CN219303466U - Electromagnetic shielding structure of power transformer - Google Patents
Electromagnetic shielding structure of power transformer Download PDFInfo
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- CN219303466U CN219303466U CN202320237601.9U CN202320237601U CN219303466U CN 219303466 U CN219303466 U CN 219303466U CN 202320237601 U CN202320237601 U CN 202320237601U CN 219303466 U CN219303466 U CN 219303466U
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Abstract
The utility model discloses an electromagnetic shielding structure of a power transformer, which relates to the technical field of transformers and comprises a fixed plate, wherein three shielding plates are sequentially arranged on the front surface of the fixed plate, a lower shielding frame is arranged on the front surface of the fixed plate and below the three shielding plates, an upper shielding frame is arranged on the front surface of the fixed plate and above the three shielding plates, protection plates are arranged in front of the lower shielding frame, the upper shielding frame and the three shielding plates, bearing columns are arranged between the fixed plate and the protection plates and at the lower ends of the three shielding plates, limit columns are arranged between the fixed plate and the protection plates and at the lower ends of the upper shielding frames, the upper shielding frame is spliced and connected with the limit columns, the multilayer structure is split, when one of the multilayer structure is damaged, the inner structure can be split through the upper shielding frame and the shielding plates which are arranged quickly, the multilayer structure is convenient to split, and the multilayer structure is convenient to overhaul and replace.
Description
Technical Field
The utility model relates to the technical field of transformers, in particular to an electromagnetic shielding structure of a power transformer.
Background
When the transformer is operated under load, leakage magnetic flux forms a loop through steel structural members such as clamping pieces, oil tanks and the like, and considerable stray loss is generated and overheating of the structural members is possible. In order to reduce stray loss of steel structural members such as an oil tank and inhibit local overheating of the steel structural members, a method for installing an oil tank magnetic shielding is generally adopted at present, namely a plurality of silicon steel sheets with certain width are stacked to be a specified thickness, a plurality of rows of magnetic shielding is manufactured and pressed and installed on the wall of the oil tank, and then leakage magnetic flux passes through the magnetic shielding with higher magnetic conductivity and smaller magnetic resistance, so that the stray loss in the oil tank is obviously reduced. At present, the conventional oil tank magnetic shielding taking a silicon steel sheet as a main material is mostly composed of a multi-layer structure, the multi-layer structure is fixedly connected, and when one of the multi-layer structure is damaged, the multi-layer structure is inconvenient to split, so that the overhaul and the replacement are inconvenient.
Disclosure of Invention
The utility model aims to provide an electromagnetic shielding structure of a power transformer, which aims to solve the problems that the conventional oil tank magnetic shielding taking a silicon steel sheet as a main material in the background art is mostly composed of a multi-layer structure and fixedly connected with each other, and when one of the multi-layer structure is damaged, the multi-layer structure is inconvenient to split, so that the maintenance and the replacement are inconvenient.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a power transformer electromagnetic shield structure, includes the fixed plate, the front surface of fixed plate is equipped with three shield plate in proper order, the front surface of fixed plate just is three the below of shield plate is equipped with down the shielding frame, the front surface of fixed plate just is three the top of shield plate is equipped with the shielding frame, down the shielding frame and three the place ahead of shield plate is equipped with the guard plate, the fixed plate with between the guard plate and at three the lower extreme of shield plate all is equipped with the spandrel post, the fixed plate with between the guard plate and be in the lower extreme of going up the shielding frame is equipped with spacing post, go up the shielding frame with spacing post is pieced together and is connected.
Preferably, the lower shielding frame is of a frame structure with an open upper end, the upper shielding frame is of a frame structure with an open lower end, the lower shielding frame is correspondingly arranged with the upper shielding frame, fixing columns are arranged between the fixing plates and the protection plates, the upper end and the inner side of the lower shielding frame and the inner side of the upper shielding frame respectively, and the lower shielding frame and the upper shielding frame penetrate through the fixing columns, the fixing plates and the protection plates through bolts.
Preferably, the fixing plate with between the guard plates and three the inside upper end of shielding plate runs through and is equipped with the erection column, three the shielding plate passes through the bolt runs through the erection column with the fixing plate reaches guard plate fixed connection, three the upper end of shielding plate all is equipped with the hoist and mount hole site.
Preferably, the positions of the lower ends of the three shielding plates corresponding to the bearing columns are provided with bearing grooves, and the bearing columns are propped against the inside of the bearing grooves.
Preferably, shielding seams are reserved between the shielding plate and the lower shielding frame, between the shielding plate and the upper shielding frame, and between the shielding plate and the upper shielding frame.
Compared with the prior art, the utility model has the beneficial effects that: on the conventional oil tank magnetic shielding structure basis of constituteing by multilayer structure with the silicon steel sheet as the main material, split multilayer structure, set up spandrel post and spacing post on carrying out fixed connection's basis between the multilayer structure through the bolt, but go up shielding frame and shield plate activity split setting, when one of them takes place to damage, can split inner structure through last shielding frame and the shield plate that quick detach set up, convenient split multilayer structure, convenient maintenance is changed.
Drawings
FIG. 1 is an isometric cross-sectional view of a body structure of the present utility model;
FIG. 2 is a front cross-sectional view of the body structure of the present utility model;
FIG. 3 is a schematic front view of the main structure of the present utility model;
FIG. 4 is a right side cross-sectional view of the body structure of the present utility model;
fig. 5 is a right-side view schematically showing the main structure of the present utility model.
In the figure: 1-fixed plate, 2-shielding plate, 3-lower shielding frame, 4-upper shielding frame, 5-protection plate, 6-bearing column, 7-limit column, 8-fixed column, 9-installation column, 10-hoisting hole site, 11-bearing groove and 12-shielding seam.
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.
Referring to fig. 1-5, the utility model provides an electromagnetic shielding structure of a power transformer, which comprises a fixed plate 1, wherein three shielding plates 2 are sequentially arranged on the front surface of the fixed plate 1, a lower shielding frame 3 is arranged on the front surface of the fixed plate 1 and below the three shielding plates 2, an upper shielding frame 4 is arranged on the front surface of the fixed plate 1 and above the three shielding plates 2, a protection plate 5 is arranged in front of the lower shielding frame 3, the upper shielding frame 4 and the three shielding plates 1, a bearing column 6 is arranged between the fixed plate 1 and the protection plate 5 and at the lower ends of the three shielding plates 2, a limit column 7 is arranged between the fixed plate 1 and the protection plate 5 and at the lower end of the upper shielding frame 4, and the upper shielding frame 4 is spliced and connected with the limit column 7.
During the use, through spandrel post 6 and spacing post 7 with guard plate 5 fixed the place ahead at fixed plate 1, support shield plate 2 through spandrel post 6, splice shield plate 2 and insert and set up between guard plate 5 and fixed plate 1, support upper shield frame 4 through spacing post 7, splice upper shield frame 4 and insert and set up guard plate 5 and fixed plate 1 and in the top of shield plate 2, fix down shield frame 3 through the bolt and set up between guard plate 5 and fixed plate 1 and in the below of shield plate 2, when needs change inside shield plate 2, can be swift dismantle upper shield frame 4, make things convenient for the dismantlement of shield plate 2 to change.
The lower shielding frame 3 is an upper end open frame structure, the upper shielding frame 4 is a lower end open frame structure, the lower shielding frame 3 and the upper shielding frame 4 are correspondingly arranged, the fixing plate 1 and the upper shielding frame 4 are fixedly arranged between the shielding plate 5 and the fixing plate 5, the upper end and the inner side of the lower shielding frame 3 and the inner side of the upper shielding frame 4 are respectively provided with a fixing column 8, the lower shielding frame 3 and the upper shielding frame 4 penetrate through the fixing columns 8 and the fixing plate 1 and the shielding plate 5 through bolts, the shielding plate 2 can be arranged between the lower shielding frame 3 and the upper shielding frame 4 through the upper end open lower shielding frame 3 structure and the lower end open upper shielding frame 4 structure, the lower shielding frame 3 and the upper shielding frame 4 are fixedly arranged between the shielding plate 5 and the fixing plate 1 through the fixing columns 8, and when the upper shielding frame 4 needs to be disassembled, the fixing columns 8 for fixing the upper shielding frame 4 are loosened.
The utility model discloses a shielding plate, including fixed plate 1, guard plate 5, shield plate 2, mounting post 9, shield plate 2, hoisting hole site 10, mounting post 9, hoisting hook, hoisting hole site 10, shielding plate 2 is fixed to be set up between guard plate 5 and fixed plate 1 through mounting post 9, when need dismantle shielding plate 2, loosen the mounting post 9 on the shielding plate 2 that corresponds can, later through with the last hoist and mount hook and the hoist and mount hole site 10 hook joint on the hoisting equipment, can hoist and mount the dismantlement to shielding plate 2.
The lower extreme of three shield plate 2 with bearing post 6 corresponds the position and has all been seted up bearing groove 11, bearing post 6 supports the inside in bearing groove 11, through set up bearing groove 11 in the lower extreme of shield plate 2, through the joint between bearing groove 11 and the bearing post 6, supports shield plate 2 through bearing post 6.
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 (5)
1. An electromagnetic shielding structure of a power transformer, which is characterized in that: including fixed plate (1), the front surface of fixed plate (1) is equipped with three shield plate (2) in proper order, the front surface of fixed plate (1) just is three the below of shield plate (2) is equipped with down shield frame (3), the front surface of fixed plate (1) just is three the top of shield plate (2) is equipped with shield frame (4), lower shield frame (3) shield frame (4) and three the place ahead of shield plate (2) is equipped with guard plate (5), fixed plate (1) with between guard plate (5) and at three the lower extreme of shield plate (2) all is equipped with spandrel post (6), fixed plate (1) with between guard plate (5) just the lower extreme of going up shield frame (4) is equipped with spacing post (7), go up shield frame (4) with spacing post (7) piece together and insert and be connected.
2. An electromagnetic shielding structure for a power transformer according to claim 1, wherein: the lower shielding frame (3) is of a frame structure with an upper end being open, the upper shielding frame (4) is of a frame structure with a lower end being open, the lower shielding frame (3) is correspondingly arranged with the upper shielding frame (4), the fixing plate (1) is arranged between the protection plates (5) and is arranged at the upper end and the inner side of the lower shielding frame (3) and the inner side of the upper shielding frame (4) respectively, fixing columns (8) are arranged at the inner side of the lower shielding frame (3) and the upper shielding frame (4), and the fixing columns (8) are penetrated through by bolts and fixedly connected with the fixing plate (1) and the protection plates (5).
3. An electromagnetic shielding structure for a power transformer according to claim 1, wherein: the utility model discloses a shielding plate, including fixed plate (1), guard plate (5), shield plate (2), mounting column (9) are run through to inside upper end of just three between fixed plate (1) and guard plate (5) shield plate (2) are equipped with in the run through of inside upper end, three shield plate (2) pass through the bolt mounting column (9) with fixed plate (1) and guard plate (5) fixed connection, three the upper end of shield plate (2) all is equipped with hoist and mount hole site (10).
4. An electromagnetic shielding structure for a power transformer according to claim 1, wherein: bearing grooves (11) are formed in the positions, corresponding to the bearing columns (6), of the lower ends of the three shielding plates (2), and the bearing columns (6) are propped against the inside of the bearing grooves (11).
5. An electromagnetic shielding structure for a power transformer according to claim 1, wherein: shielding seams (12) are reserved between the shielding plate (5) and the lower shielding frame (3), between the upper shielding frame (4) and between the shielding plates (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320237601.9U CN219303466U (en) | 2023-02-17 | 2023-02-17 | Electromagnetic shielding structure of power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320237601.9U CN219303466U (en) | 2023-02-17 | 2023-02-17 | Electromagnetic shielding structure of power transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219303466U true CN219303466U (en) | 2023-07-04 |
Family
ID=86957520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320237601.9U Active CN219303466U (en) | 2023-02-17 | 2023-02-17 | Electromagnetic shielding structure of power transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219303466U (en) |
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2023
- 2023-02-17 CN CN202320237601.9U patent/CN219303466U/en active Active
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