CN204904944U - Electromagnetic wire is around guaranteeing serviceability 220 grades of polyimide sintered membranes - Google Patents
Electromagnetic wire is around guaranteeing serviceability 220 grades of polyimide sintered membranes Download PDFInfo
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- CN204904944U CN204904944U CN201520571094.8U CN201520571094U CN204904944U CN 204904944 U CN204904944 U CN 204904944U CN 201520571094 U CN201520571094 U CN 201520571094U CN 204904944 U CN204904944 U CN 204904944U
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- polyimide
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Abstract
The utility model discloses an electromagnetic wire is around guaranteeing serviceability 220 grades of polyimide sintered membranes, including the polyimide film layer, and the coating is in but the thermally melting polyimide resin layer on the polyimide film layer. The utility model discloses have good heat resistance and electric property, and a reinforce that bonds, can lighten the volume and the weight of electromagnetic wire insulating layer.
Description
Technical field
The utility model relates to the technical field of the wrapped sintered membrane of electromagnetic wire, particularly relates to the wrapped use of a kind of electromagnetic wire 220 grades of polyimide sintered films.
Background technology
Electromagnetic wire is the insulated electric conductor manufacturing coil in electric product or winding, and be the vitals realizing magnetoelectricity conversion, its basic composition comprises conductor wire core and electric insulation layer.Wrapped is step at wire additional pair of insulating barrier.
At present, in the polyimide sintered film of the wrapped use of electromagnetic wire, the most frequently used is polyimides-perfluoroethylene-propylene laminated film.Chinese patent CN201220068260.9 relates to a kind of multilayer corona-resistant polyimide-fluorine 46 laminated film sintering line, and its structure comprises copper conductor and wrapped at least two layers of polyimide-fluorine 46 laminated film thereon; Chinese patent 201020294622.7 relates to high-temperature polyimide film sintered round copper wire for deep-wire submersible motor, its structure is be covered with polyimide-fluorine 46 laminated film in the outside of copper cash, and described laminated film exhaustive fluorinated ethylene propylene is compounded in the one side of polyimide film or two-sided.
Owing to being subject to the impact of the thermal endurance of exhaustive fluorinated ethylene propylene, dielectric strength and cementability, the thermal endurance class of this sintered membrane is 200 grades, and needs the high thickness of adhibited layer of 12.5 μm.And the development of application, the overall thermal endurance of the wrapped sintered membrane of electromagnetic wire, thickness are had higher requirement.
Utility model content
In order to solve the above-mentioned deficiency of prior art, the purpose of this utility model is to provide a kind of 220 grades of polyimide sintered films.
The technical solution adopted in the utility model: the wrapped use of a kind of electromagnetic wire 220 grades of polyimide sintered films, comprise polyimide film layer, and be compounded at least one deck in described polyimide film layer can hot melt polyimide resin layer;
The wrapped use of described electromagnetic wire 220 grades of polyimide sintered films, wherein can be compounded in the one side of polyimide film layer or two-sided by hot melt polyimide resin layer;
The wrapped use of described electromagnetic wire 220 grades of polyimide sintered films, wherein the thickness of polyimide film layer is 5 ~ 250 μm, and described can the thickness of hot melt polyimide resin layer be 1 ~ 12.5 μm.
The wrapped use of described electromagnetic wire 220 grades of polyimide sintered films, are wherein saidly complex as coating.
Compared with prior art, the utility model adopt can hot melt polyimide resin layer as wrapped adhesive linkage, this resin has higher thermal endurance than perfluoroethylene-propylene, thus improves the thermal endurance class of sintered membrane.Due to the electric property of this resin and bonding force strong, effectively can reduce thickness of adhibited layer, thus alleviate the volume and weight of insulating barrier.
Accompanying drawing explanation
Fig. 1 is that one side coating can the polyimide sintered membrane structure schematic diagram of hot melt polyimide resin;
Fig. 2 is that dual coating can the polyimide sintered membrane structure schematic diagram of hot melt polyimide resin.
Embodiment
Below be described in detail with 1 and 2 pair of the utility model by reference to the accompanying drawings.
Embodiment 1
The wrapped use of electromagnetic wire 220 grades of polyimide sintered films (Fig. 1), it comprises polyimide film layer 2, and one side be coated in described polyimide film layer can hot melt polyimide resin layer 1; Wherein, the thickness of polyimide film layer is 5 ~ 250 μm, can hot melt polyimide resin layer thickness be 1 ~ 12.5 μm.
Embodiment 2
The wrapped use of electromagnetic wire 220 grades of polyimide sintered films (Fig. 2), it comprises polyimide film layer 2, and dual coating in described polyimide film layer can hot melt polyimide resin layer 1 and 3; Wherein the thickness of polyimide film layer is 5 ~ 250 μm, can hot melt polyimide resin layer thickness be 1 ~ 12.5 μm.
Embodiment 3
Preparation method: polyimide film (
type polyimide film) on layer single or double coating can heat molten type polyimide resin presoma (polyamic acid) (
resin) solution layer, then removes desolventizing and imidization.
The polyimide sintered film of preparation embodiment 1 and embodiment 2, test its performance together with polyimide-fluorine 46 laminated film, result is as following table 1 and table 2:
The performance parameter of polyimide sintered film prepared by table 1 embodiment 1
The performance parameter of polyimide sintered film prepared by table 2 embodiment 2
Claims (4)
1. the wrapped use of electromagnetic wire 220 grades of polyimide sintered films, is characterized in that comprising a polyimide film layer, and at least one deck be compounded in described polyimide film layer can hot melt polyimide resin layer.
2. the wrapped use of electromagnetic wire 220 grades of polyimide sintered films as claimed in claim 1, is characterized in that describedly to be compounded in the one side of polyimide film layer or two-sided by hot melt polyimide resin layer.
3. the wrapped use of electromagnetic wire 220 grades of polyimide sintered films as claimed in claim 1, it is characterized in that the thickness of described polyimide film layer is 5 ~ 250 μm, described can hot melt polyimide resin layer thickness be 1 ~ 12.5 μm.
4. the wrapped use of electromagnetic wire 220 grades of polyimide sintered films as claimed in claim 1, are complex as coating described in it is characterized in that.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520571094.8U CN204904944U (en) | 2015-07-31 | 2015-07-31 | Electromagnetic wire is around guaranteeing serviceability 220 grades of polyimide sintered membranes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520571094.8U CN204904944U (en) | 2015-07-31 | 2015-07-31 | Electromagnetic wire is around guaranteeing serviceability 220 grades of polyimide sintered membranes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204904944U true CN204904944U (en) | 2015-12-23 |
Family
ID=54927104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520571094.8U Active CN204904944U (en) | 2015-07-31 | 2015-07-31 | Electromagnetic wire is around guaranteeing serviceability 220 grades of polyimide sintered membranes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204904944U (en) |
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2015
- 2015-07-31 CN CN201520571094.8U patent/CN204904944U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 518105 Huamei Industrial Park, Songgang Street, Baoan District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Ruihua Tai Film Technology Co., Ltd. Address before: 518105 Huamei Industrial Park, Songgang Datianyang Industrial Zone, Baoan District, Shenzhen City, Guangdong Province Patentee before: Shenzhen Ruihuatai Membrane Technology Co., Ltd. |