CN216342906U - Noise eliminator of cooling fan - Google Patents
Noise eliminator of cooling fan Download PDFInfo
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- CN216342906U CN216342906U CN202121237483.9U CN202121237483U CN216342906U CN 216342906 U CN216342906 U CN 216342906U CN 202121237483 U CN202121237483 U CN 202121237483U CN 216342906 U CN216342906 U CN 216342906U
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- cooling fan
- fixedly connected
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- base
- sound
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Abstract
The utility model discloses a noise eliminator of a cooling fan, which comprises a base, wherein a U-shaped buffer box is fixedly connected to the base, the bottom of the U-shaped buffer box is fixedly connected with a plurality of telescopic blocks, and springs for damping are sleeved on the outer surfaces of the telescopic blocks; the silicon rubber block is arranged inside the arc-shaped groove, the outer surface of the arc-shaped groove is fixedly connected with sliding blocks respectively, the two sliding blocks are connected with limiting rods in a sliding mode, and the bottoms of the limiting rods are fixedly connected to the base; the noise eliminator of the cooling fan provided by the utility model has the advantages that the plurality of telescopic blocks in the buffer box are matched with the springs on the telescopic blocks to be used together, so that the effect of cushioning and reducing noise of the motor in operation is achieved.
Description
Technical Field
The utility model relates to a silencing device, in particular to a silencing device of a cooling fan.
Background
The cooling fan is mainly used for cooling and capacity increasing of the dry type transformer and cooling of products such as electronic equipment, a power distribution cabinet, a high-low voltage switch cabinet and a high-low voltage switch cabinet, the motor of the cooling fan is a cooling system to remove heat and arrange the products into the atmosphere, and the cooling fan has low heat dissipation requirements.
The existing cooling fan is simple to operate when in use, and the cooling and refrigerating effects can be achieved only by one-key switch.
Through retrieval, chinese patent discloses a cooling fan (No. CN 211501030U), and this patent technology can reduce the swing of the motor and enhance the stability of the motor operation, but this type of cooling fan still generates noise when in use, and then may cause the noise that interferes with the surrounding area, and does not have a good noise elimination function. Accordingly, a noise eliminator for a cooling fan is provided by those skilled in the art to solve the above-mentioned problems in the background art.
Disclosure of Invention
The utility model aims to provide a silencing device of a cooling fan, which aims to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme:
a noise eliminator of a cooling fan comprises a base, wherein a U-shaped buffer box is fixedly connected to the base, a plurality of telescopic blocks are fixedly connected to the bottom of the U-shaped buffer box, and springs for shock absorption are sleeved on the outer surfaces of the telescopic blocks;
the silicon rubber block is arranged inside the arc-shaped groove, the outer surface of the arc-shaped groove is fixedly connected with sliding blocks respectively, the two sliding blocks are connected with limiting rods in a sliding mode, and the bottoms of the limiting rods are fixedly connected to the base;
the motor, the surface contact of motor is in the inside of silica gel piece, fixedly connected with turning block on the motor output shaft, fixedly connected with a plurality of is used for making the blade of wind on the turning block.
As a further scheme of the utility model: fixedly connected with connecting block on the base, fixedly connected with is used for making the cooling blower of cold wind on the connecting block, one side and the opposite side intercommunication of cooling blower, motor output shaft runs through cooling blower and extends to cooling blower's inside.
As a still further scheme of the utility model: and a plurality of silencing sheets for buffering air flow are fixedly connected to two sides of the inner wall of the cooling fan.
As a still further scheme of the utility model: a buffer cavity is formed among the plurality of spaced silencing sheets, and the shape of the buffer cavity is an irregular and unclosed parallelogram.
As a still further scheme of the utility model: one side of the cooling fan is fixedly connected with an air outlet which is trapezoidal.
As a still further scheme of the utility model: the bottom of the cooling fan is fixedly connected with sound-absorbing cotton for absorbing noise.
As a still further scheme of the utility model: and a separation net for preventing impurities from entering is arranged on one side of the cooling fan.
Compared with the prior art, the utility model has the beneficial effects that:
1. the effect of making an uproar is fallen to the motor that can be to being operated because vibrations to its by the extrusion bradyseism through the spring on the flexible piece of the inside flexible piece collocation of buffer box has been reached and has been used together, the indirect life that also improves the motor, and through slider sliding connection on the arc wall in the gag lever post play the spacing stable effect of motor on the arc wall, and the silica gel piece of arc wall can reduce the friction to the motor, the noise that the motor was sent out because the during operation vibrations occasionally with other structure contact friction has been reduced to a certain energy degree.
2. The cold air blown out from the screen by the blades rotates, when the air flow is sprayed out from the blades, the air flow expands once and consumes a part of energy at the first silencing sheet, after a plurality of times of expansion, the pressure, the speed and the density of the high-pressure air are reduced to be almost the same as the external air when the high-pressure air reaches the outlet of the silencer, and the air flow which is not consumed is absorbed by the sound-absorbing cotton, so that the noise generated by the cooling fan during operation is greatly weakened.
3. Through the net that separates that sets up can not only effectually protect the inside in the cooling blower, still to a certain extent the separation similar fallen leaves and such impurity of pebble get into, indirect assurance cooling blower's work efficiency.
Drawings
Fig. 1 is a schematic structural view of a muffler device of a cooling fan.
Fig. 2 is a schematic structural diagram of a buffer box in a muffler device of a cooling fan.
Fig. 3 is a schematic side view of a buffer box in a silencer of a cooling fan.
Fig. 4 is a schematic structural view of a silencer blade of a silencer assembly for a cooling fan.
Fig. 5 is a schematic view of an airflow flow structure of a silencer blade in a silencer of a cooling fan.
In the figure: 1. the base, 2, U-shaped buffering box, 3, flexible piece, 4, spring, 5, arc wall, 6, silica gel piece, 7, slider, 8, gag lever post, 9, motor, 10, turning block, 11, blade, 12, connecting block, 13, cooling blower, 14, noise damping piece, 15, cushion chamber, 16, air outlet, 17, inhale the sound cotton, 18, separate the net, 19, spout.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 5, in an embodiment of the present invention, a muffler device for a cooling fan includes; the shock absorber comprises a base 1, wherein a U-shaped buffer box 2 is fixedly connected to the base, a plurality of telescopic blocks 3 are fixedly connected to the bottom of the U-shaped buffer box 2, and springs 4 for shock absorption are sleeved on the outer surfaces of the telescopic blocks 3;
nine telescopic blocks 3 are arranged in the buffer box 2, and each telescopic block 3 is sleeved with a spring 4.
The device comprises an arc-shaped groove 5, wherein a silica gel block 6 is arranged inside the arc-shaped groove 5, the outer surface of the arc-shaped groove 5 is fixedly connected with sliding blocks 7 respectively, the two sliding blocks 7 are connected with limiting rods 8 in a sliding manner, and the bottoms of the limiting rods 8 are fixedly connected to a base 1;
the block of silica gel 6 can be replaced when its effectiveness is reduced.
The limiting rod 8 is arranged for fixing the motion track of the motor 9 during vibration.
The sliding block 7 is matched with the sliding groove 19.
The motor 9, the surface contact of motor 9 is in the inside of silica gel piece 6, fixedly connected with turning block 10 on the motor 9 output shaft, fixedly connected with a plurality of blade 11 that is used for making the wind on the turning block 10.
The turning block 10 is a cube, and four blades 11 are fixedly connected to the turning block 10.
Fixedly connected with connecting block 12 on the base 1, fixedly connected with is used for making the cooling blower 13 of cold wind on the connecting block 12, communicate between one side and the opposite side of cooling blower 13, motor 9 output shaft runs through cooling blower 13 and extends to the inside of cooling blower 13.
And a plurality of silencing sheets 14 for buffering air flow are fixedly connected to two sides of the inner wall of the cooling fan 13.
The shape of the noise-reduction sheet 14 is an irregular L-shape, and the distance between the noise-reduction sheet 14 and the buffer sheet is the same.
A buffer cavity 15 is formed among the plurality of spaced silencing sheets 14, and the shape of the buffer cavity 15 is an irregular and unclosed parallelogram.
The buffer cavity 15 can buffer the airflow so as to achieve the silencing effect.
And an air outlet 16 is fixedly connected to one side of the cooling fan 13 and is trapezoidal.
The bottom of the cooling fan 13 is fixedly connected with sound absorption cotton 17 for absorbing noise.
The sound absorption cotton 17 can be replaced according to the use condition, and the size can be determined according to the space of the cooling fan 13.
One side of the cooling fan 13 is provided with a screen 18 for preventing impurities from entering.
The working principle of the utility model is as follows:
when the cooling fan 13 is muffled, firstly, an external power supply is switched on, the motor 9 is switched on, then the motor 9 in operation starts to vibrate, the arc-shaped groove 5 vibrates up and down along with the vibration of the motor 9, meanwhile, the sliding block 7 outside the arc-shaped groove 5 can limit and stabilize the vibrating sliding groove 19, when the arc-shaped groove 5 vibrates up and down, the bottom of the arc-shaped groove 5 can contact the top of the telescopic block 3 and the spring 4 along with the vibration frequency and extrude the telescopic block 3 and the spring 4, and then the sliding groove is popped up by the external force of the spring 4, so that the effects of damping and muffling the motor 9 are achieved, meanwhile, the output shaft of the motor 9 drives the rotating block 10 and the blades 11 on the rotating block 10 to rotate, cold air of the blades 11 is blown out from the separation net 18 during rotation, and meanwhile, noise generated in the rotation process sequentially passes through the muffling sheets 14, when the air flow is ejected from the blades 11, the first silencing sheet 14 is encountered, the air flow expands once and consumes a part of energy, after several expansions, the high-pressure air reaches the outlet of the silencer, the pressure, speed and density of the high-pressure air are reduced to be almost the same as that of the outside air, and the air flow which is not consumed yet is absorbed by the sound-absorbing cotton 17, so that the noise is greatly reduced.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (7)
1. A noise eliminator of a cooling fan is characterized by comprising a silencer body;
the shock absorber comprises a base (1), wherein a U-shaped buffer box (2) is fixedly connected to the base, a plurality of telescopic blocks (3) are fixedly connected to the bottom of the U-shaped buffer box (2), and springs (4) for shock absorption are sleeved on the outer surfaces of the telescopic blocks (3);
the device comprises an arc-shaped groove (5), wherein a silica gel block (6) is arranged inside the arc-shaped groove (5), the outer surface of the arc-shaped groove (5) is fixedly connected with sliding blocks (7) respectively, two sliding blocks (7) are connected with limiting rods (8) in a sliding manner, one side of each limiting rod is provided with a sliding groove (19), and the bottom of each limiting rod (8) is fixedly connected to a base (1);
motor (9), the surface contact of motor (9) is in the inside of silica gel piece (6), fixedly connected with turning block (10) on motor (9) output shaft, a plurality of blade (11) that are used for making wind of fixedly connected with on turning block (10).
2. A silencing apparatus for a cooling fan according to claim 1, wherein the base (1) is fixedly connected with a connecting block (12), the connecting block (12) is fixedly connected with a cooling fan (13) for producing cold air, one side and the other side of the cooling fan (13) are communicated, and the output shaft of the motor (9) penetrates through the cooling fan (13) and extends to the inside of the cooling fan (13).
3. A silencer assembly according to claim 1, characterized in that a plurality of silencing plates (14) for buffering the air flow are fixedly connected to both sides of the inner wall of the cooling fan (13).
4. A sound-damping arrangement for a cooling fan according to claim 1, characterised in that a buffer chamber (15) is formed between said several spaced-apart sound-damping fins (14), said buffer chamber (15) being shaped as an irregular and non-closed parallelogram.
5. The muffler device of a cooling fan according to claim 1, wherein an air outlet (16) is fixedly connected to one side of the cooling fan (13), and the air outlet is trapezoidal.
6. A sound-deadening device for a cooling blower according to claim 1, wherein a sound-absorbing cotton (17) for absorbing noise is fixedly connected to a bottom of the cooling blower (13).
7. A sound-damping arrangement for a cooling fan according to claim 1, characterised in that one side of the cooling fan (13) is provided with a screen (18) for preventing the ingress of impurities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121237483.9U CN216342906U (en) | 2021-06-03 | 2021-06-03 | Noise eliminator of cooling fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121237483.9U CN216342906U (en) | 2021-06-03 | 2021-06-03 | Noise eliminator of cooling fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216342906U true CN216342906U (en) | 2022-04-19 |
Family
ID=81159405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121237483.9U Active CN216342906U (en) | 2021-06-03 | 2021-06-03 | Noise eliminator of cooling fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216342906U (en) |
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2021
- 2021-06-03 CN CN202121237483.9U patent/CN216342906U/en active Active
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