Manufacturing method of triangular yoke structure for shunt reactor
By adopting a triangular yoke structure design, the problem of excessive ineffective cross-sections in circular yoke structures is solved, achieving efficient material utilization and lightweight reactors, and reducing power loss and noise.
Patent Information
- Application Number
- CN202512041560.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-31
- Publication Date
- 2026-02-10
AI Technical Summary
The existing circular yoke structure of parallel reactors has a large number of ineffective cross sections, resulting in low effective utilization of cross sections, low material utilization, large size, large weight, large power loss and high noise.
The triangular yoke structure is adopted. By winding silicon steel strips onto the triangular yoke core, and combining the design of inner and outer yokes and spacers, a triangular yoke structure is formed, which reduces the ineffective cross section and improves the utilization rate of the effective cross section.
It significantly reduces the amount of silicon steel strip used, lowers costs, improves material utilization, and results in smaller size, lighter weight, and reduced power loss and noise.
Smart Images
Figure CN121506735A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of electric reactor production, in particular to a manufacturing method of triangular yoke structure for shunt reactor. BACKGROUND
[0002] The yoke core in the center of the yoke structure of the existing shunt reactor is circular, as shown in the attached drawings of the specification Figure 4 The inner and outer circumferential yokes are wound by silicon steel strips, and three interval blocks are arranged between the inner and outer circumferential yokes, and the three interval blocks are fixedly connected with pull rods, as shown in the attached drawings Figure 5 The circular foot cores are installed on the pull rods, and the foot cores are arranged in three groups and located at the upper end of the yoke structure. During operation, the electromagnetic loop is generated in the yoke structure and the foot cores, and the electromagnetic loop mainly exists in the yoke structure below the foot cores, so that the yoke structure only needs to ensure that the effective cross section of the yoke structure region below the foot cores meets the requirements. However, the existing circular yoke structure has a large amount of invalid cross section, the effective utilization rate of the cross section is low, and the corresponding silicon steel strip also has a low utilization rate and is wasted. In addition, the yoke structure has a large volume and weight. The shunt reactor adopting the circular yoke structure has large power loss and noise. SUMMARY
[0003] The technical problem to be solved by the embodiments of the present application is to provide a manufacturing method of triangular yoke structure for shunt reactor, which solves the problem of a large amount of invalid cross section and low effective utilization rate of the cross section of the circular yoke structure produced by the existing prior art.
[0004] In order to solve the above technical problems, the present application provides a manufacturing method of triangular yoke structure for shunt reactor, comprising: S1, fixing the triangular yoke core on the winding disc of the winding machine; S2, pulling the silicon steel strip through the tension control system to control the tension; S3, winding the silicon steel strip on the triangular yoke core, rotating the yoke core, and winding the silicon steel strip on the yoke core to form the triangular inner circumferential yoke; S4, after the inner circumferential yoke winding is completed, placing three interval blocks on the outer periphery of the inner circumferential yoke, and the three interval blocks correspond to the three corners of the triangular yoke core; S5, winding the silicon steel strip on the outer periphery of the inner circumferential yoke and the three interval blocks to form the triangular outer circumferential yoke; S6, after the outer circumferential yoke winding is completed, fixing the outer circumferential yoke by winding the glass fiber strip on the outer periphery of the outer circumferential yoke.
[0005] In step S1, the winding disc is horizontally arranged, three connecting shafts are fixedly connected on the winding disc, the three connecting shafts are uniformly distributed with the rotating center of the winding disc as the center, and the connecting shafts pass through the core holes of the yoke cores and are fixedly connected with the yoke cores.
[0006] In step S3, the winding tension corresponding to the inner circumferential yoke is set on the tension control system; and in step S5, the winding tension corresponding to the outer circumferential yoke is set on the tension control system.
[0007] In step S4, the inner arc surface of the arc-shaped spacing block is attached to the inner circumferential yoke, and the outer arc surface of the spacing block is attached to the outer circumferential yoke.
[0008] In step S3, when the inner circumferential yoke and the outer circumferential yoke adopt the same silicon steel strip, after the inner circumferential yoke is wound and the spacing block is placed, the silicon steel strip is continuously wound on the outer circumferential yoke; when the inner circumferential yoke and the outer circumferential yoke adopt different silicon steel strips, after the inner circumferential yoke is wound, the silicon steel strip wound on the inner circumferential yoke is cut off and connected with the silicon steel strip wound on the outer circumferential yoke, and then the outer circumferential yoke is continuously wound after the spacing block is placed.
[0009] According to the manufacturing method of the triangular yoke structure for the shunt reactor, a triangular yoke structure for the shunt reactor is manufactured, which comprises a yoke core, an inner circumferential yoke, an outer circumferential yoke and three spacing blocks. The outer circumferential surface of the three corners of the yoke core is provided as a small arc surface, the outer circumferential surface of the three sides of the yoke core is provided as a large arc surface, and the small arc surface and the large arc surface are connected and smoothly transitioned.
[0010] The manufacturing method of the triangular yoke structure for the shunt reactor of the present application, the shunt reactor manufactured by using the triangular yoke structure, significantly reduces the amount of silicon steel strip, saves materials and reduces costs; the invalid cross section of the yoke structure is reduced, the proportion of the effective cross section is high, and the effective utilization rate of the overall cross section is high; under the same capacity of the shunt reactor, the volume is smaller and the weight is lighter, and the design is lightweight. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is a top view of the triangular yoke structure for the shunt reactor of the present application.
[0012] Figure 2 It is a front view of the triangular yoke structure for the shunt reactor of the present application.
[0013] Figure 3 It is a structural schematic view of the yoke core.
[0014] Figure 4 Fig. 1 is a top view of a conventional circular yoke structure for a shunt reactor.
[0015] Figure 5 Fig. 2 is an installation view of a conventional circular yoke structure for a shunt reactor and a foot core.
[0016] Figure 6 Fig. 3 is an installation view of a yoke core of the present application installed on a winding disc through three connecting shafts.
[0017] Figure 7 Fig. 4 is a view of a triangular yoke structure for a shunt reactor according to the present application.
[0018] In the drawings: 1 yoke core; 2 inner peripheral yoke; 3 outer peripheral yoke; 4 spacer block; 11 core hole; 41 mounting hole. DETAILED DESCRIPTION
[0019] In order to make the above objects, features and advantages of the present application more clear and easily understood, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application can be practiced without some or all of these details. In other instances, well known process steps have not been described in detail in order to avoid unnecessarily obscuring the present application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this description, the singular forms "a", "an" and "the" include plural references unless the context clearly dictates otherwise. The term "comprising" (and its variants) as used in this description is used generically that "may include one or more elements", and does not exclude other elements.
[0020] It is to be understood that where the terms "including", "comprising", "having" and the like are used in the specification, these terms are used in the sense of "including but not limited to", "comprising but not limited to" or "having but not limited to" one or more of the listed items. It is not intended to, and can not, exclude other, additional or
[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this description, the singular forms "a", "an" and "the" include plural references unless the context clearly dictates otherwise. The term "comprising" (and its variants) as used in this description is used generically that "may include one or more elements", and does not exclude other elements.
[0022] EMBODIMENT The present application provides a triangular yoke structure for a shunt reactor, as shown in Figures 1-3, including: yoke core 1, inner yoke 2, outer yoke 3, three spacer blocks 4, the yoke core 1 body is an equilateral triangle, the inner yoke 2 is arranged on the outer periphery of the yoke core 1, three spacer blocks 4 are arranged on the outer periphery of the inner yoke 2, and the position, three spacer blocks 4 correspond to the three corners of the yoke core 1, the outer yoke 3 is arranged on the outer periphery of the inner yoke 2 and the spacer block 4.
[0023] The inner yoke 2 is wound by an oriented silicon steel strip, and the outer yoke 3 is wound by a non-oriented silicon steel strip.
[0024] The inner yoke 2 and the outer yoke 3 can also be wound by the same silicon steel strip.
[0025] The silicon steel strip winding the inner yoke 2 is connected together with the silicon steel strip winding the outer yoke 3 to continuously wind. The width of the silicon steel strip is 275mm, that is, the thickness of the outer yoke 3. Figure 2
[0026] The spacer block 4 is an arc block, the spacer block 4 is provided with an inner arc surface and an outer arc surface, the inner arc surface of the spacer block 4 is attached to the inner yoke 2, and the outer arc surface of the spacer block 4 is attached to the outer yoke 3. The spacer block 4 is made of wood.
[0027] A plurality of mounting holes 41 are arranged on the spacer block 4, and a pull rod is inserted into the mounting hole 41 and fixedly connected. The pull rods on the three spacer blocks 4 are used for subsequent production processes and are connected with the foot iron core. When the shunt reactor is working, an electromagnetic loop is generated between the foot iron core and the triangular yoke structure, and the electromagnetic loop mainly exists in the yoke structure below the foot iron core. That is, the area with the three spacer blocks 4 as the center is the main area where the electromagnetic loop exists in the yoke structure, which is the effective cross-sectional area, and the effective cross-sectional area has a high proportion, and the overall cross-sectional utilization rate is high.
[0028] From Figure 1 From the perspective, the three corners of the yoke core 1 are smoothly processed, the outer periphery of the three corners of the yoke core 1 is provided with a small arc surface, the radius of the small arc surface is 100mm, the outer periphery of the three edges of the yoke core 1 is smoothly processed, the outer periphery of the three edges of the yoke core 1 is provided with a large arc surface, the radius of the large arc surface is 634.415mm, and the outer periphery of the three edges and the three corners of the yoke core 1 are smoothly connected. The thickness of the yoke core 1 is 15mm.
[0029] The shunt reactor has various specifications, capacities and sizes, and the above sizes are adjusted according to the specific requirements of the shunt reactor.
[0030] The material of the yoke core 1 is epoxy resin.
[0031] The middle hollow of the yoke core 1 is provided, the yoke structure is subsequently installed in the shunt reactor, the yoke structure is wholly immersed in the insulating oil, and the insulating oil on both sides of the yoke core 1 is exchanged through the middle hollow of the yoke core 1. The yoke core 1 is provided with a core hole 11, and the core hole 11 is used for fixed connection with a winding disc of a winding machine.
[0032] The application provides a manufacturing method of a triangular yoke structure for a shunt reactor. S1, fixing the triangular yoke core on a winding disc of a winding machine; S2, pulling a silicon steel strip to pass through a tension control system to control tension; S3, winding the silicon steel strip on the triangular yoke core, the winding disc of the winding machine drives the yoke core to rotate, and the silicon steel strip is wound on the yoke core to form an inner circumferential yoke in a triangular shape; S4, after the winding of the inner circumferential yoke is completed, three interval blocks are arranged on the outer periphery of the inner circumferential yoke, and the three interval blocks correspond to three angles of the triangular yoke core; S5, winding the silicon steel strip on the outer periphery of the inner circumferential yoke and the three interval blocks to form an outer circumferential yoke in a triangular shape; S6, after the winding of the outer circumferential yoke is completed, the outer circumferential yoke is fixed by winding a glass fiber band on the outer periphery of the outer circumferential yoke, and the winding is completed, as shown in Figure 7 ; S7, applying pressure to the yoke core, high-temperature curing the insulating layer, and enhancing the integrity.
[0033] In step S1, the winding disc is horizontally arranged, as shown in Figure 6 , three connecting shafts are fixedly connected to the winding disc, the three connecting shafts are uniformly distributed with the rotation center of the winding disc as the center, the connecting shafts pass through the core hole 11 of the yoke core 1, and the connecting shafts are fixedly connected with the yoke core 1. The winding disc of the winding machine drives the yoke core 1 to rotate through the three connecting shafts.
[0034] In step S3, the corresponding winding tension of the inner circumferential yoke is set on the tension control system, and the tension control system applies a corresponding tension value to the silicon steel strip; in step S5, the corresponding winding tension of the outer circumferential yoke is set on the tension control system, and the tension control system applies a corresponding tension value to the silicon steel strip.
[0035] In step S4, the inner arc surface of the arc-shaped interval block 4 is attached to the inner circumferential yoke 2, and the outer arc surface of the interval block 4 is attached to the outer circumferential yoke 3 outward.
[0036] In step S3, when the inner circumferential yoke iron and the outer circumferential yoke iron adopt the same silicon steel strip, after the inner circumferential yoke iron is wound and the spacing block is placed, the silicon steel strip is continuously wound on the outer circumferential yoke iron; when the inner circumferential yoke iron and the outer circumferential yoke iron adopt different silicon steel strips, after the inner circumferential yoke iron is wound, the silicon steel strip wound on the inner circumferential yoke iron is cut off and connected with the silicon steel strip wound on the outer circumferential yoke iron, and then the outer circumferential yoke iron is continuously wound after the spacing block is placed.
[0037] In summary, the manufacturing method of the triangular yoke iron structure of the shunt reactor and the shunt reactor adopting the triangular yoke iron structure manufactured by the method can significantly reduce the amount of silicon steel strip, save materials and reduce costs; the invalid cross section of the yoke iron structure is reduced, the proportion of the effective cross section is high, and the effective utilization rate of the overall cross section is high; under the same capacity of the shunt reactor, the shunt reactor has smaller volume and lighter weight, and is lightweight.
[0038] The technical features of the above embodiments can be combined arbitrarily, and in order to make the description simple, not all possible combinations of the technical features in the above embodiments are described, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.
[0039] The above embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application. Therefore, the scope of protection of the present application should be subject to the appended claims.
Claims
1. A method for manufacturing a triangular yoke structure for a parallel reactor, characterized in that, include: S1. Fix the triangular yoke core onto the winding reel of the winding machine; S2. The tension of the pulled silicon steel strip is controlled by a tension control system. S3. Then, the silicon steel strip is wound onto the triangular yoke core. The yoke core rotates, and the silicon steel strip is wound onto the yoke core to form the inner circumferential yoke of the triangle. S4. After the inner circumferential yoke is wound, three spacer blocks are placed on the outer circumference of the inner circumferential yoke. The three spacer blocks correspond to the three corners of the triangular yoke core. S5. A triangular outer circumferential yoke is formed by winding silicon steel strips around the outer circumference of the inner circumferential yoke and the three spacers. S6. After the outer circumferential yoke is wound, use fiberglass tape to wrap around the outer circumference of the outer circumferential yoke to fix it in place.
2. The method for manufacturing the triangular yoke structure for a parallel reactor according to claim 1, characterized in that, In step S1, the winding disc is set horizontally, and three connecting shafts are fixedly connected to the winding disc. The three connecting shafts are evenly distributed with the rotation center of the winding disc as the center. The connecting shafts pass through the core hole (11) of the yoke core (1) and are fixedly connected to the yoke core (1).
3. The method for manufacturing the triangular yoke structure for a parallel reactor according to claim 1, characterized in that, In step S3, the winding tension corresponding to the inner circumferential yoke is set on the tension control system; in step S5, the winding tension corresponding to the outer circumferential yoke is set on the tension control system.
4. The method for manufacturing the triangular yoke structure for a parallel reactor according to claim 1, characterized in that, In step S4, the inner arc surface of the arc-shaped spacer block (4) is attached to the inner circumferential yoke (2), and the outer arc surface of the spacer block (4) is attached to the outer circumferential yoke (3).
5. The method for manufacturing the triangular yoke structure for a parallel reactor according to claim 1, characterized in that, In step S3, when the inner and outer yokes use the same silicon steel strip, after the inner yoke is wound and the spacer is placed, the silicon steel strip is then continuously wound around the outer yoke. When the inner and outer yokes use different silicon steel strips, after the inner yoke is wound, the silicon steel strip wound around the inner yoke is cut and connected to the silicon steel strip wound around the outer yoke. After the spacer is placed, the outer yoke is then continuously wound.
6. The method for manufacturing a triangular yoke structure for a shunt reactor according to claim 1, wherein the manufactured triangular yoke structure for a shunt reactor is characterized in that, include: The yoke core (1), inner circumferential yoke (2), outer circumferential yoke (3), and three spacer blocks (4) are provided. The yoke core (1) is an equilateral triangle with a smooth outer periphery. The inner circumferential yoke (2) is located on the outer periphery of the yoke core (1). The three spacer blocks (4) are located on the outer periphery of the inner circumferential yoke (2) and correspond to the three corners of the yoke core (1). The outer circumferential yoke (3) is located on the outer periphery of the inner circumferential yoke (2) and the spacer blocks (4). The outer circumferential surfaces of the three corners of the yoke core (1) are set as small arc surfaces, and the outer circumferential surfaces of the three sides of the yoke core (1) are set as large arc surfaces. The small arc surfaces and the large arc surfaces are connected and smoothly transitioned.