CN217035356U - Fixing structure of transformer triangular three-dimensional iron core - Google Patents
Fixing structure of transformer triangular three-dimensional iron core Download PDFInfo
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- CN217035356U CN217035356U CN202220717510.0U CN202220717510U CN217035356U CN 217035356 U CN217035356 U CN 217035356U CN 202220717510 U CN202220717510 U CN 202220717510U CN 217035356 U CN217035356 U CN 217035356U
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Abstract
The utility model relates to a fixing structure of a triangular three-dimensional iron core of a transformer, which comprises the three-dimensional iron core and fixing frames respectively arranged at the upper end and the lower end of the three-dimensional iron core, wherein the upper fixing frame and the lower fixing frame are connected by a screw; the three-dimensional iron core comprises three same single-frame iron cores which are adjacent in pairs, an insulating partition is embedded between the adjacent single-frame iron cores in pairs, an insulating sleeve is arranged at the outer corner where the single-frame iron core is adjacent in pairs, the insulating sleeve extends along the height of the iron core, insulating paper is embedded between the outer periphery of the insulating sleeve and the single-frame iron core, and the insulating paper extends outwards from the insulating partition; the screw rod passes through the inside of locating insulation support. The utility model can further increase the insulation separation effect, and is safe and reliable while ensuring the electric distance of the iron core; the screw rod penetrates through the insulating sleeve to be hidden and protected, the service life is longer, and the influence of the external environment is reduced; meanwhile, the insulating sleeve and the iron core are bound into a firm and reliable whole, the structure is more compact, the space is greatly saved, and the installation is convenient.
Description
Technical Field
The utility model relates to the technical field of manufacturing of three-phase three-dimensional transformers, in particular to a fixing structure of a triangular three-dimensional iron core of a transformer.
Background
The iron core of the conventional transformer is fixed by matching the upper and lower fixing frames with the screw rods, the screw rods are in an exposed state, the service life of the transformer is easily influenced by the external environment, the screw rods are close to the iron core, and potential safety hazards such as short circuit exist.
Disclosure of Invention
The utility model aims to solve the problems in the prior art and provides a fixing structure of a triangular three-dimensional iron core of a transformer, which has the advantages of safe and reliable insulation, simple and compact structure and convenience in installation.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the fixing structure of the triangular three-dimensional iron core of the transformer comprises the three-dimensional iron core and fixing frames respectively arranged at the upper end and the lower end of the three-dimensional iron core, wherein the upper fixing frame and the lower fixing frame are connected by a screw rod; the three-dimensional iron core comprises three same single-frame iron cores which are adjacent in pairs, an insulating partition is embedded between the adjacent single-frame iron cores in pairs, an insulating sleeve is arranged at the outer corner where the single-frame iron core is adjacent, the insulating sleeve extends along the height of the iron core, insulating paper is embedded between the outer periphery of the insulating sleeve and the single-frame iron core, and the insulating paper extends outwards from the insulating partition; the screw rod passes through the inside of locating insulation support.
The scheme is further that the insulating sleeve leans against the outer side edge of the insulating partition plate, and the inner side edge of the insulating paper is connected with the insulating partition plate in an adhesion mode.
The scheme is further that the insulating sleeve is a circular tube.
The single-frame iron core is formed by splicing an upper iron core frame and a lower iron core frame, wherein the upper iron core frame is formed by laminating a plurality of silicon steel sheets bent into an inverted U shape according to an internal and external sequence, and the lower iron core frame is formed by laminating a plurality of silicon steel sheets bent into a regular U shape according to an internal and external sequence; the structure of the insulating partition plate matched with the single-frame iron core is also a continuous body formed by butting the upper part and the lower part.
According to the utility model, the insulating partition plate is embedded between the two adjacent single-frame iron cores as a trigger, the insulating sleeve is arranged at the outer corner where the single-frame iron cores are adjacent to each other, and the insulating paper is embedded between the outer periphery of the insulating sleeve and the single-frame iron core, so that the insulating separation effect is further increased, and the insulation is safe and reliable while the electric distance of the iron cores is ensured; the screw rod between the upper fixing frame and the lower fixing frame is arranged in the insulating sleeve in a penetrating mode to obtain hidden protection, the problem that the screw rod of a conventional transformer is exposed is solved, the service life is longer, the influence of the external environment is reduced, and the screw rod and the iron core have good insulating performance; meanwhile, the insulating sleeve and the iron core are bound into a firm and reliable whole, the structure is more compact, the space is greatly saved, the whole cost is reduced, and the installation is convenient.
Description of the drawings:
FIG. 1 is a schematic structural diagram of a preferred embodiment of the present invention;
FIG. 2 is a schematic view of a portion of the structure distribution of the embodiment of FIG. 1;
fig. 3 is a schematic view of a partial structure combination of the embodiment of fig. 1.
The specific implementation mode is as follows:
the conception, specific structure and technical effects of the present invention will be further described in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1, 2 and 3, which are schematic structural views illustrating a preferred embodiment of the present invention, the present invention relates to a fixing structure for a triangular three-dimensional iron core of a transformer, including a three-dimensional iron core and fixing frames 5 respectively disposed at upper and lower ends of the three-dimensional iron core, wherein the upper and lower fixing frames 5 are connected by a screw 6, so that the upper and lower fixing frames 5 clamp and stabilize the three-dimensional iron core and a coil. The three-dimensional iron core comprises three identical single-frame iron cores 1 which are two-phase close to each other, the single-frame iron cores 1 are formed by splicing an upper iron core frame and a lower iron core frame, the upper iron core frame is formed by stacking a plurality of bent inverted-U-shaped silicon steel sheets according to the inside-outside sequence, and the lower iron core frame is formed by stacking a plurality of bent regular-U-shaped silicon steel sheets according to the inside-outside sequence. The iron core with the structure solves the problems that the conventional continuous winding type triangular iron core cannot be sleeved with a coil, so that the coil manufacturing process is complex, and the manufacturing quality is difficult to control. The insulating partition board 2 is made of epoxy plates, and in order to match the structure of the single-frame iron core 1, the insulating partition board 2 is also formed into a continuous body by butting the upper part and the lower part. The utility model also arranges an insulating sleeve 3 at the outer corner of the single-frame iron core 1, the insulating sleeve 3 extends along the height of the iron core, and an insulating paper 4 is embedded between the outer periphery of the insulating sleeve 3 and the single-frame iron core 1, the insulating paper 4 extends outwards from the insulating partition plate 2, the inside of the insulating sleeve 3 provides a space for the screw 6 to pass through, the screw 6 is effectively hidden and protected, the iron core and the screw 6 are further separated by the insulating sleeve 3 and the insulating paper 4, short circuit and other conditions are prevented, and the electrical performance of the iron core is ensured.
In this embodiment, the insulating sleeve 3 is located at a triangular vacancy formed between the two adjacent single-frame cores 1, the insulating sleeve 3 is adjacent to the outer side edge of the insulating partition plate 2, so that the supporting structure is improved, the insulating sleeve 3 is preferably a round tube, materials are conveniently taken, and a large rod penetrating space is obtained. The inner side edge of the insulating paper 4 is connected with the insulating partition board 2 in an adhesion mode, so that the manufacturing is convenient, the insulating paper 4 is flexible, can be changed along with the shape, and reaches the interval insulating sleeve 3 and the single-frame iron core 1, and the insulating sleeve and the iron core can be bound into a firm and reliable whole. In the figure, the two pieces of insulation paper 4 are adhered and extended from the two side surfaces of the insulation partition board 2 respectively, and are in a splayed shape, and the insulation sleeve 3 falls in the splayed shape.
According to the utility model, the insulating partition plate is embedded between the two adjacent single-frame iron cores as a trigger, the insulating sleeve is arranged at the outer corner where the single-frame iron cores are adjacent to each other, and the insulating paper is embedded between the outer periphery of the insulating sleeve and the single-frame iron core, so that the insulating separation effect is further increased, and the electrical distance of the iron cores is ensured, and the insulation is safe and reliable; the screw rod between the upper fixing frame and the lower fixing frame is arranged in the insulating sleeve in a penetrating mode to obtain hidden protection, the problem that the screw rod of a conventional transformer is exposed is solved, the service life is longer, the influence of the external environment is reduced, and the screw rod and the iron core have good insulating performance; meanwhile, the insulating sleeve and the iron core are bound into a firm and reliable whole, the structure is more compact, the space is greatly saved, the whole cost is reduced, and the installation is convenient.
While the preferred embodiments of the utility model have been described in connection with the appended drawings, the utility model is not limited to the exact construction and operation as illustrated and described, and it will be appreciated by those skilled in the art that many equivalent modifications and variations may be made in the embodiments described above, including variations that are within the scope of the utility model as determined by logic analysis, inference, or limited experimentation, without departing from the spirit and scope of the utility model.
Claims (4)
1. Three-dimensional iron core's of transformer fixed knot constructs, including three-dimensional iron core and divide and establish mount (5) of lower extreme on three-dimensional iron core, has screw rod (6) to connect its characterized in that between mount (5) from top to bottom: the three-dimensional iron core comprises three same single-frame iron cores (1) which are adjacent in pairs, an insulating partition plate (2) is embedded between the single-frame iron cores (1) which are adjacent in pairs, an insulating sleeve (3) is arranged at the outer corner where the single-frame iron cores (1) are adjacent in pairs, the insulating sleeve (3) extends along the height of the iron core, insulating paper (4) is embedded between the outer periphery of the insulating sleeve (3) and the single-frame iron cores (1), and the insulating paper (4) extends outwards from the insulating partition plate (2); the screw (6) is arranged in the insulating sleeve (3) in a penetrating way.
2. The fixing structure of the triangular solid core of the transformer according to claim 1, wherein: the insulating sleeve (3) leans against the outer side edge of the insulating partition plate (2), and the inner side edge of the insulating paper (4) is connected with the insulating partition plate (2) in an adhesion mode.
3. The fixing structure of the triangular solid core of the transformer according to claim 1 or 2, wherein: the insulating sleeve (3) is a circular tube.
4. The fixing structure of the triangular solid core of the transformer according to claim 1, wherein: the single-frame iron core (1) is formed by splicing an upper iron core frame and a lower iron core frame, the upper iron core frame is formed by laminating a plurality of bent inverted-U-shaped silicon steel sheets according to the inside-outside sequence, and the lower iron core frame is formed by laminating a plurality of bent regular-U-shaped silicon steel sheets according to the inside-outside sequence; the insulating partition plate (2) is matched with the structure of the single-frame iron core (1) and the upper part and the lower part are butted to form a continuous body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220717510.0U CN217035356U (en) | 2022-03-30 | 2022-03-30 | Fixing structure of transformer triangular three-dimensional iron core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220717510.0U CN217035356U (en) | 2022-03-30 | 2022-03-30 | Fixing structure of transformer triangular three-dimensional iron core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217035356U true CN217035356U (en) | 2022-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220717510.0U Active CN217035356U (en) | 2022-03-30 | 2022-03-30 | Fixing structure of transformer triangular three-dimensional iron core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217035356U (en) |
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2022
- 2022-03-30 CN CN202220717510.0U patent/CN217035356U/en active Active
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