Dry-type iron core reactor insulation structure
By using insulating components, including circular epoxy plates and pads in dry iron core reactors, the problems of large size and high cost caused by excessive insulation distance are solved, and stability and cost reduction are achieved.
Patent Information
- Application Number
- CN202422397325.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-30
AI Technical Summary
The insulation distance design of existing dry iron core reactors is too high, resulting in large size, unstable center of gravity and high cost.
Insulating components are adopted, including a circular epoxy plate, a first pad and a second pad, which are fixed to the inner side of the circular fixing frame by bolt connections, increasing composite insulation, reducing product height, and reducing the use of core silicon steel sheets.
The product height size is reduced, the stability is improved, and the use of core silicon steel sheets is reduced, thereby reducing costs.
Smart Images
Figure CN223140545U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of insulation structures of power systems, and specifically to an insulation structure of a dry-type iron-core reactor. Background Technique
[0002] A reactor, also known as an inductor, is widely used in circuits. Because of the electromagnetic induction effect in the circuit, the reactor can impede the change of current. According to different structures and cooling media, reactors can be divided into various forms, and the relatively common one is the dry-type iron-core reactor.
[0003] When used in parallel, the dry-type iron-core reactor can be used to compensate the capacitive current of the line and reduce the latent supply current during a system ground fault, which is beneficial to eliminating the self-excitation of the generator.
[0004] However, for existing dry-type iron-core reactors, due to the excessively high insulation level requirements of the products, the insulation distance is taken to be large during product design, resulting in too high spacers, an increase in the number of yoke silicon steel sheets used, a relatively large overall body size, a high center of gravity and poor stability, and a relatively high cost.
[0005] In view of the above problems, we provide an insulation structure of a dry-type iron-core reactor to solve the problems mentioned above. Content of the Utility Model
[0006] The purpose of the utility model is to provide an insulation structure of a dry-type iron-core reactor to solve the problems in the background technique.
[0007] To achieve the above purpose, the utility model provides the following technical solutions:
[0008] An insulation structure of a dry-type iron-core reactor includes a circular fixing frame. A plurality of long strip fixing plates are installed around the outside of the circular fixing frame. The long strip fixing plates are fixedly connected to the circular fixing frame through first bolts and second bolts. An insulation component is installed inside the circular fixing frame.
[0009] On the basis of the above technical solutions, the utility model also provides the following optional technical solutions:
[0010] In an optional solution: the circular fixing frame includes a first annular plate and a second annular plate. The second annular plate is arranged parallel to the lower part of the first annular plate. The first annular plate and the second annular plate are connected by a plurality of long strip fixing plates.
[0011] In an alternative embodiment: The insulation assembly includes an insulation mechanism, a first spacer, and a second spacer. There are multiple first spacers disposed around the inner side of the first annular plate, and multiple second spacers disposed around the inner side of the second annular plate. An insulation mechanism is provided between the first spacer and the second spacer. On one side of the first spacer and the second spacer, there are first bolt holes and second bolt holes corresponding to the first bolt and the second bolt. The insulation assembly is fixed to the inner side of the circular fixing frame by connecting the first bolt and the second bolt with the first bolt holes and the second bolt holes.
[0012] In an alternative embodiment: The diameter of the first annular plate is the same as the diameter of the second annular plate, and the positions of the first annular plate and the second annular plate are symmetrically arranged up and down.
[0013] In an alternative embodiment: The insulation mechanism is a circular epoxy board, and the circular epoxy board is annular and fixedly connected between the first spacer and the second spacer.
[0014] In an alternative embodiment: On the surface of the first spacer and the second spacer close to the circular fixing frame, there are also a first fixing plate and a second fixing plate for further strengthening.
[0015] In an alternative embodiment: There are four first spacers and four second spacers respectively, and they are evenly distributed on the upper and lower surfaces of the circular epoxy board, and the positions of the first spacers and the second spacers correspond to each other up and down.
[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0017] The present utility model increases the composite insulation of the product through the insulation assembly, reduces the height dimension of the product, increases the overall stability of the product, reduces the usage quantity of the core silicon steel sheet material, and thus reduces the product cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic structural diagram of one side of the present utility model.
[0019] Figure 2 It is a schematic structural diagram of the other side of the present utility model
[0020] Figure 3 It is a schematic structural diagram of the external fixing mechanism of the present utility model.
[0021] Figure 4 It is a schematic structural diagram of the insulation assembly of the present utility model.
[0022] Annotation of reference numerals: 100 First annular plate, 101 Second annular plate, 102 Long strip fixing plate, 103 First bolt, 104 Second bolt, 105 First fixing plate, 106 Second fixing plate, 200 Insulating component, 201 Circular epoxy board, 202 First cushion block, 203 Second cushion block, 204 First bolt hole, 205 Second bolt hole. Detailed implementation mode
[0023] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments.
[0024] In one embodiment, as Figures 1 - 4 shown, a dry-core reactor insulation structure includes: a circular fixing frame, and a plurality of long strip fixing plates 102 are installed around the outside of the circular fixing frame. The long strip fixing plates 102 are fixedly connected to the circular fixing frame through the first bolt 103 and the second bolt 104, and an insulating component 200 is installed inside the circular fixing frame;
[0025] During use, the circular fixing frame is used to fix the insulating component, and the insulating component is used to provide an insulating effect for the equipment.
[0026] In one embodiment, as Figures 1 - 3 shown, the circular fixing frame includes a first annular plate 100 and a second annular plate 101. A parallel second annular plate 101 is provided directly below the first annular plate 100. The first annular plate 100 and the second annular plate 101 are connected by a plurality of long strip fixing plates 102. The diameters of the first annular plate 100 and the second annular plate 101 are the same, and the positions of the first annular plate 100 and the second annular plate 101 are symmetric up and down;
[0027] During use, the long strip fixing plates 102 are used to connect and reinforce the first annular plate 100 and the second annular plate 101, and the first annular plate 100 and the second annular plate 101 are jointly used to fix the insulating component 200.
[0028] In one embodiment, as Figure 1 、 Figure 2 and Figure 4As shown, the insulation assembly 200 includes an insulation mechanism, a first spacer 202 and a second spacer 203. There are four first spacers 202 which are arranged around the inner side of the first annular plate 100. There are four second spacers 203 which are arranged around the inner side of the second annular plate 101. An insulation mechanism is arranged between the first spacer 202 and the second spacer 203. The insulation mechanism is a circular epoxy board 201. The circular epoxy board 201 is annular and fixedly connected between the first spacer 202 and the second spacer 203. The first spacer 202 and the second spacer 203 are evenly distributed on the upper and lower surfaces of the circular epoxy board 201. The positions of the first spacer 202 and the second spacer 203 correspond to each other vertically. On one side of the first spacer 202 and the second spacer 203, there are a first bolt hole 204 and a second bolt hole 205 corresponding to the first bolt 103 and the second bolt 104. The insulation assembly 200 is fixed inside the circular fixing frame by connecting the first bolt 103 and the second bolt 104 with the first bolt hole 204 and the second bolt hole 205. On the surface of the first spacer 202 and the second spacer 203 close to the circular fixing frame, there are also a first fixing plate 105 and a second fixing plate 106 for further strengthening. The first fixing plate 105 is fixed on the surface of the first spacer 202 by connecting with the first bolt 103. The second fixing plate 106 is fixed on the surface of the second spacer 203 by connecting with the second bolt 104.
[0029] During use, the first spacer 202 and the second spacer 203 are fixed by connecting two bolts and two bolt holes. The first fixing plate 105 and the second fixing plate 106 further fix the first spacer 202 and the second spacer 203. The first spacer 202 and the second spacer 203 are used to fix the circular epoxy board 201 and support the circular fixing frame. The first spacer 202 and the second spacer 203 are also used to bear the weight of the upper yoke of the dry-type iron-core reactor. The circular epoxy board 201 is used to increase the composite insulation of the product.
[0030] When the overall structure is in use, the insulation assembly 200 is fixed and its internal structure is prevented from being misaligned by connecting the first bolt 103 and the second bolt 104 with the long strip fixing plate 102, the circular fixing frame, the first fixing plate 105, the second fixing plate 106 and the insulation assembly 200 in sequence. The first spacer 202 and the second spacer 203 cooperate to bear the weight of the upper yoke of the dry-type iron-core reactor and fix the circular epoxy board 201. The first spacer 202 and the second spacer 203 also cooperate to support the circular fixing frame. The circular epoxy board 201 is used to increase the composite insulation of the product and improve the insulation performance of the product.
[0031] The above embodiments disclose an insulation structure for a dry-type iron-core reactor, in which the composite insulation of the product is increased through the insulation assembly, the height dimension of the product is reduced, the overall stability of the product is increased, the usage amount of the iron core silicon steel sheet material is reduced, thereby reducing the product cost, and the problems raised in the above background art are solved.
[0032] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims
1. A dry-type iron-core reactor insulation structure, comprising: A circular fixing frame, on the outer side of which a plurality of long strip fixing plates (102) are installed in a surrounding manner, and the long strip fixing plates (102) are fixedly connected to the circular fixing frame through a first bolt (103) and a second bolt (104); It is characterized in that an insulating component (200) is installed on the inner side of the circular fixing frame.
2. The insulation structure of a dry-type iron-core reactor according to claim 1, wherein: The circular fixing frame includes a first annular plate (100) and a second annular plate (101). There is a parallel second annular plate (101) directly below the first annular plate (100), and the first annular plate (100) and the second annular plate (101) are connected by a plurality of long strip fixing plates (102).
3. The dry-type iron-core reactor insulation structure according to claim 1, wherein: The insulating component (200) includes an insulating mechanism, a first cushion block (202) and a second cushion block (203). There are a plurality of first cushion blocks (202) which are arranged in a surrounding manner on the inner side of the first annular plate (100), and there are a plurality of second cushion blocks (203) which are arranged in a surrounding manner on the inner side of the second annular plate (101). An insulating mechanism is arranged between the first cushion block (202) and the second cushion block (203). On one side of the first cushion block (202) and the second cushion block (203), there are a first bolt hole (204) and a second bolt hole (205) corresponding to the first bolt (103) and the second bolt (104). The insulating component (200) is fixed on the inner side of the circular fixing frame by connecting the first bolt (103) and the second bolt (104) with the first bolt hole (204) and the second bolt hole (205).
4. The dry-type iron-core reactor insulation structure according to claim 2, characterized in that: The diameter of the first annular plate (100) is the same as that of the second annular plate (101), and the positions of the first annular plate (100) and the second annular plate (101) are symmetric up and down.
5. The insulation structure of a dry-type iron-core reactor according to claim 3, characterized in that: The insulating mechanism is a circular epoxy board (201), and the circular epoxy board (201) is annular and fixedly connected between the first cushion block (202) and the second cushion block (203).
6. The dry-type iron-core reactor insulation structure according to claim 3, characterized in that: On the surface of the first cushion block (202) and the second cushion block (203) close to the circular fixing frame, there are also a first fixing plate (105) and a second fixing plate (106) for further strengthening them.
7. The insulation structure of a dry-type iron-core reactor according to claim 3, characterized in that: There are four first cushion blocks (202) and four second cushion blocks (203) respectively, and they are evenly distributed on the upper and lower surfaces of the circular epoxy board (201), and the positions of the first cushion block (202) and the second cushion block (203) correspond to each other up and down.