CN-122025400-A - New energy high-capacity amorphous three-dimensional iron core forming and curing device

CN122025400ACN 122025400 ACN122025400 ACN 122025400ACN-122025400-A

Abstract

The invention provides a new energy high-capacity amorphous solid iron core forming and curing device which comprises an upper die assembly, a lower die assembly, a lateral constraint mechanism and a temperature control mechanism, wherein the upper die assembly and the lower die assembly are arranged up and down symmetrically and respectively attached to an upper yoke part and a lower yoke part of an amorphous solid iron core, the lateral constraint mechanism is circumferentially arranged around the iron core and is used for applying uniform radial constraint force to the amorphous solid iron core, and the temperature control mechanism is used for precisely controlling temperature field distribution in a curing process.

Inventors

ZHANG HAO
Cao Tianfei
LIU SUYAO
Ma Ningchao
XIE XIAOJUN
SONG ZICHEN
HU HUAJIE

Assignees

华能陕西发电有限公司
华能陕西发电有限公司新能源分公司
西安热工研究院有限公司
华能陕西榆阳电力有限公司

Dates

Publication Date: 20260512
Application Date: 20260326

Claims (10)

1. The utility model provides a new forms of energy large capacity amorphous solid core shaping solidification equipment which characterized in that includes mould subassembly, lower mould subassembly, side direction restraint mechanism and control by temperature change mechanism, wherein: the upper die assembly and the lower die assembly are arranged in an up-down symmetrical way, and respectively attach an upper yoke part and a lower yoke part of the amorphous solid iron core; The lateral restraining mechanism is circumferentially arranged around the iron core and is used for applying uniform radial restraining force to the amorphous solid iron core; the temperature control mechanism is used for precisely controlling the temperature field distribution in the curing process.
2. The new energy high-capacity amorphous solid core molding and curing device according to claim 1, wherein the upper die assembly and the lower die assembly have the same structure, wherein the upper die assembly comprises a substrate, a flexible buffer layer and an adjustable supporting block, wherein: The adjustable supporting block is arranged on the base plate and used for supporting the amorphous solid iron core; the flexible buffer layer is arranged between the adjustable supporting block and the amorphous solid iron core.
3. The new energy high-capacity amorphous solid core molding and curing device according to claim 2, wherein the adjustable supporting block is mounted on the base plate through a bolt pair.
4. The new energy high-capacity amorphous solid core molding and curing device according to claim 2, wherein a plurality of adjustable supporting blocks are arranged on each core column in the amorphous solid core.
5. The new energy high-capacity amorphous solid core forming and curing device according to claim 1, wherein the lateral constraint mechanism comprises three arc-shaped pressing plates, an annular sliding guide rail and a pre-tightening adjusting bolt, wherein: The annular sliding guide rail is arranged along the circumferential direction of the amorphous solid iron core, three arc-shaped pressing plates are slidably arranged on the annular sliding guide rail and are respectively matched with a three-phase iron core column of the amorphous solid iron core; And each arc-shaped pressing plate is provided with a plurality of pre-tightening adjusting bolts for applying controllable radial pre-tightening force.
6. The new energy high-capacity amorphous solid core molding and curing device according to claim 5, wherein the arc-shaped pressing plate comprises a pressing plate body with an arc-shaped structure, lugs extending inwards are arranged at two ends of the pressing plate body, and the inner outline of each lug wraps and is pressed on a corner connection area between adjacent core columns.
7. The new energy high-capacity amorphous solid iron core forming and curing device according to claim 1, wherein the temperature control mechanism comprises a PID controller, a first temperature control assembly and a second temperature control assembly, wherein the first temperature control assembly is provided with two components which are respectively arranged on an upper die assembly and a lower die assembly, and the second temperature control assembly is arranged on a lateral constraint mechanism; the PID controller is respectively connected with the first temperature control component and the second temperature control component.
8. The new energy high capacity amorphous solid core molding and curing device as defined in claim 7, wherein the first temperature control assembly comprises a first electrical heating wire and a first temperature sensor, wherein the first electrical heating wire and the first temperature sensor are both mounted on a substrate in the upper mold assembly.
9. The new energy high-capacity amorphous solid core molding and curing device according to claim 7, wherein the second temperature control assembly comprises a second electric heating wire and a second temperature sensor, and wherein the second electric heating wire and the second temperature sensor are both installed on an arc-shaped pressing plate in the lateral constraint mechanism.
10. The new energy high capacity amorphous solid core molding and curing apparatus as set forth in claim 1, further comprising a mold release assembly for separating the upper mold assembly and the lower mold assembly.

Description

New energy high-capacity amorphous three-dimensional iron core forming and curing device Technical Field The invention belongs to the technical field of power transformer manufacturing, and particularly relates to a new energy high-capacity amorphous three-dimensional iron core forming and curing device. Background Amorphous alloys are widely used in high efficiency energy saving distribution transformer cores due to their low hysteresis loss and high permeability characteristics. Along with the improvement of the requirements of new energy (such as wind power and photovoltaic) grid connection on high-efficiency and large-capacity transformers, the amorphous alloy three-dimensional winding iron core becomes a research hot spot due to the advantages of symmetrical three-phase magnetic circuits, lower no-load loss and the like. However, the amorphous alloy strip has high hardness and high brittleness, and the geometric precision of the amorphous alloy strip is easy to deform due to external force disturbance after the amorphous alloy strip is wound into a three-dimensional structure, and meanwhile, in the subsequent vacuum pressure impregnation or epoxy resin casting and curing process, if no effective support and restraint exist, the iron core is easy to displace and crack due to resin shrinkage stress or thermal stress, and the performance and reliability of the product are seriously affected. In the prior art, a simple clamp or a universal die is adopted to fix the iron core, but the following problems exist: (1) The three-dimensional iron core cannot adapt to three-dimensional iron cores with different specifications (window height, window width and overlapping thickness); (2) The key parts (such as corners and lap joint areas) of the iron core are lack of local reinforced support; (3) The thermal expansion coefficient of the die is not matched with that of the amorphous alloy, so that additional stress is generated in the curing process; (4) The demoulding is difficult, and the insulating coating on the surface of the amorphous strip is easy to damage. Therefore, a special forming and curing mold which is reasonable in structure, strong in adjustability, good in thermal stability and convenient to demolding is needed, so that the requirement of high-quality manufacturing of the new energy high-capacity amorphous three-dimensional iron core is met. Disclosure of Invention The invention aims to provide a new energy high-capacity amorphous solid iron core forming and curing device, which solves the defects in the prior art. In order to achieve the above purpose, the invention adopts the following technical scheme: the invention provides a new energy high-capacity amorphous solid iron core forming and curing device, which comprises an upper die assembly, a lower die assembly, a lateral restraint mechanism and a temperature control mechanism, wherein: the upper die assembly and the lower die assembly are arranged in an up-down symmetrical way, and respectively attach an upper yoke part and a lower yoke part of the amorphous solid iron core; The lateral restraining mechanism is circumferentially arranged around the iron core and is used for applying uniform radial restraining force to the amorphous solid iron core; the temperature control mechanism is used for precisely controlling the temperature field distribution in the curing process. Preferably, the upper die assembly and the lower die assembly have the same structure, wherein the upper die assembly comprises a substrate, a flexible buffer layer and an adjustable supporting block, wherein: The adjustable supporting block is arranged on the base plate and used for supporting the amorphous solid iron core; the flexible buffer layer is arranged between the adjustable supporting block and the amorphous solid iron core. Preferably, the adjustable support block is mounted on the base plate by a bolt pair. Preferably, the adjustable supporting blocks are provided in plurality, each iron core column in the amorphous solid iron core Preferably, the lateral restraint mechanism comprises three arc-shaped pressing plates, an annular sliding guide rail and a pre-tightening adjusting bolt, wherein: The annular sliding guide rail is arranged along the circumferential direction of the amorphous solid iron core, three arc-shaped pressing plates are slidably arranged on the annular sliding guide rail and are respectively matched with a three-phase iron core column of the amorphous solid iron core; And each arc-shaped pressing plate is provided with a plurality of pre-tightening adjusting bolts for applying controllable radial pre-tightening force. Preferably, the arc-shaped pressing plate comprises a pressing plate body with an arc-shaped structure, lugs extending towards the inner sides are arranged at two ends of the pressing plate body, and the inner outline of each lug wraps and is pressed on a corner connection area between adjacent iron core columns. Preferably, the