CN215451059U - Flat insulated enameled wire and inductor - Google Patents

Abstract

The utility model relates to the technical field of cables and discloses a flat insulating enameled wire and an inductor.A flat spiral coil is formed by winding a flat wire, wherein the flat wire comprises a flat lead, an enameled film and an insulating film, the outer side of the periphery of the flat lead is coated with the enameled film, the outer side of the periphery of the enameled film is coated with the insulating film, and the insulating film is directly coated on the outer side of the periphery of the enameled film; meanwhile, the flat coil can be completely exposed in the air, so that the heat dissipation of the flat coil is facilitated. The paint coating adopts a mode of obliquely wrapping adhesive tapes and overlapping, the number of layers is designed according to the requirement of use voltage, the overlapping is generally 1-5 layers, the coating can be performed for 1 time or repeated coating, wires after coating can be wound into products with different shapes according to the design requirements of the products, the magnetic cores are directly assembled for use, and no additional insulation measure is needed.

Description

Flat insulated enameled wire and inductor

Technical Field

The utility model relates to the technical field of cables, in particular to a flat insulating enameled wire and an inductor.

Background

The flat coil at the present stage can be generally applied to a low-voltage environment after being formed, but in a high-voltage environment of more than 200V, insulation measures need to be added outside the flat coil, for example, the flat coil is encapsulated and a framework is added on the flat coil, so that the process is very complicated, and the addition of the insulation measures is not beneficial to heat dissipation of the flat coil, and heat accumulation is easily caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art, and provides a flat insulated enameled wire and an inductor which can be applied to a high-voltage environment without adding an insulation measure to a flat coil and are beneficial to heat dissipation of the coil.

The purpose of the utility model is realized by the following technical scheme:

a flat insulated enameled wire is a flat spiral coil formed by winding a flat wire, wherein the flat wire comprises a flat lead, a paint coating and an insulating film, the paint coating is coated on the outer side of the periphery of the flat lead, and the insulating film is coated on the outer side of the periphery of the paint coating.

In one embodiment, the flat spiral coil comprises a plurality of coil groups, and a vent is arranged between every two adjacent coil groups.

In one embodiment, the insulating film is a polyimide film.

In one embodiment, the flat wire is a copper wire.

In one embodiment, the flat wire is an aluminum wire.

In one embodiment, the thickness of the insulating film is 0.02mm to 0.1 mm.

In one embodiment, the thickness of the paint coating is 0.04 mm-0.1 mm.

An inductor comprising the flat insulated enameled wire defined in any one of the above claims.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

1. by arranging the insulating film, the insulating film is directly coated on the outer side of the periphery of the paint coating film, so that the effect of insulation can be achieved without additionally coating the flat spiral coil and adding a framework on the flat coil, and the paint coating film can be directly applied to a high-voltage environment, and the working procedure is simplified; meanwhile, the flat coil can be completely exposed in the air, so that the heat dissipation of the flat coil is facilitated.

2. The paint coating adopts a mode of obliquely wrapping adhesive tapes and overlapping, the number of layers is designed according to the requirement of use voltage, the overlapping is generally 1-5 layers, the coating can be performed for 1 time or repeated coating, wires after coating can be wound into products with different shapes according to the design requirements of the products, the magnetic cores are directly assembled for use, and no additional insulation measure is needed.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a flat insulated enamel wire according to an embodiment of the present invention;

fig. 2 is a schematic view of a forming structure of a flat insulated enamel wire according to another embodiment of the present invention;

fig. 3 is a schematic view of a forming structure of the flat insulated enamel wire shown in fig. 2 at another angle.

Detailed Description

To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, in one embodiment, a flat insulated enameled wire 10 is a flat spiral coil 200 wound by a flat wire 100, the flat wire 100 includes a flat conductive wire 110, an enameled film 120 and an insulating film 130, the enameled film 120 is coated on the outer side of the periphery of the flat conductive wire 110, and the insulating film 130 is coated on the outer side of the periphery of the enameled film 120. It should be noted that the flat wire 100 is wound into the flat spiral coil 200 through a winding process, the flat wire 110 is coated with the enamel coating film 120, the insulation film 130 is coated with the enamel coating film 120, the enamel coating film 120 is used for coating the flat wire 110, further, by arranging the insulation film 130, the insulation film 130 is directly coated on the outer side of the circumference of the enamel coating film 120, the flat spiral coil 200 does not need to be additionally coated with the enamel coating film, and a skeleton is added to the flat spiral coil 200, so that an insulation effect can be achieved, and the flat spiral coil 100 can be directly applied in a high-voltage environment, thereby simplifying the process; meanwhile, the flat spiral coil 200 can be completely exposed to the air, thereby facilitating the heat dissipation thereof.

It should also be noted that the flat wire 100 includes a plurality of flat conductive wires 110, and the flat conductive wires 110 are arranged next to each other. By placing the flat wires 110 next to each other, the gap between the flat wires 110 is reduced, and the conductor area can be increased, which is advantageous in enhancing the current resistance of the wire. Further, the enameled film 120 is formed by obliquely wrapping adhesive tapes and overlapping, the number of layers is designed according to the requirement of the use voltage, the overlapping is generally 1-5 layers, the enameled film can be wrapped for 1 time or repeatedly, the wrapped wires can be wound into products with different shapes according to the design requirements of the products, the magnetic cores are directly assembled for use, and no additional insulation measure is needed.

Referring to fig. 2 and 3, further, in one embodiment, the flat spiral coil 200 includes a plurality of coil sets 210, and a vent 211 is disposed between each two adjacent coil sets 210. It should be noted that, by providing the ventilation opening 211 between two adjacent coil sets 210, ventilation and heat dissipation of the flat spiral coil 200 are facilitated.

Referring to fig. 1, the insulating film 130 is preferably a polyimide film. Polyimide is a preferred material for the insulating film because it is chemically stable and can prevent burning without adding a flame retardant.

Specifically, the flat wire 110 is a copper wire, and more specifically, the flat wire 110 is an aluminum wire. It should be noted that the present application may use copper wires and aluminum wires as conductors.

Referring to fig. 1, the thickness of the insulating film 130 is preferably 0.02mm to 0.1 mm. The thickness of the insulating film 130 is selected to be 0.02mm to 0.1mm, which can save space and optimize the insulating effect in this thickness range.

Referring to fig. 1, it is further preferable that the thickness of the enamel coating film 120 is 0.04mm to 0.1 mm. It should be noted that the thickness of the paint coating 120 is 0.04mm to 0.1mm, which can save space and optimize the wrapping performance in the thickness range.

An inductor comprising the flat insulated enameled wire according to any one of embodiments 1 to 7. It should be noted that the inductor may be applied to the flat insulated enameled wire in any of the above embodiments

The above embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (8)

1. A flat insulated enameled wire is characterized in that a flat spiral coil is formed by winding a flat wire, the flat wire comprises a flat conducting wire, a paint coating and an insulating film, the paint coating is coated on the outer side of the periphery of the flat conducting wire, and the insulating film is coated on the outer side of the periphery of the paint coating.

2. The flat insulated enameled wire according to claim 1, wherein the flat spiral coil comprises a plurality of coil groups, and a vent is disposed between every two adjacent coil groups.

3. The flat insulated enameled wire according to claim 1, wherein the insulation film is a polyimide film.

4. The flat insulated enameled wire according to claim 1, wherein the flat wire is a copper wire.

5. The flat insulated enameled wire according to claim 1, wherein the flat wire is an aluminum wire.

6. The flat insulated wire according to claim 1, wherein the thickness of the insulation film is 0.02mm to 0.1 mm.

7. The flat insulated enameled wire according to claim 1, wherein the thickness of the enamel coating film is 0.04mm to 0.1 mm.

8. An inductor comprising the flat insulated enameled wire defined in any one of claims 1 to 7.

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