CN219163035U

CN219163035U - Composite enameled wire

Info

Publication number: CN219163035U
Application number: CN202223428500.4U
Authority: CN
Inventors: 黄中庸
Original assignee: Boro Typical Enamelled Wire Co ltd
Current assignee: Boro Typical Enamelled Wire Co ltd
Priority date: 2022-12-21
Filing date: 2022-12-21
Publication date: 2023-06-09
Anticipated expiration: 2032-12-21

Abstract

The utility model belongs to the technical field of enameled wires, and particularly relates to a composite enameled wire which comprises a conductive wire core, a first film layer group coated and wrapped outside the conductive wire core, and a second film layer group wrapped outside the first film layer group in a winding manner; the second film layer group comprises a first winding film layer wound and wrapped outside the first film layer group and a second winding film layer reversely wound and wrapped outside the first winding film layer; and the included angle alpha between the first winding film layer and the second winding film layer is more than or equal to 15 degrees and less than or equal to 150 degrees. The utility model provides a composite enameled wire, which has the advantages of simple preparation process, high production efficiency, simple forming process and low production difficulty.

Description

Composite enameled wire

Technical Field

The utility model belongs to the technical field of enameled wires, and particularly relates to a composite enameled wire.

Background

Enamelled wires generally consist of two parts, a conductor and an insulating layer. In the prior art, the insulating layer is generally formed by coating, baking, cooling and solidifying paint, and the paint film forming needs more working procedures and longer time, so that the production efficiency of the enameled wire is greatly influenced; in addition, in the process of film forming, the method is easily influenced by factors such as raw material quality, process parameters, production equipment, processing environment and the like, and the production conditions of all working procedures are required to be strictly controlled so as to ensure the production quality of enameled wires, and the method is complex in processing technology and high in requirement.

Disclosure of Invention

In order to solve the defects in the prior art, the utility model provides the composite enameled wire, wherein the insulating layer is formed by combining a first film layer group formed by coating and a second film layer group formed by winding, and the winding processing mode only needs to wind the formed film material on a wire rod according to a required mode without the procedures of coating, baking, cooling, solidifying and the like.

The technical effects to be achieved by the utility model are realized by the following technical scheme:

the composite enameled wire comprises a conductive wire core, a first film layer group coated and wrapped outside the conductive wire core, and a second film layer group wrapped outside the first film layer group in a winding manner; the second film layer group comprises a first winding film layer wound and wrapped outside the first film layer group and a second winding film layer reversely wound and wrapped outside the first winding film layer; and the included angle alpha between the first winding film layer and the second winding film layer is more than or equal to 15 degrees and less than or equal to 150 degrees.

Further, the first film layer group comprises at least two coating film layers which are sequentially stacked.

Further, the first film layer group comprises a first coating film layer coated and wrapped outside the conductive wire core, and a second coating film layer coated and wrapped outside the first coating film layer.

Further, the first coating film layer is a polyamide imide film layer, and the second coating film layer is a polyester imide film layer.

Further, the thickness of the first film layer group is less than or equal to 0.01mm.

Further, the thickness ratio of the first film layer group to the second film layer group is 1: (0.8-1.5).

Further, an included angle alpha between the first winding film layer and the second winding film layer is more than or equal to 45 degrees and less than or equal to 90 degrees.

Further, the first winding film layer is a polyamide imide film layer, and the second winding film layer is a polyester imide film layer.

In summary, the present utility model has at least the following advantages:

1. the composite enameled wire provided by the utility model has the advantages that the preparation process is simplified, the production efficiency is high, and the requirement on the insulating layer forming process can be effectively reduced, so that the production difficulty of the enameled wire is reduced.

2. According to the composite enameled wire, the second film layer formed by winding is arranged outside the enameled wire, so that the flexibility resistance of the enameled wire can be further effectively improved on the basis of guaranteeing the overall performance and quality of the enameled wire.

Drawings

Fig. 1 is a schematic cross-sectional view (cross-section) of a composite enamel wire according to an embodiment of the present utility model;

fig. 2 is a schematic cross-sectional view (longitudinal section) of a composite enamel wire according to an embodiment of the present utility model.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The described embodiments are some, but not all, embodiments of the utility model.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

Example 1:

referring to fig. 1, the present embodiment provides a composite enameled wire, which includes a conductive wire core 100, a first film layer group 200 coated and wrapped outside the conductive wire core 100, and a second film layer group 300 wrapped and wrapped outside the first film layer group 200; the conductive wire core 100 is used for conducting the whole enameled wire, and is preferably a copper wire or an aluminum wire with good conductivity; the first film layer group 200 is used for insulation protection of the conductive wire core 100, and preferably, the first film layer group 200 comprises at least two sequentially laminated coating film layers; the second film layer group 300 is used for further insulation and protection of the conductive wire core 100, and its specific structure includes a first winding film layer 310 wound around the outside of the first film layer group 200, and a second winding film layer 320 wound around the outside of the first winding film layer 310 in a reverse direction, where an included angle between the first winding film layer 310 and the second winding film layer 320 is 15 ° or more and α or less than 150 °, as shown in fig. 2.

In terms of processing technology, the insulating film layer structure formed by winding does not need to be subjected to various complex procedures and strict requirements on the forming technology like coating a paint film layer, and the insulating protective film layer can be formed by winding the formed film material on a wire rod according to a required form, so that compared with the insulating layer produced by only adopting a coating processing mode in the prior art, the insulating layer is processed by combining coating and winding, the process is effectively simplified, the forming time of the insulating layer is saved, the production efficiency of an enameled wire is improved, and the requirements on the forming technology of the insulating layer are effectively reduced, so that the production difficulty of the enameled wire is reduced.

Compared with a paint film insulating structure formed by coating, the insulating film layer structure formed by winding has higher elasticity degree of freedom and flexibility resistance, and can further effectively improve the flexibility resistance of the enameled wire on the basis of ensuring the integral performance of the enameled wire so as to prevent the enameled wire insulating layer from being damaged due to bending; the first winding film layer 310 and the second winding film layer 320 are wrapped outside the first film layer group 200 in a cross winding mode that a certain included angle is formed between the reverse winding and the winding direction, and compared with the same-direction parallel winding mode, the reverse cross winding can effectively avoid loose winding film layers and improve the stability of the whole structure of the second film layer group 300, so that the whole performance of the enameled wire is further effectively ensured; preferably, the included angle between the first winding film layer 310 and the second winding film layer 320 is 45 degrees or more and less than or equal to 90 degrees, so that the second film layer group 300 integrally forms a grid layer group structure, the integral compactness of the second film layer group 300 is improved, the conductive wire core 100 and the first film layer group 200 are tightly wrapped, and the integral quality and stability of the enameled wire are effectively ensured.

Further, the thickness of the first film layer group 200 is less than or equal to 0.01mm, and the thickness ratio of the first film layer group 200 to the second film layer group 300 is 1: (0.8-1.5), the thicknesses of the first film layer set 200 and the second film layer set 300 can be selected according to actual production requirements; because the second layer set 300 has a higher processing efficiency than the first layer set 200, when there is a requirement for the production efficiency of the enamel wire, it is preferable to design the second layer set 300 to have a thickness greater than that of the first layer set 200, i.e. the insulation layer is formed mainly by winding; in other cases, the first film layer set 200 and the second film layer set 300 may be designed according to the specific needs of the product.

Example 2:

referring to fig. 1, this embodiment provides a composite enameled wire, which, like embodiment 1, includes a conductive wire core 100, a first film layer group 200 coated and wrapped outside the conductive wire core 100, and a second film layer group 300 wrapped and wrapped outside the first film layer group 200; the conductive wire core 100 is used for conducting the whole enameled wire, and is preferably a copper wire or an aluminum wire with good conductivity; the first set of film layers 200 is used for insulation protection of the conductive core 100 and the second set of film layers 300 is used for further insulation and protection of the conductive core 100. The main differences are that:

referring to fig. 1 and 2, the first film layer group 200 includes a first coating film layer 210 coated on the outside of the conductive core 100, and a second coating film layer 220 coated on the outside of the first coating film layer 210, wherein the first coating film layer 210 is a polyamide imide film layer, and the second coating film layer 220 is a polyester imide film layer; the composite insulating layer group formed by combining the polyamide-imide paint film layer and the polyester-imide paint film layer not only can effectively ensure the integral mechanical strength, electrical performance, heat resistance, cold resistance, radiation resistance, chemical resistance and the like of the enameled wire, but also has higher adhesiveness compared with the polyester-imide paint because the polyamide-imide paint generally has higher adhesiveness, so that the first coating paint film layer 210 is designed into the polyamide-imide paint film layer, and the combination stability of a paint film and the conductive wire core 100 can be effectively improved, thereby further effectively improving the integral quality and stability of the enameled wire.

The second film layer group 300 comprises a first winding film layer 310 wound and wrapped outside the first film layer group 200, and a second winding film layer 320 reversely wound and wrapped outside the first winding film layer 310, wherein an included angle alpha between the first winding film layer 310 and the second winding film layer 320 is more than or equal to 15 degrees and less than or equal to 150 degrees; preferably, the first winding film layer 310 is a polyamide imide film layer, the second winding film layer 320 is a polyester imide film layer, and the second film layer set 300 is a composite insulating layer set formed by combining polyamide imide and a polyester imide material, so that the overall performance of the enameled wire can be further effectively improved, and the polyester imide material generally has higher wear resistance compared with the polyamide imide material, so that the second winding film layer 320 is designed as the polyester imide film layer, and the overall wear resistance of the enameled wire can be effectively ensured.

According to the technical scheme of the embodiment, the composite enameled wire is high in production efficiency, low in production difficulty and high in quality and stability.

In the description of the present utility model, it should be understood that the terms "orientation" or "positional relationship" are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present utility model, it should be noted that the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.

While the utility model has been described in conjunction with the specific embodiments above, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, all such alternatives, modifications, and variations are included within the spirit and scope of the following claims.

Claims

1. The composite enameled wire is characterized by comprising a conductive wire core, a first film layer group coated and wrapped outside the conductive wire core, and a second film layer group wrapped and wrapped outside the first film layer group; wherein, the liquid crystal display device comprises a liquid crystal display device,

the second film layer group comprises a first winding film layer wound and wrapped outside the first film layer group and a second winding film layer reversely wound and wrapped outside the first winding film layer; and the included angle alpha between the first winding film layer and the second winding film layer is more than or equal to 15 degrees and less than or equal to 150 degrees.

2. The composite wire of claim 1, wherein the first film layer set comprises at least two paint film layers stacked in sequence.

3. The composite wire according to claim 1 or 2, wherein the first group of film layers comprises a first layer of coating film coated on the exterior of the conductive wire core and a second layer of coating film coated on the exterior of the first layer of coating film.

4. The composite wire of claim 3 wherein the first coating film layer is a polyamideimide film layer and the second coating film layer is a polyesterimide film layer.

5. The composite enameled wire according to claim 1 wherein the thickness of the first layer group is less than or equal to 0.01mm.

6. The composite enameled wire of claim 1 wherein a thickness ratio of said first layer of film to said second layer of film is 1: (0.8-1.5).

7. The composite enameled wire according to claim 1, wherein an included angle between a winding direction of the first winding film layer and a winding direction of the second winding film layer is 45 degrees or more and 90 degrees or less.

8. The composite enameled wire of claim 1 wherein said first wound film is a polyamide imide film and said second wound film is a polyester imide film.