CN219321147U

CN219321147U - High-power reactor

Info

Publication number: CN219321147U
Application number: CN202320285796.4U
Authority: CN
Inventors: 聂祝洋; 刁连杰; 吴剑; 杜庆云
Original assignee: HEFEI ECRIEE-TAMURA ELECTRIC CO LTD
Current assignee: HEFEI ECRIEE-TAMURA ELECTRIC CO LTD
Priority date: 2023-02-22
Filing date: 2023-02-22
Publication date: 2023-07-07
Anticipated expiration: 2033-02-22

Abstract

The utility model provides a high-power reactor, comprising: an iron yoke comprising an upper yoke and a lower yoke; the column iron core is arranged between the upper yoke and the lower yoke and comprises a plurality of block iron cores and clamping plates, and the block iron cores are stacked and placed; the fastening structure is used for installing and fixing the clamping plates on the mutually stacked block iron cores so that a plurality of block iron cores form an integral column iron core; and the coil is wound on the columnar iron core. According to the utility model, the block iron cores and the air gaps are connected into a whole through the stainless steel clamping plates, when the weight of a single column iron core (and a coil) is too heavy, the risk of safety accidents caused by falling of the block iron cores when the column iron cores (and the coil) are conveyed to the lower yoke through the magnetic crane to be assembled is eliminated, and meanwhile, the additional loss of the reactor is reduced as much as possible by reducing the number of the block iron core holes and optimizing stainless steel materials of the clamping pieces.

Description

High-power reactor

Technical Field

The utility model relates to the technical field of reactors, in particular to a high-power reactor.

Background

In the production and manufacturing process of the transformer and the reactor, the carrying and the assembling of the iron core column and the coil are all carried out by using a magnetic crane, the iron core of the transformer is an integral body, and the magnetic crane has no problem naturally. However, the high-power reactor does have a certain difficulty in production and manufacture, the inductance of the iron core reactor is mainly determined by an air gap, a number of turns and the sectional area of the iron core, and the column iron core is divided into a plurality of sections and is not an integral body due to the existence of the air gap, when the column iron core is large and heavy (typically 2 tons), the magnetic force is used for hanging, and the block iron core has the possibility of falling off, so that production accidents are caused, and therefore, the lifting, the transportation and the assembly of the column iron core are technical problems to be solved urgently.

Disclosure of Invention

The utility model aims to provide a high-power reactor so as to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a high power reactor, comprising:

an iron yoke comprising an upper yoke and a lower yoke;

the column iron core is arranged between the upper yoke and the lower yoke and comprises a plurality of block iron cores and clamping plates, and the block iron cores are stacked and placed;

the fastening structure is used for installing and fixing the clamping plates on the mutually stacked block iron cores so that a plurality of block iron cores form an integral column iron core;

and the coil is wound on the columnar iron core.

Preferably, the fastening structure comprises a first fastening piece and holes on the top-most and bottom-most block cores, the holes are formed in the positions of the top-most and bottom-most clamping plates, the first fastening piece penetrates through the holes, and a plurality of block cores are fixed through the clamping plates to form an integral column core.

Preferably, the four corners of the columnar iron core are provided with L-shaped stays.

Preferably, an air gap is arranged between two adjacent iron cores.

Preferably, the air gap is provided with an iron core adhesive layer.

Preferably, the core glue layer is provided with a cavity.

Preferably, the lower yoke is provided with a foot pad.

Preferably, the coil is provided with a terminal.

Preferably, the upper yoke is provided with a lifting lug, and the upper yoke and the lower yoke are fastened into a whole through a second fastener.

Preferably, the turns of the coil have an airway therebetween.

Preferably, the coil is a multi-layer foil wound structure having a plurality of turns, with an insulating layer added between adjacent foils of each turn.

Preferably, the insulating layer is made of insulating paper or film, and the multilayer foil is a multilayer copper foil or aluminum foil.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the block iron cores and the air gaps are connected into a whole through the stainless steel clamping plates, when the weight of a single column iron core (and a coil) is too heavy, the risk of safety accidents caused by falling of the block iron cores when the column iron cores (and the coil) are conveyed to the lower yoke through the magnetic crane to be assembled is eliminated, and meanwhile, the reactor attachment loss is reduced as much as possible by reducing the number of the block iron core holes and optimizing stainless steel materials of the clamping pieces.

According to the utility model, the cavity is formed in the iron core rubber layer, so that the weight of the iron core is reduced under the condition of ensuring that the iron core has good electromagnetic effect, and the weight of the whole high-power reactor is reduced. Each turn of the coil is wound by adopting a layer foil which is copper foil or aluminum foil, and an insulating layer such as polyimide film insulation is added between the copper foil or aluminum foil of each turn of the coil, so as to reduce loss caused by skin effect.

Drawings

FIG. 1 is a three-dimensional schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the utility model at A-A of FIG. 1;

FIG. 3 is a schematic view of the fastening structure of the present utility model for attaching and securing a clamping plate to a leg core formed by a plurality of block cores as a unit;

FIG. 4 is a schematic cross-sectional view of the utility model at B-B in FIG. 3;

FIG. 5 is an enlarged schematic view of the utility model at A in FIG. 1;

in the figure: 1 upper yoke, 2 post iron cores, 2.1 iron cores, 2.2 first fasteners, 2.3L-shaped stays, 2.4 clamping plates, 2.5 air gaps, 2.6 iron core adhesive layers, 2.7 cavities, 3 coils, 4 lower yokes, 5 air passages, 6 pad feet, 7 wiring terminals, 8 lifting lugs, 9 iron yokes, 10 fastening structures, 11 second fasteners, 12 foils and 13 insulating layers.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1:

referring to fig. 1 to 4, the present utility model provides a technical solution:

a high power reactor, comprising:

an iron yoke 9, the iron yoke 9 comprising an upper yoke 1 and a lower yoke 4;

the column iron core 2 is arranged between the upper yoke 1 and the lower yoke 4, the column iron core 2 comprises a plurality of block iron cores 2.1 and clamping plates 2.4, and the block iron cores 2.1 are stacked and placed;

a fastening structure 10 for mounting and fixing the clamping plates 2.4 to the block cores 2.1 stacked on each other so that the plurality of block cores 2.1 constitute an integral column core 2;

and a coil 3, wherein the coil 3 is wound on the pole iron core 2.

Specifically, the fastening structure 10 includes a first fastening member 2.2 and holes formed in the top-most and bottom-most block cores 2.1, the holes are formed in the top-most and bottom-most positions of the clamping plates 2.4, the first fastening member 2.2 penetrates through the holes, and the plurality of block cores 2.1 are fixed through the clamping plates 2.4 to form an integral column core 2. The four corners of the pole core 2 are provided with L-shaped stays 2.3. An air gap 2.5 is arranged between two adjacent iron cores 2.1. The air gap 2.5 is provided with an iron core adhesive layer 2.6.

The column iron core 2 is stacked by a plurality of block iron cores 2.1, and concretely comprises the following components: the top and bottom piece iron core 2.1 trompil, two adjacent piece iron cores 2.1 reserve air gap 2.6, air gap 2.6 and piece iron core 2.1 put in turn like this, use the iron core sticky to adhere to fasten, simultaneously in splint 2.4 adaptation position trompil, use first fastener 2.2 to assemble whole post iron core into a whole, L type stay 2.3 glues in post iron core four corners, after winding up coil 3, use magnetic force to hang transport, when assembling post iron core 2, can directly adsorb the top iron core, do not have piece iron core 2.1 risk that drops, improve manufacturing safety.

The clamping plate 2.4 is a stainless steel clamping plate, and the first fastening member 2.2 and the second fastening member 11 described below are fastening screws.

The top and bottom block iron cores 2.1 are provided with holes, the block iron cores in the middle of the column iron cores are not provided with holes, and the iron core loss and inductance air gap errors caused by the holes are reduced as much as possible. The air gap 2.5 and the block iron core 2.1 are bonded by using high-quality high-resistance Wen Tiexin adhesive, so that the bonding tightness is improved. The column iron core clamping plates are made of stainless steel, and the stainless steel has the performance of non-magnetic conduction and high strength, so that the loss of the reactor can be reduced.

The cavity 2.7 is arranged in the iron core adhesive layer 2.6, so that the weight of the columnar iron core 2 is reduced under the condition of ensuring that the columnar iron core 2 has good electromagnetic effect, and the weight of the whole high-power reactor is reduced.

The turns of the coil 3 are provided with air passages 5, so that the heat dissipation area of the coil 3 is increased.

Specifically, the lower yoke 4 is provided with a foot pad 6, which is convenient for placement. The upper yoke 1 and the lower yoke 4 are fastened into a whole through a second fastener 11, and the lifting lug 8 is arranged on the upper yoke 1 so as to facilitate lifting/lifting after the whole reactor is assembled into a whole. The coil 3 is provided with a connection terminal 7 for facilitating the connection of the primary and secondary sides.

In the magnetic core components and parts manufacturing trade, all use magnetic force to hang transport, assembly when electric reactor, transformer assembly, to the lighter electric reactor of weight, naturally be there not be the problem, but to the electric reactor of post iron core 2 overweight, when actual assembly process, hang the post iron core assembly with magnetic force, because the post iron core is not whole, the piece iron core 2.1 very big probably drops, causes the production incident, the utility model discloses a solve this assembly problem.

Example 2:

referring to fig. 5, the present utility model provides a technical solution, which is basically the same as the embodiment, with a slight difference:

the coil 3 is a structure that a plurality of turns are wound by a plurality of layers of foils 12, an insulating layer 13 is added between adjacent foils 12 of each turn, the insulating layer 13 is made of insulating paper or film, and the plurality of layers of foils 12 are made of a plurality of layers of copper foils or aluminum foils.

In this embodiment, 3 layers of foil 12 are used per turn: the copper foil or aluminum foil is wound in parallel, and an insulating layer 13 is added between 3 layers of copper foil or aluminum foil in each turn, for example, a polyimide film with the thickness of 0.05mm is generally selected for insulation, so that the skin effect is relatively reduced, and the purpose of reducing the loss caused by the skin effect is achieved. The turns are also provided with insulating layers, and insulating paper or film with the thickness of 0.08-0.13 is generally used for insulation.

The present utility model is generally:

the utility model provides a high-power reactor, includes piece iron core 2.1, fastening screw, L stay 2.3, splint 2.4, the air gap of stainless steel, wherein: the block iron cores 2.1 and the air gaps 2.5 are alternately arranged, the top and bottom block iron cores 2.1 are provided with holes through iron core glue, clamping plates 2.4 and screws 2.2 of stainless steel are used for fastening, L-shaped supporting bars 2.3 are fixed at four corners of the column iron cores 2, the whole column iron cores 2 are made into a whole, and after the column iron cores 2 are manufactured, coils 3 are wound on the column iron cores 2.

The reactor is structurally divided into an upper yoke 1, a columnar iron core 2, a coil 3 and a lower yoke 4, wherein in the production and manufacturing process, the columnar iron core 2 (wrapped around the coil 3) needs to be conveyed to the lower yoke 4, then the upper yoke 1 is conveyed to the columnar iron core 2, and finally the upper yoke is tensioned into an integral reactor by using a second fastening piece 11. The whole column iron core 2 is naturally free from problems when being hoisted by using a magnetic crane. The column iron core 2 (before being fixed by the fastening structure 10) is not an integral body, is composed of a plurality of iron cores 2.1 and air gaps 2.5, has no lifting holes, and cannot be lifted and carried by using a common crane, and the column iron core 2 manufactured by the utility model can directly use magnetic force to lift and adsorb the column iron core 2 by using the fastening structure 10 to form a complete column iron core 2 by using a plurality of blocks/sections of the column iron core 2.1, so that the column iron core 2 is carried and assembled, is safe and reliable, and has important significance in the actual production of a heavy reactor (typically 2 tons).

The remaining non-described portions of the present utility model may be the same as, or known in the art or may be implemented using, the prior art, and are not described in detail herein.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A high-power reactor, characterized by comprising:

an iron yoke (9), the iron yoke (9) comprising an upper yoke (1) and a lower yoke (4);

the column iron core (2) is arranged between the upper yoke (1) and the lower yoke (4), the column iron core (2) comprises a plurality of block iron cores (2.1) and clamping plates (2.4), and the block iron cores (2.1) are stacked and placed;

a fastening structure (10), wherein the fastening structure (10) is used for installing and fixing clamping plates (2.4) on the mutually stacked block iron cores (2.1) so that a plurality of block iron cores (2.1) form an integral column iron core (2);

and the coil (3) is wound on the columnar iron core (2).

2. A high-power reactor according to claim 1, wherein the fastening structure (10) comprises a first fastening member (2.2) and holes formed in the topmost and bottommost block cores (2.1), holes formed in the topmost and bottommost positions of the clamping plates (2.4), and holes formed in the first fastening member (2.2) and holes formed in the bottommost positions of the clamping plates (2.4), wherein a plurality of block cores (2.1) are fixed through the clamping plates (2.4) to form a whole column core (2).

3. A high power reactor according to claim 1, characterized in that the four corners of the leg cores (2) are provided with L-shaped stays (2.3).

4. A high power reactor according to claim 1, characterized in that an air gap (2.5) is provided between two adjacent cores (2.1).

5. A high power reactor according to claim 4, characterized in that the air gap (2.5) has a core glue layer (2.6) in it.

6. A high power reactor according to claim 5, characterized in that the core glue layer (2.6) has a cavity (2.7) therein.

7. A high-power reactor according to claim 1, characterized in that the upper yoke (1) is provided with a lifting lug (8), the lower yoke (4) is provided with a foot pad (6), the upper yoke (1) and the lower yoke (4) are fastened into a whole through a second fastening piece (11), and the coil (3) is provided with a connecting terminal (7).

8. A high power reactor according to claim 1, characterized in that the turns of the coil (3) have an air channel (5).

9. A high power reactor according to claim 1, characterized in that the coil (3) is a multi-layer foil (12) wound structure with a plurality of turns, with an insulating layer (13) added between adjacent foils (12) of each turn.

10. A high-power reactor according to claim 9, wherein the insulating layer (13) is made of insulating paper or film, and the multilayer foil (12) is a multilayer copper foil or aluminum foil.