CN101346548B - Compressor - Google Patents

Compressor Download PDF

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Publication number
CN101346548B
CN101346548B CN2006800491971A CN200680049197A CN101346548B CN 101346548 B CN101346548 B CN 101346548B CN 2006800491971 A CN2006800491971 A CN 2006800491971A CN 200680049197 A CN200680049197 A CN 200680049197A CN 101346548 B CN101346548 B CN 101346548B
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CN
China
Prior art keywords
mentioned
stator
compression unit
exhaust port
seal container
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CN2006800491971A
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Chinese (zh)
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CN101346548A (en
Inventor
守本光希
柳沢雅典
金山武弘
锅谷安一
宇治原梓
樋口顺英
森英树
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Daikin Industries Ltd
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Daikin Industries Ltd
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Publication of CN101346548A publication Critical patent/CN101346548A/en
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    • 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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/32—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movement defined in group F04C18/02 and relative reciprocation between the co-operating members
    • 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
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/008—Hermetic pumps
    • 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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/32—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movement defined in group F04C18/02 and relative reciprocation between the co-operating members
    • F04C18/322—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movement defined in group F04C18/02 and relative reciprocation between the co-operating members with vanes hinged to the outer member and reciprocating with respect to the outer member
    • 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
    • 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
    • F04C29/02—Lubrication; Lubricant separation
    • 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
    • F04C29/04—Heating; Cooling; Heat insulation
    • F04C29/045—Heating; Cooling; Heat insulation of the electric motor in hermetic pumps
    • 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
    • F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • 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
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/001—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of similar working principle

Abstract

A discharge port (340a) of a compressing element (2) is provided inside of the outer circumference plane of a stator (5) when viewed from the direction of the rotating axis (12a) of a shaft (12), and overlaps the stator (5) when viewed from the direction orthogonally intersecting the rotating axis (12a) of the shaft (12). Therefore, a cooling medium gas discharged from the compressing element (2) is permitted to flow mainly into a space inside the outer circumference plane of the stator (5).

Description

Compressor
Technical field
The present invention relates to the compressor that in for example air-conditioning or refrigerated warehouse etc., uses.
Background technique
In the past, had as compressor: seal container; Be configured in the compression unit in this seal container; And be configured in the above-mentioned seal container, drive the motor of above-mentioned compression unit via axle.Above-mentioned compression unit has the bearing of the above-mentioned axle of supporting, and this bearing has oily exhaust port, and this oil exhaust port will offer the outside that lubricant oil between above-mentioned bearing and the above-mentioned axle is discharged to above-mentioned bearing.Above-mentioned motor has rotor and stator, and this stator arrangement is at the radial outside (with reference to Japanese kokai publication hei 10-153188 communique) of this rotor.
But, in above-mentioned existing compressor, the lubricant oil of discharging from the above-mentioned oily exhaust port of above-mentioned bearing flows in space (outboard channel) between said stator and above-mentioned seal container and the space (inboard channel) between said stator and the above-mentioned rotor with the refrigerant gas of discharging in above-mentioned seal container from above-mentioned compression unit.
Therefore, the cooled dose of gas of lubricant oil that flow to the downstream side (upside) of above-mentioned motor with refrigerant gas hinders, and is difficult to by above-mentioned outboard channel and above-mentioned inboard channel, is difficult to return the upstream side (downside) of above-mentioned motor.
Summary of the invention
Therefore, problem of the present invention is to provide a kind of compressor, and this compressor can make the lubricant oil that flow to the downstream side of above-mentioned motor with refrigerant gas return the upstream side of above-mentioned motor efficiently.
In order to solve above-mentioned problem, compressor of the present invention is characterised in that this compressor has: seal container; Be configured in the compression unit in this seal container; And be configured in the above-mentioned seal container, drive the motor of above-mentioned compression unit via axle, above-mentioned motor has rotor and stator, this stator arrangement is at the radial outside of this rotor, with the space of the radially inner side of said stator as the following path of going to: the refrigerant gas and the lubricant oil in the above-mentioned seal container that are discharged in the above-mentioned seal container from above-mentioned compression unit are flowed with respect to the opposition side of above-mentioned motor to above-mentioned compression unit, on the other hand, with the space of the radial outside of said stator as following return path: the lubricant oil in the above-mentioned seal container is returned to above-mentioned compression unit side with respect to above-mentioned motor.
According to compressor of the present invention, because with the space of the radially inner side of said stator the path of going to as refrigerant gas and lubricant oil, on the other hand, with the space of the radial outside of said stator return path as the lubricant oil in the above-mentioned seal container, so, can make the lubricant oil that flow to the downstream side of above-mentioned motor with refrigerant gas return the upstream side of above-mentioned motor efficiently.
And, in the compressor of a mode of execution, it is characterized in that, above-mentioned compression unit has from the exhaust port of above-mentioned compression unit discharging refrigerant gas in above-mentioned seal container, observe from the running shaft direction of above-mentioned axle, the above-mentioned exhaust port of above-mentioned compression unit is positioned at the outer circumferential face position more in the inner part than said stator, and, from observing with the direction of the above-mentioned rotating shaft direct cross of above-mentioned axle, the above-mentioned exhaust port and the said stator of above-mentioned compression unit are overlapping.
Compressor according to this mode of execution, owing to observe from the running shaft direction of above-mentioned axle, the above-mentioned exhaust port of above-mentioned compression unit is positioned at the outer circumferential face position more in the inner part than said stator, and, from observing with the direction of the above-mentioned rotating shaft direct cross of above-mentioned axle, the above-mentioned exhaust port and the said stator of above-mentioned compression unit are overlapping, so, can make the refrigerant gas of discharging from above-mentioned compression unit mainly flow to outer circumferential face space more in the inner part than said stator.That is, can be with than the outer circumferential face space more in the inner part of said stator path as the mobile special use of refrigerant gas, will be than the outer circumferential face space more in the outer part of said stator the special-purpose path that returns as lubricant oil.
Therefore, can make the lubricant oil that flow to the downstream side (upside) of above-mentioned motor with refrigerant gas return the upstream side (downside) of above-mentioned motor efficiently, from refrigerant gas, separate.And, can cool off the heating part of said stator and above-mentioned rotor efficiently by refrigerant gas.
And in the compressor of a mode of execution, said stator has: stator body, and it comprises outstanding and a plurality of teeth that upwards arrange in week to radially inner side; And coil, it is wound on respectively on above-mentioned each tooth, does not reel and do not cross over a plurality of above-mentioned teeth.
According to the compressor of this mode of execution, because the above-mentioned coil of said stator is so-called concentrated winding, so can simply above-mentioned coil be reeled is arranged on the above-mentioned tooth.And, make refrigerant gas pass through can cool off said stator efficiently between the adjacent above-mentioned coil.
And, in the compressor of a mode of execution, it is characterized in that, above-mentioned compression unit has the support of the above-mentioned axle of supporting, this support has oily exhaust port, this oil exhaust port will offer the outside that lubricant oil between above-mentioned support and the above-mentioned axle is discharged to above-mentioned support, and said stator has: stator core; Be wound on the coil in this stator core; And be configured to than this coil more by the guide portion of radial outside, the lubricant oil that guide sections will be discharged from the above-mentioned oily exhaust port of above-mentioned support is directed to the radially inner side of said stator be discharged to refrigerant gas in the above-mentioned seal container from above-mentioned compression unit.
Compressor according to this mode of execution, because the lubricant oil that guide sections will be discharged from the above-mentioned oily exhaust port of above-mentioned support is directed to the radially inner side of said stator be discharged to refrigerant gas in the above-mentioned seal container from above-mentioned compression unit, so, can make the lubricant oil of discharging from above-mentioned oily exhaust port flow to the space of the radially inner side of said stator with refrigerant gas.That is, can be with the space of the radially inner side of said stator the special-purpose path of going to as lubricant oil and refrigerant gas, with the space of the radial outside of said stator the special-purpose path that returns as lubricant oil.
Therefore, can make the lubricant oil that flow to the downstream side (upside) of above-mentioned motor with refrigerant gas return the upstream side (downside) of above-mentioned motor efficiently, the pasta of oil groove portion that can prevent to be positioned at the upstream side (downside) of above-mentioned motor disconnects.And the lubricant oil that can flow by the radially inner side in said stator cools off the heating part of said stator and above-mentioned rotor efficiently.
And, in the compressor of a mode of execution, observe from the running shaft direction of above-mentioned axle, guide sections is positioned at the position of more leaning on radial outside than the above-mentioned oily exhaust port of above-mentioned support, and, from observing with the direction of the above-mentioned rotating shaft direct cross of above-mentioned axle, guide sections extends to the above-mentioned oily exhaust port of above-mentioned support and compares apart from said stator farther position unshakable in one's determination.
Compressor according to this mode of execution, owing to observe from the running shaft direction of above-mentioned axle, guide sections is positioned at the position of more leaning on radial outside than above-mentioned oily exhaust port, and, from observing with the direction of the above-mentioned rotating shaft direct cross of above-mentioned axle, guide sections extends to be compared with above-mentioned oily exhaust port apart from said stator farther position unshakable in one's determination, so, can make the lubricant oil of discharging from above-mentioned oily exhaust port flow to the space of the radially inner side of said stator reliably with refrigerant gas.
And in the compressor of a mode of execution, guide sections is a part that is clamped in the insulator between above-mentioned coil and the said stator iron core.
According to the compressor of this mode of execution, because guide sections is a part that is clamped in the insulator between above-mentioned coil and the said stator iron core, so, above-mentioned insulator can be also used as guide sections, can realize the minimizing of number of components.
And in the compressor of a mode of execution, the said stator iron core has outstanding and a plurality of teeth that upwards arrange in week to radially inner side, and above-mentioned coil is wound on respectively on above-mentioned each tooth, does not reel and do not cross over a plurality of above-mentioned teeth.
According to the compressor of this mode of execution, because the above-mentioned coil of said stator is so-called concentrated winding, so can simply above-mentioned coil be reeled is arranged on the above-mentioned tooth.And, make lubricant oil pass through can cool off said stator efficiently between the adjacent above-mentioned coil with refrigerant gas.
According to compressor of the present invention, because with the space of the radially inner side of said stator the path of going to as refrigerant gas and lubricant oil, on the other hand, with the space of the radial outside of said stator return path as the lubricant oil in the above-mentioned seal container, so, can make the lubricant oil that flow to the downstream side of above-mentioned motor with refrigerant gas return the upstream side of above-mentioned motor efficiently.
According to compressor of the present invention, owing to observe from the running shaft direction of above-mentioned axle, the above-mentioned exhaust port of above-mentioned compression unit is positioned at the outer circumferential face position more in the inner part than said stator, and from observing with the direction of the above-mentioned rotating shaft direct cross of above-mentioned axle, the above-mentioned exhaust port and the said stator of above-mentioned compression unit are overlapping, so, can separate lubricant oil efficiently, and, cool motors efficiently.
According to compressor of the present invention, because the lubricant oil that guide sections will be discharged from the above-mentioned oily exhaust port of above-mentioned support is directed to the radially inner side of said stator be discharged to refrigerant gas in the above-mentioned seal container from above-mentioned compression unit, so, can prevent that the pasta of above-mentioned oil groove portion from disconnecting.
Description of drawings
Fig. 1 is the longitudinal section that the 1st mode of execution of compressor of the present invention is shown.
Fig. 2 is near the sectional elevation of motor of compressor.
Fig. 3 is the plan view of the major component of compressor.
Fig. 4 is the longitudinal section that the 2nd mode of execution of compressor of the present invention is shown.
Fig. 5 is the plan view of the major component of compressor.
Fig. 6 is near the sectional elevation of motor of compressor.
Embodiment
Below, describe the present invention in detail according to illustrated mode of execution.
(the 1st mode of execution)
Fig. 1 is the longitudinal section that the 1st mode of execution of compressor of the present invention is shown.This compressor has: seal container 1; Be configured in the compression unit 2 in this seal container 1; And motor 3, it is configured in the above-mentioned seal container 1, drives above-mentioned compression unit 2 via axle 12.This compressor is the rotary compressor of so-called high-pressure dome type, in above-mentioned seal container 1, above-mentioned compression unit 2 is configured in the bottom, and above-mentioned motor 3 is configured in top.
The suction pipe 11 that is used to suck refrigerant gas is installed on above-mentioned seal container 1, on this suction pipe 11, is connecting gas receiver (accumulator) 10.That is, above-mentioned compression unit 2 sucks refrigerant gas by above-mentioned suction pipe 11 from above-mentioned gas receiver 10.
This refrigerant gas is by obtaining constituting with this compressor to control as not shown condenser, expansion mechanism, the vaporizer of the air conditioner of an example of refrigeration system.This refrigerant gas for example is carbon dioxide, R410A or R22.
Its inside that is full of above-mentioned seal container 1 is discharged and made to the discharge gas of the High Temperature High Pressure that above-mentioned compressor will have been compressed from above-mentioned compression unit 2, after above-mentioned motor 3 having been carried out cooling, is discharged to the outside from discharge tube 13.Accumulate the bottom of the high-pressure area in above-mentioned seal container 1 lubricant oil 9.
As depicted in figs. 1 and 2, above-mentioned motor 3 has rotor 6 and stator 5, and this stator 5 is configured in the radial outside of this rotor 6 across air gap.
Above-mentioned rotor 6 has rotor subject 610 and the magnet 620 that is embedded in this rotor subject 610.Above-mentioned rotor subject 610 is a drum, for example is made of stacked electromagnetic steel plate.Above-mentioned axle 12 is installed in the hole portion of the central authorities of above-mentioned rotor subject 610.Above-mentioned magnet 620 is flat permanent magnet.6 above-mentioned magnet 620 were upwards arranged with equally spaced center angle in the week of above-mentioned rotor subject 610.
Said stator 5 has stator body 510 and the coil 520 that is wound on this stator body 510.In addition, in Fig. 2, omit the part of above-mentioned coil 520 and describe.
Said stator main body 510 for example is fabricated from iron, in the above-mentioned seal containers 1 of embedding such as shrink fit.Said stator main body 510 has annulus 511 and 9 teeth 512, and described tooth 512 is given prominence to and equally spaced arranged on circumferentially to radially inner side from the inner peripheral surface of this annulus 511.
Above-mentioned coil 520 is wound on respectively on above-mentioned each tooth 512, does not reel and do not cross over a plurality of above-mentioned teeth 512, is so-called concentrated winding.
Insulator 530 is installed on said stator main body 510.This insulator 530 is configured in respectively on the axial both ends of the surface of said stator main body 510, is reeled by above-mentioned coil 520 with said stator main body 510.In addition, in Fig. 2, omit above-mentioned insulator 530 and describe.
Above-mentioned insulator 530 for example is made of the resin material of good heat resistances such as liquid-crystalline polymer (LCP), polybutylene terephthalate (PBT), polyphenylene sulfide (PPS), polyimide or polyester.Observe from the axial 12a of above-mentioned axle 12, above-mentioned insulator 530 has the surrounding wall portion 531 of the radial outside that is configured in above-mentioned coil 520.This surrounding wall portion 531 for example forms circumferentially has the ring-type of otch at regular intervals.
Compare with the end face (being coil end) of the above-mentioned running shaft 12a direction of above-mentioned coil 520, the end face of the above-mentioned running shaft 12a direction of above-mentioned surrounding wall portion 531 extends to apart from the farther position of the said stator main body 510 of above-mentioned running shaft 12a direction.
The electromagnetic force that above-mentioned motor 3 produces on said stator 5 by making electric current flow through above-mentioned coil 520 makes above-mentioned rotor 6 with above-mentioned axle 12 rotations, drives above-mentioned compression unit 2 via this axle 12.
Above-mentioned motor 3 is so-called 6 utmost points, 9 grooveds.The electromagnetic force that produces on said stator 5 by making electric current flow through above-mentioned coil 520 makes above-mentioned rotor 6 with above-mentioned axle 12 rotations.
Above-mentioned compression unit 2 has from the top down successively along the running shaft of above-mentioned axle 12: the end plate member 50 of upside; The 1st cylinder 121; Middle end plate member 70; The 2nd cylinder 221; And the end plate member 60 of downside.
The end plate member 50 of above-mentioned upside and the end plate member 70 of above-mentioned centre are installed in the opening end up and down of above-mentioned the 1st cylinder 121 respectively.The end plate member 70 of above-mentioned centre and the end plate member 60 of above-mentioned downside are installed in the opening end up and down of above-mentioned the 2nd cylinder 221 respectively.
Form the 1st cylinder chamber 122 by the end plate member 50 of above-mentioned the 1st cylinder 121, above-mentioned upside and the end plate member 70 of above-mentioned centre.Form the 2nd cylinder chamber 222 by the end plate member 60 of above-mentioned the 2nd cylinder 221, above-mentioned downside and the end plate member 70 of above-mentioned centre.
The boss part 52 that the end plate member 50 of above-mentioned upside has discoideus main part 51 and is provided with above the mediad of this main part 51.Aforementioned body portion 51 and above-mentioned boss part 52 are connected by above-mentioned axle 12.In aforementioned body portion 51, be provided with the exhaust port 51a that is communicated with above-mentioned the 1st cylinder chamber 122.
Expulsion valve 131 is installed in the aforementioned body portion 51 in the mode that is positioned at the opposition side of above-mentioned the 1st cylinder 121 with respect to aforementioned body portion 51.This expulsion valve 131 for example is a leaf valve, and above-mentioned exhaust port 51a is opened and closed.
In aforementioned body portion 51,, the 1st sound proof housing 140 of cup-shaped is installed in the mode that covers above-mentioned expulsion valve 131 at the opposition side of above-mentioned the 1st cylinder 121.The 1st sound proof housing 140 is fixed in the aforementioned body portion 51 by (bolt etc.) fixed component.Above-mentioned the 1st sound proof housing 140 is connected by above-mentioned boss part 52.
End plate member 50 by above-mentioned the 1st sound proof housing 140 and above-mentioned upside forms the 1st anechoic room 142.Above-mentioned the 1st anechoic room 142 and above-mentioned the 1st cylinder chamber 122 are communicated with via above-mentioned exhaust port 51a.
The boss part 62 that the end plate member 60 of above-mentioned downside has discoideus main part 61 and is provided with below the mediad of this main part 61.Aforementioned body portion 61 and above-mentioned boss part 62 are connected by above-mentioned axle 12.In aforementioned body portion 61, be provided with (not shown) exhaust port that is communicated with above-mentioned the 2nd cylinder chamber 222.
(not shown) expulsion valve is installed in aforementioned body portion 61, and this expulsion valve is positioned at the opposition side of above-mentioned the 2nd cylinder 221 with respect to aforementioned body portion 61, this expulsion valve opens and closes above-mentioned exhaust port.
In aforementioned body portion 61,, flat the 2nd sound proof housing 240 of straight line shape is installed in the mode that covers above-mentioned expulsion valve at the opposition side of above-mentioned the 2nd cylinder 221.The 2nd sound proof housing 240 is fixed in the aforementioned body portion 61 by (bolt etc.) fixed component.Above-mentioned the 2nd sound proof housing 240 is connected by above-mentioned boss part 62.
End plate member 60 by above-mentioned the 2nd sound proof housing 240 and above-mentioned downside forms the 2nd anechoic room 242.Above-mentioned the 2nd anechoic room 242 and above-mentioned the 2nd cylinder chamber 222 are communicated with via above-mentioned exhaust port.
On above-mentioned the 1st sound proof housing 140,, the 3rd sound proof housing 340 of cup-shaped is installed in the mode that covers the 1st sound proof housing 140 at the opposition side of the end plate member 50 of above-mentioned upside.Form the 3rd anechoic room 342 by above-mentioned the 1st sound proof housing 140 and above-mentioned the 3rd sound proof housing 340.
Above-mentioned the 1st anechoic room 142 and above-mentioned the 3rd anechoic room 342 are communicated with by (not shown) hole portion that is formed on above-mentioned the 1st sound proof housing 140.
Above-mentioned the 2nd anechoic room 242 and above-mentioned the 3rd anechoic room 342 are communicated with by (not shown) hole portion on the end plate member 50 of the end plate member 60 that is formed on above-mentioned downside, above-mentioned the 2nd cylinder 221, the end plate member 70 of above-mentioned centre, above-mentioned the 1st cylinder 121 and above-mentioned upside.
The outside of above-mentioned the 3rd anechoic room 342 and above-mentioned the 3rd sound proof housing 340 is communicated with by the exhaust port 340a that is formed on above-mentioned the 3rd sound proof housing 340.That is, above-mentioned compression unit 2 is from above-mentioned exhaust port 340a discharging refrigerant gas in above-mentioned seal container 1.
Observe from the direction of above-mentioned 12 running shaft 12a, above-mentioned exhaust port 340a is positioned at the outer circumferential face position more in the inner part than said stator 5, and from observing with the direction of the above-mentioned running shaft 12a quadrature of above-mentioned axle 12, above-mentioned exhaust port 340a and said stator 5 are overlapping.That is, above-mentioned exhaust port 340a is than the more close radially inner side of lower end surface 531a and the more close upside of the above-mentioned surrounding wall portion 531 of above-mentioned insulator 530.
Above-mentioned end plate member 50,60,70, above-mentioned cylinder 121,221 and above-mentioned sound proof housing 140,240,340 are fixing integratedly by fixed components such as bolts.The end plate member 50 of the above-mentioned upside of above-mentioned compression unit 2 waits by welding and is installed on the above-mentioned seal container 1.
One overhang bracket of above-mentioned axle 12 is on the end plate member 60 of the end plate member 50 of above-mentioned upside and above-mentioned downside.That is, above-mentioned axle 12 is a cantilever.One end (supporting distolateral) of above-mentioned axle 12 enters the inside of above-mentioned the 1st cylinder chamber 122 and above-mentioned the 2nd cylinder chamber 222.
On above-mentioned axle 12, be provided with the 1st cam pin 126 in the mode that is positioned at above-mentioned the 1st cylinder chamber 122.The 1st cam pin 126 and the 1st roller 127 are chimeric.The 1st roller 127 is configured in above-mentioned the 1st cylinder chamber 122 and can utilizes the revolution motion of the 1st roller 127 to carry out compression around the central shaft revolution of above-mentioned the 1st cylinder chamber 122.
On above-mentioned axle 12, be provided with the 2nd cam pin 226 in the mode that is positioned at above-mentioned the 2nd cylinder chamber 222.The 2nd cam pin 226 and the 2nd roller 227 are chimeric.The 2nd roller 227 is configured in above-mentioned the 2nd cylinder chamber 222 and can utilizes the revolution motion of the 2nd roller 227 to carry out compression around the central shaft revolution of above-mentioned the 2nd cylinder chamber 222.
Above-mentioned the 1st cam pin 126 and above-mentioned the 2nd cam pin 226 are positioned at stagger 180 ° position of running shaft with respect to above-mentioned axle 12.
The compression of above-mentioned the 1st cylinder chamber 122 then, is described.
As shown in Figure 3, utilize the blade 128 that is arranged on integratedly on above-mentioned the 1st roller 127 to separate in above-mentioned the 1st cylinder chamber 122.That is, about the chamber on the right side of above-mentioned blade 128, above-mentioned suction pipe 11 forms the suction chamber (low pressure chamber) 123 of refrigerant gas at the internal surface opening of above-mentioned the 1st cylinder chamber 122.On the other hand, about the chamber in the left side of above-mentioned blade 128, (shown in Figure 1) above-mentioned exhaust port 51a forms the discharge chamber (hyperbaric chamber) 124 of refrigerant gas at the internal surface opening of above-mentioned the 1st cylinder chamber 122.
Half-terete lining 125,125 is close to the two sides of above-mentioned blade 128, to seal.Above-mentioned lining 125,125 remains on above-mentioned the 1st cylinder 121.That is, above-mentioned blade 128 is bearing on above-mentioned the 1st cylinder 121.Utilize above-mentioned lubricant oil 9 to be lubricated between above-mentioned blade 128 and the above-mentioned lining 125,125 and between above-mentioned lining 125 and above-mentioned the 1st cylinder 121.
And above-mentioned the 1st cam pin 126 carries out off-centre with above-mentioned axle 12 and rotates, and above-mentioned the 1st roller 127 that is entrenched on above-mentioned the 1st cam pin 126 revolves round the sun in the tangent mode of the inner peripheral surface of the outer circumferential face of the 1st roller 127 and above-mentioned the 1st cylinder chamber 122.
Be accompanied by the revolution of above-mentioned the 1st roller 127 in above-mentioned the 1st cylinder chamber 122, above-mentioned blade 128 utilizes above-mentioned lining 125,125 to keep the action of advancing and retreat of the bi-side of these blades 128.So, be drawn into the above-mentioned suction chamber 123 from the refrigerant gas of above-mentioned suction pipe 11, and in above-mentioned discharge chamber 124, compress and become high pressure low pressure, then, discharge the refrigerant gas of high pressure from (shown in Figure 1) above-mentioned exhaust port 51a.
Then, as shown in Figure 1, the refrigerant gas of discharging from above-mentioned exhaust port 51a is discharged to the outside of above-mentioned the 3rd sound proof housing 340 via above-mentioned the 1st anechoic room 142 and above-mentioned the 3rd anechoic room 342 from above-mentioned exhaust port 340a.
On the other hand, the compression of above-mentioned the 2nd cylinder chamber 222 is also same with the compression of above-mentioned the 1st cylinder chamber 122.Promptly, be drawn into above-mentioned the 2nd cylinder chamber 222 from the refrigerant gas of another above-mentioned suction pipe 11 low pressure, in above-mentioned the 2nd cylinder chamber 222, utilize the revolution motion of above-mentioned the 2nd roller 227 that refrigerant gas is compressed, via above-mentioned the 2nd anechoic room 242 and above-mentioned the 3rd anechoic room 342, the refrigerant gas of this high pressure is discharged to the outside of above-mentioned the 3rd sound proof housing 340.
The compression of the compression of above-mentioned the 1st cylinder chamber 122 and above-mentioned the 2nd cylinder chamber 222 is in 180 ° the phase place that staggers.
Compressor according to said structure, observe from the direction of above-mentioned 12 above-mentioned running shaft 12a, the above-mentioned exhaust port 340a of above-mentioned compression unit 2 is positioned at the outer circumferential face position more in the inner part than said stator 5, and, from observing with the direction of the above-mentioned running shaft 12a quadrature of above-mentioned axle 12, the above-mentioned exhaust port 340a and the said stator 5 of above-mentioned compression unit 2 are overlapping, therefore, the refrigerant gas of discharging from above-mentioned compression unit 2 is mainly flow to than in the close inboard space of the outer circumferential face of said stator 5.
Promptly, can with than the outer circumferential face of said stator 5 near the go to special-purpose path of inboard space (hereinafter referred to as inboard channel) as refrigerant gas and lubricant oil 9, will be than the outer circumferential face of said stator 5 near the space (hereinafter referred to as outboard channel) in the outside the special-purpose path that returns as above-mentioned lubricant oil 9.In a word, with the space of the radially inner side of said stator 5 as the following path of going to: the refrigerant gas and the lubricant oil in the above-mentioned seal container 1 of discharging in above-mentioned seal container 1 from above-mentioned compression unit 2 are flowed with respect to the opposition side of above-mentioned motor 3 to above-mentioned compression unit 2, on the other hand, with the space of the radial outside of said stator 5 as following return path: the lubricant oil in the above-mentioned seal container 1 is returned to above-mentioned compression unit 2 sides with respect to above-mentioned motor 3.
Therefore, can make the above-mentioned lubricant oil 9 that flow to the downstream side (upside) of above-mentioned motor 3 with refrigerant gas return the upstream side (downside) of above-mentioned motor 3 efficiently, can from refrigerant gas, isolate above-mentioned lubricant oil 9 via above-mentioned outboard channel.And, can utilize the heating part that cools off said stator 5 and above-mentioned rotor 6 by the refrigerant gas of above-mentioned inboard channel efficiently.
And, because the part that above-mentioned surrounding wall portion 531 is above-mentioned insulators 530, so, can guide flowing of the refrigerant gas of discharging from above-mentioned compression unit 2 by above-mentioned insulator 530, therefore, do not need new parts, can prevent the increase of number of components.
And the above-mentioned coil 520 of said stator 5 is so-called concentrated windings, so can simply above-mentioned coil 520 be reeled is arranged on the above-mentioned tooth 512.And, make refrigerant gas pass through can cool off said stator 5 efficiently between the adjacent above-mentioned coil 520,520.
In addition, the invention is not restricted to above-mentioned mode of execution.For example, as above-mentioned compression unit 2, also can be roller with blade separate rotary-type.As above-mentioned compression unit 2, except rotary-type, also can use Scrawl or Reciprocatory.
As above-mentioned compression unit 2, also can be single cylinder type with a cylinder chamber.It also can be the one-level silencing apparatus that has omitted above-mentioned the 3rd sound proof housing 340.At this moment, as long as the above-mentioned exhaust port of above-mentioned compression unit 2 is than the close upside in the lower end surface of said stator 5.
Above-mentioned surrounding wall portion 531 also can not be the part of above-mentioned insulator 530, but the part of miscellaneous part perhaps, also can be formed on the said stator iron core 510.
Also above-mentioned coil 520 can be formed and cross over the so-called Distributed Winding that above-mentioned a plurality of tooth 512 is reeled.The increase and decrease of the quantity of above-mentioned tooth 512 and above-mentioned magnet 620 is freely.
(the 2nd mode of execution)
Fig. 4 illustrates the longitudinal section of the 2nd mode of execution of compressor of the present invention.This compressor has: seal container 1001; Be configured in the compression unit 1002 in this seal container 1001; And motor 1003, it is configured in the above-mentioned seal container 1001, drives above-mentioned compression unit 1002 via axle 1012.
This compressor is the rotary compressor of so-called vertical high-pressure dome type, in above-mentioned seal container 1001, above-mentioned compression unit 1002 is configured in the bottom, and above-mentioned motor 1003 is configured in top.By the rotor 1006 of this motor 1003, drive above-mentioned compression unit 1002 via above-mentioned axle 1012.
Above-mentioned compression unit 1002 sucks refrigerant gas by suction pipe 1011 from gas receiver 1010.This refrigerant gas is by obtaining constituting with this compressor to control as not shown condenser, expansion mechanism, the vaporizer of the air conditioner of an example of refrigeration system.This refrigerant gas for example is carbon dioxide, R410A or R22.
The refrigerant gas of the High Temperature High Pressure that above-mentioned compressor will have been compressed is from above-mentioned compression unit 1002 discharges and make it be full of the inside of seal container 1001, and, make this refrigerant gas by the stator 1005 of above-mentioned motor 1003 and the gap between the above-mentioned rotor 1006, after above-mentioned motor 1003 carried out cooling, be discharged to the outside from the discharge tube 1013 of the upside that is arranged on above-mentioned motor 1003.
The bottom of the high-pressure area in above-mentioned seal container 1001 is formed with the oil groove portion 1009 that has accumulated lubricant oil.This lubricant oil is by being arranged on (not shown) the oily path in the above-mentioned axle 1012, moves to the slide part of the bearing etc. of above-mentioned compression unit 1002 and above-mentioned motor 1003 from above-mentioned oil groove portion 1009, and this slide part is lubricated.This lubricant oil for example is (polyethyleneglycol or polypropylene glycol etc.) polyglycols oil, ether oil, ester oil, oil.As above-mentioned oily path, be arranged on above-mentioned axle 1012 outer circumferential face spiral chute or be arranged on the hole portion of the inside of above-mentioned axle 1012.
Above-mentioned compression unit 1002 has: be installed in the cylinder 1021 on the internal surface of above-mentioned seal container 1001; And be installed in the end plate member 1050 of upside of opening end up and down of this cylinder 1021 and the end plate member 1060 of downside respectively.Form cylinder chamber 1022 by the end plate member 1050 of above-mentioned cylinder 1021, above-mentioned upside and the end plate member 1060 of above-mentioned downside.
The boss part 1052 that the end plate member 1050 of above-mentioned upside has discoideus main part 1051 and is provided with above the mediad of this main part 1051.Aforementioned body portion 1051 and above-mentioned boss part 1052 are connected by above-mentioned axle 1012.
The end plate member 1050 of above-mentioned upside is an example of the support of the above-mentioned axle 1012 of supporting.This end plate member 1050 has oily exhaust port 1050a.This oil exhaust port 1050a will offer the outside that lubricant oil between above-mentioned end plate member 1050 and the above-mentioned axle 1012 is discharged to above-mentioned end plate member 1050 via (not shown) above-mentioned oily path.Particularly, above-mentioned oily exhaust port 1050a is formed on the upper-end surface of above-mentioned boss part 1052, is the space between above-mentioned axle 1012 outer circumferential faces and above-mentioned boss part 1052 inner peripheral surfaces.
In aforementioned body portion 1051, be provided with the exhaust port 1051a that is communicated with above-mentioned cylinder chamber 1022.Expulsion valve 1031 is installed in the aforementioned body portion 1051 in the mode that is positioned at the opposition side of above-mentioned cylinder 1021 with respect to aforementioned body portion 1051.This expulsion valve 1031 for example is a leaf valve, and above-mentioned exhaust port 1051a is opened and closed.
In aforementioned body portion 1051,, the sound proof housing 1040 of cup-shaped is installed in the mode that covers above-mentioned expulsion valve 1031 at the opposition side of above-mentioned cylinder 1021.This sound proof housing 1040 is fixed in the aforementioned body portion 1051 by (bolt etc.) fixed component 1035.Above-mentioned sound proof housing 1040 is connected by above-mentioned boss part 1052.
End plate member 1050 by above-mentioned sound proof housing 1040 and above-mentioned upside forms anechoic room 1042.Above-mentioned anechoic room 1042 and above-mentioned cylinder chamber 1022 are communicated with via above-mentioned exhaust port 1051a.
Above-mentioned sound proof housing 1040 has hole portion 1043.This hole portion 1043 is communicated with the outside of above-mentioned anechoic room 1042 and above-mentioned sound proof housing 1040.
The boss part 1062 that the end plate member 1060 of above-mentioned downside has discoideus main part 1061 and is provided with below the mediad of this main part 1061.Aforementioned body portion 1061 and above-mentioned boss part 1062 are connected by above-mentioned axle 1012.
In a word, an overhang bracket of above-mentioned axle 1012 is on the end plate member 1060 of the end plate member 1050 of above-mentioned upside and above-mentioned downside.That is, above-mentioned axle 1012 is a cantilever.One end (supporting distolateral) of above-mentioned axle 1012 enters the inside of above-mentioned cylinder chamber 1022.
Supporting at above-mentioned axle 1012 is distolateral, is provided with cam pin 1026 in the mode of the above-mentioned cylinder chamber 1022 that is positioned at above-mentioned compression unit 1002 sides.This cam pin 1026 is chimeric with roller 1027.This roller 1027 is configured to and can revolves round the sun in above-mentioned cylinder chamber 1022, utilizes the revolution motion of this roller 1027 to carry out compression.
In other words, an end of above-mentioned axle 1012 utilizes the shell 1007 of above-mentioned compression unit 1002 to be bearing in the both sides of above-mentioned cam pin 1026.This shell 1007 comprises the end plate member 1050 of above-mentioned upside and the end plate member 1060 of above-mentioned downside.
The compression of above-mentioned cylinder chamber 1022 then, is described.
As shown in Figure 5, utilize the blade 1028 that is arranged on integratedly on the above-mentioned roller 1027 to separate in the above-mentioned cylinder chamber 1022.That is, about the chamber on the right side of above-mentioned blade 1028, above-mentioned suction pipe 1011 forms suction chamber (low pressure chamber) 1022a at the internal surface opening of above-mentioned cylinder chamber 1022.On the other hand, about the chamber in the left side of above-mentioned blade 1028, (shown in Figure 4) above-mentioned exhaust port 1051a forms and discharges chamber (hyperbaric chamber) 1022b at the internal surface opening of above-mentioned cylinder chamber 1022.
Half- terete lining 1025,1025 is close to the two sides of above-mentioned blade 1028, to seal.Utilize above-mentioned lubricant oil to be lubricated between above-mentioned blade 1028 and the above-mentioned lining 1025,1025.
And above-mentioned cam pin 1026 carries out off-centre with above-mentioned axle 1012 and rotates, and the above-mentioned roller 1027 that is entrenched on the above-mentioned cam pin 1026 revolves round the sun in the tangent mode of the inner peripheral surface of the outer circumferential face of this roller 1027 and above-mentioned cylinder chamber 1022.
Be accompanied by the revolution of above-mentioned roller 1027 in above-mentioned cylinder chamber 1022, above-mentioned blade 1028 utilizes above-mentioned lining 1025,1025 to keep the action of advancing and retreat of the bi-side of these blades 1028.So, be drawn into the above-mentioned suction chamber 1022a from the refrigerant gas of above-mentioned suction pipe 1011, and in above-mentioned discharge chamber 1022b, compress and become high pressure low pressure, then, discharge the refrigerant gas of high pressure from (shown in Figure 4) above-mentioned exhaust port 1051a.
Then, as shown in Figure 4, be discharged to the outside of above-mentioned sound proof housing 1040 via above-mentioned anechoic room 1042 from the refrigerant gas of above-mentioned exhaust port 1051a discharge.
As Fig. 4 and shown in Figure 6, above-mentioned motor 1003 has above-mentioned rotor 1006 and said stator 1005, and this stator 1005 is configured in the radial outside of this rotor 1006 across air gap.
Above-mentioned rotor 1006 has rotor subject 1610 and the magnet 1620 that is embedded in this rotor subject 1610.Above-mentioned rotor subject 1610 is a drum, for example is made of stacked electromagnetic steel plate.Above-mentioned axle 1012 is installed in the hole portion of the central authorities of above-mentioned rotor subject 1610.Above-mentioned magnet 1620 is flat permanent magnet.6 above-mentioned magnet 1620 were upwards arranged with equally spaced center angle in the week of above-mentioned rotor subject 1610.
Said stator 1005 has: stator core 1510; Be wound on the coil 1520 in this stator core 1510; And the guide portion 1500 that is configured to more lean on radial outside than this coil 1520.In addition, in Fig. 6, omit the part of above-mentioned coil 1520 and describe, and omit guide sections 1500 and describe.
Said stator iron core 1510 is made of stacked a plurality of steel plates, in the above-mentioned seal containers 1001 of embedding such as shrink fit.Said stator iron core 1510 has annulus 1511 and 9 teeth 1512, and described tooth 1512 is given prominence to and equally spaced arranged on circumferentially to radially inner side from the inner peripheral surface of this annulus 1511.
Above-mentioned coil 1520 is wound on respectively on above-mentioned each tooth 1512, does not reel and do not cross over a plurality of above-mentioned teeth 1512, is so-called concentrated winding.Above-mentioned motor 1003 is so-called 6 utmost points, 9 grooveds.The electromagnetic force that produces on said stator 1005 by making electric current flow through above-mentioned coil 1520 makes above-mentioned rotor 1006 with above-mentioned axle 1012 rotations.
Guide sections 1500 is the parts that are clamped in the insulator 1530 between above-mentioned coil 1520 and the said stator iron core 1510.Above-mentioned insulator 1530 is configured in respectively on the axial both ends of the surface of said stator iron core 1510, is reeled by above-mentioned coil 1520 with said stator iron core 1510.In addition, in Fig. 6, omit above-mentioned insulator 1530 and describe.
Above-mentioned insulator 1530 for example is made of the resin material of good heat resistances such as liquid-crystalline polymer (LCP), polybutylene terephthalate (PBT), polyphenylene sulfide (PPS), polyimide or polyester.Observe from the direction of above-mentioned 1012 running shaft 1012a, above-mentioned insulator 1530 has the surrounding wall portion 1531 of the radial outside that is configured in above-mentioned coil 1520.This surrounding wall portion 1531 for example forms circumferentially has the ring-type of otch at regular intervals.That is, guide sections 1500 is above-mentioned surrounding wall portion 1531.
Observe from the direction of above-mentioned 1012 above-mentioned running shaft 1012a, guide sections 1500 is positioned at the position of more leaning on radial outside than the above-mentioned oily exhaust port 1050a of above-mentioned end plate member 1050, and, from observing with the direction of the above-mentioned running shaft 1012a quadrature of above-mentioned axle 1012, guide sections 1500 extends to be compared with the above-mentioned oily exhaust port 1050a of above-mentioned end plate member 1050 apart from the farther position of said stator unshakable in one's determination 1510.
That is, the lower end surface 1531a of above-mentioned surrounding wall portion 1531 is than close radial outside of above-mentioned oily exhaust port 1050a and downside.And the above-mentioned lower end surface 1531a of above-mentioned surrounding wall portion 1531 is than the close downside in the lower end surface (being coil end) of above-mentioned coil 1520.
The lubricant oil that guide sections 1500 (above-mentioned surrounding wall portion 1531) will be discharged from the above-mentioned oily exhaust port 1050a of above-mentioned end plate member 1050 is directed to the radially inner side of said stator 1005 with the refrigerant gas of discharging from above-mentioned compression unit 1002 in above-mentioned seal container 1001, make it flow to the space of the radially inner side of said stator 1005.
Promptly, can be with the space (hereinafter referred to as inboard channel) of the radially inner side of said stator 1005 the special-purpose path of going to as lubricant oil and refrigerant gas, with the space (hereinafter referred to as outboard channel) of the radial outside of said stator 1005 the special-purpose path that returns as lubricant oil.In a word, with the space of the radially inner side of said stator 1005 as the following path of going to: the refrigerant gas and the lubricant oil in the above-mentioned seal container 1001 of discharging in above-mentioned seal container 1001 from above-mentioned compression unit 1002 are flowed with respect to the opposition side of above-mentioned motor 1003 to above-mentioned compression unit 1002, on the other hand, with the space of the radial outside of said stator 1005 as following return path: the lubricant oil in the above-mentioned seal container 1001 are returned to above-mentioned compression unit 1002 sides with respect to above-mentioned motor 1003.
Here, so-called above-mentioned inboard channel is meant, the space between air gap between said stator 1005 and the above-mentioned rotor 1006 or the above-mentioned adjacent coil 1520,1520.So-called above-mentioned outboard channel is meant, what be arranged on groove on the outer circumferential face of said stator iron core 1510 or D cut sides etc. is space between the inner peripheral surface of otch unshakable in one's determination and above-mentioned seal container 1001.
Therefore, the lubricant oil of upstream side (downside) that makes above-mentioned motor 1003 is with refrigerant gas, shown in the arrow A of Fig. 4, flow to the downstream side (upside) of above-mentioned motor 1003 by above-mentioned inboard channel, the lubricant oil that makes the downstream side (upside) that flow to above-mentioned motor is shown in the arrow B of Fig. 4, return the upstream side (downside) of above-mentioned motor by above-mentioned outboard channel, the pasta of above-mentioned oil groove portion 1009 that can prevent to be positioned at the upstream side (downside) of above-mentioned motor disconnects (pasta is cut れ).
By preventing that this pasta from disconnecting, can be effectively the lubricant oil of above-mentioned oil groove portion 1009 be delivered to above-mentioned compression unit 1002 and above-mentioned motor 1003 via above-mentioned axle 1012, the reliability of compressor improves.
And the heating part that can utilize the lubricant oil that flows through above-mentioned inboard channel to cool off said stator 1005 efficiently is the heating part of above-mentioned coil 1520 and above-mentioned rotor 1006.
And, because guide sections 1500 is parts of above-mentioned insulator 1530, so, above-mentioned insulator 1530 can be also used as guide sections 1500, can realize the minimizing of number of components.
And, because the above-mentioned coil 1520 of said stator 1005 is so-called concentrated windings, so can simply above-mentioned coil 1520 be reeled is arranged on the above-mentioned tooth 1512.And, make refrigerant gas pass through can cool off said stator 1005 efficiently between the adjacent above-mentioned coil 1520,1520.
In addition, the invention is not restricted to above-mentioned mode of execution.For example, as above-mentioned compression unit 1002, also can be roller with blade separate rotary-type.As above-mentioned compression unit 1002, except rotary-type, also can use Scrawl or Reciprocatory.
As above-mentioned compression unit 1002, also can be two cylinder type with two cylinder chamber.Also above-mentioned coil 1520 can be formed and cross over the so-called Distributed Winding that above-mentioned a plurality of tooth 1512 is reeled.
And the above-mentioned end plate member 1050 for as the support that supports above-mentioned axle 1012 also can not be the parts that separate with above-mentioned cylinder 1021, but be formed on the above-mentioned cylinder 1021.And guide sections 1500 can not be the above-mentioned surrounding wall portion 1531 of above-mentioned insulator 1530 also, but as miscellaneous part, perhaps, also can be formed on the said stator iron core 1510.
And, also above-mentioned compression unit 1002 can be configured in top, above-mentioned motor 1003 is configured in the bottom.And, also can replace being arranged on the above-mentioned oily path in the above-mentioned axle 1012, and spiral chute is set at the internal surface of above-mentioned end plate member 1050.

Claims (5)

1. a compressor is characterized in that, this compressor has:
Seal container;
Be configured in the compression unit in this seal container; And
Be configured in the above-mentioned seal container, drive the motor of above-mentioned compression unit via axle,
Above-mentioned motor has rotor and stator, and this stator arrangement is at the radial outside of this rotor,
With the space of the radially inner side of said stator as going to path, this is gone to, and path makes the lubricant oil in the above-mentioned seal container and the refrigerant gas that is discharged in the above-mentioned seal container from above-mentioned compression unit flows with respect to the opposition side of above-mentioned motor to above-mentioned compression unit, on the other hand
As return path, this return path makes the lubricant oil in the above-mentioned seal container return to above-mentioned compression unit side with respect to above-mentioned motor with the space of the radial outside of said stator,
Above-mentioned compression unit has from the exhaust port of above-mentioned compression unit discharging refrigerant gas in above-mentioned seal container,
Above-mentioned compression unit has the support of the above-mentioned axle of supporting, and this support has oily exhaust port, and this oil exhaust port will offer the outside that lubricant oil between above-mentioned support and the above-mentioned axle is discharged to above-mentioned support,
Said stator has: stator core; Be wound on the coil in this stator core; And the guide portion that is configured to more lean on than this coil radial outside,
The lubricant oil that guide sections will be discharged from the above-mentioned oily exhaust port of above-mentioned support is directed to the above-mentioned path of going to of said stator be discharged to refrigerant gas in the above-mentioned seal container from above-mentioned compression unit.
2. compressor according to claim 1 is characterized in that,
Observe from the direction of above-mentioned running shaft, the above-mentioned exhaust port of above-mentioned compression unit is positioned at the outer circumferential face position more in the inner part than said stator, and from observing with the direction of the above-mentioned rotating shaft direct cross of above-mentioned axle, the position and the said stator of the above-mentioned exhaust port of above-mentioned compression unit are overlapping.
3. compressor according to claim 2 is characterized in that,
The said stator iron core comprises outstanding and a plurality of teeth that upwards arrange in week to radially inner side;
Above-mentioned coil is wound on respectively on above-mentioned each tooth, does not reel and do not cross over a plurality of above-mentioned teeth.
4. compressor according to claim 1 is characterized in that,
Observe from the direction of above-mentioned running shaft, guide sections is positioned at the position of more leaning on radial outside than the above-mentioned oily exhaust port of above-mentioned support, and, from observing with the direction of the above-mentioned rotating shaft direct cross of above-mentioned axle, guide sections extends to the above-mentioned oily exhaust port of above-mentioned support and compares apart from said stator farther position unshakable in one's determination.
5. compressor according to claim 1 is characterized in that,
Guide sections is a part that is clamped in the insulator between above-mentioned coil and the said stator iron core.
CN2006800491971A 2005-12-28 2006-12-12 Compressor Active CN101346548B (en)

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