CN1573117A - Refrigerant pump and cooling device employing same - Google Patents
Refrigerant pump and cooling device employing same Download PDFInfo
- Publication number
- CN1573117A CN1573117A CN200410033559.0A CN200410033559A CN1573117A CN 1573117 A CN1573117 A CN 1573117A CN 200410033559 A CN200410033559 A CN 200410033559A CN 1573117 A CN1573117 A CN 1573117A
- Authority
- CN
- China
- Prior art keywords
- pump
- refrigeration
- rotor
- live axle
- motor
- 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
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
- F04C29/0085—Prime movers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
A refrigerant pump employed in a semiconductor cooling device includes a sealed casing, an electric motor having a stator disposed outside the sealed casing and a rotor disposed within the sealed casing, a pump mechanism juxtaposed with the electric motor, and a drive shaft for transmitting a rotational force of the rotor to the pump mechanism. The stator is positioned closer to the pump mechanism than the rotor is.
Description
Technical field
The present invention relates to be used for liquid phase by utilizing refrigeration agent and the variation between the gas phase and cool off the cooling unit that produces the element of more heat transfer such as semiconductor element etc.The invention still further relates to the nothing oil refrigeration pump that adopts in the described refrigeration plant.
Background technique
Fig. 1 has illustrated disclosed traditional refrigeration pump among Japanese Patent Laid-Open Publication (the examining) No.7-47957.Refrigeration pump shown in it comprises the motor 32 of pump mechanism 31 and driven pump mechanism 31.Motor 32 comprises stator 33 and is rigidly fixed to the rotor 34 of live axle 35, live axle 35 driven pump mechanisms 31.The axial direction that stator 33 is placed on refrigeration pump aligns with rotor 34.
In above-mentioned traditional refrigeration pump, because being placed on the axial direction of refrigeration pump, stator 33 aligns with rotor 34, admit the apparent surface of eccentric part of the live axle 35 of thrust can not determine, thus must grinding or polishing to the apparent surface of eccentric part.In addition, because live axle 35 just is not activated in a direction, it also can vibrate sometimes, and this will cause noise.
Fig. 2 has illustrated disclosed traditional refrigeration pump among Japanese Patent Laid-Open Publication (not examination) No.3-233188.Shown in refrigeration pump comprise pump mechanism 41 and be used for the motor 42 of driven pump mechanism 41, wherein stator 43 aligns with rotor 44 at the axial direction of refrigeration pump, this is identical with refrigeration pump among Fig. 1.
Refrigeration pump among Fig. 2 also comprises more expensive lining 45 relatively, and described lining is arranged in the bearing 46, is used for supporting driving shaft 47 rotationally.
In refrigeration pump shown in Figure 2, using relatively in bearing 46, more expensive lining 45 causes cost to increase.Be used at lubricant oil under the situation of lubricating bearings 46, lubricant oil probably enters the refrigeration system of utilizing cooling table, and lubricating oil viscosity is attached to cooling table and has reduced heat conveyance performance.
Summary of the invention
The present invention is used to overcome above-mentioned disadvantage.
Correspondingly, a target of the present invention provides a kind of reliable refrigeration pump, the low cost manufacturing that also can be relatively low of described refrigeration pump noise level.
Other target of the present invention provides the high-performance cooler that adopts above-mentioned refrigeration pump.
In order to realize above-mentioned target, refrigeration pump according to the present invention comprises: can; Motor with stator and rotor, described stator is arranged on outside the can, and described rotor is arranged within the can; With the juxtaposed pump mechanism of motor; Be used for the rotatory force of rotor is transferred to the live axle of pump mechanism, wherein stator is than the close more pump mechanism of rotor placement.
In the operation process of refrigeration pump, this structure has produced thrust, described thrust is to promote live axle towards pump mechanism, and live axle can keep in touch at its surperficial and relative with it parts partially stabilizedly like this, and this just might provide a kind of peace and quiet reliable refrigeration pump.In addition, if only live axle is ground or polishes with relative parts contact surface partly, can obtain more cheap refrigeration pump relatively so.
Advantageously, the surface of live axle is by carburizing or nitriding, and this just might provide a kind of no oily refrigeration pump.Be used for the surface that the bearing of back shaft rotationally can have carburizing or nitriding.Under refrigeration pump does not have oil condition, can be avoided owing to enter the reduction of the heat conveyance performance that oil caused of refrigeration cycle, this just might provide high performance cooling unit.
Description of drawings
Above-mentioned and other target of the present invention and characteristics will become from the following explanation of preferred embodiment and with reference to accompanying drawing obviously, and wherein similar part uses similar reference character to represent, wherein:
Fig. 1 is the sectional view of traditional refrigeration pump;
Fig. 2 is the sectional view of another traditional refrigeration pump;
Fig. 3 is the sectional view according to refrigeration pump of the present invention; And
Fig. 4 is the refrigeration cycle of semiconductor cooling device, has wherein adopted refrigeration pump shown in Figure 3.
Embodiment
The present invention is based on June 10th, 2003 on the basis of No.2003-164986 that Japan submits to application, integral body is incorporated its content into as a reference herein.
Referring now to accompanying drawing, shown in Fig. 3 is refrigeration pump of the present invention, it comprises can 1, have stator 2 and rotor 4 motor and with the juxtaposed pump mechanism 5 of motor, can 2 is placed within it and be fixed to described pump mechanism.Stator 2 is placed on outside the can 1, and stator 4 is rigidly fixed to the live axle 3 that is arranged in the can 1.Live axle 3 has the major diameter part, and described part has opposing end surface 3a, 3b.
As shown in Figure 3, stator 2 is placed than rotor 4 more close pump mechanisms.More specifically, stator 2 at the central plane 2a of axial direction from rotor 4 in the central plane 4a of axial direction placed offset, like this former than the latter with the more close pump mechanism 5 of distance L.
The rotatory force of rotor 4 is transferred to pump mechanism 5 by live axle 3.Pump mechanism 5 comprises cylindrical bearing 7, a plurality of pump parts 8 and suction plate 6.Cylindrical bearing 7 both had been used for the bearing of rotational support live axle 3 also as the cylinder that limits pump chamber.The case-carbonizing of live axle 3 or nitriding, and the inside of refrigeration pump does not have oil.The surface of cylindrical bearing 7 can carburizing or nitriding, replaces live axle 3, and perhaps the both can carburizing or nitriding.
Fig. 4 has illustrated the refrigeration cycle in the semiconductor cooling device, has wherein used aforesaid no oily refrigeration pump.Semiconductor cooling device shown in Fig. 4 comprises: cooling table 21, be used to cool off the elements such as semiconductor element of high heating, and described element may distribute more heat in operation; Condenser 22; And not having oily refrigeration pump 23, all parts are one another in series and connect to limit refrigeration cycle.The inlet of the outlet of condenser 22 and cooling table 21 interconnects by the refrigeration pump 23 that is arranged on therebetween each other, and the inlet of the outlet of cooling table 21 and condenser 22 is connected to each other.
Refrigeration agent is filled in this refrigeration cycle.Condenser 22 is suitable for being cooled off by fan 24.
Cooling unit is designed such that liquid refrigerant at first 21 provides by there not being oily refrigeration pump 23 from condenser 22 towards cooling table.Provide the cooling table 21 of liquid refrigerant to absorb the high heating heat that semiconductor element produced like this, and in the process that absorbs heat, the variation from liquid refrigerant to gaseous refrigerant take place in cooling table 21.Gaseous refrigerant offers condenser 22 then, and by fan 24 coolings, the gaseous refrigerant in the condenser 22 undergoes phase transition and is converted to liquid refrigerant condenser so then.
According to said structure, because the axial middle plane 2a of stator 2 than the more close pump mechanism 5 of the axial middle plane 4a of rotor 4, when motor applies voltage, produces thrust to promote rotor 4 towards pump mechanism 5, as shown in Figure 3 as shown by arrow A.This thrust also promotes live axle 3 towards suction plate 6, and rotor 4 is rigidly fixed to live axle 3, and can stablizing with 6 maintenances of negative pressure plate than major diameter end face 3a partly of live axle 3 contacts like this.On the other hand, also under quite little pressure, contact or do not contact from the end face 3b than the major diameter part of negative pressure plate 6 live axle 3 far away with cylindrical bearing 7.
Correspondingly, have only the end face 3a than the major diameter part of live axle 3 to grind or to polish.That is, end face 3a far away has the precision higher than end face 3b from motor, thereby live axle is cheap.In addition, the noise that vibration caused owing to live axle 3 reduces.
In addition, because the case-carbonizing or the nitriding of live axle 3, the inside of refrigeration pump does not have oil, refrigeration agent and the heat-transmission coefficient between the object (being cooling table in the case) that is cooled reduced, described coefficient can reduce owing to the oil pollution of refrigeration cycle, thereby might prevent that cooling power from reducing.
Although with reference to accompanying drawing the present invention has been reduced detailed explanation by example, it should be noted that different changes herein and revise will be apparent for those of ordinary skill.Thus, unless such change and modification have departed from the spirit and scope of the present invention, they can think to be included among the claim.
Claims (5)
1. refrigeration pump comprises:
Can;
Motor, described motor have the stator that is arranged on the can outside and are arranged on the interior rotor of can;
With the juxtaposed pump mechanism of motor; And
Be used for the rotatory force of rotor is transferred to the live axle of pump mechanism,
Wherein stator is placed than the more close pump mechanism of rotor.
2. refrigeration pump according to claim 1 is characterized in that, described live axle has than the major diameter part, and described partly have first and second end faces respect to one another than major diameter, has higher precision away from first end face of motor than second end face.
3. refrigeration pump according to claim 2 is characterized in that the surface of described live axle is by carburizing or nitriding.
4. refrigeration pump comprises:
Can;
Motor, described motor have the stator that is arranged on the can outside and are arranged on the interior rotor of can;
With the juxtaposed pump mechanism of motor;
Be used for the rotatory force of rotor is transferred to the live axle of pump mechanism; And
Be used for the bearing of supporting driving shaft rotationally,
Wherein at least one live axle and bearing have carburizing or nitrided surface.
5. a refrigeration cycle cooling unit comprises arbitrary described refrigeration pump according to claim 1-4, and wherein refrigeration pump does not have oil.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003164986A JP4168844B2 (en) | 2003-06-10 | 2003-06-10 | Refrigerant pump and cooling device |
| JP2003164986 | 2003-06-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1573117A true CN1573117A (en) | 2005-02-02 |
Family
ID=33508828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200410033559.0A Pending CN1573117A (en) | 2003-06-10 | 2004-04-06 | Refrigerant pump and cooling device employing same |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20040253127A1 (en) |
| JP (1) | JP4168844B2 (en) |
| CN (1) | CN1573117A (en) |
| TW (1) | TW200506204A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101315080B (en) * | 2008-05-13 | 2011-09-07 | 深圳市雅尔典科技有限公司 | Full sealing type refrigerant fluid pump and its application in high-rise storied house refrigerating system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7800262B1 (en) * | 2009-05-05 | 2010-09-21 | John Leo Larson | Centrifugal drop fan and valve with sliding motor |
| US8513839B1 (en) * | 2009-05-05 | 2013-08-20 | John L Larson | Fan with damper |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2832800B2 (en) * | 1993-10-22 | 1998-12-09 | 日立建機株式会社 | Plain bearing assembly |
| JP2000011005A (en) * | 1998-06-17 | 2000-01-14 | Hitachi Ltd | Data analyzing method and its device and computer- readable recording medium recorded with data analytical program |
| JP3614694B2 (en) * | 1999-01-22 | 2005-01-26 | 松下電器産業株式会社 | Method and apparatus for applying pressure to both-end bearing structure of direct drive shaft of motor and hermetic compressor using them |
| US20040215522A1 (en) * | 2001-12-26 | 2004-10-28 | Eder Jeff Scott | Process optimization system |
| JP2003314469A (en) * | 2002-04-24 | 2003-11-06 | Matsushita Electric Ind Co Ltd | Refrigerant pump |
| US7426559B2 (en) * | 2002-05-09 | 2008-09-16 | International Business Machines Corporation | Method for sequential coordination of external database application events with asynchronous internal database events |
| US7490085B2 (en) * | 2002-12-18 | 2009-02-10 | Ge Medical Systems Global Technology Company, Llc | Computer-assisted data processing system and method incorporating automated learning |
| US20040128204A1 (en) * | 2002-12-27 | 2004-07-01 | Cihla Virgil F. | Systems for procuring products in a distributed system |
| US20040164961A1 (en) * | 2003-02-21 | 2004-08-26 | Debasis Bal | Method, system and computer product for continuously monitoring data sources for an event of interest |
-
2003
- 2003-06-10 JP JP2003164986A patent/JP4168844B2/en not_active Expired - Fee Related
-
2004
- 2004-03-31 TW TW093108867A patent/TW200506204A/en unknown
- 2004-03-31 US US10/814,712 patent/US20040253127A1/en not_active Abandoned
- 2004-04-06 CN CN200410033559.0A patent/CN1573117A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101315080B (en) * | 2008-05-13 | 2011-09-07 | 深圳市雅尔典科技有限公司 | Full sealing type refrigerant fluid pump and its application in high-rise storied house refrigerating system |
Also Published As
| Publication number | Publication date |
|---|---|
| TW200506204A (en) | 2005-02-16 |
| JP2005002827A (en) | 2005-01-06 |
| US20040253127A1 (en) | 2004-12-16 |
| JP4168844B2 (en) | 2008-10-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1210500C (en) | Oilless lubricating screw type compressor | |
| CN1098977C (en) | Turbo compressor | |
| CN101463807B (en) | Motor-driven compressor | |
| CN1161548C (en) | magnet pump | |
| US7147443B2 (en) | Electric compressor | |
| CN1219982C (en) | Turbine compressor | |
| US5142885A (en) | Method and apparatus for enhanced scroll stability in a co-rotational scroll | |
| EP2455627B1 (en) | Anti-abrasion apparatus and reciprocating compressor adopting the same | |
| CN1639466A (en) | A centrifugal compressor | |
| CN1140238A (en) | Scroll fluid machine and compressed gas-producing apparatus comprising the same | |
| CN1341810A (en) | Vortex compressor | |
| CN1646806A (en) | Centrifugal pump with switched reluctance motor drive | |
| CN1942670A (en) | Air pump | |
| CN1573117A (en) | Refrigerant pump and cooling device employing same | |
| CN100339597C (en) | Closed compressor | |
| JP3951880B2 (en) | Motor equipment | |
| CN1656318A (en) | Dual-shaft vacuum pump | |
| EP1328728A1 (en) | Rotary slant shaft type gas compressor with multi-stepped exhaust system | |
| CN105971875A (en) | Oil-free lubrication two-stage scroll compressor | |
| JP2006177231A (en) | Electric compressor | |
| CN1089874C (en) | Bearing arrangement | |
| EP0334646A1 (en) | Hysteresis magnet coupling for roots type pumps | |
| JPH0291489A (en) | Scroll fluid machine | |
| JP2005016379A (en) | Scroll type fluid machinery | |
| EP1580431A1 (en) | Electric internal gear pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |