CN221226007U

CN221226007U - Distribution transformer coil drying pressing plate structure

Info

Publication number: CN221226007U
Application number: CN202322885774.4U
Authority: CN
Inventors: 陈忠; 戎留明; 罗成
Original assignee: Clp Jiangsu Transformer Manufacturing Co ltd
Current assignee: Clp Jiangsu Transformer Manufacturing Co ltd
Priority date: 2023-10-26
Filing date: 2023-10-26
Publication date: 2024-06-25
Anticipated expiration: 2033-10-26

Abstract

The utility model discloses a distribution transformer coil drying pressing plate structure, which comprises two groups of pressing plate assemblies arranged at intervals, wherein three groups of transformer coils of a transformer are compactly arranged along the length direction between the two groups of pressing plate assemblies; the pressing plate assembly comprises a rectangular pressing plate, wherein one end face of the rectangular pressing plate is provided with a reinforcing rib group for reinforcing the structural strength of the rectangular pressing plate. Fifteen groups of transformer coils of five transformers can be placed on a single layer of a trolley plate of the oven by using the distribution transformer coil drying pressing plate structure, and thirty groups of transformer coils of ten transformers can be placed on two layers; that is, six groups of transformer coils of two transformers are arranged on each layer of the drying oven compared with the existing drying pressing plate, twelve groups of transformer coils of four transformers can be arranged on two layers of the drying oven, and the utilization rate of the drying oven is improved by about 66%.

Description

Distribution transformer coil drying pressing plate structure

Technical Field

The utility model relates to the technical field of transformer coil drying and press-fitting tools, in particular to a distribution transformer coil drying and press-plate structure.

Background

With the development of the power industry, the national power grid has increasingly strict requirements on the quality of the transformer, not only meets the requirements on the electrical performance, but also meets the requirements on the short circuit resistance of the transformer, so that the transformer product has fine strict requirements from the aspects of technology, materials and production, and further, has new requirements on the transformer production process.

In order to improve the short circuit resistance of a distribution transformer, coils are produced according to the production process, and meanwhile, the transformer coils are required to be dried with a winding die and a voltage, so that the purpose of solidifying insulating materials in the coils is achieved, the mechanical strength of the coils is improved, and the short circuit resistance of the transformer is improved.

The existing dry pressing plate structure is shown in fig. 1, three groups of transformer coils 10 of one transformer are uniformly placed around the center of a round dry pressing plate, as shown in fig. 2, nine groups of transformer coils 10 of three transformers can be placed on a single layer of the oven trolley plate 1000, eighteen groups of transformer coils 10 of six transformers can be placed on two layers of the oven trolley plate, and in order to meet the requirement of mass production of distribution transformers, the number of single dry transformer coils needs to be further increased, so that the consumption of drying energy consumption of the single transformer coil is reduced, and the cost of the transformer production process is reduced.

Disclosure of utility model

The utility model aims to provide a drying pressing plate structure for a coil of a distribution transformer, which improves the effective utilization rate of a drying box, meets the requirement of mass production of the distribution transformer, reduces the consumption of drying energy consumption of a single transformer coil and reduces the cost of the production process of the transformer.

In order to solve the technical problems, the utility model provides a distribution transformer coil drying pressing plate structure, which comprises two groups of pressing plate components,

The two groups of pressing plate assemblies are arranged at intervals, and three groups of transformer coils of one transformer are compactly arranged along the length direction between the two groups of pressing plate assemblies;

The pressing plate assembly comprises a rectangular pressing plate, wherein one end face of the rectangular pressing plate is provided with a reinforcing rib group for enhancing the structural strength of the rectangular pressing plate;

the reinforcing rib group comprises a plurality of first reinforcing ribs and a plurality of second reinforcing ribs, and the first reinforcing ribs and the second reinforcing ribs are connected to form a frame to be welded on one end face of the rectangular pressing plate.

Preferably, a plurality of the first reinforcing ribs are distributed at intervals along the wide edge of the rectangular pressing plate.

Preferably, a plurality of the second reinforcing ribs are distributed at intervals along the long side of the rectangular pressing plate.

Preferably, the first reinforcing rib and the second reinforcing rib are perpendicular to each other.

Preferably, lifting holes are formed in the two ends of each second reinforcing rib and used for lifting the pressure plate and the main transformer coil.

Preferably, a plurality of coil fastening holes are formed in the rectangular pressing plate in a penetrating manner, and the electric transformer coil is pressed and assembled through bolts penetrating through the coil fastening holes.

Preferably, a plurality of the press coil fastening holes are uniformly distributed around the rectangular pressing plate.

Preferably, three groups of transformer coils of one transformer can be pressed between every two groups of pressing plate assemblies, fifteen groups of transformer coils of five transformers can be placed on a single layer of the oven trolley plate, and thirty groups of transformer coils of ten transformers can be placed on two layers.

Compared with the prior art, the utility model has the beneficial effects that:

Fifteen groups of transformer coils of five transformers can be placed on a single layer of a trolley plate of the oven by using the distribution transformer coil drying pressing plate structure, and thirty groups of transformer coils of ten transformers can be placed on two layers; that is, six groups of transformer coils of two transformers are arranged on each layer of the drying oven compared with the existing drying pressing plate, twelve groups of transformer coils of four transformers can be arranged on two layers of the drying oven, and the utilization rate of the drying oven is improved by about 66%.

Drawings

FIG. 1 is a schematic diagram of a conventional dry platen structure;

FIG. 2 is a schematic illustration of the placement of transformer coils on a oven trolley plate using a conventional dry platen configuration;

FIG. 3 is a front view of three sets of transformer coils of a two-set platen assembly press-fit transformer provided by the present utility model;

FIG. 4 is a top view of three sets of transformer coils of a two-set platen assembly press-fit transformer provided by the present utility model;

FIG. 5 is a schematic view of a platen assembly provided by the present utility model;

Fig. 6 is a schematic diagram showing the placement of transformer coils on a drying platen oven trolley board using the drying platen structure for distribution transformer coils provided by the utility model.

In the figure: 1. a platen assembly; 10. a transformer coil; 1000. oven trolley board; 101. a rectangular pressing plate; 102. a reinforcing rib group; 1021. a first reinforcing rib; 1022. a second reinforcing rib; 103. a hoisting hole; 104. the coil fastening hole is pressed.

Detailed Description

The utility model is described in further detail below with reference to the attached drawings and specific examples. Advantages and features of the utility model will become more apparent from the following description and from the claims. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

Examples

The utility model provides a distribution transformer coil drying pressing plate structure, referring to fig. 3-5, which comprises two groups of pressing plate assemblies 1, wherein the two groups of pressing plate assemblies 1 are arranged at intervals, and three groups of transformer coils 10 of a transformer are compactly arranged along the length direction between the two groups of pressing plate assemblies 1; the pressing plate assembly 1 comprises a rectangular pressing plate 101, wherein one end surface of the rectangular pressing plate 101 is provided with a reinforcing rib group 102 for enhancing the structural strength of the rectangular pressing plate 101; the reinforcing rib group 102 includes a plurality of first reinforcing ribs 1021 and a plurality of second reinforcing ribs 1022, and a plurality of the first reinforcing ribs 1021 and a plurality of the second reinforcing ribs 1022 are connected to form a frame welded on one of the end faces of the rectangular pressing plate 101.

In some embodiments, a plurality of the first reinforcing ribs 1021 are spaced along the width of the rectangular platen 101, and a plurality of the second reinforcing ribs 1022 are spaced along the long side of the rectangular platen 101. And the first reinforcing ribs 1021 and the second reinforcing ribs 1022 are perpendicular to each other, so that a plurality of the first reinforcing ribs 1021 and a plurality of the second reinforcing ribs 1022 are connected to form a frame and welded on one of the end faces of the rectangular pressing plate 101.

In some embodiments, each of the second reinforcing ribs 1022 has a lifting hole 103 formed at both ends thereof for lifting the platen and the main transformer coil.

In some embodiments, a plurality of coil fastening holes 104 are formed through the rectangular pressing plate 101, and the electric transformer coil is press-fitted by bolts penetrating the coil fastening holes 104.

Further, the plurality of press coil fastening holes 104 are uniformly distributed around the circumference of the rectangular pressing plate 101.

Specifically, as shown in fig. 6, three groups of transformer coils 10 of one transformer can be pressed between every two groups of pressing plate assemblies 1, and fifteen groups of transformer coils 10 of five transformers can be placed on a single layer of the oven trolley board 1000, and thirty groups of transformer coils 10 of ten transformers can be placed on two layers.

By applying the distribution transformer coil drying pressing plate structure provided by the utility model to press the distribution transformer coils, a normal transformer A, B, C is pressed into one plate by three coils, then the plate is placed on a baking oven trolley plate, five transformer coils in each layer are compactly placed, ten transformer coils can be placed on two layers, and then the plate enters a drying box to dry the coils. The coil is arranged in the drying oven after being pressed by the pressing plate, so that the effective utilization rate of the drying oven is improved by about 66 percent; the method not only meets the requirement of mass production of the distribution transformer, but also reduces the consumption of drying energy consumption of a single transformer coil and reduces the cost of the transformer production process.

The above description is only illustrative of the preferred embodiments of the present utility model and is not intended to limit the scope of the present utility model, and any alterations and modifications made by those skilled in the art based on the above disclosure shall fall within the scope of the appended claims.

Claims

1. A dry pressing plate structure of a distribution transformer coil is characterized by comprising two groups of pressing plate assemblies (1),

The two groups of pressing plate assemblies (1) are arranged at intervals, and three groups of transformer coils (10) of one transformer are compactly arranged along the length direction between the two groups of pressing plate assemblies (1);

The pressing plate assembly (1) comprises a rectangular pressing plate (101), wherein one end face of the rectangular pressing plate (101) is provided with a reinforcing rib group (102) for enhancing the structural strength of the rectangular pressing plate (101);

The reinforcing rib group (102) comprises a plurality of first reinforcing ribs (1021) and a plurality of second reinforcing ribs (1022), and the first reinforcing ribs (1021) and the second reinforcing ribs (1022) are connected to form a frame to be welded on one end face of the rectangular pressing plate (101).

2. A distribution transformer coil dry platen structure according to claim 1, wherein a plurality of said first ribs (1021) are spaced along the broad side of said rectangular platen (101).

3. A distribution transformer coil dry platen structure according to claim 2, wherein a plurality of said second reinforcing ribs (1022) are spaced along the long sides of said rectangular platen (101).

4. A distribution transformer coil dry platen structure according to claim 3, wherein the first stiffener (1021) and the second stiffener (1022) are perpendicular to each other.

5. A dry platen structure for a distribution transformer coil as claimed in claim 3, wherein each of said second reinforcing ribs (1022) has a lifting hole (103) formed at both ends thereof for lifting the platen and the main transformer coil.

6. A distribution transformer coil dry pressing plate structure as claimed in claim 1, wherein the rectangular pressing plate (101) is provided with a plurality of pressing coil fastening holes (104) therethrough, and the electric transformer coil is press-fitted by bolts penetrating the pressing coil fastening holes (104).

7. A distribution transformer coil dry platen structure according to claim 6, wherein a plurality of said press-fit coil fastening holes (104) are uniformly distributed around the periphery of said rectangular platen (101).

8. A distribution transformer coil dry platen structure according to claim 1, wherein three sets of transformer coils (10) of one transformer can be press-fitted between every two sets of the platen assemblies (1), and fifteen sets of transformer coils (10) of five transformers can be placed on a single layer of the oven trolley board (1000), and thirty sets of transformer coils (10) of ten transformers can be placed on two layers.