FR2555084A1 - Soldering aluminium wire to copper part - Google Patents

Soldering aluminium wire to copper part Download PDF

Info

Publication number
FR2555084A1
FR2555084A1 FR8318894A FR8318894A FR2555084A1 FR 2555084 A1 FR2555084 A1 FR 2555084A1 FR 8318894 A FR8318894 A FR 8318894A FR 8318894 A FR8318894 A FR 8318894A FR 2555084 A1 FR2555084 A1 FR 2555084A1
Authority
FR
France
Prior art keywords
sheath
aluminum
copper
wire
wires
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR8318894A
Other languages
French (fr)
Other versions
FR2555084B1 (en
Inventor
Alfred Bruno Mazzorana
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Societe de Paris et du Rhone SA
Original Assignee
Societe de Paris et du Rhone SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Societe de Paris et du Rhone SA filed Critical Societe de Paris et du Rhone SA
Priority to FR8318894A priority Critical patent/FR2555084B1/en
Priority to DE19843441440 priority patent/DE3441440A1/en
Priority to ES537779A priority patent/ES537779A0/en
Publication of FR2555084A1 publication Critical patent/FR2555084A1/en
Application granted granted Critical
Publication of FR2555084B1 publication Critical patent/FR2555084B1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K13/00—Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings; Disposition of current collectors in motors or generators; Arrangements for improving commutation
    • H02K13/04—Connections between commutator segments and windings
    • 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
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/0004—Resistance soldering
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00—Rotary current collectors, distributors or interrupters
    • H01R39/02—Details for dynamo electric machines
    • H01R39/32—Connections of conductor to commutator segment
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
    • H01R4/62—Connections between conductors of different materials; Connections between or with aluminium or steel-core aluminium conductors
    • H01R4/625—Soldered or welded connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/06—Manufacture of commutators

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Secondary Cells (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

Al wire is soldered to a Cu part by locating the wire in a Cu sheath (4), arranging a strip of hard solder (5) between the sheathed wire and the Cu part (2) and bringing a profiled electrode (6) onto the sheathed wire on the side opposite to the Cu part such that secure bonding is accomplished through diffusion of the Cu and Al in liquid phase.

Description

La présente invention est relative à un procédé de soudure d'au moins un fil d'aluminium sur une pièce en cuivre en vue de la realisa- tion d'un collecteur de machine électrique tournante dont le bobinage du rotor est effectué au moyen de fils d'aluminium. Bien entenduscette application n'est pas limitative du procédé suivant l'invention qui peut etre utilisé pour tout autre fabrication. The present invention relates to a method for soldering at least one aluminum wire to a copper piece with a view to producing a collector of a rotary electrical machine, the rotor winding of which is carried out by means of wires. aluminum. Of course, this application is not limiting of the process according to the invention which can be used for any other manufacturing.

On sait que dans les machines électriques tournantes et plus particulièrementl bien que non exclusivement, dans les démarreurs électriques pour moteur à combustion interne, on a de plus en plus tendance à bobiner les induits au moyen de fil d'aluminium en vue de diminuer l'inertie de cette pièce tournante. L'inconvénient majeur de l'utilisation d'un fil d'aluminium pour l'exécution du bobinage de l'induit d'un moteur à courant continu réside dans la difficulté de soudage des extrémité des bobines sur les lames du collecteur. En effet, la soudure de l'aluminium sur le cuivre est très délicate du fait de l'écart sensible de température de fusion de ces deux métaux. It is known that in rotating electrical machines and more particularly, although not exclusively, in electric starters for internal combustion engines, there is an increasing tendency to wind the armatures by means of aluminum wire in order to reduce the inertia of this rotating part. The major drawback of using aluminum wire for the winding of the armature of a DC motor lies in the difficulty of welding the ends of the coils on the blades of the collector. Indeed, the welding of aluminum on copper is very delicate because of the significant difference in melting temperature of these two metals.

Les perfectionnements qui font l'objet de la présente invention visent à permettre de réaliser aisément la soudure d'un ou plusieurs fils d'aluminium sur une pièce en cuivre et plus particulièrement sur la lame d'un collecteur de machine électrique tournante. The improvements which are the subject of the present invention aim to allow the easy welding of one or more aluminum wires on a copper part and more particularly on the blade of a collector of a rotating electric machine.

Conformément à l'invention,on onutilise une gaine de cuivre dans laquelle les fils correspondants des bobines sont engagés, puis on interpose un ruban de brasure entre la gaine et la pièce à souder, enfin on applique contre la gaine,,# l'oppose de la pièce, une électrode de forme appropriée en vue d'assurer la brasure de la gaine de cuivre avec la pièce de même métal, l'élévation de température provoquant la fusion de l'aluminium qui, par diffusion à l'état liquide avec le cuivre constituant la gaine, provoque un assujettissement entre celle-ci et les fils d'aluminium. In accordance with the invention, a copper sheath is used in which the corresponding wires of the coils are engaged, then a brazing strip is interposed between the sheath and the piece to be welded, finally it is applied against the sheath, # the opposite of the part, an electrode of suitable shape in order to ensure the soldering of the copper sheath with the part of the same metal, the rise in temperature causing the melting of the aluminum which, by diffusion in the liquid state with the copper constituting the sheath causes subjection between the latter and the aluminum wires.

Le dessin annexé, donné à titre d'exemple, permettra de mieux comprendre l'invention, les caractéristiques qu'elle présente et les avantages qu1elle est susceptible de procurer
Fig. 1 montre partiellement la pièce de cuivre sur laquelle doivent être soudes deux fils par mise en oeuvre du procédé suivant l'invention. On y a également représenté l'électrode qui permettra la réalisation de ce procédé.The appended drawing, given by way of example, will allow a better understanding of the invention, the characteristics which it has and the advantages which it is likely to provide.
Fig. 1 partially shows the copper piece on which two wires must be welded by implementing the method according to the invention. There is also shown the electrode which will allow the realization of this process.

Fig. 2 en est une coupe transversale. Fig. 2 is a cross section.

Fig. 3 est une vue semblable à celle de fig. 1, mais illustrant l'électrode à sa position d'appui contre la gaine des deux fils. Fig. 3 is a view similar to that of FIG. 1, but illustrating the electrode in its position of support against the sheath of the two wires.

Fig. 4 en est une coupe transversale. Fig. 4 is a cross section.

Le procédé suivant l'invention est destiné à permettre l'assujettissement d'au moins un fil d'aluminium 1, mais de manière plus générale de deux de ces fils, avec une pièce de cuivre et plus particulièrement avec l'une des lames de cuivre 2 d'un collecteur 3. Pour mettre en oeuvre ce procédé, on utilise comme illustré en fig. 1 et 2 une gaine allongée 4 réalisée en cuivre et dans laquelle on loge les deux fils 1 dénudés ou non. Cette gaine peut ne pas comporter de fond 4a de manière à former un simple manchon. Après la mise en place des deux fils dans la gaine 4, on place un ruban de brasure 5 sur la face extérieure 2a de la lame 2 considérée qui se trouve orientée de manière que ladite face soit en gros horizontale. La gaine 4 est ensuite posée sur le ruban 5. The method according to the invention is intended to allow the securing of at least one aluminum wire 1, but more generally of two of these wires, with a piece of copper and more particularly with one of the blades of copper 2 of a collector 3. To implement this process, use is made as illustrated in fig. 1 and 2 an elongated sheath 4 made of copper and in which the two wires 1, bare or not, are housed. This sheath may not have a bottom 4a so as to form a simple sleeve. After the two wires have been placed in the sheath 4, a brazing tape 5 is placed on the outer face 2a of the blade 2 considered which is oriented so that said face is roughly horizontal. The sheath 4 is then placed on the ribbon 5.

On observe en fig. 2 que la gaine 4 dépasse de part et d'autre de la largeur du collecteur 3. Une électrode 6 dont l'extrémité inférieure comporte une forme concave est ensuite appliquée sous pression contre la gaine 4, tandis qu'un courant électrique est établi en vue d'échauffer l'ensemble de la gaine 4, des fils 1, de la brasure 5 et de la lame.We observe in fig. 2 that the sheath 4 protrudes on either side of the width of the collector 3. An electrode 6, the lower end of which has a concave shape, is then applied under pressure against the sheath 4, while an electric current is established in view of heating the entire sheath 4, the wires 1, the solder 5 and the blade.

On observe que l'extremite inférieure de l'electrode est réalisée sous la forme d'un chapeau de gendarme, afin qu'elle vienne coiffer la gaine 4 en concentrant le passage du courant des deux côtés de celle-ci, comme illustre en fig. 3. En effet, il est nécessaire que l'elevation de température soit ressentie de manière sensible le plus près possible de la brasure 5. les parties basses 6a, 6b de l'électrode remplissent ce rôle, tandis que la partie creuse 6c déforme la gaine du fait de la force exercée dans le sens de la flèche F en direction du collecteur 3.L'intensité du courant traversant la gaine, les fils, la brasure et la lame 2 est telle qu'une élévation sensible de température a lieu afin d'une part de fondre les deux fils d'aluminium à l'intérieur de la gaine et d'autre part de provoquer la fusion de la brasure 5 en vue de la soudure de ladite gaine sur la face 2a de la lame 2.It is observed that the lower end of the electrode is produced in the form of a gendarme's cap, so that it comes to cover the sheath 4 by concentrating the current flow on both sides of it, as illustrated in fig . 3. In fact, it is necessary for the temperature rise to be felt appreciably as close as possible to the solder 5. the low parts 6a, 6b of the electrode fulfill this role, while the hollow part 6c deforms the sheath due to the force exerted in the direction of arrow F in the direction of the collector 3. The intensity of the current passing through the sheath, the wires, the solder and the blade 2 is such that a significant rise in temperature takes place in order on the one hand to melt the two aluminum wires inside the sheath and on the other hand to cause the solder 5 to merge with a view to welding said sheath on the face 2a of the blade 2.

La fusion des deux fils d'aluminium est contenue par la gaine 4 qui évite l'ecoulement de l'aluminium liquide. Puis, la température continuant de s'élever, on atteint le point de fusion du ruban de brasure choisi plus haut que celui de l'aluminium, c'est-à-dire aux alentours de 710 , de telle sorte que la soudure de la gaine, par rapport à la lame 2 s'effectue. A l'intérieur de la gaine il se produit pendant ce temps un phénomène de diffusion en phase liquide entre le cuivre et l'aluminium, de telle sorte qu'on obtient un composé aluminium-cuivre sur une grande partie de la longueur de la gaine, ce composé assurant une liaison étroite entre la gaine et les deux fils. The fusion of the two aluminum wires is contained by the sheath 4 which prevents the flow of liquid aluminum. Then, the temperature continuing to rise, we reach the melting point of the brazing tape chosen higher than that of aluminum, that is to say around 710, so that the welding of the sheath, relative to the blade 2 takes place. Inside the sheath, during this time, a liquid phase diffusion phenomenon occurs between the copper and the aluminum, so that an aluminum-copper compound is obtained over a large part of the length of the sheath. , this compound ensuring a close connection between the sheath and the two wires.

Pour contenir de manière plus certaine l'aluminium en fusion à l'intérieur de la gaine, on peut faire comporter à celle-ci un fond 4a de manière qu'elle se présente sous la forme d'une poche. To contain the molten aluminum more reliably inside the sheath, the latter can be made to have a bottom 4a so that it is in the form of a pocket.

La gaine peut aussi affecter la forme d'un U destiné à coiffer chacune des deux extrémités des fils 1. The sheath can also take the form of a U intended to cover each of the two ends of the wires 1.

Dans tous les cas, la distance d suivant laquelle l'ouverture de la gaine ou de la#poche dépasse au-delà de la face intérieure 2b de chacune des lames du collecteur 3 (c > est-à-dire celle qui fait face à l'origine des fils) est telle que l'aluminium en fusion ne peut pas s'échapper à ce niveau car dans la zone correspondante les fils ne sont pas en fusion. La distance suivant laquelle l'extremite opposée de la gaine dépasse en deçà de la face externe 2c du collecteur est choisie afin que l'aluminium en fusion ne s'écoule pratiquement pas par cette extrémité quand celle-ci est ouverte. In all cases, the distance d according to which the opening of the sheath or of the # pocket exceeds beyond the internal face 2b of each of the blades of the collector 3 (c> that is to say that which faces the origin of the wires) is such that the molten aluminum cannot escape at this level because in the corresponding zone the wires are not molten. The distance at which the opposite end of the sheath projects beyond the external face 2c of the collector is chosen so that the molten aluminum practically does not flow through this end when the latter is open.

Le procédé suivant l'invention, permet ainsi de réaliser d'une manière simple et efficace la soudure d'un ou de plusieurs fils d'aluminium par rapport à un fil de cuivre. The method according to the invention thus makes it possible to carry out in a simple and effective manner the welding of one or more aluminum wires with respect to a copper wire.

Il doit d'ailleurs être entendu que la description qui précède nota été donnée qu'a titre d'exemple et qu'elle ne limite nullement le domaine de l'invention dont on ne sortirait pas en remplaçant les détails d'exécution décrits par tous autres équivalents.  It should moreover be understood that the foregoing description has been given only by way of example and that it in no way limits the field of the invention from which one would not depart by replacing the execution details described by all other equivalents.

Claims (7)

REVENDICATIONS 1. Procédé de soudure d'au moins un fil d'aluminium (1) sur une pièce en cuivre (2), caractérisé en ce qu'il consiste 1. A method of welding at least one aluminum wire (1) on a copper part (2), characterized in that it consists - à engager l'extremite du fil (1) dans une gaine de cuivre (4) - to engage the end of the wire (1) in a copper sheath (4) - à placer un ruban (5) de brasure entre la gaine (4) et la pièce (2) ; - placing a brazing tape (5) between the sheath (4) and the part (2); - et à appliquer contre la gaine (4) à l'oppose de la pièce (2) une électrode (6) de forme appropriée en vue d'assurer la brasure de la gaine (4) avec la pièce (2) de cuivre et à provoquer l'assujettissement du fil (1) et de la gaine (4) par diffusion en phase liquide entre le cuivre et l'aluminium. - And to apply against the sheath (4) opposite the part (2) an electrode (6) of suitable shape in order to ensure the soldering of the sheath (4) with the part (2) of copper and causing the wire (1) and the sheath (4) to be subjected by liquid phase diffusion between the copper and the aluminum. 2. Procédé suivant la revendication 1, caractérisé en ce que l'electrode (6) affecte la forme d'un chapeau de gendarme concave. 2. Method according to claim 1, characterized in that the electrode (6) takes the form of a concave policeman's hat. 3. Procédé suivant la revendication 1, caractérisé en ce que la température de fusion de la brasure est choisie supérieure à celle de l'aluminium. 3. Method according to claim 1, characterized in that the melting temperature of the solder is chosen to be higher than that of aluminum. 4. Procédé suivant la revendication 1, caractérisé en ce que la gaine (4) comporte un fond (4a) afin de mieux contenir l'aluminium à l'état liquide. 4. Method according to claim 1, characterized in that the sheath (4) has a bottom (4a) to better contain the aluminum in the liquid state. 5. Procédé suivant la revendication 1, caractérisé en ce que la gaine (4) affecte une forme en U. 5. Method according to claim 1, characterized in that the sheath (4) has a U shape. 6. Procédé suivant l'une quelconque des revendications 1 à 5, caractérisé en ce que la gaine (4) présente une longueur supérieure à la largeur de la pièce en cuivre et dépasse de part et d'autre de celle-ci. 6. Method according to any one of claims 1 to 5, characterized in that the sheath (4) has a length greater than the width of the copper part and protrudes on either side thereof. 7. Machine électrique tournante, caractérisée en ce que la soudure des conducteurs en aluminium (1) de l'induit de cette machine sur les lames de son collecteur est réalisée par mise en oeuvre du procédé suivant l'une quelconque des revendications 1 à 6.  7. Rotating electric machine, characterized in that the welding of the aluminum conductors (1) of the armature of this machine on the blades of its collector is carried out by implementing the method according to any one of claims 1 to 6 .
FR8318894A 1983-11-23 1983-11-23 METHOD OF WELDING AT LEAST ONE ALUMINUM WIRE ON A COPPER WORKPIECE Expired FR2555084B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR8318894A FR2555084B1 (en) 1983-11-23 1983-11-23 METHOD OF WELDING AT LEAST ONE ALUMINUM WIRE ON A COPPER WORKPIECE
DE19843441440 DE3441440A1 (en) 1983-11-23 1984-11-13 Method of joining aluminium wire to a copper part by welding or soldering
ES537779A ES537779A0 (en) 1983-11-23 1984-11-20 ALUMINUM AND COPPER WELDING PROCEDURE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8318894A FR2555084B1 (en) 1983-11-23 1983-11-23 METHOD OF WELDING AT LEAST ONE ALUMINUM WIRE ON A COPPER WORKPIECE

Publications (2)

Publication Number Publication Date
FR2555084A1 true FR2555084A1 (en) 1985-05-24
FR2555084B1 FR2555084B1 (en) 1987-05-22

Family

ID=9294564

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8318894A Expired FR2555084B1 (en) 1983-11-23 1983-11-23 METHOD OF WELDING AT LEAST ONE ALUMINUM WIRE ON A COPPER WORKPIECE

Country Status (3)

Country Link
DE (1) DE3441440A1 (en)
ES (1) ES537779A0 (en)
FR (1) FR2555084B1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0280386A1 (en) * 1987-01-21 1988-08-31 Johnson Electric S.A. Commutator connection in an electric motor
CN100494671C (en) * 2006-09-12 2009-06-03 刘本成 Composite electromagnetic material engine
EP2066006A3 (en) * 2007-11-30 2013-11-13 Robert Bosch GmbH Electric machine
ITUB20160001A1 (en) * 2016-01-29 2017-07-29 Nidec Sole Motor Corp S R L ROTOR FOR UNIVERSAL ELECTRIC MOTOR AND PROCEDURE FOR THE REALIZATION OF THE SAME
US20170338611A1 (en) * 2014-12-10 2017-11-23 Robert Bosch Gmbh Method for producing an electrically conductive connection between a copper component and an aluminum component
US11387581B2 (en) * 2017-06-21 2022-07-12 Furukawa Electric Co., Ltd. Electric wire connection structure

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6255878A (en) * 1985-09-02 1987-03-11 株式会社日立製作所 Terminal for welding fine wire and welding of fine wire using the same
DE4118166C3 (en) * 1991-06-03 1995-10-26 Siemens Ag Welding method for connecting a winding wire of a coil to a connection element and metal sleeve for use in this method
JP2001269772A (en) * 2000-03-27 2001-10-02 Showa Denko Kk Method for joining metal and metal and joined product
US7814641B2 (en) 2001-01-09 2010-10-19 Black & Decker Inc. Method of forming a power tool
US7096566B2 (en) 2001-01-09 2006-08-29 Black & Decker Inc. Method for making an encapsulated coil structure

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1048936A (en) * 1950-11-21 1953-12-24 Redmond Company Improvements to dynamo-electric machines
DE2723029A1 (en) * 1977-05-21 1978-11-30 Bosch Gmbh Robert Electrical connector for enamelled wires - accepts wire ends in metal sleeve together with layer of tin for crushing between welding electrodes
US4129744A (en) * 1976-08-02 1978-12-12 Rca Corporation Solder connection between copper and aluminum conductors
EP0027826A1 (en) * 1979-04-27 1981-05-06 Mitsubishi Denki Kabushiki Kaisha Method of connecting the leads of an armature coil to a commutator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1048936A (en) * 1950-11-21 1953-12-24 Redmond Company Improvements to dynamo-electric machines
US4129744A (en) * 1976-08-02 1978-12-12 Rca Corporation Solder connection between copper and aluminum conductors
DE2723029A1 (en) * 1977-05-21 1978-11-30 Bosch Gmbh Robert Electrical connector for enamelled wires - accepts wire ends in metal sleeve together with layer of tin for crushing between welding electrodes
EP0027826A1 (en) * 1979-04-27 1981-05-06 Mitsubishi Denki Kabushiki Kaisha Method of connecting the leads of an armature coil to a commutator

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0280386A1 (en) * 1987-01-21 1988-08-31 Johnson Electric S.A. Commutator connection in an electric motor
US4835430A (en) * 1987-01-21 1989-05-30 Johnson Electric Industrial Manufactory, Limited Commutator connection in an electric motor
CN100494671C (en) * 2006-09-12 2009-06-03 刘本成 Composite electromagnetic material engine
EP2066006A3 (en) * 2007-11-30 2013-11-13 Robert Bosch GmbH Electric machine
US20170338611A1 (en) * 2014-12-10 2017-11-23 Robert Bosch Gmbh Method for producing an electrically conductive connection between a copper component and an aluminum component
ITUB20160001A1 (en) * 2016-01-29 2017-07-29 Nidec Sole Motor Corp S R L ROTOR FOR UNIVERSAL ELECTRIC MOTOR AND PROCEDURE FOR THE REALIZATION OF THE SAME
US11387581B2 (en) * 2017-06-21 2022-07-12 Furukawa Electric Co., Ltd. Electric wire connection structure

Also Published As

Publication number Publication date
FR2555084B1 (en) 1987-05-22
DE3441440A1 (en) 1985-05-30
ES8600101A1 (en) 1985-10-16
ES537779A0 (en) 1985-10-16

Similar Documents

Publication Publication Date Title
FR2555084A1 (en) Soldering aluminium wire to copper part
FR2806532A1 (en) METHOD FOR CONNECTING THE SLIDES OF AN ELECTRODE TO A TERMINAL OF AN ELECTROCHEMICAL GENERATOR AND GENERATOR THEREFROM
FR2613884A1 (en) ELECTRIC MACHINE COMPRISING A PACKET OF SHEETS SUPPORTING A WINDING, AND METHOD FOR THE PRODUCTION THEREOF
FR2770626A1 (en) Heating driver's cabin of commercial vehicles rapidly
BE1011994A6 (en) Lamp reflector.
CH651150A5 (en) ELECTRIC RESISTANCE IN SHEET.
CA1248192A (en) Clamping element between an electric wire and a connector's contact
FR2490888A1 (en) Incandescent ignition plug for IC engines - uses two part heating element of different dimensions and materials one as heater and other as temp. sensitive current limiter
CH690091A5 (en) Method for welding hinge pins on the links, especially for forming the articulated links of a bracelet.
FR2518841A1 (en) ARMATURE FOR ROTATING ELECTRIC MACHINE
FR2531277A1 (en) Insulation-displacement contact
FR2877154A1 (en) IMPROVED DEVICE FOR PROTECTING ELECTRICAL DEVICES AGAINST OVERVOLTAGES
FR2682626A1 (en) Spot-welding electrode
FR2866990A1 (en) Metallic lead frame for switching unit of motor vehicle, has pair of branches for fixing fuse to frame through longitudinal ends of fuse, where each branch has free end with curve adapted to provide contact surface for welding with fuse
BE894971A (en) SINGLE PIECE FUSE CONDUCTOR FOR ELECTRICAL CIRCUIT BREAKERS
FR2548471A1 (en) PERFECTIONAL FRONT COLLECTOR
FR2579379A1 (en) Element for connecting an electrical conductor to a connector contact
FR2590349A3 (en) Method for fastening connection end pieces of flexible hoses, and flexible hoses obtained
EP4376273A1 (en) Electric machine with direct cooling of radial passages in the stator body
FR2493599A1 (en) BRAID JUNCTION BETWEEN TUNGSTEN FILAMENT AND CONDUSTER, AND PROCESS FOR PREPARATION
FR2795561A1 (en) Low voltage electrical cable/conductor bar connection having outer collar and inner nut with locking screw/end grip clamping cable against integral connector bar.
FR2608330A1 (en) Plug-in protection module for distribution frame cable head
CH322788A (en) Method of manufacturing a silicon rectifier, and silicon rectifier obtained by this method
CH479173A (en) Welding process of an insulated metal wire
BE449154A (en)

Legal Events

Date Code Title Description
ST Notification of lapse