Self-adhesive mica tape winding wire

Abstract

The invention discloses a self-adhesive mica tape winding wire, which belongs to the technical field of motor accessories. The winding wire comprises a conductor and an insulator combined outside the conductor. The insulator comprises a first mica tape wound outside the conductor; a film and the first mica tape which are wound outside the conductor in turn; a packaging layer combined outside the conductor by sintering or hot sealing and the first mica tape wound outside the packaging layer; a second mica tape and the first mica tape which are wound outside the conductor in turn; the second mica tape, a third mica tape and the first mica tape which are wound outside the conductor in turn; the film, the second mica tape and the first mica tape which are wound outside the conductor in turn; or the packaging layer combined outside the conductor by sintering or hot sealing and the second mica tape and the first mica tape which are wound outside the packaging layer in turn. The winding wire is characterized in that the outside lateral surface of the first mica tape is combined with a self-adhesive layer. Most ideally, the self-adhesive property is favorable for the shaping of a coil; and environmental influences are avoided and process steps in a manufacturing process are reduced.

Description

technical field

[0001] The invention belongs to the technical field of motor accessories, in particular to a self-adhesive mica tape wrapping wire. Background technique

[0002] The structure of the mica tape wrapping wire in the prior art generally has the following several types: the one is to wrap polyimide film or wrap polyester film outside the flat conductor such as copper or copper-clad aluminum, and then wrap the polyimide film on the polyimide Amine film or polyester film is wrapped with mica tape. Because the mica tape wrapping wire of this structure does not have self-adhesive properties, it is not conducive to the shaping of the coil during use, which makes installation and use difficult; the second is to wrap polyimide on the flat conductor of copper or copper-clad aluminum. Amine film, polyester film or mica tape, and then wrap mica tape outside, and then wrap single-layer or double-layer glass filament outside the mica tape, and dip it in paint, add self-adhe...

Examples

Embodiment 1

[0028] please see figure 1 ,exist figure 1 The conductor 1 given in is a flat copper conductor with a thickness of 5.5mm and a width of 15.5mm. An insulator is combined outside the conductor 1. In this embodiment, a self-adhesive layer is coated on one side. The first mica tape 2 of 21 is used as an insulator, and the first mica tape 2 is wrapped on the conductor 1 in an overlapping manner. When wrapping, the side with the self-adhesive layer 21 faces away from the conductor 1, that is to say, With the self-adhesive layer 21 facing outwards. The thickness of the first mica tape 2 is 0.09mm, and the wrapping ratio is 66%. The so-called wrapping ratio can also be referred to as the overlapping ratio, which refers to the ratio of the width of the overlapping portion to the width of the first mica tape 2. The encapsulation rate is also the preferred value obtained by the applicant through repeated trials, because the overlapping part will cause unnecessary (unreasonable) waste o...

Embodiment 2

[0032] please see figure 2 , by wrapping the film 3 outside the flat copper conductor 1, the film 3 adopts a polyimide film with a thickness of 0.04mm, and then wraps the surface of one side of the polyimide film in combination with a self-adhesive layer 21 The first mica tape 2 , that is to say, in this embodiment, the film 3 and the first mica tape 2 jointly constitute the insulator. Wherein: the thickness of the conductor 1 is 1mm, and the width is 2.5mm, the thickness of the first mica tape 2 is 0.09mm, the wrapping rate of the first mica tape 2 is 50%, all the other are the same as the description to embodiment 1.

Embodiment 3

[0034] please see image 3 , sintering and bonding the encapsulation layer 4 by sintering the flat copper conductor 1 with a thickness of 3 mm and a width of 10 mm, and then wrapping the encapsulation layer 4 on one side surface with a self-adhesive layer 21 First mica tape 2. It can be seen that in this embodiment, the encapsulation layer 4 and the first mica tape 2 jointly constitute an insulator combined outside the conductor 1 . Wherein: the thickness of the first mica tape 2 is 0.08mm, the wrapping rate of the first mica tape 2 is 50%, and the encapsulation layer 4 is polyamide coated with a composite film coated with fluorine 46 (F46) on one or both sides. Imine film, all the other are the same as the description to embodiment 1.

technical field

[0001] The invention belongs to the technical field of motor accessories, in particular to a self-adhesive mica tape wrapping wire. Background technique

[0002] The structure of the mica tape wrapping wire in the prior art generally has the following several types: the one is to wrap polyimide film or wrap polyester film outside the flat conductor such as copper or copper-clad aluminum, and then wrap the polyimide film on the polyimide Amine film or polyester film is wrapped with mica tape. Because the mica tape wrapping wire of this structure does not have self-adhesive properties, it is not conducive to the shaping of the coil during use, which makes installation and use difficult; the second is to wrap polyimide on the flat conductor of copper or copper-clad aluminum. Amine film, polyester film or mica tape, and then wrap mica tape outside, and then wrap single-layer or double-layer glass filament outside the mica tape, and dip it in paint, add self-adhe...

Examples

Embodiment 1

[0028] please see figure 1 ,exist figure 1 The conductor 1 given in is a flat copper conductor with a thickness of 5.5mm and a width of 15.5mm. An insulator is combined outside the conductor 1. In this embodiment, a self-adhesive layer is coated on one side. The first mica tape 2 of 21 is used as an insulator, and the first mica tape 2 is wrapped on the conductor 1 in an overlapping manner. When wrapping, the side with the self-adhesive layer 21 faces away from the conductor 1, that is to say, With the self-adhesive layer 21 facing outwards. The thickness of the first mica tape 2 is 0.09mm, and the wrapping ratio is 66%. The so-called wrapping ratio can also be referred to as the overlapping ratio, which refers to the ratio of the width of the overlapping portion to the width of the first mica tape 2. The encapsulation rate is also the preferred value obtained by the applicant through repeated trials, because the overlapping part will cause unnecessary (unreasonable) waste o...

Embodiment 2

[0032] please see figure 2 , by wrapping the film 3 outside the flat copper conductor 1, the film 3 adopts a polyimide film with a thickness of 0.04mm, and then wraps the surface of one side of the polyimide film in combination with a self-adhesive layer 21 The first mica tape 2 , that is to say, in this embodiment, the film 3 and the first mica tape 2 jointly constitute the insulator. Wherein: the thickness of the conductor 1 is 1mm, and the width is 2.5mm, the thickness of the first mica tape 2 is 0.09mm, the wrapping rate of the first mica tape 2 is 50%, all the other are the same as the description to embodiment 1.

Embodiment 3

[0034] please see image 3 , sintering and bonding the encapsulation layer 4 by sintering the flat copper conductor 1 with a thickness of 3 mm and a width of 10 mm, and then wrapping the encapsulation layer 4 on one side surface with a self-adhesive layer 21 First mica tape 2. It can be seen that in this embodiment, the encapsulation layer 4 and the first mica tape 2 jointly constitute an insulator combined outside the conductor 1 . Wherein: the thickness of the first mica tape 2 is 0.08mm, the wrapping rate of the first mica tape 2 is 50%, and the encapsulation layer 4 is polyamide coated with a composite film coated with fluorine 46 (F46) on one or both sides. Imine film, all the other are the same as the description to embodiment 1.

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