Power transformer iron core fixing structure
By adopting the design of limiting columns and limiting slots in power transformers, the problem of unstable core support is solved, the stability and connection strength of the support are enhanced, the assembly process is simplified and the maintenance cost is reduced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-03-10
AI Technical Summary
In the existing technology, the iron core support of the power transformer is not firmly fixed in the transformer tank, which leads to vibration and shaking, affecting the stability and performance of the transformer. Moreover, the existing solutions increase the complexity and cost of assembly.
The design employs limiting columns and limiting grooves. By setting protruding limiting columns on the support beam and matching them with the limiting grooves on the box cover, a two-way constraint is formed on the fixed bracket. Combined with the use of fasteners, this enhances the stability and connection firmness of the bracket.
It effectively prevents the support from shaking due to vibration or external interference, improves the stability of the iron core and the operating stability of the transformer, simplifies the assembly process and reduces maintenance costs.
Smart Images
Figure CN223986473U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power transformer technology, specifically to a power transformer core fixing structure. Background Technology
[0002] Power transformers are widely used in all aspects of power generation, transmission, distribution, and consumption, and are indispensable equipment in power systems. The transformer contains an iron core, its main component, which forms a closed magnetic circuit and increases magnetic coupling between coils. In transformer manufacturing, although support designs exist for fixing the iron core, these supports often lack a secure connection to the transformer tank. Therefore, vibrations generated during transformer operation or external environmental disturbances can cause the supports to sway inside the tank. This swaying not only affects the stability of the iron core, leading to magnetic circuit discontinuities and reduced transformer efficiency, but can also cause noise and additional mechanical stress, posing a serious threat to the long-term performance and lifespan of the transformer.
[0003] To overcome this problem, existing technologies typically employ additional fasteners or filler materials to ensure the stability of the support. However, this approach not only increases the complexity and cost of assembly but may also introduce additional assembly errors, affecting the overall performance of the transformer.
[0004] Therefore, existing technologies need further development. Utility Model Content
[0005] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and provide a power transformer core fixing structure to solve the technical problem that the support for clamping the core is not firmly fixed in the transformer tank in related technologies.
[0006] To achieve the above technical objectives, the present invention adopts the following technical solution: a power transformer core fixing structure is provided, comprising: a housing, the top of which is provided with a detachable cover; a fixing bracket, which is installed inside the housing and used to fix the core, and the fixing bracket is provided with support beams at intervals perpendicular to the length direction of the housing; the support beams are provided with protruding limiting columns, and the cover is provided with limiting grooves that match the limiting columns. When the cover is placed on the housing, the limiting columns enter the limiting grooves, forming a two-way constraint on the fixing bracket in both the horizontal and vertical directions.
[0007] Furthermore, each support beam is equipped with a limiting column.
[0008] Furthermore, the limiting column is a polygonal column, and the limiting groove is a polygonal groove that matches the shape of the limiting column.
[0009] Furthermore, the limiting column is located at the center of the supporting beam.
[0010] Furthermore, the limiting column is a square column, and the limiting groove is a square groove.
[0011] Furthermore, the limiting column is detachably installed on the support beam.
[0012] Furthermore, the limiting column and the support beam are integrally formed, and the support beam and the fixed bracket are detachably connected.
[0013] Furthermore, the fixed bracket has flanges at both ends, and the support beam has hooks at both ends. The hooks have hook grooves that can engage with the flanges. By moving the support beam, the flanges slide in the hook grooves, thereby enabling the disassembly and connection of the support beam and the fixed bracket.
[0014] Furthermore, the fixing structure also includes at least two fasteners, each of which is detachably installed, and each fastener passes through the hook and flange to connect the support beam and the fixing bracket.
[0015] Beneficial effects:
[0016] 1. By setting limiting columns on the support beam and matching them with the limiting grooves on the tank cover, a two-way constraint is formed on the fixed bracket in both the horizontal and vertical directions. This design greatly enhances the stability of the bracket holding the iron core during transformer operation and effectively prevents the bracket from shaking due to vibration or external environmental interference.
[0017] 2. The limiting posts are detachably installed on the support beam via threaded connections, or they can be integrally formed with the support beam but the support beam is detachably connected to the fixed bracket. This design provides flexibility, allowing the position or number of limiting posts to be adjusted according to actual needs. Furthermore, the strength of the connection can be further enhanced by increasing the number and location of fasteners.
[0018] 3. The matching design of the limiting column and the limiting groove simplifies the assembly process, making operation simple and efficient. Attached Figure Description
[0019] Figure 1 This is a cross-sectional view of the power transformer core fixing structure used in this embodiment of the utility model;
[0020] Figure 2 This is a top view of the fixed bracket used in this embodiment of the utility model;
[0021] Figure 3 This is a schematic diagram of the structure of the box cover used in an embodiment of this utility model;
[0022] Figure 4 This is a schematic diagram of the structure of the power transformer housing used in this embodiment of the utility model;
[0023] Figure 5 yes Figure 4 A magnified view of part A in the middle;
[0024] Figure 6 This is a schematic diagram of the fixed bracket and support beam used in another embodiment of this utility model;
[0025] Figure 7 yes Figure 6 The diagram shows the usage state when the fixed bracket and support beam are connected in the embodiment.
[0026] The above figures include the following reference numerals:
[0027] 1. Box body; 2. Box cover; 21. Limiting groove; 31. Fixed bracket; 32. Support beam; 33. Limiting column; 34. Flange; 35. Hook edge; 36. Hook groove; 37. Fastener; 4. Iron core. Detailed Implementation
[0028] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.
[0029] According to an embodiment of this utility model, a power transformer core fixing structure is provided. Please refer to [link / reference]. Figures 1 to 7 The system includes: a housing 1, with a removable cover 2 on top; a fixing bracket 31, which is located inside the housing 1 and used to fix the iron core 4; support beams 32 perpendicular to the length of the housing 1 are spaced apart on the fixing bracket 31; protruding limiting posts 33 are provided on the support beams 32; and limiting grooves 21 matching the limiting posts 33 are provided on the cover 2. When the cover 2 is placed on the housing 1, the limiting posts 33 enter the limiting grooves 21, forming a two-way constraint on the fixing bracket 31 in both the horizontal and vertical directions. By setting protruding limiting posts 33 on the support beams 32 and matching them with the limiting grooves 21 on the cover 2, when the cover 2 is placed on the housing 1, the limiting posts 33 accurately enter the limiting grooves 21, thereby forming a two-way constraint on the fixing bracket 31 in both the horizontal and vertical directions. This design significantly enhances the stability of the support for fixing the iron core 4 during transformer operation, preventing core displacement or shaking caused by vibration or external forces. This not only ensures the normal operation and stable performance of the transformer but also makes operation more convenient and efficient. The power transformer iron core fixing structure of this invention solves the technical problem of insecure fixing of the iron core clamping support within the transformer tank in related technologies.
[0030] See Figure 1 , Figure 2 and Figure 3 In the power transformer core fixing structure of this embodiment, each support beam 32 is provided with a limiting post 33. The number of limiting posts 33 corresponds one-to-one with the support beams 32, simplifying the assembly process. During assembly, each limiting post 33 only needs to be aligned with the corresponding limiting slot 21, without the need for additional alignment or adjustment steps, thus improving assembly efficiency and accuracy.
[0031] See Figure 1 , Figure 2 and Figure 3 In the power transformer core fixing structure of this embodiment, the limiting column 33 is a polygonal column, and the limiting groove 21 is a polygonal groove that matches the shape of the limiting column 33. Since the polygonal limiting column 33 and the limiting groove 21 can form a tight fitting relationship when connected, it can effectively prevent vibration or loosening during use and avoid horizontal rotation of the fixing bracket 31 or the tank cover 2.
[0032] See Figure 1 , Figure 2 and Figure 3 In the power transformer core fixing structure of this embodiment, the limiting column 33 is located at the center of the support beam 32. This not only helps to balance the force on the fixing bracket 31 and reduce deformation or shaking caused by uneven force, but also makes it easier to align and fix during installation and commissioning, simplifying the installation steps and improving installation efficiency.
[0033] See Figure 2 , Figure 3 , Figure 4 and Figure 5 In the power transformer core fixing structure of this embodiment, the limiting column 33 is a square column, and the limiting groove 21 is a square groove. The square column and square groove not only effectively prevent the fixing bracket 31 or the tank cover 2 from rotating horizontally, but this square structure also makes alignment and fixing easier during installation. Compared to other shapes, the square structure has a more defined alignment direction, making the installation process simpler and faster. At the same time, during disassembly, the square-structured limiting column 33 is also easier to remove from the limiting groove 21, thereby reducing maintenance costs and time.
[0034] In the power transformer core fixing structure of this embodiment, the limiting column 33 is detachably installed on the support beam 32. Preferably, the limiting column 33 is detachably installed on the support beam 32 via a threaded connection. The threaded connection design allows the limiting column 33 to be easily installed on or removed from the support beam 32, simplifying the assembly and disassembly steps.
[0035] See Figure 6 and Figure 7 In the power transformer core fixing structure of this embodiment, the limiting column 33 and the support beam 32 are integrally formed, and the support beam 32 and the fixing bracket 31 are detachably connected.
[0036] See Figure 6 and Figure 7 In the power transformer core fixing structure of this embodiment, the fixing bracket 31 has flanges 34 at both ends, and the support beam 32 has hook edges 35 at both ends. The hook edges 35 have hook grooves 36 that can engage with the flanges 34. By moving the support beam 32, the flanges 34 slide in the hook grooves 36, thereby realizing the disassembly and connection of the support beam 32 and the fixing bracket 31. This snap-fit design makes the connection between the support beam 32 and the fixing bracket 31 very simple. Simply align the hook edge 35 of the support beam 32 with the flange 34 of the fixing bracket 31 and slide it along the hook groove 36 to achieve the connection. Similarly, disassembly is also achieved simply by sliding the support beam 32 out of the hook groove 36. This design greatly improves the efficiency of installation and disassembly.
[0037] See Figure 6 and Figure 7 In the power transformer core fixing structure of this embodiment, the fixing structure also includes at least two fasteners 37. Each fastener 37 is detachably installed, and each fastener 37 passes through the hook edge 35 and the flange 34 respectively to connect the support beam 32 and the fixing bracket 31. The addition of the fasteners 37 provides additional fixing force for the connection between the support beam 32 and the fixing bracket 31. Through the locking action of the fasteners 37, the connection between the support beam 32 and the fixing bracket 31 can be ensured to be more stable, effectively preventing loosening or detachment caused by vibration or external force during transformer operation.
[0038] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0039] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be repeated here.
[0040] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.
[0041] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.
[0042] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.
Claims
1. A core fixing structure for a power transformer, characterized in that, The utility model relates to a kind of fixed structure of iron core, including: Box (1), the top of the box (1) is provided with detachable box cover (2); Fixed support (31), the fixed support (31) is arranged inside the box (1) and is used to fix iron core (4), the fixed support (31) is spaced apart and is provided with support beam (32) perpendicular to the length direction of the box (1); The support beam (32) is provided with protruding limiting column (33), the box cover (2) is provided with limiting slot (21) matched with the limiting column (33), when the box cover (2) is covered on the box (1), the limiting column (33) enters the limiting slot (21), forms the bidirectional constraint of the fixed support (31) horizontal direction and vertical direction.
2. The power transformer core fixing structure according to claim 1, characterized in that, Each support beam (32) is provided with a limiting column (33).
3. The power transformer core fixing structure according to claim 2, characterized in that, The limiting column (33) is polygonal column, and the limiting slot (21) is polygonal slot matched with the limiting column (33).
4. The power transformer core fixing structure according to claim 3, characterized in that, The limiting column (33) is located at the center of the support beam (32).
5. The power transformer core fixing structure according to claim 4, characterized in that, The limiting column (33) is square column, and the limiting slot (21) is square slot.
6. The power transformer core fixing structure according to claim 1, characterized by The limiting column (33) is detachably installed on the support beam (32).
7. The power transformer core fixing structure according to claim 1, characterized by The limiting column (33) and the support beam (32) are integrally formed, and the support beam (32) and the fixed support (31) are detachably connected.
8. The power transformer core fixing structure according to claim 7, characterized in that, The fixed support (31) is provided with flange (34) at both ends, the support beam (32) is provided with hook edge (35) at both ends, the hook edge (35) has hook groove (36) capable of clamping the flange (34), the support beam (32) is moved, so that the flange (34) slides in the hook groove (36), so as to realize the disassembly and connection of the support beam (32) and the fixed support (31).
9. The power transformer core fixing structure according to claim 8, characterized in that, The fixed structure further includes at least two fasteners (37), each fastener (37) is detachably arranged, and each fastener (37) connects the support beam (32) and the fixed support (31) by passing through the hook edge (35) and the flange (34).