CN218896493U

CN218896493U - Litz wire for preventing core deviation

Info

Publication number: CN218896493U
Application number: CN202223183217.XU
Authority: CN
Inventors: 刘亚兵; 郭守晖; 陈绍良; 李垚; 张建明
Original assignee: Shenzhen Chuangyitong Technology Co Ltd
Current assignee: Shenzhen Chuangyitong Technology Co Ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-04-21
Anticipated expiration: 2032-11-30

Abstract

The utility model discloses a litz wire capable of preventing core deviation, which comprises a plurality of core wires, a plurality of strands of bulletproof wires, an inner quilt and an outer quilt; through once extrusion molding goes out the interior quilt, this is covered many heart yearns and stranded shellproof silk in, the cooperation sets up the overcoat that goes out through secondary extrusion molding, this is covered in the overcoat, the heart yearn is difficult for the eccentric core in the litz wire of this kind of structure, be improved into twice extrusion molding's overcoat and interior quilt with the overcoat of former extrusion molding, make the skin thickness of product more even, the overcoat can not bulge and produce the bubble with interior quilt, the external diameter of product is controlled more accurate, promote the quality of product, reduce the defective rate of product, make the adhesive force of heart yearn in the product higher through twice extrusion molding's mode, the heart yearn is difficult to be taken out when short dimension cuts the processing, thereby effectively increase the intensity of heart yearn is difficult to be pulled out, can not cut off the product when processing skinning, also can not crush the overcoat when follow-up technology is moulded plastics, it is convenient to produce, satisfy current demand.

Description

Litz wire for preventing core deviation

Technical Field

The utility model relates to the technical field of litz wires, in particular to a litz wire capable of preventing core deviation.

Background

Litz wire english term "Litz" as a term derived from the german "litzentraht" means that a conductor is twisted or braided from a plurality of individually insulated conductors. The litz wire is thicker than the enameled wire, and the safety performance is stronger when in use, the anti-interference performance is better, and the application is very extensive.

Typical applications of litz wire are: high frequency inductors, transformers, frequency converters, fuel cells, motors, communications, IT equipment, ultrasonic equipment, sonar equipment, televisions, radios, induction heating equipment, and the like.

The prior litz wire is various, the common structure with a plurality of core wires and a plurality of strand bulletproof wires coated on the outer cover is produced by extrusion molding the outer cover at one time, the operation is simple, but the core wires in the litz wire are easy to deviate from the core wires, the thickness of the outer cover is uneven, the outer cover is easy to bulge and generate bubbles, the outer diameter of the product is wholly over the upper limit, the quality of the product is influenced, the reject ratio of the product is higher, the adhesive force of the core wires in the product is lower, the core wires are easy to be drawn out during cutting and processing in short size, the strength of the core wires is low to be broken easily, the product can be cut off during processing peeling, the outer cover can be crushed during subsequent process injection molding, the production is inconvenient, and the prior requirements can not be met.

Disclosure of Invention

In view of the above, the present utility model aims at overcoming the defects of the prior art, and the main purpose of the present utility model is to provide a litz wire capable of preventing core misalignment, which can effectively solve the problems that the core wire of the prior litz wire is easy to deviate, the thickness of the outer coating is uneven, the outer coating is easy to bulge and generate bubbles, the outer diameter of the product is over upper limit, the product quality is affected, the adhesion force of the core wire is low, the core wire is easy to be drawn out during short-dimension cutting processing, the strength of the core wire is low and is easy to be broken, the product is cut off during processing peeling, and the outer coating is easy to be crushed during the subsequent process injection molding.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a litz wire capable of preventing core deflection comprises a plurality of core wires, a plurality of bulletproof wires, an inner quilt and an outer quilt; the inner quilt covers the plurality of core wires and the multi-strand bulletproof wires, and the inner quilt covers the plurality of core wires and the multi-strand bulletproof wires through one-time extrusion molding; the outer quilt covers the inner quilt by secondary extrusion molding.

As a preferable scheme, the number of the core wires is three, the number of the bulletproof wires is four, the three core wires and the four bulletproof wire cages are twisted and wound together, and the three bulletproof wires are respectively positioned between the two corresponding adjacent core wires.

As a preferable mode, the core number of the core wire is seven.

As a preferable scheme, the inner quilt and the outer quilt are made of PA materials.

As a preferred solution, the inner quilt and the outer quilt are transparent structures.

As a preferable scheme, the outer diameter of the inner quilt is 0.55-0.65mm.

As a preferable scheme, the outer diameter of the coating is 0.9+/-0.03 mm.

Compared with the prior art, the utility model has obvious advantages and beneficial effects, and in particular, the technical scheme can be as follows:

through once extrusion molding goes out the interior quilt, this is covered a plurality of heart yearns and stranded shellproof silk in, the cooperation sets up the overcoat that goes out through secondary extrusion molding, this is covered the interior quilt in this outer quilt, the heart yearn is difficult for the eccentric core in the litz wire of this kind of structure, be the outer quilt of the preceding extrusion molding of time is improved into twice extrusion molding and is covered by in, make the skin thickness of product more even, the outer quilt can not bulge and produce the bubble with the interior quilt, the external diameter of product is controlled more accurate, promote the quality of product, greatly reduced product's defective rate, and, make the adhesive force of heart yearn in the product higher through twice extrusion molding's mode, the heart yearn is difficult to be taken out when cutting processing by short length, thereby effectively increase the intensity of heart yearn is difficult to be broken, can not cut off the product when processing is peeled off, also can not crush the outer quilt when follow-up technology is moulded, bring convenience for production, satisfy current demand.

In order to more clearly illustrate the structural features and efficacy of the present utility model, the present utility model will be described in detail below with reference to the accompanying drawings and examples.

Drawings

FIG. 1 is a cross-sectional view of a preferred embodiment of the present utility model.

The attached drawings are used for identifying and describing:

10. core wire 20, bullet-proof yarn

30. An inner quilt 40 and an outer quilt.

Detailed Description

Referring to fig. 1, there is shown a specific structure of a preferred embodiment of the present utility model, which comprises a plurality of core wires 10, a plurality of ballistic wires 20, an inner jacket 30 and an outer jacket 40.

The inner cover 30 covers the plurality of core wires 10 and the plurality of bulletproof wires 20, and the inner cover 30 covers the plurality of core wires 10 and the plurality of bulletproof wires 20 by one-time extrusion molding; in the embodiment, the number of the core wires 10 is three, the number of the bulletproof wires 20 is four, the three core wires 10 and the four bulletproof wires 20 are twisted together in a cage, and the three bulletproof wires 20 are respectively positioned between the two corresponding adjacent core wires 10; the core number of the core wire 10 is seven; the inner quilt 30 is made of PA material; the inner quilt 30 is a transparent structure; the outer diameter of the inner quilt 30 is 0.55-0.65mm.

The outer quilt 40 is formed by secondary extrusion to cover the inner quilt 30; in this embodiment, the outer cover 40 is made of PA material; the outer envelope 40 is a transparent structure; the outer diameter of the outer envelope 40 is 0.9 + -0.03 mm.

The manufacturing process of this embodiment is described in detail as follows:

firstly, forming a plurality of core wires 10 and a plurality of bulletproof wires 20; then, an inner quilt 30 is formed by one-time extrusion, the inner quilt 30 covers the plurality of core wires 10 and the multi-strand bulletproof wires 20, and the outer diameter of the inner quilt 30 formed by one-time extrusion is 0.55-0.65mm; then, the outer coating 40 is formed by secondary extrusion, the outer coating 40 covers the inner coating 30, and the outer diameter of the secondary extrusion formed outer coating 40 is 0.9 + -0.03 mm.

The design focus of the utility model is that: through once extrusion molding goes out the interior quilt, this is covered a plurality of heart yearns and stranded shellproof silk in, the cooperation sets up the overcoat that goes out through secondary extrusion molding, this is covered the interior quilt in this outer quilt, the heart yearn is difficult for the eccentric core in the litz wire of this kind of structure, be the outer quilt of the preceding extrusion molding of time is improved into twice extrusion molding and is covered by in, make the skin thickness of product more even, the outer quilt can not bulge and produce the bubble with the interior quilt, the external diameter of product is controlled more accurate, promote the quality of product, greatly reduced product's defective rate, and, make the adhesive force of heart yearn in the product higher through twice extrusion molding's mode, the heart yearn is difficult to be taken out when cutting processing by short length, thereby effectively increase the intensity of heart yearn is difficult to be broken, can not cut off the product when processing is peeled off, also can not crush the outer quilt when follow-up technology is moulded, bring convenience for production, satisfy current demand.

The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the technical scope of the present utility model, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical principles of the present utility model are still within the scope of the technical solutions of the present utility model.

Claims

1. A litz wire for preventing core misalignment, characterized by: comprises a plurality of core wires, a plurality of bulletproof wires, an inner quilt and an outer quilt; the inner quilt covers the plurality of core wires and the multi-strand bulletproof wires, and the inner quilt covers the plurality of core wires and the multi-strand bulletproof wires through one-time extrusion molding; the outer quilt covers the inner quilt by secondary extrusion molding.

2. The core shift preventing litz wire according to claim 1, wherein: the three core wires are four bulletproof wires, the three core wires and the four bulletproof wire cages are twisted together, and the three bulletproof wires are respectively positioned between the two corresponding adjacent core wires.

3. The core shift preventing litz wire according to claim 1, wherein: the core number of the core wire is seven.

4. The core shift preventing litz wire according to claim 1, wherein: the inner quilt and the outer quilt are made of PA materials.

5. The core shift preventing litz wire according to claim 1, wherein: the inner quilt and the outer quilt are transparent structures.

6. The core shift preventing litz wire according to claim 1, wherein: the outer diameter of the inner quilt is 0.55-0.65mm.

7. The core shift preventing litz wire according to claim 1, wherein: the outer diameter of the outer coating is 0.9+/-0.03 mm.