CN109514063A - A kind of motor winding welding technique - Google Patents
A kind of motor winding welding technique Download PDFInfo
- Publication number
- CN109514063A CN109514063A CN201811649623.6A CN201811649623A CN109514063A CN 109514063 A CN109514063 A CN 109514063A CN 201811649623 A CN201811649623 A CN 201811649623A CN 109514063 A CN109514063 A CN 109514063A
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- welding
- electrode
- conducting wire
- lower electrode
- groove
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/30—Features relating to electrodes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
- Windings For Motors And Generators (AREA)
Abstract
The object of the present invention is to provide a kind of other conducting wires that can avoid for the interference of welding operation, can easily implement the motor winding welding technique of the electric resistance welding of machine winding；It is to carry out electric resistance welding to wire termination using motor winding welding electrode, motor winding welding electrode include all made of the good conductor of electricity, the top electrode for clamping two soldered wire terminations and lower electrode, lower electrode body one end of lower electrode open up groove；Top electrode powers on polar body with top electrode end face, and the end of two conducting wires is between top electrode end face and groove bottom surface, or between top electrode end face and the groove slot bottom back side；The welding procedure includes the following steps: two layer conductors in welding lead machine winding, again in welding lead machine winding with the other layer conductor that has connection relationship in other two layer conductor of the welded connectionless relationship of two layer conductors or welding lead machine winding with two welded layer conductors.
Description
Technical field
The present invention relates to field of motor manufacturing, a kind of motor winding welding technique especially flat wire motor winding welding is provided
Technique；The motor winding welding technology utilization motor winding welding electrode, using two layers of conducting wire for needing to be welded to each other of every production
Afterwards, the method for welding a circulation, avoids other conducting wires for the interference of welding operation, can easily implement the electricity of machine winding
Welding resistance.
Background technique
With the development of new-energy automobile, because flat wire (section is rectangle or approximate rectangular conducting wire) winding electric machine has more
High power density and better performance is increasingly becoming the developing direction of new energy motor, and flat wire is required by welding
It could be finally fabricated to winding, so welding procedure decides quality, durability and the manufacturing cost of motor.
If being referred to as winding layers with the conducting wire on Radius being located at, two are welded together according to certain rule
Layer is referred to as winding set, and due to the gap very little between two winding sets, the main technique using end face welding, more common at present
Method is that two copper wire that will need to weld are close together, and in the end face of the two, uses argon arc welding welding and electric resistance welding.
The advantages of argon arc welding welding is: welding procedure is easy to accomplish, and tooling is simple.
The shortcomings that argon arc welding welding, is: in welding process, since the copper of wire termination melts completely, and after cooling, copper crystallization
For big crystal, big crystal brittleness is big, is easily broken off, for that purpose it is necessary to after welding be wrapped up solder joint using resin glue, to protect
Solder joint is protected, avoids cracking；The resistance of solder joint is big, and resistance is influenced by welding, and the cross-sectional area of conductor consistency at the position of welding is bad,
Resistance is unstable to cause solder joint to generate heat, it is difficult to control quality；Solder joint is wrapped up using resin glue, drops the heat dissipation performance of wire termination
It is low, it is unfavorable for radiating, and at high cost.
Electric resistance welding has the characteristics that operating efficiency is high, quality of welding spot is reliable, at low cost, still, since electric resistance welding must lead to
It crosses upper/lower electrode and clamps two conducting wires for needing to weld, then apply high current, two conductor contacts site are welded together.
And the gap very little between two winding sets, it is limited by space, electrode can only be done smaller.And the lesser unbearable electricity of electrode
Pressure when welding resistance works, in addition, lesser electrode thermal capacity is inadequate, heat-sinking capability is poor, will lead to electrode and conductor adhesion, welds
It is larger to connect technology difficulty.So conventional electric resistance welding technique and tooling is difficult to meet the needs of batch production, cause at present
Electric resistance welding is difficult to the welding popular for use in machine winding.
Summary of the invention
The object of the present invention is to provide a kind of motor winding welding techniques；The motor winding welding technology utilization machine winding
Welding electrode, after two layers of conducting wire for needing to be welded to each other of every production, the method for welding a circulation avoids other conducting wires pair
In the interference of welding operation, it can easily implement the electric resistance welding of machine winding.
The purpose of the present invention is be achieved through the following technical solutions:
A kind of motor winding welding technique carries out electric resistance welding to wire termination using motor winding welding electrode,
Motor winding welding electrode includes all made of the good conductor of electricity, for clamping two soldered wire terminations
Lower electrode body one end of electrode and lower electrode, lower electrode opens up groove；Top electrode powers on polar body with top electrode end face, and two
The end of conducting wire between top electrode end face and groove bottom surface, or be located at top electrode end face and the groove slot bottom back side it
Between；
The welding procedure includes the following steps:
A, two layer conductors in welding lead machine winding, including following work step:
1) production needs the conducting wire welded in stator core
The insulating layer on the conducting wire of conducting wire weld part and the faying face on the joint surface of conducting wire, conducting wire and electrode is removed, is needing to weld
Couple of conductor joint surface lining set solder, keep the end of the every couple of conductor that need to be welded opposite；
2) electrode is in place under
The groove bottom surface or rear-face contact for making a wire termination Yu lower electrode, into can welding state；
3) be powered welding
The top electrode end face of top electrode compresses another wire termination, and the welding that is powered；
4) after the completion of welding, top electrode, separation conducting wire and lower electrode are withdrawn；
5) repeat process step 2)-work step 4), lower couple of conductor is welded, the conductor wire end of welding in need until being soldered；
B, other two layer conductor in welding lead machine winding with the connectionless relationship of two layer conductors welded through step A, or
There are an other layer conductor for connection relationship, including following work in welding lead machine winding with two layer conductors welded through step A
Step:
1) according to work step 1 in step A) one or two layers of the production again conducting wire that needs to weld；
2) work step 2 in step A is executed)-work step 5), the wire termination of welding in need until being soldered；
As the further improvement to above-mentioned motor winding welding technique, in the work step 1 of step B) after, work step 2) before have
Following step: the conducting wire without welding, pushing to the conducting wire direction far from weld job, and it is empty to generate the operation that welding needs
Between.It is preferred that there is chamfering in the end of groove slot bottom electrode tip under；In the work step 1 of step B) after, work step 2) before
Have following step: by the conducting wire of the groove slot bottom of lower electrode insertion welding and without between the conducting wire of welding, without
The conducting wire of welding is pushed to the conducting wire direction far from weld job, generates the working space that welding needs.
As the further improvement to above-mentioned motor winding welding technique, in the case where the lower end for powering on polar body can extend into
The boss contacted in electrode groove but not with recess sidewall, the lower end surface of boss are top electrode end face.
As the further improvement to above-mentioned motor winding welding technique, solder is sheet or paste or powdered filler metal.
As the further improvement to above-mentioned motor winding welding technique, groove has at least one and lower electrode body one
The connected side wall of body.
As the further improvement to above-mentioned motor winding welding technique, in lower electrode body the same end, there are two back-to-back
Groove.
As the further improvement to above-mentioned motor winding welding technique, the welding that is powered includes precompressed, energization, keeps pressure
The processes such as power.
The beneficial effects of the present invention are:
The present invention utilizes the motor winding welding electrode of specific structure, the welding of machine winding is realized with electric resistance welding, significantly
Reliability and production efficiency are improved, production cost is reduced.The motor winding welding technology utilization motor winding welding electrode uses
After two layers of conducting wire for needing to be welded to each other of every production, the method for welding a circulation avoids other conducting wires for welding operation
Interference, can easily implement the electric resistance welding of machine winding.
There is chamfering in the end of groove slot bottom electrode tip under；Chamfering plays the guiding role for conducting wire, makes
Conducting wire easily enters groove；It as needed, can be the wire termination welded close to needs using the groove slot bottom with chamfering
Other conducting wires separate, and it is in place to be conducive to lower electrode for the distance between the wire termination for increasing other conducting wires and needing to weld.Certainly,
Other methods can also be used, the conducting wire for not needing welding is pushed to the conducting wire direction welded far from needs, form lower electrode
Working space.At this point, it is no longer necessary that chamfering is arranged on lower electrode.
The side wall that there is groove at least one to be integrally connected with lower electrode body.The side wall of groove can be considered as and connect firmly recessed
Stiffener plate between slot slot bottom and lower electrode body, effectively improves the intensity of lower electrode, can tolerate lower electrode above and below when welding
Pressure and impact force between electrode, make it possible in small space realize electric resistance welding, meanwhile, two sides, which help to improve, leads
The thermal capacity of lower electrode, prevents conducting wire and electrode adhesion near line.
The top electrode end face of top electrode is the lower end surface for powering on polar body, which is to power on polar body plane；Lower electrode plane
It is used cooperatively with polar body plane is powered on.
The boss of top electrode allows to protrude into the groove of lower electrode, pushes down conducting wire.Top electrode boss and lower electrode are recessed
There are gaps between the side wall of slot, to avoid short circuit occurs.Certainly the cooperation of lower electrode and top electrode, either top electrode
Boss protrudes into the cooperation of lower electrode groove, and (two wire terminations that needs are welded are pressed on boss and lower electrode groove slot bottom
Between surface), (two conductor wire ends that needs are welded can also be cooperated with top electrode and the plane at the lower electrode groove slot bottom back side
Portion is pressed between boss and the back side of lower electrode groove slot bottom), for the latter, the boss of top electrode is not required at this time.
Solder be sheet solder, paste solder or other facilitate the solder that brazing connects.Top electrode pushing makes electrode and leads
Line, conducting wire and conducting wire fit closely, and later, are powered, due to solder resistance with higher, can be between two conducting wires
Molten bath is formed, after cooling together by two conductor adhesions.
In lower electrode body the same end, there are two back-to-back grooves.Certainly, lower electrode is also possible to one end only one is recessed
Slot.In welding, the selection of the use direction of groove and single two-sided arrangement is not involved in weld job when depending on this welding
Other wire counter electrodes disturbed condition, determine that principle is: groove towards without other conducting wires interfere direction.
The welding of energization described in this patent belongs to the prior art, is can be here including precompressed delay, is powered, holding pressure
Welding process, be also possible to a part therein.
Detailed description of the invention
Fig. 1 is the structural schematic diagram with the top electrode of boss；
Fig. 2 is the bottom view of Fig. 1；
Fig. 3 is the side view of Fig. 1；
Fig. 4 is the structural schematic diagram of the lower electrode with a groove；
Fig. 5 is the bottom view of Fig. 4；
Fig. 6 is the side view of Fig. 4；
Fig. 7 is that there are two the structural schematic diagrams of the lower electrode of groove for tool；
Fig. 8 is the bottom view of Fig. 7；
Fig. 9 is the side view of Fig. 7；
Electrode job state when Figure 10 is two layers of flat wire welding；
Figure 11 is the side view of Figure 10；
One of electrode job state when Figure 12 is flat wire welding；
The two of electrode job state when Figure 13 is flat wire welding；
The three of electrode job state when Figure 14 is flat wire welding；
The four of electrode job state when Figure 15 is flat wire welding.
Specific embodiment
With reference to the accompanying drawing, the invention will be further described:
Referring to a kind of flat wire motor winding welding electrode shown in Fig. 1-Fig. 9, Figure 14 include all electricity good conductor made of on
The lower electrode 2 of 3 end of electrode 1 and pluggable flat wire, top electrode 1 and lower electrode 2 use in pairs.
Lower electrode 2, which divides, opens up the length along lower electrode body 201 in one end of lower electrode body 201 for single recess electrode 2a(
The groove 202 that degree direction extends) and dual-cavity electrode 2b(in one end of lower electrode body 201 open up the length along lower electrode body 201
Two back-to-back grooves 202 that direction extends) two kinds.Lower electrode body 201 does not open up one end of groove 202 for wiring.
There are two parallel side walls 206 for the tool of groove 202.
There are many shapes of lower 201 cross section of electrode body, such as isosceles trapezoid, rectangle, semicircle, and lower electricity is chosen in this case
The cross section of polar body 201 is rectangle.
The groove slot bottom 203 and side wall 206 of groove 202 are respectively provided with chamfering 204.
On electric resistance welding circuit, top electrode 1 only constitutes access by flat wire 3 with lower electrode 2.Top electrode 1, which is removed, is used for conduct
Outside the component part of welding circuit, it is also used to apply pressing force for flat wire 3.
Top electrode 1 include power on polar body 101, the lower end for powering on polar body 101 have for lower 2 collective effect of electrode to press
The top electrode end face 103 of tight flat wire 3.
It is two kinds that top electrode 1, which is divided to:
One is there is boss top electrode 1a, there is boss 104 in the lower end for powering on polar body 101, the lower end surface of boss 104 is top electrode
End face 103.Boss 104 can be extend into groove 202, have clearance for insulation between 202 side wall of boss 104 and groove.
Another kind is no boss top electrode 1b, and the top electrode end face 103 of top electrode 1 is the lower end surface for powering on polar body 101.
Lower electrode 2 and top electrode 1 use in pairs, main function first is that compressing flat wire 3 is conducive to welding, 202 slot bottom of groove
It can be plane, be also possible to the face for having raised or sunken；Likewise, top electrode end face can be plane, be also possible to have
There is raised or sunken face.
202 bottom surface 207 of groove and the 202 slot bottom back side 205 of groove all can be used as the working face of welding.Lower electrode 2 with
The cooperation of top electrode 1 can be the 202 slot bottom table of groove for powering on 101 lower end surface of polar body Yu lower electrode of no boss top electrode 1b
Face 207 cooperates, and power on 101 lower end surface of polar body and the 202 slot bottom back side 205 of groove of lower electrode of no boss top electrode 1b cooperates,
202 bottom surface 207 of groove of the boss lower surface and lower electrode that have boss top electrode 1a cooperates, alternatively, there is boss top electrode
The 202 slot bottom back side 205 of groove of the boss lower surface of 1a and lower electrode cooperates.The use direction of groove 202 and two kinds of lower electrodes
The selection of 2a, 2b, other flat wires 3 depending on the not welding when secondary welding determine that principle is to the disturbed condition of lower electrode 2:
Groove 202 is towards the direction interfered without non-welding flat wire 3.
Again referring to shown in Figure 10-Figure 15, using above-mentioned flat wire motor winding welding electrode for being needed in flat wire machine winding 4
When 3 welding of flat wire to be welded, follow the steps below to implement:
A, two layers of flat wire in flat wire machine winding, including following work step are welded:
1) production needs the flat wire welded in stator core
Remove the insulation on the flat wire 3 of 3 weld part of flat wire and the faying face on the joint surface of flat wire 3, flat wire 3 and upper/lower electrode 1,2
Layer sets solder 5 in 3 joint surface of a pair of of flat wire lining that need to be welded, keeps the end for every a pair of of the flat wire 3 that need to be welded opposite；More often
Solder 5 is sheet solder or paste solder, is easy to operate, selection sheet solder in this case.
2) electrode is in place under
Lower electrode 2 is connect with electric resistance welding welding machine by welding cable (not shown), moving iron core or lower electrode are by flat wire 3
Reliably it is abutted against with lower electrode 2, entering flat wire 3 and lower electrode 2 can welding state；
3) be powered welding
Mobile top electrode 1, the above electrode end surface 103 push two flat wires 3, Ling Yigen for making top electrode 1 and flat wire 3, pre-welding
Flat wire 3 and lower electrode 2 fit closely；It is powered, the resistance with higher of solder 5 forms molten bath between two flat wires 3, cooling
Two flat wires 3 are welded together afterwards；Welding process include precompressed, energization, keep the links such as pressure or in which a part.
4) after the completion of welding, top electrode 1, separation flat wire 3 and lower electrode 2 are withdrawn；
5) repeat process step 2)-work step 4), lower a pair of of flat wire 3 is welded, 3 end of flat wire of welding in need until being soldered；
B, other two layer conductor in welding lead machine winding with the connectionless relationship of two layer conductors welded through step A, or
There are an other layer conductor for connection relationship, including following work in welding lead machine winding with two layer conductors welded through step A
Step:
1) according to work step 1 in step A) one or two layers of the production again conducting wire that needs to weld；If the conducting wire of new production
Layer does not have connection relationship with the conducting wire welded before, then makes two layers, otherwise, makes one layer；
By the conducting wire of the groove slot bottom of lower electrode insertion welding and without between the conducting wire of welding, leading without welding
Line is pushed to the conducting wire direction far from weld job, generates the working space that welding needs；
2) work step 2 in step A is executed)-work step 5), the wire termination of welding in need until being soldered.
C, step B, until complete welding in need flat wire welding.
A kind of flat wire motor winding welding electrode, upper/lower electrode have a variety of alternative cooperation combinations, have structure
Simply, advantage easy to use.
Using above-mentioned flat wire motor winding welding electrode for need to weld in flat wire machine winding flat wire welding when, can
It effectively avoids other flat wires for the interference of welding operation, easily implements the electric resistance welding of machine winding.The flat wire machine winding
Welding procedure utilizes flat wire motor winding welding electrode, after two layers of flat wire for needing to be welded to each other of every production, welds one
The method of circulation avoids other flat wires for the interference of welding operation, can easily implement the electric resistance welding of machine winding.
Claims (7)
1. a kind of motor winding welding technique carries out electric resistance welding to wire termination using motor winding welding electrode, characterized in that
Motor winding welding electrode includes all made of the good conductor of electricity, for clamping two soldered wire terminations
Lower electrode body one end of electrode and lower electrode, lower electrode opens up groove；Top electrode powers on polar body with top electrode end face, and two
The end of conducting wire between top electrode end face and groove bottom surface, or be located at top electrode end face and the groove slot bottom back side it
Between；
The welding procedure includes the following steps:
A, two layer conductors in welding lead machine winding, including following work step:
Production needs the conducting wire welded in stator core
The insulating layer on the conducting wire of conducting wire weld part and the faying face on the joint surface of conducting wire, conducting wire and electrode is removed, is needing to weld
Couple of conductor joint surface lining set solder, keep the end of the every couple of conductor that need to be welded opposite；
Lower electrode is in place
The groove bottom surface or rear-face contact for making a wire termination Yu lower electrode, into can welding state；
Be powered welding
The top electrode end face of top electrode compresses another wire termination, and the welding that is powered；
After the completion of welding, top electrode, separation conducting wire and lower electrode are withdrawn；
Repeat process step 2)-work step 4), lower couple of conductor is welded, the conductor wire end of welding in need until being soldered；
B, other two layer conductor in welding lead machine winding with the connectionless relationship of two layer conductors welded through step A, or
There are an other layer conductor for connection relationship, including following work in welding lead machine winding with two layer conductors welded through step A
Step:
1) according to work step 1 in step A) one or two layers of the production again conducting wire that needs to weld；
2) work step 2 in step A is executed)-work step 5), the wire termination of welding in need until being soldered.
2. motor winding welding technique according to claim 1, characterized in that
In the work step 1 of step B) after, work step 2) before have following step: the conducting wire without welding, make to far from welding
The conducting wire direction of industry is pushed, and the working space that welding needs is generated.
3. motor winding welding technique according to claim 2, characterized in that the electrode tip under groove slot bottom direction
End has chamfering；In the work step 1 of step B) after, work step 2) before have following step: inserted by the groove slot bottom of lower electrode
Enter the conducting wire of welding and without between the conducting wire of welding, the conducting wire without welding, to the conducting wire side far from weld job
To pushing, the working space that welding needs is generated.
4. motor winding welding technique according to claim 1, characterized in that can extend into the lower end for powering on polar body
The boss contacted in lower electrode groove but not with recess sidewall, the lower end surface of boss are top electrode end face.
5. motor winding welding technique according to claim 1, characterized in that solder is sheet or paste or powdery pricker
Material.
6. motor winding welding technique according to claim 1, characterized in that groove has at least one and lower electrode body
The side wall being integrally connected.
7. motor winding welding technique according to claim 1, characterized in that in lower electrode body the same end, there are two back
To the groove of back.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811649623.6A CN109514063A (en) | 2018-12-30 | 2018-12-30 | A kind of motor winding welding technique |
| PCT/CN2019/108808 WO2020140503A1 (en) | 2018-12-30 | 2019-09-28 | Motor winding welding electrode and motor winding welding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811649623.6A CN109514063A (en) | 2018-12-30 | 2018-12-30 | A kind of motor winding welding technique |
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| Publication Number | Publication Date |
|---|---|
| CN109514063A true CN109514063A (en) | 2019-03-26 |
Family
ID=65797490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811649623.6A Pending CN109514063A (en) | 2018-12-30 | 2018-12-30 | A kind of motor winding welding technique |
Country Status (1)
| Country | Link |
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| CN (1) | CN109514063A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111375878A (en) * | 2020-04-26 | 2020-07-07 | 宁波精成电机有限公司 | Welding electrode structure |
| WO2020140503A1 (en) * | 2018-12-30 | 2020-07-09 | 苏州阿福机器人有限公司 | Motor winding welding electrode and motor winding welding process |
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| CN1138765A (en) * | 1995-03-27 | 1996-12-25 | 矢崎总业株式会社 | Method of connecting wire to terminal and apparatus therefor |
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| CN103358002A (en) * | 2013-06-25 | 2013-10-23 | 欧托凯勃汽车线束（太仓）有限公司 | Electric resistance welding equipment and method for welding end part of flat copper braided belt |
| US20160028294A1 (en) * | 2014-07-23 | 2016-01-28 | Toyota Jidosha Kabushiki Kaisha | Manufacturing method for segment coil |
| CN108136480A (en) * | 2015-11-12 | 2018-06-08 | 住友电装株式会社 | The manufacturing method of metal wire ribbon-shaped members comprising joint portion, the manufacturing method of the metal wire ribbon-shaped members with terminal, mold and the metal wire ribbon-shaped members comprising joint portion |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1138765A (en) * | 1995-03-27 | 1996-12-25 | 矢崎总业株式会社 | Method of connecting wire to terminal and apparatus therefor |
| CN101073848A (en) * | 2007-06-11 | 2007-11-21 | 张荣焕 | Inserted copper-aluminum pipe resistance welder |
| JP2012253880A (en) * | 2011-06-01 | 2012-12-20 | Toyota Motor Corp | Welding device of motor coil wire and welding method of motor coil wire |
| CN103358002A (en) * | 2013-06-25 | 2013-10-23 | 欧托凯勃汽车线束（太仓）有限公司 | Electric resistance welding equipment and method for welding end part of flat copper braided belt |
| US20160028294A1 (en) * | 2014-07-23 | 2016-01-28 | Toyota Jidosha Kabushiki Kaisha | Manufacturing method for segment coil |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020140503A1 (en) * | 2018-12-30 | 2020-07-09 | 苏州阿福机器人有限公司 | Motor winding welding electrode and motor winding welding process |
| CN111375878A (en) * | 2020-04-26 | 2020-07-07 | 宁波精成电机有限公司 | Welding electrode structure |
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