CN215440296U

CN215440296U - Insulating double-sided tape and transformer

Info

Publication number: CN215440296U
Application number: CN202121466132.5U
Authority: CN
Inventors: 袁永华
Original assignee: Sunshine Electronics Co ltd
Current assignee: Sunshine Electronics Co ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2022-01-07
Anticipated expiration: 2031-06-29

Abstract

The utility model relates to the technical field of adhesion, and discloses an insulating double-sided tape and a transformer, which comprise a release film, a first adhesive layer, an insulating layer and a second adhesive layer, wherein the release film, the first adhesive layer, the insulating layer and the second adhesive layer are sequentially adhered from top to bottom; after the winding of the bottom has been convoluteed, adhere the second adhesive layer in the insulating double-sided tape on the bottom winding, then tear and leave the type membrane for first adhesive layer exposes, winds again, and so, at wire-wound in-process, the wire rod can bond on first adhesive layer, and then can not take place the landing or the condition of piling up, and the roughness of wire rod is higher, simultaneously, at wire-wound in-process, can guarantee that the clearance reduces between wire rod and the wire rod, makes the number of turns of winding increase.

Description

Insulating double-sided tape and transformer

Technical Field

The utility model relates to the technical field of adhesion, in particular to an insulating double-sided tape and a transformer.

Background

The bottom winding of transformer can arch up, leads to the sticky tape arch up of adhesion on the bottom winding, because the sticky tape majority of present stage adopts the single face to take gluey, consequently keeps away from the one side surface of bottom winding smooth, and then has the clearance easily between wire and the line at wire-wound in-process for wire-wound number of turns reduces, simultaneously, at wire-wound in-process, the condition that the line landing or pile up can appear, makes the wire winding unevenness.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art, and provides an insulating double-sided tape and a transformer, wherein the insulating double-sided tape can avoid the situation of slipping or stacking in the winding process, so that the winding is more complete, and gaps can be avoided between wires.

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

an insulating double-sided adhesive tape comprising: the adhesive tape comprises a release film, a first adhesive layer, an insulating layer and a second adhesive layer, wherein the release film, the first adhesive layer, the insulating layer and the second adhesive layer are sequentially adhered from top to bottom;

the insulating layer includes first surface treatment layer, insulating piece and second surface treatment layer, a side adhesion on first surface treatment layer in on the first adhesive layer, another side adhesion on first surface treatment layer in on the insulating piece, a side adhesion on second surface treatment layer in on the insulating piece, another side adhesion on second surface treatment layer in on the second adhesive layer.

In one embodiment, the thickness of the first adhesive layer is 0.01mm to 0.05 mm.

In one embodiment, the thickness of the second adhesive layer is 0.01mm to 0.05 mm.

In one embodiment, the thickness of the insulation sheet is 0.015 mm-0.05 mm.

In one embodiment, the first adhesive layer is a pressure sensitive adhesive.

In one embodiment, the second adhesive layer is a pressure sensitive adhesive.

In one embodiment, the thickness of the release film is 0.01 mm-0.05 mm.

In one embodiment, the first adhesive layer is an acrylic adhesive.

A transformer comprising the insulating double-sided tape of any one of the above embodiments.

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

the utility model relates to an insulating double-sided tape and a transformer, wherein after a winding at the bottom layer is wound, a second adhesive layer in the insulating double-sided tape is adhered to the winding at the bottom layer, a release film is torn off to expose a first adhesive layer, and then winding is carried out.

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 an insulating double-sided tape according to an embodiment of the present invention;

fig. 2 is a schematic structural view of an insulating double-sided tape according to another embodiment of the present invention.

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 and fig. 2, in an embodiment, an insulating double-sided tape 10 includes a release film 100, a first adhesive layer 200, an insulating layer 300, and a second adhesive layer 400, wherein the release film 100, the first adhesive layer 200, the insulating layer 300, and the second adhesive layer 400 are sequentially bonded from top to bottom;

referring to fig. 1 and 2, the insulation layer 300 includes a first surface treatment layer 310, an insulation sheet 320, and a second surface treatment layer 330, one side surface of the first surface treatment layer 310 is adhered to the first adhesive layer 200, the other side surface of the first surface treatment layer 310 is adhered to the insulation sheet 320, one side surface of the second surface treatment layer 330 is adhered to the insulation sheet 320, and the other side surface of the second surface treatment layer 330 is adhered to the second adhesive layer 400. It should be noted that, after the bottom winding 500 is wound, the second adhesive layer 400 in the insulating double-sided tape 10 is adhered to the bottom winding 500, and then the release film 100 is torn down, so that the first adhesive layer 200 is exposed, and then winding is performed, so that, in the winding process, the wire can be adhered to the first adhesive layer 200, and then the situation of slipping or stacking cannot occur, the flatness of the wire is higher, and meanwhile, in the winding process, the gap between the wire and the wire can be ensured to be reduced, so that the number of winding turns is increased. It should be noted that the first surface treatment layer 310 and the second surface treatment layer 330 are both polished to make the surface of the insulation sheet 320 rougher, thereby facilitating the adhesion of the first adhesive layer 200 and the second adhesive layer 400.

Referring to fig. 1, further, in one embodiment, the thickness of the first adhesive layer 200 is 0.01mm to 0.05 mm. In order to save space and improve adhesiveness, the thickness of the first adhesive layer 200 is preferably 0.01mm to 0.05 mm.

Referring to fig. 1, further, in an embodiment, the thickness of the second adhesive layer 400 is 0.01mm to 0.05 mm. In order to save space and improve adhesiveness, the thickness of the second adhesive layer 400 is preferably 0.01mm to 0.05 mm.

Referring to fig. 1, the insulating sheet 320 preferably has a thickness of 0.015mm to 0.05 mm. It should be noted that the insulating sheet 320 having a thickness of 0.015mm to 0.05mm is preferably used for the flame retardant effect, and a large space can be saved.

Referring to fig. 1, preferably, the first adhesive layer 200 is a pressure-sensitive adhesive, and the second adhesive layer 400 is a pressure-sensitive adhesive. It should be noted that pressure sensitive adhesives, known collectively as pressure sensitive adhesives, allow the adhesive to immediately bond any smooth surface of an adherend. Meanwhile, if the adherend bonding surface is broken, the adhesive does not contaminate the adherend surface. Therefore, pressure sensitive adhesives are the preferred adhesive material.

Referring to fig. 1, specifically, the thickness of the release film 100 is 0.01mm to 0.05 mm. Note that the release film 100 having such a thickness is used for easy tearing.

Referring to fig. 1, in another embodiment, the first adhesive layer 200 is an acrylic adhesive. It should be noted that the first adhesive layer 200 and the second adhesive layer 400 may also be acrylic adhesive, which has strong adhesiveness and high elasticity and is also suitable for being used as an adhesive layer.

A transformer comprising the insulating double-sided adhesive tape 10 according to any one of embodiments 1 to 8. Note that the insulating double-sided tape 10 described above may be applied to the transformer.

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

1. An insulating double-sided tape, comprising: the adhesive tape comprises a release film, a first adhesive layer, an insulating layer and a second adhesive layer, wherein the release film, the first adhesive layer, the insulating layer and the second adhesive layer are sequentially adhered from top to bottom;

2. The insulating double-sided tape of claim 1, wherein the thickness of the first adhesive layer is 0.01mm to 0.05 mm.

3. The insulating double-sided tape of claim 1, wherein the thickness of the second adhesive layer is 0.01mm to 0.05 mm.

4. The insulating double-sided tape of claim 1, wherein the insulating sheet has a thickness of 0.015mm to 0.05 mm.

5. The insulating double-sided tape of claim 1, wherein the first adhesive layer is a pressure-sensitive adhesive.

6. The insulating double-sided tape of claim 1, wherein the second adhesive layer is a pressure-sensitive adhesive.

7. The insulating double-sided tape according to claim 1, wherein the thickness of the release film is 0.01mm to 0.05 mm.

8. The insulating double-sided tape of claim 1, wherein the first adhesive layer is an acrylic adhesive.

9. A transformer comprising the insulating double-sided tape of any one of claims 1 to 8.