CN100335782C - Electric compressor - Google Patents
Electric compressor Download PDFInfo
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- CN100335782C CN100335782C CNB2003101223403A CN200310122340A CN100335782C CN 100335782 C CN100335782 C CN 100335782C CN B2003101223403 A CNB2003101223403 A CN B2003101223403A CN 200310122340 A CN200310122340 A CN 200310122340A CN 100335782 C CN100335782 C CN 100335782C
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- 230000006835 compression Effects 0.000 claims abstract description 24
- 238000007906 compression Methods 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 230000006698 induction Effects 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 239000010687 lubricating oil Substances 0.000 claims 1
- 239000000696 magnetic material Substances 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 description 14
- 238000005755 formation reaction Methods 0.000 description 14
- 238000003825 pressing Methods 0.000 description 13
- 239000000314 lubricant Substances 0.000 description 9
- 238000001816 cooling Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 4
- 229910052779 Neodymium Inorganic materials 0.000 description 4
- 229910052796 boron Inorganic materials 0.000 description 4
- 230000005389 magnetism Effects 0.000 description 4
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 4
- 229910052761 rare earth metal Inorganic materials 0.000 description 4
- 229910001018 Cast iron Inorganic materials 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Images
Classifications
-
- 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
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
-
- 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
- F04B35/00—Piston 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
- F04B35/04—Piston 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
本发明提供一种总高低、高效且可靠性高的电动压缩机，该电动压缩机由以定子和转子组成的电动机部、被该电动机部驱动的压缩机构部、和收纳这些的密闭容器构成。压缩机构部具有包括压缩室和活塞的缸体，并由主轴承和副轴承两轴承支撑用于驱动该活塞的与转子直接连接的旋转轴。从而，能够防止旋转轴的倾斜，同时能够降低滑动损耗和噪音。
The present invention provides an electric compressor with low overall height, high efficiency and high reliability. The electric compressor is composed of a motor unit composed of a stator and a rotor, a compression mechanism unit driven by the motor unit, and an airtight container for accommodating them. The compression mechanism has a cylinder including a compression chamber and a piston, and supports a rotary shaft directly connected to a rotor for driving the piston by two bearings, a main bearing and a sub bearing. Thereby, inclination of the rotating shaft can be prevented, and sliding loss and noise can be reduced.
Description
Technical field
The present invention relates to a kind of motor compressor that is used on refrigerating equipment and the air-conditioning equipment etc.
Background technique
In recent years, for the motor compressor on the refrigerating plant that is used for home-use freezing refrigerated warehouse etc., in order to reduce power consumption, and promoted the lowering viscousity of its lubricant oil and because of adopting the high efficiency that transformer drives, syncmotor brings.In addition, in order to improve the volumetric efficiency of freezing-cooling storeroom, expect more small-sized compressor.
As existing motor compressor, in order to improve efficient, often improve stator and main bearing, drive the disclosed motor compressor of 2001-73948 communique as the spy of Japanese patent application.
Fig. 5 is the longitudinal section of this existing motor compressor.In Fig. 5, the seal container 1 of motor compressor, storing in the bottom has lubricant oil 12, and is accommodating the motor part 3 be made up of stator 13 and rotor 14 and by its compressor driven structure portion 2.
Secondly, below compression mechanical part 2 is elaborated.On the cylinder body (cylinder heak) 5 that is formed with the general cylindrical shape cylinder (cylinder) 7 that constitutes compression mechanical part 2, be provided with axle (rotatable support) running shaft 4 and with cylinder 7 almost at right angles, the bearing portion 6 of making by the aluminium based material of nonmagnetic material material.The running shaft 4 that possesses eccentric part 4a is inlaid in the bearing portion 6 and in order to fixed rotor 14.
The piston 9 that slides in cylinder 7 forms pressing chamber 10, and links with eccentric part 4a by the connecting rod 8 as connection set.Front end at eccentric part 4a is equipped with fuel supply line 11.
Next, below motor part 3 is elaborated.Motor part 3 is 2 utmost point induction motoies, its by the stator 13 that twines coiling in the stator core made from stacked electromagnetic steel plate and in the rotor core 15 made from stacked electromagnetic steel plate the rotor 14 of built-in permanent magnet 15b constitute.In addition, be provided with the chamber portion (bore) 16 of hollow in the end with compression mechanical part 2 subtends of rotor core 15, the inboard of the chamber portion 16 that is arranged on this hollow is extended by bearing portion 6.
Next existing reciprocating motor compressor about as above constituting carries out operational instruction.Be accompanied by the rotation of the rotor 14 of motor part 3, make running shaft 4 rotation, and the rotatablely moving of eccentric part 4a of running shaft 4 passed to piston 9 by connecting rod 8, and piston 9 to-and-fro motion in pressing chamber 10 thus.From the refrigerant gas of cooling system (do not have diagram) be inhaled into be compressed in the pressing chamber 10 after, the cooling system to refrigerating equipment and air-conditioning equipment etc. sprays continuously again.
In addition, the rotation of accompanying rotation axle 4 is installed on fuel supply line 11 rotation of running shaft 4 lower ends, and relies on the pumping action of its centrifugal force, smokes lubricant oil upward, and to each slide part fuel feeding such as bearing portion 6, cylinder 7, cylinder body 8 and piston 9 of compression mechanical part 2.
But, in above-mentioned existing formation, if on the space length of rotor 14 and stator 13, have skew, then the little side generation of space length further the power of rotor 14, promptly produce magnetic attraction.Particularly, when the permanent magnet 15b in being built in rotor core 15 is the strong permanent magnet of terres rares isodynamic, if greatly then this magnetic attraction is bigger and play a role for the deviation of above-mentioned space length.
Its result is fixed in the rotor 14 and is flush-mounted in running shaft 4 in the bearing portion 6 in 6 medium dips of bearing portion, produces an end in contact between bearing portion 6 and the running shaft 4.If be in running shaft 4 rotational slide in bearing portion 6 of a this end in contact state, the wearing and tearing of bearing portion 6 and running shaft 4 both sides' slip surface then can take place.
In addition, in other conventional examples of being put down in writing, a kind of main bearing end face of ferrous material and the nonoverlapping structure in compression mechanical part side end face of rotor core are disclosed in above-mentioned existing technology.At this moment, if keep the necessary bearing length of the bearing portion 6 of single bearing type, then the total length of running shaft 4 is elongated, and the distance of the center of gravity of rotor 14 and bearing portion 6 is also elongated thereupon, therefore, its shortcoming is to exist to wear and tear at bearing portion 6 and running shaft 4 both sides' slip surface.This be because betide magnetic attraction between rotor 14 and the stator 13 in bearing portion 6 with strong moment work, so the power that results from the end in contact between bearing portion 6 and the running shaft 4 is bigger.
Summary of the invention
The present invention makes for the problem that solves this type of conventional example, and its purpose is to provide a kind of efficient height and the high motor compressor of reliability.
Reciprocating motor compressor of the present invention has following formation.
Motor compressor comprises:
(a) by stator with coiling, have the motor part that the rotor of rotor core and permanent magnet is formed;
(b) by above-mentioned motor part compressor driven structure portion;
(c) storage lubricant oil is taken in the seal container of above-mentioned motor part and above-mentioned compressor structure portion simultaneously.
Above-mentioned compressor structure portion comprises:
(b-1) have the running shaft of eccentric axial portion, main shaft part and countershaft portion, above-mentioned main shaft part and above-mentioned countershaft portion clip above-mentioned eccentric axial portion and are configured in up and down on the same axle;
(b-2) possesses the cylinder body of pressing chamber;
(b-3) in above-mentioned cylinder body vertical with the axle center of above-mentioned pressing chamber and dispose, the main bearing of axle Zhi Shangshu main shaft part;
(b-4) be disposed at the supplementary bearing of above-mentioned cylinder body, axle Zhi Shangshu countershaft portion;
(b-5) pistons reciprocating in above-mentioned pressing chamber;
(b-6) connection set of above-mentioned piston of binding and above-mentioned eccentric axial portion.
And, above-mentioned permanent magnet is made by terres rares, said stator has a plurality of tooth portion, above-mentioned coiling is to be wrapped in direct coiling in the above-mentioned tooth portion by insulating component, above-mentioned motor part is configured in the below, above-mentioned compressor structure portion is configured in the top, above-mentioned motor part starts as induction motor when starting, in the time of near reaching synchronous rotation, pull in, carry out run-in synchronism
Description of drawings
Fig. 1 is the longitudinal section of the motor compressor of embodiments of the invention 1.
Fig. 2 is the longitudinal section of the motor compressor of embodiments of the invention 2.
Fig. 3 is the longitudinal section of the motor compressor of embodiments of the invention 3.
Fig. 4 is the longitudinal section of the motor compressor of embodiments of the invention 4.
Fig. 5 is the longitudinal section of the motor compressor of conventional example.
Concrete mode of execution
Below, with reference to accompanying drawing embodiments of the invention are described.
Fig. 1 is the longitudinal section of the motor compressor of embodiments of the invention 1.
As shown in Figure 1, in seal container 101, contain the motor part 103 of compression mechanical part 102 and this compression mechanical part of driving.
The refrigeration agent of enclosing seal container 101 is to serve as the low hydrocarbon series coolant of zero R134a or the R600a warmization coefficient (Glbal Warming Potential:GWP) that is representative etc. with the ozone layer destroying coefficient.And storing the viscosity that has an intermiscibility with refrigeration agent in seal container 101 is 5～10[cts] lubricant oil 112.
Next, compression mechanical part 102 is done following detailed description the in detail.Running shaft 104 has eccentric axial portion 117, main shaft part 116 and countershaft portion 118.Main shaft part 116 and countershaft portion 118 clip eccentric axial portion 117 with up and down coaxial shape configuration.Oil feeding mechanism 111, one ends that are formed on the running shaft 104 are communicated with in lubricant oil 112, and the other end connection and opening are in the upper end of running shaft 104.
Next, motor part 103 is done following detailed description the in detail.Motor part 103 is made up of stator 113 and rotor 114, is with 30[HZ], 50[HZ], 70[HZ], 80[HZ] the transformer drive motors that drives of a plurality of arbitrarily operating frequencys.Stator 113 has radial a plurality of tooth 113b of portion of formation on 113a unshakable in one's determination, simultaneously, implement directly coiling 113b by insulating component 113c in tooth portion, concentrates to twine to form motor.Rotor 114 is fixed on the main shaft part 116 of running shaft 104, possesses the permanent magnet 115a in rotor core of being built in 115.
Motor compressor about as above formation carries out following explanation to its operation.
If stator 113 is switched on, then rotor 114 driven rotary axles 104 rotations, the eccentric motion of eccentric shaft 117 passes to piston 109 by cylinder body 108, piston 109 to-and-fro motion in pressing chamber 110 thus.Thereby refrigerant gas is inhaled into from cooling system (not diagram) and is compressed in the pressing chamber, sprays to cooling system more afterwards.
In addition, rely on the oil feeding mechanism 111 that is formed on the running shaft 104, smoke lubricant oil 112, discharge from the upper end portion of running shaft 104.
At this, the permanent magnet 115a that is built in rotor core 115 is made by the strong material of terres rares isodynamic, and therefore, the part little in the distance of rotor 114 and stator 113 produces extremely strong magnetic attraction.
But, bear between this rotor 114 and the stator 113 magnetic attraction that takes place and during the inclined to one side load that brings at running shaft 104, the upper and lower end that is the angular direction with the central shaft with respect to the running shaft 104 of main bearing inwall in existing single shaft holds is that fulcrum bears inclined to one side load, otherwise, the structure of this duplex bearing, with the supplementary bearing opposition side end of main bearing inwall and the main bearing opposition side end that is the supplementary bearing inwall of angular direction with respect to the central shaft of running shaft 104 is that fulcrum bears inclined to one side load, and its length of support is 2 times from lengthening approximately.
This length of support from prolongation running shaft 104 is reduced in bearing portion medium dip angle, its result, the difficult end in contact that takes place can be avoided because stable efficient is kept in the slip loss that an end in contact is brought between bearing portion and running shaft 104.Simultaneously, the slip sound that produces because of an end in contact can be suppressed, the motor compressor that noise is low can be realized.In addition, to bear eccentric axial portion 117 (fulcrum) from the compressive load of piston 109 is that the center utilizes the load that is added in the two sides maintenance compressor operation up and down on the running shaft 104, therefore, with respect to the almost mean allocation load of this fulcrum, compare the reliability of the slide part that can improve running shaft 104 with the single support type that load only concentrates on one-sided bearing portion.
Have again, because wearing and tearing are lacked (cutting is few) and are born the load that the running shaft 104 in the compressor operation applies with large size, so the face pressure drop of main bearing 120, supplementary bearing 121 is low, holds the length that can shorten main bearing 120 than single shaft, can reduce the height overall of compressor.Have again, be accompanied by the viscous resistance that reduces to be reduced in slide part of sliding length, consequently can realize high efficiency.
Have again, for cylinder body 105 integrally formed main bearings 120, and make by the cast iron that belongs to ferrous material, rotor core 115 does not contact with main bearing 120, and the magnetic line of force that is built in the permanent 115a unshakable in one's determination in the rotor core 115 does not almost disturb with main bearing.Therefore, occur in the foucault current loss of main bearing portion hardly, can obtain high efficiency.
In addition, by transformer drive motor portion 103, when the correspondence load carried out running up of 70～80HZ, magnetic attraction strengthened, and the power that running shaft 104 is tilted strengthens.At this moment, become, therefore, can prevent the inclination of this running shaft 104, can make the reduction of slip loss simultaneously by main bearing 120 and the secondary dual bearing structure that holds both sides' bearing rotation supporting rotating shaft 104 of axle 121.Thereby, can keep high efficiency, can prevent simultaneously the end in contact that the inclination by running shaft brings, improve reliability.
In addition, when being carried out the such low-speed running of 30HZ by transformer drive motor portion 103, reason main bearing 120 and the secondary both sides' bearing that holds axle 121 constitute the duplex bearing of an axle running shaft 104 and can prevent from, the reduction of the loss of seeking to slide.Therefore, be 5～10[cts even put into the viscosity of lubricant oil 112] low-viscosity oil, also can obtain enough reliabilities.
Have, stator 113 has radial a plurality of tooth 113b of portion of formation on 113a unshakable in one's determination again, simultaneously, on the above-mentioned tooth 113b of portion, implements directly coiling 113d by insulating component 113c, therefore, does not have essential winding terminal on coiling distributes.Thereby the height overall of stator 113 and rotor 114 can reduce, and can further reduce the height overall of motor compressor.And, because the height overall of stator 113 and rotor 114 reduces, and therefore, seeks the homogenization of the spacing dimension of stator 113 and rotor 114 easily, consequently be difficult to produce magnetic attraction, can avoid because the increase of the input current that wearing and tearing bring and the increase of noise etc.
Also have, in the present embodiment, use connecting rod 108, also can be suitable for spherojoint and dog link connection sets such as (scotch yoke) as the connection set that links piston and eccentric shaft.
Fig. 2 is the longitudinal section of the motor compressor of embodiments of the invention 2.Also have, with the use prosign of embodiment's 1 same formation, and detailed.
In Fig. 2, motor part 203 is 2 utmost point syncmotors, and it is by constituting at stator 213 that twines coiling in the stator core of forming with stacked electromagnetic steel plate and rotor 214 that secondary conductor is set in the rotor core of forming with stacked electromagnetic steel plate 215.The built-in permanent magnet 215a that for example constitutes in the rotor core 215 by the strong magnetism body of the neodymium of rare earth element magnet, iron, boron system.And other formations are identical with embodiment 1.
Motor compressor about as above constituting carries out following explanation to its operation.
At this, the permanent magnet 215a that is built in the rotor core 215 is made of the strong material of terres rares isodynamic, so magnetic force is strong especially, extremely strong magnetic attraction takes place the part little in the distance of rotor 214 and stator 213.But, can avoid the problem points brought by strong magnetic attraction based on formation similarly to Example 1, consequently, can effectively utilize the high efficiency of syncmotor, high energy efficient can be obtained, the raising reliability can be prevented simultaneously because the end in contact that the inclination of running shaft brings.
Fig. 3 is the longitudinal section of the motor compressor of the embodiment of the invention 3.Also have, with the use prosign of embodiment's 1 same formation, and detailed.
As shown in Figure 3, in seal container 101, contain the motor part 303 of compression mechanical part 302 and this compressor of driving.
The cylinder body 305 that constitutes compression mechanical part 302 is made of cast iron, forms the pressing chamber 110 of general cylindrical shape, and stationary axle props up the main bearing 320 of main shaft part 116 of running shaft 104 and the supplementary bearing 121 of an axle countershaft portion 118 on cylinder body 305.
Motor compressor about as above formation carries out following explanation to its operation.
If stator 113 is switched on, then rotor 314 driven rotary axles 104 rotations, the eccentric motion of eccentric axial portion 117 is passed to piston 109 by connecting rod 108, piston 109 to-and-fro motion in pressing chamber 110 thus.Based on this, refrigerant gas is inhaled into from cooling system (not diagram) and is compressed in the pressing chamber 110, afterwards, sprays to cooling system again.In addition, rely on the oil feeding mechanism 111 that is formed on the running shaft 104, smoke lubricant oil 112, discharge from the upper end portion of running shaft 104.
At this, the permanent magnet 315a that is built in the rotor core 315 is made of the strong material of terres rares isodynamic, so magnetic force is strong especially, and the part little in the distance of rotor 314 and stator 113 produces extremely strong magnetic attraction.
If running shaft 104 is subjected to the inclined to one side load that betided the magnetic attraction between rotor and the stator and produced by this, then the upper and lower end that is the angular direction with the central shaft with respect to the running shaft 104 of main bearing inwall in existing single shaft holds is that fulcrum bears inclined to one side load, otherwise, this duplex bearing is to be that fulcrum bears inclined to one side load with the supplementary bearing opposition side end of main bearing inner arm and the main bearing opposition side end that is the supplementary bearing inwall of angular direction with respect to the central shaft of running shaft 104.This length of support is from holding much longer with respect to existing single shaft.And main bearing 320 extends in chamber portion 306 inboards, and therefore, its length of support is from longer.
This length of support from prolongation cause running shaft 104 to reduce in bearing portion medium dip angle, consequently, be difficult to take place an end in contact in bearing portion and 104 on running shaft, can avoid because the slip loss that brings of an end in contact.Thereby can keep stable high efficiency, simultaneously, can suppress the slip sound that produces owing to an end in contact, can realize the motor compressor that noise is low.
In addition, with carrying from the load that be the center be added in two sides maintenance compressor operation process up and down on the running shaft 104 of the eccentric axial portion 117 (fulcrum) of the compressive load of piston 109, therefore, with respect to the almost mean allocation load of this fulcrum, the single support type that only concentrates on one-sided bearing portion than load can improve the reliability of the slide part of running shaft 104.
At this moment, main bearing 320 is made of the nonmagnetic material material of aluminum alloy, and therefore, the magnetic line of force that is built in the permanent magnet 315a in the rotor core 315 foucault current can not take place in main bearing 320, therefore, the foucault current loss takes place hardly, can seek high efficiency.
In addition, by transformer drive motor portion 303, when carrying out the fast frequency running corresponding to load, magnetic attraction strengthens, and the power that running shaft 104 is tilted strengthens.At this moment, constitute the duplex bearing of rotation supporting rotating shaft 104 by main bearing 320 and the secondary both sides' bearing that holds axle 121, therefore, can prevent the inclination of this running shaft 104, seek the to slide reduction of loss, can keep high efficiency, can prevent simultaneously the end in contact that the inclination by running shaft brings, improve reliability.
Have, stator 113 has radial a plurality of tooth 113b of portion of formation on 113a unshakable in one's determination again, simultaneously, on the above-mentioned tooth 113b of portion, implements directly coiling 113d by insulating component 113c, therefore, does not have essential winding terminal on coiling distributes.Thereby the height overall of stator 113 and rotor 314 can reduce, and the height overall of motor compressor can control to lower.And, because the height overall of stator 113 and rotor 314 reduces, therefore, try to achieve the equalization of the spacing dimension of stator 113 and rotor 314 easily, consequently be difficult to take place magnetic attraction, can avoid because the input that wearing and tearing bring and the increase of noise etc.
Fig. 4 is the longitudinal section of the motor compressor of embodiments of the invention 4.Also have attached with embodiment's 3 same formations, detailed with prosign.
In Fig. 4, motor part 403 is 2 utmost point syncmotors, and it is by constituting at stator 213 that twines coiling in the stator core of forming with stacked electromagnetic steel plate and rotor 414 that secondary conductor is set in the rotor core of forming with stacked electromagnetic steel plate 415.The built-in permanent magnet 415a that for example constitutes in the rotor core 415 by the strong magnetism body of the neodymium of rare earth element magnet, iron, boron system.And other constitute the homomorphosis with embodiment 3.
Motor compressor about as above formation carries out following explanation to its operation.
Start as induction motor when motor part 403 starts, pull in, do run-in synchronism near synchronous revolution.At this, the permanent magnet 415a that is built in the rotor core 415 is made of the strong material of terres rares isodynamic, so magnetic force is strong especially, and extremely strong magnetic attraction takes place the part little in the distance of rotor 414 and stator 213.
But, can avoid the problem points brought by strong magnetic attraction based on formation similarly to Example 3, consequently, the high efficiency of syncmotor can be effectively utilized, high energy efficient can be obtained, simultaneously, can prevent the end in contact that the inclination owing to running shaft brings, improve reliability.
Claims (6)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003033377A JP2004245073A (en) | 2003-02-12 | 2003-02-12 | Electric compressor |
| JP2003033377 | 2003-02-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1521397A CN1521397A (en) | 2004-08-18 |
| CN100335782C true CN100335782C (en) | 2007-09-05 |
Family
ID=32984308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101223403A Expired - Fee Related CN100335782C (en) | 2003-02-12 | 2003-12-17 | Electric compressor |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20040191094A1 (en) |
| JP (1) | JP2004245073A (en) |
| KR (1) | KR20040073268A (en) |
| CN (1) | CN100335782C (en) |
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| JP4617656B2 (en) * | 2003-10-14 | 2011-01-26 | パナソニック株式会社 | Hermetic compressor |
| JP4429769B2 (en) * | 2004-03-16 | 2010-03-10 | パナソニック株式会社 | Hermetic compressor |
| JP2006183655A (en) * | 2004-10-14 | 2006-07-13 | Matsushita Electric Ind Co Ltd | Compressor, refrigerating device and refrigerator |
| JP2006183988A (en) * | 2004-10-14 | 2006-07-13 | Matsushita Electric Ind Co Ltd | Refrigerator |
| CN100427757C (en) * | 2004-11-24 | 2008-10-22 | 松下电器产业株式会社 | Hermetic compressor |
| US7866957B2 (en) * | 2004-11-24 | 2011-01-11 | Panasonic Corporation | Hermetic compressor |
| US9422930B2 (en) * | 2004-12-08 | 2016-08-23 | Panasonic Intellectual Property Management Co., Ltd. | Refrigerant compressor |
| CN2903467Y (en) * | 2004-12-08 | 2007-05-23 | 松下电器产业株式会社 | Refrigerant compressor |
| JP4710774B2 (en) * | 2005-11-09 | 2011-06-29 | 株式会社日立製作所 | Manufacturing method of polishing surface plate |
| KR100748538B1 (en) * | 2005-11-30 | 2007-08-13 | 엘지전자 주식회사 | Synchronous reluctance motor and compressor with same |
| JP4687634B2 (en) * | 2006-11-15 | 2011-05-25 | パナソニック株式会社 | Hermetic compressor |
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| JP5040488B2 (en) * | 2007-07-12 | 2012-10-03 | パナソニック株式会社 | Hermetic compressor |
| DE102007038432A1 (en) * | 2007-08-16 | 2009-02-19 | Danfoss Compressors Gmbh | Refrigerant compressor means |
| JP5326525B2 (en) * | 2008-11-28 | 2013-10-30 | パナソニック株式会社 | Compressor |
| BRPI0903956A2 (en) * | 2009-01-09 | 2010-11-23 | Aurelio Mayorca | process and equipment to improve efficiency of compressors and refrigerators |
| JP2012087711A (en) * | 2010-10-21 | 2012-05-10 | Panasonic Corp | Hermetic compressor |
| JP2012193926A (en) * | 2011-03-17 | 2012-10-11 | Sumitomo Heavy Ind Ltd | Cryogenic refrigerator |
| DE102013216700B4 (en) * | 2013-08-22 | 2022-01-27 | Siemens Mobility GmbH | Charging battery-capable road vehicles |
| US9518572B2 (en) * | 2014-02-10 | 2016-12-13 | Haier Us Appliance Solutions, Inc. | Linear compressor |
| JP6428739B2 (en) * | 2016-09-30 | 2018-11-28 | 株式会社富士通ゼネラル | Compressor |
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| CN1080696A (en) * | 1992-07-03 | 1994-01-12 | 三菱电机株式会社 | Sealed electric compressor with two cylinders and assembling method thereof |
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- 2003-02-12 JP JP2003033377A patent/JP2004245073A/en active Pending
- 2003-12-17 CN CNB2003101223403A patent/CN100335782C/en not_active Expired - Fee Related
- 2003-12-19 US US10/742,609 patent/US20040191094A1/en not_active Abandoned
- 2003-12-24 KR KR1020030096671A patent/KR20040073268A/en not_active Ceased
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| CN1080696A (en) * | 1992-07-03 | 1994-01-12 | 三菱电机株式会社 | Sealed electric compressor with two cylinders and assembling method thereof |
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Also Published As
| Publication number | Publication date |
|---|---|
| US20040191094A1 (en) | 2004-09-30 |
| CN1521397A (en) | 2004-08-18 |
| KR20040073268A (en) | 2004-08-19 |
| JP2004245073A (en) | 2004-09-02 |
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