EP3235065A1 - Connecteur pour connecter l'extrémité d'un fil à une borne - Google Patents

Connecteur pour connecter l'extrémité d'un fil à une borne

Info

Publication number
EP3235065A1
EP3235065A1 EP15825844.2A EP15825844A EP3235065A1 EP 3235065 A1 EP3235065 A1 EP 3235065A1 EP 15825844 A EP15825844 A EP 15825844A EP 3235065 A1 EP3235065 A1 EP 3235065A1
Authority
EP
European Patent Office
Prior art keywords
connector
wire
connector housing
gasket
releasable cover
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Withdrawn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
EP15825844.2A
Other languages
German (de)
English (en)
Inventor
Augustin Bellet
Benoit WALME
Florian LE MAOUT
Rafal PISAREK
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Japan Co Ltd
Original Assignee
Valeo Japan Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valeo Japan Co Ltd filed Critical Valeo Japan Co Ltd
Publication of EP3235065A1 publication Critical patent/EP3235065A1/fr
Withdrawn legal-status Critical Current

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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5213—Covers
    • 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
    • H01R13/533—Bases, cases made for use in extreme conditions, e.g. high temperature, radiation, vibration, corrosive environment, pressure
    • 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
    • H01R13/582—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 the cable being clamped between assembled parts of the housing
    • 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
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5202—Sealing means between parts of housing or between housing part and a wall, e.g. sealing rings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/26—Connectors or connections adapted for particular applications for vehicles

Definitions

  • the present invention relates to a connector adapted for electrically connecting an assembly comprising an electrical motor and a compressor of a cooling system for a vehicle, such as a car, to an electrical power source. More specifically, the present invention relates to a connector for electrically connecting the end of a wire to a terminal, wherein the connector comprises a housing adapted to receive the end of at least one wire and means for fixing the end of the wire inside the housing.
  • the connector according to the present invention is adapted for use in the refrigerant circuit in a motor vehicle.
  • the connector is particularly adapted to connect an electrically driven compressor to a power source.
  • this compressor is of a mechanical type and its rotation is driven by a belt or pulley which is connected to the internal combustion engine of the vehicle.
  • the number of hybrid vehicles that is to say vehicles with either an internal combustion engine coupled to an electric motor or fully electric vehicles is constantly increasing because of the scarcity of fossil fuels that are used for the internal combustion engines.
  • the presence of high electric potential in an electric compressor requires the use of a dielectric lubricant with electrical insulation properties which are superior to those of a conventional lubricant used in a mechanical compressor.
  • Dielectric lubricants are more expensive than conventional lubricants used for a mechanical compressor.
  • manufacturers need to manage the presence and use of both types of lubricants during assembly of the vehicles.
  • the invention proposes a connector which provides both electrical contact and sealing to connect an electrical motor for a mechanical compressor to a power source. The aim is to allow the use of said electrical motor in an environment comprising a conventional, non-dielectric lubricant.
  • the present invention is directed to a connector for electrically connecting the end of at least one wire to a terminal comprising at least one terminal pin, the connector comprising:
  • the connector housing comprises a passage for allowing the at least one terminal pin to enter the interior of the connector housing and to electrically contact the end of the at least one wire
  • the connector further comprising:
  • a releasable cover adapted to close off the connector housing to envelop the end of the at least one wire inside the assembly of the connector housing and the releasable cover, the connector housing and the releasable cover defining at least one groove for receiving and fixing the at least one wire, the at least one groove being partially open to allow entry of the at least one wire into the groove via said opening of the groove.
  • the opening of the at least one groove is provided with chamfers to facilitate the entry of the at least one wire in the at least one groove.
  • the at least one groove is provided in the releasable cover and wherein upon assembly of the connector housing and the releasable cover, the connector housing is adapted to at least partially close off the opening of the at least one groove.
  • the releasable cover is provided with means for receiving a contact clamped to the end of the at least one wire inside the connector housing.
  • the releasable cover comprises a gasket with at least one aperture, the gasket being adapted to be positioned in the releasable cover to have the at least one aperture of the gasket in line with the passage in the connector housing, wherein the gasket is adapted to form a seal around at least one sleeve around a terminal pin once the terminal pin is received inside the connector housing.
  • the gasket comprises a flexible material, such as rubber.
  • the releasable cover of the connector is provided with positioning means for the gasket, said positioning means comprising protrusions, the gasket being provided with corresponding positioning holes for receiving said protrusions.
  • the releasable cover comprises a recess adapted to receive the gasket, wherein the gasket has a corresponding form to fill at least partially said recess.
  • the recess of the releasable cover and the gasket are asymmetrically shaped.
  • the connector housing is adapted to close off the recess in the releasable cover to thereby allow the fixing of the gasket in the recess between the connector housing and the releasable cover.
  • Figure 1 is a schematic illustration of an assembly of an electrical motor and a compressor, wherein the assembly comprises a connector according to the invention
  • Figure 2 shows a connector according to the invention according to an exemplary embodiment
  • Figure 3 shows a cross-section of the connection between the connector and a terminal
  • Figure 4 shows a gasket used as a sealing in the connector in top view
  • Figure 5 shows the gasket according to Figure 4 in cross-section
  • Figure 6 shows the fixing of phase wires inside wire grooves of the connector
  • Figure 7 shows a detail of the housing, the releasable cover and the wire grooves
  • Figure 8 shows the sequence of the assembly of the housing, the releasable cover and the connector.
  • FIG. 1 schematically shows an assembly 10.
  • the assembly 10 can be used in a thermodynamic circuit, for example a cooling or heating circuit used in a vehicle, such as a car.
  • the assembly 10 comprises an electrical motor 1 connected to a mechanical compressor 2.
  • the assembly 10 further comprises a control module 3 for operating the motor 1 and the mechanical compressor 2.
  • the assembly comprises a terminal 4 to tightly and electrically connect the motor to control module 3.
  • terminal 4 comprises three terminal pins, as an example, for making electrical contact.
  • a wall member 5 defines a specific sealed envelope around the motor 1.
  • the terminal 4 protrudes in the wall member 5 as shown in more detail in Figure 3.
  • terminal refers to the plug which protrudes from the compressor and on which a connector can be fixed.
  • terminal pin is used to refer to the metal part of the terminal which is adapted to make electrical contact.
  • FIG. 2 shows a connector 20 according to the invention, comprising a connector housing 30.
  • Pluralities of contacts are located inside the connector housing 30. Each contact may be clamped onto the end of a wire (not shown) such as a motor phase wire.
  • the connector 20 is adapted to be connected to the terminal 4. Once the connector 20 is fixed on the terminal 4, each terminal pin of the terminal 4 is in electrical contact with the contacts inside the connector 20.
  • the connector 20 also comprises a releasable cover 21 to maintain the contacts inside the connector housing 30 and to receive contacts in their respective positions.
  • the connector housing 30 and the releasable cover 21 are adapted to allow fixing of the releasable cover 21 on the connector housing 30 by means of, for example, a snap fit.
  • the releasable cover 21 also comprises a plurality of grooves 22, such as three grooves, to allow a corresponding number of phase wires to enter the connector 20.
  • the grooves 22 comprise an opening such as an open end to allow easy assembly of the phase wires inside the grooves 22.
  • the releasable cover 21 and the connector housing 30 are formed to close at least partially the open end of the grooves 22 to keep the phase wires 40 inside the grooves 22.
  • the assembly of the connector housing 30 and the releasable cover 21 provides an improved insulation distance around the wires received in the grooves 22. This will be discussed in more detail with reference to Figure 7.
  • each terminal pin 70 comprises an insulator 51 which generally comprises glass.
  • the insulator 51 prevents leakage and electrical contact between each terminal pin 70 and a terminal plate 53.
  • the protruding end of each terminal pin 70 further comprises a sleeve 52 which determines the exact distance between the wall member 5 and the connector 20.
  • the sleeve 52 generally comprises a ceramic material.
  • the connector 20 is adapted to be fixed on the protruding end of the terminal pins 70 to allow electrical contact between the terminal 4 and the plurality of wires 40.
  • the extremity of each wire 40 is provided with a contact 41.
  • the contact 41 is normally clamped onto the end of a wire 40 and is adapted to contact the terminal pin 70 to allow electrical contact.
  • a recess 24 is available for receiving a gasket 60 or insert.
  • the shape of the recess 24 corresponds to the form of the gasket 60 to allow the positioning of the gasket 60 inside the recess 24.
  • the gasket 60 operates as a seal to provide proper sealing around the sleeve 52 to avoid any current leakage between contact 41 and terminal plate 53.
  • the gasket 60 comprises any suitable material, such as rubber. HNBR or EPDM are commonly used for this purpose in refrigerating applications.
  • the gasket 60 is adapted to seal the contact with a terminal 4 comprising three terminal pins 70.
  • Figure 4 shows a top view of the gasket 60.
  • the gasket 60 comprises an asymmetric form with a main body 61 and a protruding lip 62.
  • the asymmetric form and the presence of the protruding lip 62 thus provide a foolproof means or poka yoke shape to allow assembly of the gasket 60 in only one correct position inside the recess 24. This means, for instance, that the gasket 60 cannot be assembled upside down.
  • Protruding lip 62 can confirm the presence of the gasket 60 inside the connector 20 as it is visible from the outside. This allows for visible inspection after the assembly to ensure that the gasket 60 is inside and properly positioned.
  • the gasket 60 comprises three apertures 63, 64, 65 wherein each aperture 63, 64, 65 allows the passage of a terminal pin 70 and a corresponding ceramic sleeve 52.
  • the size and the position of the respective holes 63, 64, 65 are adapted to coincide with the position of the corresponding terminal pins 70 and sleeves 52.
  • the gasket 60 further comprises positioning holes 66, 67, 68.
  • the positioning holes 66, 67, 68 are through holes which are adapted to be positioned on matching protrusions (not shown) present on the bottom of the recess 24 in the releasable cover 21.
  • the three matching through holes 66, 67, 68 and protrusions (not shown) allow proper positioning of the gasket 60 inside the connector 20.
  • FIG 5 a cross-section of the gasket 60 is shown along the line A-A of Figure 4.
  • the cross-section of Figure 5 shows the main aperture 64, the positioning hole 66 and the specific form of the wall part of the main hole 64.
  • Figure 5 shows that the asymmetric gasket 60 is positioned with lips 65 facing the connector housing 30 to ensure sealing.
  • the connector 20 is shown with three phase wires 40, 40', 40" in three different positions.
  • Figure 6 shows the positions during the assembly process of the phase wires 40, 40', 40" in the respective grooves 22.
  • assembly of the phase wires 40, 40', 40" is relatively easy in that a phase wire 40, 40', 40" can be pressed in one of the respective grooves 22.
  • the opening of the various grooves 22 is slightly smaller than the outer diameter of the phase wires 40, 40', 40".
  • each phase wire 40, 40', 40" is pushed inside a groove 22 using a determined amount of force.
  • the phase wire cannot slip out easily.
  • the grooves 22 are each provided with a chamfer of approximately 30° to allow an opening of the grooves 22 of approximately 60° to allow phase wires 40, 40', 40" to enter grooves 22.
  • the opening of the grooves 22 and the specific dimensions of said grooves 22 require the wires 40, 40' and 40" to be pressed inside the grooves 22.
  • the presence of a 60° chamfer provides an important aid during the assembly of the connector 20. Indeed, as the different wires 40, 40', 40" each comprise at their end a contact 41, the fixing of the contacts 41 on the wires 40, 40', 40" can be completed before the wires 40, 40', 40" are fixed inside the grooves 22.
  • FIG. 7 shows the length L which corresponds to the length of the grooves 22.
  • LI covers at least a third of the indicated length L of the grooves 22.
  • L has a value of around 12.4 millimetres (mm).
  • LI has a value of around 5 millimetres (mm).
  • Figure 8 shows the sequence of three assembly steps 80, 82, 84 of the connector housing 30 and the releasable cover 21.
  • assembly steps 80 and 82 for the purpose of clarity a part of the connector housing 30 is removed to show certain elements described below. For the purpose of clarity, the other elements of the connector are not shown in Figure 8.
  • assembly step 80 the connector housing 30 and the releasable cover 21 are placed in a position to allow assembly.
  • the interior of the releasable cover 21 comprises an angled surface 26 adapted to contact the forward end 35 of the housing 30.
  • the forward end 35 is guided by the angled surface 26 towards an end position by forwarding the connector housing 30.
  • the housing 30 and the releasable cover 21 are fully assembled.
  • the trailing end 37 is provided with a small ridge which is fixed by means of a notch 27 of the releasable cover 21 to allow said trailing end to be fixed by means of a snap lock.
  • the role of the connector 20 is to electrically connect the motor 1 to a control module 3.
  • the connection of said connector 20 on the set of terminals 4 is critical because the terminal 4 pass through the wall member 5 of the connector housing 21 around the motor 1.
  • the connector 20 of the present invention provides a proper sealing once the connector 20 is put in place to guarantee a secured connection.

Landscapes

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

Abstract

L'invention porte sur un connecteur (20) destiné à connecter électriquement l'extrémité d'au moins un fil (40) à une borne (4) comprenant au moins une broche de borne (70), le connecteur (20) comprenant : - un boîtier de connecteur (21, 30) conçu pour recevoir l'extrémité de l'au moins un fil (40), - des moyens pour fixer l'extrémité de l'au moins un fil (40) à l'intérieur du boîtier de connecteur (21, 30), le boîtier de connecteur (21, 30) comprenant un passage pour permettre à l'au moins une broche de borne (70) de pénétrer à l'intérieur du boîtier de connecteur (21, 30) et d'entrer électriquement en contact (41) avec l'extrémité de l'au moins un fil (40), le connecteur (20) comprenant en outre : - un couvercle amovible (21) conçu pour fermer le boîtier de connecteur (21, 30) afin d'envelopper l'extrémité de l'au moins un fil (40) à l'intérieur de l'ensemble (10) composé du boîtier de connecteur (21, 30) et du couvercle amovible (21), le boîtier de connecteur (21, 30) et le couvercle amovible (21) délimitant au moins une rainure (22) destinée à recevoir et fixer l'au moins un fil (40), l'au moins une rainure (22) étant partiellement ouverte pour permettre l'entrée de l'au moins un fil (40) dans la rainure (22) par l'intermédiaire de ladite ouverture de la rainure (22).
EP15825844.2A 2014-12-19 2015-12-17 Connecteur pour connecter l'extrémité d'un fil à une borne Withdrawn EP3235065A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1462879A FR3030917B1 (fr) 2014-12-19 2014-12-19 Connecteur pour connecter l'extremite d'un cable a une borne
PCT/IB2015/059707 WO2016098033A1 (fr) 2014-12-19 2015-12-17 Connecteur pour connecter l'extrémité d'un fil à une borne

Publications (1)

Publication Number Publication Date
EP3235065A1 true EP3235065A1 (fr) 2017-10-25

Family

ID=52824361

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15825844.2A Withdrawn EP3235065A1 (fr) 2014-12-19 2015-12-17 Connecteur pour connecter l'extrémité d'un fil à une borne

Country Status (5)

Country Link
EP (1) EP3235065A1 (fr)
JP (1) JP2017539067A (fr)
CN (1) CN107646159A (fr)
FR (1) FR3030917B1 (fr)
WO (1) WO2016098033A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3058582B1 (fr) * 2016-11-10 2021-08-06 Valeo Japan Co Ltd Connecteur de raccordement electrique pour un compresseur d'une installation de conditionnement d'air d'un vehicule automobile
CN109586077B (zh) * 2017-09-29 2021-02-26 泰科电子(上海)有限公司 电连接器和连接器组件
CN107863625B (zh) * 2017-10-25 2024-02-06 浙江珠城科技股份有限公司 一种用于压缩机玻璃柱的连接器
CN110391532B (zh) * 2018-04-19 2021-04-23 泰科电子(上海)有限公司 连接器
EP3677776A1 (fr) * 2019-01-03 2020-07-08 Valeo Japan Co., Ltd Connecteur électrique pour un compresseur électrique d'une installation de conditionnement d'air
CN111463622B (zh) * 2019-01-22 2024-05-07 安普泰科电子韩国有限公司 集束端子连接器和包括该集束端子连接器的封闭式压缩机
US11444406B2 (en) * 2020-09-14 2022-09-13 Steering Solutions Ip Holding Corporation Weldable poka-yoke connector

Family Cites Families (7)

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Publication number Priority date Publication date Assignee Title
GB847956A (en) * 1956-10-08 1960-09-14 Amp Inc Improvements in electrical connectors and plug blocks incorporating them
US5173057A (en) * 1992-02-07 1992-12-22 Tecumseh Products Company Permanent protective cover
US20020049004A1 (en) * 2000-06-09 2002-04-25 Davis Wayne Samuel Cluster block connector
US6910904B2 (en) * 2001-05-04 2005-06-28 Tecumseh Products Company Compressor with terminal assembly having dielectric material
DE102006028202A1 (de) * 2006-06-20 2007-12-27 Tyco Electronics Amp Gmbh Elektrischer Steckverbinder
DE102006047235A1 (de) * 2006-10-04 2008-04-10 Bimed Teknik A.S., Büyükcekmece Beleuchtungseinrichtung für einen Kühlschrank
FR2997797A1 (fr) * 2012-11-08 2014-05-09 Valeo Japan Co Ltd Ensemble comprenant un dispositif de raccordement electrique pour compresseur et un moyen d'etancheite et compresseur comprenant un tel ensemble

Non-Patent Citations (2)

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Title
None *
See also references of WO2016098033A1 *

Also Published As

Publication number Publication date
FR3030917A1 (fr) 2016-06-24
CN107646159A (zh) 2018-01-30
FR3030917B1 (fr) 2018-08-31
JP2017539067A (ja) 2017-12-28
WO2016098033A1 (fr) 2016-06-23

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