• 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 present invention relates to a traction box (10) of a railway vehicle, comprising: electrical equipment (16, 17, 18); and a cooling device (20), comprising: a first and a second fluid circuit, respectively passing through a first (38,39) and a second (40) heat exchange zone with said electrical equipment; and a first (34) and a second (36) heat exchanger, respectively traversed by said first (54) and said second (60) fluid circuits and allowing a heat exchange between said fluid and a first air stream (32). ). The fluid circuits comprise a first common fluid flow conduit (70, 71, 54) passing through the first heat exchanger (34), then connected to a second (60) and a third (62) parallel duct, the second duct ( 60) belonging to the second fluid circuit and first passing through the second heat exchanger (36) and then the second heat exchange zone (40).
    公开号:FR3048640A1
    申请号:FR1652083
    申请日:2016-03-11
    公开日:2017-09-15
    发明作者:Christophe Audemar
    申请人:Alstom Transport Technologies SAS；
    IPC主号:
    专利说明:

    Trunk box of a railway vehicle with cooling system, method of implementation and associated railway vehicle
    The present invention relates to a trunk of a railway vehicle, comprising first and second electrical equipment, and a cooling device, able to evacuate the heat dissipated by said first and second electrical equipment, the cooling device comprising: a first and second fluid circuits, respectively passing through a heat exchange zone with the first and second electrical equipment, each of the first and second fluid circuits forming a closed loop; and a first and a second heat exchanger, respectively traversed by said first and second fluid circuits and allowing a heat exchange between said fluid and a first air stream. The invention applies to the field of rail transport, including electric traction vehicles, such as locomotives and railcars.
    For the purposes of the present invention, the term "traction box" means the part of a traction vehicle which is intended to control the traction motors of said vehicle.
    The cooling device is typically intended to cool a part of the electrical equipment such as a power module or a transformer, to prevent overheating of said electrical equipment.
    For trunks of high power, it is difficult to cool sufficiently ambient electrical equipment using chillers such as air / air type heat exchangers. Indeed, in addition to the significant heat dissipated by said equipment, the trunking boxes are usually installed in a technical room, whose ambient temperature is increased by the presence of other electrical devices.
    It is particularly known from document US2007 / 0051490 to cool electrical equipment using refrigerant circuits, said refrigerant being itself cooled by an outside air flow.
    In particular, the document US2007 / 0051490 implements two separate refrigerant circuits, to promote the cooling of some electrical equipment relative to others.
    The object of the present invention is to propose a simple traction box to be made, while allowing the cooling of certain electrical equipment of said box to be regulated as a priority. To this end, the subject of the invention is a traction box of the aforementioned type, in which: the first and second fluid circuits comprise a first common fluid circulation duct passing through the first heat exchanger; and at the outlet of said first heat exchanger, said first duct is connected to a second and a third parallel fluid circulation ducts, said second duct belonging to the second fluid circuit, said second duct passing first through the second heat exchanger and then the heat exchange zone with the second electrical equipment.
    According to other advantageous aspects of the invention, the trunk comprises one or more of the following characteristics, taken separately or in any technically possible combination: the cooling device further comprises a regulating device of a fluid flow in the second and / or third parallel ducts; the regulating device and the second and third conduits are configured for a lower flow rate in the second conduit than in the third conduit; - The heat exchange zone with the first electrical equipment is disposed on the first common fluid flow conduit; - The heat exchange zone with the first electrical equipment is formed of at least two heat exchange units, arranged in parallel on the first fluid circuit; - The trunk comprises a first fan capable of generating the first air flow, said first air flow through the first and second heat exchangers; - The trunk is configured so that the first and second heat exchangers are arranged in parallel in the first air flow; - The trunk comprises a closed compartment in which are located the first and second electrical equipment, said closed compartment being isolated from the first air flow; - The cooling device comprises a second fan adapted to generate a second air flow towards the second electrical equipment, the heat exchange zone with the second electrical equipment comprising a third heat exchanger disposed between the second fan and the second electrical equipment, said third heat exchanger thus being able to cool the second air flow upstream of said second electrical equipment. The invention further relates to a method of implementing a traction box as described above, comprising the following steps: a heat transfer fluid. circulating in the first common conduit, passes through the first heat exchanger, a temperature of said heat transfer fluid then decreasing by heat exchange with the first air flow to a first output value of said first heat exchanger; then a first portion and a second portion of said heat transfer fluid circulate respectively in the second and third parallel conduits, the first portion of heat transfer fluid passing through the second heat exchanger, a temperature of said heat transfer fluid then decreasing by heat exchange with the first flow of heat transfer fluid; air to a second value, said first portion of heat transfer fluid then passing through the heat exchange zone with the second electrical equipment; and the heat transfer fluid, or the second part of the heat transfer fluid, at a temperature greater than the second value, passes through the heat exchange zone with the first electrical equipment. The invention also relates to a railway vehicle comprising at least one traction motor controlled by a traction box as described above. The invention will be better understood on reading the description which follows, given solely by way of nonlimiting example and with reference to the drawings, in which: FIG. 1 is a schematic view of a traction box according to an embodiment of the invention; and FIG. 2 is a schematic view of an electronic control module of the traction box of FIG. 1.
    Figure 1 shows a schematic front view of a trunk 10 of a railway vehicle, according to one embodiment of the invention.
    The trunk 10 comprises a closed compartment 12 and a ventilation column 14. The trunk 10 also comprises first electrical equipment 16, 17 and a second electrical equipment 18, arranged in the closed compartment 12.
    The trunk 10 further comprises a cooling device 20, able to evacuate dissipated heat, in particular in the closed compartment 12, by said first 16, 17 and second 18 electrical equipment.
    The cooling device 20 is arranged in the closed compartment 12 and in the ventilation column 14.
    The closed compartment 12 is defined by an envelope 22, shown in dashed lines in FIG. 1. Preferably, the envelope 22 is airtight. Thus, the air present inside said envelope 22 is confined in the closed compartment 12.
    The second electrical equipment 18 preferably comprises elements whose maintenance at an appropriate temperature is essential to the operation of the trunk 10. In the embodiment shown in FIG. 1, the second electrical equipment 18 is an engine control unit. traction of the railway vehicle.
    The first electrical equipment 16, 17 preferably comprise elements whose maintenance at an appropriate temperature is less priority for the operation of the traction box 10 than that of the second electrical equipment 18. The first electrical equipment 16, 17 comprise, for example, circuits processing an electric current from a source of electrical energy external to the railway vehicle, such as a catenary.
    The ventilation column 14 comprises a ventilation duct 24 which passes through the trunk 10, for example vertically. The duct 24 has an air inlet 26 and an air outlet 28, said inlet and outlet opening to the outside of the trunk 10.
    The ventilation column 14 further comprises a first fan 30, able to generate an outside air flow 32 between the inlet 26 and the outlet 28 of the ventilation duct 24.
    The cooling device 20 comprises a first heat exchanger 34 and a second heat exchanger 36, arranged in the ventilation duct 24. The first 34 and second 36 heat exchangers are air / fluid type, preferably air / liquid. For example, the first 34 and second 36 heat exchangers are finned radiators or heat exchangers of the plate and bar type.
    Preferably, a power of the first heat exchanger 34 is significantly greater than a power of the second heat exchanger 36. In particular, a heat exchange surface of the first heat exchanger 34 is significantly greater than a heat exchange surface of the second heat exchanger 36. For example, a ratio of heat exchange surfaces between the second 36 and the first 34 heat exchangers is between 5% and 10%.
    Preferably, the first 34 and second 36 heat exchangers are arranged in parallel in the ventilation duct 24. Thus, the outside air flow 32 comprises two parts each of which passes through only one of said first 34 and second 36 exchangers. Said first 34 and second 36 exchangers are preferably made in a single piece and arranged for example horizontally, side by side, in the duct 24.
    The cooling device 20 further comprises third heat exchangers 38, 39, able to dissipate heat generated by the first electrical equipment 16, 17. Said third heat exchangers are disposed in the closed compartment 12. As described below, each of the third heat exchangers 38, 39 is able to be traversed by a coolant circuit.
    Each of the third heat exchangers 38, 39 is for example a radiator or water-plate type cooler, in thermal contact with one of the first electrical equipment 16, 17, so as to dissipate by conduction in the water circuit the heat emitted by said electrical equipment.
    The third heat exchangers 38, 39 define a heat exchange zone with the first electrical equipment 16, 17.
    In the embodiment shown in FIG. 1, the trunk 10 comprises several third heat exchangers 38, 39. As a variant, not shown, the trunk 10 comprises a single third heat exchanger, fitted to one of the first electrical equipment 16, 17.
    The cooling device 20 further comprises a fourth heat exchanger 40 disposed in the closed compartment 12. Said fourth heat exchanger 40 is able to be traversed by a coolant circuit.
    The fourth heat exchanger 40 is able to dissipate the heat generated by the second electrical equipment 18. Said fourth heat exchanger 40 furthermore makes it possible to cool the ambient of the trunk 10 by transferring calories from the ambient air to the circuit. water.
    The fourth heat exchanger 40 defines a heat exchange zone with the second electrical equipment 18.
    In the embodiment shown in FIG. 1, the fourth heat exchanger 40 is of air / fluid type, preferably air / liquid. In variant not shown, the fourth heat exchanger 40 is a radiator in thermal contact with the second electrical equipment 18.
    In the embodiment shown in Figure 1, the cooling device 20 further comprises a second fan 42 disposed in the closed compartment 12. The second fan 42 is adapted to generate an interior air flow 44 between the fourth exchanger thermal 40 and the second electrical equipment 18.
    In variant not shown, the box 10 comprises several fourth heat exchangers, equipping several second electrical equipment as defined above.
    The cooling device 20 further comprises a heat transfer fluid circuit 50. The circuit 50 is a closed circuit, internal to the trunk 10. The circuit 50 is able to circulate a heat transfer fluid between the closed compartment 12 and the ventilation column 14.
    The circuit 50 comprises in particular a circulation pump 52, able to set in motion the heat transfer fluid in a direction of circulation. The heat transfer fluid is preferably a liquid, for example water mixed with an additive such as ethylene glycol.
    The circuit 50 comprises a first fluid duct 54 defined between an inlet 56 and an outlet 58. The first heat exchanger 34 is disposed on the first duct 54. In the embodiment of FIG. 1, the circulation pump 52 is also disposed on the first conduit 54.
    At the output 58, the circuit 50 is subdivided into a second 60 and a third 62 conduits arranged in parallel. Said second 60 and third 62 ducts meet at a collection point 64.
    The second conduit 60 passes successively through the second heat exchanger 36, located in the ventilation column 14, then through the fourth heat exchanger 40, located in the closed compartment 12, before reaching the collection point 64.
    The circuit 50 comprises a device 66 for regulating a coolant flow rate ratio between the second 60 and the third 62 ducts. Preferably, the control device 66 and the second 60 and third 62 ducts are configured for a lower flow rate in the second duct 60 than in the third duct 62.
    In the embodiment shown in FIG. 1, the regulation device 66 is a diaphragm-type device located on the second duct 60. The diaphragm 66 imposes a fixed ratio of coolant flow rates between the second 60 and the third 62 ducts. .
    According to a variant not shown, the control device 66 is a three-way valve device, located at the outlet 58 of the first fluid conduit 54, to vary the flow rate ratio.
    Preferably, the circuit 50 further comprises one or more probes 68 of coolant temperature. The at least one probe is for example situated on the second conduit 60, upstream and / or downstream of the fourth heat exchanger 40. Preferably, the probe is positioned immediately downstream of the collection point 64, to control the inlet temperature of the heat exchangers. third heat exchangers 38, 39. In the embodiment of Figure 1, between the collection point 64 and the inlet 56 of the first conduit 54, the circuit 50 has a plurality of branches 70, 71 arranged in parallel. Each of the parallel branches 70, 71 passes through one of the third heat exchangers 38, 39 associated with the first electrical equipment 16, 17.
    According to a variant not shown, the parallel branches 70, 71, passing through the third heat exchangers 38, 39 form part of the third conduit 62 upstream of the collection point 64.
    According to another variant not shown, the third heat exchangers 38, 39, or some of said third heat exchangers 38, 39, are arranged in series on the circuit 50.
    According to one embodiment of the invention, the box 10 of FIG. 1 further comprises an electronic regulation module 80, schematically represented in FIG. 2. According to said embodiment, the regulation device 66 is of the solenoid valve type, able to vary the flow rate between the second 60 and the third 62 ducts.
    The electronic module 80 comprises in particular a microprocessor 82, a program memory 84 and at least one communication bus 86. Via an interface 88, the module 80 is connected to the temperature sensor (s) 68, to the regulation device 66 and possibly to the circulation pump 52 and / or to the first 30 and / or the second 42 fans.
    A program 90 is stored in the memory 84. The program 90 is particularly suitable for adjusting the heat transfer fluid flow rate regulator device 66 in the second duct 60, as a function of a temperature, or a temperature difference, measured by the probe or probes 68. Optionally, the program 90 is also able to control an operation of the circulation pump 52, and / or to adjust a rotation speed of the first 30 and / or the second 42 fans.
    According to another embodiment of the invention, the trunk 10 of FIG. 1 does not comprise control electronics, in particular in the case where the regulating device 66 is a fixed device of the diaphragm type.
    A method of operating the trunk 10 will now be described. The operation of the first 16, 17 and second 18 electrical equipment leads to an increase in temperature of said electrical equipment, reinforced by their confinement in the closed compartment 12.
    In order to avoid overheating of said electrical equipment, the outside air flow 32 generated by the first fan 30 cools the heat transfer fluid which passes through the first heat exchanger 34. It is considered that at the outlet 58 of said first heat exchanger 34, the fluid coolant is at a first temperature Ti. Said first temperature Ti is here greater than a temperature of the outside air flow 32 at the inlet 26 of the air duct 24.
    Downstream of the outlet 58, the coolant is distributed between the second 60 and third 62 ducts, by the regulator 66. The fluid flowing in the second duct 60 passes through the second heat exchanger 36. Preferably, the flow of fluid passing through the second exchanger 36 is significantly lower than the flow rate of fluid passing through the first exchanger 34; a ratio of the fluid flow rates between the second 36 and the first 34 heat exchangers is in particular between 3% and 10%. For example, the flow rate in the second duct 60 is 10 l / min and the flow rate in the third duct 62 is 210 l / min.
    In a manner favored by this low flow rate, the temperature of the coolant at the outlet of the second heat exchanger 36 reaches a value Tg lower than Ti.
    The coolant circulating in the second conduit 60 then passes through the fourth heat exchanger 40 and cools the inner air flow 44 before said air flow comes into contact with the second electrical equipment 18. Said internal air flow 44 , thus cooled, is more effective for convection cooling said second electrical equipment 18.
    The coolant of the second conduit 60, at the lowest temperature Tg, is used to cool the electrical equipment 18 considered a priority in the trunk 10.
    Downstream of the fourth heat exchanger 40, the coolant of the second 60 and third 62 ducts is collected at the collection point 64. Said fluid then passes through the third heat exchangers 38, 39 to cool the first electrical equipment 16, 17 considered less priority. At the input of said third heat exchangers 38, 39, the temperature of the coolant is in particular greater than T2.
    At the outlet of the third heat exchangers 38, 39, the coolant is collected at the inlet 56 of the first duct 54, to join the first heat exchanger 34.
    Optionally, the interior of the closed compartment 12 is configured so that the interior air flow 44 circulates around the first electrical equipment 16, 17 after having cooled the second electrical equipment 18. The interior air flow 44 contributes thereby cooling by convection said first electrical equipment 16, 17.
    According to one embodiment of the invention, the operating method described above is implemented by the program 90 of the electronic module 80 described above. Optionally, as a function of the temperature or temperatures measured by the temperature sensor (s) 68, the program 90 modifies in real time the regulation device 66, and / or the flow rate of the pump 52, and / or the speed of the first 30 and / or the second 42 fans.
    The trunk 10 as described above can be made by adaptations easy to implement on existing trunking boxes, comprising a closed compartment 12 and a ventilation column 14. For example, the first 34 and second 36 Heat exchangers can be made in one piece, which facilitates their installation in the ventilation duct 24.
    权利要求:
    Claims (10)
    [1" id="c-fr-0001]
    1. - Traction box (10) of a railway vehicle, comprising: - first (16, 17) and second (18) electrical equipment, and - a cooling device (20), able to evacuate heat dissipated by said first and second electrical equipment, the cooling device comprising: - a first (54, 62, 70, 71) and a second (54, 60, 70, 71) fluid circuits, passing respectively through a heat exchange zone with the first (38, 39) and with the second (40) electrical equipment, each of the first and second fluid circuits forming a closed loop; and - a first (34) and a second (36) heat exchanger, respectively traversed by said first (54) and said second (60) fluid circuits and allowing a heat exchange between said fluid and a first air flow ( 32), the trunk box being characterized in that: - the first and second fluid circuits comprise a first common fluid flow duct (70, 71, 54) passing through the first heat exchanger (34); and at the outlet (58) of said first heat exchanger, said first duct is connected to a second (60) and a third (62) parallel fluid circulation duct, said second duct (60) belonging to the second fluid circuit, said second conduit first passing through the second heat exchanger (36) and then the heat exchange zone (40) with the second electrical equipment (18).
    [2" id="c-fr-0002]
    2. - Traction trough according to claim 1, wherein the cooling device (20) further comprises a device (66) for regulating a flow of fluid in the second (60) and / or third (62) ducts parallel.
    [3" id="c-fr-0003]
    3. - trunk according to claim 2, wherein the regulating device (66) and the second (60) and third (62) conduits are configured for a lower flow rate in the second conduit (60) than in the third led (62).
    [4" id="c-fr-0004]
    4. - Traction box according to one of the preceding claims, wherein the heat exchange zone (38, 39) with the first electrical equipment is disposed on the first common conduit (70, 71) of fluid circulation.
    [5" id="c-fr-0005]
    5. - Traction box according to one of the preceding claims, wherein the heat exchange zone with the first electrical equipment is formed of at least two heat exchange units (38, 39), arranged in parallel (70). , 71) on the first fluid circuit.
    [6" id="c-fr-0006]
    6. - Traction box according to one of the preceding claims, comprising a first fan (30) adapted to generate the first air flow (32), said first air flow through the first (34) and second (36). ) heat exchangers.
    [7" id="c-fr-0007]
    7. - trunk according to claim 6, configured so that the first (34) and second (36) heat exchangers are arranged in parallel in the first air flow (32).
    [8" id="c-fr-0008]
    8. - trunk according to claim 6 or claim 7, comprising a closed compartment (12) in which are located first (16, 17) and second (18) electrical equipment, said closed compartment being isolated from the first flow of air (32).
    [9" id="c-fr-0009]
    9. - Traction box according to one of the preceding claims, wherein the cooling device comprises a second fan (42) adapted to generate a second air flow (44) towards the second electrical equipment (18), the heat exchange zone with the second electrical equipment comprising a third heat exchanger (40) disposed between the second fan and the second electrical equipment (18), said third heat exchanger thus being able to cool the second air flow upstream of said second electrical equipment.
    [10" id="c-fr-0010]
    10. - Method for implementing a traction box (10) according to one of the preceding claims, comprising the following steps: - a coolant flowing in the first common conduit (54) through the first heat exchanger ( 34), a temperature of said heat transfer fluid then decreasing by heat exchange with the first air stream (32) to a first value (Ti) at the outlet (58) of said first heat exchanger; then - a first portion and a second portion of said heat transfer fluid circulate respectively in the second (60) and the third (62) parallel conduits, the first portion of heat transfer fluid passing through the second heat exchanger (36), a temperature of said heat transfer fluid then decreasing by heat exchange with the first air flow (32) to a second value (T2), said first heat transfer fluid part then passing through the heat exchange zone (40) with the second electrical equipment (18) ; and the heat transfer fluid, or the second portion of the heat transfer fluid, at a temperature greater than the second value (T2), passes through the zone (38, 39) of heat exchange with the first electrical equipment (16, 17). 11A railway vehicle having at least one traction motor driven by a traction box (10) according to any one of claims 1 to 9.
    类似技术:
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    同族专利:
    公开号 | 公开日
    EP3217776B1|2019-05-08|
    RU2725018C2|2020-06-29|
    PL3217776T3|2020-08-10|
    US20170259834A1|2017-09-14|
    CN107182186A|2017-09-19|
    EP3217776A1|2017-09-13|
    FR3048640B1|2018-04-06|
    RU2017107753A3|2020-05-18|
    US10414412B2|2019-09-17|
    RU2017107753A|2018-09-11|
    CN107182186B|2020-06-19|
    引用文献:
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    JP2013071482A|2011-09-26|2013-04-22|Toshiba Corp|Liquid-cooled electric power conversion device|
    RU127345U1|2012-06-05|2013-04-27|Общество с ограниченной ответственностью "Центр инновационного развития СТМ" |MICROPROCESSOR CONTROL AND DIAGNOSTIC SYSTEM OF A LOCOMOTIVE LOCOMOTIVE WITH A HYBRID DRIVE|
    US10254021B2|2013-10-21|2019-04-09|Inertech Ip Llc|Cooling systems and methods using two cooling circuits|FR3074599B1|2017-12-05|2019-12-20|Alstom Transport Technologies|RAIL TRACTION BLOCK TEST SYSTEM|
    FR3100489B1|2019-09-10|2021-09-24|Alstom Transp Tech|Electric power module|
    法律状态:
    2017-03-22| PLFP| Fee payment|Year of fee payment: 2 |
    2017-09-15| PLSC| Publication of the preliminary search report|Effective date: 20170915 |
    2018-03-23| PLFP| Fee payment|Year of fee payment: 3 |
    2020-03-19| PLFP| Fee payment|Year of fee payment: 5 |
    2021-12-10| ST| Notification of lapse|Effective date: 20211105 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1652083A|FR3048640B1|2016-03-11|2016-03-11|TRACTION BOX OF A RAILWAY VEHICLE WITH COOLING SYSTEM, METHOD OF IMPLEMENTATION AND RAILWAY VEHICLE THEREFOR|
    FR1652083|2016-03-11|FR1652083A| FR3048640B1|2016-03-11|2016-03-11|TRACTION BOX OF A RAILWAY VEHICLE WITH COOLING SYSTEM, METHOD OF IMPLEMENTATION AND RAILWAY VEHICLE THEREFOR|
    RU2017107753A| RU2725018C2|2016-03-11|2017-03-09|Traction module of railway vehicle with cooling device, method of operation of such module and railway vehicle|
    CN201710144252.5A| CN107182186B|2016-03-11|2017-03-10|Railway vehicle traction box with cooling system, application method and railway vehicle|
    US15/455,494| US10414412B2|2016-03-11|2017-03-10|Traction box of a railway vehicle with a cooling system, associated application method and railway vehicle|
    PL17160618T| PL3217776T3|2016-03-11|2017-03-13|Traction box of a railway vehicle with cooling system, method for its implementation and railway vehicle therefor|
    EP17160618.9A| EP3217776B1|2016-03-11|2017-03-13|Traction box of a railway vehicle with cooling system, method for its implementation and railway vehicle therefor|
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