Distribution transformer split type high-adaptation iron yoke insulator

Abstract

The utility model belongs to the technical field of transformers, and particularly relates to a distribution transformer split type high-adaptation iron yoke insulating part which comprises an insulating part body. The paperboard layer is arranged at the bottom of the laminated wood main body layer; the paperboard cushion blocks are arranged on the upper end face of the laminated wood body layer at intervals. A conventional insulating part is of an integrated structure, that is, the problems of high processing difficulty and low material utilization rate are caused by processing laminated wood and processing a cushion block and an oil duct groove on the laminated wood, so that in the technical scheme, the insulating part is arranged in a split manner, that is, a laminated wood main body layer and a paperboard cushion block are designed in a split manner; and then the two parts are bonded through the adhesive, so that not only is the processing convenient, but also materials are saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of transformers, and in particular relates to a split-type high-adaptability iron yoke insulating component for a transformer. Background Art

[0002] As voltage is upgraded, steel mills have higher and higher requirements for smelting transformers. The insulation performance of a transformer is an important indicator for evaluating its withstand voltage, and insulation breakdown will directly affect the normal operation of the transformer. As voltage continues to increase, the insulation gap of high-voltage transformers is becoming larger and larger, which puts higher requirements on the performance of the insulation components of high-voltage transformers.

[0003] Transformer yoke insulation parts are mainly used at the upper and lower ends of the transformer coil. Their main functions are oil conduction, mechanical support, and maintaining insulation distance.

[0004] The iron yoke insulation currently on the market has the following problems: the iron yoke insulation is processed using integral laminated wood, the processing cycle of the equipment is long and the material utilization rate is particularly low. Utility Model Content

[0005] The purpose of the utility model is to provide a transformer split type high-adaptability iron yoke insulator to solve the problems raised in the above background technology.

[0006] In order to achieve the above object, the following technical solution is provided: a transformer split type high-adaptability iron yoke insulator, comprising an insulator body, characterized in that the insulator body comprises:

[0007] Laminated wood main body layer;

[0008] A paperboard layer is arranged at the bottom of the laminated wood main body layer;

[0009] And a plurality of cardboard pads are provided and arranged at intervals on the upper end surface of the laminated wood main body layer.

[0010] In the above technical solution, further, the paperboard layer and the laminated wood main body layer, and the laminated wood main body layer and the paperboard pad are bonded in pairs by adhesive.

[0011] In any of the above technical solutions, further, the cardboard pad is a rectangular parallelepiped structure.

[0012] In any of the above technical solutions, further, the insulating member body is semi-elliptical.

[0013] In any of the above technical solutions, further, the thickness of the paperboard layer is 2mm-5mm.

[0014] The beneficial effect of the utility model is that the traditional insulating part is an integrated structure, that is, the laminated wood is processed and the pads and oil channel grooves are processed thereon, which has the problems of high processing difficulty and low material utilization rate. For this reason, in the present technical scheme, the insulating part is set separately, that is, the laminated wood main body layer and the cardboard pad are designed separately, and then the two are bonded by an adhesive. In this way, not only the processing is convenient, but also the material is saved. On the other hand, for the pad, it is required to have a good insulating effect. The present scheme uses cardboard to make the pad, which has a better effect than laminated wood. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Description of reference numerals: 100, laminated wood main body layer; 200, paperboard layer; 300, paperboard pad; 310, oil channel groove. DETAILED DESCRIPTION

[0017] Below, the example embodiments according to the present application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application, and it should be understood that the present application is not limited to the example embodiments described herein. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] It should be noted that, as shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "a kind" and / or "the" do not specifically refer to the singular, but may also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list, and the method or device may also include other steps or elements.

[0019] If the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0020] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0022] The present invention provides an integrated and high-strength ultra-thick transformer conical support member, the structure of which enables it to bear a transformer outlet device of relatively large weight.

[0023] The transformer conical support member of the present application is described in detail through the following embodiments.

[0024] Embodiment 1:

[0025] like Figure 1 As shown, in this embodiment, a transformer split type high-adaptability iron yoke insulator includes an insulator body, and the insulator body includes:

[0026] The laminated wood main body layer 100, as the main body, mainly plays the role of mechanical support;

[0027] The paperboard layer 200 is arranged at the bottom of the laminated wood main body layer 100 and is used to increase the creepage distance of the entire insulating member;

[0028] There are a plurality of cardboard pads which are spaced apart and arranged on the upper end surface of the laminated wood main body layer 100 . The intervals between adjacent cardboard pads form oil channel grooves 310 for heat dissipation.

[0029] The laminated wood main body layer 100 is semi-elliptical, wherein the cardboard pads 300 located in the middle of the laminated wood main body layer 100 are arranged side by side, and the cardboard pads 300 located on both sides of the laminated wood main body layer 100 are arranged radially.

[0030] The traditional insulating component is an integrated structure, that is, the laminated wood is processed and the pads and the oil channel groove 310 are processed thereon. There are problems of high processing difficulty and low material utilization rate. For this reason, in the present technical solution, the insulating component is set separately, that is, the laminated wood main layer 100 and the cardboard pad are designed separately, and then the two are bonded by an adhesive. In this way, not only the processing is convenient, but also materials are saved. On the other hand, the pad is required to have a good insulation effect. The present solution uses cardboard to make the pad, which has a better effect than laminated wood.

[0031] Traditional insulating parts have a short creepage distance. For this reason, the present application designs a cardboard layer 200 at the bottom of the laminated wood main layer 100. The cross-section of the cardboard layer 200 is the same as the cross-section of the laminated wood main layer 100, and the two can also be bonded by an adhesive and then pressed together. The cardboard layer 200 can effectively increase the creepage distance of the entire insulating part.

[0032] Specifically, the cardboard pad is designed as a rectangular parallelepiped structure, which is not only convenient to manufacture, but also has a load-bearing capacity that meets the requirements. The insulating member body is semi-elliptical, and is hollowed out near the center of the circle to reduce weight.

[0033] The parameters of the insulating parts are as follows: the product length is less than 700mm, the width is more than 200mm, the thickness of the cardboard pad is about 15mm, the width is about 25mm, and the thickness of the cardboard is between 2mm-5mm.

[0034] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A transformer split type high adaptability iron yoke insulator, comprising an insulator body, characterized in that: The insulating body comprises: A laminated wood body layer (100); A paperboard layer (200) is arranged at the bottom of the laminated wood main body layer (100); And a plurality of cardboard pads (300) are provided at intervals on the upper end surface of the laminated wood main body layer (100).

2. A transformer split type high adaptability iron yoke insulator as claimed in claim 1, characterized in that: The paperboard layer (200) and the laminated wood main body layer (100), as well as the laminated wood main body layer (100) and the paperboard cushion block (300) are bonded in pairs by adhesive.

3. A transformer split type high adaptability iron yoke insulator as claimed in claim 1, characterized in that: The paperboard cushion block (300) is a rectangular parallelepiped structure.

4. A transformer split type high adaptability iron yoke insulator as claimed in claim 1, characterized in that: The laminated wood main body layer (100) is semi-elliptical, wherein the cardboard pads (300) located in the middle of the laminated wood main body layer (100) are arranged side by side, and the cardboard pads (300) located on both sides of the laminated wood main body layer (100) are arranged radially.

5. A transformer split type high adaptability iron yoke insulator as claimed in claim 1, characterized in that: The thickness of the paperboard layer (200) is 2 mm to 5 mm.

Images