CN108399984A - A kind of enamel-cover harness continuous shifting method for shaping - Google Patents
A kind of enamel-cover harness continuous shifting method for shaping Download PDFInfo
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- CN108399984A CN108399984A CN201810172539.3A CN201810172539A CN108399984A CN 108399984 A CN108399984 A CN 108399984A CN 201810172539 A CN201810172539 A CN 201810172539A CN 108399984 A CN108399984 A CN 108399984A
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- enamel
- twisted
- sizing
- roller
- whole stock
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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
- H01B13/02—Stranding-up
- H01B13/0207—Details; Auxiliary devices
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- Manufacturing & Machinery (AREA)
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Abstract
The invention discloses a kind of enamel-cover harness continuous shifting method for shaping.More enamel covered wire steerings are twisted by shallow bid using wire stranding machine and form enamel-cover harness, twisted multiply enamel-cover harness replaces again is twisted into a whole stock, and whole stock is consistent with shallow bid conducting wire steering direction of lay；The roller apparatus being dislocatedly distributed using two vertical pairs carries out continuous shifting sizing to whole stock conducting wire.The present invention adjusts separately horizontal roller and vertical roller spacing according to product cross section size, can effectively control the dimensional discrepancy and resistance deviation of medium-high frequency litz wire, significantly improves the filling rate and motor effective utilization of medium-high frequency litz wire.
Description
Technical field
The present invention relates to a kind of enamel-cover harness continuous shifting method for shaping, and in particular to one kind can effectively ensure that litz wire height
The enamel-cover harness continuous shifting method for shaping of filling rate and the high effective utilization of motor belongs to litz wire forming field.
Background technology
When high frequency alternating current is by more coarse solid conductor in the middle, vertical current direction is generated in Inside and Outside of Conductor
Variation magnetic field, generates induced electromotive force, and induced electromotive force whole length direction in conductor generates vortex, conductive surface electric current side
To consistent with principal current, conductor current direction on the contrary, electric current tends to conductive surface thin layer flows through, generates " collection with principal current
Skin effect " makes conductor current-carrying cross section area reduce, effective resistance increases, eddy-current loss increases, motor effective utilization reduces.This
Outside, adjacent electric field makes electric current concentrate to adjacent side and be adversely affected to electromagnetism distribution, is formed " kindred effect ".
More relatively independent, mutually insulated enameled wires are combined into bunchy（Enamel-cover harness）Form litz wire, single Ritz
Line cross section is made of more equally distributed enameled wire cross sections, instead of the conducting wire of same area of section.Again by multiply phase
The single litz wire twisting molding mutually insulated, weakens kelvin effect and kindred effect, the efficiency of motor and transformer is made to obtain
Further promoted.But existing litz wire twisting method for shaping would ordinarily be encountered conductor molding, and tight ness rating is low, conductor surface insulation layer
The problems such as poor continuity, difficult insulating layer and conductor boundary processing, product cross section dimensional stability and the litz wire filling of acquisition
Rate is difficult to meet the requirement of medium-high frequency specific type of electric machine and transformer of new generation, and heat-resisting, Inverter fed motor, breakdown voltage property
It significantly reduces, has seriously affected the effective utilization of medium-high frequency motor.It would therefore be highly desirable to need research and development one kind that can effectively weaken collection skin
Effect and kindred effect, but can obtain excellent in dimension stability, high fill-ratio litz wire twisting transposition method for shaping.
Invention content
The present invention is to solve the deficiency of above-mentioned existing litz wire twisting method for shaping, provide a kind of kelvin effect with it is neighbouring
The enamel-cover harness continuous shifting method for shaping that effect is weak, product cross section good stability of the dimension, litz wire filling rate are high, and mainly use
In naval vessel electromagnetic ejection system, electromagnetism arresting system, electromagnetic railgun, torpedo battery and wind-powered electricity generation, nuclear power, new-energy automobile
Equal key technology areas.
Realize that the flow line of the present invention includes the following steps：A kind of enamel-cover harness continuous shifting method for shaping, including such as
Lower step：
The first step：More enamel covered wire steerings are twisted by shallow bid using wire stranding machine and form enamel-cover harness, twisted multiply enamel-cover
Harness is twisted into a whole stock using the transposition of identical direction of lay again；
Second step：The roller apparatus being dislocatedly distributed using two vertical pairs is carried out continuous shifting sizing to whole stock conducting wire, sets product
Sectional dimension a × b=(9 ~ 14) mm × (6 ~ 9) mm requires to adjust separately horizontal roller and vertical roller according to product cross section size
Spacing, and transposition sizing for the first time first is carried out to whole stock conducting wire, then secondary sizing is carried out, between horizontal roller when first transposition is shaped
It is respectively (a+1) mm and (b+1) mm away from A and vertical roller spacing B；Horizontal roller spacing A ' when secondary sizing and vertical roller
Spacing B ' is respectively [(a+1)-(0.5 ~ 0.8)] mm and [(b+1)-(0.5 ~ 0.8)] mm.
Wherein, in the first step, use 14 line footpaths for 0.8mm, tolerance be ± 0.008mm, do not include film thickness
Enamel covered wire steering is twisted into 9 strands of enamel-cover harness, and twisted 9 strands of enamel-cover harness are twisted into using the transposition of identical direction of lay again
One whole stock, direction of lay are " S types ", " Z-type " or " SZ types ".
Wherein, in second step, before carrying out first transposition sizing, whole stock conducting wire cladding polyester film avoids insulating
Layer abrasion；It is 3m/min that roller linear velocity, which is set, with whole stock conducting wire speed, avoids causing roller and insulated paint because of speed difference
The dynamic friction of generation.
To solve, the conductor molding tight ness rating that existing litz wire twisting method for shaping encounters is low, conductor surface insulation layer is continuous
Property poor, insulating layer and the problems such as conductor boundary processing difficult, by theory and practice method, have developed through " be twisted twice,
Replace twice " method for shaping, compared with the conventional method, remarkable advantage is：（1）Kelvin effect and kindred effect are weak（2）Product
Sectional dimension stability is good（3）Litz wire filling rate is high（4）Litz wire resistance deviation is small（5）Motor effective utilization is high.
Present invention is further described in detail below in conjunction with the accompanying drawings.
Description of the drawings
Fig. 1 is the flow line figure of enamel-cover harness continuous shifting method for shaping of the present invention.
Specific implementation mode
Such as Fig. 1, it is a kind of flow line of enamel-cover harness continuous shifting method for shaping of the present invention, includes the following steps：
The first step：To use wire stranding machine by 14 line footpaths be ± 0.008mm for 0.8mm, tolerance, does not include the enamel-cover copper of film thickness
Line steering is twisted into 9 strands of enamel-cover harness, and twisted 9 strands of enamel-cover harness replace again is twisted into a whole stock, and whole stock is twisted with shallow bid conducting wire
It is " S types " to close direction.
Second step：The roller apparatus being dislocatedly distributed using two vertical pairs carries out continuous shifting sizing to whole stock conducting wire.Setting
Product cross section size is：(9 ~ 14) mm × (6 ~ 9) mm requires to adjust separately horizontal roller and vertical roller according to product cross section size
Spacing is taken turns, and first transposition sizing first is carried out to whole stock conducting wire, then carries out secondary sizing.Horizontal roller when first transposition sizing
Spacing A and vertical roller spacing B is respectively (a+1) mm and (b+1) mm；Horizontal roller spacing A ' when secondary sizing and vertical roller
It is respectively [(a+1)-(0.5 ~ 0.8)] mm and [(b+1)-(0.5 ~ 0.8)] mm to take turns spacing B '.Setting roller linear velocity is led with whole stock
Linear velocity is 3m/min.
Embodiment 1
The first step：To use wire stranding machine by 14 line footpaths be ± 0.008mm for 0.8mm, tolerance, does not include the enamel-cover copper of film thickness
Line steering is twisted into 9 strands of enamel-cover harness, and twisted 9 strands of enamel-cover harness replace again is twisted into a whole stock, and whole stock is twisted with shallow bid conducting wire
It is " S types " to close direction.
Second step：The roller apparatus being dislocatedly distributed using two vertical pairs carries out continuous shifting sizing to whole stock conducting wire.Product
Sectional dimension requires：9.0mm × 9.0mm does not include thickness of insulating layer.Horizontal roller when first transposition sizing and vertical roller
Taking turns spacing is respectively：10.0mm and 10.0mm, horizontal roller and vertical roller spacing when secondary sizing are respectively：9.2mm and
9.2mm.Before carrying out first transposition sizing, whole stock conducting wire cladding polyester film avoids wearout.Roller linear velocity with
Whole stock conducting wire speed is 3m/min.
A kind of enamel-cover harness continuous shifting method for shaping of the present invention, the relevant parameter of acquisition are as follows：Dimensional discrepancy control exists
Within ± 0.25mm, resistance deviation controls within ± 1.2%, filling rate 78.4%.
Embodiment 2
The present embodiment difference from Example 1 is embodied in：Product cross section size requires：10.8mm × 7.5mm does not include exhausted
Edge layer thickness.Horizontal roller and vertical roller spacing when first transposition sizing are respectively：11.8mm and 8.5mm, secondary sizing
When horizontal roller and vertical roller spacing be respectively：11.3mm and 8.0mm.
A kind of enamel-cover harness continuous shifting method for shaping of the present invention, the relevant parameter of acquisition are as follows：Dimensional discrepancy control exists
Within ± 0.30mm, resistance deviation controls within ± 1.2%, filling rate 78.2%.
Embodiment 3
The present embodiment is embodied in embodiment 1 to 2 difference of embodiment：Product cross section size requires：11.0mm×
7.4mm does not include thickness of insulating layer.Horizontal roller and vertical roller spacing when first transposition sizing are respectively：12.0mm and
8.4mm, horizontal roller and vertical roller spacing when secondary sizing are respectively：11.2mm and 7.6mm.
A kind of enamel-cover harness continuous shifting method for shaping of the present invention, the relevant parameter of acquisition are as follows：Dimensional discrepancy control exists
Within ± 0.25mm, resistance deviation controls within ± 1.3%, filling rate 78.0%.
Embodiment 4
The present embodiment is embodied in embodiment 1 to 3 difference of embodiment：Product cross section size requires：12.0mm×
6.8mm does not include thickness of insulating layer.Horizontal roller and vertical roller spacing when first transposition sizing are respectively：13.0mm and
7.8mm, horizontal roller and vertical roller spacing when secondary sizing are respectively：12.2mm and 7.0mm.
A kind of enamel-cover harness continuous shifting method for shaping of the present invention, the relevant parameter of acquisition are as follows：Dimensional discrepancy control exists
Within ± 0.25mm, resistance deviation controls within ± 1.3%, filling rate 77.8%.
Embodiment 5
The present embodiment is embodied in embodiment 1 to embodiment 4 difference：Product cross section size requires：11.6mm×
7.0mm does not include thickness of insulating layer.Horizontal roller and vertical roller spacing when first transposition sizing are respectively：12.6mm and
8.0mm, horizontal roller and vertical roller spacing when secondary sizing are respectively：11.8mm and 7.2mm.
A kind of enamel-cover harness continuous shifting method for shaping of the present invention, the relevant parameter of acquisition are as follows：Dimensional discrepancy control exists
Within ± 0.25mm, resistance deviation controls within ± 1.3%, filling rate 78.1%.
Embodiment 6
The present embodiment is embodied in embodiment 1 to 5 difference of embodiment：Product cross section size requires：13.5mm×
6.0mm does not include thickness of insulating layer.Horizontal roller and vertical roller spacing when first transposition sizing are respectively：14.5mm and
7.0mm, horizontal roller and vertical roller spacing when secondary sizing are respectively：14.0mm and 6.5mm.
A kind of enamel-cover harness continuous shifting method for shaping of the present invention, the relevant parameter of acquisition are as follows：Dimensional discrepancy control exists
Within ± 0.30mm, resistance deviation controls within ± 1.2%, filling rate 78.2%.
Embodiment 7
The present embodiment is embodied in embodiment 1 to 6 difference of embodiment：Product cross section size requires：10.2mm×
8.0mm does not include thickness of insulating layer.Horizontal roller and vertical roller spacing when first transposition sizing are respectively：11.2mm and
9.0mm, horizontal roller and vertical roller spacing when secondary sizing are respectively：10.4mm and 8.2mm.
A kind of enamel-cover harness continuous shifting method for shaping of the present invention, the relevant parameter of acquisition are as follows：Dimensional discrepancy control exists
Within ± 0.25mm, resistance deviation controls within ± 1.3%, filling rate 77.8%.
Embodiment 8
The present embodiment is embodied in embodiment 1 to 7 difference of embodiment：Product cross section size requires：9.5mm × 8.5mm,
It does not include thickness of insulating layer.Horizontal roller and vertical roller spacing when first transposition sizing are respectively：10.5mm and 9.5mm,
Horizontal roller and vertical roller spacing when secondary sizing are respectively：10.0mm and 9.0mm.
A kind of enamel-cover harness continuous shifting method for shaping of the present invention, the relevant parameter of acquisition are as follows：Dimensional discrepancy control exists
Within ± 0.30mm, resistance deviation controls within ± 1.2%, filling rate 78.4%.
Embodiment 9
The present embodiment is embodied in embodiment 1 to 8 difference of embodiment：Product cross section size requires：10.5mm×
7.7mm does not include thickness of insulating layer.Horizontal roller and vertical roller spacing when first transposition sizing are respectively：11.5mm and
8.7mm, horizontal roller and vertical roller spacing when secondary sizing are respectively：11.0mm and 8.2mm.
A kind of enamel-cover harness continuous shifting method for shaping of the present invention, the relevant parameter of acquisition are as follows：Dimensional discrepancy control exists
Within ± 0.30mm, resistance deviation controls within ± 1.2%, filling rate 78.3%.
Embodiment 10
The present embodiment is embodied in embodiment 1 to 9 difference of embodiment：Product cross section size requires：12.5mm×
6.5mm does not include thickness of insulating layer.Horizontal roller and vertical roller spacing when first transposition sizing are respectively：13.5mm and
7.5mm, horizontal roller and vertical roller spacing when secondary sizing are respectively：12.9mm and 6.9mm.
A kind of enamel-cover harness continuous shifting method for shaping of the present invention, the relevant parameter of acquisition are as follows：Dimensional discrepancy control exists
Within ± 0.30mm, resistance deviation controls within ± 1.3%, filling rate 78.0%.
Embodiment 11
The present embodiment is embodied in embodiment 1 to 10 difference of embodiment：Product cross section size requires：10.0mm×
8.1mm does not include thickness of insulating layer.Horizontal roller and vertical roller spacing when first transposition sizing are respectively：11.0mm and
9.1mm, horizontal roller and vertical roller spacing when secondary sizing are respectively：10.2mm and 8.3mm.
A kind of enamel-cover harness continuous shifting method for shaping of the present invention, the relevant parameter of acquisition are as follows：Dimensional discrepancy control exists
Within ± 0.25mm, resistance deviation controls within ± 1.2%, filling rate 78.3%.
Embodiment 12
The present embodiment is embodied in embodiment 1 to 11 difference of embodiment：Product cross section size requires：11.4mm×
7.1mm does not include thickness of insulating layer.Horizontal roller and vertical roller spacing when first transposition sizing are respectively：12.4mm and
8.1mm, horizontal roller and vertical roller spacing when secondary sizing are respectively：11.9mm and 7.6mm.
A kind of enamel-cover harness continuous shifting method for shaping of the present invention, the relevant parameter of acquisition are as follows：Dimensional discrepancy control exists
Within ± 0.30mm, resistance deviation controls within ± 1.2%, filling rate 78.2%.
Claims (5)
1. enamel-cover harness continuous shifting method for shaping, which is characterized in that include the following steps：
The first step：More enamel covered wire steerings are twisted by shallow bid using wire stranding machine and form enamel-cover harness, twisted multiply enamel-cover
Harness is twisted into a whole stock using the transposition of identical direction of lay again；
Second step：The roller apparatus being dislocatedly distributed using two vertical pairs is carried out continuous shifting sizing to whole stock conducting wire, sets product
Sectional dimension a × b=(9 ~ 14) mm × (6 ~ 9) mm requires to adjust separately horizontal roller and vertical roller according to product cross section size
Spacing, and transposition sizing for the first time first is carried out to whole stock conducting wire, then secondary sizing is carried out, between horizontal roller when first transposition is shaped
It is respectively (a+1) mm and (b+1) mm away from A and vertical roller spacing B；Horizontal roller spacing A ' when secondary sizing and vertical roller
Spacing B ' is respectively [(a+1)-(0.5 ~ 0.8)] mm and [(b+1)-(0.5 ~ 0.8)] mm.
2. the method as described in claim 1, which is characterized in that in the first step, use 14 line footpaths for 0.8mm, tolerance be ±
0.008mm, the enamel covered wire steering including film thickness are twisted into 9 strands of enamel-cover harness, and twisted 9 strands of enamel-cover harness use again
Identical direction of lay transposition is twisted into a whole stock.
3. the method as described in claim 1, which is characterized in that in the first step, direction of lay is " S types ", " Z-type " or " SZ
Type ".
4. the method as described in claim 1, which is characterized in that in second step, before carrying out first transposition sizing, to whole stock
Conducting wire cladding polyester film.
5. the method as described in claim 1, which is characterized in that in second step, setting roller linear velocity and whole stock conducting wire speed
It is 3m/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810172539.3A CN108399984B (en) | 2018-03-01 | 2018-03-01 | Continuous transposition and shaping method for enameled wire bundle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810172539.3A CN108399984B (en) | 2018-03-01 | 2018-03-01 | Continuous transposition and shaping method for enameled wire bundle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108399984A true CN108399984A (en) | 2018-08-14 |
| CN108399984B CN108399984B (en) | 2020-01-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810172539.3A Active CN108399984B (en) | 2018-03-01 | 2018-03-01 | Continuous transposition and shaping method for enameled wire bundle |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101489325A (en) * | 2009-02-23 | 2009-07-22 | 包双喜 | Low impedance high efficient electromagnetic oven wire winding disc |
| CN201465603U (en) * | 2009-07-24 | 2010-05-12 | 天津经纬电材股份有限公司 | Winding wire with thin film winding round aluminum wire as multilayer transposition |
| CN201493419U (en) * | 2009-07-29 | 2010-06-02 | 常州市正和电磁线有限公司 | Semi-rigid extension device of transposed wire |
| CN102290131A (en) * | 2011-06-08 | 2011-12-21 | 江苏朗顺电工电气有限公司 | Direct-welding rectangular high-frequency Litz wire and production method thereof |
| CN102360928A (en) * | 2011-10-13 | 2012-02-22 | 保定天威集团有限公司 | Forging device and method for small-pitch transposed wire |
| CN103632801A (en) * | 2013-12-04 | 2014-03-12 | 中国科学院电工研究所 | Four-band shunt-wound high-temperature superconducting double-pie coil and winding die and winding method thereof |
| CN203910355U (en) * | 2014-01-26 | 2014-10-29 | 浙江光正电力材料有限公司 | Waxing device for electromagnetic wire |
-
2018
- 2018-03-01 CN CN201810172539.3A patent/CN108399984B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101489325A (en) * | 2009-02-23 | 2009-07-22 | 包双喜 | Low impedance high efficient electromagnetic oven wire winding disc |
| CN201465603U (en) * | 2009-07-24 | 2010-05-12 | 天津经纬电材股份有限公司 | Winding wire with thin film winding round aluminum wire as multilayer transposition |
| CN201493419U (en) * | 2009-07-29 | 2010-06-02 | 常州市正和电磁线有限公司 | Semi-rigid extension device of transposed wire |
| CN102290131A (en) * | 2011-06-08 | 2011-12-21 | 江苏朗顺电工电气有限公司 | Direct-welding rectangular high-frequency Litz wire and production method thereof |
| CN102360928A (en) * | 2011-10-13 | 2012-02-22 | 保定天威集团有限公司 | Forging device and method for small-pitch transposed wire |
| CN103632801A (en) * | 2013-12-04 | 2014-03-12 | 中国科学院电工研究所 | Four-band shunt-wound high-temperature superconducting double-pie coil and winding die and winding method thereof |
| CN203910355U (en) * | 2014-01-26 | 2014-10-29 | 浙江光正电力材料有限公司 | Waxing device for electromagnetic wire |
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| Publication number | Publication date |
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| CN108399984B (en) | 2020-01-24 |
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