CN103486040B - Rotary compressor - Google Patents
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- CN103486040B CN103486040B CN201310149258.3A CN201310149258A CN103486040B CN 103486040 B CN103486040 B CN 103486040B CN 201310149258 A CN201310149258 A CN 201310149258A CN 103486040 B CN103486040 B CN 103486040B
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Abstract
The present invention provides the offset of a kind of eccentric axial portion making bent axle to increase, make the rotary compressor that the maximum volume of discharge chambe increases, it is possible to does not reduce assembleability and can prevent cold-producing medium from leaking, and improves compression efficiency.This rotary compressor, utilization has 2 eccentric axial portion (51a, bent axle 51b) drives and clips a pair compression mechanical part (10a that demarcation strip (30) is stacked, 10b), this bent axle has the axle portion (52a supported respectively by the end plate of both sides, 52b), axle portion (the 52a of bent axle (50), 52b) formed with different external diameters respectively, eccentric axial portion (the 51a of bent axle, 51b) formed with different external diameters respectively, the internal diameter of the center through hole (33) of demarcation strip (30) is than the eccentric axial portion (51a of bent axle (50), any one of external diameter 51b) is little, and demarcation strip (30) is divided to surround the demarcation strip insertion section (53) of bent axle (50).
Description
Technical field
The present invention relates to rotary compressor, particularly to having multiple cylinder, configuring the rotary compressor of demarcation strip between cylinder.
Background technology
Rotary compressor has hermetic container (hereinafter referred to " housing "), be arranged in housing drive division (hereinafter referred to " motor ") and the compression unit driven by motor, the cold-producing medium come through sucking pipe arrangement supply is cooled at compression unit, is discharged to outside housing through discharging pipe arrangement.This rotary compressor is used for cold closet, household freezer, air-conditioner, water heater etc., so, it is desirable to high capacity and cost degradation.
The compression unit of the rotary compressor of single cylinder has circular cylinder, circular rotary-piston, blade, spring, bent axle and a pair end plate that can retreat towards the direction of the central shaft of cylinder.Circular piston is arranged in the inner peripheral portion of cylinder, carries out eccentric rotary.Blade is arranged in the blade groove being formed on cylinder.Blade is pushed by spring towards the direction of the central shaft of cylinder.Bent axle is formed with the eccentric axial portion for making rotary-piston eccentric rotary.Bent axle be rotatably supported by a pair end plate, and the both ends of the surface of inaccessible cylinder.
Therefore, the inner peripheral surface of cylinder, the outer peripheral face of rotary-piston and a pair end plate the space formed, a pair space (hereinafter referred to " discharge chambe ") being divided into volume and increasing and decreasing respectively it is divided into two by the blade of eccentric rotary.That is, the mechanism that the cold-producing medium that the phase place being gradually increased at volume is attracted is compressed is defined in the phase place that volume reduces gradually.
Additionally, the compression unit of the rotary compressor of twin-tub, the above-mentioned structure (identical with compression mechanical part) of the rotary compressor of single cylinder is equivalent to be configured to 2 layers (2 grades), the blade groove of the two is arranged in the opposite phase of 180 °, between the cylinder of the two, configure " demarcation strip " with replacing end plate.That is, bent axle has formation 180 ° of rightabout a pair eccentric axial portion, is penetratingly formed at the center through hole on demarcation strip, and be rotatably supported by a pair end plate.
Now, the internal diameter of center through hole is roughly equivalent to the aggregate values (precisely, slightly larger than aggregate values) of the offset of a pair eccentric axial portion of bent axle.
Generally, there are 2 with in the rotary compressor of upper cylinder half, it is desirable to when strengthening the maximum volume of discharge chambe, have following three kinds of methods.That is, the method that cylinder is increased (direction of principal axis lengthening) by (1).(2) method that cylinder bore is strengthened (radial direction increasing).(3) method that the offset of the eccentric axial portion of bent axle is strengthened.
When (1) or (2), compressor can maximize, high cost.Therefore, in order to eliminate the high cost brought that maximizes, the method generally adopting (3).
But, as previously mentioned, when the offset of the eccentric axial portion of bent axle increases, the internal diameter forming the center through hole on demarcation strip also to increase, so, in (3), can produce the discharge chambe of adjacent cylinder be interconnected via the big center through hole of internal diameter thus produce " leakage stream ", problem that compression efficiency is deteriorated.
For this, in the rotary compressor with 2 cylinders, in order to not produce problem as described above, below scheme is proposed: separately set the external diameter of the eccentric axial portion of bent axle, the diameter of axle as the method improving compressor efficiency, demarcation strip is become the size that the eccentric axial portion of only path side can be passed through, so that leakage stream reduces, reduce and the oily viscosity of bearing and the slippage loss (for example, see patent documentation 1) that brings.
Patent documentation 1: Japanese Unexamined Patent Publication 5-99171 publication
Summary of the invention
But, there is problems with in patent documentation 1 invention disclosed.
In the structure that patent documentation 1 is recorded, owing to demarcation strip can only be passed through from the eccentric axial portion of the path side of bent axle, so, assemble trouble.Namely, when assembling demarcation strip and containing the compression mechanical part of the eccentric axial portion of path side, want first after the center through hole of the eccentric axial portion traverse demarcation strip of path side, again circular rotary-piston is inlaid in this eccentric axial portion, then, the eccentric axial portion being embedded in this rotary-piston is assembled in the cylinder chamber of this path side, then with the cylinder of side, big footpath and the cylinder of above-mentioned path side, demarcation strip is clamped, in this condition, fix together with the end of both sides with bolt.Accordingly, there exist the problem that assembling procedure is many.
It addition, when the method utilizing (3) increases the maximum volume of discharge chambe, owing to the external diameter of the eccentric axial portion of bent axle increases, so, the internal diameter of demarcation strip also inevitably enlarges.If set to certain above offset, then cannot ensure that the seal length of rotary-piston and demarcation strip, the discharge chambe of adjacent cylinder is interconnected and can produce " leakage stream ", thus compression efficiency is deteriorated.
The present invention makes to solve the problems referred to above, the rotary compressor that its objective is to provide the offset of a kind of eccentric axial portion making bent axle to increase and make the volume of discharge chambe increase, this rotary compressor can not reduce assembleability, can prevent cold-producing medium leakage simultaneously, can improve compression efficiency.
The rotary compressor of the present invention, utilize the bent axle with 2 eccentric axial portion to drive and clip a pair compression mechanical part that demarcation strip is stacked, this bent axle has the axle portion supported respectively by the end plate of both sides, wherein, the shaft portion of bent axle is not formed with different external diameters, further, the eccentric axial portion of bent axle is formed with different external diameters respectively；The internal diameter of the center through hole of demarcation strip is formed all less than any one of the external diameter of the eccentric axial portion of bent axle, and, demarcation strip is divided to surround the demarcation strip insertion section of bent axle.
The rotary compressor of the present invention, the shaft portion of bent axle is not formed with different external diameters, and, the eccentric axial portion of bent axle is formed with different external diameters respectively, the internal diameter of the center through hole of demarcation strip is formed all less than any one of the external diameter of the eccentric axial portion of bent axle, and, demarcation strip is divided to surround the demarcation strip insertion section of bent axle, thus, high capacity and cost degradation can be realized, and, it can be ensured that the seal length of rotary-piston, prevent cold-producing medium from leaking, improve compression efficiency.
Accompanying drawing explanation
Fig. 1 indicates that the overall sectional side view of the rotary compressor of embodiment of the present invention 1.
Fig. 2 indicates that the partial side sectional view of the compression mechanical part of the rotary compressor shown in Fig. 1.
Fig. 3 (a) indicates that the vertical view part sectioned view of the 1st compression mechanical part of the rotary compressor shown in Fig. 1, and Fig. 3 (b) indicates that the vertical view part sectioned view of the 2nd compression mechanical part of the rotary compressor shown in Fig. 1.
Fig. 4 indicates that the top view of the demarcation strip of the rotary compressor shown in Fig. 1.
Fig. 5 indicates that the figure of the running efficiency of the rotary compressor shown in Fig. 1.
The explanation of accompanying drawing labelling
null10a ... the 1st compression mechanical part，10b ... the 2nd compression mechanical part，11a ... the 1st cylinder，11b ... the 2nd cylinder，12a ... the 1st piston，12b ... the 2nd piston，13a ... the 1st blade groove，13b ... the 2nd blade groove，14a ... the 1st blade，14b ... the 2nd blade，15a ... the 1st spring，15b ... the 2nd spring，20a ... the 1st end plate，20b ... the 2nd end plate，25a ... the 1st bearing，25b ... the 2nd bearing，30 ... demarcation strip，31 ... the 1st segmentation shim，32 ... the 2nd segmentation shim，33 ... center through hole，34 ... divisional plane，40a ... space，40b ... space，50 ... bent axle，51a ... the 1st eccentric axial portion，51b ... the 2nd eccentric axial portion，52a ... the 1st bearing insertion section，52b ... the 2nd bearing insertion section，53 ... demarcation strip insertion section，60a ... assembling bolt，60b ... assembling bolt，71 ... assembling lag bolt，72 ... assembling stay bolt，100 ... rotary compressor (compressor)，101 ... housing，101a ... upper body，101b ... lower case，102 ... motor，102a ... stator，102b ... rotor，103 ... compression unit，104 ... glass terminal，105 ... discharge pipe，106a ... the 1st suction tube，106b ... the 2nd suction tube，107 ... absorbing silencer.
Detailed description of the invention
[embodiment 1]
Below, with reference to accompanying drawing, the rotary compressor of embodiment of the present invention 1 is described.
Fig. 1～Fig. 4 illustrates schematically that the rotary compressor of embodiment of the present invention 1.Fig. 1 indicates that the overall sectional side view of rotary compressor.Fig. 2 indicates that the partial side sectional view of the compression mechanical part of rotary compressor.Fig. 3 indicates that the vertical view part sectioned view of the compression mechanical part of rotary compressor.Fig. 4 indicates that the top view of the demarcation strip of rotary compressor.Each figure is all schematic, and the present invention is not limited to the mode of diagram.
In Fig. 1～Fig. 4, rotary compressor 100 has the housing 101 as hermetic container, be arranged in the drive source within housing 101 and drive division (hereinafter referred to " motor ") 102 and be arranged on the compression unit 103 within housing 101.Below, the structure in each portion is described in detail.
(housing)
Housing 101 has upper body 101a and lower case 101b.On upper body 101a, it is provided with and electric power is externally supplied to the glass terminal 104 of motor 102 and being discharged to, by the cold-producing medium after compressing, the discharge pipe 105 that housing 101 (compressor 100) is outside.
On lower case 101b, fix motor 102, constitute the 1st compression mechanical part 10a and the 2nd compression mechanical part 101b of compression unit 103 and cold-producing medium is directed respectively into the 1st suction tube 106a and the 2nd suction tube 106b of the 1st compression mechanical part 10a and the 2 compression mechanical part 10b.1st suction tube 106a and the 2nd suction tube 106b is connected with absorbing silencer 107, carries out the removing of dirt in the gas-liquid separation of cold-producing medium and cold-producing medium in absorbing silencer 107.
In the following description, to the identical content in the 1st compression mechanical part 10a and the 2nd compression mechanical part 10b, the footnote " a, b " of " the 1st, the 2nd " and the accompanying drawing labelling describing title is sometimes dispensed.
(motor)
Motor 102 has stator 102a and rotor 102b.Rotor 102b is installed on bent axle 50 (will in other detailed description about bent axle 50).The rotation torque that motor 102 produces is delivered to the 1st compression mechanical part 10a and the 2 compression mechanical part 10b by bent axle 50.
(compression unit)
Compression unit 103 has and clips demarcation strip the 1st stacked compression mechanical part 10a and the 2nd compression mechanical part 10b.
1st compression mechanical part 10a has the 1st circular cylinder 11a, circular the 1st rotary-piston (hereinafter referred to " the 1st piston ") 12a, the 1st blade 14a and the 1 spring 15a.1st piston 12a is arranged in the inner peripheral portion of the 1st cylinder 11a, and connect eccentric rotary on one side with the inner peripheral surface of the 1st cylinder 11a.1st blade 14a can be arranged in the 1st blade groove 13a being formed on the 1st cylinder 11a towards the central axis direction of the 1st cylinder 11a with retreating.1st blade 14a is crimped on the periphery of the 1st piston 12a by the 1st spring 15a.At this moment, the outer peripheral face of the 1st piston 12a and the inner peripheral surface of the 1st cylinder 11a are wire-shaped contact, and along with eccentric rotary, the contact position of wire moves at circumferencial direction.
Similarly, the 2nd compression mechanical part 10b has the 2nd circular cylinder 11b, circular the 2nd rotary-piston (hereinafter referred to " the 2nd piston ") 12b, the 2nd blade 14b and the 2 spring 15b.2nd piston 12b is arranged in the inner peripheral portion of the 2nd cylinder 11b, and connect eccentric rotary on one side with the inner peripheral surface of the 2nd cylinder 11b.2nd blade 14b can be arranged in the 2nd blade groove 13b being formed on the 2nd cylinder 11b towards the central axis direction of the 2nd cylinder 11b with retreating.2nd blade 14b is crimped on the periphery of the 2nd piston 12b by the 2nd spring 15b.At this moment, the outer peripheral face of the 2nd piston 12b and the inner peripheral surface of the 2nd cylinder 11b are wire-shaped contact, and along with eccentric rotary, the contact position of wire moves at circumferencial direction.
It addition, the internal diameter of the internal diameter of the 1st cylinder 11a and the 2nd cylinder 11b is designed to equal.
(discharge chambe)
The discharge chambe of each compression mechanical part 10 be with blade 14 by the space of each cylinder chamber in the circumferential direction be divided into two parts to be formed.Namely, at the 1st compression mechanical part 10a, by below the inner peripheral surface of the 1st cylinder 11a, the outer peripheral face of the 1st piston 12a, the 1st end plate 20a and the 1st above the surrounded space 40a of demarcation strip 30, by the connecting of outer peripheral face (roughly linear connect) of the connecting of outer peripheral face (roughly linear connect) of the inner peripheral surface of the 1st cylinder 11a and the 1st piston 12a and the 1st blade 14a and the 1 piston 12a, in the circumferential direction be divided into two parts.
At the 2nd compression mechanical part 10b, similarly, by the 2nd space 40b surrounded below the inner peripheral surface of the 2nd cylinder 11b, the outer peripheral face of the 2nd piston 12b, the 2nd end plate 20b and below demarcation strip 30, by the connecting and the connecting of outer peripheral face of the 2nd blade 14b and the 2 piston 12b of outer peripheral face of the inner peripheral surface of the 2nd cylinder 11b and the 2nd piston 12b, in the circumferential direction be divided into two parts (see Fig. 3).
(bent axle)
Bent axle 50 configures the 1st bearing insertion section 52a, demarcation strip insertion section the 53 and the 2nd bearing insertion section 52b coaxially.Between the 1st bearing insertion section 52a and demarcation strip insertion section 53, define the 1st eccentric axial portion 51a towards side's bias.Between the 2nd bearing insertion section 52b and demarcation strip insertion section 53, define the 2nd eccentric axial portion 51b towards the opposing party's bias.
At this moment, the 1st eccentric axial portion 51a and the 2 eccentric axial portion 51b (eccentric direction differ 180 °) toward each other, the central shaft of each eccentric axial portion 51 and the axis parallel of bent axle 50.
It addition, the 1st bearing insertion section 52a is rotatably by the 1st bearing 25a supporting being arranged at the 1st end plate 20a inner peripheral surface.2nd bearing insertion section 52b is rotatably by the 2nd bearing 25b supporting being arranged at the 2nd end plate 20b inner peripheral surface.Demarcation strip insertion section 53 is penetratingly formed at the center through hole 33 of demarcation strip 30 central authorities.
(compression of cold-producing medium)
1st eccentric axial portion 51a runs through the inner peripheral portion of the 1st piston 12a, 2nd eccentric axial portion 51b runs through the inner peripheral portion of the 2nd piston 12b, so, utilize the rotation of bent axle 50 so that the 1st piston 12a and the 2 piston 12b is eccentric rotary ((a) and (b) see Fig. 3) when a side differs 180 ° of phase places relative to the opposing party.
Therefore, by the rotation of bent axle 50, being divided into a side space of two-part 1st space 40a, volume increases gradually, is divided into the opposing party space of two-part 1st space 40a, and volume reduces gradually.Namely, form the 1st suction inlet (not shown) in the position being equivalent to a side space, form the 1st outlet (not shown) in the position being equivalent to the opposing party space, so, after cold-producing medium is inhaled into from the 1st suction inlet, discharged from the 1st outlet by compression.
(demarcation strip)
As shown in Figure 4, demarcation strip 30 is to be centrally formed the substantially disk of center through hole.The shape of demarcation strip 30 is general toroidal, along the divisional plane 34 of radiation direction (parallel with the direction that the 1st blade 14a and the 2nd blade 14b retreats), is formed as being divided into two Ground Split and becomes the 1st segmentation shim the 31 and the 2nd to split the shape of shim 32.It addition, these the 1st segmentation shims the 31 and the 2nd split shim 32, in order to be connected with each other by shim at circumferencial direction, there is such as assembling bolt 60a and 60b.It addition, as by interconnective for shim means, it would however also be possible to employ fastener hooks.Additionally, divisional plane 34 is equivalent to form the face in the 1st the 1st plane splitting on shim 31 with the 2nd flat face formed on the 2nd segmentation shim 32, but, for the ease of explanation, not only refer to the face of the 1st plane and the 2nd flat face, be sometimes referred to respective of the 1st plane and the 2nd plane.It addition, for divisional plane 34, the face connected is not limited to plane, also contains the step surface of mutual face contact.
(diameter of axle and aperture)
At this moment, the axle portion of bent axle 50, i.e. the 1st bearing insertion section 52a and the 2 bearing insertion section 52b are respectively set as different external diameters, and, the 1st eccentric axial portion 51a and the 2 eccentric axial portion 51b is respectively set as different external diameters.It addition, the external diameter that the internal diameter of the center through hole 33 of demarcation strip 30 is formed than arbitrary eccentric axial portion 51a of bent axle 50,51b is all little.Namely, as shown in Figure 2, if the internal diameter of the center through hole 33 that external diameter is dp2, demarcation strip 30 that external diameter is dp1, the 2nd eccentric axial portion 51b that external diameter is d2, the 1st eccentric axial portion 51a that the external diameter of the 1st bearing insertion section 52a of bent axle 50 is d1, the 2nd bearing insertion section 52b is dm, d1 ≠ d2, dp1 ≠ dp2, dm < dp1, dp2.
It addition, in illustrated example, be d1>d2, dp1>dp2, dm<dp2<dp1.
In illustrated example, the axle portion (the 2nd bearing insertion section 52b) of the path side of bent axle 50 and the eccentric axial portion (the 2nd eccentric axial portion 51b) of path side are adjacent to configuration, and the axle portion (the 1st bearing insertion section 52a) of side, big footpath and the eccentric axial portion (the 1st eccentric axial portion 51a) of side, big footpath are adjacent to configuration.
As mentioned above, the axle portion of bent axle 50 is formed with different external diameters, simultaneously, eccentric axial portion is formed with different external diameters, additionally, the internal diameter of the center through hole 33 of demarcation strip 30 is all less than any one of the external diameter of eccentric axial portion, in this way it can be ensured that the seal length between the internal diameter of the center through hole 33 of the external diameter of seal length between the internal diameter of the center through hole 33 of the external diameter of the 1st piston 12a and demarcation strip 30 and the 2nd piston 12b and demarcation strip 30.Therefore, the discharge chambe of each cylinder 11a, 11b does not connect mutually, it is possible to prevent cold-producing medium from leaking.So, it is possible to achieve the maximum volume increaseization of the discharge chambe that the offset of the eccentric axial portion of bent axle 50 increases and causes, can improve compression efficiency.
On the other hand, owing to the internal diameter of the center through hole 33 of demarcation strip 30 is formed all less than any one of the external diameter of eccentric axial portion, so, available following methods assemble compressible mechanism part.
(1) the 1st bearing insertion section 52a of bent axle 50 is inserted the 1st end plate 20a, the 1st eccentric axial portion 51a of side, big footpath be inlaid in the 1st piston 12a thereon and be assembled in cylinder 11a.Then, with assembling lag bolt 71 (see Fig. 1), the 1st end plate 20a and the 1 cylinder 11a is fastened and fixed.The assemble method of the 1st compression mechanical part 10a hereto is roughly the same with patent documentation 1.
(2) with assembling bolt 60a, 60b, each segmentation shim 31,32 of the demarcation strip 30 of segmentation is connected, with by the demarcation strip insertion section 53 being surrounded bent axle 50 by each segmentation shim 31,32.So, the demarcation strip insertion section 53 of bent axle 50 becomes the state of the center through hole 33 running through demarcation strip 30.
(3) the 2nd eccentric axial portion 51b of path side be inlaid in the 2nd piston 12b thereon and be assembled in the 2nd cylinder 11b.
(4) the 2nd bearing insertion section 52b of bent axle 50 is inserted the 2nd end plate 20b of path side, when clipping demarcation strip 30 with the 1st cylinder 11a and the 2 cylinder 11b, with assembling stay bolt 72 (see Fig. 1), the 2nd end plate 20b, the 2nd cylinder 11b and the 1 cylinder 11a are tightened together.
Additionally, the assembling illustrated is according to the method carrying out assembling to the order of path side (downside) from side, big footpath (upside), but can also be in turn, assembling according to from path side (downside) to the order of side, big footpath (upside), which kind of method can.It addition, in superincumbent explanation, be that demarcation strip 30 is split but it also may do not split demarcation strip 30 but at demarcation strip insertion section 53 place, bent axle 50 is split.
Assemble method according to above-mentioned compression mechanical part, more not a halfpenny the worse than assemble method before, so, can cost be suppressed low.It addition, as product, the reliability of aspect of performance is more important than reducing assembly cost, is as noted previously, as and can prevent cold-producing medium from leaking, so, the rotary compressor 100 with high reliability can be obtained.
It addition, more than 0.8 times of outside diameter d 1, less than 0.9 times of the axle portion (the 1st bearing insertion section 52a) of the outside diameter d 2 preferably side, big footpath of the axle portion of the path side of bent axle 50 (the 2nd bearing insertion section 52b).At this, lower limit is set as, and the reason of d2=0.8 × d1 is, if external diameter is less than 0.8 times, then cannot ensure that the rigidity of axle, intensity, and higher limit is set as, and the reason of d2=0.9 × d1 is, in order to strengthen the offset of eccentric axial portion 51a, 51b as far as possible.
Additionally, the outside diameter d p2 of the eccentric axial portion (the 2nd eccentric axial portion 51b) of the path side of bent axle 50 is more than 0.86 times of outside diameter d p1, less than 0.94 times of the eccentric axial portion (the 1st eccentric axial portion 51a) of side, big footpath, and being more preferably dp2 is more than 0.92 times of dp1, less than 0.93 times.Especially, dp2=0.925 × dp1 is best suited for.
These numerical definitenesses obtain from experimental result, as described later, be according to Fig. 5 year running efficiency curve chart determine.
[other embodiment]
Foregoing illustrate the structure that compression unit 103 is made up of, the eccentric axial portion of bent axle 50 is path side and big side, footpath is integrated the 1st compression mechanical part 10a and the 2 compression mechanical part 10b.But the present invention is not limited to this, it is also possible to will split between the eccentric shaft of bent axle 50, during assembling, connects again after being provided with demarcation strip 30 and constitute compression mechanism.
Finally, the improvement effect of the running efficiency of the rotary compressor (split-compressor) 100 of present embodiment is described.Fig. 5 represents the relation of the eccentric diameter of axle dp1 of the side, big footpath of the bent axle ratio with the eccentric diameter of axle dp2 of path side and running efficiency.Transverse axis represents the eccentric diameter of axle ratio of dp2/dp1, and the longitudinal axis represents a year running efficiency.
It addition, the rotary compressor shown in Fig. 5 is the rotary compressor of internal high pressure type.In Figure 5, with the crankshaft eccentric diameter of axle of rotary compressor before than during for 1 year running efficiency for benchmark (100%), represent the running efficiency of the compressor 100 of present embodiment.
For the running efficiency of the compressor 100 of present embodiment, as the eccentric diameter of axle dp2 of the path side of bent axle be the eccentric diameter of axle dp1 of side, big footpath 0.925 times, it is about 102%, improves the running efficiency of about 2% than rotary compressor before.
As can be seen from Fig. 5, when 0.86≤dp2/dp1≤0.94, running efficiency is more than 101%.When 0.92≤dp2/dp1≤0.93, running efficiency is more than 101.5%.
As can be known from the results, ratio (dp2/dp1) optimization in the lateral deviation axle footpath, big footpath with path lateral deviation axle footpath by making bent axle, it is possible to suppress the friction loss of rotary-piston and eccentric shaft, improves running efficiency.
Claims (3)
1. a rotary compressor, utilizes bent axle to drive and clips the compression mechanical part that demarcation strip is stacked, and this bent axle is supported by the bearing of both sides respectively, it is characterised in that
Above-mentioned bent axle has two axle portions with different external diameter formation and two eccentric axial portion formed with different external diameters；
Above-mentioned demarcation strip has the through hole run through by above-mentioned bent axle, and the internal diameter of above-mentioned through hole is formed all less than any one of the external diameter of above-mentioned eccentric axial portion, and above-mentioned demarcation strip is divided to surround above-mentioned bent axle,
The external diameter in the axle portion of the path side of above-mentioned bent axle is more than 0.8 times and less than 0.9 times of the external diameter in the axle portion of side, big footpath,
The external diameter of the eccentric axial portion of the path side of above-mentioned bent axle is more than 0.86 times and less than 0.94 times of the external diameter of the eccentric axial portion of side, big footpath.
2. rotary compressor as claimed in claim 1, it is characterised in that the axle portion of the path side of above-mentioned bent axle and the eccentric axial portion of path side are adjacent to configuration, and the axle portion of the side, big footpath of above-mentioned bent axle and the eccentric axial portion of side, big footpath are adjacent to configuration.
3. rotary compressor as claimed in claim 1 or 2, it is characterised in that the external diameter of the eccentric axial portion of the path side of above-mentioned bent axle is 0.925 times of the external diameter of the eccentric axial portion of side, big footpath.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-133846 | 2012-06-13 | ||
| JP2012133846A JP5781019B2 (en) | 2012-06-13 | 2012-06-13 | Rotary compressor |
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| CN103486040A CN103486040A (en) | 2014-01-01 |
| CN103486040B true CN103486040B (en) | 2016-07-27 |
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| CN 201320217833 Expired - Lifetime CN203272137U (en) | 2012-06-13 | 2013-04-26 | Rotary compressor |
| CN201310149258.3A Active CN103486040B (en) | 2012-06-13 | 2013-04-26 | Rotary compressor |
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| CN 201320217833 Expired - Lifetime CN203272137U (en) | 2012-06-13 | 2013-04-26 | Rotary compressor |
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| JP (1) | JP5781019B2 (en) |
| CN (2) | CN203272137U (en) |
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| JP5781019B2 (en) * | 2012-06-13 | 2015-09-16 | 三菱電機株式会社 | Rotary compressor |
| CN104153993B (en) * | 2014-08-27 | 2017-06-30 | 郑州凌达压缩机有限公司 | Compressor roller, compressor pump and compressor |
| CN104314815B (en) * | 2014-09-22 | 2016-12-07 | 安徽美芝精密制造有限公司 | Multi-cylinder rotary compressor |
| CN106122019B (en) * | 2016-08-09 | 2018-06-08 | 珠海凌达压缩机有限公司 | A kind of rotary compressor |
| CN108061020B (en) * | 2018-01-08 | 2023-03-10 | 珠海凌达压缩机有限公司 | Compressor partition plate structure, compressor and air conditioner |
| CN108825500B (en) * | 2018-08-06 | 2024-03-29 | 珠海凌达压缩机有限公司 | Compressor pump body and rotary compressor with same |
| CN109236651B (en) * | 2018-10-11 | 2020-03-27 | 珠海格力电器股份有限公司 | Variable-capacity compressor and air conditioning system thereof |
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| JPS59115891U (en) * | 1983-01-26 | 1984-08-04 | 三菱電機株式会社 | Multi-cylinder rotary compressor |
| JP3120489B2 (en) * | 1991-10-01 | 2000-12-25 | 松下電器産業株式会社 | 2-cylinder rotary compressor |
-
2012
- 2012-06-13 JP JP2012133846A patent/JP5781019B2/en active Active
-
2013
- 2013-04-04 CZ CZ2013-260A patent/CZ305876B6/en not_active IP Right Cessation
- 2013-04-26 CN CN 201320217833 patent/CN203272137U/en not_active Expired - Lifetime
- 2013-04-26 CN CN201310149258.3A patent/CN103486040B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1286359A (en) * | 1999-08-31 | 2001-03-07 | 三洋电机株式会社 | Two-cylinder two-stage compressing rotating compressor |
| CN1456813A (en) * | 2002-05-09 | 2003-11-19 | 日立家用电器公司 | Sealed rotor duplex compressor and manufacturing method thereof |
| CN101963154A (en) * | 2009-07-23 | 2011-02-02 | 三菱电机株式会社 | Rotary compressor, its manufacture method and device |
| CN102072156A (en) * | 2009-11-20 | 2011-05-25 | 三菱电机株式会社 | Multi-cylinder rotary compressor and manufacture method thereof |
| CN102312836A (en) * | 2010-06-30 | 2012-01-11 | 三菱电机株式会社 | Multi-cylinder rotary compressor, assembling method thereof and manufacturing device thereof |
| CN203272137U (en) * | 2012-06-13 | 2013-11-06 | 三菱电机株式会社 | Rotary compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN203272137U (en) | 2013-11-06 |
| CZ305876B6 (en) | 2016-04-20 |
| JP5781019B2 (en) | 2015-09-16 |
| CN103486040A (en) | 2014-01-01 |
| CZ2013260A3 (en) | 2014-03-12 |
| JP2013256906A (en) | 2013-12-26 |
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