CN117375287A - Welding-free motor flat wire crimping structure and crimping process - Google Patents
Welding-free motor flat wire crimping structure and crimping process Download PDFInfo
- Publication number
- CN117375287A CN117375287A CN202311162354.1A CN202311162354A CN117375287A CN 117375287 A CN117375287 A CN 117375287A CN 202311162354 A CN202311162354 A CN 202311162354A CN 117375287 A CN117375287 A CN 117375287A
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- flat wire
- ring
- tightening
- injection molding
- flat
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- 238000002788 crimping Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000001746 injection moulding Methods 0.000 claims abstract description 55
- 230000006835 compression Effects 0.000 claims abstract description 12
- 238000007906 compression Methods 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 5
- 238000009413 insulation Methods 0.000 claims description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 239000010949 copper Substances 0.000 claims description 10
- 238000005056 compaction Methods 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 7
- 238000005538 encapsulation Methods 0.000 claims description 6
- 238000007711 solidification Methods 0.000 claims description 6
- 230000008023 solidification Effects 0.000 claims description 6
- 238000004382 potting Methods 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 230000008093 supporting effect Effects 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims 4
- 229920003023 plastic Polymers 0.000 claims 4
- 239000004033 plastic Substances 0.000 claims 4
- 241000446313 Lamella Species 0.000 claims 2
- 239000003292 glue Substances 0.000 abstract description 10
- 238000003466 welding Methods 0.000 abstract description 10
- 230000000670 limiting effect Effects 0.000 abstract description 6
- 230000002159 abnormal effect Effects 0.000 abstract description 3
- 230000004323 axial length Effects 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 206010037660 Pyrexia Diseases 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/0056—Manufacturing winding connections
- H02K15/0068—Connecting winding sections; Forming leads; Connecting leads to terminals
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/12—Impregnating, heating or drying of windings, stators, rotors or machines
Abstract
The invention relates to a welding-free motor flat wire crimping structure and a crimping process, wherein in the flat wire crimping process, the ends of two flat wires are initially compressed and limited through an initial tightening ring, then the ends of the flat wires are further compressed and limited by matching with an insulating injection molding ring and a re-tightening strip, compared with the prior art, the welding positioning is directly carried out, the two flat wires are relatively stable and even in contact, the abnormal heating condition is effectively avoided, the height of the ends of the flat wires can be reduced, the axial length of a motor can be correspondingly shortened, in addition, in the filling and sealing process after compression, the micro-tightening piece can be transversely expanded through the arrangement of an external magnetic field and the circumferential movement of the magnetic field, the insulating injection molding ring is longitudinally tensioned, the compression limiting effect on the flat wires is further improved, meanwhile, glue liquid can directly enter the micro-tightening piece during filling and sealing, after the glue liquid filled and solidified, the expanded micro-tightening piece can be directly supported, and the flat wires are stably limited.
Description
Technical Field
The invention relates to a motor flat wire crimping structure and a crimping process, in particular to a welding-free motor flat wire crimping structure and a crimping process applied to the field of motor flat wires.
Background
Flat wire, also known as flat wire, flat angle wire or ultra-narrow strip, refers to a foreign wire with a cross section that approximates a rounded rectangle, commonly used in motors, with a thickness from 0.025mm to 2mm and a width generally less than 5mm. The aspect ratio varies from 2:1 to 50:1. Because flat filaments are ribbon-like, they are sometimes referred to as ultra-narrow flat ribbons. Compared with common round wires, the flat wires have unique advantages in heat dissipation, welding contact area, fatigue resistance, hardness control and the like.
In the prior art, the flat wire ends of the motor are welded and shaped generally, the welding mode has complex operation, a certain flat wire height space is needed to be reserved in the motor, and the contact surface of the two flat wires is uneven due to uneven welding seams in welding, so that abnormal heating is easy to occur at the contact position of the flat wires in the operation of the motor.
Disclosure of Invention
Aiming at the prior art, the technical problem to be solved by the invention is that the end part of the flat wire has obvious defects in the prior art in a welding and shaping mode.
In order to solve the problems, the invention provides a welding-free motor flat wire crimping structure, which comprises a plurality of primary tightening rings respectively sleeved outside a plurality of pairs of flat wires, wherein the outer parts of the pairs of primary tightening rings are respectively provided with an insulating injection molding ring, the insulating injection molding rings are of annular structures coaxial with a motor, a plurality of limit grooves are cut on the insulating injection molding rings, the primary tightening rings are matched with the limit grooves, the flat wires are connected with a motor stator, a plurality of re-tightening strips are connected between the insulating injection molding rings and the motor stator, each primary tightening ring comprises two conical surface sleeve flaps and a plurality of pre-tightening ropes fixedly connected between the end surfaces of the two conical surface sleeve flaps, and each re-tightening strip comprises two inelastic ropes respectively fixedly connected to the motor stator and the insulating injection molding rings and micro-tightening sheets connected between the end parts of the two inelastic ropes, wherein the end surfaces of the elastic ropes are mutually close to each other.
In the welding-free motor flat wire crimping structure, in the flat wire crimping process, the initial tightening ring is used for initially compressing and limiting the two flat wire ends, then the insulating injection molding ring is matched with the re-tightening ring, the flat wire ends are further compressed and limited, and compared with the prior art, the welding positioning is directly carried out, the two flat wires can be contacted relatively stably and uniformly, and abnormal heating is effectively avoided.
As a further improvement of the method, the conical sleeve petals are made of metal copper materials, the pre-pressing rope is of an insulating elastic structure, and when the pre-pressing rope is in an original length, the edges of the two conical sleeve petals cannot be rounded.
As still further improvement of this application, the surface of flat wire tip surface and just the surface of holding ring are conical surface structure, and the radial cross-section of flat wire tip is the semicircle, and flat wire tip and just hold ring inner wall mutually match, and conical surface structure is big towards the one end diameter of stator.
As a further improvement of the application, the micro-tightening piece comprises two vertical symmetrical hard pieces and two horizontal symmetrical outer arc elastic pieces, the edges of the outer arc elastic pieces are fixed with the edges of the adjacent hard pieces, and the inelastic rope movably penetrates the adjacent hard pieces and is fixedly connected with the inner wall of one of the outer arc elastic pieces.
As a further improvement of the application, the outer end of the outer arc elastic sheet is fixedly connected with a magnetic patch, and one ends of the two magnetic patches, which are close to each other, have the same magnetic pole.
A welding-free motor flat wire crimping process comprises the following steps:
s1, firstly, peeling the end part of a flat wire, then pressing the end part of the flat wire into a semicircle, and crimping the non-conical surface end of the flat wire into an end surface groove of a stator;
s2, forming the end parts of the two flat wires into a finished round shape relatively, sleeving the primary tightening ring outside the two flat wires, and pre-tightening the two flat wires by the primary tightening ring at the moment to primarily limit the flat wires;
s3, sleeving an insulating injection molding ring outside the primary tightening ring, fixing the insulating injection molding ring and the stator through a re-tightening strip, then performing filling and sealing treatment, and applying a magnetic field outside the insulating injection molding ring while filling and sealing to continuously expand the micro-tightening piece, tightening the micro-tightening piece, and tightening the insulating injection molding ring and the stator from the inside to further fasten the flat wire;
s4, after encapsulation and solidification, twisting the end part of the flat wire along the circumferential direction, and finally, crimping the flat wire.
As a further improvement of the present application, in step S3, the specific operation of the externally applied magnetic field is as follows: the magnetic field and the plurality of re-tightening strips are controlled to be at the same height, then the insulating injection molding rings are controlled to move continuously along the radial direction along the lower edges of the insulating injection molding rings, so that the magnetic field generates opposite magnetic force to the two magnetic patches on the opposite re-tightening strips, the edges of the micro-tightening strips are opened, the potting adhesive liquid enters the micro-tightening strips, after solidification, a stable internal supporting effect is achieved in the micro-tightening strips, the insulating injection molding rings can stably extrude the flat wire ends after compression joint, and the two flat wire ends are in stable contact.
As a further improvement of the application, the copper bars connected in series are fixedly inlaid in the insulating injection molding ring, the conical surface ends of the flat wires extend out of the insulating injection molding ring, and the ends of the flat wires positioned in the insulating injection molding ring are twisted outwards in the radial direction and are in contact with the copper bars in the insulating injection molding ring.
In summary, in flat wire crimping process, first carry out preliminary compaction spacing to two flat wire tip through just tight ring, then cooperate insulating injection molding ring and tight strip again, carry out further compaction spacing to flat wire tip, compare in prior art and directly pass through welding location, can make two flat wires relatively steady even contact, effectively avoid the condition of unusual fever to can reduce the height of flat wire tip, make the axial length of motor also can shorten correspondingly, in addition, in the embedment process after compressing tightly, through the setting of externally applied magnetic field and making magnetic field circumference remove, can make little tight piece transversely expand, make vertically take up insulating injection molding ring, make the compaction spacing effect to the flat wire obtain further improvement, glue solution can directly enter into little tight piece in the embedment simultaneously, the glue solution of embedment solidifies the back, can directly support the little tight piece of expansion, make it stabilize spacing to the flat wire.
Drawings
FIG. 1 is a schematic cross-sectional view of a first embodiment of the present application;
fig. 2 is a schematic diagram of the primary compression limiting of two flat wires by the primary compression ring according to the first embodiment of the present application;
FIG. 3 is a schematic view of a primary tightening ring according to a first embodiment of the present application;
FIG. 4 is a schematic cross-sectional view of a re-tightening strap according to a first embodiment of the present application;
FIG. 5 is a cross-sectional view of the first embodiment of the present application showing the application of a magnetic field followed by compaction;
FIG. 6 is a cross-sectional view of the glue solution after entering the re-tightening strip for curing and shaping during potting according to the first embodiment of the present application;
fig. 7 is a schematic flow chart of a main crimping process according to the first embodiment of the present application;
fig. 8 is a comparison of the radial twist of the end of a flat wire with the axial twist of the prior art in accordance with the second embodiment of the present application.
The reference numerals in the figures illustrate:
the device comprises an insulating injection molding ring 1, a primary tightening ring 2, a conical surface sleeve valve 21, a pre-tightening rope 22, a re-tightening strip 4, a non-elastic rope 41, an outer arc elastic sheet 421, a hard stator 422 and a magnetic patch 5.
Detailed Description
Two embodiments of the present application are described in detail below with reference to the accompanying drawings.
First embodiment:
fig. 1 shows a welding-free motor flat wire crimping structure, in which a represents a flat wire, b represents a stator, the welding-free motor flat wire crimping structure comprises a plurality of primary tightening rings 2 which are respectively sleeved outside a plurality of pairs of flat wires, insulation injection molding rings 1 are arranged outside the pairs of primary tightening rings 2, the insulation injection molding rings 1 are of annular structures coaxial with a motor, a plurality of limiting grooves are cut on the insulation injection molding rings 1, the primary tightening rings 2 are matched with the limiting grooves, the flat wire is connected with the motor stator, a plurality of re-tightening strips 4 are connected between the insulation injection molding rings 1 and the motor stator, the insulation injection molding rings 1 are pulled through the re-tightening strips 4, and then the tensioning flat wire is positioned at the end parts in the primary tightening rings 2, so that the two flat wires can be stably contacted.
Fig. 3 shows that the primary tightening ring 2 includes two conical sleeve flaps 21 and a plurality of pre-compression ropes 22 fixedly connected between the end surfaces of the two conical sleeve flaps 21, the conical sleeve flaps 21 are made of metal copper materials, the pre-compression ropes 22 are of insulating elastic structures, when the pre-compression ropes 22 are in original length, the edges of the two conical sleeve flaps 21 cannot be rounded, after the end portions of the two flat wires are spliced to form a circle, the two conical sleeve flaps 21 are spread when entering the primary tightening ring 2, and at the moment, the pre-compression ropes 22 are in a stretched state, under the condition, the primary tightening ring 2 can play a primary compression limiting role on the end portions of the two flat wires, and the subsequent matching re-tightening strip 4 tightens the insulating injection molding ring 1, so that the fixation of the flat wires can be realized.
The surface of flat wire tip surface and just the surface of holding ring 2 are conical surface structure, and the radial cross-section of flat wire tip is the semicircle, and flat wire tip and just hold ring 2 inner walls mutually support, and conical surface structure is big towards the one end diameter of stator, when insulating injection molding ring 1 receives the power towards the stator, just hold ring 2 can move towards conical surface structure major diameter one end under insulating injection molding ring 1 effect, and then make the flat wire by the extrusion make stable contact, compare in current well welding positioning contact, effectively maintain the stable transmission of flat wire to electric power.
Fig. 4 shows that the re-tightening strip 4 comprises two inelastic ropes 41 fixedly connected to the motor stator and the insulation injection molding ring 1 respectively, and a micro-tightening piece connected between the ends of the two inelastic ropes 41, wherein the micro-tightening piece comprises two upper and lower symmetrical hard fixed pieces 422 and two left and right symmetrical outer arc elastic pieces 421, the edges of the outer arc elastic pieces 421 are fixed with the edges of the adjacent hard fixed pieces 422, and the inelastic ropes 41 movably penetrate through the adjacent hard fixed pieces 422 and are fixedly connected with the inner wall of one outer arc elastic piece 421.
The outer ends of the outer arc spring pieces 421 are fixedly connected with the magnetic patches 5, the magnetic poles at one ends of the two magnetic patches 5, which are close to each other, are identical, so that a repulsive force exists between the two magnetic patches, the two outer arc spring pieces 421 are in arc-shaped deformation, and in addition, as the magnetic poles at the end surfaces of the magnetic patches 5, which are close to each other, are identical, the magnetic poles of the two magnetic patches facing the same direction are opposite, and when a magnetic field is externally applied, the externally applied magnetic field force can generate an adsorption force on one magnetic patch 5 and generate a repulsive force on the other magnetic patch 5, wherein the magnetic patch 5, which is close to the externally applied magnetic field, is subjected to the adsorption force of the externally applied magnetic field.
It is noted that the edges of the two outer arc spring pieces 421, which are not fixed to the hard stator 422, are not fixed to each other, contact each other, or have small openings, when the two outer arc spring pieces 421 are deformed in a direction away from each other under the action of an external magnetic field, the openings can be enlarged, so that glue can enter during encapsulation.
Fig. 7 shows a welding-free motor flat wire crimping process, comprising the steps of:
s1, firstly, peeling the end part of a flat wire, then pressing the end part of the flat wire into a semicircle, and crimping the non-conical surface end of the flat wire into an end surface groove of a stator;
s2, forming the end parts of the two flat wires into a finished round shape relatively, sleeving the primary tightening ring 2 outside the two flat wires, and pre-tightening the two flat wires by the primary tightening ring 2 at the moment to primarily limit the flat wires;
s3, sleeving an insulating injection molding ring 1 outside the primary tightening ring 2, fixing the insulating injection molding ring 1 with a stator through a re-tightening strip 4, then performing filling and sealing treatment, and applying a magnetic field outside the insulating injection molding ring 1 while filling and sealing to continuously expand the micro tightening piece, tightening the micro tightening piece, and tightening the insulating injection molding ring 1 and the stator from the inside to further tighten the flat wire;
s4, after encapsulation and solidification, twisting the end part of the flat wire along the circumferential direction, and finally, crimping the flat wire.
In step S3, the specific operation of the externally applied magnetic field is as follows: the magnetic field and the plurality of re-tightening strips 4 are controlled to be at the same height, and then the insulating injection molding ring 1 is controlled to continuously move along the radial direction along the lower edge of the insulating injection molding ring 1, so that the magnetic field generates opposite magnetic force to the two magnetic patches 5 on the opposite re-tightening strips 4, the edges of the micro-tightening strips are opened, the potting adhesive liquid enters the micro-tightening strips, after solidification, a stable internal supporting effect is achieved in the micro-tightening strips, the insulating injection molding ring 1 can stably extrude the flat wire ends after compression connection, and the two flat wire ends are stably contacted.
In addition, because the flat wire does not need to be welded, the height of the end part of the flat wire can be shortened compared with the prior art, in the embodiment, the size of the end face groove of the stator can be enlarged, the end part of the flat wire and the related crimping structure of the first embodiment can be directly crimped into the end face groove, even completely crimped into the end face groove, and are connected with a PCB circuit and glue injection molded, and at the moment, the flat wire is connected with the PCB circuit through a large closing device, wherein the PCB circuit is equivalent to one part of an electric control, the wire outlet end of the flat wire does not need to be connected with one phase or three phases of the electric control, can be directly and singly connected with the electric control, and is equivalent to being directly connected with any electric control.
The arrangement reduces relative current, reduces crimping risk relatively, and can be connected with an electric control at will, so that the flexibility of the flat wire motor is improved.
In summary, in flat wire crimping process, at first, carry out preliminary compaction spacing to two flat wire tip through just holding up ring 2, then cooperate insulating injection molding ring 1 and tight strip 4 again, carry out further compaction spacing to flat wire tip, compare in prior art directly through welding positioning, can make two flat wires contact relatively steadily evenly, effectively avoid the condition of unusual fever to can reduce the height of flat wire tip, make the axial length of motor also can shorten correspondingly, in addition, in the embedment process after compressing up, through the setting of externally applied magnetic field and making magnetic field circumference remove, can make little tight piece transversely expand, make vertically take up insulating injection molding ring 1, make the compaction spacing effect to the flat wire obtain further improvement, glue solution can directly enter into little tight piece in the embedment simultaneously, the glue solution of embedment solidifies the back, can directly support the little tight piece of expansion, make it to flat wire stable spacing.
Second embodiment:
in this embodiment, the following is added, and the torsion mode of the flat wire is changed after the encapsulation, specifically as follows:
in fig. 8, d represents copper bars, which represent the cured glue solution, the copper bars connected in series are fixedly embedded in the insulation injection molding ring 1, the conical surface ends of the flat wires extend out of the insulation injection molding ring 1, and the flat wire ends of the insulation injection molding ring 1 are twisted outwards in the radial direction and are in contact with the copper bars in the insulation injection molding ring 1.
The circumferential torsion of the flat wire after encapsulation is changed into radial torsion in the prior art, and the torsion amplitude is reduced, so that the torsion force born by the flat wire is reduced, and the flat wire can be further protected, and can work more stably in the motor.
The scope of protection of the above-described embodiments employed in the present application is not limited to the above-described embodiments, and various changes made by those skilled in the art without departing from the spirit of the present application are still within the scope of protection of the present invention.
Claims (8)
1. A welding-free motor flat wire crimping structure is characterized in that: including a plurality of cover establish just holding ring (2) outside many pairs of flat wires respectively, a plurality of just holding ring (2) all are equipped with insulating ring (1) of moulding plastics outward, insulating ring (1) of moulding plastics is the annular structure coaxial with the motor, it has a plurality of spacing grooves to open on the insulating ring (1) of moulding plastics, just holding ring (2) match with the spacing groove, flat wire is connected with motor stator, be connected with a plurality of tight strips (4) again between insulating ring (1) of moulding plastics and the motor stator, just holding ring (2) include two conical surface cover lamella (21) and a plurality of pre-compaction rope (22) of fixed connection between two conical surface cover lamella (21) are close to each other, tight strip (4) of again include two inelastic ropes (41) of fixed connection on motor stator and insulating ring (1) respectively and connect the slightly tight piece between the tip that two inelastic ropes (41) are close to each other.
2. The welding-free motor flat wire crimping structure according to claim 1, wherein: the conical sleeve petals (21) are made of metal copper materials, the pre-pressing ropes (22) are of insulating elastic structures, and when the pre-pressing ropes (22) are in original length, the edges of the two conical sleeve petals (21) cannot be rounded.
3. The welding-free motor flat wire crimping structure according to claim 1, wherein: the outer surface of the flat wire end and the outer surface of the primary tightening ring (2) are both conical surface structures, the radial section of the flat wire end is semicircular, the flat wire end is matched with the inner wall of the primary tightening ring (2), and the diameter of one end of the conical surface structure, which faces the stator, is large.
4. The welding-free motor flat wire crimping structure according to claim 1, wherein: the micro-tightening piece comprises two vertical symmetrical hard pieces (422) and two left-right symmetrical outer arc elastic pieces (421), the edges of the outer arc elastic pieces (421) are fixed with the edges of the adjacent hard pieces (422), and the inelastic rope (41) movably penetrates through the adjacent hard pieces (422) and is fixedly connected with the inner wall of one of the outer arc elastic pieces (421).
5. The welding-free motor flat wire crimping structure of claim 4, wherein: the outer end of the outer arc spring piece (421) is fixedly connected with a magnetic patch (5), and the magnetic poles of one ends, close to each other, of the two magnetic patches (5) are identical.
6. The welding-free motor flat wire crimping process according to claim 5, wherein: the method comprises the following steps:
s1, firstly, peeling the end part of a flat wire, then pressing the end part of the flat wire into a semicircle, and crimping the non-conical surface end of the flat wire into an end surface groove of a stator;
s2, forming the end parts of the two flat wires into a finished round shape relatively, sleeving the primary tightening ring (2) outside the two flat wires, and pre-tightening the two flat wires by the primary tightening ring (2) at the moment to primarily limit the flat wires;
s3, an insulating injection molding ring (1) is sleeved outside the primary tightening ring (2), the insulating injection molding ring (1) is fixed with the stator through a re-tightening strip (4), then filling and sealing treatment is carried out, a magnetic field is externally applied to the outer side of the insulating injection molding ring (1) during filling and sealing, so that the micro tightening piece is continuously expanded, further tightening is carried out, and the insulating injection molding ring (1) and the stator are tensioned from the inside, so that further tightening of flat wires is realized;
s4, after encapsulation and solidification, twisting the end part of the flat wire along the circumferential direction, and finally, crimping the flat wire.
7. The welding-free motor flat wire crimping process according to claim 6, wherein: in the step S3, the specific operation of the externally applied magnetic field is as follows: the magnetic field and the plurality of re-tightening strips (4) are controlled to be at the same height, then the insulating injection molding ring (1) is controlled to continuously move along the lower edge of the insulating injection molding ring in the radial direction, so that the magnetic field can generate opposite magnetic force to the two magnetic patches (5) on the opposite re-tightening strips (4), the edges of the micro-tightening strips are opened, potting adhesive liquid enters the micro-tightening strips, after solidification, a stable internal supporting effect is achieved in the micro-tightening strips, the insulating injection molding ring (1) can stably extrude the flat wire ends after compression connection, and the two flat wire ends are in stable contact.
8. The welding-free motor flat wire crimping structure of claim 6, wherein: the copper bars connected in series are fixedly inlaid in the insulation injection molding ring (1), the conical surface ends of the flat wires extend out of the insulation injection molding ring (1) and are positioned at the end parts of the flat wires of the insulation injection molding ring (1) to twist outwards in the radial direction and contact with the copper bars in the insulation injection molding ring (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311162354.1A CN117375287B (en) | 2023-09-11 | 2023-09-11 | Welding-free motor flat wire crimping structure and crimping process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311162354.1A CN117375287B (en) | 2023-09-11 | 2023-09-11 | Welding-free motor flat wire crimping structure and crimping process |
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| CN117375287B CN117375287B (en) | 2024-04-02 |
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| JP6275275B2 (en) * | 2014-10-27 | 2018-02-07 | 三菱電機株式会社 | Coupling method, combined body, stator of rotating electric machine, and method of manufacturing stator of rotating electric machine |
| CN104393465A (en) * | 2014-12-03 | 2015-03-04 | 江苏雷特电机股份有限公司 | Crimping device for copper or aluminum flat wires |
| EP3261109A1 (en) * | 2016-06-22 | 2017-12-27 | HIS renewables GmbH | Fuse device and method for producing a fuse device |
| DE102021110075A1 (en) * | 2021-04-21 | 2022-10-27 | Nidec Motors & Actuators (Germany) Gmbh | Process for electrically contacting at least one enameled copper wire with a component of an electric motor, generator, sensor or electromagnet by means of a crimp connection and additional casting |
| CN216625481U (en) * | 2021-12-28 | 2022-05-27 | 卧龙电气驱动集团股份有限公司 | Aluminum wire motor |
| CN219287242U (en) * | 2022-11-10 | 2023-06-30 | 宇通客车股份有限公司 | Flat wire winding motor |
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