CN201541397U - Electrical appliance casing noise reduction device - Google Patents
Electrical appliance casing noise reduction device Download PDFInfo
- Publication number
- CN201541397U CN201541397U CN2009200082453U CN200920008245U CN201541397U CN 201541397 U CN201541397 U CN 201541397U CN 2009200082453 U CN2009200082453 U CN 2009200082453U CN 200920008245 U CN200920008245 U CN 200920008245U CN 201541397 U CN201541397 U CN 201541397U
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- sound
- electrical appliance
- absorbing material
- noise
- electric
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- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
Disclosed is an electrical appliance casing noise reduction device which comprises an electrical appliance element and an electrical appliance outer casing body. The device is characterized in that sound-absorbing material is adhered on an inner wall of the electrical appliance outer casing body which is in opposite direction to a noise vibration wave generated by the electrical appliance element, and the sound-absorbing material has thickness no larger than 3.0mm, outline in optional shapes and a surface in a convex-concave shape. The sound-absorbing material with different shapes and unequal area sizes can be adhered onto five to six surfaces on the inner wall of the box-type electrical appliance casing body and arranged in mathematical and geometrical manners. The device is capable of evidently reducing noise of conventional box-type electrical appliances, computer mainframes and display screens and is favorable for physical and psychological health of operators.
Description
Technical field
The utility model relates to a kind of noise-decreasing device of Electric Apparatus Chassis noise-decreasing device, particularly box electric appliance casing, and existing box electrical equipment, host computer and display screen noise are reduced.
Background technology
Various fan heat sinking functions require to improve in the electrical equipment at present, thereby cause noise more and more serious, and inhibition electrical equipment noise has become to need badly one of deals with problems.In the box electrical equipment, the sound deadening shock absorption device of An Zhuaning as required often only at single target focus (5), causes on the cost ascending effect limited, and has increased the difficulty of equipment volume and maintenance.More representational method has following several:
CN200580046402.4 discloses a kind of housing unit of computer, housing unit also comprises the noise abatement assembly, the configuration of the tortuous passageway of noise abatement assembly makes the sound that sends and enter tortuous passageway from fan dissipate therein, so that reduce the sound levels that passage sends.
CN200680008337.0 discloses a kind of noise cancellation module, the audio signal that is generated by noise generation source by noise cancellation module (102) perception and make processor (108) in response to this and the generted noise offseting signal.
The noise reduction rectifier that also has invention to use in computer system adopts methods such as improving fan power.Cause Box of electric machine vibration and give off noise and promptly belong to the structure sound, the method that solves the structure sound mainly is: add that different vibration materials do electric elements and reduce the structure sound in the mode of damping vibration attenuation.
Should reduce temperature in the Box of electric machine, reduce noise again, its solution is simple, low cost is to enjoy popular confidence.
The utility model content
The electrical equipment noise mainly be sound directly by the hot blast of fan fan-out, belong to the air sound through what louvre blazed abroad, for the solution of air sound in general all be with block, the propagation of the airtight isolated sound of mode.
The utility model purpose is to adopt the suction mode of making an uproar that box electrical equipment, host computer and display screen noise are reduced.
A kind of Electric Apparatus Chassis noise-decreasing device, contain electric elements, electrical appliance shell, the electric elements assembly is connected on the casing for electric appliances pedestal by bolt, it is characterized in that being in opposite directions the electrical appliance shell inwall and being pasted with sound-absorbing material sending the noise shock wave with electric elements, its thickness is not more than 3.0mm, sound-absorbing material is a double-decker, is glue layer with the internal layer that the electrical appliance shell inwall pastes mutually, and outer or title superficial layer is rock wool substrate, foam sponge or fibre fluff; The surface of sound-absorbing material superficial layer is the convex-concave shape.
The utility model can require and noise direction of earthquake source, intensity, frequency are determined shape, the size of sound-absorbing material and the particular location that distributes according to casing heat radiation, should consider that its de-noising effect takes into account radiating effect, selection mathematics and geometric ways arrangement again.
The sound-absorbing material that adheres on the electrical appliance shell inwall in the utility model is preferably more than 2, and the shape of sound-absorbing material and/or not of uniform size, the inventor finds to adopt same specification, uniform sound-absorbing material effect can not show a candle to and uses shape, sound-absorbing material in different size, because the different noise direction of earthquake source in position, intensity, frequency are understood different, select not only economy but also can reach best de-noising effect of given shape and/or size like this, also can guarantee its radiating effect to greatest extent simultaneously.
Sound-absorbing material can be made up of rock wool substrate, foam sponge and glue layer, also can plant the fibre fluff layer that pastes or be printed on the glue layer with electrostatic methods forms, the utility model is not particularly limited the composition of sound-absorbing material, organic and inorganic material, natural, synthetic environment-friendly type goods all can, preferably use fire proofing, meet the interior element of box electrical equipment safety and environmental protection requirement.
The sound-absorbing material surface that the utility model is selected has the convex-concave shape, and it can be a ripple, and band fold and/or convex-concave trace owing to require the sound-absorbing material surface rough and uneven in surface, have further weakened the intensity of sound wave, have reduced noise.
Sound-absorbing material preferably possesses gluing function in the utility model, can easily sound-absorbing material be pasted on five to six surfaces of electrical appliance shell inwall and electric elements send the noise shock wave and are in opposite directions optional position.
Preferred forms of the present utility model is: box electrical appliance shell is a double-decker, and sound-absorbing material sticks on any inner wall surface in the interlayer.The suitable especially double-decker that adopts of door-plate part in the electrical appliance shell, damping noise control effect is splendid.
Electric Apparatus Chassis noise-decreasing device of the present utility model can also be on electric elements assembly connecting circuit housing pedestal, and the elastomer crash roll is equipped with at the bolt place.
The utility model Electric Apparatus Chassis noise-decreasing device in the time of can making sound wave enter into deadener and the countless hole wall frictions that is interconnected, makes acoustic energy be converted into heat energy and digests, thereby play the noise elimination effect.The structure of sound-absorbing material makes the contact area of it and sound wave increase, and has better sound-absorbing effect.This device can make existing box electrical equipment, host computer and display screen noise reduce more than 10%.
Description of drawings
Accompanying drawing 1 is the end view of embodiment 1 for the utility model
Accompanying drawing 2 is the end view of the utility model embodiment 2
Accompanying drawing 3 is for using the end view with inwall sticking sound-absorbing material of double-deck electric appliance casing interlayer body of the present utility model
Accompanying drawing 4 is the end view of the utility model embodiment 1 cabinet wall sticking sound-absorbing material in the face of vibration source
Among the figure: 1---the individual layer electrical appliance shell; 2---sound-absorbing material; 3---double-deck electrical appliance shell; 4---vibration source.
Embodiment
Example 1: adopt accompanying drawing 1, structure shown in Figure 4 and sound-absorbing material, the sound-absorbing material internal layer is an adhesive, skin is the foam sponge layer, at host computer casing casing inner wall, direction according to the noise source generation, bonding area differs in size, is the sound-absorbing material of mathematics and geometric ways arrangement respectively, can make existing host computer noise reduce more than 10%.
Example 2: adopt accompanying drawing 2, structure shown in Figure 3 and sound-absorbing material, the sound-absorbing material internal layer is an adhesive, skin is the foam sponge layer, on the surface of the interlayer inwall of distribution box double Shell, direction according to the noise source generation, bonding area differs in size, is the sound-absorbing material of mathematics and geometric ways arrangement respectively, can make existing distribution box noise reduce more than 10%.
Claims (4)
1. Electric Apparatus Chassis noise-decreasing device, contain electric elements, electrical appliance shell, the electric elements assembly is connected on the casing for electric appliances pedestal by bolt, it is characterized in that being in opposite directions the electrical appliance shell inwall and being pasted with sound-absorbing material sending the noise shock wave with electric elements, its thickness is not more than 3.0mm, sound-absorbing material is a double-decker, is glue layer with the internal layer that the electrical appliance shell inwall pastes mutually, and outer or title superficial layer is rock wool substrate, foam sponge or fibre fluff; The surface of sound-absorbing material superficial layer is the convex-concave shape.
2. Electric Apparatus Chassis noise-decreasing device according to claim 1 is characterized in that being pasted with on the electrical appliance shell inwall sound-absorbing material more than 2, and the shape of sound-absorbing material and/or not of uniform size.
3. Electric Apparatus Chassis noise-decreasing device according to claim 1 is characterized in that electrical appliance shell is a double-decker, and sound-absorbing material sticks on the inner wall surface of interlayer.
4. Electric Apparatus Chassis noise-decreasing device according to claim 1 is characterized in that the elastomer crash roll is equipped with at the bolt place on the pedestal of electric elements assembly connecting circuit shell body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200082453U CN201541397U (en) | 2009-04-01 | 2009-04-01 | Electrical appliance casing noise reduction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200082453U CN201541397U (en) | 2009-04-01 | 2009-04-01 | Electrical appliance casing noise reduction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201541397U true CN201541397U (en) | 2010-08-04 |
Family
ID=42592844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200082453U Expired - Fee Related CN201541397U (en) | 2009-04-01 | 2009-04-01 | Electrical appliance casing noise reduction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201541397U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102253689A (en) * | 2011-07-26 | 2011-11-23 | 浪潮电子信息产业股份有限公司 | Noise reduction method for high power server system |
| CN103917073A (en) * | 2014-03-10 | 2014-07-09 | 山东三维石化工程股份有限公司 | Dustproof refrigeration machine case |
| CN104751837A (en) * | 2015-03-05 | 2015-07-01 | 成都佳美嘉科技有限公司 | Noise elimination device |
| CN104918442A (en) * | 2015-06-25 | 2015-09-16 | 苏州市龙源电力科技股份有限公司 | Environmentally-friendly electric control cabinet |
| CN107678514A (en) * | 2017-10-12 | 2018-02-09 | 长沙准光里电子科技有限公司 | Shockproof computer mainframe box |
-
2009
- 2009-04-01 CN CN2009200082453U patent/CN201541397U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102253689A (en) * | 2011-07-26 | 2011-11-23 | 浪潮电子信息产业股份有限公司 | Noise reduction method for high power server system |
| CN103917073A (en) * | 2014-03-10 | 2014-07-09 | 山东三维石化工程股份有限公司 | Dustproof refrigeration machine case |
| CN103917073B (en) * | 2014-03-10 | 2016-08-17 | 山东三维石化工程股份有限公司 | Dust-proof refrigerating machine case |
| CN104751837A (en) * | 2015-03-05 | 2015-07-01 | 成都佳美嘉科技有限公司 | Noise elimination device |
| CN104918442A (en) * | 2015-06-25 | 2015-09-16 | 苏州市龙源电力科技股份有限公司 | Environmentally-friendly electric control cabinet |
| CN107678514A (en) * | 2017-10-12 | 2018-02-09 | 长沙准光里电子科技有限公司 | Shockproof computer mainframe box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100804 Termination date: 20120401 |