CN103649543A - Power conversion device for driving water supply device and power conversion device for driving liquid supply device - Google Patents

Power conversion device for driving water supply device and power conversion device for driving liquid supply device Download PDF

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Publication number
CN103649543A
CN103649543A CN201280035089.4A CN201280035089A CN103649543A CN 103649543 A CN103649543 A CN 103649543A CN 201280035089 A CN201280035089 A CN 201280035089A CN 103649543 A CN103649543 A CN 103649543A
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CN
China
Prior art keywords
water supply
radiating fin
power inverter
water
supply installation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201280035089.4A
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Chinese (zh)
Inventor
井堀敏
杉山和正
川岛琢也
西冈义治
大力干彦
齐藤宏一郎
佐藤正信
千野则昭
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Hitachi Industrial Equipment Systems Co Ltd
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Hitachi Industrial Equipment Systems Co Ltd
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Filing date
Publication date
Application filed by Hitachi Industrial Equipment Systems Co Ltd filed Critical Hitachi Industrial Equipment Systems Co Ltd
Publication of CN103649543A publication Critical patent/CN103649543A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B35/00Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/08Cooling; Heating; Preventing freezing

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Inverter Devices (AREA)

Abstract

A power conversion device for driving a water supply device comprises: a water cooling type cooling fin equipped with a water flow pipe main body inside and mounted with a power semiconductor module; and a cooling fin housing a first water flow pipe connected to the exit of the water supply device, a second water flow pipe connected to the fluid intake of the water supply device directly connected to an AC electric motor, and a flowing water pipe main body equipped with the first water flow pipe and the second water flow pipe at both ends thereof, respectively, and attached to a composite module housing a power semiconductor. The power conversion device supplies AC power to the AC electric motor characterized by being configured so as to make a liquid flow in the flowing water pipe main body from the first water flow pipe and discharge the liquid to the liquid intake of the water supply device from the second water flow pipe.

Description

Water supply installation drives with power inverter, liquid feed means driving power inverter
Technical field
The present invention relates to water supply installation drives with power inverter and liquid feed means driving power inverter.
Background technique
Power inverter more speed control unit as motor all in industrial field and household appliances.Because the power semiconductor in power inverter produces larger loss, so adopt the cooling structure of heating that this loss is produced.In power inverter, carry out when cooling, generally possessing radiating fin and cooling fan, the heat that to make from heater be power semiconductor conducts to radiating fin, by cooling fan, to radiating fin, carries air to carry out heat exchange, with air cooling way, dispels the heat.
But for the problem of heat exchange efficiency, the radiating fin in power inverter can not miniaturization, the problem that exists power inverter to maximize under air cooling way.
So, for example, in patent documentation 1, directly contacting with the inverter as power inverter from the cooling air with fan of motor of being cooled when the pump by as water supply installation disclosed, make this DC-to-AC converter fully cooling.
In addition, in patent documentation 2, disclose and will have as the pump of water supply installation and rotating machine integrated many water supply installations that arrange in parallel of the control gear of control gear, above-mentioned control gear possesses the inverter as power inverter of the driving said pump in the said pump of being fixedly installed on, store the rewritable storage of the control program of above-mentioned inverter and the running control program of above-mentioned water supply installation, the input output portion being connected with the sensor that is configured in the each several part of above-mentioned water supply installation, the running control program of storing in above-mentioned rewritable storage is rewritten as and the unit that the corresponding best program of on-the-spot device structure is set, above-mentioned rewritable storage is flash memory or EEPROM, rotating machine integrated being configured to by above-mentioned control gear of above-mentioned many control gear communicates with wireless between each machinery, a control gear possessing during above-mentioned many control gear are rotating machine integrated, based on above-mentioned running control program, comprise carry out pump append and appending of disconnecting disconnects running, a pump then makes other pump up moving alternate-running while stopping because of the little water yield, a pump makes other pump up the mutual coordination operation of moving failover running while breaking down.
In addition, in patent documentation 3, disclose using the pump as water supply installation to water pressurized delivered, the pipe arrangement being connected with ejection side with the suction side of the shell of this pump, drive above-mentioned pump motor, this motor is supplied with to the driving power circuit of electric power, the electronic control circuit of controlling the running of said pump is housed in the water supply installation in cabinet integratedly, be configured to above-mentioned motor and said pump are configured on identical spin axis, one end installation pump rotor at the running shaft of above-mentioned motor, at the other end provided with fan, follow the air-flow of the rotation of this fan to make the cooling part of the cooling above-mentioned driving power circuit of air flow in above-mentioned cabinet.
Prior art document
Patent documentation
Patent documentation 1: No. 3619651 specification of Japanese Patent
Patent documentation 2: No. 4381252 specification of Japanese Patent
Patent documentation 3: TOHKEMY 2003-21052 communique
Summary of the invention
The technical problem that invention will solve
The power semiconductor that can supply with in the power inverter of alternating electromotive force of variable voltage variable frequency the Wechselstrommotor directly linking with water supply installation produces larger loss, and institute is so that the cooling structure of heating of this loss generation is essential.Generally possess radiating fin and cooling fan, the heat that to make from heater be power semiconductor conducts to radiating fin, by cooling fan, to radiating fin, carries air to carry out heat exchange, with air cooling way, dispels the heat.
But for the problem of heat exchange efficiency, the radiating fin in power inverter need to be used for making heat conducting envelope volume under air cooling way, radiating fin and cooling fan can not miniaturizations, the problem that exists power inverter to maximize.
The object of the present invention is to provide by making cooling structure miniaturization make the power inverter of integral miniaturization.
Means for technical solution problem
In order to reach above-mentioned purpose, for example, what adopt following characteristics supplies with the structure of alternating electromotive force to above-mentioned Wechselstrommotor, comprises: in inside, possess overflow pipe body and be equipped with the water-cooled radiating fin of power semiconductor assembly; And radiating fin, it is built-in with the first-class water pipe that is connected with the exhaust port of above-mentioned water supply installation, the second water pipe being connected with the suction port of fluid that is directly linked to the water supply installation of above-mentioned Wechselstrommotor and the overflow pipe body that is provided with respectively above-mentioned first-class water pipe and above-mentioned second water pipe at two end part, and be installed in the semi-conductive composite component of built-in power, be configured to and make liquid flow into above-mentioned overflow pipe body from above-mentioned first-class water pipe, the suction port from above-mentioned second water pipe to the liquid of above-mentioned water supply installation is discharged.
The effect of invention
According to the present invention, the heat that can to make from the heater in power inverter be power semiconductor conducts to radiating fin, cooling expeditiously with the water that heat exchange efficiency is good, so radiating fin and cooling fan can miniaturizations, it is small-sized that result power inverter also can become.
Accompanying drawing explanation
Fig. 1 is the main circuit structure figure of power inverter.
Fig. 2 is an example of the main circuit component allocation plan of power inverter.
Fig. 3 is an example of the water-cooling structure figure of radiating fin.
Fig. 4 is an embodiment who comprises the pumping system structure of the power inverter that drives the Wechselstrommotor directly linking with pump.
Fig. 5 is the embodiment that the pumping system structure that comprises the power inverter that drives the Wechselstrommotor directly linking with pump in Fig. 4 is observed from the side.
Fig. 6 is an embodiment who comprises the pumping system structure of the power inverter that drives the Wechselstrommotor directly linking with the pump with safety check.
Fig. 7 is an embodiment who comprises the pumping system structure of the power inverter that drives the Wechselstrommotor directly linking with the pump with safety check.
Embodiment
Embodiment 1
With accompanying drawing, the present invention is described below.Wherein, the present invention is not limited by illustrated example.Fig. 1 represents the main circuit structure figure of the power inverter 22 of the present embodiment.The 1st, alternating electromotive force is converted to the transducer of direct current power, the 2nd, smoothing capacitor, the 3rd, direct current power is converted to the inverter of the alternating electromotive force of optional frequency, the 4th, Wechselstrommotor.The 6th, for making to possess the cooling cooling fan 14 of power semiconductor assembly 13 of transducer 2 and inverter 4.
The 8th, can set the various control data of power inverter 22, the digit manipulation panel of change and abnormal show.The 7th, the Temperature Detector of the detection transducer 2 carrying on radiating fin 14 described later and the heating of the power semiconductor assembly in inverter 3.11 are arranged on the Temperature Detector of power semiconductor assembly inside, be arranged on silicon near.This Temperature Detector 7 and 11 is resistance value Yin Wendu and the thermistor that changes.This thermistor can be the characteristic that resistance value rises along with temperature rising, can be also that resistance value is along with temperature rises and the characteristic of decline.
The 5th, the power semiconductor of control inverter is switching element the parts that play the effect of the control of being responsible for power inverter 22 integral body, be the control circuit that has carried microcomputer, be configured to the control of correspondingly carrying out needing from the various control data of digit manipulation panel 8 inputs and process.The 12nd, the drive circuit of the switching element of driving inverter.Power inverter 22 is that inverter is common practise, so omit detailed explanation.
Fig. 2 is an example of main circuit component allocation plan.Being configured to the integrated power semiconductor that carries transducer 1, inverter 3 and temperature transducer 7 in an assembly is that composite component 13 carries to radiating fin 14, at the upper surface of radiating fin, installs for making the dotted portion of the cooling cooling fan 6(figure of radiating fin) structure.Because be configured to the semi-conductive composite component 13 of integrated power, produce larger loss, so the heating that this loss can be produced conducts to radiating fin 14, cooling expeditiously with the water that heat exchange efficiency is good.Certainly, also can make radiating fin 14 further cooling with the cooling fan 6 shown in Fig. 1.
By this cooling fan 6, can protect the composite component 13 that possesses power semiconductor 9 not to be subject to the overheated impact that temperature rises.Herein, in the situation that the environment temperature of power inverter 22 is abnormal, raise, the inhalation temperature that absorbs the cooling fan of this environment temperature raises, cooling effect reduces, when the detected temperatures of temperature transducer 7 becomes predefined temperature when above, power inverter 22 is stopped, on operation panel 8, showing the temperature overheating of power semiconductor.
Fig. 3 is an example of the water-cooling structure figure of radiating fin 14.On radiating fin 14, be provided with water stream tube 15(water suction side for entrance) and water stream tube 16(drain-side for outlet), in the inside of radiating fin 14, be built-in with the pipe 17 of the water that circulates.Entrance is respectively the end of the built-in pipe 17 in the inside of radiating fin 14 with water stream tube 15 and outlet by water stream tube 16, is to be linked to be the pipe of.Certainly, so long as water flows to the structure of water stream tube 16 for outlet from entrance by water stream tube 15, pipe is not construed as limiting.
This example (line segment ab direction) is arranged on entrance the right side of accompanying drawing by water stream tube 15, outlet is arranged on to left side by water stream tube 16, and make entrance by water stream tube 15 and export to use the out of position of water stream tube 16, or be arranged on upper next side's direction side (line segment cd direction) of accompanying drawing, and then, entrance is arranged on to line segment ab direction, outlet is arranged on to line segment cd direction by water stream tube 16 by water stream tube 15, or make it contrary, effect of the present invention does not change.Because can from produce the formation of larger loss be the semi-conductive composite component 13 of integrated power to radiating fin 14 heat conduction, cooling expeditiously with the water that heat exchange efficiency is good, so can realize the miniaturization of radiating fin 14 and cooling fan 6.In the present embodiment, make water as refrigeration agent, but need not be water, also can be applicable to make water liquid in addition as the liquid feed means of refrigeration agent.This point is also same in embodiment described later.
Fig. 4 is an embodiment who comprises the pumping system structure of the power inverter 22 that drives the Wechselstrommotor 4 directly linking with pump 21.Generally speaking, the pressure of the ejection side of pump is larger than the pressure of the suction side of pump, and suction side is quite large with the pressure difference of ejection side.As everyone knows, liquid flows from higher position to lower position or flows to the low place of pressure from the high place of pressure.Its drop is larger or its pressure difference is larger, just more can make flow and flow velocity increase.
It is medium that pump generally be take the water that approaches normal temperature, so be the system architecture that can effectively utilize water.Now the most important is, must select two places that pressure difference is larger and could obtain larger cooling effect.In view of this point, by the entrance of radiating fin 14 is connected with the water stream tube 15 ejection side line 19 higher with the pressure of pump 21, the outlet of radiating fin 14 is connected with the water stream tube 16 suction side pipe arrangement 18 lower with the pressure of pump 21, can utilize the suction side pipe arrangement 18 of pump 21 and the larger pressure difference of ejection side line 19, in the pipe 17 that water is buried underground in the inside of radiating fin 14, flow.
Therefore, can be cooling by the good water of the radiating fin 14 use heat exchange efficiencys composite component 13 that makes more expeditiously compared with the past, can make radiating fin 14 more in the past than the more miniaturization of radiating fin of using, and can make cooling fan 6 more in the past than the more miniaturization of cooling fan of using.Can make composite component 13 fully cooling with radiating fin 14 in the situation that, also cooling fan 6 can be set, realize the reduction of further miniaturization and manufacture cost.
Fig. 5 is an embodiment who drives the pumping system structure of the power inverter 22 of the Wechselstrommotor 4 directly linking with pump 21 to observe from the side to comprising in Fig. 4.The water stream tube 15 for entrance that connects radiating fin 14 on the ejection side line 19 of pump 21 connects the water stream tube 16 for outlet of radiating fin 14 on the suction side of pump pipe arrangement 18.As mentioned above, the pressure of the ejection side line 19 of pump is larger than the pressure of the suction side pipe arrangement 18 of pump 21, and suction side pipe arrangement 18 is quite large with the pressure difference of ejection side line 19, so can make water flow in built-in pipe 17 in radiating fin 14.
In the present embodiment, the important point is, entrance is chosen to be to suction side pipe arrangement 18 and the ejection side line 19 of the pump that pressure difference is larger with the tie point of water stream tube 15 and outlet with the tie point of water stream tube 16.For example, even entrance is chosen to be between 2 of pipe arrangement that pump sprays side line 19 with the tie point of water stream tube 16 with the tie point of water stream tube 15 and outlet, pressure difference between these 2 is very little, in the inside of radiating fin 14, built-in pipe 17 is not interior flows for water, even if or flow and can not flow through the water that enough carries out cooling amount.In addition between 2 of the pipe arrangement of selected pump suction side pipe arrangement 18, as entrance, with the tie point of water stream tube 15 and outlet, in the situation with the tie point of water stream tube 16, be also same.
Embodiment 2
Fig. 6 is an embodiment who comprises the pumping system structure of the power inverter 22 that drives the Wechselstrommotor 4 directly linking with the pump 21 with safety check.In the present embodiment, in the ejection side line 19 of pump 21, safety check 20 has been installed.As everyone knows, because 21 of pumps are to a direction rotation, so in the situation that pump 21 stops because of abnormity of power supply etc., in order to make water compared with low suction side pipe arrangement 18 adverse currents, safety check 20 is not set to pressure compared with high ejection side line 19 from pressure.That is, the present embodiment is to make the export mouth (tie point) of ejection side line 19 of the pump 21 that is connected by water stream tube 15 with the entrance of radiating fin 14 in the outlet of the ejection side line of pump 21 and the situation between safety check 20.
In the situation of the present embodiment, in the situation that power inverter 22 stops because of abnormity of power supply etc., pump 21 also stops, due to the effect of safety check 20, there is anti-sealing and through the entrance of radiating fin 14, with the outlet of water stream tube 15 and radiating fin 14, use water stream tube 16 to the effect of the suction side pipe arrangement adverse current of the lower pump of pressure from the ejection side line 19 of the higher pump of pressure.Power inverter 22 is arranged on the shell of pump 21, is connected with the water stream tube 15 for entrance of radiating fin 14 on the ejection side line 19 of pump, is connected with the water stream tube 16 for outlet of radiating fin 14 on the suction side of pump 21 pipe arrangement 18.That is, a part that is configured to water mobile in the ejection side line 19 that makes pump 21 flows to the water stream tube 15 for entrance of radiating fin 14, through the water stream tube 16 for outlet of radiating fin 14, turns back to the suction side pipe arrangement 18 of pump 21.
In the situation of the present embodiment, because power inverter 22 is directly installed on pump 21, so also can comprise in manufacture the place of the pumping system of the power inverter 22 that drives the Wechselstrommotor 4 directly linking with pump 21, under the state that the ejection side line 19 of pump 21 is connected by water stream tube 15, the suction side pipe arrangement 18 of pump is connected by water stream tube 16 with the outlet of radiating fin 14 with the entrance of radiating fin 14, dispatch from the factory, can save the trouble of user's assembling.; this structure need to not be connected the ejection side line 19 of pump 21, the suction side pipe arrangement 18 of pump 21 is connected by water stream tube 16 with the outlet of radiating fin 14 by water stream tube 15 with the entrance of radiating fin 14 respectively at the scene that pumping system is set, and has advantages of the convenience that can improve the on-the-spot assembling of pump 21 is set.
In the present embodiment, power inverter 22 is directly installed on pump 21, but is not limited to this structure, be arranged on the Wechselstrommotor 4 directly linking with pump 21 and also can obtain same effect.
Embodiment 3
Fig. 7 is other embodiments that comprise the pumping system structure of the power inverter 22 that drives the Wechselstrommotor 4 directly linking with the pump 21 with safety check 20.Only be with the difference of Fig. 6, the entrance of the radiating fin 14 in Fig. 3 with water stream tube 15 and outlet with water stream tube 16 be all configured in radiating fin 14 above.Be configured to the entrance that is connected with the ejection side line 19 of pump 21 and with water stream tube 16 both sides, be all arranged on the upside of radiating fin 14 with the outlet that water stream tube 15 is connected with suction side pipe arrangement 18 with pump 21.The situation of Fig. 6 is that the entrance of radiating fin 14 is arranged on the structure of the downside of radiating fin 14 with upside, outlet that water stream tube 15 is arranged on radiating fin 14 by water stream tube 16.By entrance with water stream tube 15 and outlet with water stream tube 16 both sides be configured in radiating fin 14 below also can obtain same effect.
Symbol description
1 ... transducer, 2 ... level and smooth with electrolytic condenser, 3 ... inverter, 4 ... Wechselstrommotor, 5 ... control circuit, 6 ... cooling fan, 7 ... Temperature Detector (temperature transducer), 8 ... digit manipulation panel, 9 ... power semiconductor, 10 ... resin forming shell, 11 ... the inner Temperature Detector (temperature transducer) arranging of power semiconductor assembly, 12 ... drive circuit, 13 ... transducer, inverter and temperature transducer carry the composite component in a package shell, 14 ... radiating fin, 15 ... the water stream tube entrance of radiating fin, 16 ... the water stream tube outlet of radiating fin, 17 ... pipe for current, 18 ... the suction side pipe arrangement of pump, 19 ... the ejection side line of pump, 20 ... the safety check of pump ejection side, 21 ... pump, 22 ... power inverter.

Claims (10)

1. Wechselstrommotor is supplied with to a water supply installation driving power inverter for alternating electromotive force, be it is characterized in that, comprising:
In inside, possess overflow pipe body and be equipped with the water-cooled radiating fin of power semiconductor assembly; With
Radiating fin, it is built-in with the first-class water pipe that is connected with the exhaust port of described water supply installation, the second water pipe being connected with the suction port of fluid that is directly linked to the water supply installation of described Wechselstrommotor and the overflow pipe body that is provided with respectively described first-class water pipe and described second water pipe at two end part, and be installed in the semi-conductive composite component of built-in power
Be configured to and make liquid flow into described overflow pipe body from described first-class water pipe, the suction port from described second water pipe to the liquid of described water supply installation is discharged.
2. water supply installation driving power inverter as claimed in claim 1, is characterized in that:
The first-class water pipe of described radiating fin is connected with the pipe arrangement of the discharge side of described water supply installation, the second water pipe of described radiating fin is connected with the pipe arrangement of the suction side of described water supply installation.
3. water supply installation driving power inverter as claimed in claim 2, is characterized in that:
Pipe arrangement at the exhaust port of the described water supply installation being connected with the described first-class water pipe of described radiating fin is provided with safety check, and the export mouth of the pipe arrangement of the discharge side of the described water supply installation being connected with described first-class water pipe is formed at the exhaust port of described water supply installation and the pipe arrangement between described safety check.
4. water supply installation driving power inverter as claimed in claim 1, is characterized in that:
Be arranged to one-piece type with described water supply installation.
5. the water supply installation driving power inverter as described in any one in claim 1~4, is characterized in that:
Possess the operation panel of setting operating condition,
At described operation panel, be provided with display unit.
6. a liquid feed means driving power inverter, is characterized in that, comprising:
Power inverter, it can supply with to the Wechselstrommotor directly linking with liquid feed means the alternating electromotive force of variable voltage variable frequency; With
Liquid-cooled radiating fin, it is equipped with the power semiconductor in described power inverter,
Be configured to and make liquid from the suction side with described liquid feed means and the liquid flow tube of discharging pipe arrangement that side is connected and flow to radiating fin described in each.
7. liquid feed means driving power inverter as claimed in claim 6, is characterized in that:
The liquid flow tube inlet side of described radiating fin is connected with the pipe arrangement of the discharge side of described liquid feed means, the liquid flow tube outlet side of described radiating fin is connected with the pipe arrangement of the suction side of described liquid feed means.
8. liquid feed means driving power inverter as claimed in claim 7, is characterized in that:
The export mouth of the pipe arrangement of the discharge side of the described liquid feed means being connected from the liquid flow tube inlet side with described radiating fin, is present between the exhaust port and safety check of described liquid feed means.
9. liquid feed means driving power inverter as claimed in claim 6, is characterized in that:
Be arranged to one-piece type with described liquid feed means.
10. the liquid feed means driving power inverter as described in any one in claim 6~9, is characterized in that:
The operation panel that possesses the operating condition of setting described power inverter,
At described operation panel, be provided with display unit.
CN201280035089.4A 2011-08-24 2012-07-06 Power conversion device for driving water supply device and power conversion device for driving liquid supply device Pending CN103649543A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2011-182102 2011-08-24
JP2011182102A JP5723725B2 (en) 2011-08-24 2011-08-24 Power conversion device for water supply device drive, Power conversion device for liquid supply device drive
PCT/JP2012/067267 WO2013027499A1 (en) 2011-08-24 2012-07-06 Power conversion device for driving water supply device and power conversion device for driving liquid supply device

Publications (1)

Publication Number Publication Date
CN103649543A true CN103649543A (en) 2014-03-19

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Application Number Title Priority Date Filing Date
CN201280035089.4A Pending CN103649543A (en) 2011-08-24 2012-07-06 Power conversion device for driving water supply device and power conversion device for driving liquid supply device

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JP (1) JP5723725B2 (en)
CN (1) CN103649543A (en)
WO (1) WO2013027499A1 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04364379A (en) * 1991-06-10 1992-12-16 Mitsubishi Electric Corp Inverter
JPH08109872A (en) * 1994-10-13 1996-04-30 Sanyo Electric Co Ltd Pump device
EP0831236A2 (en) * 1996-09-24 1998-03-25 WILO GmbH Motor pump with cooled frequency converter
US6000912A (en) * 1995-10-09 1999-12-14 Ebara Corporation Method of liquid-cooling an inverter device
JP2001132623A (en) * 1999-11-09 2001-05-18 Matsushita Electric Ind Co Ltd Pumping device
EP2224137A1 (en) * 2009-02-26 2010-09-01 Grundfos Management A/S Motor pump unit
CN101850713A (en) * 2010-03-31 2010-10-06 重庆长安汽车股份有限公司 Water-cooled motor controller of hybrid electric vehicle
JP2011017348A (en) * 2004-09-22 2011-01-27 Ebara Corp Water feed apparatus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000003142A1 (en) * 1998-07-08 2000-01-20 Ebara Corporation Frequency converter assembly
JP2011004497A (en) * 2009-06-17 2011-01-06 Toshiba Mitsubishi-Electric Industrial System Corp Power component attached to enclosure of power device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04364379A (en) * 1991-06-10 1992-12-16 Mitsubishi Electric Corp Inverter
JPH08109872A (en) * 1994-10-13 1996-04-30 Sanyo Electric Co Ltd Pump device
US6000912A (en) * 1995-10-09 1999-12-14 Ebara Corporation Method of liquid-cooling an inverter device
EP0831236A2 (en) * 1996-09-24 1998-03-25 WILO GmbH Motor pump with cooled frequency converter
JP2001132623A (en) * 1999-11-09 2001-05-18 Matsushita Electric Ind Co Ltd Pumping device
JP2011017348A (en) * 2004-09-22 2011-01-27 Ebara Corp Water feed apparatus
EP2224137A1 (en) * 2009-02-26 2010-09-01 Grundfos Management A/S Motor pump unit
CN101850713A (en) * 2010-03-31 2010-10-06 重庆长安汽车股份有限公司 Water-cooled motor controller of hybrid electric vehicle

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JP2013044273A (en) 2013-03-04
JP5723725B2 (en) 2015-05-27

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Application publication date: 20140319