CN2583783Y - Iron hoop-free dry reactor - Google Patents
Iron hoop-free dry reactor Download PDFInfo
- Publication number
- CN2583783Y CN2583783Y CN 02279713 CN02279713U CN2583783Y CN 2583783 Y CN2583783 Y CN 2583783Y CN 02279713 CN02279713 CN 02279713 CN 02279713 U CN02279713 U CN 02279713U CN 2583783 Y CN2583783 Y CN 2583783Y
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- coil
- iron core
- layer
- inner iron
- mid point
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Abstract
The utility model relates to a dry reactor without a yoke, which comprises a coil and an air flues. The utility model is characterized in that an inner iron core column, the cross section of which is circular ring-shaped is sheathed in the coil; the inner iron core column is electrically connected with the innermost layer of the coil; one of the air flues is separated between the inner iron core column and the innermost layer of the coil; a magnetic shield layer, the cross section of which is circular ring-shaped is sheathed with the outer side of the coil; the magnetic shield layer is electrically connected with the outermost layer of the coil; the other air flue is separated between the magnetic shield layer and the outermost layer of the coil; the inner iron core column and the magnetic shield layer are both made of magnetic conductive materials; the inner side, the outer side and both ends of the inner iron core column are wrapped with insulating layers. The mid point of the inner iron core column is electrically connected with the mid point of the innermost layer of the coil; the mid point of the magnetic shield layer is electrically connected with the mid point of the outermost layer of the coil. The dry reactor without a yoke which is provided by the utility model has the technical advantages of the weakness of magnetic fields surrounding space by the action of magnetic shield, the assurance of no magnetic interference for instruments and meters, simple structure, low loss and small size; the inductance value of the utility model is constant within the range of more times of current.
Description
Technical field
The utility model relates to a kind of reactor, is specifically related to a kind of iron-free yoke dry reactor.
Background technology
Along with power system development, the increasing of large-scale electric equipment, the consumption of reactor is more and more.The reactor structural shape mainly contains following two kinds at present:
(1) its advantage of iron-core reactor is that loss is low, but because its magnetic flux density is higher, and it is non-linear that inductance value is, structure is complicated in addition, and noise is bigger.
(2) its advantage of air core reactor is that inductance value is constant, and simple in structure, noise is little, but its loss is bigger, and volume is bigger, and its magnetic field is to instrument, instrument are disturbed bigger on every side.
The domestic in recent years iron-free yoke dry reactor (also claiming half core type) of having developed several patterns, its performance falls between, as 98233242.4 and disclosed a kind of magnetic screen dry-type air-core reactor.It is compared with iron-core reactor, and its inductance linearity is far better; Compare with air core reactor, its loss is much smaller, and volume is also much smaller.But the magnetic flux density of this reactor is difficult to improve, and causes loss still bigger.
Summary of the invention
The object of the present invention is to provide a kind of iron-free yoke dry reactor that can overcome above-mentioned defective, the magnetic flux density of this reactor improves a lot, and loss is less.
For achieving the above object, a kind of iron-free yoke dry reactor comprises coil and air flue, it is characterized in that: being with the cross section in the described coil is the inner iron core post of annular, does electric the connection between inner iron core post and the coil innermost layer, is separated with air flue between the two; Described coil is with the magnetic masking layer that the cross section is an annular outward, and magnetic masking layer is done electric the connection with the coil outermost layer, also is separated with air flue between the two; Described inner iron core post and magnetic masking layer are made by permeability magnetic material, and its inside and outside two ends that reach are surrounded by insulating barrier.
Do electric the connection between the mid point of the mid point of described inner iron core post and coil innermost layer; The mid point of described magnetic masking layer is done electric the connection with the outermost mid point of coil.
Dry reactor provided by the invention has following technical advantage:
(1) simple in structure, loss is low, and volume is little.
(2) its inductance value is a constant in bigger electric current multiple scope.
(3) when having magnetic masking layer, magnetic screening action is arranged, the magnetic field in space around having weakened greatly; Guarantee that instrument, instrument are not subjected to magnetic interference.
Description of drawings
Fig. 1 is the structural representation of the utility model dry reactor.
Embodiment
The utility model proposes a kind of iron-free yoke dry reactor of new construction, as shown in Figure 1, this reactor is made up of inner iron core post 2, air flue 4, coil 1 and external magnetism shielding layer 3.Iron-free yoke between inner iron core post 2 and the external magnetism shielding layer 3.Coil 1 is formed by the insulated conductor coiling, and the coil pattern can be Multi-layer Parallel formula structure or series-mode frame.Inner iron core post 2 can be circular core limb or annular cross section core limb, and core limb is made by silicon steel sheet or other permeability magnetic materials, and its inside and outside two ends that reach are surrounded by insulating barrier.The mid point of inner iron core post is done electric the connection with the mid point of coil 1 innermost layer, external magnetism shielding layer 3 is an annular cross section core limb, make by silicon steel sheet or other permeability magnetic materials, its inside and outside two ends that reach are surrounded by insulating barrier, its mid point is done electric the connection with coil 1 outermost mid point, be divided into air flue 4 with stay between external magnetism shielding layer 3 and coil 1 cylindrical, be divided into air flue 4 ' with stay between circle in inner iron core post 2 and the coil 1, air flue plays insulation and thermolysis.
Structure of the present utility model is not limited to the content of the foregoing description, and when reactor winding was the annular cross section, coil is outer can not to overlap magnetic masking layer.The utility model can make the design of reactor more flexible, and can reduce production costs.At the reactor capacity hour, can make the cross section is square reactor, and the cross section that also can be each component parts is partly or entirely for square.
Claims (3)
1, a kind of iron-free yoke dry reactor comprises coil and air flue, it is characterized in that: being with the cross section in the described coil is the inner iron core post of annular, does electric the connection between inner iron core post and the coil innermost layer, is separated with air flue between the two; Described coil is with the magnetic masking layer that the cross section is an annular outward, and magnetic masking layer is done electric the connection with the coil outermost layer, also is separated with air flue between the two; Described inner iron core post and magnetic masking layer are made by permeability magnetic material, and its inside and outside two ends that reach are surrounded by insulating barrier.
2, reactor according to claim 1 is characterized in that: do electric the connection between the mid point of the mid point of described inner iron core post and coil innermost layer.
3, reactor according to claim 1 and 2 is characterized in that: the mid point of described magnetic masking layer is done electric the connection with the outermost mid point of coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02279713 CN2583783Y (en) | 2002-10-24 | 2002-10-24 | Iron hoop-free dry reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02279713 CN2583783Y (en) | 2002-10-24 | 2002-10-24 | Iron hoop-free dry reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2583783Y true CN2583783Y (en) | 2003-10-29 |
Family
ID=33742719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02279713 Expired - Fee Related CN2583783Y (en) | 2002-10-24 | 2002-10-24 | Iron hoop-free dry reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2583783Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104347251A (en) * | 2013-07-26 | 2015-02-11 | 青岛菲特电器科技有限公司 | Multi-tap hybrid excitation type controllable electric reactor |
-
2002
- 2002-10-24 CN CN 02279713 patent/CN2583783Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104347251A (en) * | 2013-07-26 | 2015-02-11 | 青岛菲特电器科技有限公司 | Multi-tap hybrid excitation type controllable electric reactor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |