CN2796044Y - Shock-proof structure of nano crystal soft magnetic core - Google Patents
Shock-proof structure of nano crystal soft magnetic core Download PDFInfo
- Publication number
- CN2796044Y CN2796044Y CN 200520058193 CN200520058193U CN2796044Y CN 2796044 Y CN2796044 Y CN 2796044Y CN 200520058193 CN200520058193 CN 200520058193 CN 200520058193 U CN200520058193 U CN 200520058193U CN 2796044 Y CN2796044 Y CN 2796044Y
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- iron core
- core body
- soft magnet
- magnet core
- proof structure
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Abstract
The utility model relates to a shock-proof structure of a nano crystal soft magnetic core, which comprises a soft magnet core body made of a non-crystal strip coil. The utility model is characterized in that the surfaces of the soft magnet core body are provided with cured layers with good plasticity. Since the utility model adopts the cured layers with good plasticity arranged on the surfaces of the outer ring and the inner ring of the soft magnet core body, the utility model overcomes the defects that in the processes of transportation, manufacture, assembly and operation, because of external stress action, the inner surface and the outer surface of the iron core are easy to crush, which causes the decrease of magnetic property and thus the magnetic stability of the iron core can be ensured. In addition, the cured layers arranged on the end surfaces of both sides of the iron core and immersed into the places between strips can ensure the favorable magnetic stability of the iron core in a high-frequency operation and long-time shock device all the time. Therefore, the reliability of the device can be ensured.
Description
Technical field
The utility model relates to a kind of electromagnetic core, comprises Nb at least in particularly a kind of composition, CU, Fe, Si, the vibration-proof structure of the nano-crystal soft magnetic iron core of five kinds of elements of B.
Background technology
(composition is NbaCubFecSidBe to nano-crystal soft magnetic iron core; the scope of percentage by weight is 3＜a＜7; 1＜b＜2; 78＜c＜85; 5＜d＜13,1＜e＜3), thereby has the excellent comprehensive soft magnet performance with its high magnetic permeability, high saturated magnetic strength and low loss; on market, replace the traditional soft ferromagnetic material, be widely used in fields such as electromagnetic residual current protective circuit breaker, common mode inductance, current transformer, high frequency transformer (IGBT welding machine), Switching Power Supply.But because the material self character, promptly alloy strip steel rolled stock is after heat treatment answered force vibration easily to make the iron core fragmentation, thereby the iron core magnetic property is seriously descended or shows the unsteadiness of performance and influence its extensive use on market.
To electromagnetic residual current protective circuit breaker iron core, both required higher and stable magnetic permeability and magnetic property, it is little to require its magnetic property to change again.For example to a certain size iron core; former limit input 30mA electric current; the secondary induced voltage is 5mV; through the influence of any external condition, the variation of its secondary voltage must not surpass ± 25% under the iron core condition of work, if but iron core without any processing; in processes such as production, transportation, will make the iron core Internal and external cycle local broken; thereby cause the secondary output voltage seriously to reduce, at this moment the residual current protecting circuit breaker just may move in the specified action electric current, badly influences the safety of life and property.
In addition, for iron cores such as high-frequency switch power transformer, IGBT inverter type welder main transformers, demanding magnetic permeability, low loss and high saturated magnetic strength.Because iron core is worked under high frequency (20KHz), after iron core work a period of time without any processing, the local generation of iron core is broken, make magnetic permeability reduce, saturated magnetic strength descends, and is to be used behind certain hour, because decreased performance is serious, iron core can not bear present job requirement, will produce magnetic saturation, thereby burns inverter.In fact nanocrystalline iron core began to be used for the IGBT inverter type welder since 1998, just begun to show than ferrite superior many magnetic characteristics, but do not avoid occurring quality problems and structural improvement owing to adopt accordingly at its material behavior, so after work a period of time, nearly 20% equipment is arranged because inverter is burnt in the reduction of iron core performance.
Summary of the invention
Technical problem to be solved in the utility model is, provides that a kind of nano-crystal soft magnetic iron core can be because of extraneous stress factors cause damage in production, transportation, use, thereby guarantees that iron core has stable magnetic property vibration-proof structure.
The technical solution of the utility model is: a kind of vibration-proof structure of nano-crystal soft magnetic iron core, be characterized in comprising that one rolls the soft magnet core body that forms by amorphous band, and described soft magnet core body surface is provided with the cured layer that one deck has good plasticity.
The further technical scheme of the utility model is:
Above-mentioned cured layer is the mixture of epoxy resin and curing agent, and it is arranged at the outer ring and the inner peripheral surface of soft magnet core body respectively.
Above-mentioned cured layer is an adhesive, and it is arranged at soft magnet core body both sides end face respectively and is and evenly is immersed in the formed slit of strip interlayer.
The utility model is owing to adopted in the outer ring of soft magnet core body and the cured layer of the good plasticity of one deck tool that inner peripheral surface is provided with, overcome iron core and in transportation, production assembling and use, produced the deficiency that the broken magnetic property that causes reduces, guaranteed the stability of iron core magnetic property because of the external carbuncle effect makes the iron core surfaces externally and internally.And be arranged at iron core both sides end face and be immersed into cured layer between the band thin layer, can in being applied to high-frequency work and long vibratory equipment, have good magnetic performance stability all the time.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the structural representation of another execution mode of the utility model.
Embodiment
The utility model as shown in Figure 1 and Figure 2, the vibration-proof structure of a kind of nano-crystal soft magnetic iron core described in the utility model, comprise that one rolls the soft magnet core body 1 that forms by amorphous band, be characterized in that described soft magnet core body 1 surface is provided with the cured layer 2 that one deck has good plasticity.
Above-mentioned cured layer 2 is the mixture of epoxy resin and curing agent, and it is arranged at the outer ring 1a and the inner ring 1b surface of soft magnet core body 1 respectively.The above-mentioned cured layer 2 on soft magnet core body 1 outer ring 1a and inner ring 1b surface that is arranged at is for all covering or partly be covered in the outer ring 1a and the inner ring 1b surface of soft magnet core body 1.For guaranteeing that device is in product, particularly be installed in the reliability and the durability of work in the frequently higher equipment that shakes, also can set up one deck cured layer in above-mentioned soft magnet core body 1 both ends of the surface, above-mentioned cured layer is an adhesive, and it is arranged at soft magnet core body 1 both sides end face 1c respectively and presents and evenly is immersed in the formed slit of strip interlayer.
Claims (4)
1, a kind of vibration-proof structure of nano-crystal soft magnetic iron core comprises that one rolls the soft magnet core body (1) that forms by amorphous band, it is characterized in that described soft magnet core body (1) surface is provided with the cured layer (2) that one deck has good plasticity.
2, vibration-proof structure according to claim 1 is characterized in that the mixture of above-mentioned cured layer (2) for epoxy resin and curing agent, and it is arranged at the outer ring (1a) and inner ring (1b) surface of soft magnet core body (1) respectively.
3, vibration-proof structure according to claim 2 is characterized in that the above-mentioned cured layer (2) on soft magnet core body (1) outer ring (1a) and inner ring (1b) surface that is arranged at is for all covering or partly be covered in the outer ring (1a) and inner ring (1b) surface of soft magnet core body (1).
4, vibration-proof structure according to claim 1 is characterized in that above-mentioned cured layer is an adhesive, and it is arranged at soft magnet core body (1) both sides end faces (1c) respectively and is and evenly is immersed between the strip in the formed slit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520058193 CN2796044Y (en) | 2005-05-16 | 2005-05-16 | Shock-proof structure of nano crystal soft magnetic core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520058193 CN2796044Y (en) | 2005-05-16 | 2005-05-16 | Shock-proof structure of nano crystal soft magnetic core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2796044Y true CN2796044Y (en) | 2006-07-12 |
Family
ID=36813795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520058193 Expired - Fee Related CN2796044Y (en) | 2005-05-16 | 2005-05-16 | Shock-proof structure of nano crystal soft magnetic core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2796044Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105623462A (en) * | 2014-11-06 | 2016-06-01 | 山东海源光电科技有限公司 | Epoxy resin spray-coating method and special-purpose epoxy resin spray-coating liquid thereof |
| CN105778705A (en) * | 2014-12-25 | 2016-07-20 | 山东海源光电科技有限公司 | Fe-based nanocrystalline iron core paint-spraying method |
-
2005
- 2005-05-16 CN CN 200520058193 patent/CN2796044Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105623462A (en) * | 2014-11-06 | 2016-06-01 | 山东海源光电科技有限公司 | Epoxy resin spray-coating method and special-purpose epoxy resin spray-coating liquid thereof |
| CN105778705A (en) * | 2014-12-25 | 2016-07-20 | 山东海源光电科技有限公司 | Fe-based nanocrystalline iron core paint-spraying method |
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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: 20060712 Termination date: 20100516 |