CN103557157A - Variable-capacity compressor and air-conditioning system - Google Patents
Variable-capacity compressor and air-conditioning system Download PDFInfo
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- CN103557157A CN103557157A CN201310432903.2A CN201310432903A CN103557157A CN 103557157 A CN103557157 A CN 103557157A CN 201310432903 A CN201310432903 A CN 201310432903A CN 103557157 A CN103557157 A CN 103557157A
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Abstract
The invention discloses a variable-capacity compressor and an air-conditioning system. The compressor comprises a closed housing in which a motor assembly and a compression pump assembly are arranged; the compression pump assembly comprise a cylinder, a roller arranged in the cylinder, and an upper flange and a lower flange respectively arranged at the two ends of the cylinder, wherein the cylinder is provided with a suction opening; the compressor also comprises a variable-capacity return path communicated with the inner cavity of the cylinder and the suction opening, a plunger hole arranged on the cylinder and communicated with the variable-capacity return path, a plunger arranged in the plunger hole and capable of having reciprocating motion in the plunger hole along the plunger hole axis for opening or closing the variable-capacity return path, and an air-pressure control path communicated with the plunger hole; and the air-pressure control path is connected with a control pipe externally connected with a high-pressure air resource, and high-pressure air is introduced or not introduced to the air-pressure control path through the control pipe controlled by a control valve. In the air-conditioning system, a pipeline is arranged between an exhaust pipe and a four-way valve of the compressor and is connected to the control pipe. The variable-capacity compressor has the characteristics of being compact in structure, convenient to install on an air-conditioner outdoor unit, and low in cost.
Description
Technical field
The invention belongs to Compressor Technology field, relate in particular to a kind of variable-displacement rotary compressor and air-conditioning system.
Background technique
Along with the raising that people require quality of life, also more and more higher to the requirement of the quality of air conditioning and comfort level; Except requiring air-conditioning to have good refrigeration performance, to high performance heating capacity, the heating capacity particularly adapting under different working conditions also becomes the target of pursuing in industry.As everyone knows, compressor is the heart of air-conditioning, and the cooling and heating ability of compressor plays decisive role to the cooling and heating ability of air-conditioning.In order to meet the air conditioner refrigerating having adapted under different working conditions, heat needs, variable conpacitance compressor arises at the historic moment.
Variable conpacitance compressor, can export the compressor of two or more discharge capacity exactly.Variable conpacitance compressor can come fulfillment capability to regulate by changing air displacement volume, by varying capacity technology, makes compressor can export multiple discharge capacity, and the air conditioner refrigerating adapting under different working conditions heats needs.For single cylinder compressor, in order to realize the change of air displacement, conventionally way is to reduce the volume of the crescent moon compression chamber of cylinder, make compressor reduce compression, to export a kind of discharge capacity less than former discharge capacity, Normal squeezing chamber is between 330 ° of 35 ° of intakeport upper ends to cylinder relief openings of cutting sth. askew, perforate in rotation initial stage (in 135 °) low-pressure cavity, compression chamber is communicated with the low voltage terminal of gas-liquid separator or intakeport, roller does not produce compression while rolling through the compression chamber not sealing, therefore discharge capacity diminishes, and exports little discharge capacity; When the perforate of low-pressure cavity is sealed, volume of cylinder is consistent with design volume, and compressor becomes original discharge capacity again, thereby exports large discharge capacity.
At present, conventional variable conpacitance compressor is generally double pipe structure, one is transfiguration reflow pipe, a control valve for pressure switching, as the patent No. disclosed variable displacement rotary formula of the Chinese utility model patent compressor that is 201020609240.9, on the housing assembly that forms sealing cylinder chamber, plunger mechanism is set, plunger mechanism is acted on two tracheaes that are communicated to outside compressor, one tracheae is for controlling tracheae, one tracheae is backflow tracheae, backflow tracheae is connected to the suction loop of compressor, plunger mechanism is provided with the refluxing opening connecting in cylinder chamber, controlling under tracheae gas pressure, refluxing opening in backflow tracheae in connected state or obstruct state.The variable conpacitance compressor of this employing double pipe structure, need on the housing of compressor, process two mounting holes, so that reflow pipe and control valve can pass, due to the close together of two mounting holes, when compressor housing punching, can influence each other, manufacturability is poor, and transfiguration reflow pipe is exposed at compressor housing outside outward, to a certain degree increasing unnecessary heat exchange, compressor arranges two-way pipeline outward simultaneously, and also inconvenient compressor is installed on air-conditioning outer machine.
Summary of the invention
The object of this invention is to provide a kind of compact structure, be convenient on air-conditioning outer machine to install, variable conpacitance compressor and air-conditioning system cheaply.
To achieve these goals, the present invention takes following technical solution:
Variable conpacitance compressor, establishes electric machine assembly and the enclosing housing that compresses pump assembly in comprising, described compression pump assembly comprises cylinder, is arranged at the roller in cylinder, is arranged at upper flange and the lower flange at cylinder two ends, on described cylinder, is provided with intakeport; The transfiguration return flow line being connected with described cylinder inner cavity and described intakeport, is arranged at the plunger hole on described cylinder, and described plunger hole is communicated with described transfiguration return flow line; Be arranged at the plunger in described plunger hole, described plunger can move back and forth along plunger hole axis in plunger hole, thereby opens or closes described transfiguration return flow line; The air pressure control channel being communicated with described plunger hole, described air pressure control channel is connected with the control valve of external high-pressure air source, and described control valve is controlled to passing in described air pressure control channel or disconnecting pressurized gas by control valve.
Preferably, described transfiguration return flow line is positioned at upper-end surface or the lower end surface of described cylinder.
Preferably, the axis of described plunger hole is parallel to the axis of described cylinder.
Preferably, described transfiguration return flow line is positioned at described cylinder lower end surface, and described transfiguration return flow line is connected with described plunger hole bottom, and described air pressure control channel is communicated with described plunger hole middle part or top, and described plunger base arranges thrust spring.
Preferably, be provided with the air-conditioning system of aforementioned variable conpacitance compressor, comprise the compressor, four-way valve, indoor heat converter, throttling arrangement, one-way valve and the outdoor heat converter that by pipeline, connect, between the outlet pipe of compressor and four-way valve, a pipeline is set and is connected to described control valve.
The transfiguration return flow line that the present invention is communicated with by being arranged at cylinder inner cavity and intakeport, utilize plunger mechanism to control the on/off of transfiguration return flow line, to change the swept volume of cylinder, and the single control tubulation that is communicated with the high pressure gas end of compressor of employing is controlled the motion of plunger, make compressor arrangement compacter, be convenient to the installation on air-conditioning outer machine, reduced by a reflow pipe simultaneously, be conducive to reduce costs.
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of the invention;
Fig. 2 is the schematic diagram of the present invention when small displacement working state;
Fig. 3 is the partial cutaway schematic along air pressure control channel axis in Fig. 2;
Fig. 4 is the schematic diagram of the present invention when large discharge capacity working state;
Fig. 5 is the partial cutaway schematic along air pressure control channel axis in Fig. 4;
Fig. 6 is the schematic diagram of air conditioner circulating system of the present invention.
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in more detail.
Embodiment
As shown in Figure 1, variable conpacitance compressor of the present invention comprises enclosing housing 1, gas-liquid separator 2, sucking pipe 3, outlet pipe 4, electric machine assembly and compression pump assembly are installed in enclosing housing 1, electric machine assembly of the present invention comprises stator and rotor, compressor crank shaft is by rotor driven rotary, its structure is same as the prior art, at this, no longer goes to live in the household of one's in-laws on getting married and chats.
With reference to Fig. 2 and Fig. 3, compression pump assembly of the present invention comprises upper flange 5, lower flange 6, cylinder 7 and is fixed on the roller 9 on compressor crank shaft eccentric part, upper flange 5 and lower flange 6 are arranged in the both ends of the surface of cylinder 7, form an airtight cavity with cylinder 7, and roller 9 is in the interior rotation of cylinder 7.On cylinder 7 casing walls, be provided with intakeport a, the sucking pipe communicating with gas-liquid separator is connected in intakeport a place, and refrigeration agent enters cylinder 7 inner chambers from intakeport a through sucking pipe.On cylinder 7 casing walls, be provided with vane slot b, vane slot b is adjacent with intakeport a, slide plate 10 is placed in vane slot b, slide plate 10 presses to roller 9 under the elastic force effect that is arranged at the spring at its back (not shown), slide plate 10 ends contact with the outer surface of roller 9 all the time, thereby cylinder 7 inner chambers are divided into suction chamber A and pressing chamber B.Roller 9 under the drive of compressor crank shaft at the interior eccentric rotary of doing of cylinder 7, thereby to entering the refrigeration agent of cylinder 7 inner chambers, compress.
The air pressure control channel d that is processed with plunger hole c and is communicated with plunger hole c on cylinder 7 casing walls, air pressure control channel d is connected with external control valve 11, and control valve 11 is connected with high-pressure air source.The axis of the plunger hole c of the present embodiment is parallel to the axis of cylinder 7, and the angle between plunger hole c-axis line and vane slot b axis is 135 °, and 135 ° of pump housing rotation initial stages are less with intakeport pressure reduction.In plunger hole c, be provided with plunger 12, plunger 12 can move back and forth along the axis of plunger hole c in plunger hole c.Upper-end surface or lower end surface processing transfiguration back flash at cylinder 7, the transfiguration back flash processing of the present embodiment is in the lower end surface of cylinder 7, the common transfiguration return flow line e that forms of transfiguration back flash and lower flange 6, the outlet end e1 of transfiguration return flow line e is communicated with intakeport a, transfiguration mouth end e2 is communicated with cylinder 7 is interior through plunger hole c.The transfiguration back flash of the present embodiment is machined in the lower end surface of cylinder 7, so transfiguration return flow line e and plunger hole c bottom is communicated with, and air pressure control channel d is connected in the middle part of plunger hole c, or top.Plunger 12 bottoms are provided with thrust spring 13, and plunger 12 moves on can be under the elastic force T of thrust spring 13 effect.When plunger 12 moves back and forth in plunger hole c, can open or close transfiguration return flow line e.
As shown in Figure 6, air conditioner circulating system of the present invention comprises compressor 1A, four-way valve 8, indoor heat converter 15, throttling arrangement 16, one-way valve 17 and the outdoor heat converter 14 connecting by pipeline.When in Fig. 6, whole rocket head represents to freeze, refrigerant flows to, and when half of arrow represents refrigeration, refrigerant flows to.The annexation of air conditioner circulating system as shown in Figure 6, is the routine techniques of existing air-conditioning system, at this, does not do too much description.Between the outlet pipe 4 of compressor and four-way valve 8, the control valve 11 that a pipeline is connected to compressor is set, the high-pressure air source of control valve 11 is the high pressure air that outlet pipe 4 is discharged, the pipeline that should be connected with control valve is capillary tube pipeline, solenoid valve 18 is set on pipeline, by the ON/OFF of solenoid valve 18, carry out the on/off of pilot line, thereby make to pass in control valve 11 pressurized gas or do not pass into pressurized gas.
Below in conjunction with each accompanying drawing, working procedure of the present invention is described further:
During refrigeration, solenoid valve 18 cuts out, and control valve 11 is not communicated with 4 of outlet pipes, does not pass into pressurized gas in control valve 11, and as shown in Figures 2 and 3, plunger 12 overcomes low-pressure gas pressure P under the elastic force T of thrust spring 13 effect
lowmove up, thereby open transfiguration return flow line e, make to be communicated with between the intakeport a of cylinder inner cavity (suction chamber A) and cylinder 7, because the transfiguration mouth end e2 of transfiguration return flow line e does not seal in the scope of cylinder intakeport a, when roller 9 rolls through sealed cavity not, do not produce compression, so discharge capacity diminishes, realize the compression of small displacement volume.
While heating, solenoid valve 18 is opened, and control valve 11 is communicated with outlet pipe 4, in control valve 11, passes into pressurized gas, as shown in Figure 4 and Figure 5, and the high-pressure gas pressure P passing into from control valve 11
highovercome the elastic force T of thrust spring 13, plunger 12 is moved down, transfiguration return flow line e is closed, between the intakeport a of cylinder inner cavity (suction chamber A) and cylinder 7, be not communicated with, cylinder 7 normally moves, and roller 9 whole process are compressed, not transfiguration, realizes large displacement volume compression.
The present invention arranges transfiguration return flow line on cylinder, and one end, transfiguration return flow line is communicated with cylinder inner cavity, one end is communicated with intakeport, utilizes plunger to control the on/off of transfiguration return flow line, realizes the change of cylinder minimum cylinder volume.And the present invention adopts the design of single control tubulation, control valve is communicated with the high pressure gas end of compressor by pipeline, by the break-make of the electromagnetic valve pressurized gas on pipeline, thereby control the motion of plunger, make compressor arrangement compacter, improve reliability and the anufacturability of variable conpacitance compressor, be convenient to the installation on air-conditioning outer machine, reduced by a reflow pipe simultaneously, be conducive to reduce costs.
Certainly, technical conceive of the present invention is not limited in above-described embodiment, can also obtain many different concrete schemes according to design of the present invention, for example, thrust spring can be directly installed in spring mounting hole, also can in plunger hole bottom, be provided for the projection of mounting spring, by spring fitting on this projection; In addition, external air source of the present invention also can adopt independently high-pressure air source and low-pressure gas source, only corresponding pipeline need be coupled together by control valve, in addition, in the present invention, in order to simplify the internal structure of an organization, control valve is directly connected with high pressure gas end by the road, obtain pressurized gas, but control valve also can connect independently high-pressure air source, only corresponding pipeline need be coupled together by control valve, within all should being included in the scope described in technical solution of the present invention such as these changes and equivalent transformation.
Claims (5)
1. variable conpacitance compressor, establishes electric machine assembly and the enclosing housing that compresses pump assembly in comprising, described compression pump assembly comprises cylinder, is arranged at the roller in cylinder, is arranged at upper flange and the lower flange at cylinder two ends, on described cylinder, is provided with intakeport;
It is characterized in that: also comprise
The transfiguration return flow line being connected with described cylinder inner cavity and described intakeport;
Be arranged at the plunger hole on described cylinder, described plunger hole is communicated with described transfiguration return flow line;
Be arranged at the plunger in described plunger hole, described plunger can move back and forth along plunger hole axis in plunger hole, thereby opens or closes described transfiguration return flow line;
The air pressure control channel being communicated with described plunger hole, described air pressure control channel is connected with the control valve of external high-pressure air source, and described control valve is controlled to passing in described air pressure control channel or disconnecting pressurized gas by control valve.
2. variable conpacitance compressor as claimed in claim 1, is characterized in that: described transfiguration return flow line is positioned at upper-end surface or the lower end surface of described cylinder.
3. variable conpacitance compressor as claimed in claim 1 or 2, is characterized in that: the axis of described plunger hole is parallel to the axis of described cylinder.
4. variable conpacitance compressor as claimed in claim 1 or 2, it is characterized in that: described transfiguration return flow line is positioned at described cylinder lower end surface, described transfiguration return flow line is connected with described plunger hole bottom, described air pressure control channel is communicated with described plunger hole middle part or top, and described plunger base arranges thrust spring.
5. be provided with the air-conditioning system of the variable conpacitance compressor as described in claim 1 to 4 any one, comprise the compressor, four-way valve, indoor heat converter, throttling arrangement, one-way valve and the outdoor heat converter that by pipeline, connect, between the outlet pipe of compressor and four-way valve, a pipeline is set and is connected to described control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310432903.2A CN103557157A (en) | 2013-09-22 | 2013-09-22 | Variable-capacity compressor and air-conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310432903.2A CN103557157A (en) | 2013-09-22 | 2013-09-22 | Variable-capacity compressor and air-conditioning system |
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| Publication Number | Publication Date |
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| CN103557157A true CN103557157A (en) | 2014-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310432903.2A Pending CN103557157A (en) | 2013-09-22 | 2013-09-22 | Variable-capacity compressor and air-conditioning system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191375A (en) * | 2017-07-31 | 2017-09-22 | 广东美芝制冷设备有限公司 | Compression mechanism and refrigeration plant |
| CN109026690A (en) * | 2018-08-21 | 2018-12-18 | 珠海格力电器股份有限公司 | The pump housing and compressor with it |
| CN111794972A (en) * | 2020-07-27 | 2020-10-20 | 广东美芝制冷设备有限公司 | Cylinder assembly, compressor and refrigeration equipment |
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| CN201896754U (en) * | 2010-11-16 | 2011-07-13 | 珠海格力电器股份有限公司 | Variable-displacement rotary compressor and air conditioning system using same |
| KR20110098704A (en) * | 2011-08-24 | 2011-09-01 | 엘지전자 주식회사 | Air conditioning system and the method of controlling the same |
| CN203548209U (en) * | 2013-09-22 | 2014-04-16 | 珠海凌达压缩机有限公司 | Transfiguration rotary compressor and air conditioning system |
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2013
- 2013-09-22 CN CN201310432903.2A patent/CN103557157A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20040097740A (en) * | 2003-05-13 | 2004-11-18 | 엘지전자 주식회사 | Rotary Type Compressor |
| CN201486856U (en) * | 2009-06-30 | 2010-05-26 | 珠海格力电器股份有限公司 | Rotary compressor with enthalpy gaining device |
| CN101639071A (en) * | 2009-08-21 | 2010-02-03 | 珠海格力电器股份有限公司 | Variable displacement rotary compressor |
| CN201896754U (en) * | 2010-11-16 | 2011-07-13 | 珠海格力电器股份有限公司 | Variable-displacement rotary compressor and air conditioning system using same |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191375A (en) * | 2017-07-31 | 2017-09-22 | 广东美芝制冷设备有限公司 | Compression mechanism and refrigeration plant |
| CN109026690A (en) * | 2018-08-21 | 2018-12-18 | 珠海格力电器股份有限公司 | The pump housing and compressor with it |
| CN111794972A (en) * | 2020-07-27 | 2020-10-20 | 广东美芝制冷设备有限公司 | Cylinder assembly, compressor and refrigeration equipment |
| WO2022021731A1 (en) * | 2020-07-27 | 2022-02-03 | 广东美芝制冷设备有限公司 | Cylinder assembly, compressor, and refrigeration device |
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Effective date of abandoning: 20160831 |
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