CN218826558U

CN218826558U - Oil-immersed iron core structure adopting U-shaped iron yoke structure and reactor

Info

Publication number: CN218826558U
Application number: CN202223293215.6U
Authority: CN
Inventors: 王小娟; 沈钰伟; 华佳佳; 曹峰
Original assignee: Nissin Electric Wuxi Co Ltd
Current assignee: Nissin Electric Wuxi Co Ltd
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-04-07
Anticipated expiration: 2032-12-08

Abstract

The utility model relates to an adopt oily formula iron core structure and reactor of U type yoke structure. The utility model comprises an iron core column, wherein the iron core column is sleeved with a winding; the magnetic core comprises an iron yoke part and a magnetic core body, wherein the iron yoke part comprises an upper iron yoke and a lower iron yoke, the upper iron yoke and the lower iron yoke are respectively connected to two ends of an iron core column and are matched with the iron core column to form a closed magnetic circuit; the upper iron yoke and the lower iron yoke are both stacked to form a double-U-shaped structure, the double-U-shaped structure comprises a first stacked edge, two ends of the first stacked edge respectively extend along two opposite sides of the first stacked edge to form two U-shaped stacked rings which are symmetrically arranged, each U-shaped stacked ring is provided with a second stacked edge between the U-shaped stacked ring and the first stacked edge, and the second stacked edge is respectively provided with an insulating plate between the U-shaped stacked ring and the first stacked edge. The utility model discloses can effectively absorb the magnetic leakage flux between stem-indisputable yoke tip, solve local overheat problem, and prevent effectively that this place magnetic leakage flux from getting into the phenomenon of generating heat that the tank wall arouses.

Description

Oil-immersed iron core structure adopting U-shaped iron yoke structure and reactor

Technical Field

The utility model belongs to the technical field of power equipment manufacturing and designing technique and specifically relates to indicate an adopt oily formula iron core structure and reactor of U type indisputable yoke structure.

Background

A linear three-phase oil immersed iron core reactor and a single-phase oil immersed reactor are provided, wherein an iron yoke is generally in a common lamination type, and local overheating is easily caused due to the action of leakage magnetic flux when magnetic flux enters the iron yoke from a core column. The existing high-voltage oil-immersed iron core reactor can be provided with magnetic shielding to reduce influence, but the cost is increased, and the process requirement is high.

Disclosure of Invention

Therefore, the utility model provides an adopt oily formula iron core structure and reactor of U type yoke structure has improved reactor iron core structure, increases coiling formula U type structure on the basis of original lamination yoke, is the cyclic annular inflow of U type pile up when the magnetic flux of the iron core post that makes the reactor gets into the yoke, avoids the right angle to get into and produces local overheat.

In order to solve the technical problem, the utility model provides an adopt oily formula iron core structure of U type indisputable yoke structure, include:

the iron core column is sleeved with a winding;

the iron yoke part comprises an upper iron yoke and a lower iron yoke, the upper iron yoke and the lower iron yoke are respectively connected to two ends of the iron core column and are matched with the iron core column to form a closed magnetic circuit;

the upper iron yoke and the lower iron yoke are both stacked to form a double-U-shaped structure, the double-U-shaped structure comprises a first stacked edge, two ends of the first stacked edge respectively extend along two opposite sides of the first stacked edge to form two U-shaped stacked rings which are symmetrically arranged, each U-shaped stacked ring is provided with a second stacked edge between the U-shaped stacked ring and the first stacked edge, and the second stacked edge is respectively provided with an insulating plate between the U-shaped stacked ring and the first stacked edge.

The utility model discloses an in an embodiment, follow core limb axial is equipped with first connect the via hole, first amalgamation limit is equipped with the second connect the via hole with first connect the via hole complex.

The utility model discloses an in an embodiment, U type pile up and encircle both ends and be U type structure respectively, U type structure includes the arc limit and connects in two straight flanges on the arc limit.

In an embodiment of the present invention, a through cavity is formed between the U-shaped structure and the second stacking edge.

In an embodiment of the present invention, the insulating plate is respectively disposed between the second stacked edge and the two straight edges.

In an embodiment of the present invention, three iron core columns are disposed between the upper iron yoke and the lower iron yoke side by side.

In an embodiment of the present invention, the upper iron yoke and/or the lower iron yoke are connected to a ground wire.

The utility model discloses an in the embodiment, still include the fastening gold utensil, go up the indisputable yoke and connect in the upper and lower both ends of iron core post through the fastening gold utensil separately with indisputable yoke down.

The utility model discloses an in an embodiment, it has yoke portion fastening bolt to distribute on the fastening gold utensil.

The utility model also provides a reactor, include the oily formula iron core structure of adoption U type yoke structure.

Compared with the prior art, the technical scheme of the utility model have following advantage:

an adopt oily formula iron core structure of U type indisputable yoke structure, improved reactor iron core structure, increase coiling formula U type structure on the basis of original lamination indisputable yoke, be the cyclic annular inflow of U type pile-up when making the magnetic flux of the iron core post of reactor get into the indisputable yoke, avoid the right angle to get into and produce local overheat, the utility model discloses can effectively absorb the magnetic leakage flux between stem-indisputable yoke tip, solve local overheat problem, and prevent effectively that this place magnetic leakage flux from getting into the phenomenon of generating heat that the tank wall arouses.

Drawings

In order to make the content of the present invention more clearly understood, the present invention will be described in further detail with reference to the following specific embodiments of the present invention in conjunction with the accompanying drawings.

Fig. 1 is the utility model discloses an oil-immersed iron core structure overall structure schematic diagram of U type yoke structure.

Fig. 2 is a schematic view of the iron yoke structure of the present invention.

Fig. 3 is a partially enlarged view of fig. 2.

Fig. 4 is a schematic view of fastening fitting connection.

The specification reference numbers indicate: 1. a core limb; 11. a first connecting through hole; 2. an iron yoke portion; 21. an upper iron yoke; 22. a lower iron yoke; 3. a first stacked edge; 31. a second connecting through hole; 4. a U-shaped stacking ring; 41. an arc-shaped edge; 42. a straight edge; 5. a second stacking edge; 6. an insulating plate; 7. a cavity is communicated; 8. a ground lead; 9. fastening a hardware fitting; 10. and a yoke part is fastened with a bolt.

Detailed Description

The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.

Referring to fig. 1 to 4, the utility model discloses an adopt oily formula iron core structure of U type yoke structure, include:

the winding comprises a core limb 1, wherein the core limb 1 is sleeved with a winding;

the magnetic core comprises a core limb 2, wherein the core limb 2 comprises an upper core limb 21 and a lower core limb 22, the upper core limb 21 and the lower core limb 22 are respectively connected to two ends of the core limb 1 and are matched with the core limb 1 to form a closed magnetic circuit;

wherein, it is two U type structures with lower yoke 22 equal stack of upper yoke 21, two U type structures include first stack limit 3, the both ends of first stack limit 3 extend respectively and form two U type stack rings 4 that the symmetry set up along the relative both sides in first stack limit 3 respectively, every be equipped with second stack limit 5 between U type stack ring 4 and the first stack limit 3, second stack limit 5 respectively with U type stack ring 4 and first stack limit 3 between be equipped with insulation board 6.

Specifically, a first connecting through hole 11 is formed along the axial direction of the core limb 1, and the first stacking edge 3 is provided with a second connecting through hole 31 which is matched with the first connecting through hole 11. Facilitating the axial connection between the core limb 1 and the upper and

lower yokes

21, 22. In this embodiment, the connection is performed by a screw.

Specifically, two ends of the U-shaped stacking ring 4 are respectively U-shaped structures, and each U-shaped structure includes an arc-shaped edge 41 and two straight edges 42 connected to the arc-shaped edge 41.

In particular, a through cavity 7 is formed between the U-shaped structure and the second stacking edge 5.

Specifically, the insulating plates 6 are respectively disposed between the second stacked edge 5 and the two straight edges 42. Through the arrangement, the insulating plate 6 has large magnetic resistance, can isolate magnetic lines of force and guide the magnetic lines of force to circulate along the U-shaped directions at the two ends

Specifically, three core legs 1 are arranged side by side between the upper and

lower yokes

21 and 22.

Specifically, the upper iron yoke 21 and/or the lower iron yoke 22 are connected with a grounding wire 8, so that the iron core is conveniently grounded.

Specifically, the iron core column comprises a fastening hardware 9, wherein the upper iron yoke 21 and the lower iron yoke 22 are respectively fixed at the upper end and the lower end of the iron core column 1 through the fastening hardware 9, and yoke fastening bolts 10 are distributed on the fastening hardware 9.

The utility model provides a pair of reactor, including the above-mentioned oily formula iron core structure who adopts U type indisputable yoke structure. Improved reactor iron core structure, increased coiling formula U type structure on the basis of original lamination indisputable yoke, be U type pile-up 4 forms of ring and flow in when making the magnetic flux of the indisputable stem 1 of reactor get into the indisputable yoke, avoid the right angle to get into and produce local overheat, the utility model discloses can effectively absorb the magnetic leakage flux between stem-indisputable yoke tip, solve local overheat problem, and prevent effectively that this magnetic leakage flux from getting into the phenomenon of generating heat that the tank wall arouses.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention is described in detail with reference to examples, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims

1. The utility model provides an adopt oily formula iron core structure of U type yoke structure which characterized in that includes:

the iron core column (1), the said iron core column (1) is fitted with the winding;

the magnetic core comprises a core yoke part (2), wherein the core yoke part (2) comprises an upper core yoke (21) and a lower core yoke (22), the upper core yoke (21) and the lower core yoke (22) are respectively connected to two ends of a core limb (1) and matched with the core limb (1) to form a closed magnetic circuit;

the upper iron yoke (21) and the lower iron yoke (22) are of a double-U-shaped structure in an all-stacking mode, the double-U-shaped structure comprises a first stacking edge (3), two ends of the first stacking edge (3) respectively extend along two opposite sides of the first stacking edge (3) to form two U-shaped stacking rings (4) which are symmetrically arranged, each U-shaped stacking ring (4) is provided with a second stacking edge (5) between the first stacking edge (3) and the U-shaped stacking ring (4), and an insulating plate (6) is arranged between the second stacking edge (5) and the U-shaped stacking rings (4) and the first stacking edge (3).

2. An oil-immersed core structure adopting a U-shaped yoke structure according to claim 1, wherein a first connecting through hole (11) is formed along the axial direction of the core limb (1), and the first stacking edge (3) is provided with a second connecting through hole (31) matched with the first connecting through hole (11).

3. The oil-immersed iron core structure adopting the U-shaped iron yoke structure according to claim 1, wherein the U-shaped stacking ring (4) has a U-shaped structure at each of two ends, and the U-shaped structure comprises an arc-shaped edge (41) and two straight edges (42) connected to the arc-shaped edge (41).

4. Oil-immersed core structure with U-shaped yoke structure according to claim 3, characterized in that the U-shaped structure and the second stacked edge (5) form a through cavity (7) therebetween.

5. The oil-immersed core structure with the U-shaped yoke structure according to claim 3, wherein the insulating plates (6) are respectively disposed between the second stacking edge (5) and the two straight edges (42).

6. An oil-immersed core structure adopting a U-shaped iron yoke structure according to claim 1, wherein three core legs (1) are arranged between the upper iron yoke (21) and the lower iron yoke (22) side by side.

7. The oil-immersed core structure adopting the U-shaped iron yoke structure according to claim 1, wherein the upper iron yoke (21) and/or the lower iron yoke (22) is connected with a grounding wire (8).

8. The oil-immersed core structure adopting the U-shaped iron yoke structure according to claim 1, further comprising fastening fittings (9), wherein the upper iron yoke (21) and the lower iron yoke (22) are respectively connected to the upper end and the lower end of the core limb (1) through the fastening fittings (9).

9. The oil-immersed iron core structure adopting the U-shaped iron yoke structure according to claim 8, wherein the fastening hardware (9) is distributed with yoke fastening bolts (10).

10. An electric reactor, characterized by comprising the oil-immersed core structure adopting the U-shaped iron yoke structure according to any one of claims 1 to 9.