• 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:
    An electrical distribution box (1, 2) comprising first housings (4, 24) for accommodating power modules and second housings (5, 25) for accommodating electronic control modules, and an interface (6, 26) for to make the connections between the different modules and external electrical elements. The interface (6, 26) comprises at least one input power distribution bar (7, 27) extending in at least one first housing (4, 24) so as to be connectable to at least one module power supply, an input distribution bar (7, 27) being adapted to be connected to a cable of an electrical harness so as to connect at least one power module to the electrical harness.
    公开号:FR3018004A1
    申请号:FR1451394
    申请日:2014-02-21
    公开日:2015-08-28
    发明作者:Olivier Deshayes
    申请人:Zodiac Aero Electric SAS；
    IPC主号:
    专利说明:

    [0001] The invention relates to electric power distribution boxes, and more particularly to an electrical distribution box using removable electrical distribution modules. An aircraft generally has an electrical system including a primary electrical power distribution circuit and a secondary electrical power distribution circuit. These primary or secondary distribution circuits, also known as primary or secondary distribution boxes, make it possible to protect and distribute electrical power from internal sources, for example generators or batteries, or from external sources, such as power units. or a fleet group, to payloads or to other distribution boxes of the aircraft. A primary distribution box generally comprises a power section, for managing the high electrical power, and an electronic part. The power part relays cables using energy produced from electric generators driven by motors. A secondary distribution box is generally used in an aircraft to distribute electrical energy from a primary source to different systems of the aircraft. A secondary distribution box generally comprises a frame fixed on a support in a vehicle such as an aircraft, the chassis comprising a plurality of housings for accommodating power modules and / or electronic control modules. Power modules are typically electronic power control cards, also called SSPC (Solid State Power Controller) cards, which can be configured to deliver AC or DC power. The electronic control modules housed in the secondary distribution box generally make it possible to control the low-power electronic functions, such as communication, and calculations for example. The power modules interact with the electronic control modules to provide the necessary power for the control of the various electrical and electronic elements of the aircraft. In general, the electrical interfaces of a secondary distribution box are made using wired connectors. There are two types of connectors: a power connector to connect the modules to the wiring harness, also known as wiring harness, and a control connector to connect the modules to the motherboard. Each SSPC board consists of a power connector and a control connector. The power connector is connected, on the one hand, to the secondary distribution box via the SSPC card and, on the other hand, to the electrical harness. Generally, the electrical harness is mounted inside the secondary distribution box to connect the power cables to the corresponding modules. Such a configuration has the disadvantage that when a module fails and needs to be replaced, the secondary distribution box must be removed in its entirety and the electrical harness completely removed to repair or replace the faulty module. This entails a significant time cost especially during the reassembly of the secondary distribution box in the aircraft. In addition, each wiring harness must be tested. It is known from US 2003/0016520 an electrical distribution system comprising secondary distribution boxes made so that the SSPC cards can be individually removed for repair or replacement of the secondary distribution box. However, in this document, the secondary distribution box uses a single connector to connect the wiring harness of the electrical harness. The use of a single connector prevents any separation between the upstream power portion and the power distribution portion downstream of the distribution box. In addition, the type of connector used makes it necessary to multiply the protections necessary for the upstream power in the primary distribution because all the wires must be protected. The multiplication of connectors on the SSPC boards, and protections in the primary distribution boxes considerably increase the total mass of the electrical system. In addition, for high power, it is not possible to go through the cable connectors given the cost and the rectangular form of contacts. The positioning constraints of the power connectors for the electrical harness and the control connectors for the motherboard impose costly centering and retrofitting solutions. Finally, the total costs of the connectors for a secondary distribution box represent a significant percentage of the total cost of a secondary distribution box. The proposed invention aims to overcome the disadvantages mentioned above by replacing the input power connector with a distribution bar so as to optimize the interfaces of the secondary distribution boxes. According to one aspect of the invention, there is provided an electrical distribution box comprising first housings for accommodating power modules and second housings for accommodating electronic control modules, and an interface for making the connections between the different modules. and external electrical elements. According to a general characteristic of the invention, the interface comprises at least one input power distribution bar extending in at least one first housing so that it can be connected to at least one power module, a bar of input distribution being adapted to be connected to a cable of an electrical harness so as to connect at least one power module to the electrical harness. A distribution bar, or power bar, is a conductor bar to which are coupled, on the one hand, a source of electrical energy, and, on the other hand, different electrical organs to which is distributed the electrical energy received by the distribution bar. The source of electrical energy may be a generator in the case of a distribution bar of a primary electrical distribution box, or a primary electrical distribution box in the case of a distribution bar of a distribution box secondary electric. The electrical organs to which the electrical energy received by the distribution bar is distributed may be secondary distribution sub-networks or electric charges. The replacement of the power connector by a distribution bar makes it possible to reduce the cost and the mass of the secondary or primary distribution box, and to increase the maximum currents allowed for the power input, a distribution bar not being limited in terms of strong powers. In addition, the input power distribution bars being connected to several power modules, the number of wired and reduced connections and therefore the protections in the distribution, especially for the primary distribution, are considerably reduced in number. Indeed, it only takes one protection per distribution bar.
    [0002] In addition, the positioning constraints of the entire connector of the electrical harness are reduced. Indeed, the electrical harness cable harnesses intended are connected to a distribution bar via a single terminal block coupled to the distribution bar on the outside of the housing. The power modules are connected to the distribution bar by contact between a power connection of the module and the distribution bar of the same. Since there is no direct connection between a power module and an electrical harness wire harness, no alignment is required.
    [0003] Advantageously, the interface may comprise at least one output power distribution bar extending in at least one first housing so that it can be connected to at least one power module for supplying a load or an electrical distribution box. The use of a power distribution bar to deliver power output to the distribution box makes it possible to use high power power modules while optimizing the integration of the connectors and the mass of the connectors by reducing the number of connectors in total. In one embodiment, the interface may also include at least one individual output power connector extending into a first housing so as to be connectable to a power module for powering a load or an electrical distribution box. In this way, a distribution box can be used regardless of the connection configuration on the power modules to deliver the output power. The housing may also comprise in another embodiment at least one input power connector extending in a first housing so as to be connectable to a power module, the individual input connector being adapted to receive a cable from an electrical harness. Some housing can be dedicated to power modules while others are dedicated to control modules. It is also possible in this configuration to separate the housing into a distribution part and a secondary distribution part, the first housing of the primary distribution comprising distribution bars so as to receive high power while the first or second housing Secondary distribution includes individual connectors accepting lower powers. Preferably, each first housing comprises both an individual input power connector and an input power distribution bar comprises an electrical connection between said input power distribution bar and said individual power connector. Entrance. In such a configuration, the housing can accommodate power modules having input connectors for individual connectors or for busbar. Advantageously, the housing may comprise a control motherboard and a main chassis comprising said first and second housing, the motherboard being mounted on the outside of the main frame and adapted to be connected to at least a first or second housing. A motherboard external to the distribution box makes it possible to have a standard chassis and to be able to manage the number of additional modules of the distribution box. In this way, all electronic means are independent and removably mounted on the housing. Preferably, the control motherboard includes an input power connector. By integrating the motherboard into a standard connector or vice versa, the costs and the total mass of the distribution box are reduced. The housing may also advantageously comprise at least one additional frame adapted to be fixed to said main frame, the additional frame comprising at least a first housing and / or at least a second housing, and the control motherboard being mounted further on the outer of the additional frame so as to be also connected to at least a first housing and / or a second housing of the additional frame. The motherboard can be adapted according to the configuration and the number of modules used in the case, but also according to the number of additional frames fixed on the main frame. According to another aspect of the invention, there is provided an electrical distribution system comprising at least one electrical distribution box as defined above.
    [0004] The system may include at least one primary distribution box connected to at least one secondary distribution box, the primary distribution box may include secondary distribution modules.
    [0005] Other advantages and characteristics of the invention will appear on examining the detailed description of embodiments, in no way limiting, and the attached drawing, in which the figure shows, schematically, an electrical distribution system comprising a housing primary distribution 1 and a secondary distribution box 2 according to one embodiment of the invention. The primary distribution box 1 comprises a main frame 3 adapted to be fixed on a support or an internal structure of a vehicle such as an aircraft. The main frame 3 comprises six power housings 4 and five control housings 5. In other embodiments, a primary distribution box may comprise another non-zero number of power housings 4 and another number, which may be None of the control housings 5. The power slots 4 are configured to accommodate power modules such as SSPC (solid state power controller) type power cards and the control slots 5 are configured to accommodate control modules. electronics such as control cards. The primary distribution box 1 also comprises an interface 6 interconnecting the various power and control modules and external electrical devices. The external electrical organs are, on the one hand, sources of electrical energy, and, on the other hand, electrical loads or sub-networks for the distribution of electrical energy, in particular the secondary distribution box 2. The interface 6 of the primary distribution box 1 comprises a first distribution bar 7 of high power input extending over four power housing 4 dedicated to high power and referenced 41 to 44. The first distribution bar 7 can feed and up to four modules inserted into each of the four high power housings 41 to 44 with a large current. The first distribution bar 7 comprises a conductive bar 8 and a terminal block 9 for electrically connecting the conductor bar 8 to a cable H of a not shown electrical harness, the cable H of the electrical harness being connected elsewhere, in this example of realization, to a current generator. The first distribution bar 7 is arranged to have the conductive bar 8 on the inside of the main frame 3 of the primary distribution box 1 and the terminal block 9 on the outside of the main frame 3. The first distribution bar 7 can obviously be coupled to another energy source of a current generator.
    [0006] The first distribution bar 7 requires only one protection since there is only one cable connected to it, while it can supply up to four power modules since it is 4. In this embodiment, to reduce the cost and mass of the primary distribution box 1, the first power bar 7 is not doubled with individual input power connectors for each of the high power housings 41 to 44. In another embodiment, it is possible to double the first distribution bar 7 of individual input power connectors so that both power modules configured to be electrically connected can be used. In input using a distribution bar only power modules configured to be connected to the input power using individual input power connector. In this case, the power housings 4 must further comprise polarizers to adjust the position of the power modules when they are inserted in the power housings 4 to ensure the connection of the power module with the individual connector. When the power module is coupled to the input power using a distribution bar only, the positioning constraints of the electrical harness are reduced because the harnesses of the electrical harness are connected to the distribution bar. via a single terminal block and the power modules are connected to the distribution bar by contact between a connection of the power module and the bus bar of the distribution bar.
    [0007] The use of a distribution bar rather than an individual connector to carry the input power makes it possible to use larger currents for the power input relative to the powers allowed by individual connectors. In addition, the input power distribution bars being connected to several power modules, the number of wired connections is reduced and therefore the number of protections in the primary distribution box is greatly reduced. Indeed, it only takes one protection per distribution bar. The interface 6 of the primary distribution box further comprises a first output power distribution bar 10 extending over the first three 41 to 43 of the four high power housings 41 to 44 so as to connect up to three power modules inserted in the first three high power housings 41 to 43 to an electrical load or a secondary distribution box. In the illustrated embodiment, the first output power distribution bar 10 comprises a conductive bar 11 mounted on the inside of the main frame 3 and a terminal block 12 mounted on the outside of the main frame 3 and electrically coupled with the 11. The terminal block 12 is used to connect via a connection cable C a power input of the secondary distribution box 2 and thus to supply the secondary distribution box 2 with electrical energy.
    [0008] The use of an output power distribution bar to deliver output power to the secondary distribution box 3 allows the use of high power power modules while reducing the number of connectors in total and the number of protections electric necessary. The last two power housings 45 and 46 are dedicated to secondary powers lower than the powers delivered in the high power housings 41 to 44. In this embodiment, the primary distribution box 3 thus comprises a primary distribution part comprising the power receptacles 41 to 44 capable of receiving high power and a secondary distribution portion comprising the secondary power housing 45 and 46 adapted to receive lower power.
    [0009] The interface 6 also includes an internal power distribution bar 13 extending between the fourth high power housing 44 and the first secondary power housing 45. The internal power distribution bar 13 is intended to be coupled to an output of a power module inserted in the fourth high-power housing 44 and thus power from the power output of this power module a power module inserted in the first secondary power housing 45. The interface 6 further comprises a secondary power distribution bar 14 extending on the two secondary power housing 45 and 46 and on the control housing 5. The secondary power distribution bar 14 is electrically connected to the distribution bar 13. The electrical connection can be made via the power module inserted into the first housing of the secondary power 45 or via an electrical connection directly made between the two distribution bars 13 and 14 on the interface 6. The secondary power distribution bar 14 provides power to the control modules inserted in the control housing 5 and the power module inserted in the second secondary power housing 46. The interface 6 comprises an individual control output connector 15 mounted on the main frame 3 facing each control housing 5 so as to be connected in output of a control module inserted in one of the five control slots 5. The individual control output connectors 15 are intended to be connected to electrical loads to be controlled or distribution boxes.
    [0010] In another embodiment, the interface 6 may also comprise individual output power connectors each arranged in a power housing so as to be connectable to a power module for powering a load or an electrical distribution box. secondary. In this configuration, for the power slots 4 comprising both an output power distribution bar and an individual output power connector, the distribution box can be used regardless of the power module connection configuration to deliver the output power. The primary distribution box 1 further comprises, in the illustrated embodiment, two additional frames 16 fixed to the main frame 3. Each of the additional frames comprises a control housing 5.
    [0011] The control housing 5 of each of the two additional frames 16 comprises an individual input power connector 17 disposed on an outer face of the additional frame 16 and arranged so as to be connectable to a control module inserted in the control housing. 5 corresponding, the individual input connector 17 being adapted to receive a cable of the electrical harness. In another embodiment it is possible to replace or double the individual input power connector 17 with an input power distribution bar comprising a conductor bar and a terminal block adapted to be coupled to the cable of a harness electric. The control housing 5 of each of the two additional frames 16 further comprises an individual output control connector 15 disposed on an outer face of the additional frame 16 and arranged so as to be connectable to a control module inserted into the housing. corresponding 5 command. The individual control output connector 15 of the control housing 5 each additional chassis 16 is intended to be connected to electrical loads to be controlled or to distribution boxes. The interface 6 of the primary distribution box 1 comprises a control motherboard 18. In this embodiment, the control motherboard 18 is mounted on the outside of the housing and in particular on the outside of the main frame 3 and 16. In this manner, a single control motherboard 18 is used to connect both the control housing 5 of the main frame 3 and the control housing 5 of the two additional chassis 16 to an external control unit.
    [0012] The interface 6 is configured to couple the external control board 18 to a control connection board 20 mounted on the inside of the main frame 3 and for coupling the power modules and the control modules to the board ordering mother 18.
    [0013] The externality of the control motherboard 18 allows the primary distribution box 1 to have a standard main chassis 3 and to be able to choose the control motherboard 18 according to the number of command modules used on the main chassis 3 and on the additional frames 16 attached to the main frame 3. The control motherboard 18 includes an input power connector 19. The secondary distribution box 2 of the distribution system illustrated in this figure also comprises a main frame 23 and frames additional frames 36 fixed to the main frame 23, and an interface 26. Each additional frame 36 comprises, as for the primary distribution box 1, a control housing 25 each having an individual input power connector 37 and an individual connector of 35. The main frame 23 of the secondary distribution box 2 comprises a power portion comprising a power housing 24 and a control portion having a control housing 25. Mounted on the main frame 23, the interface 26 further comprises an input power distribution bar composed of a conductive bar 28 arranged on the inside of the main frame 23 and a terminal block 29 mounted on the outside of the main frame 23 and electrically coupled to the busbar 28. The terminal block 29 is electrically connected to the output power distribution bar 10 of the primary distribution box 1 which thus supplies the secondary distribution box 2 with electricity. The interface 26 of the secondary distribution box 2 further comprises an individual power output connector 30 arranged to face the power housing 24 of the secondary distribution box 2 and an output control connector 35 arranged in such a manner to be opposite the control housing 25 arranged in the main frame 23. The interface 26 of the secondary distribution box 2 also comprises a control motherboard 38 mounted on an outer face of the main frame 23 and two additional frames 36 of to be connected to the control housing 25 of the main frame 23 and additional chassis 36 and the power housing 24 of the main frame 23.
    [0014] The exemplary embodiment illustrated in this figure is not limiting, and any combination of characteristics described between the secondary distribution boxes 2 and primary 1 in particular does not depart from the scope of the invention.
    [0015] The invention thus proposes an electrical system comprising at least one distribution box optimizing in terms of weight, cost, use and maintenance, by using a distribution bar as a connection between the modules inserted into the box and the electrical elements. external to the distribution box.
    权利要求:
    Claims (9)
    [0001]
    REVENDICATIONS1. Electrical distribution box (1,
    [0002]
    2) comprising first housings (4, 24) for accommodating power modules and second housings (5, 25) for accommodating electronic control modules, and an interface (6, 26) for making the connections between the different modules and external electrical elements, characterized in that the interface (6, 26) comprises at least one input power distribution bar (7, 27) extending in at least one first housing (4, 24) so that it can be connected to at least one power module, an input distribution bar (7, 27) being adapted to be connected to a cable of an electrical harness so as to connect at least one power module to electrical harness. Housing (1) according to claim 1, characterized in that the interface (6) comprises at least one output power distribution bar (10) extending in at least one first housing (4) so as to can be connected to at least one power module for powering a load or an electrical distribution box.
    [0003]
    Housing according to claim 1, wherein the interface comprises at least one individual output power connector extending in a so that it can be connected to a power module for powering a load or an electrical distribution box.
    [0004]
    4. Housing (1, 2) according to one of claims 1 to 3, characterized in that it comprises at least one individual input power connector (17, 37) extending in a first housing (4, 24) so that it can be connected to a power module, the individual input connector (17, 37) being adapted to receive a cable of an electrical harness.
    [0005]
    The housing of claim 4, wherein each first housing comprising both an individual input power connector and an input power distribution bar comprises an electrical connection between said input power distribution bar and said input power distribution bar. individual input power connector.
    [0006]
    6. Housing (1, 2) according to one of claims 1 to 5, characterized in that it comprises a control motherboard (18, 38) and a main frame (3, 23) comprising said first and second housing (4 or 24, 5 or 25), the motherboard (18, 38) being mounted on the outside of the main frame (3, 23) and able to be connected to at least a first or second housing (4 or 24, 5 or 25).
    [0007]
    The housing (1, 2) of claim 6, wherein the control motherboard (18, 38) comprises an input power connector (19).
    [0008]
    8. Housing (1, 2) according to one of claims 5 to 7, characterized in that it comprises at least one additional frame (16, 36) adapted to be fixed to said main frame (3, 23), the frame further (16, 36) having at least a first housing (4, 24) and / or at least a second housing (5, 25), and the control motherboard (18, 38) being further mounted on the outside the additional chassis (16, 36) is also connected to at least a first housing (4, 24) and / or a second housing (5, 25) of the additional chassis (16, 36).
    [0009]
    9. Electrical distribution system comprising at least one electrical distribution box (1, 2) according to one of claims 1 to 8.
    类似技术:
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    同族专利:
    公开号 | 公开日
    EP3108725A1|2016-12-28|
    US20170181310A1|2017-06-22|
    US10383246B2|2019-08-13|
    EP3108725B1|2020-07-01|
    FR3018004B1|2017-11-24|
    WO2015124722A1|2015-08-27|
    引用文献:
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    法律状态:
    2015-12-02| PLFP| Fee payment|Year of fee payment: 3 |
    2016-11-23| PLFP| Fee payment|Year of fee payment: 4 |
    2017-11-16| PLFP| Fee payment|Year of fee payment: 5 |
    2020-01-22| PLFP| Fee payment|Year of fee payment: 7 |
    2021-01-20| PLFP| Fee payment|Year of fee payment: 8 |
    2021-04-30| TP| Transmission of property|Owner name: SAFRAN ELECTRICAL & POWER, FR Effective date: 20210326 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1451394A|FR3018004B1|2014-02-21|2014-02-21|ELECTRICAL DISTRIBUTION UNIT COMPRISING AN INPUT POWER DISTRIBUTION BAR|FR1451394A| FR3018004B1|2014-02-21|2014-02-21|ELECTRICAL DISTRIBUTION UNIT COMPRISING AN INPUT POWER DISTRIBUTION BAR|
    PCT/EP2015/053609| WO2015124722A1|2014-02-21|2015-02-20|Electrical distribution box comprising an input power busbar|
    EP15705822.3A| EP3108725B1|2014-02-21|2015-02-20|Electrical distribution box comprising an input power busbar|
    US15/240,934| US10383246B2|2014-02-21|2016-08-18|Electrical distribution box comprising an input power busbar|
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