CN103821719B - Volume control type rotary compressor and there is its refrigerating circulatory device - Google Patents
Volume control type rotary compressor and there is its refrigerating circulatory device Download PDFInfo
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- CN103821719B CN103821719B CN201410046931.5A CN201410046931A CN103821719B CN 103821719 B CN103821719 B CN 103821719B CN 201410046931 A CN201410046931 A CN 201410046931A CN 103821719 B CN103821719 B CN 103821719B
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Abstract
The invention discloses a kind of volume control type rotary compressor and there is its refrigerating circulatory device.The compression mechanism of volume control type rotary compressor includes: each have the first compression chamber and the first cylinder of the second compression chamber and the second cylinder, it is located at the median septum between the first cylinder and the second cylinder, first piston and the second piston revolved round the sun is carried out respectively in the first compression chamber and the second compression chamber, the first slide plate and second slide plate of reciprocal action can be carried out, second cylinder has the second slide plate chamber at the back having received the second slide plate, make the pressure switcher that the pressure in the second slide plate chamber of sealing switches between 2 different pressure, wherein median septum is connected with suction nozzle, the thickness of median septum is Hm, the thickness of the first cylinder is Ha, the thickness of the second cylinder is that Hb meets following relation: Hm3＞ Ha3+Hb3.The volume control type rotary compressor of the present invention, improves compressor efficiency.
Description
Technical field
The present invention relates to refrigerating field, especially relate to a kind of volume control type rotary compressor and there is its kind of refrigeration cycle
Device.
Background technology
The capacity controlled rotary compressor of twin-tub, relative to P pattern, S mode can deteriorate several percentage point.It is the most former
Because of as follows: in S mode, (1) is independent because of the suction nozzle of each cylinder of connection, so, operating cylinder will not be inhaled
Enter the air-breathing of cylinder in stopping.(2) for the lifting of compression efficiency, cylinder finite thickness system, so air-breathing can not be expanded
Passage, improves gettering efficiency.(3) even if refrigerating capacity halves, due to piston and the rotation of eccentric shaft, slippage loss will not subtract
Half.
Summary of the invention
It is contemplated that one of technical problem solved the most to a certain extent in correlation technique.
To this end, it is an object of the present invention to propose a kind of volume control type rotary compressor, improve compressor efficiency.
Further object is that and propose a kind of kind of refrigeration cycle dress with above-mentioned volume control type rotary compressor
Put.
Volume control type rotary compressor according to embodiments of the present invention, seal casinghousing has been received electrodynamic machine and
The rotary compression mechanism being connected with this motor, described compression mechanism includes: each have the first compression chamber and the second compression chamber
The first cylinder and the second cylinder, between described first cylinder and the second cylinder, have median septum, have in septum plate
To described first compression chamber and the suction hole of described second compression chamber opening, at described first compression chamber and described second compression chamber
The middle first piston carrying out respectively revolving round the sun and the second piston, along with the respective revolution of these first pistons and the second piston is permissible
Carry out the first slide plate of reciprocal action and the second slide plate, in described second cylinder, receive the back of described second slide plate
Second slide plate chamber, the pressure in the described second slide plate chamber of sealing is made to switch between 2 different pressure with to described
The compression of two cylinders carries out stopping or releasing the pressure switcher stopped, and wherein median septum is connected with suction nozzle；In described
The thickness of dividing plate is Hm, the thickness of described first cylinder is Ha, the thickness of described second cylinder is that Hb meets following relation:
Hm3>Ha3+Hb3。
Volume control type rotary compressor according to embodiments of the present invention, in the S mode of the second compression chamber cylinder deactivation, from suction
The low-pressure gas that trachea sucks flows only in the first compression chamber, so improve the gettering efficiency of the first compression chamber, improves pressure
Contracting engine efficiency.
It addition, volume control type rotary compressor according to the above embodiment of the present invention can also have following additional technology
Feature:
In some examples of the present invention, the thickness of the first cylinder and the thickness of the second cylinder are equal.
According to some embodiments of the present invention, described pressure switcher is connected with described second slide plate chamber by septum plate.
According to some embodiments of the present invention, the opening portion in described second slide plate chamber connects deformable sealing plate with by described
Second slide plate is maintained in described second slide plate chamber.
Specifically, described sealing plate flexure be more than 12 μm.
Specifically, described pressure switcher is three-way valve or cross valve.
Refrigerating circulatory device according to embodiments of the present invention, rotary including volume control type according to the above embodiment of the present invention
Compressor, condenser, expansion gear, vaporizer.
Accompanying drawing explanation
Fig. 1 represents the internal structure of twin-tub volume control type rotary compressor and the freezing cycle device of this compressor of connection
Constitute, it addition, represent the operating principle of the three-way valve required for operational mode switching；
Fig. 2 represents the detailed longitudinal section (P template) of compression mechanism；Median septum is the F-X-G sectional view of Fig. 3,
Cylinder is the E-X-G sectional view of Fig. 3；
Fig. 3 represents structure and the configuration of piston slide plate of cylinder, it addition, represent suction nozzle and the pressure switching connecting median septum
The plane graph (P pattern) of pipe, additionally, be the Y cross section of Fig. 1；
Fig. 4 represents pressure switching pipe and the longitudinal section (P pattern) in slide plate chamber connecting median septum, is the E-X-of Fig. 3
The sectional view of G；
Fig. 5 represents that the plane graph (S mode) of the slide plate static in slide plate chamber, it addition, be Fig. 1 from the piston abjection rotated
Y cross section；
Fig. 6 represent due to sealing plate deformation and the plane graph (S mode) of static slide plate, it addition, be the Z cross section of Fig. 1；
Fig. 7 represents the detailed longitudinal section (S mode) of compression mechanism corresponding for Fig. 2 (P pattern), and median septum is Fig. 6
F-X-G sectional view, cylinder is the E-X-G sectional view of Fig. 6；
Fig. 8 is that the refrigerating capacity data of conventional compressor and the present invention compare；
Fig. 9 is that the COP data of conventional compressor and the present invention compare.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, the most identical
Or similar label represents same or similar element or has the element of same or like function.Retouch below with reference to accompanying drawing
The embodiment stated is exemplary, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
One side in 2 cylinder compression chambeies carries out uncompressed operation, and the volume control type that compressor capacity carries out 2 sections of switchings rotates
Formula compressor, has as shown in [patent documentation 1], makes " the pressure that the suction pressure of side's compression chamber switches in high pressure and low pressure
Contracting chamber pressure switching mode " method, and shown in [patent documentation 2] and [Patent Document 3], make the slide plate chamber of sealing
The method of " slide plate cavity pressure switching mode " that pressure switches between high pressure and low pressure.Their feature is all to make to slide
The reciprocating action of sheet stops in the short time and is accommodated in slide plate chamber.
Twin-tub volume control type rotary compressor, has 2 compression chambers and is compressed operational mode (the P mould of operational mode
Formula) and the compression chamber of a side be compressed running, the compression chamber of the opposing party stop operation mode (S mode) that compression running,
The refrigerating capacity of compressor is controlled by 2 operational modes that the two is different.Its result, such as can control air-conditioning cold flow
And power consumption.
Above-mentioned " compression chamber pressure switching mode ", be connected to enclosure interior (high tension loop) and the air-breathing of 2 cylinders
One side and three-way valve (or cross valve), the pressure of compression chamber of pipe (low tension loop) switch between high pressure and low pressure.
By this control, the compression of the compression chamber of a side can stop, or releases stopping.Therefore, " compression chamber pressure switches
Formula " need to connect suction nozzle independent in each cylinder respectively.
For this point, " slide plate cavity pressure switching mode " can make the slide plate chamber of the cylinder of a side seal, and its internal pressure exists
Switch between high pressure and low pressure, launch stop (S mode) of compression chamber compression or release (the P pattern) of cylinder deactivation.
Therefore, in " the pressure switching mode in slide plate chamber ", it is not necessary to suction nozzle independent in 2 cylinders will be connected.The present invention,
Eye is in the essence of " slide plate cavity pressure switching mode ", and feature is that suction nozzle is not connected to cylinder, has 1 air intake passage, respectively
From compression chamber connect median septum.And, the operational efficiency running the many S mode of the frequency promotes, and is main purpose.
It addition, slide plate chamber is in order to keep the slide plate stopped, " compression chamber pressure switching mode " is to use Magnet [patent documentation 1],
In " slide plate cavity pressure switching mode ", it is to have acted on height pressure reduction (patent documentation 2 and Patent Document 3) in slide plate two sides
Volume control type rotary compressor according to embodiments of the present invention, low tension outlet pipe 72 warp of reservoir 70
Cross angling hole 43a and angling hole 43b that the tip of the suction tube 41 inlet hole 45 from median septum 40 possesses
Connection compression chamber 13a and compression chamber 13b.Two compression chambers all compress in the P pattern of operation, from suction nozzle 4
1 flow out low-pressure gas, can equalization be diverted in above-mentioned 2 compression chambers.Compression chamber 13b is to stop compression
During S mode is run, the whole of low-pressure gas flow only in compression chamber 13a, so the air-breathing effect of compression chamber 13a
Rate can promote.
About year operation ratio, general S mode be about 3 times of P pattern so the improved efficiency of S mode is permissible
The biggest contribution is had to improving year efficiency (APF).And, the present invention has that improves P mode efficiencies to involve effect
Really.It addition, by connecting a suction nozzle in median septum, two suction nozzles can be reduced into one.It addition,
The connection design in pressure switching pipe and slide plate chamber can be improved as described later.
Wherein, [patent documentation 1] JP JP2004301114 rotating seal type compressor and system
SAPMAC method device
[patent documentation 2] JP JP2008520901 volume variable rotating compressor and cold
But system
[Patent Document 3] JP JP2008128231 volume variable rotating compressor
Specifically, volume control type rotary compressor 80 according to embodiments of the present invention, seal casinghousing 1 has received electricity
Electrodynamic machine 6 and the rotary compression mechanism 5 being connected with this motor 6, compression mechanism 5 includes: each have the first pressure
The first cylinder 10a and the second cylinder 10b of contracting chamber 13a and the second compression chamber 13b, at the first cylinder 10a and the second cylinder
There is median septum 40 between 10b, have in median septum 40 the first compression chamber 13a and the air-breathing of the second compression chamber 13b opening
Hole 45, in the first compression chamber 13a and the second compression chamber 13b, carry out the first piston 24a and the second piston 24b that revolve round the sun respectively,
Along with the respective revolution of these first pistons 24a and the second piston 24b can carry out the first slide plate 20a of reciprocal action
With the second slide plate 20b, the second slide plate chamber 15b at the back having received the second slide plate 20b in the second cylinder 10b, make sealing
The pressure of the second slide plate chamber 15b switch over to enter with the compression to the second cylinder 10b between 2 different pressure
Row stops or releasing the pressure switcher stopped, and wherein median septum 40 is connected with suction nozzle 41.Alternatively, pressure switcher
For three-way valve 50 or cross valve.
Wherein, the thickness of median septum 40 be Hm, the thickness of the first cylinder 10a be Ha, the thickness of the second cylinder 10b
Following relation is met for Hb:
Hm3>Ha3+Hb3。
Volume control type rotary compressor 80 according to embodiments of the present invention, in the S mode of the second compression chamber 13b cylinder deactivation,
The low-pressure gas sucked from suction nozzle 41 flows only to the first compression chamber 13a, so improve the air-breathing of the first compression chamber 13a
Efficiency, improves compressor efficiency.
In some examples of the present invention, the thickness of the first cylinder 10a and the thickness of the second cylinder 10b are equal.
Specifically, pressure switcher is connected with the second slide plate chamber 15b by median septum 40.
According to some embodiments of the present invention, the opening portion of the second slide plate chamber 15b connects deformable sealing plate 16, now
Due to the deformation to the sealing plate 16 that the pressure reduction of the two of this sealing plate 16 plane effects brings, the second slide plate 20b can be protected
Hold in the second slide plate chamber 15b.Specifically, the flexure of sealing plate 16 is more than 12 μm.
Refrigerating circulatory device according to embodiments of the present invention, rotary including volume control type according to the above embodiment of the present invention
Compressor, condenser, expansion gear, vaporizer.
It should be noted that the connection between volume control type rotary compressor, condenser, expansion gear, vaporizer
Relation is prior art, is the most just not described in detail.
Below with reference to Fig. 1-Fig. 9, the volume control type rotary compressor according to the specific embodiment of the invention is described, wherein
Cylinder 10a refers to the first cylinder, and cylinder 10b refers to the second cylinder, and compression chamber 13a refers to the first compression chamber,
Compression chamber 13b refers to the second compression chamber, and slide plate 20a refers to the first slide plate, and slide plate 20b refers to the second slide plate,
Piston 24a refers to first piston, and piston 24b refers to the second piston, and slide plate chamber 15a refers to the first slide plate chamber,
Slide plate chamber 15b refers to the second slide plate chamber.
The embodiment of the present invention illustrates according to Fig. 1-Fig. 9.The capacity controlled rotary compression of twin-tub shown in Fig. 1
Machine (hereinafter referred to as rotary compressor 80), by electrodynamic machine 6 fixing on the internal diameter of housing 1 and compressor
Structure 5 forms.The compression cylinder A10a that configured by median septum about 40 of mechanism 5 and cylinder B10b, on it
Base bearing 25 that portion is fixing and supplementary bearing 30, base bearing acoustic filter 26 and supplementary bearing acoustic filter 33, by main shaft
Hold 25 and supplementary bearing 30 carry out the compositions such as the eccentric shaft 7 that slidably supports.The periphery of circular median septum 40 is fixed
Inner radius at housing 1.
The gases at high pressure discharged from the exhaustor 3 of seal casinghousing 1 become through condenser C, expansion valve V, vaporizer E
Low-pressure gas, arrives in reservoir 70.Afterwards, low-pressure gas from connect median septum 40 periphery suction nozzle (or
Person is to be called suction tube) 41 (Fig. 2) are flowed in cylinder 10a and cylinder 10b.High pressure gas after compression
Body is discharged to housing 2 from base bearing acoustic filter 26.And, the thickness of 2 cylinders and discharge capacity are also suitable.But
According to application target, respective cylinder thickness and discharge capacity can suitably change.
Three-way valve 50 that the outside of housing 1 possesses, it is off or releases the formula compressor 80 that stops the rotation being in operation
Time cylinder 10b the means of compression.Three-way valve 50 has 3 connectors, and high-pressure mouth 50a connects shell
The senior executive 52 of body 1 inside opening.Low pressure port 50b connects the low tension outlet pipe 72, just of reservoir 70
Pressure mouth 50c connects the pressure switching pipe 55 that the periphery of median septum 40 possesses.As described later, pressure switching pipe 5
5 connect seal slide plate chamber 15b, make the pressure in this chamber switch between high pressure and low pressure.Three-way valve 50 interior
Portion possesses the slide block 57 that can slide.Slide block 57 is driven by the solenoid (not shown) constituting three-way valve 50
Dynamic.Alternatively, it is also possible to use cross valve to replace three-way valve.
The P-mode of Fig. 1 is in the slide block 57 position to high-low pressure mouth 50c opening, so coupled pressure is cut
Changing the pressure of pipe 55 is the intrinsic pressure suitable high pressure (Pd) with housing 1.Capacity controlled rotary compressor 8
The when that 2 cylinders starting compression in 0, the refrigerating capacity of 100% can be played.This fortune of 100%
Behavior P pattern.
On the other hand, during the S-mode making slide block 57 move to Fig. 1 by control, pressure switching pipe 55 is with low
Press the low pressure (Ps) that the pressure of outlet 72 is equal.Now, cylinder 10b in rotary compressor 80
Compression can stop, so the refrigerating capacity of 50% can be dropped to.This operation is referred to as S mode.Like this, possesses appearance
Amount controls the operating rotary compressor 80 of function, by the control of three-way valve 50, at P pattern and S mould
Between formula, pattern switching can be carried out comfortablely.
The pressure of the pressure switching pipe 55 of Fig. 2 is high pressure (Pd), so being that P pattern is in operation.Cylinder A
In compression chamber 13a that 10a and cylinder B10b is each provided with and compression chamber 13b, piston 24a and work
Plug 24b revolves round the sun.The slide plate 20a and the slide plate 20b that abut with the external diameter of these pistons process in the cylinder
Vane slot inside move back and forth.It addition, the back of these slide plates is by slide plate chamber 15a and slide plate chamber 15b
Constitute.
Possesses the upper end of slide plate chamber 15a of sliding blade spring 21a to housing 1 split shed, so its pressure is high pressure
Side.On the other hand, the upper end open face of slide plate chamber 15b seals at median septum 40, and lower ending opening face is by passing through
The fixing sealing plate 16 of rivet 18 seals.It addition, slide plate chamber 15b has abolished sliding blade spring.Median septum 40
The suction nozzle 41 of press-in, the low tension outlet pipe 72 of connection reservoir 70 in the suction hole 45 of middle processing.Air-breathing
Inclined hole 43a that the first end portion in hole 45 possesses and inclined hole 43b is respectively to compression chamber 13a and compression chamber
13b opening.
In Fig. 2, pressure switching pipe 55 is high pressure (Pd), so slide plate 20b and slide plate 20a is by 18
The phase place of 0 degree abuts with piston the most respectively and moves back and forth, and compression chamber 13a and compression chamber 13b is carried out generally
Compression (P pattern).In P pattern, the low pressure flowed into the suction hole 45 of median septum 40 from reservoir 70
Gas, is diverted to the angling hole 43a and inclined hole 43b respectively to 2 cylinder opening, on an equal basis at compression chamber 1
3a and compression chamber 13b is compressed.Thereafter, base bearing acoustic filter 26 and supplementary bearing acoustic filter 33 it are discharged to
In.The gases at high pressure discharged in supplementary bearing acoustic filter 33 are by the high pressure of intercommunicating pore 28 with base bearing acoustic filter 26
Gas interflow is discharged to the bottom of motor 6.
Compared with conventional capacity controlled compressor, in order to reduce the inspiratory resistance of low-pressure gas, improve gettering efficiency,
Need to expand the internal diameter of suction hole 45.In order to meet this essential condition, the present invention is designed as the following formula.
Hm3>Ha3+Hb3
As shown in Figure 2, Hm be the thickness of median septum 40, Ha and Hb be cylinder A10a and cylinder A1 respectively
The thickness of 0a.Here, the pressure loss of pipe arrangement (Δ P) and 3 powers of pipe arrangement internal diameter, 1 power of pipe arrangement length
It is directly proportional.This is that the Fanning formula according to Theorem deduction determines.It addition, the air-breathing including reservoir is returned
The total length on road, with design in the past, the situation being i.e. connected cylinder with suction nozzle there is not difference.
According to above-mentioned inequality, substitute suction tube or the effect of inlet hole, use median septum 40 and the thickness of each cylinder
Degree reason be: the present invention need not connect the suction tube of cylinder respectively, can connect in median septum 40 1 suction tube,
Further, inlet hole internal diameter or suction tube external diameter can not be bigger than the thickness of cylinder or median septum.That is, cylinder or in
The thickness of dividing plate can substitute as suction tube internal diameter or inlet hole external diameter.And, the embodiment of the present invention is Ha
=Hb.
The present invention is because being to configure inlet hole 45 in median septum 40 so being easy to expand its internal diameter.As one
Individual case, if Ha=Hb=15mm, Hm=20mm, the pressure loss (Δ P) about improves 19%.
It improves effect can improve P pattern and the gettering efficiency of aftermentioned S mode.
In figs. 3 and 4, the pressure of press-in median septum 40 switches pipe 55, through indulging hole 48 to airtight
Slide plate chamber 15b opening.Therefore, according to the pressure of pressure switching pipe 55, the pressure of slide plate chamber 15b is permissible
Switch over.In conventional design, pressure switching pipe is pressed directly into the slide plate chamber that rigidity is low, so having cylinder deformation
Problem.In contrast to this, pressure can be switched pipe 55 press-in and be connected in the high median septum of rigidity 40 by the present invention,
So above-mentioned problem can be solved.
It follows that in Fig. 5, the pressure of pressure switching pipe 55 is low pressure (Ps), so representing S mode
In operation.At this moment, slide plate 20b when top dead centre, be still in the 15b of slide plate chamber, piston 24b compression
The inside idle running of chamber 13b.Therefore, the pressure of compression chamber 13b switches to low pressure (Ps), steam vent 34
B (Fig. 6) passes through exhaust valve closure.
Fig. 6 is the resting state of slide plate 20b.Generally, slide plate height (being right angle with glide direction) and cylinder
The difference (gap) of vane slot height is the 0.5～0.8/1000 of cylinder thickness (Hb).Such as,
If Hb=15mm, above-mentioned gap is 7.5～12 μm.Sealing plate 16, can be Sweden's steel this
The elastic sheet of sample.If slide plate chamber 15b switches to low pressure (Ps), according to the high pressure (Pd) with housing 1
Difference, be designed as bending more than 12 μm.Its result, deformation due to sealing plate 16, slide plate 20b is being slided
Keeping in the 15b of sheet chamber, S mode continues.Due to the control of three-way valve, the pressure of slide plate chamber 15b switches to height
If pressure (Pd), sealing plate 16 does not the most deform, so slide plate 20b can release static, switches to
P pattern.
Fig. 7 represents the flowing sucking gas in S mode.From reservoir 70 to inlet hole 45 flow low-pressure gas,
Flow only to, in angling hole 43a, be compressed in compression chamber 13a.Thereafter, gases at high pressure can be from base bearing
Acoustic filter 26 is discharged to the bottom of motor 6.The flowing aspect of this suction gas, compression chamber 13a has monopolized inflow
Low-pressure gas in inlet hole 45, so the suction gas flow of compression chamber 13a can increase.Therefore, effect is sucked
Rate can be improved, and refrigerating capacity can be improved.
Fig. 8 and Fig. 9 represents in terms of refrigerating capacity and COP, 2 cylinders connect suction tubes design in the past and in
Dividing plate 40 connects the comparison of the present invention of 1 suction nozzle.In these figures, left side is the data of design in the past, right
Side is the data of the present invention.It addition, be 1.00 (benchmark) with the performance of design in the past in P pattern, represent
The performance of S mode.It addition, as it has been described above, if Ha=Hb=15mm, Hm=20mm, this
Time cylinder inlet hole internal diameter, respectively as 13mm, 18mm.
In fig. 8, confirm the present invention refrigerating capacity S mode be 12%, P pattern be the improvement of 3.6%.At figure
In 9, confirm the present invention COP S mode be 3.6%, P pattern be the improvement of 2.4%.S mode
The big reason of improving of refrigerating capacity is, as it has been described above, compression chamber 13a can monopolize sufficient inspiration capacity.But,
COP to the reason of 3.6% is only, along with the increase of inspiration capacity, input power has increase.On the other hand, P mould
The refrigerating capacity of formula and the improvement aspect of COP, the drag losses (Δ P) sucking gas can be along with inlet hole 45
Expansion and reduce.Here, the COP of S mode improves extremely important, the annual operation ratio aspect of air-conditioner, S
Pattern be about 3 times of P pattern thus 3.6% COP improvement APF evaluate if can improve 1
More than 0%.
During above-mentioned technology discloses, be configured with between median septum 40 and base bearing 25 cylinder A10a, in
Cylinder B10b, in contrast median septum 40 and base bearing 25 it is configured with between dividing plate 40 and supplementary bearing 30
Between configure cylinder B10b, between median septum 40 and supplementary bearing 30 configure cylinder A10a can also.
It addition, the side in 2 cylinders, it is piston and the slide plate swing rotary compression mechanism of slide plate one, separately
The cylinder of one side is the slide plate reciprocating motion type rotary compression mechanism that piston separates with slide plate, the pressure to this compression chamber
Contracting effect is controlled reaching effect and the effect of the present invention.It addition, above-mentioned technology discloses, it is to use eccentric shaft
The vertical rotating formula compressor of above-below direction configuration illustrates, but the horizontal rotation that eccentric shaft horizontal direction is configured
Rotary compressor can also be applied.
Application the present invention raising efficiency techniques capacity controlled rotary compressor can widely domestic air conditioning,
Use on business air conditioner or water heater, refrigerating plant.
The present invention is in the rotary compressor with 2 cylinder compression chambeies, is in operation and makes the compression chamber of a side stop
The volume control type rotary compressor that cylinder or releasing cylinder deactivation make refrigerating capacity variable is relevant.It addition, the present invention
As shown in [patent documentation 2] and [Patent Document 3], have employed and make the slide plate cavity pressure of sealing enter between high pressure and low pressure
" the slide plate cavity pressure switching mode " of row switching.The invention have the characteristics that in the median septum possessed in the middle of 2 cylinders and join
Put the suction hole of an internal diameter expansion, main purpose is to improve gettering efficiency, thus improves compressor efficiency.
The twin-tub volume control type rotary compressor of the present invention can be at air-conditioner, refrigerating equipment, water heater etc.
In can apply, it is possible to use various coolant.It addition, except constant-seed motor, it is also possible to it is mounted on frequency conversion type motor
Expand the scope that refrigerating capacity controls.
In describing the invention, it is to be understood that term " " center ", " longitudinally ", " laterally ", " length
Degree ", " width ", " thickness ", " on ", D score, "front", "rear", "left", "right",
" vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ",
Orientation or the position relationship of the instruction such as " axially ", " radially ", " circumferential " are based on orientation shown in the drawings or position
Put relation, be for only for ease of and describe the present invention and simplify description rather than instruction or the device of hint indication or element
Must have specific orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relatively
Importance or the implicit quantity indicating indicated technical characteristic.Thus, " first ", " second " are defined
Feature can express or implicitly include one or more this feature.In describing the invention, " multiple "
It is meant that two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ",
The term such as " fix " should be interpreted broadly, connect for example, it may be fixing, it is also possible to be to removably connect, or become
Integrally；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to by between intermediary
Connect connected, can be connection or the interaction relationship of two elements of two element internals.Common for this area
For technical staff, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score
Can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And,
Fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature
Or oblique upper, or it is merely representative of fisrt feature level height higher than second feature.Fisrt feature second feature " under ",
" lower section " and " below " can be fisrt feature immediately below second feature or obliquely downward, or it is special to be merely representative of first
Levy level height less than second feature.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ",
The description of " concrete example " or " some examples " etc. means to combine this embodiment or example describes specific features,
Structure, material or feature are contained at least one embodiment or the example of the present invention.In this manual, to upper
The schematic representation stating term is necessarily directed to identical embodiment or example.And, the specific features of description,
Structure, material or feature can be to combine in one or more embodiments in office or example in an appropriate manner.Additionally,
In the case of the most conflicting, those skilled in the art can be by the different embodiments described in this specification or show
The feature of example and different embodiment or example is combined and combines.
Although above it has been shown and described that embodiments of the invention, it is to be understood that above-described embodiment is example
Property, it is impossible to being interpreted as limitation of the present invention, those of ordinary skill in the art within the scope of the invention can be right
Above-described embodiment is changed, revises, replaces and modification.
Claims (7)
1. a volume control type rotary compressor, it is characterised in that including:
Seal casinghousing；
Electrodynamic machine, described electrodynamic machine is located in described seal casinghousing；
Rotary compression mechanism, in described rotary compression mechanism is located at described seal casinghousing and is connected with described electrodynamic machine,
Described rotary compression mechanism includes: each have the first compression chamber and the first cylinder of the second compression chamber and the second cylinder；If
Median septum between described first cylinder and the second cylinder, and septum plate has to described first compression chamber and described
The suction hole of the second compression chamber opening；Carry out respectively revolving round the sun in described first compression chamber and described second compression chamber first lives
Plug and the second piston；Slide along with the respective revolution of these first pistons and the second piston can carry out the first of reciprocal action
Sheet and the second slide plate, and described second cylinder have the second slide plate chamber at the back having received described second slide plate；Make sealing
The pressure in described second slide plate chamber switch over to enter with the compression to described second cylinder between 2 different pressure
Row stops or releasing the pressure switcher stopped, and wherein median septum is connected with suction nozzle；The thickness of septum plate is Hm, institute
The thickness stating the first cylinder is Ha, the thickness of described second cylinder is that Hb meets following relation:
Hm3＞ Ha3+Hb3。
Volume control type rotary compressor the most according to claim 1, it is characterised in that the thickness of described first cylinder
The thickness of degree and described second cylinder is equal.
Volume control type rotary compressor the most according to claim 1, it is characterised in that described pressure switcher leads to
Cross septum plate to connect with described second slide plate chamber.
Volume control type rotary compressor the most according to claim 1, it is characterised in that described second slide plate chamber
Opening portion connects deformable sealing plate with being maintained in described second slide plate chamber by described second slide plate.
Volume control type rotary compressor the most according to claim 4, it is characterised in that described sealing plate flexure
It is more than 12 μm.
Volume control type rotary compressor the most according to claim 1, it is characterised in that described pressure switcher is
Three-way valve or cross valve.
7. a refrigerating circulatory device, including according to the volume control type rotary compression according to any one of claim 1-6
Machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410046931.5A CN103821719B (en) | 2014-02-10 | 2014-02-10 | Volume control type rotary compressor and there is its refrigerating circulatory device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410046931.5A CN103821719B (en) | 2014-02-10 | 2014-02-10 | Volume control type rotary compressor and there is its refrigerating circulatory device |
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| CN103821719A CN103821719A (en) | 2014-05-28 |
| CN103821719B true CN103821719B (en) | 2016-11-16 |
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| WO2015117281A1 (en) * | 2014-02-10 | 2015-08-13 | 广东美芝制冷设备有限公司 | Volume control-type rotary compressor and refrigeration circulation apparatus having same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3869705B2 (en) * | 2001-11-22 | 2007-01-17 | 株式会社日立製作所 | Hermetic rotary compressor |
| WO2006090977A1 (en) * | 2005-02-23 | 2006-08-31 | Lg Electronics Inc. | Capacity varying type rotary compressor and refrigeration system having the same |
| CN101012831A (en) * | 2007-01-29 | 2007-08-08 | 西安庆安制冷设备股份有限公司 | Rotor type twin cylinder compressor taking air-breathing through partition board |
| JP5070097B2 (en) * | 2007-08-28 | 2012-11-07 | 東芝キヤリア株式会社 | Two-cylinder rotary compressor and refrigeration cycle apparatus using the same |
| CN102644596B (en) * | 2011-02-16 | 2014-09-10 | 广东美芝制冷设备有限公司 | Capacity control type rotary compressor |
| CN203717345U (en) * | 2014-02-10 | 2014-07-16 | 广东美芝制冷设备有限公司 | Capacity control type rotary compressor and refrigeration cycle device provided with same |
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