JP2009148053A - Insulating cover stripper of insulating cover covered cable, and soldering method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an insulating cover stripper of an insulating cover covered cable, which can inexpensively improve bonding reliability with the other component, and to provide a soldering method. <P>SOLUTION: An insulating cover stripping device includes a flux storage tank 1 storing flux 11 inside and a stripper 2 stripping an insulating cover 31 at a tip of the insulating cover covered cable 3 immersed in the flux storage tank 1. The stripper 2 has a fixed member 4 fixing two points of the cable immersed in the flux storage tank 1, three blades 22 rotating with an axial center of the insulating cover covered cable 3 immersed in the flux storage tank 1 as a center and a driving part 21 rotating the blades 22. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a technique in which an insulating coating at a tip end portion of an insulating coating-coated electric wire whose core wire is covered with at least one layer of insulating coating is peeled off so that the core wire is exposed and joined to another component by soldering.

  Until now, copper wire was mainly selected as the electric wire used for motors. However, with the recent increase in copper wires and the reduction in weight of motors, the use of wires other than copper wires has been considered.

  Among such electric wires other than copper wires, there are some such as aluminum and iron that are very easily oxidized and form a strong oxide film once oxidized. The oxide film formed on this electric wire has poor wettability with solder. For this reason, when joining the electric wire in which the oxide film was formed, the terminal, and the lead wire by soldering, the problem that joining strength became weak occurred.

  Therefore, when joining such an electric wire on which such an oxide film is easily formed and other parts, a chemical having a reducing action such as flux is applied to remove the oxide film. However, in order to remove a strong oxide film, it is necessary to use a flux having a reducing power that is high enough to handle the strong oxide film.

  Here, the flow of soldering performed by removing the conventional oxide film will be described. FIG. 15 is a flowchart showing a conventional wire soldering process. FIG. 16 is a diagram showing a state in which another component 6 is connected to the insulating coating-coated electric wire 3 from which the insulating coating 31 has been peeled off in the conventional soldering flow, and FIG. 17 shows the insulating coating-coated electric wire 3 and others in the conventional soldering flow. The figure which shows the state which immersed the component 6 in the tank in which the flux 11 is stored, FIG. 18 is the figure which shows the state which dries or heats the flux 11 adhering to the insulation coating electric wire 3 and the other components 6 in the conventional soldering flow. FIG. 19 is a view showing a state in which the insulation coating coated electric wire 3 and the other components 6 to which the flux 11 is attached in the conventional soldering flow are immersed in a tank in which the solder 12 is stored.

  Conventionally, when the other component 6 is joined to the insulating coating-coated electric wire 3 that is easily oxidized by soldering, first, the insulating coating 31 is peeled off (step S11), and the other component 6 is connected as shown in FIG. (Step S12). Then, as shown in FIG. 17, after the insulation coating coated electric wire 3 and the other component 6 are both immersed in a tank in which the flux 11 is stored (step S <b> 13), the flux 11 is dried or heated as shown in FIG. 18. (Step S14), the oxide film was removed by activating the flux 11. With the oxide film removed in this manner, soldering was performed as shown in FIG. 19 (step S15).

  On the other hand, when the oxide film is removed by such a conventional method, since the electric wire from which the insulating film is peeled is oxidized in an oxygen atmosphere, it is necessary to use a flux having a high reducing power. This flux having a high reducing power has a property of promoting corrosion of the electric wire itself. For this reason, in order to prevent corrosion of the electric wire itself, it is necessary to clean the flux with a water-based or alcohol-based cleaning agent after completing the joining with other parts. Therefore, particularly in the case of mass production, it has been a cause of cost increase.

Therefore, for such problems, a technique for removing an oxide film by ultrasonic waves for joining aluminum wires (Patent Document 1) and a technique for preventing or removing oxidation using a reducing gas (Patent Document 2). Moreover, the technique (patent document 3) etc. which join by using an ultrasonic wave and zinc-based solder together are proposed.
Japanese Patent Laid-Open No. 2-54947 JP 2004-323977 A Japanese Patent Laid-Open No. 9-239531

  However, as in the invention described in Patent Document 1, in joining using an ultrasonic device or the like, it is necessary to introduce a large facility, which causes a problem of an increase in cost and an increase in work man-hours. In addition, there is a problem that the solder temperature rises due to ultrasonic vibration and the solder is likely to be scattered. For this reason, the delicate control which considered also about the solder temperature is needed, and the problem that control becomes complicated also arises.

In addition, as in the invention described in Patent Document 2, in the method of removing the oxide film using the reducing gas, it is necessary to always keep the working atmosphere in a high-temperature reducing gas atmosphere. Therefore, there arises a problem that the amount of energy used such as electric power and gas increases.
Furthermore, as in the invention described in Patent Document 3, in the method of using an ultrasonic device and using a zinc-based solder, it is necessary to introduce large-scale equipment, which causes a problem of an increase in cost and an increase in work man-hours. In addition, there is a problem that the solder temperature rises due to ultrasonic vibration and the solder is likely to be scattered. For this reason, the delicate control which considered also about the solder temperature is needed, and the problem that control becomes complicated also arises. If zinc-based solder is used, the working temperature must be set high, and workability is poor and wettability is also poor. For this reason, if the oxide film on the surface of the core wire (particularly aluminum wire) is not completely removed, there also arises a problem that the solder does not get wet.

  The present invention solves the above-described problems, does not require large-scale equipment, and can provide high insulation reliability with other parts at a low cost, And it aims at providing the soldering method.

  The invention according to claim 1 is an insulating film peeling apparatus used when peeling an insulating film as a pretreatment for soldering an insulating film coated electric wire, and stores a flux therein. And a stripper for stripping the insulating coating at the tip of the insulating coating coated electric wire immersed in the flux storage tank and having the core wire covered with at least one insulating coating so that the core wire is exposed. It is characterized by providing.

  The invention described in claim 2 is characterized in that the peeling device includes a support member that supports at least two points of the electric wire immersed in the flux storage tank so as to pass through the insulating coating-coated electric wire.

  The invention described in claim 3 is characterized in that the peeling device includes a blade that rotates around an axis of an insulating coating coated electric wire immersed in the flux storage tank.

  The invention described in claim 4 is characterized in that the peeling device includes a drive unit that rotates the blade.

The invention according to claim 5 is a flux circulation part that is connected to the flux storage tank and removes the debris of the insulating coating and the deteriorated product of the flux that have been peeled off from the insulating coating-coated electric wire.
It is further provided with the feature.

  The invention described in claim 6 further includes an electric wire depth adjuster that changes a position at which the insulating coating of the insulating coating-coated electric wire is peeled off.

  The invention described in claim 7 is characterized in that the core wire of the insulating coating-coated electric wire is made of aluminum.

  The invention according to claim 8 is characterized in that the solder is non-lead solder.

  The invention according to claim 9 is a first flux immersing step of immersing the tip of the insulating coating-coated electric wire whose core wire is covered with at least one insulating coating in a flux storage tank for storing flux; A stripping step for stripping the insulating coating at the tip of the insulating coating coated electric wire immersed in the flux storage tank so that the core wire is exposed, and an insulating coating covering the stripping of the insulating coating at the tip in the stripping step Taking out the electric wire from the flux storage tank and drying the flux adhering to the core wire, and connecting the part with the flux adhering to the part where the insulating film of the insulating film-coated electric wire is peeled off and connecting to other parts And a soldering step of soldering a connection portion between the insulating coating-coated electric wire and other parts.

  The invention according to claim 10 further includes a second flux immersion step of immersing a connection portion with the other part of the insulating coating-coated electric wire in the flux storage tank after the connection step. And

  The invention according to claim 11 is characterized in that the core wire of the insulating coating-coated electric wire is made of aluminum.

  The invention described in claim 12 is characterized in that the solder is a lead-free solder.

  According to the first aspect of the present invention, since the insulation coating at the tip of the insulation coating coated electric wire immersed in the flux storage tank is provided with a peeling device for peeling off the core wire, a large-scale facility is provided. It is not necessary, and the reliability of joining with other parts can be increased at low cost. That is, the electric wire and other parts can be joined in a state where the oxidation of the core wire is suppressed. Further, since the flux can be applied to the electric wire in a state where the oxide film is not formed, it is possible to prevent corrosion of the electric wire after joining without using a flux having a high reducing power.

  According to the second aspect of the present invention, since the peeling device includes a support member that supports at least two points of the electric wire immersed in the flux storage tank, blurring during the peeling of the insulating coating of the insulating coating-coated electric wire is prevented. In addition, the insulating coating can be peeled with high accuracy.

  According to the invention described in claim 3, since the peeling device includes the blade that rotates around the axis of the insulating coating coated electric wire immersed in the flux storage tank, the insulating coating can be peeled with high accuracy. .

  According to invention of Claim 4, since a peeling device is equipped with the drive part which rotates a blade, it can peel an insulating film easily.

According to the fifth aspect of the present invention, since the flux circulation part that removes the debris of the insulation coating and the deteriorated flux from the insulation coating-coated electric wire is provided, the deterioration of the flux stored in the flux storage tank is provided. Can be prevented.

  According to the invention described in claim 6, since the electric wire depth adjuster for changing the position where the insulating coating of the insulating coating-coated electric wire is peeled is further provided, the insulating coating can be easily performed without changing the position of the peeling device. The position of the covered electric wire can be adjusted.

  According to the ninth aspect of the present invention, since the insulating coating at the tip of the insulating coating-coated electric wire immersed in the flux storage tank is provided with a peeling step so that the core wire is exposed, large-scale equipment is provided. Therefore, it is possible to increase the joining reliability with other parts at low cost. That is, the electric wire and other parts can be joined in a state where the oxidation of the core wire is suppressed. Further, since the flux can be applied to the electric wire in a state where the oxide film is not formed, it is possible to prevent corrosion of the electric wire after joining without using a flux having a high reducing power.

  According to the invention described in claim 10, since the second flux immersion step of immersing the connection portion with the other part of the insulating coating coated electric wire in the flux storage tank after the connection step, Oxidation can be prevented and bonding reliability with other parts can be further increased.

  According to the seventh and eleventh aspects of the present invention, a strong oxide film can be easily formed in an oxygen atmosphere as the core wire of the insulating film-coated electric wire. Once the oxide film is formed, the wettability of the solder is increased. Even if a material made of aluminum that deteriorates is used, the wettability of the solder can be improved.

  According to the eighth and twelfth aspects of the invention, since the solder is a lead-free solder, it is possible to avoid the adverse effects of lead on the human body.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is an overall schematic view of an insulating film peeling apparatus according to an embodiment of the present invention.

  The insulating coating film peeling apparatus is used as a pretreatment before soldering and bonding between the insulating coating coated electric wire 3 and other components (terminals, lead wires, etc.). This insulation coating stripping device strips the insulation coating 31 at the tip of the insulation coating coated electric wire 3 so that the core wire 32 is exposed in a state where no oxide coating is formed on the core wire 32.

  In this embodiment, a flux 11 having a solid content of 15%, a viscosity of 4 mPa, and a halogen content of 0.08 ± 0.02% is used. However, the insulating film-covered electric wire 3 and the flux 11 are not limited to this, and those made of other materials may be used. In addition, as the flux 11, you may use what is active at high temperature (more than the temperature reached of the flux 11 application part at the time of motor use), or low temperature (less than the temperature of the flux 11 application part at the time of motor use) You may use what activates. However, the flux 11 that is activated at a high temperature is more preferable because it does not activate even when the motor is used, and therefore there is less risk of corroding the core wire 32 later.

Further, as the core wire 32 of the insulating coating-coated electric wire 3, when using a material that easily forms an oxide film in the air, particularly a material that easily oxidizes in the air, the effect of using this insulating coating peeling device is obtained. be able to. An oxide film is easily formed in ascending order of main metals Li, K, Ca, Na, Mg, Al, Zn, Fe, Ni, Sn, Pb, (H), Cu, Hg, Ag, Pt, and Au. It is generally known that the material is easily oxidized. In particular, an oxide film is likely to be formed for Li, K, Ca, Na, Mg, Al, Zn, Fe, Ni, Sn, and Pb, and may be easily oxidized for Li, K, Ca, Na, Mg, and Al. Generally known. Therefore, in this embodiment, in order to obtain the effect of this insulating coating film peeling apparatus, the core wire 32 made of aluminum is used.

  This insulating film peeling apparatus includes a flux storage tank 1 that stores flux 11 therein, and a peeling device 2 that peels the insulating film 31 at the tip of the insulating film-coated electric wire 3 immersed in the flux storage tank 1. .

  2 and 3 are cross-sectional views showing a cross section of the insulating coating-coated electric wire 3. Here, the insulation coating-covered electric wire 3 may have a configuration in which the core wire 32 is covered with a single layer of insulation coating 31 as shown in FIG. 2, and as shown in FIG. 3, two layers of insulation coating 31a and 31b are used. The structure by which the core wire 32 is covered may be sufficient. Furthermore, the structure covered with the multilayer insulation film of three or more layers may be sufficient. When the insulating coating 31 is a multilayer, the breakdown voltage can be improved, which is advantageous for further miniaturization. Further, as the insulating coating-coated electric wire 3, a wire in which the core wire 32 is covered with at least one insulating coating 31 is used. Therefore, when the insulating coating 31 of the insulating coating-coated electric wire 3 is not peeled off, an oxide coating is formed on the core wire 32. It can be in a state where it is not formed. In this embodiment, as the insulating coating-coated electric wire 3, an aluminum core wire 32 in which two layers of insulating coating 31 made of polyester and nylon are coated (so-called PEWN electric wire) is used. However, the insulating film-covered electric wire 3 and the flux 11 are not limited to this, and those made of other materials may be used. The material of the insulating coating 31 may be any of urethane, polyester, and polyimide.

  As described above, since the insulating coating 31 at the tip of the insulating coating-coated electric wire 3 immersed in the flux storage tank 1 is peeled off, no large-scale equipment is required, and the bonding reliability with other components is high at low cost. can do. That is, the insulation coating covered electric wire 3 and other components can be joined in a state in which the oxidation of the core wire 32 is suppressed. Moreover, since the flux 11 can be applied to the insulating coated wire 3 in a state where no oxide film is formed, the flux 32 having a high reducing power is not used, and the core wire 32 of the insulating coated wire 3 after bonding is used. Corrosion can be prevented.

  The flux storage tank 1 is connected to the flux circulation device 60. The flux circulation device 60 includes a pump 61 that draws the flux 11 stored in the flux storage tank 1, a filter 62 that filters impurities in the flux 11, and a pipe 63 that connects the flux storage tank 1 and the flux circulation device 60. With. Thereby, the peeled insulating coating 31 mixed in the flux reservoir 1 can be removed. For this reason, it can prevent that the characteristic of the flux 11 in the flux storage tank 1 deteriorates, and can use the flux 11 for a long period of time.

  Moreover, the peeling device 2 peels the insulating coating 31 so that the core wire 32 of the insulating coating coated electric wire 3 is exposed. The peeling device 2 includes a support member 4 that supports two points of the electric wire immersed in the flux storage tank 1 so as to pass through the insulating film-coated electric wire 3 and an insulating film-coated electric wire 3 immersed in the flux storage tank 1. Three blades 22 that rotate about an axis are provided, and a drive unit 21 that rotates the blades 22.

  FIG. 4 is a perspective view showing a part of the blade 22 and the drive unit 21 in a state where the insulating coating 31 of the insulating coating-coated electric wire 3 is peeled off.

The drive unit 21 includes a motor 23, a transmission shaft 24 that transmits rotation of the motor 23, and a transmission shaft 24.
Are provided with a gear 25 that transmits the rotation, a transmission belt 26, a gear 27, and a rotating plate 28 that rotates the blade 22 in accordance with the rotation of the gear 27. The rotating plate 28 rotates when the rotation of the motor 23 is transmitted through the transmission shaft 24, the gear 25, the transmission belt 26 and the gear 27.

  Further, the three blades 22 are arranged concentrically at the center of the rotating plate 28. Then, the insulating coating covered electric wire 3 is passed through the center of the three blades 22. In such a state, the blade 22 rotates around the insulating coating covered electric wire 3 by the rotation of the rotating plate 28. Thereby, the insulating coating 31 is peeled off. In addition, the depth in the flux storage tank 1 is adjusted by the electric wire depth adjuster 5 of the insulating coating-coated electric wire 3. By adjusting the wire depth adjuster 5, it is possible to peel only the portion of the insulating coating 31 that is desired to be stripped in the insulating coating-coated electric wire 3. Further, the electric wire depth adjuster 5 can easily adjust the position of the insulating coating covered electric wire 3 without changing the position of the peeling device 2.

  FIG. 5 is a perspective view showing the support portion 41 constituting the support member 4.

  The support member 4 has two support portions 41. The two support portions 41 are fixed at a fixed position in the flux storage tank 1 so as to be at the same position in plan view. The support portion 41 is formed with a passage hole 42 through which the insulating coating-coated electric wire 3 passes. The insulating coating covered electric wire 3 is fixed in the flux storage tank 1 by passing through the passage hole 42. For this reason, even during the peeling operation of the insulating coating 31, the insulating coating covered electric wire 3 can be fixed, and the insulating coating 31 can be peeled with high accuracy. If the diameter of the passage hole 42 is made larger by about 0.01 mm than the diameter of the insulating coating-coated electric wire 3 (0.62 mm in this embodiment), the passage of the insulating coating-coated electric wire 3 will not be obstructed, and the insulation It is possible to prevent blurring of the insulating coating-coated electric wire 3 during the peeling operation of the insulating coating 31 of the coating-coated electric wire 3. As a result, the insulating coating 31 can be peeled more accurately, which is more preferable. By providing such a support part 41, even if the rotational speed of the blade 22 which comprises the peeling device 2 rises, the problem of being cut to the core wire 32 and being thinly disconnected can be avoided.

  Next, processes from peeling of the insulating coating 31 of the insulating coating-coated electric wire 3 to soldering will be described.

  FIG. 6 is a flowchart showing steps from peeling of the insulating coating 31 of the insulating coating-coated electric wire 3 to soldering. FIG. 7 is a side view showing the insulating coating covered electric wire 3 in a state where the insulating coating 31 is not peeled off, and FIG. 8 shows the insulating coating coated electric wire 3 in a state where the flux 11 is applied after the insulating coating 31 is peeled off. FIG. 9 is a side view showing the insulating coating coated electric wire 3 in a state in which the other component 6 is connected to the portion where the flux 11 is applied, and FIG. 10 is an insulation in a state where the flux 11 is applied together with the other component 6. FIG. 11 is a side view showing the insulating coating-coated electric wire 3 in a state where the flux 11 is applied together with other components 6, and FIG. 12 is a diagram showing the solder 12 together with the other components 6 applied with the flux 11. It is a side view which shows the insulation coating covering electric wire 3 which shows the state applied.

  In the case where the insulating coating coated electric wire 3 and the other component 6 are joined by soldering, first, the insulating coating coated electric wire 3 is immersed in the flux storage tank 1 of the insulating coating peeling apparatus according to the present invention (step S1). At this time, the depth of the insulating coating-coated electric wire 3 is adjusted by the electric wire depth adjuster 5 so that the tip thereof passes through the passage holes 42 of the two fixing portions 41.

Next, by rotating the blade 22 of the peeling device 2, the insulating coating 31 of the insulating coating coated electric wire 3 immersed in the flux storage tank 1 is peeled (step S2). At this time, the depth of the insulating coating-coated electric wire 3 is adjusted by the electric wire depth adjuster 5 so as to gradually raise its tip toward the blade 22. Thereby, the insulating coating 31 of only the part to peel off can be peeled. The depth may be adjusted by gradually lowering the tip of the insulating coating-coated electric wire 3 from the position of the blade 22 to the deep part of the flux storage tank 1. Also by this, the insulating coating 31 can be peeled off.

  Thereafter, the insulating coating-coated electric wire 3 to which the flux is applied in the flux storage tank 1 is taken out from the flux storage tank 1 and dried as shown in FIG. 8 (step S3). At this time, when the flux 11 that is activated at a high temperature is used, the flux 11 may be heated to the activation temperature. However, since the flux 11 is applied simultaneously with the peeling of the insulating coating 31, no oxide coating is formed on the surface of the core wire 32. For this reason, it is not necessary to activate the flux 11 daringly.

  Then, as shown in FIG. 9, the other component 6 is connected to the insulating coating coated electric wire 3 that has been coated with the flux 11 and dried (step S4). As shown in FIG. 10, the insulation coating covered electric wire 3 to which the other components 6 are connected is immersed again in the tank in which the flux 11 is stored, and the flux 11 is applied (step S5).

  And as shown in FIG. 11, it takes out from the tank in which the flux was stored, and dries (step S6). At this time, similarly to step S3, when the flux 11 that is activated at a high temperature is used, the flux 11 may be heated to the activation temperature in order to remove the oxide film of the other component 6.

  In this manner, the flux 11 is applied together with the other components 6 and immersed in a tank in which the solder 12 is stored, and the solder 12 is applied (step S7).

  FIG. 13 is a comparison diagram showing the quality of the joining according to the soldering temperature during application in the joining between the present embodiment and the prior art.

  Here, the joining of the prior art is joining by a process as shown in FIGS. Moreover, (circle) has shown the state in which 50% or more of the surface of a junction part is covered with solder, and x has shown the state in which less than 50% of the surface of a junction part is covered with solder. In FIG. 13, the insulating film-covered electric wire 3 used for the joining of this embodiment and the prior art is a PEWN electric wire, and the solder is composed of 96.4% tin, 3.5% silver, and 0.1% nickel. The flux has a solid content of 15%, a viscosity of 4 mPa, and a halogen content of 0.08 ± 0.02%.

  If it does so, even if it raises the temperature of the solder 12 to 400 degreeC in joining of a prior art, joining will not be favorable. On the other hand, in the joining of this embodiment, if the temperature of the solder 12 is set to 380 ° C. or higher, a good joining can be obtained. This is probably because the oxide film is not formed on the surface of the core wire 32 of the bonded portion in the bonding according to the present embodiment, and it is not necessary to remove the oxide film by heat.

  FIG. 14 is a comparison diagram showing the peeling time depending on the type of solder 12 in the joining of the present embodiment and the prior art.

  Here, when preparing this comparative drawing, two aluminum plates of 5 mm × 30 mm were prepared, and after flux 11 was applied thereto, they were joined to each other with 30 mg of solder 12. And this junction part is immersed in 40 degreeC salt solution, and the time until two aluminum plates peel is measured.

As shown in the column of the peeling time of the prior art in FIG. 14, SnPb-based solder (so-called lead solder) that has been used conventionally has a problem in wettability even if an oxide film is formed on the core wire. Therefore, the peeling time of 3500 (h) was obtained even by the conventional bonding. That is, since lead and aluminum have good bondability, even if contact with aluminum is a small area, it was bonded well. However, lead-free SnAg-based and SnZn-based non-lead solders have been used due to the recent problem of the effects of lead on the human body, and when an oxide film is formed on the core wire, the wettability deteriorates. There was a problem.

  Therefore, when the peeling time between the bonding of the present embodiment and the bonding of the conventional technique is compared, when SnAg solder is used, it is 1208 (h) in the bonding of the conventional technique, whereas in the bonding of the present embodiment. In joining, it has extended dramatically to 3096 (h). Even when SnZn-based solder is used, it is 104 (h) in the conventional joining, but it is dramatically increased to 336 (h) in the joining of this embodiment.

  As described above, according to the present invention, when the oxide film is formed on the core wire, the peeling time can be extended even when non-lead solder having poor wettability is used.

  The flux 11 used in the present embodiment and having a solid content of 15%, a viscosity of 4 mPa, and a halogen content of 0.08 ± 0.02% is activated at 120 ° C. to 160 ° C. Therefore, it is preferable to heat to 120 ° C. to 160 ° C. after applying the flux 11.

  The insulating film peeling apparatus according to the present invention can prevent corrosion of the electric wire after joining without using a flux having a high reducing power, and joins the insulating coating-coated electric wire to other parts by soldering. Useful as.

1 is a schematic diagram of an entire insulating film peeling apparatus according to an embodiment of the present invention. Sectional drawing which shows the cross section of the insulation coating covering electric wire 3 Sectional drawing which shows the cross section of the insulation coating covering electric wire 3 The perspective view which shows a part of blade 22 and the drive part 21 of the state which peels the insulation coating 31 of the insulation coating covered electric wire 3 The perspective view which shows the fixing | fixed part 41 which comprises the fixing member 4. Flow chart showing steps from peeling of the insulating coating 31 of the insulating coating-coated electric wire 3 to soldering Side view showing the insulating coating covered electric wire 3 in a state where the insulating coating 31 is not peeled off. Side view showing the insulating coating coated electric wire 3 in a state where the flux 11 is applied after the insulating coating 31 is peeled off. The side view which shows the insulation coating covering electric wire 3 in the state in which the other components 6 were connected to the part to which the flux 11 was applied Side view showing insulating coating-coated electric wire 3 in a state where flux 11 is applied together with other components 6 Side view showing the insulation coating covered electric wire 3 in a state where the flux 11 is applied together with the other components 6 The side view which shows the insulation coating covering electric wire 3 which shows the state by which the solder 12 is apply | coated with the other components 6 to which the flux 11 was applied In the joining of this embodiment and the prior art, a comparison diagram showing the quality of the joining due to the soldering temperature during application Comparison diagram showing peeling time according to the type of solder 12 in the joining of this embodiment and the prior art Flow diagram showing the conventional wire soldering process The figure which shows the state which connected the other components 6 to the insulating coating covering electric wire 3 which peeled the insulating coating 31 in the conventional soldering flow. The figure which shows the state which immersed the insulation coating electric wire 3 and the other components 6 in the conventional soldering flow in the tank in which the flux 11 is stored. The figure which shows the state which dries or heats the flux 11 adhering to the insulation coating electric wire 3 and the other components 6 in the conventional soldering flow. The figure which shows the state which immersed the electric wire and the other components 6 which adhered the flux 11 in the conventional soldering flow in the tank in which the solder 12 is stored.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Flux storage tank 2 Peeling device 3 Insulation film covering electric wire 4 Fixing member 5 Wire depth adjuster 6 Other parts 11 Flux 12 Solder 21 Drive part 22 Blade 23 Motor 24 Transmission shaft 25 Gear 26 Transmission belt 27 Gear 28 Rotating plate 31 Insulation film 32 Core wire 41 Fixing part 42 Passage hole 60 Flux circulation device 61 Pump 62 Filter 63 Piping

Claims (12)

Insulating coating stripping device used when stripping an insulating coating as a pretreatment for soldering to an insulating coating coated electric wire,
A flux storage tank for storing flux inside,
A stripper for stripping the insulating coating at the tip of the insulating coating-coated electric wire, the core coating of which is immersed in the flux storage tank and having a core wire covered with at least one insulating coating, so that the core wire is exposed;
An insulating coating film peeling apparatus for an insulating coating coated electric wire, comprising:   2. The insulation-coated wire according to claim 1, wherein the peeling device includes a support member that supports at least two points of the wire immersed in the flux storage tank so that the wire can pass through the insulation-coated wire. Insulating film peeling device.   The insulating coating for an insulating coating-coated electric wire according to claim 1 or 2, wherein the peeling device includes a blade that rotates around an axis of an insulating coating-coated electric wire immersed in the flux storage tank. Peeling device.   The said peeling device is provided with the drive part which rotates the said blade, The insulation film peeling apparatus of the insulation film coating electric wire of Claim 3 characterized by the above-mentioned.   5. The flux circulation part further connected to the flux storage tank for removing debris of the insulating coating and the deteriorated flux from the insulating coating-coated electric wire, and further comprising a flux circulation section. An insulation coating stripping device for an insulation coating coated electric wire according to claim 1.   The insulation film peeling apparatus for an insulation film coated electric wire according to any one of claims 1 to 5, further comprising a wire depth adjuster for changing a position where the insulation film of the insulation film coated electric wire is peeled off. .   The insulation coating film peeling device for an insulation coating coated electric wire according to any one of claims 1 to 6, wherein the core wire of the insulating coating coated electric wire is made of aluminum.   The said solder is a lead-free solder, The insulation film peeling apparatus of the insulation film coating electric wire in any one of Claim 1 thru | or 7 characterized by the above-mentioned. A first flux immersing step of immersing the tip of the insulating coating-coated electric wire in which the core wire is covered with at least one layer of insulating coating in a flux storage tank for storing flux;
A peeling step of peeling the insulating coating at the tip of the insulating coating-coated electric wire immersed in the flux storage tank so that the core wire is exposed;
An extraction drying step of taking out the insulating coating-coated electric wire from which the insulating coating at the tip portion has been peeled off in the peeling step from the flux storage tank, and drying the flux attached on the core wire,
A connecting step of connecting a part to which the flux is adhered and other parts of the part where the insulating coating of the insulating coating-coated wire is peeled off,
A soldering step of soldering a connecting portion with other parts of the insulating coating-coated electric wire;
A method for soldering an insulated coating-coated electric wire, comprising:   The insulation according to claim 9, further comprising a second flux immersion step of immersing a connection portion with the other part of the insulating coating-coated electric wire in the flux storage tank after the connection step. Soldering method for coated wires.   The method of soldering an insulation coating-coated electric wire according to claim 9 or 10, wherein the core wire of the insulation coating-coated electric wire is made of aluminum.   The method for soldering an insulating coating-coated electric wire according to claim 9, wherein the solder is lead-free solder.

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