CN107255077A - Rotary compressor - Google Patents
Rotary compressor Download PDFInfo
- Publication number
- CN107255077A CN107255077A CN201710642653.3A CN201710642653A CN107255077A CN 107255077 A CN107255077 A CN 107255077A CN 201710642653 A CN201710642653 A CN 201710642653A CN 107255077 A CN107255077 A CN 107255077A
- Authority
- CN
- China
- Prior art keywords
- sealing container
- bent axle
- auxiliary section
- motor
- rotary compressor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims abstract description 84
- 230000006835 compression Effects 0.000 claims abstract description 28
- 238000007906 compression Methods 0.000 claims abstract description 28
- 238000005096 rolling process Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 7
- 239000000314 lubricant Substances 0.000 abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000003921 oil Substances 0.000 description 8
- 239000010721 machine oil Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000003507 refrigerant Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/02—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
- H02K7/075—Means for converting reciprocating motion into rotary motion or vice versa using crankshafts or eccentrics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/50—Bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/60—Shafts
- F04C2240/601—Shaft flexion
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses a kind of rotary compressor, the rotary compressor includes：Sealing container；Compression mechanical part, the compression mechanical part is arranged in the sealing container and including bent axle；Motor section, the motor section is arranged in the sealing container and positioned at the top of the compression mechanical part；Motor bearings, the motor bearings is arranged in the sealing container and positioned at the top of the motor section, the motor bearings includes bent axle auxiliary section and sealing container auxiliary section, the bent axle auxiliary section supports the bent axle, and the sealing container auxiliary section is used to coordinate with the inwall of the sealing container；Wherein, stator line bag distance of the sealing container auxiliary section away from the motor section is A, and the stator core thickness of the motor section is T, is met：2mm≤A≤0.4T.The rotary compressor of the present invention, can be effectively reduced the deformation of bent axle, and the lubricant effect of motor bearings is more preferable, and the reliability of rotary compressor is higher, and compression ratio is higher.
Description
Technical field
The invention belongs to compressor manufacturing technical field, in particular to a kind of rotary compressor.
Background technology
Rotary compressor in the process of running, easily draws inclined due to the presence of motor magnetic pull, during compressor operating
Bent axle, influence compressor efficiency and reliability, while producing G sounds.In correlation technique, motor shaft is installed often through in motor side
Carry out Auxiliary support is held, to prevent crankshaft deformation.
Realize the present invention during, inventor find, due to motor bearings be arranged on motor above, for low frequency,
The high thick machine of motor product, refrigerator oil can not be transported to motor shaft bearing portion lubrication motor bearing from central hole of the crankshaft well.
Motor top increases motor bearings, can disturb the fluid of " peace and quiet " originally, make the fluid of sealing container upper space
State is more complicated, it is possible to cause the refrigerator oil carried in refrigerant gas not separate in time, but with system
Outside refrigerant gas discharge sealed volume, and then reduce refrigerator in the amount of the refrigerator oil inside compressor, reduction sealing container
The liquid level of oil so that more difficult to motor bearings fuel feeding.
Above-mentioned factor may result in motor bearings inordinate wear, reduces compressor reliability, there is room for improvement.
The content of the invention
It is contemplated that at least solving one of technical problem present in prior art.Therefore, the present invention proposes a kind of rotation
Rotary compressor, the rotary compressor can be effectively reduced the deformation of bent axle, and the lubricant effect of motor bearings is more preferable.
Rotary compressor according to embodiments of the present invention, including：Sealing container；Compression mechanical part, the compression mechanism
Portion is arranged in the sealing container and including bent axle；Motor section, the motor section is arranged in the sealing container and is located at
The top of the compression mechanical part；Motor bearings, the motor bearings is arranged in the sealing container and positioned at the motor
The top in portion, the motor bearings includes bent axle auxiliary section and sealing container auxiliary section, and the bent axle auxiliary section supports the song
Axle, the sealing container auxiliary section is used to coordinate with the inwall of the sealing container；Wherein, the sealing container auxiliary section is away from institute
The stator line bag distance for stating motor section is A, and the stator core thickness of the motor section is T, is met：2mm≤A≤0.4T.
Rotary compressor according to embodiments of the present invention, by setting up motor bearings and controlling sealing container auxiliary section
The distance of lower surface and the upper surface of stator line bag, can be effectively reduced the deformation of bent axle, and the lubricant effect of motor bearings
More preferably, the reliability of rotary compressor is higher, and compression ratio is higher.
Rotary compressor according to an embodiment of the invention, the sealing container and the sealing container auxiliary section pair
The internal diameter that should locate is D, and the external diameter of the sealing container auxiliary section is D1, is met：0.05mm≤D-D1≤1mm.
Rotary compressor according to an embodiment of the invention, the circumferential overall length of the sealing container auxiliary section is C,
0.1≤C/πD≤0.5。
Rotary compressor according to an embodiment of the invention, the sealing container auxiliary section is multiple, and circumferentially
Evenly-spaced arrangement.
Rotary compressor according to an embodiment of the invention, the lower surface of the bent axle auxiliary section is away from the motor section
Rotor upper surface distance be A1, meet：0.2mm≤A1≤0.3T.
Rotary compressor according to an embodiment of the invention, the rotor is provided with separating plate, the separation sleeve-board
Located at the bent axle auxiliary section, meet：0.05mm≤A3=B3-B1≤5mm, wherein B3 are the separating plate away from crankshaft center
Minimum range.
Rotary compressor according to an embodiment of the invention, the upper surface of the rotor is provided with deep gouge, the bent axle
At least a portion of auxiliary section stretches into the deep gouge.
Rotary compressor according to an embodiment of the invention, the lower surface of the bent axle auxiliary section is away from the deep gouge
Distance from bottom is A2, and the depth of the deep gouge is H1, is met：0.1mm≤A2≤H1-1mm.
Rotary compressor according to an embodiment of the invention, the bent axle auxiliary section and the sealing container auxiliary section
For integral type or split type.
Rotary compressor according to an embodiment of the invention, the motor bearings includes sliding bearing or the axis of rolling
Hold.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become from description of the accompanying drawings below to embodiment is combined
Substantially and be readily appreciated that, wherein：
Fig. 1 is that the stress of rotary compressor according to embodiments of the present invention connects structural representation；
Fig. 2 is the partial structural diagram of rotary compressor according to an embodiment of the invention；
Fig. 3 is the partial structurtes axial view of rotary compressor according to an embodiment of the invention；
Fig. 4-Fig. 9 is the partial structural diagram of rotary compressor according to embodiments of the present invention；
Figure 10 is different height A according to embodiments of the present invention compressor OCR comparison diagrams.
Reference：
Rotary compressor 100,
Motor bearings 10, bent axle auxiliary section 11, sealing container auxiliary section 12,
Stator 21, stator line bag 22, rotor 23, separating plate 24, rotor steam vent 25, deep gouge 26,
Upper bearing (metal) 31, lower bearing 32, bent axle 33, piston 34,
Sealing container 40.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, is for only for ease of the description present invention and simplifies description, rather than indicate or imply that the device or element of meaning must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, limit
Surely there is " first ", one or more this feature can be expressed or be implicitly included to the feature of " second ".The present invention's
In description, unless otherwise indicated, " multiple " are meant that two or more.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
Rotary compressor 100 according to embodiments of the present invention is described below with reference to Fig. 1-Figure 10.
As shown in Fig. 1-Figure 10, rotary compressor 100 according to an embodiment of the invention includes：Sealing container 40,
Compression mechanical part, motor section, motor bearings 10.
Wherein, sealing container 40 can include main casing, upper shell and lower house.
Motor section is arranged in sealing container 40, and motor section is arranged on the top of compression mechanical part, and motor section includes stator
21 and rotor 23, stator 21 also has motor lines bag.
Compression mechanical part is arranged in sealing container 40, and compression mechanical part includes：Upper bearing (metal) 31, lower bearing 32, cylinder, work
Plug 34, slide plate, bent axle 33, bent axle 33 pass through the rotor 23 of motor section, and are fixedly connected with rotor 23, the torque that rotor 23 is rotated
Compression mechanical part is passed to by bent axle 33, compression mechanical part compression refrigerant is driven, upper bearing (metal) 31 and lower bearing 32 play branch
Hold the effect of bent axle 33.
Motor bearings 10 is arranged in sealing container 40, and motor bearings 10 is located at the top of motor section, motor bearings 10
Including bent axle auxiliary section 11 and sealing container auxiliary section 12, the supporting of bent axle auxiliary section 11 bent axle 33, bent axle auxiliary section 11 can be right
Aiding support is played a part of on the top of bent axle 33, and bent axle auxiliary section 11 can coordinate with the gap of bent axle 33, and sealing container coordinates
Portion 12 is used to coordinate with the inwall of sealing container 40, and sealing container auxiliary section 12 can match somebody with somebody with the inwall gap of sealing container 40
Close, such as sealing container auxiliary section 12 can coordinate with main casing body space.
As shown in Fig. 2 stator line bag 22 of the sealing container auxiliary section 12 away from motor section is apart from for A, the stator iron of motor section
Core thickness is T, is met：2mm≤A≤0.4T, such as meet：2mm≤A≤15mm, specifically, A=4mm, A=6mm, A=
9mm, A=12mm etc..
Wherein, 2mm≤A can ensure the safety of motor, as shown in Figure 10, and two groups of examinations are carried out with A=0.1T and A=0.4T
Test, experiment is using OCR sizes as contrast, and OCR characterizes the machine oil content in gas, and OCR is bigger, the freezing that compressor air-discharging leads out
The amount of machine oil is bigger, and so compressor inside cold machine liquid level is lower；Otherwise higher, OCR is smaller to show that the height is better.
Result of the test is referring to Figure 10, it is known that, A one less numerical value of holding is favourable to OCR, and OCR is lower, compressor efficiency
It is higher than COP.Therefore the present invention can not only reduce OCR, can also lift COP.
In the case where ensureing motor section safety, make the lower surface of sealing container auxiliary section 12 close to the upper of stator line bag 22
End face, thus, it is possible to shorten the arm of force L4 in Fig. 1, and then reduces the deformation of bent axle 33.
It is understood that increase motor bearings 10 will improve the stressing conditions of metal (upper 32, have to reliability lifting
Benefit.Fig. 1 represents the bearing capacity of lower bearing 32, Fm to increase Fs in compression mechanical part force analysis schematic diagram after motor bearings 10, Fig. 1
The bearing capacity of upper bearing (metal) 31 is represented, Ft represents the bearing capacity of motor bearings 10, and Fp represents compressed gas gas force, represents that Fe is represented respectively
Motor magnetic pull.Show that Ft and Fe is in opposite direction in figure, but can also consider the two identical situation in actual calculating.Separately due to flat
Weigh block and centrifugal force produced by eccentric crankshaft 33 it is low by 1 with above-mentioned several power compared with~2 two orders of magnitude, therefore this analysis signal
Ignored in figure.
In addition, during without motor bearings 10, the maximum deformation quantity of bent axle 33 is at Fe：
When having motor bearings 10, the maximum deformation quantity of bent axle 33 is at Fe：
And it can be seen from theoretical formula is calculated, L4 is smaller in Fig. 1, and P/PV value improvement amplitudes are more obvious, and (P is pressure, and V is
Linear velocity), by controlling the distance between the lower surface of bent axle auxiliary section 11 and the upper surface of rotor 23, L4 can be reduced, from
And improve the P/PV values of rotary compressor 100, and make upper bearing (metal) 31 and lower bearing 32P/PV values optimal under existence conditions, together
When motor bearings 10 P/PV values also will not be too high.
According to the above, to certain model compressor, (Pd is pressure at expulsion, Ps under Pd/Ps=4.35/0.53 operating modes
For pressure of inspiration(Pi)), when rotating speed is 60rps, each bearing P values, PV value result of calculations see the table below：
Table 1 whether there is motor bearings P/PV value result of calculation tables
As seen from the above table, metal (upper 32P/PV values have the improvement of certain amplitude, and motor after increase motor bearings 10
The P/PV values of bearing 10 are much smaller than metal (upper 32.
Equally by taking the type as an example, during no motor bearings 10, the maximum deformation quantity of bent axle 33 is at Fe：X0=5.44E-5m,
When having motor bearings 10, the maximum deformation quantity of bent axle 33 is at Fe：X1=7.84E-6m.
That is, for the type, X1/X0=1/7, L4 has enough diminution spaces, by reducing L4, then Fe
Place's maximum deformation quantity of bent axle 33 is can be smaller, on the one hand can improve compressor reliability, still further aspect can also make song
It is thinner that axle 33 is done, and lifts compressor Energy Efficiency Ratio.
Rotary compressor 100 according to embodiments of the present invention, by setting up motor bearings 10 and controlling sealing container to match somebody with somebody
The distance of the lower surface in conjunction portion 12 and the upper surface of stator line bag 22, can be effectively reduced the deformation of bent axle 33, and motor shaft
The lubricant effect for holding 10 is more preferable, and the reliability of rotary compressor 100 is higher, and compression ratio is higher.
Rotary compressor 100 in accordance with a preferred embodiment of the present invention, as shown in Figures 2 and 3, sealing container 40 with
The internal diameter of the corresponding position of sealing container auxiliary section 12 is D, and the external diameter of sealing container auxiliary section 12 is D1, is met：0.05mm≤D-D1
≤ 1mm, further, 0.05mm≤D-D1≤0.5mm.
Rotary compressor 100 in accordance with a preferred embodiment of the present invention, as shown in Figures 2 and 3, sealing container coordinate
The circumferential overall length in portion 12 is C, 0.1≤C/ π D≤0.5.Sealing container auxiliary section 12 can be to be multiple, such as three in Fig. 3,
And multiple sealing container auxiliary sections 12 circumferentially evenly-spaced arrangement, the circumferential overall length C of sealing container auxiliary section 12 is multiple
The overall circumference of sealing container auxiliary section 12.
It is understood that one more satisfactory state of compressor interior flow field is：The upper space of stator 21 is isolated
Come refrigerator oil can along sealing container 40 wall, then by the gap between stator 21 and sealing container 40, and
When be back to the bottom of sealing container 40, it is ensured that the inside cold machine oil liquid level of sealing container 40 is in a rational height.
It can prevent sealing container auxiliary section 12 from hindering too much by the circumferential overall length for limiting sealing container auxiliary section 12
Machine oil flows back, and the oil level reduction of the upper space of stator 21, optimization upper space flow field, and machine oil can be as early as possible along sealing container
40 wall backflow.
As shown in Fig. 1-Fig. 9, rotary compressor 100 in accordance with another embodiment of the present invention includes：Sealing container 40,
Compression mechanical part, motor section, motor bearings 10.
Wherein, sealing container 40 can include main casing, upper shell and lower house.
Motor section is arranged in sealing container 40, and motor section is arranged on the top of compression mechanical part, and motor section includes stator
21 and rotor 23, stator 21 also has motor lines bag.
Compression mechanical part is arranged in sealing container 40, and compression mechanical part includes：Upper bearing (metal) 31, lower bearing 32, cylinder, work
Plug 34, slide plate, bent axle 33, bent axle 33 pass through the rotor 23 of motor section, and are fixedly connected with rotor 23, the torque that rotor 23 is rotated
Compression mechanical part is passed to by bent axle 33, compression mechanical part compression refrigerant is driven, upper bearing (metal) 31 and lower bearing 32 play branch
Hold the effect of bent axle 33.
Motor bearings 10 is arranged in sealing container 40, such as motor bearings 10 can be arranged on the corresponding area of main casing
Domain, and motor bearings 10 is located at the top of motor section, motor bearings 10 includes bent axle auxiliary section 11 and sealing container auxiliary section 12,
Bent axle auxiliary section 11 supports bent axle 33, and bent axle auxiliary section 11 can play a part of aiding support, bent axle to the top of bent axle 33
Auxiliary section 11 can coordinate with the gap of bent axle 33, and sealing container auxiliary section 12 is used to coordinate with the inwall of sealing container 40, sealing
Container-engaging portion 12 can coordinate with the inwall gap of sealing container 40, such as sealing container auxiliary section 12 can be between main casing
Gap coordinates.
As shown in Fig. 2 the upper surface distance of rotor 23 of the lower surface of bent axle auxiliary section 11 away from motor section is A1, meet：
0.2mm≤A1≤0.3T, such as meet：0.1mm≤A1≤10mm, further, 0.2mm≤A1≤0.3T are such as met：
0.2mm≤A1≤10mm, specifically, A1=2mm, A1=4mm, A1=6mm etc..
That is, in the case where ensureing motor section safety, making the lower surface of bent axle auxiliary section 11 close to motor section
The upper surface of rotor 23, thus, it is possible to shorten the arm of force L4 in Fig. 1, and then reduces the deformation of bent axle 33.
L4 has enough diminution spaces, by reducing L4, then the maximum deformation quantity of bent axle 33 is can be smaller at Fe, and one
Aspect can improve compressor reliability, and still further aspect can also make thinner, the lifting compressor Energy Efficiency Ratio that bent axle 33 is done.
Rotary compressor 100 according to embodiments of the present invention, by setting up motor bearings 10 and controlling bent axle auxiliary section
The distance of 11 lower surface and the upper surface of rotor 23, can be effectively reduced the deformation of bent axle 33, and the profit of motor bearings 10
More preferably, the reliability of rotary compressor 100 is higher, and compression ratio is higher for sliding effect.
Rotary compressor 100 in accordance with a preferred embodiment of the present invention, as shown in Fig. 2 under bent axle auxiliary section 11
Ultimate range of the end away from the center of bent axle 33 is B1, and the rotor steam vent 25 of rotor 23 is B2 away from the center minimum range of bent axle 33, full
Foot：B1≤B2.It is understood that ultimate range of the lower end of bent axle auxiliary section 11 away from the center of bent axle 33 can coordinate for bent axle
The external diameter of the lower end in portion 11, by limiting B1≤B2, such bent axle auxiliary section 11 does not influence rotor steam vent 25 to be vented.
Rotary compressor 100 in accordance with a preferred embodiment of the present invention, as Figure 4-Figure 6, on rotor 23 can be with
Provided with separating plate 24, separating plate 24 is sheathed on bent axle auxiliary section 11, and separating plate 24 can be fixedly connected with rotor 23, such as separate
Plate 24 can be by rivet in the end plate of rotor 23, and separating plate 24 is arranged to be coordinated with the gap of bent axle auxiliary section 11, further
Ground, meets：0.05mm≤A3=B3-B1≤5mm, wherein B3 are minimum range of the separating plate 24 away from the center of bent axle 33, that is,
The internal bore radius of separating plate 24, A3 is separating plate 24 and the gap width of bent axle auxiliary section 11.
By setting separating plate 24, it can prevent the gas that rotor steam vent 25 is discharged from flowing discharge directly up rotatably
Compressor 100, the gas that separating plate 24 is discharged to rotor steam vent 25 plays a part of stop, and gas is in segregated plate 24
Lateral flow after stop, the plate 24 that can be separated is got rid of at stator line bag 22, and stator line bag 22 can filter the oil in gas, with
Obtain lower OCR, and control separating plate 24 and the gap of bent axle auxiliary section 11, can make greater proportion of gas radially to
It is outer to flow to stator line bag 22, it can so ensure the oil level of rotary compressor 100, while can have the oily to motor of abundance
Bearing 10 is supplied.
Rotary compressor 100 in accordance with a preferred embodiment of the present invention, as shown in fig. 7, the upper surface of rotor 23 can
Deep gouge 26 is stretched into at least a portion provided with deep gouge 26, bent axle auxiliary section 11, it is heavy that the lower end of bent axle auxiliary section 11 can be stretched into
Groove 26, so, on the premise of the bearing length of bent axle auxiliary section 11 is ensured, can further reduce L4, reduce rotary pressure
The axial dimension of contracting machine 100, the deflection of bent axle 33 is smaller.
Further, as shown in fig. 7, distance from bottom of the lower surface of bent axle auxiliary section 11 away from deep gouge 26 is A2, deep gouge 26
Depth be H1, meet：0.1mm≤A2≤H1-1mm, on the one hand can ensure the safety of motor section, on the other hand as much as possible
Reduce L4.The depth of deep gouge 26 is H1 and the ratio of the height of rotor 23 is not more than 0.3, and the setting of such deep gouge 26 does not influence to turn
The performance of son 23.
As shown in Fig. 2, Fig. 4 and Fig. 7, bent axle auxiliary section 11 can be split type with sealing container auxiliary section 12.
As shown in Fig. 4, Fig. 5, Fig. 7 and Fig. 8, motor bearings 10 includes sliding bearing.
As shown in Figure 5 and Figure 8, bent axle auxiliary section 11 and sealing container auxiliary section 12 are integral type, such motor bearings 10
Structure it is simpler, manufacturing cost is low.
As shown in Fig. 6 and Fig. 9, motor bearings 10 includes rolling bearing, and specifically, bent axle auxiliary section 11 is matched somebody with somebody with sealing container
Conjunction portion 12 is integral type, and bent axle auxiliary section 11 is rolling bearing type, on the one hand can solve the difficult situation of sliding bearing fuel feeding,
On the other hand the problem of assembly precision of integrated motor bearing 10 is high can also be solved.
Above-mentioned long measure is mm.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means to combine specific features, the knot that the embodiment or example are described
Structure, material or feature are contained at least one embodiment of the present invention or example.In this manual, to above-mentioned term
Schematic representation is not necessarily referring to identical embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can in an appropriate manner be combined in any one or more embodiments or example.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
In the case of departing from the principle and objective of the present invention a variety of change, modification, replacement and modification can be carried out to these embodiments, this
The scope of invention is limited by claim and its equivalent.
Claims (10)
1. a kind of rotary compressor, it is characterised in that including：
Sealing container；
Compression mechanical part, the compression mechanical part is arranged in the sealing container and including bent axle；
Motor section, the motor section is arranged in the sealing container and positioned at the top of the compression mechanical part；
Motor bearings, the motor bearings is arranged in the sealing container and positioned at the top of the motor section, the motor
Bearing includes bent axle auxiliary section and sealing container auxiliary section, and the bent axle auxiliary section supports the bent axle, and the sealing container is matched somebody with somebody
Conjunction portion is used to coordinate with the inwall of the sealing container；
Wherein, stator line bag distance of the sealing container auxiliary section away from the motor section is A, the stator core of the motor section
Thickness is T, is met：2mm≤A≤0.4T.
2. rotary compressor according to claim 1, it is characterised in that the sealing container is matched somebody with somebody with the sealing container
The internal diameter of conjunction portion corresponding position is D, and the external diameter of the sealing container auxiliary section is D1, is met：0.05mm≤D-D1≤1mm.
3. rotary compressor according to claim 2, it is characterised in that the circumferential overall length of the sealing container auxiliary section
For C, 0.1≤C/ π D≤0.5.
4. rotary compressor according to claim 1, it is characterised in that the sealing container auxiliary section is multiple, and
Circumferentially evenly-spaced arrangement.
5. rotary compressor according to claim 1, it is characterised in that the lower surface of the bent axle auxiliary section is away from described
The upper surface distance of the rotor of motor section is A1, is met：0.2mm≤A1≤0.3T.
6. rotary compressor according to claim 5, it is characterised in that the rotor is provided with separating plate, described point
The bent axle auxiliary section is located at from sleeve-board, is met：0.05mm≤A3=B3-B1≤5mm, wherein B3 are the separating plate away from bent axle
The minimum range at center.
7. rotary compressor according to claim 5, it is characterised in that the upper surface of the rotor is provided with deep gouge, institute
At least a portion for stating bent axle auxiliary section stretches into the deep gouge.
8. rotary compressor according to claim 7, it is characterised in that the lower surface of the bent axle auxiliary section is away from described
The distance from bottom of deep gouge is A2, and the depth of the deep gouge is H1, is met：0.1mm≤A2≤H1-1mm.
9. the rotary compressor according to any one of claim 1-4, it is characterised in that the bent axle auxiliary section and institute
Sealing container auxiliary section is stated for integral type or split type.
10. the rotary compressor according to any one of claim 1-4, it is characterised in that the motor bearings includes
Sliding bearing or rolling bearing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710642653.3A CN107255077B (en) | 2017-07-31 | 2017-07-31 | Rotary compressor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710642653.3A CN107255077B (en) | 2017-07-31 | 2017-07-31 | Rotary compressor |
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| CN107255077B CN107255077B (en) | 2020-04-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209886A (en) * | 2017-07-07 | 2019-01-15 | 上海海立电器有限公司 | A kind of rotor-type compressor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09144679A (en) * | 1995-11-20 | 1997-06-03 | Hitachi Ltd | Rotary compressor |
| JP2005245148A (en) * | 2004-02-27 | 2005-09-08 | Mitsubishi Electric Corp | Permanent magnet motor, enclosed compressor, and fan motor |
| WO2013065706A1 (en) * | 2011-10-31 | 2013-05-10 | 東芝キヤリア株式会社 | Sealed rotary compressor and refrigeration cycle device |
| CN207297361U (en) * | 2017-07-31 | 2018-05-01 | 广东美芝制冷设备有限公司 | Rotary compressor |
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2017
- 2017-07-31 CN CN201710642653.3A patent/CN107255077B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09144679A (en) * | 1995-11-20 | 1997-06-03 | Hitachi Ltd | Rotary compressor |
| JP2005245148A (en) * | 2004-02-27 | 2005-09-08 | Mitsubishi Electric Corp | Permanent magnet motor, enclosed compressor, and fan motor |
| WO2013065706A1 (en) * | 2011-10-31 | 2013-05-10 | 東芝キヤリア株式会社 | Sealed rotary compressor and refrigeration cycle device |
| CN103906928A (en) * | 2011-10-31 | 2014-07-02 | 东芝开利株式会社 | Sealed rotary compressor and refrigeration cycle device |
| CN207297361U (en) * | 2017-07-31 | 2018-05-01 | 广东美芝制冷设备有限公司 | Rotary compressor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209886A (en) * | 2017-07-07 | 2019-01-15 | 上海海立电器有限公司 | A kind of rotor-type compressor |
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| CN107255077B (en) | 2020-04-17 |
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