CN1008760B - Hermetically sealed rotary compressor - Google Patents
Hermetically sealed rotary compressorInfo
- Publication number
- CN1008760B CN1008760B CN87103613A CN87103613A CN1008760B CN 1008760 B CN1008760 B CN 1008760B CN 87103613 A CN87103613 A CN 87103613A CN 87103613 A CN87103613 A CN 87103613A CN 1008760 B CN1008760 B CN 1008760B
- Authority
- CN
- China
- Prior art keywords
- mentioned
- hermetically sealed
- rotary compressor
- wiring terminal
- insulation cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000005057 refrigeration Methods 0.000 claims abstract description 10
- 239000004020 conductor Substances 0.000 claims description 23
- 238000009413 insulation Methods 0.000 claims description 22
- 239000011521 glass Substances 0.000 claims description 15
- 230000006835 compression Effects 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 11
- 230000007704 transition Effects 0.000 claims description 9
- 238000007710 freezing Methods 0.000 claims description 2
- 230000004927 fusion Effects 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- -1 polyethylene terephthalate Polymers 0.000 claims description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 2
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 2
- 229920003002 synthetic resin Polymers 0.000 claims description 2
- 239000000057 synthetic resin Substances 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims 2
- 230000002093 peripheral effect Effects 0.000 abstract description 7
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract 1
- 230000005611 electricity Effects 0.000 abstract 1
- 239000003507 refrigerant Substances 0.000 description 14
- 238000003466 welding Methods 0.000 description 10
- POIUWJQBRNEFGX-XAMSXPGMSA-N cathelicidin Chemical compound C([C@@H](C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CO)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H]([C@@H](C)CC)C(=O)NCC(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](C(C)C)C(=O)N1[C@@H](CCC1)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CO)C(O)=O)NC(=O)[C@H](CC=1C=CC=CC=1)NC(=O)[C@H](CC(O)=O)NC(=O)CNC(=O)[C@H](CC(C)C)NC(=O)[C@@H](N)CC(C)C)C1=CC=CC=C1 POIUWJQBRNEFGX-XAMSXPGMSA-N 0.000 description 5
- 239000003921 oil Substances 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- 238000010009 beating Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 239000000659 freezing mixture Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000002459 sustained effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 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
- 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
- F04C2240/00—Components
- F04C2240/60—Shafts
- F04C2240/603—Shafts with internal channels for fluid distribution, e.g. hollow shaft
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
A kind of hermetically sealed rotary compressor.Include a vertical cylindrical hermetically sealed enclosure, the motor that hollow cylinder shape stator is arranged, the cylindrical outer surface of its stator is fixed on the inside of above-mentioned shell and the lower coil end that protrudes is downwards arranged, press the knot device below the lower coil end that is contained in the above-mentioned shell and by above-mentioned electric motor driven refrigeration with a discoid cylinder block, its cylindrical outer surface is fixed on the inside of above-mentioned cylinder blanket, one runs through and is fixed in the wiring terminal that above-mentioned shell is given above-mentioned motor transmission of electricity, and it is installed between above-mentioned cylinder block and the said stator and faces an external peripheral surface of above-mentioned lower coil end.
Description
The present invention relates to a kind of hermetically sealed rotary compressor.
In general, rotary compressor produces less vibration than reciprocal compressor, and the throw of eccentric of its crank also less (just shorter).Therefore, adopt a kind of like this rotary compressor, be particularly useful for air-tight compressor, the size of compressor is reduced.In most of traditional hermetically sealed rotary compressors, compression set and the motor that drives this compression set are pressed into and are assemblied in the cylindrical seal shell.Yet, in the design of this traditional rotary compressor, do not consider emphatically not reduce its size, particularly do not reduce its total height.
In order to reduce the total height of rotary compressor, the applicant has proposed a kind of improved hermetically sealed rotary compressor, is disclosed in U. S. Patent No. 4623304.This hermetically sealed rotary compressor comprises a vertically disposed cylinder blanket, it has a unlimited top and a unlimited bottom, a roof is welded on the spacious top of this cylinder blanket, a diapire is welded at the spacious end of this cylinder blanket, a motor is pressed into and is assemblied in this cylinder blanket, and be positioned at the upper space of this cylinder blanket inside, also have a rotary-type refrigeration compression set to be positioned near the diapire in this cylinder blanket lower interior space, and by above-mentioned motoring.This rotary-type refrigeration compression set comprises a discoid cylinder block, and it is pressed into and is assemblied in the cylinder blanket.This cylinder block has a part that cuts at its circumference, and the wiring terminal of supplying with motor current is fixed on the wiring terminal receiving bore, and this hole is to utilize the definite room of part that cuts by cylinder block to be formed on the cylinder blanket.If this wiring terminal is fixed on the roof of hermetically sealed rotary compressor, the height overall of this rotary compressor just must increase so.Yet, in being disclosed in the improved hermetically sealed rotary compressor of No. 4623304, U. S. Patent,, therefore just may reduce the height overall of rotary compressor because wiring terminal is fixed on the cylinder blanket.In addition, because the cut-away branch is formed at the cylinder block circumference, and wiring terminal just is placed in this and cuts part, so it can also reduce the size of rotary compressor.
But in this hermetically sealed rotary compressor, the wiring terminal receiving bore is formed at the diapire of close this rotary compressor on the cylinder blanket, and in addition, is formed at cylinder block and assembles on the cylindrical inner circumference sidewall that is pressed into.Thereby, when beating this wiring terminal receiving bore with machining, the power of punching can make the spacious end of cylinder blanket and the cylinder blanket inner circumferential side wall section distortion that the cylinder block assembling is pressed into, this can cause the spacious end of cylindrical shell and the problem on deformation of the cylinder blanket inner circumferential side wall section that the cylinder block assembling is pressed into, and can influence the circularity at the spacious end and damage the inner circumferential side wall section.This distortion also can influence the welding between cylinder blanket and the diapire, reduces the efficient of welding operation.In addition, this distortion makes that cooperation between cylinder blanket and the cylinder block is bad and reduces the reliability of this rotary compressor.Also have, because wiring terminal is positioned near the welding part of cylinder blanket and diapire, the heat that welding operation produces also can influence wiring terminal, and just the performance of wiring terminal insulated part can reduce.In addition, because wiring terminal is placed in a position near the compressor bottom, the lead that connects the conductor plug of wiring terminal outside has the danger of contact pedestal, thereby destroyed.
The purpose of this invention is to provide a kind of hermetically sealed rotary compressor, have higher reliability and welding operation efficient, reduce the height overall of rotary compressor simultaneously and reduce its size.
According to the present invention, the hermetically sealed rotary compressor that provides comprises: the hermetically sealed enclosure that the perpendicular of a general cylindrical is provided with; Motor with a hollow cylinder stator, stator has a cardinal principle cylinder cylindricality and fixes (for example: shrinkage assembling, press fit) outer surface in above-mentioned cylinder blanket the inside, above-mentioned motor has a lower coil, and it faces down from the following of said stator; Refrigeration compression set is arranged in below the above-mentioned lower coil termination and in above-mentioned hermetically sealed enclosure, and by above-mentioned motoring, this refrigeration compression set has a discoid cylinder block, it has the outer surface of a general cylindrical, fixing (for example: welding, press fit) is in above-mentioned cylinder blanket the inside; And a wiring terminal is stretched and is fixed on this cylinder blanket by shell, be above-mentioned motor power supply, above-mentioned wiring terminal is arranged between above-mentioned cylinder block and the said stator lower surface and in the face of the external peripheral surface of above-mentioned lower coil termination.
To the narration of most preferred embodiment of the present invention, and, can crab have been arranged more fully from hereinafter to the present invention referring to accompanying drawing.
In the accompanying drawings:
Fig. 1 is the front view according to rotary compressor of the present invention;
Fig. 2 is the cross sectional side view of this rotary compressor, takes from II-II section of Fig. 1.
Fig. 3 is the perspective exploded view of rotary compressor shown in Figure 1;
Fig. 4 is the front view according to refrigeration compression set of the present invention, represents its working order;
Fig. 5 is the cut-away section front view of rotary compressor shown in Figure 1;
Fig. 6 is the cross sectional side view that is used for the wiring terminal of rotary compressor shown in Figure 1;
Fig. 7 is the front elevation that is used for the insulation cover piece of rotary compressor shown in Figure 1;
Fig. 8 is the sectional view of wiring terminal shown in Figure 6, and expression is installed to the method that the wiring column base gets on insulation cover piece shown in Figure 7;
Fig. 9 is the side view of the retainer of rotary compressor shown in Figure 1;
Figure 10 is the right elevation of retainer shown in Figure 9;
Figure 11 is a wiring terminal shown in Figure 6 front elevation when being contained on the hermetically sealed enclosure of rotary compressor shown in Figure 1; And
Figure 12 is that side view cuts open in the office of Figure 11, shows being connected of retainer shown in Figure 9 and wiring terminal shown in Figure 6.
Referring to accompanying drawing 1,2 and 3, cardinal principle is by the hermetically sealed rotary compressor of sidenote numeral 1 indication, comprise that 2, one of hermetically sealed enclosures are placed in the motor 3 of the top inner space of hermetically sealed enclosure 2, and a rotary-type refrigeration compression set 4 that is placed in the following inner space of hermetically sealed enclosure 2.Hermetically sealed enclosure 2 comprises the cylinder blanket 5 that an approximate vertical is provided with, and it has a spacious top and a spacious end, and a upper wall 6 is welded in the circumferential section of cylinder blanket 5 upper ends; Cover the spacious top of cylinder blanket 5, and diapire is welded in the circumferential section of cylinder blanket 5 lower ends, covers the spacious end of cylinder blanket 5.Cylinder blanket 5, upper wall 6 and diapire 7 have formed an airtight space 8.Several bearing parts 9 are fixed on the bottom of cylinder blanket 5 outer walls, and rotary compressor 1 gets on by the seat board that is installed to refrigerator or the base plate of bearing part 9.
Motor 3 comprises that 10, one on axle that an axis along cylinder blanket 5 substantially vertically stretches is contained in 11, one stators 12 around the hollow cylindrical of rotor 11 of rotor on the axle 10, and the stator coil 13 on the stator 12.Stator coil 13 comprises a last coil-end 13a protruding upward above stator 12 and the following lower coil end 13b who faces down and protrude from stator 12.As shown in Figure 2, stator coil 13 is made and is made the external diameter of lower coil end 13b be slightly less than the external diameter of coil-end 13a.Stator 12 has a columniform basically outer side wall, and this cylinder cylindricality outer side wall shrinkage of stator 12 is assemblied in the cylinder blanket 5.As shown in Figure 2, the position of this stator 12 is higher than the mid point of rotary compressor 1 total height.
Rotary-type refrigeration compression set 4 comprises the discoid cylinder block 14 that a substantial horizontal is provided with, and constitutes a cylinder 15 in it.Cylinder block 14 shapes resemble a flat plate, thickness is quite thin in the scope of its whole area, and having one to cut part 16 at its circumference, cylinder block 14 has a columniform outer side wall, and the cylindrical outer side wall of this cylinder block 14 is to be welded in the madial wall of cylinder blanket 5.As shown in Figure 2, cylinder block 14 is to be placed between Jie's stator 12 and the diapire 7.Go up end plate 17 for one and be fixed on the last plane of cylinder block 14, and cap 18 is contained on this on end plate 17.In addition, a following end plate 19 is fixed on the lower plane of cylinder block 14.The opposite two ends of cylinder 15 is by end plate 17 and 19 coverings up and down.Axle 10 runs through end plate 17 and following end plate 19, and by their supportings axle can freely be rotated.To shown in Figure 4, circular cam 20 and is placed within the cylinder 15 that is formed in the cylinder block 14 prejudicially and be integrally formed on the axle 10 as Fig. 2.The roller 21 of a hollow cylindrical is installed in rotation on the circular cam 20.A groove that extends radially outwardly 22 is formed on the sidewall of cylinder 15, and a flat blade 23 is inserted in this groove 22 slidably.This blade 23 is because the excircle sidewall of roller 21 is being pasted in the elastic force effect of spring 24 constantly.The inner chamber of cylinder 15 is divided into a suction chamber 25 and a pressurized chamber 26 by this blade 23.A refrigerant inlet hole 27 communicates with suction chamber 25 near blade 23, also has one to be formed at cylinder 15 sidewall top edges and to determine that the part 28 that cuts of refrigerant tap hole communicates with pressurized chamber 26 near blade 23.As shown in Figure 2, refrigerant inlet hole 27 links to each other with refrigerant supplying tube 29, cuts part 28 via the hole 30 that is formed in the end plate 17, and links to each other with the inner chamber of cap 18 via being located at cap 18 internal valves 31.When the refrigerant pressure in the pressurized chamber 26 surpassed certain pressure, valve 31 was just opened.When motor 3 drove, axle 10 rotated with counterclockwise direction as Fig. 4, and roller 21 is moved by the position of A shown in Figure 4, B, C successively.As can be seen from Figure 4, at this moment the volume of suction chamber 25 increases gradually, and on the contrary, the volume of pressurized chamber 26 reduces gradually.Therefore, when axle 10 rotated, the freezing mixture of gaseous state was inhaled into suction chamber 25, and the gaseous coolant in pressurized chamber 26 then is compressed.See Fig. 2 and Fig. 3 when the refrigerant pressure in the pressurized chamber 26 surpasses by valve 31() during the pressure that limits, the refrigerant that the pressurized chamber under the effect of pressure is 26 li is outflow just, and via cutting part 28, hole 30 and valve 31 enter the inside of cap 18.Then, the freezing mixture under the pressure enters among the airtight space 8 of 2 li of hermetically sealed enclosures again via the eyelet (not shown) that is formed on the cap 18, and airtight space 8 just has been full of the refrigerant under the pressure like this.Refrigerant under this pressure flows out from airtight space 8 via the refrigerant output tube 32 or 33 that is contained on the cylinder blanket 5.Contain lubricant oil in space in the bottom of hermetically sealed enclosure 2, and axle is equipped with a paddle 34 on 10 and is used for pump lubricating oils upwards and being distributed to and needs the various piece of lubricating in the airtight space 8.
As depicted in figs. 1 and 2, a part 35 of cylinder blanket 5, the outer peripheral surface that it faces down coil-end 13b outwards protrudes.This part 35 of outwards protruding comprises the flat part 35a of a circle and one the peripheral part 35b of circular cone table shape substantially, and therefore, this outside projection 35 is dish shapes.This outside projection 35 makes flat part 35a outwards protrude about 5 millimeters from the excircle sidewall of cylinder blanket 5 by drawing.The lower end of outside projection 35 almost is positioned at the sustained height below the cylinder block 14, and its upper end is positioned at the height at the lower end position place of stator 12.The wiring terminal receiving bore 36 of a circle is formed at the middle position of outside projection 35 flat top surface 35a, puts into the wiring terminal receiving bore 36 for the wiring terminal 37 of stator coil 13 power supplies from the inside of cylinder blanket 5.Wiring terminal receiving bore 36 is arranged in towards the outer peripheral surface of lower coil end 13b, and therefore, wiring terminal 37 also is contained in towards the outer peripheral surface of lower coil end 13b.That is to say, wiring terminal 37 is to be contained in a space that is centered on by cylinder blanket 5, cylinder block 14, stator 12 and lower coil end 13b, just be contained in since outwards the protrusion height of projection 35 apart from position that the distance of cylinder blanket 5 outwards changes.As shown in Figure 2, cylinder block 14 is the press fit cylinder blankets 5 of packing into, make cylinder block 14 cut out part 16 be positioned at wiring terminal 37 below.Wiring terminal 37 cuts part 16 by this, inserts between outside projection 35 and lower coil end 13b, puts into wiring terminal receiving bore 36 then.
Referring to Fig. 5 to Fig. 7, wiring terminal 37 comprises the metal connection column base 38 of a dark dish shape, and it has three cylindrical portions of protruding inwards 39, respectively forms an opening 40 therein.Three metallic conductor plugs 41 run through corresponding opening 40 and are contained in the inside, and the space filling between cylindrical portion 39 and conductor plug 41 is with glass 42, be fusion pressure therein.Therefore, conductor plug 41 is to be supported firmly by wiring column base 38 by glass 42, and because glass 42, with wiring column base 38 are electrical insulations.Wiring column base 38 has a skirt section that extends radially outwardly 43 at its peripheral part, and this skirt section 43 is to be welded on the sidewall of wiring terminal receiving bore 36.An insulation cover piece 44 as shown in Figure 7 is contained in 38 li of wiring column bases, as shown in Figure 6.Insulation cover piece 44 comprises that 45, one crimp parts 46 of a plate part are formed on the total length of plate part 45 peripheries, also has three from the protruding inwards projection 47 of plate part 45.An aperture 45a is formed at the center of plate part 45.Each projection 47 comprises a diameter-increasing portion 48, its internal diameter is slightly smaller than the external diameter of cylindrical portion 39, a reduced diameter portion fire 49, its internal diameter is slightly smaller than the external diameter of conductor plug 41, and the transition portion 50 Jie's diameter-increasing portion 48 and the reduced diameter portion of a cone table shape are divided between 49.In addition, the external diameter of crimp part 46 is a bit larger tham the internal diameter of wiring column base 38 cylindrical parts.Insulation cover piece 44 installs to wiring column base 38 like this and gets on: at first, divide reduced diameter portion 49 to install to corresponding conductor plug 41 and get on, as shown in Figure 8, then diameter-increasing portion 48 is installed to corresponding cylindrical portion 39 and get on.At this moment, reduced diameter portion divide 49 and conductor plug between, between diameter-increasing portion 48 and the cylindrical portion 39, and formed gas tight seal between the cylindrical part of crimp part 46 and wiring column base.In addition, gap 51 is formed between the interior edge face of the transition portion 50 of insulation cover piece 44 and glass 42 at the same time.Insulation cover piece 44 is made by synthetic resin, has good anti-freezing and oil resistance.To the embodiment shown in Figure 8, insulation cover piece 44 is made by polyethylene terephthalate at Fig. 6.Just, this insulation cover piece 44 is that mold pressing is made, and a thickness is approximately 250 to 300 microns poly terephthalic acid film is heated to that system forms in certain temperature that can not cause fusing near its fusing point.
Mention that above airtight space 8 has been full of the refrigerant of gaseous state, and contain lubricant oil in space in the bottom of hermetically sealed enclosure 2.And contain iron in refrigerant and the lubricant oil, when the fine particle of copper and so on, these particles may be by hermetically sealed enclosure 2 welding operations for example and the friction slip effect of the moving element in the hermetically sealed enclosure 2 and producing.These fine particles are taken in the airtight space 8 everywhere by refrigerant.Therefore, if insulation cover piece 44 is not provided, particulate will adhere to the interior edge face of glass 42.In this rotary compressor 1, when rotary compressor 1 started, a high voltage put on the conductor plug 41.At this moment, if a large amount of above-mentioned fine build-ups on the interior edge face of glass 42, can produce spark between conductor plug 41 and cylindrical portion 39, can produce like this to the ground electric leakage, and also can burn out conductor plug 41.Yet in the embodiment shown in fig. 6, because the interior edge face of glass 42 is covered by insulation cover piece 44, particulate just can not stick on the interior edge face of glass 42.In addition, owing to form a gap 51 between the transition portion 50 of the interior edge face of glass 42 and insulation cover piece 44, form a gap 51 between conductor plug 41 and the transition portion 50, conductor plug 41 and the distance of crossing between liquid part 50 outer surfaces are elongated, and the electric field on transition portion 50 outer surfaces has just died down like this.Therefore, attract the suction of particulate just to weaken on transition portion 50 outer surfaces, the particulate amount that is adsorbed onto transition portion 50 outer surfaces has just significantly reduced.As a result, just there is not the danger that spark is beated on transition portion 50 outer surfaces.Therefore, can thoroughly prevent to produce spark between conductor plug 41 and the cylindrical portion 39.In addition, owing to have a hole 45a(to see Fig. 7 on the plate part 45 of insulation cover piece 44), making does not have pressure difference between the interior outside of plate part 45, like this, and the danger that insulation cover piece 44 does not just come off from cylindrical portion 39.Say again, even wherein contain the refrigerant inflow plate part 45 of particulate and the space between the wiring column base 38, because the diameter-increasing portion 48 of insulation cover piece 44 is that gas tight seal contacts with cylindrical portion 39, does not therefore also exist particulate to enter the danger of glass 42 interior edge faces.
Come referring to Fig. 2, a wiring terminal guard shield 52 is fixed on the outer surface of the cylinder blanket 5 of wiring terminal 37 tops again.Shown in Figure 11 and 12, wiring terminal guard shield 52 is " U " shapes, thereby wiring terminal 37 has been enclosed.Wiring terminal guard shield 52 has above individual ligule sheet 53 is integrally formed in.This tongue piece 53 stretches downwards from the top of wiring terminal guard shield 52 and bends to the inside.As shown in figure 12, a retainer 54 is contained on the conductor plug 41.Shown in Fig. 9,10 and 12, retainer 54 comprises bottom 55 and columniform top 56 of a box-like, and two-part are whole compositions.55 the insides, bottom have two in a starter relay (not shown) and three conductor plugs 41 to link to each other, and when being used for motor 3 startings, it is high-power to supply with stator coil 13.56 the insides, top have an overload relay (not shown) to link to each other with the conductor plug 41 of arrangement; Also have a temperature sensing face 57, when retainer 54 is inserted on the conductor plug 41, contact with tongue piece 53.Overload relay is to move with the temperature of temperature sensing face 57, when the temperature of tongue piece, when just the temperature of hermetically sealed enclosure 2 surpasses uniform temperature, is used for cutting off the electric current supply to stator coil 13.
Be appreciated that from Figure 12 it is possible that making retainer 54 makes temperature sensing face 57 directly contact with the outside of cylinder blanket 5, rather than directly contact with the outside of outside projection 35.Yet in this case, the height of retainer 54 must improve.So in the embodiment shown in fig. 12, tongue piece 53 provides for the height that reduces retainer 54.Just, if as shown in figure 12, the height of retainer 54 has reduced, and this just can not lay temperature sensing face 57 and directly contact with cylinder blanket 5, therefore will provide tongue piece 53.A protection box (not shown) is added in wiring and leans on the guard shield 52 so that fender bracket 54 is fenced up.
As shown in Figure 2, wiring terminal 37 is placed in the space that is surrounded by cylinder blanket 5, stator 12, lower coil end 13b and cylinder block 14.Therefore, reduce the total height of rotary compressor 1 and to reduce its size be possible.In addition, because wiring terminal 37 is positioned at the similar sustained height of lower coil end 13b, just, because wiring terminal 37 is placed in a high relatively position, when beating wiring terminal receiving bore 36 with machining, act on the punching power on the inner circumference sidewall of the spacious end of cylinder blanket 5 and the cylinder blanket 5 that cylinder block 14 will be pressed into, with common rotary compressor relatively, just reduced.Therefore, the distortion that occurs on the inner circumference sidewall of the spacious end of cylinder blanket and the cylinder blanket 5 that cylinder block 14 will be pressed into has just reduced, and the distortion of the circularity at the spacious end and internally the damage of circumferential side wall part also reduced.As a result, just may improve the efficient of welding operation and the assembly precision between cylinder block 14 and the cylinder blanket 5.
In addition, lower coil end 13b have have between the main winding or main winding and time winding between the outer circumferential portion (not shown) of spill.If wiring terminal 37 is placed in a spill outer circumferential portion in the face of lower coil end 13b, so outwards the height of projection 35 just may reduce, and further reduces the size of rotary compressor 1 thus.In addition, shorten the length that conductor plug 41 is positioned at cylinder blanket 5 parts, outwards the height of projection 35 also may reduce and further reduce thus the size of rotary compressor 1.
In addition, because wiring terminal 37 is placed in a higher relatively position, when diapire 7 welds toward cylinder blanket 5 on, less by the influence of the heat pairs of posts 37 of welding operation generation.Therefore, can prevent the destruction of glass 42 with insulation cover piece 44 performances.In addition, because wiring terminal 37 is placed in a higher relatively position, the possibility that this lead (not shown) that just can reduce connection outside conductor plug 41 contacts with base plate, and this contact is harmful to.
According to the present invention, because wiring terminal is placed in a higher relatively position, this just may improve the efficient of welding operation and the assembly precision between cylinder block and the cylinder blanket, reduces the total height of rotatable compressor simultaneously and reduces its size.
By with reference to the specific embodiment selected for the purpose of illustration to narration of the present invention, for persons skilled in the art, they obviously can therefrom make a lot of variations, but still break away from basic principle and scope that format is not invented.
Claims (9)
1, a kind of hermetically sealed rotary compressor, it comprises:
A columniform hermetically sealed enclosure;
One is fixed to the motor that its axis parallels with the central axis of above-mentioned hermetically sealed enclosure;
One by above-mentioned electric motor driven rotary-type refrigeration compression set;
Above-mentioned motor has a lower coil end that protrudes downwards,
Above-mentioned refrigeration compression set has a cylinder block that is fixed on the hermetically sealed enclosure,
On the sidewall of above-mentioned hermetically sealed enclosure, the wiring terminal into above-mentioned motor power supply usefulness is equipped with in the space that utilizes above-mentioned motor, above-mentioned cylinder block and above-mentioned hermetically sealed enclosure to be surrounded,
On the outer wall of above-mentioned hermetically sealed enclosure, the guard shield that is wrapping above-mentioned wiring terminal is housed,
On the outer side terminal of above-mentioned wiring terminal, the hot protective relay that is used for motor is housed,
It is characterized in that,
With the sidewall of the corresponding hermetically sealed enclosure of outer circumferential face of the lower coil end of above-mentioned motor on, form a projection that outwards protrudes, the wiring terminal of above-mentioned power supply usefulness is housed in this projection; In above-mentioned guard shield, the contacted tongue piece of temperature-sensitive face with hot protective relay is housed.
According to the hermetically sealed rotary compressor of claim 1, it is characterized in that 2, being positioned on the periphery of above-mentioned power supply with the cylinder block at wiring terminal place has to cut a part.
3, according to the hermetically sealed rotary compressor of claim 1, it is characterized in that, the outer surface that one of them wiring terminal guard shield is fixed on the above-mentioned cylinder blanket of above-mentioned wiring terminal top also fences up above-mentioned wiring terminal, and above-mentioned tongue piece integral body is formed on this wiring terminal guard shield.
According to the hermetically sealed rotary compressor of claim 1, it is characterized in that 4, wherein above-mentioned wiring terminal comprises: the metal connection column base of a dish shape is fixed in above-mentioned cylinder blanket; Several cylindrical portions of protruding inwards from this wiring column base also form opening therein; Several metallic conductor plugs run through the opening of above-mentioned corresponding cylindrical portion, and this opening filling reaches the gas tight seal between above-mentioned cylindrical portion and the conductor plug with fusion pressure glass therein; And an insulation cover piece is contained on the inner face of this wiring column base, and covers the inner wall section of this wiring column base, the outer wall of this cylindrical portion, the interior edge face of this glass filled opening and the part of above-mentioned conductor plug airtightly.
According to the hermetically sealed rotary compressor of claim 4, it is characterized in that 5, the interior edge face of wherein above-mentioned insulation cover piece and above-mentioned glass filled opening separates, and is formed with the gap therebetween.
6, according to the hermetically sealed rotary compressor of claim 4, it is characterized in that, wherein above-mentioned insulation cover piece comprises a plate part, a crimp part is contained on the madial wall of above-mentioned wiring column base airtightly, and it is several from the protruding inwards projection of this plate part, this each projection comprises that a diameter-increasing portion is contained on the outer wall of above-mentioned cylindrical portion, a reduced diameter portion is divided on the above-mentioned conductor plug, and a transition portion is situated between between this diameter-increasing portion and this reduced diameter portion branch, and covers the interior edge face of above-mentioned glass filled opening.
According to the hermetically sealed rotary compressor of claim 6, it is characterized in that 7, the plate part of wherein above-mentioned insulation cover piece has a through hole.
According to the hermetically sealed rotary compressor of claim 4, it is characterized in that 8, wherein above-mentioned insulation cover piece is made by synthetic resin, have good anti-freezing and oil resistance.
9, hermetically sealed rotary compressor according to Claim 8 is characterized in that, wherein above-mentioned insulation cover piece is made by the polyethylene terephthalate film.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61115091A JPS62271975A (en) | 1986-05-20 | 1986-05-20 | Air-tight terminal for enclosed-type compressor |
| JP115091/86 | 1986-05-20 | ||
| JP238507/86 | 1986-10-07 | ||
| JP61238508A JPS6394093A (en) | 1986-10-07 | 1986-10-07 | Closed-type rotary compressor |
| JP61238507A JPS6394092A (en) | 1986-10-07 | 1986-10-07 | Closed-type rotary compressor |
| JP238508/86 | 1986-10-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN87103613A CN87103613A (en) | 1987-12-16 |
| CN1008760B true CN1008760B (en) | 1990-07-11 |
Family
ID=27312888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN87103613A Expired CN1008760B (en) | 1986-05-20 | 1987-05-15 | Hermetically sealed rotary compressor |
Country Status (5)
| Country | Link |
|---|---|
| KR (1) | KR930001917B1 (en) |
| CN (1) | CN1008760B (en) |
| CZ (1) | CZ279382B6 (en) |
| IT (1) | IT1204624B (en) |
| SK (1) | SK348887A3 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09310693A (en) * | 1996-05-22 | 1997-12-02 | Sanyo Electric Co Ltd | Hermetic compressor |
| JPH09324777A (en) * | 1996-06-05 | 1997-12-16 | Sanyo Electric Co Ltd | Closed type rotary compressor |
| CN101260884B (en) * | 2007-03-06 | 2012-11-07 | Lg电子株式会社 | Compressor |
| JP2011149393A (en) * | 2010-01-25 | 2011-08-04 | Sanden Corp | Fluid machine |
| JP5611630B2 (en) * | 2010-03-25 | 2014-10-22 | 三洋電機株式会社 | Rotary compressor |
| CN104295496B (en) * | 2014-10-22 | 2018-09-11 | 广东美芝制冷设备有限公司 | External-rotor-type compressor |
| CN112855502A (en) * | 2020-12-28 | 2021-05-28 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor housing, compressor and air conditioner |
-
1987
- 1987-05-14 CZ CS873488A patent/CZ279382B6/en not_active IP Right Cessation
- 1987-05-14 SK SK3488-87A patent/SK348887A3/en unknown
- 1987-05-15 CN CN87103613A patent/CN1008760B/en not_active Expired
- 1987-05-15 IT IT20541/87A patent/IT1204624B/en active
- 1987-05-20 KR KR1019870005056A patent/KR930001917B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CZ279382B6 (en) | 1995-04-12 |
| KR870011376A (en) | 1987-12-23 |
| SK278782B6 (en) | 1998-02-04 |
| IT1204624B (en) | 1989-03-10 |
| IT8720541A0 (en) | 1987-05-15 |
| CN87103613A (en) | 1987-12-16 |
| CZ348887A3 (en) | 1994-12-15 |
| KR930001917B1 (en) | 1993-03-20 |
| SK348887A3 (en) | 1998-02-04 |
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|---|---|---|---|
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| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
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