect, be provided with the yielding rubber cover 13 that hugs closely with corresponding shock attenuation box 6 internal peripheral wall on the internal perisporium of shock attenuation box 6, the internal perisporium of yielding rubber cover 13 hugs closely with the outer peripheral wall of mounting panel 7 mutually, the up end of yielding rubber cover is higher than the up end of mounting panel 7, shock-absorbing unit 8 is the shock attenuation water cushion, divide into the little and alone inflatable sealed space of filling water of a plurality of by the separation line in the shock attenuation water cushion, the shock attenuation water cushion is made by high elasticity PVC material.
In more detail, in order to facilitate the installation of the first noise reduction ring 10 and the second noise reduction ring 11 and the maintenance and replacement of the first noise reduction ring and the second noise reduction ring, a first installation shell 14 and a second installation shell 15 which are detachably connected with the fan shell 2 and are used for installing the corresponding first noise reduction ring 10 and the corresponding third noise reduction ring 12 are respectively arranged at two end parts of the fan shell 2, a first extension part 16 which axially extends into the first installation shell 14 and penetrates into the first installation shell 14 is arranged on the end surface of the first installation shell 14, a first connection ring 17 which fixedly connects the fan shell 2 and the first installation shell 14 is sleeved at the joint of the first fan shell 2 and the first installation shell 14, the first connection ring 17 is detachably connected with the fan shell 2 and the first installation shell 14 through a plurality of studs 22, a second extension part 18 which axially extends into the second installation shell 15 and penetrates into the second installation shell 15 is arranged on the end surface of the first fan shell 2 and the second installation shell 15, the joint of the fan shell 2 and the second mounting shell 15 is sleeved with a second connecting ring 19 which enables the fan shell 2 and the second mounting shell 15 to be fixedly connected, and the second connecting ring 19 is detachably connected with the fan shell 2 and the first mounting shell 14 through a plurality of studs 22.
In more detail, the stud 22 on the first connecting ring 17 and the second connecting ring 19 can be conveniently installed through limiting, and two protrusions 20 which protrude outwards in the radial direction and limit the positions of the first connecting ring 17 and the second connecting ring 19 are arranged on the outer peripheral wall of the fan shell 2.
In more detail, in order to reduce the corrosion of moisture to the driving motor 3 when the airflow axially passes through the driving motor 3, an annular drying agent 21 which is fixedly connected with the fan housing 2 and packaged by a breathable packaging bag is arranged on the inner peripheral wall of the fan housing 2 at the position of the driving motor 3.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (9)
1. An axial flow fan comprises a fan shell (2) with a supporting seat frame (1), wherein a driving motor (3) with an output shaft is installed in the fan shell (2), the output shaft of the driving motor (3) is connected with an impeller (4), and the axial flow fan is characterized in that a damping component (5) is arranged below the supporting seat frame (1) of the fan shell (2), the damping component (5) consists of a damping box body (6) arranged right below the supporting seat frame (1) and a mounting plate (7) fixedly connected with the supporting seat frame (1), an opening for mounting the mounting plate (7) is formed in the damping box body (6), a damping unit (8) is arranged between the lower end face of the mounting plate (7) and the bottom end face in the damping box body (6), a noise reduction mechanism (9) for reducing noise is arranged in the fan shell (2), the noise reduction mechanism (9) is composed of a noise reduction ring I (10) fixedly connected with the fan shell (2) and arranged at the left side of the driving motor (3), a noise reduction ring II (11) fixedly connected with the fan shell (2) and arranged at the impeller (4), and a noise reduction ring III (12) fixedly connected with the fan shell (2) and arranged at the right side of the impeller (4).
2. The axial flow fan according to claim 1, wherein the inner peripheral wall of the damping box body (6) is provided with a damping rubber sleeve (13) closely attached to the inner peripheral wall of the corresponding damping box body (6), the inner peripheral wall of the damping rubber sleeve (13) is closely attached to the outer peripheral wall of the mounting plate (7), and the upper end surface of the damping rubber sleeve is higher than the upper end surface of the mounting plate (7).
3. The axial flow fan as claimed in claim 1, wherein the damping unit (8) is a damping water cushion, the damping water cushion is divided into a plurality of small and individually inflatable sealed water-filled spaces by isolation lines, and the damping water cushion is made of high-elasticity PVC material.
4. The axial flow fan as claimed in claim 1, wherein the fan housing (2) is provided at both ends thereof with a first mounting housing (14) and a second mounting housing (15) detachably connected to the fan housing (2) for mounting the corresponding noise reduction ring I (10) and the corresponding noise reduction ring III (12), respectively.
5. The axial flow fan as claimed in claim 1, wherein a first extension portion (16) axially extending into the first mounting housing (14) and penetrating into the first mounting housing (14) is disposed on an end surface of the first fan housing (2) and the first mounting housing (14) in a joint connection manner, a first connecting ring (17) for fixedly connecting the first fan housing (2) and the first mounting housing (14) is sleeved at a joint of the first fan housing (2) and the first mounting housing (14), the first connecting ring (17) is detachably connected with the first fan housing (2) and the first mounting housing (14) through a plurality of studs (22), a second extension portion (18) axially extending into the second mounting housing (15) and penetrating into the second mounting housing (15) is disposed on an end surface of the second fan housing (2) and the second mounting housing (15) in a joint connection manner, the joint of the fan shell (2) and the second mounting shell (15) is sleeved with a second connecting ring (19) which enables the fan shell (2) and the second mounting shell (15) to be fixedly connected, and the second connecting ring (19) is detachably connected with the fan shell (2) and the first mounting shell (14) through a plurality of studs (22).
6. The axial flow fan of claim 5, wherein the outer peripheral wall of the fan housing (2) is provided with two protrusions (20) protruding radially outward and limiting the positions of the first connecting ring (17) and the second connecting ring (19).
7. The axial flow fan according to claim 1, wherein an annular desiccant (21) fixedly connected with the fan housing (2) and packaged by a breathable packaging bag is arranged on the inner peripheral wall of the fan housing (2) at the position of the drive motor (3).
8. The axial flow fan according to claim 1, wherein the cross sections of the noise reduction ring I (10) and the noise reduction ring II (11) are both in two trapezoidal structures which are vertically symmetrical, the cross section of the noise reduction ring II (11) is in two rectangular structures which are vertically symmetrical, and the noise reduction ring I (10), the noise reduction ring II (11) and the noise reduction ring III (12) are all made of sound absorption materials with air-permeable packaging grid packaging.
9. The axial fan of claim 1, wherein the length a of the second noise reduction ring (11) is not less than the length B of the impeller (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921672782.8U CN210686386U (en) | 2019-10-08 | 2019-10-08 | Axial flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921672782.8U CN210686386U (en) | 2019-10-08 | 2019-10-08 | Axial flow fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210686386U true CN210686386U (en) | 2020-06-05 |
Family
ID=70885815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921672782.8U Expired - Fee Related CN210686386U (en) | 2019-10-08 | 2019-10-08 | Axial flow fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210686386U (en) |
-
2019
- 2019-10-08 CN CN201921672782.8U patent/CN210686386U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200605 Termination date: 20211008 |
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| CF01 | Termination of patent right due to non-payment of annual fee |