EP0095957B1 - Electrical connector for insulated conductors - Google Patents

Electrical connector for insulated conductors Download PDF

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Publication number
EP0095957B1
EP0095957B1 EP83400984A EP83400984A EP0095957B1 EP 0095957 B1 EP0095957 B1 EP 0095957B1 EP 83400984 A EP83400984 A EP 83400984A EP 83400984 A EP83400984 A EP 83400984A EP 0095957 B1 EP0095957 B1 EP 0095957B1
Authority
EP
European Patent Office
Prior art keywords
terminal
wire
connector according
housing
conductor
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.)
Expired
Application number
EP83400984A
Other languages
German (de)
French (fr)
Other versions
EP0095957A1 (en
Inventor
Michael Delvallez
Xavier Pottier
Hervé Trian
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.)
Wilo Salmson France SAS
Original Assignee
Pompes Salmson SAS
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 Pompes Salmson SAS filed Critical Pompes Salmson SAS
Publication of EP0095957A1 publication Critical patent/EP0095957A1/en
Application granted granted Critical
Publication of EP0095957B1 publication Critical patent/EP0095957B1/en
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/75—Coupling devices for rigid printing circuits or like structures connecting to cables except for flat or ribbon cables
    • 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
    • H01R4/02—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
    • 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
    • H01R4/10—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • 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
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2416—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
    • H01R4/2445—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives

Definitions

  • the present invention relates to an electrical connector for insulated conductive wires. It finds application in the field of connection of wound dynamoelectric machines.
  • the set of coils therefore comprises a plurality of insulated conductive wires which must be electrically connected directly or not to the power supply in the case of a motor or to the load in the case of a generator.
  • the present invention provides an answer to these various imperatives, in particular by proposing a connector of an advantageous cost price and easily mountable by an automatic chain.
  • the invention proposes an electrical connector for windings of dynamoelectric machines for connecting thin, free insulated conductor wires to a printed circuit.
  • a connector includes electrically insulating support means which keep the insulated wires initially free and conductive lugs for connection by displacement of insulator at any point along the length of each wire and for connection to a printed circuit board inserted in the connector.
  • a connector according to the invention always comprises a first housing 1 which comprises an upper plate 5 and a lower plate 6.
  • a slot 7 made in the upper plate 5 and a slot 8 in the lower plate 6 make it possible to position the insulated conductive wire 4 to be connected.
  • a terminal 3 made of a conductive material suitably chosen according to mechanical and thermal requirements, is arranged in a second housing 2.
  • the terminal 3 comprises a first part 13 for connection of the insulated conductive wire 4 to the terminal 3 and a second part 14 for connection of the terminal 3 to a printed circuit not shown.
  • the second box 2 is inside the first box and includes means 16 for mechanical attachment to the first box.
  • the second housing has an upper plate 9 and a lower plate 10.
  • the second housing 2 can carry spacers 11 between two successive lugs 3 if the connector has many lugs of connection.
  • the connector can, at least for the two housings 1 and 2, be made of an insulating plastic material, the housings being obtained by molding.
  • Each terminal 3 includes a means 15 for fixing to the housing 2.
  • This fixing means can be of the snap-on type.
  • FIG 2 there is shown a first part 13 of a particular shape for making the connection of the terminal 3 to an insulated conductive wire 4.
  • the wire 4 being an insulated wire
  • the first part 13 of the terminal 3 has a flat part 18 connected by an elbow to a flat part 19.
  • the two flat parts 18 and 19 are in the plane of the drawing. This offset allows the insertion of the terminal assembly tool 3.
  • a part 20 allows to pass behind the wire 4.
  • a part 21 in a plane parallel to the first allows to start the covering the wire 4.
  • the insulated wires to be connected are mounted on the first housing 1 of FIG. 1.
  • the second housing 2 which carries as many lugs as there are wires to be connected, is fixed to the first housing 1 by snap-fastening.
  • the pods are of the form indicated in the figure 2-a.
  • a first bending operation folds the part 22.
  • a hot crimping operation connects the terminals to the insulated wires as described. With appropriate tools, these two operations can be carried out simultaneously.
  • the flat part 21 includes a boss (not shown) which allows the wire 4 to be retained when crimping when the terminal is arched.
  • the boss carried by the front 22 of the part 21 is folded down in front of the wire 4 which it traps between itself and the part 21.
  • the second part 14 of the terminal 3 has the function of connecting the terminal 3 to a track of the printed circuit.
  • a second part 14 is shown according to a first variant.
  • the front part of the terminal has an opening called a lyre 14 between the jaws of which a printed circuit 23, provided with a copper track whose position corresponds to that of the terminal in the connector, is introduced.
  • the mechanical and electrical contacts are established by friction of the lyre opening 14 on either side of the printed circuit 23, to the right of the track.
  • the tracks can be on one side or the other of the printed circuit 23. It is thus possible to alternate the tracks successively one on the upper face, the other on the lower face of the printed circuit board 23. It is also possible to make arrive at the same connection 14 a track on the upper face and a track on the lower face of the plate 23.
  • FIG 4 there is shown another alternative embodiment of the terminal where the second part 14 is of the lamella type.
  • the upper plate 9 of the second housing 2 which carries the terminal.
  • the terminal is twisted so as to be in a plane parallel to those occupied by the plate 9 and the printed circuit 25.
  • the terminal is arched in three successive bends 28 so as to form a resort 27.
  • Au level of the elbow 29 the distance between the spring 27 and the plate 9 is less than the thickness of the printed circuit 25.
  • the track 26 of the printed circuit 25, to be connected to the terminal associated with it in the connector is on the side of spring 27 so that the electrical contact is established. The connection of the printed circuit in the connector is therefore ensured when it is mounted on the connector.
  • the terminal 3 is rigidly held in the housing 2 at the rear of the housing 2 by a shoulder 31 which may include a housing for the part 13 of the terminal 3 on its edge, just like the underside of the plate 9 can , to the right of the previous housing, present the same housing on edge.
  • the terminal 3 can also be blocked at a second point by a spacer 15 fixed to the underside of the plate 9.
  • the terminal 3 comprises a first part 13 for connection to the insulated wire and a second part 14 for connection to the printed circuit
  • another technique for removing the insulation by hooking is used.
  • the terminal is made of a sheet, of brass for example, folded on the side 13 of the wire in two right angles.
  • a slot 33 which terminates on the two faces of the terminal makes it possible to maintain the wire in electrical contact with the terminal.
  • a housing 34 ensures the elasticity of the terminal. The edges of the slot 33 cut the insulation up to the conductive core of the insulated wire.
  • the return of the folding at two right angles makes it possible to form a spring-loaded terminal 27 the second part 14 of the terminal 3.
  • the upper part of the folding which carries means 32 for latching the terminal 3 in its housing of the housing 2 is flat . It is separated from the top of the spring 27 by a thickness slightly less than that of the printed circuit 25. By elasticity, contact is maintained between the track 26 and the top of the spring 27.
  • FIG. 6 a connector is shown according to the invention which uses lugs of the type of that of FIG. 5.
  • the first housing 1 carries eight insulated conductive wires. Connect to the printed circuit board 49.
  • the comb 50 of tracks 51-58 can be single or double sided.
  • the housing 1 comprising three spacers 38-40 the plate 49 carries three notches 59-61 which allow the embedding.
  • the second housing 2 has two parts, 101, 102, perpendicular to the wires, which can be pierced with similar not shown grooves and opposite those of the housing 1. As the housing 2 is introduced according to arrow 62, the grooves of the housing 1 and of the housing 2 are in opposite directions so as to block each wire. In addition, particularly for enameled winding wires of very small diameter, the housing 2 carries, not shown in the drawing, bearing surfaces which come to bear on each wire in the housing 1.
  • a known automatic machine places each terminal 41-48, as in FIG. 5, in the connector according to arrow 63, opposite arrow 62.
  • the wires suitably maintained, are therefore connected to the terminals 41-48.
  • the printed circuit board 49 is introduced into the terminals 41-48 so that each track 51-58 is connected to a terminal 41-48 which is associated with it.
  • the housing 2 carries fixing means, not shown, of each terminal 41-48 by snap-fastening.
  • An assembly of the connector according to the invention is therefore obtained, which can be described as follows. First of all, the insulated wires are installed in their grooves 35 of the housing 1. Then the housing 2 is mounted and snapped onto the studs 36, 37 of the housing 1 so that the wires are blocked. The terminal installation machine feeds each terminal 41-48 onto the wire reserved for it. Finally, the plate 49 is mounted by plugging into the lugs 41-48.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Description

La présente invention concerne un connecteur électrique pour fils conducteurs isolés. Elle trouve application dans le domaine de la connectique des machines dynamoélectriques bobinées.The present invention relates to an electrical connector for insulated conductive wires. It finds application in the field of connection of wound dynamoelectric machines.

Dans de telles machines, plusieurs bobines sont réunies mécaniquement sur un support comme une carcasse statorique. Elles comportent, chacune, plusieurs spires d'un fil conducteur isolé. Chaque bobine possède donc deux fils conducteurs isolés, l'un d'entrée de la bobine, l'autre de sortie de la bobine. L'ensemble des bobines comporte donc une pluralité de fils conducteurs isolés que l'on doit électriquement relier directement ou non à l'alimentation électrique dans le cas d'un moteur ou à la charge dans le cas d'une génératrice.In such machines, several coils are joined mechanically on a support like a stator carcass. They each have several turns of an insulated conductor wire. Each coil therefore has two insulated conductor wires, one at the input of the coil, the other at the output of the coil. The set of coils therefore comprises a plurality of insulated conductive wires which must be electrically connected directly or not to the power supply in the case of a motor or to the load in the case of a generator.

Pour des raisons industrielles bien connues, la construction de telles machines tend vers une automatisation complète de la chaîne, de fabrication. Dans le même temps, on cherche à réduire la durée de fabrication de chaque machine produite et les différents coûts des composants de la machine de façon à réduire le prix de revient.For well-known industrial reasons, the construction of such machines tends towards complete automation of the chain, of manufacturing. At the same time, it is sought to reduce the manufacturing time of each machine produced and the various costs of the components of the machine so as to reduce the cost price.

La présente invention apporte une réponse à ces différents impératifs, en particulier en proposant un connecteur d'un prix de revient avantageux et facilement montable par une chaîne automatique.The present invention provides an answer to these various imperatives, in particular by proposing a connector of an advantageous cost price and easily mountable by an automatic chain.

D'autre part, il est connu que les machines dynamoélectriques doivent, dans de nombreux domaines de la technique, avoir des configurations adaptables. Ainsi, un moteur doit pouvoir changer de vitesses, inverser de sens de rotation, etc. Pour celà, il est connu de monter un sélecteur ou un circuit particulier sur un circuit imprimé qui relie les fils conducteurs isolés du bobinage à l'alimentation ou à la charge électrique. La présente invention apporte une solution au problème de la connexion des fils conducteurs isolés du bobinage au circuit imprime adaptateur. Dans le document FR - A - 2 290 768, on décrit un connecteur pour un ruban de conducteurs isolés. L'homme de métier connaît l'usage classique de ce montage dans les machines informatiques et sait qu'il met à profit la solidité mécanique et la cohésion du câble plat pour fonctionner. Ce montage n'est pas exploitable pour des fils isolés libres les uns des autres. De plus, l'invention s'applique à des fils de bobinage électriques qui sont fins et seulement recouverts d'un émaillage.On the other hand, it is known that dynamoelectric machines must, in many fields of technology, have adaptable configurations. Thus, a motor must be able to change gears, reverse direction of rotation, etc. For this, it is known to mount a selector or a particular circuit on a printed circuit which connects the conductive wires isolated from the winding to the power supply or to the electrical load. The present invention provides a solution to the problem of connecting the conductive wires isolated from the winding to the printed circuit adapter. Document FR-A-2 290 768 describes a connector for a strip of insulated conductors. A person skilled in the art knows the conventional use of this assembly in computer machines and knows that he takes advantage of the mechanical strength and the cohesion of the flat cable to operate. This assembly cannot be used for insulated wires which are free from each other. In addition, the invention applies to electrical winding wires which are fine and only covered with enamel.

Dans le document US - A - 3 221 288, on décrit un connecteur de fils isolés libres les uns des autres à un circuit imprimé. Mais chaque fil est muni d'une cosse sertie à son extrémité dénudée. Un fil émaillé ne pourrait accepter une telle manipulation.Document US-A-3,221,288 describes a connector of insulated wires free from each other to a printed circuit. But each wire is provided with a terminal crimped at its stripped end. An enameled wire could not accept such manipulation.

Pour remédier à ces inconvénients de l'art antérieur l'invention propose un connecteur électrique pour bobinages de machines dynamoélectriques pour relier des fils fins conducteurs isolés libres à un circuit imprimé. Un tel connecteur comporte des moyens de support électriquement isolant qui maintiennent les fils isolés initialement libres et des cosses conductrices de connexion par déplacement d'isolant en un point quelconque de la longueur de chaque fil et de connexion à une plaquette de circuit imprimé insérée dans le connecteur.To overcome these drawbacks of the prior art, the invention proposes an electrical connector for windings of dynamoelectric machines for connecting thin, free insulated conductor wires to a printed circuit. Such a connector includes electrically insulating support means which keep the insulated wires initially free and conductive lugs for connection by displacement of insulator at any point along the length of each wire and for connection to a printed circuit board inserted in the connector.

D'autres caractéristiques et avantages apparaîtront dans la suite de la description avec les figures qui sont:

  • - la figure 1: un schéma général d'un connecteur selon l'invention,
  • - la figure 2: des schémas de deux phases du montage d'une cosse selon l'invention,
  • - la figure 3: un schéma d'une première cosse selon l'invention,
  • - la figure 4: un schéma d'une seconde cosse selon l'invention,
  • - la figure 5: un schéma dune troisième cosse selon l'invention,
  • - la figure 6: un schéma dun connecteur utilisant les cosses de la figure 5.
Other characteristics and advantages will appear in the following description with the figures which are:
  • FIG. 1: a general diagram of a connector according to the invention,
  • FIG. 2: diagrams of two phases of the mounting of a terminal according to the invention,
  • FIG. 3: a diagram of a first terminal according to the invention,
  • FIG. 4: a diagram of a second terminal according to the invention,
  • FIG. 5: a diagram of a third terminal according to the invention,
  • - Figure 6: a diagram of a connector using the lugs of Figure 5.

A la figure 1, un connecteur selon l'invention comprend toujours un premier boîtier 1 qui comporte une plaque supérieure 5 et une plaque inférieure 6. D'un même coté, représenté à l'arrière du boîtier 1 sur la figure 1, une fente 7 pratiquée dans la plaque supérieure 5 et une fente 8 dans la plaque inférieure 6 permettent de positionner le fil conducteur isolé 4 à connecter.In FIG. 1, a connector according to the invention always comprises a first housing 1 which comprises an upper plate 5 and a lower plate 6. On the same side, shown at the rear of the housing 1 in FIG. 1, a slot 7 made in the upper plate 5 and a slot 8 in the lower plate 6 make it possible to position the insulated conductive wire 4 to be connected.

Pour celà, une cosse 3, réalisée en un matériau conducteur convenablement choisi en fonction des impératifs mécaniques et thermiques, est disposée dans un second boîtier 2. La cosse 3 comporte une première partie 13 de connexion du fil conducteur isolé 4 à la cosse 3 et une seconde partie 14 de connexion de la cosse 3 à un circuit imprimé non représenté.For this, a terminal 3, made of a conductive material suitably chosen according to mechanical and thermal requirements, is arranged in a second housing 2. The terminal 3 comprises a first part 13 for connection of the insulated conductive wire 4 to the terminal 3 and a second part 14 for connection of the terminal 3 to a printed circuit not shown.

Le second boitier 2 est intérieur au premier boîtier et comporte des moyens 16 de fixation mécanique au premier boîtier. Le second boîtier comporte une plaque supérieure 9 et une plaque inférieure 10. D'autre part, pour des raisons de rigidité et de tenue mécanique, le second boîtier 2 peut porter des entretoises 11 entre deux cosses 3 successives si le connecteur comporte de nombreuses cosses de connexion. Le connecteur peut, au moins pour les deux boîtiers 1 et 2, être réalisé en une matière plastique isolante, les boîtiers étant obtenus par moulage.The second box 2 is inside the first box and includes means 16 for mechanical attachment to the first box. The second housing has an upper plate 9 and a lower plate 10. On the other hand, for reasons of rigidity and mechanical strength, the second housing 2 can carry spacers 11 between two successive lugs 3 if the connector has many lugs of connection. The connector can, at least for the two housings 1 and 2, be made of an insulating plastic material, the housings being obtained by molding.

Chaque cosse 3 comporte un moyen 15 de fixation au boîtier 2. Ce moyen de fixation peut être du type à encliquetage.Each terminal 3 includes a means 15 for fixing to the housing 2. This fixing means can be of the snap-on type.

A la figure 2, on a représenté une première partie 13 d'une forme particulière pour réaliser la connexion de la cosse 3 à un fil 4 conducteur isolé. En effet, le fil 4 étant un fil isolé, il faut qu'au montage de la cosse 3-sur le fil 4, l'isolant soit localement arraché pour que le contact électrique soit établi. Dans un premier mode de réalisation, la première partie 13 de la cosse 3 comporte une partie plane 18 reliée par un coude à une partie plane 19. Les deux parties planes 18 et 19 sont dans le plan du dessin. Ce déport permet l'introduction de l'outil de montage de la cosse 3. Puis dans le plan perpendiculaire au plan du dessin, une partie 20 permet de passer derrière le fil 4. Une partie 21 dans un plan parrallèle au premier permet de commencer l'entourgage du fil 4. Cette configuration, représentée à la Figure 2a, est celle de la cosse avant que la connexion de la première partie de la cosse 3 soit réalisée.In Figure 2, there is shown a first part 13 of a particular shape for making the connection of the terminal 3 to an insulated conductive wire 4. Indeed, the wire 4 being an insulated wire, it is necessary that when mounting the terminal 3-on the wire 4, the insulator is locally torn off so that the electrical contact is established. In a first embodiment, the first part 13 of the terminal 3 has a flat part 18 connected by an elbow to a flat part 19. The two flat parts 18 and 19 are in the plane of the drawing. This offset allows the insertion of the terminal assembly tool 3. Then in the plane perpendicular to the drawing plane, a part 20 allows to pass behind the wire 4. A part 21 in a plane parallel to the first allows to start the covering the wire 4. This configuration, shown in Figure 2a, is that of the terminal before the connection of the first part of the terminal 3 is made.

A la Figure 2b, après l'insertion de la cosse 3 derrière le fil 4 à connecter, la partie allongée 21 est coudée en une deuxième partie 22 de façon à réaliser l'entourage du fil isolé 4. Puis, deux électrodes de bonne résistance mécanique sont appliquées de part et d'autre du fil isolé 4 sur les parties 20 et 22. Une pression mécanique est exercée en même temps que le courant est établi. On exerce ainsi un échauffement local de l'isolant qui s'évapore. De plus, l'action mécanique réalise un sertissage de la première partie 13 sur le fil 4 de la figure 1.In Figure 2b, after the insertion of the terminal 3 behind the wire 4 to be connected, the elongated part 21 is bent into a second part 22 so as to surround the insulated wire 4. Then, two electrodes of good resistance mechanical are applied on either side of the insulated wire 4 on the parts 20 and 22. A mechanical pressure is exerted at the same time as the current is established. There is thus a local heating of the insulating material which evaporates. In addition, the mechanical action creates a crimp of the first part 13 on the wire 4 of FIG. 1.

Au montage du connecteur selon l'invention, les fils isolés à connecter sont montées sur le premier boîtier 1 de la figure 1. Puis le second boîtier 2, qui porte autant de cosses qu'il y a de fils à connecter est fixé au premier boîtier 1 par encliquetage. Les cosses sont de la forme indiquée à la figure 2-a. Puis une première opération de cambrage réalise la pliure de la partie 22. Enfin une opération de sertissage à chaud vient réaliser la connexion des cosses aux fils isolés tel qu'il a été décrit. Avec un outillage approprié, ces deux opérations peuvent être réalisées simultanément. Dans une variante d'exécution, la partie plane 21 comporte un bossage non représenté qui permet de retenir le fil 4 au sertissage quand la cosse est cambrée. Le bossage porte par l'avant 22 de la partie 21 est rabattu devant le fil 4 qu'il emprisonne entre lui et la partie 21. Ainsi, on évite quand le pressage par électrodes a lieu que le fil 4 n'ait tendance à sortir de la cosse 3.When mounting the connector according to the invention, the insulated wires to be connected are mounted on the first housing 1 of FIG. 1. Then the second housing 2, which carries as many lugs as there are wires to be connected, is fixed to the first housing 1 by snap-fastening. The pods are of the form indicated in the figure 2-a. Then a first bending operation folds the part 22. Finally, a hot crimping operation connects the terminals to the insulated wires as described. With appropriate tools, these two operations can be carried out simultaneously. In an alternative embodiment, the flat part 21 includes a boss (not shown) which allows the wire 4 to be retained when crimping when the terminal is arched. The boss carried by the front 22 of the part 21 is folded down in front of the wire 4 which it traps between itself and the part 21. Thus, it is avoided when the pressing by electrodes takes place that the wire 4 does not tend to come out of the pod 3.

La seconde partie 14 de la cosse 3 a pour fonction de connecter la cosse 3 à une piste du circuit imprimé. A la figure 3, on a représenté une seconde partie 14 selon une première variante. La partie avant de la cosse comporte une ouverture dite lyre 14 entre les mors de laquelle un circuit imprimé 23, muni d'une piste de cuivre dont la position correspond à celle de la cosse dans le connecteur, est introduit. Les contacts mécanique et électrique sont établis par friction de l'ouverture lyre 14 de part et d'autre du circuit imprimé 23, au droit de la piste. Il est possible d'utiliser avec une partie lyre 14 un circuit imprimé simple ou double face. Ainsi les pistes peuvent être dun coté ou de l'autre du circuit imprimé 23. On peut ainsi alterner les pistes successivement l'une sur la face supérieure, l'autre sur la face inférieure de la plaquette de circuit imprimé 23. On peut aussi faire arriver à la même connexion 14 une piste sur la face supérieure et une piste sur la face inférieure de la plaquette 23.The second part 14 of the terminal 3 has the function of connecting the terminal 3 to a track of the printed circuit. In Figure 3, a second part 14 is shown according to a first variant. The front part of the terminal has an opening called a lyre 14 between the jaws of which a printed circuit 23, provided with a copper track whose position corresponds to that of the terminal in the connector, is introduced. The mechanical and electrical contacts are established by friction of the lyre opening 14 on either side of the printed circuit 23, to the right of the track. It is possible to use with a moving part 14 a single or double-sided printed circuit. Thus the tracks can be on one side or the other of the printed circuit 23. It is thus possible to alternate the tracks successively one on the upper face, the other on the lower face of the printed circuit board 23. It is also possible to make arrive at the same connection 14 a track on the upper face and a track on the lower face of the plate 23.

A la figure 4, on a représenté une autre variante d'exécution de la cosse où la seconde partie 14 est du type à lamelle. On a représenté la plaque supérieure 9 du second boîtier 2 qui porte la cosse. Après la première partie 13, la cosse est vrillée de façon à être dans un plan parrallèle à ceux occupés par la plaque 9 et le circuit imprimé 25. Puis la cosse est cambrée en trois coudes successifs 28 de façon à former un resort 27. Au niveau du coude 29, la distance entre le ressort 27 et la plaque 9 est inférieure à l'épaisseur du circuit imprimée 25. La piste 26 du circuit imprimé 25, à connecter à la cosse qui lui est associé dans le connecteur est du coté de ressort 27 de façon à ce que le contact électrique soit établi. La connexion du circuit imprimé dans le connecteur est donc assurée à son montage sur le connecteur.In Figure 4, there is shown another alternative embodiment of the terminal where the second part 14 is of the lamella type. There is shown the upper plate 9 of the second housing 2 which carries the terminal. After the first part 13, the terminal is twisted so as to be in a plane parallel to those occupied by the plate 9 and the printed circuit 25. Then the terminal is arched in three successive bends 28 so as to form a resort 27. Au level of the elbow 29, the distance between the spring 27 and the plate 9 is less than the thickness of the printed circuit 25. The track 26 of the printed circuit 25, to be connected to the terminal associated with it in the connector is on the side of spring 27 so that the electrical contact is established. The connection of the printed circuit in the connector is therefore ensured when it is mounted on the connector.

D'autre part, le circuit imprimé 25 venant se loger entre le ressort 27 et la plaque isolante 9 du boîtier 2, seules des plaquettes "simple face" de circuit imprimée sont utilisables. Enfin, la cosse 3 est rigidement tenue dans le boîtier 2 à l'arrière du boîtier 2 par un épaulement 31 qui peut comporter un logement de la partie 13 de la cosse 3 sur sa tranche, tout comme la face inférieure de la plaque 9 peut, au droit du logement précédent, présenter le même logement sur tranche. La cosse 3 peut être aussi bloquée en un second point par une entretoise 15 fixée à la face inférieure de la plaque 9.On the other hand, the printed circuit 25 being received between the spring 27 and the insulating plate 9 of the housing 2, only "single-sided" printed circuit boards are usable. Finally, the terminal 3 is rigidly held in the housing 2 at the rear of the housing 2 by a shoulder 31 which may include a housing for the part 13 of the terminal 3 on its edge, just like the underside of the plate 9 can , to the right of the previous housing, present the same housing on edge. The terminal 3 can also be blocked at a second point by a spacer 15 fixed to the underside of the plate 9.

Dans une autre variante selon l'invention où la cosse 3 comporte une première partie 13 de connexion au fil isolé et une seconde partie 14 de connexion au circuit imprimé, on utilise une autre technique d'enlèvement de l'isolant par accrochage. La cosse est constituée par une tôle, de laiton par exemple, pliée du côté 13 du fil en deux angles droits. Sur la face verticale, une fente 33 qui aboutit sur les deux faces de la cosse permet de maintenir le fil en contact électrique avec la cosse. Un logement 34 permet d'assurer l'élasticité de la cosse. Les bords de la fente 33 tranchent l'isolant jusqu'au coeur conducteur du fil isolé.In another variant according to the invention where the terminal 3 comprises a first part 13 for connection to the insulated wire and a second part 14 for connection to the printed circuit, another technique for removing the insulation by hooking is used. The terminal is made of a sheet, of brass for example, folded on the side 13 of the wire in two right angles. On the vertical face, a slot 33 which terminates on the two faces of the terminal makes it possible to maintain the wire in electrical contact with the terminal. A housing 34 ensures the elasticity of the terminal. The edges of the slot 33 cut the insulation up to the conductive core of the insulated wire.

Le retour du pliage en deux angles droits permet de former en cosse à ressort 27 la seconde partie 14 de la cosse 3. La partie supérieure du pliage qui porte des moyens 32 d'encliquetage de la cosse 3 dans son logement du boîtier 2 est plane. Elle est séparée du haut du ressort 27 d'une épaisseur légèrement inférieure à celle du circuit imprimé 25. Par élasticité, le contact est maintenu entre la piste 26 et le haut du ressort 27.The return of the folding at two right angles makes it possible to form a spring-loaded terminal 27 the second part 14 of the terminal 3. The upper part of the folding which carries means 32 for latching the terminal 3 in its housing of the housing 2 is flat . It is separated from the top of the spring 27 by a thickness slightly less than that of the printed circuit 25. By elasticity, contact is maintained between the track 26 and the top of the spring 27.

A la figure 6, on a représenté un connecteur selon l'invention qui utilise des cosses du type de celle de la figure 5.In FIG. 6, a connector is shown according to the invention which uses lugs of the type of that of FIG. 5.

Le premier boîtier 1 porte huit fils conducteurs isoles.a connecter à la plaquette 49 de circuit imprimé. Le peigne 50 de pistes 51-58 peut être simple ou double face. Le boîtier 1 comportant trois entretoises 38-40 la plaquette 49 porte trois encoches 59-61 qui permettent l'encastrement.The first housing 1 carries eight insulated conductive wires. Connect to the printed circuit board 49. The comb 50 of tracks 51-58 can be single or double sided. The housing 1 comprising three spacers 38-40 the plate 49 carries three notches 59-61 which allow the embedding.

Le second boîtier 2 comporte deux parties, 101, 102, perpendiculaires aux fils, qui peuvent être percées de rainures non représentées analogues et en regard de celles du boîtier 1. Comme le boîtier 2 est introduit selon la flèche 62, les rainures du boîtier 1 et du boîtier 2 sont de sens contraire de façon à bloquer chaque fil. De plus, particulièrement pour les fils émaillés de bobinage de très petit diamètre, le boîtier 2 porte, non représentées au dessin, des surfaces d'appui qui viennent s'appuyer sur chaque fil dans le boîtier 1.The second housing 2 has two parts, 101, 102, perpendicular to the wires, which can be pierced with similar not shown grooves and opposite those of the housing 1. As the housing 2 is introduced according to arrow 62, the grooves of the housing 1 and of the housing 2 are in opposite directions so as to block each wire. In addition, particularly for enameled winding wires of very small diameter, the housing 2 carries, not shown in the drawing, bearing surfaces which come to bear on each wire in the housing 1.

Une machine automatique, connue, place chaque cosse 41-48, tellé qu'à la figure 5, dans le connecteur selon la flèche 63, opposée à la flèche 62. Les fils, convenablement maintenus sont donc connectés aux cosses 41-48. Puis la plaquette 49 de circuit imprimé, est introduite dans les cosses 41-48 de telle sorte que chaque piste 51-58 est connectée à une cosse 41-48 qui lui est associé.A known automatic machine places each terminal 41-48, as in FIG. 5, in the connector according to arrow 63, opposite arrow 62. The wires, suitably maintained, are therefore connected to the terminals 41-48. Then the printed circuit board 49 is introduced into the terminals 41-48 so that each track 51-58 is connected to a terminal 41-48 which is associated with it.

D'autre part, le boîtier 2 porte des moyens de fixation, non représentés, de chaque cosse 41-48 par encliquetage. On obtient donc un montage du connecteur selon l'invention qui peut se décrire de la façon suivante. Tout d'abord les fils isolés sont installés dans leurs rainures 35 du boîtier 1. Puis le boîtier 2 est monté et fixé par encliquetage sur les plots 36, 37 du boîtier 1 de telle sorte que les fils soient bloqués. La machine de pose des cosses amène chaque cosse 41-48 sur le fil qui lui est réservé. Enfin, la plaquette 49 est montée par enfichage sur les cosses 41-48.On the other hand, the housing 2 carries fixing means, not shown, of each terminal 41-48 by snap-fastening. An assembly of the connector according to the invention is therefore obtained, which can be described as follows. First of all, the insulated wires are installed in their grooves 35 of the housing 1. Then the housing 2 is mounted and snapped onto the studs 36, 37 of the housing 1 so that the wires are blocked. The terminal installation machine feeds each terminal 41-48 onto the wire reserved for it. Finally, the plate 49 is mounted by plugging into the lugs 41-48.

Les exemples de réalisation dessinés sont donnés à titre représentatifs de l'invention. En particulier, les rapports de dimensions des dessins ne correspondent pas à la réalité. Au niveau des épaisseurs de chaque cosse, les imperatifs technologiques connus de l'homme de metier lui permettent de choisir les dimensions suffisantes pour que la cosse résiste à un sertissage à chaud et garde une élasticité suffisante pour les différents enfichages.The exemplary embodiments drawn are given by way of representative of the invention. In particular, the dimension ratios of the drawings do not correspond to reality. At the level of the thicknesses of each terminal, the technological imperatives known to those skilled in the art allow him to choose the dimensions sufficient for the terminal to withstand hot crimping and retain sufficient elasticity for the various plugs.

Claims (15)

1.- Electrical connector for windings of dynamoelectrical machines adapted to connect free insulated conductive wires (4) to a printed circuit, characterized in that it comprises electrically insulating support means (1, 2) that hold in place the initially free insulated wires and conducting terminal-conductors (3) whereon the insulation is displaced at a selected location along the free length of each wire (4) and connection is established to a printed circuit card inserted into the connector.
2.- Connector according to claim 1, characterized in that the support means (1, 2) comprise a first housing (1) that is provided with grooves (7, 8) in which each insulated wire is held in place.
3.- Connector according to claim 1 or 2, characterized in that the support means (1, 2) also comprise a second housing (2) for supporting each terminal-conductor (3) connecting the wire (4) to a printed circuit card.
4.- Connector according to claim 3, characterized in that each terminal-conductor (3) is rigidly secured within the housing (2) by attachment means (15) so that, once connected to the wire (4), any movement of the terminal-conductor (3) liable to act upon the wire (4) is rendered impossible.
5.- Connector according to claim 4, characterized in that the second housing (2) bears neans of attachment (16) to the first housing (1).
6.- Connector according to claim 1, characterized in that each terminal-conductor comprises a first part (13) for connecting the wire (4) to the terminal-conductor (3) by removal of the insulation and a second part (14) for connecting the terminal-conductor (3) to a printed circuit card by plugging-in.
7.- Connector according to claim 6, characterized in that the first part (13) prior to mounting comprises means which partially surround the wire (4) by portions (18-21) bent at right angles.
8.- Connector according to claim 7, characterized in that the rearmost portion (21) and (13) is bent during mounting at right angles behind the wire (4).
9.- Connector according to claim 8, characterized in that the first portion (13) has a boss for retaining the wire (4) during crimping.
10.- Connector according to claim 8 or 9, characterized in that the terminal-conductor (3) is hot-crimped on the insulated wire (4) so that the insulation is removed through evaporation.
11.- Connector according to claim 6, characterized in that the second part (14) comprises a harp-shaped opening intended to receive a single- or double-faced printed circuit card (23).
12.- Connector according to claim 6, characterized in that the second part (14) presents a configuration (27-30) bent so as to form a spring (27), the single-faced (26) printed circuit (27) being plugged-in between the upper plate (9) of the housing (2) and planar portion of the spring (27).
13.- Connector according to claim 6, characterized in that the first part (13) of the terminal-conductor (3) comprises a configuration bent twice at right angles and provided with a slot (33) that allows to connect each insulated wire (4) by piercing the insulator.
14.- Connector according to claims 6 and 13, characterized in that the terminal-conductor (3) comprises a planar upper portion and a bent lower spring portion (27) between which the single-faced or double-faced printed circuit card (25) is plugged-in.
15.- Connector according to claim 13 or 14, characterized in that each terminal-conductor (41-48) is provided with ratchet means (32) introduced into the second housing (2) which has grooves located in front of each wire, so as to block it within the housing (1), as well as bearing surfaces in front of each wire.
EP83400984A 1982-05-27 1983-05-17 Electrical connector for insulated conductors Expired EP0095957B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8209255A FR2527847A1 (en) 1982-05-27 1982-05-27 ELECTRICAL CONNECTOR FOR ISOLATED CONDUCTIVE WIRES
FR8209255 1982-05-27

Publications (2)

Publication Number Publication Date
EP0095957A1 EP0095957A1 (en) 1983-12-07
EP0095957B1 true EP0095957B1 (en) 1986-09-24

Family

ID=9274397

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83400984A Expired EP0095957B1 (en) 1982-05-27 1983-05-17 Electrical connector for insulated conductors

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EP (1) EP0095957B1 (en)
DE (1) DE3366409D1 (en)
FR (1) FR2527847A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006046260A1 (en) * 2006-09-28 2008-04-03 Diehl Ako Stiftung & Co. Kg component arrangement

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3221288A (en) * 1962-09-17 1965-11-30 Eads Connector Corp Printed circuit connector
US3299941A (en) * 1965-01-11 1967-01-24 Whirlpool Co Burner
US3294941A (en) * 1965-10-21 1966-12-27 Robert D Mullen Heat-responsive electric cable formed of heat shrinkable material
FR1548614A (en) * 1967-10-26 1968-12-06
US3474380A (en) * 1968-02-19 1969-10-21 Edwin A Miller Electrical connectors
NL173118C (en) * 1974-11-07 1983-12-01 Du Pont Berg Electronics Div CONTACT DEVICE FOR CONNECTING A WIRED FLAT TAPE CABLE TO A PRINTED WIRING PLATE.
US4038573A (en) * 1975-04-21 1977-07-26 General Signal Corporation Coil terminating means

Also Published As

Publication number Publication date
FR2527847A1 (en) 1983-12-02
DE3366409D1 (en) 1986-10-30
EP0095957A1 (en) 1983-12-07
FR2527847B1 (en) 1984-12-14

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