CN1923558B - Liquid cooling type power convertor for railway vehicle - Google Patents

Liquid cooling type power convertor for railway vehicle Download PDF

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Publication number
CN1923558B
CN1923558B CN2006101266811A CN200610126681A CN1923558B CN 1923558 B CN1923558 B CN 1923558B CN 2006101266811 A CN2006101266811 A CN 2006101266811A CN 200610126681 A CN200610126681 A CN 200610126681A CN 1923558 B CN1923558 B CN 1923558B
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China
Prior art keywords
exch
railway vehicle
blowing engine
liquid cooling
power supply
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CN2006101266811A
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Chinese (zh)
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CN1923558A (en
Inventor
桥本隆
井手勇治
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Toshiba Corp
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Toshiba Corp
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61CLOCOMOTIVES; MOTOR RAILCARS
    • B61C17/00Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
    • B61C17/04Arrangement or disposition of driving cabins, footplates or engine rooms; Ventilation thereof

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)

Abstract

To provide a liquid-cooled type electric power converting device for a railroad car capable of cooling properly the power supply for driving the car and an auxiliary power supply and assuring calmness when the car is stopped. The liquid-cooled type electric power converting device for the railroad car is equipped with the power supply for driving the railroad car, the auxiliary power supply, a pump connected with the power supply for driving the car and the auxiliary power supply through piping for sending the cooling liquid to the power supply for driving the car and the auxiliary power supply, a heat exchanger connected with the power supply for driving the car and the auxiliary power supply through piping for performing the heat exchange of the cooling liquid discharged from the power supply for driving the car and the auxiliary power supply, a first blower for sending the wind to the heat exchanger, and a second blower having a smaller wind sending ability than the first blower and nevertheless able to send the wind to the heat exchanger, wherein the first blower is stopped when the railroad car is stopped and only the second blower is operated.

Description

Liquid cooling type power convertor for railway vehicle
Technical field
The present invention relates to liquid cooling type power convertor for railway vehicle.
Background technology
Specifically describe existing liquid cooling type power convertor for railway vehicle with reference to the accompanying drawings.Fig. 7 is the pie graph of existing liquid cooling type power convertor for railway vehicle.In Fig. 7, be illustrated in the cooling tubing system diagram that is respectively equipped with a liquid cooling radiating gill 2,2a in the circulating system, the situation of a plurality of these liquid cooling radiating gills 2 that are connected in series respectively, 2a or a plurality of liquid cooling radiating gill 2 in parallel, 2a is more.Owing in explanation of the present invention, do not have difference, so, below describe with the figure of the situation that is respectively equipped with a liquid cooling radiating gill 2,2a.In addition, in Fig. 7, the refrigerant fluid vehicular drive that flows in parallel still, also can be to make refrigerant fluid flow into the structure that is connected in series of accessory feed 21 again after the cooling vehicular drive is with power supply 20 with power supply 20 and accessory feed 21.
Existing liquid cooling type power convertor for railway vehicle has: to the vehicular drive power supply 20 of supply capabilities such as electrical motor, accessory feed 21 to room light and air-conditioning supply capability, carry the pump 3 of refrigerant fluid with power supply 20 and accessory feed 21 to vehicular drive, connect the pipe arrangement 4 between pump 3 and vehicular drive power supply 20, the accessory feed 21, be located at the H Exch 5 in the air channel 7, be located in the air channel equally, the blowing engine 6 of heat exchanger 5 forced conveyance air.
In existing liquid cooling type power convertor for railway vehicle, pump 3 is connected with the refrigerant fluid inlet of vehicular drive with power supply 20 by pipe arrangement 4.The refrigerant fluid inlet of accessory feed 21 is in parallel with power supply 20 with vehicular drive, is connected with pump 3 by pipe arrangement 4.Vehicular drive is with the cooling liquid outlet of power supply 20 and accessory feed 21, and entering the mouth with the refrigerant fluid of the H Exch 5 that is located at the air channel 7 that is used for making wind flow by pipe arrangement 4 is connected.The cooling liquid outlet of H Exch 5 is connected with pump 3.Blowing engine 6 is located at than H Exch 5 and more leans in the air channel 7 of air intake vent (inlet) 8 sides, and H Exch 5 is located at discharge orifice (outlet) side in air channel 7.
In the liquid cooling type power convertor for railway vehicle that constitutes like this,, flow through pipe arrangement 4, shunt with power supply 20 sides and accessory feed 21 sides to vehicular drive by the refrigerant fluid that pump 3 is discharged.Flow into vehicular drive and use the refrigerant fluid of power supply 20 to cool off vehicular drive, use the cooling liquid outlet of power supply 20 to flow into pipe arrangement 4 from vehicular drive with behind the power supply 20.After flowing into the refrigerant fluid cooling accessory feed 21 of accessory feed 21, from the cooling liquid outlet inflow pipe arrangement 4 of accessory feed 21.From the refrigerant fluid of accessory feed 21 inflow pipe arrangements 4, with the refrigerant fluid interflow, the inflow heat exchanger 5 that flow into pipe arrangements 4 from vehicular drive with power supply 20.The refrigerant fluid of inflow heat exchanger 5 in the pipe arrangement of H Exch 5 of flowing through during, by the air cooling of sending to through blowing engine 6, the pipe arrangement 4 of flowing through returns pump 3.
The liquid cooling type power convertor for railway vehicle of Gou Chenging like this is because vehicular drive is with the sharing of the cooling system of power supply 20 and accessory feed 21, so an available pump 3 cooling vehicular drives are with power supply 20 and accessory feeds 21.
Below, the structure of vehicular drive with power supply 20 and accessory feed 21 described.Vehicular drive has with power supply 20: the semiconductor element 1 that can carry out switch motion; Be connected with this semiconductor element 1, there is the liquid cooling radiating gill 2 of the stream of coolant flow inside.Accessory feed 21 has: but the semiconductor element 1a of switch (ス イ Star チ Application ゲ); 1a is connected with this semiconductor element, and there is the liquid cooling radiating gill 2a of the stream of coolant flow inside.
With in the power supply 20, the over-all heat transfer liquid cooling radiating gill 2 that produces from semiconductor element 1 passes to the refrigerant fluid that flows in liquid cooling radiating gill 2 at the vehicular drive that constitutes like this.Semiconductor element 1 is because can be by liquid cooling radiating gill 2 to cooled heat transfer fluid, so can be controlled at component temperature in the specified value.
Prior art: TOHKEMY 2000-203420 communique
Yet, existing liquid cooling type power convertor for railway vehicle there is quiet requirement, the noise that produces when especially vehicle being stopped is strict.When vehicle stops, owing to do not produce because of being traveling in the mechanical sounds that vehicle periphery sends, so the such noise of electric blower becomes problem.
For addressing these problems, considered the method for the machine that when vehicle stops, turning off the blast 6, even but this moment, accessory feed 21 also will drive cooling in stopping, so in the existing liquid cooling type power convertor for railway vehicle of vehicular drive, can not adopt this method with the common cooling system of power supply 20 and accessory feed 21 uses.
As another solution, so considered when vehicle stops owing to only needing the cooling of accessory feed 21 can take to reduce the schemes such as rotating speed of electric blower 6, but control the electric control loop of blowing engine 6 rotating speeds this moment and become complicated, cause the increase of number of components and kind, reliability is reduced, so can not adopt this method.
Summary of the invention
The purpose of this invention is to provide and suitably to cool off vehicular drive respectively with power supply and accessory feed and when vehicle stops, can realizing the liquid cooling type power convertor for railway vehicle of quietization.
Liquid cooling type power convertor for railway vehicle of the present invention has: the vehicular drive power supply; Accessory feed; Pump is connected with described accessory feed with power supply with described vehicular drive by pipe arrangement, and carries refrigerant fluid to described vehicular drive with power supply and described accessory feed; H Exch is connected with described accessory feed with power supply with described vehicular drive by pipe arrangement, and the refrigerant fluid of discharging with power supply and described accessory feed from described vehicular drive is carried out interchange of heat; Cool off first blowing engine of described H Exch; Littler and be used to cool off second blowing engine of described H Exch than the described first blowing engine draft capacity; When railway vehicle stops, described first blowing engine is stopped, only making described second blowing engine action.
In liquid cooling type power convertor for railway vehicle of the present invention, described first blowing engine and described second blowing engine are located in the same air channel, are arranged in series.
In liquid cooling type power convertor for railway vehicle of the present invention, described H Exch and described first blowing engine and described second blowing engine are located in the same air channel, and described first blowing engine and described second blowing engine are arranged in series.
In liquid cooling type power convertor for railway vehicle of the present invention, described first blowing engine and described H Exch are located in the same air channel, and described second blowing engine is located at the inlet outside in described air channel or the outlet outside in described air channel.
In liquid cooling type power convertor for railway vehicle of the present invention, described first blowing engine is arranged in the air trunk, and described second blowing engine is arranged in the secondary air channel, and the outlet in secondary air channel is connected with air trunk.
Liquid cooling type power convertor for railway vehicle of the present invention has: the vehicular drive power supply; Accessory feed; Pump is connected with described accessory feed with power supply with described vehicular drive by pipe arrangement, and carries refrigerant fluid to described vehicular drive with power supply and described accessory feed; H Exch is connected with described accessory feed with power supply with described vehicular drive by pipe arrangement, and the refrigerant fluid of discharging with power supply and described accessory feed from described vehicular drive is carried out interchange of heat; Cool off first blowing engine of described H Exch; When vehicle stops, described first blowing engine is stopped, described H Exch is by cooling off towards the top flow air from this railway vehicle below.
In liquid cooling type power convertor for railway vehicle of the present invention, described H Exch has first H Exch, and is connected with described first H Exch and than the second little H Exch of the described first H Exch heat-exchange capacity; First blower cools, first H Exch; When railway vehicle stops, described first blowing engine is stopped.
In liquid cooling type power convertor for railway vehicle of the present invention, described H Exch has first H Exch, and is connected with described first H Exch and than the second little H Exch of the described first H Exch heat-exchange capacity; Described first H Exch of described first blower cools, described second H Exch of described second blower cools; When railway vehicle stops, described first blowing engine is stopped, making described second blowing engine operation.
In liquid cooling type power convertor for railway vehicle of the present invention, described first H Exch and described first blowing engine are arranged in the same air channel, and described second H Exch is located at outside this air channel.
In liquid cooling type power convertor for railway vehicle of the present invention, described second H Exch is located under the floor of railway vehicle.
In liquid cooling type power convertor for railway vehicle of the present invention, described first H Exch and described first blowing engine are arranged in the same air channel, and described second H Exch is with in described second blowing engine is located at another identical air channel.
According to the present invention, can provide vehicular drive is carried out suitable cooling respectively with power supply and accessory feed and can realize the liquid cooling type power convertor for railway vehicle of quietization when vehicle stops.
Description of drawings
Fig. 1 is based on the pie graph of the liquid cooling type power convertor for railway vehicle of first embodiment of the present invention;
Fig. 2 is based on the pie graph of the liquid cooling type power convertor for railway vehicle of second embodiment of the present invention;
Fig. 3 is based on the pie graph of the liquid cooling type power convertor for railway vehicle of the 3rd embodiment of the present invention;
Fig. 4 is based on the pie graph of the liquid cooling type power convertor for railway vehicle of the 4th embodiment of the present invention;
Fig. 5 is based on the pie graph of the liquid cooling type power convertor for railway vehicle of the 5th embodiment of the present invention;
Fig. 6 is based on the pie graph of the liquid cooling type power convertor for railway vehicle of the 6th embodiment of the present invention;
Fig. 7 is the pie graph of existing liquid cooling type power convertor for railway vehicle.
The specific embodiment
First embodiment
Explain liquid cooling type power convertor for railway vehicle with reference to accompanying drawing based on first embodiment of the present invention.Fig. 1 is based on the pie graph of the liquid cooling type power convertor for railway vehicle of first embodiment of the present invention.
Pack in railway vehicle 30 based on the liquid cooling type power convertor for railway vehicle of first embodiment of the present invention, this railway vehicle 30 has chassis 12, electrical motor 13 and pantograph 11 (with reference to Fig. 4).Promptly, liquid cooling type power convertor for railway vehicle has: to the vehicular drive power supply 20 of supply capabilities such as electrical motor 13, accessory feed 21 to room light or air-conditioning supply capability, carry the pump 3 of refrigerant fluid with power supply 20 and accessory feed 21 to vehicular drive, connect pump 3 and vehicular drive with the pipe arrangement 4 between power supply 20, the accessory feed 21, be located in the air channel 7, by pipe arrangement 4 and vehicular drive with power supply 20 and accessory feed 21, pump 3 bonded assembly Hs Exch 5.
In air channel 7, be provided with first blowing engine 6 of heat exchanger 5 forced air supplys and second blowing engine 10 of arranged in series between first blowing engine 6 and H Exch 5.
That is, in air channel 7, from air intake vent (inlet) 8 to exhausr port (outlet) 9 first blowing engine 6, second blowing engine 10 and the Hs Exch 5 arranged in sequential series.
In the liquid cooling type power convertor for railway vehicle that constitutes like this, pump 3 is connected the refrigerant fluid inlet of vehicular drive with power supply 20 by pipe arrangement 4.The refrigerant fluid inlet of accessory feed 21 is in parallel with power supply 20 with vehicular drive, is connected with pump 3 by pipe arrangement 4.Vehicular drive is connected with the refrigerant fluid inlet of H Exch 5 in being arranged on the air channel 7 that is used to make wind flow with the cooling liquid outlet of power supply 20 and accessory feed 21.The cooling liquid outlet of H Exch 5 is connected with pump 3.First blowing engine 6 is located at than H Exch 5 near in the air channel 7 of air intake vent 8 sides.Second blowing engine 10 is located in air channel 7 between blowing engine 6 and the H Exch 5.
In the liquid cooling type power convertor for railway vehicle that constitutes like this,, the pipe arrangement 4 of flowing through, be diverted to vehicular drive with power supply 20 sides and accessory feed 21 sides from the refrigerant fluid that pump 3 is discharged.Flow into vehicular drive and use the refrigerant fluid of power supply 20 to cool off vehicular drive, use the cooling liquid outlet of power supply 20 to flow into pipe arrangement 4 from vehicular drive with behind the power supply 20.After flowing into the refrigerant fluid cooling accessory feed 21 of accessory feed 21, from the cooling liquid outlet inflow pipe arrangement 4 of accessory feed 21.From the refrigerant fluid of accessory feed 21 inflow pipe arrangements 4, with the refrigerant fluid interflow, the inflow heat exchanger 5 that flow into pipe arrangements 4 from vehicular drive with power supply 20.When moving usually, between flow periods, by the air cooling that first blowing engine 6 and second blowing engine 10 are sent here, the pipe arrangement 4 of flowing through returns pump 3 to the refrigerant fluid of inflow heat exchanger 5 in the pipe arrangement of H Exch 5.
When railway vehicle stops, make first blowing engine 6 out of service, only make than first blowing engine, 6 little electrically operated second blowing engines 10 and move.At this moment, second blowing engine, 10 to the first blowing engines 6 are little, and draft capacity is little.In addition,, can adopt the instruction that derives from master controller and derive from the signal etc. of ATO, ATC etc., be not particularly limited for the detection that railway vehicle stops.
When the railway vehicle that is mounted with the liquid cooling type power convertor for railway vehicle of such formation stops,, have only accessory feed 21 to move, so liquid cooling type power converting means single-piece cal val diminishes because vehicular drive stops with power supply 20.For this reason, when railway vehicle stops, even make first blowing engine 6 out of service, only move the second small-sized blowing engine 10 and reduce air output, also can properly cool off accessory feed 21.And, when stopping AT STATION, because first blowing engine 6 that produces loud noise is stopped, and only make smaller second blowing engine, 10 actions of sound, so, can realize quietization simultaneously.
Below the formation of vehicular drive with power supply 20 and accessory feed 21 described.Vehicular drive, and constitutes with the liquid cooling radiating gill 2 of this stream that semiconductor element 1 is connected, there is coolant flow inside by the semiconductor element 1 that can carry out switch motion with power supply 20.But accessory feed 21 is by the semiconductor element 1a of switch, and constitutes with the liquid cooling radiating gill 2a of the stream that this semiconductor element 1a is connected, there is coolant flow inside.
With in the power supply 20, the heat by semiconductor element 1 produces passes to the refrigerant fluid that flows in liquid cooling radiating gill 2 by liquid cooling radiating gill 2 at the vehicular drive that constitutes like this.Semiconductor element 1 is because can be by liquid cooling radiating gill 2 to cooled heat transfer fluid, so can be controlled at component temperature in the specified value.
The liquid cooling type power convertor for railway vehicle of present embodiment, under the state that makes vehicular drive with the cooling system communization of power supply 20 and accessory feed 21, can distinguish under arbitrary situation when vehicle is advanced, when vehicle stops and suitably cool off vehicular drive with power supply and accessory feed (as the heat-sinking capability suitable) with producing the heat waste dephasing, and quietization can realize that vehicle stops the time.
The liquid cooling type power convertor for railway vehicle of present embodiment, different with existing liquid cooling type power convertor for railway vehicle, owing to can stop the time control but ability of freezing at vehicle, so can not make semiconductor element 1, the 1a over cooling of vehicular drive with power supply 20 and accessory feed 21, the temperature change of semiconductor element 1,1a as a result is little, therefore can prolong the life-span of semiconductor element 1,1a.
In addition, in the liquid cooling type power convertor for railway vehicle of present embodiment, when vehicle operating, make first large-scale blowing engine 6 and small-sized second blowing engine, 10 actions, when vehicle stops, only making 10 actions of small-sized second blowing engine; But also can when vehicle operating, only make large-scale first blowing engine, 6 actions, when vehicle stops, only making small-sized second blowing engine, 10 actions.
Second embodiment
Explain liquid cooling type power convertor for railway vehicle with reference to accompanying drawing based on second embodiment of the present invention.Fig. 2 is based on the pie graph of the liquid cooling type power convertor for railway vehicle of second embodiment of the present invention.Adopt identical Reference numeral for the parts identical, and omit its explanation with the structure shown in Fig. 1.
Liquid cooling type power convertor for railway vehicle based on second embodiment of the present invention is the position of the second small-sized blowing engine 10 with the different of liquid cooling type power convertor for railway vehicle of first embodiment.
The second small-sized blowing engine 10 of the liquid cooling type power convertor for railway vehicle of present embodiment is 7 the outside in the air channel, and be located at air channel 7 exhausr port 9 near.
In the liquid cooling type power convertor for railway vehicle of present embodiment, same with the liquid cooling type power convertor for railway vehicle of first embodiment, when vehicle operating, make first large-scale blowing engine 6 and small-sized second blowing engine, 10 actions, when vehicle stops, only making small-sized second blowing engine 10 move.
When vehicle stopped, under the sucking action of second blowing engine 10, air flowed in air channel 7, by H Exch 5 heat radiations.
The liquid cooling type power convertor for railway vehicle of the liquid cooling type power convertor for railway vehicle of Gou Chenging and first embodiment is same like this, under the state that makes vehicular drive with the cooling system communization of power supply 20 and accessory feed 21, under arbitrary situation when vehicle is advanced, when vehicle stops, can distinguish and suitably cool off vehicular drive with power supply and accessory feed, and quietization can realize that vehicle stops the time.
In addition, even in the liquid cooling type power convertor for railway vehicle of present embodiment,, therefore also can prolong the life-span of semiconductor element 1 and 1a owing to also can reduce the temperature change amplitude of semiconductor element 1 and 1a.
In addition, in the liquid cooling type power convertor for railway vehicle of present embodiment, the second small-sized blowing engine 10 is located at the outside of the exhausr port 9 in air channel 7, but also it can be located at the outside of air intake vent 8.
The 3rd embodiment
Explain liquid cooling type power convertor for railway vehicle with reference to accompanying drawing based on the 3rd embodiment of the present invention.Fig. 3 is based on the pie graph of the liquid cooling type power convertor for railway vehicle of the 3rd embodiment of the present invention.Adopt identical Reference numeral for the parts identical, and omit its explanation with the structure shown in Fig. 1.
Based on the liquid cooling type power convertor for railway vehicle of the 3rd embodiment of the present invention have air trunk 7a and with the secondary air channel 7b of air trunk 7a bonded assembly, the outlet of secondary air channel 7b is connected with air trunk 7a.The first large-scale blowing engine 6 is set in air trunk 7a, the second small-sized blowing engine 10 is set in secondary air channel 7b.
When vehicle operating, make first large-scale blowing engine 6 and small-sized second blowing engine, 10 actions, when vehicle stops, only making small-sized second blowing engine, 10 actions.
In the liquid cooling type power convertor for railway vehicle that constitutes like this, owing to the first large-scale blowing engine 6 is arranged in different air channel 7a, the 7b independently with the second small-sized blowing engine 10, is difficult to the effect of interference mutually so have two kinds of blowing engines 6,10.
In addition, in the liquid cooling type power convertor for railway vehicle that constitutes like this, under the state that makes vehicular drive with the cooling system communization of power supply 20 and accessory feed 21, even under the arbitrary situation when vehicle is advanced, when vehicle stops, also can distinguish and suitably cool off vehicular drive with power supply and accessory feed, and quietization can realize that vehicle stops the time.
In addition, even in the liquid cooling type power convertor for railway vehicle of present embodiment,, therefore also can prolong the life-span of semiconductor element 1 and 1a owing to also can reduce the temperature change amplitude of semiconductor element 1 and 1a.
The 4th embodiment
Below, explain liquid cooling type power convertor for railway vehicle with reference to accompanying drawing based on the 4th embodiment of the present invention.Fig. 4 is based on the pie graph of the liquid cooling type power convertor for railway vehicle of the 4th embodiment of the present invention.Adopt identical Reference numeral for the parts identical, and omit its explanation with the structure shown in Fig. 1 to Fig. 3.
In the liquid cooling type power convertor for railway vehicle based on the 4th embodiment of the present invention, first blowing engine 6 is located at the top of the railway vehicle 30 that comprises chassis 12, electrical motor 13 and pantograph 11, and H Exch 5 is located at the downside of first blowing engine 6.
The liquid cooling type power convertor for railway vehicle of present embodiment, flow into air in the air channel 7 under the effect of the driving of first blowing engine 6 from air intake vent 8 during vehicle operating, make wind flow to downside from the upside of railway vehicle 30, cooling heat exchanger 5 is discharged from exhausr port 9.When vehicle stops, stopping first blowing engine 6.This moment, air flowed in the air channels 7 from exhausr port 9, by natural ventilation, wind was flowed to below the vehicle 30 above the vehicle 30 air channel 7 in, and cooling heat exchanger 5 is then from air intake vent 8 discharges.
The liquid cooling type power convertor for railway vehicle of present embodiment makes first blowing engine 6 stop when vehicle stops and also needn't making other blowing engine action, so quiet effective.
The liquid cooling type power convertor for railway vehicle of Gou Chenging like this, under the state that makes vehicular drive with the cooling system communization of power supply 20 and accessory feed 21, even under the arbitrary situation when vehicle is advanced, when vehicle stops, also can distinguish and suitably cool off vehicular drive with power supply and accessory feed, and quietization can realize that vehicle stops the time.
Even in the liquid cooling type power convertor for railway vehicle of present embodiment,, therefore also can prolong the life-span of semiconductor element 1 and 1a owing to also can reduce the temperature change amplitude of semiconductor element 1 and 1a.
In addition, even air channel 7 is crooked with the part in air channel, because as long as make air flow, so air channel 7 there is no need to become linear at the above-below direction of railway vehicle 30 by natural ventilation.In addition, in the liquid cooling type power convertor for railway vehicle of present embodiment, first blowing engine 6 is located at the upside of H Exch 5, even but the downside that first blowing engine 6 is located at H Exch 5 also can be obtained same effect, so also can be located at first blowing engine 6 downside of H Exch 5.
The 5th embodiment
Below, explain liquid cooling type power convertor for railway vehicle with reference to accompanying drawing based on five embodiments of the present invention.Fig. 5 is based on the pie graph of the liquid cooling type power convertor for railway vehicle of the 5th embodiment of the present invention.Adopt identical Reference numeral for the parts identical, and omit its explanation with the structure shown in Fig. 1 to Fig. 4.
Liquid cooling type power convertor for railway vehicle based on the 5th embodiment of the present invention has: to the vehicular drive power supply 20 of supply capabilities such as electrical motor 13, accessory feed 21 to room light or air-conditioning supply capability, carry the pump 3 of refrigerant fluid with power supply 20 and accessory feed 21 to vehicular drive, connect pump 3 and vehicular drive power supply 20, the pipe arrangement 4 of accessory feed 21, be located at the first H Exch 5a in the air trunk 7a, be located at equally in the air trunk 7a, force to send into first blowing engine 6 of air to first H Exch 5, be located at second blowing engine 10 in the secondary air channel 7b, be located at the second H Exch 5b in the secondary air channel 7b.In the liquid cooling type power converting means of present embodiment, 7b is separate for air trunk (air channel) 7a and secondary air channel (another air channel),, do not conform to stream substantially from flowing of secondary air channel 7b leaked-in air and air trunk 7a as the liquid cooling type power converting means of the 3rd embodiment.
At this, the draft capacity of second blowing engine 10 is littler than first blowing engine 6.In addition, the second H Exch 5b is connected with the first H Exch 5a, and heat-exchange capacity is littler than the first H Exch 5a simultaneously.And, constitute H Exch 5a, 5b by the first H Exch 5a and the second H Exch 5b.
In the liquid cooling type power convertor for railway vehicle that constitutes like this, pump 3 is connected the refrigerant fluid inlet of vehicular drive with power supply 20 by pipe arrangement 4.The refrigerant fluid inlet of accessory feed 21 is in parallel with power supply 20 with vehicular drive, is connected with pump 3 by pipe arrangement 4.Vehicular drive is with power supply 20 cooling liquid outlet with accessory feed 21, is connected with the refrigerant fluid inlet of the first H Exch 5a in being arranged on the air trunk 7a that is used to make wind flow.The cooling liquid outlet of H Exch 5a is arranged in the secondary air channel 7b by pipe arrangement 4, is connected with the refrigerant fluid inlet of the second H Exch 5b littler than the first H Exch 5a.The cooling liquid outlet of the second H Exch 5b is connected with pump 3.First blowing engine 6 is located in the air trunk 7.Second blowing engine 10 is located among the secondary air channel 7b.
In the liquid cooling type power convertor for railway vehicle that constitutes like this, when vehicle operating, drive second blowing engine 10 and first blowing engine 6, dispel the heat at the first H Exch 5a and the second H Exch 5b with power supply 20 and the refrigerant fluid that accessory feed 21 flows out from vehicular drive.When vehicle stops, first blowing engine 6 is stopped, only moving second blowing engine 10.At this moment, refrigerant fluid mainly dispels the heat at the second H Exch 5b.
For the liquid cooling type power convertor for railway vehicle of such formation, owing to when vehicle stops, first blowing engine 6 is stopped, only driving second blowing engine 10, so, can realize quietization.In addition, because first blowing engine 6 and second blowing engine 10 independently are located among air channel 7a, the 7b respectively, so do not interfere between the blowing engine 6,10.
The liquid cooling type power convertor for railway vehicle of Gou Chenging like this, under the state that makes vehicular drive with the cooling system communization of power supply 20 and accessory feed 21, even under the arbitrary situation when vehicle is advanced, when vehicle stops, also can distinguish and suitably cool off vehicular drive with power supply and accessory feed, and quietization can realize that vehicle stops the time.
In addition, even in the liquid cooling type power convertor for railway vehicle of present embodiment,, therefore can prolong the life-span of semiconductor element 1 and 1a owing to also can reduce the temperature change amplitude of semiconductor element 1 and 1a.
The 6th embodiment
Below, explain liquid cooling type power convertor for railway vehicle with reference to accompanying drawing based on the 6th embodiment of the present invention.Fig. 6 is based on the pie graph of the liquid cooling type power convertor for railway vehicle of the 6th embodiment of the present invention.Adopt identical Reference numeral for the parts identical, and omit its explanation with the structure shown in Fig. 1 to Fig. 5.
Big different being based on liquid cooling type power convertor for railway vehicle with the liquid cooling type power convertor for railway vehicle of the 5th embodiment of the 6th embodiment of the present invention: air channel 7 is not to be made of air trunk and secondary air channel but to have single structure, and the second H Exch 5b is not located in the air channel 7 and is provided in a side of under the floor of the outer railway vehicle 30 in air channel 7.
In Fig. 6, configuration first blowing engine 6 and the first H Exch 5a in air channel 7 with single structure.
For the liquid cooling type power convertor for railway vehicle of such formation, when vehicle operating, drive first blowing engine 6, cooled off refrigerant fluid by the first H Exch 5a after, once more refrigerant fluid is cooled off by the second H Exch 5b of the distinguished and admirable mistake of travelling.When vehicle stops, first blowing engine 6 is stopped, the first H Exch 5a and the second H Exch 5b cool off refrigerant fluid by natural ventilation.
The second H Exch 5b in the liquid cooling type power convertor for railway vehicle of Gou Chenging like this, because when vehicle is advanced, utilize the wind that travels to cool off, and when vehicle stops, cooling off refrigerant fluid through natural ventilation, second blowing engine 10 must be set so do not resemble the liquid cooling type power converting means of the 5th embodiment.Thereby, compare with the liquid cooling type power convertor for railway vehicle of the 5th embodiment, can further realize quietization of vehicle.
The liquid cooling type power convertor for railway vehicle of Gou Chenging like this, under the state that makes vehicular drive with the cooling system communization of power supply 20 and accessory feed 21, even under the arbitrary situation when vehicle is advanced, when vehicle stops, also can distinguish and suitably cool off vehicular drive with power supply and accessory feed, and quietization can realize that vehicle stops the time.
In addition, even in the liquid cooling type power convertor for railway vehicle of present embodiment,, therefore also can prolong the life-span of semiconductor element 1 and 1a owing to also can reduce the temperature change amplitude of semiconductor element 1 and 1a.
In addition, in Fig. 6, in liquid cooling type power convertor for railway vehicle, as long as the second H Exch 5b is located at the outside in air channel 7.The configuration direction that the air channel 7 of the first H Exch 5a is set can not be the above-below direction of railway vehicle 30 also, and is arranged to horizontal direction.
If the electric locomotive that the accessory feed load falls sharply in the time of will being used for vehicle based on the liquid cooling type power converting means of first to the 6th embodiment of the present invention and stopping then can obtaining best effect.
In addition, outside liquid cooling type power convertor for railway vehicle based on the 4th embodiment of the present invention, because air channel 7,7a, the 7b of H Exch 5,5a, 5b are set also can be in horizontal (the sleeper direction) of railway vehicle 30 or vertically (track alignment) extension, so there is no need to be arranged on specially above-below direction.

Claims (13)

1. liquid cooling type power convertor for railway vehicle has:
The vehicular drive power supply;
Accessory feed;
Pump is connected with described accessory feed with power supply with described vehicular drive by pipe arrangement, and carries refrigerant fluid to described vehicular drive with power supply and described accessory feed;
H Exch is connected with described accessory feed with power supply with described vehicular drive by pipe arrangement, and the refrigerant fluid of discharging with power supply and described accessory feed from described vehicular drive is carried out interchange of heat;
Cool off first blowing engine of described H Exch;
It is characterized in that described liquid cooling type power convertor for railway vehicle also has second blowing engine, littler than the described first blowing engine draft capacity, cool off described H Exch;
When railway vehicle stops, described first blowing engine is stopped, only making described second blowing engine action.
2. liquid cooling type power convertor for railway vehicle as claimed in claim 1 is characterized in that, described first blowing engine and described second blowing engine are located in the same air channel, are arranged in series.
3. liquid cooling type power convertor for railway vehicle as claimed in claim 2 is characterized in that, described H Exch and described first blowing engine and described second blowing engine are located in the same air channel.
4. liquid cooling type power convertor for railway vehicle as claimed in claim 1 is characterized in that, described first blowing engine and described H Exch are located in the same air channel, and described second blowing engine is located at the inlet outside in described air channel or the outlet outside in air channel.
5. liquid cooling type power convertor for railway vehicle as claimed in claim 1 is characterized in that, described first blowing engine is arranged in the air trunk, and described second blowing engine is arranged in the secondary air channel, and the outlet in secondary air channel is connected with air trunk.
6. liquid cooling type power convertor for railway vehicle as claimed in claim 1, it is characterized in that, described H Exch has first H Exch, and is connected with described first H Exch and than the second little H Exch of the described first H Exch heat-exchange capacity; Described first H Exch of described first blower cools; Described second H Exch of described second blower cools; When railway vehicle stops, described first blowing engine is stopped, making described second blowing engine operation.
7. liquid cooling type power convertor for railway vehicle as claimed in claim 6, it is characterized in that, described first H Exch and described first blowing engine are arranged in the same air channel, and described second H Exch is with in described second blowing engine is arranged on another identical air channel.
8. liquid cooling type power convertor for railway vehicle as claimed in claim 6 is characterized in that, described first H Exch and described first blowing engine are arranged in the same air channel, and described second H Exch is located at outside this air channel.
9. liquid cooling type power convertor for railway vehicle as claimed in claim 8 is characterized in that, described second H Exch is located under the floor of railway vehicle.
10. liquid cooling type power convertor for railway vehicle has:
The vehicular drive power supply;
Accessory feed;
Pump is connected with described accessory feed with power supply with described vehicular drive by pipe arrangement, carries refrigerant fluid to described vehicular drive with power supply and described accessory feed;
H Exch is connected with described accessory feed with power supply with described vehicular drive by pipe arrangement, and the refrigerant fluid of discharging with power supply and described accessory feed from described vehicular drive is carried out interchange of heat;
Cool off first blowing engine of described H Exch;
It is characterized in that, when vehicle stops, described first blowing engine is stopped, described H Exch is by cooling off towards the top flow air from this railway vehicle below.
11. liquid cooling type power convertor for railway vehicle as claimed in claim 10, it is characterized in that, described H Exch has first H Exch, and is connected with described first H Exch and than the second little H Exch of the described first H Exch heat-exchange capacity; First blower cools, first H Exch; When railway vehicle stops, described first blowing engine is stopped.
12. liquid cooling type power convertor for railway vehicle as claimed in claim 11 is characterized in that, described first H Exch and described first blowing engine are arranged in the same air channel, and described second H Exch is located at outside this air channel.
13. liquid cooling type power convertor for railway vehicle as claimed in claim 12 is characterized in that, described second H Exch is located under the floor of railway vehicle.
CN2006101266811A 2005-09-02 2006-09-01 Liquid cooling type power convertor for railway vehicle Expired - Fee Related CN1923558B (en)

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JP2005255052A JP4643399B2 (en) 2005-09-02 2005-09-02 Liquid-cooled power converter for railway vehicles
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FR3003725B1 (en) * 2013-03-22 2015-04-17 Alstom Transport Sa ELECTRIC POWER CONVERTER FOR A RAILWAY VEHICLE.
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