EP3723210A1 - Zugentlastungsteil für die mechanische verbindung zwischen einem stecker und einem kabel, anordnung und leuchte mit solch einem teil - Google Patents

Zugentlastungsteil für die mechanische verbindung zwischen einem stecker und einem kabel, anordnung und leuchte mit solch einem teil Download PDF

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Publication number
EP3723210A1
EP3723210A1 EP19382283.0A EP19382283A EP3723210A1 EP 3723210 A1 EP3723210 A1 EP 3723210A1 EP 19382283 A EP19382283 A EP 19382283A EP 3723210 A1 EP3723210 A1 EP 3723210A1
Authority
EP
European Patent Office
Prior art keywords
connector
cable
strain relief
cover
covers
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.)
Withdrawn
Application number
EP19382283.0A
Other languages
English (en)
French (fr)
Inventor
Marina Trias Lafuente
Antonio BALBANEDA CARRILLERO
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.)
Simon SA
Original Assignee
Simon SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Simon SA filed Critical Simon SA
Priority to EP19382283.0A priority Critical patent/EP3723210A1/de
Publication of EP3723210A1 publication Critical patent/EP3723210A1/de
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/502—Bases; Cases composed of different pieces
    • H01R13/506—Bases; Cases composed of different pieces assembled by snap action of the parts
    • 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
    • H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
    • H01R13/5804—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable comprising a separate cable clamping part
    • H01R13/5812—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable comprising a separate cable clamping part the cable clamping being achieved by mounting the separate part on the housing of the coupling device
    • 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
    • H01R13/46—Bases; Cases
    • H01R13/50—Bases; Cases formed as an integral body
    • H01R13/501—Bases; Cases formed as an integral body comprising an integral hinge or a frangible part

Definitions

  • This invention is related to the field of strain relief parts, destined to mechanically connect a cable and a connector, such that the longitudinal forces arising between the connector and the cable are diverted to the strain relief connector instead of being transmitted to the electrical connection.
  • strain relief parts for the mechanical union between a connector and a cable partially inserted into the connector.
  • Some known parts are provided with a first cover and a second cover, a hinge and locking means between the first and second covers, such that the part can be closed to house inside one end of the connector and one end portion of the cable.
  • the technical problem posed by the fact that the electrical connection can itself be subjected to high mechanical forces is already known, and is solved by the strain relief part just disclosed. This can happen, for example, when, after making an electrical connection between a lamp and a driver, the lamp that was just connected is hanging from the cable, when it is a ceiling lamp.
  • strain reliefs are designed to connect cables with a greater section than those used to connect devices that operate in direct current, such as LED lamps.
  • strain reliefs are large and bulky and are intended for joining high-section cables. Typical dimensions are of the order of 5 cm long, 2 cm wide and 1 cm height.
  • the present invention proposes a strain relief part for the mechanical union between a connector provided with a retaining projection and a cable partially inserted into the connector, the part being provided with a first cover and a second cover, and locking means between the first and second covers, such that the part can be closed to house inside one end of the connector and one end portion of the cable, the first and second covers each comprising a first end such that these first ends define therebetween an opening for the end of the connector and each comprising a second end such that these second ends define therebetween an opening for the end portion of the cable, wherein at least the first cover or the second cover comprises a retaining surface complementary to the retaining projection of the connector and both the first cover and the second cover comprise respective pressure elements, the surface being arranged on the side of the first ends and the pressure elements arranged on the side of the second ends, so that when the first cover and the second cover are closed on the end of the connector and are blocked by the locking means, the retaining projection of the connector faces
  • strain relief It is a part that can be easily installed thanks to its structure and thanks to the pressure surfaces and to take advantage of a retention protrusion of the connector they allow resisting tensile forces of at least 5 kg.
  • the dimensions of the strain relief are the following: its length in the direction is comprised between 1,4 and 2 cm, its width in the transversal direction is comprised between 0,6 cm and 1,5 and its height is comprised between 0,5 and 1,2.
  • the part is made of a single piece, wherein the first cover and the second cover can be closed on the end of the connector by rotation around the hinge, such that the strain relief can be made in a single piece.
  • the hinge and the locking means are on opposite sides of the first and second cover.
  • the cable is provided with one conductor or two conductors and at least one sheath, either for each conductor or for both, such that the pressure elements press the sheath or the sheaths.
  • the strain relief part according to any of the embodiments disclosed above, includes a retaining surface on both covers.
  • the retaining surface or the retaining surfaces are formed in an opening of the covers or as a protrusion of the covers. In other embodiments the retaining surface is a through hole in one of the covers.
  • the locking means are constituted by one or more hooks arranged in one of the covers and complementary openings in the other cover.
  • this feature of the invention is moldable in a single piece.
  • the openings are constituted by a lateral projection provided with through openings.
  • the lateral projection is discontinuous. So that facilitates the blocking and avoids unnecessary stresses in the locking tabs.
  • the pressure elements are arranged facing each other or are arranged offset with respect to the longitudinal direction of the cable.
  • the variant in which the pressure elements are in offset is especially effective for use cables of small section, because these can take bends of reduced radius without breaking, and its interaction with the elements of pressure allows to obtain direct capacity of resistance of forces of longitudinal traction according to the direction of the cable.
  • the cable when pressed by the elements in offset, the cable makes two curves, so that a force by longitudinal support is added to the friction force obtained by the pressure elements.
  • the pressure elements are tabs contained in a plane perpendicular to the longitudinal direction of the cables, and wherein at least one of the tabs is tilted towards the first end.
  • At least one of the pressure elements acts as an anti-return element.
  • the more tensile force applied the stronger the force applied by the pressure element, as it will rotate slightly backward, reducing the passage section and therefore increasing its pressure on the cable.
  • the pressure elements have a rough or flat profile on their contact surface with the cable and are rounded at the ends, so that they do not have sharp edges.
  • the objective of this feature is to avoid cutting the sheath or cable sheaths in the event that very high forces are applied.
  • the part is a single piece made of plastic material.
  • the part is a moulded part or a 3D printed part and preferably wherein the covers are printed forming a relative opening of 90 °.
  • 3D printers are increasingly efficient and now they can print fully functional pieces.
  • the part of the invention can be molded, but in case of small series, for example specially adapted for a specific connector, manufacturing them with a 3D printer is also cost effective.
  • one of the covers comprises on its surface oriented towards the cable, cable positioning arms.
  • the invention also relates to an assembly comprising a connector a cable and a strain relief part according to any of the preceding claims.
  • the invention also relates to a luminaire comprising one or more LED light sources and a driver provided with a primary side and a secondary side, the LED or LEDs being connected to the driver's secondary side, wherein the connection between the LED or LEDs and the driver secondary side comprise a connector, a first cable between the driver and the connector, a second cable between the connector and the LED, both cables being mechanically joined to the connector by a part according to any of the inventive variants disclosed above.
  • the present invention relates to a strain relief part P conceived for the mechanical union between a connector 1 provided with a retaining projection 11 and a cable 2 partially inserted into the connector 1.
  • the cable shown is provided with a conductor 21 surrounded by a sleeve or sheath 22. Therefore, the inventive part P is destined to transmit forces between the cable 2 and the connector 1.
  • the invention can be also applied in the case of two conductors, each surrounded by a sheath, and a further common sheath surrounding both sheaths, or two conductors surrounded by two sheaths.
  • the part P is provided with a first cover P1 and a second cover P2, a hinge P3 and locking means P11, P21 between the first P1 and second P2 covers, such that the part P can be closed to house inside one end of the connector 1 and one end portion of the cable 2, as shown in the mounting sequences shown in figures 6 to 11 .
  • the connector 1 has two ends, as shown in figure 6 , a widened end, for example destined to be connected to a complementary connector, and a narrower end, destined to house an end portion of the cable 2.
  • the narrower end is that provided with the retaining projection 11.
  • each cover P1 and P2 comprise a second end P1D, P2D defining therebetween an opening for the end portion of the cable 2.
  • the second cover P2 comprises a retaining surface S, S2 complementary to the retaining projection 11 of the connector 1 and arranged on the side of the first ends P1U, P2U, which will cooperate to transmit longitudinal forces which arise when pulling the cable 2.
  • the first cover P1 and the second cover P2 comprise respective pressure elements TP1, TP2, arranged on the side of the second ends P1D, P2D, on the side of the cable inlet.
  • the locking means P11, P21 are constituted by two hooks arranged in the first cover P1 and complementary openings in the other cover P2. These openings are in turn constituted by a lateral projection P21 provided with through openings. As shown, the lateral projection P21 is discontinuous, which allows for an easier closing operation.
  • the invention is specially fit to be applied to a Luminaire L comprising one or more LED light sources LED and a driver D provided with a primary side D1 and a secondary side D2.
  • the LEDs are connected to the driver's secondary side D2, and the connection between the LEDs and the driver secondary side comprise a connector 1, a first cable 2 between the driver and the connector 1, a second cable 2 between the connector 1 and the LED, both cables 2 and the connector 1 being mechanically joined by a part P according to the embodiments disclosed above.
  • the objective of the invention was to develop a strain relief part of reduced dimensions, in particular designed to join cables of reduced diameter, since the known strain relief parts are designed for larger diameter cables.
  • the characteristics that define the connector according to the present invention are especially compatible with a small size part, as for example with the following dimensions:
  • a connector with the features of the invention and having dimensions near 1,55 cm x 0,7 cm x 0,7 cm allow resisting tensile forces of at least 5kg.
  • the width (0,7 cm) only encompasses the body, excluding the hinge and the locking means.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
EP19382283.0A 2019-04-12 2019-04-12 Zugentlastungsteil für die mechanische verbindung zwischen einem stecker und einem kabel, anordnung und leuchte mit solch einem teil Withdrawn EP3723210A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19382283.0A EP3723210A1 (de) 2019-04-12 2019-04-12 Zugentlastungsteil für die mechanische verbindung zwischen einem stecker und einem kabel, anordnung und leuchte mit solch einem teil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19382283.0A EP3723210A1 (de) 2019-04-12 2019-04-12 Zugentlastungsteil für die mechanische verbindung zwischen einem stecker und einem kabel, anordnung und leuchte mit solch einem teil

Publications (1)

Publication Number Publication Date
EP3723210A1 true EP3723210A1 (de) 2020-10-14

Family

ID=66286286

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19382283.0A Withdrawn EP3723210A1 (de) 2019-04-12 2019-04-12 Zugentlastungsteil für die mechanische verbindung zwischen einem stecker und einem kabel, anordnung und leuchte mit solch einem teil

Country Status (1)

Country Link
EP (1) EP3723210A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4387005A1 (de) * 2022-12-15 2024-06-19 Aptiv Technologies Limited Anschlusssystem mit kabelhalterung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2105996A1 (de) * 2008-03-25 2009-09-30 Esbe Ab Gehäuse für Stecker und Kabel
WO2015099183A1 (ja) * 2013-12-26 2015-07-02 矢崎総業株式会社 リアホルダ
EP3382821A1 (de) * 2017-03-31 2018-10-03 Yamaichi Electronics Deutschland GmbH Schutzvorrichtung für steckverbinder, verwendung und verfahren
EP3429033A1 (de) * 2017-07-12 2019-01-16 Aptiv Technologies Limited Steckverbinder-rückwandanordnung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2105996A1 (de) * 2008-03-25 2009-09-30 Esbe Ab Gehäuse für Stecker und Kabel
WO2015099183A1 (ja) * 2013-12-26 2015-07-02 矢崎総業株式会社 リアホルダ
EP3382821A1 (de) * 2017-03-31 2018-10-03 Yamaichi Electronics Deutschland GmbH Schutzvorrichtung für steckverbinder, verwendung und verfahren
EP3429033A1 (de) * 2017-07-12 2019-01-16 Aptiv Technologies Limited Steckverbinder-rückwandanordnung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4387005A1 (de) * 2022-12-15 2024-06-19 Aptiv Technologies Limited Anschlusssystem mit kabelhalterung

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