CN203756523U - Rotary compressor and compression device thereof - Google Patents
Rotary compressor and compression device thereof Download PDFInfo
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- CN203756523U CN203756523U CN201320740610.6U CN201320740610U CN203756523U CN 203756523 U CN203756523 U CN 203756523U CN 201320740610 U CN201320740610 U CN 201320740610U CN 203756523 U CN203756523 U CN 203756523U
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Abstract
The utility model discloses a rotary compressor and a compression device thereof. The compression device is arranged in a shell of the rotary compressor and comprises a shell, a first air cylinder, a second air cylinder, an intermediate separation plate, a first piston, a second piston, a first slide plate, a second slide plate, a crankshaft, a main bearing, an auxiliary bearing, an air inlet passage and an air outlet passage, wherein the first air cylinder is provided with a first exhaust hole; the top of the main bearing and the bottom of the auxiliary bearing are provided with a first silencer and a second silencer, respectively, the first silencer is communicated with the first air cylinder through the first exhaust hole, and the second silencer is communicated with the second air cylinder through a second exhaust hole; the air inlet passage runs through the intermediate separation plate to be communicated with the first silencer and the second silencer respectively; the second exhaust silencer is communicated with the interior of the shell through the air outlet passage. According to the compression device, in virtue of the air inlet passage, the efficiency and the manufacturability of the compressor can be improved by reducing resistance loss, and the compressor failure caused by over-compression of a liquid refrigerant can be prevented.
Description
Technical field
The utility model relates to the duplex-cylinder rotary compressor that is used in freezing machine, air conditioner, water heater.
Background technique
As shown in Figure 8 and Figure 9, when enclosure interior is high pressure side, Fig. 8 represents that the first silencing apparatus 41 is connected with intermediate connection tube 100 with the horizontal suction port 90 being located in the second cylinder 80 to existing duplex-cylinder rotary compressor.But horizontal suction port 90 and sucking pipe 17 are overlapping up and down, interfere with each other, so be necessary as shown in Figure 9 that in the way of intermediate connection tube 100 distortion connects to prevent that horizontal suction port 90 and sucking pipe 17 from interfering.In addition, the tie point of intermediate connection tube 100 and the first silencing apparatus 41 need to be from the center-biased of sucking pipe 17.
In existing design, the intermediate pressure gas body of the first silencing apparatus 41 is travelled back across the outside of housing 11 by intermediate connection tube 100 like this, afterwards, then is drawn in the second cylinder 80 by horizontal suction port 90.In addition, the same with embodiment 1 from the second silencing apparatus 51 exhausting loop out.
Compare embodiment 1, the pressure loss that in existing design, the passage of intermediate pressure gas body is elongated while causing arriving the second cylinder 80 increases.As a result, the gas gettering quantity of the second cylinder 80 reduces, because the loss of refrigerating capacity causes decrease in efficiency.
In addition, by appending intermediate connection tube, result is not only on pipe arrangement cost, and the manufacture cost of housing welding etc. also can increase.In addition, connect caused Leakage Gas problem by pipe arrangement also very important.
Model utility content
The utility model is intended at least solve one of technical problem existing in prior art.For this reason, an object of the present utility model is to propose a kind of compression set of rotary compressor, and described compression set can reduce the drag losses of gas return path and improve manufacturing, and prevents the compressor fault being caused by liquid coolant compression.
Another object of the present utility model is to propose a kind of rotary compressor with described compression set.
According to the compression set of a kind of rotary compressor of the utility model first aspect embodiment, be located in the housing of rotary compressor, described compression set comprises: housing, is connected with the sucking pipe with its internal communication on described housing; The first cylinder, has the first compression chamber in described the first cylinder, and described the first cylinder has first row pore; The second cylinder, described the second cylinder is located at the below of described the first cylinder, in described the second cylinder, has the second compression chamber; Intermediate clapboard, described intermediate clapboard is located between described the first cylinder and the second cylinder; First piston, described first piston is eccentric to be located in described the first compression chamber rotationally; The second piston, described the second piston is eccentric to be located in described the second compression chamber rotationally; The first slide plate and the second slide plate, described the first slide plate and the second slide plate are located at respectively in described the first cylinder and described the second cylinder movably, and the front end of described the first slide plate and the second slide plate is connected to respectively on the periphery wall of described first piston and the second piston; Bent axle, described bent axle and described first piston and described the second piston are connected to drive the rotation of described first piston and described the second piston; Support main bearing and the supplementary bearing of described bent axle, the top of described main bearing and the bottom of described supplementary bearing are respectively equipped with the first silencing apparatus and the second silencing apparatus, described the first silencing apparatus is communicated with described the first cylinder by described first row pore, and described the second silencing apparatus is communicated with described the second cylinder by described second row pore; Inlet air pathway, described inlet air pathway passes described intermediate clapboard and is communicated with described the first silencing apparatus and described the second silencing apparatus respectively; And the path of giving vent to anger, described in the path of giving vent to anger be communicated with described the second muffler and described enclosure interior.
According to the compression set of the utility model embodiment's rotary compressor, by inlet air pathway is set, prevent the interference problem of the suction port of the first cylinder and second cylinder in prior art, manufacture simple, and can improve the efficiency of compressor and improve manufacturing by reducing drag losses, and prevent the compressor fault occurring due to the overcompression of liquid coolant.
According to an embodiment of the present utility model, described inlet air pathway comprises: the first gas channel, and described the first gas channel is along being penetratingly located on described the first cylinder up and down, and the top of described the first gas channel is communicated with described the first silencing apparatus; The first gas orifice, described the first gas orifice is located on described intermediate clapboard and with described the first gas channel and is communicated with; And first suction port, described the first suction port is along being penetratingly located on described the second cylinder up and down, and described the first suction port is communicated with described the first gas orifice.
Alternatively, the cross section of described the first gas channel is circular.
Alternatively, the cross section of described the first suction port is circular.
Alternatively, the cross section of described the first gas orifice is long-round-shape, ellipse, rectangle or irregular shape.
According to an embodiment of the present utility model, the described path of giving vent to anger comprises: the second gas channel, described the second gas channel is along being penetratingly located on described the first cylinder up and down, and the top of described the second gas channel is communicated with described enclosure interior by the silencing apparatus exhaust port being formed on described the first silencing apparatus; The second gas orifice, described the second gas orifice is located on described intermediate clapboard and with described the second venting channels and is communicated with; And second suction port, described the second suction port is along being penetratingly located on described the second cylinder up and down, and described the second suction port is communicated with described the second gas orifice.
Alternatively, the cross section of described the second gas orifice is long-round-shape, ellipse, rectangle or irregular shape.
According to an embodiment of the present utility model, described compression set further comprises: the first one-way valve, described the first one-way valve is located on described silencing apparatus exhaust port and is configured to from the first silencing apparatus to described enclosure interior one-way exhaust.
According to an embodiment of the present utility model, described compression set further comprises: the second one-way valve, described the second one-way valve be located on described first suction port of described the second cylinder and be configured to from the first silencing apparatus by described inlet air pathway, the second silencing apparatus and described in give vent to anger path to described enclosure interior one-way exhaust.
According to a kind of rotary compressor of the utility model second aspect embodiment, comprising: housing; Electric machine, described electric machine is located in described housing; According to the compression set described in the utility model first aspect embodiment, described compression set is located in described housing and is connected with described electric machine.
Additional aspect of the present utility model and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Brief description of the drawings
Above-mentioned and/or additional aspect of the present utility model and advantage accompanying drawing below combination is understood becoming embodiment's description obviously and easily, wherein:
Fig. 1 is according to the longitudinal section of the utility model embodiment's rotary compressor and refrigeration cycle diagram;
Fig. 2 is the longitudinal section details drawing of the compression set of the rotary compressor shown in Fig. 1;
Fig. 3 is the longitudinal section of the inlet air pathway of the compression set shown in Fig. 1 and the path of giving vent to anger;
Fig. 4 is the silencing apparatus sectional view of the inlet air pathway of the compression set shown in Fig. 1 and the path of giving vent to anger;
Fig. 5 is the planimetric map of the intermediate clapboard of the compression set shown in Fig. 1;
Fig. 6 is the planimetric map of the second cylinder of the compression set shown in Fig. 1;
Fig. 7 is another cutaway sectional view of the compression set shown in Fig. 1;
Fig. 8 is the longitudinal section of existing rotary compressor;
Fig. 9 is the second cylinder planimetric map of existing rotary compressor;
Figure 10 is according to the schematic diagram of another embodiment's of the utility model compression set, wherein shows the first one-way valve;
Figure 11 is according to the schematic diagram of another embodiment's of the utility model compression set, wherein shows the second one-way valve.
Reference character:
R, rotary compressor;
11, housing; 12, outlet pipe; 13, condenser; 14, vaporizer; 15, expansion valve;
16, liquid-storage container; 17, sucking pipe;
30, compression set; 31, bent axle; 35, electric machine;
40, main bearing; 41, the first silencing apparatus; 42, first row pore; 43, the first one-way valve 43;
44, the first silencing apparatus hole; 45, silencing apparatus exhaust port; 46, main bearing suction port;
50, supplementary bearing; 51, the second silencing apparatus; 52, second row pore;
53, the second one-way valve; 54, the second silencing apparatus hole;
60, intermediate clapboard; 61, the second gas orifice; 62, the first gas orifice;
70, the first cylinder; 71, first piston; 72, the first slide plate;
75, the first compression chamber; 77, the second gas channel; 78, the first gas channel;
80, the second cylinder; 81, the second piston; 82, the second slide plate;
84, the first suction port; 85, the second compression chamber; 87, the second suction port;
90, horizontal suction port; 100, intermediate connection tube
Embodiment
Describe embodiment of the present utility model below in detail, described embodiment's example is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Be exemplary below by the embodiment who is described with reference to the drawings, only for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " on ", orientation or the position relationship of the instruction such as D score, 'fornt', 'back', " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward " be based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, construct and operation with specific orientation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second " be only for describing object, and can not be interpreted as instruction or hint relative importance or the implicit quantity that indicates indicated technical characteristics.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the present utility model, except as otherwise noted, the implication of " multiple " is two or more.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be also electrical connection; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can concrete condition understand the concrete meaning of above-mentioned term in the utility model.
Describe according to the compression set of a kind of rotary compressor of the utility model embodiment and there is its duplex-cylinder rotary compressor below with reference to Fig. 1-Fig. 7.
First, as shown in Figure 1, comprise according to duplex-cylinder rotary compressor of the present utility model: housing 11, electric machine 35 and compression set 30, on housing 11, be connected with the sucking pipe 17 with its internal communication, electric machine 35 is located in housing 11, and compression set 30 is located in housing and is connected with electric machine 35.
Lower mask body is described according to the compression set of the utility model embodiment's rotary compressor with reference to figure 2-Fig. 7.
Comprise according to the utility model embodiment's compression set: main bearing 40 and supplementary bearing 50, inlet air pathway and the path of giving vent to anger of the first cylinder 70, the second cylinder 80, intermediate clapboard 60, first piston 71, the second piston 81, the first slide plate 72 and the second slide plate 82, bent axle 31, support bent axle 31.
Particularly, as shown in Figure 1, in the first cylinder 70, there is the first compression chamber 75, the first cylinder 70 has first row pore 42, the second cylinder 80 is located at the below of the first cylinder 70, in the second cylinder 80, there is the second compression chamber 85, intermediate clapboard 60 is located between the first cylinder 70 and the second cylinder 80, first piston 71 is eccentric to be located in the first compression chamber 75 rotationally, the second piston 81 is eccentric to be located in the second compression chamber 85 rotationally, the first slide plate 72 and the second slide plate 82 are located at respectively in the first cylinder 70 and the second cylinder 80 movably, the front end of the first slide plate 72 and the second slide plate 82 is connected to respectively on the periphery wall of first piston 71 and the second piston 81, bent axle 31 is connected to drive the rotation of first piston 71 and the second piston 81 with the second piston 81 with first piston 71.The bottom of the top of main bearing 40 and supplementary bearing 50 is respectively equipped with the first silencing apparatus 41 and the second silencing apparatus 51, the first silencing apparatuss 41 are communicated with the first cylinder 70 by first row pore 42, and the second silencing apparatus 51 is communicated with the second cylinder 80 by second row pore 52.
Inlet air pathway passes intermediate clapboard 60 and is communicated with the first silencing apparatus 41 and the second silencing apparatus 51 respectively, and the path of giving vent to anger is communicated with the second muffler and enclosure interior.
Thus, the first cylinder 70 in the first compression chamber 75, by the low-pressure gas sucking from sucking pipe 17, (s) compress, then be discharged to airtight the first silencing apparatus 41 from second row pore 42 by pressure P.In addition, the second cylinder 80 is in second compression chamber 85(Fig. 3) in by described inlet air pathway, the gas sucking from the first silencing apparatus 41 is compressed, then be discharged to the second silencing apparatus 51 from second row pore 52.Afterwards, by path and the second silencing apparatus 54 of giving vent to anger, be discharged to the inside of housing 11 from silencing apparatus exhaust port 45, then arrive outlet pipe 12 by electric machine 35.
Thus, according to the utility model embodiment's compression set, by inlet air pathway is set, prevent the interference problem of the suction port of the first cylinder and second cylinder in prior art, manufacture simple, and can improve the efficiency of compressor and improve manufacturing by reducing drag losses, and prevent the compressor fault occurring due to the overcompression of liquid coolant.
According to a preferred embodiment of the present utility model, as shown in Figures 2 and 3, inlet air pathway comprises: the first gas channel 78, the first gas orifice 62 and the first suction port 84, the first gas channel 78 is along being penetratingly located on the first cylinder 70 up and down, the top of the first gas channel 78 is communicated with the first silencing apparatus 41, the first gas orifice 62 is located on intermediate clapboard 60 and with the first gas channel 78 and is communicated with, the first suction port 84 is along being penetratingly located on the second cylinder 80 up and down, and the first suction port 84 is communicated with the first gas orifice 62.
Thus, the first cylinder 70 in the first compression chamber 75, by the low-pressure gas sucking from sucking pipe 17, (s) compress, then be discharged to airtight the first silencing apparatus 41 from second row pore 42 by pressure P.In addition, the second cylinder 80 is in second compression chamber 85(Fig. 3) in by inlet air pathway, the gas sucking from the first silencing apparatus 41 is compressed, then be discharged to the second silencing apparatus 51 from second row pore 52.Afterwards, by path and the second silencing apparatus 54 of giving vent to anger, be discharged to the inside of housing 11 from silencing apparatus exhaust port 45, then arrive outlet pipe 12. by electric machine 35.
Alternatively, the cross section of the first gas channel 78 is circular.Further, the cross section of the first suction port 84 is circular.Preferably, the cross section of the first gas orifice 62 is long-round-shape, ellipse, rectangle or irregular shape.
According to the further preferred embodiment of the utility model, the path of giving vent to anger comprises: the second gas channel 77, the second gas orifice 61, with the second suction port 87, as shown in Figures 2 and 3, the second gas channel 77 is along being penetratingly located on the first cylinder 70 up and down, the top of the second gas channel 77 is communicated with enclosure interior by the silencing apparatus exhaust port being formed on the first silencing apparatus 41, the second gas orifice 61 is located on intermediate clapboard 60 and with the second venting channels and is communicated with, the second suction port 87 is along being penetratingly located on the second cylinder 80 up and down, the second suction port 87 is communicated with the second gas orifice 61.
Like this, be discharged to the gas in the second silencing apparatus 51, if Fig. 3 is with the same shown in Fig. 2, be discharged in order the inside of housing 11 from silencing apparatus exhaust port 45 by the second gas orifice 87, the second gas orifice 61, the second gas channel 77 from the second silencing apparatus hole 54.Alternatively, the cross section of the second gas orifice 61 is long-round-shape, ellipse, rectangle or irregular shape.
According to an embodiment of the present utility model, compression set 30 can also comprise: the first one-way valve, the first one-way valve is located on silencing apparatus exhaust port and is configured to from the first silencing apparatus 41 to enclosure interior one-way exhaust.
According to another embodiment of the present utility model, compression set 30 can also comprise: the second one-way valve 53, the second one-way valve 53 be located on the first suction port 84 of the second cylinder 80 and be configured to from the first silencing apparatus 41 by described inlet air pathway, the second silencing apparatus 51 and described in give vent to anger path to enclosure interior one-way exhaust, described inlet air pathway comprises: the first gas channel 78, the first gas orifice 62 and the first suction port 84, described in the path of giving vent to anger comprise: the second gas channel 77, the second gas orifice 61 and the second suction port 87.
Describe according to the multiple embodiments' of the utility model rotary compressor and compression set thereof below with reference to Fig. 2-Fig. 7, Figure 10-Figure 11.
Embodiment one,
Fig. 1 represents that the inside of rotary compressor of the present utility model forms, and the freeze cycle of carrying this rotary compressor.Rotary compressor is made up of the electric machine 35 that is located at rotary 2 sections of compression type compression sets 30 of closed shell 11 internal diameters and be disposed at above it.
Compression set 30 includes the first cylinder 70, the second cylinder 80 and the bent axle 31 with the first side compression chamber and the second side compression chamber and supports main bearing 40 and the supplementary bearing 50 of bent axle, and separates the intermediate clapboard 60 of above-mentioned 2 cylinders.In addition, the top of bent axle 31 connects the rotor in electric machine 35.
The pressurized gas refrigerant that the outlet pipe 12 of rotary compressor is discharged becomes liquid coolant in condenser 13, be depressurized and become low pressure refrigerant at expansion valve 15, then in vaporizer 14, evaporate, be inhaled into again in first side the first cylinder 70 via liquid-storage container 16 and sucking pipe 17.
Fig. 2 represents the detailed formation of compression set 30.In the inside of the first compression chamber 75 of the first cylinder 70, configure first piston 71 and the first slide plate 72 with its periphery butt.Similarly, in the second cylinder 80, dispose the second piston 81 and the second slide plate 82.
Above-mentioned 2 pistons are driven by bent axle 31, eccentric revolution in cylinder compresses chamber separately.In addition, turn round and synchronize the first slide plate 72 and the second slide plate 82 and carry out reciprocating action with the bias of the periphery of above-mentioned 2 pistons.
The first cylinder 70 in the first compression chamber 75, by the low-pressure gas sucking from sucking pipe 17, (s) compress, then be discharged to airtight the first silencing apparatus 41 from second row pore 42 by pressure P.In addition, the second cylinder 80 is in second compression chamber 85(Fig. 3) in the gas sucking from the first silencing apparatus 41 is compressed, then be discharged to the second silencing apparatus 51 from second row pore 52.Afterwards, by the second silencing apparatus 54, be discharged to the inside of housing 11 from silencing apparatus exhaust port 45, then arrive outlet pipe 12. by electric machine 35.
So, compressor R is taking the first cylinder 70 as first sides, taking the duplex cylinder compressor of the second cylinder 80 as second sides.Be drawn into then gas in the first cylinder 70 become pressurized gas (Pd) and be discharged to housing 11 inside by 2 sections of compressions.Therefore, housing internal pressure is high pressure side.In addition, after rotary compressor starting, high side pressure (Pd) uprises, and low-pressure lateral pressure (Ps) step-down, can settle out after several minutes to ten minutes.
The gas pressure that is discharged to the first silencing apparatus 41 from the first cylinder 7070 of the first side, as intermediate pressure (Pm), has the relation of Ps < Pm < Pd.These can be because of operating condition, and namely the refrigerant pressure of condenser 13 and vaporizer 14 also has temperature to change to some extent.
Fig. 3 represents that with different sectional views the intermediate pressure gas body of the first silencing apparatus 41 inside arrives the stream of the second compression chamber 85 of the second cylinder 80 to Fig. 7.
The gas of the first silencing apparatus 41 in Fig. 3,, then is arrived by the first gas orifice 62 of intermediate clapboard 60 in the first suction port 84 of the second cylinder 80 via the first gas channel 78 that is only arranged on the second cylinder 8080 from the first silencing apparatus hole 44.
Fig. 4 represents to Fig. 6 the stream that above-mentioned intermediate gas is detailed.Fig. 4 is the sectional view of the first silencing apparatus 41.Represent that the intermediate pressure gas body of the first silencing apparatus 41 inside arrives the stream of the first suction port 84 via the first gas orifice 62 of intermediate clapboard 60 from the first silencing apparatus hole 44.
Fig. 5 represents the detailed of intermediate clapboard 60.The first gas orifice 62, between the first silencing apparatus hole 44 and the first suction port 84, represents how they connect.Alternatively, the first gas orifice can be long-round-shape, can will travel back across expeditiously the first suction port 84 from the first silencing apparatus hole 44 gas out with minimum area like this.But in order to carry out the roundabout design that can have various shapes, not limiting must be oval hole shape.
Fig. 6 represent the planimetric map of the second cylinder 80 and compression chamber in detail.From slotted hole 62 gas out, be inhaled into the second compression chamber 85 from the first suction port 84, be discharged to the second silencing apparatus 55 by the second row pore 52 of supplementary bearing 50 after compressed.
Fig. 7 is expressed as the longitudinal section of the gas channel of intermediate pressure gas body.
Press gas channel 78, slotted hole 62 from the intermediate pressure gas body of the first silencing apparatus 41 from sound attenuation hole 44, further to the sequential flowing of the first suction port 84, compress at the second cylinder 8080 places.The pressurized gas (Pd) that gas (B) 80 places have compressed are discharged to the inside that is fixed on the second silencing apparatus 51 on supplementary bearing 50.That can know slotted hole 62 here, acts on roundabout connection the first gas channel 78 of sucking pipe 17 and the first suction port 84.
Be discharged to the gas in the second silencing apparatus 51, if Fig. 3 is with the same shown in Fig. 2, be discharged in order the inside of housing 11 from silencing apparatus exhaust port 45 by the second gas orifice 87, the second gas orifice 61, the second gas channel 77 from the second silencing apparatus hole 54.
Thus, according to the utility model embodiment's compression set with the utility model background technique in the prior art described compare, in embodiment one, in the inside of compression set 30, form the stream that has intermediate pressure gas body, gas channel shortens, and more superior in manufacturing and reliability.
Embodiment two,
Embodiment two shown in Figure 10 and Figure 11 is when preventing compressor start or the strong means that fault occurs to be caused by overcompression after liquid coolant that suck such as defrosting running.In addition, pressure when liquid compression, more than the several times of the high-pressure while reaching common running.
Rotary compressor is owing to being directly drawn into the refrigerant of vaporizer in cylinder compression chamber, generally can be equipped with liquid-storage container and relax the direct suction of liquid coolant.But, because the refrigerant enclosed volume of freeze cycle is the more than 2 times of liquid-storage container capacity, so in the case of above-mentioned condition etc., cylinder compression chamber can suck liquid coolant and carry out overcompression.Result can cause the slip component of bent axle 3 or piston etc. significantly to be damaged.
Particularly, in duplex cylinder compressor as in Example 1, the capacity that connects the first side and the second side cylinder loop is little, also have the discharge capacity of the second side cylinder less than the first side cylinder, in the first side cylinder after liquid compression refrigerant again when recompressing in the second side cylinder, be added in load in slip component larger, easily break down.
As shown in figure 10, being equipped with can be from the first one-way valve 43 of the first inside opening of silencing apparatus 41 inside to housing 11.The first one-way valve 43 is current for folk prescription, and refrigerant can only be by the first silencing apparatus 41 inside to housing 11 internal flows, and in contrary direction, valve closing, impassable.
The first compression chamber 75 of the first cylinder 70 sucks liquid coolant, after compression moment liquid coolant from shown in second row pore 42(Fig. 2) flow out to the first silencing apparatus 41 is inner.But because liquid coolant makes the first silencing apparatus 41 first one-way valve 43 openings before becoming abnormal pressure, the first silencing apparatus 41 pressure rise is sharply prevented in advance.Greatly relax the overcompression in the first compression chamber 75 simultaneously.
Liquid coolant flows out to enclosure interior from the first silencing apparatus 41, and the second cylinder 80 can be avoided the suction of a large amount of liquid coolant sharply.As a result, the first compression chamber 75 and the second compression chamber 85 can be avoided the generation of overcompression.
As shown in figure 11, although the second one-way valve 53 be configured to from the first suction port 84 to the second silencing apparatus 51 perforate, can obtain similar equal effect with Figure 10 comparison.At this moment, so by the liquid coolant of one-way valve, much do not flow out to the inside of the second silencing apparatus 51 via second row pore 52, therefore the liquid of the second compression chamber 85 flows into and is significantly lowered.
According in above-mentioned two embodiments of the present utility model, be all by configuring one-way valve in the gas channel of intermediate pressure that connects the first silencing apparatus 41 and housing 11 inside, can avoiding the abnormal pressure being caused by liquid compression.
In addition, when liquid compression abnormal pressure does not occur, the interior pressure of the pressure housing 11 of the gas channel of intermediate pressure is high relatively, closed check valve.Therefore, in the time that stopping, liquid suction still can as usual remain in operation.
, if being all known for those of ordinary skills, electric machine etc. and operation be not described in detail here according to other configuration examples of the utility model embodiment's duplex-cylinder rotary compressor.
In the description of this specification, the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And specific features, structure, material or the feature of description can be with suitable mode combination in any one or more embodiments or example.
Although illustrated and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: in the situation that not departing from principle of the present utility model and aim, can carry out multiple variation, amendment, replacement and modification to these embodiments, scope of the present utility model is limited by claim and equivalent thereof.
Claims (10)
1. a compression set for rotary compressor, is located in the housing of rotary compressor, it is characterized in that, comprising:
The first cylinder, has the first compression chamber in described the first cylinder, and described the first cylinder has first row pore;
The second cylinder, described the second cylinder is located at the below of described the first cylinder, in described the second cylinder, has the second compression chamber;
Intermediate clapboard, described intermediate clapboard is located between described the first cylinder and the second cylinder;
First piston, described first piston is eccentric to be located in described the first compression chamber rotationally;
The second piston, described the second piston is eccentric to be located in described the second compression chamber rotationally;
The first slide plate and the second slide plate, described the first slide plate and the second slide plate are located at respectively in described the first cylinder and described the second cylinder movably, and the front end of described the first slide plate and the second slide plate is connected to respectively on the periphery wall of described first piston and the second piston;
Bent axle, described bent axle and described first piston and described the second piston are connected to drive the rotation of described first piston and described the second piston;
Support main bearing and the supplementary bearing of described bent axle, the top of described main bearing and the bottom of described supplementary bearing are respectively equipped with the first silencing apparatus and the second silencing apparatus, described the first silencing apparatus is communicated with described the first cylinder by described first row pore, and described the second silencing apparatus is communicated with described the second cylinder by second row pore;
Inlet air pathway, described inlet air pathway passes described intermediate clapboard and is communicated with described the first silencing apparatus and described the second silencing apparatus respectively; And
The path of giving vent to anger, described in the path of giving vent to anger be communicated with described the second silencing apparatus and described enclosure interior.
2. compression set according to claim 1, is characterized in that, described inlet air pathway comprises:
The first gas channel, described the first gas channel is along being penetratingly located on described the first cylinder up and down, and the top of described the first gas channel is communicated with described the first silencing apparatus;
The first gas orifice, described the first gas orifice is located on described intermediate clapboard and with described the first gas channel and is communicated with; And
The first suction port, described the first suction port is along being penetratingly located on described the second cylinder up and down, and described the first suction port is communicated with described the first gas orifice.
3. compression set according to claim 2, is characterized in that, the cross section of described the first gas channel is circular.
4. compression set according to claim 3, is characterized in that, the cross section of described the first suction port is circular.
5. compression set according to claim 2, is characterized in that, the cross section of described the first gas orifice is long-round-shape, ellipse or rectangle.
6. compression set according to claim 2, is characterized in that, described in the path of giving vent to anger comprise:
The second gas channel, described the second gas channel is along being penetratingly located on described the first cylinder up and down, and the top of described the second gas channel is communicated with described enclosure interior by the silencing apparatus exhaust port being formed on described the first silencing apparatus;
The second gas orifice, described the second gas orifice is located on described intermediate clapboard and with described the second gas channel and is communicated with; And
The second suction port, described the second suction port is along being penetratingly located on described the second cylinder up and down, and described the second suction port is communicated with described the second gas orifice.
7. compression set according to claim 6, is characterized in that, the cross section of described the second gas orifice is long-round-shape, ellipse or rectangle.
8. according to the compression set described in any one in claim 2-7, it is characterized in that, further comprise:
The first one-way valve, described the first one-way valve is located on described silencing apparatus exhaust port and is configured to from the first silencing apparatus to described enclosure interior one-way exhaust.
9. according to the compression set described in any one in claim 2-7, it is characterized in that, further comprise:
The second one-way valve, described the second one-way valve is located on described first suction port of described the second cylinder and is configured to from the second silencing apparatus to described enclosure interior one-way exhaust.
10. a rotary compressor, is characterized in that, comprising:
Housing, is connected with the sucking pipe with its internal communication on described housing;
Electric machine, described electric machine is located in described housing;
According to the compression set described in any one in claim 1-9, described compression set is located in described housing and is connected with described electric machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320740610.6U CN203756523U (en) | 2013-11-20 | 2013-11-20 | Rotary compressor and compression device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320740610.6U CN203756523U (en) | 2013-11-20 | 2013-11-20 | Rotary compressor and compression device thereof |
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| CN203756523U true CN203756523U (en) | 2014-08-06 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671117A (en) * | 2013-11-20 | 2014-03-26 | 广东美芝制冷设备有限公司 | Rotary compressor and compression unit thereof |
| CN104405640A (en) * | 2014-10-15 | 2015-03-11 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotary compressor and control method thereof |
| CN104405640B (en) * | 2014-10-15 | 2017-01-04 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of rotary compressor and control method thereof |
| CN107202017A (en) * | 2016-03-18 | 2017-09-26 | 日立江森自控空调有限公司 | Rotary compressor |
| CN107339239A (en) * | 2017-07-28 | 2017-11-10 | 广东美芝制冷设备有限公司 | Compressor and humidity control system |
| CN112746959A (en) * | 2019-10-31 | 2021-05-04 | 广东美的白色家电技术创新中心有限公司 | Compression mechanism, compressor assembly, heat exchange system and electrical equipment |
-
2013
- 2013-11-20 CN CN201320740610.6U patent/CN203756523U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671117A (en) * | 2013-11-20 | 2014-03-26 | 广东美芝制冷设备有限公司 | Rotary compressor and compression unit thereof |
| CN104405640A (en) * | 2014-10-15 | 2015-03-11 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotary compressor and control method thereof |
| CN104405640B (en) * | 2014-10-15 | 2017-01-04 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of rotary compressor and control method thereof |
| CN107202017A (en) * | 2016-03-18 | 2017-09-26 | 日立江森自控空调有限公司 | Rotary compressor |
| CN107339239A (en) * | 2017-07-28 | 2017-11-10 | 广东美芝制冷设备有限公司 | Compressor and humidity control system |
| CN112746959A (en) * | 2019-10-31 | 2021-05-04 | 广东美的白色家电技术创新中心有限公司 | Compression mechanism, compressor assembly, heat exchange system and electrical equipment |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20191120 |