EP2477278A1 - Anschlussmuffe für elektrischen Anschluss, und Zusammenbauverfahren - Google Patents

Anschlussmuffe für elektrischen Anschluss, und Zusammenbauverfahren Download PDF

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Publication number
EP2477278A1
EP2477278A1 EP12150769A EP12150769A EP2477278A1 EP 2477278 A1 EP2477278 A1 EP 2477278A1 EP 12150769 A EP12150769 A EP 12150769A EP 12150769 A EP12150769 A EP 12150769A EP 2477278 A1 EP2477278 A1 EP 2477278A1
Authority
EP
European Patent Office
Prior art keywords
sleeve
connector
sleeves
axis
barrel
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
EP12150769A
Other languages
English (en)
French (fr)
Other versions
EP2477278B1 (de
Inventor
Laurent Mounier
Serge Perrot
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.)
Radiall SA
Original Assignee
Radiall 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 Radiall SA filed Critical Radiall SA
Publication of EP2477278A1 publication Critical patent/EP2477278A1/de
Application granted granted Critical
Publication of EP2477278B1 publication Critical patent/EP2477278B1/de
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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/193—Means for increasing contact pressure at the end of engagement of coupling part, e.g. zero insertion force or no friction
    • 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

Definitions

  • the present invention relates to an electrically conductive sleeve for electrical connector, as well as such an electrical connector.
  • the invention aims to provide a connector for conveying an electrical signal having a high power and / or high intensity and whose connection to a complementary type of connector requires only a weak connection force.
  • a connector is advantageously capable of undergoing a large number of connection / disconnection cycles.
  • connection or disconnection forces may be less than 10 Newtons and this connector may advantageously retain its electrical characteristics after 10,000 connection / disconnection cycles.
  • the electrical signal is, for example, of the order of a few tens of kW with an intensity of 125 A.
  • a connector can be used for recharging electric vehicles or for applications in the medical field.
  • vehicle must, in the sense of the invention, be understood in a very broad manner as will be seen later.
  • a problem with the transmission of large power through mated electrical connectors is the high contact resistance between these two mated connectors. Indeed, the higher this contact resistance is and the greater the power dissipated by the Joule effect, which can affect the efficiency and safety of the connection thus implemented between the two connectors. It is therefore desirable to reduce this contact resistance.
  • a solution for example known from the application WO 2009/099789 , is to multiply the points of electrical contact between the two connectors when they are coupled.
  • Requirement WO 2009/099789 teaches to use a connector having a barrel inside which are arranged electrically conductive sleeves, each of these sleeves having at one end a slotted portion defining a plurality of tabs. Each of these tabs forms points of contact with the complementary type connector to be received inside the sleeves.
  • the invention aims to meet this need. It achieves, in one of its aspects, through an electrically conductive sleeve for electrical connector, the sleeve extending around an axis, having in particular a tubular shape, and having a first end and a second end, the second end being opposite to the first end and being in particular configured to bear against a body of the electrical connector, at least one slot being formed in the sleeve and extending from the first end towards the second end, the sleeve being characterized in that it comprises at least one tab extending transversely, particularly radially relative to the axis of the sleeve.
  • the electrical contact between the sleeve and the connector body can be reinforced.
  • the positioning of the sleeve on the body can be made simpler by the presence of the one or more lugs, which can guarantee that the points of contact with the complementary type connector which are defined at the first end of the body. sleeve are well positioned with respect to this complementary type connector.
  • the axial position of the sleeve in a barrel when the sleeve is placed on the body can be ensured, the tab being able to oppose axial displacements of the sleeve in the barrel.
  • the tab can be made in one piece with the rest of the sleeve.
  • the tab is attached to the sleeve.
  • the connection between each lug and the sleeve can be made by riveting, crimping or welding.
  • the tab may be provided at the second end of the sleeve.
  • the tab may extend transversely outwardly of the sleeve.
  • the tab extends for example radially, that is to say perpendicular to the axis of the sleeve and towards the outside of the latter, which can prevent the sleeve from sliding in the barrel.
  • the sleeve may have a plurality of tabs. These tabs can be of the same dimensions and evenly distributed around the axis of the sleeve.
  • the sleeve may comprise at its first end a plurality of slots, two adjacent slots defining a flexible tongue carrying one or more points of contact with the complementary type connector.
  • Each tongue may extend obliquely towards the inside of the sleeve relative to the axis of the sleeve.
  • the sleeve may have an inner housing in which the pin of the complementary type connector may be inserted.
  • the sleeve may have an outer diameter of between 2 and 20 mm.
  • the sleeve may have a height of between 5 and 50 mm.
  • the term "height" denotes the dimension of the sleeve measured along its axis.
  • the axis of the sleeve can be rectilinear.
  • the sleeve can be obtained using the so-called "cut-rolled” technology or by stamping.
  • the lug (s) of the sleeve may be disposed between the body and the shank when the connector is assembled.
  • the body is attached to the barrel, for example by crimping and in particular by circular crimping, and such an operation can make it possible to increase the contact pressure between the lug (s) of the sleeve (s) and the body. This increase in the contact pressure can make it possible to reduce the electrical resistance between the sleeve (s) and the body.
  • the chain of resistors along the mated connectors can thus be further reduced.
  • the barrel may comprise a housing inside which the sleeve is disposed.
  • the connector may comprise at least two sleeves, these two sleeves having different dimensions.
  • the dimensions of the sleeves may be chosen so that one of the sleeves is received inside the other sleeve.
  • the dimensions of the sleeves can be chosen so that the latter have a different height. When they are arranged in the barrel, the axis of the sleeves can be confused.
  • Each of the sleeves may have a first end with one or more slots defining tabs, as previously mentioned.
  • Such sleeves can make it possible to create a large number of points of contact between the connector and the complementary type connector, the latter being intended to be received inside the sleeve of smaller transverse dimension. A hundred points of contact can be created between the connector and the complementary type connector.
  • the heights of the sleeves may be different so that the first ends of each sleeve succeed each other along the barrel.
  • Each sleeve may or may not have the same number of tabs and the sleeves may be arranged inside the barrel so that from one sleeve to another, the legs do not occupy the same position on the periphery of the sleeve. barrel.
  • the drum may have a height at least equal to that of the sleeve, if necessary the sleeve of greater height, so as to define a means of protection of the sleeve or sleeves.
  • the barrel may extend beyond the first end of the sleeve, where appropriate the sleeve of greater height, so as to define a means for guiding the pin of the complementary type connector when it is coupled with the connector.
  • the connector comprises, for example, three sleeves each having slots at one end and tabs at a second end.
  • the lugs of each sleeve may be applied against a common part of the barrel and be brought into contact with the body.
  • the connector according to the invention can be configured to transmit an electrical signal of intensity of at least 10 A. It is for example of an intensity equal to 125 A and a power equal to a few tens of kW.
  • the connector is for example configured to be assembled on an electric cable, the body including a housing for receiving this cable.
  • This housing is for example not crossing.
  • the connector can be straight, having a rectilinear longitudinal axis.
  • the connector may alternatively be bent.
  • the connector according to the invention can also be applied to the connection between an electric cable and a charging station only at the connection between an electric cable and the electric vehicle.
  • the vehicle may have two, three or four wheels, or more. This is for example a car, a motorcycle or an electric bike.
  • the connector according to the invention can be a connector of the male type or of the female type.
  • a male type connector according to the invention and a female type connector according to the invention can form a male-female connection.
  • the figure 1 schematically represents a connector generally designated 1 according to a first embodiment of the invention.
  • This connector 1 is configured to be coupled to a connector 2 of complementary type.
  • the connector 1 is in the example described a socket, while the connector 2 is a pin, but the invention is not limited to such an example.
  • the connectors 1 and 2 make it possible to transmit an electric signal of intensity greater than 10A, for example as part of the charging of an electric vehicle.
  • the connector 1 is shown in isolation on the figure 3 .
  • This connector 1 comprises a body 4, one or more sleeves 5 and a shank 6.
  • three sleeves 5 are provided but the invention is not limited to a particular number of sleeves, this number being be between one and three, or greater than three.
  • the body 4 comprises a non-through interior housing 8 in which can be arranged a not shown electrical cable on which is mounted the connector 1.
  • the body 4 may be made of metal, for example copper, brass, aluminum or any other material having good electrical conduction properties. For example we can choose materials with a% IACS> 50%.
  • IACS stands for International Annealed Copper Standard. % IACS is a way of comparing the electrical conductivities of materials with the conductivity of pure copper.
  • This body 4 extends along a longitudinal axis X and has an annular bearing surface 10 extending perpendicular to the axis X and around the latter.
  • This scope 10 is for example shown in detail on the figure 10 .
  • a flange formed by an annular wall 11 may extend from this bearing 10 in a direction opposite to the rest of the body and along the axis X thereof.
  • This wall 11 surrounds in the illustrated example a tubular portion 7 projecting beyond said wall 11 and defining a longitudinal end of the body 4.
  • the annular wall 11 may have a larger transverse dimension smaller than that of the bearing surface 10 and a recess may be provided between bearing 10 and wall 11.
  • Each sleeve 5 has in the illustrated examples a substantially tubular shape about an axis, which coincides with the axis X of the body when the connector 1 is assembled. Subsequently, we will differentiate the sleeves according to their dimensions by speaking of "small sleeve”, “median sleeve” and “large sleeve”.
  • Each sleeve has at a first end 12 relative to the axis X a plurality of slots 14 extending from this first end 12 to a second end 13 of the sleeve, these slots 14 define tabs 15 whose role will be described next.
  • the slots 14 extend for example substantially parallel to the axis of the sleeve 5 over a distance of between 5 and 15% of the height of the sleeve. This distance can be calculated so that the geometry of the tongue thus defined is compatible with an elastic deformation of the tongue during the introduction of the pin into the sleeve.
  • the geometry of the tongue depends for example on at least one of the following parameters: length of the tongue, thickness of the material and angle of the tongue relative to the axis of the sleeve
  • This elastic deformation ensures that after a connection / disconnection cycle, the tongue returns to its rest position and is able to ensure a new connection / disconnection cycle without loss of electrical or mechanical properties of the sleeve.
  • the tongues may extend obliquely with respect to the axis of the sleeve and towards the inside of the sleeve.
  • a through-housing 16 may be formed in each sleeve along the axis X, this housing extending between the first 12 and the second end of the sleeve 5.
  • Each sleeve 5 comprises in the example in question a plurality of tabs 17 formed at its second end 13.
  • Each sleeve may comprise the same number of tabs, this number being for example between two and ten.
  • the legs can, as can be seen, be evenly distributed around the axis of the sleeve.
  • the tabs 17 extend radially relative to the axis of the sleeve, towards the outside of the sleeve.
  • a slot 19, visible on the figure 4 may be formed over the entire height of each sleeve 5. This slot 19 may allow to slightly deform the sleeve during its assembly inside the barrel or another sleeve of larger diameter. By returning to its initial position, the sleeve 5 can remain plated on its outer diameter in the barrel or in a sleeve of larger diameter.
  • each sleeve 5 is made from a sheet of metal which is first cut to make the slots and legs, then these shapes are arched to the desired geometry and finally the assembly is wound for give an approximately cylindrical shape.
  • the slot 19 is delimited by the edges of the wound metal sheet.
  • the sleeves 5 are obtained otherwise than with the aid of so-called "cut-and-roll" technology, for example by stamping, and the sleeves 5 may be devoid of such slots 19.
  • Each sleeve 5 is for example made of copper, brass, aluminum or any other material (s) having satisfactory electrical conduction properties and good elasticity properties.
  • the sleeves 5 may have different transverse and longitudinal dimensions, so that a sleeve can be disposed entirely, both transversely and longitudinally, inside another sleeve.
  • the small sleeve 5 has transverse and longitudinal dimensions such that the latter is fully received at the inside of the medial sleeve, the tongues 15 of this median sleeve extending beyond the first end 12 of the small sleeve when the latter is disposed inside the middle sleeve.
  • Such different lengths of the sleeves 5 can allow, when they are arranged in each other, to obtain a succession of tongues 15 along the axis common to the sleeves, to obtain a large number of contact points with the pin of the complementary type connector 2 when the latter is inserted inside the housing 16 formed in the small sleeve.
  • the barrel 6 may have a generally tubular shape whose axis is common with that of the sleeve or sleeves 5 and the body 4 when the connector 1 is assembled.
  • This shaft may have a longitudinal end 20 intended to cooperate with the body 4.
  • the longitudinal end 20 may be formed by a frustoconical portion 21 having a wall receiving the crimping 22 diverging from the shaft axis and a perpendicular bottom wall 23 to the axis of the shaft 6.
  • the bottom wall 23 may extend all the way around the axis of the shaft and have a larger transverse dimension, in particular a diameter, allowing this bottom wall 23 to be received at the center of the shaft.
  • a through-housing 25 can be defined in the shank 6, this housing 25 extending along the axis of the shank 6.
  • the drum 6 can extend along its axis along a length at least equal to that of the larger sleeve 5, or over a length greater than that of the larger sleeve 5, so as to provide both a protective function sleeves 5 and a guiding function of the complementary type connector 2 when the latter is introduced into the barrel 6 to be connected to the connector 1, as shown in FIGS. Figures 1 and 2 .
  • a first step represented on the figure 4 the largest sleeve 5 is introduced into a housing 25 formed in the barrel 6, this housing 25 having a shape and dimensions adapted to receive this large sleeve 5.
  • the tabs 17 of the large sleeve 5 rest against the bottom wall 23 of the barrel 6.
  • the median sleeve 5 is disposed in the housing 16 formed in the large sleeve 5.
  • the lugs 17 of the middle sleeve 5 rest against the bottom wall 23 of the barrel 6, the median sleeve 5 being advantageously introduced into the large sleeve 5 so that its lugs 17 do not overlap those of the large sleeve, that is to say so that the lugs 17 of the median sleeve occupy on the periphery of the bottom wall 23 positions different from those occupied by the legs of the large sleeve 5.
  • a next step represented in figure 7 the small sleeve 5 is introduced into the housing 19 formed in the middle sleeve 5.
  • the tabs 17 of each of the sleeves can be applied against the bottom wall 23 without overlapping each other, each sleeve 5 having been advantageously positioned in the barrel 6 to obtain this result.
  • a next step which is represented at figure 9 , the body 4 is applied against the subset "barrel-sleeves" obtained at the end of the previous steps. During this step, bring the bearing 10 of the body 4 in abutment against the bottom wall 23 of the barrel 6 and the tubular portion 7 defining one end of the body 4 inside the housing 19 formed in the small sleeve, as one can see it on the figure 9 .
  • the lugs 17 of the sleeves 5 are trapped between a transverse wall of the bearing surface 10 of the body 4 and the bottom wall 23 of the barrel 6.
  • the body 4 is secured to the barrel 6 and to the sleeves 5.
  • This joining consists in the example described in a crimping of the body 4 on the barrel 6.
  • the annular wall 11 of the body is for example crimped on the crimping wall 22 of the frustoconical portion 21 of the barrel 6.
  • the connector 1 is assembled as shown on the figure 12 , which ensures the mechanical maintenance of the various elements of the connector 1 and the increase of the pressure forces between the sleeves 5 and the body 4. Micro-welding may occur during this crimping.
  • the invention thus makes it possible to obtain a connector adapted to establish a plurality of contact points with a connector of complementary type, for example a pin whose diameter is less than 10 mm, for example 6 mm in which case the connector according to the invention.
  • a connector of complementary type for example a pin whose diameter is less than 10 mm, for example 6 mm in which case the connector according to the invention.
  • invention can be a socket.
  • the connector 1 according to the invention and the complementary type connector 2 may have a very low contact resistance, for example less than 0.5 m ⁇ .
  • the force required for coupling and uncoupling connectors 1 and 2 may be relatively low, being for example less than 10 N, especially less than 7N.
  • a connector 1 according to the invention can be particularly resistant to currents of high intensity, especially currents whose intensity is greater than 10 A.
  • the heating induced by the transmission of such a current can be relatively low.
  • the heating after three hours at the connection between the cable and the pins can be less than 50 ° K.
  • the pin of the complementary type connector comprises an insulating cover.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
EP12150769.3A 2011-01-14 2012-01-11 Anschlussmuffe für elektrischen Anschluss, und Zusammenbauverfahren Active EP2477278B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1150317A FR2970605B1 (fr) 2011-01-14 2011-01-14 Manchon pour connecteur electrique et son procede d'assemblage.

Publications (2)

Publication Number Publication Date
EP2477278A1 true EP2477278A1 (de) 2012-07-18
EP2477278B1 EP2477278B1 (de) 2016-05-11

Family

ID=44246125

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12150769.3A Active EP2477278B1 (de) 2011-01-14 2012-01-11 Anschlussmuffe für elektrischen Anschluss, und Zusammenbauverfahren

Country Status (4)

Country Link
US (1) US8597065B2 (de)
EP (1) EP2477278B1 (de)
CN (1) CN102593638A (de)
FR (1) FR2970605B1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102023916B1 (ko) * 2012-07-23 2019-09-23 에스케이이노베이션 주식회사 전지모듈의 전극단자 및 터미널 연결장치
JP6053613B2 (ja) * 2013-06-07 2016-12-27 矢崎総業株式会社 雌端子
WO2015053295A1 (ja) * 2013-10-07 2015-04-16 矢崎総業株式会社 メス端子
CN106785571A (zh) * 2017-02-15 2017-05-31 深圳市土川投资管理有限公司 一种大电流连接器
CN109216982A (zh) * 2018-08-28 2019-01-15 中航光电科技股份有限公司 一种莲花式插孔插针组件
KR20210138998A (ko) * 2020-05-13 2021-11-22 삼성에스디아이 주식회사 배터리 팩
CN113314870B (zh) * 2021-05-13 2024-04-02 长春捷翼汽车科技股份有限公司 一种适配不同接口的异型端子
CN113844294A (zh) * 2021-11-30 2021-12-28 张家港友诚新能源科技股份有限公司 一种充电枪中的液冷式枪头

Citations (6)

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Publication number Priority date Publication date Assignee Title
NL6406224A (de) * 1963-06-10 1964-12-11
US4657335A (en) * 1986-01-30 1987-04-14 K & K Stamping Radially resilient electrical socket
US5735716A (en) * 1996-09-18 1998-04-07 Yazaki Corporation Electrical connectors with delayed insertion force
US20030068931A1 (en) * 2001-10-05 2003-04-10 Swearingen Dean D. Radially resilient electrical connector and method of making the same
US6899571B1 (en) * 2000-05-11 2005-05-31 Konnektech Ltd. Radially resilient electrical connector with welded grid
WO2009099789A1 (en) 2008-02-04 2009-08-13 Methode Electronics, Inc. Stamped beam connector

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US5667413A (en) * 1995-11-13 1997-09-16 Alcoa Fujikura Ltd. Socket-type electrical connector
JPH1169782A (ja) * 1997-08-11 1999-03-09 Seiko Epson Corp 電源回路及び液晶表示装置及び電子機器
US6482049B1 (en) * 1999-07-16 2002-11-19 Amphenol Corporation Radially resilient electrical connector
US6328615B1 (en) * 2000-03-02 2001-12-11 Itt Manufacturing Enterprises, Inc. Contact formed of joined pieces
JP2005510038A (ja) * 2001-10-18 2005-04-14 コネクテック・リミテッド 電気コネクター格子アンカー及びその製造方法
US6752668B2 (en) * 2002-08-14 2004-06-22 Konnektech, Ltd. Electrical connector
US7387532B1 (en) * 2007-04-30 2008-06-17 Cheng Uei Precision Industry Co., Ltd. Power connector

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6406224A (de) * 1963-06-10 1964-12-11
US4657335A (en) * 1986-01-30 1987-04-14 K & K Stamping Radially resilient electrical socket
US5735716A (en) * 1996-09-18 1998-04-07 Yazaki Corporation Electrical connectors with delayed insertion force
US6899571B1 (en) * 2000-05-11 2005-05-31 Konnektech Ltd. Radially resilient electrical connector with welded grid
US20030068931A1 (en) * 2001-10-05 2003-04-10 Swearingen Dean D. Radially resilient electrical connector and method of making the same
WO2009099789A1 (en) 2008-02-04 2009-08-13 Methode Electronics, Inc. Stamped beam connector

Also Published As

Publication number Publication date
CN102593638A (zh) 2012-07-18
US20120184158A1 (en) 2012-07-19
FR2970605A1 (fr) 2012-07-20
FR2970605B1 (fr) 2013-02-08
US8597065B2 (en) 2013-12-03
EP2477278B1 (de) 2016-05-11

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