CN107061283A - Rotary compressor - Google Patents
Rotary compressor Download PDFInfo
- Publication number
- CN107061283A CN107061283A CN201710055064.5A CN201710055064A CN107061283A CN 107061283 A CN107061283 A CN 107061283A CN 201710055064 A CN201710055064 A CN 201710055064A CN 107061283 A CN107061283 A CN 107061283A
- Authority
- CN
- China
- Prior art keywords
- low pressure
- demarcation strip
- clutch shaft
- shaft bearing
- 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.)
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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
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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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
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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
- F04C2240/00—Components
- F04C2240/80—Other components
Abstract
The invention discloses a kind of rotary compressor, including：Housing, high-low pressure demarcation strip, motor section and pump housing portion.Accommodating chamber is limited in housing, high-low pressure demarcation strip is located in housing, high-low pressure demarcation strip by accommodating chamber to be separated into high pressure chest and low pressure chamber, and high-low pressure demarcation strip is provided with pilot hole.Motor section is located in low pressure chamber, and motor section includes stator and rotor.Pump housing portion is located in high pressure chest, and pump housing portion includes：Cylinder assembly, bent axle, clutch shaft bearing and second bearing, clutch shaft bearing and second bearing coordinate the opposite end in cylinder assembly, bent axle runs through cylinder assembly, and bent axle extend into low pressure chamber to be connected with rotor by pilot hole, wherein, clutch shaft bearing is set adjacent to high-low pressure demarcation strip, and seal is provided between clutch shaft bearing and high-low pressure demarcation strip.According to the present invention rotary compressor, can avoid high pressure chest inner high voltage leakage of refrigerant to efficiency caused by low pressure chamber reduce the problem of.
Description
Technical field
The present invention relates to compressor field, more particularly, to a kind of rotary compressor.
Background technology
Rotary compressor is empty in family expenses by high volume applications the advantages of its is simple in construction, easy to manufacture, cost performance is high
Tune field, but because limiting the field that uses, such as aircraft, tank, wheel the problems such as its volume is big, installation direction size is big, quality is heavy
The refrigeration occasion such as ship, bus, family-sized car, is typically only capable to the compressor arrangement using huge discharge small sizes such as vortex, pistons.
With developing rapidly for electric automobile, the power of vehicle refrigeration compressor is also varied widely, conventional hair
Compressor of the motivation with wheel drive has been no longer desirable for electric automobile, and electric automobile carries its compressor using electric power as the energy
Power set are also changed into motor from engine.The most direct result of this change is no longer turned for the rotating speed of compressor by engine
Speed limit system, the compressor that electric automobile is used allows to run with specified 4000 revs/min of speed, and this is far above fuel power
1800 revs/min of rotating speed, this change result the most direct is that compressor displacement can reduce.Band provisioned in conventional fuel oil car
Wheel drive compressor displacement is changed to after motor driven compressor in 120CC or so, and discharge capacity only needs to 30CC, and if entered
One-step optimization is using Compressed CO_2 refrigerant as refrigerating system coolant, then same capabilities compressor only needs to 4.6CC, and this exactly revolves
The scope of application of rotary compressor.
But conventional rotary compressor is that compressor body is oversized the problem of be used for maximum on electric automobile, how
Miniaturization is to extend the core topic that rotary compressor is applied to vehicular field.
The content of the invention
The application aims to solve the problem that technical problem present in prior art.Therefore, the present invention is intended to provide a kind of rotary
Compressor, the rotary compressor can solve the problem of high and low pressure side cavity is separated in housing, so as to be conducive to implementing compressor
Miniaturization Design.
It is another object of the present invention to provide a kind of rotary compressor, the rotary compressor utilizes O-ring
Modification performance solves the problem of high and low pressure side cavity is separated in housing, so as to be conducive to implementing the Miniaturization Design of compressor.
Rotary compressor according to embodiments of the present invention, including：Accommodating chamber is limited in housing, the housing；Just
Demarcation strip is pressed, the high-low pressure demarcation strip is located in the housing so that the accommodating chamber is separated into high pressure chest and low pressure chamber, institute
High-low pressure demarcation strip is stated provided with pilot hole；Motor section, the motor section is located in the low pressure chamber, and the motor section includes fixed
Son and rotor；Pump housing portion, the pump housing portion is located in the high pressure chest, and the pump housing portion includes：Cylinder assembly, bent axle, first
Bearing and second bearing, the clutch shaft bearing and the second bearing coordinate the opposite end in the cylinder assembly, the song
Axle runs through the cylinder assembly, and the bent axle extend into the low pressure chamber to be connected with the rotor by the pilot hole
Connect, wherein, the clutch shaft bearing is set adjacent to the high-low pressure demarcation strip, the clutch shaft bearing and the high-low pressure demarcation strip it
Between be provided with seal.
Rotary compressor according to embodiments of the present invention, by setting high-low pressure demarcation strip to make the receiving of compressor housing
Chamber is separated into high pressure chest and low pressure chamber, and motor section is placed in low pressure chamber, and pump housing portion is placed in high pressure chest, so that low pressure chamber can
Gas-liquid separation chamber and the function of liquid storage cylinder are undertaken simultaneously, and the gas in low pressure chamber after gas-liquid separation is flowed in pump housing portion and carried out again
Compression；By setting seal between the clutch shaft bearing in pump housing portion and high-low pressure demarcation strip, so that when high-low pressure demarcation strip exists
Under the effect of high-low pressure pressure differential, excellent sealing is remained between low pressure chamber and high pressure chest, so as to avoid high pressure chest inner high voltage refrigerant
It is leaked to the problem of efficiency caused by low pressure chamber is reduced.
In certain embodiments, the seal is O-ring, the rotation of the compression direction of the O-ring and the bent axle
Axis perpendicular.
In certain embodiments, the decrement of the O-ring is 10%~30%.
In certain embodiments, the line footpath of the O-ring is 1.0mm~3.5mm.
In certain embodiments, the wheel hub of the clutch shaft bearing, which stops, is against on the end face of the high-low pressure demarcation strip；Or,
The wheel hub of the clutch shaft bearing coordinates in the pilot hole.
In certain embodiments, the high-low pressure demarcation strip is provided with mounting groove, and the seal coordinates to be installed described
In groove.
In certain embodiments, the mounting groove is located on the internal perisporium of the pilot hole；Or, the mounting groove is located at
On the end face of the direction cylinder assembly of the high-low pressure demarcation strip.
In certain embodiments, when the mounting groove is located on the internal perisporium of the pilot hole, the two of the mounting groove
Side is opened with two end surfaces of the high-low pressure demarcation strip respectively, or the cylinder is only oriented towards in the both sides of the mounting groove
The side of component is opened wide.
In certain embodiments, the refrigerant that the rotary compressor is used is R744.
Rotary compressor according to embodiments of the present invention, including：Accommodating chamber is limited in housing, the housing；Just
Demarcation strip is pressed, the high-low pressure demarcation strip is located in the housing so that the accommodating chamber is separated into high pressure chest and low pressure chamber, institute
High-low pressure demarcation strip is stated provided with pilot hole；Motor section, the motor section is located in the low pressure chamber, and the motor section includes fixed
Son and rotor；Pump housing portion, the pump housing portion is located in the high pressure chest, and the pump housing portion includes：Cylinder assembly, bent axle, first
Bearing and second bearing, the clutch shaft bearing and the second bearing coordinate the opposite end in the cylinder assembly, the song
Axle runs through the cylinder assembly, and the bent axle extend into the low pressure chamber to fix with the rotor by the pilot hole
Connection, wherein, the clutch shaft bearing is set adjacent to the high-low pressure demarcation strip, the clutch shaft bearing and the high-low pressure demarcation strip
Between be provided around the O-ring of the bent axle, the decrement of the O-ring is 10%~30%, and the line footpath of the O-ring is
1.0mm~3.5mm, the refrigerant that the rotary compressor is used is R744.
Rotary compressor according to embodiments of the present invention, using setting the O-ring of decrement and line footpath to clutch shaft bearing
Sealed between high-low pressure demarcation strip, product possesses refrigerating capacity greatly, lightweight, small volume, high reliability.
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 the structural representation of rotary compressor according to embodiments of the present invention；
Fig. 2 is the assembling schematic diagram of high-low pressure demarcation strip according to an embodiment of the invention, clutch shaft bearing and seal；
Fig. 3 is the structural representation of high-low pressure demarcation strip according to an embodiment of the invention；
Fig. 4 is the compression schematic diagram of O-ring according to embodiments of the present invention；
Fig. 5 is the assembling signal of high-low pressure demarcation strip in accordance with another embodiment of the present invention, clutch shaft bearing and seal
Figure；
Fig. 6 is the assembling signal of the high-low pressure demarcation strip, clutch shaft bearing and seal according to another embodiment of the invention
Figure；
Fig. 7 is the structural representation in pump housing portion according to embodiments of the present invention；
Fig. 8 is the assembling schematic diagram of cylinder according to embodiments of the present invention, roller and slide plate；
Fig. 9 is the structural representation of clutch shaft bearing according to embodiments of the present invention；
Figure 10 is the structural representation for the rotary compressor that high-low pressure separation is carried out using clutch shaft bearing；
Figure 11 is clutch shaft bearing deformation pattern under high-low pressure pressure difference in Figure 10；
Figure 12 is the structure of the rotary compressor for the high-low pressure demarcation strip progress high-low pressure separation that could be used without seal
Schematic diagram；
Figure 13 is high-low pressure demarcation strip deformation pattern under high-low pressure pressure difference in Figure 12.
Reference：
Rotary compressor 100,
Housing 1, the first sub- shell 11, the second sub- shell 12, accommodating chamber 13, high pressure chest 131, low pressure chamber 132,
High-low pressure demarcation strip 2, pilot hole 21, mounting groove 22,
Motor section 3, stator 31, rotor 32,
Pump housing portion 4, cylinder assembly 41, cylinder 411, dividing plate 412, bent axle 42, main part 421, eccentric part 422, long shaft part
423rd, clutch shaft bearing 43, flange 431, wheel hub 432, step 433, second bearing 44, roller 45, slide plate 46, rotation axis L,
Seal 5.
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, it is intended to for explaining the present invention, and be not considered as limiting the invention.
Below with reference to the accompanying drawings the structure of rotary compressor 100 according to embodiments of the present invention is described.
Rotary compressor 100 according to embodiments of the present invention, as shown in figure 1, including：Housing 1, high-low pressure demarcation strip 2,
Motor section 3 and pump housing portion 4.
As shown in figure 1, limiting accommodating chamber 13 in housing 1, high-low pressure demarcation strip 2 is located in housing 1, high-low pressure demarcation strip
2 by accommodating chamber 13 to be separated into high pressure chest 131 and low pressure chamber 132, and high-low pressure demarcation strip 2 is provided with pilot hole 21.Motor section 3
It is located in low pressure chamber 132, pump housing portion 4 is located in high pressure chest 131, motor section 3 includes stator 31 and rotor 32.
Specifically, housing 1 is closed container, in the example illustrated in figure 1, and housing 1 includes the first sub- shell of sub- shell 11 and second
12, the first sub- shell 12 of sub- shell 11 and second is oppositely arranged, high-low pressure demarcation strip 2 be folded in the first sub- shell 12 of sub- shell 11 and second it
Between.First sub- shell 11 is opened wide towards the side of high-low pressure demarcation strip 2, is limited between the sub- shell 11 of high-low pressure demarcation strip 2 and first
Go out low pressure chamber 132, the second sub- shell 12 is opened wide towards the side of high-low pressure demarcation strip 2, the sub- shell 12 of high-low pressure demarcation strip 2 and second
Between limit high pressure chest 131.
In low pressure chamber 132, it is enclosed on outside stator 31 on rotor 32, stator 31 is securable on the internal perisporium of housing 1, stator
31 are specifically securable on the inner peripheral surface of the first sub- shell 11.
As shown in fig. 7, pump housing portion 4 includes：Cylinder assembly 41, bent axle 42, clutch shaft bearing 43 and second bearing 44, first axle
Hold 43 and second bearing 44 coordinate opposite end in cylinder assembly 41, bent axle 42 runs through cylinder assembly 41.As shown in figure 1, bent
Axle 42 is extend into be connected with rotor 32 in low pressure chamber 132 by pilot hole 21, wherein, clutch shaft bearing 43 is adjacent to high-low pressure point
Dividing plate 2 is set, and seal 5 is provided between clutch shaft bearing 43 and high-low pressure demarcation strip 2, and seal 5 is set around bent axle 42.
Specifically, as shown in Figure 7 and Figure 8, pump housing portion 4 is by bent axle 42, cylinder assembly 41, second bearing 44, clutch shaft bearing
43rd, roller 45 and slide plate 46 etc. are constituted, and cylinder assembly 41 may include one or more cylinders 411, when cylinder 411 is multiple,
Dividing plate 412 is provided between two neighboring cylinder 411.Wherein as shown in figure 1, bent axle 42 runs through cylinder assembly 41 and the overcoat of rotor 32
On bent axle 42, bent axle 42 be fixedly connected with rotor 32 with the synchronous rotary of rotor 32.44 points of clutch shaft bearing 43 and second bearing
The opposite end of cylinder assembly 41 is not located at, and bent axle 42 coordinates rotationally to set with clutch shaft bearing 43 and second bearing 44 respectively
In high pressure chest 131.
As shown in Figure 7 and Figure 8, bent axle 42 includes main part 421, the eccentric part 422 and major axis formed on main part 421
It is enclosed on rotor 32, is located in cylinder 411 to the eccentric rotary of roller 45, roller 45 is assemblied in bent axle in section 423, long shaft part 423
On 42 eccentric part 422, bent axle 42 can drive the refrigerant in the eccentric rotary of roller 45 and compression cylinder 411.
Slide plate 46 is placed in the vane slot of cylinder 411, and roller 45, slide plate 46 and cylinder 411 constitute compression chamber after assembling.
Bent axle 42 rotates under the driving of motor section 3 during work, and drives roller 45 to be rotated around the axle center of cylinder 411, as bent axle 42 rotates,
The compression chamber volume cyclically-varying in formation pump housing portion of institute 4, realizes compression process.
Explanation is needed exist for, the embodiment of the present invention is according to Miniaturization Design theory, in conventional rotary compressor base
Reservoir structure is eliminated on plinth, reservoir liquid storage function is moved in housing, the physical dimensions such as housing, motor are carried out
Miniaturization Design.
If wanting compressor body also to have reservoir function concurrently, moved to equivalent to by the liquid storage function of compressor in housing,
The structure that compressor design must be then separated into high-low pressure, by the accommodating chamber in compression case body be separated into low pressure chamber and
High pressure chest.
For in this embodiment of the present invention, the low pressure chamber 132 of motor section 3 will be provided with as liquid storage cylinder, and built in pump housing portion 4
In high pressure chest 131.Low pressure chamber 132 is as liquid storage cylinder, and external refrigeration agent composition, which is flowed into, carries out gas-liquid point in low pressure chamber 132
From, and separate after gas refrigerant can by gas passage it is (not shown) be oriented to high pressure chest 131 in cylinder 411 in, with
Complete compression process.
For high-low pressure in compression case body is separated, it is that height is realized using clutch shaft bearing 43 to have a kind of organization plan
Chamber is pressed to separate.As shown in Figure 10, clutch shaft bearing 43 is high pressure in the side towards cylinder assembly 41, towards the one of motor section 3
Side is low pressure, while bent axle 42 is needed through clutch shaft bearing 43, long shaft part 423 and the motor section 3 of bent axle 42 are assembled, bent axle 42
Eccentric part 422 is assembled with cylinder assembly 41, realizes that power is transmitted.Because bent axle 42 and high-low pressure both sides intracavitary have assembling to close
System, while bent axle 42 will rotate transmission power and sealing at a high speed, larger difficulty is brought to the design of this part-structure.
Specifically, due to clutch shaft bearing 43 the side towards motor section 3 be low-pressure gas, clutch shaft bearing 43 is in direction
The side of cylinder assembly 41 is gases at high pressure, and as shown in figure 11, clutch shaft bearing 43 subjects under height differential pressure action and is up to about
1000kg power, such big making every effort to promote makes clutch shaft bearing 43 occur moderate finite deformation.Meanwhile, cylinder 411 is consolidated with clutch shaft bearing 43
Fixed connection, cylinder 411 is also subject at larger deformation, particularly vane slot, and the deformation of cylinder 411 and clutch shaft bearing 43 is easy
Cause compressor failure.
That is, the main cause that can be seen that the deformation of clutch shaft bearing 43 and compressor failure through above-mentioned analysis may
That clutch shaft bearing 43 subjects larger pressure difference in two end faces, this effect deforms it, can clutch shaft bearing 43 be used as one essence
Close element is present on compressor, and this deformation is unacceptable.For Compressed CO_2 refrigerant, this effect will
Can be more obvious.
To chat problem in solution, inventor is additionally arranged the structure of high-low pressure demarcation strip 2 in compressor arrangement, such as Figure 12 institutes
Show, the clutch shaft bearing 43 and housing 1 by high-low pressure demarcation strip 2 simultaneously with pump housing portion 4 are assembled, constitute high pressure chest 131 and low pressure chamber
132, needing the height compressive load born by clutch shaft bearing 43 to move on high-low pressure demarcation strip 2 originally, to ensure clutch shaft bearing
43 functional reliability.
But it is due to that high-low pressure demarcation strip 2 can be also deformed under differential pressure action, as shown in figure 13, high-low pressure demarcation strip
2 original pressure-bearing plane deformations are that the pilot hole 21 in curved surface, high-low pressure demarcation strip 2 is deformed into taper by former column, after deformation
Easily revealed after coordinating on the wheel hub face of cylinder of pilot hole 21 and clutch shaft bearing 43, it is difficult to form sealing.
Therefore, as depicted in figs. 1 and 2, will be set in the embodiment of the present invention between clutch shaft bearing 43 and high-low pressure demarcation strip 2
Seal 5, the gap between clutch shaft bearing 43 and high-low pressure demarcation strip 2 so blocked, make height equivalent to using seal 5
Low pressure separation plate 2 is deformed anyway under height pressure difference, can be completed well between high pressure chest 131 and low pressure chamber 132
Seal operation, improves the work work of rotary compressor 100 by property and efficiency.
Rotary compressor 100 according to embodiments of the present invention, by setting high-low pressure demarcation strip 2 to make compressor housing 1
Accommodating chamber 13 be separated into high pressure chest 131 and low pressure chamber 132, motor section 3 is placed in low pressure chamber 132, pump housing portion 4 is placed in height
Press in chamber 131, so that low pressure chamber 132 can undertake gas-liquid separation chamber and the function of liquid storage cylinder simultaneously, and gas-liquid is divided in low pressure chamber 132
Gas from after is flowed to again to be compressed in pump housing portion 4；By the clutch shaft bearing 43 in pump housing portion 4 and high-low pressure demarcation strip 2 it
Between seal 5 is set so that when high-low pressure demarcation strip 2 is under the effect of high-low pressure pressure differential, low pressure chamber 132 and high pressure chest 131 it
Between remain to excellent sealing so that avoid the inner high voltage leakage of refrigerant of high pressure chest 131 to caused by low pressure chamber 132 efficiency reduce ask
Topic.
The rotary compressor 100 of the embodiment of the present invention, can be horizontal rotary compressor, or vertical rotating formula pressure
Contracting machine.The rotary compressor 100 of this miniaturization, can be equipped on vehicle, can also be arranged on the system such as aircraft, tank, steamer
Awkward silence at a meeting is closed, i.e. the rotary compressor 100 of the embodiment of the present invention can be widely used in field of mobile equipment.
In addition in embodiments of the present invention, rotary compressor 100 can use refrigerant R744, that is to say, that the present invention
The rotary compressor 100 of embodiment can significantly be reduced using carbon dioxide refrigerant as refrigerant using this refrigerant
Compressor displacement, due to saving after reservoir, the size that compressor makees compressor after refrigerant using carbon dioxide refrigerant can
It is designed to very small, application also will widely.
In some embodiments of the invention, as shown in figs 2-4, seal 5 is O-ring, the compression direction of seal 5
Rotation axis L with bent axle 42 is perpendicular.So as to which O-ring can be by excellent sealing between high-low pressure demarcation strip 2 and clutch shaft bearing 43.
Specifically, it can be coordinated between the wheel hub 432 of high-low pressure demarcation strip 2 and clutch shaft bearing 43 using gap, gap width can be situated between
Between 0.1~0.3, even if the endoporus of high-low pressure demarcation strip 2 is deformed into bellmouth under differential pressure action, also it is unlikely to and first axle
Hold 43 wheel hub 432 produce interference contact, can prevent high-low pressure demarcation strip 2 because pilot hole 21 is deformed and to the wheel of clutch shaft bearing 43
Hub 432 forms mechanical presses and is deformed.
O-ring can realize high-low pressure demarcation strip 2 with clutch shaft bearing 43 in axial sealing.Specifically, height during work
Pressure demarcation strip 2 produces the axial deformation by high side to low side because of differential pressure action, when high-low pressure demarcation strip 2 and bearing wheel
After hub 432 is using O-ring sealing, even if high-low pressure demarcation strip 2 produces the axis direction displacement of bent axle 42, O-ring is not interfered with yet
Sealing effectiveness.
After the sealing structure above chatted between high-low pressure demarcation strip 2 and clutch shaft bearing 43, sealing station 20Mpa can be achieved
Zero leakage under pressure differential, while the axial displacement of high-low pressure demarcation strip 2 and two features of radial seal of O-ring are independently deposited
Also it can ensure that the deformation of high-low pressure demarcation strip 2 is isolated with the transmission of clutch shaft bearing 43.
In order to ensure the sealing effectiveness of O-ring, design O-ring can be between O-ring external diameter in the decrement of compression direction
10%~30%, it so can both ensure the accuracy of manufacture of clutch shaft bearing 43 and high-low pressure demarcation strip 2, ensure that its sealing effect
Really.Here, as shown in figure 4, decrement refers to the decrement in compression direction size after O-ring assembling.
In order to ensure the intensity of high-low pressure demarcation strip 2, the groove dimensions of the assembling O-ring of high-low pressure demarcation strip 2 can not be excessive, and
And the line footpath of O-ring is between 1.0mm~3.5mm, you can ensure its sealing effectiveness.Here, the section of O-ring is circular
, the line footpath of O-ring refers to O-ring section diameter of a circle.
In an embodiment of the present invention, clutch shaft bearing 43 and high-low pressure demarcation strip 2 can have a variety of assembling modes, the two it
Between seal 5 can also have various structures.
Specifically, as shown in figure 9, clutch shaft bearing 43 has flange 431 and wheel hub 432, as shown in figure 1, clutch shaft bearing 43
Flange 431 coordinate on cylinder assembly 41, the wheel hub 432 of clutch shaft bearing 43 is set towards motor section 3.In some embodiments
In, as shown in fig. 6, the wheel hub 432 of clutch shaft bearing 43 only can be against on the end face of high-low pressure demarcation strip 2, specifically, in assembling
The end face of wheel hub 432 can be directly with high-low pressure demarcation strip 2 end face be in contact.In further embodiments, as shown in figure 5,
The wheel hub 432 of one bearing 43 coordinates in pilot hole 21, for the embodiment shown in Fig. 6, the wheel hub 432 of clutch shaft bearing 43
Lengthened, and extend into after the lengthening of wheel hub 432 in pilot hole 21, sealing effectiveness can be improved, it is ensured that the reliability of assembling.
Further, as shown in Figures 2 and 3, mounting groove 22 can be provided with high-low pressure demarcation strip 2, seal 5 coordinates in peace
In tankage 22.The moving range of seal 5 is limited by mounting groove 22, seal 5 can be avoided from high-low pressure demarcation strip 2 and first
Come off between bearing 43.
Wherein, as shown in figure 3, mounting groove 22 may be provided on the internal perisporium of pilot hole 21, and as shown in fig. 6, mounting groove 22
It can also be located on the end face towards the flange 431 of clutch shaft bearing 43 of high-low pressure demarcation strip 2.
When mounting groove 22 is located on the internal perisporium of pilot hole 21, as shown in figure 3, the both sides of mounting groove 22 can respectively with height
Two end surfaces of low pressure separation plate 2 are opened, and as shown in figure 5, the one of cylinder assembly 41 are only oriented towards in the both sides of mounting groove 22
Side is opened wide.
When high-low pressure demarcation strip 2 is provided with mounting groove 22, as shown in figure 3, the section of mounting groove 22 is formed as rectangle,
Again as shown in figure 5, the section of mounting groove 22 may be alternatively formed to triangle.
To sum up, to solve the problems, such as seal leakage between high-low pressure demarcation strip 2 and the wheel hub 432 of clutch shaft bearing 43, the present invention
Embodiment devises high-low pressure demarcation strip 2 and clutch shaft bearing 43 according to the stress of high-low pressure demarcation strip 2 and deformation displacement direction
Wheel hub 432 between flexible sealing.
It is understood that on chat matching relationship and peace between high-low pressure demarcation strip 2 and the wheel hub 432 of clutch shaft bearing 43
The structure of tankage 22 can form a variety of encapsulation schemes after reasonable combination, below with reference to the accompanying drawings describe three kinds of specific implementations therein
Example.
Reference picture 2 and a specific embodiment shown in Fig. 3, high-low pressure demarcation strip 2 are provided with pilot hole 21, pilot hole 21
Internal perisporium be provided with mounting groove 22, mounting groove 22 is annular groove, the both sides of mounting groove 22 respectively with high-low pressure demarcation strip 2 two
Individual end surfaces are opened, and the section of mounting groove 22 is formed as rectangle.Clutch shaft bearing 43 has flange 431 and wheel hub 432, clutch shaft bearing
43 wheel hub 432 is engaged in pilot hole 21, and is coordinated between the wheel hub 432 of pilot hole 21 and clutch shaft bearing 43 for gap, close
Sealing 5 is arranged in mounting groove 22.
Another specific embodiment shown in reference picture 5, high-low pressure demarcation strip 2 is provided with pilot hole 21, pilot hole 21
Internal perisporium is provided with mounting groove 22, and mounting groove 22 is annular groove, is opened wide towards the side of high pressure chest 131 in the both sides of mounting groove 22
(side of the flange 431 towards clutch shaft bearing of mounting groove 22 is opened wide in Fig. 5), the section of mounting groove 22 is formed as triangle.
Clutch shaft bearing 43 has is formed with step 433 on flange 431 and wheel hub 432, the wheel hub 432 of clutch shaft bearing 43, and wheel hub 432 is assembled
To pilot hole 21, and the step 433 of wheel hub 432 coordinates on the end face of high-low pressure demarcation strip 2 with block mounting groove 22, sealing
Part 5 is arranged in mounting groove 22.
Another specific embodiment shown in reference picture 6, high-low pressure demarcation strip 2 is provided with pilot hole 21, and high-low pressure separates
End face (the i.e. side table of the flange 431 towards clutch shaft bearing of high-low pressure demarcation strip 2 in Fig. 6 towards high pressure chest 131 of plate 2
Face) mounting groove 22 is provided with, mounting groove 22 is annular groove, and the internal perisporium of mounting groove 22 is spaced apart with the internal perisporium of pilot hole 21,
The section of mounting groove 22 is formed as rectangle.The end face of the wheel hub 432 of clutch shaft bearing 43, which stops, to be against on the end face of high-low pressure demarcation strip 2
With block mounting groove 22, seal 5 is arranged in mounting groove 22.
Certainly, in the embodiment of the present invention, the structure of seal 5 and the installation site of seal 5 are not limited to above-described embodiment
Described situation.
For example in above three embodiment, seal 5 is O-ring, but in other embodiments of the present invention, seal
5 can be also V-shaped seal ring, U-shaped circle, square type sealing ring, y-type seal ring etc..
, also can will be close in addition, seal 5 is annular in above-described embodiment, but in the other embodiment of the present invention
Sealing 5 sets spirality or other shapes, as long as can realize sealing between high-low pressure demarcation strip 2 and clutch shaft bearing 43 i.e.
Can.
A sealing ring is only provided with embodiment up between clutch shaft bearing 43 and high-low pressure demarcation strip 2, but
It is that in other embodiments of the invention, multiple sealing rings also can be set between clutch shaft bearing 43 and high-low pressure demarcation strip 2.
In addition, in other embodiments of the present invention, mounting groove 22 can also be arranged on clutch shaft bearing 43, compressor dress
Rear seal 5 is prepared still to be folded between high-low pressure demarcation strip 2 and clutch shaft bearing 43.But it is due on high-low pressure demarcation strip 2
Processing mounting groove 22 is relatively easy to, therefore preferably processes mounting groove 22 on high-low pressure demarcation strip 2 in the embodiment of the present invention.
The rotary compressor 100 of a specific embodiment of the invention is described below with reference to Fig. 1-Fig. 4.
Rotary compressor 100 according to embodiments of the present invention, as shown in figure 1, including：Housing 1, high-low pressure demarcation strip 2,
Motor section 3 and pump housing portion 4.
Accommodating chamber 13 is limited in housing 1, high-low pressure demarcation strip 2 is located in housing 1 accommodating chamber 13 being separated into high pressure
Chamber 131 and low pressure chamber 132, high-low pressure demarcation strip 2 are provided with pilot hole 21.Motor section 3 is located in low pressure chamber 132, and motor section 3 is wrapped
Include stator 31 and rotor 32.Pump housing portion 4 is located in high pressure chest 131, and pump housing portion 4 includes：Cylinder assembly 41, bent axle 42, first axle
43 and second bearing 44 are held, clutch shaft bearing 43 and second bearing 44 coordinate the opposite end in cylinder assembly 41, and bent axle 42 runs through
Cylinder assembly 41, and bent axle 42 extend into be fixedly connected with rotor 32 in low pressure chamber 132 by pilot hole 21, wherein, first
Bearing 43 is set adjacent to high-low pressure demarcation strip 2, and the O-shaped of bent axle 42 is provided around between clutch shaft bearing 43 and high-low pressure demarcation strip 2
Circle, the compression direction of O-ring and the rotation axis L of rotor 32 are perpendicular, and the decrement of O-ring is 10%~30%, O-shaped
The line footpath of circle is 1.0mm~3.5mm, and the refrigerant that rotary compressor 100 is used is R744.
The compressor of the embodiment is that high-low pressure separates CO2 rotary compressor structures, can meet aircraft, tank, steamer, big
The field such as bar car, family-sized car, space shuttle, Teat pump boiler, freezing and refrigeration use requirement, involved compressor is using high
Low pressure compartmentalized design, horizontal can be placed, automatically controlled and compressor integrated design；Utilize the O-ring pair for setting decrement and line footpath
Sealed between clutch shaft bearing 43 and high-low pressure demarcation strip 2, product possesses refrigerating capacity greatly, lightweight, small volume, reliability
High the advantages of.
In the description of the invention, it is to be understood that term " " center ", " on ", " under ", " vertical ", " level ",
The orientation or position relationship of the instruction such as " top ", " bottom ", " interior ", " outer ", " axial direction ", " radial direction ", " circumference " are based on shown in accompanying drawing
Orientation or position relationship, be for only for ease of the description present invention and simplify description, rather than indicate or imply signified device
Or element there must be specific orientation, with specific azimuth configuration and operation, therefore it is not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In the description of the invention, unless otherwise indicated, " multiple " are meant that two
Individual or two or more.
In the description of the invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ",
" fixation " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be machinery
Connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, can be two elements
Internal connection or the interaction relationship of two elements.For the ordinary skill in the art, can be with concrete condition
Understand the concrete meaning of above-mentioned term in the present invention.
In the description of this specification, the description of reference term " embodiment ", " example " etc. mean to combine the embodiment or
Specific features, structure, material or the feature of example description are contained at least one embodiment of the present invention or example.At this
In specification, identical embodiment or example are not necessarily referring to the schematic representation of above-mentioned term.Moreover, description is specific
Feature, structure, material or feature 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：
Accommodating chamber is limited in housing, the housing；
High-low pressure demarcation strip, the high-low pressure demarcation strip is located in the housing accommodating chamber being separated into high pressure chest and low
Chamber is pressed, the high-low pressure demarcation strip is provided with pilot hole；
Motor section, the motor section is located in the low pressure chamber, and the motor section includes stator and rotor；
Pump housing portion, the pump housing portion is located in the high pressure chest, and the pump housing portion includes：Cylinder assembly, bent axle, clutch shaft bearing and
Second bearing, the clutch shaft bearing and the second bearing coordinate the opposite end in the cylinder assembly, and the bent axle runs through
The cylinder assembly, and the bent axle extend into be connected with the rotor in the low pressure chamber by the pilot hole, its
In, the clutch shaft bearing is set adjacent to the high-low pressure demarcation strip, is set between the clutch shaft bearing and the high-low pressure demarcation strip
There is seal.
2. rotary compressor according to claim 1, it is characterised in that the seal is O-ring, the O-ring
Compression direction and the bent axle rotation axis it is perpendicular.
3. rotary compressor according to claim 2, it is characterised in that the decrement of the O-ring is 10%~
30%.
4. rotary compressor according to claim 2, it is characterised in that the line footpath of the O-ring be 1.0mm~
3.5mm。
5. rotary compressor according to claim 1, it is characterised in that the wheel hub of the clutch shaft bearing stop be against it is described
On the end face of high-low pressure demarcation strip；Or, the wheel hub of the clutch shaft bearing coordinates in the pilot hole.
6. rotary compressor according to claim 1, it is characterised in that the high-low pressure demarcation strip is provided with installation
Groove, the seal coordinates in the mounting groove.
7. rotary compressor according to claim 6, it is characterised in that the mounting groove is located at the interior of the pilot hole
On perisporium；Or, the mounting groove is located on the end face of the direction cylinder assembly of the high-low pressure demarcation strip.
8. rotary compressor according to claim 6, it is characterised in that when the mounting groove is located at the pilot hole
When on internal perisporium, two end surfaces of the both sides of the mounting groove respectively with the high-low pressure demarcation strip are opened, or the peace
The side that the cylinder assembly is only oriented towards in the both sides of tankage is opened wide.
9. the rotary compressor according to any one of claim 1-8, it is characterised in that the rotary compressor is adopted
Refrigerant is R744.
10. a kind of rotary compressor, it is characterised in that including：
Accommodating chamber is limited in housing, the housing；
High-low pressure demarcation strip, the high-low pressure demarcation strip is located in the housing accommodating chamber being separated into high pressure chest and low
Chamber is pressed, the high-low pressure demarcation strip is provided with pilot hole；
Motor section, the motor section is located in the low pressure chamber, and the motor section includes stator and rotor；
Pump housing portion, the pump housing portion is located in the high pressure chest, and the pump housing portion includes：Cylinder assembly, bent axle, clutch shaft bearing and
Second bearing, the clutch shaft bearing and the second bearing coordinate the opposite end in the cylinder assembly, and the bent axle runs through
The cylinder assembly, and the bent axle extend into be fixedly connected with the rotor in the low pressure chamber by the pilot hole,
Wherein, the clutch shaft bearing is set adjacent to the high-low pressure demarcation strip, between the clutch shaft bearing and the high-low pressure demarcation strip
The O-ring of the bent axle is provided around, the decrement of the O-ring is 10%~30%, the line footpath of the O-ring is 1.0mm
~3.5mm, the refrigerant that the rotary compressor is used is R744.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710055064.5A CN107061283A (en) | 2017-01-24 | 2017-01-24 | Rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710055064.5A CN107061283A (en) | 2017-01-24 | 2017-01-24 | Rotary compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107061283A true CN107061283A (en) | 2017-08-18 |
Family
ID=59598074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710055064.5A Pending CN107061283A (en) | 2017-01-24 | 2017-01-24 | Rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107061283A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985387A (en) * | 2019-10-28 | 2020-04-10 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and air conditioner with same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000054975A (en) * | 1998-08-07 | 2000-02-22 | Daikin Ind Ltd | Two-stage compressor |
| US6637216B1 (en) * | 2003-01-22 | 2003-10-28 | Bristol Compressors, Inc. | Compressor with internal accumulator for use in split compressor |
| CN101004173A (en) * | 2006-01-18 | 2007-07-25 | 上海日立电器有限公司 | Rolling piston type compressor with no reservoir |
| CN205025768U (en) * | 2015-09-25 | 2016-02-10 | 珠海凌达压缩机有限公司 | Compressor and indirect heating equipment |
| CN206429400U (en) * | 2017-01-24 | 2017-08-22 | 广东美芝制冷设备有限公司 | Rotary compressor |
-
2017
- 2017-01-24 CN CN201710055064.5A patent/CN107061283A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000054975A (en) * | 1998-08-07 | 2000-02-22 | Daikin Ind Ltd | Two-stage compressor |
| US6637216B1 (en) * | 2003-01-22 | 2003-10-28 | Bristol Compressors, Inc. | Compressor with internal accumulator for use in split compressor |
| CN101004173A (en) * | 2006-01-18 | 2007-07-25 | 上海日立电器有限公司 | Rolling piston type compressor with no reservoir |
| CN205025768U (en) * | 2015-09-25 | 2016-02-10 | 珠海凌达压缩机有限公司 | Compressor and indirect heating equipment |
| CN206429400U (en) * | 2017-01-24 | 2017-08-22 | 广东美芝制冷设备有限公司 | Rotary compressor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985387A (en) * | 2019-10-28 | 2020-04-10 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and air conditioner with same |
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Application publication date: 20170818 |