CN202307379U - Insulation composite membrane used for motor and transformer - Google Patents
Insulation composite membrane used for motor and transformer Download PDFInfo
- Publication number
- CN202307379U CN202307379U CN2011204416770U CN201120441677U CN202307379U CN 202307379 U CN202307379 U CN 202307379U CN 2011204416770 U CN2011204416770 U CN 2011204416770U CN 201120441677 U CN201120441677 U CN 201120441677U CN 202307379 U CN202307379 U CN 202307379U
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Abstract
The utility model provides an insulation composite membrane used for a motor and a transformer. The insulation composite membrane used for the motor and the transformer is formed by compounding five layers of materials of polyimide, polyethylene glycol terephthalate, photosensitive binding material and the like. The five layers are respectively a first polyethylene glycol terephthalate layer, a first photosensitive binding material layer, a polyimide layer, a second photosensitive binding material layer and a second polyethylene glycol terephthalate layer. The thickess of each of the polyethylene glycol terephthalate layers is 0.05 to 0.15 mm. The thickness of the photosensitive binding material layer is 0.003 to 0.03 mm, thereby effectively protecting the polyimide layer and increasing the strength of the polyimide layer. Compared with a prior like product, the strength of the insulation composite membrane used for the motor and the transformer is improved by more than 20 percents.
Description
Technical field
The utility model relates to a kind of insulating material, relates in particular to a kind of insulated compound film that is used for motor, transformer.
Background technology
The insulating material material that in electric product, is absolutely necessary.For example 300MW turbo generator just needs about 1 ton of 10 tons in insulating varnish, 8 tons of mica productss, 5 tons of laminated sheets, varnished cloth and film; The required insulating material of the transformer of a 3200kW accounts for 34% of its gross mass; The required insulating material of the primary cut-out of a 10kV accounts for 18% of its total amount.The equipment of various electrical fields, as: motor and transformer etc., need to use insulating material, can operate as normal with assurance equipment.Motor is an example, and the insulating material around the motor conductor is isolated turn-to-turn and kept apart with the stator core of ground connection, to guarantee the safe operation of motor.
Dielectric film is a kind of film that can guarantee the good electrical insulating properties, not only has the resistivity usually above 1010 Ω cm, also has very high disruptive field intensity, and that the electronic structure characteristics are energy gaps is big.In order to be used for high-frequency insulation, also require material to have low dielectric loss.Dielectric film has inorganic and organic two types.Inorganic insulator is commonly referred to dielectric, and commonly used have silica, silicon nitride, aluminium oxide and an aluminium nitride etc.; Organic insulation membrane material commonly used has polyimides, polyethylene, polyvinylidene fluoride and polytetrafluoroethylene.No matter be inorganic or organic insulator, generally all has the ability that under External Electrical Field, polarizes.During as electrical insulating film, hope that its dielectric constant is low, to reduce dielectric loss.
Polyimides has that thermal coefficient of expansion is little, water absorption rate is low, molding shrinkage is little, creep resistant can be good under the high-low temperature resistant (269 ℃ of-260 ℃ of shapes that remain unchanged for a long period of time), high temperature, insulating properties is high, anti-high frequency, radiation hardness and the good characteristics such as (the entrant sound rate are high) of wave; Be a kind of good organic insulating material, and be widely used and electrical field.But the common intensity of the dielectric film that polyimides is processed is lower, can not be applicable to the high-intensity requirement of product time.
China utility model patent ZL200720042406.1 discloses a kind of three-layer insulated composite material, and the upper surface that comprises polyimide film, polyimide film is compounded with an inorganic organic fiber through adhesive and mixes the lower surface of copying paper, polyimide film and be compounded with aromatic polyamide paper through adhesive.This technical scheme can effectively be protected polyimide film, improves thermal conductivity and inhales the lacquer ability.Though the intensity of composite material has raising, but still be difficult to satisfy the requirement of strength in motor and transformer application.Therefore, still be necessary further to improve the intensity of insulating material.
The utility model content
The purpose of the utility model is to provide a kind of insulated compound film that is used for motor, transformer, adopts five layer of material to be composited, and to strengthen the polyimides film strength, improves thermal endurance and insulating properties.
A kind of insulated compound film that is used for motor, transformer that the utility model provides adopts the compound compositions of five layer materials such as polyimides, PETG and photosensitive adhesive.
(polyethylene terephthalate is PET) by ethylene glycol terephthalate generation dehydration condensation for PETG.PET has excellent physical and mechanical properties in wider temperature range, long-term serviceability temperature can reach 120 ℃, and electrical insulating property is good; Even under the high temperature high frequency, its electrical property is still better, but corona resistance is relatively poor; Creep resistance, fatigue durability, rub resistance, dimensional stability are all fine.
Photosensitive adhesive can be bonding with polyimide layer and PETG layer under light wave is used most.
The another kind that the utility model provides is used for the insulated compound film of motor, transformer; Form by five layer of material, be followed successively by the first PETG layer, the first photosensitive adhesive layer, polyimide layer, the second photosensitive adhesive layer and the second PETG layer.
For effectively protecting polyimide layer, strengthen its intensity, the thickness of each strata ethylene glycol terephthalate layer is 0.05-0.15mm.The thickness of photosensitive adhesive layer is 0.003-0.03mm.
The beneficial effect that the utility model technical scheme realizes:
The insulated compound film that is used for motor, transformer that the utility model provides adopts the compound compositions of five layer materials such as polyimides, PETG and photosensitive adhesive.The thickness of each strata ethylene glycol terephthalate layer is 0.05-0.15mm, and the thickness of photosensitive adhesive layer is 0.003-0.03mm, with effective protection polyimide layer, strengthens its intensity.Compared with similar products, composite membrane intensity improves more than 20%.
Description of drawings
Fig. 1 is used for the structural representation of insulated compound film one embodiment of motor, transformer for the utility model.
Embodiment
Describe the technical scheme of the utility model in detail below in conjunction with accompanying drawing.The utility model embodiment is only unrestricted in order to the technical scheme of explanation the utility model; Although the utility model is specified with reference to preferred embodiment; Those of ordinary skill in the art is to be understood that; Can make amendment or be equal to replacement the technical scheme of utility model, and not break away from the spirit and the scope of the utility model technical scheme, it all should be encompassed in the claim scope of the utility model.
Fig. 1 is used for the structural representation of insulated compound film one embodiment of motor, transformer for the utility model; Form by five layer of material, be followed successively by the first PETG layer 1, the first photosensitive adhesive layer 2, polyimide layer 3, the second photosensitive adhesive layer 4 and the second PETG layer 5.The thickness of each strata ethylene glycol terephthalate layer is 0.1mm, and the thickness of each layer photosensitive adhesive layer is 0.02mm.The insulated compound film that is used for motor, transformer of all thickness that makes, the result sees table 1.The listed existing product of table 1 is the disclosed composite material of utility model patent ZL200720042406.1.
Table 1
Claims (5)
1. insulated compound film that is used for motor, transformer; It is characterized in that forming, be followed successively by the first PETG layer, the first photosensitive adhesive layer, polyimide layer, the second photosensitive adhesive layer and the second PETG layer by five layer of material.
2. the insulated compound film that is used for motor, transformer according to claim 1, the thickness that it is characterized in that the described first PETG layer is 0.05-0.15mm.
3. the insulated compound film that is used for motor, transformer according to claim 1, the thickness that it is characterized in that the described second PETG layer is 0.05-0.15mm.
4. the insulated compound film that is used for motor, transformer according to claim 1, the thickness that it is characterized in that the described first photosensitive adhesive layer is 0.003-0.03mm.
5. the insulated compound film that is used for motor, transformer according to claim 1, the thickness that it is characterized in that the described second photosensitive adhesive layer is 0.003-0.03mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204416770U CN202307379U (en) | 2011-11-09 | 2011-11-09 | Insulation composite membrane used for motor and transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204416770U CN202307379U (en) | 2011-11-09 | 2011-11-09 | Insulation composite membrane used for motor and transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202307379U true CN202307379U (en) | 2012-07-04 |
Family
ID=46376224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204416770U Expired - Lifetime CN202307379U (en) | 2011-11-09 | 2011-11-09 | Insulation composite membrane used for motor and transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202307379U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106165282A (en) * | 2014-02-19 | 2016-11-23 | 利乐拉瓦尔集团及财务有限公司 | Power subsystem |
| CN106531374A (en) * | 2016-10-31 | 2017-03-22 | 青岛安信绝缘材料有限公司 | Flame-retardant insulated composite material and preparation technology thereof |
-
2011
- 2011-11-09 CN CN2011204416770U patent/CN202307379U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106165282A (en) * | 2014-02-19 | 2016-11-23 | 利乐拉瓦尔集团及财务有限公司 | Power subsystem |
| US10433440B2 (en) | 2014-02-19 | 2019-10-01 | Tetra Laval Holdings & Finance S.A. | Power supply unit |
| CN106531374A (en) * | 2016-10-31 | 2017-03-22 | 青岛安信绝缘材料有限公司 | Flame-retardant insulated composite material and preparation technology thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200513 Address after: No. 235, Mingxin Road, Jiaxing Industrial Park, Jiaxing City, Zhejiang Province Co-patentee after: JIAXING RONGTAI LEIPASI INSULATION MATERIALS Co.,Ltd. Patentee after: ZHEJIANG RONGTAI TECHNICAL INDUSTRY Co.,Ltd. Co-patentee after: JIAXING RONGTAI POLYMER NEW MATERIAL Research Institute Address before: 314007, Feng Fei Road 1, Phoenix Town, Nanhu District, Zhejiang City, Jiaxing Province Co-patentee before: JIAXING RONGTAI POLYMER NEW MATERIAL Research Institute Patentee before: JIAXING RONGTAI LEIPASI INSULATION MATERIALS Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120704 |