CN2533577Y

CN2533577Y - Al-Cu two-based conductive contact

Info

Publication number: CN2533577Y
Application number: CN 01278810
Authority: CN
Inventors: 向世芬
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-12-20
Filing date: 2001-12-20
Publication date: 2003-01-29
Anticipated expiration: 2011-12-20

Abstract

The utility model which discloses an aluminum-bronze double-base conductive connector is specifically suitable in electrode conductive connectors needed in the production of the industry electrolytic zinc. The utility model comprises an aluminum part and a bronze double-base, and the bronze part is coated and casted in the aluminum, and one end of the bronze is exposed as a conductive terminal, and a step type notch is arranged between two ends or one end of the conductive terminal and the bronze base body. The connector optimizes the mass resistivity of the aluminum-bronze contact surface, reduces the current density loaded by the connector, avoids the overheating of the connector and prolongs the service life of the connector.

Description

A kind of Al-Cu two-based conductive contact

Technical field:

The utility model belongs to a kind of Al-Cu two-based conductive contact, is specially adapted to required electrodes conduct joint in the production of industrial electrolysis zinc.

Background technology:

Making conductive contact with Al-Cu two-based is a kind of current electrode joint of industrial electrolysis industry, the quality and the important parameter in life-span that influence conductive contact are the ratio resistance of aluminum bronze joint portion, the patent of invention " electrically conductive terminal cast with Al-Cu alloy " that the applicant once applied on January 18th, 2000, application number: 00100352, a kind of casting method of aluminum bronze conductive contact and the aluminum bronze conductive contact of making of this method are disclosed, the conductive contact that in the embodiment of application, proposes, the most approaching with the application, conductive contact is formed by aluminum component and the casting of copper spare, copper spare is coated by aluminum component, and a termination of copper spare is exposed and is used as conducting terminal.

Summary of the invention:

The purpose of this utility model is to disclose a kind of Al-Cu two-based conductive contact of new structure, and the shape of copper spare has been done improvement, optimizes the ratio resistance of aluminum bronze contact-making surface in the conductive contact, improves the useful life of conductive contact.

The copper spare of existing conductive contact is the side or the rectangular plate body of a rule, the hole that processes on the copper spare or the purpose of groove are in order to improve the bonding strength with aluminum component, find through experiment, under the condition of the voltage and current of the identical size of copper spare conducting terminal load, the area that copper spare contacts with aluminum component is bigger, the current density of being carried between this conductive contact aluminum component and the copper spare is littler, performance better, the life-span of conductive contact is also just long.Al-Cu two-based conductive contact disclosed in the utility model is characterised in that the cross section of its copper spare conducting terminal is coated the cross section of matrix less than copper spare.That is to say conducting terminal to same cross-sectional, the surface of the base body of its copper spare is big as much as possible, copper spare increases with the contact area of aluminum component is also just corresponding like this, the current density that aluminum bronze contact-making surface unit are is carried is also with regard to corresponding minimizing, avoid the excessive heating of conductive contact, prolonged the useful life of conductive contact.

In the enforcement, for making things convenient for the production and processing of conductive contact, the utility model adopts following processing method, conductive contact to same size, the specification of corresponding increase copper spare is carried out machining again to the conductive contact after the casting when casting, and the both sides of the copper conducting terminal that will expose or a side and aluminum component mill flat, make to form a staircase structural model between copper spare conducting terminal and the copper spare matrix, the cross section of copper spare conducting terminal is less than the cross section of copper spare matrix.Make the aluminum bronze conductive contact of same size like this, copper spare conducting terminal is identical, and the contact-making surface of aluminum bronze increases, and has improved the useful life and the quality of conductive contact.Below in conjunction with the embodiment accompanying drawing this application is described in further detail.

Description of drawings:

Fig. 1 is the external structure signal of aluminum bronze conductive contact in the prior art

Fig. 2 is the stereochemical structure signal of the application's Al-Cu two-based conductive contact

Fig. 3 is the planar structure of copper spare 2 among Fig. 2

Fig. 4 is the copper spare planform signal of another embodiment

Specific implementation method:

As shown in Figure 1, the aluminum bronze conductive contact aluminum component 1 of prior art coats copper spare 2, and copper spare 2 is the square tabular of a rule.Fig. 2, Fig. 3 and the disclosed Al-Cu two-based conductive contact structure of the application shown in Figure 4, copper spare 2 still is covered by in the aluminum component 1, different is that copper spare 2 can be divided into conducting terminal 3 that exposes and matrix 8 two parts that coated, and the cross section 4 of conducting terminal 3 is less than the cross section 7 of copper spare matrix.For realizing this purpose, the application provides two kinds of schemes, the first is processed to form a step breach 5,6 respectively between the both sides of conducting terminal 3 and copper spare matrix 8, another kind of scheme is to be processed to form a step breach 9 between a side of conducting terminal 3 and copper spare matrix 8, these two kinds of methods can reach the cross section of the cross section of conducting terminal less than copper spare matrix, make conductive contact performance under identical load-up condition better, the life-span is longer, and cost is lower.

Claims

1, a kind of Al-Cu two-based conductive contact is formed by aluminum component and the casting of copper spare, and copper spare is covered by in the aluminum component, and an end of copper spare is exposed to be used as conducting terminal, it is characterized in that the cross section of the cross section of copper spare conducting terminal less than copper spare matrix.

2, Al-Cu two-based conductive contact as claimed in claim 1, the matrix and the conducting terminal of copper spare are structure as a whole, and it is characterized in that having between the one or both sides of conducting terminal and the matrix breach of a step.