CN216562568U

CN216562568U - Nickel plating tin-plating phosphorus bronze wire for relay

Info

Publication number: CN216562568U
Application number: CN202123262413.1U
Authority: CN
Inventors: 朱向阳; 胡甲冒
Original assignee: Jiangyin Six Cirque Alloy Wire Co ltd
Current assignee: Jiangyin Six Cirque Alloy Wire Co ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-05-17
Anticipated expiration: 2031-12-23

Abstract

The utility model discloses a nickel plating tin-plating phosphor bronze wire for a relay, which comprises wire cores and a protective sleeve arranged outside the wire cores, wherein the wire cores comprise a middle wire core positioned in the middle and a plurality of external wire cores arranged in a tangent manner with the middle wire core, the middle wire core comprises a first phosphor bronze core and a first nickel layer arranged outside the first phosphor bronze core, each external wire core comprises a second phosphor bronze core, a second nickel layer arranged outside the second phosphor bronze core and a tin layer arranged outside the second nickel layer, and the diameter of the middle wire core is smaller than that of the external wire cores.

Description

Nickel plating tin-plating phosphorus bronze wire for relay

Technical Field

The utility model relates to a nickel-plated tin-phosphorus-plated bronze wire for a relay.

Background

The phosphorus bronze wire for the relay in the prior art usually adopts a nickel-plated tin-plated phosphorus bronze wire, and has the advantages of light weight, material saving, large contact surface and good conductivity for a single-core phosphorus bronze wire, but for a multi-core phosphorus bronze wire, the resistivity of a single wire of a compressed conductor is more obvious in the change of the resistivity of the single wire because the resistivity of the single wire basically changes more or less after twisting, which is particularly obvious in the embodiment of the copper material at present because the internal crystal structure of the metal changes correspondingly in the cold processing process, so that the resistivity of the conductor changes, and therefore a multi-core structure is necessary to be designed to avoid the phenomenon.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art, and provides a nickel-plated tin-phosphorus-plated bronze wire for a relay, which has a compact structure, avoids resistivity change and can prevent a multi-core from being loosened during extrusion molding.

In order to realize the technical effects, the technical scheme of the utility model is as follows: the utility model provides a relay is with nickel plating tin-plating phosphorus bronze wire, include the sinle silk, set up in the lag in the sinle silk outside, the sinle silk including be located middle sinle silk, a plurality of with the tangent outside sinle silk that sets up of middle sinle silk, middle sinle silk include first phosphorus bronze core, set up in the first nickel layer in the first phosphorus bronze core outside, every outside sinle silk all includes second phosphorus bronze core, set up in the second nickel layer in the second phosphorus bronze core outside, set up in the tin layer in the second nickel layer outside, middle sinle silk diameter is less than outside sinle silk diameter.

In a further improvement, the first nickel layer and the second nickel layer are both nickel-plated layers, and the tin layer is a tin-plated layer.

In a further refinement, the thickness of the tin layer is greater than the thickness of the second nickel layer.

In a further improvement, the tin layer is 100% pure tin, and the first nickel layer and the second nickel layer are both nickel with purity of more than 99.9%.

The utility model has the advantages and beneficial effects that: adopt the multicore structure of tangent setting of middle sinle silk plus a plurality of outside sinle silks, the tin-plated layer and the nickel-plated layer of outside sinle silk can bear high temperature and corrosion resistance good, and the nickel-plated layer of middle sinle silk guarantees high temperature resistance, and it need not to strand the change of having avoided the resistivity from this, can not produce the pine strand phenomenon during the extrusion molding moreover.

Drawings

FIG. 1 is a schematic diagram of the present invention.

Wherein: 1. a first phosphorus bronze core; 2. a first nickel layer; 3. a second phosphorus bronze core; 4. a second nickel layer; 5. and a tin layer.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1, a relay is with nickel plating tin-plating phosphorus bronze wire, including the sinle silk, set up in the lag in the sinle silk outside, the sinle silk including be located middle sinle silk, a plurality of with the tangent outside sinle silk that sets up of middle sinle silk, middle sinle silk include first phosphorus bronze core, set up in the first nickel layer 2 in the 1 outside of first phosphorus bronze core, every outside sinle silk all includes second phosphorus bronze core 3, set up in the second nickel layer 4 in the 3 outsides of second phosphorus bronze core, set up in the tin layer 5 in the 4 outsides of second nickel layer, middle sinle silk diameter is less than outside sinle silk diameter.

In this embodiment, preferably, the first nickel layer 2 and the second nickel layer 4 are both nickel plating layers, the tin layer 5 is a tin plating layer, the tin layer is 100% pure tin, and the first nickel layer 2 and the second nickel layer 4 are both nickel with a purity greater than 99.9%.

The thickness of the tin layer 5 is greater than the thickness of the second nickel layer 4, typically the tin layer 5 is 3-5 μm thick and the nickel layer is 2 μm thick.

During manufacturing, nickel plating is firstly carried out on the phosphor bronze bottom layer, a part of products after nickel plating is finished serve as a middle wire core, in addition, tin plating is carried out to serve as an outer wire core, and when extrusion molding is carried out after the completion, a plurality of wire cores are combined and then inserted into corresponding sizing sleeves to be subjected to extrusion molding, so that loose wire cores are not generated, twisting is not needed, and the resistivity of a single core is ensured.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a relay is with nickel plating tin-plating phosphorus bronze wire, include the sinle silk, set up in the lag in the sinle silk outside, its characterized in that, the sinle silk including be located middle sinle silk, a plurality of with the tangent outside sinle silk that sets up of middle sinle silk, middle sinle silk include first phosphorus bronze core, set up in the first nickel layer in the first phosphorus bronze core outside, every outside sinle silk all includes second phosphorus bronze core, set up in the second nickel layer in the second phosphorus bronze core outside, set up in the tin layer in the second nickel layer outside, middle sinle silk diameter is less than outside sinle silk diameter.

2. The relay nickel-plated tin-phosphorus-plated bronze wire according to claim 1, wherein the first nickel layer and the second nickel layer are both nickel-plated layers, and the tin layer is a tin-plated layer.

3. The relay nickel-plated tin-phosphorus-plated bronze wire according to claim 2, wherein the thickness of said tin layer is greater than the thickness of said second nickel layer.

4. The relay nickel plating tin-phosphorus-plated bronze wire according to claim 1, wherein the tin layer is 100% pure tin, and each of the first nickel layer and the second nickel layer is nickel having a purity of more than 99.9%.