CN109166667A - A kind of enameled wire manufacturing method with square cross-sectional shape - Google Patents
A kind of enameled wire manufacturing method with square cross-sectional shape Download PDFInfo
- Publication number
- CN109166667A CN109166667A CN201810928794.6A CN201810928794A CN109166667A CN 109166667 A CN109166667 A CN 109166667A CN 201810928794 A CN201810928794 A CN 201810928794A CN 109166667 A CN109166667 A CN 109166667A
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- China
- Prior art keywords
- wire
- sectional shape
- square cross
- enameled wire
- enameled
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/008—Apparatus or processes specially adapted for manufacturing conductors or cables for manufacturing extensible conductors or cables
Abstract
A kind of enameled wire manufacturing method with square cross-sectional shape, belongs to enameled wire technical field.The method of the present invention includes: step S01, and copper wire wire drawing is obtained the strip conductor of required thickness；Step S02 coats insulating film outside the conducting wire after wire drawing；Step S03 carries out calendering process to the conducting wire of coating insulating film, by strip conductor calendering in the conducting wire with square cross-sectional shape；Step S04, coiling obtain molding enameled wire.The enameled wire dimensional accuracy that the present invention produces is high, and film integrity is good, and thickness is uniform, and energy conversion rate is high.
Description
Technical field
The present invention relates to enameled wire technical fields, more particularly to one kind to have square-section enameled wire manufacturing method.
Background technique
Enameled wire is made of conductor and insulating layer two parts, and the coil for being widely used as the motors such as motor, compiler is used
Electric wire.Enameled wire is usually then using multiple japanning, to bake the annealed softening of bare wire.Enameled wire is divided into round paint
Envelope curve and flat enameled wire, for flat enameled wire compared with circle enameled wire, electric energy conversion efficiency is higher, and has more preferably flexibility
And flexibility, particularly suitable for electrical, electronic equipment.
Existing flat enameled wire manufacturing process is rolled after stretching bare wire, carries out film after calendering again.Make in this way
It is inaccurate to obtain flat enameled wire dimensional accuracy.
Patent of invention CN106409403B discloses a kind of flat enameled wire manufacturing process, and specifically discloses the technique packet
Include: (1) melting albronze, rolling stretch, until obtaining the bar shaped alloy lead wire of required thickness；(2) configuration anti oxidation layer is used
Coating liquid, bar shaped alloy lead wire immerse in the container for filling coating liquid, make the anti-of bar shaped alloy lead wire surface package required thickness
Oxide layer；(3) in the two sides of anti oxidation layer, successively coat polyurethane, self-adhesion paint and the lubricant of required thickness to get.The hair
It is bright to be improved from the angle of raw material, reduce the usage amount of copper product, so that manufactured enameled wire three-phase resistance is than general
Copper enameled wire is low, and the properties such as enameled wire no-load speed, the peak torque are more excellent.
Summary of the invention
In view of the problems of the existing technology the present invention, proposes that a kind of enameled wire dimensional accuracy is high, film integrity is good
The enameled wire manufacturing method with square cross-sectional shape.
The technical scheme is that:
A kind of enameled wire manufacturing method with square-section of the present invention, comprising:
Copper wire wire drawing is obtained the strip conductor of required thickness by step S01；
Step S02 coats insulating film outside the conducting wire after wire drawing；
Step S03 carries out calendering process to the conducting wire of coating insulating film, is in square cross-sectional shape by strip conductor calendering
Conducting wire；
Step S04, coiling obtain molding enameled wire.
The step S01 further comprises:
Step S11, in utilization machine drawing by hard copper wire from raw material state wire drawing at the strip conductor of medium size；
Step S12, using micro- machine drawing by the strip conductor wire drawing of medium size at the strip conductor of miniature sizes.
Preferably, step S02 further comprises:
Step S21, the conducting wire after making annealing treatment wire drawing；
Step S22 coats the insulating film that PU and PA material is constituted outside conducting wire.
Preferably, the section four corners of conducting wire are equipped with circular arc chamfering in step S03.
Preferably, step S03 is specifically included: cooling down to the conducting wire after coating insulating film, carry out at calendering later
Reason.
Preferably, the width edge length in the section and narrow side length ratio are 1.0-10.0.
Preferably, the chamfer radius in the section and narrow side length ratio are 0.15-0.50.
Preferably, the narrow side length in the section is 0.05-0.5mm.
The invention has the following advantages:
A kind of enameled wire manufacturing method with square cross-sectional shape of the present invention, calendering are long, at low cost using the pressure Kun service life；Manufacture
Enameled wire dimensional accuracy out is high, and film integrity is good.
Detailed description of the invention
Fig. 1 is existing enameled wire machining process flow chart；
Fig. 2 is a kind of flow diagram with square enamel-covered wire manufacturing method of the present invention；
Fig. 3 is a kind of sectional view that enameled wire is manufactured with square enamel-covered wire manufacturing method according to the present invention；
Fig. 4 is the sectional view that coil is turned to according to Fig. 3 enameled wire；
Fig. 5 is to turn to the filling rate range schematic diagram after coil according to Fig. 3 enameled wire.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
Fig. 1 shows existing enameled wire machining process flow.It is stretched first to by raw material copper wire, until obtaining required thickness
The strip conductor of degree, successively annealed later, film and be wound as molding enameled wire.Utilize manufacturing process general at present
Made enameled wire is circle enameled wire, and energy conversion efficiency is not high enough.
It is existing that flat enameled wire is manufactured on above-mentioned Process ba- sis, generally rolled before film of annealing, by a line paint
Envelope curve conductor part is rolled into flat.However, enameled wire coat poor continuity made of this method.And flat enameled wire
In various section morphologies, and cross sectional shape is irregular rectangular or oval, even polygon, when being used for coiling
When, each winding space difference is different, it is difficult to Optimum utilization coil space.
For this purpose, such as Fig. 2, the present invention provides a kind of enameled wire manufacturing method with square cross-sectional shape, comprising:
Copper wire wire drawing is obtained the strip conductor of required thickness by step S01；
Step S02 coats insulating film outside the conducting wire after wire drawing；
Step S03 carries out calendering process to the conducting wire of coating insulating film, is in square cross-sectional shape by strip conductor calendering
Conducting wire；
Step S04, coiling obtain molding enameled wire.
Specifically, the step S01 further comprises:
Step S11, in utilization machine drawing by hard copper wire from raw material state wire drawing at the strip conductor of medium size, such as will
The copper wire of 1.13mm diameter first with middle machine drawing wire drawing to 0.25mm diameter strip conductor.
Step S12 such as will using micro- machine drawing by the strip conductor wire drawing of medium size at the strip conductor of miniature sizes
The conducting wire of 0.25mm diameter utilizes micro- machine drawing wire drawing to the strip conductor of micron level.
Wherein, the section of the strip conductor is rounded.After each drawing step, using laser detection wire drawing at
Whether the strip conductor of type is uniform.
Later, insulating film is coated outside the conducting wire after wire drawing.Step S02 further comprises:
Step S21, the conducting wire after making annealing treatment wire drawing；
Step S22 coats the insulating film that PU and PA material is constituted outside conducting wire.
Conducting wire after wire drawing is made annealing treatment by oven, is soft wire by hard annealing conducting wire, using PU and
Insulating film is made in PA material, is coated in outside conducting wire.Later, the conducting wire after coating insulating film is cooled down, and is examined using laser
Whether the conductor thickness for surveying coating insulating film is uniform.
Then, using press, such as two pressure wheels act on strip conductor two sides, pass through opposite direction turning effort item two-by-two
Strip conductor calendering is the conducting wire with square cross-sectional shape by the mode of shape conducting wire two sides.And there is rectangular section after calendering
The conductor thickness of face shape is uniform, and film integrity is good.After calendering, the section of conducting wire has circular arc chamfering in its quadrangle.
Coil winding machine is finally utilized to obtain molding enameled wire in the conducting wire after calendering.
Such as Fig. 3,4, the enameled wire manufactured using the above method, section is rectangular.The paint with square cross-sectional shape
Envelope curve coiling by the way of parallel coiling, gap is smaller between adjacent enameled wire, and conductor filled rate is high.For example, using
The enameled wire coiling wireless charging receiving coil (such as Fig. 4), 4 lines inlet wire together when coiling.After coiling, filling rate is much higher than
78.5%。
Specifically, the ratio between width edge length (W) Yu narrow side length (N) of square-section are 1.0-10.0.The width edge length W
Refer to the lateral distance from a side of conductors cross to another side.The narrow side length N is referred to from conductor cross-sectional
Face top is to following fore-and-aft distance.
Wherein, the narrow side length is 0.05-0.5mm.For example, when narrow side length is 0.05mm, the width of square-section
Edge lengths and narrow side length ratio are 1.0, then width edge length is 0.05mm, then square-section is the square that side length is 0.05mm
Section；When narrow side length is 0.05mm, the width edge length and narrow side length ratio of square-section are 10.0, then width edge length is
0.5mm, then square-section is the rectangular cross-sectional of 0.05mm*0.5mm.For another example, when narrow side length is 0.5mm, square-section
Width edge length and narrow side length ratio be 1.0, then width edge length be 0.5mm, then square-section is the pros that side length is 0.5mm
Tee section；When narrow side length is 0.5mm, the width edge length and narrow side length ratio of square-section are 10.0, then width edge length
For 5mm, then square-section is the rectangular cross-sectional of 0.5mm*5mm.
The chamfer radius R and narrow side length ratio are 0.15-0.50.For example, when the narrow side length is 0.05mm, institute
It states chamfer radius and narrow side length ratio is 0.15, the chamfer radius is 0.0075mm；When the narrow side length is 0.5mm,
The chamfer radius and narrow side length ratio are 0.5, and the chamfer radius is 0.25mm.For another example, when the narrow side length is 0.5mm
When, the chamfer radius and narrow side length ratio are 0.15, and the chamfer radius is 0.075mm；When the narrow side length is 0.5mm
When, the chamfer radius and narrow side length ratio are 0.5, and the chamfer radius is 0.25mm.
Fig. 5, which shows the present invention, has the filling rate range after the enameled wire coiling of different square cross-sectional shapes, shows
4 kinds of situations are gone out, being respectively as follows: chamfer radius is 0.2mm, and it is one that width edge length, which is 1.0-2.0(every 0.1 with narrow side length ratio,
Lattice)；Chamfer radius is 0.3mm, and it is a lattice that width edge length, which is 1.0-2.0(every 0.1 with narrow side length ratio)；Chamfer radius is
It is a lattice that 0.4mm, width edge length and narrow side length ratio, which are 1.0-2.0(every 0.1)；Chamfer radius is 0.5mm, width edge length with it is narrow
Edge lengths ratio is that 1.0-2.0(every 0.1 is a lattice).
When chamfer radius is 0.2mm, width edge length and narrow side length ratio from 1.0 rise to 2.0 during, filling rate is extremely
Less it is 96%, is gradually increasing, rises to a maximum of about of 99%.As chamfer radius increases, every increase 0.1mm, filling rate will decline
4%-7%.In figure as it can be seen that when chamfer radius is 0.5mm, when width edge length and narrow side length ratio are 1.0, filling rate 78.54%,
Filling rate when filling rate is close to circle enameled wire coiling herein, when it with narrow side long-pressing length ratio is 2.0 that broadside is long, filling
Rate can reach about 90%.
Four kinds of situations in figure increase, filling rate as it can be seen that when chamfer radius is constant as width edge length and narrow side length compare
Increase.That is, when the timing of narrow side length one, i.e., consistency of thickness when, length ratio is bigger, and width edge length is bigger；And work as broadside
One timing of length, length ratio is bigger, and narrow side length is smaller, i.e., thickness is thinner.And four kinds of situation comparisons, chamfer radius 0.5mm
One group, filling rate increasing degree becomes apparent from compared with other two groups.
The method of the present invention is required according to enameled wire sectional dimension, can be used for the good enamel-cover of bulk production film integrity
Line.
It should be understood by those skilled in the art that foregoing description and the embodiment of the present invention shown in the drawings are only used as illustrating
And it is not intended to limit the present invention.The purpose of the present invention completely effectively realizes.Function and structural principle of the invention is in reality
It applies and shows and illustrate in example, under without departing from the principle, embodiments of the present invention can have any deformation or modification.
Claims (8)
1. a kind of enameled wire manufacturing method with square cross-sectional shape characterized by comprising
Copper wire wire drawing is obtained the strip conductor of required thickness by step S01；
Step S02 coats insulating film outside the conducting wire after wire drawing；
Step S03 carries out calendering process to the conducting wire of coating insulating film, is in square cross-sectional shape by strip conductor calendering
Conducting wire；
Step S04, coiling obtain molding enameled wire.
2. a kind of enameled wire manufacturing method with square cross-sectional shape according to claim 1, which is characterized in that described
Step S01 further comprises:
Step S11, in utilization machine drawing by hard copper wire from raw material state wire drawing at the strip conductor of medium size；
Step S12, using micro- machine drawing by the strip conductor wire drawing of medium size at the strip conductor of miniature sizes.
3. a kind of enameled wire manufacturing method with square cross-sectional shape according to claim 1, which is characterized in that step
S02 further comprises:
Step S21, the conducting wire after making annealing treatment wire drawing；
Step S22 coats the insulating film that PU and PA material is constituted outside conducting wire.
4. a kind of enameled wire manufacturing method with square cross-sectional shape according to claim 1, which is characterized in that step
The section four corners of conducting wire are equipped with circular arc chamfering in S03.
5. a kind of enameled wire manufacturing method with square cross-sectional shape according to claim 1, which is characterized in that step
S03 is specifically included: being cooled down to the conducting wire after coating insulating film, is carried out calendering process later.
6. a kind of enameled wire manufacturing method with square cross-sectional shape according to claim 4, which is characterized in that described
The width edge length and narrow side length ratio in section are 1.0-10.0.
7. a kind of enameled wire manufacturing method with square cross-sectional shape according to claim 6, which is characterized in that described
The chamfer radius and narrow side length ratio in section are 0.15-0.50.
8. a kind of enameled wire manufacturing method with square cross-sectional shape according to claim 7, which is characterized in that described
The narrow side length in section is 0.05-0.5mm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810928794.6A CN109166667A (en) | 2018-08-15 | 2018-08-15 | A kind of enameled wire manufacturing method with square cross-sectional shape |
| PCT/CN2018/106364 WO2020034301A1 (en) | 2018-08-15 | 2018-09-19 | Method for manufacturing enameled wire having square cross section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810928794.6A CN109166667A (en) | 2018-08-15 | 2018-08-15 | A kind of enameled wire manufacturing method with square cross-sectional shape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109166667A true CN109166667A (en) | 2019-01-08 |
Family
ID=64895823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810928794.6A Pending CN109166667A (en) | 2018-08-15 | 2018-08-15 | A kind of enameled wire manufacturing method with square cross-sectional shape |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109166667A (en) |
| WO (1) | WO2020034301A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020034302A1 (en) * | 2018-08-15 | 2020-02-20 | 浙江东尼电子股份有限公司 | Enameled wire having square cross-sectional shape |
| CN112735676A (en) * | 2020-12-25 | 2021-04-30 | 松田电工（台山）有限公司 | Production process for treating bone-shaped paint film of flat enameled wire |
| CN112786256A (en) * | 2020-12-29 | 2021-05-11 | 松田电工（台山）有限公司 | Technological method for uniformly coating paint film on flat enameled wire |
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| CN1988061A (en) * | 2006-12-30 | 2007-06-27 | 浙江先登电工器材股份有限公司 | Method for producing enamel covered aluminum flat wire |
| CN201936655U (en) * | 2011-03-21 | 2011-08-17 | 诚信漆包线（惠州）有限公司 | Lacquered wire for automobile ignition coil |
| CN103137268A (en) * | 2013-02-05 | 2013-06-05 | 广东威奇电工材料有限公司 | Production process of enameled rectangular wire and forming mechanism of enameled rectangular wire |
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| CN112735676A (en) * | 2020-12-25 | 2021-04-30 | 松田电工（台山）有限公司 | Production process for treating bone-shaped paint film of flat enameled wire |
| CN112735676B (en) * | 2020-12-25 | 2021-11-16 | 松田电工（台山）有限公司 | Production process for treating bone-shaped paint film of flat enameled wire |
| CN112786256A (en) * | 2020-12-29 | 2021-05-11 | 松田电工（台山）有限公司 | Technological method for uniformly coating paint film on flat enameled wire |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020034301A1 (en) | 2020-02-20 |
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