CN104112571A - Noise reduction type amorphous alloy transformer - Google Patents
Noise reduction type amorphous alloy transformer Download PDFInfo
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- CN104112571A CN104112571A CN201410280121.6A CN201410280121A CN104112571A CN 104112571 A CN104112571 A CN 104112571A CN 201410280121 A CN201410280121 A CN 201410280121A CN 104112571 A CN104112571 A CN 104112571A
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- amorphous alloy
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- alloy iron
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Abstract
The invention discloses a noise reduction type amorphous alloy transformer which comprises an amorphous alloy iron core, wherein the two sides and the bottom of the amorphous alloy iron core are fixedly clamped respectively through lateral clamping parts and a lower clamping part, step joints of the amorphous alloy iron core are filled with magnetic conductive gelatine layers in a pouring mode, sound absorption fillers are arranged between the amorphous alloy iron core and the lower clamping part, space between the filling parts and the lower clamping part is smaller than or equal to 5mm, and conjugate segments of the amorphous alloy iron core are wrapped by sound absorption layers simultaneously. The noise reduction type amorphous alloy transformer is simple and practical in structure and convenient to operate. Noise of the transformer is reduced by 5dB-8dB under the same process conditions only by increasing a small amount of cost.
Description
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Technical field
The invention belongs to power transformer technical field, relate in particular to the amorphous alloy transformer with better noise reduction.
Background technology
Amorphous alloy strips is one of current classic transformer fe core material, have that magnetizing power is little, thickness as thin as a wafer (20～30 μ m), resistivity high, therefore amorphous alloy transformer has utmost point low no-load loss, is more and more widely used.But the magnetostriction degree of non-crystaline amorphous metal is higher by approximately 10% than silicon steel sheet, and after annealing extremely crisp (frangible), very responsive to mechanical stress, make the noise of amorphous alloy transformer generally higher than traditional silicon steel disc transformer, become the great difficult problem of its development of restriction.
Noise control be amorphous alloy transformer manufacture main bugbear, restricted to a certain extent it and promoted, be one of problem of paying attention to most of users for a long time.Although technological level increases in recent years, noise problem is still stable not.The opening lap-joint of amorphous alloy iron core is the larger source of iron core noise, the existence of lap-joint's air gap on the one hand, magnetic resistance causes greatly noise excessive, and the multi-pass operation of opening and closing in causes fragment to produce on the other hand, and the effect of iron core self gravitation, has the stress outwards scattering.
Summary of the invention
Goal of the invention: for the problem and shortage of above-mentioned existing existence, the invention provides a kind of noise reducing type amorphous alloy transformer, noise reduction is remarkable and operate scheme simple and easy, with low cost, and 5～8dB can decline amorphous alloy transformer noise.
Technical scheme: for achieving the above object, the present invention is by the following technical solutions: a kind of noise reducing type amorphous alloy transformer, comprise amorphous alloy iron core, these amorphous alloy iron core both sides and bottom are added and are fastened by side folder and lower clamping piece respectively, described amorphous alloy iron core ladder lap-joint records and is filled with magnetic conduction gelatinous layer, between amorphous alloy iron core and lower clamping piece, be provided with sound-absorbing filling member, the gap between this filling member and lower clamping piece is less than or equal to 5mm simultaneously; The conjugation section of described amorphous alloy iron core is enclosed with sound absorbing layer simultaneously.
As preferably, the material of described filling member adopts foaming acoustical cotton.
As preferably, described sound absorbing layer comprises the high damping deadening felt in undermost foaming acoustical cotton, intermediate layer and the glass fiber tape of the superiors.
As preferably, described foaming acoustical cotton heatproof requires more than 140 DEG C; The milk taste of described deadening felt requires more than 110 DEG C.
Beneficial effect: compared with prior art, the present invention has the following advantages: simple and practical, easy to operate, only needing increases a small amount of cost, realizes transformer noise decline 5～8dB under same process condition.
Brief description of the drawings
Fig. 1 is the structural representation of amorphous alloy transformer of the present invention;
Fig. 2 is the structural representation of filling member of the present invention;
Fig. 3 is the structural representation of filling member of the present invention.
Wherein, gap 7, filling member 8, the filling member 9 between amorphous alloy iron core 1, ladder lap-joint 2, foaming acoustical cotton 3, high damping deadening felt 4, side folder 5, lower clamping piece 6, filling member and lower clamping piece.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the present invention, should understand these embodiment is only not used in and limits the scope of the invention for the present invention is described, after having read the present invention, those skilled in the art all fall within the application's claims limited range to the amendment of the various equivalent form of values of the present invention.
As shown in Figure 1, a kind of noise reducing type amorphous alloy transformer, amorphous alloy iron core is wherein fixed by the side folder of both sides and the lower clamping piece of bottom.After suit high and low pressure mounting coil, non-crystaline amorphous metal open core is closed up, and in the magnetic conduction glue brushing of the two sides of ladder lap-joint 1, magnetic conduction glue infiltrates along lap gap, and is formed with certain flexible gelatinous layer on surface.The magnetic conduction ability of magnetic-conductive adhesive water extraction Gao Liao lap-joint air gap, is conducive to the decline of iron core no-load loss and noise.Fill with sound-absorbing filling member in the triangular-arc space of mandrel lower position, the thick foaming acoustical cotton stack of 10～20mm cutting for this filling member, and its shape and size are mated with triangular-arc space, the filling member of triangular-arc as shown in Figures 2 and 3.In the iron yoke section of iron core lap-joint, whole iron leg yoke is wrapped up to one deck with the thick foaming acoustical cotton 2 of 8-10mm, acoustical cotton, with one side glue, can glue easily note and wrap up.Acoustical cotton has good damping and the sound absorbing power of low-frequency noise.On the acoustical cotton of parcel, wrap up one deck with the thick high damping deadening felt of 0.8～2mm again.Deadening felt, with one side glue, can glue note parcel easily, finally tightens up with glass fiber tape half-lap one deck.It is large that deadening felt has internal damping, self is difficult for producing vibration, stoped the propagation of sound.Formed the good condition of attraction and sound insulation together with acoustical cotton.Sound-absorbing and sound insulation parcel are not carried out in all the other positions of iron core, guarantee iron core good heat radiating condition.Acoustical cotton and deadening felt should adopt softness, nonhygroscopic material.Foaming acoustical cotton requires heatproof more than 140 DEG C, and deadening felt requires heatproof more than 110 DEG C.The gross thickness of parcel acoustical cotton and deadening felt, should just contact or be less than 5mm with the gap 4 of folder with the folder after assembling.Because the Action of Gravity Field of iron core self, opening part has scattering to a certain degree, is out of shape greatlyr, and noise is larger.Be less than 5mm with the gap of folder, limited the deformation extent that opening scatters, realized together with triangular-arc filling member 6 with the soft of folder and having contacted with triangular-arc filling member 5 simultaneously.
Claims (4)
1. a noise reducing type amorphous alloy transformer, comprise amorphous alloy iron core, these amorphous alloy iron core both sides and bottom are added and are fastened by side folder and lower clamping piece respectively, it is characterized in that: described amorphous alloy iron core ladder lap-joint records and is filled with magnetic conduction gelatinous layer, between amorphous alloy iron core and lower clamping piece, be provided with sound-absorbing filling member, the gap between this filling member and lower clamping piece is less than or equal to 5mm simultaneously; The conjugation section of described amorphous alloy iron core is enclosed with sound absorbing layer simultaneously.
2. noise reducing type amorphous alloy transformer according to claim 1, is characterized in that: the material of described filling member adopts foaming acoustical cotton.
3. noise reducing type amorphous alloy transformer according to claim 2, is characterized in that: described sound absorbing layer comprises the high damping deadening felt in undermost foaming acoustical cotton, intermediate layer and the glass fiber tape of the superiors.
4. noise reducing type amorphous alloy transformer according to claim 2, is characterized in that: described foaming acoustical cotton heatproof requires more than 140 DEG C; The milk taste of described deadening felt requires more than 110 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410280121.6A CN104112571B (en) | 2014-06-20 | 2014-06-20 | A kind of noise reducing type amorphous alloy transformer |
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| CN201410280121.6A CN104112571B (en) | 2014-06-20 | 2014-06-20 | A kind of noise reducing type amorphous alloy transformer |
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| CN104112571A true CN104112571A (en) | 2014-10-22 |
| CN104112571B CN104112571B (en) | 2018-06-01 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106128715A (en) * | 2016-08-18 | 2016-11-16 | 吴江变压器有限公司 | A kind of core construction of amorphous distribution transformer |
| CN106611648A (en) * | 2015-10-26 | 2017-05-03 | 上海置信电气非晶有限公司 | Noise reduction type amorphous alloy dry transformer |
| CN109285670A (en) * | 2018-11-14 | 2019-01-29 | 上海置信电气非晶有限公司 | Reduce the method and coil windings suit component of transformer core no-load loss |
| CN112466630A (en) * | 2020-11-21 | 2021-03-09 | 沈阳工业大学 | Transformer core structure capable of reducing noise and manufacturing method thereof |
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| JP2000124044A (en) * | 1998-10-14 | 2000-04-28 | Hitachi Ltd | Low-noise transformer |
| CN201112061Y (en) * | 2007-09-11 | 2008-09-10 | 中电电气集团有限公司 | Amorphous alloy transformer |
| CN101447312A (en) * | 2008-05-30 | 2009-06-03 | 北京中机联供非晶科技股份有限公司 | Gap-butt amorphous core with noise reduction function of epoxy coating |
| CN201681704U (en) * | 2009-12-29 | 2010-12-22 | 苏州东源天利电器有限公司 | Transformer with amorphous alloy made iron core |
| CN202258701U (en) * | 2011-10-25 | 2012-05-30 | 上海南桥变压器有限责任公司 | Lateral clamping piece denoising structure for amorphous transformer |
| CN202405062U (en) * | 2012-01-07 | 2012-08-29 | 江西明正变电设备有限公司 | Novel amorphous alloy oil-immersed transformer with open structure |
| CN202771917U (en) * | 2012-07-24 | 2013-03-06 | 昆山禾旺电子有限公司 | Low noise three-pillar amorphous alloy dry-type transformer |
| CN203444922U (en) * | 2013-08-21 | 2014-02-19 | 江苏宏源电气有限责任公司 | Oil-immersed amorphous alloy transformer with denoising function |
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2014
- 2014-06-20 CN CN201410280121.6A patent/CN104112571B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000124044A (en) * | 1998-10-14 | 2000-04-28 | Hitachi Ltd | Low-noise transformer |
| CN201112061Y (en) * | 2007-09-11 | 2008-09-10 | 中电电气集团有限公司 | Amorphous alloy transformer |
| CN101447312A (en) * | 2008-05-30 | 2009-06-03 | 北京中机联供非晶科技股份有限公司 | Gap-butt amorphous core with noise reduction function of epoxy coating |
| CN201681704U (en) * | 2009-12-29 | 2010-12-22 | 苏州东源天利电器有限公司 | Transformer with amorphous alloy made iron core |
| CN202258701U (en) * | 2011-10-25 | 2012-05-30 | 上海南桥变压器有限责任公司 | Lateral clamping piece denoising structure for amorphous transformer |
| CN202405062U (en) * | 2012-01-07 | 2012-08-29 | 江西明正变电设备有限公司 | Novel amorphous alloy oil-immersed transformer with open structure |
| CN202771917U (en) * | 2012-07-24 | 2013-03-06 | 昆山禾旺电子有限公司 | Low noise three-pillar amorphous alloy dry-type transformer |
| CN203444922U (en) * | 2013-08-21 | 2014-02-19 | 江苏宏源电气有限责任公司 | Oil-immersed amorphous alloy transformer with denoising function |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106611648A (en) * | 2015-10-26 | 2017-05-03 | 上海置信电气非晶有限公司 | Noise reduction type amorphous alloy dry transformer |
| CN106128715A (en) * | 2016-08-18 | 2016-11-16 | 吴江变压器有限公司 | A kind of core construction of amorphous distribution transformer |
| CN109285670A (en) * | 2018-11-14 | 2019-01-29 | 上海置信电气非晶有限公司 | Reduce the method and coil windings suit component of transformer core no-load loss |
| CN112466630A (en) * | 2020-11-21 | 2021-03-09 | 沈阳工业大学 | Transformer core structure capable of reducing noise and manufacturing method thereof |
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| CN104112571B (en) | 2018-06-01 |
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