CN1619150A - Double cylinder closed rotary compressor and refrigerating air-conditioning device - Google Patents
Double cylinder closed rotary compressor and refrigerating air-conditioning device Download PDFInfo
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- CN1619150A CN1619150A CN 200410094998 CN200410094998A CN1619150A CN 1619150 A CN1619150 A CN 1619150A CN 200410094998 CN200410094998 CN 200410094998 CN 200410094998 A CN200410094998 A CN 200410094998A CN 1619150 A CN1619150 A CN 1619150A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
- F04C18/3562—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation
- F04C18/3564—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation the surfaces of the inner and outer member, forming the working space, being surfaces of revolution
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/001—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of similar working principle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/008—Hermetic pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/80—Other components
- F04C2240/805—Fastening means, e.g. bolts
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention is aimed to solve problems of a conventional 2-cylinder hermetic rotary compressor, in which a cylinder is distorted and deformed caused by tightening of a bolt in assembly, welding and fixing to a sealed vessel, and welding of a suction pipe to cause increase in leakage loss and degradation in performance, or in which clearance between a rotor and a stator of an electric motor is changed, and electromagnetic noise might be increased. In this rotary compressor, the size in a radial direction of a first bearing is approximately the same as that of a second bearing. In assembly of both bearings with both cylinders of a compression element part, the first bearing is assembled with a first cylinder by tightening by bolts at a position in a radial direction of the first bearing with a predetermined distance from the tip, the second bearing is directly assembled with a second cylinder by tightening of bolts at a position spaced by a predetermined distance from the tip of the second bearing in a radial direction, and both of the cylinders are directly assembled by tightening by a bolt through an intermediate partition board. The bolt tightening the cylinders is disposed at a position closer to the inside in the radial direction from the tip of each bearing with a predetermined distance.
Description
Technical field
The present invention relates to be used for the double cylinder closed rotary compressor of the refrigerating air-conditioning of room air conditioner and air-conditioning box, refrigerated warehouse etc., and the refrigerating air-conditioning that uses this compressor, particularly, the strain when preventing the compressor assembling is relevant.
Background technique
Under the situation of double cylinder closed rotary compressor, via intermediate clapboard cylinder is affixed to upside and downside, and then welding is fixed on the seal container, in addition, separate suction pipe inserted respectively and weld be fixed to up and down on the cylinder, compare with the single cylinder closed rotary compressor, the number of parts is many, and utilize the position that bolt connects or welding is fixing also many, thereby, as everyone knows, the bolt when assembling connects or the internal diameter of the cylinder that welding fixedly causes or the strain capacity increase of end face.
In addition, the compression member of closed rotary compressor, finished part precision is high with appropriate fit up gap assembles up each other, and connection strain or weld strain during assembling become the reason of air loss and slippage loss, cause the reduction of performance.Thereby for obtained performance can not reduce, high efficiency compressor, in double cylinder closed rotary compressor, it is very necessary preventing to be connected or welded the strain that fixedly causes by bolt when assembling in compression member.
As prior art double cylinder closed rotary compressor, disclose in the patent documentation 1 that " compression member 4 comprises: cylinder 6,7; be clamped in the intermediate clapboard 5 between these cylinders; be fixed on the aforementioned cylinder, the bearing 12,13 of axle supporting rotating shaft; with centerings such as these bearings, cylinder and intermediate clapboards, with bolt 16,17,18 fixing these compression elements 4 that form. Aforementioned bearings 12,13 is fixed on each cylinder 6,7 with bolt 16,17, aforementioned cylinder and intermediate clapboard 5, and in the bearing outside, it is fixing with bolt 18 to cross over each cylinder." (with reference to patent documentation 1).
In addition, in patent documentation 2, disclose " bearing 15 is fixed on the inwall of seal container 1; simultaneously; cylinder 9,10 is fixed on the bearing 15, between the inwall of each cylinder 9,10 and seal container 1, constitutes clearance G, so; when design; the internal capacity for seal container 1 has certain surplus, can improve reliability, simultaneously; utilize compact many cylinder rotation compression member 3, to improve compression efficiency and mechanical efficiency." (with reference to patent documentation 2).
In addition, in patent documentation 3, a kind of " compression mechanical part 7; first cylinder 15 and second cylinder 17 that are connected by aforementioned axis 11 constitute; described these first, second cylinders 15,17 are spaced apart by dividing plate 19, make it separate, are fixed on the internal face of closed box 1 is disclosed.First, second cylinder 15,17 forms identical thickness basically, middle clamping dividing plate 19, by clutch shaft bearing member 20 and the construction bolt 61 that runs through second bearing components 21, bolt becomes an integral body " (with reference to patent documentation 3).
[patent documentation 1] spy opens flat 6-159277 communique (the 3rd page, Fig. 1, Fig. 2)
[patent documentation 2] spy open the 2001-50184 communique (the 3rd page, the 4th page, Fig. 1)
[patent documentation 3] spy open flat 11-132117 communique (the 2nd page, the 3rd page, Fig. 1]
The content of invention
Usually, be connected and fixed via intermediate clapboard under the situation of cylinder up and down, according to the end face of cylinder or the accuracy to shape of intermediate clapboard end face, cylinder can produce strain, particularly, according to patent documentation 1 described compression system, multi-cylinder rotary compressor, because bearing 12,13 use bolt 16 respectively, 17 are fixed to each cylinder 6, on 7, cylinder 6,7 and intermediate clapboard 5 at bearing 12, each cylinder 6 is crossed in 13 the outside, 7 is fixing by bolt 18, so, as represent the shown in Figure 4 of compression element, the position of connecting bolt 18 is arranged on bearing 12, the outside of 13 collar part (point), shown in dotted line, cylinder 6 up and down, shrink owing to being connected and fixed in 7 the outside, inboard mode generation strain (wherein, the symbol in Fig. 4 and this section adopts the symbol in the patent documentation 1) with broadening.
In addition, according to patent documentation 2 described compression system, multi-cylinder rotary compressors and patent documentation 3 described rotary compressors, dividing plate via the centre, utilize the bolt cylinder connection secured to one another up and down of passing through metal (upper, this situation is compared with the direct-connected situation of cylinder up and down, also be subjected to the influence of the accuracy to shape of metal (upper, the connection strain of cylinder becomes bigger up and down.
And then according to the rotary compressor of patent documentation 3, cylinder is fixed on the internal face of seal container up and down, is separately installed with suction pipe.Under situation about the cylinder welding being fixed on the seal container, the internal diameter generation strain of cylinder, the circularity of internal diameter worsens, and, refrigerant is being imported to the suction pipe welding of using in each cylinder when being fixed on the seal container, the internal diameter generation strain of this cylinder, perhaps the gap of the rotor of electrical components and stator changes, and this fact is well-known.
In addition, in pressing chamber, carry out oil sealing, prevent that refrigerant from leaking from high side to low side by the refrigerator oil of enclosing in the seal container.Here, bolt by cylinder connects strain that causes or the circularity deterioration that is caused by the internal diameter strain that welding causes, gap between rotary plunger and the cylinder is changed, can not guarantee appropriate oil sealing, can increase refrigerant from of the leakage of high pressure side pressing chamber to the low voltage side pressing chamber, increase slip resistance, cause the reduction of compression efficiency and the reduction of compressor performance.
Therefore, the compression system, multi-cylinder rotary compressor of patent documentation 1, the rotary compressor of the compression system, multi-cylinder rotary compressor of patent documentation 2 and patent documentation 3, bolt connects the strain that causes, the internal diameter circularity that strain the caused deterioration of cylinder bore and the strain of end face when existing owing to assembling, cause the increase of coolant leakage (leakage loss) and slip resistance (slippage loss), produce the reduction of compressor efficiency, the problem that compressor performance reduces.
In addition, in the rotary compressor of patent documentation 3, except cylinder welding being fixed on the seal container and the suction pipe welding is fixed to the increase (slippage loss) of coolant leakage (leakage loss) that the deterioration of the cylinder bore strain that causes on the seal container and circularity causes and slip resistance, and then, owing to the suction pipe welding is fixed to the rotor of the electrical components that causes on the seal container and the variation in the gap between the stator (becoming inhomogeneous), also exists the problem that electromagnetic noise increases.
The objective of the invention is, obtain strain that a kind of bolt when preventing to be accompanied by assembling connects the cylinder that causes etc., prevent that efficient from reducing, high performance double cylinder closed rotary compressor.
In addition, close purpose of the present invention is, obtain a kind of cylinder that welding on seal container causes when preventing to be accompanied by assembling etc. strain, prevent that efficient from reducing, high performance double cylinder closed rotary compressor.
In addition, the objective of the invention is, obtain the little high performance double cylinder closed rotary compressor of a kind of electromagnetic noise.
In order to achieve the above object, double cylinder closed rotary compressor of the present invention, the radial direction of clutch shaft bearing and second bearing big or small substantially the same, carry out two bearings of compression member and the assembling of two cylinders by following mode, promptly, radial direction with clutch shaft bearing, with the position that has predetermined distance foremost on, directly connect the clutch shaft bearing and first cylinder with bolt, from second bearing foremost, radially on the position at interval, directly connect second bearing and second cylinder with bolt with regulation, directly connect two cylinders via intermediate clapboard with bolt, and, the bolt link position of two cylinders is positioned at the inboard of close radial direction foremost from two bearings, position with predetermined distance.
Duplex-cylinder rotary compressor of the present invention, owing to carry out as follows as two bearings of compression member and the assembling of two cylinders, promptly, with clutch shaft bearing and first cylinder directly in the radial direction of clutch shaft bearing, from the position that has predetermined distance foremost, connecting with bolt, with second bearing and second cylinder directly from the front end of second bearing, radially, on the position at interval, connect with bolt with regulation, two cylinders are directly connected with bolt via intermediate clapboard, and, the bolt link position of two cylinders, be positioned at the inboard of close radial direction foremost from two bearings, position with predetermined distance, so, the bolted position of two cylinders, the same with the bolt link position of two bearings, with comparing foremost of two bearings, become the inboard in radial direction, and, by connecting at bearing with during cylinder is connected, make from the predetermined distance foremost of two bearings approaching, can make the bolt link position and the freezing bolt link position of cylinder of bearing approaching,, also can prevent owing to be connected and fixed the outside contraction that causes even with two cylinder bolt, the cylinder strain of inboard expansion type.Therefore, can prevent the increase of coolant leakage loss and the increase of slippage loss, can prevent the reduction of compressor efficiency, improve the performance of compressor.
Description of drawings
Fig. 1 is the longitudinal section of the double cylinder closed rotary compressor of expression form of implementation 1 of the present invention.
Fig. 2 is the sectional view of major component of the compression member portion of presentation graphs 1.
Fig. 3 is the diagram of effect of resilient member of the double cylinder closed rotary compressor of explanation form of implementation 1 of the present invention.
Fig. 4 is the diagram of generation of cylinder strain of the double cylinder closed rotary compressor of explanation prior art.
Embodiment
Form of implementation 1.
Below, with reference to description of drawings double cylinder closed rotary compressor of the present invention.
Fig. 1 is the sectional view of double cylinder closed rotary compressor of expression form of implementation 1 of the present invention, and Fig. 2 is the sectional view of major component of the compression member of presentation graphs 1.
In these figure, double cylinder closed rotary compressor, comprise: be contained in top in the seal container 1, have the electrical components portion 2 of rotor and stator, be contained in the compression member portion of bottom, the discharge tube of giving prominence to the outside from the inside of seal container 1 13, outside suction storage 14 is inserted into the suction pipe 15 of seal container 1 inside etc. from suction storage 14.
This compression member portion is made of following part etc.: the running shaft 3 that is driven by electrical components portion 2, cylinder 4 up and down, 5, at cylinder 4 up and down, stop up the opening of casing top half 4 lower end surfaces between 5, stop up the intermediate clapboard 6 of the opening of cylinder 5 upper-end surfaces down, stop up the opening of casing top half 4 upper-end surfaces, main bearing 7 as the bearing of running shaft 3, stop up the opening of cylinder lower end surface down, supplementary bearing 8 (size of radial direction is substantially the same with main bearing 7) as the bearing of running shaft 3, be coupled on the running shaft 3, respectively at cylinder 4, the rotary plunger 9 of rotation in 5,10, be respectively fixed to main bearing 7, vent silencer 11 on the supplementary bearing 8,12, be arranged on resilient member 19 between supplementary bearing 8 and the vent silencer 12 etc.
In addition, clutch shaft bearing, second bearing are equivalent to main bearing 7, supplementary bearing 8 respectively, and in addition, first cylinder, second cylinder are equivalent to casing top half 4, following cylinder 5 respectively.
By welding, the cylinder 4 (or 5) in the cylinder up and down is fixed on the internal surface of seal container 1,15 of suction pipes are inserted in this cylinder 4 (or 5).Simultaneously, for refrigerant being drawn into another cylinder 5 (or 4) wherein, the suction passage of branch is set in cylinder 4 (or 5), this suction passage runs through intermediate clapboard 6, is communicated with tipper on being arranged on another cylinder 5 (or 4), and refrigerant is imported.In this example, as shown in Figure 1, casing top half 4 is fixed on the seal container, suction pipe 15 is inserted in the casing top half 4, be fixed on the seal container 1 by soldering.Below, describe with this example.
At first explanation fixing of cylinder 4,5 and fixing of major-minor bearing 7,8 up and down.
Secondly, the installation of vent silencer 11,12 is described.
As shown in Figure 2, vent silencer 11 is installed on the main bearing 7.Vent silencer 11, resilient engagement is on the radial direction outer end and bump 7b of the round plate 7c of main bearing 7, the outer end and the bump 7b that are fixed the round plate 7c of main bearing 7 respectively (also can be with this baffler 11 with main bearings 7, portion divides on ground the outer end side in the radial direction of round plate 7c, is fixed on the cylinder with bolt 21).Also the front end of vent silencer 11 can be extended to the outer end of bump 7b front end always, the outer end of bump 7b is compressed, the bump 7b side of vent silencer 11 is fixed.In this case, the situation of the supplementary bearing 8 that will describe with the back is the same, the resilient member 19 of ring-type is configured in the outer end of bump 7b, by compressing via this resilient member 19, stop up the opening of the end face of cylinder 4, can prevent the strain of end face of the round plate 7c of main bearing 7.
In addition, the installation of vent silencer 12 on supplementary bearing 8, shown in Fig. 3 (a), in the prior art, by resilient engagement to the outer end of the front end of the radial direction outer end of the round plate 8c of supplementary bearing 8 and bump 8b and fixed (also can partly reinstating bolt 22 and be fixed to down on the cylinder 5) in the front end side of radial direction with supplementary bearing 8 one.In this case, affact the fastening force on the outer end of bump 8b of supplementary bearing 8 by the auxiliary section from vent silencer 12, strain (with reference to the distortion shown in the dotted line of the end face of the arrow of Fig. 3 (a) and supplementary bearing 8) can take place in the end face of the round plate 8c of supplementary bearing 8.Therefore, in this example, shown in Fig. 3 (b), in the middle of the auxiliary section of the outer end of the bump 8b of supplementary bearing 8 and vent silencer 12, the resilient member 19 of ring-type is set.For example, be provided as the annular resilient member 19 of ester moulding products.Therefore, even similarly the auxiliary section from vent silencer 12 applies fastening force to the outer end of the bump 8b of supplementary bearing 8, effect by resilient member 19, can not make the end face generation strain of the round plate 8c of supplementary bearing 8, prevent that the performance that the increase of the increase of slippage loss and leakage loss causes from reducing.In addition, by sealing with the outer end of vent silencer 12 with the bump 8b of supplementary bearing 8, the cold media air after the compression can not blow in the refrigerator oil 20 that is stored in seal container 1 bottom.
The configuration of resilient member 19 preferably is configured in the bump 7b of two bearings 7,8, the outer end of 8b, even but only be configured on the outer end of one of them, also have the effect of the strain of preventing.
Below, describe for the action of double cylinder closed rotary compressor with said structure.Make running shaft 3 rotation by electrical components 2, rotary plunger 9,10 carries out off-centre and rotatablely moves in the pressing chamber 17,18 of cylinder 4,5 up and down.Whereby, the refrigeration cycle of cold media air outside compressor is drawn in the pressing chamber 17,18, by sucking storage 14, suction pipe 15, be drawn into cold media air in the casing top half 4 after, the suction passage by branch in casing top half 4 is directed to down cylinder 5.Then, compressed refrigerant air in cylinder 4,5 up and down, in being discharged to vent silencer 11,12 after, be imported in the seal container 1, after the cooling electrical components 2, utilize the discharge tube 13 that is arranged on seal container 1 top, guiding is to the refrigeration cycle of outside.
In this double cylinder closed rotary compressor, as shown in Figure 2, cylinder 4,5 directly is connected and fixed via intermediate clapboard 6 usefulness bolts 23 up and down, and compare bolt 23 with the situation of prior art be connected and fixed position configuration in the inboard, be arranged on as main bearing 7, the collar part 7a of supplementary bearing 8 front ends, the inboard of 8a.This be be separately fixed at cylinder 4,5 up and down on main bearing 7, supplementary bearing 8 bolt 21,22 be connected and fixed substantially the same position, position, collar part 7a, the 8a of main bearing 7, supplementary bearing 8 avoid the bolt joint.Whereby, even cylinder 4,5 carries out bolt up and down, can not produce the strain that shrink in the outside, the inboard is expanded that causes because of being connected and fixed yet, can prevent that the gap that is coupled to the rotary plunger 9,10 in the cylinder 4,5 from changing, prevent that the performance that causes because of the leakage loss increase from reducing.Promptly, two cylinders 4,5 bolt link position and two bearings 7,8 bolt link position is the same, be positioned at than two bearings 7, the inboard of 8 more close radial direction foremost, and, by making from two bearings 7,8 predetermined distances that rise foremost are at bearing 7,8 connection and cylinder 4, approaching in 5 the connection, can make bearing 7,8 bolt link position and cylinder 4,5 bolt link position is approaching, even with two cylinders 4,5 use bolt, also can prevent cylinder 4,5 produce owing to be connected and fixed the outside contraction that causes, the strain of inboard expansion type.
In addition, in this double cylinder closed rotary compressor, since by welding only will about casing top half 4 in the cylinder 4,5 (also can just descend cylinder 5, can be any one cylinder wherein) be fixed on the seal container 1, so, reduce the heat that produces by welding, prevented the strain of compression member effectively, reduced leakage loss and slippage loss effectively.
In addition, in this double cylinder closed rotary compressor, the compression member portion of assembling is fixed on the seal container 1 with 2 welding of electrical components portion, insert suction pipe 15, radially soldering, casing top half 4 welding of cylinder 4,5 are fixed on the seal container 1 but only incite somebody to action up and down, only suction pipe 15 is inserted in this casing top half 4, be fixed by welding on the seal container, utilize suction passage, with cylinder 5 under the cold media air guiding by the suction passage branch in the casing top half 4.Like this, compare with the situation that suction pipe 15 is inserted into independently two cylinders, 4,5 interior guiding refrigerant respectively, reduce the heat that the soldering when being accompanied by suction pipe 15 insertions produces, the distortion in the gap of the strain by preventing compression member portion and the stator of electrical components portion 2 and rotor prevents the increase of electromagnetic noise.Therefore, can obtain the double cylinder closed rotary compressor of low noise.Wherein, only will descend cylinder 5 to be fixed by welding on the seal container 1, and only suction pipe 15 will be inserted in this time cylinder 5, and be fixed by welding on the seal container, the suction of refrigerant in casing top half also can obtain same effect with top described the same.
Promptly, the bolt of putting down in writing in this form of implementation relevant with cylinder 4,5 and bearing connects, the setting of the resilient member when vent silencer is installed, only one in two cylinders 4,5 is fixed by welding on the seal container 1,15 of suction pipes are inserted the medium measure of this cylinder, can carry out separately, also any several combinations in them can be obtained the double cylinder closed compressor with effect separately.
Form of implementation 2.
The double cylinder closed rotary compressor of this form of implementation 2 in the double cylinder closed rotary compressor described in the form of implementation 1, specifies employed refrigerant and refrigerator oil.Other structures etc. are identical with form of implementation 1, therefore, below main its difference of explanation.
Employed refrigerant, adopting depletion of the ozone layer coefficient (ODP) is the zero R410A as High Pressure Hydrogen fluorine carbide, corresponding therewith, as the refrigerator oil 20 that is stored in seal container 1 bottom, adopt polyatomic alcohol polybasic alcohol ester oil (POE oil).Under the situation that adopts the R410A refrigerant, with respect to for the R22 of hydrogen CFCs refrigerant of the prior art, refrigerant density height, in order to obtain identical ability, the air displacement of compressor can be reduced to about 70%.In order to reduce air displacement, generally can dwindle the thickness of the cylinder that constitutes pressing chamber, in this case, the rigidity of cylinder 4,5 reduces, assembly deflections and welding deformation performance reduce, and the influence that electromagnetic noise is increased strengthens, but by adopting form of implementation 1 described structure, even under the situation that adopts the R410A refrigerant, also can obtain the double cylinder closed rotary compressor of high efficiency, low noise.In above-mentioned example, situation when adopting R410A as refrigerant is illustrated, but when the refrigerant employing is both the R407C of hydrogen fluorine carbide, situation also is the same, in addition, as refrigerator oil, when adopting polyvinyl ester oil (PVE oil) and employing and hydrogen fluorine carbide refrigerant can not miscible or faint miscible alkylbenzene oil (AB oil) time, also can obtain same effect.
As mentioned above, in this double cylinder closed rotary compressor, refrigerant uses the hydrogen fluorine carbide refrigerant of R410A or R407C etc., use polyvinyl ester oil (PVE oil) or alkylbenzene oil (AB oil) as refrigerator oil, in the cylinder about only suction pipe being inserted in the cylinder, the suction passage that branch is set in cylinder imports to refrigerant in another cylinder, simultaneously, cylinder is directly used bolt via intermediate clapboard up and down, this connecting bolt obturation is the end face of cylinder up and down, directly be bolted on each cylinder respectively, be arranged on the main bearing of supporting rotating shaft, the inboard of the collar part of supplementary bearing, so, can obtain high efficiency, the double cylinder closed rotary compressor of low noise.
Form of implementation 1 or 2 described double cylinder closed rotary compressors can be used as the compressor use that refrigerating air-conditioning is used.Promptly, have this double cylinder closed rotary compressor by making, the heat source side heat exchanger, utilize the side heat exchanger, connect the refrigerating air-conditioning of the coolant piping, blower etc. of compressor and two heat exchangers, can obtain to have the refrigerating air-conditioning of the effect of form of implementation 1 and described double cylinder closed rotary compressor.
This double cylinder closed rotary compressor can be widely used in refrigerating air-conditioning.
Claims (7)
1. double cylinder closed rotary compressor, it is characterized in that, in seal container, comprise electrical components portion and compression member portion, described compression member portion has two cylinders, described two cylinders are respectively first cylinder that stops up its end face opening with clutch shaft bearing and intermediate clapboard, and second cylinder of using second bearing substantially the same and aforementioned intermediate clapboard to stop up its end face opening with aforementioned clutch shaft bearing radial direction size
Carry out aforementioned two bearings of aforementioned compression member and the assembling of aforementioned two cylinders by following mode; Namely; Radial direction with aforementioned clutch shaft bearing; With the position that has foremost predetermined distance on; Directly connect aforementioned clutch shaft bearing and aforementioned first cylinder with bolt; From aforementioned second bearing foremost, radially on the position at the interval with regulation, directly connect aforementioned second bearing and aforementioned second cylinder with bolt; Directly connect aforementioned two cylinders with bolt via aforementioned central dividing plate
In addition, the bolt link position of aforementioned two cylinders, be positioned at from aforementioned two bearings foremost near the inboard of radial direction, have the position of predetermined distance.
2. double cylinder closed rotary compressor as claimed in claim 1, it is characterized in that, from aforementioned two bearings bolted aforementioned foremost predetermined distance, equate basically with interval from the bolted aforementioned regulation foremost of aforementioned two cylinders.
3. as claim 1 or the described double cylinder closed rotary compressor of claim 2, it is characterized in that, in aforementioned two cylinders, one of them is fixed by welding on the aforementioned seal container.
4. as claim 1 any one described double cylinder closed rotary compressor to the claim 3, it is characterized in that, the refrigerant suction pipe that sucks refrigerant is inserted in the cylinder that is fixed by welding on the aforementioned seal container, be fixed by welding on the aforementioned seal container, when in aforementioned two cylinders, having the cylinder that is not fixed on the aforementioned seal container, branch's suction passage that utilization forms in being inserted with the cylinder of aforementioned suction pipe is drawn into refrigerant in this cylinder.
5. double cylinder closed rotary compressor, it is characterized in that, in seal container, comprise electrical components portion and compression member portion, described compression member portion has two cylinders, described two cylinders are respectively first cylinder that stops up its end face opening with clutch shaft bearing and intermediate clapboard, and second cylinder that stops up its end face opening with second bearing and aforementioned intermediate clapboard
On aforementioned two bearings of aforementioned compression member portion, has vent silencer, by outer end that flexibly compresses bump and the outer end of stopping up the round plate of cylinder end face opening vent silencer is fixed, in aforementioned two bafflers at least one, via the resilient member between end that is configured in aforementioned bump and the aforementioned vent silencer, be pressed to the end of aforementioned bump.
6. as claim 1 any one described double cylinder closed rotary compressor to the claim 5, it is characterized in that, refrigerant is hydrogen fluorine carbide refrigerants such as R410A, R407C, and refrigerator oil is any refrigerator oil in polyatomic alcohol polybasic alcohol ester oil, alkylbenzene oil, the polyvinyl ester oil.
7. refrigerating air-conditioning, it is characterized in that, it comprises: claim 1 any one described double cylinder closed rotary compressor to the claim 6, the heat source side heat exchanger, utilize the side heat exchanger, the coolant piping that connects aforementioned compressor and aforementioned two heat exchangers, blower etc.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP389574/2003 | 2003-11-19 | ||
| JP2003389574A JP2005147093A (en) | 2003-11-19 | 2003-11-19 | 2-cylinder hermetic rotary compressor and refrigerating air conditioner |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101012519A Division CN101050767A (en) | 2003-11-19 | 2004-11-18 | Double cylinder closed rotary compressor and refrigerating air-conditioning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1619150A true CN1619150A (en) | 2005-05-25 |
| CN100408859C CN100408859C (en) | 2008-08-06 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101012519A Pending CN101050767A (en) | 2003-11-19 | 2004-11-18 | Double cylinder closed rotary compressor and refrigerating air-conditioning device |
| CNB2004100949982A Active CN100408859C (en) | 2003-11-19 | 2004-11-18 | Double cylinder closed rotary compressor and refrigerating air-conditioning device |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101012519A Pending CN101050767A (en) | 2003-11-19 | 2004-11-18 | Double cylinder closed rotary compressor and refrigerating air-conditioning device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2005147093A (en) |
| CN (2) | CN101050767A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100402872C (en) * | 2005-07-21 | 2008-07-16 | 李玉斌 | Crankshaft for three cylinder rotary compressor |
| WO2009062365A1 (en) * | 2007-11-17 | 2009-05-22 | Guang Dong Mei Zhi Refrigeration Equipment Co., Ltd | A suction device for capacity-controlled rotary compressor |
| CN1991178B (en) * | 2005-12-27 | 2010-07-14 | 三菱电机株式会社 | Double-cylinder rotary sealing type compressor manufacturing method |
| CN105134594A (en) * | 2015-08-24 | 2015-12-09 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN110925203A (en) * | 2019-12-17 | 2020-03-27 | 广东美芝制冷设备有限公司 | Rotary double-cylinder air compression mechanism and double-cylinder single-suction air compressor |
| CN114483582A (en) * | 2021-12-31 | 2022-05-13 | 珠海格力电器股份有限公司 | Pump body structure, compressor, air conditioner and assembling method |
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| KR101335421B1 (en) * | 2006-12-29 | 2013-11-29 | 엘지전자 주식회사 | Hermetic compressor |
| JP2010156364A (en) | 2008-12-26 | 2010-07-15 | Mitsubishi Electric Corp | Fastening member and rotary compressor |
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| JPH06159277A (en) * | 1992-11-26 | 1994-06-07 | Sanyo Electric Co Ltd | Multi-cylinder rotary compressor |
| JP3418470B2 (en) * | 1994-12-20 | 2003-06-23 | 東芝キヤリア株式会社 | Rotary compressor |
| JP3762043B2 (en) * | 1997-01-17 | 2006-03-29 | 東芝キヤリア株式会社 | Rotary hermetic compressor and refrigeration cycle apparatus |
| JPH11132117A (en) * | 1997-08-26 | 1999-05-18 | Tokyo Roki Co Ltd | Air cleaner |
| JP2001050184A (en) * | 1999-08-05 | 2001-02-23 | Sanyo Electric Co Ltd | Multiple cylinder rotary compressor |
-
2003
- 2003-11-19 JP JP2003389574A patent/JP2005147093A/en active Pending
-
2004
- 2004-11-18 CN CNA2007101012519A patent/CN101050767A/en active Pending
- 2004-11-18 CN CNB2004100949982A patent/CN100408859C/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100402872C (en) * | 2005-07-21 | 2008-07-16 | 李玉斌 | Crankshaft for three cylinder rotary compressor |
| CN1991178B (en) * | 2005-12-27 | 2010-07-14 | 三菱电机株式会社 | Double-cylinder rotary sealing type compressor manufacturing method |
| WO2009062365A1 (en) * | 2007-11-17 | 2009-05-22 | Guang Dong Mei Zhi Refrigeration Equipment Co., Ltd | A suction device for capacity-controlled rotary compressor |
| CN105134594A (en) * | 2015-08-24 | 2015-12-09 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN110925203A (en) * | 2019-12-17 | 2020-03-27 | 广东美芝制冷设备有限公司 | Rotary double-cylinder air compression mechanism and double-cylinder single-suction air compressor |
| CN114483582A (en) * | 2021-12-31 | 2022-05-13 | 珠海格力电器股份有限公司 | Pump body structure, compressor, air conditioner and assembling method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101050767A (en) | 2007-10-10 |
| JP2005147093A (en) | 2005-06-09 |
| CN100408859C (en) | 2008-08-06 |
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