CN100422554C - Compressor - Google Patents
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- CN100422554C CN100422554C CNB2004800008949A CN200480000894A CN100422554C CN 100422554 C CN100422554 C CN 100422554C CN B2004800008949 A CNB2004800008949 A CN B2004800008949A CN 200480000894 A CN200480000894 A CN 200480000894A CN 100422554 C CN100422554 C CN 100422554C
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- compressor
- insertion parts
- sleeve
- lubricant oil
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- 230000006835 compression Effects 0.000 claims abstract description 63
- 238000007906 compression Methods 0.000 claims abstract description 63
- 238000003780 insertion Methods 0.000 claims description 258
- 230000037431 insertion Effects 0.000 claims description 258
- 239000000314 lubricant Substances 0.000 claims description 202
- 230000002093 peripheral effect Effects 0.000 claims description 58
- 230000005520 electrodynamics Effects 0.000 claims description 32
- 239000003795 chemical substances by application Substances 0.000 claims description 22
- 238000005057 refrigeration Methods 0.000 claims description 22
- NOQGZXFMHARMLW-UHFFFAOYSA-N Daminozide Chemical group CN(C)NC(=O)CCC(O)=O NOQGZXFMHARMLW-UHFFFAOYSA-N 0.000 claims description 19
- 230000007246 mechanism Effects 0.000 claims description 19
- 230000015572 biosynthetic process Effects 0.000 claims description 10
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- 238000000151 deposition Methods 0.000 claims description 8
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- 239000000725 suspension Substances 0.000 claims description 5
- NNPPMTNAJDCUHE-UHFFFAOYSA-N isobutane Chemical group CC(C)C NNPPMTNAJDCUHE-UHFFFAOYSA-N 0.000 claims description 4
- 229920003002 synthetic resin Polymers 0.000 claims description 4
- 239000000057 synthetic resin Substances 0.000 claims description 4
- 239000001282 iso-butane Substances 0.000 claims description 2
- 239000003921 oil Substances 0.000 description 255
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- 239000004696 Poly ether ether ketone Substances 0.000 description 9
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 9
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- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 description 9
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- 239000000806 elastomer Substances 0.000 description 6
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
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- AHFMSNDOYCFEPH-UHFFFAOYSA-N 1,2-difluoroethane Chemical class FCCF AHFMSNDOYCFEPH-UHFFFAOYSA-N 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
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- NPNPZTNLOVBDOC-UHFFFAOYSA-N 1,1-difluoroethane Chemical compound CC(F)F NPNPZTNLOVBDOC-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
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Abstract
A compressor that efficiently, reliably and stably pumps oil even at low speed operation, and is highly reliable and of low cost. The compressor is capable of stably maintaining a structure of a viscosity pump over a long period. The compressor receives a compression element that stores oil in a sealed container and compresses gas. The compression element has a shaft that vertically extends and rotates and a viscosity pump that communicates with an oil.
Description
Technical field
The present invention relates to improvement to the viscosity pump of the slide part supplying lubricating oil of compressor.
Background technique
In recent years, because environmental protection requirement, household electric refrigerator and air conditioner are tending towards energy-conservationization.Wherein, coolant compressor is realized frequency conversionization, along with the low speed rotationization of running rotation number, is difficult to fuel feeding fully with existing centrifugal pump.
In Japanese Unexamined Patent Application Publication 2002-519589 communique, disclosed a kind of compressor, adopt viscosity pump to replace centrifugal pump in this compressor, this viscosity pump is even also can obtain stable pump capacity when low speed rotation.
Below, with reference to the compressor of the above-mentioned prior art of description of drawings.In the following description, relation up and down is that the state that is set to normal position with sealed electrical compressor is a benchmark.
Figure 34 be existing compressor want portion's sectional view.Among Figure 34,, depositing lubricant oil 7102 in the bottom of seal container 7101.Electrodynamic element 7105 is made of the rotor 7107 of stator 7106 and built-in permanent magnet.On the quill shaft 7111 that forms compression unit 7110, setting-in rotor 7107, is fixing the sleeve 7112 that rotates with axle 7111 one simultaneously, and the lower end at least of this sleeve 7112 is immersed in the lubricant oil 7102.
Central part recessed and be U font roughly, by the carriage 7115 that elastic material forms, its two end part are fixed on the coaming plate 7116, this coaming plate 7116 is fixed on the stator 7106.The parts 7120 that formed by plastic materials, insert sleeve 7112 have formed spiral chute in its periphery, and have formed oil passage between the sleeve 7112.The lower end of parts 7120 is fixed on the central part of carriage 7115.
Below, the action of above-mentioned existing compressor is described.
After electrodynamic element 7105 energisings, rotor 7107 rotations, thereupon, axle 7111 is rotation also, the compressed action that compression unit 7110 is scheduled to.Lubricant oil 7102 along with the rotation of sleeve 7112, is rotated rising at the inner peripheral surface of sleeve by towing adhesively in the spiral chute and the oil passage between the sleeve 7112 of parts 7120 peripheries, be drawn into the hollow portion top of axle 7111.
The summary of the invention summary
Compressor of the present invention is being deposited lubricant oil and is being accommodated the compression unit of compressed refrigerant and driving the electrodynamic element of this compression unit in seal container.Above-mentioned electrodynamic element is made of stator and rotor.Above-mentioned compression unit has at vertical direction extension and the axle that rotates and is formed on this and the viscosity pump that is communicated with above-mentioned lubricant oil.Above-mentioned viscosity pump, have the cylinder blank part that is formed on the above-mentioned axle, be inserted in the insertion parts in the above-mentioned cylinder blank part coaxially and rotatably, be formed between interior week of above-mentioned cylinder blank part and the above-mentioned insertion parts periphery and according to the spiral chute that lubricant oil is formed to the direction that rises, inhibition mechanism with the rotation that suppresses above-mentioned insertion part, it is characterized in that, also have the below that is fixed on above-mentioned axle, form the sleeve of above-mentioned cylinder blank part, peripheral direction in above-mentioned insertion parts forms jut, on above-mentioned sleeve, formed support, this support with the thrust face of above-mentioned jut rotatably suspension.
Description of drawings
Fig. 1 be the invention process form 1 compressor want portion's sectional view.
Fig. 2 is the bottom stereogram of the axle in the invention process form 1.
Fig. 3 be after the starting in the invention process form 1 operating condition want portion's sectional view.
Fig. 4 be the invention process form 2 compressor want portion's sectional view.
Fig. 5 is the bottom stereogram of the axle in the invention process form 2.
Fig. 6 is the section amplification figure of the sleeve in the invention process form 2.
Fig. 7 be the invention process form 3 compressor want portion's sectional view.
Fig. 8 is the bottom stereogram of the axle in the invention process form 3.
Fig. 9 is the section amplification figure of the sleeve in the invention process form 3.
Figure 10 is the sectional view of the compressor of the invention process form 4.
Figure 11 be the invention process form 4 compressor want portion's sectional view.
Figure 12 be the invention process form 4 compressor want portion's stereogram.
Figure 13 be the invention process form 5 compressor want portion's sectional view.
Figure 14 be the invention process form 6 compressor want portion's sectional view.
Figure 15 is the sectional view of the compressor of the invention process form 7.
Figure 16 be the invention process form 7 compressor want portion's sectional view.
Figure 17 be the invention process form 8 compressor want portion's sectional view.
Figure 18 be the invention process form 8 compressor want portion's ssembly drawing.
Figure 19 is the sectional view of the compressor of the invention process form 9.
Figure 20 be the invention process form 9 want portion's sectional view.
Figure 21 is the sectional view of the compressor of the invention process form 10.
Figure 22 be the invention process form 10 want portion's sectional view.
Figure 23 is the sectional view of the compressor of the invention process form 11.
Figure 24 be the invention process form 11 compressor want portion's sectional view.
Figure 25 be in the invention process form 11 insertion parts want portion's enlarged view.
Figure 26 is the sectional view of the compressor of the invention process form 12.
Figure 27 be the invention process form 12 compressor want portion's sectional view.
Figure 28 is the sectional view of the compressor of the invention process form 13.
Figure 29 be the invention process form 13 compressor want portion's sectional view.
Figure 30 is the sectional view of the compressor of the invention process form 14.
Figure 31 be the invention process form 14 compressor want portion's sectional view.
Figure 32 be in the invention process form 14 viscosity pump want portion's sectional view.
Figure 33 be the invention process form 15 compressor want portion's sectional view.
Figure 34 be existing compressor want portion's sectional view.
The optimal morphology that carries out an invention
In the above-mentioned existing structure, formed hollow hole above viscosity pump, the parking space of the lubricant oil that is transported is bigger.Especially in the process that the lubricant oil that is drawn by the viscosity pump after the starting is further transported toward above, lubricant oil is filled with in the hollow hole needs the long period.
Therefore, the speed that lubricant oil transports toward the top is slow, can not slide thereby contact between the slide member stably to the slide part supplying lubricating oil, produce the damage abrasion, cause that thus compression unit is lockable.
The present invention makes in order to address the above problem, though its objective is provide a kind of transport to each slide part that the speed of lubricant oil is fast also can be conscientiously during at low-speed running and stably transport compressor lubricant oil, that reliability is high.
To achieve these goals, in the compressor of the present invention, viscosity pump and the 2nd viscosity pump on the main shaft part of axle, have been connected with.Above-mentioned viscosity pump is towards the lubricant openings that leaves the seal container below in, and above-mentioned the 2nd viscosity pump is connected with the top of above-mentioned viscosity pump.Because the oil passage of main shaft part is almost all formed by pump, so the detention space of lubricant oil and refrigeration agent is little, the speed of transporting lubricant oil is fast, simultaneously, and the low centrifugal force when lubricant oil not only exists with ... low speed rotation, but in path adhesively by towing, is upwarded pressure by being paid.
Compressor of the present invention is connected with viscosity pump and the 2nd viscosity pump, and the 2nd viscosity pump is on the top of viscosity pump, and the speed of transporting lubricant oil is fast, even also can stably transport lubricant oil when low-speed running, can provide reliability high compressor.
Below, with reference to description of drawings example 1 to 3 of the present invention.But the present invention is not limited to example.
(example 1)
Fig. 1 be the invention process form 1 compressor want portion's sectional view.Fig. 2 is the bottom stereogram of the axle in this example.Fig. 3 be after the starting in this example operating condition want portion's sectional view.
Among Fig. 1, Fig. 2, Fig. 3, in seal container 3101, depositing lubricant oil 3102, and refrigeration agent 3103 in filling.
On the main shaft part 3116 of axle 3111, the viscosity pump 3130 and the 2nd viscosity pump 3150 that is connected with viscosity pump 3130 by intercommunicating pore 3140 that are immersed in the lubricant oil 3102 have been formed.The 2nd viscosity pump 3150 is formed on the top of viscosity pump 3130.
Below, the viscosity pump 3130 that detailed description is connecting and the structure of the 2nd viscosity pump 3150.
The upper end of cylinder blank part 3135, the below of arrival main bearing 3114.
In the periphery of insertion parts 3133, formed the spiral chute 3134 of worm tooth shape, and sleeve 3131 between, formed helical oil passage for lubricant oil 3102 circulations.In addition, the material of insertion parts 3133 is to adopt to have the low plastic materials of metallic material anti-refrigeration agent, lubricating oil resistance, thermal conductivity ratio formation axle 3111, for example PPS, PBT, PEEK etc.
The 2nd viscosity pump 3150 is by main shaft part 3116, carve guide groove 3151 and the main bearing 3114 be located at main shaft part 3116 peripheries and constitute.
The upper end of guide groove 3151 is communicated with eccentric interconnecting part 3160 in the eccentric part 3117.
Below, action, the effect of the compressor of above-mentioned structure are described.
When stator 3106 was switched on, rotor 3107 was with axle 3111 rotations from the frequency conversion drive circuit.Thereupon, the eccentric motion of eccentric part 3117 makes piston 3113 to-and-fro motion in cylinder pressure 3108 by connecting rod 3118, sucks and compressed refrigerant 3103 compressed action of being scheduled to.
Along with the rotation of the main shaft part 3116 of axle 3111, lubricant oil 3102 is risen by the rotation towing of sleeve 3131 in the outer surface and the oil passage between sleeve 3131 inner peripheral surfaces of the insertion parts 3133 that constitutes viscosity pump 3130.Then, lubricant oil 3102 arrives the starting point of guide groove 3151 by intercommunicating pore 3140.Then, lubricant oil 3102 is further risen by the rotation towing of main shaft part 3116 in the guide groove 3151 and the path between main bearing 3114 inner peripheral surfaces of main shaft part 3116 outer surfaces that constitute the 2nd viscosity pump 3150.Like this, lubricant oil 3102 is transported to places such as eccentric part 3117 and connecting rod 3118 by eccentric interconnecting part 3160.
As mentioned above, in this example, the oil passage of main shaft part 3116 is almost formed by viscosity pump 3130 and the 2nd viscosity pump 3150 entirely, the detention space of refrigeration agent 3103 and lubricant oil 3102 is little, so the speed of lubricant oil 3102 does not reduce, can be transported to each slide part with fast speed.And, the low centrifugal force when lubricant oil 3102 does not just exist with ... low speed rotation, but in oil passage, quilt is towing adhesively, is paid to upward pressure, so, even when low speed rotation, also can draw effectively.
In addition, dissolve the lubricant oil 3102 of refrigeration agent 3103, be compressed unit 3110 and electrodynamic element 3105 heating.Though refrigerant gas 3103 gasifies in oil passage, but, because the viscosity pump 3130 that is connecting and the lubricant oil transporting power height of the 2nd viscosity pump 3150, so, refrigeration agent also is transported with lubricant oil 3102, and transporting of lubricant oil 3102 is not interrupted.As a result, the speed of each slide part being transported lubricant oil is fast, and, even when the low speed rotation of 600r/min, after starting, can immediately lubricant oil 3102 be transported to each slide part, have stable lubricant oil and transport characteristic.
Therefore, can not occur because of damage that contacts generation between the slide member and the pinning that abrasion cause abnormal wear and compression unit 3110, the compressor that can realize having high reliability.
In addition, in this example, it is the mode that embeds or be pressed into sintering, rotor 3107 is inlaid on the main shaft part 3116, but, when setting-in rotor 3107, because the internal diameter size of cylinder blank part 3135 changes, so, and the gap size of the radial direction between the insertion parts 3133 is difficult to control.For this reason, on the main shaft part 3116 of setting-in rotor 3107, do not form viscosity pump 3130, the length at its position, promptly above insertion parts 3133 to the length of intercommunicating pore 3140, equate approximately with the setting-in length of rotor 3107, be about about 10～20mm.
But, according to this example, test factually and learn, as shown in Figure 3, after starting, above the lubricant oil 3102 in the cylinder blank part, form known parabolic Free Surface under centrifugal action, the lubricant oil 3102 moments ground that has arrived insertion parts 3133 upper-end surfaces arrives intercommunicating pore 3140.Therefore, be 10～20mm if do not form the length at the position of pump, then the travelling speed to lubricant oil does not almost influence.
On the other hand, because the travelling speed of lubricant oil is very fast, so, after the starting, lubricant oil 3102 moments ground in the cylinder blank part 3135 flows into guide groove 3151, becomes negative pressure in the cylinder blank part 3135, and insertion parts 3133 is drawn onto the top of cylinder blank part 3135 sometimes.In addition, when turning round continuously, borrow viscous effect and lubricant oil is sent to the counter-force of the power of top, act on down on the insertion parts 3133 always.
But, the central part of support unit 3132 is fastened in the card complex hole 3137 of insertion parts 3133, the moving about of above-below direction of insertion parts 3133 lived in constraint, so, when no matter being starting or continuously during running, can both maintain the structure of viscosity pump 3130, this viscosity pump 3130, between cylinder blank part 3135 and insertion parts 3133, lubricant oil 3102 is drawn the top by viscosity.
In addition, by the oil pressure that produces in the spiral chute 3134, the gap between sleeve 3131 and the insertion parts 3133 is kept.So sleeve 3131 seldom takes place with the slip abrasion and the warpage of insertion parts 3133.In addition, support unit 3132 is not to be completely fixed in the card complex hole 3137, when the difference of the external diameter of the internal diameter of card complex hole 3137 and support unit 3132 is the hundreds of μ m～1mm left and right sides, similarly can keep the gap of sleeve 3131 and insertion parts 3133.
In addition, the joining portion 3138 of card complex hole 3137, advance side opening towards main shaft part 3116, so, when for example even operating frequency is the high speed rotating of 4200～4800r/min, the masterpiece of sense of rotation is used in the side of remaining silent of card complex hole 3137, and acts on joining portion 3,138 one sides of opening hardly.Like this,, be supported the insertion parts 3133 that parts 3132 constraints firmly can not be rotated, also can not break away from preposition even in running up.
In addition, towards the length of the opening portion at the joining portion 3138 of breach 3136, littler than the external diameter of support unit 3132, so, as long as in card complex hole 3137,, can easily not break away from card complex hole 3137 to support unit 3132 intercalations even vibrated in the assembling of production line with when transporting etc. yet.
In addition, do not need additionally to be provided for retraining the rotation of insertion parts 3133 and the parts that above-below direction moves about, so cost reduces.
In addition, even owing to when low speed rotation, also can transport lubricant oil 3102 effectively, so, reducing the heat that is subjected to main shaft part 3116 and electrodynamic element 3105, the temperature that can suppress lubricant oil 3102 rises.Therefore, compare with R134a as the R600a of isobutane, though to the solubility height of lubricant oil 3102,, can be suppressed at the gas hold-up after aerifying in the oil passage, can suppress the obstruction of transporting as the lubricant oil 3102 of gas choking phenomenon.
In addition, viscosity pump 3130 and the 2nd viscosity pump 3150 are after electrodynamic element 3105 and compression unit 3110 are assembled into one, and insert in the seal container 3101, flexibly are bearing in the seal container 3101 by spring 3104.Therefore, needn't set the component parts of viscosity pump 3130 and the 2nd viscosity pump 3150 in seal container 3101, assembling has high production rate easily, and simultaneously, component number is few, and cost is low.
In addition, in the example of the present invention, be that sleeve 3131 is fixed in the cylinder blank part 3135, but, as long as can guarantee that gap between the inner peripheral surface of the outermost side face of insertion parts 3133 and cylinder blank part 3135 is in 500 μ m, also can not use sleeve 3131, and directly insertion parts 3133 be inserted in the cylinder blank part 3135 that is processed into by main shaft, constitute viscosity pump.In this structure, except the component number difference, essential structure is identical with the structure of this example, can obtain same action, effect and effect.
(example 2)
Fig. 4 be the invention process form 2 compressor want portion's sectional view.Fig. 5 is the bottom stereogram of the axle in this example.Fig. 6 is the section amplification figure of the sleeve in this example.
Below, with reference to Fig. 4, Fig. 5 and Fig. 6, this example is described.The structure same with example 1 annotated with same tag, and its detailed description is omitted.
On the main shaft part 3216 of the axle 3211 that constitutes compression unit 3210, viscosity pump 3230 that is immersed in the lubricant oil 3102 and the 2nd viscosity pump 3250 that is being connected with viscosity pump 3230 by intercommunicating pore 3140 have been formed.The 2nd viscosity pump 3250 is formed on the top of viscosity pump 3230.
Below, describe the viscosity pump 3230 and the 2nd viscosity pump 3250 that are connecting in detail.
The upper end of cylinder blank part 3235, the below of arrival main bearing 3114.
At the inner peripheral surface of sleeve 3231, formed the spiral chute 3234 of worm tooth shape, and insertion parts 3233 between, formed helical oil passage for lubricant oil 3102 circulations.
The material that insertion parts 3233 adopts is to have plastic materials anti-refrigeration agent, lubricating oil resistance, that thermal conductivity is lower than metallic material.In addition, support unit 3232 is made of metal wire rod, is fixing with running through insertion parts 3233 lower ends.
Free joint 3261 is L font roughly, and the one end is fixed on the bottom of stator 3106, has breach 3236 and card complex hole 3237 at the other end.Breach 3236 is passed in the end of the support unit 3232 that forms from insertion parts 3233 lower ends, connects card complex hole 3237, with support unit 3232 and rotatably combination of free joint 3261.Like this, the sense of rotation of insertion parts 3233 and moving about of above-below direction are lived in constraint.
In addition, breach 3236 engages with respect to the advance side of card complex hole 3237 with main shaft part 3216, and, the joining portion 3238 of card complex hole 3237, promptly towards the length of the opening portion of breach 3236, littler than the external diameter of support unit 3232.
The 2nd viscosity pump 3250 is by main shaft part 3216, carve guide groove 3251, the main bearing 3114 be located at main shaft part 3216 peripheries and constitute.
At the outer surface of main shaft part 3216, form section and be shaped as platform shape or semicircular guide groove 3251, between main bearing 3114 and guide groove 3251, formed helical oil passage for lubricant oil 3102 circulations.
Below, action, the effect of the compressor of above-mentioned structure are described.
From above-mentioned frequency conversion drive circuit after stator 3106 energising, rotation along with the main shaft part 3216 of axle 3211, lubricant oil 3102 is risen by the rotation towing of sleeve 3231 in the inner peripheral surface and the oil passage between insertion parts 3233 peripheries of the sleeve 3231 that constitutes viscosity pump 3230.Then, lubricant oil 3102 arrives the starting point of guide groove 3251 by intercommunicating pore 3140.
Then, lubricant oil 3102 is further risen by the rotation towing of main shaft part 3216 in the guide groove 3251 and the path between main bearing 3114 inner peripheral surfaces of main shaft part 3216 outer surfaces that constitute the 2nd viscosity pump 3250.
As mentioned above, in this example, by the effect same with example 1, the speed of transporting lubricant oil 3102 toward each slide part is fast.And, even when the low speed rotation of 600r/min, also have stable lubricant oil and transport characteristic, so, can not occur because of damage that contacts generation between the slide member and the locking that abrasion cause abnormal wear and compression unit 3210, the compressor that can realize having high reliability.
Here, for the moment that rotation produces, leave the long more position of distance of the axis of rotation of axle 3211, it is more little to act on this locational loading.In this example, the support unit 3232 of formation constraint mechanism 3239 and the bound fraction 3263 of free joint 3261 are long with the distance of axis of rotation, so, can lower the loading that acts on the bound fraction 3263, bound fraction 3263 to lose possibility extremely low.
In addition, in this example, spiral chute 3234 is set on the inner peripheral surface of sleeve 3231, the area that contacts with lubricant oil 3102 of rotation side inner peripheral surface, added the surface area of the recess of spiral chute 3234, so the area of contact increase, so, can produce big viscous resistance, obtain high lubricant oil transporting power.
In addition, on the lubricant oil 3102 in the oil passage between sleeve 3231 inner peripheral surfaces and insertion parts 3233 outer surfaces, acting on the centrifugal force that is produced by the rotation of main shaft part 3216, lubricant oil 3102 is in oil passage, relatively to rise away from the state rotation of the face of axis of rotation.In this example, because very close to each other in the oil passage of centrifugal force maximum effect, so, do not flow out towards the below, can suppress the discharge that falls of lubricant oil 3102.Like this, and when insertion parts 3233 sides form spiral chute, compare, can obtain the transporting power of better lubricant oil 3102.
(example 3)
Fig. 7 be the invention process form 3 compressor want portion's sectional view.Fig. 8 is the bottom stereogram of the axle in this example.Fig. 9 is the section amplification figure of the sleeve in this example.
Below, with reference to Fig. 7, Fig. 8 and Fig. 9, this example is described.The structure same with example 1 annotated with same tag, and its detailed description is omitted.
On the main shaft part 3316 of the axle 3311 that constitutes compression unit 3310, viscosity pump 3330 that is immersed in the lubricant oil 3102 and the 2nd viscosity pump 3350 that is being connected with viscosity pump 3330 by intercommunicating pore 3140 have been formed.The 2nd viscosity pump 3350 is formed on the top of viscosity pump 3330.
Below, the viscosity pump 3330 that detailed description is connecting and the structure of the 2nd viscosity pump 3350.
Be formed on the eccentric path 3372 of cylinder blank part 3335 tops, Zhou Jing is littler than the internal diameter of sleeve 3331 in it, and, be located at the relatively position of intercommunicating pore 3,140 one sides with respect to axis of rotation.The upper bottom surface 3380 and the insertion parts 3333 of cylinder blank part 3335 are joined, and like this, restriction insertion parts 3333 is moving about of direction up.In addition, gap between the upper bottom surface 3380 of the top and cylinder blank part 3335 of the insertion parts 3333 after the assembling, shorter than the height dimension (B) of the length direction of engagement groove 3336, like this, even insertion parts 3333 come-ups, insertion parts 3333 can not break away from support unit 3332 yet.
The upper end of eccentric path 3372, the below of arrival main bearing 3114, eccentric path 3372 is communicated with intercommunicating pore 3140.
By the helical spring that is fixed on sleeve 3331 inner peripheral surfaces is helical element 3373, and insertion parts 3333 between, formed oil passage for lubricant oil 3102 circulations.
The sleeve 3331 of general cylindrical shape is the cap shape of top and bottom opening, has formed the roughly spring holding part 3374 of L font in the bottom.The material of sleeve 3331 is to adopt to become more readily available high-precision iron plate stamping material, but also can adopt the leaf spring steel.
The material of helical element 3373, be to adopt spring oil tempering wire rod (SWOV), but also can adopt the non-ferrous metal of the steel of piano wire (SWP), spring steel (SUP) etc. or aluminium etc., also can adopt heat distortion temperature more than 100 ℃, plastic materials (PC, PA) that formability is good etc., get final product so long as have the helical element of spiral fluted lubricant oil transport result.
The 2nd viscosity pump 3350 is by main shaft part 3316, carve guide groove 3351, the main bearing 3114 be located at main shaft part 3316 peripheries and constitute.
At the outer surface of main shaft part 3316, form section and be shaped as platform shape or semicircular guide groove 3351, between main bearing 3114 and guide groove 3351, formed helical oil passage for lubricant oil 3102 circulations.
Below, action, the effect of the compressor of above-mentioned structure are described.
From above-mentioned frequency conversion drive circuit after stator 3106 energising, rotation along with the main shaft part 3316 of axle 3311, lubricant oil 3102 is risen by the rotation towing of sleeve 3331 in the helical element 3373 and the oil passage between insertion parts 3333 outer surfaces that constitute viscosity pump 3330.Then, by intercommunicating pore 3140, arrive the starting point of guide groove 3351.
Then, lubricant oil 3102 is further risen by the rotation towing of main shaft part 3316 in the guide groove 3351 and the path between main bearing 3114 inner peripheral surfaces that constitute the 2nd viscosity pump 3350.
As mentioned above, in this example, by the effect same with example 1, the speed of transporting lubricant oil toward each slide part is fast.And, even when the low speed rotation of 600r/min, also have stable lubricant oil and transport characteristic, so, can not occur because of damage that contacts generation between the slide member and the locking that abrasion cause abnormal wear and compression unit 3310, the compressor that can realize having high reliability.
In addition, during assembling, the upper bottom surface 3380 and the top of insertion parts 3333 of cylinder blank part 3335 coincide, can determine the above-below direction position of insertion parts 3333 in cylinder blank part 3335.In addition, support unit 3332 is engaged with the engagement groove 3336 of insertion parts 3333 lower ends, just can assemble, assembling performance is good.
According to this example, be formed on the helical element 3373 of sleeve 3331 inner peripheral surfaces, utilize helical spring shape and form, more much easier than on the inner peripheral surface of sleeve 3331, processing spiral chute, can constitute viscosity pump 3330 easy as can.
In addition, consider from energy-conservation viewpoint, with systems such as household electric refrigerator and air conditioner desired operating frequencys correspondingly, can adopt line footpath, line section configuration or the different helical spring of the number of turns, like this, can control the lubricant oil upwards of movement in right amount, can have fabulous usability corresponding to various demands.
In addition, being helical spring sleeve 3331 having inserted helical element 3373 interior week in advance, be pressed in the cylinder blank part 3335 that is formed on coaxially on the main shaft part 3316, when sleeve 3331 is installed in main shaft part 3316 lower ends, helical element 3373 is compressed on the upper bottom surface 3380 and spring holding part 3374 that is bearing in cylinder blank part 3335, and be fixed on the inner peripheral surface of sleeve 3331, like this, finished lubricant oil 3102 has been transported necessary spiral chute toward tops.
Therefore, assembling is very reasonable and easy, can realize high productivity.
As mentioned above, among the present invention, the oil passage of main shaft part is almost formed by pump entirely, the detention space of refrigeration agent and lubricant oil is little, so the speed of transporting lubricant oil is fast, and, low centrifugal force when lubricant oil does not just exist with ... low speed rotation, but in path, quilt is towing adhesively, paid and upwarded pressure, so,, also can draw effectively even when low speed rotation.Therefore, obtain practical stable lubricant oil and transport characteristic, provide reliability high compressor.
In addition, among the present invention, except above-mentioned effect, also have the effect of high rate/low cost production, can provide reliability high compressor.
In addition, among the present invention, except above-mentioned effect,, can stop rotation, the come-up of insertion parts conscientiously and sink to, obtain conscientiously that stable lubricant oil transports characteristic, can provide reliability high compressor in when starting with continuously during running.
In addition, among the present invention, except above-mentioned effect, can prevent that insertion parts breaks away from constraint mechanism because of come-up, prevent cylinder blank part inner peripheral surface from contacting, colliding with the insertion parts outer circumferential face and cause abrasion and topple over, obtain practical stable lubricant oil and transport characteristic, can provide reliability high compressor.
In addition, among the present invention, except above-mentioned effect, the possibility that constraint mechanism is lost is extremely low, can provide reliability high compressor.
In addition, among the present invention, except above-mentioned effect, assembling can provide reliability high compressor easily.
In addition, among the present invention, except above-mentioned effect, can obtain bigger lubricant oil transporting power, can provide reliability high compressor.
In addition, among the present invention, except above-mentioned effect, usability is good, and can obtain high productivity, can provide reliability high compressor.
In addition, among the present invention, except above-mentioned effect, the input of compressor reduces, and adds stable lubricant oil supply, can realize low power consumption, can provide reliability high compressor.
In addition, among the present invention, except above-mentioned effect, assembling is easy, and the productivity height can provide the high compressor of reliability that is fit to adopt viscosity pump.
In addition, among the present invention, except above-mentioned effect, the lubricant oil that can suppress to be called the gas choking phenomenon transports obstruction.
In addition, the global warming coefficient of R600a is about 0, can low speed rotation, realize low power consumption, and minimum to the load of earth environment, can provide reliability high compressor.
On the other hand, in the above-mentioned existing structure, if during the maintenance poor dimensional precision of 7115 pairs of parts 7120 of carriage, then parts 7120 can produce warpage in sleeve 7112.Carriage 7115 is formed by the elasticity material, can absorb this warpage.But, if when this warpage is bigger, between sleeve 7112 and parts 7120, produce abrasion, pump capacity is reduced, perhaps wear away powder and be recycled to slide part with lubricant oil, engaging-in slide part pins compression unit.
In addition, owing to parts 7120 are leap rotor 7107 ground, are fixed on the stator 7106 indirectly, so, the mechanism and the operation that need the long parts of connected element 7120 and stator 7106 and fix these long parts.Therefore, the compressor cost is improved.The purpose of this invention is to provide reliability height, compressor that cost is low.
Below, with reference to the example 4 and the example 5 of description of drawings compressor of the present invention.
(example 4)
Figure 10 is the sectional view of the compressor of the invention process form 4.Figure 11 is that it wants portion's sectional view.Figure 12 is that it wants portion's stereogram.
Among Figure 10 to Figure 12, in seal container 1101, depositing lubricant oil 1102, and refrigerant gas 1103 in filling.
Lower end in the main shaft part 1120 of axle 1125 has formed the viscosity pump 1140 that is immersed in the lubricant oil 1102.Viscosity pump 1140 has the cylinder blank part 1142 that is formed on main shaft part 1120 belows, is inserted in insertion part 1145 in the cylinder blank part 1142 and the alar part 1147 that is made of several blades coaxially and rotatably, and above-mentioned several blades and insertion part 1145 form as one.1145 the periphery in the insertion part forms the spiral protrusion 1149 of worm tooth shape, and cylinder blank part 1142 between, formed spiral chute 1150 for lubricant oil 1102 circulations.
It is parts 1151 that insertion part 1145 and alar part 1147 form the formed products with lubricating oil resistance.The inside of parts 1151 is cavities, and 1152 are offering through hole 1153 on top.The 1157th, primary screw passes the end face that through hole 1153 rotatably is combined in parts 1151 cylinder blank part 1142.
The following describes the action of the compressor of above-mentioned structure.
When stator 1136 was switched on, rotor 1137 was with axle 1125 rotations from above-mentioned frequency changer circuit.Thereupon, the eccentric motion of eccentric part 1122 makes piston 1117 to-and-fro motion in cylinder pressure 1113 by connecting rod 1119, the gas that compression sucks, the compressed action of being scheduled to.
Along with the rotation of the main shaft part 1120 of axle 1125, cylinder blank part 1142 also rotates.On the other hand, insertion part 1145 is rotated by the rotation towing of cylinder blank part 1142, still, because its alar part 1147 is subjected to the strong viscous resistance of sense of rotation in lubricant oil 1102, so the rotation number of insertion part 1145 is more much lower than the rotation number of cylinder blank part 1142.Therefore, between cylinder blank part 1142 and insertion part 1145, the rotation number of rotation number that has produced approaching axle 1125 is poor.Like this, lubricant oil 1102 is risen by the rotation towing of cylinder blank part 1142 in spiral chute 1150.Lubricant oil 1102 rises in intercommunicating pore 1160 by the oil pressure that at this moment produces, and passes cross-drilled hole 1162 and arrives the slide part that is formed by bearing portion 1116 inner peripheral surfaces and main shaft part 1120 outer circumferential faces, and it is lubricated.
At this moment, the low centrifugal force when lubricant oil 1102 does not exist with ... low speed rotation, but rise rotatably by feat of the towing power of viscosity, so, even when the low speed rotation of 600rpm, also can stably be drawn.
According to this example, parts 1151 are only by the through hole 1153 on top 1152, rotatably be combined on the end face of cylinder blank part 1142 with screw 1157, so, between cylinder blank part 1142 and insertion part 1145, can not produce the side pressure that causes because of warpage.Therefore, the slip of cylinder blank part 1142 and insertion part 1145 abrasion are few, and the result can not produce that the abrasion powder is recycled to slide part, engaging-in slide part with lubricant oil and problem that compression unit is pinned, can realize the compressor of high reliability.
In addition, because alar part 1147 is subjected to the strong viscous resistance of sense of rotation in lubricant oil 1102, insertion part 1145 rotations own are hindered, so, needn't as existing, insertion part 1145 to be fixed on the stator 1136 indirectly.In addition, owing to only rotatably be combined in the end face of cylinder blank part 1142 by the through hole 1153 usefulness screws 1157 on top 1152, so, to construct extremely simply, component number and operation all reduce, and can realize compressor cheaply.
(example 5)
Figure 13 be the invention process form 5 compressor want portion's sectional view.
Below, with reference to Figure 13 this example is described.With identical construction in the example 4, to annotate with same tag, its detailed description is omitted.
Lower end in the main shaft part 1220 of axle 1225 has formed the viscosity pump 1240 that is immersed in the lubricant oil 1102.
In main shaft part 1220, formed intercommunicating pore 1241 with main shaft part 1220 coaxial shapes, viscosity pump 1240 has and is pressed in the intercommunicating pore 1241 and forms the sleeve 1243 of cylinder blank part 1242, be inserted in insertion part 1246 in the sleeve 1243 and the alar part 1247 that is made of several blades coaxially and rotatably, and above-mentioned several blades and insertion part 1246 form as one.
The material of sleeve 1243, be to adopt to become more readily available iron plate stamping material high-precision, that conduct is good with the glide material congruence of insertion part 1246, but, also can adopt other, as with the good for example plastic article of the glide material congruence of insertion part 1246, leaf spring steel etc.
1246 the periphery in the insertion part forms the spiral protrusion 1249 of worm tooth shape, and sleeve 1243 between, formed spiral chute 1250 for lubricant oil 1102 circulations.
It is parts 1251 that insertion part 1245 and alar part 1247 form the formed products with anti-refrigeration agent, lubricating oil resistance.The inside of parts 1251 is cavities, and 1252 are offering through hole 1253 on top.Primary screw 1257 passes through hole 1253 by packing ring 1257a and screws togather with screw hole 1244, and parts 1251 rotatably are combined on facial 1245.
The following describes the action of the compressor of above-mentioned structure.
When stator 1136 was switched on, rotor 1137 was with axle 1125 rotations from the frequency conversion drive circuit.
Along with the rotation of the main shaft part 1220 of axle 1225, the cylinder blank part 1242 that sleeve 1243 forms also rotates.On the other hand, insertion part 1246 is rotated by the rotation towing of cylinder blank part 1242, still, because its alar part 1247 is subjected to the strong viscous resistance of sense of rotation in lubricant oil 1102, so the rotation number of insertion part 1246 is more much lower than the rotation number of cylinder blank part 1242.Therefore, between cylinder blank part 1242 and insertion part 1246, the rotation number of rotation number that has produced approaching axle 1225 is poor.Like this, lubricant oil is risen by the rotation towing of cylinder blank part 1242 in spiral chute 1250.Lubricant oil passes through hole 1248 by the oil pressure that at this moment produces, and rises in intercommunicating pore 1241, arrives the slide part that is formed by bearing portion 1116 inner peripheral surfaces and main shaft part 1220 outer circumferential faces from cross-drilled hole 1262, and it is lubricated.
At this moment, the low centrifugal force when lubricant oil 1102 does not exist with ... low speed rotation, but rise rotatably by feat of the towing power of viscosity, so, even when the low speed rotation of 600rpm, also can stably be drawn.
According to this example, parts 1251 only the through hole 1253 by top 1252, rotatably be combined on facial 1245 with screw 1257 by packing ring 1257a, so, between sleeve 1243 and insertion part 1246, can not produce the side pressure that causes because of warpage.Therefore, the slip of sleeve 1243 and insertion part 1246 abrasion are few, and the result can not produce that the abrasion powder is recycled to slide part, engaging-in slide part with lubricant oil and problem that compression unit is pinned, can realize the compressor of high reliability.
In addition, on sleeve 1243, produced downward power, this power is lubricant oil 1102 to be pushed to the counter-force of the power of top.This masterpiece is that the load effect of thrust direction is on slip surface.In this example, be slide part between the upward face 1245 of sleeve 1243 and the packing ring 1257a, because packing ring 1257a is 4 ethylene fluoride systems, himself has lubricity, can prevent abnormal wear.
In addition, because alar part 1247 is subjected to the strong viscous resistance of sense of rotation in lubricant oil 1102, insertion part 1246 rotations own are hindered, so, needn't as existing, insertion part 1246 to be fixed on the stator 1136 indirectly.As long as pass the through hole 1253 on top 1252, rotatably be combined on facial 1245 with screw 1257 by packing ring 1257a, so, to construct extremely simply, component number and operation all reduce, and can realize compressor cheaply.
And, according to this example, sleeve 1243 and parts 1251 are screwed togather by packing ring 1257a with screw 1257, viscosity pump 1240 is assembled in advance as parts independently, after rotor 1137 being pressed into axle 1225, to be pressed into intercommunicating pore 1241 as the viscosity pump 1240 of individual components, just finish assembling.Therefore, very reasonable, can realize high production rate.
(example 6)
Figure 14 be the invention process form 6 compressor want portion's sectional view.
Below, with reference to Figure 14 this example is described.With identical construction in the example 4, to annotate with same tag, its detailed description is omitted.
Lower end in the main shaft part 1320 of axle 1325 has formed the viscosity pump 1340 that is immersed in the lubricant oil 1102.
In main shaft part 1320, formed intercommunicating pore 1341 with main shaft part 1320 coaxial shapes, viscosity pump 1340 has and is pressed in the intercommunicating pore 1341 and forms the sleeve 1343 of cylinder blank part 1342, be inserted in insertion part 1346 in the sleeve 1343 and the alar part 1347 that is made of several blades coaxially and rotatably, and above-mentioned several blades and insertion part 1346 are formed separately.
In this example, alar part 1347 forms the sheet iron punching press, and on alar part 1347, the bar 1349 that the steel wire of resistance welding constitutes is pressed in the path hole 1353 that is fixed on bottom 1352 by bar hole 1344.Intercommunicating pore 1341 is communicated with the slide part that is formed by bearing portion 1116 inner peripheral surfaces and main shaft part 1320 outer circumferential faces by cross-drilled hole 1362.
The following describes the action of the compressor of above-mentioned structure.
When stator 1136 was switched on, rotor 1137 was with axle 1325 rotations from the frequency conversion drive circuit.Along with the rotation of the main shaft part 1320 of axle 1325, the cylinder blank part 1342 that sleeve 1343 forms also rotates.On the other hand, insertion part 1346 is rotated by the rotation towing of cylinder blank part 1342, still, because its alar part 1347 is subjected to the strong viscous resistance of sense of rotation in lubricant oil 1102, so the rotation number of insertion part 1346 is more much lower than the rotation number of cylinder blank part 1342.Therefore, between cylinder blank part 1342 and insertion part 1346, the rotation number of rotation number that has produced approaching axle 1325 is poor.Like this, the lubricant oil that enters from through hole 1348 is risen by the rotation towing of cylinder blank part 1342 spiral chute 1350, by the oil pressure that at this moment produces, in intercommunicating pore 1341, rise, pass cross-drilled hole 1362 and arrive the slide part that forms by bearing portion 1116 inner peripheral surfaces and main shaft part 1320 outer circumferential faces, it is lubricated.
At this moment, the low centrifugal force when lubricant oil 1102 does not exist with ... low speed rotation, but rise rotatably by feat of the towing power of viscosity, so, even when the low speed rotation of 600rpm, also can stably be drawn.
According to this example, because the bottom 1352 and the bottom surface sections 1345 of insertion part 1346 and sleeve 1343, the contact of rotatable mutually ground forms the thrust slide part, so, between sleeve 1343 and insertion part 1346, can not produce the side pressure that causes because of warpage.Therefore, the slip of sleeve 1343 and insertion part 1346 abrasion are few, and the result can not produce that the abrasion powder is recycled to slide part, engaging-in slide part with lubricant oil and problem that compression unit is pinned, can realize the compressor of high reliability.
In addition, on sleeve 1343, produced downward power, this power is lubricant oil 1102 to be pushed to the counter-force of the power of top.This masterpiece is that the load effect of thrust direction is on the thrust slide part that is formed by above-mentioned bottom 1352 and bottom surface sections 1345.In this example, in this thrust slide part, the bottom surface sections 1345 of sleeve 1343 forms greatlyyer, so, can press by attenuating face, improve wear resistance performance.
In addition,, be folded between bottom 1352 and the bottom surface sections 1345, also can improve wear resistance performance more though illustration in above-mentioned each form of implementation not has the partition of wear resistance performance to 4 ethylene fluorides or Valve Steel (バ Le Block ス チ ユ one Le) etc.
In addition, because alar part 1347 is subjected to the strong viscous resistance of sense of rotation in lubricant oil 1102, insertion part 1346 rotations own are hindered, so, needn't be as existing, with the parts of the rotation that hinders insertion part 1346, insertion part 1346 is fixed on the stator 1136 indirectly, construct extremely simply, component number and operation all reduce, and can realize compressor cheaply.
According to above each example, sleeve 1343 is inserted in insertion part 1346, be pressed into the bar 1349 of fixing alar part 1347 in the path hole 1353 of bottom 1352 by bar hole 1344, viscosity pump 1340 is assembled in advance as parts independently, after rotor 1137 being pressed into axle 1325, to be pressed into intercommunicating pore 1341 as the viscosity pump 1340 of individual components, just finish assembling.Therefore, very reasonable, can realize high production rate.
In addition, in the example 4 to 6, all be on the insertion part, to form spiral protrusion, still, also can on the cylinder blank part, form spiral protrusion, form spiral chute for the lubricant oil circulation.
In addition, example 4 is to implementing in the attitude 6, with shuttle inner suspended pattern compressor is that example is illustrated, but, the present invention also is applicable to internal fixation type compressors such as the rotary compressor of longitudinal type and scroll-type compression, so long as the compressor that the lower end of axle extends in the lubricant oil can both adopt the present invention.
In addition, also unqualified to the kind of gas, lubricant oil.Can adopt HFC, HC, CO
2Deng the refrigeration agent of environmental sound, and has the lubricant oil of intermiscibility with these refrigeration agents.The component parts of viscosity pump can adopt the material of anti-above-mentioned gas, anti-lubricant oil, all can bring into play effect of the present invention.
As mentioned above, among the present invention, do not need the insertion part is fixed on parts on the stator, the compressor of the high and low cost of reliability can be provided.
In addition, among the present invention, except above-mentioned effect, can adopt the material of high abrasion resistance, improve reliability more.
In addition, among the present invention, except above-mentioned effect, can in advance viscosity pump be assembled into one, so, compressor more cheaply can be provided.
In addition, among the present invention, except above-mentioned effect, viscosity pump is used for the compressor that yielding support, the compressor of the high and low cost of reliability can be provided.
In addition, among the present invention, except above-mentioned effect, can low-speed running, the compressor of the high and low cost of reliability can be provided.
Below, with reference to description of drawings compressor example 7 of the present invention to example 8.
(example 7)
Figure 15 is the sectional view of the compressor of the invention process form 7.Figure 16 is that it wants portion's sectional view.
Among Figure 15, Figure 16, depositing lubricant oil 2102 in seal container 2101, refrigerant gas 2103 in filling simultaneously.
Lower end in the main shaft part 2120 of axle 2125 has formed the viscosity pump 2140 that is immersed in the lubricant oil 2102.Viscosity pump 2140 has the cylinder blank part 2142 that is formed on main shaft part 2120 belows, is inserted in insertion parts 2145 in the cylinder blank part 2142, the carriage 2143 of U font roughly coaxially.This carriage 2143 is made of elastomer, and its two ends are fixed on the bottom of stator 2136.The central part of carriage 2143 engages with the underpart of insertion parts 2145, like this, insertion parts 2145 is not being supported revolvably.
In the interior week of cylinder blank part 2142, form the spiral protrusion 2149 of worm tooth shape, and insertion parts 2145 between, formed spiral chute for lubricant oil 2102 circulations.
The following describes the action of the compressor of above-mentioned structure.
When stator 2136 was switched on, rotor 2137 was with axle 2125 rotations from above-mentioned frequency conversion drive circuit.Thereupon, the eccentric motion of eccentric part 2122 makes piston 2117 to-and-fro motion in cylinder pressure 2113 by connecting rod 2119, the gas that compression sucks, the compressed action of being scheduled to.
Along with the rotation of the main shaft part 2120 of axle 2125, cylinder blank part 2142 also rotates.On the other hand, insertion parts 2145 is engaging with the central part of carriage 2143, and this carriage 2143 is roughly U font, and its two ends are fixed on the bottom of stator 2136.Therefore, insertion parts 2145 be not supported revolvably.Like this, lubricant oil is risen by the rotation towing of cylinder blank part 2142 in spiral chute, and the oil pressure by producing this moment rises in intercommunicating pore 2160.Then, lubricant oil passes cross-drilled hole 2162 and arrives the slide part that is formed by bearing portion 2116 inner peripheral surfaces and main shaft part 2120 outer circumferential faces, and it is lubricated.
At this moment, the low centrifugal force when lubricant oil 2102 not only exists with ... low speed rotation, but rise rotatably by feat of the towing power of viscosity.In addition, in this example,, rotate the face of accepting lubricant oil of side inner peripheral surface, added the surface area of spiral protrusion, so the area of contact increase with lubricant oil can produce big viscous resistance by the spiral protrusion 2149 that is located on the cylinder blank part.As a result, can obtain strong lubricant oil transporting power.
In addition, in cylinder blank part 2142, on the spiral chute and the lubricant oil between the insertion parts 2145 in week, acting on the centrifugal force that produces by the rotation of axle 2120.Therefore, lubricant oil is with spiral trough valley face relatively, promptly relatively away from the state of the face of the axis of rotation of axle 2120, and rotation is risen.Be subjected near the spiral trough valley face of centrifugal action, very close to each other, so lubricant oil can not flow out, can avoid the outflow that falls of lubricant oil downwards.
Like this, can obtain strong lubricant oil transport force,, also can stably be drawn even when the low speed rotation of 600r/min.
According to this example, compression unit is flexibly being supported, and, insertion parts 2145 is engaging with the central part of the carriage 2143 that elastomer constitutes, insertion parts 2145 is not being swum in cylinder blank part 2142 revolvably, so, between cylinder blank part 2142 and insertion parts 2145, can not produce the side pressure that causes because of warpage.Therefore, the slip of cylinder blank part 2142 and insertion parts 2145 abrasion are few.As a result, can not produce that the abrasion powder is recycled to slide part, engaging-in slide part with lubricant oil and problem that compression unit is pinned, can realize the compressor of high reliability.
(example 8)
Figure 17 be the invention process form 8 compressor want portion's sectional view.Figure 18 is that it wants portion's ssembly drawing.Below, with reference to Figure 17, Figure 18 this example is described.With identical construction in the example 7, to annotate with same tag, its detailed description is omitted.
Lower end in the main shaft part 2220 of axle has formed the viscosity pump 2240 that is immersed in the lubricant oil 2102.
In main shaft part 2220, formed with the intercommunicating pore 2260 and the socket joint of main shaft part 2220 coaxial shapes and used hole 2254.Viscosity pump 2240 have be pressed into socket joint with in the hole 2254 and form cylinder blank part 2242 sleeve 2251, be fixed on helical spring 2253 in the sleeve 2251, be inserted in insertion parts 2145 and carriage 2143 in the sleeve 2251 coaxially and rotatably as helical element.This carriage 2143 is made of elastomer, is roughly U font, and its two ends are fixed on the bottom of stator 2136, and its central part engages with the lower end of insertion parts 2145, like this insertion parts 2145 is not being supported revolvably.
The length of helical spring 2253 is greater than the length that deducts the height of spring holding part 2251 from the inner peripheral surface total length of sleeve 2251.The material of helical spring 2253, be to adopt spring oil tempering wire rod (JIS:SWOV), but also can adopt the non-ferrous metal of the steel of piano wire (JIS:SWP), spring steel (JIS:SUP) etc. or aluminium etc., also can adopt heat distortion temperature more than 100 ℃, the resin of polycarbonate (PC) (PC) that formability is good or polyamide (PA) etc.
The following describes the action of the compressor of above-mentioned structure.
When stator 2136 was switched on, rotor 2137 was with axle 2125 rotations from above-mentioned frequency conversion drive circuit.By with example 7 in same effect, be lubricated oil supply.
According to this example, utilize helical spring shape, it is as the spiral chute on the inner peripheral surface of axle underpart, more much easier than process spiral chute on the inner peripheral surface of axle underpart.In addition, consider from energy-conservation viewpoint, with systems such as household electric refrigerator and air conditioner desired operating frequencys correspondingly, can adopt line footpath, line section configuration or the different helical spring of the number of turns, like this, can control the lubricant oil upwards of movement in right amount, can have fabulous usability corresponding to various demands.In addition, in advance at the sleeve 2251 that has inserted helical spring 2253 interior week, being pressed into the socket joint that is formed on coaxially on the main shaft part 2220 uses in the hole 2254, when sleeve 2251 is installed in main shaft part 2220 lower ends, helical spring 2253 is compressed the interior week directly between the spring holding part 2252 of the step of poor formation and sleeve underpart that is bearing in Zhou Jing and intercommunicating pore 2260 in the sleeve 2251, and be fixed on the inner peripheral surface of sleeve 2251, like this, finished lubricant oil has been transported necessary spiral chute toward the top.Therefore, it is very reasonable to assemble, and can realize high productivity.
As mentioned above, among the present invention, can guarantee that the area that contacts with lubricant oil, this area of contact can produce to make the lubricant oil necessary viscous resistance that rises.So lubricant oil is increased by the power of viscosity towing, can obtain big lubricant oil transport force.
In addition, among the present invention, except above-mentioned effect, utilize helical spring shape, compare the assembling easy processing with carrying out spiral fluted processing as spiral chute.In addition,, like this, can control the lubricant oil upwards of movement in right amount, have fabulous usability by adopting line footpath, line section configuration or the different helical spring of the number of turns.In addition,, also finished the spiral chute that constitutes by helical spring, boosted productivity in the bulged-in while of sleeve.
In addition, among the present invention, except above-mentioned effect, can carry out low-speed running, suppress the input of compressor, add supplying lubricating oil stably, can lower the power consumption of household electric refrigerator and air conditioner.
In addition, among the present invention, except above-mentioned effect, in the action of compression unit, though insertion parts is being swum in cylinder blank part inside, but can not rotate, like this, formed lubricant oil by the structure of viscosity towing, and, can prevent contacting or abrasion that collision causes or topple over of cylinder blank part inner peripheral surface and insertion parts outer circumferential face, thereby prevent that pump capacity from reducing and the abnormal wear and the pinning of compression unit.Therefore, can guarantee reliability chronically.
In addition, among the present invention, except above-mentioned effect, will not be fixed on the seal container by component parts, insertion parts is being swum in the cylinder blank part, can not produce the side pressure that causes because of warpage between cylinder blank part and insertion parts, slip abrasion between cylinder blank part and the insertion parts are few, so, viscosity pump is flexibly being supported, can realize the compressor that reliability is high.
Below, with reference to description of drawings the invention process form 9 to 10.But the present invention is not limited by this example.
(example 9)
Figure 19 is the sectional view of the compressor of the invention process form 9.Figure 20 be this example want portion's sectional view.
Among Figure 19, Figure 20, depositing lubricant oil 4102 in seal container 4101, refrigerant gas 4103 in filling simultaneously.
Lower end in the main shaft part 4120 of axle 4125 has formed the viscosity pump 4140 that is immersed in the lubricant oil 4102.
Below, the structure of detailed description viscosity pump 4140.
On main shaft part 4120, form cylinder blank part 4141, the sleeve 4142 of hollow in the upper fixed of cylinder blank part 4141.Sleeve 4142 is general cylindrical shape, presents the cap shape of lower aperture, and its material is to adopt to become more readily available high-precision iron plate stamping material, but also can adopt the leaf spring steel.
Be inserted in the insertion parts 4143 in cylinder blank part 4141 and the sleeve 4142 coaxially, by plastic materials formations such as (for example PPS, PBT, PEEK), the thermal conductivity of these materials is lower than the metallic material of making axle 4125, and has anti-refrigeration agent, lubricating oil resistance.At the outer surface of insertion parts 4143, carve and establishing spiral chute 4144, and formed the oil passage 4145 that passes through for lubricant oil between the inner peripheral surface of sleeve 4142.Insertion parts 4143 external diameters and sleeve 4142 internal diameters poor, promptly to mate the gap be 100 μ m to 500 μ m.In addition, insertion parts 4143, end face is provided with bolt hole 4146 thereon, and thereunder the side is provided with several arms 4147 of general horizontal direction.
Side below insertion parts 4143 is provided with the arm 4147 of general horizontal direction, on these arms 4147, is fixing the 1st permanent magnet 4148 respectively.In addition, at the bottom of seal container 4101 inner face, disposing the 2nd permanent magnet 4149 by joint 4153.The S utmost point of the 2nd permanent magnet 4149 and is spaced from each other the pre-fixed gap that can give full play to magnetic force at the S utmost point of sense of rotation and the 1st permanent magnet 4148 in opposite directions.In addition, also can make the N utmost point toward each other.
The following describes the action of the compressor of above-mentioned structure.
Along with the rotation of axle 4125, main shaft part 4120 rotations, the sleeve of fixing 4142 is synchronously rotation also.On the other hand, insertion parts 4143 is by the rotation towing of sleeve 4142, still, because the 1st permanent magnet 4148 and the 2nd permanent magnet 4149 homopolar-repulsions on the insertion parts, so the rotation of insertion parts 4143 is prevented from.As a result, lubricant oil, is risen in spiral helicine oil passage 4145 by towing adhesively rotatably at the inner peripheral surface of sleeve 4142.
At this moment, the low centrifugal force when lubricant oil 4102 does not exist with ... low speed rotation, but rise rotatably by feat of the towing power of viscosity, so, even when the low speed rotation of 600rpm, also can stably be drawn.
As mentioned above, according to this example, the effect of repelling each other by the 1st permanent magnet 4148 and the 2nd permanent magnet 4149, with contactless state insertion parts 4143 is not being retrained revolvably, so, between the parts relevant, can not produce abrasion and tired because of contact with the constraint of insertion parts 4143.As a result, the structure of viscosity pump 4140 can be kept for a long time and stably, the compressor that reliability is high can be realized.
In addition, according to this example, in compressor structure, the 2nd permanent magnet 4149 is positioned near the bottom inner face of seal container 4101.Therefore, when being fixed on the seal container 4101, do not need the joint 4153 of complicated shape, construct extremely simple to the 2nd permanent magnet 4149.
In addition, though the 2nd permanent magnet 4149 is fixed on the seal container 4101 directly or indirectly,, the 2nd permanent magnet 4149 and the 1st permanent magnet 4148 are homopolarities, are often keeping contactless state.Therefore, sound or vibration from compression unit 4110 and electrodynamic element 4135 send can not be delivered to seal container 4101 by the 2nd permanent magnet 4149 from the 1st permanent magnet 4148.
In addition, according to this example, insertion parts 4143 is rotatably to combine with the main shaft part 4120 of axle 4125 by packing ring 4151 with bolt 4150, so, by this connecting part, insertion parts 4143 is limited with the relative position that is fixed on the sleeve 4142 of main shaft part 4120 lower ends.Therefore, total certain clearance that keeps between insertion parts 4143 and sleeve 4142, can not produce the side pressure that causes because of warpage, simultaneously, also by the oil pressure that produces between insertion parts 4143 and the sleeve 4142, insertion parts 4143 is kept with the gap of sleeve 4142, and the slip abrasion that insertion parts 4143 and sleeve are 4142 are few.
In addition, in this example, be that spiral chute 4144 is set on the outer circumferential face of insertion parts 4143, form spiral helicine oil passage 4145.But, also can on the inner peripheral surface of sleeve 4142, spiral chute be set, form oil passage 4145.Rotate the face of accepting lubricant oil 4102 of side inner peripheral surface, added the surface area of spiral chute recess, the area of contact of lubricant oil 4102 increases, so, produce big viscous resistance, can obtain strong lubricant oil transporting power.In addition, on the lubricant oil 4102 in the oil passage 4145 between sleeve 4142 inner peripheral surfaces and insertion parts 4143 outer surfaces, acting on the centrifugal force that produces by the rotation of main shaft part 4120, lubricant oil is in oil passage 4145, to be partial to the state away from the face of axis of rotation, rotation is risen.In the position that is subjected to most centrifugal action, very close to each other, so lubricant oil can not flow out, can suppress the discharge that falls of lubricant oil downwards.Therefore, compare the lubricant oil transporting power that more to be strengthened with formation spiral chute 4144 on insertion parts 4143.
(example 10)
Figure 21 is the sectional view of the compressor of the invention process form 10.Figure 22 be this example want portion's sectional view.
Below, with reference to Figure 21, Figure 22 this example is described.With identical construction in the example 9, to annotate with same tag, its detailed description is omitted.
Lower end in the main shaft part 4120 of axle 4125 has formed the viscosity pump 4240 that is immersed in the lubricant oil 4202.
Describe the structure of viscosity pump 4240 below in detail.
On main shaft part 4120, form cylinder blank part 4241, below cylinder blank part 4241, fixing the sleeve 4242 of hollow.Sleeve 4242 is general cylindrical shape, presents the cap shape of lower aperture, and its material is to adopt to become more readily available the stamping material of high-precision iron plate, but also can adopt other leaf spring steel.
Be inserted in the insertion parts 4243 in cylinder blank part 4241 and the sleeve 4242 coaxially, by plastic materials formations such as (for example PPS, PBT, PEEK), the thermal conductivity of these materials is lower than the metallic material of making axle 4125, and has anti-refrigeration agent, lubricating oil resistance.Outer surface in insertion parts 4243 is being established spiral chute 4244 quarter, and has formed the oil passage 4245 for the lubricant oil circulation between the inner peripheral surface of sleeve 4242.The external diameter of insertion parts 4243 and the internal diameter of sleeve 4242 poor, promptly to mate the gap be 100 μ m to 500 μ m.In addition, insertion parts 4243, end face is provided with bolt hole 4246 thereon, below the side be provided with several arms 4247 of general horizontal direction.
Side below insertion parts 4243 is provided with the arm 4247 of general horizontal direction, on these arms 4247, is fixing the 1st permanent magnet 4248 respectively.In addition, disposing the 2nd permanent magnet 4249.The S utmost point of the 2nd permanent magnet 4249 and is spaced from each other the pre-fixed gap that can give full play to magnetic force at the S utmost point of sense of rotation and the 1st permanent magnet 4248 in opposite directions.One end of the 2nd permanent magnet 4249 is fixed on the roughly the other end of the joint 4253 of L font, and this joint 4253 is fixed on the bottom of stator 4136.Also can make the N utmost point toward each other in addition.
The following describes the action of the compressor of above-mentioned structure.
Along with the rotation of axle 4125, main shaft part 4120 rotations, the sleeve of fixing 4242 is synchronously rotation also.On the other hand, insertion parts 4243 is by the rotation towing of sleeve 4242, still, because the 1st permanent magnet 4248 and the 2nd permanent magnet 4249 homopolar-repulsions on the insertion parts, so the rotation of insertion parts 4243 is prevented from.As a result, lubricant oil, is risen in spiral helicine oil passage 4245 by towing adhesively rotatably at the inner peripheral surface of sleeve 4242.
At this moment, the low centrifugal force when lubricant oil 4202 does not exist with ... low speed rotation, but rise rotatably by feat of the towing power of viscosity, so, even when the low speed rotation of 600rpm, also can stably be drawn.
As mentioned above, in this example, the effect by same with example 9 is not retraining insertion parts 4243 revolvably with contactless state, so, between the parts relevant, can not produce abrasion and tired because of contact with the constraint of insertion parts 4243.As a result, the structure of viscosity pump 4240 can be kept for a long time and stably, the compressor that reliability is high can be realized.
In addition, according to this example, have the insertion parts 4243 of the 1st permanent magnet 4248, combine with main shaft part 4120 by bolt 4250, and, the 2nd permanent magnet 4249 is fixed on the bottom of stator 4136 by joint 4253, so, the whole parts that constitute viscosity pump 4240 can be installed on electrodynamic element 4135 or the compression unit 4110 in advance, they are installed in the seal container 4101 in the lump, assembling is easy, the productivity height.
In addition, in this example, be the 2nd permanent magnet 4249 to be fixed on the bottom of the electrodynamic element 4135 with stator 4136, still, also can the 2nd permanent magnet 4249 be fixed on the compression unit 4110 of cylinder body 4115 grades by joint 4253 by joint 4253.
As mentioned above, among the present invention, between the parts relevant, can not produce abrasion and tired because of contact with the constraint of insertion parts.The structure of viscosity pump can be kept for a long time and stably, the compressor that reliability is high can be realized.
In addition, among the present invention, construct very simple, the 2nd permanent magnet and the 1st permanent magnet always keep contactless state because of homopolarity simultaneously, the sound or the vibration of sending from compression unit and electrodynamic element, can not be delivered to outside the seal container by the 2nd permanent magnet, can provide reliability high compressor from the 1st permanent magnet.
In addition, among the present invention, the whole parts that constitute viscosity pump can be installed on electrodynamic element or the compression unit in advance, they are installed in the seal container in the lump, so assembling is easy, the productivity height can provide reliability high compressor.
In addition, among the present invention, can suppress the unusual sound that causes because of vibration, can provide reliability high compressor.
In addition, among the present invention, comprise the running of the operating frequency between 600～1200r/min at least,, can keep the structure of viscosity pump for a long time and stably, obtain low power consumption, can improve the high compressor of reliability so the input of compressor is little.
In addition, among the present invention, at the permanent magnet contactless state that causes of effect that repels each other, insertion parts is not retrained revolvably, between the parts relevant with the constraint of insertion parts, can can not keep the structure of viscosity pump for a long time and stably, provide reliability high compressor because of contact produces abrasion and tired.
At contactless state insertion parts is not retrained revolvably, can keep the structure of viscosity pump for a long time and stably, can provide reliability high compressor.
Below, with reference to description of drawings example 11 to 13 of the present invention.But the present invention is not limited by these examples.
(example 11)
Figure 23 is the sectional view of the compressor of the invention process form 11.Figure 24 be this example compressor want portion's sectional view.Figure 25 be in this example insertion parts want portion's enlarged view.
Among Figure 23, Figure 24, Figure 25, depositing lubricant oil 5102 in seal container 5101, refrigerant gas 5103 in filling simultaneously.
Lower end in the main shaft part 5120 of axle 5125 has formed the viscosity pump 5140 that is immersed in the lubricant oil 5102.
Below, the structure of detailed description viscosity pump 5140.
On main shaft part 5120, form hollow portion 5141, below hollow portion 5141, fixing the sleeve 5142 of hollow, form cylinder blank part 5143.Sleeve 5142 is general cylindrical shape, and wall thickness is about 0.5mm to 1.0mm, presents the cap shape of lower aperture, and its material is to adopt to become more readily available high-precision iron plate stamping material, but also can adopt the leaf spring steel.
Insert the insertion parts 5144 of cylinder blank part 5143 coaxially, peripheral direction up is provided with several juts 5145, with the support 5146 (thin-walled portion that is equivalent to sleeve 5142) of sleeve 5142 upper-end surfaces, with the face state of contact with the thrust face of jut 5145 rotatably suspension.The difference of the external diameter of the internal diameter of cylinder blank part 5143 and jut 5145 is 0.1mm to 0.5mm.The setting method of insertion parts 5144 is, in advance insertion parts 5144 is inserted in the sleeve 5142, after on the support 5146 that jut 5145 is suspended in sleeve 5142 upper-end surfaces, carried out the fixedly operation of sleeve 5142, like this, the operation that is provided with of insertion parts 5144 is also side by side finished.In addition, also can be configured in jut 5145 on the free joint 5154 of footpath direction elastically deformable, be pressed into sleeve 5142 and be fixed in the hollow portion 5141 after, again insertion parts 5144 is inserted.
In addition, insertion parts 5144, by synthetic resin material formations such as (for example PPS, PBT, PEEK), the thermal conductivity of these materials is lower than the metallic material of making axle 5125, and has anti-refrigeration agent, lubricating oil resistance.Outer surface in insertion parts 5144 is being established spiral chute 5147 quarter, and has formed the helical oil passage 5148 for the lubricant oil circulation between the inner peripheral surface of sleeve 5142.The external diameter of the internal diameter of sleeve 5142 and insertion parts 5144 poor equates with the difference of the external diameter of the internal diameter of cylinder blank part 5143 and jut 5145 or big slightly.
On main shaft part 5120, be provided with the hollow portion 5141 that constitutes by large-diameter portion 5151 and minor diameter part 5152.Jut 5145 is held under the arm between the step 5153 and support 5146 that is formed by large-diameter portion 5151 and minor diameter part 5152, and left certain clearance up and down, like this, insertion parts 5144 can not supported in cylinder blank part 5143 with floating.
The following describes the action of the compressor of above-mentioned structure.
Along with the rotation of axle 5125, main shaft part 5120 rotations, cylinder blank part 5143 is synchronously rotation also.On the other hand, the thrust face of the jut 5145 of insertion parts 5144 rotatably is suspended on the support 5146 of sleeve 5142, and insertion parts 5144 is by the rotation towing of cylinder blank part 5143, but insertion parts 5144 is not being supported revolvably by carriage 5149.
As a result, lubricant oil, is risen in spiral helicine oil passage 5148 by towing adhesively rotatably at the inner peripheral surface of cylinder blank part 5143.At this moment, the low centrifugal force when lubricant oil 5102 does not exist with ... low speed rotation, but rise rotatably by feat of the towing power of viscosity, so, even when the low speed rotation of 600rpm, also can stably be drawn.
According to this example, the thrust face that is formed on the jut 5145 on the insertion parts 5144 is that face contacts with support 5146, and like this, the relative position of insertion parts 5144 and cylinder blank part 5143 is defined.Therefore, between insertion parts 5144 and cylinder blank part 5143, keep certain clearance, can not produce the excessive side pressure that causes because of warpage, add the effect of the fluid oil film pressure that produces in spiral chute 5147, the slip abrasion between insertion parts 5144 and the cylinder blank part 5143 are few.
As a result, can not produce that the abrasion powder is recycled to slide part, engaging-in slide part with lubricant oil and problem that compression unit is pinned, can realize the compressor of high reliability.
In addition, in this example, be that sleeve 5142 is fixed on the hollow portion 5141, this hollow portion 5141 is located at the below of axle 5125, and, the upper-end surface of sleeve 5142 as support 5146, the thinner wall section of utilizing sleeve 5142 is as support 5146, so, needn't carry out complicated processing to sleeve 5142 and axle 5125, cost is low, the productivity height.
In addition, in this example, comprising the insertion parts 5144 of jut 5145, spiral chute 5147, pod 5150, is integrally formed with the synthetic resin with self-lubricity, so cost is low, and the precision height, wear resistance performance is good.
In addition, in this example, be that the outer circumferential face in insertion parts 5144 is provided with spiral chute 5147, form spiral helicine oil passage 5148.But, also can spiral chute be set at the inner peripheral surface of sleeve 5142, form oil passage 5148.Rotate the face of accepting lubricant oil of side inner peripheral surface, added the surface area of spiral chute recess, with the area of contact increase of lubricant oil, so, can produce big viscous resistance, obtain strong lubricant oil transporting power.
(example 12)
Figure 26 is the sectional view of the compressor of the invention process form 12.Figure 27 be this example compressor want portion's sectional view.
Below, with reference to Figure 26, Figure 27 example of the present invention is described, with identical construction in the example 11, to annotate with same tag, its detailed description is omitted.
Lower end in the main shaft part 5220 of axle 5125 has formed the viscosity pump 5240 that is immersed in the lubricant oil 5102.
Below, the structure of detailed description viscosity pump 5240.
Form hollow portion 5241 on main shaft part 5220, below hollow portion 5241, extrapolation is being fixed the sleeve 5242 of hollow, forms cylinder blank part 5243.Sleeve 5242 is the general cylindrical shape with large-diameter portion 5251 and minor diameter part 5252, and wall thickness is about 0.5mm to 1.0mm, presents the cap shape of lower aperture, and its material is to adopt to become more readily available high-precision iron plate stamping material, but also can adopt the leaf spring steel.
Insert the insertion parts 5244 of cylinder blank part 5243 coaxially, peripheral direction up is provided with several juts 5245, the support 5246 that forms with the large-diameter portion 5251 of sleeve 5242 and the step between the minor diameter part 5252, with the face state of contact with the thrust face of jut 5245 rotatably suspension.In addition, the thrust face shape of support 5246 is tapers, and therewith correspondingly, the thrust face shape of jut 5245 also is taper.The difference of the external diameter of the internal diameter of support 5246 and jut 5245 is 0.1mm to 0.5mm.The setting method of insertion parts 5244 is, in advance insertion parts 5244 is inserted in the sleeves 5242, after on the support 5246 that jut 5245 is suspended in sleeve 5242 upper-end surfaces, the extrapolation of carrying out sleeve 5242 is operation fixedly, like this, the operation that is provided with of insertion parts 5244 is also side by side finished.
As the inhibition mechanism 5270 that suppresses insertion parts 5244 rotations, several alar parts 5249 of giving prominence to towards peripheral direction from the lower side of insertion parts have been formed.
The following describes the action of the compressor of above-mentioned structure.
Along with the rotation of axle 5125, main shaft part 5220 rotations, cylinder blank part 5243 is synchronously rotation also.On the other hand, the thrust face of the jut 5245 of insertion parts 5244 rotatably is suspended on the support 5246 that large-diameter portion 5251 and minor diameter part 5252 by sleeve 5242 form, and insertion parts 5244 is by the rotation towing of cylinder blank part 5243.But, because alar part 5249 is subjected to the strong viscous resistance of sense of rotation in lubricant oil 5102, so the speed of insertion parts 5244 is more much lower than the speed of cylinder blank part 5243.Therefore, between cylinder blank part 5243 and insertion parts 5244, the speed of speed that has produced approaching axle 5125 is poor.
As a result, lubricant oil, is risen in spiral helicine oil passage 5248 by towing adhesively rotatably at the inner peripheral surface of cylinder blank part 5243.At this moment, the low centrifugal force when lubricant oil 5102 does not exist with ... low speed rotation, but rise rotatably by feat of the towing power of viscosity, so, even when the low speed rotation of 600rpm, also can stably be drawn.
According to this example, the thrust face that is formed on the jut 5245 on the insertion parts 5244 is that face contacts with support 5246, and like this, the relative position of insertion parts 5244 and cylinder blank part 5243 is defined.Therefore, between insertion parts 5244 and cylinder blank part 5243, keep certain clearance, can not produce the excessive side pressure that causes because of warpage, add the fluid oil film pressure that in spiral chute 5247, produces, and the thrust face of the thrust face of jut 5245 and support 5246 is tapers, promote the generation of fluid oil film pressure, so the slip abrasion between insertion parts 5244 and the cylinder blank part 5243 are few.
As a result, can not produce that the abrasion powder is recycled to slide part, engaging-in slide part with lubricant oil and problem that compression unit is pinned, can realize the compressor of high reliability.
In addition, in this example, be that sleeve 5242 is fixed on the hollow portion 5241, this hollow portion 5241 is located at axle 5125 below, and, the step of the large-diameter portion 5251 of sleeve 5242 and minor diameter part 5252 as support 5246.Because the step shape that utilizes sleeve 5242 is as support 5246, so, needn't carry out complicated processing to sleeve 5242 and axle 5125, cost is low, the productivity height.
In addition,, hindered the rotation of sleeve 5242 because alar part 5249 is subjected to the strong viscous resistance of sense of rotation in lubricant oil 5102, so, will not be fixed on indirectly on stator 5136 grades by sleeve 5242, to construct extremely simply, component and operation are few.Therefore, can have the high viscosity pump of productivity.
(example 13)
Figure 28 is the sectional view of the compressor of the invention process form 13.Figure 29 be this example compressor want portion's sectional view.
Below, with reference to Figure 28, Figure 29 example of the present invention is described, with identical construction in the example 11, to annotate with same tag, its detailed description is omitted.
Lower end in the main shaft part 5320 of axle 5125 has formed the viscosity pump 5340 that is immersed in the lubricant oil 5102.
Below, the structure of detailed description viscosity pump 5340.
On main shaft part 5320, form hollow portion 5341, below hollow portion 5341, fixing to extrapolation the sleeve 5342 of hollow, form cylinder blank part 5343.Sleeve 5342 is the general cylindrical shape with large-diameter portion 5351 and minor diameter part 5352, and wall thickness is about 0.5mm to 1.0mm, presents the cap shape of lower aperture, and its material is to adopt to become more readily available high-precision iron plate stamping material, but also can adopt the leaf spring steel.
Insert the insertion parts 5344 of cylinder blank part 5343 coaxially, peripheral direction up is provided with several juts 5345, the support 5346 that forms with the large-diameter portion 5351 of sleeve 5342 and the step between the minor diameter part 5352, with the face state of contact with the thrust face of jut 5345 rotatably suspension.In addition, the thrust face shape of support 5346 is tapers, and therewith correspondingly, the thrust face shape of jut 5345 also is taper.The difference of the external diameter of the internal diameter of support 5346 and jut 5345 is 0.1mm to 0.5mm.
As the inhibition mechanism 5370 that suppresses insertion parts 5344 rotations, on the arm 5349 of insertion parts 5344, fixing permanent magnet 5350 respectively, in addition, the bottom of seal container 5101 inner face, with permanent magnet 5350 position in opposite directions, fixing permanent magnet 5360, this permanent magnet 5360 is spaced from each other the pre-fixed gap that can give full play to magnetic force with permanent magnet 5350.In addition, the forward surface of permanent magnet 5350 and permanent magnet 5360 is heteropoles.
The following describes the action of the compressor of above-mentioned structure.
Along with the rotation of axle 5125, main shaft part 5320 rotations, cylinder blank part 5343 is synchronously rotation also.On the other hand, the thrust face of the jut 5345 of insertion parts 5344 rotatably is suspended on the support 5346 that large-diameter portion 5351 and minor diameter part 5352 by sleeve 5342 form, and insertion parts 5344 is by the rotation towing of cylinder blank part 5343.But, because permanent magnet 5350 and permanent magnet 5360 attract each other, so the rotation of insertion parts 5344 is prevented from.
As a result, lubricant oil, is risen in spiral helicine oil passage 5348 by towing adhesively rotatably at the inner peripheral surface of cylinder blank part 5343.At this moment, the low centrifugal force when lubricant oil 5102 does not exist with ... low speed rotation, but rise rotatably by feat of the towing power of viscosity, so, even when the low rotation of 600rpm, also can stably be drawn.
According to this example, the thrust face that is formed on the jut 5345 on the insertion parts 5344 is that face contacts with support 5346, and like this, the relative position of insertion parts 5344 and cylinder blank part 5343 is defined.Therefore, between insertion parts 5344 and cylinder blank part 5343, keep certain clearance, can not produce the excessive side pressure that causes because of warpage, add the fluid oil film pressure that in spiral chute 5347, produces, and the thrust face of the thrust face of jut 5345 and support 5346 is tapers, promote the generation of fluid oil film pressure, so the slip abrasion between insertion parts 5344 and the cylinder blank part 5343 are few.
As a result, can not produce that the abrasion powder is recycled to slide part, engaging-in slide part with lubricant oil and problem that compression unit is pinned, can realize the compressor of high reliability.
In addition, on the arm 5349 of insertion parts 5344, fixing permanent magnet 5350 respectively, the bottom of seal container 5101 inner face, with permanent magnet 5350 position in opposite directions, fix permanent magnet 5360 with separating a fixed gap, like this, hindering the rotation of insertion parts 5344.Therefore, will insertion parts 5344 not be fixed on indirectly on stator 5136 grades, construct extremely simply, component number and operation are few.Therefore, can have the high viscosity pump of productivity.
In addition, in this example, be the attraction force of utilizing permanent magnet, but, also the homopolarity of permanent magnet can be disposed opposite to each other in the sense of rotation of axle 5125, obtain the mutual expelling force of permanent magnet, rotation with this mutual expelling force prevention insertion parts 5344 also can obtain same action effect.
In addition, in this example, be permanent magnet configuration in lubricant oil 5102, like this, the iron filings (for example wearing away powder) that swim in lubricant oil 5102 are reclaimed by magnet, so, in the cyclic process of lubricant oil, can prevent engaging-in viscosity pump of iron powder and sliding position, can improve reliability.
In addition, compressor of the present invention, the relative position of insertion parts and sleeve is defined, and is not easy to produce abrasion and warpage between insertion parts and sleeve, can provide reliability high compressor.
In addition, compressor of the present invention, the thrust face of jut is that face contacts with support, like this, the relative position of insertion parts and sleeve is defined.Therefore, between insertion parts and cylinder blank part, be not easy to produce abrasion and warpage, can provide reliability high compressor.
In addition, compressor of the present invention needn't carry out complicated processing to sleeve, and cost is low, and the productivity height can provide reliability high compressor.
In addition, compressor of the present invention, the step shape that utilizes sleeve be as support, so, needn't carry out complicated processing to axle, cost is low, can provide reliability high compressor.
In addition, compressor of the present invention, the lubricant oil by flowing into gap between jut and the support is easy to generate the fluid oil film pressure, can suppress contacting of jut and support, so, good endurance, compressor that reliability is high can be provided.
In addition, compressor of the present invention, available simple structure stops the rotation of insertion parts, can construct viscosity pump conscientiously, can provide reliability high compressor.
In addition, compressor of the present invention does not need to be used for fixing the operation of insertion parts, assembling easily, the productivity height can provide reliability high compressor.
In addition, compressor of the present invention can stop the rotation of insertion parts effectively, simultaneously, reclaims the iron powder (for example wearing away powder) that swims in lubricant oil with magnet, so, can prevent engaging-in viscosity pump of iron powder and sliding position, can provide reliability high compressor.
In addition, compressor of the present invention can obtain precision height, wear resistance performance is good, cost is low insertion parts, can provide reliability high compressor.
In addition, compressor of the present invention can relax the vibration of transmitting from the compression unit that adopts viscosity pump and electrodynamic element, so, can suppress the abnormal sound that causes because of vibration, can provide reliability high compressor.
In addition, compressor of the present invention, electrodynamic element are to drive with comprising the operating frequency of power supply frequency with lower frequency, so the merit input of compressor is little, adds stable fuel feeding, can obtain low power consumption, can provide reliability high compressor.
Below, with reference to description of drawings example 14 to 15 of the present invention.But the present invention is not limited by this example.
(example 14)
Figure 30 is the sectional view of the compressor of the invention process form 14.Figure 31 be this example compressor want portion's sectional view.Figure 32 be in this example viscosity pump want portion's sectional view.
Among Figure 30, Figure 31, Figure 32, depositing lubricant oil 6102 in seal container 6101, refrigerant gas 6103 in filling simultaneously.
Lower end in the main shaft part 6120 of axle 6125 has formed the viscosity pump 6140 that is immersed in the lubricant oil 6102.
Below, the structure of detailed description viscosity pump 6140.
On main shaft part 6120, form cylinder blank part 6141, below cylinder blank part 6141, fixing the sleeve 6142 of hollow.Sleeve 6142 is general cylindrical shape, presents the cap shape of lower aperture, and its material is to adopt to become more readily available high-precision iron plate stamping material, but also can adopt the leaf spring steel.
Be inserted in the insertion parts 6143 in cylinder blank part 6141 and the sleeve 6142 coaxially, by plastic materials formations such as (for example PPS, PBT, PEEK), the thermal conductivity of these materials is lower than the metallic material of making axle 6125, and has anti-refrigeration agent, lubricating oil resistance.Outer surface in insertion parts 6143 is being established spiral chute 6144 quarter, and has formed the oil passage 6145 for the lubricant oil circulation between the inner peripheral surface of sleeve 6142.The external diameter of insertion parts 6143 and the internal diameter of sleeve 6142 poor, promptly to mate the gap be 100 μ m to 500 μ m.In addition, insertion parts 6143, end face is provided with bolt hole 6146 thereon, below the side disposing from several the 1st linking parts 6147 of the axis of rotation off-centre of axle 6125.
At the bottom of seal container 6101 inner face, disposing the 2nd linking part 6148.The 2nd linking part 6148, with the 1st linking part 6147 in sense of rotation in opposite directions, and and the sleeve 6142 that rotating between enough void are arranged.The 1st linking part 6147 and the 2nd linking part 6148 all are completely infused in the lubricant oil 6102 of seal container 6101 bottoms.The 1st linking part 6147 usefulness plastics and insertion parts 6143 are integrally formed, still, also wire or shred can be fixed on the below of insertion parts 6143, form the 1st linking part 6147.The 2nd linking part 6148 is L font roughly, is formed by elasticity materials such as wire or shreds.
The following describes the action of the compressor of above-mentioned structure.
Along with the rotation of axle 6125, main shaft part 6120 rotations, the sleeve of fixing 6142 is synchronously rotation also.On the other hand, insertion parts 6143 is by the rotation towing of sleeve 6142, still, because insertion parts 6143 the 1st linking part 6147 that has and the 2nd linking part 6148 that seal container 6101 has flexibly join, so the rotation of insertion parts 6143 is prevented from.As a result, lubricant oil, is risen in spiral helicine oil passage 6145 by towing adhesively rotatably at the inner peripheral surface of sleeve 6142.At this moment, the low centrifugal force when lubricant oil 6102 does not exist with ... low speed rotation, but rise rotatably by feat of the towing power of viscosity, so, even when the low speed rotation of 600rpm, also can stably be drawn.
As mentioned above, according to this example, the axis of rotation of the 1st linking part 6147 and the 2nd linking part 6148 off-axis 6125, can reduce that running torque causes join the time load, simultaneously, linking part is flexibly joined each other, can absorb impact, the parts relevant with the constraint of insertion parts 6143 produce fatigue of materials hardly.Therefore, the structure of viscosity pump 6140 can be kept for a long time and stably, the compressor that reliability is high can be realized.In addition because the load when relaxing joining that running torque causes, will the 1st linking part 6147 or the 2nd linking part become complicated shape, construct extremely simply, can realize compressor cheaply.
In addition, the 1st linking part 6147 and the 2nd linking part 6148 are configured in the lubricant oil 6102, impact when relaxing linking part and join each other with the viscosity of lubricant oil 6102, simultaneously, even because of the vibration of compression unit 6110 has produced friction at linking part, also by the lubrication of lubricant oil 6102 and relax abrasion, improve reliability more.
In addition, in this example, be to utilize wire or shred as the 2nd linking part 6148, but, using under Dormant oils or the situation of diester-based artificial oil as lubricant oil 6102, also can adopt lubricating oil resistance, anti-refrigeration agent, comparatively cheap nitrile butadiene rubber (NBR) is as the 2nd linking part 6148.The 2nd linking part 6148 can become the L font, also can be at the joining part configuration nitrile butadiene rubber of wire or shred.Utilize the absorption impact of nitrile butadiene rubber, can reduce sound and vibration that linking part transmits when joining outside seal container 6101.
In addition, according to this example, because passing through packing ring 6151, insertion parts 6143 usefulness bolts 6150 rotatably combine with the main shaft part 6120 of axle 6125, so, insertion parts 6143 and the relative position that is fixed on the sleeve 6142 of main shaft part 6120 lower ends are limited by above-mentioned connecting part.Therefore, total certain clearance that keeps between insertion parts 6143 and sleeve 6142, can not produce the side pressure that causes because of warpage, simultaneously, also by the oil pressure that produces between insertion parts 6143 and the sleeve 6142, insertion parts 6143 is kept with the gap of sleeve 6142, and the slip abrasion that insertion parts 6143 and sleeve are 6142 are few.
In addition, in this example, be that spiral chute 6144 is set on the outer circumferential face of insertion parts 6143, form spiral helicine oil passage 6145.But, also can on the inner peripheral surface of sleeve 6142, spiral chute be set, form oil passage 6145.Rotate the face of accepting lubricant oil 6102 of side inner peripheral surface, added the surface area of spiral chute recess, with the area of contact increase of lubricant oil 6102, so, produce big viscous resistance, can obtain strong lubricant oil transporting power.
(example 15)
Figure 33 be the invention process form 15 compressor want portion's sectional view.
Below, with reference to Figure 33 example of the present invention is described, with identical construction in the example 14, to annotate with same tag, its detailed description is omitted.
Insert the insertion parts 6143 in the sleeve 6142 coaxially, below the side, disposing from eccentric several the 1st linking parts 6247 of the axis of rotation of axle 6125.
At the bottom of seal container 6101 inner face, disposing the 2nd linking part 6248.The 2nd linking part 6248, with the 1st linking part 6247 in sense of rotation in opposite directions, and and the sleeve 6142 that rotating between enough void are arranged.The 1st linking part 6247 and the 2nd linking part 6248 all are completely infused in the lubricant oil 6102 of seal container 6101 bottoms.The 1st linking part 6247 usefulness plastics and insertion parts 6143 are integrally formed, still, also wire or shred can be fixed on the below of insertion parts 6143, form the 1st linking part 6247.The 2nd linking part 6148 is L font roughly, is formed by elasticity materials such as wire or shreds.The metallic surface plate 6249 that contacts with 6247 of the 1st linking parts is being set.
According to this example, because the 1st linking part 6247 is that face contacts with the 2nd linking part 6248 mutually, so with the viscous resistance that face bears lubricant oil 6102, available simple structure makes the face when joining press minimum.Therefore, can prevent toppling over of linking part, improve reliability more.
In addition, in this example, be on the 2nd linking part 6148, utilize metal surface plate 6249, but also can do surface plate with nitrile butadiene rubber lubricating oil resistance, anti-refrigeration agent, comparatively cheap (NBR), perhaps the helical element of configuration helical spring etc. on the abutted surface of surface plate 6249 can improve the impact absorbency when joining more.
As mentioned above, among the present invention, make interface member depart from axis of rotation, can reduce that running torque causes join the time load, simultaneously, interface member is flexibly joined each other, absorb and impact, the parts relevant with the constraint of insertion parts do not produce fatigue of materials.In addition,, do not need interface member is become complicated shape because load relaxes, so, can keep the structure of viscosity pump for a long time and stably, reliability height, compressor that cost is low can be provided.
In addition, among the present invention, impact in the time of can relaxing interface member with the viscosity of lubricant oil and join, simultaneously,, can provide the compressor of the high and low cost of reliability even, also can relax abrasion because of the vibration of compression unit has produced friction at linking part.
In addition, among the present invention, at least one side of the 1st linking part and the 2nd linking part is formed by elastomer, so, can reduce component number, the compressor of the high and low cost of reliability can be provided.
In addition, among the present invention, folder has been established elastomer between the 1st linking part and the 2nd linking part, in the assembling neutralization transportation of compressor, the bigger vibration when joining can be relaxed, simultaneously, the position of the 2nd linking part needn't be limited closely, can obtain high production rate, the compressor of the high and low cost of reliability can be provided.
In addition, among the present invention, the 1st linking part is that face contacts with the 2nd linking part each other, so, with simply constructing, can reduce face pressure when joining effectively, so, can prevent to topple over, the compressor of the high and low cost of reliability can be provided.
Industrial applicibility
Compressor of the present invention transports the spy even also have stable lubricating oil when low-speed running Property, so, the system of household electric refrigerator, dehumidifier, disk array cabinet, automatic vending machine etc. be applicable to Cold circulation.
Claims (18)
1. compressor, in seal container, depositing lubricant oil and accommodating compressed refrigerant compression unit, drive the electrodynamic element of this compression unit;
Above-mentioned electrodynamic element is made of stator and rotor;
Above-mentioned compression unit has at vertical direction extension and the axle that rotates, is formed on this and the viscosity pump that is communicated with above-mentioned lubricant oil;
Above-mentioned viscosity pump has
Be formed on cylinder blank part on the above-mentioned axle,
Be inserted in coaxially and rotatably insertion parts in the above-mentioned cylinder blank part,
Be formed in the above-mentioned cylinder blank part between week and above-mentioned insertion parts periphery and according to the spiral chute of the direction formation that lubricant oil is risen,
The inhibition mechanism that suppresses the rotation of above-mentioned insertion parts; It is characterized in that,
Also have the below that is fixed on above-mentioned axle, the sleeve that forms above-mentioned cylinder blank part, form jut, on above-mentioned sleeve, formed support in the peripheral direction of above-mentioned insertion parts, this support with the thrust face of above-mentioned jut rotatably suspension.
2. compressor as claimed in claim 1 is characterized in that, has the 2nd viscosity pump on the top that is connected above-mentioned viscosity pump.
3. compressor as claimed in claim 2 is characterized in that, above-mentioned the 2nd viscosity pump is formed by the inner peripheral surface of the main bearing of carving the guide groove established and axle Zhi Shangshu main shaft part in the main shaft part periphery of above-mentioned axle.
4. compressor as claimed in claim 2 is characterized in that, has the constraint mechanism that retrains above-mentioned insertion parts at sense of rotation and above-below direction.
5. compressor as claimed in claim 4 is characterized in that above-mentioned constraint mechanism is formed by support unit, and this support unit is made of the elastic metallic wire rod, engages with card complex hole on being located in above-mentioned insertion parts, and its end is fixed on the said stator.
6. compressor as claimed in claim 1 is characterized in that, also has carriage, and this carriage is roughly U font, and its two ends are fixed on the bottom of said stator, and central part engages with the underpart of above-mentioned insertion parts and supporting this insertion parts.
7. compressor as claimed in claim 1 is characterized in that, above-mentioned inhibition mechanism is an alar part, and this alar part is formed on above-mentioned insertion parts, and produces viscous resistance between the lubricant oil.
8. compressor as claimed in claim 1 is characterized in that, above-mentioned inhibition mechanism is formed by the 1st permanent magnet and the 2nd permanent magnet; Above-mentioned the 1st permanent magnet is near the underpart of above-mentioned insertion parts, and the running shaft heart that is eccentric in above-mentioned axle is setting; Above-mentioned the 2nd permanent magnet is setting at the sense of rotation homopolarity opposite to each other with respect to above-mentioned the 1st permanent magnet.
9. compressor as claimed in claim 8 is characterized in that, above-mentioned the 2nd permanent magnet is fixed on the seal container directly or indirectly.
10. compressor as claimed in claim 8 is characterized in that, above-mentioned the 2nd permanent magnet is fixed on above-mentioned electrodynamic element or the compression unit directly or indirectly.
11. compressor as claimed in claim 1 is characterized in that, above-mentioned sleeve is pressed in the hollow portion of the below that is located at above-mentioned axle, simultaneously, with the upper-end surface of above-mentioned sleeve as support.
12. compressor as claimed in claim 1 is characterized in that, above-mentioned sleeve has large-diameter portion and minor diameter part, and the step between above-mentioned large-diameter portion and the minor diameter part is a support.
13. compressor as claimed in claim 12 is characterized in that, above-mentioned support is the thrust face shape of taper.
14. compressor as claimed in claim 1 is characterized in that, above-mentioned insertion parts is integrally formed with synthetic resin.
15. each the described compressor as in the claim 1,2,8 is characterized in that, above-mentioned electrodynamic element drives with the operating frequency that comprises the frequency below the power supply frequency.
16. each the described compressor as in the claim 1,2,8 is characterized in that, comprises the running of the operating frequency between 600～1200r/min at least.
17. each the described compressor as in the claim 1,2,8 is characterized in that above-mentioned compression unit flexibly is bearing in the seal container.
18. each the described compressor as in the claim 1,2,8 is characterized in that refrigeration agent is an isobutane.
Applications Claiming Priority (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP070015/2003 | 2003-03-14 | ||
| JP2003070015 | 2003-03-14 | ||
| JP073867/2003 | 2003-03-18 | ||
| JP361721/2003 | 2003-10-22 | ||
| JP019614/2004 | 2004-01-28 | ||
| JP019611/2004 | 2004-01-28 | ||
| JP019613/2004 | 2004-01-28 | ||
| JP019612/2004 | 2004-01-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1701182A CN1701182A (en) | 2005-11-23 |
| CN100422554C true CN100422554C (en) | 2008-10-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004800008949A Expired - Fee Related CN100422554C (en) | 2003-03-14 | 2004-03-15 | Compressor |
Country Status (1)
| Country | Link |
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| CN (1) | CN100422554C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979140A (en) * | 2016-01-19 | 2017-07-25 | 惠而浦股份有限公司 | Cooling speed change cooling compressor including lubricating oil pumping system |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BRPI0804302B1 (en) * | 2008-10-07 | 2020-09-15 | Embraco Indústria De Compressores E Soluções Em Refrigeração Ltda | OIL PUMP ASSEMBLY ARRANGEMENT IN A COOLING COMPRESSOR |
| CN104145116B (en) * | 2011-12-27 | 2017-03-01 | 阿塞里克股份有限公司 | There is the compressor of pumping components |
| KR101483519B1 (en) * | 2012-05-15 | 2015-01-16 | 삼성전자 주식회사 | Hermetic reciprocating compressor |
| JP6220639B2 (en) * | 2013-11-08 | 2017-10-25 | 日立アプライアンス株式会社 | Hermetic compressor and refrigerator using the same |
| JP6190698B2 (en) * | 2013-11-08 | 2017-08-30 | 日立アプライアンス株式会社 | Hermetic compressor and refrigerator using the same |
| KR102149737B1 (en) * | 2013-11-28 | 2020-10-26 | 삼성전자주식회사 | Compressor |
| CN106795875B (en) * | 2015-03-25 | 2019-11-05 | 松下电器制冷装置新加坡 | Hermetic type compressor and refrigerating plant |
| CN106837745B (en) * | 2017-02-17 | 2019-12-20 | 安徽美芝制冷设备有限公司 | Compressor with a compressor housing having a plurality of compressor blades |
| KR102377778B1 (en) * | 2017-07-19 | 2022-03-23 | 삼성전자주식회사 | Hermetic compressor |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN1701182A (en) | 2005-11-23 |
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Effective date of registration: 20180416 Address after: Singapore Bedok South 1 Street Patentee after: PANASONIC APPLIANCES REFRIGERATION DEVICES SINGAPORE Address before: Osaka Japan Patentee before: Matsushita Electric Industrial Co.,Ltd. |
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