CN212209171U - Open type three-dimensional roll iron core - Google Patents

Abstract

The utility model discloses an open type three-dimensional rolled iron core, which comprises a rolled iron core element, a heat-shrinkable belt, an iron core column, a joint plate and an arc part, one side of the joint plate is fixedly provided with an iron core rolling element which is formed by integrally forming and combining an arc part and a straight part respectively, the iron core rolling element is fixedly bound by a PET binding belt with high heat-resistant strength, the iron core columns are fixedly arranged at the intersection of every two of the iron core rolling elements, the grounding sheets are fixedly arranged on the surface of one side of each iron core rolling element, the number of the grounding sheets is three, and wiring holes are formed in one end of each grounding sheet, through adopting combination board and pyrocondensation area concatenation winding combination, the effectual frame iron core element of rolling up has avoided the extremely inhomogeneous problem of internal stress between its yoke and the joint portion between the vertical core post, prevents to lead to the iron core to take place to warp easily in powerful electromagnetic field.

Description

Open type three-dimensional roll iron core

Technical Field

The utility model relates to an electrical equipment technical field specifically is an iron core is rolled up to open type solid.

Background

The transformer is an important electrical appliance used in a large number of power distribution systems, it completes the economic transmission, distribution and safe use of electric power by increasing or decreasing the voltage, along with the rapid development of the electrical industry, the functional requirements of the power transformer such as voltage, capacity and the like and the performance requirements of no-load, temperature rise, insulation, service life and the like are higher and higher, and one of the core technologies related to the function and performance improvement is that the iron core of the transformer is divided into a laminated iron core and a winding iron core, the latter is made of thin high-permeability cold-rolled silicon steel sheets, the advantage of low eddy current loss of the thin sheets is fully exerted, the transformer has the characteristics of small volume, low loss and low noise compared with the laminated iron core, the stereo coiled iron core transformer has more excellent performance than the plane coiled iron core transformer, and is formed by combining three frame-type coiled iron core elements, the combined parts of the three frame-type coiled iron core elements, the inner winding and the outer winding are respectively sleeved on the three core columns in the same core mode, the appearance of the wound iron core, particularly the appearance of the three-dimensional wound iron core, provides a new direction for the development of a new generation of power transformers, has obvious advantages compared with the traditional iron core, particularly has more advantages in the aspects of energy conservation and environmental protection, however, a high-temperature core area still exists in the iron core, the temperature of the iron core is difficult to reduce, the technology is not mature, and further development is needed.

The inner ring of the existing iron core is a rectangular longitudinal section, four corners are approximately circular when the iron core is rolled outside, the section of an iron core column is rectangular, stepped or polygonal, and is not true circular, and the internal stress of the frame type rolled iron core element between the cross yoke and the vertical core column is extremely uneven, so that the iron core is easy to deform in a strong electromagnetic field.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an iron core is rolled up to open type is three-dimensional to solve the problem that proposes among the above-mentioned background art.

The utility model provides an iron core is rolled up to open type solid, includes the splice plate, one side fixed mounting of splice plate has a roll iron core component, it is formed by circular arc portion and the combination of sharp portion integrated into one piece respectively to roll up the iron core component, two liang of crossing and enclose through the pyrocondensation area intertwine between the roll iron core component and close the connection, roll up the equal fixed mounting of iron core post of two liang of crossing department of iron core component.

As a further aspect of the present invention: the utility model discloses a roll up iron core component, including roll up iron core component, roll up iron core component's one side fixed surface and install the grounding piece, the quantity of grounding piece is three, and the wiring hole has all been seted up to the one end of grounding piece.

As a further aspect of the present invention: the iron core rolling element is formed by overlapping and rolling a plurality of layers of butt joint type iron core sheet materials with elasticity, and the openings of the iron core sheet materials of each layer are arranged in a staggered mode.

As a further aspect of the present invention: the iron core column and the iron core rolling element are connected together in a wrapping and covering mode through a heat-shrinkable belt, and the cross section of the iron core column is in an approximate-circle shape.

As a further aspect of the present invention: the iron roll core element is fixedly bound by a PET binding belt with high heat-resisting strength.

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

this roll up iron core adopts combination board and pyrocondensation area concatenation winding connection combination, and the effectual frame of having avoided rolls up the iron core component at its yoke and erects the extremely inhomogeneous problem of internal stress between the joint portion between the core post, prevents to lead to the iron core to take place easily and warp in powerful electromagnetic field.

Drawings

Fig. 1 is a front view of an open type three-dimensional roll core.

Fig. 2 is a schematic view of a part of a roll core element of an open type three-dimensional roll core.

Fig. 3 is a top view of an open type three-dimensional iron core roll.

Shown in the figure: 1. a wiring hole; 2. a ground plate; 3. a joint plate; 4. a circular arc portion; 5. a straight portion; 6. a heat-shrinkable tape; 7. a coiled core element; 8. a core limb.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, in an embodiment of the present invention, an open type three-dimensional iron core is provided, which includes a joint plate 3, a rolled iron core element 7 is fixedly installed on one side of the joint plate 3, the rolled iron core element 7 is formed by integrally forming and combining an arc portion 4 and a straight portion 5, the rolled iron core element 7 is fixedly bound by a PET binding tape with high heat resistance strength, so as to effectively avoid the problem of non-uniform internal stress between the frame-type rolled iron core element 7 at the joint portion between the horizontal yoke and the vertical core column, thereby preventing the iron core from easily deforming in a strong electromagnetic field, the iron core columns 8 are fixedly installed at the intersection of the rolled iron core element 7, and the new open type three-dimensional rolled iron core structure and the inner cooling design of the innermost hot spot of the rolled iron core are adopted, thereby significantly improving the cooling and heat dissipation effects of the transformer rolled iron core, and greatly increasing the service, thoroughly eliminated the inside hottest point of iron core post 8, overcome the current 8 kernels of solid iron core post of rolling up the iron core and be difficult to refrigerated defect, make and roll up the iron core temperature and can obtain effectual reduction, one side fixed surface of rolling up iron core component 7 installs grounding piece 2, grounding piece 2's quantity is three, and grounding piece 2's one end has all been seted up wiring hole 1, it has elastic butt joint formula iron core sheet material lap by the multilayer to roll up iron core component 7 and forms, and the opening of every layer of iron core sheet material sets up crisscross each other, iron core post 8 links together through 6 winding cladding of pyrocondensation area between the iron core post 7, and the cross-section of iron core post 8 is the shape of approximate circle.

The utility model discloses a theory of operation is: this roll up iron core adopts new-type opening three-dimensional roll iron core structure and eliminates the interior cold-packed design of rolling up the innermost focus of iron core, the cooling and the radiating effect of transformer roll iron core have been shown to be improved, greatly increased rolls up the life of iron core, the inside hottest spot of iron core post 8 has been eliminated, it is difficult to refrigerated defect to overcome the current solid iron core post 8 kernel of rolling up the iron core, the messenger rolls up the iron core temperature and can obtain effectual reduction, this roll iron core adopts splice plate 3 and 6 concatenation winding connection combinations in pyrocondensation area simultaneously, the effectual frame of having avoided rolls up the extremely inhomogeneous problem of internal stress between the joint of iron core component 7 between its yoke and perpendicular post, prevent to lead to the iron core to take place to warp easily in powerful electromagnetic field.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (5)

1. An open type three-dimensional roll iron core, which comprises a joint plate (3), and is characterized in that: one side fixed mounting of splice plate (3) has a book iron core component (7), it is formed by the combination of circular arc portion (4) and sharp portion (5) integrated into one piece respectively to roll up iron core component (7), it all fixed mounting has iron core post (8) to roll up iron core component (7) two liang of crossing department.

2. The open type three-dimensional roll iron core according to claim 1, characterized in that: one side fixed surface of rolling up iron core component (7) installs ground lug (2), the quantity of ground lug (2) is three, and wiring hole (1) have all been seted up to the one end of ground lug (2).

3. The open type three-dimensional roll iron core according to claim 1, characterized in that: the iron core rolling element (7) is formed by overlapping and rolling a plurality of layers of butt joint type iron core sheet materials with elasticity, and the openings of the iron core sheet materials of each layer are arranged in a staggered mode.

4. The open type three-dimensional roll iron core according to claim 1, characterized in that: the iron core column (8) and the iron core rolling element (7) are connected together in a winding and cladding mode through a heat-shrinkable belt (6), and the section of the iron core column (8) is in an approximate-circle shape.

5. The open type three-dimensional roll iron core according to claim 1, characterized in that: the iron roll core element (7) is fixedly bound by a PET binding belt with high heat-resistant strength.

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