CN204651128U - A kind of mixed magnetic circuit inductor - Google Patents
A kind of mixed magnetic circuit inductor Download PDFInfo
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- CN204651128U CN204651128U CN201520345412.9U CN201520345412U CN204651128U CN 204651128 U CN204651128 U CN 204651128U CN 201520345412 U CN201520345412 U CN 201520345412U CN 204651128 U CN204651128 U CN 204651128U
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- circuit inductor
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Abstract
A kind of mixed magnetic circuit inductor, relate to inductors technique field, its structure comprises magnetic core and coil, magnetic core comprises the first magnetic core and the second magnetic core, first magnetic core has an opening, second magnetic core is clavate, end face and the first magnetic core two medial surfaces of second magnetic core are connected to form closed magnetic core, second magnetic core is wound with coil, first magnetic core is the first magnetic core that metal dust that relative permeability is less than 800 is made, second magnetic core is amorphous alloy or the second magnetic core made of ultracrystallite that relative permeability is greater than 1000, by adopting the magnetic core of two kinds of materials used in combination, the inside of the mixing magnetic core of the mixing magnetic core that metal dust and amorphous alloy are formed or metal dust and ultracrystallite formation has many small air gaps, therefore magnetic core is more difficult saturated, power can be done more when volume does not increase, the stability of amorphous alloy or ultracrystallite is better simultaneously, can higher temperatures or comparatively low temperature etc. comparatively rugged environment use.
Description
Technical field
The utility model relates to inductors technique field, particularly relates to a kind of mixed magnetic circuit inductor.
Background technology
Inductor (Inductor) can be the element that magnetic energy stores electric energy conversion.The similar of inductor in transformer, but only has a winding.Inductor has certain inductance, and it only hinders the change of electric current.Inductor is under the state not having electric current to pass through, and during circuit ON, it will attempt to hinder electric current to flow through it; Inductor under the state having electric current to pass through, circuit disconnect time it will attempt maintenance electric current constant.Inductor is also known as choke, reactor or dynamic reactor.
In prior art, the iron core of inductor generally selects a kind of material, the soft magnetic material iron core scope that high frequency differential mode inductance can be selected is little, such as FERRITE CORE or magnetic magnetic core, but the saturation flux density of FERRITE CORE is little, during big current, magnetic core is easily saturated, therefore power can not do too large, power does large volume is just very large, the less stable of FERRITE CORE simultaneously, is not suitable for using under the environment of superhigh temperature or ultralow temperature; The loss of powder core magnetic core is large, and inductance value can reduce gradually with the increase of electric current.
Utility model content
The purpose of this utility model is avoid weak point of the prior art and provide a kind of mixed magnetic circuit inductor, and the power of this mixed magnetic circuit inductor can do more, good stability.
The purpose of this utility model is achieved through the following technical solutions:
A kind of mixed magnetic circuit inductor is provided, comprise magnetic core and coil, it is characterized in that: described magnetic core comprises the first magnetic core and the second magnetic core, described first magnetic core has an opening, described second magnetic core is clavate, end face and the first magnetic core two medial surfaces of described second magnetic core are connected to form closed magnetic core, described second magnetic core is wound with coil, described first magnetic core is the first magnetic core that metal dust that relative permeability is less than 800 is made, and described second magnetic core is amorphous alloy or the second magnetic core made of ultracrystallite that relative permeability is greater than 1000.
Described first magnetic core is any one in Fe-Si-Al magnetic core, iron silica magnetic particle core, high magnetic flux powder core and molybdenum perm powder core.
The cross section of described second magnetic core is circle, rectangle or ellipse.
Described first magnetic core is the magnetic core of U-shaped structure or C type structure.
The air gap pad that width is less than 0.5mm is provided with between at least one end face of described second magnetic core and the first magnetic core.
Described air gap pad is the air gap pad be made up of bonding agent.
Described air gap pad is the air gap pad be made up of isolation material.
Described coil is formed by copper cash, copper-clad aluminum conductor or aluminum steel coiling.
The beneficial effects of the utility model: the utility model comprises magnetic core and coil, described magnetic core comprises the first magnetic core and the second magnetic core, described first magnetic core has an opening, described second magnetic core is clavate, end face and the first magnetic core two medial surfaces of described second magnetic core are connected to form closed magnetic core, described second magnetic core is wound with coil, described first magnetic core is the first magnetic core that metal dust that relative permeability is less than 800 is made, and described second magnetic core is amorphous alloy or the second magnetic core made of ultracrystallite that relative permeability is greater than 1000.
The utility model is used in combination by the magnetic core of employing two kinds of materials, the inside of the mixing magnetic core of the mixing magnetic core that metal dust and amorphous alloy are formed or metal dust and ultracrystallite formation has many small air gaps, therefore magnetic core is more difficult saturated, power can be done more when volume does not increase, simultaneously the stability of amorphous alloy or ultracrystallite is better, can higher temperatures or comparatively low temperature etc. comparatively rugged environment use.
Accompanying drawing explanation
Accompanying drawing is utilized to be described further utility model, but the embodiment in accompanying drawing does not form any restriction of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the following drawings.
Fig. 1 is a kind of magnetic core of mixed magnetic circuit inductor of the present utility model and the structural representation of coil.
Fig. 2 is a kind of magnetic core of mixed magnetic circuit inductor of the present utility model and the decomposition texture schematic diagram of coil.
Include in figure:
1---the first magnetic core;
2---the second magnetic core;
3---coil.
Embodiment
With the following Examples the utility model is further described.
A kind of mixed magnetic circuit inductor of the present embodiment, as depicted in figs. 1 and 2, comprise magnetic core and coil 3, described magnetic core comprises the first magnetic core 1 and the second magnetic core 2, described first magnetic core 1 has an opening, described second magnetic core 2 is in clavate, end face and the first magnetic core 1 two medial surfaces of described second magnetic core 2 are connected to form closed magnetic core, described second magnetic core 2 is wound with coil 3, described first magnetic core 1 is the first magnetic core 1 that the metal dust being less than 800 by relative permeability is made, described second magnetic core 2 be greater than by relative permeability 1000 amorphous alloy or the second magnetic core 2 of making of ultracrystallite.
The present embodiment is used in combination by the magnetic core of employing two kinds of materials, the inside of the mixing magnetic core of the mixing magnetic core that metal dust and amorphous alloy are formed or metal dust and ultracrystallite formation has many small air gaps, therefore magnetic core is more difficult saturated, power can be done more when volume does not increase, simultaneously the stability of amorphous alloy or ultracrystallite is better, can higher temperatures or comparatively low temperature etc. comparatively rugged environment use.
Wherein, described first magnetic core 1 is Fe-Si-Al magnetic core, core loss lower than original iron aluminum silicon powder, and far below the loss of ferrocart core.
Wherein, the cross section of described second magnetic core 2 rod is circular.
Wherein, described first magnetic core 1 is the magnetic core of U-shaped structure, also can be C type structure.
Wherein, the air gap pad that width is less than 0.5mm is provided with between an end face of described second magnetic core 2 and the first magnetic core 1, can prevent the saturated of the second magnetic core 2, also can be equipped with the air gap pad that width is less than 0.5mm between two end faces of the second magnetic core 2 and the first magnetic core 1, anti-saturation effect be better.
Wherein, described air gap pad, for be made up of bonding agent, also can be made up of other insulating material.
Wherein, described coil 3 is formed by aluminum steel coiling, uses aluminum steel to reduce costs.
Finally should be noted that; above embodiment is only in order to illustrate the technical solution of the utility model; but not the restriction to the utility model protection range; although done to explain to the utility model with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to the technical solution of the utility model or equivalent replacement, and not depart from essence and the scope of technical solutions of the utility model.
Claims (8)
1. a mixed magnetic circuit inductor, comprise magnetic core and coil, it is characterized in that: described magnetic core comprises the first magnetic core and the second magnetic core, described first magnetic core has an opening, described second magnetic core is clavate, end face and the first magnetic core two medial surfaces of described second magnetic core are connected to form closed magnetic core, described second magnetic core is wound with coil, described first magnetic core is the first magnetic core that metal dust that relative permeability is less than 800 is made, and described second magnetic core is amorphous alloy or the second magnetic core made of ultracrystallite that relative permeability is greater than 1000.
2. a kind of mixed magnetic circuit inductor as claimed in claim 1, is characterized in that: described first magnetic core is any one in Fe-Si-Al magnetic core, iron silica magnetic particle core, high magnetic flux powder core and molybdenum perm powder core.
3. a kind of mixed magnetic circuit inductor as claimed in claim 1, is characterized in that: the cross section of described second magnetic core is circle, rectangle or ellipse.
4. a kind of mixed magnetic circuit inductor as claimed in claim 1, is characterized in that: described first magnetic core is the magnetic core of U-shaped structure or C type structure.
5. a kind of mixed magnetic circuit inductor as claimed in claim 1, is characterized in that: be provided with the air gap pad that width is less than 0.5mm between at least one end face of described second magnetic core and the first magnetic core.
6. a kind of mixed magnetic circuit inductor as claimed in claim 5, is characterized in that: described air gap pad is the air gap pad be made up of bonding agent.
7. a kind of mixed magnetic circuit inductor as claimed in claim 5, is characterized in that: described air gap pad is the air gap pad be made up of isolation material.
8. a kind of mixed magnetic circuit inductor as claimed in claim 1, is characterized in that: described coil is formed by copper cash, copper-clad aluminum conductor or aluminum steel coiling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520345412.9U CN204651128U (en) | 2015-05-26 | 2015-05-26 | A kind of mixed magnetic circuit inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520345412.9U CN204651128U (en) | 2015-05-26 | 2015-05-26 | A kind of mixed magnetic circuit inductor |
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| Publication Number | Publication Date |
|---|---|
| CN204651128U true CN204651128U (en) | 2015-09-16 |
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| CN201520345412.9U Active CN204651128U (en) | 2015-05-26 | 2015-05-26 | A kind of mixed magnetic circuit inductor |
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| CN (1) | CN204651128U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105097223A (en) * | 2015-09-21 | 2015-11-25 | 杭州中恒电气股份有限公司 | Hybrid magnetic circuit inductor |
| CN106449043A (en) * | 2016-12-09 | 2017-02-22 | 徐超 | Magnetic core of transformer |
| CN106950515A (en) * | 2015-11-02 | 2017-07-14 | Tdk株式会社 | Magnetic Sensor and the current sensor for possessing it |
-
2015
- 2015-05-26 CN CN201520345412.9U patent/CN204651128U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105097223A (en) * | 2015-09-21 | 2015-11-25 | 杭州中恒电气股份有限公司 | Hybrid magnetic circuit inductor |
| CN106950515A (en) * | 2015-11-02 | 2017-07-14 | Tdk株式会社 | Magnetic Sensor and the current sensor for possessing it |
| CN106950515B (en) * | 2015-11-02 | 2018-10-02 | Tdk株式会社 | Magnetic Sensor and the current sensor for having it |
| CN106449043A (en) * | 2016-12-09 | 2017-02-22 | 徐超 | Magnetic core of transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160729 Address after: 364000 Longyan City, Fujian province Wuping County Yanqian Industrial Zone B03B08 plots in Fujian province big Electronic Technology Co. Ltd. Patentee after: Fujian province big Electronic Technology Co. Ltd. Address before: The 523121 Guangdong Dongcheng District tea city in Dongguan Province on Industrial Road No. 16 Patentee before: Dongguan Dazhong Electronic Co., Ltd. |