CN110431644A - The manufacturing method of insulated electric conductor - Google Patents
The manufacturing method of insulated electric conductor Download PDFInfo
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- CN110431644A CN110431644A CN201880018468.XA CN201880018468A CN110431644A CN 110431644 A CN110431644 A CN 110431644A CN 201880018468 A CN201880018468 A CN 201880018468A CN 110431644 A CN110431644 A CN 110431644A
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- Prior art keywords
- conductor
- insulating film
- envelope
- flat site
- insulated electric
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
-
- 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
- H01B13/06—Insulating conductors or cables
- H01B13/16—Insulating conductors or cables by passing through or dipping in a liquid bath; by spraying
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F5/00—Coils
- H01F5/06—Insulation of windings
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Removal Of Insulation Or Armoring From Wires Or Cables (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Processes Specially Adapted For Manufacturing Cables (AREA)
Abstract
The present invention relates to the manufacturing methods of insulated electric conductor, it include: preparation linear conductor, conductor includes first and second conductor flat site for linear region and the first conductor corner area for connecting first and second conductor flat site in the peripheral shape perpendicular to the section of length direction；The insulating film being made of insulating material is formed on conductor and covering conductor periphery with insulating material, insulating film has the first, second envelope flat site corresponding with the first, second conductor flat site and the first conductor corner area and the first envelope corner area respectively in the peripheral shape in the section on the direction perpendicular to the length direction along conductor；Investigate the formation state of envelope, laser is irradiated to the first position of the first envelope flat site and the second position that separates in the circumferential direction of insulating film with first position, and laser is irradiated to the third place of the second envelope flat site, the formation state based on envelope surface reflected light and interface reflected light investigation envelope.
Description
Technical field
The present invention relates to the manufacturing methods of insulated electric conductor.This application claims based on Japanese Shen filed in 17 days 03 month in 2017
Priority that please be No. 2017-053629, quotes all contents documented by above-mentioned Japanese publication.
Background technique
As insulated electric conductor, for instance it is known to include the insulation of linear conductor and the insulating film formed in the peripheral side of the conductor
Electric wire, the flat region in region of the conductor of the threadiness in the peripheral shape perpendicular to the section of length direction with linear
Domain.(referring for example to patent document 1).
Patent document 1: Japanese Unexamined Patent Publication 2013-051030 bulletin
Summary of the invention
The manufacturing method of the insulated electric conductor of the disclosure, comprising: preparation has the step of conductor of linear shape, the conductor
In the peripheral shape perpendicular to the section of length direction, including being led for the first conductor flat site in linear region and second
First conductor corner regions of body flat site and connection the first conductor flat site and the second conductor flat site
Domain；By covering the peripheral side of the conductor with insulating material, to be formed on the conductor by the insulating material
The step of insulating film of composition, the insulating film is perpendicular to the section on the direction of the length direction of the conductor
In peripheral shape, have respectively with the first conductor flat site, the second conductor flat site and first conductor
The corresponding first envelope flat site of corner area, the second envelope flat site and the first envelope corner area；And investigation
The step of formation state of the insulating film, in the step of investigating the formation state of the insulating film, Xiang Suoshu first
The first position of envelope flat site and the second position separated in the circumferential direction of the insulating film with the first position are shone
Laser is penetrated, and irradiates laser to the third place of the second envelope flat site, based on the insulation quilt from the light
The reflected light on the surface of film, that is, envelope surface reflected light and reflected light from the insulating film Yu the interface of the conductor
That is interface reflected light investigates the formation state of the insulating film.
[disclosure project to be solved]
In the insulated electric conductor of above-mentioned existing technical literature, if insulating film in the section vertical with length direction
The deviation of film thickness generates, then insulating properties reduces in the thin place of the thickness of insulating film.Therefore, it is necessary to suitably manage insulation quilt
The formation state of film.Therefore, the first purpose is to provide a kind of manufacturing method of insulated electric conductor, comprising with flat site
In the manufacture of the insulated electric conductor of conductor, the formation state of insulating film can be suitably managed.In addition, another purpose is to mention
For a kind of investigation method of insulated electric conductor, the formation state of insulating film can be suitably managed.
[effect of the disclosure]
According to the manufacturing method of the insulated electric conductor of the disclosure, being capable of providing to include the conductor with flat site
In the manufacture of insulated electric conductor, the manufacturing method of the insulated electric conductor of the formation state of insulating film is suitably managed.In addition, according to this
The investigation method of disclosed insulated electric conductor is capable of providing the insulated electric conductor for the formation state that can suitably manage insulating film
Investigation method.
Detailed description of the invention
Fig. 1 is the summary stereogram of an example of the insulated electric conductor manufactured in the manufacturing method for indicate insulated electric conductor.
Fig. 2 is the block diagram for illustrating the manufacturing device of insulated electric conductor.
Fig. 3 is the schematic diagram for indicating the structure in insulating film light splitting investigation portion.
Fig. 4 is to indicate that insulating film is divided the one of the allocation position of the laser sensor in investigation portion and the relationship of insulated electric conductor
The summary stereogram of example.
Fig. 5 is the schematic diagram for indicating the structure in direct capacitance measurement portion.
The flow chart for the step of Fig. 6 is the manufacturing method for indicating insulated electric conductor.
Fig. 7 is the schematic diagram for the situation for the investigation for illustrating the formation state of the insulating film based on optical spectroscopy.
Fig. 8 is the schematic diagram for indicating an example of investigation in insulating film light splitting investigation portion.
Fig. 9 is the schematic cross sectional view for indicating an example of insulated electric conductor.
Figure 10 is the schematic cross sectional view for indicating an example of insulated electric conductor.
Figure 11 is the schematic cross sectional view for indicating an example of insulated electric conductor.
Figure 12 is the schematic cross sectional view for indicating an example of insulated electric conductor.
Figure 13 is the schematic cross sectional view for indicating an example of insulated electric conductor.
Figure 14 is the relationship for indicating the allocation position and insulated electric conductor of the laser sensor in insulating film light splitting investigation portion
The summary stereogram of an example.
Symbol description
1 insulated electric conductor
The section 1S
2 conductors
2A the first conductor flat site
2B the second conductor flat site
2C third conductor flat site
The 4th conductor flat site of 2D
2R1First conductor corner area
2R2Second conductor corner area
2R3Third conductor corner area
2R44th conductor corner area
3 insulating films
3A the first envelope flat site
3B the second envelope flat site
The flat field of 3C third envelope
The 4th flat field of envelope 3D
31First envelope corner area
3R2Second envelope corner area
3R3Third envelope corner area
3R44th envelope corner area
5 manufacturing devices
10 conductor preparing portion
12 wire rod supply units
14 forming sections
16 envelope forming portions
18 inspection portions
20 insulating films are divided investigation portion
22 static capacity measurement portions
24 reeling ends
30a the first main laser sensor
30b the second main laser sensor
30c third main laser sensor
The 4th main laser sensor of 30d
The secondary laser sensor of 32a first
The secondary laser sensor of 32b second
40A laser
40B laser
40C laser
40D laser
42A laser
42B laser
44 envelope surface reflected lights
45 interface reflected lights
51 main irradiation areas
52 main irradiation areas
53 secondary irradiation areas
54 secondary irradiation areas
60 capacitance sensors
62 main electrodes
The first guard electrode of 64A
The second guard electrode of 64B
66 shells
68 static capacity detectors
Specific embodiment
[explanation of the embodiment of the disclosed invention]
The embodiment of the disclosed invention is listed first and is illustrated.The manufacturing method packet of the insulated electric conductor of the disclosure
Include: preparation there is the step of conductor of linear shape, the conductor in the peripheral shape perpendicular to the section of length direction, including
For the first conductor flat site in linear region and the second conductor flat site and the first conductor flat site of connection and the
First conductor corner area of two conductor flat sites；By covering the peripheral side of conductor with insulating material, thus described
The step of insulating film being made of insulating material is formed on conductor, the insulating film is perpendicular to along the length side of conductor
To direction on section peripheral shape in, have respectively with the first conductor flat site, the second conductor flat site and the
The corresponding first envelope flat site of one conductor corner area, the second envelope flat site and the first envelope corner area；With
And the step of investigating the formation state of insulating film.It is flat to the first envelope in the step of investigating the formation state of insulating film
Laser is irradiated in the first position in smooth region and the second position separated in the circumferential direction of insulating film with first position, and to second
The third place of envelope flat site irradiates laser, and the reflected light, that is, envelope surface on the surface based on the insulating film from light is anti-
The reflected light i.e. interface reflected light for penetrating light and the interface from insulating film and conductor, investigates the formation state of insulating film.
In insulated electric conductor, if locally being generated exhausted in above-mentioned section inner conductor relative to insulating film relative displacement
The deviation of the film thickness of edge envelope.In addition, including in the insulated electric conductor with the conductor of flat site, if conductor is relative to insulation
Envelope rotation, then generate the deviation of film thickness.If the deviation of film thickness is generated, in the insulating properties office of the local insulated electric conductor of thinner thickness
It reduces to portion, as a result, the partial discharge inception voltage of insulated electric conductor declines.Therefore, as the manufacturer of insulated electric conductor
Method, pursues the formation state that can manage the insulating film in the section vertical with length direction, and manufacture has stable insulation
The manufacturing method of the insulated electric conductor of property.
The manufacturing method of the insulated electric conductor of the disclosure, including to the first position and the second position of the first envelope flat site
It irradiates laser and irradiates laser, the reflected light based on the surface from insulating film to the third place of the second envelope flat site
That is the reflected light of envelope surface reflected light and the interface from insulating film and conductor, that is, interface reflected light investigates insulating film
Formation state the step of.As described above, investigating the formation state of insulating film by irradiation laser, it is opposite to be able to detect conductor
It is abnormal caused by the relative displacement and rotation of insulating film.In addition, formed state investigation can in a manner of nondestructive into
Row.As a result, can more locally manage insulating film in the manufacturing step of the insulated electric conductor of the shape with flat site
Formation state, as a result, it is possible to provide the insulated electric conductor with stable insulating properties.
Preferably, in the step of investigating the formation state of insulating film, also insulating to the second envelope flat site
The 4th position irradiation laser separated in the circumferential direction of envelope with the third place, is based on envelope surface reflected light and interface reflected light tune
Look into the formation state of insulating film.By respectively to the 2 of 2 places of the first envelope flat site and the second envelope flat site
A place irradiation laser can more reliably detect opposite displacement, rotation of the conductor relative to insulated electric conductor.
Preferably, the conductor of insulated electric conductor is in the section perpendicular to the length direction of conductor with the periphery shape of polygon
Shape, insulating film have the more of the peripheral shape along conductor in the section on the direction perpendicular to the length direction along conductor
The peripheral shape of side shape.Here, " polygon " includes not only stringent polygon, further includes the fillet polygon of angular distortion.Tool
Efficiency when thering is the insulated electric conductor of this shaped conductors to can be improved motor processing.
Preferably, in the manufacturing method of above-mentioned insulated electric conductor, the conductor of preparation is the shape of quadrangle, perpendicular to
It also include the third conductor flat site and the 4th conductor in linear region in the peripheral shape in the section of the length direction of conductor
Flat site, connection the second conductor flat site and the second conductor corner area of third conductor flat site connect third and lead
Body flat site and the third conductor corner area of the 4th conductor flat site and it connect the 4th conductor flat site and first
4th conductor corner area of conductor flat site.Preferably, the insulating film of formation is the shape of quadrangle, perpendicular to
In the peripheral shape in the section on the direction of the length direction of conductor, also comprising respectively with third conductor flat site and the 4th
Conductor flat site and the second conductor corner area, third conductor corner area and the 4th conductor corner area corresponding
Three envelope flat sites and the 4th envelope flat site and the second envelope corner area, third envelope corner area and the 4th quilt
Film corner area.It is preferred that at this point, in the step of investigating the formation state of insulating film, respectively to third envelope flat site and
4th envelope flat site irradiates laser, investigates insulating film based on envelope surface reflected light and insulating film and interface reflected light
Formation state.In addition, " quadrangle " not only includes stringent quadrangle, the fillet rectangle for also including angular distortion, fillet are just
The rectangular quadrangle such as rectangular.
In this way, if used the laser of 4 envelope flat sites irradiation to from first to the 4th respectively and its anti-
The optical spectroscopy of light is penetrated, then can investigate the exhausted of region corresponding to each side of the quadrangle of the peripheral shape as insulating film
The formation state of edge envelope.As a result, it is possible to more strictly manage the formation state of insulating film.
Preferably, above-mentioned conductor has rectangular peripheral shape in the section perpendicular to the length direction of conductor, absolutely
Edge envelope has the rectangular of the peripheral shape along conductor in the section on the direction perpendicular to the length direction along conductor
Peripheral shape.The insulated electric conductor of conductor with this shape, has and is easy the advantages of batching when take-up.In addition, rectangle is also
Include the quadrangle that square shape and fillet rectangle, rounded square etc. are rectangular.
Preferably, in the step of investigating the formation state of insulating film, the static capacity of insulated electric conductor is also detected, is based on
The film thickness of insulating film and the relationship of static capacity investigated out in advance further investigate the formation state of insulating film.Pass through base
The formation state of insulating film is further investigated in the film thickness for the insulating film investigated out in advance and the relationship of static capacity, it can
Calculate the average film thickness of insulating film.Furthermore it is possible to evaluate the insulation characterisitic of film thickness and insulating film together.Therefore, can more have
The formation state for efficient managing insulating film, can manufacture the more stable insulated electric conductor of insulation characterisitic.
Preferably, above-mentioned insulating film includes the thermosetting resins such as polyamidoimide, polyimide.Especially containing poly-
The insulating film of imide, insulating properties and heat resistance are outstanding.Therefore, polyimide is properly as the material for constituting insulating film.
Preferably, the step of investigating the formation state of insulating film by carrying out online.The formation of insulating film will be investigated
The step of state, by being investigated online, thereby, it is possible to be carried out continuously the manufacture of insulated electric conductor, can be obtained with high production efficiency
To insulated electric conductor.In addition, the state investigated online, which refers to, does not stop production line, the tune of the formation state of insulating film is carried out
The state looked into.
Preferably, the first position and the second position for irradiating laser are matched on the direction along the length direction of conductor
It is placed in position different from each other.It is improved as a result, for investigating the freedom degree of the configuration of the device of the formation state of insulating film.
The investigation method of the insulated electric conductor of the disclosure is the investigation method with the insulated electric conductor of conductor and insulating film,
The conductor has linear shape, and the insulating film covers the peripheral side of the conductor by insulating material,
First conductor of the conductor in the peripheral shape perpendicular to the section of length direction with linear region is flat
Smooth region and the second conductor flat site, and connection the first conductor flat site and the second conductor flat site the
One conductor corner area,
The insulating film has in the peripheral shape perpendicular to the section on the direction of the length direction of the conductor
Have corresponding with the first conductor flat site, the second conductor flat site and the first conductor corner area respectively
The first envelope flat site, the second envelope flat site and the first envelope corner area,
To the first position of the first envelope flat site and in the circumferential direction of the insulating film with described first
Separated second position irradiation laser is set, and irradiates laser to the third place of the second envelope flat site, based on coming from
The reflected light on the surface of the insulating film of the light, that is, envelope surface reflected light and from the insulating film with it is described
The reflected light at the interface of conductor, that is, interface reflected light investigates the formation state of the insulating film.
Preferably, investigation insulating film formation state method in, also to the second envelope flat site, insulating
The 4th position irradiation laser separated in the circumferential direction of envelope with the third place, is based on envelope surface reflected light and interface reflected light tune
Look into the formation state of insulating film.Pass through 2 ground in 2 places and the second envelope flat site to the first envelope flat site
Laser is irradiated respectively in side, can more reliably detect opposite displacement, rotation of the conductor relative to insulated electric conductor.
Preferably, the conductor of insulated electric conductor is in the section perpendicular to the length direction of conductor with the periphery shape of polygon
Shape, insulating film have the more of the peripheral shape along conductor in the section on the direction perpendicular to the length direction along conductor
The peripheral shape of side shape.Here, " polygon " includes not only stringent polygon, further includes the fillet polygon of angular distortion.Tool
Efficiency when thering is the insulated electric conductor of this shaped conductors to can be improved motor processing.
Preferably, in the manufacturing method of above-mentioned insulated electric conductor, the conductor of preparation is perpendicular to the length direction of conductor
The peripheral shape in section also includes that the third conductor flat site in linear region and the 4th conductor flat site, connection second are led
Body flat site and the second conductor corner area of third conductor flat site connect third conductor flat site and the 4th conductor
The third conductor corner area and the 4th conductor flat site of connection of flat site are led with the 4th of the first conductor flat site
The shape of the quadrangle of body corner area.Preferably, the insulating film of formation is in the side perpendicular to the length direction along conductor
In the peripheral shape in upward section, also comprising respectively with third conductor flat site and the 4th conductor flat site and second
Conductor corner area, third conductor corner area and the corresponding third envelope flat site of the 4th conductor corner area and the 4th
The quadrangle of envelope flat site and the second envelope corner area, third envelope corner area and the 4th envelope corner area
Shape.It is preferred that at this point, investigation insulating film formation state method in, respectively to third envelope flat site and the 4th quilt
Film flat site irradiates laser, the formation based on envelope surface reflected light and insulating film and interface reflected light investigation insulating film
State.In addition, " quadrangle " not only includes stringent quadrangle, it also include fillet rectangle, rounded square etc. of angular distortion
Rectangular quadrangle.
In this way, if used the laser of 4 envelope flat sites irradiation to from first to the 4th respectively and its anti-
The optical spectroscopy of light is penetrated, then can investigate the exhausted of region corresponding to each side of the quadrangle of the peripheral shape as insulating film
The formation state of edge envelope.As a result, it is possible to more strictly manage the formation state of insulating film.
Preferably, above-mentioned conductor has rectangular peripheral shape in the section perpendicular to the length direction of conductor, absolutely
Edge envelope has the rectangular of the peripheral shape along conductor in the section on the direction perpendicular to the length direction along conductor
Peripheral shape.The insulated electric conductor of conductor with this shape, has and is easy the advantages of batching when take-up.In addition, rectangle is also
Include the quadrangle that square shape and fillet rectangle, rounded square etc. are rectangular.
[details of the embodiment of the disclosed invention]
Next, referring to Fig.1~Figure 14 illustrates the embodiment of the manufacturing method of the insulated electric conductor of the disclosure.Following attached
In figure, identical cross reference number is marked to same or equivalent part, does not repeat its explanation.
(embodiment 1)
[structure of insulated electric conductor]
Fig. 1 is the summary for indicating an example of the insulated electric conductor manufactured in the manufacturing method of the insulated electric conductor of present embodiment
Perspective view.Referring to Fig.1, insulated electric conductor 1 includes the insulating film 3 of conductor 2 with the outer peripheral surface for covering the conductor 2.
Conductor 2 is constituted such as the conductive material by copper, copper alloy.Conductor 2 have linear shape, have perpendicular to
The first conductor flat site 2A, the second conductor along its length in the section 1S on the direction of D1 comprising linear region is flat
The peripheral shape of the quadrangle of region 2B, third conductor flat site 2C and the 4th conductor flat site 2D.First conductor is flat
Region 2A and third conductor flat site 2C are parallel to each other.In addition, the second conductor flat site 2B and the 4th conductor flat site
2D is parallel to each other.The peripheral shape of above-mentioned quadrangle is square.
In addition, the first conductor that conductor 2 includes connection the first conductor flat site 2A and the second conductor flat site 2B turns
Angular zone 2R1, connection the second conductor flat site 2B and third conductor flat site 2C the second conductor corner area 2R2, connection
The third conductor corner area 2R of third conductor flat site 2C and the 4th conductor flat site 2D3, connection the 4th conductor it is flat
The 4th conductor corner area 2R of region 2D and the first conductor flat site 2A4。
Insulating film 3 is made of insulating material, covers the peripheral side of conductor 2.Constitute the insulating material of insulating film 3
E.g. include the material of polyimides, is preferably made of polyimides.Insulating film 3 containing polyimides, insulating properties and
Heat resistance is outstanding.Therefore, polyimides is suitable as constituting the material of insulating film 3.
In addition, insulating film 3 has in the section 1S on the direction perpendicular to the length direction D1 along conductor 2 and conductor
The peripheral shape of the corresponding square of 2 shape.Specifically, insulating film 3 includes corresponding with the first conductor flat site 2A
The first envelope flat site 3A, second envelope flat site 3B corresponding with the second conductor flat site 2B, with third conductor
The corresponding third envelope flat site 3C of flat site 2C, the 4th envelope flat site corresponding with the 4th conductor flat site 2D
3D.Also, insulating film 3 includes and the first conductor corner area 2R1Corresponding first envelope corner area 3R1And the second conductor
Corner area 2R2Corresponding second envelope corner area 3R2And third conductor corner area 2R3Corresponding third envelope corner regions
Domain 3R3With with the 4th conductor corner area 2R4Corresponding 4th envelope corner area 3R4.First envelope corner area 3R1Connection
First envelope flat site 3A and the second envelope flat site 3B.Second envelope corner area 3R2Connect the second envelope flat region
Domain 3B and third envelope flat site 3C.Third envelope corner area 3R3Connect third envelope flat site 3C and the 4th envelope
Flat site 3D.4th envelope corner area 3R4Connect the 4th envelope flat site 3D and the first envelope flat site 3A.
[structure of the manufacturing device of insulated electric conductor]
Next, illustrating the manufacturing device of the insulated electric conductor 1 of present embodiment referring to Fig. 2~Fig. 5.Fig. 2 is for illustrating
The block diagram of the manufacturing device 5 of insulated electric conductor 1.Fig. 3 is the summary for indicating the structure in insulating film light splitting shown in Fig. 2 investigation portion 20
Schematic diagram.Fig. 4 is indicated between the allocation position and insulated electric conductor 1 of the laser sensor in insulating film light splitting investigation portion 20
The summary stereogram of an example of relationship.Fig. 5 is the schematic diagram for indicating the structure of static capacity measurement portion 22 shown in Fig. 2.
Referring to Fig. 2, the manufacturing device 5 of insulated electric conductor 1 successively includes conductor preparing portion 10, envelope forming portion since upstream
16, inspection portion 18 and reeling end 24.
In conductor preparing portion 10, prepare above-mentioned conductor 2.Conductor preparing portion 10 includes the wire rod of the wire rods such as supply copper wires
Supply unit 12, by the wire forming supplied from wire rod supply unit 12 be intended shape conductor 2 forming section 14.Forming section 14 is matched
It sets in the downstream side of wire rod supply unit 12.Forming section 14 has the metal such as the mold of drawing processing (wire drawing) and adds
Work mold.
Envelope forming portion 16 is configured in the downstream side of forming section 14, which is ready in conductor preparing portion 10
The peripheral side of conductor 2 form the insulating film 3 that is made of insulating material.Envelope forming portion 16 for example, varnish supply
Portion, the varnish of resin of the supply comprising the raw material as insulating film 3；Varnish is applied to conductor 2 by apparatus for coating；And it burns
Freezing of a furnace heats the varnish being coated with, and forms polyimides envelope.
In the downstream side configuration inspection portion 18 of envelope forming portion 16.It is formed in envelope forming portion 16 and obtains insulating film 3
Insulated electric conductor 1, the investigation of formation state, other necessary characteristic (insulation characterisitics of insulating film 3 are carried out in inspection portion 18
Deng) investigation.Inspection portion 18 includes insulating film light splitting investigation portion 20 and static capacity measurement portion 22.Also it can be omitted direct capacitance
Measurement portion 22.In addition, static capacity measurement portion 22 is configured in the downstream side in insulating film light splitting investigation portion 20 in Fig. 2, but
This sequence can also be in turn.
Referring to Fig. 3 and Fig. 4, insulating film light splitting investigation portion 20 includes: the secondary laser of the first main laser sensor 30a and first
Sensor 32a is configured to opposite with the first envelope flat site 3A；The secondary laser sensing of second main laser sensor 30b and second
Device 32b is configured to opposite with the second envelope flat site 3B；Third main laser sensor 30c, is configured to flat with third envelope
Region 3C is opposite；And the 4th main laser sensor 30d, it is configured to opposite with the 4th envelope flat site 3D.
Referring to Fig. 4, in the present embodiment, the secondary laser sensor 32a of the first main laser sensor 30a and first, on edge
Configuration is in mutually the same position on the direction of the length direction D1 of conductor 2 (circumferentially in the face of line P1).In addition, second is main sharp
The secondary laser sensor 32b of optical sensor 30b and second, third main laser sensor 30c and the 4th main laser sensor 30d
Same configuration is in the circumferentially face of line P1.
Laser sensor 30a, 30b, 30c, 30d, 32a, 32b are respectively provided with projection and accepted light portion, and the projection and accepted light portion is to insulation
The light-projecting portion of laser is irradiated on electric wire 1, and the laser irradiated, reflected light of the reception from insulated electric conductor 1 acceptance part one
Constitute to body.In the front in projection and accepted light portion, it is configured with optical system, the optical system is by the laser aiming from light-projecting portion to absolutely
The regulation irradiation position of the insulating film 3 of edge electric wire 1, and the reflected light of self-insulating electric wire 1 is directed to acceptance part in the future.
Laser 40A is led from the projection and accepted light portion of the first main laser sensor 30a towards the first envelope flat site 3A and first
Body flat site 2A is radiated at the first position (main irradiation area 51) of the first envelope flat site 3A.Laser 42A is secondary from first
The projection and accepted light portion of laser sensor 32a is radiated at first towards the first envelope flat site 3A and the first conductor flat site 2A
The second position (secondary irradiation area 53) of envelope flat site 3A is irradiated.
Similarly, laser 40B from the projection and accepted light portion of the second main laser sensor 30b towards the second envelope flat site 3B and
Second conductor flat site 2B is irradiated to the third place (main irradiation area 52) of the second envelope flat site 3B.Laser 42B from
The projection and accepted light portion of second secondary laser sensor 32b is irradiated towards the second envelope flat site 3B and the second conductor flat site 2B
In the 4th position (secondary irradiation area 54) of the second envelope flat site 3B.
In turn, laser 40C is from the projection and accepted light portion of third main laser sensor 30c to third envelope flat site 3C and third
Conductor flat site 2C irradiation.Laser 40D is from the projection and accepted light portion of the 4th main laser sensor 30d to the 4th envelope flat site 3D
And the 4th conductor flat site 2D irradiation.
As shown in figure 3, each laser vertical irradiation irradiated from laser sensor 30a, 30b, 30c, 30d, 32a, 32b is right
The envelope flat site answered.
In addition, each respective projection and accepted light portion laser sensor 30a, 30b, 30c, 30d, 32a, 32b receive respectively come since
The reflected light of insulated electric conductor 1 corresponding to the laser that projection and accepted light portion projects.Above-mentioned each laser sensor 30a, 30b, 30c, 30d,
32a, 32b are connected to by wiring and are equipped with the personal computer of film thickness parsing application etc., are equipped with the film thickness such as parsing monitor
The film thickness resolver of detector etc..For convenience, about wiring and film thickness resolver illustration omitted.
Fig. 5 shows the structure of static capacity measurement portion 22.Static capacity measurement portion 22 include capacitance sensor 60, record and
The static capacity detector 68 of the value of the measured static capacity of display.Capacitance sensor 60 is protected including main electrode 62, first
Electrode 64A, the second guard electrode 64B and shell 66.Main electrode 62, the first guard electrode 64A and the second guard electrode 64B difference
Shape with the hollow tube-shape (such as hollow cylindrical) that can run through insulated electric conductor 1.Shell 66 have can accommodate main electricity
Pole 62, the first guard electrode 64A, the second guard electrode 64B and be connected to each electrode wiring shape.In the survey of static capacity
When amount, capacitance sensor 60 is usually impregnated in the liquid such as water (not shown).
The configuration of main electrode 62 is in the peripheral side of insulated electric conductor 1, so that insulated electric conductor 1 penetrates through inside it.Main electrode 62 via
Wiring is connect with static capacity detector 68.
From main electrode 62, the first guard electrode 64A is configured in upstream side.From main electrode 62, the second guard electrode 64B
Configuration is in downstream side.First guard electrode 64A and the second guard electrode 64B are set to mitigate the electric field of the end of main electrode 62
It concentrates, steadily measures the numerical value of the static capacity generated between insulated electric conductor 1 and main electrode 62.First guard electrode 64A and
Second guard electrode 64B is connected with each other via wiring.In addition, the first guard electrode 64A and the second guard electrode 64B are via wiring
It connect with static capacity detector 68 and aftermentioned reeling end 24, is protected in reeling end 24 and the first guard electrode 64A and second
It is grounded in path between electrode 64B.That is, the first guard electrode 64A and the second guard electrode 64B is grounding electrode.
Referring to Fig. 2, reeling end 24 is configured in the downstream side of static capacity measurement portion 22, which is used for inspection portion 18
The insulated electric conductor 1 of middle investigation is rolled onto bobbin, on spool.It is the overall picture of the manufacturing device 5 of insulated electric conductor 1 above.
[manufacturing method of insulated electric conductor]
Next, referring to Fig.1~Figure 13, the step of illustrating the manufacturing method of insulated electric conductor 1.Fig. 6 is to show insulated electric conductor 1
Manufacturing method the step of flow chart.Fig. 7 is the investigation for illustrating the formation state of the insulating film based on optical spectroscopy
The schematic diagram of situation.Fig. 8 is the schematic diagram for indicating an example of investigation in insulating film light splitting investigation portion 20.Fig. 9~
Figure 13 is the schematic cross sectional view for indicating an example of insulated electric conductor 1.
Implement the step of S10~S50 shown in fig. 6 in the manufacturing method of the insulated electric conductor 1 of present embodiment referring to Fig. 6
Suddenly.Specifically, including the steps that preparing conductor 2 (S10), forming the step of insulating film 3 (S20), investigated using optical spectroscopy
The step of the step of the step of formation state of insulating film 3 (S30), measurement static capacity (S40) and curling insulated electric conductor 1
(S50).In addition, the step of measurement static capacity (S40), can be omitted.In addition, investigating the formation of insulating film 3 by optical spectroscopy
The sequence of the step of the step of state (S30) and measurement static capacity (S40) also can be interchanged.It next it will be described for each step
Details.
[preparation of conductor]
Referring to Fig. 2 and Fig. 6, firstly, preparing the conductor 2 (S10) with above-mentioned shape in conductor preparing portion 10.It is specific and
Speech extracts the wire rod being maintained on wire rod supply unit 12 out from wire rod supply unit 12, passes through drawing processing shape in forming section 14
As regulation shape as shown in Figure 1.Shape perpendicular to the section of the length direction of wire rod is, for example, circle.Such as Fig. 1
It is shown, there is linear shape by the conductor 2 of forming section 14, there is the peripheral shape of square, the periphery shape of the square
Shape in the section 1S on the direction perpendicular to D1 along its length, the first conductor flat site 2A comprising linear region,
Second conductor flat site 2B, third conductor flat site 2C and the 4th conductor flat site 2D and each conductor flat site of connection
Conductor corner area 2R1、2R2、2R3、2R4。
[formation of insulating film]
Then, the conductor 2 formed in forming section 14 is transported to envelope forming portion 16 along the direction of arrow D2.In envelope
In forming portion 16, by covering the peripheral side of conductor 2 with insulating material, insulating film 3 is formed, to cover the periphery of conductor 2
Face (S20).In the present embodiment, the insulating material for constituting insulating film 3 is made of polyimides.
As described above, envelope forming portion 16 includes varnish modulating device, apparatus for coating and sintering furnace.Constituting insulating film
When 3 insulating material is made of polyimides, insulating film 3 is in the polyimides pre-polymerization containing the precursor as polyimides
Pass through conductor 2 in the varnish of object (polyamic acid), is coated with varnish on the surface of conductor 2, so that film is hardened shape by heating
At.
Specifically, insulating film 3 is formed by following steps, to cover the outer peripheral surface of conductor 2.Firstly, being formed in envelope
In the varnish modulating device in portion 16, modulation contains the clear of the polyimide preformed polymer (polyamic acid) of the precursor as polyimides
Paint.Then, conductor 2 passes through in varnish, and then takes out extra varnish in the coating die for passing through apparatus for coating by conductor 2,
The surface varnish coating of conductor 2 as a result, forms film on conductor 2.
Then, in sintering furnace, if the film of heating coating, promotes the amidation from polyamic acid to polyimides anti-
It answers.Since polyimides has thermosetting property, so making curing of coating by heating.In this way, being formed by as insulating material
The insulating film 3 that polyimides is constituted, to cover the face of the peripheral side of conductor 2.In addition, repeating the painting of above-mentioned varnish as needed
In the period of cloth and heating, thus, it is possible to form the insulating film 3 for wishing thickness.
As shown in Figure 1, the peripheral shape of the insulating film 3 formed in envelope forming portion 16 is perpendicular to along conductor 2
Length direction D1Direction on section 1S in, with square corresponding with the shape of conductor 2 peripheral shape.It is specific and
Speech, insulating film 3 with length direction D1In vertical section 1S, including the first quilt corresponding with the first conductor flat site 2A
Film flat site 3A, second envelope flat site 3B corresponding with the second conductor flat site 2B and third conductor flat site
2C corresponding third envelope flat site 3C and fourth envelope flat site 3D corresponding with the 4th conductor flat site 2D.This
Outside, insulating film 3 with length direction D1In vertical section 1S, comprising corresponding respectively to conductor corner area 2R1, 2R2,
2R3, 2R4Envelope corner area 3R1, 3R2, 3R3, 3R4。
[utilizing the investigation of the formation state of the insulating film 3 of optical spectroscopy]
The insulated electric conductor 1 that insulating film 3 is formd in envelope forming portion 16, along arrow D2Direction be sent to inspection
The insulating film in portion 18 is divided investigation portion 20.In insulating film light splitting investigation portion 20, optical spectroscopy investigation insulating film 3 is utilized
Formation state (S30).In the investigation of the formation state of the film using optical spectroscopy, with laser irradiation film, using by film
Surface reflection go out reflected light and reflected by the back side (being the interface of insulating film 3 Yu conductor 2 in the present embodiment)
Reflecting interference and the interference spectrum formed, the formation state of the waveform investigation film based on the interference spectrum.Such as it measures thin
The film thickness of film.
Referring to Fig. 7, in order to investigate the formation state of insulating film 3, firstly, laser light 40A is from the first main laser sensor
The projection and accepted light portion of 30a is irradiated towards the first envelope flat site 3A and the first conductor flat site 2A.Laser 40A is in insulating film
Interface (the first conductor flat site 2A on 3 surface (surface of the first envelope flat site 3A) and insulating film 3 and conductor 2
Surface) reflection.At this point, in envelope surface reflected light 44 (reflected light on the surface from insulating film 3) and interface reflected light
The deviation of phase, envelope surface reflected light 44 and boundary are generated between 45 (reflected lights at the interface from insulating film 3 and conductor 2)
Face reflected light 45 interferes.Utilize envelope surface reflected light 44 and boundary in the projection and accepted light portion of the first main laser sensor 30a
The interference spectrum of the interference of face reflected light 45 and formation, can calculate insulation quilt according to the refractive index of interference spectrum and insulating film 3
The film thickness d of film 3.In addition, measurement can not be normally carried out when the inclination etc. due to conductor 2 can not normally receive reflected light.It is tied
Fruit is able to detect the abnormal generation of the formation state of insulating film 3.In addition, insulating film 3 is preferably for laser 40A light
Transparent material on.
The laser irradiated from each laser sensor 30a, 30b, 30c, 30d, 32a, 32b is not particularly limited, such as can
Use the laser such as visible light, infrared light, ultraviolet light.
It is flat towards the first envelope is located in the step S30 of the formation state of investigation insulating film 3 referring to Fig. 3 and Fig. 4
The main irradiation area 51 of the first position of smooth region 3A irradiates laser 40A from the first main laser sensor 30a.In addition, towards position
Secondary irradiation area 53 in the second position of the first envelope flat site 3A irradiates laser from the first pair laser sensor 32a
42A.In addition to this, towards the main irradiation area 52 of the third place positioned at the second envelope flat site 3B, from the second main laser
Sensor 30b irradiates laser 40B.In addition, towards the secondary irradiation area 54 of the 4th position positioned at the second envelope flat site 3B,
Laser 42B is irradiated from the second pair laser sensor 32b.In turn, it towards third envelope flat site 3C, is sensed from third main laser
Device 30c irradiates laser 40C.In addition, irradiating laser from the 4th main laser sensor 30d towards the 4th envelope flat site 3D
40D。
Laser sensor 30a, 30b, 30c, 30d, 32a, 32b are received respectively from insulated electro corresponding with the laser of injection
The envelope surface reflected light and interface reflected light of line 1.Based on the envelope surface reflected light and interface reflecting interference received
The waveform of the interference spectrum of formation investigates the formation state of the insulating film 3 of position corresponding with each point of irradiation.In addition, working as boundary
When face reflected light cannot normally receive, the exception of the formation state of insulating film 3 is detected.
Passed through using the investigation of the formation state of the insulating film of optical spectroscopy and is carried out online.That is, not stopping supplying from wire rod
Portion 12 to reeling end 24 production line in the case where, carry out the investigation of the formation state of insulating film.In addition, utilizing optical spectroscopy
The investigation of the formation state of insulating film is carried out in a manner of not cutting off the non-demolition of insulated electric conductor 1.But it is needing to know more
, can also be with a part of clip insulated electric conductor 1 in the case where the situation in detailed section, and adjusted in more detail with cross-section observation etc.
It looks into.
Referring to Fig. 3 and Fig. 8~Figure 13, the case where illustrating the investigation of formation state of insulating film.It is shown in Fig. 3 exhausted
Edge electric wire 1 is to form the example of the insulating film 3 with uniform thickness in the periphery of conductor 2.Fig. 8~Figure 13 is indicated respectively
The schematic cross sectional view of an example of insulated electric conductor 1.
Firstly, being illustrated to each insulated electric conductor 1 of the formation state of investigation insulating film 3.Insulated electro shown in Fig. 3
In line 1, the relationship of conductor 2 and insulating film 3 is ideal.In insulated electric conductor 1 shown in Fig. 3, the center of gravity G of insulated electric conductor 11
With the center of gravity G of conductor 22Unanimously.In addition, the first envelope corner area 3R1, the first conductor corner area 2R1, center of gravity G1、G2, third
Conductor corner area 2R3And third envelope corner area 3R3It is arranged in first straight line.Equally, the second envelope corner area 3R2、
Second conductor corner area 2R2, center of gravity G1、G2, the 4th conductor corner area 2R4And the 4th envelope corner area 3R4It is arranged in
On two straight lines.First straight line and second straight line are intersected in center of gravity G1, G 2.When conductor 2 and insulating film 3 meet such relationship,
Inhibit the deviation of the film thickness of insulating film 3, insulated electric conductor 1 is whole to have stable insulating properties.
In contrast, in Fig. 8 and insulated electric conductor shown in Fig. 91, conductor 2 is with center of gravity G1、G2Centered on relative to insulation
Envelope 3 relatively rotates.In Fig. 8 and insulated electric conductor shown in Fig. 91, the thin part of film thickness is generated in insulating film 3.By
It is reduced in the thin local insulating properties of film thickness, the partial discharge starting voltage decline of insulated electric conductor 1.Therefore, it is necessary to accurately detect
State of the formation state of insulating film 3 for Fig. 8 and as shown in Figure 9.
In addition, in each insulated electric conductor 1 shown in Figure 10~Figure 13, the center of gravity G of insulated electric conductor 11With the G of conductor 22No
Unanimously.At this point, conductor 2 relatively makes a variation relative to insulating film 3, conductor 2 is relative to (deviation) X-direction partially of insulating film 3
Or any one of Z-direction.For example, conductor 2 is biased to the negative direction of X-axis, thickness t in Figure 101Less than t2.At this point, in thickness
Spend t1Position, the insulating properties of insulated electric conductor 1 reduces.In addition, conductor 2 is biased to X-axis relative to insulating film 3 in Figure 11
Positive direction, thickness t2Less than t1.At this point, in thickness t2Position, the insulating properties of insulated electric conductor 1 reduces.As a result, insulated electric conductor 1
Partial discharge starting voltage decline.
In addition, conductor 2 is biased to the negative direction of Z axis, thickness t in Figure 124Less than t3.At this point, in thickness t4Position, absolutely
The insulating properties of edge electric wire 1 reduces.In addition, conductor 2 is biased to the positive direction of Z axis, thickness t relative to insulating film 3 in Figure 133
Less than t4.At this point, in thickness t3Position, the insulating properties of insulated electric conductor 1 reduces.As a result, the partial discharge of insulated electric conductor 1 rises
The decline of beginning voltage.Therefore, it is necessary to accurately detect the state that the formation state of insulating film 3 is Figure 10~as shown in Figure 13.
In the step of investigation utilizes the formation state of the insulating film 3 of optical spectroscopy (S30), it is able to detect and Fig. 8 has occurred
~state as shown in Figure 13.Referring to Fig. 3, compares be based on from the secondary laser of the first main laser sensor 30a and first first
The laser of sensor 32a transmitting and the value of film thickness calculated, thereby, it is possible to know conductor 2 relative to 3 relative tilt of insulating film
The degree of (rotation).In addition, being only enough to understand journey of the conductor 2 relative to 3 relative tilt of insulating film by above-mentioned comparison result
Degree, but by further plus comparing based on emitting from the pair laser sensor 32b of the second main laser sensor 30b and second
Laser and the value of film thickness that calculates as a result, it is possible to the relative tilt (rotation for more reliably knowing conductor 2 relative to insulating film 3
Turn) degree.It is therefore preferable that insulating film light splitting investigation portion 20 has the second secondary laser sensor 32b.
In addition, interface reflected light 45 is reflected to sometimes when conductor 2 is larger relative to the relative tilt of insulating film 3
The non-detectable direction in projection and accepted light portion of the laser sensors such as the first main laser sensor 30a.At this point, even if cannot be correct
The value of film thickness, is also able to detect that the exception for producing and not detecting interface reflected light 45, thus detect conductor 2 relative to
The relative tilt of insulating film 3 is larger.
In the case where the average film thickness of known insulating film 3, by comparing the average film thickness and based on main sharp from first
The laser of optical sensor 30a outgoing and the film thickness that calculates, are able to detect as shown in Figure 12 or Figure 13, conductor 2 is in Z-direction
Deviation.But even the case where not knowing the average film thickness of insulating film 3, it is based on sensing from the first main laser by comparing
The film thickness of the optical oomputing of device 30a outgoing and the film thickness calculated based on the laser being emitted from third main laser sensor 30c, can
Detection is as shown in Figure 12 or Figure 13, deviation of the conductor 2 in Z-direction.It is therefore preferable that insulating film light splitting investigation portion 20 has
Third main laser sensor 30c.
Equally, it in the case where the average film thickness of known insulating film 3, by comparing the average film thickness and is based on from second
The laser of main laser sensor 30b outgoing and the film thickness that calculates, are able to detect as shown in Figure 10 or Figure 11, conductor 2 is in X-axis side
To deviation.But even the case where not knowing the average film thickness of insulating film 3, it is based on by comparing from the second main laser
The film thickness of the optical oomputing of sensor 30b outgoing and the film thickness calculated based on the laser being emitted from the 4th main laser sensor 30d,
It is able to detect as shown in Figure 10 or Figure 11, deviation of the conductor 2 in X-direction.It is therefore preferable that insulating film is divided investigation portion 20
With the 4th main laser sensor 30d.
In this way, the formation state of investigation insulating film 3.It is that the formation state of insulating film 3 has been investigated as a result, for inspection
Measuring insulated electric conductor 1, there are parts abnormal as Fig. 8~Figure 13, are directly marked on insulated electric conductor 1, or as table
Show the data of abnormality detection position and records.
[measurement of static capacity]
In this way, the insulated electric conductor 1 of the formation state of insulating film 3 has been investigated in insulating film light splitting investigation portion 20, into
One step is along arrow D2Direction be sent to static capacity measurement portion 22.In static capacity measurement portion 22, insulated electric conductor 1 is measured
Conductor 2 and main electrode 62 (Fig. 5) between static capacity (S40).Based on the static capacity and the insulation quilt in advance investigated
The relationship of the film thickness of film 3 exports the film thickness of insulating film 3.Here derived film thickness is range corresponding with main electrode 62
Average film thickness.That is, finding out the average film thickness within the scope of the width w of main electrode 62.In addition, passing through measurement insulated electric conductor 1 and master
Static capacity between electrode 62 merges the insulation characterisitics such as measurement dielectric constant.Therefore, film thickness and insulating film can be evaluated together
3 insulation characterisitic can produce the more stable insulated electric conductor 1 of insulation characterisitic.
The measurement of static capacity between insulated electric conductor 1 and main electrode 62 is including above-mentioned capacitance sensor 60 and electrostatic
It is carried out in the static capacity measurement portion 22 of capacity check device 68.Measurement about static capacity is carried out also by online.
[batching]
As described above, being adjusted in the inspection portion 18 for including insulating film light splitting investigation portion 20 and static capacity measurement portion 22
The insulated electric conductor 1 looked into, along arrow D2Direction be sent to reeling end 24.In reeling end 24, the use of insulated electric conductor 1 bobbin,
Spool batches (S50).The insulated electric conductor 1 batched in reeling end 24 is sent to next process, or as product turnout.It checks
Detect that the part of the formation abnormal state of insulating film 3 is discarded in portion 18, or the shape of abnormality detection position is marked
State shipment.Furthermore, it desired to which product more than certain length, is not allow in the presence of unusual part, insulated electric conductor 1 is all
It is discarded.
It is a series of process of the manufacturing method of the insulated electric conductor 1 of present embodiment above.In addition, in above-mentioned embodiment party
In formula, illustrate conductor 2 and insulating film 3 perpendicular to D along its length1Direction on the peripheral shape of section 1S be
The example of the insulated electric conductor 1 of square, but the shape of conductor 2 and insulating film 3 is without being limited thereto.For example, conductor 2 and insulating film
3 perpendicular to D along its length1Direction on the peripheral shape of section 1S be also possible to rectangle, fillet oblong-shaped
Shape.
In the above-described embodiment, the sensor as the detection for carrying out static capacity, using capacitance sensor 60,
But the device for detecting static capacity is not particularly limited, can be using other devices in order to detect static capacity.
In addition, also can be omitted third main laser sensor in the figure in insulating film light splitting investigation portion 20 shown in Fig. 3
Either one or two of 30c and the 4th main laser sensor 30d.The first pair laser sensor 32a and second can also be omitted
Any one of secondary laser sensor 32b.Even if being omitted, it can also achieve the purpose that invention.
On the contrary, other laser sensors other than 6 laser sensors shown in Fig. 3 can also be added.Swashed by additional
Optical sensor is able to carry out the management of the formation state of more detailed insulating film 3.
In addition, in the above-described embodiment, enumerated using the light-projecting portion with light projector laser and receive reflected light by
The example of the laser sensor in the projection and accepted light portion that light portion is integrally formed, but laser sensor is not limited to such structure.It throws
Light-projecting portion and acceptance part can also be respectively set without integration in light portion and acceptance part.In addition, in the above-described embodiment, swashing
The light angular illumination vertical from the surface relative to each envelope flat site, but surface of the laser relative to envelope flat site
The angle of irradiation is not particularly limited.Light receiving element is configured by the position on the direction of travel of reflected light, it can be appropriate
Ground carries out the irradiation of laser and the reception of reflected light.But miniaturization is to be able to, it is preferable to use laser sensing as described above
Device.
(embodiment 2)
Then, the embodiment 2 as other embodiments is illustrated.Figure 14 is to indicate insulating film light splitting investigation
Relationship between the allocation position and insulated electric conductor 1 of laser sensor 30a, 30b, 30C, 30d, 32a, 32b in portion 20 it is another
The summary stereogram of an example.Compared with Fig. 4, in Figure 14, unlike embodiment 1, the first pair laser sensor 32a and
Second pair laser sensor 32b is configured in the circumferentially face of line P2.As a result, main irradiation area 51 (or main irradiation area 52) with
Secondary irradiation area 53 (or secondary irradiation area 54) is in length direction D1In different positions, main irradiation area is equivalent to for upper configuration
The first position of the laser irradiation circumferentially configured in the face of line P1, secondary irradiation area is equivalent to matches in the circumferentially face of line P2
The first position for the laser irradiation set.In addition to this, as embodiment 2 with embodiment 1 is.
Configuration in this way, the freedom degree of the configuration of main laser sensor 30a, 30b and secondary laser sensor 32a, 32b
It improves.
In this way, being capable of providing and manufacturing according to the manufacturing method of the insulated electric conductor of above embodiment 1 and embodiment 2
When insulated electric conductor containing the conductor with flat site, the manufacture of the insulated electric conductor of the formation state of insulating film is suitably managed
Method.
It should be understood that embodiment of the disclosure is all exemplary in all respects, not all right and wrong in any way
It is restrictive.The not above-mentioned meaning of the scope of the present invention, by Claims scope represented by, include and claim
The meaning of the range equalization of book and whole changes in range.
Claims (10)
1. a kind of manufacturing method of insulated electric conductor characterized by comprising
Preparation there is the step of conductor of linear shape, the conductor in the peripheral shape perpendicular to the section of length direction,
Including for linear region the first conductor flat site and the second conductor flat site and connection first conductor it is flat
The first conductor corner area in region and the second conductor flat site；
By covering the peripheral side of the conductor with insulating material, to be formed on the conductor by the insulating material
The step of insulating film of composition, the insulating film is perpendicular to the section on the direction of the length direction of the conductor
In peripheral shape, have respectively with the first conductor flat site, the second conductor flat site and first conductor
The corresponding first envelope flat site of corner area, the second envelope flat site and the first envelope corner area；And
The step of investigating the formation state of the insulating film,
In the step of investigating the formation state of the insulating film, the first position of Xiang Suoshu the first envelope flat site and
The second position irradiation laser separated in the circumferential direction of the insulating film with the first position, and it is flat to second envelope
The third place in region irradiates laser, and the reflected light, that is, envelope surface on the surface based on the insulating film from the light is anti-
Light and the reflected light i.e. interface reflected light from the insulating film Yu the interface of the conductor are penetrated, the insulating film is investigated
Formation state.
2. the manufacturing method of insulated electric conductor according to claim 1, which is characterized in that
In the step of investigating the formation state of the insulating film, also to the second envelope flat site in the insulation
The 4th position irradiation laser separated in the circumferential direction of envelope with the third place, based on the envelope surface reflected light and described
Interface reflected light investigates the formation state of the insulating film.
3. the manufacturing method of insulated electric conductor according to claim 1 or 2, which is characterized in that
The conductor has the peripheral shape of polygon in the section of the length direction perpendicular to the conductor,
The insulating film has in perpendicular to the section on the direction of the length direction of the conductor along the conductor
The peripheral shape of the polygon of peripheral shape.
4. the manufacturing method of described in any item insulated electric conductors according to claim 1~3, which is characterized in that
The conductor is the shape of quadrangle, the peripheral shape in the section of the length direction perpendicular to the conductor
In, the also third conductor flat site comprising linear region and the 4th conductor flat site, connection second conductor is flat
Region and the second conductor corner area of the third conductor flat site connect the third conductor flat site and described the
The third conductor corner area and connection the 4th conductor flat site of four conductor flat sites and first conductor are flat
The 4th conductor corner area in smooth region,
The insulating film is the shape of quadrangle, perpendicular to the section on the direction of the length direction of the conductor
In the peripheral shape, also comprising respectively with the third conductor flat site and the 4th conductor flat site and described
Second conductor corner area, the third conductor corner area and the corresponding third envelope of the 4th conductor corner area are flat
Smooth region and the 4th envelope flat site and the second envelope corner area, third envelope corner area and the 4th envelope corner regions
Domain,
In the step of investigating the formation state of the insulating film, respectively to the third envelope flat site and the described 4th
Envelope flat site irradiates laser, based on the envelope surface reflected light and the investigation of the insulating film and the interface reflected light
The formation state of the insulating film.
5. the manufacturing method of insulated electric conductor according to claim 4, which is characterized in that
The conductor has rectangular peripheral shape in the section of the length direction perpendicular to the conductor,
The insulating film has in perpendicular to the section on the direction of the length direction of the conductor along the conductor
The rectangular peripheral shape of peripheral shape.
6. the manufacturing method of described in any item insulated electric conductors according to claim 1~5, which is characterized in that
In the step of investigating the formation state of the insulating film, the static capacity of the insulated electric conductor is also detected, based on pre-
The film thickness for the insulating film first investigated out and the relationship of the static capacity further investigate the formation of the insulating film
State.
7. the manufacturing method of described in any item insulated electric conductors according to claim 1~6, which is characterized in that
The insulating film includes polyimides.
8. the manufacturing method of described in any item insulated electric conductors according to claim 1~7, which is characterized in that
The step of investigating the formation state of the insulating film on line by carrying out.
9. the manufacturing method of described in any item insulated electric conductors according to claim 1~8, which is characterized in that
The first position and the second position are configured at different from each other on the direction along the length direction of the conductor
Position.
10. a kind of investigation method of insulated electric conductor, which is characterized in that
Insulated electric conductor has conductor and insulating film, and the conductor has linear shape, and the insulating film passes through insulating properties
Material covers the peripheral side of the conductor,
The conductor is in the peripheral shape perpendicular to the section of length direction, the first conductor flat region with linear region
Domain and the second conductor flat site, and connection the first conductor flat site are led with the first of the second conductor flat site
Body corner area,
The insulating film has and divides in the peripheral shape perpendicular to the section on the direction of the length direction of the conductor
Not corresponding with the first conductor flat site, the second conductor flat site and the first conductor corner area
One envelope flat site, the second envelope flat site and the first envelope corner area,
Divide to the first position of the first envelope flat site and with the first position in the circumferential direction of the insulating film
The second position irradiation laser opened, and laser is irradiated to the third place of the second envelope flat site, based on from described
The reflected light on the surface of the insulating film of light, that is, envelope surface reflected light and from the insulating film and the conductor
Interface reflected light, that is, interface reflected light, investigate the formation state of the insulating film.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017053629 | 2017-03-17 | ||
| JP2017-053629 | 2017-03-17 | ||
| PCT/JP2018/007398 WO2018168452A1 (en) | 2017-03-17 | 2018-02-28 | Insulated electric wire production method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110431644A true CN110431644A (en) | 2019-11-08 |
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| CN201880018468.XA Pending CN110431644A (en) | 2017-03-17 | 2018-02-28 | The manufacturing method of insulated electric conductor |
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| JP (1) | JP7046914B2 (en) |
| CN (1) | CN110431644A (en) |
| WO (1) | WO2018168452A1 (en) |
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Citations (6)
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| US5485082A (en) * | 1990-04-11 | 1996-01-16 | Micro-Epsilon Messtechnik Gmbh & Co. Kg | Method of calibrating a thickness measuring device and device for measuring or monitoring the thickness of layers, tapes, foils, and the like |
| US6120833A (en) * | 1996-08-12 | 2000-09-19 | Sollac | Method and device for measuring the thickness of an insulating coating |
| TW200506319A (en) * | 2000-11-08 | 2005-02-16 | Ulvac Inc | Film-thickness measuring method and apparatus |
| DE102008026348A1 (en) * | 2008-05-31 | 2009-12-03 | Koenig & Bauer Aktiengesellschaft | Method for recognizing sheet incoming into pusher machine on presence of double or multiple sheets, involves determining thickness of sheet incoming into pusher machine by groped working sensor |
| WO2015002278A1 (en) * | 2013-07-03 | 2015-01-08 | ダイキン工業株式会社 | Insulated electrical wire and method for manufacturing same |
| CN105612402A (en) * | 2013-10-11 | 2016-05-25 | 古河电气工业株式会社 | Coating thickness inspection method and coating thickness inspection device |
-
2018
- 2018-02-28 JP JP2019505851A patent/JP7046914B2/en active Active
- 2018-02-28 CN CN201880018468.XA patent/CN110431644A/en active Pending
- 2018-02-28 WO PCT/JP2018/007398 patent/WO2018168452A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5485082A (en) * | 1990-04-11 | 1996-01-16 | Micro-Epsilon Messtechnik Gmbh & Co. Kg | Method of calibrating a thickness measuring device and device for measuring or monitoring the thickness of layers, tapes, foils, and the like |
| US6120833A (en) * | 1996-08-12 | 2000-09-19 | Sollac | Method and device for measuring the thickness of an insulating coating |
| TW200506319A (en) * | 2000-11-08 | 2005-02-16 | Ulvac Inc | Film-thickness measuring method and apparatus |
| DE102008026348A1 (en) * | 2008-05-31 | 2009-12-03 | Koenig & Bauer Aktiengesellschaft | Method for recognizing sheet incoming into pusher machine on presence of double or multiple sheets, involves determining thickness of sheet incoming into pusher machine by groped working sensor |
| WO2015002278A1 (en) * | 2013-07-03 | 2015-01-08 | ダイキン工業株式会社 | Insulated electrical wire and method for manufacturing same |
| CN105612402A (en) * | 2013-10-11 | 2016-05-25 | 古河电气工业株式会社 | Coating thickness inspection method and coating thickness inspection device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018168452A1 (en) | 2018-09-20 |
| JPWO2018168452A1 (en) | 2020-02-13 |
| JP7046914B2 (en) | 2022-04-04 |
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