CN215980163U - Novel noise reduction structure for cooling fan - Google Patents
Novel noise reduction structure for cooling fan Download PDFInfo
- Publication number
- CN215980163U CN215980163U CN202122410137.2U CN202122410137U CN215980163U CN 215980163 U CN215980163 U CN 215980163U CN 202122410137 U CN202122410137 U CN 202122410137U CN 215980163 U CN215980163 U CN 215980163U
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- China
- Prior art keywords
- fan
- radiator
- noise reduction
- rear cover
- front cover
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- 238000001816 cooling Methods 0.000 title claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 230000017525 heat dissipation Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 241001465382 Physalis alkekengi Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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Abstract
The utility model discloses a novel noise reduction structure for a cooling fan, which comprises a radiator, a first fan, a second fan, a fixed support, a front cover and a rear cover, wherein the first fan and the second fan are respectively positioned at two sides of the radiator, the upper end of the radiator is fixedly connected with the front cover, the lower end of the radiator extends into a cavity of the rear cover, the front cover is hermetically connected with the rear cover, the front cover is connected with the rear cover, the first fan and the second fan are respectively and fixedly arranged at two sides of the fixed support in an inclined manner, so that air sequentially passes through an air channel between the first fan and the second fan to form a non-parallel structure, and the fixed support is fixedly arranged in the cavity of the rear cover. The utility model has simple structure, firmness and durability, can effectively reduce noise, particularly avoid the generation of howling, effectively reduce the noise and improve the customer experience.
Description
Technical Field
The utility model relates to the technical field of wind noise reduction, in particular to a novel noise reduction structure for a cooling fan.
Background
The existing high-power LED lamp usually has a heat dissipation fan or other heat dissipation devices, and these heat dissipation risks are mainly actively dissipated by blowing heat dissipation fins through a fan, thereby achieving the heat dissipation effect. Structurally, the heat radiating fins and the fan are sealed and protected by the shell, the shell is provided with the ventilation opening, and external cold air enters from the ventilation opening, so that heat on the heat radiating fins is discharged, cold and hot air exchange is achieved, and finally the heat is discharged. However, the existing air inlet and air outlet are installed in parallel, and the air quantity can pass through a cavity from the air inlet to the air outlet, so that wind noise is formed, the wind noise is similar to the squealing sound of a whistle, the user experience is poor, and the noise of the wind noise needs to be reduced.
SUMMERY OF THE UTILITY MODEL
In view of the defects in the prior art, the present invention provides a novel noise reduction structure for a heat dissipation fan, which can solve the problem of wind noise reduction.
The technical scheme for realizing the purpose of the utility model is as follows: the utility model provides a novel structure of making an uproar falls for radiator fan, including the radiator, first fan, the second fan, the fixed bolster, protecgulum and hou gai, first fan and second fan are located the both sides of radiator respectively, the upper end and the protecgulum fixed connection of radiator, the lower extreme of radiator stretches into in the cavity of back lid, protecgulum and hou gai sealing connection, the protecgulum is connected with the back lid, first fan and second fan slope fixed mounting respectively in the both sides of fixed bolster, so that wind is the non-parallel structure through the wind passageway between first fan and the second fan in proper order, fixed bolster fixed mounting is in the cavity of back lid.
Further, the front cover and the rear cover are connected in a sealing mode through threads.
Furthermore, one end of the first fan and one end of the second fan are fixedly arranged on the fixing support, and the other ends of the first fan and the second fan are arranged towards the front cover in an inclined mode.
Furthermore, the first fan and the second fan are symmetrically arranged relative to the vertical central axis of the fixed support, and an included angle is formed between the first fan and the second fan.
Further, the included angle is 15-30 degrees.
Further, the included angle is 22 °.
Further, the fixing bracket is fixedly installed at the central position of the bottom wall in the rear cover, and the vertical central axes of the fixing bracket, the rear cover, the radiator and the front cover are overlapped.
The utility model has the beneficial effects that: the utility model has simple structure, firmness and durability, can effectively reduce noise, particularly avoid the generation of howling, effectively reduce the noise and improve the customer experience.
Drawings
FIG. 1 is an exploded schematic view of the present invention
FIG. 2 is a schematic cross-sectional view of the present invention;
in the figure, 1-a first fan, 2-a rear cover, 3-a fixed support, 4-a second fan, 5-a radiator and 6-a front cover.
Detailed Description
The utility model is further described below with reference to the drawings and the specific embodiments.
As shown in fig. 1 and 2, a novel noise reduction structure for radiator fan, including radiator 5, first fan 1, second fan 4, fixed bolster 3, protecgulum 6 and hou gai 2, first fan 1 and second fan 4 are located the both sides of radiator 5 respectively, the upper end and the protecgulum 6 fixed connection of radiator 5, also be with radiator 5 fixed mounting on protecgulum 6, protecgulum 6 can be the protecgulum 6 of LED lamps and lanterns, the lower extreme of radiator 5 stretches into in the cavity of hou gai 2, protecgulum 6 and hou gai 2 sealing connection, protecgulum 6 and hou gai 2 pass through screw thread sealing connection. First fan 1 and second fan 4 slope fixed mounting respectively in the both sides of fixed bolster 3, for example, to the slope installation of protecgulum 6 direction, because first fan 1 and second fan 4 all slope installation, therefore wind is the non-parallel structure through the wind passageway between first fan 1 and the second fan 4 in proper order, so can eliminate the sound of howling that produces because the wind flows, reach noise reduction effect. The fixed bracket 3 is fixedly installed in the cavity of the rear cover 2, for example, on the inner bottom wall of the rear cover 2, so that the fixed bracket 3, the first fan 1 and the second fan 4 on the fixed bracket 3, and the radiator 5 are all located in the rear cover 2. The heat sink 5 is a heat dissipation fan or other device capable of actively dissipating heat.
In an alternative embodiment, the first fan 1 and the second fan 4 have one end fixedly mounted on the fixing bracket 3 and the other end obliquely disposed toward the front cover 6.
Wherein the first fan 1 and the second fan 4 are symmetrically arranged with respect to a vertical central axis of the stationary support 3 (i.e. the dotted line in fig. 1), and the angle formed between the first fan 1 and the second fan 4 is between 15 ° and 30 °, preferably 22 °. When the included angle that constitutes between first fan 1 and the second fan 4 is 22, because first fan 1 and the symmetrical setting of second fan 4, consequently, the first fan 1 and the second fan 4 and the vertical direction's included angle is 11.
In an alternative embodiment, the fixing bracket 3 is fixedly installed at a central position of the bottom wall in the rear cover 2 so that vertical central axes of the fixing bracket 3, the rear cover 2, the heat sink 5, and the front cover 6 coincide.
The working principle is as follows: first fan 1 inhales cold wind through the air intake on the back lid 2 fast, and cold wind discharges from the air outlet on the back lid 2 opposite side again behind radiator 5 to the hot-air that will carry discharges fast, realizes quick radiating effect. One side of the first fan 1 is cold air, one side of the second fan 4 is hot air, that is, the position a1 in fig. 2 is cold air, the position a2 is hot air, and the arrows in fig. 2 indicate the air flow direction. The first fan 1 sucks external air, so that air is supplied to the radiator 5, and the air does not parallelly pass through the cavity between the first fan 1 and the second fan 4 but passes through the cavity at a certain angle, so that howling caused by a parallel structure can be eliminated, and the test is effectively reduced. Through field testing, applicants have found that under the same conditions, this example reduces noise by an average of 8 db.
The embodiments disclosed in this description are only an exemplification of the single-sided characteristics of the utility model, and the scope of protection of the utility model is not limited to these embodiments, and any other functionally equivalent embodiments fall within the scope of protection of the utility model. Various other changes and modifications to the above-described embodiments and concepts will become apparent to those skilled in the art from the above description, and all such changes and modifications are intended to be included within the scope of the present invention as defined in the appended claims.
Claims (7)
1. The utility model provides a novel structure of making an uproar falls for radiator fan, a serial communication port, including the radiator, first fan, the second fan, the fixed bolster, protecgulum and hou gai, first fan and second fan are located the both sides of radiator respectively, the upper end and the protecgulum fixed connection of radiator, the lower extreme of radiator stretches into in the cavity of back lid, protecgulum and hou gai sealing connection, first fan and second fan slope fixed mounting respectively in the both sides of fixed bolster, so that wind is the non-parallel structure through the wind passageway between first fan and the second fan in proper order, fixed bolster fixed mounting is in the cavity of back lid.
2. The noise reduction structure for a radiator fan according to claim 1, wherein the front cover and the rear cover are hermetically connected by a screw thread.
3. The noise reduction structure for a radiator fan according to claim 1, wherein one end of the first fan and the second fan is fixedly mounted on the fixing bracket, and the other end is disposed to be inclined toward the front cover.
4. The novel noise reduction structure for the cooling fan according to claim 1, wherein the first fan and the second fan are symmetrically arranged with respect to a vertical central axis of the fixing bracket, and an included angle is formed between the first fan and the second fan.
5. The novel noise reducing structure for a radiator fan according to claim 4, wherein the included angle is 15 ° to 30 °.
6. The novel noise reducing structure for a radiator fan according to claim 5, wherein the included angle is 22 °.
7. The novel noise reduction structure for a radiator fan according to claim 1, wherein the fixing bracket is fixedly installed at a central position of the bottom wall in the rear cover, and vertical central axes of the fixing bracket, the rear cover, the radiator and the front cover coincide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122410137.2U CN215980163U (en) | 2021-09-30 | 2021-09-30 | Novel noise reduction structure for cooling fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122410137.2U CN215980163U (en) | 2021-09-30 | 2021-09-30 | Novel noise reduction structure for cooling fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215980163U true CN215980163U (en) | 2022-03-08 |
Family
ID=80509052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122410137.2U Active CN215980163U (en) | 2021-09-30 | 2021-09-30 | Novel noise reduction structure for cooling fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215980163U (en) |
-
2021
- 2021-09-30 CN CN202122410137.2U patent/CN215980163U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 56 Nanli East Road, Shiqi Town, Panyu District, Guangzhou City, Guangdong Province, 510000 Patentee after: Guangdong Baolun Electronics Co.,Ltd. Address before: No.19 Chuangyuan Road, Zhongcun street, Panyu District, Guangzhou, Guangdong 510000 Patentee before: GUANGZHOU ITC ELECTRONIC TECHNOLOGY Co.,Ltd. |