CN108777191A - A kind of fire resisting electromagnetic wire - Google Patents
A kind of fire resisting electromagnetic wire Download PDFInfo
- Publication number
- CN108777191A CN108777191A CN201810550327.4A CN201810550327A CN108777191A CN 108777191 A CN108777191 A CN 108777191A CN 201810550327 A CN201810550327 A CN 201810550327A CN 108777191 A CN108777191 A CN 108777191A
- Authority
- CN
- China
- Prior art keywords
- indent
- film layer
- wire
- copper strap
- fire resisting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- H01B7/0266—Disposition of insulation comprising one or more braided layers of insulation
-
- 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
- H01B7/08—Flat or ribbon cables
- H01B7/0869—Flat or ribbon cables comprising one or more armouring, tensile- or compression-resistant elements
-
- 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
-
- 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
- H01B7/182—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments
- H01B7/183—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments forming part of an outer sheath
-
- 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
-
- 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
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
Landscapes
- Insulating Bodies (AREA)
Abstract
The present invention relates to a kind of fire resisting electromagnetic wires, belong to field of electrical equipment, including copper strap wire, it is surrounded with the first film layer and the second film layer successively from inside to outside on the outside of copper strap wire, there is the first indent away from the side of copper strap wire in first film layer, there is the second indent close to the side of the first film layer in second film layer, first indent and the cross-shaped state of the second indent after first film layer and the second film layer are close to, the extending direction of copper strap wire is x, the extending direction of first indent and the second indent is symmetrically disposed on the both sides x, angle between first indent and the second indent is θ, the geometric ranges of θ are：0 ° of 180 ° of < θ <, the second film surface is uniformly provided with perforative pin hole.The technical solution guides the extending direction of crackle, copper strap wire is avoided to be directly exposed in environment by the design of the first indent and the second indent；And the air of duplicature inner inclusion when wrapped can be guided and is discharged by the design of the first indent and the second indent, avoid wrapped generation bubble in the process.
Description
Technical field
The present invention relates to a kind of fire resisting electromagnetic wires, belong to field of electrical equipment.
Background technology
Electromagnetic wire is also known as winding wire, is the insulated electric conductor for manufacturing coil or winding in electric product.Electromagnetic wire is logical
Often it is divided into enameled wire, winding wire, enamel-cover winding wire and inorganic insulated wire.Electromagnetic wire must satisfy in a variety of uses and manufacturing process
Requirement need to have shape wherein in its application process, specification, can work at high temperature in short-term and for a long time, and bear
Centrifugal force under judder in certain occasions and high speed, the tolerance corona under high voltage and breakdown, it is resistance under special atmosphere
The abilities such as chemical attack；In manufacturing process, needs to have including coiling and wanted when embedding through Tensile, bending and abrasion
It asks, and the abilities such as swelling, corrosion function in dipping and drying course.Existing electromagnetic wire is mostly outside copper strap wire around coating
Layer or fibrous layer, then according to electromagnetic wire application environment in electromagnetic wire surface spraying waterproof or the coating of fire resisting, but due to applying
Material is difficult to penetrate into film layer, therefore mostly uses single-layer membrane structure greatly, although single-layer membrane structure production procedure is simple, when electricity
After magnet-wire long-time use, after film surface cracking, it is easy to cause internal copper strap wire and is directly exposed in environment, there are larger
Security risk.
Invention content
To solve problems of the prior art, the present invention provides a kind of electromagnetic wires, can retain fire resisting function
While, by the structure that two membranes are wrapped, film layer is avoided to crack in same position.Specific technical solution is as follows：
A kind of fire resisting electromagnetic wire, including copper strap wire, be surrounded with successively from inside to outside on the outside of the copper strap wire the first film layer and
Second film layer has the first indent in first film layer away from the side of copper strap wire, close to the first film in second film layer
The first indent and the second indent are cross-shaped after there is the second indent, first film layer and the second film layer to be close to for the side of layer
State, the extending direction of the copper strap wire are x, and the extending direction of first indent and the second indent is symmetrically disposed on the both sides x, institute
It is θ to state the angle between the first indent and the second indent, and the geometric ranges of θ are：0 ° of 180 ° of < θ <, second film surface
It is uniformly provided with perforative pin hole.
As an improvement of the above technical solution, the angle theta between first indent and the second indent is 90 °.
As an improvement of the above technical solution, glass layer, the glass fibre are also surrounded with outside second film layer
Layer is worked out by multigroup glass fiber.
As an improvement of the above technical solution, fire prevention is evenly distributed between the glass layer and the first film layer to apply
Layer.
As an improvement of the above technical solution, the number of the first indent has multiple and the first indent in first film layer
It is arranged in parallel between each other, the number of the second indent has multiple and the second indent is parallel between each other to set in second film layer
It sets, first indent and the second indent number are identical.
As an improvement of the above technical solution, the depth of first indent and the second indent be L, first film layer and
The thickness of second film layer is that the geometrical relationship of D, L and D are 0 < L≤0.4D.
As an improvement of the above technical solution, the material of first film layer and the second film layer is polyester or polyimides.
Above-mentioned technical proposal has the advantages that following two：
(1) by the design of the first indent and the second indent, the extending direction of crackle, the first film layer and the second film layer are guided
When cracking, the crack orientation of two membranes is different, and copper strap wire is avoided to be directly exposed in environment；
The air of duplicature inner inclusion when wrapped can be guided and is discharged by the design of (2) first indents and the second indent,
It avoids generating bubble, improves the reliability of electromagnetic wire, advantageous effect is notable.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of fire resisting electromagnetic wire of the present invention.
Specific implementation mode
As shown in Figure 1, the present invention provides a kind of fire resisting electromagnetic wire, including copper strap wire 10,10 outside of copper strap wire are certainly introversive
Outer to be surrounded with the first film layer 20 and the second film layer 30 successively, the side that copper strap wire 10 is deviated from the first film layer 20 has the first indent
21, there is the second indent 31 close to the side of the first film layer 20 in the second film layer 30, the first film layer 20 and the second film layer 30 are close to
The extending direction of 31 cross-shaped state of first indent 21 and the second indent afterwards, copper strap wire 10 is x, the first indent 21 and the second indent
31 extending direction is symmetrically disposed on the both sides x, and the angle between the first indent 21 and the second indent 31 is θ, the geometric ranges of θ
For：0 ° of 180 ° of < θ <, 30 surface of the second film layer are uniformly provided with perforative pin hole 32.
In said program, it is provided with the first indent 21 and the second indent 31 in the first film layer 20 and the second film layer 30, first
Indent 21 and the second indent 31 are symmetrical arranged along 10 extending direction x of copper strap wire, and there are two the effects of aspect for this setup：The
One, after long-term use due to electromagnetic wire, the first film layer 20 and the second film layer 30 are likely to crack, and this programme passes through
The extending direction of one indent 21 and the second indent 31 guiding crackle, due to 31 cross-distribution of the first indent 21 and the second indent, i.e.,
Make the first film layer 20 and the second film layer 30 while cracking, the crack orientation of two membranes is also different, is located at the second film of outer layer
Layer 30 can cover in the first film layer 20 cracked, therefore copper strap wire 10 will not crack because of film layer and be directly exposed to ring
In border；Second, entrained air bubbles, therefore the design of the first indent 21 and the second indent 31 are easy when wrapped using double membrane structure
Air can be guided to be discharged, avoid generating bubble.
In said program, 30 surface of the second film layer is uniformly provided with perforative pin hole 32, when needs apply on electromagnetic wire surface
When covering or impregnating fireproof coating, fireproof coating can be entered between the first film layer 20 and the second film layer 30 by pin hole 32.
In said program, the angle between the first indent 21 and the second indent 31 is θ, and the range of θ is 0 ° of 180 ° of < θ <,
Design in this way is in order to avoid the first indent 21 and the second indent 31 overlap, and the angle of θ is preferably 90 °.
Further, it is also surrounded with glass layer 40 outside the second film layer 30, glass layer 40 is by multigroup glass fibre
Silk 41 is worked out, using the glass layer 40 for the wrapped formation of glass fiber mesh that glass fiber 41 is worked out, glass fibre
It is evenly distributed with fire resistant coating 22 between layer 40 and the first film layer 20.There are three effects for glass layer 40 in the program：First,
The mechanical performance on electromagnetic wire surface can be increased substantially, scratch resistance capability also greatly improves；Second, in the first film layer 20 and
When two film layers 30 are cracked, glass layer 40 can be good at fettering the first film layer 20 and the second film layer 30, avoid copper flat
Line 10 is directly exposed in environment；Third, when electromagnetic wire surface is coated or impregnated with fireproof coating, coating can pass through netted
Glass layer 40 enters 30 surface of the first film layer 20 and the second film layer, and fireproof coating being uniformly distributed between the layers
Each layer can be made to form fire resistant coating 22, to improve the service life of electromagnetic wire.
Further, the number of first indent 21 has multiple and the first indent 21 flat between each other in the first film layer 20
Row is arranged, and there is multiple the number of second indent 31, the second indent 31 is arranged in parallel between each other, the first indent in the second film layer 30
21 is identical with 31 number of the second indent, 21 and second indent 31 of this first indent structure full symmetric in angle and number,
The consistency that each region mechanical property of film layer structure can be greatly improved, to improve the service life of electromagnetic wire.
Further, the depth of the first indent 21 and the second indent 31 is L, the thickness of the first film layer 20 and the second film layer 30
Degree is that the geometrical relationship of D, L and D are 0 < L≤0.4D, and the depth L of the program pair the first indent 21 and the second indent 31 is limited
It is fixed, it is contemplated that for this indent structure mainly for guiding direction of check and discharge air, depth is unsuitable too deep.
10 outside of copper strap wire is provided with two layers of film layer in said program：First film layer 20 and the second film layer 30, material can be with
Polyester or polyimides are selected, this material is identical as being used in electromagnetic wire film-coating technique in the prior art, the second film layer 30
Wrapped 40 material of glass layer of outer layer is glass fibre, and glass fibre has good anti-flammability and electrical insulating property, can
The use for greatly improving electromagnetic wire is awaited your instructions.
The embodiments of the present invention have been described in detail above, but content is only the preferred embodiment of the present invention,
The practical range of the present invention is should not be construed as limiting, all changes and improvements made in accordance with the scope of the present invention should all
It still belongs within covering scope of the present invention.
Claims (7)
1. a kind of fire resisting electromagnetic wire, which is characterized in that including copper strap wire, be surrounded with the on the outside of the copper strap wire successively from inside to outside
One film layer and the second film layer have the first indent away from the side of copper strap wire in first film layer, are leaned in second film layer
The first indent and the second indent are in after there is the second indent, first film layer and the second film layer to be close to for the side of nearly first film layer
Crossing condition, the extending direction of the copper strap wire are x, and the extending direction of first indent and the second indent is symmetrically disposed on x
Both sides, the angle between first indent and the second indent are θ, and the geometric ranges of θ are：0 ° of 180 ° of < θ <, second film
Layer surface is uniformly provided with perforative pin hole.
2. a kind of fire resisting electromagnetic wire as described in claim 1, which is characterized in that between first indent and the second indent
Angle theta is 90 °.
3. a kind of fire resisting electromagnetic wire as claimed in claim 2, which is characterized in that be also surrounded with glass fibers outside second film layer
Layer is tieed up, the glass layer is worked out by multigroup glass fiber.
4. a kind of fire resisting electromagnetic wire as claimed in claim 3, which is characterized in that between the glass layer and the first film layer
It is evenly distributed with fire resistant coating.
5. a kind of fire resisting electromagnetic wire as claimed in claim 4, which is characterized in that the number of the first indent in first film layer
There is multiple and the first indent to be arranged in parallel between each other, the number of the second indent has multiple and the second pressure in second film layer
Slot is arranged in parallel between each other, and first indent and the second indent number are identical.
6. a kind of fire resisting electromagnetic wire as claimed in claim 5, which is characterized in that the depth of first indent and the second indent
For L, the thickness of first film layer and the second film layer is that the geometrical relationship of D, L and D are 0 < L≤0.4D.
7. a kind of fire resisting electromagnetic wire as described in claim 1, which is characterized in that the material of first film layer and the second film layer
For polyester or polyimides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810550327.4A CN108777191A (en) | 2018-05-31 | 2018-05-31 | A kind of fire resisting electromagnetic wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810550327.4A CN108777191A (en) | 2018-05-31 | 2018-05-31 | A kind of fire resisting electromagnetic wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108777191A true CN108777191A (en) | 2018-11-09 |
Family
ID=64028322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810550327.4A Withdrawn CN108777191A (en) | 2018-05-31 | 2018-05-31 | A kind of fire resisting electromagnetic wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108777191A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4261849A1 (en) * | 2022-04-15 | 2023-10-18 | hpw Metallwerk GmbH | Busbar |
-
2018
- 2018-05-31 CN CN201810550327.4A patent/CN108777191A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4261849A1 (en) * | 2022-04-15 | 2023-10-18 | hpw Metallwerk GmbH | Busbar |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181109 |
|
| WW01 | Invention patent application withdrawn after publication |