EP3520177A1 - Elektrisches verbindungssystem mit einer zusätzlichen blattfeder - Google Patents

Elektrisches verbindungssystem mit einer zusätzlichen blattfeder

Info

Publication number
EP3520177A1
EP3520177A1 EP16787343.9A EP16787343A EP3520177A1 EP 3520177 A1 EP3520177 A1 EP 3520177A1 EP 16787343 A EP16787343 A EP 16787343A EP 3520177 A1 EP3520177 A1 EP 3520177A1
Authority
EP
European Patent Office
Prior art keywords
electrical connection
connection system
conductive
additional
conductive strip
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
EP16787343.9A
Other languages
English (en)
French (fr)
Other versions
EP3520177B1 (de
Inventor
Romain Villard
Yannick VILLARDIER
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.)
TE Connectivity Services GmbH
Original Assignee
Tyco Electronics Service GmbH
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 Tyco Electronics Service GmbH filed Critical Tyco Electronics Service GmbH
Publication of EP3520177A1 publication Critical patent/EP3520177A1/de
Application granted granted Critical
Publication of EP3520177B1 publication Critical patent/EP3520177B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • H01R4/4846—Busbar details
    • H01R4/485—Single busbar common to multiple springs
    • 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
    • H01R9/2608—Fastening means for mounting on support rail or strip
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
    • H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail
    • 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
    • H01R9/2691—Clip-on terminal blocks for side-by-side rail- or strip-mounting with ground wire connection to the rail

Definitions

  • the present invention relates to an electrical connection system for an electrical apparatus such as a terminal block, the system comprising an additional leaf spring.
  • a terminal block comprising an electrical connection system for electrically connecting an electrical conductor and a support rail.
  • This type of terminal block also comprises other electrical conductors connection plugs with conductive strips included in the body of the block.
  • the number of sockets implies a particular geometry of the terminal block so as not to exceed the required size in an electrical box. In particular, the dimensioning of the electrical connection system can be difficult.
  • the system must include a number of parts to ensure good electrical contact between the electrical conductor and the support rail.
  • the present invention aims to solve all or some of the disadvantages mentioned above.
  • the present invention relates to an electrical connection system for an electrical apparatus such as a terminal block, the electrical connection system comprising:
  • a conductive strip having an electrical contact location arranged to cooperate with a conductive portion of an electrical conductor at a connecting position and a cooperation zone arranged to cooperate with a portion of a support rail at a cooperation position
  • a clamping device arranged to hold the conductive portion in the connecting position, such as a leaf spring comprising a support branch arranged to be mounted to the conductive strip and a clamping branch arranged to hold the conductive portion in the position of bond,
  • a holding device arranged to maintain the position of cooperation with the portion of the support rail
  • the holding device comprising an additional leaf spring provided with an additional branch of support arranged to be mounted to the conductive bar and an additional clamping leg arranged to cooperate with the portion of the support rail in the cooperation position.
  • the clamping device is a device equivalent to the leaf spring, this device being arranged to maintain the conductive portion in the connecting position with the conductive strip.
  • the additional leaf spring can be called a leaf spring holding the portion of the support rail. Indeed in this case, the qualifier "additional" no longer applies to this leaf spring.
  • the clamping device is a screw clamping device.
  • the leaf spring and the additional leaf spring are identical. This arrangement makes it possible to standardize this part, which reduces the number of references and facilitates the management of the parts during the manufacture of the electrical connection system.
  • the conductive strip has a longitudinal contact surface on which are formed the electrical contact location and the cooperation zone.
  • This arrangement makes it possible to produce a conductive strip having a simple geometry, such as a folded longitudinal strip. The manufacture of the conductive strip is thus facilitated.
  • the cooperation zone extends at least in part in the same plane as the extension plane of the electrical contact location.
  • the zone of cooperation extends at least in part in a plane transverse to the extension plane of the electrical contact location.
  • This arrangement also allows a simple implementation of the connecting bar in the terminal block and thus to save space with respect to a bar to which are added additional devices for connection with the support rail and the electrical conductor.
  • the portion of the support rail and the conductive portion of the electrical conductor can thus be arranged easily close to each other.
  • the electrical contact location extends rectilinearly in a profile generating at least one groove. This arrangement allows better holding in position of the conductive portion.
  • the cooperation zone comprises a first portion and a second portion, the first portion being able to cooperate with a first complementary portion of the portion of the support rail extending in a first plane and the second part being adapted to cooperate with a second complementary portion of the portion of the support rail extending in a second plane transverse to the first plane.
  • This cooperation in two transverse parts allows a good respective positioning of the support rail and the electrical connection system in the cooperation position.
  • the support branch extends in a plane transverse to the extension plane of the additional support branch.
  • This arrangement makes it possible to design a terminal block in which the direction of insertion of the electrical conductor can be adapted according to the geometric constraints.
  • the conductive strip has a passage opening for insertion of the conductive portion in the connecting position.
  • This arrangement allows the realization of the conductive strip in one piece having no point of weakness because the current can always be transmitted in sufficient quantities by the two side branches generated by the opening.
  • the conductive strip comprises a first portion and a second portion, the first portion being opposite the second portion.
  • the conductive strip has a generally U-shaped shape.
  • This arrangement makes it possible to produce the conductive strip from a straight strip which is then folded. This arrangement allows a saving of material because a base plate cut into straight blades causes little drop, that is to say loss of material.
  • the additional support branch extends in the extension of the second portion of the conductive strip, the cooperation zone being formed in the first part of the conductive strip.
  • This arrangement makes it possible to produce a holding clip in position of the portion of the support rail with the zone of cooperation and the additional clamping leg.
  • the conductive strip consists of a folded conductive blade.
  • the manufacture of the conductive strip is easy since it is made from a cut sheet which is then folded to give the conductive strip its final shape.
  • the conductive strip consists of a conductive blade.
  • This arrangement facilitates the manufacture of the conductive strip because it comes from a flat blade which is then transformed.
  • the mass production of this single conductive part thus makes it possible to save production time and reduce the cost of transformation compared to a system comprising several conductive parts.
  • a saving of material is achieved because a base plate can generate a large number of blades, falling material is reduced.
  • the conductive blade is included in a rectangular contour.
  • the blade is a rectangle, it is easy to find an arrangement of cuts to be made on the base plate to minimize falls and produce the most conductive bars.
  • the conductive strip comprises a recess adapted for the fitting of a fixing portion of the support branch by force and / or comprises an additional recess adapted for reinforcement by means of an additional fixing part of the additional support branch.
  • the depression is achieved by cutting the conductive blade. Depression is thus achieved during the cutting of the conductive blade, which limits the manufacturing time.
  • the cut generates a through opening in the conductive strip.
  • the present invention also relates to a terminal block comprising an insulating body in which is provided an electrical connection system as described above.
  • the insulating body comprises a support portion of the support branch and / or an additional support portion of the additional support branch.
  • This arrangement makes it possible to ensure the blocking of the support branch during the loading of the clamping branch and also for the additional support branch and the additional support portion.
  • Figure 1 is a front view of an electrical connection system, a support rail and an electrical conductor.
  • Figure 2 is a perspective view of the electrical connection system, the support rail and the electrical conductor.
  • Figure 3 is a front view of a terminal block comprising the electrical connection system.
  • Figure 4 is a detail view of Figure 3 centered on the electrical connection system.
  • Figure 5 is a perspective view of the terminal block including the electrical connection system.
  • Figure 6 is a detail view of Figure 5 centered on the electrical connection system.
  • Figure 7 is a front view of the electrical connection system and the support rail.
  • Figure 8 is a perspective view of the electrical connection system.
  • an electrical apparatus 1 such as a junction block 3 comprises an insulating body 5 and an electrical connection system 7, the electrical connection system 7 being formed in the insulating body 5.
  • the terminal block 3 includes sockets 9 for electrical conductors. Two jacks 9 are connected by a connecting rod 11 to establish an electrical contact between two corresponding conductors.
  • the terminal block 3 also has a socket 9 'for an electrical conductor 13 intended to be electrically connected to a support rail 15 on which is removably attached the terminal block 3.
  • the electrical conductor 13 has at one end a conductive portion 13 'for example a metal tip.
  • the metal tip is arranged to be inserted into an insertion channel 17 of the socket 9 'where it is held in position by the electrical connection system 7.
  • the socket 9 'further comprises an operating channel 19 in which a user can introduce a screwdriver type tool for removing the electrical conductor 13.
  • the electrical connection system 7 comprises a conductive strip 21 arranged to transmit a current between the conductive portion 13 'of the electrical conductor 13 and a portion 15' of the support rail 15.
  • the support rail 15 thus has a dual function since it allows the fixing of the terminal block 3 and is also used to be electrically connected to the electrical conductor 16.
  • the electrical connection system 7 also comprises a clamping device 22 of leaf spring type 23 arranged to hold the conductive portion 13 'at a position of connection with the conductive strip 21 as illustrated in FIGS. 1, 2, 7, 8.
  • any other type of clamping device 22 could be used provided that the clamping device 22 is arranged to hold the conductive portion 13 'in a position of connection with the conductive bar 21.
  • a clamping device 22 to screw could for example be used.
  • the leaf spring 23 comprises a bearing branch 23 'arranged to be mounted on the conductive bar 21.
  • the conductive strip 21 has a recess 25 or a through opening resulting from a cutout adapted for the interlocking force.
  • a fixing portion 27 of the support branch 23 ' is a fixed portion of the support branch 23 '.
  • the leaf spring 23 also comprises a clamping leg 23 "joined by a joint 23" 'to the support leg 23'.
  • the clamping leg 23 is arranged to hold the conductive portion 13 'in the connecting position.
  • the maneuvering channel 19 is arranged so as to allow the displacement of the clamping branch 23 "for the withdrawal of the electrical conductor 13.
  • the insulating body 5 has a support portion 29 of the support branch 23 'whose function is to block the support arm 23' during the movement of the clamping branch 23 ".
  • the conductive strip 21 has a folded end portion 31 generating a first portion 33 'of a cooperation zone 35 or advanced cooperation 33 and a second portion 37' of the cooperation zone 35 or stop cooperation 37.
  • This first portion 33 'of the conductive strip 21 is arranged to cooperate with a first complementary portion 39 of the support rail 15 extending in a first plane 39'.
  • This second portion 37 'of the conductor bar 21 is arranged to cooperate with a second complementary portion 41 of the support rail 15 extending along a second plane 4 transverse to the first plane 39'.
  • the conductive strip 21 also has a longitudinal contact surface 43 on which are formed an electrical contact location 45 with the conductive portion 13 'in the connection position, the cooperation advance 33 and the cooperation stop 37.
  • the electrical contact location 45 extends rectilinearly in a profile generating one or more grooves for better maintenance of the conductive portion 13 'in the connecting position.
  • the conductive strip 21 further has a passage opening 47 for the insertion of the conductive portion 13 'in the connecting position.
  • This passage opening 47 results for example from a cut made before folding of the conductive bar 21.
  • the electrical connection system 7 also comprises a holding device 49 arranged to hold the support rail 15 in a position of cooperation with the conductive bar 21.
  • the cooperation is by contact, which allows a current transmission between the conductive strip 21 and the support rail 15.
  • the conductive strip 21 comprises a first part 51 and a second part 53 at least partially opposite the first part 51.
  • the first part 51 comprises the longitudinal contact surface 43 and the second part 53 cooperates with the holding device 49. Having these two parts 51, 53 makes it possible to produce a compact electrical connection system 7 and / or to adapt to geometrical constraints imposed on the terminal block 3.
  • the conductive strip 21 can thus be obtained by cutting in a base plate and then by folding.
  • the conductive strip may have a generally U-shaped shape.
  • the first part 51 and the second part 53 are each formed in a different branch of the U.
  • the general U shape of the conductive strip 21 is obtained from a conductive strip cut from a base plate.
  • the blade is included in a rectangular contour which allows a saving of material by limiting the falls during cutting. When cutting through openings are also created.
  • a conductive strip 21 before folding comprising a plurality of transverse portions connected to each other to generate a lateral connection 55 after folding.
  • This arrangement makes it possible to maintain a large section for good power transmission once the conductive strip 21 is folded.
  • the conductive strip 21 when folded also has good strength and is not likely to be deformed during assembly in the terminal block 3.
  • the holding device comprises an additional leaf spring 57.
  • This additional leaf spring 57 may be similar to the leaf spring maintaining the conductive portion 13 'in the connecting position.
  • This arrangement allows a standardization of this part and the use of a reference less for the management of parts by the manufacturer, the holding device 49 being identical to the leaf spring 23.
  • the additional leaf spring 57 comprises an additional support leg 57 'provided with an additional attachment portion 60 arranged to be attached to an additional depression 59 of the conductive bar 21 in a manner similar to the leaf spring 23 of the conductive portion. 13 '.
  • the support leg 57 extends in the extension of the second portion 53 of the conductive bar 21. This arrangement also reduces the size and therefore the material required for the manufacture of the conductive bar 21.
  • the additional leaf spring 57 also comprises an additional clamping leg 57 "arranged to cooperate with the portion 15 'of the support rail 15 in the cooperation position.
  • the additional leaf spring 57 comprises a hinge 57 "'Thus the additional clamping leg 57" holds the portion 15' of the support rail 15 in the cooperation position.
  • the electrical connection system 7 obtained therefore has few parts, is compact and is able to meet geometric constraints of space for its integration in the terminal block.

Landscapes

  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Installation Of Bus-Bars (AREA)
EP16787343.9A 2016-09-29 2016-09-29 Elektrisches verbindungssystem mit einer zusätzlichen blattfeder Active EP3520177B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2016/073300 WO2018059696A1 (fr) 2016-09-29 2016-09-29 Système de liaison électrique avec un ressort à lames additionnel

Publications (2)

Publication Number Publication Date
EP3520177A1 true EP3520177A1 (de) 2019-08-07
EP3520177B1 EP3520177B1 (de) 2020-11-11

Family

ID=57206205

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16787343.9A Active EP3520177B1 (de) 2016-09-29 2016-09-29 Elektrisches verbindungssystem mit einer zusätzlichen blattfeder

Country Status (4)

Country Link
US (1) US10985475B2 (de)
EP (1) EP3520177B1 (de)
CN (1) CN109845038B (de)
WO (1) WO2018059696A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018059695A1 (fr) 2016-09-29 2018-04-05 Abb Schweiz Ag Système de liaison électrique avec deux branches de connexion
WO2018059694A1 (fr) 2016-09-29 2018-04-05 Abb Schweiz Ag Système de liaison électrique avec une lame conductrice
DE102019120302B4 (de) * 2019-07-26 2022-11-24 Wago Verwaltungsgesellschaft Mbh Leiteranschlussklemme, Klemmfeder einer Leiteranschlussklemme und Anordnung aus wenigstens zwei Klemmfedern

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PL3054533T3 (pl) 2015-02-05 2020-06-29 Morsettitalia S.P.A. Podstawowa listwa zaciskowa i pomocnicza listwa zaciskowa do tablic rozdzielczych oraz dwupoziomowy zespół listwy zaciskowej zawierający podstawową listwę zaciskową i pomocniczą listwę zaciskową
WO2018059694A1 (fr) 2016-09-29 2018-04-05 Abb Schweiz Ag Système de liaison électrique avec une lame conductrice
WO2018059695A1 (fr) 2016-09-29 2018-04-05 Abb Schweiz Ag Système de liaison électrique avec deux branches de connexion

Also Published As

Publication number Publication date
CN109845038A (zh) 2019-06-04
EP3520177B1 (de) 2020-11-11
US20190229440A1 (en) 2019-07-25
CN109845038B (zh) 2021-04-13
WO2018059696A1 (fr) 2018-04-05
US10985475B2 (en) 2021-04-20

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