CN208507413U - A kind of transformer iron-core structure - Google Patents
A kind of transformer iron-core structure Download PDFInfo
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- CN208507413U CN208507413U CN201821283723.7U CN201821283723U CN208507413U CN 208507413 U CN208507413 U CN 208507413U CN 201821283723 U CN201821283723 U CN 201821283723U CN 208507413 U CN208507413 U CN 208507413U
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Abstract
The utility model discloses a kind of transformer iron-core structures, including core body and the upper clamping piece that core body sandwich is fixed, the core body is mutually accumulated by several silicon steel sheets to be formed, the core body includes central core section and the left side core packet and right side core packet for being located at central core section two sides, the upper end in the section of the central core section is in that multistage ladder-like, the lower end alignment formation straight line in the section of the central core section is gradually decreased by center to height on both sides；The upper end alignment in the section of the left side core packet forms straight line, and the lower end surface in the section of the left side core packet is in that the multistage that central core section height gradually decreases backwards is ladder-like；The left side core packet and right side core packet is arranged by symmetrical centre axial symmetry of the central axis of central core section.The utility model has the following advantages that and effect: silicon steel sheet dosage is further reduced, to reduce production cost.
Description
Technical field
The utility model relates to transformer technology field, in particular to a kind of transformer iron-core structure.
Background technique
The iron core of transformer does not use a monolith iron core, made of silicon steel plate stacking.The purpose for the arrangement is that
In order to increase the resistance in iron core, reduces the vortex in iron core, improve the efficiency of transformer, according to a monolith iron core, can produce
Raw vortex, burns winding, makes transformer that can not work.
Core structure (with reference to shown in attached drawing 1) in the prior art, iron core is mutually accumulated by several silicon steel sheets to be formed, and whole
The top and the bottom of body section are in that multistage is ladder-like, and core design is allowed to have space utilization rate height, iron close to circle at ladder
The maximized advantage of the area of core effective cross-section, while silicon steel sheet dosage can also be reduced, reduce cost.
The area of iron core effective cross-section, it is long-pending equal to the geometric cross section of multistage iron core multiplied by lamination coefficient, and lamination coefficient is
One constant.Wish that effective cross-section is big as far as possible when design, but in practice, is not only to consider that effective cross-section is maximum, also because examining
Consider the cost problem of production, iron loss and copper loss can be reduced in this way, material can also be saved.
Utility model content
The purpose of the utility model is to provide a kind of transformer iron-core structures, are further reduced silicon steel sheet dosage, to reduce
Production cost.
The above-mentioned technical purpose of the utility model has the technical scheme that a kind of transformer core knot
Structure, including core body and the upper clamping piece that core body sandwich is fixed, the core body is by several silicon steel sheets
Mutually accumulation composition, the core body includes central core section and the left side for being located at central core section two sides
Core packet and right side core packet, the upper end in the section of the central core section are in be gradually decreased by center to height on both sides
Multistage ladder-like, the lower end alignment in the section of the central core section forms straight line；The left side core packet
The upper end alignment in section form straight line, the lower end surface in the section of the left side core packet is in backwards to central core
The multistage that Duan Gaodu is gradually decreased is ladder-like；The left side core packet and right side core packet be with the central axis of central core section
The setting of symmetrical centre axial symmetry.
By using above-mentioned technical proposal, upper clamping piece tightly clamps core body, to prevent silicon steel sheet from rushing in extraneous
It hits down and falls off.In addition, the structure that core body is made of central core section, left side core packet and right side core packet, relative to
Traditional core structure, the lower part of central core section has been clipped it is a bit of, by the upper of left side core packet and right side core packet
A part has been clipped in part, although effective sectional area is declined, whole still to tend to be round, change in magnetic flux density is not
Greatly, it is more the reduction of silicon steel sheet dosage, and then saves material, and reduce the height of core body, facilitates the peace of core body
Dress and maintenance.
It is further arranged to: being fixedly installed insulation folder between the core body and upper clamping piece.
By using above-mentioned technical proposal, the current potential of core body different location is different, in order not to as generate circulation,
It requires iron core can only one point earth, therefore to have insulation between iron core and folder, the utility model is provided with insulation folder,
To distinguish the ground connection of iron core and the ground connection of folder.
Be further arranged to: the top of the core body and low side are fixedly installed insulation drawstring, and described is exhausted
Edge drawstring and core body constitute longitudinal spacing.
By using above-mentioned technical proposal, the setting for the drawstring that insulate plays the role of the core body that is strained and fixed, due to upper
Folder only fixes the sandwich of core body, and there may be the feelings of loosening under long-term use and the collision in the external world
Condition, therefore, the utility model further prevent falling off for the silicon copper sheet of intimate ontology, ensure that iron by setting insulation drawstring
The mechanical strength and stability of core ontology, to improve service life.
Detailed description of the invention
Fig. 1 is the cross-sectional view of core structure in the prior art；
Fig. 2 is the structural schematic diagram for being equipped with the transformer of the utility model；
Fig. 3 is the A-A cross-sectional view of Fig. 2.
In figure: 1, iron core；11, silicon steel sheet；2, transformer；3, upper clamping piece；4, core body；41, central core section；42,
Left side core packet；43, right side core packet；5, insulate folder；6, insulate drawstring.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
With reference to Fig. 2, for be equipped with the utility model transformer structural schematic diagram, the cross-sectional view in the face A-A is this
Utility model.
With reference to Fig. 3, a kind of transformer iron-core structure is fixed including core body and by core body sandwich
Upper clamping piece, core body is mutually accumulated by several silicon steel sheets to be formed, and core body includes central core section and is located at
The left side core packet and right side core packet of central core section two sides, the upper end in the section of central core section are in by center to two sides height
It spends and gradually decreases multistage ladder-like, the lower end alignment formation straight line in the section of central core section；Left side iron core
The upper end alignment in the section of section forms straight line, and the lower end surface in the section of left side core packet is in high backwards to central core section
It is ladder-like to spend the multistage gradually decreased；Left side core packet and right side core packet are using the central axis of central core section as symmetrical centre axis
It is symmetrical arranged, upper clamping piece is voltage device field conventional fitment.
In addition, being fixedly installed insulation folder between core body and upper clamping piece, which (is not marked with strap in figure
It is tied up out) in upper clamping piece.
In addition, the top of core body and low side are fixedly installed insulation drawstring, insulation drawstring and core body are constituted
Longitudinal spacing.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (3)
1. a kind of transformer iron-core structure, described including core body and the upper clamping piece that core body sandwich is fixed
Core body mutually accumulated and form by several silicon steel sheets, it is characterised in that: the core body include central core section,
And be located at the left side core packet and right side core packet of central core section two sides, the section of the central core section it is upper
End is ladder-like in the multistage gradually decreased by center to height on both sides, and the lower end in the section of the central core section is aligned row
Column form straight line；
The upper end alignment in the section of the left side core packet forms straight line, the section of the left side core packet
Lower end surface is in that the multistage that central core section height gradually decreases backwards is ladder-like；
The left side core packet and right side core packet is arranged by symmetrical centre axial symmetry of the central axis of central core section.
2. a kind of transformer iron-core structure according to claim 1, it is characterised in that: the core body and upper clamping piece
Between be fixedly installed insulation folder.
3. a kind of transformer iron-core structure according to claim 1, it is characterised in that: the top of the core body and
Low side is fixedly installed insulation drawstring, and the insulation drawstring and core body constitute longitudinal spacing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821283723.7U CN208507413U (en) | 2018-08-09 | 2018-08-09 | A kind of transformer iron-core structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821283723.7U CN208507413U (en) | 2018-08-09 | 2018-08-09 | A kind of transformer iron-core structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208507413U true CN208507413U (en) | 2019-02-15 |
Family
ID=65300163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821283723.7U Active CN208507413U (en) | 2018-08-09 | 2018-08-09 | A kind of transformer iron-core structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208507413U (en) |
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2018
- 2018-08-09 CN CN201821283723.7U patent/CN208507413U/en active Active
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