• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a sealed housing for a high-current device, intended in particular to take place in the engine compartment of a motor vehicle. A device, such as a printed circuit board (8) housed in the housing, is connected to an electrical harness (4) using at least one conductive metal rigid bar (9) ("busbar" according to the English terminology). -saxonne). A ring (14) is interposed between the rigid conductive metal bar (9) and a lug (5) electrically connected to the harness (4). A bolt (7, 11) holds the lug (5), the ferrule (14) and the conductive metal rigid bar (9) tight together. In order to seal the housing at the bolt (7, 11), a first seal (22) is placed between the ring (14) and a non-threaded area (13a) of the rod (13). ) of the bolt (7, 11) and a second seal (17) is placed between the ring (14) and the housing.
    公开号:FR3038782A1
    申请号:FR1556402
    申请日:2015-07-06
    公开日:2017-01-13
    发明作者:Aymeric Perot；Erwan Guillanton
    申请人:Delphi International Operations Luxembourg SARL；
    IPC主号:
    专利说明:

    The invention relates to the field of motor vehicles and more particularly the field of housings for high-current device.
    [002] High current circuits (up to 200A, for example) have been developed by the automobile industry, for example for hybrid vehicles, for automatic starting and stopping systems of the engine when the vehicle is at a standstill. stop ("start & stop" system according to the English terminology), etc.
    [003] These circuits sometimes have components placed in the engine compartment and it is therefore necessary that they are protected, with high efficiency, moisture, or even projections of liquids. To this end, some of these components are placed in boxes and these boxes must correspond to specifications of the IP9K and IPx7 type. In other words, they must be watertight enough to successfully pass water and water immersion tests.
    [004] The current passage areas between, on the one hand, the circuits and devices housed in a sealed housing, and on the other hand a circuit, harness or electrical harness outside the housing, must therefore allow the conduction of high electrical intensities. , while forming a barrier sufficiently sealed to meet the requirements mentioned above.
    [005] For this purpose, waterproof connectors are generally used. However, the applicant has sought a more economical solution than the use of a waterproof connector.
    [006] Thus, it is proposed according to the invention, a sealed housing housing at least one strong current conduction element. Such an element is for example a rigid metal bar (also called "busbar" in the English terminology), but it can also be a braid provided with a lug, a shunt or any other appropriate element for the conduction currents at the intensities required by the application for which the housing is used. The housing also includes an electrically conductive metal ring, housed in a cavity in a wall of the housing. This ring comprises a lower surface oriented towards the inside of the casing and in electrical contact with the strong current conduction element. For example, the ring is in the form of a hollow cylinder with a lower surface and an upper surface substantially perpendicular to the longitudinal axis of the cylinder. The respective surfaces of the ring and the strong current conducting element, in contact with each other, are well pressed against each other in order to ensure good conduction of the current between these two parts.
    In addition, a watertight barrier is formed between a peripheral surface of the ring and the cavity in which it is housed. For example, if the ring is cylindrical, it has a convex cylindrical outer surface and the cavity in which it is housed has a concave cylindrical inner surface. Sealing between these two cylindrical surfaces can be ensured by a close contact between the two (obtained by overmolding the housing on the ring for example) or by placing a seal between them. For example, the outer peripheral cylindrical surface of the ring has an outer groove accommodating a seal in contact with both the ring and a surface of the housing.
    [008] The casing may furthermore comprise one or the other of the following characteristics, considered alone or in combination with one or more others: [009] - the ring is threaded onto an ankle, mechanically connected to the element strong current conduction; in this case, a watertight barrier can be made between an inner surface of the ring and the peg; thus, an outer cylindrical surface of the ankle may include a groove accommodating a seal in sealing contact with both the ring and the ankle; [0010] the ankle is mounted by force, and / or by means of clips or other retaining means, on the strong current conduction element; - The ring can occupy several positions along the ankle; for example, it can slide along the ankle to accommodate different thicknesses of strong current conduction element; and [0012] - a printed circuit is housed in the housing and the strong current conduction element is a rigid conductive bar electrically connected to the printed circuit.
    In another aspect, the invention relates to an assembly comprising a housing as mentioned above and at least one cable electrically connected to a lug clamped on an upper surface of the ring. Thus, most of the current transmitted between the strong current conduction element, inside the housing and the cable passes through the ring, with a sufficient section.
    According to yet another aspect, the invention relates to a method for connecting an external electrical cable to a housing with a strong current conducting element housed in this housing, in which a conductive ring is inserted between a connected terminal. to the cable and the strong current conducting element for passing an electric current between the terminal and the strong current conduction element essentially through the ring and in that the ring is housed in a cavity of the housing with a waterproof barrier between the ring and the housing. The thimble, the ring and the strong current conduction element can be held and tightened together with a peg passing through them.
    Other features and advantages of the invention will appear on reading the detailed description and accompanying drawings in which: - Figures 1A and 1B show, schematically in perspective and respectively from two different angles, an example of mode embodiment of a housing according to the invention; - Figure 2 shows schematically in perspective, and exploded, the housing of Figures 1A and 1B; - Figure 3 shows schematically in perspective and in cross section, the housing of Figures 1A, 1B and 2; and - Figure 4 shows schematically in longitudinal section, the housing of the previous figures.
    In these figures, the same references are used to designate identical or similar elements.
    The invention is illustrated below with the aid of an example of a particular embodiment of a sealed casing 1 for printed circuit, but this type of housing and the arrangements described below, can s' apply to other sealed housings housing other types of devices.
    This embodiment is shown in particular in Figures 1A and 1B. The housing 1 comprises a box 2 closed by a lid 3.
    The housing 1 is part of an assembly 100 also comprising four cables 4 each respectively electrically connected to a lug 5. Each lug 5 is housed in a cell 6 of the box 2, in which it is held by means of a nut 7 .
    As shown in Figure 2, a printed circuit 8 is housed in the housing 1. Three rigid metal bars 9 and a shunt 10 are mounted on the printed circuit 8, to which they are electrically connected.
    On each rigid metal bar 9 and on the shunt 10 is mounted a metal pin 11. Each pin 11 comprises a head 12 (see FIGS. 3 and 4) and a rod 13 with a smooth portion 13a (that is to say with a smooth cylindrical surface) and a threaded portion 13b (that is, ie whose cylindrical surface has a thread). The threaded portion 13b is located towards a longitudinal end of the rod 13 opposite to the head 12.
    On each pin 11 is threaded a ring 14. Each ring 14 is for example made of brass. The ring 14 has a hollow cylinder shape, it has a convex outer peripheral cylindrical surface 15 provided with a groove 16 accommodating an O-ring 17, an inner cylindrical concave surface 18, and a lower surface 19 and an upper surface 20 , plane and perpendicular to the longitudinal axis of the cylinder.
    The cylindrical surface of each smooth portion 13a of the pin 11 comprises another groove 21 accommodating another O-ring 22.
    On each pin 11 are also threaded a lug 5 and a nut 7.
    As shown in Figure 3, when the nut 7 is screwed and tightened on the threaded portion 13b, the ring 14 and the lug 5, on the one hand, and the ring 14 and the rigid metal bar 9 or the shunt 10, on the other hand, are tight on one another and held on each pin 11 by means of a nut 7. More precisely, the metal bar 9 or the shunt 10, the ring 14 and the lug 5 are tight together between the head 12 of the pin 11 and the nut 7. The lower plane surfaces 19 and upper 20 of the ring 14 are each respectively in contact with a corresponding flat surface of the rigid metal bar 9 or the shunt 10, d on the one hand, and pod 5 on the other. The conduction of strong currents can thus be carried out optimally, over a large section and without heating.
    As can also be seen in Figure 3, each ring 14 is housed in a cavity 23 of the housing 1. The O-ring 17 forms a sealed barrier between the housing 1 and the ring 14. The O-ring 22 forms a sealed barrier between the ring 14 and the smooth portion 13a of the ankle 11.
    Furthermore, an interfacial seal 24 seals the housing 1 between the box 2 and the lid 3. Thus, the sealing of the housing 1 is provided both by the O-rings 17, 22 at the rings. 14 and by the interfacial joint 24.
    As can be seen in Figure 4, the rings 14 may be placed higher or lower in the cavities 23, along their respective pin 11, since the O-rings 17, 22, placed in their respective grooves 16 , 21, maintain the seal on the cylindrical surfaces facing them. This arrangement makes it possible to accommodate strong current conduction elements 9, 10 of different thicknesses. The thickness of the strong current conduction elements 9, 10 can thus vary by several millimeters without it being necessary to use the different parts to compensate for variations in thickness. This simplifies and makes the manufacture and assembly of the housings less expensive.
    The method of connecting and wiring the housing 1 can be carried out in at least two steps: a first step in which the pins 11 and the rings 14 are mounted on the housing 1, and a second step, optionally made by another manufacturer, during which the cables 4 and the nuts 7 are mounted on the housing 1. Between these two steps, the rings are held in their respective cavity 13 thanks to the O-rings 17, 22 which exert sufficient friction on the cylindrical surfaces facing them. Alternatively or in addition, protuberances and / or notches on the rings 14 and / or the cavities 23 allow to hold the rings 14 in the latter.
    权利要求:
    Claims (11)
    [1" id="c-fr-0001]
    1. Watertight housing housing at least one strong current conduction element (9,10), characterized in that it comprises - an electrically conductive metal ring (14) housed in a cavity (23) formed in a wall of the housing (1), said ring (14) comprising a bottom surface (19) facing inwardly of the housing (1) and in electrical contact with the strong current conducting element (9,10) and - a sealed barrier water between an outer peripheral surface (15) of the ring (14) and the cavity (23) in which it is housed.
    [2" id="c-fr-0002]
    Housing according to claim 1, wherein the outer peripheral surface (15) of the ring (14) has an external groove (16) accommodating a seal (17) in contact with both the ring (14). and a surface of the housing (1).
    [3" id="c-fr-0003]
    3. Housing according to one of the preceding claims, wherein the ring (14) is threaded onto a pin (11), mechanically connected to the strong current conducting element (9,10).
    [4" id="c-fr-0004]
    4. Housing according to the preceding claim, wherein a watertight barrier is formed between an inner cylindrical surface (18) of the ring (14) and the dowel (11).
    [5" id="c-fr-0005]
    5. Housing according to the preceding claim, wherein the cylindrical surface of the dowel comprises a groove (21) accommodating a seal (22) in contact with both the ring (14) and with the dowel (11).
    [6" id="c-fr-0006]
    6. Housing according to the preceding claim, wherein the pin (11) is force-fitted on the strong current conduction element (9,10).
    [7" id="c-fr-0007]
    7. Housing according to one of the preceding claims, wherein the ring (14) can occupy several positions along the pin (11).
    [8" id="c-fr-0008]
    8. Housing according to one of the preceding claims, wherein a printed circuit (8) is housed in the housing (1) and the strong current conduction element (9,10) is an electrically conductive rigid bar (9). connected to the printed circuit (8).
    [9" id="c-fr-0009]
    9. Assembly comprising a housing according to one of the preceding claims and at least one cable (4) electrically connected to a lug (5) clamped on an upper surface (20) of the ring (14).
    [10" id="c-fr-0010]
    10. A method of connecting an external electrical cable (4) to a housing (1) to a strong current conducting element (9, 10) housed in this housing (1), characterized in that one interposed a conductive ring (14) between a lug (5) connected to the cable (4) and the strong current conducting element (9, 10) for passing an electric current between the lug (5) and the conduction element strong current (9,10) substantially through the ring (14) and in that the ring (14) is housed in a cavity (23) of the housing (1) with a watertight barrier between the ring (14) and the housing (1).
    [11" id="c-fr-0011]
    11. Method according to one of the preceding claims wherein the lug (5), the ring (14) and the strong current conducting element (9, 10) are held tight together by means of an ankle ( 11) crossing them.
    类似技术:
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    同族专利:
    公开号 | 公开日
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    FR3038782B1|2019-05-17|
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP1191637A1|2000-09-21|2002-03-27|Sörensen Hydraulik Zweigniederlassung, Ulfborg, Filial af Sörensen Hydraulik GmbH, Tyskland|Plug connector|
    WO2012161297A1|2011-05-20|2012-11-29|Yazaki Corporation|Connector|
    GB2497331A|2011-12-07|2013-06-12|Yasa Motors Ltd|Fluid-tight electrical connector|
    WO2014092629A1|2012-12-10|2014-06-19|Scania Cv Ab|Electrical coupling device for a machine|
    US5902150A|1997-01-09|1999-05-11|Illinois Tool Works Inc|Connector for a power supply|
    DE10119939A1|2001-04-23|2002-10-24|Mannesmann Rexroth Ag|Magnet coil arrangement e.g. for hydraulic valve, has sealing element between connector and tubular metal part|
    US8466586B2|2008-10-03|2013-06-18|GM Global Technology Operations LLC|High-voltage terminal assembly with integral high-voltage interlock|
    FR2957463B1|2010-03-09|2012-09-28|Bontaz Centre Sa|ELECTRICAL CONNECTION DEVICE SEALED THROUGH A WALL|
    US8759683B2|2011-07-15|2014-06-24|Hubbell Incorporated|Spark-over prevention device for high-voltage bushing|
    US8636541B2|2011-12-27|2014-01-28|Perfectvision Manufacturing, Inc.|Enhanced coaxial connector continuity|
    JP2015022922A|2013-07-19|2015-02-02|矢崎総業株式会社|Liquid-proof connector|
    US9337567B2|2014-03-31|2016-05-10|Lear Corporation|Seal for an electric terminal|
    KR20160000989U|2014-09-18|2016-03-28|엘에스산전 주식회사|Electric cunector|
    FR3038782B1|2015-07-06|2019-05-17|Aptiv Technologies Limited|SEALED HOUSING AND METHOD FOR CONNECTING THIS HOUSING TO AN ELECTRICAL CABLE|FR3038782B1|2015-07-06|2019-05-17|Aptiv Technologies Limited|SEALED HOUSING AND METHOD FOR CONNECTING THIS HOUSING TO AN ELECTRICAL CABLE|
    EP3795108A1|2016-01-06|2021-03-24|Boston Scientific Scimed, Inc.|Systems and methods for planning medical procedures|
    JP6814768B2|2018-06-15|2021-01-20|矢崎総業株式会社|Liquid-proof connector|
    法律状态:
    2016-07-26| PLFP| Fee payment|Year of fee payment: 2 |
    2017-01-13| PLSC| Search report ready|Effective date: 20170113 |
    2017-07-26| PLFP| Fee payment|Year of fee payment: 3 |
    2018-07-26| PLFP| Fee payment|Year of fee payment: 4 |
    2019-07-25| PLFP| Fee payment|Year of fee payment: 5 |
    2020-07-23| PLFP| Fee payment|Year of fee payment: 6 |
    2021-07-19| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1556402|2015-07-06|
    FR1556402A|FR3038782B1|2015-07-06|2015-07-06|SEALED HOUSING AND METHOD FOR CONNECTING THIS HOUSING TO AN ELECTRICAL CABLE|FR1556402A| FR3038782B1|2015-07-06|2015-07-06|SEALED HOUSING AND METHOD FOR CONNECTING THIS HOUSING TO AN ELECTRICAL CABLE|
    US15/189,161| US9673562B2|2015-07-06|2016-06-22|Sealed plug connector|
    EP16177045.8A| EP3116073B1|2015-07-06|2016-06-30|Sealed casing and method for connecting this casing to an electrical cable|
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