CN215577738U

CN215577738U - Enameled stranded wire for high-frequency circuit

Info

Publication number: CN215577738U
Application number: CN202122177318.5U
Authority: CN
Inventors: 曹晓飞; 赖志锋
Original assignee: Dongguan Jinjieyuan Electronic Material Co ltd
Current assignee: Dongguan Jinjieyuan Electronic Material Co ltd
Priority date: 2021-09-09
Filing date: 2021-09-09
Publication date: 2022-01-18
Anticipated expiration: 2031-09-09

Abstract

The utility model discloses an enameled stranded wire for a high-frequency circuit, which is formed by stranding more than two enameled single wires, wherein a reinforcing core is arranged at the center of the stranded wire, and braided insulating wires are wound on the peripheries of a plurality of enameled single wires. According to the utility model, the twisted wires are internally provided with the plurality of enameled single wires, so that the influence of the skin effect on the electric wire can be reduced, and the Q value of the electric wire is improved; the reinforcing core is arranged in the stranded wire, so that the bending resistance of the stranded wire can be enhanced; the enameled stranded wire is provided with the braided insulating wire, so that the stranded wire has excellent flexibility and surface adherence; through using hollow enameled single wire, can reduce enameled single wire cost, alleviate enameled single wire weight, simultaneously, the heat radiating area of multiplicable sinle silk accelerates enameled single wire and stranded conductor heat dissipation for the operating temperature of stranded conductor is lower, is favorable to the safe operation of circuit.

Description

Enameled stranded wire for high-frequency circuit

Technical Field

The utility model relates to the technical field of wires and cables, in particular to an enameled stranded wire for a high-frequency circuit.

Background

With the rapid development of electronic technology, the functions of electronic products are more and more integrated, the load of the line is larger, and the requirements on the wire cable carrying the line are higher and higher, and the wire cable not only needs to meet the requirements of signal transmission, but also needs to meet the requirements in the aspects of mechanical performance and the like.

In a high-frequency circuit, due to the skin effect, the circuit density in a wire is large in surface and small or even negligible in the middle, so that the actual section of the wire is reduced, the resistance is increased, and the loss of the wire is large.

Therefore, the utility model improves the internal structure of the wire, so that the wire can better meet the use requirement of a high-frequency circuit, reduces the loss of the circuit and has better mechanical performance.

SUMMERY OF THE UTILITY MODEL

In view of the problems in the prior art, the utility model provides an enameled stranded wire for a high-frequency circuit, which has the advantages of good flexibility and adhesiveness, stable and low operation, small resistance loss, high Q value and suitability for circuits with large loads such as high frequency and the like.

In order to solve the technical problems, the utility model adopts a technical scheme as follows:

an enameled stranded wire for a high-frequency circuit is formed by stranding more than two enameled single wires, a reinforcing core is arranged at the center of the enameled stranded wire, and a plurality of enameled single wires are spirally wound on the periphery of the reinforcing core; and the peripheries of the plurality of enameled single wires are wound with braided insulating wires. As a further elaboration of the above technical solution:

in the technical scheme, each enameled single wire comprises a wire core with a hollow structure and an insulating paint film uniformly coated on the periphery of the wire core.

In the technical scheme, the thickness of the paint film on each enameled single wire is between 5% and 12% of the diameter of the wire core.

In the above technical solution, the reinforcing core is a cylindrical reinforcing core, and the interior of the cylindrical reinforcing core is filled with graphite fibers.

In the technical scheme, the knitted insulating yarn is knitted polyester yarn or knitted acetate yarn.

In the technical scheme, the thickness of the insulating wire is between 2% and 10% of the diameter of the stranded wire.

Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the enameled single wires are arranged in the stranded wires, so that the overcurrent area can be increased under the same cross section, the influence of the skin effect on the electric wire is reduced, the resistance loss of the stranded wires is reduced, the Q value is improved, and the enameled single wires can be applied to circuits with larger load and high working frequency; the reinforcing core is arranged in the stranded wire, so that the bending resistance of the stranded wire can be enhanced, and the mechanical performance of the stranded wire is improved; the enameled stranded wire is provided with the braided insulating wire, so that the stranded wire has good flexibility and adhesiveness, the problem that a wrapped wire is easy to fall off is solved, and the stranded wire has excellent flexibility and surface adhesiveness; through using hollow enameled single wire, can save the material that does not have the central part that the electric current passes through hardly because of skin effect in the sinle silk, can reduce enameled single wire cost, alleviate enameled single wire weight, simultaneously, the heat radiating area of multiplicable sinle silk accelerates enameled single wire and stranded conductor heat dissipation for the operating temperature of stranded conductor is lower, is favorable to the safe operation of circuit.

Drawings

FIG. 1 is a schematic cross-sectional structure of the present invention;

FIG. 2 is a schematic diagram of the structure of an enameled single wire in the present invention;

in the figure: 1. coating single wires with paint; 2. a reinforcing core; 3. weaving an insulating wire; d. wire core diameter; D. the diameter of the stranded wire; h1, paint film thickness; h2, insulating filament thickness; 11. a wire core; 12. and (4) insulating paint films.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiments described by referring to the drawings are exemplary and intended to be used for explaining the present application and are not to be construed as limiting the present application. In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate. In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

As shown in fig. 1-2, an enameled stranded wire for a high-frequency circuit is formed by stranding more than two enameled single wires 1, a reinforcing core 2 is arranged at the center of the enameled stranded wire, and a plurality of enameled single wires 1 are spirally wound on the periphery of the reinforcing core 2; the periphery of the plurality of enameled single wires 1 is wound with braided insulating wires 3.

According to the utility model, the enameled single wires 1 are arranged in the stranded wires, so that the overcurrent area can be increased under the same cross section, the influence of skin effect on the wire is reduced, the Q value of the refreshing wire is increased, and the enameled single wires can be applied to a line with larger load and high working frequency; the reinforcing core 2 is arranged in the stranded wire, so that the bending resistance of the stranded wire can be enhanced, and the mechanical performance of the stranded wire is improved; through weaving insulating silk 3 in enameled wire setting for the stranded conductor has good compliance and adhesion, has overcome simultaneously around the problem that the package silk envelope curve takes off the silk easily, makes the stranded conductor present excellent pliability and surface adhesion.

Further, each enameled single wire 1 comprises a wire core 11 with a hollow structure and an insulating paint film 12 uniformly coated on the periphery of the wire core.

The utility model applies the hollow enameled single wire 1, can save the material of the central part of the wire core 11 through which almost no current passes due to skin effect, and achieves the purposes of reducing the cost of the enameled single wire 1 and lightening the weight of the enameled single wire 1. Meanwhile, the hollow structure can increase the heat dissipation area of the wire core 11 and accelerate the heat dissipation of the enameled single wire 1, so that the purpose of accelerating the heat dissipation of the stranded wire is achieved, the running temperature of the stranded wire is lower, and the safe running of a circuit is facilitated.

Furthermore, the thickness H1 of the paint film on each single enamel wire 1 is between 5% and 12% of the diameter d of the wire core.

It can be understood that if the paint film thickness H1 is too small, the pressure resistance of the single enamelled wire 1 will be reduced; and the thickness of the paint film which is too thick can enlarge the outer diameters of the enameled single wires 1 and the stranded wires, and increase the using amounts of the insulating paint film 12 and the braided insulating wires 13, but the use is safer and more reliable. When in application, the appropriate paint film thickness H1 can be selected according to the application. In the present example, the paint film thickness H1 is 7% of the core diameter d.

Further, the reinforcing core 2 is a cylindrical reinforcing core, and graphite fibers are filled in the cylindrical reinforcing core.

In the process of filling and twisting the graphite fibers, the high-temperature-resistant adhesive added in the process can wind the shorter graphite fibers into a reinforcing body with higher strength and longer length, so that the aim of enhancing the mechanical performance of the whole stranded wire is fulfilled, and the bending resistance of the stranded wire is improved.

Further, the braided insulating yarn 3 is a braided polyester yarn or a braided acetate yarn.

Further, the thickness H2 of the insulation wire is between 2% and 10% of the diameter D of the strand.

In the embodiment, the direction of the braided insulating wire 3 is consistent with and basically parallel to the direction of the enameled single wire 1, so that the insulating wire can be prevented from being tightened too tightly to increase the hardness of the outer surface of the stranded wire, and the stranded wire can be braided to have excellent flexibility and adhesiveness.

The technical scope of the present invention is not limited to the above embodiments, and any modifications, equivalent variations and modifications made to the above embodiments according to the technical spirit of the present invention still fall within the technical scope of the present invention.

Claims

1. An enameled stranded wire for a high-frequency circuit is formed by stranding more than two enameled single wires and is characterized in that a reinforcing core is arranged at the center of the enameled stranded wire, and a plurality of enameled single wires are spirally wound on the periphery of the reinforcing core; and the peripheries of the plurality of enameled single wires are wound with braided insulating wires.

2. The enameled stranded wire for high-frequency circuit as claimed in claim 1, wherein each of said enameled single wires includes a wire core of hollow structure and an insulating paint film uniformly coated on the periphery thereof.

3. The enameled wire for high-frequency circuit as claimed in claim 2, wherein the thickness of paint film on each enameled wire is between 5% and 12% of the diameter of wire core.

4. The enameled wire for high-frequency circuit as claimed in any one of claims 1 to 3, wherein the reinforcing core is a cylindrical reinforcing core filled with graphite fibers.

5. The enameled stranded wire for high-frequency circuit as claimed in any one of claims 1 to 3, wherein the braided insulating yarn is braided polyester yarn or braided acetate yarn.

6. The enameled wire for high-frequency circuit as claimed in claim 5, wherein the thickness of the insulation wire is between 2% and 10% of the diameter of the wire.