CN219840979U - Damping piece and low-noise centrifugal fan thereof - Google Patents
Damping piece and low-noise centrifugal fan thereof Download PDFInfo
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- CN219840979U CN219840979U CN202320912731.8U CN202320912731U CN219840979U CN 219840979 U CN219840979 U CN 219840979U CN 202320912731 U CN202320912731 U CN 202320912731U CN 219840979 U CN219840979 U CN 219840979U
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- damping
- column body
- centrifugal fan
- placing plate
- shell
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- 238000013016 damping Methods 0.000 title claims abstract description 43
- 238000009413 insulation Methods 0.000 claims description 18
- 230000035939 shock Effects 0.000 claims description 13
- 229920000742 Cotton Polymers 0.000 claims description 12
- 238000003491 array Methods 0.000 claims description 4
- 238000002955 isolation Methods 0.000 claims description 3
- 239000006096 absorbing agent Substances 0.000 claims 3
- 238000000034 method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a damping part and a low-noise centrifugal fan thereof, and belongs to the technical field of centrifugal fans. The device comprises a bearing piece, a plurality of first damping components arranged in the bearing piece in a rectangular array, a plurality of second damping components arranged on the first damping components in a circumferential array, and a placing plate arranged on the bearing piece in a sliding mode and positioned on the top of the first damping components; the bearing piece is of a hollow structure with an open top, wherein the first damping component comprises a first column body with an open hollow structure at the lower end, a first support rod hinged to the lower end of the first column body, and a first reset spring arranged in the first column body and abutted to the top end of the first support rod. According to the utility model, the centrifugal fan on the placing plate is damped in the up-down direction through the first damping component, and the second damping component is matched in the damping process of the placing plate by the first damping component, so that a better damping effect is achieved.
Description
Technical Field
The utility model relates to the technical field of centrifugal fans, in particular to a damping part and a low-noise centrifugal fan thereof.
Background
The centrifugal fan is a machine for increasing the pressure of gas and discharging the gas by means of input mechanical energy. However, in the using process of the centrifugal fan, strong vibration and harshness noise can be generated due to the rapid rotation of the impeller, the surrounding environment is seriously affected, and the service life of the centrifugal fan is shortened under the long-term strong vibration.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provide a damping piece and a low-noise centrifugal fan thereof so as to solve the problems in the prior art.
In order to achieve the above object, the present utility model provides a shock absorbing member according to the following technical scheme, including a carrier, the carrier is a hollow structure with an open top, and further includes:
the rectangular arrays are arranged in the hollow structure;
the circumferential arrays of the second damping components are hinged with the first damping components and the bearing piece;
a placement plate slidably mounted to the carrier and positioned on top of the first shock absorbing assembly; the first damping component is arranged to limit the vibration of the placing plate in the axial direction, and the second damping component is arranged to limit the vibration of the placing plate in the radial direction;
wherein the first shock absorbing assembly comprises:
the lower end of the first column body is provided with an opening;
the first support rod is hinged to the opening of the first column body;
the first reset spring is arranged in the first column body and is abutted to the top end of the first support rod.
Preferably, the second shock absorbing assembly includes:
the first positioning seat is arranged on the side wall of the first damping component;
the top end of the second supporting rod is rotatably arranged on the first positioning seat;
the top end of the second column body is hinged to the bottom end of the second supporting rod; the second column is of a hollow structure with an opening at the top;
the second positioning seat is arranged at the bottom of the bearing piece; the bottom end of the second column body is rotationally connected with the second positioning seat;
the second reset spring is arranged in the second column body and is abutted to the bottom end of the second support rod, and the second support rod and the second reset spring are matched with each other to play a role in damping the vertical direction of the placing plate.
The low-noise centrifugal fan comprises a positioning frame which is arranged on the placing plate;
the servo motor is arranged on the positioning frame;
the shell is arranged on the positioning frame;
the impeller is connected with the servo motor in a driving way through a rotating shaft and is rotationally connected with the shell;
a sound isolation assembly mounted within the housing;
the damping piece is arranged below the positioning frame and is the damping piece.
Preferably, the soundproof assembly includes:
a housing mounted inside the housing; the shell is of a hollow structure with hollowed-out inside;
at least two groups of sound insulation parts are oppositely arranged on the inner wall of the shell; and gaps are formed between the sound insulation parts, and the sound insulation parts are used for starting the centrifugal fan to reduce noise.
Preferably, the soundproof part includes:
at least two groups of wave crest soundproof cotton, one surface of which is a plane and is attached to the inner wall of the shell, and the other surface of which is a concave-convex surface; the crest soundproof cotton concave-convex cotton is mutually attached and placed.
Preferably, the gaps between the soundproof cotton are set to be vacuum, and further noise reduction treatment is carried out on the centrifugal fan.
The beneficial effects are that: the centrifugal fan on the placing plate is damped up and down through the first damping component, and the first damping component is matched with the second damping component to further damp and achieve a better damping effect in the damping process of the placing plate.
Drawings
FIG. 1 is a schematic diagram of a centrifugal fan structure of the present utility model;
FIG. 2 is a schematic view of a shock absorbing device according to the present utility model;
fig. 3 is a schematic view of the sound insulation assembly of the present utility model.
The reference numerals in fig. 1 to 3 are: the bearing member 1, the first damping component 2, the second damping component 3, the placing plate 4, the first column 21, the first supporting rod 22, the first return spring 23, the second supporting rod 31, the second column 32, the second return spring 33, the positioning frame 5, the servo motor 6, the impeller 7, the sound insulation component 8, the housing 81 and the sound insulation part 82.
Detailed Description
Referring to fig. 1 to 3, the present utility model provides a technical solution: the damping piece comprises a bearing piece 1, a plurality of first damping components 2, a plurality of second damping components 3 and a placing plate 4, wherein the bearing piece 1 is of a hollow structure with an opening at the top, the first damping components 2 are arranged in the bearing piece 1 in a rectangular array, the second damping components 3 are circumferentially arranged on the first damping components 2 in an array, the placing plate 4 is slidably arranged on the bearing piece 1, the placing plate 4 is positioned at the top of the first damping components 2, the first damping components 2 comprise a first cylinder 21, a first supporting rod 22 and a first reset spring 23, the first cylinder 21 is of a hollow structure with an opening at the lower end, the first supporting rod 22 is hinged at the lower end of the first cylinder 21, the first reset spring 23 is arranged in the first cylinder 21, the first reset spring 23 is abutted at the top end of the first supporting rod 22, the lower end of the first reset spring 23 and the first supporting rod 22 is matched, the placing plate 4 is slidably arranged on the bearing piece 1, the second damping components 3 comprise a second positioning seat 3, the second positioning seat 31 and a second reset spring 32 are positioned at the top end of the second cylinder 32, the second positioning seat 32 is arranged at the bottom of the second cylinder 32, the second positioning seat 32 is positioned at the bottom of the second cylinder 32, the second positioning seat 32 is hinged at the top end of the second cylinder 32, the second positioning seat 32 is arranged at the bottom of the second positioning seat 32, the second support rod 31 and the second return spring 33 cooperate with each other, and the first damper assembly 2 dampens the vertical direction of the placement plate 4, and the placement plate 4 is further damped by the cooperation of the second return spring 33 and the second support rod 31.
The utility model provides a low noise centrifugal fan, still includes locating rack 5, servo motor 6, shell, impeller 7, sound insulation component 8 and bolster, the locating rack 5 is installed place on the board 4, servo motor 6 installs on the locating rack 5, the shell is installed on the locating rack 5, impeller 7 is connected through the pivot drive servo motor 6, impeller 7 rotates to be connected in the shell, sound insulation component 8 installs in the shell, wherein, sound insulation component 8 includes casing 81 and two at least groups of sound insulation portion 82, adopts two sets of sound insulation portion 82 in this embodiment, casing 81 installs the inside of casing, casing 81 is the hollow structure of inside fretwork, sound insulation portion 82 is relatively set up the inner wall of casing 81, have the clearance between the sound insulation portion 82, the clearance between the sound insulation portion 82 sets up to the vacuum, through the clearance take out the vacuum to reduce the noise of centrifugal fan start-up in-up process, wherein, the portion 82 includes at least two sets of crest cotton, adopts two sets of soundproof cotton to take out the cotton in this embodiment, two sets of soundproof cotton to the effect of the peak cotton, and the noise reduction of the noise-absorbing device of the peak in the performance of the fan of the mutual shock-absorbing plane is reduced, and the noise-absorbing device of the peak-absorbing device of the noise of the surface of the noise-absorbing device is produced under the peak, wherein the noise of the noise is set of the inner wall of the casing 81 is relatively.
The specific features described in the above embodiments may be combined in any suitable manner without contradiction. The various possible combinations of the utility model are not described in detail in order to avoid unnecessary repetition.
Claims (6)
1. A shock absorber, includes the carrier, the carrier is open-topped hollow structure, its characterized in that still includes:
the rectangular arrays are arranged in the hollow structure;
the circumferential arrays of the second damping components are hinged with the first damping components and the bearing piece;
a placement plate slidably mounted to the carrier and positioned on top of the first shock absorbing assembly; the first damping component is arranged to limit the vibration of the placing plate in the axial direction, and the second damping component is arranged to limit the vibration of the placing plate in the radial direction;
wherein the first shock absorbing assembly comprises:
the lower end of the first column body is provided with an opening; the top end of the first column body is connected with the placing plate;
the first support rod is hinged to the opening of the first column body;
the first reset spring is arranged in the first column body and is abutted to the top end of the first support rod.
2. A shock absorber according to claim 1, wherein said second shock absorber assembly comprises:
the first positioning seat is arranged on the side wall of the first column body;
the top end of the second supporting rod is rotatably arranged on the first positioning seat;
the top end of the second column body is hinged to the bottom end of the second supporting rod; the second column is of a hollow structure with an opening at the top;
the second positioning seat is arranged on the inner wall of the bearing piece; the bottom end of the second column body is rotationally connected with the second positioning seat;
and the second reset spring is arranged in the second column body and is abutted to the bottom end of the second supporting rod.
3. A low noise centrifugal fan, comprising:
the positioning frame is arranged on the placing plate;
the servo motor is arranged on the positioning frame;
the shell is arranged on the positioning frame;
the impeller is connected with the servo motor in a driving way through a rotating shaft and is rotationally connected with the shell;
a sound isolation assembly mounted within the housing;
a shock absorbing member provided below the positioning frame, wherein the shock absorbing member is a shock absorbing member according to any one of claims 1 to 2.
4. A low noise centrifugal fan according to claim 3, wherein said sound isolation assembly comprises:
a housing mounted inside the housing; the shell is of a hollow structure with hollowed-out inside;
at least two groups of sound insulation parts are oppositely arranged on the inner wall of the shell; the sound insulation parts are provided with gaps.
5. The low noise centrifugal fan according to claim 4, wherein said sound insulation portion comprises:
at least two groups of wave crest soundproof cotton, one surface of which is a plane and is attached to the inner wall of the shell, and the other surface of which is a concave-convex surface; the crest soundproof cotton concave-convex cotton is mutually attached and placed.
6. The low noise centrifugal fan according to claim 4, wherein a gap between the sound insulation portions is set to be vacuum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320912731.8U CN219840979U (en) | 2023-04-21 | 2023-04-21 | Damping piece and low-noise centrifugal fan thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320912731.8U CN219840979U (en) | 2023-04-21 | 2023-04-21 | Damping piece and low-noise centrifugal fan thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219840979U true CN219840979U (en) | 2023-10-17 |
Family
ID=88302321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320912731.8U Active CN219840979U (en) | 2023-04-21 | 2023-04-21 | Damping piece and low-noise centrifugal fan thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219840979U (en) |
-
2023
- 2023-04-21 CN CN202320912731.8U patent/CN219840979U/en active Active
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| GR01 | Patent grant |