CN113871081A - High-insulativity wrapped electromagnetic wire for high-voltage motor - Google Patents
High-insulativity wrapped electromagnetic wire for high-voltage motor Download PDFInfo
- Publication number
- CN113871081A CN113871081A CN202111237756.4A CN202111237756A CN113871081A CN 113871081 A CN113871081 A CN 113871081A CN 202111237756 A CN202111237756 A CN 202111237756A CN 113871081 A CN113871081 A CN 113871081A
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- layer
- conductor
- electromagnetic wire
- voltage motor
- polyimide film
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/2806—Protection against damage caused by corrosion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
- H01B3/04—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances mica
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/303—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups H01B3/38 or H01B3/302
- H01B3/306—Polyimides or polyesterimides
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
- H01B7/0208—Cables with several layers of insulating material
- H01B7/0225—Three or more layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
- H01B7/0291—Disposition of insulation comprising two or more layers of insulation having different electrical properties
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1875—Multi-layer sheaths
- H01B7/188—Inter-layer adherence promoting means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat
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- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The invention discloses a high-insulation wrapped electromagnetic wire for a high-voltage motor, which comprises a conductor, wherein an electroplated aluminum layer is arranged on the surface of the conductor, a paint coating is uniformly covered on the surface of the electroplated aluminum layer, an adhesive layer is coated on the surface of the paint coating, and an epoxy resin layer is arranged on the surface of the adhesive layer. Through setting up the enamelling layer, electro-deposited aluminium layer and conductor, its electro-deposited aluminium layer passes through anodic oxidation and handles the back, make it produce the anticorrosive film of one deck non-conduction, make its reinforcing conductor surface strength, immediately under the enamelling layer effect on surface, keep its surface covering, when corona phenomenon appears, the adhesive linkage is fixed a position the glass silk, the glass silk blocks a large amount of heats immediately, and guarantee enamelling layer can not excessively be heated, guarantee internal insulation that can be very big degree can not appear ageing, keep the degree of compactness of conductor, this kind of mode can ensure to reduce the influence of corona to inside, and possess the effect that certain suppression corona produced.
Description
Technical Field
The invention relates to the field of high-voltage electrical devices, in particular to a high-insulation wrapped electromagnetic wire for a high-voltage motor.
Background
The high-voltage motor is a motor with a rated voltage of more than 1000V. 6000V and 10000V are commonly used, and 3300V and 6600V are also used due to different foreign power grids. The high voltage motor is generated because the motor power is proportional to the product of voltage and current, so that the current is limited by the allowable bearing capacity of the wire to a certain extent, which makes the low voltage motor difficult to be enlarged or has high cost. It is necessary to achieve a high power output by increasing the voltage. The high-voltage motor has the advantages of high power and strong impact bearing capacity; the disadvantages are large inertia and difficult starting and braking.
The lapped electromagnetic wire is used as one of indispensable important accessories in the high-voltage motor, the surface of the lapped electromagnetic wire needs to be subjected to insulation treatment in order to separate the contact between leads, and simultaneously, the insulation treatment part of the lapped electromagnetic wire is used for reducing the harm to the lapped electromagnetic wire caused by the generation of corona, as the existing high-voltage lapped electromagnetic wire, a conductor electrode with small curvature radius discharges to air to generate corona, the corona generates heat effect and oxides of ozone and nitrogen, gas discharge can be generated to generate chemical reaction, the local temperature in a coil is increased to cause adhesive deterioration and carbonization, strand insulation and mica whitening, strand loosening, short circuit and insulation aging are further caused, wherein ozone has strong oxidation effect on metal and organic insulators, and nitrogen dioxide and nitric oxide can be dissolved in water in the air to form nitric acid, has strong corrosiveness, so the problem of overcoming the influence of corona to the maximum extent is taken as a primary solution.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a high-insulation wrapped electromagnetic wire for a high-voltage motor, corona generates heat effect and oxides of ozone and nitrogen, gas discharge is generated to generate chemical reaction, so that the local temperature in a coil is increased, the adhesive is deteriorated and carbonized, strand insulation and mica are whitened, and further the strands are loosened, short-circuited, insulated and aged, wherein ozone has strong oxidation effect on metal and organic insulation, nitrogen dioxide and nitric oxide can be dissolved in water in the air to form nitrates, and the nitrogen dioxide and the nitric oxide have strong corrosivity, so that the problem of overcoming the influence of corona to the maximum extent is taken as a primary solution.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a high insulating nature high voltage motor is with wrapping electromagnetic wire, includes the conductor, the surface of conductor is provided with the layer of electroplating aluminium, the even cover in surface of layer of electroplating aluminium has the enamelling layer, the surface of enamelling layer has been paintd adhesive layer, the surface of adhesive layer is provided with epoxy layer, epoxy layer's the even package of twining in surface has the polyimide film, the surface winding of polyimide film has the mica tape.
As a preferred technical scheme of the invention, the conductor is made of oxygen-free copper material, and the surface of the electroplated aluminum layer is subjected to anodic oxidation treatment after film coating.
As a preferable technical scheme of the invention, the enamelling layer is made of semi-conductive paint with surface resistivity of 103-1011 ohm meters.
As a preferable technical scheme of the invention, the surface of the lacquered layer is uniformly wound with glass fibers, the glass fibers are positioned in the bonding layer, and the diameter of the glass fibers is 0.01-0.04mm
As a preferable technical scheme of the invention, the width ratio of the polyimide film to the mica tape is 1:2, and the lapping superposition gap of the polyimide film and the mica tape is strictly controlled between 0.3 mm and 0.5mm through a machine.
As a preferable technical scheme of the invention, the tension of the mica tape is 10-12N, and the tension of the polyimide film is 15-20N.
Compared with the prior art, the invention can achieve the following beneficial effects:
1. through setting up the enamelling layer, the glass silk, the enamelling layer, electro-plated aluminium layer and conductor, its electro-plated aluminium layer passes through anodic oxidation treatment back, make it produce the anticorrosive film of one deck non-conductive, make its reinforcing conductor surface strength, under the enamelling layer effect on surface immediately, keep its surface covering, when corona phenomenon appears, the adhesive linkage is fixed a position to the glass silk, the glass silk blocks a large amount of heat immediately, and guarantee enamelling layer can not excessively be heated, guarantee internal insulation that can be very big degree can not appear ageing, keep the degree of compactness of conductor, this kind of mode can ensure to reduce the influence of corona to inside, and possess the effect that certain suppression corona produced.
2. Through setting up the polyimide film, the mica tape, the glass silk, adhesive linkage and epoxy, its adhesive linkage and epoxy cooperate down, make it keep the cover to the glass silk, epoxy can cooperate simultaneously can with the inseparable bonding of polyimide film and fixed, make it reach suitable tensile force, the mica tape of mating surface, cooperate and bind, it is loose to make its prevention that can be very big degree appear, and the mica tape plays the effect of certain corona-resistant protection with the polyimide film.
Drawings
FIG. 1 is a schematic diagram of a specific embodiment of the present invention.
Wherein: 1 conductor, 2 electroplated aluminum layers, 3 lacquered layers, 4 adhesive layers, 5 epoxy resin layers, 6 polyimide films, 7 mica tapes and 8 glass yarns.
Detailed Description
Technical means for implementing the present invention; authoring features; the purpose served by the disclosure is to provide a thorough understanding of the invention, and is to be construed as being a limitation on the scope of the invention as defined by the appended claims. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention. The experimental methods in the following examples, unless otherwise specified, are conventional methods, materials used in the following examples; reagents and the like are commercially available unless otherwise specified.
Example 1:
as shown in fig. 1, a square flat conductor 1 with unlimited length is shown, in this embodiment, the conductor 1 is made of oxygen-free copper material, the surface of the conductor 1 is provided with an electroplated aluminum layer 2, the surface of the electroplated aluminum layer 2 is processed by anodic oxidation after being coated, and a colorless oxide film is generated on the surface of the electroplated aluminum layer after being processed by anodic oxidation. The oxide film is not conductive, the corrosion resistance of aluminum is mainly improved, the surface hardness is greatly improved, the oxide film can resist general friction and is not easy to be polluted, the surface of the electroplated aluminum layer 2 is uniformly covered with an enamel coating 3, an adhesive layer 4 is coated on the surface of the enamel coating 3, the enamel coating 3 adopts semi-conductive paint with the surface resistivity of 103-1011 ohm meters, glass wires 8 are uniformly wound on the surface of the enamel coating 3, the glass wires 8 are positioned in the adhesive layer, the diameter of the glass wires 8 is 0.01-0.04mm, an epoxy resin layer 5 is arranged on the surface of the adhesive layer 4, a polyimide film 6 is uniformly wound on the surface of the epoxy resin layer 5, wherein the polyimide film 6 which is one of the characteristics is a Dupont corona-resistant polyimide film 6, a mica tape 7 is wound on the surface of the polyimide film 6, and the width ratio of the polyimide film 6 to the mica tape 7 is 1:2, the lapping superposition gap between the polyimide film 6 and the mica tape 7 is strictly controlled to be 0.3-0.5mm through a machine, the tension of the mica tape 7 is 10-12N, and the tension of the polyimide film 6 is 15-20N.
Example 2:
the diameter of the glass fiber 8 is only corrected to be 0.005-0.03mm, the width ratio of the polyimide film 6 to the mica tape 7 is 1:1.5, the lapping superposition gap of the polyimide film 6 and the mica tape 7 is strictly controlled to be 0.2-0.6mm through a machine, and the rest parameters are consistent with the embodiment.
Example 3:
the diameter of the glass fiber 8 is only corrected to be 0.02-0.05mm, the width ratio of the polyimide film 6 to the mica tape 7 is 1:1, the lapping overlapping gap of the polyimide film 6 and the mica tape 7 is strictly controlled to be 0.1-0.2mm through a machine, and the rest parameters are consistent with the embodiment.
Example 4:
the diameter of the glass fiber 8 is only corrected to be 0.001-0.01mm, the width ratio of the polyimide film 6 to the mica tape 7 is 1:3, the lapping overlapping gap of the polyimide film 6 and the mica tape 7 is strictly controlled to be 0.5-0.6mm through a machine, and the rest parameters are consistent with the embodiment.
The wrapped electromagnetic wires for the high-voltage motor obtained in the above embodiments 1 to 4 have good insulation performance, protection corrosion resistance and excellent corona resistance
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a high-voltage motor of high insulating nature is with wrapping electromagnetic wire, includes conductor (1), its characterized in that: the surface of conductor (1) is provided with electroplated aluminum layer (2), the surface of electroplated aluminum layer (2) evenly covers has enamelled layer (3), adhesive layer (4) have been paintd on the surface of enamelled layer (3), the surface of adhesive layer (4) is provided with epoxy resin layer (5), the surface of epoxy resin layer (5) evenly twines the package and has polyimide film (6), the surface winding of polyimide film (6) has mica tape (7).
2. The lapped electromagnetic wire for the high-voltage motor with high insulation property according to claim 1, wherein: the conductor (1) is made of oxygen-free copper, and the surface of the electroplated aluminum layer (2) is subjected to anodic oxidation treatment after film coating.
3. The lapped electromagnetic wire for the high-voltage motor with high insulation property according to claim 1, wherein: the paint coating (3) is semi-conductive paint with surface resistivity of 103-1011 ohm meters.
4. The lapped electromagnetic wire for the high-voltage motor with high insulation property according to claim 1, wherein: the surface of the lacquer coating (3) is uniformly wound with glass fibers (8), the glass fibers (8) are positioned in the bonding layer, and the diameter of each glass fiber (8) is 0.01-0.04 mm.
5. The lapped electromagnetic wire for the high-voltage motor with high insulation property according to claim 1, wherein: the width ratio of the polyimide film (6) to the mica tape (7) is 1:2, and the lapping superposition gap between the polyimide film (6) and the mica tape (7) is strictly controlled between 0.3 mm and 0.5mm through a machine.
6. The lapped electromagnetic wire for the high-voltage motor with high insulation property according to claim 1, wherein: the tensile force of the mica tape (7) is 10-12N, and the tensile force of the polyimide film (6) is 15-20N.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111237756.4A CN113871081A (en) | 2021-10-25 | 2021-10-25 | High-insulativity wrapped electromagnetic wire for high-voltage motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111237756.4A CN113871081A (en) | 2021-10-25 | 2021-10-25 | High-insulativity wrapped electromagnetic wire for high-voltage motor |
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| Publication Number | Publication Date |
|---|---|
| CN113871081A true CN113871081A (en) | 2021-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111237756.4A Pending CN113871081A (en) | 2021-10-25 | 2021-10-25 | High-insulativity wrapped electromagnetic wire for high-voltage motor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115938650A (en) * | 2022-11-15 | 2023-04-07 | 方文玲 | A kind of anti-rust cable with low hydrogen loss and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201413685Y (en) * | 2009-06-01 | 2010-02-24 | 苏州巨峰金属线缆有限公司 | Self-adhesive high-thermal-conductivity polyester single glass fiber aluminum flat wire |
| CN201514800U (en) * | 2009-06-03 | 2010-06-23 | 苏州巨峰金属线缆有限公司 | Copper flat wire coated with single-layer polyimide film and double-layer mica tape used for high-voltage motor |
| CN101951087A (en) * | 2010-09-15 | 2011-01-19 | 杨存高 | Method for manufacturing ground insulation layer of high-voltage motor stator coil, high-voltage motor stator coil and high-voltage motor |
| CN201853515U (en) * | 2010-11-02 | 2011-06-01 | 上海中马电磁线有限公司 | A glass fiber enamelled copper-clad aluminum flat wire |
| CN103413599A (en) * | 2013-08-26 | 2013-11-27 | 苏州巨峰电气绝缘系统股份有限公司 | Corona-resistant copper flat wire and method for manufacturing same |
| CN108878010A (en) * | 2018-06-27 | 2018-11-23 | 浙江龙鹰光电科技有限公司 | Industrial stove igniter enamelling cuprum round line |
| CN109287311A (en) * | 2018-09-26 | 2019-02-01 | 浙江德裕科技有限公司 | It is a kind of for promoting the spectrum cable architecture of crop photosynthesis |
-
2021
- 2021-10-25 CN CN202111237756.4A patent/CN113871081A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201413685Y (en) * | 2009-06-01 | 2010-02-24 | 苏州巨峰金属线缆有限公司 | Self-adhesive high-thermal-conductivity polyester single glass fiber aluminum flat wire |
| CN201514800U (en) * | 2009-06-03 | 2010-06-23 | 苏州巨峰金属线缆有限公司 | Copper flat wire coated with single-layer polyimide film and double-layer mica tape used for high-voltage motor |
| CN101951087A (en) * | 2010-09-15 | 2011-01-19 | 杨存高 | Method for manufacturing ground insulation layer of high-voltage motor stator coil, high-voltage motor stator coil and high-voltage motor |
| CN201853515U (en) * | 2010-11-02 | 2011-06-01 | 上海中马电磁线有限公司 | A glass fiber enamelled copper-clad aluminum flat wire |
| CN103413599A (en) * | 2013-08-26 | 2013-11-27 | 苏州巨峰电气绝缘系统股份有限公司 | Corona-resistant copper flat wire and method for manufacturing same |
| CN108878010A (en) * | 2018-06-27 | 2018-11-23 | 浙江龙鹰光电科技有限公司 | Industrial stove igniter enamelling cuprum round line |
| CN109287311A (en) * | 2018-09-26 | 2019-02-01 | 浙江德裕科技有限公司 | It is a kind of for promoting the spectrum cable architecture of crop photosynthesis |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115938650A (en) * | 2022-11-15 | 2023-04-07 | 方文玲 | A kind of anti-rust cable with low hydrogen loss and preparation method thereof |
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Application publication date: 20211231 |