CN104963864B - Multi-cylinder rotary air compressor and the refrigerating circulatory device with it - Google Patents
Multi-cylinder rotary air compressor and the refrigerating circulatory device with it Download PDFInfo
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- CN104963864B CN104963864B CN201510408486.7A CN201510408486A CN104963864B CN 104963864 B CN104963864 B CN 104963864B CN 201510408486 A CN201510408486 A CN 201510408486A CN 104963864 B CN104963864 B CN 104963864B
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Abstract
The invention discloses a kind of multi-cylinder rotary air compressor and the refrigerating circulatory device with it.Multi-cylinder rotary air compressor includes motor part, multiple compression mechanical parts and two bearings, each compression mechanical part includes a cylinder, bent axle, roller and slide plate, includes applying the rearward end of slide plate elastic force so that the spring that the leading section of slide plate is contacted with the perisporium of roller located at the slide plate back pressure chamber of first cylinder；The Stress control pipe arrangement that the slide plate back pressure chamber of each cylinder in addition to first cylinder is connected with switching gases at high pressure with low-pressure gas to be supplied, to control whether each cylinder chamber is effectively compressed.Multi-cylinder rotary air compressor according to embodiments of the present invention, can be effectively compressed the number of the compression mechanical part of effect to realize large-scale Load Regulation by rotating speed and change simultaneously.
Description
Technical field
The present invention relates to refrigerating field, more particularly, to a kind of multi-cylinder rotary air compressor and the kind of refrigeration cycle with it dress
Put.
Background technology
In the refrigerating circulatory device of single compressor, refrigerant circulation is only adjusted by rotating speed control, generally can not
The need for adapting to the violent conversion of load, thus multiple compressors are used in parallel in same cooling cycle system, can be significantly
The load capacity scope of cooling cycle system is widened, but in multiple compressors refrigerating circulatory device in parallel, each compression
Pipeline, condenser and evaporator that the refrigerator oil of machine and the fluid-mixing of refrigerant together can enter in refrigerating circulatory device, and
The mobility status of the fluid-mixing and refrigerant of refrigerator oil and refrigerant is not consistent, therefore it is difficult to ensure that returns to each compressor
Oil mass is consistent with the oil mass that each compressor is discharged, and each compressor in operating occurs that oil return is uneven, may cause pressure
Contracting machine oil face declines, so as to damage compressor.
In order to ensure that each compressor oil return is uniform, it usually needs increase oil eliminator, electromagnetism in refrigerating circulatory device
Valve and oil mass balanced loop etc., but constitute and control more complicated, cost can be significantly increased.
The content of the invention
It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.
Therefore, the present invention proposes a kind of multi-cylinder rotary air compressor, effect can be effectively compressed by rotating speed and change simultaneously
The number of compression mechanical part realize large-scale Load Regulation.
The present invention also proposes a kind of refrigerating circulatory device with above-mentioned multi-cylinder rotary air compressor.
Multi-cylinder rotary air compressor according to embodiments of the present invention, it has housed what is connected via bent axle in seal casinghousing
Motor part, multiple compression mechanical parts and two bearings, each compression mechanical part include a cylinder, bent axle, roller and
Slide plate, the inside diameter of each cylinder is formed with the cylinder chamber imported for low-pressure gas, and provided with via vane slot and this
The slide plate back pressure chamber of a little cylinder chamber's connections；Each bent axle, which has, to be housed in the cylinder chamber of the corresponding cylinder
Eccentric part；Each roller is fitted together to the eccentric part of the corresponding bent axle, with the rotation of the bent axle corresponding
The cylinder chamber in eccentric rotary；Each slide plate is housed in the corresponding vane slot in which can be freely shifted in the horizontal direction, and
The cylinder chamber is divided into two rooms in the state of being abutted in its leading section with the roller perisporium；Multiple cylinders are in
Space bar is set；Described two bearings are respectively arranged on the end face of the multiple cylinder, cover described together with the central dividing plate
Cylinder chamber；Include applying the rearward end of the slide plate elastic force so that described located at the slide plate back pressure chamber of first cylinder
The spring that the leading section of slide plate is contacted with the perisporium of the roller；The slide plate back of the body of each cylinder in addition to first cylinder
The Stress control pipe arrangement that pressure chamber is connected with switching gases at high pressure with low-pressure gas to be supplied, to control each cylinder chamber
Whether it is effectively compressed.
Multi-cylinder rotary air compressor according to embodiments of the present invention, by changing the number for the cylinder being effectively compressed,
Refrigerant circulation in a seal casinghousing can be changed, the change brought with existing frequency-changeable compressor only rotation speed change
Change amount, excursion is wider, simultaneously because multi-cylinder rotary air compressor R includes multiple cylinder chamber, and multiple cylinder chamber are controllable
Whether it is effectively compressed, therefore in the refrigerating circulatory device of single compressor, rotating speed and change effectively pressure can be passed through simultaneously
The number of the compression mechanical part of contracting effect realizes large-scale Load Regulation.
In some embodiments of the invention, the bent axle of the multiple compression mechanical part can be combined, separate.
Alternatively, between two bent axles can be combined, separated by groove with male cooperation to be fixedly connected.
Still optionally further, the groove and the raised cross section are respectively formed as " ten " shape.
In a particular embodiment of the present invention, the compression mechanical part is even number and is divided into multipair, is compressed described in each pair
Mechanism part shares a bent axle.
Preferably, the connecting portion of two bent axles can be combined, separated has gap.
Refrigerating circulatory device according to embodiments of the present invention, including multi cylinder according to the above embodiment of the present invention rotation pressure
Contracting machine.
Brief description of the drawings
Fig. 1 is the sectional view of the multi-cylinder rotary air compressor of the embodiment of the present invention；
Fig. 2 is the bent axle connecting portion schematic diagram of the embodiment of the present invention；
Fig. 3 is the compressor efficiency and rotation speed change curve of the present invention, the refrigerant circulation spy of effective compression mechanical part
Property.
Reference：
R multi-cylinder rotary air compressors, 2 seal casinghousings, 3 blast pipes, 4 condensers, 5 expansions
Valve, 6 evaporators, 7 air intake ducts, 21 stators, 22 rotors, 23a~23b bent axles, 24a~
24d compression mechanical parts, 25a~25d cylinders, 26a~26d rollers, 27a~27d slide plates, 28a
Bearing, 28f bearings, 28b~28e central dividing plates, 29 oil pump mechanisms, 30a~30d slide plates back pressure chamber,
31a~31d pressure switching pipe, 32a~32d pressure switching valves, 34 springs.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings.Below with reference to
The embodiment of accompanying drawing description is exemplary, it is intended to for explaining the present invention, and be 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, 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 at least one this feature.In the description of the invention, " multiple " are meant that at least two, such as two, three
It is individual etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect or can communicate each other；Can be joined directly together, can also be indirectly connected to by intermediary, can be with
It is connection or the interaction relationship of two elements of two element internals, unless otherwise clear and definite restriction.For this area
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
Multi-cylinder rotary air compressor R according to embodiments of the present invention, wherein many gas are described in detail below with reference to Fig. 1-Fig. 3
Cylinder rotary compressor R can be applied in refrigerating circulatory device, and above-mentioned refrigerating circulatory device can be empty for air conditioner, vehicle-mounted refrigeration
Tune etc. needs the device for freezing or heating.
As shown in figure 1, multi-cylinder rotary air compressor R according to embodiments of the present invention, it has housed warp in seal casinghousing 2
Motor part, multiple compression mechanical part 24a-24d and two bearings 28a, the 28f connected by bent axle, each compression mechanical part bag
A cylinder, bent axle, roller and slide plate are included, the inside diameter of each cylinder is formed with the cylinder chamber imported for low-pressure gas, and
Provided with the slide plate back pressure chamber connected via vane slot with these cylinder chamber；Each bent axle has the gas for being housed in corresponding cylinder
Eccentric part in cylinder chamber.
Each roller is fitted together to the eccentric part of corresponding bent axle, eccentric in corresponding cylinder chamber with the rotation of bent axle
Rotation.
Each slide plate is housed in corresponding vane slot in which can be freely shifted in the horizontal direction, and is abutted in its leading section with roller perisporium
In the state of cylinder chamber is divided into two rooms.
Multiple cylinder 25a~25d are set across central dividing plate.Two bearings 28a, 28f be respectively arranged on multiple cylinder 25a~
25d end face, covers cylinder chamber together with central dividing plate.
Include applying elastic force to slide plate 27a rearward end so that sliding located at first cylinder 25a slide plate back pressure chamber 30a
The spring 34 that piece 27a leading section is contacted with roller 26a perisporium.
The slide plate back pressure chamber 30b-30d of each cylinder 25b-25d in addition to first cylinder 25a is connected with switching gases at high pressure
The Stress control pipe arrangement supplied with low-pressure gas, to control whether each cylinder chamber is effectively compressed.
In other words, multi-cylinder rotary air compressor R according to embodiments of the present invention, including seal casinghousing 2, motor part and many
Individual compression mechanical part 24a~24d.Wherein motor part and multiple compression mechanical parts 24a~24d is respectively provided in seal casinghousing 2,
And motor part is connected with multiple compression mechanical part 24a~24d by bent axle.Motor section includes stator 21 and rotor 22.
Each compression mechanical part includes a cylinder, bent axle, roller and slide plate.Length of multiple cylinder 25a~25d in bent axle
Spend arrangement setting successively on direction.Each cylinder has cylinder chamber and the slide plate back pressure chamber connected by vane slot with cylinder chamber.
Central dividing plate is clamped between per two adjacent cylinders, bearing 28a is placed on first cylinder 25a, and bearing 28f is placed on
On last cylinder 25d, bearing 28a, bearing 28f and multiple central dividing plates 28b~28e coordinate to be spaced apart multiple cylinders
Room.
The upper end of first compression mechanical part 24a bent axle is connected to drive rotation, multiple pressures by rotor 22 with rotor 22
The bent axle of contracting mechanism part is connected.Each bent axle includes eccentric part, and multiple eccentric parts are accommodated in multiple cylinder chamber respectively.Each gas
Also it is accommodated with roller in cylinder chamber, each roller envelope is on corresponding eccentric part to drive eccentric rotary by eccentric part.Each gas
Reciprocating slide plate is provided with the eccentric grove of cylinder, the leading section of each slide plate only can be against on the periphery wall of corresponding roller
So that corresponding cylinder chamber is divided into two rooms.
Spring 34, first cylinder 25a of the spring 34 pair cunning are provided with first cylinder 25a slide plate back pressure chamber 30a
The rearward end of slide plate 27a in film trap applies elastic force so that slide plate 27a leading section is only against roller 26a periphery all the time
On wall.
Remove first cylinder 25a remaining cylinders 25b-25d slide plate back pressure chamber 30b-30d respectively in environment under low pressure and
Switch between hyperbaric environment, when the environment in the slide plate back pressure chamber of one of cylinder is hyperbaric environment, corresponding cylinder
There is pressure differential between the rearward end of slide plate and leading section, in the presence of pressure differential, the leading section of corresponding slide plate, which is stopped, to be against
So that cylinder chamber is divided into two rooms on the periphery wall of corresponding roller, so that the cylinder can be compressed work.
Therefore, carried on the back by the slide plate in hyperbaric environment for the remaining cylinders 25b-25d for controlling to remove first cylinder 25a
The number of pressure chamber, can control the number of cylinder being compressed, so that realize the decrement of multi-cylindrical rotary compressor
Adjustment.
Multi-cylinder rotary air compressor R according to embodiments of the present invention, by changing the number for the cylinder being effectively compressed,
Refrigerant circulation in a seal casinghousing 2 can be changed, and be brought with existing frequency-changeable compressor only rotation speed change
Variable quantity, excursion is wider, simultaneously because multi-cylinder rotary air compressor R includes multiple cylinder chamber, and multiple cylinder chamber are controllable
Whether system is effectively compressed, therefore in the refrigerating circulatory device of single compressor, can be simultaneously effective by rotating speed and change
The number of the compression mechanical part of compression realizes large-scale Load Regulation.
In some embodiments of the invention, multiple compression mechanical part 24a~24d bent axle can be combined, separate.
That is, multiple compression mechanical part 24a~24d bent axle is removably, consequently facilitating multi-cylinder rotary air compressor R processing
Shaping, while meeting requirements of the multi-cylinder rotary air compressor R to the fit-up gap between cylinder, bent axle and roller.In the present invention
Specific example in, compression mechanical part is even number and to be divided into multipair, and each pair compression mechanical part shares a bent axle, that is,
Say, the bent axle of each pair compression mechanical part is non-removable.For example as shown in figure 1, compression mechanical part is four, first compression
Mechanism part 24a and second compression mechanical part 24b share a bent axle, the 3rd compression mechanical part 24c and the 4th compressor
Structure portion 24d shares a bent axle.
Alternatively, as shown in Fig. 2 can be combined, between two bent axles separating by groove and male cooperation to consolidate
Fixed connection.Consequently facilitating the assembling of bent axle.Still optionally further, groove and raised cross section are respectively formed as " ten " shape.
The bonding strength between bent axle so as to improve connection.
Preferably, there is gap between the connecting portion of two bent axles can be combined, separated.So as to absorb axle center
Skew, can smooth transmission rotation torque.
Refrigerating circulatory device according to embodiments of the present invention, including multi cylinder according to the above embodiment of the present invention rotation pressure
Contracting machine R.
The multi-cylinder rotary air compressor R according to the specific embodiment of the invention is described in detail below with reference to Fig. 1-Fig. 3.
Described referring to Fig. 1 multi-cylinder rotary air compressor R according to embodiments of the present invention schematic cross-section structure chart and including
The refrigeration cycle structure schematic diagram of multi-cylinder rotary air compressor R refrigerating circulatory device.
Multi-cylinder rotary air compressor R according to embodiments of the present invention：Top in seal casinghousing 2 is provided with by stator 21 with turning
Bottom in the motor part that son 22 is constituted, seal casinghousing 2 is provided with compression mechanical part, and motor part passes through song with compression mechanical part
Axle 23a and bent axle 23b connections.
Multi-cylinder rotary air compressor R according to embodiments of the present invention is pressed from blast pipe 3, condenser 4, expansion valve 5, evaporator
6th, the composition refrigerating circulatory device that is linked in sequence of air intake duct 7, the big load capacity range of correspondence cooling cycle system.
Multi-cylinder rotary air compressor R according to embodiments of the present invention has 4 compression mechanical part 24a~24d, including：It is multiple
Cylinder 25a~25d, the plurality of cylinder 25a~25d are set across central dividing plate 28b~28e, and are formed in respective inside diameter
There is the cylinder chamber imported for low-pressure gas, and provided with the slide plate back pressure chamber connected via vane slot with these cylinder chamber；Bearing
28a, 28f, the bearing 28a, 28f are located at the plurality of cylinder 25a~25d end face, are covered together with central dividing plate 28b~28e
Cylinder chamber；Bent axle 23a, 23b, the bent axle have the eccentric part being housed in the respective cylinder chamber of multiple cylinders；Roller
26a~26d, the roller is chimeric with bent axle 23a and bent axle 23b eccentric part, with the bent axle 23a and bent axle 23b rotation
And eccentric rotary is distinguished in the cylinder chamber；Slide plate 27a~27d, what slide plate 27a~27d can be freely shifted in the horizontal direction is housed in
In the vane slot, and the cylinder chamber is divided into two in the state of being abutted in its leading section with roller 26a~26d perisporiums
Room；Include applying slide plate 27a rearward end elastic force so that before slide plate 27a located at the slide plate back pressure chamber of first cylinder chamber
There is oil pump mechanism 29 spring 34 that end is contacted with roller 26a perisporium, the lower bearing 28f of compression mechanical part bottom to insertion
Bent axle 23b hole supplies the refrigerator oil of lubrication.
Cylinder 25a slide plate back pressure chamber 30a in seal casinghousing 2 with connecting.Cylinder 25b~25d slide plate back pressure chamber 30b~
30d switches gases at high pressure with low-pressure gas to be supplied by pressure switching pipe 31b~31d from compressor R external connections respectively
The pressure answered.
Pressure switching pipe 31b branches, be connected with pressure switching valve 32a, and meanwhile connected with pressure switching valve 32b
Pipeline 33a connections.Pressure switching pipe 31c branches, while being connected with pressure switching valve 32b, while with connecting with pressure switching valve 32c
Logical pipeline 33b connections.The pressure switching pipe 31d branches, while being connected with pressure switching valve 32c, while with being cut with pressure
Change the pipeline 33c connections of valve 32d connections.
Pressure switching valve 32a is connected with pipeline 33a and with the pipeline that the pressure duct of kind of refrigeration cycle is connected, and is managed during opening
Road 33a is high pressure conditions.Pressure switching valve 32d is connected with pipeline 33c and with the low pressure line of kind of refrigeration cycle, pipeline during opening
33c is low-pressure state.
Multi-cylinder rotary air compressor R according to embodiments of the present invention bent axle 23a and bent axle 23b connection is described referring to Fig. 2
Portion's schematic diagram.The lug boss 40 of cross shape is formd in bent axle 23b upper end, bent axle 23a lower end is formd and lug boss
40 mutually embedding recesses 41, the size of recess 41 is more than the size of lug boss 40, it is ensured that the central dividing plate 28c of compression mechanical part and compression
Gap more than the central dividing plate 28d of mechanism part maximum build-up tolerance.
Referring to Fig. 3 describe according to the present invention compressor efficiency and rotation speed change curve, effective compression mechanical part it is cold
Matchmaker circulates flow characteristic.Minimum refrigerant circulation first, closing presure switching valve 32a, open pressure switching valve 32b, 32c,
32d.If compressor is rotated with minimum speed r1, compression mechanical part 24a internal causes have the resilient force of spring 34, make slide plate 27a
Leading section contacted with roller 26a perisporium, compression mechanical part 24a cylinder chamber is normally carried out being effectively compressed.Compression mechanical part
24a is effectively compressed, then the pressure in closed shell 2 rises, and is declined by the pressure of the side of suction line 7.Because of slide plate back pressure chamber
30a is that then slide plate back pressure chamber 30a pressure becomes the pressure (hereinafter referred to as high pressure) in closed shell with being connected in closed shell 2,
Slide plate 27a leading section and roller 26a perisporium are tight contacted between.Closing presure switching valve 32a, because pressure switching valve 32b, 32c,
32d is opened, and pipeline 33a, 33b, 33c become the pressure (hereinafter referred to as low pressure) of the side of suction line 7.Slide plate back pressure chamber 30b, 30c,
30d is low pressure, and the radial load of slide plate 27b, 27c, 27d along vane slot is zero, is accommodated in vane slot.Because cylinder 25b, 25c,
25d is not divided into compression unit and sucting, will be without compression work.Therefore as shown in Figure 3, only compression mechanical part 24a's
Cylinder 25a is operated, and the state of the refrigerant circulation Qr1 under being operated by r1rps is operated.
When refrigerant circulation is from Qr1 to Qr2, in the state of above-mentioned pressure switching valve, by the way that rotating speed is promoted into r2
To ensure refrigerant circulation.When refrigerant circulation is Qr2, closing presure switching valve 32b, open pressure switching valve 32a, 32c,
32d, compressor rotary speed is set to r3.By opening pressure switching valve 32a, by pipeline 33a, slide plate back pressure chamber 30b is changed into high pressure,
Slide plate 27b leading section and roller 26b perisporium are tight contacted between, and compression mechanical part 24b cylinder chamber is normally carried out being effectively compressed.
Because pressure switching valve 32b is closed, pipeline 33b, 33c and slide plate back pressure chamber 30c, 30d maintenance low pressure, compression mechanical part 24c,
24d cylinder chamber will be without compression work.Therefore become compression mechanical part 24a, 24b cylinder 25a, 25b operating, therefore press
Shown in Fig. 3, the state of the refrigerant circulation Qr2 under the r3rps rotations of compression mechanical part 24a, 24b cylinder 25a, 25b operating
Operating.
When refrigerant circulation is from Qr2 to Qr3, in the state of above-mentioned pressure switching valve, by by rotating speed be promoted to r4 come
Ensure refrigerant circulation.When refrigerant circulation becomes Qr3, then closing presure switching valve 32c, open pressure switching valve 32a, 32b,
32d, r5 is set to by compressor rotary speed.By opening pressure switching valve 32a, 32b, slide plate back pressure chamber 30b, 30c pass through pipeline
33a, 33b become high pressure, and slide plate 27b, 27c leading section and roller 26b, 26c perisporium are tight contacted between, compression mechanical part 24b,
24c cylinder chamber is normally carried out being effectively compressed.Because pressure switching valve 32c is closed, pipeline 33c and slide plate back pressure chamber 30d are maintained
Low pressure, compression mechanical part 24d cylinder chamber will be without compression work.Therefore compression mechanical part 24a~24c cylinder is become
25a~25c is operated, therefore as shown in Figure 3, it is cold under the r5rps rotations of compression mechanical part 24a~c cylinder 25a~c operatings
Matchmaker's internal circulating load Qr3 state operating.
It is true by the way that rotating speed is promoted into r6 in the state of above-mentioned pressure switching valve when refrigerant circulation is from Qr3 to Qr4
Protect refrigerant circulation.When refrigerant circulation becomes Qr4, then closing presure switching valve 32d, open pressure switching valve 32a, 32b,
32c, compressor rotary speed is set to r7.Because of pressure switching valve 32a, 32b, 32c is opened, and pressure switching valve 32d is closed, and passes through pipeline
33a, 33b, 33c, slide plate back pressure chamber 30b, 30c, 30d are changed into high pressure, slide plate 27b~27d leading section and roller 26b~26d
Perisporium tight contact between, the cylinder chamber that full compression mechanism part 24a~24d can be achieved is normally carried out being effectively compressed.Therefore pressure is become
Contracting mechanism part 24a~24d cylinder 25a~25d operatings, therefore as shown in Figure 3, compression mechanical part 24a~24d cylinder 25a
The state operating of refrigerant circulation qr4 under the r8rps rotations of~25d operatings.
When refrigerant circulation is from Qr4 to maximum refrigerant circulation Qr5, in the state of above-mentioned pressure switching valve, by inciting somebody to action
Rotating speed, which is promoted to maximum (top) speed r8, ensures refrigerant circulation.
Multi-cylinder rotary air compressor according to embodiments of the present invention, by changing the compression mechanical part being effectively compressed,
Refrigerant circulation in a seal casinghousing can be changed from Qr1 to Qr5, and more common frequency-changeable compressor only rotation speed change is brought
Variable quantity, excursion is wider.
On common frequency-changeable compressor, as shown in figure 3, efficiency can be changed by compressor rotary speed change, it is ensured that from 30rps to
Stability and high efficiency in 90rps is interval, but when compressor rotary speed is less than 20rps or during higher than 100rps, compressor efficiency is obvious
Decline.Multi-cylinder rotary air compressor according to embodiments of the present invention, the situation of nearly all refrigerant circulation change can be realized
Rotation speed operation between from 30rps to 90rps, can realize high-efficiency operation during actual use.
Cylinder, bent axle, the assembling of roller in rotary compressor, to requiring that gap management is strict, it is impossible to by multiple pressures
Contracting mechanism part is assembled by a bent axle.Multi-cylinder rotary air compressor according to embodiments of the present invention, by existing 2 pressures
Contracting mechanism part is assembled by 1 bent axle, as shown in Fig. 2 the connecting portion of bent axle sets gap, absorbs the skew in axle center, can
Smooth transmission rotation torque.
Multi-cylinder rotary air compressor according to embodiments of the present invention is the rotary compressor for having 4 compression mechanical parts, by same
The composition of sample, can use more compression mechanical parts.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features are directly contacted, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or the spy that the embodiment or example are described
Point is contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the not be the same as Example or the feature of example and non-be the same as Example or example described in this specification
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (5)
1. a kind of multi-cylinder rotary air compressor, it has housed the motor part connected via bent axle, multiple pressures in seal casinghousing
Contracting mechanism part and two bearings, it is characterised in that each compression mechanical part includes a cylinder, bent axle, roller and slide plate,
The inside diameter of each cylinder is formed with the cylinder chamber imported for low-pressure gas, and provided with via vane slot and these cylinders
The slide plate back pressure chamber of room connection；Each bent axle has the bias being housed in the cylinder chamber of the corresponding cylinder
Portion；
Each roller is fitted together to the eccentric part of the corresponding bent axle, with the rotation of the bent axle corresponding described
Eccentric rotary in cylinder chamber；
Each slide plate is housed in the corresponding vane slot in which can be freely shifted in the horizontal direction, and in its leading section and the roller
The cylinder chamber is divided into two rooms by perisporium in the state of abutting；
Multiple cylinders are set across central dividing plate；Described two bearings are respectively arranged on the end face of the multiple cylinder, with institute
State central dividing plate and cover the cylinder chamber together；
Include applying the rearward end of the slide plate elastic force so that the cunning located at the slide plate back pressure chamber of first cylinder
The spring that the leading section of piece is contacted with the perisporium of the roller；
The slide plate back pressure chamber of each cylinder in addition to first cylinder is connected with switching gases at high pressure to be come with low-pressure gas
The Stress control pipe arrangement supplied, to control whether each cylinder chamber is effectively compressed, in the slide plate back pressure chamber
There is pressure differential between the rearward end of the corresponding slide plate and leading section during supply gases at high pressure, under pressure differential effect, institute
Stop and being against on the roller in the leading section for stating slide plate；
The bent axle of the multiple compression mechanical part can be combined, separate；The compression mechanical part is even number and is divided into
Multipair, compression mechanical part described in each pair shares a bent axle.
2. lead between multi-cylinder rotary air compressor according to claim 1, two bent axles can be combined, separated
Groove is crossed with male cooperation to be fixedly connected.
3. multi-cylinder rotary air compressor according to claim 2, it is characterised in that the groove and described raised transversal
Face is respectively formed as " ten " shape.
4. multi-cylinder rotary air compressor according to claim 1, it is characterised in that two institutes can be combined, separated
Stating the connecting portion of bent axle has gap.
5. a kind of refrigerating circulatory device, it is characterised in that including the multi cylinder rotation according to any one of claim 1-4
Compressor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510408486.7A CN104963864B (en) | 2015-07-13 | 2015-07-13 | Multi-cylinder rotary air compressor and the refrigerating circulatory device with it |
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| CN201510408486.7A CN104963864B (en) | 2015-07-13 | 2015-07-13 | Multi-cylinder rotary air compressor and the refrigerating circulatory device with it |
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| CN104963864B true CN104963864B (en) | 2017-10-27 |
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|---|---|---|---|---|
| WO2017008229A1 (en) * | 2015-07-13 | 2017-01-19 | 广东美芝制冷设备有限公司 | Multi-cylinder rotary compressor and refrigeration circulation apparatus having same |
| CN106704188B (en) * | 2017-02-24 | 2018-09-11 | 广东美芝制冷设备有限公司 | Rotary compressor and refrigeration system with it |
| JP6922077B2 (en) | 2018-03-27 | 2021-08-18 | 東芝キヤリア株式会社 | Rotary compressor and refrigeration cycle equipment |
| CN108591537B (en) * | 2018-06-19 | 2023-06-27 | 广东美芝精密制造有限公司 | Fluid pressure switching valve, variable capacity rotary compressor, and refrigeration cycle device |
| CN108799115A (en) * | 2018-08-03 | 2018-11-13 | 天津商业大学 | Become four cylinder Two-stage Compression compressor with rolling rotor of discharge capacity |
| CN110821836B (en) * | 2019-10-24 | 2023-11-24 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor variable-volume structure, compressor, air conditioner and control method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010156499A (en) * | 2008-12-26 | 2010-07-15 | Daikin Ind Ltd | Refrigerating device |
| CN103573625B (en) * | 2012-07-30 | 2016-01-27 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotary compressor with variable volume |
| CN103727034B (en) * | 2012-10-12 | 2016-04-06 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor |
| CN203906282U (en) * | 2014-04-10 | 2014-10-29 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and air conditioner |
| CN204152790U (en) * | 2014-08-18 | 2015-02-11 | 郑州凌达压缩机有限公司 | The bent axle of compressor and there is its rotary compressor |
| CN204783668U (en) * | 2015-07-13 | 2015-11-18 | 广东美芝制冷设备有限公司 | Many rotary cylinder compressor and have its refrigeration cycle device |
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2015
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| CN104963864A (en) | 2015-10-07 |
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