CN204792245U - High voltage insulator during thermoplasticity is fire -retardant - Google Patents

Abstract

The utility model relates to a thermoplastic flame-retardant medium and high voltage insulator, which is characterized in that the insulator is cylindrical as a whole, including a copper bar fixed end (1), an insulator fixed end (2), a skirt (3) and a base (4); Wherein, the base (4) is a hollow structure, which is composed of several reinforcing ribs (8) symmetrically distributed. The utility model provides a recyclable flame-retardant insulator with excellent mechanical performance, processing performance and insulation performance.

Description

A thermoplastic flame retardant medium and high voltage insulator

technical field

The utility model relates to various types of insulators used in indoor medium voltage (10-20kV), in particular to a new type of insulator prepared by injection molding using flame-retardant and recyclable modified materials, which has excellent electrical properties such as tracking and tracking, and high mechanical strength. specialty.

Background technique

The continuous advancement of the national smart grid construction and the strategy of giving priority to the development of the distribution network have greatly increased the market demand for medium-voltage primary equipment. At present, most of the insulating parts in these devices use epoxy resin as the base material. The cured epoxy resin has the problem that it cannot be recycled, which is easy to cause environmental pollution, is not conducive to environmental protection, and does not meet the requirements of sustainable development. At the same time, the requirements for flame retardancy of insulating materials in power distribution equipment continue to increase, which will seriously reduce the technical advantages and life cycle of epoxy products. There will be more and more national incentives for the development and application of environmentally friendly switchgear.

Internationally, the application research and development of organic composite insulating materials are being strengthened to achieve the purpose of energy saving and environmental protection. ADD Company of the United States, ERICO Company of France, and ABB Company are mostly developing environmentally friendly thermoplastic composite insulation materials, and the products have been put into use in the power grid, such as solid insulation ring network cabinets, solid-sealed poles made of nylon materials, etc.

The modified material of PA6 is used as the main material of the insulating part of the composite insulating switchgear, and its mechanical properties, wear resistance, corrosion resistance are strong, and the forming processability is good. After filling and toughening modification, its performance is greatly enhanced, and its electrical and mechanical properties fully meet the insulation requirements of composite insulated switchgear. At the same time, PA6 insulating material also has the following characteristics: light weight of raw materials, short production cycle, long life span (up to 30 years), small internal stress after processing, and recyclable reuse; the product production process adopts injection molding process, and the production cost is low. In addition, the material itself is non-toxic, has no irritating odor during the manufacturing process, and does not affect the environment. The product can be recycled and reproduced, which meets the requirements of national sustainable development, and the price is moderate.

The insulator invented by the utility model adopts glass fiber reinforced and flame-retardant thermoplastic resin modified material for direct injection molding, and can be widely used in vacuum circuit breakers, solid insulation ring network cabinets, and electrical components, and has insulation performance similar to epoxy resin. And it has the characteristics of simple processing, recyclable, flame retardant and so on.

Utility model content

The utility model provides a recyclable flame-retardant insulator with excellent mechanical performance, processing performance and insulation performance.

In order to achieve the above goals, the utility model adopts the following technical solutions:

The insulator has a cylindrical shape as a whole, including the fixed end of the copper bar, the fixed end of the insulator, the skirt and the base.

The insulator is directly injection molded with glass fiber reinforced and flame retardant thermoplastic resin modified material.

Further, the fixed end of the above-mentioned copper bar is composed of a central fixing threaded hole and anti-rotation threaded holes symmetrically distributed on both sides.

Further, there is an insulator fixing screw hole in the center of the base.

Further, the above-mentioned base is a hollow structure, which is composed of several reinforcing ribs distributed symmetrically.

Further, all the above-mentioned threaded fixing holes are brass inlays.

The beneficial effects of adopting the technical solution of the utility model are: the raw material is light in weight, the production cycle is short, the life span is long (up to 30 years), the internal stress after processing is small, and the material itself is non-toxic and has no irritation in the manufacturing process Odor, does not affect the environment. The product can be recycled and reproduced, which meets the requirements of national sustainable development.

Description of drawings

In order to make the content of the present invention more clearly understood, below in conjunction with accompanying drawing, this utility model is described in further detail, wherein:

Fig. 1 is a top view schematic diagram of the structure of the utility model;

Fig. 2 is the bottom view schematic diagram of structure of the utility model;

In the figure, 1, copper bar fixed end 2, insulator fixed end 3, skirt 4, base 5, central fixed threaded hole 6, anti-rotation threaded hole 7, insulator fixed threaded hole 8, reinforcing rib.

Detailed ways

This use model adopts following technical scheme:

The insulator has a cylindrical shape as a whole, including the upper copper bar fixed end (1), the insulator fixed end (2), the skirt (3) and the lowermost base (4).

Insulators are injection molded with polymer materials such as polyamide, epoxy resin or rubber, and reinforced with glass fibers, ceramic particles or glass beads. It is preferably directly injection-molded with glass fiber-reinforced and flame-retardant thermoplastic resin modified material.

The skirt is an annular wavy protrusion with uniform intervals.

Further, the fixed end (1) of the above-mentioned copper bar is composed of a central fixing threaded hole (5) and symmetrically distributed threaded holes (6) for preventing rotation on both sides.

Further, there is an insulator fixing threaded hole (7) in the center of the base (4).

Further, the above-mentioned base (4) is a hollow structure, which is composed of several reinforcing ribs (8) distributed symmetrically.

Further, all the above-mentioned threaded fixing holes are brass inlays.

Furthermore, the cylindrical insulator has a diameter ranging from 30 to 200 mm, a height from 30 to 500 mm, and a voltage level of 40.5kV and below.

The above descriptions are only preferred embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (6)

1. A thermoplastic flame-retardant medium and high voltage insulator, characterized in that the insulator is cylindrical as a whole, including copper bar fixed end (1), insulator fixed end (2), skirt (3) and base (4); wherein, The base (4) is a hollow structure and is composed of several reinforcing ribs (8) symmetrically distributed. 2. The thermoplastic flame-retardant medium and high voltage insulator according to claim 1, characterized in that: the insulator is directly injection-molded with glass fiber-reinforced and flame-retardant thermoplastic resin modified material. 3. The thermoplastic flame-retardant medium and high voltage insulator according to claim 1, characterized in that: the fixed end of the copper bar (1) is composed of a central fixed threaded hole (5) and symmetrically distributed anti-rotation threaded holes (6) on both sides. 4. The thermoplastic flame-retardant medium and high voltage insulator according to claim 1, characterized in that: there is an insulator fixing screw hole (7) in the center of the base (4). 5. The thermoplastic flame-retardant medium and high voltage insulator according to claim 1, characterized in that: all threaded fixing holes are brass inlays. 6. The thermoplastic flame-retardant medium and high voltage insulator according to claim 2, characterized in that: the cylindrical insulator has a diameter range of 30 to 200 mm, a height of 30 to 500 mm, and a voltage level of 40.5 kV and below.