CN201345588Y - High-temperature resistant ring-shaped insulating plate - Google Patents

Abstract

A high-temperature resistant ring-shaped insulating plate adopts a ring-shaped plate (1); a plurality of bolt holes (2) of the motor base are formed on the plate; the ring-shaped plate (1) is formed by a plurality of layers of alkali-free glass fiber cloth (3) through compounding; and organic silica gel layers (4) are filled among the alkali-free glass fiber cloth layers. As the insulating plate is formed by layers of alkali-free glass fiber cloth (3) through compounding, and organic silica gel layers are filled among the alkali-free glass fiber cloth layers, the utility model has the advantages that the heat resistance is higher; the insulating plate can stand high temperature within 580 DEG; the insulating property is good; the power frequency dielectric strength is up to 19.8KV/mm; and the mechanical strength is better at the same time, thereby being suitable for the anti-creeping of a circular horizontal motor.

Description

High temperature resistant ring insulation board

technical field

The utility model relates to a plate-shaped isolation part installed between a motor base and a foundation, and a high-temperature-resistant annular insulating plate.

Background technique

In various industries, all kinds of motors are widely used, some are installed on the cement seat on the ground, some are installed on the machine, and some are installed on components made of various metal materials. The input voltage of the motor is usually 380V or 220V in our country, which belongs to strong electricity. In the entire equipment or the entire transmission system, the motor is the input end of the current and the place where leakage is most likely to occur. Once a leakage accident occurs in the motor, the entire metal and equipment connected to the base of the motor will become charged, which is prone to electric shock casualties. Therefore, in the transmission equipment with high safety factor requirements, in order to prevent the leakage of the transmission mechanism and improve the safety performance of the equipment, a set of leakage protection devices, such as electronic leakage protectors, are often installed in the equipment. This kind of leakage protection device has a high investment cost, and the users and installers of the equipment should have certain electrician knowledge, and at the same time, the circuit system itself is prone to failure.

Contents of the invention

The purpose of this utility model is to propose a structure of an insulating plate for a motor base, a high-temperature-resistant annular insulating plate, which has good insulating performance, high heat resistance, and good mechanical strength.

The high-temperature-resistant annular insulating plate is an annular plate with several motor seat bolt holes on the plate. The annular plate is composed of multiple layers of non-alkali glass fiber cloth, and the layer of organic silica gel is filled between the non-alkali glass fiber cloth.

This high-temperature-resistant ring-shaped insulation board is compounded with non-alkali glass fiber cloth, and the organic silica gel layer is filled between the non-alkali glass fiber cloth, so it has good insulation performance, high heat resistance, and good insulation performance. Mechanical strength, installing it under the base of the motor can play a good role in leakage interruption.

Description of drawings

Fig. 1 is the outline drawing of this high temperature resistant annular insulating plate;

Fig. 2 is A-A sectional view.

Detailed ways

As shown in FIG. 1 , the high-temperature-resistant annular insulating plate is an annular plate 1 with several bolt holes 2 for motor mounts. As shown in FIG. 2 , the annular plate 1 is composed of multiple layers of non-alkali glass fiber cloth 3 , and an organic silica gel layer 4 is filled between the non-alkali glass fiber cloth.

The alkali-free glass fiber cloth and organic silica gel composite used in this high-temperature-resistant annular insulating board is filled with high-temperature-resistant organic silica gel between the glass fiber cloths and in the gaps between the glass fiber cloths. It has excellent heat resistance and can withstand 580 High temperature within ℃; the insulation performance is also very good, the power frequency dielectric strength reaches 19.8kv/mm; and it has good mechanical strength and can be machined. Installing this high-temperature-resistant annular insulating plate under the base of the motor can play a good role in breaking leakage current. This high temperature resistant annular insulating plate is suitable for the installation of circular vertical motors.

The non-alkali glass fiber cloth in this high-temperature-resistant annular insulating board can be medium-thick non-alkali glass fiber cloth, evenly coated with organic silica gel on the glass fiber cloth, laminated, placed on a temperature-controlled hot press, Warm and pressurized to make a plate, and then the plate is machined by cutting, turning, drilling, etc. to make the required product shape.

Claims (1)

1. A high-temperature-resistant annular insulating plate, which is an annular plate (1) with several motor seat bolt holes (2), characterized in that the above-mentioned annular plate (1) is made of multi-layer alkali-free glass fiber cloth (3 ) are composited together, and an organic silica gel layer (4) is filled between the non-alkali glass fiber cloths.

Images