CN103557159B - Rotary compressor - Google Patents

Rotary compressor Download PDF

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Publication number
CN103557159B
CN103557159B CN201310473535.6A CN201310473535A CN103557159B CN 103557159 B CN103557159 B CN 103557159B CN 201310473535 A CN201310473535 A CN 201310473535A CN 103557159 B CN103557159 B CN 103557159B
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cylinder
transfiguration
rotary compressor
exhaust
clapboard
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CN103557159A (en
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黄水松
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Guangdong Meizhi Compressor Co Ltd
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Guangdong Meizhi Compressor Co Ltd
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Abstract

The invention discloses a kind of rotary compressor, this rotary compressor comprises: housing; Drive motor, drive motor is located in housing; Compressing mechanism, compressing mechanism comprises startup cylinder and transfiguration cylinder, wherein start cylinder and/or transfiguration cylinder operation work when rotary compressor works, start between cylinder and transfiguration cylinder and be folded with intermediate clapboard, start one of cylinder and transfiguration cylinder be positioned at intermediate clapboard above and another is positioned at below intermediate clapboard; The intakeport starting cylinder is suitable for being connected with exhaust or air-breathing, and the afterbody starting the vane slot of cylinder is communicated with enclosure interior; The intakeport of transfiguration cylinder is suitable for being connected with exhaust or air-breathing, and the afterbody of the vane slot of transfiguration cylinder is provided with the first magnetic part being suitable for the slide plate adsorbing transfiguration cylinder, and the afterbody of the vane slot of transfiguration cylinder is communicated with enclosure interior.Rotary compressor of the present invention has three rank transfiguration functions, has more cold and selects, and particularly selects minimum injection rate greatly can improve travelling comfort and power saving more when low-load.

Description

Rotary compressor
Technical field
The present invention relates to a kind of rotary compressor with two cylinder arrangement.
Background technique
Traditional two-cylinder rotary compressor comprises upper cylinder and lower cylinder, and usually, this pair of cylinder only has a kind of discharge capacity, and namely upper cylinder and lower cylinder work simultaneously, and the compressor displacement of this two cylinder arrangement is single, and practicability is poor.
After improving the immutable duplex cylinder compressor of this discharge capacity, occurred two rank transfiguration duplex cylinder compressors, its upper cylinder works always, and lower cylinder optionally works, thus makes this duplex cylinder compressor have two rank variable exhaust patterns.
But this duplex cylinder compressor with two rank variable exhaust patterns still can not meet the refrigeration of air-conditioning system well and heat requirement, particularly when low-load, the air displacement of compressor is still very large, and cause the waste of energy, power consumption is high.
Summary of the invention
The present invention is intended to solve one of above-mentioned technical problem of the prior art at least to a certain extent.
For this reason, one object of the present invention is to propose a kind of rotary compressor, and this rotary compressor has three rank variable displacement patterns, thus can meet refrigeration better and heat requirement.
The rotary compressor of embodiment according to a first aspect of the invention, comprising: housing; Drive motor, described drive motor is located in described housing; Compressing mechanism, described compressing mechanism comprises startup cylinder and transfiguration cylinder, wherein described startup cylinder and/or described transfiguration cylinder operation work when described rotary compressor work; Be folded with intermediate clapboard between described startup cylinder and described transfiguration cylinder, one of described startup cylinder and described transfiguration cylinder be positioned at described intermediate clapboard above and another is positioned at below described intermediate clapboard; The intakeport of described startup cylinder is suitable for being connected with exhaust or air-breathing, and the afterbody of the vane slot of described startup cylinder is communicated with described enclosure interior; The intakeport of described transfiguration cylinder is suitable for being connected with exhaust or air-breathing, and the afterbody of the vane slot of described transfiguration cylinder is provided with the first magnetic part being suitable for the slide plate adsorbing described transfiguration cylinder, and the afterbody of the vane slot of described transfiguration cylinder is communicated with described enclosure interior.
According to the rotary compressor of the embodiment of the present invention, there are three rank transfiguration functions, its structure is close with traditional two rank variable volume compressors, manufacturing process is simple, but there is more cold to select than two rank variable volume compressors, particularly select when low-load minimum injection rate greatly can improve travelling comfort and power saving more.
According to some embodiments of the present invention, described rotary compressor also comprises: first starts cylinder pressure control device and the first transfiguration cylinder pressure control device, described first startup cylinder pressure control device is connected with the intakeport of described startup cylinder the intakeport be suitable for described startup cylinder and is connected with exhaust or air-breathing, and described first transfiguration cylinder pressure control device is connected with the intakeport of described transfiguration cylinder the intakeport be suitable for described transfiguration cylinder and is connected with exhaust or air-breathing.
According to some embodiments of the present invention, described rotary compressor also comprises: three-way pipe, described first starts cylinder pressure control device is connected with an interface of a described three-way pipe respectively with described first transfiguration cylinder pressure control device, and two other interface of described three-way pipe is suitable for being communicated with air-breathing and exhaust respectively.
According to some embodiments of the present invention, described first magnetic part is permanent magnet or electromagnet.
The rotary compressor of embodiment according to a further aspect of the invention, comprising: housing; Drive motor, described drive motor is located in described housing; Compressing mechanism, described compressing mechanism comprises startup cylinder and transfiguration cylinder, wherein described startup cylinder and/or described transfiguration cylinder operation work when described rotary compressor work; Be folded with intermediate clapboard between described startup cylinder and described transfiguration cylinder, one of described startup cylinder and described transfiguration cylinder be positioned at described intermediate clapboard above and another is positioned at below described intermediate clapboard; The intakeport of described startup cylinder is suitable for being connected with air-breathing, and the afterbody of the vane slot of described startup cylinder is communicated with described enclosure interior and is provided with the electromagnet being suitable for the slide plate adsorbing described startup cylinder; The intakeport of described transfiguration cylinder is suitable for being connected with exhaust or air-breathing, and the afterbody of the vane slot of described transfiguration cylinder is provided with the first magnetic part being suitable for the slide plate adsorbing described transfiguration cylinder, and the afterbody of the vane slot of described transfiguration cylinder is communicated with described enclosure interior.
According to the rotary compressor of the embodiment of the present invention, there are three rank transfiguration functions, its structure is close with traditional two rank variable volume compressors, manufacturing process is simple, but there is more cold to select than two rank variable volume compressors, particularly select when low-load minimum injection rate greatly can improve travelling comfort and power saving more.
According to some embodiments of the present invention, described rotary compressor also comprises: the first transfiguration cylinder pressure control device, and described first transfiguration cylinder pressure control device is connected with the intakeport of described transfiguration cylinder the intakeport be suitable for described transfiguration cylinder and is connected with exhaust or air-breathing.
According to some embodiments of the present invention, described rotary compressor also comprises: three-way pipe, and described first transfiguration cylinder pressure control device is connected with an interface of described three-way pipe, and two other interface of described three-way pipe is suitable for being communicated with air-breathing and exhaust respectively.
According to some embodiments of the present invention, described electromagnet is located at inside and/or the outside of described startup cylinder.
According to some embodiments of the present invention, described electromagnet is positioned at top and/or the below of the sliding blade spring of described startup cylinder.
According to some embodiments of the present invention, described first magnetic part is permanent magnet or electromagnet.
The rotary compressor of embodiment according to another aspect of the invention, comprising: housing; Drive motor, described drive motor is located in described housing; Compressing mechanism, described compressing mechanism comprises startup cylinder and transfiguration cylinder, wherein described startup cylinder and/or described transfiguration cylinder operation work when described rotary compressor work; Be folded with intermediate clapboard between described startup cylinder and described transfiguration cylinder, one of described startup cylinder and described transfiguration cylinder be positioned at described intermediate clapboard above and another is positioned at below described intermediate clapboard; The intakeport of described startup cylinder is suitable for being connected with exhaust or air-breathing, and the afterbody of the vane slot of described startup cylinder is communicated with described enclosure interior; The intakeport of described transfiguration cylinder is suitable for being connected with air-breathing, afterbody and the described enclosure interior of the vane slot of described transfiguration cylinder are kept apart, the afterbody of the vane slot of described transfiguration cylinder is provided with the second magnetic part being suitable for the slide plate adsorbing described transfiguration cylinder, and described rotary compressor also comprises: the second transfiguration cylinder pressure control device, described second transfiguration cylinder pressure control device is connected with the afterbody of the vane slot of described transfiguration cylinder the afterbody be suitable for the vane slot of described transfiguration cylinder and is connected with exhaust or air-breathing.
According to the rotary compressor of the embodiment of the present invention, there are three rank transfiguration functions, its structure is close with traditional two rank variable volume compressors, manufacturing process is simple, but there is more cold to select than two rank variable volume compressors, particularly select when low-load minimum injection rate greatly can improve travelling comfort and power saving more.
According to some embodiments of the present invention, described rotary compressor also comprises: second starts cylinder pressure control device, and described second startup cylinder pressure control device is connected with the intakeport of described startup cylinder the intakeport be suitable for described startup cylinder and is connected with exhaust or air-breathing.
According to some embodiments of the present invention, described rotary compressor also comprises: three-way pipe, described second starts cylinder pressure control device is connected with an interface of a described three-way pipe respectively with described second transfiguration cylinder pressure control device, and two other interface of described three-way pipe is suitable for being communicated with pressure of inspiration(Pi) and exhaust pressure respectively.
According to some embodiments of the present invention, described second magnetic part is permanent magnet or electromagnet.
According to some embodiments of the present invention, described rotary compressor also comprises: Sealing, and the vane slot of described transfiguration cylinder and described enclosure interior are kept apart by described Sealing.
The rotary compressor of embodiment in accordance with a further aspect of the present invention, comprising: housing; Drive motor, described drive motor is located in described housing; Compressing mechanism, described compressing mechanism comprises startup cylinder and transfiguration cylinder, wherein described startup cylinder and/or described transfiguration cylinder operation work when described rotary compressor work; Be folded with intermediate clapboard between described startup cylinder and described transfiguration cylinder, one of described startup cylinder and described transfiguration cylinder be positioned at described intermediate clapboard above and another is positioned at below described intermediate clapboard; The intakeport of described startup cylinder is suitable for being connected with air-breathing, and the afterbody of the vane slot of described startup cylinder is communicated with described enclosure interior and is provided with the electromagnet being suitable for the slide plate adsorbing described startup cylinder; The intakeport of described transfiguration cylinder is suitable for being connected with air-breathing, afterbody and the described enclosure interior of the vane slot of described transfiguration cylinder are kept apart, the afterbody of the vane slot of described transfiguration cylinder is provided with the second magnetic part being suitable for the slide plate adsorbing described transfiguration cylinder, and described rotary compressor also comprises: the second transfiguration cylinder pressure control device, described second transfiguration cylinder pressure control device is connected with the afterbody of the vane slot of described transfiguration cylinder the afterbody be suitable for the vane slot of described transfiguration cylinder and is connected with exhaust or air-breathing.
According to the rotary compressor of the embodiment of the present invention, there are three rank transfiguration functions, its structure is close with traditional two rank variable volume compressors, manufacturing process is simple, but there is more cold to select than two rank variable volume compressors, particularly select when low-load minimum injection rate greatly can improve travelling comfort and power saving more.
According to some embodiments of the present invention, described rotary compressor also comprises: three-way pipe, and described second transfiguration cylinder pressure control device is connected with an interface of described three-way pipe, and two other interface of described three-way pipe is suitable for being communicated with air-breathing and exhaust respectively.
According to some embodiments of the present invention, described electromagnet is located at inside and/or the outside of described startup cylinder.
According to some embodiments of the present invention, described electromagnet is positioned at top and/or the below of the sliding blade spring of described startup cylinder.
According to some embodiments of the present invention, described rotary compressor also comprises: Sealing, and the vane slot of described transfiguration cylinder and described enclosure interior are kept apart by described Sealing.
According to some embodiments of the present invention, described second magnetic part is permanent magnet or electromagnet.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of rotary compressor according to an embodiment of the invention;
Fig. 2 is the schematic diagram of rotary compressor in accordance with another embodiment of the present invention;
Fig. 3 is the schematic diagram of the rotary compressor according to another embodiment of the present invention;
Fig. 4 is the schematic diagram of the rotary compressor according to another embodiment of the present invention;
Fig. 5 is the schematic diagram of the rotary compressor according to another embodiment of the present invention;
Fig. 6 is the schematic diagram of the rotary compressor according to another embodiment of the present invention;
Fig. 7 is the schematic diagram of the rotary compressor according to another embodiment of the present invention;
Fig. 8 is the schematic diagram of the rotary compressor according to another embodiment of the present invention;
Fig. 9 is the schematic diagram of the rotary compressor according to another embodiment of the present invention;
Figure 10 is the schematic diagram of the rotary compressor according to another embodiment of the present invention;
Figure 11 is the schematic diagram of the rotary compressor according to another embodiment of the present invention;
Figure 12 is the schematic diagram of the rotary compressor according to another embodiment of the present invention;
Figure 13 is the schematic diagram of the rotary compressor according to another embodiment of the present invention;
Figure 14 is the schematic diagram of the rotary compressor according to another embodiment of the present invention;
Figure 15 is the schematic diagram of the rotary compressor according to another embodiment of the present invention;
Figure 16 is the schematic diagram of the rotary compressor according to another embodiment of the present invention;
Figure 17 is the schematic diagram of the rotary compressor according to another embodiment of the present invention;
Figure 18 is the schematic diagram of the rotary compressor according to another embodiment of the present invention;
Figure 19 is the schematic diagram of the rotary compressor according to another embodiment of the present invention.
Reference character:
Rotary compressor 100;
Housing 1;
Main bearing 21, main baffler 211; Start cylinder 22, sliding blade spring 221, electromagnet 222; Intermediate clapboard 23; Transfiguration cylinder 24, first magnetic part 241, second magnetic part 242; Supplementary bearing 25, secondary baffler 251; Bent axle 26;
First starts cylinder pressure control device 31, second starts cylinder pressure control device 32;
First transfiguration cylinder pressure control device 41, second transfiguration cylinder pressure control device 42;
Sealing 52.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
In describing the invention, it will be appreciated that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, " top ", " end " " interior ", " outward " they be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; instead of instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristics.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, 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 it " on " or D score can comprise the first and second features and directly contact, also can comprise the first and second features and not be directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " comprise fisrt feature immediately below second feature and tiltedly below, or only represent that fisrt feature level height is less than second feature.
Below with reference to Fig. 1-Figure 19, the rotary compressor 100 according to the embodiment of the present invention is described.
Rotary compressor 100 according to the embodiment of the present invention comprises housing 1, drive motor and compressing mechanism.
According to one embodiment of present invention, housing 1 can comprise main casing, upper shell and lower shell body, main casing can be formed as the ring-type that top and bottom are all opened wide, upper shell is located at above main casing, upper shell and main casing can be integrally welded, lower shell body is located at below main casing, lower shell body and main casing can be integrally welded, upper shell, main casing and lower shell body are encircled into an airtight installation cavity, and wherein main member such as compressing mechanism, the drive motor etc. of rotary compressor 100 are all arranged at this installation cavity inside.But should be understood that, the structure of housing 1 is not limited thereto according to an embodiment of the invention.
At the top of compressing mechanism, drive motor can be provided with, drive motor can comprise stators and rotators, rotor can be fixed on the internal face of housing 1 such as main casing, rotor is located at the inner side of stator rotationally, the top of the bent axle 26 of rotor and compressing mechanism is fixed thus is with the center axis thereof of dynamic crankshaft 26 flexing axle 26, and in other words, bent axle 26 is driven by drive motor.The tenminal block of drive motor can be arranged on the top of drive motor, and tenminal block can be protruding to be suitable for connecting power supply through upper shell.
As shown in Fig. 1-Figure 19, compressing mechanism comprises startup cylinder 22 and transfiguration cylinder 24, in other words, is double-cylinder compressor structure according to the compressing mechanism of the compressor 100 of the embodiment of the present invention.Wherein when rotary compressor 100 works, startup cylinder 22 and/or transfiguration cylinder 24 run work, and it is different with the air displacement of transfiguration cylinder 24 to start cylinder 22, such as start cylinder 22 and run work with transfiguration cylinder 24 simultaneously, when bent axle 26 rotates with a certain constant speed, it is different for compressing the air displacement after discharging from compressing the air displacement after discharging via transfiguration cylinder 24 via startup cylinder 22 in the unit time.Here, " operation work " should be understood to start the compression that cylinder 22 and/or transfiguration cylinder 24 participate in refrigerant, can be discharged in corresponding cylinder by the refrigerant after compressing, accordingly, start cylinder 22 and/or transfiguration cylinder 24 do not work can be understood as respective cylinder refrigerant in this cylinder not by piston compression, piston is in idling conditions.
Like this, when rotary compressor 100 works, there are three kinds of different displacements patterns: the first runs work for only starting cylinder 22, and namely refrigerant is only compressed in startup cylinder 22, and the piston in transfiguration cylinder 24 can be in idling conditions, not compression refrigerant.The second runs work for a transfiguration cylinder 24, and namely refrigerant is only compressed in transfiguration cylinder 24, and the piston started in cylinder 22 is in idling conditions, not compression refrigerant.The third is that startup cylinder 22 and transfiguration cylinder 24 run work simultaneously, and namely refrigerant is compressed simultaneously in startup cylinder 22 and transfiguration cylinder 24.
Thus, have three kinds of different displacements mode of operations according to the rotary compressor 100 of the embodiment of the present invention, achieve three rank transfigurations, can adapt to better and meet the refrigeration of air-conditioning system and heat requirement, reduce energy consumption, and structure is relatively simple, it is convenient to control.
According to some embodiments of the present invention, start between cylinder 22 and transfiguration cylinder 24 and be folded with intermediate clapboard 23, start one of cylinder 22 and transfiguration cylinder 24 be positioned at intermediate clapboard 23 above and another be positioned at below intermediate clapboard 23.
In other words, according to some embodiments of the present invention, as shown in Fig. 1-Fig. 2, Fig. 4-Figure 11, starting cylinder 22 is positioned at above intermediate clapboard 23, and transfiguration cylinder 24 is positioned at below intermediate clapboard 23, in these some embodiments, what start cylinder 22 is provided with main bearing 21 above, main bearing 21, start between cylinder 22 and intermediate clapboard 23 and limit a compression chamber, below transfiguration cylinder 24, be provided with supplementary bearing 25, supplementary bearing 25, between transfiguration cylinder 24 and intermediate clapboard 23, limit another compression chamber.
According to other embodiments of the present invention, as shown in Fig. 3, Figure 12-Figure 19, starting cylinder 22 is positioned at below intermediate clapboard 23, transfiguration cylinder 24 is positioned at above intermediate clapboard 23, in these some embodiments, transfiguration cylinder 24 be above provided with main bearing 21, main bearing 21, between transfiguration cylinder 24 and intermediate clapboard 23, limit a compression chamber, start below cylinder 22 and be provided with supplementary bearing 25, supplementary bearing 25, startup cylinder 22 and intermediate clapboard 23 limit another compression chamber.
As shown in Fig. 1-Figure 19, according to some embodiments of the present invention, the outside of main bearing 21 is provided with main baffler 211, is provided with secondary baffler 251 below supplementary bearing 25.Like this, be drained in main baffler 211 die cavity by main bearing 21 after refrigerant is compressed in upper compression chamber, in main baffler 211 die cavity, be finally drained into housing 1 inner.Be drained in secondary baffler 251 die cavity by supplementary bearing 25 after refrigerant is compressed in lower compression chamber, refrigerant in secondary baffler 251 die cavity is drained in main baffler 211 die cavity by the passage of compressing mechanism inside, finally can be drained into housing 1 inner in main baffler 211 die cavity.Because the refrigerant after upper compression chamber and the compression of lower compression chamber is finally all drained into housing 1 inside, thus, rotary compressor 100 according to some embodiments of the invention also can be referred to as High-back-pressure rotary compressor 100.
But should be understood that, above-mentioned exhaust mode is only a kind of optional mode.For the ordinary skill in the art, obviously also exhaust passage can be arranged in intermediate clapboard 23, the exhaust starting cylinder 22 and/or transfiguration cylinder 24 is finally drained into housing 1 inside by intermediate clapboard 23 and main baffler 211.
In brief, the rotary compressor 100 of the embodiment of the present invention does not have particular/special requirement for exhaust mode, and the above-mentioned description about exhaust is only schematically, for realizing the alternate manner starting cylinder 22 and the smooth exhaust of transfiguration cylinder 24, is all applicable to the present invention.
About startup cylinder 22, be understandable that, start in cylinder 22 and be formed with intakeport, relief opening and vane slot, intakeport is communicated with the compression chamber in startup cylinder 22 with relief opening, and intakeport is used for air-breathing, and relief opening is used for exhaust, exhaust ports can be provided with outlet valve, when air pressure in the compression chamber of transfiguration cylinder 22 reaches scheduled pressure value, outlet valve will be opened, and start cylinder 22 and be exhausted.
The slide plate starting cylinder 22 is located in the vane slot of startup cylinder 22, the tip of this slide plate can extend into and starts in cylinder 22 and coordinate with the outer circumferential face of the piston started in cylinder 22, such as according to some embodiments of the present invention, the tip of this slide plate can be resisted against on the outer circumferential face of piston always.And for example, according to other embodiments of the present invention, the tip of this slide plate can be resisted against on the outer circumferential face of piston when starting cylinder 22 and running work, when starting cylinder 22 and not working, this slide plate can be accommodated in this vane slot thus to be separated with piston, and such piston idle running, does not compress refrigerant.Be appreciated that the tail end of the vane slot starting cylinder 22 is provided with sliding blade spring 221 and is communicated with the inner high back pressure of housing 1.
About transfiguration cylinder 24, be understandable that, intakeport, relief opening and vane slot is formed in transfiguration cylinder 24, intakeport is communicated with the compression chamber in transfiguration cylinder 24 with relief opening, and intakeport is used for air-breathing, and relief opening is used for exhaust, exhaust ports can be provided with outlet valve, when air pressure in the compression chamber of transfiguration cylinder 24 reaches scheduled pressure value, outlet valve will be opened, and transfiguration cylinder 24 is exhausted.
The slide plate of transfiguration cylinder 24 is located in the vane slot of transfiguration cylinder 24, the tip of this slide plate can to extend in transfiguration cylinder 24 and to coordinate with the outer circumferential face of the piston in transfiguration cylinder 24, such as according to some embodiments of the present invention, the tip of this slide plate can be resisted against on the outer circumferential face of piston when transfiguration cylinder 24 runs work, when transfiguration cylinder 24 does not work, this slide plate can be accommodated in this vane slot thus to be separated with piston, and the piston idle running in such transfiguration cylinder 24, does not compress refrigerant.Be appreciated that the tail end of the vane slot of transfiguration cylinder 24 does not arrange sliding blade spring 221, and the afterbody of the vane slot of transfiguration cylinder 24 directly can be communicated with housing 1 inside, can certainly be sealing.
With reference to shown in Fig. 1, according to some embodiments of the present invention, the intakeport starting cylinder 22 is suitable for being connected with exhaust or air-breathing.
Here, it should be noted that, in compressor 100 field, " air-breathing " refers to low-pressure gas, can be such as by throttling arrangement reducing pressure by regulating flow after refrigerant, therefore, start the intakeport of cylinder 22 and be connected with air-breathing and can be understood as low pressure refrigerant and entered into by intakeport and start in cylinder 22, because the pressure of low pressure refrigerant is very low, therefore the piston started in cylinder 22 can compress it and become high pressure refrigerant.
Equally, in compressor 100 field, " exhaust " refers to pressurized gas, can be such as not by the refrigerant of throttling arrangement reducing pressure by regulating flow, as being the high pressure gas that compressor 100 housing 1 top vent pipe is discharged, therefore, the intakeport starting cylinder 22 is connected with exhaust and can be understood as high pressure refrigerant and to be entered into by intakeport and start in cylinder 22, because the pressure of this exhaust is high, therefore enter in exhaust and start after in cylinder 22, the outlet valve starting the exhaust ports of cylinder 22 will be opened, thus exhaust, in other words, when entering exhaust in startup cylinder 22, the piston started in cylinder 22 cannot compress it, thus the piston starting cylinder 22 is in idling conditions.
Should be appreciated that the pressure of pressure much larger than air-breathing of exhaust.And for transfiguration cylinder 24, it is with air-breathing or be vented the implication that is connected with above-mentioned substantially identical, in the description therefore below about " being connected with air-breathing " or " being connected with being vented ", if there is no specified otherwise, be all understood in this way.
In this embodiment, start that afterbody and the housing 1 of the vane slot of cylinder 22 is inner to be communicated with, be wherein understandable that, in compressor field, the afterbody of vane slot refers to the corresponding compression chamber of distance of vane slot one end far away.Be provided with sliding blade spring 221 in this vane slot for pushing against the slide plate in vane slot, therefore the tail end of slide plate is subject to the elastic force of exhaust pressure and sliding blade spring 221.
Like this, when starting cylinder 22 and being connected with air-breathing, this transfiguration cylinder 24 is similar to traditional single cylinder compressor structure, can compress air-breathing, now starts cylinder 22 and normally runs work.And when starting cylinder 22 and being connected with exhaust, exhaust enters into and starts after in cylinder 22, the outlet valve starting the exhaust ports of cylinder 22 can be opened, thus refrigerant is discharged from exhaust ports, and the piston started in cylinder 22 dallies not compression refrigerant, and now startup cylinder 22 does not work.
Equally, in this embodiment, the intakeport of transfiguration cylinder 24 is suitable for being connected with exhaust or air-breathing, and the afterbody of the vane slot of transfiguration cylinder 24 is provided with the first magnetic part 241 being suitable for the slide plate adsorbing transfiguration cylinder 24, and the afterbody of the vane slot of transfiguration cylinder 24 is communicated with housing 1 inside.
Like this, the afterbody of the vane slot of transfiguration cylinder 24 is exhaust pressure, when the intakeport of transfiguration cylinder 24 is connected with air-breathing, piston in transfiguration cylinder 24 can compress the refrigerant in transfiguration cylinder 24, and when the intakeport of transfiguration cylinder 24 is connected with exhaust, pressure in transfiguration cylinder 24 is substantially equal with the afterbody pressure of vane slot, now under the effect of the first magnetic part 241, the slide plate of transfiguration cylinder 24 will be attracted on the first magnetic part 241 of vane slot afterbody, thus the slide plate of transfiguration cylinder 24 is separated with the outer circumferential face of corresponding piston, the piston idle running of transfiguration cylinder 24, transfiguration cylinder 24 does not work.
Should be understood that, the magnetic force of the first magnetic part 241 is less, and this magnetic force should be less than the pressure difference of exhaust and air-breathing.In other words, be connected with air-breathing at transfiguration cylinder 24, its magnetic force is much smaller than the pressure difference acted on slide plate.And when transfiguration cylinder 24 is connected with exhaust, slide plate pressure difference is zero substantially, the now adsorbable slide plate of the first magnetic part 241 thus to make slide plate be accommodated in vane slot interior to be separated with piston.
According to some embodiments of the present invention, because the magnetic force of the slide plate of the first magnetic part 241 pairs of transfiguration cylinders 24 is less, therefore the first magnetic part 241 can be permanent magnet.Certainly, according to other embodiments of the present invention, the first magnetic part 241 also can be the electromagnet that magnetic force is less.
Further, as shown in Figure 1, rotary compressor 100 can also comprise the first startup cylinder pressure control device 31 and the first transfiguration cylinder pressure control device 41, first startup cylinder pressure control device 31 is connected with the intakeport starting cylinder 22 intakeport be suitable for starting cylinder 22 and is communicated with exhaust or air-breathing, and the first transfiguration cylinder pressure control device 41 is connected with the intakeport of transfiguration cylinder 24 to be suitable for the intakeport of transfiguration cylinder 24 to be connected with exhaust or air-breathing.
According to some embodiments of the present invention, the first startup cylinder pressure control device 31 and the first transfiguration cylinder pressure control device 41 can be accumulators.
Further, rotary compressor 100 also comprises two three-way pipes, and first starts cylinder pressure control device 31 is connected with an interface of a three-way pipe, and two other interface of this three-way pipe is suitable for being connected with air-breathing or be vented respectively.Equally, the first transfiguration cylinder pressure control device 41 is connected with an interface of another three-way pipe, and two other interface of this three-way pipe is connected with being vented with air-breathing.
According to some embodiments of the present invention, the intakeport starting cylinder 22 is only suitable for being connected with air-breathing, and the afterbody starting the vane slot of cylinder 22 is communicated with the inner high back pressure of housing 1, and the afterbody of this vane slot is provided with the electromagnet 222 being suitable for adsorbing the slide plate starting cylinder 22.
When electromagnet 222 is energized, the slide plate of the adsorbable startup cylinder 22 of electromagnet 222.Particularly, because the vane slot afterbody starting cylinder 22 is exhaust pressure, and the intakeport starting cylinder 22 is only connected with air-breathing, therefore start the slide plate of cylinder 22 can be subject to the elastic force of its sliding blade spring 221 and row's pressure of inspiration(Pi) poor, under the effect of these two power, slide plate can against the outer circumferential face of piston, thus starts cylinder 22 and can normally work.But after electromagnet 222 is energized, the magnetic attraction of electromagnet 222 to the slide plate starting cylinder 22 will overcome above-mentioned two power, thus slide plate is forced absorption thereon, slide plate entirety to be accommodated in vane slot thus to be separated with piston, now starts the piston idle running in cylinder 22, starts cylinder 22 and do not work.
In brief, in these some embodiments, by arranging the very large electromagnet of magnetic force 222, thus slide plate can be forced to be separated with piston, thus realize the start and stop starting cylinder 22.
Equally, in this embodiment, the intakeport of transfiguration cylinder 24 is suitable for being connected with exhaust or air-breathing, and the afterbody of the vane slot of transfiguration cylinder 24 is provided with the first magnetic part 241 being suitable for the slide plate adsorbing transfiguration cylinder 24, and the afterbody of the vane slot of transfiguration cylinder 24 is communicated with housing 1 inside.
Like this, the afterbody of the vane slot of transfiguration cylinder 24 is exhaust pressure, when the intakeport of transfiguration cylinder 24 is connected with air-breathing, piston in transfiguration cylinder 24 can compress the refrigerant in transfiguration cylinder 24, and when the intakeport of transfiguration cylinder 24 is connected with exhaust, pressure in transfiguration cylinder 24 is substantially equal with the afterbody pressure of vane slot, now under the effect of the first magnetic part 241, the slide plate of transfiguration cylinder 24 will be attracted on the first magnetic part 241 of vane slot afterbody, thus the slide plate of transfiguration cylinder 24 is separated with the outer circumferential face of corresponding piston, the piston idle running of transfiguration cylinder 24, transfiguration cylinder 24 does not work.
Should be understood that, the magnetic force of the first magnetic part 241 is less, and this magnetic force should be less than the pressure difference of exhaust and air-breathing.In other words, be connected with air-breathing at transfiguration cylinder 24, its magnetic force is much smaller than the pressure difference acted on slide plate.And when transfiguration cylinder 24 is connected with exhaust, slide plate pressure difference is zero substantially, the now adsorbable slide plate of the first magnetic part 241 thus to make slide plate be accommodated in vane slot interior to be separated with piston.
According to some embodiments of the present invention, because the magnetic force of the first magnetic part 241 pairs of transfiguration cylinders 24 is less, therefore the first magnetic part 241 can be permanent magnet.Certainly, according to other embodiments of the present invention, the first magnetic part 241 also can be the electromagnet that magnetic force is less.
In addition, in these some embodiments, the magnetic attraction of the slide plate of the first magnetic part 241 pairs of transfiguration cylinders 24 is much smaller than electromagnet 222 to the magnetic attraction of slide plate starting cylinder 22, and this is obviously easy understand for the ordinary skill in the art.
Further, in these some embodiments, rotary compressor 100 can also comprise the first transfiguration cylinder pressure control device 41, first transfiguration cylinder pressure control device 41 and be connected with the intakeport of transfiguration cylinder 24 to be suitable for the intakeport of transfiguration cylinder 24 to be connected with exhaust or air-breathing.Alternatively, the first transfiguration cylinder pressure control device 41 can be accumulator.
Further, rotary compressor 100 also comprises a three-way pipe, and the first transfiguration cylinder pressure control device 41 is connected with an interface of this three-way pipe, and two other interface of this three-way pipe is connected with being vented with air-breathing.
In these some embodiments, electromagnet 222 is located at the inside and/or outside that start cylinder 22.According to a further embodiment of the invention, electromagnet 222 is positioned at top and/or the below of the sliding blade spring 221 starting cylinder 22.
It should be noted that, due to the afterbody starting the vane slot of cylinder 22 in these some embodiments be provided with electromagnet 222 for the slide plate and the piston that control to start cylinder 22 against be separated, thus require that electromagnet 222 has larger magnetic attraction, this magnetic attraction should much larger than exhaust pressure, if but magnetic attraction is excessive, this magnetic attraction may affect the slide plate of transfiguration cylinder 24, thus the slide plate of transfiguration cylinder 24 is separated with corresponding piston.
Therefore, for the magnetic attraction of the electromagnet 222 started in cylinder 22, following relation should be met:
F1>P1×S1+F’
F1---electromagnet 222 is to the slide plate magnetic pull (unit: N) starting cylinder 22
P1---compressor 100 Maximum differential pressure (unit: MPa)
S1---start the slide plate afterbody sectional area (unit: mm2) of cylinder 22
F '---start the sliding blade spring 221 of cylinder 22 to the elastic force (unit: N) of the slide plate of startup cylinder 22
The magnetic attraction of electromagnet 222 also should meet simultaneously:
F2<P2×S1
The slide plate magnetic pull (unit: N) of F2---electromagnet 222 pairs of transfiguration cylinders 24
P2---compressor 100 Minimum differntial pressure (unit: MPa)
The slide plate afterbody sectional area (unit: mm2) of S2---transfiguration cylinder 24
(there is no sliding blade spring in transfiguration cylinder 24, therefore do not need to overcome spring force)
Amid all these factors, when designing electromagnet 222, the magnetic attraction of electromagnet 222 must be made to start the slide plate absorption of cylinder 22, ensure that the slide plate of transfiguration cylinder 24 is not affected transfiguration cylinder 24 by adsorbing simultaneously again.And according to physical knowledge, electromagnet 222 to square being directly proportional of distance of magnet (slide plate) at magnetic flux and this point of certain point, therefore, allowing electromagnet 222 from transfiguration cylinder 24 slightly a little further, the impact of electromagnet 222 on transfiguration cylinder 24 slide plate can be made minimum.
Therefore, according to a preferred embodiment of the present invention, start cylinder 22 and be positioned at the top of intermediate clapboard 23, electromagnet 222 is one and is located at the inside that starts cylinder 22 and is positioned at the top of the sliding blade spring 221 starting cylinder 22.
And for example, according to a further advantageous embodiment of the invention, start the top that cylinder 22 is positioned at intermediate clapboard 23, electromagnet 222 is one and is located at the outside that starts cylinder 22 and is positioned at the top of sliding blade spring 221 starting cylinder 22, such as electromagnet 222 can be located at start cylinder 22 upper surface on and be positioned at directly over sliding blade spring 221.
For another example, alternatively, according to one embodiment of present invention, start cylinder 22 and be positioned at the top of intermediate clapboard 23, electromagnet 222 is one and is located at the inside that starts cylinder 22 and is positioned at the below of the sliding blade spring 221 starting cylinder 22.
For another example, alternatively, according to one embodiment of present invention, the top that cylinder 22 is positioned at intermediate clapboard 23 is started, electromagnet 222 is one and is located at the outside that starts cylinder 22 and is positioned at the top of sliding blade spring 221 starting cylinder 22, and such as electromagnet 222 can be located in intermediate clapboard 23.
For another example, alternatively, according to one embodiment of present invention, start cylinder 22 and be positioned at the top of intermediate clapboard 23, electromagnet 222 be two and be located at the inside that starts cylinder 22 respectively and be positioned at start cylinder 22 sliding blade spring 221 above and below.
For another example, alternatively, according to one embodiment of present invention, start the top that cylinder 22 is positioned at intermediate clapboard 23, electromagnet 222 is two, one of them is located at the outside that starts cylinder 22 and is positioned at the top of sliding blade spring 221 starting cylinder 22, and another is located at the inside that starts cylinder 22 and is positioned at the below of the sliding blade spring 221 starting cylinder 22.
For another example, alternatively, according to one embodiment of present invention, start the top that cylinder 22 is positioned at intermediate clapboard 23, electromagnet 222 is two, one of them is located at the inside that starts cylinder 22 and is positioned at the top of sliding blade spring 221 starting cylinder 22, and another is located at the outside that starts cylinder 22 and is positioned at the below of the sliding blade spring 221 starting cylinder 22, as being located in intermediate clapboard 23.
For another example, alternatively, according to one embodiment of present invention, start the top that cylinder 22 is positioned at intermediate clapboard 23, electromagnet 222 be two and be located at respectively start cylinder 22 outside and be positioned at start cylinder 22 sliding blade spring 221 above and below, particularly, be positioned on the upper surface that can be arranged on startup cylinder 22 of top, what be positioned at below can be arranged on intermediate clapboard 23.
The following describes and start cylinder 22 and be located at situation below intermediate clapboard 23.
According to one embodiment of present invention, start cylinder 22 and be positioned at the below of intermediate clapboard 23, electromagnet 222 is one and is located at the inside that starts cylinder 22 and is positioned at the top of the sliding blade spring 221 starting cylinder 22.
And for example, according to one embodiment of present invention, start cylinder 22 and be positioned at the below of intermediate clapboard 23, electromagnet 222 is one and is located at the outside that starts cylinder 22 and is positioned at the top of the sliding blade spring 221 starting cylinder 22, and such as electromagnet 222 can be located in intermediate clapboard 23.
For another example, according to a preferred embodiment of the present invention, start cylinder 22 and be positioned at the below of intermediate clapboard 23, electromagnet 222 is one and is located at the inside that starts cylinder 22 and is positioned at the below of the sliding blade spring 221 starting cylinder 22.
For another example, according to a preferred embodiment of the present invention, start cylinder 22 and be positioned at the below of intermediate clapboard 23, electromagnet 222 is one and is located at the outside that starts cylinder 22 and is positioned at the below of the sliding blade spring 221 starting cylinder 22, such as electromagnet 222 can be located at start cylinder 22 lower surface on.
For another example, alternatively, according to one embodiment of present invention, start cylinder 22 and be positioned at the below of intermediate clapboard 23, electromagnet 222 be two and be located at the inside that starts cylinder 22 respectively and be positioned at start cylinder 22 sliding blade spring 221 above and below.
For another example, alternatively, according to one embodiment of present invention, start the below that cylinder 22 is positioned at intermediate clapboard 23, electromagnet 222 is two, one of them is located at the outside that starts cylinder 22 and is positioned at the top of sliding blade spring 221 starting cylinder 22, and as being located in intermediate clapboard 23, another is located at the inside that starts cylinder 22 and is positioned at the below of the sliding blade spring 221 starting cylinder 22.
For another example, alternatively, according to one embodiment of present invention, start the below that cylinder 22 is positioned at intermediate clapboard 23, electromagnet 222 is two, one of them is located at the inside that starts cylinder 22 and is positioned at the top of sliding blade spring 221 starting cylinder 22, and another is located at the outside that starts cylinder 22 and is positioned at the below of the sliding blade spring 221 starting cylinder 22.
For another example, alternatively, according to one embodiment of present invention, start the below that cylinder 22 is positioned at intermediate clapboard 23, electromagnet 222 be two and be located at respectively start cylinder 22 outside and be positioned at start cylinder 22 sliding blade spring 221 above and below, particularly, what be positioned at top can be arranged on intermediate clapboard 23, is positioned at can being arranged on of below and starts below cylinder 22.
According to some embodiments of the present invention, as shown in Figures 2 and 3, the intakeport starting cylinder 22 is suitable for being connected with exhaust or air-breathing.The afterbody starting the vane slot of cylinder 22 is communicated with housing 1 inside, and be provided with sliding blade spring 221 in this vane slot for pushing against the slide plate in vane slot, therefore the tail end of slide plate is subject to the elastic force of exhaust pressure and sliding blade spring 221.
Like this, when starting cylinder 22 and being connected with air-breathing, this transfiguration cylinder 24 is similar to traditional single cylinder compressor structure, can compress air-breathing, now starts cylinder 22 and normally runs work.And when starting cylinder 22 and being connected with exhaust, exhaust enters into and starts after in cylinder 22, the outlet valve starting the exhaust ports of cylinder 22 can be opened, thus refrigerant is discharged from exhaust ports, and the piston started in cylinder 22 dallies not compression refrigerant, and now startup cylinder 22 does not work.
In these some embodiments, the intakeport of transfiguration cylinder 24 is only suitable for being connected with air-breathing, and afterbody and housing 1 internal partition of the vane slot of transfiguration cylinder 24 are left, and in other words, the vane slot of transfiguration cylinder 24 is not communicated with housing 1 exhaust gas inside pressure.Such as, rotary compressor 100 can comprise Sealing, and Sealing 52 is for keeping apart the vane slot of transfiguration cylinder 24 and housing 1 inside airtightly.Sealing 52 can be sealing plate.The afterbody of the vane slot of transfiguration cylinder 24 is provided with the second magnetic part 242 being suitable for the slide plate adsorbing transfiguration cylinder 24.
Rotary compressor 100 also comprises the second transfiguration cylinder pressure control device 42, second transfiguration cylinder pressure control device 42 is connected with the afterbody of the vane slot of transfiguration cylinder 24 to be suitable for the afterbody of the vane slot of transfiguration cylinder 24 to be connected with exhaust or air-breathing, in other words, second transfiguration cylinder pressure control device 42, for controlling the afterbody pressure of the vane slot of transfiguration cylinder 24, makes its pressure be exhaust pressure or pressure of inspiration(Pi).
Like this, because transfiguration cylinder 24 is only connected with air-breathing, therefore the refrigerant in transfiguration cylinder 24 is pressure of inspiration(Pi), when air-breathing is communicated with the afterbody of the vane slot of transfiguration cylinder 24 by the second transfiguration cylinder pressure control device 42, the slide plate pressure of transfiguration cylinder 24 is zero (not having sliding blade spring) substantially, and such second magnetic part 242 can by the absorption of this slide plate thereon, thus this slide plate can be accommodated in vane slot thus to be separated with piston, such piston idle running, thus transfiguration cylinder 24 does not work.
And when exhaust is communicated with the afterbody of the vane slot of transfiguration cylinder 24 by the second transfiguration cylinder pressure control device 42, under the effect of Suck and exhaust pressure difference, pushing and pressing (are overcome the magnetic force of the second magnetic part 242) by slide plate on the outer circumferential face of piston, thus piston can compress the low pressure refrigerant entered in transfiguration cylinder 24, transfiguration cylinder 24 normally runs work.
Should be understood that, the magnetic force of the second magnetic part 242 is less, and this magnetic force should be less than the pressure difference of exhaust and air-breathing.In other words, when air-breathing is communicated with the afterbody of the vane slot of transfiguration cylinder 24 by the second transfiguration cylinder pressure control device 42, the adsorbable slide plate of the second magnetic part 242 thus slide plate is accommodated in vane slot to be separated with piston.And when exhaust is communicated with the afterbody of the vane slot of transfiguration cylinder 24 by the second transfiguration cylinder pressure control device 42, pressure difference will overcome the suction of the second magnetic part 242, thus slide plate will be resisted against on the outer circumferential face of piston.
According to some embodiments of the present invention, because the magnetic force of the slide plate of the second magnetic part 242 pairs of transfiguration cylinders 24 is less, therefore the second magnetic part 242 can be permanent magnet.Certainly, according to other embodiments of the present invention, the second magnetic part 242 also can be the electromagnet that magnetic force is less.
Further, rotary compressor 100 can also comprise the second startup cylinder pressure control device 32, second and starts cylinder pressure control device 32 and be connected with the intakeport starting cylinder 22 intakeport be suitable for starting cylinder 22 and be communicated with exhaust or air-breathing.Alternatively, the second startup cylinder pressure control device 32 can be liquid-storage container.
Further, rotary compressor 100 also comprises two three-way pipes, and second starts cylinder pressure control device 32 is connected with an interface of a three-way pipe, and two other interface of this three-way pipe is suitable for being connected with air-breathing or be vented respectively.Equally, the second transfiguration cylinder pressure control device 42 is connected with an interface of another three-way pipe, and two other interface of this three-way pipe is connected with being vented with air-breathing.
According to some embodiments of the present invention, as shown in Fig. 4-Figure 19, the intakeport starting cylinder 22 is only suitable for being connected with air-breathing, and the afterbody starting the vane slot of cylinder 22 is communicated with the inner high back pressure of housing 1, and the afterbody of this vane slot is provided with the electromagnet 222 being suitable for adsorbing the slide plate starting cylinder 22.
When electromagnet 222 is energized, the slide plate of the adsorbable startup cylinder 22 of electromagnet 222.Particularly, because the vane slot afterbody starting cylinder 22 is exhaust pressure, and the intakeport starting cylinder 22 is only connected with air-breathing, therefore start the slide plate of cylinder 22 can be subject to the elastic force of its sliding blade spring 221 and row's pressure of inspiration(Pi) poor, under the effect of these two power, slide plate can against the outer circumferential face of piston, thus starts cylinder 22 and can normally work.
But after electromagnet 222 is energized, the magnetic attraction of electromagnet 222 to the slide plate starting cylinder 22 will overcome above-mentioned two power, thus slide plate is forced absorption thereon, slide plate entirety to be accommodated in vane slot thus to be separated with piston, now starts the piston idle running in cylinder 22, starts cylinder 22 and do not work.
In brief, in these some embodiments, by arranging the very large electromagnet of magnetic force 222, thus slide plate can be forced to be separated with piston, thus realize the start and stop starting cylinder 22.
The intakeport of transfiguration cylinder 24 is only suitable for being connected with air-breathing, and afterbody and housing 1 internal partition of the vane slot of transfiguration cylinder 24 are left, and in other words, the vane slot of transfiguration cylinder 24 is not communicated with housing 1 exhaust gas inside pressure.Such as, rotary compressor 100 also comprises Sealing, and Sealing is used for the vane slot of transfiguration cylinder 24 and housing 1 inside to keep apart airtightly.Sealing can be sealing plate.The afterbody of the vane slot of transfiguration cylinder 24 is provided with the second magnetic part 242 being suitable for the slide plate adsorbing transfiguration cylinder 24.
In these some embodiments, rotary compressor 100 also comprises the second transfiguration cylinder pressure control device 42, second transfiguration cylinder pressure control device 42 is connected with the afterbody of the vane slot of transfiguration cylinder 24 to be suitable for the afterbody of the vane slot of transfiguration cylinder 24 to be connected with exhaust or air-breathing, in other words, second transfiguration cylinder pressure control device 42, for controlling the afterbody pressure of the vane slot of transfiguration cylinder 24, makes its pressure be exhaust pressure or pressure of inspiration(Pi).
Like this, because transfiguration cylinder 24 is only connected with air-breathing, therefore the refrigerant in transfiguration cylinder 24 is pressure of inspiration(Pi), when air-breathing is communicated with the afterbody of the vane slot of transfiguration cylinder 24 by the second transfiguration cylinder pressure control device 42, the slide plate pressure of transfiguration cylinder 24 is zero (not having sliding blade spring) substantially, and this slide plate can adsorb thereon by such second magnetic part 242, thus this slide plate can be accommodated in vane slot to be separated with piston, such piston idle running, thus transfiguration cylinder 24 does not work.
And when exhaust is communicated with the afterbody of the vane slot of transfiguration cylinder 24 by the second transfiguration cylinder pressure control device 42, under the effect of Suck and exhaust pressure difference, pushing and pressing (are overcome the magnetic force of the second magnetic part 242) by slide plate on the outer circumferential face of piston, thus piston can compress the refrigerant entered in transfiguration cylinder 24, transfiguration cylinder 24 normally runs work.
Should be understood that, the magnetic force of the second magnetic part 242 is less, and this magnetic force should be less than the pressure difference of exhaust and air-breathing.In other words, when air-breathing is communicated with the afterbody of the vane slot of transfiguration cylinder 24 by the second transfiguration cylinder pressure control device 42, the adsorbable slide plate of the second magnetic part 242 thus slide plate is accommodated in vane slot to be separated with piston.And when exhaust is communicated with the afterbody of the vane slot of transfiguration cylinder 24 by the second transfiguration cylinder pressure control device 42, pressure difference will overcome the suction of the second magnetic part 242, thus slide plate will be resisted against on the outer circumferential face of piston.
According to some embodiments of the present invention, because the magnetic force of the slide plate of the second magnetic part 242 pairs of transfiguration cylinders 24 is less, therefore the second magnetic part 242 can be permanent magnet.Certainly, according to other embodiments of the present invention, the second magnetic part 242 also can be the electromagnet that magnetic force is less.
In addition, in these some embodiments, the magnetic attraction of the slide plate of the second magnetic part 242 pairs of transfiguration cylinders 24 is much smaller than electromagnet 222 to the magnetic attraction of slide plate starting cylinder 22, and this is obviously easy understand for the ordinary skill in the art.
Further, in these some embodiments, rotary compressor 100 also comprises a three-way pipe, and the second transfiguration cylinder pressure control device 42 is connected with an interface of this three-way pipe, and two other interface of three-way pipe is suitable for being connected with being vented with air-breathing respectively.
In these some embodiments, electromagnet 222 is located at the inside and/or outside that start cylinder 22.According to a further embodiment of the invention, electromagnet 222 is positioned at top and/or the below of the sliding blade spring 221 starting cylinder 22.
It should be noted that, due to the afterbody starting the vane slot of cylinder 22 in these some embodiments be provided with electromagnet 222 for the slide plate and the piston that control to start cylinder 22 against be separated, thus require that electromagnet 222 has larger magnetic attraction, this magnetic attraction should much larger than exhaust pressure, if but magnetic attraction is excessive, this magnetic attraction may affect the slide plate of transfiguration cylinder 24, thus the slide plate of transfiguration cylinder 24 is separated with corresponding piston.
Therefore, for the magnetic attraction of electromagnet 222, following relation should be met:
F1>P1×S1+F’
F1---electromagnet 222 is to the slide plate magnetic pull (unit: N) starting cylinder 22
P1---compressor 100 Maximum differential pressure (unit: MPa)
S1---start the slide plate afterbody sectional area (unit: mm2) of cylinder 22
F '---start the sliding blade spring 221 of cylinder 22 to the elastic force (unit: N) of the slide plate of startup cylinder 22
The magnetic attraction of electromagnet 222 also should meet simultaneously:
F2<P2×S1
The slide plate magnetic pull (unit: N) of F2---electromagnet 222 pairs of transfiguration cylinders 24
P2---compressor 100 Minimum differntial pressure (unit: MPa)
The slide plate afterbody sectional area (unit: mm2) of S2---transfiguration cylinder 24
(there is no sliding blade spring in transfiguration cylinder 24, therefore do not need to overcome spring force)
Amid all these factors, when designing electromagnet 222, the magnetic attraction of electromagnet 222 must be made to start the slide plate absorption of cylinder 22, ensure that the slide plate of transfiguration cylinder 24 is not affected transfiguration cylinder 24 by adsorbing simultaneously again.And according to physical knowledge, electromagnet 222 to square being directly proportional of distance of magnet (slide plate) at magnetic flux and this point of certain point, therefore allowing electromagnet 222 from transfiguration cylinder 24 slightly a little further, the impact of electromagnet 222 on transfiguration cylinder 24 slide plate can be made minimum.
Therefore, according to a preferred embodiment of the present invention, with reference to shown in Fig. 4, start the top that cylinder 22 is positioned at intermediate clapboard 23, electromagnet 222 is one and is located at the inside that starts cylinder 22 and is positioned at the top of the sliding blade spring 221 starting cylinder 22.
And for example, according to a further advantageous embodiment of the invention, with reference to shown in Fig. 5, start the top that cylinder 22 is positioned at intermediate clapboard 23, electromagnet 222 is one and is located at the outside that starts cylinder 22 and is positioned at the top of sliding blade spring 221 starting cylinder 22, such as electromagnet 222 can be located at start cylinder 22 upper surface on and be positioned at directly over sliding blade spring 221.
For another example, alternatively, according to one embodiment of present invention, with reference to shown in Fig. 6, start the top that cylinder 22 is positioned at intermediate clapboard 23, electromagnet 222 is one and is located at the inside that starts cylinder 22 and is positioned at the below of the sliding blade spring 221 starting cylinder 22.
For another example, alternatively, according to one embodiment of present invention, with reference to shown in Fig. 7, start cylinder 22 and be positioned at the top of intermediate clapboard 23, electromagnet 222 is one and is located at the outside that starts cylinder 22 and is positioned at the top of the sliding blade spring 221 starting cylinder 22, and such as electromagnet 222 can be located in intermediate clapboard 23.
For another example, alternatively, according to one embodiment of present invention, with reference to shown in Fig. 8, start the top that cylinder 22 is positioned at intermediate clapboard 23, electromagnet 222 be two and be located at the inside that starts cylinder 22 respectively and be positioned at start cylinder 22 sliding blade spring 221 above and below.
For another example, alternatively, according to one embodiment of present invention, with reference to shown in Fig. 9, start the top that cylinder 22 is positioned at intermediate clapboard 23, electromagnet 222 is two, and one of them is located at the outside that starts cylinder 22 and is positioned at the top of sliding blade spring 221 starting cylinder 22, and another is located at the inside that starts cylinder 22 and is positioned at the below of the sliding blade spring 221 starting cylinder 22.
For another example, alternatively, according to one embodiment of present invention, with reference to shown in Figure 10, start cylinder 22 and be positioned at the top of intermediate clapboard 23, electromagnet 222 is two, and one of them is located at the inside that starts cylinder 22 and is positioned at the top of the sliding blade spring 221 starting cylinder 22, another is located at the outside that starts cylinder 22 and is positioned at the below of sliding blade spring 221 starting cylinder 22, as being located in intermediate clapboard 23.
For another example, alternatively, according to one embodiment of present invention, with reference to shown in Figure 11, start cylinder 22 and be positioned at the top of intermediate clapboard 23, electromagnet 222 be two and be located at the outside that starts cylinder 22 respectively and be positioned at start cylinder 22 sliding blade spring 221 above and below, particularly, be positioned on the upper surface that can be arranged on startup cylinder 22 of top, what be positioned at below can be arranged on intermediate clapboard 23.
The following describes and start cylinder 22 and be located at situation below intermediate clapboard 23.
According to one embodiment of present invention, with reference to shown in Figure 12, start the below that cylinder 22 is positioned at intermediate clapboard 23, electromagnet 222 is one and is located at the inside that starts cylinder 22 and is positioned at the top of the sliding blade spring 221 starting cylinder 22.
And for example, according to one embodiment of present invention, with reference to shown in Figure 13, start the below that cylinder 22 is positioned at intermediate clapboard 23, electromagnet 222 is one and is located at the outside that starts cylinder 22 and is positioned at the top of sliding blade spring 221 starting cylinder 22, and such as electromagnet 222 can be located in intermediate clapboard 23.
For another example, according to a preferred embodiment of the present invention, with reference to shown in Figure 14, start the below that cylinder 22 is positioned at intermediate clapboard 23, electromagnet 222 is one and is located at the inside that starts cylinder 22 and is positioned at the below of the sliding blade spring 221 starting cylinder 22.
For another example, according to a further advantageous embodiment of the invention, with reference to shown in Figure 15, start the below that cylinder 22 is positioned at intermediate clapboard 23, electromagnet 222 is one and is located at the outside that starts cylinder 22 and is positioned at the below of sliding blade spring 221 starting cylinder 22, such as electromagnet 222 can be located at start cylinder 22 lower surface on or be located in Sealing 52.
For another example, alternatively, according to one embodiment of present invention, with reference to shown in Figure 19, start the below that cylinder 22 is positioned at intermediate clapboard 23, electromagnet 222 be two and be located at the inside that starts cylinder 22 respectively and be positioned at start cylinder 22 sliding blade spring 221 above and below.
For another example, alternatively, according to one embodiment of present invention, with reference to shown in Figure 18, start cylinder 22 and be positioned at the top of intermediate clapboard 23, electromagnet 222 is two, and one of them is located at the outside that starts cylinder 22 and is positioned at the top of the sliding blade spring 221 starting cylinder 22, as being located in intermediate clapboard 23, another is located at the inside that starts cylinder 22 and is positioned at the below of sliding blade spring 221 starting cylinder 22.
For another example, alternatively, according to one embodiment of present invention, with reference to shown in Figure 17, start the top that cylinder 22 is positioned at intermediate clapboard 23, electromagnet 222 is two, and one of them is located at the inside that starts cylinder 22 and is positioned at the top of sliding blade spring 221 starting cylinder 22, and another is located at the outside that starts cylinder 22 and is positioned at the below of the sliding blade spring 221 starting cylinder 22.
For another example, alternatively, according to one embodiment of present invention, with reference to shown in Figure 16, start cylinder 22 and be positioned at the top of intermediate clapboard 23, electromagnet 222 be two and be located at the outside that starts cylinder 22 respectively and be positioned at start cylinder 22 sliding blade spring 221 above and below, particularly, what be positioned at top can be arranged on intermediate clapboard 23, is positioned at can being arranged on of below and starts below cylinder 22.
To sum up, in general, rotary compressor 100 according to some preferred embodiments of the invention, there are three rank transfiguration functions, its structure is close with traditional two rank variable volume compressors, manufacturing process is simple, but has more cold to select than two rank variable volume compressors, particularly selects minimum injection rate greatly can improve travelling comfort and power saving more when low-load.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.In addition, the different embodiment described in this specification or example can carry out engaging and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.

Claims (4)

1. a rotary compressor, is characterized in that, comprising:
Housing;
Drive motor, described drive motor is located in described housing;
Compressing mechanism, described compressing mechanism comprises startup cylinder and transfiguration cylinder, wherein described startup cylinder and/or described transfiguration cylinder operation work when described rotary compressor work;
Be folded with intermediate clapboard between described startup cylinder and described transfiguration cylinder, one of described startup cylinder and described transfiguration cylinder be positioned at described intermediate clapboard above and another is positioned at below described intermediate clapboard;
The intakeport of described startup cylinder is suitable for being connected with exhaust or air-breathing, and the afterbody of the vane slot of described startup cylinder is communicated with described enclosure interior;
The intakeport of described transfiguration cylinder is suitable for being connected with exhaust or air-breathing, and the afterbody of the vane slot of described transfiguration cylinder is provided with the first magnetic part being suitable for the slide plate adsorbing described transfiguration cylinder, and the afterbody of the vane slot of described transfiguration cylinder is communicated with described enclosure interior.
2. rotary compressor according to claim 1, it is characterized in that, also comprise: first starts cylinder pressure control device and the first transfiguration cylinder pressure control device, described first startup cylinder pressure control device is connected with the intakeport of described startup cylinder the intakeport be suitable for described startup cylinder and is connected with exhaust or air-breathing, and described first transfiguration cylinder pressure control device is connected with the intakeport of described transfiguration cylinder the intakeport be suitable for described transfiguration cylinder and is connected with exhaust or air-breathing.
3. rotary compressor according to claim 2, it is characterized in that, also comprise: three-way pipe, described first starts cylinder pressure control device is connected with an interface of a described three-way pipe respectively with described first transfiguration cylinder pressure control device, and two other interface of described three-way pipe is suitable for being communicated with air-breathing and exhaust respectively.
4. rotary compressor according to claim 1, is characterized in that, described first magnetic part is permanent magnet or electromagnet.
CN201310473535.6A 2013-10-11 2013-10-11 Rotary compressor Active CN103557159B (en)

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CN105805003B (en) * 2016-03-04 2018-03-06 广东美芝制冷设备有限公司 Multi-cylinder rotary compressor and rotary compressor
CN106016806A (en) * 2016-05-18 2016-10-12 广东美芝制冷设备有限公司 Refrigerating plant
CN106016807B (en) * 2016-05-18 2019-08-02 广东美芝制冷设备有限公司 Refrigerating plant
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