CN221008742U - Winding structure of energy-saving power transformer - Google Patents

Abstract

The utility model discloses a winding structure of an energy-saving power transformer, which comprises a silicon steel sheet, a winding coil and an iron core bracket, wherein the winding coil comprises a high-voltage coil and a low-voltage coil, the iron core bracket, the high-voltage coil and the low-voltage coil are further provided with cushion blocks, and the cushion blocks comprise a flat cushion layer for isolating the high-voltage coil and the low-voltage coil from the iron core bracket and a spacer layer which is extended between the high-voltage coil and the low-voltage coil by the flat cushion layer; the winding structure of the utility model is characterized in that the height of the coils is adjusted and the thickness of one side is reduced under the condition that the total quantity of the coils is not changed for the high-voltage coils and the low-voltage coils, so that the overall width size is reduced, the volume of the transformer is reduced, no-load loss is reduced, in addition, the cushion blocks are arranged to ensure the safety interval between the coils, the safety of the transformer during operation is ensured, the winding of the utility model can effectively improve the safety of the transformer, and compared with the prior art, the winding has fewer loss and more energy conservation, and meets the standard product energy efficiency grade.

Description

Winding structure of energy-saving power transformer

Technical Field

The utility model relates to the technical field of transformers, in particular to a winding structure of an energy-saving power transformer.

Background

The transformer is a device for converting ac voltage, current and impedance, and when ac current is applied to the primary coil, ac magnetic flux is generated in the core (or core), and voltage (or current) is induced in the secondary coil. The transformer consists of iron core and coil with two or more windings, the winding connected to power source is called primary winding and the other windings are called secondary winding. In a generator, either the coil movement through a magnetic field or the movement of a magnetic field through a fixed coil, a potential is induced in the coil, both of which are the same in value but vary in the amount of flux that intersects the coil, which is the principle of mutual induction. A transformer is a device that transforms voltage, current and impedance using the electromagnetic mutual inductance effect.

The transformer core in the prior art generally comprises a core winding, a shell and the like, wherein the core winding comprises a silicon steel sheet, a core support and a winding coil, the core support supports the silicon steel sheet and the winding coil, the winding coil is required to pay attention to relative distances in processing production, particularly, the distances between a high-voltage coil and a low-voltage coil are strictly regulated, the standard requirement aims at avoiding damage caused by faults of a transformer when an emergency occurs to a circuit, and therefore, the arrangement distances and the relative relations among all components of the transformer core are strictly required.

Disclosure of utility model

In view of the prior art, the present utility model is directed to providing a winding structure of an energy-saving power transformer, and the present utility model is characterized in that the structure of the present utility model is adopted to ensure compliance with the production requirement standard of the transformer, and the transformer winding structure of the present utility model is adopted to provide a relatively higher safety and energy-saving feature.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides an energy-saving power transformer's winding structure, includes blade of silicon steel, wire winding coil and iron core support, its characterized in that: the winding coil comprises a high-voltage coil and a low-voltage coil, the iron core support, the high-voltage coil and the low-voltage coil are further provided with cushion blocks, and each cushion block comprises a flat cushion layer for isolating the high-voltage coil and the low-voltage coil from the iron core support and a spacer layer which is located between the high-voltage coil and the low-voltage coil and is extended by the flat cushion layer.

As a further setting of the scheme, the height of the high-voltage coil is smaller than that of the low-voltage coil, and the flat cushion layer is in butt joint with the high-voltage coil and is correspondingly arranged in a step shape with the low-voltage coil.

As a further setting of above-mentioned scheme, the one end that the cushion is towards the iron core support is provided with the location fixed slot, the iron core support corresponds to be provided with bolt hole, bolt ejector pin, be provided with the backing plate on the location fixed slot.

As a further arrangement of the scheme, eight cushion blocks are arranged between the iron core support and the winding coil respectively.

As a further arrangement of the scheme, the cushion block main body is made of hard rubber, and the end face abutting against the winding coil is made of soft rubber.

As a further arrangement of the above solution, the thickness of the spacer layer is equal to the design spacing arrangement of the high voltage coil and the low voltage coil.

The beneficial effects are that: the winding structure of the utility model is characterized in that the coil height is adjusted and the single-side thickness is reduced under the condition of not changing the total coil quantity by the requirement of high-voltage coil spacing and low-voltage coil spacing, thereby reducing the overall size.

Drawings

Fig. 1 is a schematic view of a winding structure according to the present utility model.

Fig. 2 is a top view of the winding of the present utility model.

Fig. 3 is a side view of the winding of the present utility model.

Fig. 4 is a schematic diagram of a pad structure according to the present utility model.

Description of the drawings: 1. silicon steel sheets; 2. a winding coil; 21. a high voltage coil; 22. a low voltage coil; 24. an end face; 3. an iron core bracket; 31. bolt holes; 32. a bolt ejector rod; 4. a cushion block; 41. a flat cushion layer; 42. a spacer layer; 43. a backing plate; 44. positioning and fixing grooves.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description. In addition, the embodiments of the present utility model and the features in the embodiments may be combined with each other without collision.

The winding structure of an energy-saving power transformer as shown in fig. 1-4 comprises a silicon steel sheet 1, a winding coil 2 and a core support 3, wherein the winding coil 2 comprises a high-voltage coil 21 and a low-voltage coil 22, the high-voltage coil 21 is arranged at a smaller height than the low-voltage coil 22 in the embodiment, the purpose is that, considering the difference between the high-voltage coil 21 and the low-voltage coil 22, namely the safety distance between the low-voltage coil 22 and the surrounding such as the core support 3 is relatively close, the high-voltage coil 21 needs to keep a larger safety distance, so that the low-voltage coil 22 can compress the diameter to raise the whole length, and the high-voltage coil 21 needs to consider the vertical height distance, so that the outer diameter and the radial thickness need to be increased to meet the coil requirement, which also leads to relatively larger whole volume of the transformer, and the different height designs of the embodiment are just reasonable improvements corresponding to the characteristics of the two, namely, taking into consideration the safety and reducing the volume occupation, and arranging a cushion block 4 on the core support 3, the high-voltage coil 21 and the low-voltage coil 22, and the cushion block 4 comprises the high-voltage coil 21 and the cushion layer 4 and the low-voltage coil 21 and the high-voltage coil 21 and the cushion layer 41 between the high-voltage coil 21 and the low-voltage coil 22 and the flat layer 41.

In this embodiment, the cushion block 4 has three functions: ① The device has the advantages that the device plays a role in isolating the iron core bracket 3 from the high-voltage coil 21 and from the low-voltage coil 22, controlling the distance between the high-voltage coil and the low-voltage coil, and guaranteeing the safe work of the coil and the iron core bracket 3; ② The contact of the low-voltage coil 22 and the high-voltage coil 21 with the iron core bracket 3 is buffered; ③ Providing positioning between the high voltage coils 21 and the low voltage coils 22; the meaning of the ③ th point is that the spacer layer 42 is clamped between the high-voltage coil 21 and the low-voltage coil 22, so that the problem that the center of the inner-layer low-voltage coil 22 is aligned with the center of the high-voltage coil 21 during installation of workers in the production process is solved, the problem that the distance between the inner ring of the prepared high-voltage coil 21 and the outer edge of the low-voltage coil 22 is relatively uneven in the installation production process due to the problems of operation and the like in the prior art is avoided, namely, one side is relatively close to the other side is far away, the offset problem of the size of the distance between the three groups of coils can exist, the problem not only causes the difference of the distance between the coils, but also causes the safety problem under the condition of unaesthetic and high-voltage current, and the problem that the cross current loss caused by too close magnetic induction between the coils is increased.

As a further arrangement of the above-mentioned scheme, the flat pad layer 41 is disposed in contact with the high-voltage coil 21 and is disposed in a stepped shape corresponding to the low-voltage coil 22, and the difference in the relative heights of the corresponding high-voltage coil 21 and low-voltage coil 22 sets the height of the step.

As a further arrangement of the scheme, one end of the cushion block 4, which faces the iron core support 3, is provided with a positioning fixing groove 44, the iron core support 3 is correspondingly provided with a bolt hole 31 and a bolt ejector rod 32, and the positioning fixing groove 44 is provided with a backing plate 43.

As shown in fig. 3, the cushion block 4 of this embodiment is further provided with a positioning fixing groove 44, the iron core support 3 is provided with a bolt ejector rod 32, the bolt ejector rod 32 is abutted on the backing plate 43, and a worker can fully abut the cushion block 4 by rotating the bolt ejector rod 32, so that the cushion block 4 can be stably installed between the winding coil 2 and the iron core support 3 and is not easy to move.

As a further arrangement of the scheme, the cushion blocks 4 are provided with eight square corners, which are respectively positioned between the iron core support 3 and the winding coil 2, of the square winding, and the eight cushion blocks 4 are matched with the iron core support 3 in a setting manner, so that the iron core support can well support, disperse and bear pressure.

As a further arrangement of the above scheme, the main body of the cushion block 4 is made of hard rubber, the end face 24 abutting against the winding coil 2 is made of soft rubber, the purpose of the cushion block 4 comprises keeping a gap, therefore, the main body can be made of rubber composite materials or insulating materials with relatively high hardness, deformation and flattening are mainly avoided under long-term use, the part of the end face 24, which is in direct contact with the winding coil 2, can be made of soft rubber materials with relatively soft texture, friction force can be improved, corner breakage and deformation of the winding coil 2 poured under high pressure can be avoided, the purpose of buffering contact between the two materials is achieved, and the thickness of the spacer layer 42 is equal to the design gap setting of the high-voltage coil 21 and the low-voltage coil 22.

The winding structure of the utility model is characterized in that the coil height is adjusted and the single-side thickness is reduced under the condition of not changing the total coil quantity by the requirement of high-voltage coil spacing and low-voltage coil spacing, thereby reducing the overall size.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims (6)

1. The utility model provides an energy-saving power transformer's winding structure, includes blade of silicon steel (1), wire winding coil (2) and iron core support (3), its characterized in that: the winding coil (2) comprises a high-voltage coil (21) and a low-voltage coil (22), a cushion block (4) is further arranged on the iron core support (3), the high-voltage coil (21) and the low-voltage coil (22), and the cushion block (4) comprises a flat cushion layer (41) for isolating the high-voltage coil (21) and the low-voltage coil (22) from the iron core support (3) and a spacer layer (42) which is located between the high-voltage coil (21) and the low-voltage coil (22) and is extended by the flat cushion layer (41).

2. The winding structure of an energy-efficient power transformer according to claim 1, wherein: the height of the high-voltage coil (21) is smaller than that of the low-voltage coil (22), and Ping Dianceng (41) is in butt joint with the high-voltage coil (21) and is correspondingly arranged in a step shape with the low-voltage coil (22).

3. The winding structure of an energy-efficient power transformer according to claim 1, wherein: the utility model discloses a positioning and fixing device for the iron core of the iron core support, including iron core support (3), cushion (4), bolt hole (31), bolt ejector pin (32), backing plate (43) are provided with to one end of cushion (4) towards iron core support (3), iron core support (3) are provided with bolt hole (31), bolt ejector pin (32) correspondingly, be provided with backing plate (43) on positioning and fixing groove (44).

4. The winding structure of an energy-efficient power transformer according to claim 1, wherein: eight cushion blocks (4) are arranged between the iron core support (3) and the winding coils (2) respectively.

5. The winding structure of an energy-efficient power transformer according to claim 1, wherein: the main body of the cushion block (4) is made of hard rubber, and the end face (24) abutting against the winding coil (2) is made of soft rubber.

6. The winding structure of an energy-efficient power transformer according to claim 1, wherein: the thickness of the spacer layer (42) is equal to the design spacing between the high voltage coil (21) and the low voltage coil (22).