CN204991409U - Iron core structure is folded on low noise plane - Google Patents
Iron core structure is folded on low noise plane Download PDFInfo
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- CN204991409U CN204991409U CN201520699003.9U CN201520699003U CN204991409U CN 204991409 U CN204991409 U CN 204991409U CN 201520699003 U CN201520699003 U CN 201520699003U CN 204991409 U CN204991409 U CN 204991409U
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- iron core
- core
- low noise
- polyester composite
- resonance
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Abstract
The utility model discloses an iron core structure is folded on low noise plane, including the iron core, the iron core is formed by iron core silicon steel sheet closed assembly. The main of iron core is folded thick intermediate position and has been placed an at least polyester composite films, thereby polyester composite films changes the sectional area of iron core eliminates the inside resonance of iron core. The silica gel pad is placed on iron core pad foot, has improved the rigid joint of iron core with the pad foot, has reduce the resonance that the iron core outside gave, has reduced the transformer core noise. Polyester composite films places between the silicon steel sheet when the iron core closed assembly, changes the vibration area, cuts down the inside resonance of transformer core to the noise reduction, its thickness is only for about 1.1mm in addition, and it is very little that it always folds thick influence to the iron core, does not influence the size of coil, can practice thrift the cost.
Description
Technical field
The utility model belongs to transformer technology field, is specifically related to a kind of low noise plane and folds core structure.
Background technology
Transformer noise contaminated environment, affect the quality of life of people, therefore the noise level of transformer is transformer performance important parameter.Iron core noise is the maximum sound source of transformer noise, and research proves that transformer core vibration exists the possibility of resonance and causes noise to increase.Therefore preventing iron core from resonating is one of important measures reducing iron core noise.
Utility model content
In order to reduce iron core noise, the utility model proposes a kind of low noise plane and fold core structure, its structure is simple, easy to operate, cost is low, effectively reduces transformer core noise.
The utility model to achieve these goals, adopts following technical scheme:
A kind of low noise plane folds core structure, comprise iron core, iron core is formed by iron core silicon-steel sheet closed assembly, and the main of described iron core is folded thick centre position and is placed with at least one polyester composite sheet, and polyester composite sheet changes the sectional area of iron core thus the resonance of elimination core interior.
Preferably, described iron core is fixed on steel pedestal by folder other screw rod clamping lower yoke end face, add silicagel pad between the feet of iron core and steel pedestal, silicagel pad contacts with the rigidity of steel pedestal for avoiding iron core, eliminates the resonance that outside steel pedestal gives iron core.
Preferably, the thickness of described silicagel pad is 6mm, and its length and width area is greater than the contact area of iron core and feet.
Preferably, the single thickness of described polyester composite sheet is 1.1mm, and its size shape is consistent with institute lay down location silicon steel sheet size shape.
The Advantageous Effects adopting as above technical scheme to obtain is:
Silicagel pad is placed in iron core feet, and the rigidity improving iron core and feet combines, and reduces the resonance that iron core outside gives, reduces transformer core noise.
Polyester composite sheet is placed between silicon steel sheet when iron core overlapping, changes vibration area, cut down the resonance of transformer fe core inner, thus reduction noise, and its thickness is only about 1.1mm, and it is very little on iron core always folded thick impact, do not affect the size of coil, cost-saved.
Accompanying drawing explanation
Fig. 1 is that low noise plane folds core structure schematic diagram.
Fig. 2 is polyester composite sheet schematic diagram.
Embodiment
1 to 2 embodiment of the present utility model is described further by reference to the accompanying drawings:
A kind of low noise plane folds core structure, comprise iron core, iron core is formed by iron core silicon-steel sheet closed assembly, and the main of described iron core is folded thick centre position and is placed with at least one polyester composite sheet 1, and polyester composite sheet changes the sectional area of iron core thus the resonance of elimination core interior.
Described iron core is fixed on steel pedestal by folder other screw rod clamping lower yoke end face, silicagel pad 2 is added between the feet of iron core and steel pedestal, silicagel pad contacts with the rigidity of steel pedestal for avoiding iron core, eliminates the resonance that outside steel pedestal gives iron core.The thickness of silicagel pad is 6mm, and its length and width area is greater than the contact area of iron core and feet.
The single thickness of polyester composite sheet is 1.1mm, and its size shape is consistent with institute lay down location silicon steel sheet size shape.As iron core fold thick more greatly can sectional uniform place 2 or multiple.Polyester composite sheet is bonded by F level adhesive by multi-layered polyester film, has good mechanics, electricity and heat resistance.
As shown in Figure 2, silicon steel sheet is EI type silicon steel sheet, the shape of polyester composite sheet and size and EI type silicon steel sheet adaptive.
Polyester composite sheet is placed between silicon steel sheet when iron core overlapping, changes vibration area, cut down the resonance of transformer fe core inner, thus reduction noise, and its thickness is only about 1.1mm, and it is very little on iron core always folded thick impact, do not affect the size of coil, cost-saved.Experiment proves to adopt low noise plane of the present utility model to fold core structure, can reduce transformer noise 5-10dB.
Certainly; more than illustrate and be only preferred embodiment of the present utility model; the utility model is not limited to enumerate above-described embodiment; should be noted that; any those of ordinary skill in the art are under the guidance of this specification; made all equivalently to substitute, obvious variant, within the essential scope all dropping on this specification, protection of the present utility model ought to be subject to.
Claims (4)
1. a low noise plane folds core structure, comprise iron core, iron core is formed by iron core silicon-steel sheet closed assembly, it is characterized in that, the main of described iron core is folded thick centre position and is placed with at least one polyester composite sheet, and polyester composite sheet changes the sectional area of iron core thus the resonance of elimination core interior.
2. a kind of low noise plane according to claim 1 folds core structure, it is characterized in that, described iron core is fixed on steel pedestal by folder other screw rod clamping lower yoke end face, silicagel pad is added between the feet of iron core lower yoke end face and steel pedestal, silicagel pad contacts with the rigidity of steel pedestal for avoiding iron core, eliminates the resonance that outside steel pedestal gives iron core.
3. a kind of low noise plane according to claim 2 folds core structure, it is characterized in that, the thickness of described silicagel pad is 6mm, and its length and width area is greater than the contact area of iron core and feet.
4. a kind of low noise plane according to claim 1 folds core structure, it is characterized in that, the single thickness of described polyester composite sheet is 1.1mm, and its size shape is consistent with institute lay down location silicon steel sheet size shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520699003.9U CN204991409U (en) | 2015-09-10 | 2015-09-10 | Iron core structure is folded on low noise plane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520699003.9U CN204991409U (en) | 2015-09-10 | 2015-09-10 | Iron core structure is folded on low noise plane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204991409U true CN204991409U (en) | 2016-01-20 |
Family
ID=55125751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520699003.9U Expired - Fee Related CN204991409U (en) | 2015-09-10 | 2015-09-10 | Iron core structure is folded on low noise plane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204991409U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106298175A (en) * | 2016-08-23 | 2017-01-04 | 安徽广正电气科技有限公司 | Dry type appendiron core transformer |
-
2015
- 2015-09-10 CN CN201520699003.9U patent/CN204991409U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106298175A (en) * | 2016-08-23 | 2017-01-04 | 安徽广正电气科技有限公司 | Dry type appendiron core transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20180910 |