CN101315070B

CN101315070B - Compressor

Info

Publication number: CN101315070B
Application number: CN2008101093756A
Authority: CN
Inventors: 林权洙; 尹德彬; 金珉圭; 李正宰
Original assignee: Halla Climate Control Corp
Current assignee: Hanon Systems Corp
Priority date: 2007-06-01
Filing date: 2008-06-02
Publication date: 2011-02-09
Anticipated expiration: 2028-06-02
Also published as: CN101315070A; KR20080106007A; US20080298980A1; KR100917449B1

Abstract

Disclosed is a compressor in which, in correspondence to a point in time that the piston is reached to a bottom dead center to start compression of the refrigerant, the outlet of the main refrigerant suction channel is closed by an inner wall of the cylinder block so that the inlet of the suction passageway of the cylinder block and the outlet of the main refrigerant suction channel of the drive shaft are discommunicated.

Description

Compressor

Technical field

The present invention relates to compressor, and relate more specifically to a kind of fixed capacity oblique tray type compressor, wherein piston is connected in the rotation of swash plate of transmission shaft and to-and-fro motion according to integral body, and use the rotation suction valve structure, wherein the refrigeration agent in swash plate chamber sucks transmission shaft is sequentially sucked each cylinder-bore according to the rotation of transmission shaft.

Background technique

Usually, compressor sucks from the refrigerant gas of vaporizer discharging after finishing evaporation; Under high temperature and high pressure, refrigerant gas is converted to the refrigerant gas that can liquefy easily; Then this refrigerant gas is disposed to condenser.This compressor is divided into variety classes, oblique tray type compressor for example, wherein piston to-and-fro motion by the rotation of inclination swash plate; Scroll compressor, its rotation by two vortexs is compressed; Rotary vane compressor, it compresses by rotation blade, or the like.

Reciprocal compressor according to the to-and-fro motion compressed refrigerant of piston, except that oblique tray type compressor, also comprise crank-type compressor (crank type compressor), wobble plate compressor etc., and oblique tray type compressor is divided into fixed capacity oblique tray type compressor, variable capacity oblique tray type compressor etc. according to its use.

Fig. 1 shows conventional compressor, and it is for the example of fixed capacity oblique tray type compressor and adopted the rotation suction valve structure.

As shown, conventional compressor 1 is provided with: forward and backward

housing

10 and 11;

Cylinder block

20 and 21, it is connected to the inside of forward and backward

housing

10 and 11 and is formed with inner swash plate chamber 22 and a plurality of cylinder-bore 23; Transmission shaft 30, the swash plate 31 that rotates in swash plate chamber integral body obliquely is connected to this transmission shaft; A plurality of pistons 40, it is according to the rotation of swash plate 31 and in cylinder-bore 23 reciprocates inside; And

valve unit

50 and 51, its be inserted in respectively forward and backward

housing

10 and 11 and

cylinder block

20 and 21 between.

In addition, main refrigerant suction passage 32 is formed in the transmission shaft 30, thereby the refrigeration agent that sucks from swash plate chamber 22 can be transferred to cylinder-bore 23, and main refrigerant suction passage 32 is formed in

cylinder block

20 and 21 with

many suction passages

25 and 26 that each cylinder-bore 23 is communicated with.

Adopt the detailed cyclic process in the conventional fixed capacity oblique tray type compressor that rotates suction valve structure as follows as mentioned above.

At first, refrigeration agent is supplied to the inside of swash plate chamber 22 from the outside, and when transmission shaft 30 rotation, the refrigeration agent that is supplied to swash plate chamber 22 sequentially is supplied to each cylinder-bore 23 via being formed on the main refrigerant suction passage 32 in the transmission shaft 30 and the

suction passage

25 and 26 of

cylinder block

20 and 21.

The inlet 33 of the main refrigerant suction passage 32 of transmission shaft 30 directly is communicated with swash plate chamber 22, and the suction chamber 60 that is communicated with main refrigerant suction passage 32 is formed on the rear portion of cylinder block 21.The inlet 33 of main refrigerant suction passage 32 can form the hub 31a that passes swash plate 31 and a side of transmission shaft 30.

In addition, Fig. 2 A is the sectional elevation along the line II-II among Fig. 1 intercepting, and wherein No. 3 piston arrives lower dead centres to be beginning compression, and Fig. 2 B is the concept map that the state of Fig. 2 A is shown.

As shown, the suction passage 26 of cylinder block 21 has width W.In addition, when observing about the clockwise direction of transmission shaft 30, the end 34a of the outlet 34 of main refrigerant suction passage 32 is positioned on the center line C1-C1 of section of suction passage 26.Here, alphanumeric A1 represents the opening angle of the outlet 34 of main refrigerant suction passage 32.

Therefore, the outlet 34 of the main refrigerant suction passage 32 in the suction passage 25 of cylinder block 20 and the transmission shaft 30 does not disconnect and being communicated with, and communicates with each other but arrive the time point that begins to compress at piston 40.Here, alphanumeric B represents the zone that suction passage 25 and main refrigerant suction passage 32 communicate with each other.

In other words, arrive the time point that begins to compress at piston 40, suction passage 25 communicates with each other with the inlet 34 of main refrigerant suction passage 32, has therefore reduced suction efficiency.

Summary of the invention

The purpose of this invention is to provide a kind of compressor that improves structure that has, so that improve the suction efficiency of refrigeration agent by the time point of control refrigeration agent suction cylinder-bore.

In order to realize above-mentioned and other purpose, the invention provides a kind of compressor, wherein the swash plate that rotates in the swash plate chamber in being formed at cylinder block integrally is connected to transmission shaft, be contained in piston in a plurality of cylinder-bore that are arranged in the transmission shaft periphery circlewise respectively according to the rotation of swash plate and to-and-fro motion, and the refrigeration agent that is drawn into the main refrigerant suction passage that is formed in the transmission shaft from swash plate is inhaled in each cylinder-bore via a plurality of suction passages that are formed in the cylinder block, so that the rotation according to transmission shaft makes the main refrigerant suction passage sequentially be communicated with each cylinder-bore, wherein, corresponding with an arrival lower dead centre in the piston with the time point of beginning compressed refrigerant, the outlet of main refrigerant suction passage is closed by the inwall of cylinder block, makes the outlet of inlet and the main refrigerant suction passage of transmission shaft of suction passage of cylinder block disconnect and is communicated with.

Preferably, at the time point of piston arrives lower dead centre, the end of the outlet of main refrigerant suction passage about the sense of rotation of transmission shaft on the inwall of cylinder block, between the adjacent suction passage of a suction passage corresponding with another with piston.

Preferably, at the time point of piston arrives lower dead centre, the end of the outlet of main refrigerant suction passage is on the sense of rotation of transmission shaft, and is corresponding with the end of the suction passage of cylinder block.

In addition, the section center line that is formed on the suction passage in the cylinder block can be about the plane of the longitudinal center line of the center line that comprises cylinder-bore and transmission shaft, at the sense of rotation of the transmission shaft predetermined angle that tilts.

This piston is a double-head piston, form a plurality of cylinder-bore in the both sides of swash plate chamber, form the outlet of the main refrigerant suction passage of at least one transmission shaft at each front side and rear side, so that with preceding corresponding, and in swash plate, form the refrigeration agent communication passage that swash plate chamber is communicated with the inlet of the main refrigerant suction passage of transmission shaft with cylinder-bore rear side.

Description of drawings

Fig. 1 is the sectional view of the example of conventional compressor.

Fig. 2 A is the sectional elevation along the intercepting of the line II-II among Fig. 1, and wherein No. 3 piston arrives lower dead centres are to begin compression.

Fig. 2 B is the concept map that the state of Fig. 2 A is shown.

Fig. 3 illustrates the perspective exploded view of compressor according to an embodiment of the invention.

Fig. 4 is the sectional view of the compressor among Fig. 3.

Fig. 5 A is the sectional elevation along the intercepting of the line V-V among Fig. 3, and wherein No. 3 piston arrives lower dead centres are to begin compression.

Fig. 5 B is the concept map that the state of Fig. 5 A is shown.

Fig. 6 A is the sectional elevation that compressor according to another embodiment of the present invention is shown, and wherein No. 3 piston arrives lower dead centres are to begin compression.

Fig. 6 B is the concept map that the state of Fig. 6 A is shown.

Embodiment

As shown in following example and Comparative Examples, reality of the present invention and presently preferred embodiments have been described.

Yet what it will be appreciated that is those skilled in the art after considering the disclosure, can make amendment within the spirit and scope of the present invention and improve.

Fig. 3 is the perspective exploded view that compressor according to a preferred embodiment of the invention is shown, and Fig. 4 is the sectional view of the compressor among Fig. 3.

As shown, compressor 100 is provided with transmission shaft 140 according to an embodiment of the invention, and the swash plate 150 of rotation integrally is connected to this transmission shaft 140 in swash plate chamber 132; Forward and

backward cylinder block

130 and 131 wherein rotatably is equipped with transmission shaft 140; A plurality of pistons 160, it is installed in the periphery of swash plate 150, and wherein base (shoe) 144 is got involved between the pistons 160, and piston 160 to-and-fro motion in the cylinder-bore 130a of swash plate chamber 132 both sides that are formed at forward and backward

cylinder block

130 and 131 and 131a; Forward and backward

housing

110 and 120, it is connected to the both sides of forward and backward

cylinder block

130 and 131, and is formed with

exhaust cavity

111 and 121 respectively; And

valve unit

170 and 180, its insert respectively forward and backward

cylinder block

130 and 131 and forward and backward

housing

110 and 120 between.

The swash plate 150 of rotation is connected to transmission shaft 140 obliquely in swash plate chamber 132, and in transmission shaft 140, form main refrigerant suction passage 141, it makes swash plate chamber 132 be communicated with cylinder-

bore

130a and 131a, makes the refrigeration agent that sucks swash plate chamber 132 be sent to cylinder-

bore

130a and 131a via swash plate 150.In other words, main refrigerant suction passage 141 is formed with inlet 142 so that be communicated with swash plate chamber 132, and is formed with outlet 143 so that be communicated with forward and backward

cylinder block

130 and 131 suction passage 135 separately.

The inlet 142 of main refrigerant suction passage 141 is communicated with swash plate chamber via refrigeration agent communication passage 151, and this refrigeration agent communication passage 151 is passed a side of the hub 150a of swash plate 150 and transmission shaft 140 and formed.Here, can only form the inlet 142 of a main refrigerant suction passage 141, perhaps can on opposite directions, form two inlets 142 in a side of transmission shaft 140.

The outlet 143 of main refrigerant suction passage 141 is formed on the both sides of main refrigerant suction passage 141 along opposite directions, refrigeration agent is sucked among each cylinder-

bore

130a and 131a of the both sides that are formed on swash plate chamber 132 simultaneously when transmission shaft 140 rotations allowing.That is to say, because piston 160 is along the opposite directions setting, the piston 160 that is connected to the periphery of swash plate 150 when swash plate 150 tilts is carried out identical suction or compression stroke, therefore should on opposite directions, form two outlets 143 of main refrigerant suction passage 141, to allow refrigeration agent is sucked simultaneously the cylinder-bore 130a and the 131a of the both sides that are formed on swash plate chamber 132.Certainly, 143 the direction of respectively exporting that is formed on main refrigerant suction passage 141 in the transmission shaft 140 can change according to the designing requirement such as number of piston 160 etc.

By being formed on the main refrigerant suction passage 141 in the transmission shaft 140, the refrigeration agent in the swash plate chamber 132 is supplied to cylinder-

bore

130a and 131a inside.At this moment, even in order still to supply the refrigeration agent of capacity during with high speed rotating at transmission shaft, can be additionally formed refrigeration agent undercurrent chamber 190 at the cylinder block rear side, and can in cylinder block 131, be additionally formed the auxiliary refrigerant suction passage 191 that swash plate chamber 132 is communicated with refrigeration agent undercurrent chamber 190.So when transmission shaft 140 during with high speed rotating, the refrigeration agent in the swash plate chamber 132 is supplied to cylinder-

bore

130a and 131a inside via auxiliary refrigerant suction passage 191 and main refrigerant suction passage 141.Therefore, supplied the refrigeration agent of capacity to improve performance.

In the compressor of the present invention of constructing as mentioned above, will describe preferred implementation of the present invention with reference to figure 3 to Fig. 5 B.Fig. 5 A is the sectional elevation along the line V-V among Fig. 3 intercepting, and wherein No. 3 pistons 160 arrive lower dead centres beginning compression, and Fig. 5 B is the concept map that the state of Fig. 5 A is shown.Here, to arrive lower dead centre based on No. 3 pistons 160 describes with the time point that begins compressed refrigerant, it is evident that it can be identical with the time point of beginning compressed refrigerant that this principle arrives lower dead centre about other piston (in Fig. 5 a, 1,2,4 with No. 5 pistons).

In order to improve the suction efficiency of refrigeration agent, corresponding with the time point of beginning compressed refrigerant with No. 3 piston 160 arrival lower dead centres, the inlet of the suction passage 135 of cylinder block 130 should disconnect with the outlet 143 of the main refrigerant suction passage 141 of transmission shaft 140 and being communicated with.

For this reason, as shown in Figure 5A and 5B, when the time point that arrives lower dead centres at piston 160 about the sense of rotation (clockwise direction) of transmission shaft 140 when observing, the end 143a of the outlet 143 of main refrigerant suction passage 141 is formed on the mobile position of sense of rotation (clockwise direction) from the section center line C3-C3 of the suction passage 135 of cylinder block 130 along transmission shaft 140.

Here, the section center line C3-C3 of the suction passage 135 of cylinder block 130 is center lines of the section (the section V-V among Fig. 3) that obtained of the suction passage 135 of Cutting Gas cylinder body 130 in the plane vertical with transmission shaft 140.In addition, section center line C3-C3 should be set on the plane (P among Fig. 3) of longitudinal center line C-C of the center line that comprises cylinder-bore 130a and transmission shaft 140.Here, alphanumeric A2 represents the opening angle of the outlet 143 of main refrigerant suction passage 141.

By such setting, arrive the time point of lower dead centre at piston 160, the inwall of cylinder block 130 stops the outlet 143 of the main refrigerant suction passage 141 of transmission shaft 140, so the suction passage 135 of cylinder block 130 is communicated with outlet 143 disconnections of the main refrigerant suction passage 141 of transmission shaft 140.

Hereinafter, will compressor according to another embodiment of the present invention be described.Fig. 6 A is the sectional elevation that compressor 200 according to another embodiment of the present invention is shown, and wherein No. 3 pistons 260 (being referred to as hereinafter, " piston ") arrive lower dead centre to begin compression.Here, the alphanumeric representation identical with the alphanumeric shown in Fig. 3 and Fig. 4 has the identical parts of same structure and function, therefore will no longer repeat identical explanation.In addition, will no longer the 26S Proteasome Structure and Function identical with previous embodiment be described, and only different 26S Proteasome Structure and Functions is described.

With reference to figure 3,4,6A and 6B, in order to arrive the time point of lower dead centre with the beginning compressed refrigerant at piston 260, the inlet of the suction passage 135 of cylinder block 230 is communicated with outlet 243 disconnections of the main refrigerant suction passage 241 of transmission shaft 240, the section center line C4-C4 that is formed on the suction passage 235 in cylinder-

bore

230 and 231 can be about the sense of rotation predetermined oblique angle of plane P along transmission shaft 240, and wherein plane P comprises the center line C2-C2 of cylinder-bore 230a and the longitudinal center line C-C of transmission shaft 240.Here, alphanumeric A3 represents the opening angle of the outlet 243 of main refrigerant suction passage 241.

Although in the mode of execution of the invention described above, piston is a double-head piston, be formed with a plurality of cylinder-bore in the both sides of swash plate chamber, and be formed with at least one main refrigerant suction passage respectively with each cylinder-bore corresponding to front side and rear side in each front side and rear side, yet these only are exemplary, and feature of the present invention also can be applicable to be provided with single head pison and adopts the fixed capacity oblique tray type compressor that rotates suction valve structure.

In addition, in embodiments of the present invention, although be formed on the inlet the 142, the 242nd of the main refrigerant suction passage 141,241 in the transmission shaft, pass the hub 150a of swash plate 150 and a side of transmission shaft 140,240 and form, yet feature of the present invention also can be applicable to a class compressor, the mode that directly is communicated with side of transmission shaft 30 and swash plate chamber 22 of the inlet 33 of main refrigerant suction passage 32 and forming as shown in fig. 1 wherein, and the suction chamber 60 that is communicated with main refrigerant suction passage 32 is formed on the rear side of cylinder block 21.

Industrial applicibility

According to aforesaid compressor of the present invention, since with the time point identical time point of piston arrives lower dead centre to begin to compress, the outlet of the main refrigerant suction passage of transmission shaft disconnects with the suction passage of cylinder block and being communicated with, so can improve the suction efficiency of refrigeration agent.

Those skilled in the art will appreciate that disclosed design can be easily as the modification of other mode of execution of realizing identical purpose of the present invention or the basis of design with embodiment in aforementioned specification.Those skilled in the art also will understand, and this equivalent mode of execution does not depart from the spirit and scope of the invention that propose in the claims.

Claims

1. compressor, wherein be formed at cylinder block (130,131,230,231) swash plate (150) of rotation integrally is connected to transmission shaft (140 in Nei the swash plate chamber (132), 240), be contained in respectively and be arranged in described transmission shaft (140 circlewise, 240) Wai Wei a plurality of cylinder-bore (130a, 131a, 230a, 231a) Nei piston is according to the rotation of described swash plate (150) and to-and-fro motion, and be drawn into from described swash plate chamber (132) and be formed on described transmission shaft (140,240) Nei main refrigerant suction passage (141,241) refrigeration agent in is via being formed on described cylinder block (130,131,230,231) many suction passages (135 in, 235) be inhaled into each described cylinder-bore (130a, 131a, 230a, 231a), so that according to described transmission shaft (140,240) rotation makes described main refrigerant suction passage (141,241) with each described cylinder-bore (130a, 131a, 230a, 231a) sequentially be communicated with

Wherein, with described piston (160,260) an arrival lower dead centre in is corresponding with the time point of beginning compressed refrigerant, described main refrigerant suction passage (141,241) outlet (143,243) by described cylinder block (130,131,230,231) inwall is closed, make described cylinder block (130,131,230,231) described suction passage (135,235) inlet and described transmission shaft (140,240) described main refrigerant suction passage (141,241) described outlet (143,243) disconnect connection

Described piston (160,260) is a double-head piston, forms a plurality of described cylinder-bore (130a, 131a, 230a, 231a) in the both sides of described swash plate chamber (132),

Form the described outlet (143,243) of the described main refrigerant suction passage (141,241) of at least one described transmission shaft (140,240) at each front side and rear side, so that it is corresponding with the described cylinder-bore (130a, 131a, 230a, 231a) of front side that is positioned at described transmission shaft (140,240) and rear side

In described swash plate, form the refrigeration agent communication passage (151) that described swash plate chamber (132) is connected with the described inlet (142,242) of described main refrigerant suction passage (141,241),

Wherein arrive the described time point of described lower dead centre at described piston (160), the end (143a, 243a) of the described outlet (143,243) of described main refrigerant suction passage (141,241) is positioned at about the sense of rotation of described transmission shaft (140) on the inwall of described cylinder block (130,131,230,231) and between the adjacent suction passage with another of the corresponding suction passage of described piston (160) (135,235), and

Wherein arrive the described time point of described lower dead centre at described piston (160), the end (143a, 243a) of the described outlet (143,243) of described main refrigerant suction passage (141,241) is corresponding with the end of the described suction passage (135,235) of described cylinder block (130,131,230,231) on the described sense of rotation of described transmission shaft (140).

2. compressor as claimed in claim 1, wherein be formed on the plane (P) of the section center line (C4-C4) of the described suction passage (235) in the described cylinder block (230,231), at the described sense of rotation of described transmission shaft (240) predetermined angle that tilts with respect to the longitudinal center line (C-C) of center line that comprises described cylinder-bore (230a) (C2-C2) and described transmission shaft (240).