• 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 safety device (100) for a pull-out socket connected to a plurality of electrical conductors and having a connector which, for each electrical conductor, has a female electrical contact connected to said electrical conductor. The safety device (100) comprises: - a housing (102) made of electrically insulating material, - for each female electrical contact, a male electrical contact (106) of electrically conductive material protruding from the housing (102) and provided for inserted in said female electrical contact, - clipping means (108) provided for clipping an electrical signal, - a printed circuit (104) housed in the housing (102) and having conductive tracks connecting the male electrical contacts ( 106) and the clipping means (108). The establishment of such a safety device prevents the propagation of an electrical surge beyond the safety device.
    公开号:FR3028101A1
    申请号:FR1460634
    申请日:2014-11-04
    公开日:2016-05-06
    发明作者:Frederic Forget
    申请人:Airbus Operations SAS；
    IPC主号:
    专利说明:

    [0001] The present invention relates to a safety device for a pull-out socket, and a socket system having a pull-out socket and such a safety device. Fig. 1 shows an aircraft 10 which is stationary on the ground. The aircraft is supplied with electricity by a generator 20 by means of a power cable 30 which comprises several electrical conductors and at the end of which is provided an end connector 40 having an electrical contact for each conductor electric. To allow the connection with the generator 20, the aircraft 10 has a connection connector 50 having, for each electrical conductor, an electrical contact downstream of which is connected an onboard conductor 14 in the aircraft 10 and to which is connected at least an electrical element 12 of the aircraft 10. The connection between the end connector 40 and the connection connector 50 is effected via a socket 60.
    [0002] Fig. 2 shows an example of a socket 60 having a chassis 61 with a first connector 62 having, for each electrical contact of the end connector 40, an electrical contact which comes to connect electrically with said electrical contact of the end connector 40 , and a second connector 64 comprising, for each electrical conductor, an electrical contact 65 (here female) electrically connected to the electrical contact of the corresponding first connector 62, and which is intended to connect to an electrical contact (here male) of the connector of connection 50. The socket 60 here allows the connection of six electrical conductors which are referenced here by the letters A, B, C, N, E and F. The connection connector 50 then comprises for each electrical conductor A, B, C , N, E, F, an on-board conductor 14 electrically connected to an electrical conductor A, B, C, N, E, F through the second connector 64 and connects it The socket 60 has a third connector 66 which, for each electrical conductor, has a female electrical contact 68, electrically connected to the electrical contact of the first connector 62 connected to said electrical conductor, and allowing for example the connection of a connection member of a multimeter. The connection of the generator 20 to the aircraft 10 creates a loop.
    [0003] When the lightning strikes the ground in the vicinity of the aircraft 10, a portion of the magnetic field induced by the lightning generates a voltage drop in the loop, creating an inductive coupling which generates an electrical surge in the power cable 30. electrical overvoltage propagates to the aircraft 10 at the risk of damaging certain electrical elements 12 of the aircraft 10. An object of the present invention is to provide a safety device which does not have the drawbacks of the prior art and which in particular avoids the propagation of an electrical surge up to the aircraft For this purpose, is proposed a safety device for a plug socket connected to a plurality of electrical conductors and having a connector which, for each electrical conductor, present a female electrical contact adapted to be electrically connected to said electrical conductor, said safety device comprising a housing made of electrically insulating material, for each female electrical contact, a male electrical contact made of electrically conductive material protruding from the housing and adapted to fit into said female electrical contact, clipping means provided for clipping an electrical signal, - a printed circuit housed in the housing and having conductive tracks connecting the male electrical contacts and the clipping means. Such a safety device can thus connect to a socket and avoids the propagation of an electrical surge to the aircraft by clipping the signal. Advantageously, one of the conductors is the neutral, and between each male electrical contact corresponding to an electrical conductor different from the neutral and the male electrical contact corresponding to the neutral is arranged a clipping means. Advantageously, each clipping means is an assembly of a diode or of several diodes connected in series between the male electrical contact corresponding to each electrical conductor outside the neutral and the male electrical contact corresponding to the neutral.
    [0004] According to a particular embodiment, when the electrical conductor is an electrical conductor carrying a low voltage current, the clipping means consists of four diodes connected in series.
    [0005] According to a particular embodiment, when the electrical conductor is an electrical conductor carrying a very low voltage current, the clipping means consists of a diode. The invention also proposes a plug-in system connected to a plurality of electrical conductors and comprising: a plug-in socket comprising: a first connector having, for each electrical conductor, an electrical contact intended to be connected to said each electrical conductor; second connector having, for each electrical contact of the first connector, an electrical contact electrically connected to said electrical contact of the first connector and downstream of which is connected at least one electrical element to be protected, and - a third connector having, for each electrical contact of the first connector, a female electrical contact electrically connected to said electrical contact of the first connector, and - a safety device according to one of the preceding embodiments, wherein each male electrical contact is inserted into a female electrical contact of the third connector. Advantageously, each clipping means is an assembly of a diode or of several diodes connected in series between the male electrical contact corresponding to each electrical conductor outside the neutral and the male electrical contact corresponding to the neutral, and each diode has a time transition time less than the time during which each electrical element to be protected can accept a surge without damage.
    [0006] Advantageously, each diode has a maximum intensity of current that can flow there, greater than the intensity of the current during the overvoltage. Advantageously, for each conductor, the number of diodes is the integer which is just greater than the ratio between the maximum voltage flowing in the electrical conductor and the limit voltage.
    [0007] Advantageously, the housing is sealed on the pull-out socket. The characteristics of the invention mentioned above, as well as others, will appear more clearly on reading the following description of an exemplary embodiment, said description being made in connection with the attached drawings, among which: FIG. . 1 shows an aircraft on the ground connected to a generator, FIG. 2 shows a pull-out socket of the state of the art, FIG. 3 shows a partial section of a safety device according to the invention, and FIG. 4 shows an electrical diagram of the safety device according to the invention. Fig. 3 shows a safety device 100 which is intended to be implemented in the context of a socket 60 of the type of that of FIG. 2 and in the context of an installation such as that of FIG. 1, with a generator 20 and an aircraft 10 having a connection connector 50.
    [0008] The socket 60 thus also includes a first connector 62 which for each electrical conductor from the generator 20 has an electrical contact electrically connected to said electrical conductor through an end connector 40. The socket 60 also includes a second connector 64 presenting, for each electrical contact of the first connector 62, an electrical contact 65 electrically connected to said electrical contact of the first connector 62 and therefore to the associated electrical conductor. Each electrical contact 65 is provided to connect to an electrical contact of the connection connector 50, an electrical contact downstream of which is connected an embedded conductor 14 connected to electrical elements 12 to be protected. The trunk socket 60 thus also comprises a third connector 66 which, for each electrical contact of the first connector 62, has a female electrical contact 68 electrically connected to said electrical contact of the first connector 62 and therefore to the associated electrical conductor.
    [0009] In the context of the invention, the third connector 66 receives the safety device 100. Of course, it is possible to provide a plug socket of another type where the electrical conductors A, B, C, E, F and N have a different location and where their number is different.
    [0010] The safety device 100 comprises: a housing 102 made of electrically insulating material, for each female electrical contact 68, a male electrical contact 106 made of electrically conductive material, protruding with respect to the housing 102 and intended to fit into said electrical contact female 68, - clipping means 108 provided for clipping an electrical signal, - a printed circuit 104 housed in the housing 102 and having conductive tracks connecting the male electrical contacts 106 and the clipping means 108. Thus, by connecting the safety device 100 on the third connector 66, an electrical surge on one of the electrical conductors is clipped by the clipping means 108 and the components of the aircraft 10 are protected. In normal mode, the clipping means 108 are transparent, however, beyond a certain voltage, the clipping means 108 will clip the signal. Fig. 4 shows a diagram of an electrical circuit 200 of the printed circuit 104 of the security device 100 in a preferred embodiment. In this embodiment, the first electrical conductors A, B and C are electrical conductors carrying a low voltage current which is preferably of the order of 115-200V to 400Hz, the second electrical conductors E and F are electrical conductors carrying a very low voltage current which is preferably of the order of 28V and 0.5A, and the third electrical conductor N is the neutral connected to ground. The first electrical conductors A, B and C are the phases. The second electrical conductors E and F are called "control discretes".
    [0011] Between each male electrical contact 106 corresponding to a first electrical conductor A, B and C or a second electrical conductor E and F, that is to say an electrical conductor A, B, C, E, F different from the neutral N , and the male electrical contact 106 corresponding to the neutral N, is arranged a clipping means 108a, 108b. The clipping thus consists, in the event of an electrical surge in an electrical conductor A, B, C, E, F, of putting this electrical conductor in the neutral which is itself connected to the mass of the aircraft 10. Preferably, each clipping means 108a, 108b is an assembly of a diode 204 or a plurality of diodes 202 connected in series between the male electrical contact 106 corresponding to each electrical conductor A, B, C, E, F outside the neutral N and the male electrical contact 106 corresponding to the neutral N. In this embodiment of the invention, when the voltage in the electrical conductor A, B, C, E, F exceeds the limit voltage (also called "inverting voltage" or " clipping voltage "or else" clamping voltage "in English terminology) of the diode (s) 202, 204, these change from a blocking state to a conductive state and become conductive and evacuate the electrical surge towards the neutral N who is himself connected to the mass e of the aircraft 10. For each electrical conductor A, B, C, E, F, outside the neutral N, coming from the generator 20, the characteristics and the number N of diodes 202, 204 are chosen according to the conditions of use of the safety device 100. The characteristics of a diode 202, 204 are: the transition time between the blocking state and the on state, the maximum intensity of current that can flow in the diode 202, 204, and - the limit voltage from which the diode becomes conductive (or passing).
    [0012] The conditions of use are: - the intensity of the current during the overvoltage, - for each electrical conductor, the maximum voltage flowing in said electrical conductor (with preferably a margin of 10 to 15% corresponding to the conventional fluctuations of the voltage circulating in a generator 20), and - the time during which each electrical element 12 to be protected can accept an overvoltage without damage. For an electrical conductor and associated onboard conductor 14, each diode 202, 204 is first selected so that its transition time is less than the time during which the electrical element 12 to be protected and electrically connected to said onboard conductor 14 , can accept an overvoltage without damage, then among these diodes 202, 204, only the diodes 202, 204 whose maximum intensity of current flowing there is greater than the intensity of the current during the overvoltage are retained. For each model of diodes 202, 204 satisfying these two criteria and for each electrical conductor, the number N of diodes is then the integer which is just greater than the ratio between the maximum voltage flowing in the electrical conductor, and the limit voltage of the 202, 204. For the sake of optimization, the diode 202, 204 for which N is the smallest is chosen.
    [0013] It is also possible to take into account additional criteria. For example, diodes 202, 204 having a lower residual voltage will be preferred, or diodes 202, 204 capable of dissipating greater power will be preferred.
    [0014] In the case of the first electrical conductors A, B and C, the clipping means 108a consists of four identical diodes 202 and connected in series. In the case of the second electrical conductors E and F, the clipping means 108b consists of a diode 204.
    [0015] The diodes 202, 204 are for example diodes with the reference 30KPA54CA or 30KPA58CA of the manufacturer Littlefuse. The safety device 100 and the pull-out socket 60 constitute a gripping system according to the invention and which is connected to the plurality of electrical conductors. To prevent moisture or dust from entering the female electrical contacts 68 and the male electrical contacts 106, the housing 102 is sealed to the socket 60. According to a particular embodiment of the invention, the conductor length between the male electrical contact 106 corresponding to the neutral N and the mass is less than 0.85 m and its resistance is less than 50pS2.15
    权利要求:
    Claims (10)
    [0001]
    CLAIMS1) Safety device (100) for a pull-out socket (60) connected to a plurality of electrical conductors and having a connector (66) which, for each electrical conductor, has a female electrical contact (68) intended to be electrically connected to said conductor electrical conductor, said safety device (100) comprising: - a housing (102) made of electrically insulating material, - for each female electrical contact (68), a male electrical contact (106) projecting from the housing (102) and adapted to be inserted into said female electrical contact (68), - clipping means (108, 108a, 108b) provided for clipping an electrical signal, - a printed circuit (104) housed in the housing (102) and having conducting tracks connecting the male electrical contacts (106) and the clipping means (108, 108a, 108b).
    [0002]
    2) Safety device (100) according to claim 1, characterized in that one of the conductors (N) is the neutral, and in that between each male electrical contact (106) corresponding to an electrical conductor (A, B) , C, E, F) different from the neutral (N) and the male electrical contact (106) corresponding to the neutral (N) is arranged a clipping means (108a, 108b).
    [0003]
    3) Safety device (100) according to claim 2, characterized in that each clipping means (108a, 108b) is an assembly of a diode (204) or a plurality of diodes (202) connected in series between the contact electric male (106) corresponding to each electrical conductor (A, B, C, E, F) outside the neutral (N) and the male electrical contact (106) corresponding to the neutral (N).
    [0004]
    4) Safety device (100) according to claim 3, characterized in that when the electrical conductor is an electrical conductor carrying a low voltage current, the clipping means (108a) consists of four diodes (202) connected in series. .
    [0005]
    5) Safety device (100) according to claim 3, characterized in that when the electrical conductor is an electrical conductor carrying a very low voltage current, the clipping means (108b) consists of a diode (204).
    [0006]
    6) Socket system connected to a plurality of electrical conductors and comprising: - a socket (60) comprising: - a first connector (62) having, for each electrical conductor, an electrical contact intended to be connected to said each electrical conductor, a second connector (64) having, for each electrical contact of the first connector (62), an electrical contact (65) electrically connected to said electrical contact of the first connector (62) and downstream of which is connected at least one electrical element (12). ) to be protected, and - a third connector (66) having, for each electrical contact of the first connector (62), a female electrical contact (68) electrically connected to said electrical contact of the first connector (62), and - a safety device (100) according to one of claims 1 to 5 wherein each male electrical contact (106) is inserted into a female electrical contact (68) of the third e connector (66).
    [0007]
    7) A gripping system according to claim 6, characterized in that each clipping means (108a, 108b) is an assembly of a diode (204) or of a plurality of diodes (202) connected in series between the male electrical contact ( 106) corresponding to each electrical conductor (A, B, C, E, F) outside the neutral (N) and the male electrical contact (106) corresponding to the neutral (N), and in that each diode (202, 204 ) has a transition time less than the time during which each electrical element (12) to be protected can accept an overvoltage without damage.
    [0008]
    8) A gripping system according to claim 7, characterized in that each diode (202, 204) has a maximum current intensity that can flow there greater than the intensity of the current during overvoltage.
    [0009]
    9) Socket system according to claim 8, characterized in that, for each conductor, the number of diodes (202, 204) is the integer which is just greater than the contribution between the maximum voltage flowing in the electrical conductor and a limit voltage , corresponding to the value of the voltage for which the diode goes from a blocking state to a conductive state.
    [0010]
    10) gripping system according to one of claims 6 to 9, characterized in that the housing (102) is sealed on the socket (60).
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    同族专利:
    公开号 | 公开日
    FR3028101B1|2018-02-02|
    EP3018771B1|2020-01-22|
    US20160122037A1|2016-05-05|
    US9944406B2|2018-04-17|
    CN105576454B|2019-07-09|
    CN105576454A|2016-05-11|
    EP3018771A1|2016-05-11|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR2600465A1|1986-06-18|1987-12-24|Citel Cie Indle Tubes Lampes E|PROTECTION AGAINST OVERVOLTAGES ON TELEPHONE LINES OR LINES FOR TRANSMITTING INFORMATION OR THE LIKE|
    EP0268947A1|1986-11-17|1988-06-01|Alcatel Business Systems|Protective device for the terminal equipment at a telephone subscriber's|
    US5543999A|1992-09-24|1996-08-06|Riley; Andrew T.|Surge protector for computer equipment|
    US7547997B1|2007-09-28|2009-06-16|The United States Of America As Represented By The Secretary Of The Navy|Aircraft electrical servicing adapter|EP3372510A1|2017-03-07|2018-09-12|Airbus Operations S.A.S.|Lightning protection system for an aircraft|US7484689B2|2002-07-19|2009-02-03|Illinois Tool Works Inc.|Aviation ground power unit connection system and method incorporating same|
    US7682198B1|2007-12-13|2010-03-23|Plattner Wesley M|Power adapter for an aircraft|
    US8922961B2|2009-09-25|2014-12-30|Hamilton Sundstrand Corporation|Two-level lightning protection circuit|
    US8840405B2|2010-08-11|2014-09-23|John Bean Technologies Corporation|Aircraft GPU connection method and apparatus|
    CN201937143U|2010-12-14|2011-08-17|许继电气股份有限公司|Switching module of Roche electronic transformer|
    US8808033B2|2012-05-30|2014-08-19|Cooper Technologies Company|Ground power connector saver|
    EP2720340B1|2012-10-15|2015-01-21|Airbus Operations GmbH|Electric power supply system for an aircraft, aircraft and airport power supply system|FR3068833B1|2017-07-10|2020-09-11|Safran Nacelles|ELECTRICAL CONNECTOR FOR AIRCRAFT FAIRING|
    DE102018101556A1|2017-11-28|2019-05-29|Riedel Communications International GmbH|Aircraft, lightning protection system and method of providing lightning protection|
    FR3077685B1|2018-02-08|2020-11-13|Airbus Helicopters|CONNECTOR, ELECTRICAL AND AIRCRAFT ARCHITECTURE|
    FR3079679B1|2018-03-29|2021-05-07|Amphenol Air Lb|ELECTRICAL ENERGY SUPPLY OF AN AIRCRAFT|
    法律状态:
    2015-11-19| PLFP| Fee payment|Year of fee payment: 2 |
    2016-05-06| PLSC| Publication of the preliminary search report|Effective date: 20160506 |
    2016-11-18| PLFP| Fee payment|Year of fee payment: 3 |
    2017-11-21| PLFP| Fee payment|Year of fee payment: 4 |
    2019-11-20| PLFP| Fee payment|Year of fee payment: 6 |
    2021-08-06| ST| Notification of lapse|Effective date: 20210705 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1460634|2014-11-04|
    FR1460634A|FR3028101B1|2014-11-04|2014-11-04|SAFETY DEVICE FOR A GIGOGNE SOCKET|FR1460634A| FR3028101B1|2014-11-04|2014-11-04|SAFETY DEVICE FOR A GIGOGNE SOCKET|
    EP15192275.4A| EP3018771B1|2014-11-04|2015-10-30|Assembly comprising a connection system for lightning protection of an aircraft|
    US14/931,345| US9944406B2|2014-11-04|2015-11-03|Safety device for an extension socket|
    CN201510932600.6A| CN105576454B|2014-11-04|2015-11-04|Safety device for extension socket|
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