CN201984874U

CN201984874U - Enameled aluminum round wire with three coatings and high heatproof grade

Info

Publication number: CN201984874U
Application number: CN2011200504344U
Authority: CN
Inventors: 曾东文; 李善道
Original assignee: TONGLING JINGLONG ELECTRIC MATERIAL CO Ltd
Current assignee: TONGLING JINGLONG ELECTRIC MATERIAL CO Ltd
Priority date: 2011-03-01
Filing date: 2011-03-01
Publication date: 2011-09-21
Anticipated expiration: 2021-03-01

Abstract

The present utility model discloses an enameled aluminum round wire with three coatings and high heatproof grade. The wire comprises an aluminum conductor (1) and a coat of paint for wrapping the aluminum conductor. The wire is characterized in that the coat of paint comprises three layers, an inner layer (2) is a modified polyester paint coating, a middle layer (3) is a polyester imine paint coating, and an outer layer (4) is a polyamidoimide paint coating. The wire avoids the problem that aluminum enameled wires have no adhesiveness, the wire has good effect in resisting heat, solvent, and especially refrigerant, the heat grade is increased to 220 DEG C by the outer layer, the skin-friction coefficient is greatly reduced, and the stretch is smaller when the wire is used.

Description

High thermal endurance class three coating enamelled round aluminium wire with

Technical field

The utility model relates to enamelled round aluminium wire with, especially the overlay of enamelled round aluminium wire with.

Background technology

Lasting high along with copper valency in recent years, the aluminium of enamelled wire conductor occurs in succession for copper products.Its production technology is on the whole identical with the copper conductor enamelled wire, earlier the aluminium bar is drawn into the aluminum steel of corresponding specification, and again at its surface applied corresponding insulation paint, this product is applied on the product such as micro-wave oven transformer refrigerator compressor.Because aluminium conductor itself makes that the temperature rise of aluminium enamel-covered wire is big than copper cash, this just requires the temperature capacity of aluminium enamel-covered wire to be eager to excel.

According to present enamel insulated aluminium wire manufacturing technology and technology, and corresponding national, international standard requirement, the applicability that the product of producing often can't reach the user requires: after coil winding machine high speed, hightension coiling, aluminium enamel-covered wire can't bear, thereby the problem that paint film breaks, leaks electricity takes place, perhaps use back turn-to-turn electric current excessive, perhaps anti-ly can't stand long high temperature environment for use and burn through energising.There is safety problem in therefore existing enamelled round aluminium wire with.

The utility model content

The purpose of this utility model is exactly to solve enamelled round aluminium wire with the safety problem that paint film breaks, leaks electricity easily takes place, and a kind of high thermal endurance class three coating enamelled round aluminium wire with are provided.

The technical solution adopted in the utility model is: high thermal endurance class three coating enamelled round aluminium wire with, it comprises the coat of paint of aluminum conductor and parcel aluminum conductor, it is characterized in that the described coat of paint is three layers, internal layer is a modified poly ester paint overlay, the middle level is a polyester-imide paint overlay, and outer is that polyamidoimide paints overlay.

Adopt technique scheme, owing to adopt modified poly ester paint overlay as basic unit, overcome polyester-imide paint effectively as basic unit itself and the not enough problem of aluminium conductor surface combination power, avoided aluminium enamel-covered wire to lose the problem of tack, again because inter coat uses polyimides paint overlay, so its heat-resisting and anti-solvent, particularly cold-resistant matchmaker's problem are resolved.Outfield is polyamide coating acid imide paint overlay again, make aluminium enamel-covered wire especially thermal level brought up to 220 degree, skin-friction coefficient greatly reduces simultaneously, what be stretched in the use is much smaller.

The utility model beneficial effect is: because the utility model adopts three layers of different paint overlay, make the utility model avoid aluminium enamel-covered wire to lose the problem of tack, its heat-resisting and anti-solvent, particularly cold-resistant matchmaker are effective, skin makes thermal level bring up to 220 degree, skin-friction coefficient greatly reduces simultaneously, and what be stretched in the use is much smaller.

Description of drawings

Fig. 1 is the utility model schematic diagram.

Embodiment

The high thermal endurance class three coating enamelled round aluminium wire with of the utility model, as shown in Figure 1, it comprises the coat of paint of aluminum conductor 1 and parcel aluminum conductor, the coat of paint is three layers, internal layer 2 is modified poly ester paint overlay, and middle level 3 is polyester-imide paint overlay, and outer 4 are polyamidoimide paint overlay.

Claims

1. high thermal endurance class three coating enamelled round aluminium wire with, it comprises the coat of paint of aluminum conductor (1) and parcel aluminum conductor, it is characterized in that the described coat of paint is three layers, internal layer (2) is modified poly ester paint overlay, middle level (3) is polyester-imide paint overlay, and outer (4) are polyamidoimide paint overlay.