Power transformer body insulation structure

Abstract

The utility model belongs to the technical field of transformers, and particularly relates to a power transformer body insulation structure which comprises two symmetrically-arranged first installation frames, two symmetrically-arranged supporting frames are fixedly connected to the lower surface between the two first installation frames, an iron core is fixedly installed on the upper surfaces of the two supporting frames, and a winding is arranged on the iron core in a sleeved mode. A supporting mechanism is arranged on the mounting frame I; according to the utility model, the positioning blocks are tightly attached to the winding, so that the stability of the winding in the carrying and using processes is obviously enhanced, the winding is effectively prevented from loosening, the stable work of the winding under various conditions is ensured, the winding can be fully protected in the transportation process, and the stability in the transportation process is ensured; due to the design of the sliding rod and the limiting rod, the position of the positioning block can be easily adjusted so as to adapt to positioned or configured windings with different sizes and different positions, and higher flexibility is provided for design and manufacturing of the power transformer.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to an insulation structure of a power transformer body. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. At present, the edge of the transformer core is a contraction structure similar to an ellipse. Since the core is made of stacked silicon steel sheets, a step-like structure is formed at the end. The iron yoke of the transformer is a part of the transformer core. The part of the core that is covered with coils is called the core column. The coil is also called the winding. The part that is not covered with coils and only serves to close the magnetic circuit is called the iron yoke.

[0003] If the transformer is not handled properly during transportation or installation, the coil on the iron core may become loose due to collision, vibration, etc. The loose coil may change its original electromagnetic induction distribution, resulting in unstable output voltage of the transformer. The existing insulation structure of the transformer body is difficult to fully prevent looseness during transportation, and it is difficult to provide adequate protection during transportation to ensure stability during transportation.

[0004] In view of the above technical defects, a solution is now proposed. Utility Model Content

[0005] The utility model aims to provide an insulation structure for a power transformer body, so as to solve the problem that the existing insulation structure for the transformer body is difficult to fully prevent loosening during handling, and is difficult to fully protect during transportation and ensure stability during transportation.

[0006] The purpose of the utility model can be achieved by the following technical solutions: an insulation structure of a power transformer body, comprising two symmetrically arranged mounting frames, two symmetrically arranged supporting frames are fixedly connected to the lower surface of the two mounting frames, iron cores are fixedly installed on the upper surfaces of the two supporting frames, windings are sleeved on the iron cores, and a supporting mechanism is arranged on the mounting frame;

[0007] The supporting mechanism includes connecting rods that respectively penetrate the two mounting frames 1 and are fixedly connected to the mounting frame 1, two mounting frames 2 that cooperate with the mounting frame 1 are arranged on the top of the winding, the two connecting rods penetrate the corresponding mounting frame 2 and are fixedly connected thereto, the two connecting rods commonly penetrate and are slidably connected to a sliding rod, a positioning block is arranged on the side of the sliding rod close to the winding, two limiting rods are fixedly connected to one end of the positioning block close to the sliding rod, the two limiting rods penetrate the sliding rod and are slidably connected to the sliding rod, and an arc-shaped opening corresponding to the winding is opened at one end of the positioning block close to the sliding rod.

[0008] Preferably, the sliding rod is provided with two connecting rods respectively located on the two connecting rods corresponding to the iron core, the sliding rod is penetrated by and screwed with a screw, and one end of the screw close to the positioning block is connected to the positioning block for limited rotation.

[0009] Preferably, two fixing knobs are arranged on the surface of the sliding rod, the fixing knobs penetrate the sliding rod and are screwed to the sliding rod, and one end of the fixing knob close to the connecting rod abuts against the connecting rod.

[0010] Preferably, an insulating pad is sleeved on the top of the iron core close to the winding, and the insulating pad abuts against the winding and the lower surface of the insulating pad.

[0011] Preferably, a partition plate is provided between the extension portions of adjacent iron cores, and the partition plate is located between two sliding rods and is limitedly slidably connected to the sliding rods.

[0012] Preferably, the surfaces of the dividing plate close to the two sliding rods are fixedly connected with bolts, and the sliding rods are provided with open grooves for the bolts to pass through, and the open grooves are arranged horizontally.

[0013] Beneficial effects of the utility model:

[0014] (1) The utility model provides a supporting mechanism and a close fit between the positioning block and the winding, thereby significantly enhancing the stability of the winding during transportation and use, effectively preventing the winding from loosening, ensuring its stable operation under various conditions, and being able to fully protect the winding during transportation to ensure stability during transportation. The design of the sliding rod and the limit rod can easily adjust the position of the positioning block to adapt to the positioning or configuration of windings of different sizes and positions, thereby providing greater flexibility for the design and manufacture of power transformers;

[0015] (2) By setting up a partition plate, dangers such as arc and electric shock can be avoided. The partition plate can isolate the coils and avoid mutual influence between coils of different voltage levels, providing a strong guarantee for the safe, stable and efficient operation of the power transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings;

[0017] Figure 1 The utility model has an overall structure of three-dimensional Figure 1 ;

[0018] Figure 2 The utility model has an overall structure of three-dimensional Figure 2 ;

[0019] Figure 3 This is a schematic diagram of the structure of the sliding rod of the utility model from a top view;

[0020] Figure 4 This is a schematic diagram of the positioning block structure of the utility model;

[0021] Figure 5 It is a structural schematic diagram of a partition plate of the utility model.

[0022] Legend: 1. Mounting frame 1; 2. Support frame; 3. Iron core; 4. Connecting rod; 5. Winding; 6. Mounting frame 2; 7. Insulating pad; 8. Partition plate; 9. Sliding rod; 10. Limit rod; 11. Positioning block; 12. Screw; 13. Opening slot; 14. Fixing knob. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1:

[0025] This embodiment is used to solve the problem that the existing device body insulation structure is difficult to fully prevent loosening during handling, and is difficult to fully protect during transportation and ensure stability during transportation.

[0026] See also Figure 1 - Figure 5 As shown, this embodiment is an insulation structure of a power transformer body, comprising two symmetrically arranged mounting frames 1, two symmetrically arranged support frames 2 are fixedly connected to the lower surface between the two mounting frames 1, the support frames 2 extend in a vertical direction, iron cores 3 are fixedly installed on the upper surfaces of the two support frames 2, windings 5 ​​are sleeved on the iron cores 3, and a supporting mechanism is arranged on the mounting frame 1;

[0027] The supporting mechanism includes connecting rods 4 that respectively penetrate the two mounting frames 1 and are fixedly connected to the mounting frames 1. Two mounting frames 2 6 that match the mounting frames 1 are arranged on the top of the winding 5. The two connecting rods 4 penetrate the corresponding mounting frames 2 6 and are fixedly connected thereto. Threaded mechanisms are arranged at both vertical ends of the connecting rods 4, so that nuts can be used to fix the positions of the two mounting frames 2 6.

[0028] The connecting rod 4 passes through and is slidably connected with a sliding rod 9. A positioning block 11 is provided on one side of the sliding rod 9 near the winding 5. One end of the positioning block 11 near the sliding rod 9 is fixedly connected with two limit rods 10. The two limit rods 10 pass through the sliding rod 9 and are slidably connected to the sliding rod 9. The limit rod 10 is slidably connected to the sliding rod 9, so that the limit rod 10 can be moved toward the direction close to the winding 5, and the position of the positioning block 11 fixedly connected to the limit rod 10 is adjusted. An arc-shaped opening corresponding to the winding 5 is opened at one end of the positioning block 11 near the sliding rod 9. When the positioning block 11 moves toward the direction of the winding 5 and fits tightly with the winding 5, the winding 5 is prevented from loosening during transportation, thereby ensuring the stability of the winding 5 during use. At the same time, the positioning block 11 and the sliding rod 9 can be set in the vertical direction to position different positions. Compared with the use of adhesives, stability and durability under high temperature and high pressure conditions can be guaranteed.

[0029] The sliding rod 9 is provided with two connecting rods 4 respectively located on the iron core 3. The sliding rod 9 is penetrated and screwed with a screw 12. The end of the screw 12 close to the positioning block 11 is connected to the positioning block 11 for limited rotation. By rotating the screw 12, the corresponding positioning block 11 can be pushed to move toward the outer wall of the winding 5, so that the positioning block 11 is in full contact with the outer wall of the winding 5, the winding 5 is positioned, and the winding 5 is prevented from loosening.

[0030] Two fixing knobs 14 are provided on the surface of the sliding rod 9. The fixing knob 14 passes through the sliding rod 9 and is screwed to the sliding rod 9. One end of the fixing knob 14 close to the connecting rod 4 is against the connecting rod 4. By rotating the fixing knob 14, the position of the sliding rod 9 can be fixed, so that the sliding rod 9 can be adjusted along the vertical direction of the connecting rod 4 to realize the positioning of different positions of the winding 5.

[0031] An insulating pad 7 is provided near the top of the core 3 near the winding 5, and the insulating pad 7 is against the winding 5 and the lower surface of the insulating pad 7. By setting the winding 5, the top of the winding 5 can be positioned, and the auxiliary positioning block 11 is further positioned to prevent the winding 5 from being easily loosened in the vertical direction.

[0032] Embodiment 2:

[0033] This embodiment is used to solve the problem of ensuring sufficient insulation.

[0034] See also Figure 1 , Figure 5 As shown, a power transformer body insulation structure of this embodiment includes a partition plate 8 disposed between the extensions of adjacent iron cores 3, the partition plate 8 is located between two sliding rods 9 and is limitedly slidably connected to the sliding rods 9, and the partition plate 8 can be provided to avoid the dangers of arc and electric shock. The partition plate can isolate the coils to avoid mutual influence between coils of different voltage levels, and the partition plate 8 is made of phenolic resin thermosetting plastic.

[0035] The surfaces of the partition plate 8 close to the two sliding rods 9 are fixedly connected with bolts. The sliding rods 9 are provided with open grooves 13 for the bolts to pass through. The bolts fixedly connected to the partition plate 8 slide in the open grooves 13 to adjust the position of the partition plate 8. The open grooves 13 are arranged horizontally.

[0036] Combining Embodiment 1 and Embodiment 2

[0037] By setting the support mechanism and the close fit between the positioning block 11 and the winding 5, the stability of the winding 5 during transportation and use is significantly enhanced, the winding 5 is effectively prevented from loosening, and its stable operation under various conditions is ensured. The winding 5 can be fully protected during transportation to ensure the stability of the winding 5 during transportation. Through the design of the sliding rod 9 and the limit rod 10, the position of the positioning block 11 can be easily adjusted to adapt to the positioning or configuration of the winding 5 of different sizes and positions, which provides greater flexibility for the design and manufacture of the power transformer. By setting the partition plate 8, the dangers of arc and electric shock can be avoided. The partition can play the role of isolating the coils, avoiding the mutual influence between coils of different voltage levels, and providing a strong guarantee for the safe, stable and efficient operation of the power transformer.

[0038] like Figure 1 - Figure 5 As shown, the working process and principle of the utility model are as follows:

[0039] Step 1: Set the winding 5 on the iron core 3, place the insulating pad 7 on the top of the winding 5, and then insert the corresponding sliding rod 9 and the second mounting frame 6 into the two corresponding connecting rods 4 in turn, place the dividing plate 8 between the two adjacent windings 5, and then fix the position of the second mounting frame 6 by the nut and the connecting rod 4;

[0040] Step 2, rotating the screw 12 can push the corresponding positioning block 11 to move toward the outer wall of the winding 5. When the positioning block 11 moves toward the winding 5 and fits tightly with the winding 5, it prevents the winding 5 from loosening during transportation and ensures the stability of the coil during use.

[0041] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

[0042] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0043] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A power transformer body insulation structure, comprising two symmetrically arranged mounting frames (1), characterized in that: Two symmetrically arranged support frames (2) are fixedly connected on the lower surface between the two mounting frames (1); an iron core (3) is fixedly installed on the upper surface of the two support frames (2); a winding (5) is sleeved on the iron core (3); and a supporting mechanism is arranged on the mounting frame (1); The support mechanism comprises connecting rods (4) respectively penetrating two mounting frames (1) and fixedly connected to the mounting frames (1); two mounting frames (6) cooperating with the mounting frames (1) are arranged on the top of the winding (5); the two connecting rods (4) penetrate the corresponding mounting frames (6) and are fixedly connected thereto; the two connecting rods (4) penetrate and are slidably connected to a sliding rod (9); a positioning block (11) is arranged on one side of the sliding rod (9) close to the winding (5); two limiting rods (10) are fixedly connected to one end of the positioning block (11) close to the sliding rod (9); the two limiting rods (10) penetrate the sliding rod (9) and are slidably connected to the sliding rod (9); an arc-shaped opening corresponding to the winding (5) is opened at one end of the positioning block (11) close to the sliding rod (9).

2. The insulation structure of a power transformer body according to claim 1, characterized in that: The sliding rod (9) is provided with two connecting rods (4) respectively located on the two connecting rods (4) corresponding to the iron core (3). The sliding rod (9) is penetrated by and screwed with a screw rod (12). One end of the screw rod (12) close to the positioning block (11) is connected to the positioning block (11) for limited rotation.

3. The insulation structure of a power transformer body according to claim 1, characterized in that: Two fixed knobs (14) are arranged on the surface of the sliding rod (9). The fixed knobs (14) penetrate the sliding rod (9) and are screwed to the sliding rod (9). One end of the fixed knob (14) close to the connecting rod (4) abuts against the connecting rod (4).

4. The insulation structure of a power transformer body according to claim 1, characterized in that: An insulating pad (7) is sleeved on the top of the iron core (3) close to the winding (5), and the insulating pad (7) abuts against the winding (5) and the lower surface of the insulating pad (7).

5. The insulation structure of a power transformer body according to claim 1, characterized in that: A partition plate (8) is provided between the extensions of adjacent iron cores (3); the partition plate (8) is located between two sliding rods (9) and is connected to the sliding rods (9) in a limited sliding manner.

6. The insulation structure of a power transformer body according to claim 5, characterized in that: The surfaces of the partition plate (8) close to the two sliding rods (9) are fixedly connected with bolts. The sliding rods (9) are provided with opening grooves (13) for the bolts to pass through. The opening grooves (13) are arranged horizontally.

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