EP3206259A1 - Electrical appliance with a terminal for connection by pressure mounted in a housing with two parts assembled in the direction of insertion of an electrical conductor in the connection terminal - Google Patents

Electrical appliance with a terminal for connection by pressure mounted in a housing with two parts assembled in the direction of insertion of an electrical conductor in the connection terminal Download PDF

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Publication number
EP3206259A1
EP3206259A1 EP16305167.5A EP16305167A EP3206259A1 EP 3206259 A1 EP3206259 A1 EP 3206259A1 EP 16305167 A EP16305167 A EP 16305167A EP 3206259 A1 EP3206259 A1 EP 3206259A1
Authority
EP
European Patent Office
Prior art keywords
contact spring
electrical
electrical conductor
connection terminal
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP16305167.5A
Other languages
German (de)
French (fr)
Other versions
EP3206259B1 (en
Inventor
Philippe France
Romain Villard
Moine GEOFFREY
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.)
ABB Schweiz AG
Original Assignee
ABB Schweiz AG
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 ABB Schweiz AG filed Critical ABB Schweiz AG
Priority to EP16305167.5A priority Critical patent/EP3206259B1/en
Priority to US15/432,540 priority patent/US10535932B2/en
Priority to CN201710080915.1A priority patent/CN107086395B/en
Publication of EP3206259A1 publication Critical patent/EP3206259A1/en
Application granted granted Critical
Publication of EP3206259B1 publication Critical patent/EP3206259B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/22—Bases, e.g. strip, block, panel
    • H01R9/24—Terminal blocks
    • H01R9/26—Clip-on terminal blocks for side-by-side rail- or strip-mounting
    • 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
    • H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure
    • H01R13/187—Pins, blades or sockets having separate spring member for producing or increasing contact pressure with spring member in the socket
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits or control means specially adapted for starting of engines
    • 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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • 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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/48185—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end
    • H01R4/4819—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end the spring shape allowing insertion of the conductor end when the spring is unbiased
    • H01R4/4821—Single-blade spring
    • 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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/484—Spring housing details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits or control means specially adapted for starting of engines
    • F02N2011/0881—Components of the circuit not provided for by previous groups
    • 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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/484—Spring housing details
    • H01R4/4842—Spring housing details the spring housing being provided with a single opening for insertion of a spring-activating tool

Definitions

  • the present invention relates to an electrical apparatus such as a contactor, comprising a housing formed of an electrically insulating material and at least one connection terminal mounted in the housing and intended to establish and maintain contact between an electrical conductor inserted into the terminal connection and an electrical connection bar mounted in the housing to provide an electrical connection between the electrical connection bar and the electrical conductor.
  • an electrical apparatus such as a contactor, comprising a housing formed of an electrically insulating material and at least one connection terminal mounted in the housing and intended to establish and maintain contact between an electrical conductor inserted into the terminal connection and an electrical connection bar mounted in the housing to provide an electrical connection between the electrical connection bar and the electrical conductor.
  • the electrical apparatus may alternatively be configured to constitute an engine starter.
  • the electrically insulating housing consists of a peripheral wall and a cover assembled to one another.
  • the elements of the connection terminal and the electrical connection strip can not be inserted laterally into the housing as is the case for example in the terminal blocks.
  • the elements of the connection terminal and the electrical connection strip are forced to be mounted in the housing in a direction of assembly substantially parallel to the direction in which the electrical conductor is intended to be inserted into the connection terminal.
  • This constraint provides a limitation in the freedom of design of the connection terminal and it may happen that the electrical appliance as a whole is not totally satisfactory, especially in terms of cost, simplicity of design and use, of ergonomics, bulk and weight.
  • the present invention aims to solve all or part of the disadvantages listed above.
  • an electrical device such as a contactor, comprising a housing formed in an electrically insulating material and at least one connection terminal mounted in the housing and intended to establish and maintain contact between an inserted electrical conductor in the connection terminal and an electrical connection bar mounted in the housing to provide a connection between the electrical connecting bar and the electrical conductor, the connection terminal being of the pressure type and comprising a contact spring configured so that the contact between the electrical conductor and the electrical connection strip results from a forced insertion. of the electrical conductor in opposition to the action of the contact spring and is automatically maintained by the contact spring after insertion of the electrical conductor.
  • the housing comprising a peripheral wall and a hood assembled to one another, at least one insertion opening for inserting the electrical conductor into the housing to the connection terminal is at least partially defined by the hood.
  • the peripheral wall and the cover are configured so as to be assembled to each other in a mounting direction forming an angle with the direction in which the electrical conductor is inserted into the connection terminal. having a value less than 30 °.
  • the contact spring and the housing can be configured so that the contact spring is mounted in the housing in a direction of mounting substantially parallel to the direction in which the electrical conductor is inserted into the connection terminal.
  • the electrical apparatus comprises blocking means integral with the cap configured to block the tilting of the contact spring relative to the box during the insertion of the electrical conductor into the connection terminal and during the removal of the conductor. electrical out of the connection terminal.
  • the locking means may comprise at least one first stop delimited by the cover and configured so that the contact spring automatically comes into abutment against the first stop to block the tilting of the contact spring in a first direction during the insertion of the electrical conductor in the connection terminal.
  • the first stop is arranged to lock the contact spring in a longitudinal direction and or in a transverse direction of at least one blade of the contact spring.
  • the contact spring may comprise an outgrowth extending laterally to the longitudinal direction of the blade and the first stop may come to bear against said protrusion at the time of blocking of the tilting of the contact spring in the first direction.
  • the contact spring comprises two blades interconnected by a connecting portion and the first stop is transversely inserted in a slot separating the two blades together in a lateral direction of the blades and comes longitudinally and or transversely bear against the connecting portion.
  • the locking means may comprise a second stop delimited by the cover and configured so that the contact spring automatically comes into abutment against the second stop to block the tilting of the contact spring in a second direction during the withdrawal of the electrical conductor out. from the connection terminal.
  • the second stop is located facing at least one blade of the contact spring in the transverse direction of said blade and is organized to lock the contact spring in the transverse direction.
  • the invention essentially relates to an electrical apparatus comprising a housing formed of an electrically insulating material.
  • the apparatus also comprises at least one connection terminal 10 mounted in the housing.
  • the connection terminal 10 is intended to establish and maintain a contact between an electrical conductor (not shown) inserted into the connection terminal 10 and an electrical connection bar 11 mounted in the housing, this physical contact having the function of ensuring an electrical connection between the electrical connection bar 11 and the electrical conductor.
  • the electrical apparatus can in particular and very advantageously be an electric contactor or a motor starter.
  • the electrical conductor may especially take the form of a wire, sheathed or not by an electrically insulating material.
  • the electrical apparatus may comprise a not shown operating element, the actuation of which selectively allows to establish or interrupt an electrical continuity.
  • the electrical apparatus may be configured to removably attach to a mounting rail on which a plurality of electrical appliances may be mounted side by side, the electrical appliances being identical or not to each other.
  • the housing comprises a peripheral wall (not shown) and a cover 12 assembled to one another. Therefore, the case is only partially represented on the Figures 1 to 3 , only the hood 12 being illustrated.
  • the housing comprises means for inserting the electrical conductor into the housing, these means comprising at least one insertion opening 20 for inserting the electrical conductor into the housing to the connection terminal 10. Said at least one insertion opening 20 is at least partially delimited by the cover 12.
  • this insertion opening 20 is entirely delimited by the cover 12.
  • the peripheral wall and the cover 12 are configured to be assembled to each other in a mounting direction 13 forming an angle with the direction 14 in which the electrical conductor is inserted into the connection terminal 10 having a value less than 30 °.
  • the mounting direction 13 is substantially parallel to the direction 14 in which the electrical conductor is inserted into the connection terminal 10.
  • substantially parallel here means “exactly parallel” or “parallel to within 5 °”.
  • the assembly of the cover 12 with the peripheral wall may be achieved by any suitable mechanism such as a latching system, screwing or equivalent.
  • the electrical connection strip 11 and the connection terminal 10 are both mounted in the cover 12 of the housing.
  • connection terminal 10 is of the pressure type and comprises a contact spring 15 configured so that the contact between the electrical conductor and the electrical connection strip 11 results from a force insertion of the electrical conductor in opposition to the action of the contact spring 15 and is automatically held by the contact spring 15 after insertion of the electrical conductor.
  • the insertion of the electrical conductor is practiced between a portion of the contact spring 15 and the electrical connection strip 11, so that the electrical conductor is directly gripped by and between these two parts.
  • connection terminal 10 This technology is also known in the technical field concerned here under the name of "push-in” in English terminology.
  • the establishment of the electrical conductor in the connection terminal 10 until the establishment and maintenance of the physical contact of the electrical conductor against the connecting strip 11 results from the fact that the electrical conductor is directly plugged between the spring of contact 15 of the connection terminal 10 adapted for this purpose and the connecting strip 11, under the effect of a force of insertion of the electrical conductor with respect to this contact spring 15.
  • the contact spring 15 is able to vary between a first rest configuration (represented on the Figures 1 to 3 ) from which it can open under the effect of the insertion action of the electrical conductor to occupy a second configuration (not shown) in which the contact spring 15 exerts a pressure force of the electrical conductor against the electrical connecting bar 11, and a third configuration in which the electrical conductor is free to be removed from the connection terminal 10.
  • the variation of the contact spring 15 from one configuration to another is practiced by elastic deformation at least one of its parts.
  • the contact spring 15 is configured to be continuously biased toward the first elastically resilient configuration of its material.
  • the pressure force exerted on the electrical conductor by the contact spring 15 in its second configuration is adapted to maintain the electrical conductor in the connection terminal 10, in particular by clamping between the contact spring 15 and the electrical connection bar 11, to prevent its axial withdrawal from the connection terminal 10.
  • the housing in particular its cover 12, defines an orifice 16 allowing the insertion of an unlocking tool (not shown) in the housing until it comes against the contact spring 15 in an area thereof such as the passage of the contact spring 15 to its third configuration results from a pressing action of the unlocking tool on this area of the contact spring 15 having an intensity greater than a predetermined value.
  • This predetermined value depends on the design and organization of the contact spring 15.
  • the contact spring 15 and the housing are configured so that the contact spring 15 is mounted in the housing, in particular in the cover 12, in a mounting direction 17 substantially parallel to the direction 14 in which the electrical conductor is inserted into the connection terminal 10.
  • the electrical apparatus comprises locking means integral with the cover 12 configured to block the tilting of the housing. contact spring 15 with respect to the housing during the insertion of the electrical conductor into the connection terminal 10 as well as during the withdrawal of the electrical conductor from the connection terminal 10.
  • the locking means comprise at least a first stop 18 defined by the cover 12 and configured so that the contact spring 15 automatically abuts against the first stop 18 to block the tilting of the contact spring.
  • a first direction S1 during the insertion of the electrical conductor into the connection terminal 10.
  • first stop 18 The nature and the design of the first stop 18 is not limiting in itself and it has however been found that good results were achieved when the first stop 18 is organized to lock the contact spring 15 in a longitudinal direction X and / or in a transverse direction Z of at least one blade 151 of the contact spring 15.
  • the contact spring 15 may comprise at least one blade 151, which can extend curvedly along its length to form a bend.
  • the end of the blade 151 constitutes the part of the contact spring 15 intended to bear against the electrical conductor in the second configuration of the spring 15.
  • At least the bent portion of each blade 151 forms the elastic portion dedicated to the passage of 15.
  • a "blade” corresponds to a substantially elongated portion, having a larger dimension than the other dimensions, comparable to its length.
  • the longitudinal direction X corresponds locally to the direction of extension or elongation of the blade 151, according to which the length is considered.
  • the smallest dimension of the blade similar to its thickness, is counted locally in the transverse direction Z.
  • the X and Z directions are included in a plane parallel to the directions 13, 14, 17 previously mentioned.
  • the direction simultaneously perpendicular to the longitudinal direction X of the blade 151 and its transverse direction Z is the lateral direction of the blade 151, extending horizontally on the figure 1 .
  • the dimension of the blade 151, counted in the lateral direction of the blade 151, is comparable to the width of the blade 151.
  • the length of the blade 151 in the longitudinal direction X is much greater the width of the blade 151 in its lateral direction, itself being much greater than the thickness of the blade 151 counted in the transverse direction Z.
  • the lateral direction is orthogonal to the directions 13, 14, 17 previously mentioned.
  • the contact spring 15 comprises an outgrowth extending laterally to the longitudinal direction X of the blade 151.
  • the first stop 18 comes to bear against this protrusion at the time of blocking the tilting of the contact spring 15 in the first direction S1.
  • this protrusion extends locally along the lateral direction of the blade 151. It comes from the material from the rest of the blade 151 and protrudes in the lateral direction relative to the remainder of the blade 151.
  • the first stop 18 delimited by the cover 12 is formed in such a way that this protrusion automatically comes into abutment against the first stop 18 during the passage of the contact spring 15 towards the second configuration or to the third configuration, in order to prevent the tilting of the contact spring 15 in the first direction S1.
  • the contact spring 15 comprises two blades 151 interconnected by a connecting portion 152.
  • the first stop 18 secured to the cover 12 transversely is inserted into a slot separating the two blades 151 between them in the lateral direction of the blades 151 and comes longitudinally and / or transversely bear against the connecting portion 152.
  • the contact spring 15 is mounted on the electrical connection strip 11. It is specified that the mounting of the contact spring 15 on the bar 11 is formed at the connecting portion 152 which comprises the mounting elements for this purpose.
  • the locking means comprise at least a second stop 19 delimited by the cover 12 and configured so that the contact spring 15 automatically stops against the second stop 19 in order to block the tilting of the contact spring 15 in a second direction S2, opposite the first direction S1, during the withdrawal of the electrical conductor from the connection terminal 10.
  • first direction S1 of tilting of the contact spring 15, prevented by the first stop 18, corresponds to a tilting of the spring 15 towards the front while the second direction S2 of tilting of the contact spring 15, inhibited by the second stop 19, corresponds to a tilting of the spring 15 towards the rear.
  • the cover 12 delimits two second stops 19, staggered for each blade 151 along its length, in particular in the zone extending between the bend that it forms and its end intended to exert pressure force on the electrical conductor.
  • each second stop 19 is located facing at least one of the blades 151 of the contact spring 15 in the transverse direction Z of this blade 151 and is arranged to lock the contact spring 15 in the transverse direction Z.
  • the invention which has just been described is an alternative solution to those of the prior art which provided for a blocking of the connection terminals by screwing. It reduces costs, space and weight. It is simple to design and use, while being user-friendly and ergonomic in practice.
  • each connection terminal 10 is of the pressure type, which makes it possible to achieve the results sought above in a very efficient manner, in particular when the cover and the peripheral wall of the insulating housing must be assembled in the same direction as the direction of insertion of the electrical conductor into the connection terminal, which is frequently the case for contactors or motor starters.
  • the tilting mounting and locking means 18, 19 of the contact spring 15 advantageously allow mounting of the connection terminal 10 of the pressure type and of the connecting strip 11 in the cover 12 in the same direction as the direction whereby the electrical conductor is inserted into the connection terminal and the cover 12 is assembled with the peripheral wall.
  • the attachment means of the contact spring conventionally used in the pressure connection terminals of the prior art impose a lateral mounting of the contact spring and the connecting strip in the housing in a lateral direction perpendicular to the insertion direction of the electrical conductor, which makes them unusable and unsuitable when, as is the case here, the cover 12 is assembled with the peripheral wall in the same direction as the insertion of the electrical conductor in the connection terminal .
  • the invention overcomes this problem.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Connection Or Junction Boxes (AREA)

Abstract

Un appareil électrique comprend un boitier formé dans un matériau électriquement isolant et au moins une borne de connexion (10) montée dans le boitier et destinée à établir et maintenir un contact entre un conducteur électrique inséré dans la borne de connexion (10) et une barrette de liaison électrique (11) montée dans le boitier pour assurer une connexion électrique entre la barrette de liaison électrique (11) et le conducteur électrique. La borne de connexion (10) est de type à pression et comprend un ressort de contact (15) configuré de sorte que le contact entre le conducteur électrique et la barrette de liaison électrique (11) résulte d'une insertion à force du conducteur électrique en opposition à l'action du ressort de contact (15) et est automatiquement maintenu par le ressort de contact (15) après insertion du conducteur électrique. Le boitier comprend une paroi périphérique et un capot (12) configurés de sorte à être assemblés l'un à l'autre suivant une direction de montage (13) sensiblement parallèle à la direction (14) dans laquelle le conducteur électrique est inséré dans la borne de connexion (10).

Figure imgaf001
An electrical apparatus comprises a housing formed of an electrically insulating material and at least one connection terminal (10) mounted in the housing for establishing and maintaining contact between an electrical conductor inserted into the connection terminal (10) and a bar electrical connection (11) mounted in the housing to provide an electrical connection between the electrical connection bar (11) and the electrical conductor. The connection terminal (10) is of the pressure type and comprises a contact spring (15) configured so that the contact between the electrical conductor and the electrical connection bar (11) results from a force insertion of the electrical conductor in opposition to the action of the contact spring (15) and is automatically held by the contact spring (15) after insertion of the electrical conductor. The housing comprises a peripheral wall and a cover (12) configured to be assembled to each other in a mounting direction (13) substantially parallel to the direction (14) in which the electrical conductor is inserted into the housing. connection terminal (10).
Figure imgaf001

Description

La présente invention concerne un appareil électrique tel qu'un contacteur, comprenant un boitier formé dans un matériau électriquement isolant et au moins une borne de connexion montée dans le boitier et destinée à établir et à maintenir un contact entre un conducteur électrique inséré dans la borne de connexion et une barrette de liaison électrique montée dans le boitier pour assurer une connexion électrique entre la barrette de liaison électrique et le conducteur électrique.The present invention relates to an electrical apparatus such as a contactor, comprising a housing formed of an electrically insulating material and at least one connection terminal mounted in the housing and intended to establish and maintain contact between an electrical conductor inserted into the terminal connection and an electrical connection bar mounted in the housing to provide an electrical connection between the electrical connection bar and the electrical conductor.

L'appareil électrique peut alternativement être configuré de sorte à constituer un démarreur de moteur.The electrical apparatus may alternatively be configured to constitute an engine starter.

De manière connue, dans la constitution de tels appareils électriques, le boitier électriquement isolant est constitué d'une paroi périphérique et d'un capot assemblés l'un à l'autre. Les éléments de la borne de connexion et la barrette de liaison électrique ne peuvent être insérés latéralement dans le boitier comme c'est le cas par exemple dans les blocs de jonction. Au contraire, les éléments de la borne de connexion et la barrette de liaison électrique sont contraints à être montés dans le boitier suivant une direction de montage sensiblement parallèle à la direction dans laquelle le conducteur électrique est prévu pour être inséré dans la borne de connexion.In known manner, in the constitution of such electrical devices, the electrically insulating housing consists of a peripheral wall and a cover assembled to one another. The elements of the connection terminal and the electrical connection strip can not be inserted laterally into the housing as is the case for example in the terminal blocks. On the contrary, the elements of the connection terminal and the electrical connection strip are forced to be mounted in the housing in a direction of assembly substantially parallel to the direction in which the electrical conductor is intended to be inserted into the connection terminal.

Cette contrainte apporte une limitation dans la liberté de conception de la borne de connexion et il peut advenir que l'appareil électrique dans son ensemble ne soit pas totalement satisfaisant, notamment en termes de coût, de simplicité de conception et d'utilisation, d'ergonomie, d'encombrement et de poids.This constraint provides a limitation in the freedom of design of the connection terminal and it may happen that the electrical appliance as a whole is not totally satisfactory, especially in terms of cost, simplicity of design and use, of ergonomics, bulk and weight.

La présente invention vise à résoudre tout ou partie des inconvénients listés ci-dessus.The present invention aims to solve all or part of the disadvantages listed above.

Dans ce contexte, il existe un besoin de fournir un appareil électrique correspondant au domaine technique présenté ci-dessus et qui permette de proposer une solution alternative aux solutions existantes, d'améliorer des caractéristiques telles que les coûts, l'encombrement et le poids, d'être simple de conception et d'utilisation, tout en étant conviviale et ergonomique en pratique.In this context, there is a need to provide an electrical appliance corresponding to the technical field presented above and which makes it possible to propose an alternative solution to existing solutions, to improve characteristics such as costs, space and weight, to be simple to design and use, while being user-friendly and ergonomic in practice.

A cet effet, il est proposé un appareil électrique tel qu'un contacteur, comprenant un boitier formé dans un matériau électriquement isolant et au moins une borne de connexion montée dans le boitier et destinée à établir et à maintenir un contact entre un conducteur électrique inséré dans la borne de connexion et une barrette de liaison électrique montée dans le boitier pour assurer une connexion électrique entre la barrette de liaison électrique et le conducteur électrique, la borne de connexion étant de type à pression et comprenant un ressort de contact configuré de sorte que le contact entre le conducteur électrique et la barrette de liaison électrique résulte d'une insertion à force du conducteur électrique en opposition à l'action du ressort de contact et est automatiquement maintenu par le ressort de contact après insertion du conducteur électrique.For this purpose, it is proposed an electrical device such as a contactor, comprising a housing formed in an electrically insulating material and at least one connection terminal mounted in the housing and intended to establish and maintain contact between an inserted electrical conductor in the connection terminal and an electrical connection bar mounted in the housing to provide a connection between the electrical connecting bar and the electrical conductor, the connection terminal being of the pressure type and comprising a contact spring configured so that the contact between the electrical conductor and the electrical connection strip results from a forced insertion. of the electrical conductor in opposition to the action of the contact spring and is automatically maintained by the contact spring after insertion of the electrical conductor.

Selon un mode de réalisation particulier, le boitier comprenant une paroi périphérique et un capot assemblés l'un à l'autre, au moins une ouverture d'insertion permettant d'insérer le conducteur électrique dans le boitier jusqu'à la borne de connexion est au moins partiellement délimitée par le capot.According to a particular embodiment, the housing comprising a peripheral wall and a hood assembled to one another, at least one insertion opening for inserting the electrical conductor into the housing to the connection terminal is at least partially defined by the hood.

Selon un autre mode de réalisation, la paroi périphérique et le capot sont configurés de sorte à être assemblés l'un à l'autre suivant une direction de montage formant un angle avec la direction dans laquelle le conducteur électrique est inséré dans la borne de connexion ayant une valeur inférieure à 30°.According to another embodiment, the peripheral wall and the cover are configured so as to be assembled to each other in a mounting direction forming an angle with the direction in which the electrical conductor is inserted into the connection terminal. having a value less than 30 °.

Le ressort de contact et le boitier peuvent être configurés de sorte que le ressort de contact soit monté dans le boitier suivant une direction de montage sensiblement parallèle à la direction dans laquelle le conducteur électrique est inséré dans la borne de connexion.The contact spring and the housing can be configured so that the contact spring is mounted in the housing in a direction of mounting substantially parallel to the direction in which the electrical conductor is inserted into the connection terminal.

Selon un mode de réalisation particulier, l'appareil électrique comprend des moyens de blocage solidaires du capot configurés pour bloquer le basculement du ressort de contact par rapport au boitier durant l'insertion du conducteur électrique dans la borne de connexion et durant le retrait du conducteur électrique hors de la borne de connexion.According to a particular embodiment, the electrical apparatus comprises blocking means integral with the cap configured to block the tilting of the contact spring relative to the box during the insertion of the electrical conductor into the connection terminal and during the removal of the conductor. electrical out of the connection terminal.

Les moyens de blocage peuvent comprendre au moins une première butée délimitée par le capot et configurée de sorte que le ressort de contact vienne automatiquement en butée contre la première butée afin de bloquer le basculement du ressort de contact dans un premier sens durant l'insertion du conducteur électrique dans la borne de connexion.The locking means may comprise at least one first stop delimited by the cover and configured so that the contact spring automatically comes into abutment against the first stop to block the tilting of the contact spring in a first direction during the insertion of the electrical conductor in the connection terminal.

Selon un autre mode de réalisation, la première butée est organisée pour bloquer le ressort de contact suivant une direction longitudinale et ou suivant une direction transversale d'au moins une lame du ressort de contact.According to another embodiment, the first stop is arranged to lock the contact spring in a longitudinal direction and or in a transverse direction of at least one blade of the contact spring.

Le ressort de contact peut comprendre une excroissance s'étendant latéralement à la direction longitudinale de la lame et la première butée peut venir prendre appui contre ladite excroissance au moment du blocage du basculement du ressort de contact dans le premier sens.The contact spring may comprise an outgrowth extending laterally to the longitudinal direction of the blade and the first stop may come to bear against said protrusion at the time of blocking of the tilting of the contact spring in the first direction.

Selon un mode de réalisation particulier, le ressort de contact comprend deux lames reliées entre elles par une portion de liaison et la première butée vient transversalement s'insérer dans une fente séparant les deux lames entre elles suivant une direction latérale des lames et vient longitudinalement et/ou transversalement prendre appui contre la portion de liaison.According to a particular embodiment, the contact spring comprises two blades interconnected by a connecting portion and the first stop is transversely inserted in a slot separating the two blades together in a lateral direction of the blades and comes longitudinally and or transversely bear against the connecting portion.

Les moyens de blocage peuvent comprendre une deuxième butée délimitée par le capot et configurée de sorte que le ressort de contact vienne automatiquement en butée contre la deuxième butée afin de bloquer le basculement du ressort de contact dans un deuxième sens durant le retrait du conducteur électrique hors de la borne de connexion.The locking means may comprise a second stop delimited by the cover and configured so that the contact spring automatically comes into abutment against the second stop to block the tilting of the contact spring in a second direction during the withdrawal of the electrical conductor out. from the connection terminal.

Selon un autre mode de réalisation, la deuxième butée est située en regard d'au moins une lame du ressort de contact suivant la direction transversale de ladite lame et est organisée pour bloquer le ressort de contact suivant la direction transversale.According to another embodiment, the second stop is located facing at least one blade of the contact spring in the transverse direction of said blade and is organized to lock the contact spring in the transverse direction.

L'invention sera bien comprise à l'aide de la description qui suit de modes particuliers de réalisation de l'invention donnés à titre d'exemples non limitatifs et représentés sur les dessins annexés, dans lesquels :

  • La figure 1 illustre en vue de côté le capot du boitier d'un exemple d'appareil électrique selon l'invention.
  • La figure 2 montre le capot de la figure 1 selon le plan de coupe A-A visible sur la figure 1.
  • La figure 3 montre le capot de la figure 1 selon le plan de coupe B-B visible sur la figure 1.
The invention will be better understood from the following description of particular embodiments of the invention given by way of non-limiting example and shown in the accompanying drawings, in which:
  • The figure 1 illustrates in side view the housing cover of an example of electrical apparatus according to the invention.
  • The figure 2 shows the hood of the figure 1 according to the cutting plane AA visible on the figure 1 .
  • The figure 3 shows the hood of the figure 1 according to the BB cutting plane visible on the figure 1 .

En référence aux figures 1 à 3 annexées telles que présentées sommairement ci-dessus, l'invention concerne essentiellement un appareil électrique comprenant un boitier formé dans un matériau électriquement isolant. L'appareil comprend également au moins une borne de connexion 10 montée dans le boitier. La borne de connexion 10 est destinée à établir et à maintenir un contact entre un conducteur électrique (non représenté) inséré dans la borne de connexion 10 et une barrette de liaison électrique 11 montée dans le boitier, ce contact physique ayant pour fonction d'assurer une connexion électrique entre la barrette de liaison électrique 11 et le conducteur électrique.With reference to Figures 1 to 3 appended hereto as summarized above, the invention essentially relates to an electrical apparatus comprising a housing formed of an electrically insulating material. The apparatus also comprises at least one connection terminal 10 mounted in the housing. The connection terminal 10 is intended to establish and maintain a contact between an electrical conductor (not shown) inserted into the connection terminal 10 and an electrical connection bar 11 mounted in the housing, this physical contact having the function of ensuring an electrical connection between the electrical connection bar 11 and the electrical conductor.

L'appareil électrique peut notamment et très avantageusement être un contacteur électrique ou un démarreur de moteur.The electrical apparatus can in particular and very advantageously be an electric contactor or a motor starter.

Le conducteur électrique peut notamment prendre la forme d'un fil, gainé ou non par un matériau électriquement isolant.The electrical conductor may especially take the form of a wire, sheathed or not by an electrically insulating material.

Dans le cas où l'appareil électrique est de type contacteur électrique, il peut comprendre un élément de manoeuvre non représenté, dont l'actionnement permet sélectivement d'établir ou d'interrompre une continuité électrique. L'appareil électrique peut être configuré pour venir se fixer de manière démontable sur un rail de fixation sur lequel plusieurs appareils électriques peuvent être montés côte à côte, ces appareils électriques étant identiques ou non entre eux.In the case where the electrical apparatus is of the electric contactor type, it may comprise a not shown operating element, the actuation of which selectively allows to establish or interrupt an electrical continuity. The electrical apparatus may be configured to removably attach to a mounting rail on which a plurality of electrical appliances may be mounted side by side, the electrical appliances being identical or not to each other.

Le boitier comprend une paroi périphérique (non représentée) et un capot 12 assemblés l'un à l'autre. Par conséquent, le boitier n'est que partiellement représenté sur les figures 1 à 3, seul le capot 12 étant illustré. Le boitier comprend des moyens permettant d'insérer le conducteur électrique dans le boitier, ces moyens comprenant au moins une ouverture d'insertion 20 permettant d'insérer le conducteur électrique dans le boitier jusqu'à la borne de connexion 10. Ladite au moins une ouverture d'insertion 20 est au moins partiellement délimitée par le capot 12.The housing comprises a peripheral wall (not shown) and a cover 12 assembled to one another. Therefore, the case is only partially represented on the Figures 1 to 3 , only the hood 12 being illustrated. The housing comprises means for inserting the electrical conductor into the housing, these means comprising at least one insertion opening 20 for inserting the electrical conductor into the housing to the connection terminal 10. Said at least one insertion opening 20 is at least partially delimited by the cover 12.

Dans la variante illustrée, avantageuse mais non exclusive, cette ouverture d'insertion 20 est intégralement délimitée par le capot 12.In the illustrated variant, advantageous but not exclusive, this insertion opening 20 is entirely delimited by the cover 12.

La paroi périphérique et le capot 12 sont configurés de sorte à être assemblés l'un à l'autre suivant une direction de montage 13 formant un angle avec la direction 14 dans laquelle le conducteur électrique est inséré dans la borne de connexion 10 ayant une valeur inférieure à 30°.The peripheral wall and the cover 12 are configured to be assembled to each other in a mounting direction 13 forming an angle with the direction 14 in which the electrical conductor is inserted into the connection terminal 10 having a value less than 30 °.

Dans un cas particulier, la direction de montage 13 est sensiblement parallèle à la direction 14 dans laquelle le conducteur électrique est inséré dans la borne de connexion 10.In a particular case, the mounting direction 13 is substantially parallel to the direction 14 in which the electrical conductor is inserted into the connection terminal 10.

Le terme « sensiblement parallèle » signifie ici « exactement parallèle » ou « parallèle à 5° près ».The term "substantially parallel" here means "exactly parallel" or "parallel to within 5 °".

L'assemblage du capot 12 avec la paroi périphérique peut être réalisé par tout mécanisme adapté tel qu'un système d'encliquetage, de vissage ou équivalent.The assembly of the cover 12 with the peripheral wall may be achieved by any suitable mechanism such as a latching system, screwing or equivalent.

La barrette de liaison électrique 11 et la borne de connexion 10 sont toutes deux montées dans le capot 12 du boitier.The electrical connection strip 11 and the connection terminal 10 are both mounted in the cover 12 of the housing.

La borne de connexion 10 est de type à pression et comprend un ressort de contact 15 configuré de sorte que le contact entre le conducteur électrique et la barrette de liaison électrique 11 résulte d'une insertion à force du conducteur électrique en opposition à l'action du ressort de contact 15 et est automatiquement maintenu par le ressort de contact 15 après l'insertion du conducteur électrique. L'insertion du conducteur électrique se pratique entre une partie du ressort de contact 15 et la barrette de liaison électrique 11, de sorte que le conducteur électrique est directement enserré par et entre ces deux pièces.The connection terminal 10 is of the pressure type and comprises a contact spring 15 configured so that the contact between the electrical conductor and the electrical connection strip 11 results from a force insertion of the electrical conductor in opposition to the action of the contact spring 15 and is automatically held by the contact spring 15 after insertion of the electrical conductor. The insertion of the electrical conductor is practiced between a portion of the contact spring 15 and the electrical connection strip 11, so that the electrical conductor is directly gripped by and between these two parts.

Cette technologie est également connue dans le domaine technique concerné ici sous le nom de « push-in » en terminologie anglo-saxonne. La mise en place du conducteur électrique dans la borne de connexion 10 jusqu'à l'établissement et le maintien du contact physique du conducteur électrique contre la barrette de liaison 11 résulte du fait que le conducteur électrique vient directement s'enficher entre le ressort de contact 15 de la borne de connexion 10 adapté à cet effet et la barrette de liaison 11, sous l'effet d'un effort d'insertion du conducteur électrique par rapport à ce ressort de contact 15.This technology is also known in the technical field concerned here under the name of "push-in" in English terminology. The establishment of the electrical conductor in the connection terminal 10 until the establishment and maintenance of the physical contact of the electrical conductor against the connecting strip 11 results from the fact that the electrical conductor is directly plugged between the spring of contact 15 of the connection terminal 10 adapted for this purpose and the connecting strip 11, under the effect of a force of insertion of the electrical conductor with respect to this contact spring 15.

Le ressort de contact 15 est apte à varier entre une première configuration de repos (représentée sur les figures 1 à 3) à partir de laquelle il peut s'ouvrir sous l'effet de l'action d'insertion du conducteur électrique pour venir occuper une deuxième configuration (non représentée) dans laquelle le ressort de contact 15 exerce une force de pression du conducteur électrique contre la barrette de liaison électrique 11, et une troisième configuration dans laquelle le conducteur électrique est libre d'être retiré hors de la borne de connexion 10. La variation du ressort de contact 15 d'une configuration à l'autre se pratique par déformation élastique d'au moins une de ses parties. Le ressort de contact 15 est configuré de sorte à être continuellement sollicité vers la première configuration par rappel élastique de sa matière. La force de pression exercée sur le conducteur électrique par le ressort de contact 15 dans sa deuxième configuration est adaptée pour assurer le maintien du conducteur électrique dans la borne de connexion 10, notamment par serrage entre le ressort de contact 15 et la barrette de liaison électrique 11, pour éviter son retrait axial hors de la borne de connexion 10.The contact spring 15 is able to vary between a first rest configuration (represented on the Figures 1 to 3 ) from which it can open under the effect of the insertion action of the electrical conductor to occupy a second configuration (not shown) in which the contact spring 15 exerts a pressure force of the electrical conductor against the electrical connecting bar 11, and a third configuration in which the electrical conductor is free to be removed from the connection terminal 10. The variation of the contact spring 15 from one configuration to another is practiced by elastic deformation at least one of its parts. The contact spring 15 is configured to be continuously biased toward the first elastically resilient configuration of its material. The pressure force exerted on the electrical conductor by the contact spring 15 in its second configuration is adapted to maintain the electrical conductor in the connection terminal 10, in particular by clamping between the contact spring 15 and the electrical connection bar 11, to prevent its axial withdrawal from the connection terminal 10.

Le boitier, notamment son capot 12, délimite un orifice 16 permettant l'insertion d'un outil de déverrouillage (non représenté) dans le boitier jusqu'à venir contre le ressort de contact 15 dans une zone de celui-ci telle que le passage du ressort de contact 15 vers sa troisième configuration résulte d'une action de pression de l'outil de déverrouillage sur cette zone du ressort de contact 15 ayant une intensité supérieure à une valeur prédéterminée. Cette valeur prédéterminée dépend de la conception et de l'organisation du ressort de contact 15.The housing, in particular its cover 12, defines an orifice 16 allowing the insertion of an unlocking tool (not shown) in the housing until it comes against the contact spring 15 in an area thereof such as the passage of the contact spring 15 to its third configuration results from a pressing action of the unlocking tool on this area of the contact spring 15 having an intensity greater than a predetermined value. This predetermined value depends on the design and organization of the contact spring 15.

Selon un mode de réalisation particulier non limitatif, le ressort de contact 15 et le boitier sont configurés de sorte que le ressort de contact 15 est monté dans le boitier, notamment dans le capot 12, suivant une direction de montage 17 sensiblement parallèle à la direction 14 dans laquelle le conducteur électrique est inséré dans la borne de connexion 10.According to a particular nonlimiting embodiment, the contact spring 15 and the housing are configured so that the contact spring 15 is mounted in the housing, in particular in the cover 12, in a mounting direction 17 substantially parallel to the direction 14 in which the electrical conductor is inserted into the connection terminal 10.

Afin de stabiliser le ressort de contact 15 par rapport au boitier, notamment en terme de rotation ou de translation dans l'espace par rapport au capot 12, l'appareil électrique comprend des moyens de blocage solidaires du capot 12 configurés pour bloquer le basculement du ressort de contact 15 par rapport au boitier durant l'insertion du conducteur électrique dans la borne de connexion 10 ainsi que durant le retrait du conducteur électrique hors de la borne de connexion 10.In order to stabilize the contact spring 15 with respect to the housing, in particular in terms of rotation or translation in space with respect to the cover 12, the electrical apparatus comprises locking means integral with the cover 12 configured to block the tilting of the housing. contact spring 15 with respect to the housing during the insertion of the electrical conductor into the connection terminal 10 as well as during the withdrawal of the electrical conductor from the connection terminal 10.

Pour conférer une telle fonction, les moyens de blocage comprennent au moins une première butée 18 délimitée par le capot 12 et configurée de sorte que le ressort de contact 15 vient automatiquement en butée contre la première butée 18 afin de bloquer le basculement du ressort de contact 15 dans un premier sens S1 durant l'insertion du conducteur électrique dans la borne de connexion 10.To provide such a function, the locking means comprise at least a first stop 18 defined by the cover 12 and configured so that the contact spring 15 automatically abuts against the first stop 18 to block the tilting of the contact spring. In a first direction S1 during the insertion of the electrical conductor into the connection terminal 10.

La nature et la conception de la première butée 18 n'est pas limitative en soi et il a toutefois été constaté que de bons résultats étaient atteints lorsque la première butée 18 est organisée pour bloquer le ressort de contact 15 suivant une direction longitudinale X et/ou suivant une direction transversale Z d'au moins une lame 151 du ressort de contact 15.The nature and the design of the first stop 18 is not limiting in itself and it has however been found that good results were achieved when the first stop 18 is organized to lock the contact spring 15 in a longitudinal direction X and / or in a transverse direction Z of at least one blade 151 of the contact spring 15.

Autrement dit, le ressort de contact 15 peut comprendre au moins une lame 151, pouvant s'étendre de manière recourbée suivant sa longueur pour former un coude. L'extrémité de la lame 151 constitue la partie du ressort de contact 15 destinée à venir en appui contre le conducteur électrique dans la deuxième configuration du ressort 15. Au moins la partie coudée de chaque lame 151 forme la partie élastique dédiée au passage d'une configuration à l'autre du ressort de contact 15. Une « lame » correspond à une partie sensiblement allongée, ayant une dimension plus grande que les autres dimensions, assimilable à sa longueur. La direction longitudinale X correspond localement à la direction d'extension ou d'allongement de la lame 151, suivant laquelle est considérée la longueur. La dimension la plus petite de la lame, assimilable à son épaisseur, est comptée localement suivant la direction transversale Z. Les directions X et Z sont incluses dans un plan parallèle aux directions 13, 14, 17 précédemment évoquées. La direction simultanément perpendiculaire à la direction longitudinale X de la lame 151 et à sa direction transversale Z est la direction latérale de la lame 151, s'étendant horizontalement sur la figure 1. La dimension de la lame 151, comptée suivant la direction latérale de la lame 151, est assimilable à la largeur de la lame 151. La longueur de la lame 151 suivant la direction longitudinale X est largement supérieure à la largeur de la lame 151 suivant sa direction latérale, elle-même étant largement supérieure à l'épaisseur de la lame 151 comptée suivant la direction transversale Z. La direction latérale est orthogonale aux directions 13, 14, 17 précédemment évoquées.In other words, the contact spring 15 may comprise at least one blade 151, which can extend curvedly along its length to form a bend. The end of the blade 151 constitutes the part of the contact spring 15 intended to bear against the electrical conductor in the second configuration of the spring 15. At least the bent portion of each blade 151 forms the elastic portion dedicated to the passage of 15. A "blade" corresponds to a substantially elongated portion, having a larger dimension than the other dimensions, comparable to its length. The longitudinal direction X corresponds locally to the direction of extension or elongation of the blade 151, according to which the length is considered. The smallest dimension of the blade, similar to its thickness, is counted locally in the transverse direction Z. The X and Z directions are included in a plane parallel to the directions 13, 14, 17 previously mentioned. The direction simultaneously perpendicular to the longitudinal direction X of the blade 151 and its transverse direction Z is the lateral direction of the blade 151, extending horizontally on the figure 1 . The dimension of the blade 151, counted in the lateral direction of the blade 151, is comparable to the width of the blade 151. The length of the blade 151 in the longitudinal direction X is much greater the width of the blade 151 in its lateral direction, itself being much greater than the thickness of the blade 151 counted in the transverse direction Z. The lateral direction is orthogonal to the directions 13, 14, 17 previously mentioned.

Selon un mode de réalisation à la fois simple et efficace, le ressort de contact 15 comprend une excroissance s'étendant latéralement à la direction longitudinale X de la lame 151. La première butée 18 vient prendre appui contre cette excroissance au moment du blocage du basculement du ressort de contact 15 dans le premier sens S1. Autrement dit, cette excroissance s'étend localement suivant la direction latérale de la lame 151. Elle vient de matière depuis le reste de la lame 151 et s'étend en saillie suivant la direction latérale par rapport au reste de la lame 151. La première butée 18 délimitée par le capot 12 est formée de manière idoine pour que cette excroissance vienne automatiquement en appui contre la première butée 18 durant le passage du ressort de contact 15 vers la deuxième configuration ou vers la troisième configuration, afin d'éviter le basculement du ressort de contact 15 suivant le premier sens S1.According to an embodiment that is both simple and effective, the contact spring 15 comprises an outgrowth extending laterally to the longitudinal direction X of the blade 151. The first stop 18 comes to bear against this protrusion at the time of blocking the tilting of the contact spring 15 in the first direction S1. In other words, this protrusion extends locally along the lateral direction of the blade 151. It comes from the material from the rest of the blade 151 and protrudes in the lateral direction relative to the remainder of the blade 151. The first stop 18 delimited by the cover 12 is formed in such a way that this protrusion automatically comes into abutment against the first stop 18 during the passage of the contact spring 15 towards the second configuration or to the third configuration, in order to prevent the tilting of the contact spring 15 in the first direction S1.

Bien qu'il soit possible que le nombre de lame 151 soit strictement égal à 1, la variante représentée prévoit que le ressort de contact 15 comprenne deux lames 151 reliées entre elles par une portion de liaison 152. La première butée 18 solidaire du capot 12 vient transversalement s'insérer dans une fente séparant les deux lames 151 entre elles suivant la direction latérale des lames 151 et vient longitudinalement et/ou transversalement prendre appui contre la portion de liaison 152.Although it is possible that the number of blades 151 is strictly equal to 1, the variant shown provides that the contact spring 15 comprises two blades 151 interconnected by a connecting portion 152. The first stop 18 secured to the cover 12 transversely is inserted into a slot separating the two blades 151 between them in the lateral direction of the blades 151 and comes longitudinally and / or transversely bear against the connecting portion 152.

Le ressort de contact 15 est monté sur la barrette de liaison électrique 11. Il est précisé que le montage du ressort de contact 15 sur la barrette 11 est réalisé au niveau de la portion de liaison 152 qui comprend les éléments de montage à cet effet.The contact spring 15 is mounted on the electrical connection strip 11. It is specified that the mounting of the contact spring 15 on the bar 11 is formed at the connecting portion 152 which comprises the mounting elements for this purpose.

En complément, les moyens de blocage comprennent au moins une deuxième butée 19 délimitée par le capot 12 et configurée de sorte que le ressort de contact 15 vient automatiquement en butée contre la deuxième butée 19 afin de bloquer le basculement du ressort de contact 15 dans un deuxième sens S2, opposé au premier sens S1, durant le retrait du conducteur électrique hors de la borne de connexion 10.In addition, the locking means comprise at least a second stop 19 delimited by the cover 12 and configured so that the contact spring 15 automatically stops against the second stop 19 in order to block the tilting of the contact spring 15 in a second direction S2, opposite the first direction S1, during the withdrawal of the electrical conductor from the connection terminal 10.

Finalement, le premier sens S1 de basculement du ressort de contact 15, empêché par la première butée 18, correspond à un basculement du ressort 15 vers l'avant tandis que le deuxième sens S2 de basculement du ressort de contact 15, inhibé par la deuxième butée 19, correspond à un basculement du ressort 15 vers l'arrière.Finally, the first direction S1 of tilting of the contact spring 15, prevented by the first stop 18, corresponds to a tilting of the spring 15 towards the front while the second direction S2 of tilting of the contact spring 15, inhibited by the second stop 19, corresponds to a tilting of the spring 15 towards the rear.

Dans la variante illustrée sur les figures, le capot 12 délimite deux deuxièmes butées 19, échelonnées pour chaque lame 151 le long de sa longueur, en particulier dans la zone s'étendant entre le coude qu'elle forme et son extrémité destinée à exercer l'effort de pression sur le conducteur électrique.In the variant illustrated in the figures, the cover 12 delimits two second stops 19, staggered for each blade 151 along its length, in particular in the zone extending between the bend that it forms and its end intended to exert pressure force on the electrical conductor.

Bien que le nombre, la nature et la conception de chaque deuxième butée 19 ne soient en aucun cas limitatifs, la variante illustrée prévoit que la deuxième butée 19 est située en regard d'au moins l'une des lames 151 du ressort de contact 15 suivant la direction transversale Z de cette lame 151 et est organisée pour bloquer le ressort de contact 15 suivant la direction transversale Z.Although the number, the nature and the design of each second stop 19 are in no way limiting, the variant illustrated provides that the second stop 19 is located facing at least one of the blades 151 of the contact spring 15 in the transverse direction Z of this blade 151 and is arranged to lock the contact spring 15 in the transverse direction Z.

L'invention qui vient d'être décrite est une solution alternative à celles de l'art antérieur qui prévoyaient un blocage des bornes de connexion par vissage. Elle permet une réduction des coûts, de l'encombrement et de poids. Elle est simple de conception et d'utilisation, tout en étant conviviale et ergonomique en pratique.The invention which has just been described is an alternative solution to those of the prior art which provided for a blocking of the connection terminals by screwing. It reduces costs, space and weight. It is simple to design and use, while being user-friendly and ergonomic in practice.

Avantageusement, chaque borne de connexion 10 est de type à pression, ce qui permet de parvenir aux résultats recherchés ci-dessus de manière très efficace, en particulier lorsque le capot et la paroi périphérique du boitier isolant doivent être assemblés dans la même direction que la direction d'insertion du conducteur électrique dans la borne de connexion, ce qui est le cas fréquemment pour les contacteurs ou les démarreurs de moteur. Les moyens de montage et de blocage de basculement 18, 19 du ressort de contact 15 permettent très avantageusement un montage de la borne de connexion 10 de type à pression et de la barrette de liaison 11 dans le capot 12 dans la même direction que la direction suivant laquelle le conducteur électrique est inséré dans la borne de connexion et que le capot 12 est assemblé avec la paroi périphérique.Advantageously, each connection terminal 10 is of the pressure type, which makes it possible to achieve the results sought above in a very efficient manner, in particular when the cover and the peripheral wall of the insulating housing must be assembled in the same direction as the direction of insertion of the electrical conductor into the connection terminal, which is frequently the case for contactors or motor starters. The tilting mounting and locking means 18, 19 of the contact spring 15 advantageously allow mounting of the connection terminal 10 of the pressure type and of the connecting strip 11 in the cover 12 in the same direction as the direction whereby the electrical conductor is inserted into the connection terminal and the cover 12 is assembled with the peripheral wall.

Il est rappelé que les moyens de fixation du ressort de contact classiquement utilisés dans les bornes de connexion à pression de l'art antérieur imposent un montage latéral du ressort de contact et de la barrette de liaison dans le boitier suivant une direction latérale perpendiculaire à la direction d'insertion du conducteur électrique, ce qui les rend inutilisables et inadaptés lorsque, comme c'est le cas ici, le capot 12 est assemblé avec la paroi périphérique dans la même direction que l'insertion du conducteur électrique dans la borne de connexion. L'invention lève ce problème.It is recalled that the attachment means of the contact spring conventionally used in the pressure connection terminals of the prior art impose a lateral mounting of the contact spring and the connecting strip in the housing in a lateral direction perpendicular to the insertion direction of the electrical conductor, which makes them unusable and unsuitable when, as is the case here, the cover 12 is assembled with the peripheral wall in the same direction as the insertion of the electrical conductor in the connection terminal . The invention overcomes this problem.

Claims (11)

Appareil électrique tel qu'un contacteur, comprenant un boitier formé dans un matériau électriquement isolant et au moins une borne de connexion (10) montée dans le boitier et destinée à établir et à maintenir un contact entre un conducteur électrique inséré dans la borne de connexion (10) et une barrette de liaison électrique (11) montée dans le boitier pour assurer une connexion électrique entre la barrette de liaison électrique (11) et le conducteur électrique, caractérisé en ce que la borne de connexion (10) est de type à pression et comprend un ressort de contact (15) configuré de sorte que le contact entre le conducteur électrique et la barrette de liaison électrique (11) résulte d'une insertion à force du conducteur électrique en opposition à l'action du ressort de contact (15) et est automatiquement maintenu par le ressort de contact (15) après insertion du conducteur électrique.An electrical apparatus such as a contactor, comprising a housing formed of an electrically insulating material and at least one connection terminal (10) mounted in the housing for establishing and maintaining contact between an electrical conductor inserted in the connection terminal (10) and an electrical connection strip (11) mounted in the housing to provide an electrical connection between the electrical connection bar (11) and the electrical conductor, characterized in that the connection terminal (10) is of the type pressure and comprises a contact spring (15) configured so that the contact between the electrical conductor and the electrical connection strip (11) results from a force insertion of the electrical conductor in opposition to the action of the contact spring ( 15) and is automatically held by the contact spring (15) after insertion of the electrical conductor. Appareil électrique selon la revendication 1, caractérisé en ce que le boitier comprenant une paroi périphérique et un capot (12) assemblés l'un à l'autre, au moins une ouverture d'insertion (20) permettant d'insérer le conducteur électrique dans le boitier jusqu'à la borne de connexion est au moins partiellement délimitée par le capot (12).Electrical apparatus according to claim 1, characterized in that the housing comprising a peripheral wall and a cover (12) assembled to each other, at least one insertion opening (20) for inserting the electrical conductor into the housing to the connection terminal is at least partially defined by the cover (12). Appareil électrique selon l'une des revendications 1 ou 2, caractérisé en ce que la paroi périphérique et le capot (12) sont configurés de sorte à être assemblés l'un à l'autre suivant une direction de montage (13) formant un angle avec la direction (14) dans laquelle le conducteur électrique est inséré dans la borne de connexion (10) ayant une valeur inférieure à 30°.Electrical apparatus according to one of claims 1 or 2, characterized in that the peripheral wall and the cover (12) are configured to be assembled to each other in a mounting direction (13) forming an angle with the direction (14) in which the electrical conductor is inserted into the connection terminal (10) having a value of less than 30 °. Appareil électrique selon l'une des revendications 1 à 3, caractérisé en ce que le ressort de contact (15) et le boitier sont configurés de sorte que le ressort de contact (15) est monté dans le boitier suivant une direction de montage (17) sensiblement parallèle à la direction (14) dans laquelle le conducteur électrique est inséré dans la borne de connexion (10).Electrical device according to one of claims 1 to 3, characterized in that the contact spring (15) and the housing are configured so that the contact spring (15) is mounted in the housing in a mounting direction (17). ) substantially parallel to the direction (14) in which the electrical conductor is inserted into the connection terminal (10). Appareil électrique selon l'une quelconque des revendications 1 à 4, caractérisé en ce qu'il comprend des moyens de blocage (18, 19) solidaires du capot (12) configurés pour bloquer le basculement du ressort de contact (15) par rapport au boitier durant l'insertion du conducteur électrique dans la borne de connexion (10) et durant le retrait du conducteur électrique hors de la borne de connexion (10).Electrical device according to any one of claims 1 to 4, characterized in that it comprises locking means (18, 19) integral with the cover (12) configured to block the tilting of the contact spring (15) relative to the housing during insertion of the electrical conductor into the connection terminal (10) and during removal of the electrical conductor from the connection terminal (10). Appareil électrique selon la revendication 5, caractérisé en ce que les moyens de blocage (18, 19) comprennent au moins une première butée (18) délimitée par le capot (12) et configurée de sorte que le ressort de contact (15) vient automatiquement en butée contre la première butée (18) afin de bloquer le basculement du ressort de contact (15) dans un premier sens (S1) durant l'insertion du conducteur électrique dans la borne de connexion (10).Electrical device according to claim 5, characterized in that the locking means (18, 19) comprise at least a first stop (18) delimited by the cover (12) and configured so that the contact spring (15) comes automatically abutting against the first stop (18) to block the tilting of the contact spring (15) in a first direction (S1) during insertion of the electrical conductor into the connection terminal (10). Appareil électrique selon la revendication 6, caractérisé en ce que la première butée (18) est organisée pour bloquer le ressort de contact (15) suivant une direction longitudinale (X) et ou suivant une direction transversale (Z) d'au moins une lame (151) du ressort de contact (15).Electrical apparatus according to claim 6, characterized in that the first stop (18) is arranged to lock the contact spring (15) in a longitudinal direction (X) and or in a transverse direction (Z) of at least one blade (151) of the contact spring (15). Appareil électrique selon la revendication 7, caractérisé en ce que le ressort de contact (15) comprend une excroissance s'étendant latéralement à la direction longitudinale (X) de la lame (151) et en ce que la première butée (18) vient prendre appui contre ladite excroissance au moment du blocage du basculement du ressort de contact (15) dans le premier sens (S1).Electrical apparatus according to claim 7, characterized in that the contact spring (15) comprises an outgrowth extending laterally to the longitudinal direction (X) of the blade (151) and in that the first stop (18) comes to grip bearing against said protrusion at the time of blocking the tilting of the contact spring (15) in the first direction (S1). Appareil électrique selon l'une des revendications 7 ou 8, caractérisé en ce que le ressort de contact (15) comprend deux lames (151) reliées entre elles par une portion de liaison (152) et en ce que la première butée (18) vient transversalement s'insérer dans une fente séparant les deux lames (151) entre elles suivant une direction latérale des lames et vient longitudinalement et/ou transversalement prendre appui contre la portion de liaison (152).Electrical device according to one of claims 7 or 8, characterized in that the contact spring (15) comprises two blades (151) interconnected by a connecting portion (152) and in that the first stop (18) transversely is inserted into a slot separating the two blades (151) between them in a lateral direction of the blades and comes longitudinally and / or transversely bear against the connecting portion (152). Appareil électrique selon l'une quelconque des revendications 5 à 9, caractérisé en ce que les moyens de blocage (18, 19) comprennent une deuxième butée (19) délimitée par le capot (12) et configurée de sorte que le ressort de contact (15) vient automatiquement en butée contre la deuxième butée (19) afin de bloquer le basculement du ressort de contact (15) dans un deuxième sens (S2) durant le retrait du conducteur électrique hors de la borne de connexion (10).Electrical device according to any one of claims 5 to 9, characterized in that the locking means (18, 19) comprise a second stop (19) delimited by the cover (12) and configured so that the contact spring ( 15) automatically abuts against the second stop (19) to block the tilting of the contact spring (15) in a second direction (S2) during removal of the electrical conductor from the connection terminal (10). Appareil électrique selon la revendication 10, caractérisé en ce que la deuxième butée (19) est située en regard d'au moins une lame (151) du ressort de contact (15) suivant la direction transversale (Y) de ladite lame (151) et est organisée pour bloquer le ressort de contact (15) suivant la direction transversale (Y).Electrical apparatus according to claim 10, characterized in that the second stop (19) is located facing at least one blade (151) of the contact spring (15) in the transverse direction (Y) of said blade (151) and is arranged to lock the contact spring (15) in the transverse direction (Y).
EP16305167.5A 2016-02-15 2016-02-15 Electrical contactor with a terminal for connection by pressure mounted in a housing with two parts assembled in the direction of insertion of an electrical conductor in the connection terminal Active EP3206259B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP16305167.5A EP3206259B1 (en) 2016-02-15 2016-02-15 Electrical contactor with a terminal for connection by pressure mounted in a housing with two parts assembled in the direction of insertion of an electrical conductor in the connection terminal
US15/432,540 US10535932B2 (en) 2016-02-15 2017-02-14 Electric apparatus with a push-in connection terminal mounted in a casing with two portions assembled along the insertion direction of an electrical conductor in the connection terminal
CN201710080915.1A CN107086395B (en) 2016-02-15 2017-02-15 Electrical device with embedded terminal mounted in housing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16305167.5A EP3206259B1 (en) 2016-02-15 2016-02-15 Electrical contactor with a terminal for connection by pressure mounted in a housing with two parts assembled in the direction of insertion of an electrical conductor in the connection terminal

Publications (2)

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EP3206259A1 true EP3206259A1 (en) 2017-08-16
EP3206259B1 EP3206259B1 (en) 2020-12-30

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EP16305167.5A Active EP3206259B1 (en) 2016-02-15 2016-02-15 Electrical contactor with a terminal for connection by pressure mounted in a housing with two parts assembled in the direction of insertion of an electrical conductor in the connection terminal

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US (1) US10535932B2 (en)
EP (1) EP3206259B1 (en)
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Also Published As

Publication number Publication date
CN107086395B (en) 2020-07-10
US10535932B2 (en) 2020-01-14
CN107086395A (en) 2017-08-22
US20170237184A1 (en) 2017-08-17
EP3206259B1 (en) 2020-12-30

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