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EP1371113B1 - Power connector for a printed circuit - Google Patents

Power connector for a printed circuit Download PDF

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Publication number
EP1371113B1
EP1371113B1 EP02752881A EP02752881A EP1371113B1 EP 1371113 B1 EP1371113 B1 EP 1371113B1 EP 02752881 A EP02752881 A EP 02752881A EP 02752881 A EP02752881 A EP 02752881A EP 1371113 B1 EP1371113 B1 EP 1371113B1
Authority
EP
European Patent Office
Prior art keywords
opening
pins
pin
printed circuit
power
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 - Lifetime
Application number
EP02752881A
Other languages
German (de)
French (fr)
Other versions
EP1371113A1 (en
Inventor
Alain Barbion
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.)
Valeo Electrification SAS
Original Assignee
Valeo Systemes de Controle Moteur 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 Valeo Systemes de Controle Moteur SAS filed Critical Valeo Systemes de Controle Moteur SAS
Publication of EP1371113A1 publication Critical patent/EP1371113A1/en
Application granted granted Critical
Publication of EP1371113B1 publication Critical patent/EP1371113B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/112—Resilient sockets forked sockets having two legs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/26—Connectors or connections adapted for particular applications for vehicles

Definitions

  • the present invention relates to a power connector that can be used in particular in a printed circuit board intended for example for the control of electric and especially electromagnetic actuators.
  • the connector has a relatively compact structure that allows good transmission of relatively high power electrical currents and easy introduction of the support in the base parallel to the bearing surface.
  • This connection does not require bending the conductors to run parallel to the printed circuit. This contributes to a minimal footprint connection.
  • the pin comprises a tab which is cut in a conductive plate forming the printed circuit and is folded to extend perpendicularly to the conductive plate.
  • the pin is then made particularly simple in one piece with the conductive plate forming the printed circuit.
  • the invention is here described in relation to a printed circuit board intended to receive a power module (not shown) of known type and associated with a power connector for supplying the power supply of an electric actuator (not shown). ) connected to the power module via the connector.
  • the card generally designated 1
  • the card comprises an insulating plate 2 having two opposite faces 3 and 4 carrying a control circuit 5 and two power circuits generally designated 6 and 7.
  • the control circuit 5 is in the form of conductive tracks printed on the face 3 of the insulating plate 2.
  • the control circuit 5 is connected to the power module to ensure the transmission of low power control signals from and to destination of the power module and to connect the power circuits 6 and 7 to the power module via short lengths that can transmit signals of higher power without undergoing a heating risk of damaging them.
  • the power circuits 6 and 7 are of lead frame type and respectively comprise a conductive plate 8 fixed on the face 4 of the insulating plate 2 and a conductive plate 9 fixed on the conductive plate 6.
  • the conductive plates 8, 9 are made of copper of sufficient thickness for the conduction of power and delimit conductive tracks.
  • the conductive plates 8, 9 furthermore comprise bores 40, 41 for the passage of the pins connection of the power module and other components possibly mounted on the card, such as coils 12, one of which is visible on the figure 2 .
  • the holes 40, 41 have a section greater than that of the connection pins so that the connection pins are not in contact with the plates 8, 9.
  • the conductive plates 8, 9 are each wrapped in an insulating layer 10, 11 (not shown in FIG. figure 1 but visible on the figure 2 ).
  • the insulating layers 10 and 11 are here formed by flexible sheets of insulating material having an adhesive face for their fixing on the conductive plates 8, 9. Thanks to the insulating layers 10, 11 interposed between the conductive plates 8 and 9, the circuits power 6 and 7 can be arranged one on the other, which limits the size.
  • the insulating layers 10, 11 have openings facing the holes 40, 41.
  • Tracks of the conductive plate 8 comprise end portions 38 extending substantially perpendicular to the conductive plate 8 projecting from the insulating layer 10.
  • tracks of the conductive plate 9 comprise portions of the conductive plate 8.
  • end 39 extending substantially perpendicular to the conductive plate 9 projecting from the insulating layer 11. It will be noted that the power circuits can thus form subsets ready to be mounted on printed circuits.
  • the end portions 38 are received in holes 42 formed in the insulating plate 2 and each have a free end protruding from the control circuit 5 and fixed to a portion thereof.
  • the end portions 39 are received in holes 43 formed in the power circuit 6 and in corresponding holes 42 of the insulating plate. 2 and each have a free end protruding from the control circuit 5 and attached to a section thereof.
  • the free ends of the end portions 38, 39 are fixed to the control circuit 5 by a weld.
  • control circuit 5 has a very small length to enable them to conduct relatively high currents (of the order of 20 amperes) without undergoing too much heating which could damage them.
  • the end portions 38, 39 provide on the one hand the connection of the conductive plates 8, 9 with the control circuit 5 to transmit the power signals between the power module and the actuator and on the other hand the fixing of the power circuit 6, 7 on the insulating plate 2.
  • additional end portions 38 ', 39' are provided which are welded to sections of the control circuit 5 not connected to the power module and are only used for fixing the power circuit in question. .
  • connection of the power circuits 6, 7 of the card 1 to the electric actuator to which they are intended to be connected is provided via a connector generally designated 13.
  • the connector 13 comprises a base generally designated 14 which is made of an insulating material and is provided with a bearing surface 15 on the circuit of power 7 and a housing 16 associated with an opening 17 disposed laterally.
  • Pins generally designated 18 and 19, pass through the bearing face 15 perpendicular to it and extend into holes 20 of the base 14.
  • the pins 18 extend into openings of the power circuit 7 and have an end 21 connected to the conductive plate 8 and an opposite end forming a connecting portion 22 which protrudes into the housing 16.
  • the end 21 is extended opposite the connecting portion 22 by one of the additional end portions 38 'welded to sections of the control circuit 5 not connected to the power module.
  • the connecting portion 22 comprises two faces 23 parallel to a plane perpendicular to the opening 17 (the plane of the sheet to the figure 2 ) and a beveled edge 24 oriented towards the opening 17.
  • the pins 18 have anchor strips 25 in the insulating base 14.
  • the pins 19 are disposed beyond the pins 18 and have an end 26 connected to the conductive plate 9 and an opposite end forming a connecting portion 27 which protrudes into the housing 16.
  • the end 26 is extended to the opposite of the connecting portion 27 by one of the additional end portions 39 'received in holes 42 and welded to sections of the control circuit 5 not connected to the power module.
  • the connecting portion 27 comprises two faces 28 parallel to a plane perpendicular to the opening 17 (the plane of the sheet to the figure 2 ) and a bevelled edge 29 oriented towards the opening 17.
  • the spindle 19 has anchoring steps 30 in the insulating base 14.
  • the pins 18 and 19 are here formed of a tab which is cut in the conductive plate 8, 9 and is folded to extend perpendicularly thereto through the corresponding insulating layer 10, 11.
  • the pins 18 and 19 are arranged in two rows offset with respect to each other.
  • the pins 19 are adjacent to the opening 17 and have a height in the housing 16 which is less than that of the pins 18. This arrangement makes it possible to limit the bulk of the connector 13.
  • the base 14 also serves as a mounting support for the coils 12 whose connection pins extend into holes formed in correspondence in the base 14, in the power circuits 6, 7 and in the insulating plate 2, and have a free end protruding from the control circuit 5 and welded thereto.
  • the connector further comprises a support, generally designated 31, which is made of insulating material and is arranged to be introduced at least partially into the housing 16 through the opening 17.
  • the support 31 comprises housings 32 which each have a longitudinal slot 33 for receiving a pin 18, 19 and which each receive a plug 34 fixed in a housing 32.
  • Each plug 34 has an end connected to a connecting conductor 40 to the electric actuator (only two conductors are shown in figure 1 ) and an opposite end comprising opposite the slot 33 two flexible tabs 35 which are elastically deformable between a first state in which the two flexible tabs 35 have surfaces 36 applied against each other and a second state in which the surfaces 36 are spaced from each other (see in particular the figure 4 ).
  • the flexible tabs 35 have diverging free ends 37.
  • the plugs 34 intended to be connected to the pins 18 extend projecting and above the pins 34 intended to be connected to the pins 19 (see figure 1 ).
  • the base 14 is force-fitted on the pins 18 and 19.
  • the strips 25 and 30 are then anchored in the walls of the holes 20 and hold the base 14 resting on the power circuit 7 by its support surface 15.
  • the control circuit 5 is formed on the face 3 of the support plate 2 and the power circuits 6 and 7 and the power module and the coils 12 are mounted on the insulating plate 2 by the face 4 of it.
  • the free ends of the end portions 38, 39, 38 ', 39' and the connection pins of the power module and the coils 12 are then soldered to the control circuit 5.
  • the solder is here preferably made to the wave . It will be noted that thus all the components of the card, including the power circuits 6, 7, are fixed to the insulating plate 2 and connected to the control circuit 5 in a particularly easy manner, in a single operation.
  • connection is made by engaging the support 31 in the housing 16 through the opening 17 in a direction parallel to the bearing face 15 and the insulating plate 2.
  • Such an introduction does not require bending the conductors 44 for the parallel to the card, which allows for a minimal congestion connection.
  • the connecting portions 22, 27 of the pins 18, 19 are engaged in the slots 33 and the free ends 37 of the pins 34 come into contact with the beveled edge 24, 29 of the pins 18, 19 and are separated by it to amend the surfaces 36 in contact with the faces 23 and 28.
  • the elasticity of the material of each plug 34 maintains the surfaces 36 thereof in contact with the faces 23, 28 of the pin 18, 19 corresponding.
  • the depth of the slot 33 determines the insertion depth of the pin 18, 19 in the plug 34 so that, for a maximum depression, the surfaces 36 and faces 23, 28 extend opposite.
  • the connector 13 thus has a relatively compact structure which allows good transmission of relatively high power electrical currents and easy introduction of the support 31 into the base 14 parallel to the bearing surface 15.
  • the insulating layers 10, 11 are formed of a rigid insulating material molded around the plates 8 and 9 and the base 14 is made of the same material to form with the insulating layers 10 and a single piece generally designated 45.
  • the conductive plates 8 and 9 are then used as inserts in the mold into which is injected the material intended to form the part 45.
  • pins 18, 19 have been described as being cut in the conductive plates 8, 9 and folded to extend perpendicularly to the plates, which simplifies the structure of the power circuits 6, 7, the pins 18, 19 can be reported on the power circuits 6, 7.
  • the support plate 2 may be made of a heat-conducting material such as aluminum (an insulating insulating layer then being interposed between the plate and the circuits) in order to contribute to the cooling of the circuits.
  • the insulating layer 10, 11 may cover only one face of the conductive plate 8, 9.
  • the card may comprise only one power circuit or more than two power circuits.
  • the pins 18, 19 may be arranged differently, their positions being for example able to be reversed.

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  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

The invention relates to a power connector for a printed circuit comprising: an insulating base (14) which is provided with a support face (15) on the printed circuit and a housing (16) that is connected to a laterally-disposed opening (17); a pin (18, 19) that passes through the support face perpendicularly and which is provided with a connection portion (22, 27) that projects into the housing and two faces (23, 28) that are parallel to a plane that is perpendicular to the opening; an insulating support (31) which is disposed to be at least partially inserted in the housing through the opening; and a plug (34) which is solidly connected to the support and which is provided with two flexible tabs (35) in order to be applied to the faces of the connection portion of the pin.

Description

La présente invention concerne un connecteur de puissance utilisable en particulier dans une carte à circuit imprimé destinée par exemple à la commande d'actionneurs électriques et notamment électromagnétiques.The present invention relates to a power connector that can be used in particular in a printed circuit board intended for example for the control of electric and especially electromagnetic actuators.

Dans le domaine automobile, de plus en plus d'actionneurs électriques de forte puissance sont utilisés. L'alimentation de puissance actuellement envisagée pour ces actionneurs est assurée par des modules de puissance associés à une carte comportant des pistes conductrices de la puissance à destination des actionneurs. Un problème lié à ce type d'alimentation est de connecter ces pistes de puissance à des conducteurs d'alimentation des actionneurs, cette connexion devant pouvoir être démontable afin de permettre le remplacement de la carte d'alimentation en cas de défaillance de celle-ci. En outre, des contraintes d'encombrement très fortes conduisent à imposer un départ des conducteurs de l'alimentation parallèlement au circuit imprimé, au plus près de celui-ci.In the automotive field, more and more electric actuators of high power are used. The power supply currently envisaged for these actuators is provided by power modules associated with a card comprising conductive tracks power to the actuators. A problem related to this type of power supply is to connect these power tracks to power supply conductors actuators, this connection must be removable to allow the replacement of the power supply card in case of failure thereof . In addition, very large space constraints lead to impose a departure of the power supply conductors parallel to the printed circuit, as close to it.

Il existe actuellement de nombreuses structures de connecteurs. Toutefois, aucune ne constitue une adéquation optimale pour répondre aux contraintes ci-dessus énoncées. Le document DE 43 07 134 décrit un dispositif selon le préambule de la revendication 1.There are currently many connector structures. However, none is an optimal fit to meet the above constraints. The document DE 43 07 134 describes a device according to the preamble of claim 1.

Selon l'invention, on propose, un connecteur de puissance pour circuit imprimé, comprenant :

  • une embase isolante pourvue d'une face d'appui sur le circuit imprimé et d'un logement associé à une ouverture disposée latéralement,
  • au moins une broche traversant la face d'appui perpendiculairement à celle-ci et ayant une portion de raccordement qui s'étend en saillie dans le logement et présente deux faces parallèles à un plan perpendiculaire à l'ouverture,
  • un support isolant agencé pour être introduit au moins partiellement dans le logement par l'ouverture,
  • et au moins une fiche solidaire du support et pourvue de deux pattes flexibles pour être appliquée sur les faces de la portion de raccordement de la broche.
According to the invention, there is provided a power connector for a printed circuit comprising:
  • an insulating base provided with a bearing surface on the printed circuit and a housing associated with an opening disposed laterally,
  • at least one pin passing through the bearing surface perpendicular thereto and having a connecting portion which projects in the housing and has two faces parallel to a plane perpendicular to the opening,
  • an insulating support arranged to be introduced at least partially in the housing through the opening,
  • and at least one plug secured to the support and provided with two flexible tabs to be applied to the faces of the connecting portion of the pin.

Ainsi, le connecteur a une structure relativement compacte qui permet une bonne transmission des courants électriques de relativement forte puissance et une introduction aisée du support dans l'embase parallèlement à la surface d'appui. Cette connexion n'oblige donc pas à courber les conducteurs pour les faire partir parallèlement au circuit imprimé. Ceci concourt à une connexion d'encombrement minimal.Thus, the connector has a relatively compact structure that allows good transmission of relatively high power electrical currents and easy introduction of the support in the base parallel to the bearing surface. This connection does not require bending the conductors to run parallel to the printed circuit. This contributes to a minimal footprint connection.

De préférence, la broche comprend une patte qui est découpée dans une plaque conductrice formant le circuit imprimé et est pliée pour s'étendre perpendiculairement à la plaque conductrice.Preferably, the pin comprises a tab which is cut in a conductive plate forming the printed circuit and is folded to extend perpendicularly to the conductive plate.

La broche est alors réalisée de manière particulièrement simple en une seule pièce avec la plaque conductrice formant le circuit imprimé.The pin is then made particularly simple in one piece with the conductive plate forming the printed circuit.

D'autres caractéristiques et avantages de l'invention ressortiront à la lecture de la description qui suit d'un mode de réalisation particulier non limitatif de l'invention.Other features and advantages of the invention will become apparent on reading the following description of a particular non-limiting embodiment of the invention.

Il sera fait référence aux dessins annexés, parmi lesquels :

  • la figure 1 est une vue partielle en perspective, avec écorché, d'une carte à circuits imprimés associée à un connecteur, selon un mode de réalisation particulier de l'invention,
  • la figure 2 est une vue partielle en coupe de cette carte et du connecteur,
  • la figure 3 est une vue partielle avec éclaté du connecteur,
  • la figure 4 est une vue partielle de dessus, avec écorché, de ce connecteur,
  • les figures 5.a et 5.b sont des vues en coupe de la carte montrant le raccordement des circuits les uns aux autres,
  • la figure 6 est une vue analogue à la figure 2 d'une variante de réalisation de l'invention.
Reference will be made to the appended drawings, among which:
  • the figure 1 is a partial perspective view, with cutaway, of a printed circuit board associated with a connector, according to a particular embodiment of the invention,
  • the figure 2 is a partial sectional view of this card and the connector,
  • the figure 3 is a partial view with exploded connector,
  • the figure 4 is a partial view from above, with skin, of this connector,
  • the Figures 5.a and 5.b are sectional views of the map showing the connection of the circuits to each other,
  • FIG. 6 is a view similar to figure 2 of an alternative embodiment of the invention.

L'invention est ici décrite en relation avec une carte à circuits imprimés destinée à recevoir un module de puissance (non représenté) de type connu et associée à un connecteur de puissance pour fournir l'alimentation de puissance d'un actionneur électrique (non représenté) relié au module de puissance via le connecteur.The invention is here described in relation to a printed circuit board intended to receive a power module (not shown) of known type and associated with a power connector for supplying the power supply of an electric actuator (not shown). ) connected to the power module via the connector.

En référence aux figures 1 à 5.a, la carte, généralement désignée en 1, comprend une plaque isolante 2 ayant deux faces opposées 3 et 4 portant un circuit de commande 5 et deux circuits de puissance généralement désignés en 6 et 7.With reference to Figures 1 to 5.a , the card, generally designated 1, comprises an insulating plate 2 having two opposite faces 3 and 4 carrying a control circuit 5 and two power circuits generally designated 6 and 7.

Le circuit de commande 5 est réalisé sous la forme de pistes conductrices imprimées sur la face 3 de la plaque isolante 2. Le circuit de commande 5 est raccordé au module de puissance pour assurer la transmission des signaux de commande de faible puissance en provenance et à destination du module de puissance et pour relier les circuits de puissance 6 et 7 au module de puissance via des tronçons de faible longueur pouvant transmettre des signaux de plus forte puissance sans subir un échauffement risquant de les détériorer.The control circuit 5 is in the form of conductive tracks printed on the face 3 of the insulating plate 2. The control circuit 5 is connected to the power module to ensure the transmission of low power control signals from and to destination of the power module and to connect the power circuits 6 and 7 to the power module via short lengths that can transmit signals of higher power without undergoing a heating risk of damaging them.

Les circuits de puissance 6 et 7 sont de type lead frame et comprennent respectivement une plaque conductrice 8 fixée sur la face 4 de la plaque isolante 2 et une plaque conductrice 9 fixée sur la plaque conductrice 6. Les plaques conductrices 8, 9 sont réalisées en cuivre d'épaisseur suffisante pour la conduction de la puissance et délimitent des pistes conductrices. Les plaques conductrices 8, 9 comprennent en outre des perçages 40, 41 pour le passage des broches de connexion du module de puissance et des autres composants éventuellement montés sur la carte, comme des bobines 12 dont l'une est visible sur la figure 2. Les perçages 40, 41 ont une section supérieure à celle des broches de connexion de telle manière que les broches de connexion ne sont pas en contact avec les plaques 8, 9.The power circuits 6 and 7 are of lead frame type and respectively comprise a conductive plate 8 fixed on the face 4 of the insulating plate 2 and a conductive plate 9 fixed on the conductive plate 6. The conductive plates 8, 9 are made of copper of sufficient thickness for the conduction of power and delimit conductive tracks. The conductive plates 8, 9 furthermore comprise bores 40, 41 for the passage of the pins connection of the power module and other components possibly mounted on the card, such as coils 12, one of which is visible on the figure 2 . The holes 40, 41 have a section greater than that of the connection pins so that the connection pins are not in contact with the plates 8, 9.

Les plaques conductrices 8, 9 sont enveloppées chacune dans une couche isolante 10, 11 (non représentées sur la figure 1 mais visibles sur la figure 2). Les couches isolantes 10 et 11 sont ici formées par des feuilles flexibles de matériau isolant ayant une face adhésive pour leur fixation sur les plaques conductrices 8, 9. Grâce aux couches isolantes 10, 11 interposées entre les plaques conductrices 8 et 9, les circuits de puissance 6 et 7 peuvent être disposés l'un sur l'autre, ce qui permet de limiter l'encombrement. Les couches isolantes 10, 11 possèdent des ouvertures en regard des perçages 40, 41.The conductive plates 8, 9 are each wrapped in an insulating layer 10, 11 (not shown in FIG. figure 1 but visible on the figure 2 ). The insulating layers 10 and 11 are here formed by flexible sheets of insulating material having an adhesive face for their fixing on the conductive plates 8, 9. Thanks to the insulating layers 10, 11 interposed between the conductive plates 8 and 9, the circuits power 6 and 7 can be arranged one on the other, which limits the size. The insulating layers 10, 11 have openings facing the holes 40, 41.

Des pistes de la plaque conductrice 8 comprennent des portions d'extrémité 38 s'étendant de façon sensiblement perpendiculaire à la plaque conductrice 8 en saillie de la couche isolante 10. De la même manière, des pistes de la plaque conductrice 9 comprennent des portions d'extrémité 39 s'étendant de façon sensiblement perpendiculaire à la plaque conductrice 9 en saillie de la couche isolante 11. On remarquera que les circuits de puissance peuvent ainsi former des sous-ensembles prêts à être montés sur des circuits imprimés.Tracks of the conductive plate 8 comprise end portions 38 extending substantially perpendicular to the conductive plate 8 projecting from the insulating layer 10. In the same way, tracks of the conductive plate 9 comprise portions of the conductive plate 8. end 39 extending substantially perpendicular to the conductive plate 9 projecting from the insulating layer 11. It will be noted that the power circuits can thus form subsets ready to be mounted on printed circuits.

Les portions d'extrémité 38 sont reçues dans des perçages 42 ménagés dans la plaque isolante 2 et ont chacun une extrémité libre en saillie du circuit de commande 5 et fixée à un tronçon de celui-ci. De manière analogue, les portions d'extrémité 39 sont reçues dans des perçages 43 ménagés dans le circuit de puissance 6 et dans des perçages correspondantes 42 de la plaque isolante 2 et ont chacun une extrémité libre en saillie du circuit de commande 5 et fixée à un tronçon de celui-ci. Les extrémités libres des portions d'extrémité 38, 39 sont fixées au circuit de commande 5 par une soudure.The end portions 38 are received in holes 42 formed in the insulating plate 2 and each have a free end protruding from the control circuit 5 and fixed to a portion thereof. Similarly, the end portions 39 are received in holes 43 formed in the power circuit 6 and in corresponding holes 42 of the insulating plate. 2 and each have a free end protruding from the control circuit 5 and attached to a section thereof. The free ends of the end portions 38, 39 are fixed to the control circuit 5 by a weld.

Comme indiqué plus haut, les tronçons en question du circuit de commande 5 ont une longueur très faible pour leur permettre de conduire des courants relativement forts (de l'ordre de 20 ampères) sans subir un échauffement trop important qui risquerait de les détériorer.As indicated above, the sections in question of the control circuit 5 have a very small length to enable them to conduct relatively high currents (of the order of 20 amperes) without undergoing too much heating which could damage them.

Les portions d'extrémité 38, 39 assurent d'une part la liaison des plaques conductrices 8, 9 avec le circuit de commande 5 pour transmettre les signaux de puissance entre le module de puissance et l'actionneur et d'autre part la fixation des circuit de puissance 6, 7 sur la plaque isolante 2.The end portions 38, 39 provide on the one hand the connection of the conductive plates 8, 9 with the control circuit 5 to transmit the power signals between the power module and the actuator and on the other hand the fixing of the power circuit 6, 7 on the insulating plate 2.

Pour améliorer la fixation, il est prévu des portions d'extrémité 38', 39' additionnelles qui sont soudées à des tronçons du circuit de commande 5 non raccordés au module de puissance et ne servent qu'à la fixation du circuit de puissance en question.To improve the attachment, additional end portions 38 ', 39' are provided which are welded to sections of the control circuit 5 not connected to the power module and are only used for fixing the power circuit in question. .

On notera, en particulier à la figure 5.b, que la flexibilité des couches isolantes 10, 11 permet à celles-ci d'épouser la forme de la partie coudée d'une portion d'extrémité 38, cette partie coudée s'étendant en saillie de la plaque 8 dans une ouverture de la plaque conductrice 9. Ceci permet encore de limiter l'encombrement des circuits de puissance superposés.It will be noted, in particular figure 5.b , that the flexibility of the insulating layers 10, 11 allows them to conform to the shape of the bent portion of an end portion 38, this bent portion projecting from the plate 8 in an opening of the conductive plate 9. This further limits the size of superimposed power circuits.

La liaison des circuits de puissance 6, 7 de la carte 1 à l'actionneur électrique auquel ils sont destinés à être reliés est assurée par l'intermédiaire d'un connecteur généralement désigné en 13.The connection of the power circuits 6, 7 of the card 1 to the electric actuator to which they are intended to be connected is provided via a connector generally designated 13.

Le connecteur 13 comprend une embase généralement désignée en 14 qui est réalisée en un matériau isolant et est pourvue d'une face d'appui 15 sur le circuit de puissance 7 et d'un logement 16 associé à une ouverture 17 disposée latéralement.The connector 13 comprises a base generally designated 14 which is made of an insulating material and is provided with a bearing surface 15 on the circuit of power 7 and a housing 16 associated with an opening 17 disposed laterally.

Des broches, généralement désignées en 18 et 19, traversent la face d'appui 15 perpendiculairement à celle-ci et s'étendent dans des trous 20 de l'embase 14.Pins, generally designated 18 and 19, pass through the bearing face 15 perpendicular to it and extend into holes 20 of the base 14.

Les broches 18 s'étendent dans des ouvertures du circuit de puissance 7 et ont une extrémité 21 reliée à la plaque conductrice 8 et une extrémité opposée formant une portion de raccordement 22 qui s'étend en saillie dans le logement 16. L'extrémité 21 est prolongée à l'opposé de la portion de raccordement 22 par une des portions d'extrémité 38' additionnelles soudées à des tronçons du circuit de commande 5 non raccordés au module de puissance. La portion de raccordement 22 comprend deux faces 23 parallèles à un plan perpendiculaire à l'ouverture 17 (le plan de la feuille à la figure 2) et un chant biseauté 24 orienté vers l'ouverture 17. Les broches 18 possèdent des redans 25 d'ancrage dans l'embase isolante 14.The pins 18 extend into openings of the power circuit 7 and have an end 21 connected to the conductive plate 8 and an opposite end forming a connecting portion 22 which protrudes into the housing 16. The end 21 is extended opposite the connecting portion 22 by one of the additional end portions 38 'welded to sections of the control circuit 5 not connected to the power module. The connecting portion 22 comprises two faces 23 parallel to a plane perpendicular to the opening 17 (the plane of the sheet to the figure 2 ) and a beveled edge 24 oriented towards the opening 17. The pins 18 have anchor strips 25 in the insulating base 14.

Les broches 19 sont disposées au-delà des broches 18 et ont une extrémité 26 reliée à la plaque conductrice 9 et une extrémité opposée formant une portion de raccordement 27 qui s'étend en saillie dans le logement 16. L'extrémité 26 est prolongée à l'opposé de la portion de raccordement 27 par une des portions d'extrémité 39' additionnelles reçues dans des perçages 42 et soudées à des tronçons du circuit de commande 5 non raccordés au module de puissance. La portion de raccordement 27 comprend deux faces 28 parallèles à un plan perpendiculaire à l'ouverture 17 (le plan de la feuille à la figure 2) et un chant biseauté 29 orienté vers l'ouverture 17. Les broche 19 possèdent des redans 30 d'ancrage dans l'embase isolante 14.The pins 19 are disposed beyond the pins 18 and have an end 26 connected to the conductive plate 9 and an opposite end forming a connecting portion 27 which protrudes into the housing 16. The end 26 is extended to the opposite of the connecting portion 27 by one of the additional end portions 39 'received in holes 42 and welded to sections of the control circuit 5 not connected to the power module. The connecting portion 27 comprises two faces 28 parallel to a plane perpendicular to the opening 17 (the plane of the sheet to the figure 2 ) and a bevelled edge 29 oriented towards the opening 17. The spindle 19 has anchoring steps 30 in the insulating base 14.

Les broches 18 et 19 sont ici formées d'une patte qui est découpée dans la plaque conductrice 8, 9 et est pliée pour s'étendre perpendiculairement à celle-ci au travers de la couche isolante 10, 11 correspondante.The pins 18 and 19 are here formed of a tab which is cut in the conductive plate 8, 9 and is folded to extend perpendicularly thereto through the corresponding insulating layer 10, 11.

Les broches 18 et 19 sont disposées selon deux rangs décalés l'un par rapport à l'autre. Les broches 19 sont adjacentes à l'ouverture 17 et ont une hauteur dans le logement 16 qui est inférieure à celle des broches 18. Cet agencement permet de limiter l'encombrement du connecteur 13.The pins 18 and 19 are arranged in two rows offset with respect to each other. The pins 19 are adjacent to the opening 17 and have a height in the housing 16 which is less than that of the pins 18. This arrangement makes it possible to limit the bulk of the connector 13.

L'embase 14 sert également de support de montage pour les bobines 12 dont les broches de connexion s'étendent dans des perçages ménagés en correspondance dans l'embase 14, dans les circuits de puissance 6, 7 et dans la plaque isolante 2, et possèdent une extrémité libre en saillie du circuit de commande 5 et soudée à celui-ci.The base 14 also serves as a mounting support for the coils 12 whose connection pins extend into holes formed in correspondence in the base 14, in the power circuits 6, 7 and in the insulating plate 2, and have a free end protruding from the control circuit 5 and welded thereto.

Le connecteur comprend en outre un support, généralement désigné en 31, qui est réalisé en matériau isolant et est agencé pour être introduit au moins partiellement dans le logement 16 par l'ouverture 17.The connector further comprises a support, generally designated 31, which is made of insulating material and is arranged to be introduced at least partially into the housing 16 through the opening 17.

Le support 31 comporte des logements 32 qui présentent chacun une fente 33 longitudinale pour recevoir une broche 18, 19 et qui reçoivent chacun une fiche 34 fixée dans un logement 32. Chaque fiche 34 possède une extrémité reliée à un conducteur 40 de raccordement à l'actionneur électrique (seuls deux conducteurs sont représentées à la figure 1) et une extrémité opposée comprenant en regard de la fente 33 deux pattes flexibles 35 qui sont élastiquement déformables entre un premier état dans lequel les deux pattes flexibles 35 présentent des surfaces 36 appliquées l'une contre l'autre et un deuxième état dans lequel les surfaces 36 sont écartées l'une de l'autre (voir en particulier la figure 4). Les pattes flexibles 35 ont des extrémités libres 37 divergentes.The support 31 comprises housings 32 which each have a longitudinal slot 33 for receiving a pin 18, 19 and which each receive a plug 34 fixed in a housing 32. Each plug 34 has an end connected to a connecting conductor 40 to the electric actuator (only two conductors are shown in figure 1 ) and an opposite end comprising opposite the slot 33 two flexible tabs 35 which are elastically deformable between a first state in which the two flexible tabs 35 have surfaces 36 applied against each other and a second state in which the surfaces 36 are spaced from each other (see in particular the figure 4 ). The flexible tabs 35 have diverging free ends 37.

Les fiches 34 destinées à être raccordées aux broches 18 s'étendent en saillie et au-dessus des fiches 34 destinées à être raccordées aux broches 19 (voir figure 1).The plugs 34 intended to be connected to the pins 18 extend projecting and above the pins 34 intended to be connected to the pins 19 (see figure 1 ).

Pour réaliser la carte, l'embase 14 est emmanchée à force sur les broches 18 et 19. Les redans 25 et 30 s'ancrent alors dans les parois des trous 20 et maintiennent l'embase 14 en appui sur le circuit de puissance 7 par sa face d'appui 15. Le circuit de commande 5 est réalisé sur la face 3 de la plaque support 2 et les circuits de puissance 6 et 7 puis le module de puissance et les bobines 12 sont montés sur la plaque isolante 2 par la face 4 de celle-ci. Les extrémités libres des portions d'extrémité 38, 39, 38', 39' et des broches de connexion du module de puissance et des bobines 12 sont ensuite soudées sur le circuit de commande 5. La soudure est ici de préférence réalisée à la vague. On notera qu'ainsi tous les composants de la carte, y compris les circuits de puissance 6, 7, sont fixés à la plaque isolante 2 et raccordés au circuit de commande 5 de manière particulièrement aisée, en une seule opération.To make the card, the base 14 is force-fitted on the pins 18 and 19. The strips 25 and 30 are then anchored in the walls of the holes 20 and hold the base 14 resting on the power circuit 7 by its support surface 15. The control circuit 5 is formed on the face 3 of the support plate 2 and the power circuits 6 and 7 and the power module and the coils 12 are mounted on the insulating plate 2 by the face 4 of it. The free ends of the end portions 38, 39, 38 ', 39' and the connection pins of the power module and the coils 12 are then soldered to the control circuit 5. The solder is here preferably made to the wave . It will be noted that thus all the components of the card, including the power circuits 6, 7, are fixed to the insulating plate 2 and connected to the control circuit 5 in a particularly easy manner, in a single operation.

La connexion est réalisée en engageant le support 31 dans le logement 16 par l'ouverture 17 selon une direction parallèle à la face d'appui 15 et à la plaque isolante 2. Une telle introduction n'oblige pas à courber les conducteurs 44 pour les faire partir parallèlement à la carte, ce qui permet d'avoir une connexion d'encombrement minimal.The connection is made by engaging the support 31 in the housing 16 through the opening 17 in a direction parallel to the bearing face 15 and the insulating plate 2. Such an introduction does not require bending the conductors 44 for the parallel to the card, which allows for a minimal congestion connection.

Les portions de raccordement 22, 27 des broches 18, 19 sont engagées dans les fentes 33 et les extrémités libres 37 des fiches 34 arrivent en contact du bord biseauté 24, 29 des broches 18, 19 et sont écartées par celui-ci pour amender les surfaces 36 en contact des faces 23 et 28. L'élasticité du matériau de chaque fiche 34 maintient les surfaces 36 de celle-ci en contact avec les faces 23, 28 de la broche 18, 19 correspondante. La profondeur de la fente 33 détermine la profondeur d'introduction de la broche 18, 19 dans la fiche 34 de telle manière que, pour un enfoncement maximal, les surfaces 36 et les faces 23, 28 s'étendent en regard.The connecting portions 22, 27 of the pins 18, 19 are engaged in the slots 33 and the free ends 37 of the pins 34 come into contact with the beveled edge 24, 29 of the pins 18, 19 and are separated by it to amend the surfaces 36 in contact with the faces 23 and 28. The elasticity of the material of each plug 34 maintains the surfaces 36 thereof in contact with the faces 23, 28 of the pin 18, 19 corresponding. The depth of the slot 33 determines the insertion depth of the pin 18, 19 in the plug 34 so that, for a maximum depression, the surfaces 36 and faces 23, 28 extend opposite.

On notera que le connecteur 13 a ainsi une structure relativement compacte qui permet une bonne transmission des courants électriques de relativement forte puissance et une introduction aisée du support 31 dans l'embase 14 parallèlement à la surface d'appui 15.It will be noted that the connector 13 thus has a relatively compact structure which allows good transmission of relatively high power electrical currents and easy introduction of the support 31 into the base 14 parallel to the bearing surface 15.

En variante, telle que représentée à la figure 6, les couches isolantes 10, 11 sont formées d'un matériau isolant rigide moulé autour des plaques 8 et 9 et l'embase 14 est réalisée dans le même matériau pour former avec les couches isolantes 10 et 11 une seule pièce généralement désignée en 45. Les plaques conductrices 8 et 9 sont alors utilisées comme inserts dans le moule dans lequel est injecté le matériau destiné à former la pièce 45.Alternatively, as shown in Figure 6, the insulating layers 10, 11 are formed of a rigid insulating material molded around the plates 8 and 9 and the base 14 is made of the same material to form with the insulating layers 10 and a single piece generally designated 45. The conductive plates 8 and 9 are then used as inserts in the mold into which is injected the material intended to form the part 45.

Bien entendu, l'invention n'est pas limitée au mode de réalisation décrit et on peut y apporter des variantes de réalisation sans sortir du cadre de l'invention tel que défini par les revendications.Of course, the invention is not limited to the embodiment described and variants may be provided without departing from the scope of the invention as defined by the claims.

En particulier, bien que les broches 18, 19 aient été décrites comme étant découpées dans les plaques conductrices 8, 9 et pliées pour s'étendre perpendiculairement aux plaques, ce qui simplifie la structure des circuits de puissance 6, 7, les broches 18, 19 peuvent être rapportées sur les circuits de puissance 6, 7.In particular, although the pins 18, 19 have been described as being cut in the conductive plates 8, 9 and folded to extend perpendicularly to the plates, which simplifies the structure of the power circuits 6, 7, the pins 18, 19 can be reported on the power circuits 6, 7.

En outre, la plaque support 2 peut être réalisée en un matériau conducteur de chaleur comme l'aluminium (une couche isolante rapportée étant alors interposée entre la plaque et les circuits) afin de contribuer au refroidissement des circuits.In addition, the support plate 2 may be made of a heat-conducting material such as aluminum (an insulating insulating layer then being interposed between the plate and the circuits) in order to contribute to the cooling of the circuits.

La couche isolante 10, 11 peut ne recouvrir qu'une face de la plaque conductrice 8, 9.The insulating layer 10, 11 may cover only one face of the conductive plate 8, 9.

Par ailleurs, la carte peut ne comprendre qu'un circuit de puissance ou plus de deux circuits de puissance.In addition, the card may comprise only one power circuit or more than two power circuits.

Les broches 18, 19 peuvent être agencées différemment, leurs positions pouvant par exemple être inversées.The pins 18, 19 may be arranged differently, their positions being for example able to be reversed.

Claims (5)

  1. Power connector (13) for printed circuit, comprising:
    - an insulating base (14) provided with a bearing face (15) on the printed circuit and with a housing (16) associated with an opening (17) placed laterally,
    - at least one pin (18, 19) passing through the bearing face perpendicularly to the latter, characterized in that the said pin has a connection portion (22, 27) which extends in protrusion into the housing and has two faces (23, 28) parallel to a plane perpendicular to the opening,
    - the connector comprising an insulating support (31) arranged to be inserted at least partially into the housing through the opening,
    - and at least one plug (34) secured to the insulating support and provided with two flexible lugs (35) for being applied to the faces of the connection portion of the pin.
  2. Power connector according to Claim 1, characterized in that the pin (18, 19) comprises a lug that is cut out in a conductor board (8, 9) forming the printed circuit and is folded in order to extend perpendicular to the board.
  3. Power connector according to Claim 1 or Claim 2, characterized in that the pin (18, 19) comprises at least one anchoring notch (25, 30) in the insulating base (14).
  4. Power connector according to any one of Claims 1 to 3, characterized in that it comprises several pins (18, 19) placed in the insulating base (14) in at least a first row and a second row offset from one another, and several plugs (34) placed in a corresponding manner in the insulating support (31).
  5. Power connector according to Claim 4, characterized in that, the first row being adjacent to the opening (17), the pins (19) of this row have a lesser height than the height of the pins (18) of the second row.
EP02752881A 2001-03-21 2002-03-21 Power connector for a printed circuit Expired - Lifetime EP1371113B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0103808A FR2822598B1 (en) 2001-03-21 2001-03-21 POWER CONNECTOR FOR PRINTED CIRCUIT
FR0103808 2001-03-21
PCT/FR2002/000989 WO2002075855A1 (en) 2001-03-21 2002-03-21 Power connector for a printed circuit

Publications (2)

Publication Number Publication Date
EP1371113A1 EP1371113A1 (en) 2003-12-17
EP1371113B1 true EP1371113B1 (en) 2009-12-30

Family

ID=8861374

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02752881A Expired - Lifetime EP1371113B1 (en) 2001-03-21 2002-03-21 Power connector for a printed circuit

Country Status (7)

Country Link
US (1) US7147487B2 (en)
EP (1) EP1371113B1 (en)
JP (1) JP4152190B2 (en)
DE (1) DE60234913D1 (en)
ES (1) ES2338770T3 (en)
FR (1) FR2822598B1 (en)
WO (1) WO2002075855A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5248398B2 (en) * 2009-04-07 2013-07-31 富士通コンポーネント株式会社 connector

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3208026A (en) * 1961-10-31 1965-09-21 Elco Corp Protector of printed circuit contacts
US4678264A (en) * 1983-03-30 1987-07-07 Amp Incorporated Electrical and fiber optic connector assembly
US4742988A (en) * 1985-01-23 1988-05-10 Aisin Seiki Kabushikikaisha Electrical apparatus including solenoid device and energization control circuit therefor
KR920002053B1 (en) * 1986-12-19 1992-03-10 후아낙크가부시끼가이샤 Drive motor control unit
US4872844A (en) * 1988-07-08 1989-10-10 Amp Incorporated Component-carrying adapter for chip carrier socket
DE9103960U1 (en) * 1991-04-02 1991-06-27 Amp Inc., Harrisburg, Pa. PCB connectors
DE4307134C2 (en) * 1993-03-06 2002-04-04 Bosch Gmbh Robert Connector strip for electronic control devices in motor vehicles
US5364280A (en) * 1993-07-16 1994-11-15 Molex Incorporated Printed circuit board connector assembly
US5510960A (en) * 1994-08-05 1996-04-23 Square D Company Connector assembly for a motor control unit
DE9412680U1 (en) * 1994-08-05 1995-12-07 Weco Wester Ebbinghaus & Co Printed circuit connectors
US5685729A (en) * 1995-06-02 1997-11-11 General Motors Corporation Electrical connector and vent tube assembly with connector position assurance
SG101926A1 (en) * 1999-11-12 2004-02-27 Molex Inc Power connector
US6850417B2 (en) * 2001-07-17 2005-02-01 Dell Products L.P. Integrated expansion card slot status indicator and power actuator

Also Published As

Publication number Publication date
WO2002075855A1 (en) 2002-09-26
US7147487B2 (en) 2006-12-12
JP4152190B2 (en) 2008-09-17
FR2822598A1 (en) 2002-09-27
ES2338770T3 (en) 2010-05-12
DE60234913D1 (en) 2010-02-11
FR2822598B1 (en) 2003-06-20
JP2004530263A (en) 2004-09-30
EP1371113A1 (en) 2003-12-17
US20040105238A1 (en) 2004-06-03

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