CN108389683A - A kind of sound-absorbing transformer case - Google Patents
A kind of sound-absorbing transformer case Download PDFInfo
- Publication number
- CN108389683A CN108389683A CN201711433125.3A CN201711433125A CN108389683A CN 108389683 A CN108389683 A CN 108389683A CN 201711433125 A CN201711433125 A CN 201711433125A CN 108389683 A CN108389683 A CN 108389683A
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- CN
- China
- Prior art keywords
- sound
- tube body
- sound insulation
- transformer
- hole
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/33—Arrangements for noise damping
Abstract
The present invention relates to a kind of sound-absorbing transformer cases, including transformer shell, the outside of transformer shell is enclosed with sound insulation chuck, sound insulation chamber is provided between sound insulation chuck and transformer shell, multiple bloops are installed on the outside of transformer shell, bloop is arranged in sound insulation chamber, and more support columns are installed between the bottom and sound insulation chuck of transformer shell.By installing acoustic isolator clip set, bloop and support column additional outside existing transformer shell, noise can be significantly reduced, the sound that the sound-absorbing transformer case generates is between 52 ~ 58 decibels, and for noise grade between the class Standard of Environmental Noise of 0 class of city ~ 1, de-noising effect is good.
Description
Technical field
The present invention relates to a kind of sound-absorbing transformer cases, belong to transformer technology field.
Background technology
Transformer is the device for changing alternating voltage using the principle of electromagnetic induction, and main member is primary coil, secondary
Grade coil, iron core（Magnetic core）And shell.Major function has：Voltage transformation, current transformation, impedance transformation, isolation, voltage stabilizing（Magnetic
Saturation transformer）Deng.It can be divided into, according to use,：Power transformer and special transformer（Electric furnace change, rectification change, industrial frequency experiment become
Depressor, pressure regulator, mining change, audio-frequency transformer, intermediate-frequency transformer, high frequency transformer, impact transformer, instrument transformer, electricity
Sub- transformer, reactor, mutual inductor etc.）.
At runtime, iron core noise caused by magnetic hysteresis is flexible in transformer can be transmitted to transformation to current transformer
On device shell, transformer case can be made to become a noise source.
Invention content
The present invention is in view of the deficienciess of the prior art, provide a kind of sound-absorbing transformer case, specific technical solution
It is as follows：
The outside of a kind of sound-absorbing transformer case, including transformer shell, the transformer shell is enclosed with sound insulation chuck, institute
It states and is provided with sound insulation chamber between sound insulation chuck and transformer shell, multiple bloops are installed on the outside of the transformer shell,
The bloop is arranged in sound insulation chamber, and more support columns are installed between the bottom and sound insulation chuck of the transformer shell.
As an improvement of the above technical solution, the bloop includes beryllium-bronze sheet body, the middle part of the beryllium-bronze sheet body
It is provided with the ellipsoid being recessed to beryllium-bronze sheet body side and lacks shape pit.
As an improvement of the above technical solution, the sound insulation chuck includes acoustical cotton layer, and the outside of the acoustical cotton layer is solid
Equipped with outer casing, be provided with multiple elliposoidal sound absorption cavities in the acoustical cotton layer, the medial surface of the acoustical cotton layer be provided with
One-to-one first taper hole of sound absorption cavity is provided with the second taper hole, first taper hole between first taper hole and sound absorption cavity
Small bore end be connected to the small bore end of the second taper hole, the big nose end of second taper hole is connected to sound absorption cavity, first taper hole
Big nose end be connected to sound insulation chamber.
As an improvement of the above technical solution, the support column includes upper tube body, cylindric babinet, lower tube body, it is described on
The upper end of tube body is fixedly connected with the bottom of transformer shell, and the babinet is arranged between upper tube body and lower tube body, the case
The upper end of body is provided with first through hole, and the lower end of the upper tube body is connected to first through hole, and the lower end of the babinet is provided with
Two through-holes, the upper end of the lower tube body are connected to the second through-hole, and the lower end of the lower tube body is fixedly connected with outer casing, institute
The side wall for stating babinet is provided with multiple third through-holes, and the inner cavity of the inner cavity of the upper tube body, the inner cavity of babinet and lower tube body is filled out
Filled with silencing cotton layer.
As an improvement of the above technical solution, the outer surface of the bloop is coated with chrome plating.
The present invention can be significantly reduced by installing acoustic isolator clip set, bloop and support column additional outside existing transformer shell
Noise, the sound that the sound-absorbing transformer case generates is between 52 ~ 58 decibels, and noise grade is in the class environment of 0 class of city ~ 1
Between noise criteria, de-noising effect is good.
Description of the drawings
Fig. 1 is sound-absorbing transformer outer case construction schematic diagram of the present invention；
Fig. 2 is bloop structural schematic diagram of the present invention；
Fig. 3 is the jacket structured schematic diagram of sound insulation of the present invention；
Fig. 4 is support column arrangement schematic diagram of the present invention；
Fig. 5 is support column arrangement schematic diagram of the present invention（Side view state）.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
As shown in Fig. 1 ~ 5, the sound-absorbing transformer case, including transformer shell 1, the transformer shell 1 it is outer
Portion is enclosed with sound insulation chuck 2, and sound insulation chamber 4, the transformer shell 1 are provided between the sound insulation chuck 2 and transformer shell 1
Outside be installed with multiple bloops 3, the bloop 3 is arranged in sound insulation chamber 4, and the bloop 3 includes beryllium-bronze sheet body
31, the middle part of the beryllium-bronze sheet body 31 is provided with the ellipsoid being recessed to 31 side of beryllium-bronze sheet body and lacks shape pit 32, described recessed
Hole 32 is made of punching press, therefore forms the crown protrusion of ellipsoid in the other side of beryllium-bronze sheet body 31 position corresponding with pit 32
33.The sound insulation chuck 2 includes acoustical cotton layer 21, and the outside of the acoustical cotton layer 21 is installed with outer casing 22, the acoustical cotton
Multiple elliposoidal sound absorption cavities 211 are provided in layer 21, the medial surface of the acoustical cotton layer 21 is provided with and 211 1 a pair of sound absorption cavity
The first taper hole 212 answered is provided with the second taper hole 213, first taper hole between first taper hole 212 and sound absorption cavity 211
212 small bore end is connected to the small bore end of the second taper hole 213, and the big nose end of second taper hole 213 is connected to sound absorption cavity 211,
The big nose end of first taper hole 212 is connected to sound insulation chamber 4.It is fixed between the bottom and sound insulation chuck 2 of the transformer shell 1
Have a more support columns 5, the support column 5 includes upper tube body 51, cylindric babinet 52, lower tube body 53, the upper tube body 51 it is upper
End is fixedly connected with the bottom of transformer shell 1, and the babinet 52 is arranged between upper tube body 51 and lower tube body 53, the babinet
52 upper end is provided with first through hole, and the lower end of the upper tube body 51 is connected to first through hole, the lower end setting of the babinet 52
There are the second through-hole, the upper end of the lower tube body 53 to be connected to the second through-hole, lower end and the outer casing 22 of the lower tube body 53
Be fixedly connected, the side wall of the babinet 52 is provided with multiple third through-holes 521, the inner cavity of the upper tube body 51, babinet 52 it is interior
The inner cavity of chamber and lower tube body 53 is filled with silencing cotton layer 54.
When the flexible caused noise of iron core magnetic hysteresis in transformer is transmitted on transformer shell 1, in the effect of bloop 3
Under, sound wave can be transferred to bloop 3, since bloop 3 is made of beryllium-bronze sheet body 31, beryllium-bronze has good strong
Degree, hardness, elastic limit and fatigue limit, elastic hysteresis is small, and has corrosion-resistance characteristics；When sound wave is transferred to beryllium-bronze sheet body 31
When, beryllium-bronze sheet body 31 easily vibrates, and is transferred in sound insulation chamber 4, and a part of acoustic energy, sound insulation chamber 4 can be consumed during being somebody's turn to do
In sound wave entered in sound absorption cavity 211 by the first taper hole 212, the second taper hole 213, the first taper hole 212 shape of itself makes
It obtains the sound wave in sound insulation chamber 4 and is easily injected into the first taper hole 212, and the structure of the second taper hole 213 and the first taper hole 212 composition is not only
So that the sound wave in the first taper hole 212 is easily injected into the second taper hole 213, and the sound wave in the second taper hole 213 is injected into elliposoidal
Sound absorption cavity 211 in, sound wave is projected by being not easy after multiple reflections from the second taper hole 213 in sound absorption cavity 211, and sound wave exists
During continuous reflection, acoustic energy is converted into thermal energy and sound wave is constantly decayed, and is finally absorbed by acoustical cotton layer 21；It adds
Acoustical cotton layer 21 is sound-absorbing porous material, when sound wave incident sound-absorbing porous material, due to the viscosity resistance of air, and air and hole
The vibration friction of wall, makes quite a few acoustic energy be converted to thermal energy and be absorbed, to have sound absorption function.Wherein, ellipsoid lacks
The presence of shape pit 32 and the crown protrusion of ellipsoid 33 so that sound wave is easily reflected to 32 both sides of pit at pit 32, promotes sound
Wave directive acoustical cotton layer 21, similarly sound wave at protrusion 33 easily to 33 both sides of protrusion reflect, promote sound wave directive acoustical cotton layer 21,
Pit 32 and protrusion 33 are easy to process, and a punching press can process pit 32 and protrusion 33 simultaneously, simple to operate.Pit
32 lack shape for ellipsoid, and relative to segment shape, ellipsoid lacks shape more it is easier that sound wave reflects at pit 32 to 32 both sides of pit；Protrusion
33 outer surface is that ellipsoid is crown, relative to spherical, ellipsoid it is crown more it is easier that sound wave at protrusion 33 to 33 both sides of protrusion
Reflection.Further, the outer surface of the bloop 3 is coated with chrome plating；Chrome plating has good heat resistance, hardness under room temperature
Good, wearability is good, and light reflective is strong；Therefore, under the action of chrome plating, the reflecting effect of bloop 3 is further promoted, this has
Decay in constantly reflecting conducive to sound wave, further increases noise elimination effect.
The presence of support column 5 so that can be supported and claim between the bottom and sound insulation chuck 2 of the transformer shell 1
Weight stress.Since the sound wave of a part can be transferred to outer casing 22 by support column 5, and outer casing 22 is carried out to acoustical cotton layer 21
Protection avoids acoustical cotton layer 21 impaired；Due to the presence of third through-hole 521 so that the inner cavity of the upper tube body 51, babinet 52
Inner cavity and the inner cavity of lower tube body 53 can be connected to sound insulation chamber 4, and 52 volume of babinet is larger, and babinet 52 coordinates with third through-hole 521,
So that 52 inside sound wave of babinet is easily from 521 directive sound insulation chamber 4 of third through-hole；Along under the action of silencing cotton layer 54,
Some sound waves on support column 5 can be eliminated so that the sound wave being transmitted on outer casing 22 by support column 5 is weakened, into one
Step reduces noise.
In the above-described embodiments, if the outside of transformer shell of the present invention 1 does not install sound insulation chuck 2, bloop 3
Then the noise on transformer shell 1 can reach 80 decibels or more it is a huge noise source with support column 5.And it installs
There is the sound-absorbing transformer case that sound insulation chuck 2, bloop 3 and support column 5 obtain, the sound generated is at 52 ~ 58 points
Between shellfish, noise grade is between the class Standard of Environmental Noise of 0 class of city ~ 1, that is to say, that sound insulation chuck 2, bloop 3 and support
The structure that column 5 forms can eliminate 22 ~ 28 decibels or more of noise, and de-noising effect is good.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (5)
1. a kind of sound-absorbing transformer case, including transformer shell（1）, it is characterised in that：The transformer shell（1）It is outer
Portion is enclosed with sound insulation chuck（2）, the sound insulation chuck（2）With transformer shell（1）Between be provided with sound insulation chamber（4）, the change
Depressor shell（1）Outside be installed with multiple bloops（3）, the bloop（3）It is arranged in sound insulation chamber（4）In, the transformation
Device shell（1）Bottom and sound insulation chuck（2）Between be installed with more support columns（5）.
2. a kind of sound-absorbing transformer case according to claim 1, it is characterised in that：The bloop（3）Including beryllium
Bronze sheet body（31）, the beryllium-bronze sheet body（31）Middle part be provided with to beryllium-bronze sheet body（31）The ellipsoid of side recess lacks shape
Pit（32）.
3. a kind of sound-absorbing transformer case according to claim 1, it is characterised in that：The sound insulation chuck（2）Including
Acoustical cotton layer（21）, the acoustical cotton layer（21）Outside be installed with outer casing（22）, the acoustical cotton layer（21）In be provided with
Multiple elliposoidal sound absorption cavities（211）, the acoustical cotton layer（21）Medial surface be provided with and sound absorption cavity（211）One-to-one
One taper hole（212）, first taper hole（212）With sound absorption cavity（211）Between be provided with the second taper hole（213）, first cone
Hole（212）Small bore end and the second taper hole（213）Small bore end connection, second taper hole（213）Big nose end and sound absorption cavity
（211）Connection, first taper hole（212）Big nose end and sound insulation chamber（4）Connection.
4. a kind of sound-absorbing transformer case according to claim 3, it is characterised in that：The support column（5）Including upper
Tube body（51）, cylindric babinet（52）, lower tube body（53）, the upper tube body（51）Upper end and transformer shell（1）Bottom
It is fixedly connected, the babinet（52）It is arranged in upper tube body（51）And lower tube body（53）Between, the babinet（52）Upper end setting
There are first through hole, the upper tube body（51）Lower end be connected to first through hole, the babinet（52）To be provided with second logical for lower end
Hole, the lower tube body（53）Upper end be connected to the second through-hole, the lower tube body（53）Lower end and outer casing（22）Gu
Fixed connection, the babinet（52）Side wall be provided with multiple third through-holes（521）, the upper tube body（51）Inner cavity, babinet
（52）Inner cavity and lower tube body（53）Inner cavity be filled with silencing cotton layer（54）.
5. a kind of sound-absorbing transformer case according to claim 1, it is characterised in that：The bloop（3）Appearance
Face is coated with chrome plating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711433125.3A CN108389683A (en) | 2017-12-26 | 2017-12-26 | A kind of sound-absorbing transformer case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711433125.3A CN108389683A (en) | 2017-12-26 | 2017-12-26 | A kind of sound-absorbing transformer case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108389683A true CN108389683A (en) | 2018-08-10 |
Family
ID=63076178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711433125.3A Pending CN108389683A (en) | 2017-12-26 | 2017-12-26 | A kind of sound-absorbing transformer case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108389683A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110957848A (en) * | 2019-12-28 | 2020-04-03 | 广东博智林机器人有限公司 | Motor housing, servo motor and robot |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203858967U (en) * | 2014-04-30 | 2014-10-01 | 浙江安德利变压器有限公司 | Low-noise dry type transformer |
| CN104795742A (en) * | 2015-05-07 | 2015-07-22 | 广东正诚电气科技有限公司 | Outdoor distribution box ventilation device |
| CN205789434U (en) * | 2016-06-07 | 2016-12-07 | 中变集团上海变压器有限公司 | A kind of amorphous alloy transformer core |
| CN106710797A (en) * | 2016-12-29 | 2017-05-24 | 安徽华正电气有限公司 | Novel high-frequency denoising apparatus for reactors and transformers |
| CN206774361U (en) * | 2017-06-09 | 2017-12-19 | 国网新疆电力公司木垒县供电公司 | A kind of denoising device of power transformer |
-
2017
- 2017-12-26 CN CN201711433125.3A patent/CN108389683A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203858967U (en) * | 2014-04-30 | 2014-10-01 | 浙江安德利变压器有限公司 | Low-noise dry type transformer |
| CN104795742A (en) * | 2015-05-07 | 2015-07-22 | 广东正诚电气科技有限公司 | Outdoor distribution box ventilation device |
| CN205789434U (en) * | 2016-06-07 | 2016-12-07 | 中变集团上海变压器有限公司 | A kind of amorphous alloy transformer core |
| CN106710797A (en) * | 2016-12-29 | 2017-05-24 | 安徽华正电气有限公司 | Novel high-frequency denoising apparatus for reactors and transformers |
| CN206774361U (en) * | 2017-06-09 | 2017-12-19 | 国网新疆电力公司木垒县供电公司 | A kind of denoising device of power transformer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110957848A (en) * | 2019-12-28 | 2020-04-03 | 广东博智林机器人有限公司 | Motor housing, servo motor and robot |
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20180810 |