CN214247604U - Variable displacement SE series compressor - Google Patents

Abstract

The utility model discloses a variable displacement SE series compressor, which comprises a shell, a cylinder body, a rotating shaft, a variable displacement driving device, a rear cover, a front cover, a valve block, an air inlet valve port and an air outlet valve port, wherein the cylinder body is integrally formed at one end of the inner wall of the shell, six compression cavities are equidistantly formed in the cylinder body, the middle part of the cylinder body is rotatably connected with the rotating shaft through a bearing, and the variable displacement driving device is installed at one end of the rotating shaft, the valve core and the spring buffer the gas, so that the noise and vibration during air suction can be greatly reduced, and the service life is prolonged.

Description

Variable displacement SE series compressor

Technical Field

The utility model relates to a become discharge capacity SE series compressor technical field, specifically be a become discharge capacity SE series compressor.

Background

The automobile compressor is the core component of the whole automobile refrigeration system, and the main function of the automobile compressor is to convey and compress refrigerant vapor and ensure the normal operation of a refrigeration cycle. The performance of the compressor directly affects the operational performance, noise, vibration, maintenance, service life and other indexes of the refrigeration system. At present, a car, a medium-sized and small-sized passenger car and a small-sized truck are generally in a direct connection type, namely, an automobile air conditioner compressor is arranged on one side of an automobile engine and driven by the power of a main engine; the large bus is driven by an independent engine.

Air conditioning compressors are classified into a displacement type and a velocity type according to the principle of compressing refrigerant vapor. The automobile air conditioner compressor mainly adopts a volume type refrigeration compressor. The displacement compressor is a compressor in which a volume of vapor is forcibly compressed in a cylinder to increase the number of molecules per unit volume and increase the pressure.

The automotive air conditioning compressor can be generally divided into a reciprocating type compressor and a rotary type compressor according to different working modes, wherein the common reciprocating type compressor mainly comprises a crankshaft connecting rod type compressor and an axial piston type compressor, and the common rotary type compressor mainly comprises a rotary blade type compressor and a rotary scroll type compressor. In addition, through the technical development of recent decades, a corresponding variable displacement type is basically developed for each compressor, the application range is gradually popularized, and a common variable displacement compressor is a swash plate type compressor.

The inclined disc type compressor controls the inclined angle of the inclined disc through an internal control method, and the internal control valve mainly depends on a vacuum corrugated pipe arranged in a control valve to sense suction pressure and generates action under the suction pressure to control respective valve channels of a suction cavity, a rocker box, an exhaust cavity and the rocker box. The pressure in the rocker box is adjusted under the action of opening and closing of the valve channel, so that the angle of the swash plate is adjusted, the stroke of the piston is changed, and finally the refrigerating capacity is controlled.

However, when the existing variable displacement compressor is used, a plurality of pistons work simultaneously, although the displacement can be changed, the range of changing the displacement is small, and the energy required by the work of the compressor is still large under the condition of small power consumption, so that the oil consumption of an engine is increased;

when the compressor works, the suction inlet needs to suck air flow, when the air flow enters the compression cavity through the suction inlet, the generated noise is large, the air flow is disturbed to cause large vibration, and the service life of the compressor is shortened.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a variable displacement SE series compressor to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a variable displacement SE series compressor, includes casing, cylinder body, pivot, variable displacement drive arrangement, back lid, protecgulum, valve block, inlet valve mouth and outlet valve mouth, shells inner wall one end integrated into one piece has the cylinder body, and six compression chamber have been seted up to the inside equidistance of cylinder body, the cylinder body middle part is connected with the pivot through the bearing rotation, variable displacement drive arrangement is installed to pivot one end, the casing is close to the one end of cylinder body and is fixed with the back lid, back lid inner wall is fixed with the air inlet and exhaust device of adjustable discharge capacity, the one end that the back lid was kept away from to the casing is fixed with the protecgulum, the protecgulum middle part is fixed with the clutch that can finely tune the position, and clutch is connected with the pivot, the one end that the cylinder body is close to the back lid is fixed with the valve block, and is equipped with six inlet valve mouths and six outlet valve mouths on the valve block.

Preferably, the variable displacement drive device comprises a wobble plate, a limiting block, a swash plate, a driving arm, a connecting rod and a piston, wherein the wobble plate is connected to the middle of the rotating shaft in a rotating mode through a spherical shaft, the limiting block is fixed on the inner wall of the shell, the limiting block is connected with the wobble plate in a sliding mode, the wobble plate is connected with the swash plate in a rotating mode through a thrust bearing, the driving arm is fixed to one end, close to the wobble plate, of the rotating shaft, one end of the driving arm is hinged to the connecting rod, one end of the connecting rod is hinged to the swash plate, the connecting rod is connected to one side of the wobble plate in a rotating mode through a universal ball head, one end, close to the cylinder body, of the connecting rod is connected with the piston in a rotating mode through the universal ball head, and the piston is connected with the inner wall of the compression cavity in a sliding mode.

Preferably, advance exhaust apparatus and include spacer ring, pressure release pipe, blast pipe, solenoid valve, suction pipe and the pipe of impressing, back lid middle part is fixed with the spacer ring, spacer ring inner wall equidistance is fixed with three pressure release pipe, and is three the pressure release pipe communicates with three gas vent on the valve block respectively, pressure release pipe one end is fixed with the blast pipe, lid and external intercommunication after the pressure release pipe one end passes, the one end that the back lid was passed to the pressure release pipe and blast pipe one end all are fixed with the solenoid valve, the back lid outside is fixed with suction pipe and the pipe of impressing in proper order, suction pipe and back lid intercommunication, and the pipe of impressing and spacer ring intercommunication.

Preferably, the clutch device comprises a fixed sleeve, a sliding barrel, a fixed ring, a belt pulley, an annular groove, an electromagnetic coil, a connecting plate, an elastic sheet, a sucker, a belt pulley disc and an internal thread sleeve, the middle part of the front cover is fixed on the fixed sleeve, the rotating shaft is rotationally connected with the fixed sleeve through a bearing, one end of the outer side of the fixed sleeve is arranged in a square shape, the square end sleeve of the fixed sleeve is provided with the sliding barrel, the inner wall of the sliding barrel is square, one end of the outer side of the sliding barrel, which is close to the front cover, is fixedly provided with the fixed ring, the outer side of the sliding barrel is rotationally connected with the belt pulley through the bearing, one side of the belt pulley, which is close to the fixed ring, is provided with the annular groove, one side of the fixed ring, which is close to the belt pulley, is fixedly provided with the electromagnetic coil, one end of the rotating shaft is fixedly provided with the connecting plate, the elastic sheet is equidistantly fixed on one side of the connecting plate, and one ends of the four elastic sheets are fixedly provided with the sucker, the belt pulley is fixed with the band pulley dish near the one end of sucking disc, the one end outside that the fixed sleeve is close to the protecgulum is equipped with the screw thread, fixed sleeve's screw thread end threaded connection has the internal thread sleeve, and the internal thread sleeve passes through the bearing and is connected with the smooth section of thick bamboo rotation.

Preferably, friction layers are embedded on the sides, close to each other, of the belt wheel disc and the suckers.

Preferably, the outer side of the internal thread sleeve is arranged in a hexagon shape.

Preferably, a filter screen is fixed on the inner wall of one end of the pressure relief pipe.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses an air inlet and exhaust device, reducible half displacement of piston, and not conflict with variable displacement drive arrangement, through reducing the required moment of torsion of the reducible drive pivot of piston work, reduce the torque power who divides from the engine, and then reduce the oil consumption of engine, and make things convenient for people to adjust the position of belt pulley, so that align with the drive wheel of engine, and through the suction tube installation stabilizer valve at the compressor, cross case and spring to gaseous buffering, noise and vibrations when breathing in can be reduced greatly, and service life is prolonged.

Drawings

FIG. 1 is a schematic view of the overall cross-sectional structure of the present invention;

FIG. 2 is a schematic cross-sectional view of the variable displacement driving apparatus of the present invention;

fig. 3 is a schematic sectional view of the clutch device of the present invention;

FIG. 4 is a schematic sectional view of the air inlet and outlet device of the present invention;

in the figure: 1. a housing; 2. a cylinder body; 3. a rotating shaft; 4. a variable displacement drive; 41. a wobble plate; 42. A limiting block; 43. a swash plate; 44. a drive arm; 45. a connecting rod; 46. a connecting rod; 47. a piston; 5. A rear cover; 6. an air inlet and outlet device; 61. a spacer ring; 62. a pressure relief pipe; 63. an exhaust pipe; 64. an electromagnetic valve; 65. a suction tube; 66. pressing the tube in; 7. a front cover; 8. a clutch device; 81. fixing the sleeve; 82. a slide cylinder; 83. a fixing ring; 84. a belt pulley; 85. an annular groove; 86. an electromagnetic coil; 87. a connecting plate; 88. A spring plate; 89. a suction cup; 810. a pulley disc; 811. an internally threaded sleeve; 9. a valve plate; 10. an air inlet valve port; 11. an air outlet valve port; 12. and (4) a filter screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 and 2, a variable displacement SE series compressor in the drawings comprises a casing 1, a cylinder 2, a rotating shaft 3, a variable displacement driving device 4, a rear cover 5, a front cover 7, a valve plate 9, an air inlet valve port 10 and an air outlet valve port 11, wherein the cylinder 2 is integrally formed at one end of the inner wall of the casing 1, six compression cavities are equidistantly formed in the cylinder 2, the rotating shaft 3 is rotatably connected to the middle of the cylinder 2 through a bearing, the variable displacement driving device 4 is installed at one end of the rotating shaft 3, the rear cover 5 is fixed at one end of the casing 1 close to the cylinder 2, the air inlet and outlet device 6 with adjustable displacement is fixed at the inner wall of the rear cover 5, the front cover 7 is fixed at one end of the casing 1 far away from the rear cover 5, the clutch device 8 with a fine-adjustable position is fixed at the middle of the front cover 7, the clutch device 8 is connected with the rotating shaft 3, the valve plate 9 is fixed at one end of the cylinder 2 close to the rear cover 5, and the valve plate 9 is provided with six inlet valve ports 10 and six outlet valve ports 11.

Referring to fig. 2, the variable displacement driving device 4 includes a wobble plate 41, a limiting block 42, a swash plate 43, a driving arm 44, a connecting rod 45, a connecting rod 46 and a piston 47, the wobble plate 41 is rotatably connected to the middle of the rotating shaft 3 through a spherical shaft, the limiting block 42 is fixed to the inner wall of the housing 1, the limiting block 42 is slidably connected to the wobble plate 41, the wobble plate 41 is rotatably connected to the swash plate 43 through a thrust bearing, the driving arm 44 is fixed to one end of the rotating shaft 3 close to the wobble plate 41, one end of the driving arm 44 is hinged to the connecting rod 45, one end of the connecting rod 45 is hinged to the swash plate 43, one side of the wobble plate 41 is rotatably connected to the connecting rod 46 through a universal ball, one end of the connecting rod 46 close to the cylinder 2 is rotatably connected to the piston 47 through a universal ball, and the piston 47 is slidably connected to the inner wall of the compression chamber.

Referring to fig. 2 and 4, the air intake and exhaust device 6 includes a spacer ring 61, a pressure relief pipe 62, an exhaust pipe 63, a solenoid valve 64, an intake pipe 65 and a press-in pipe 66, the spacer ring 61 is fixed in the middle of the rear cover 5, three pressure relief pipes 62 are fixed on the inner wall of the spacer ring 61 at equal intervals, the three pressure relief pipes 62 are respectively communicated with three exhaust ports 14 on the valve plate 9, the exhaust pipe 63 is fixed at one end of the pressure relief pipe 62, one end of the pressure relief pipe 62 is communicated with the outside through the rear cover 5, the solenoid valve 64 is fixed at one end of the pressure relief pipe 62 and one end of the exhaust pipe 63 through the rear cover 5, the intake pipe 65 and the press-in pipe 66 are sequentially fixed on the outer side of the rear cover 5, the intake pipe 65 is communicated with the rear cover 5, the press-in pipe 66 is communicated with the spacer ring 61, the piston 47 works in the compression cavity to achieve air intake and compression, and air is sucked into the rear cover 5 through the intake pipe, and enters the compression cavity through the inlet valve port 10, the compressed gas is discharged into the pressure relief pipe 62 through the outlet valve port 11, and the compressed gas is discharged into the inner wall of the spacer ring 61 through the outlet pipe 63 by opening the electromagnetic valve 64 on the outlet pipe 63, and is discharged through the press-in pipe 66, when the compressor needs full power operation, the electromagnetic valves 64 on the three pressure relief pipes 62 are closed, and the electromagnetic valves 64 on the outlet pipe 63 are opened, so that the six pistons 47 can compress air when working, when the compressor needs low power operation, the electromagnetic valve 64 on the pressure relief pipe 62 is opened, and the electromagnetic valve 64 on the outlet pipe 63 is closed, so that when the three pistons 47 work, the air compressed in the compression cavity by the pistons 47 is directly discharged through the pressure relief pipe 62, so that when the pistons 47 work, the resistance is only the friction force between the pistons 47 and the compression cavity, and the torque required for driving the rotating shaft 3 can be reduced, the torque power separated from the engine is reduced, and further the oil consumption of the engine is reduced.

Referring to fig. 3, the clutch device 8 includes a fixed sleeve 81, a sliding cylinder 82, a fixed ring 83, a belt pulley 84, an annular groove 85, an electromagnetic coil 86, a connecting plate 87, a spring plate 88, a suction cup 89, a belt pulley plate 810 and an internal thread sleeve 811, the middle portion of the front cover 7 is fixed to the fixed sleeve 81, the rotating shaft 3 is rotatably connected to the fixed sleeve 81 through a bearing, one end of the outer side of the fixed sleeve 81 is square, the sliding cylinder 82 with a square inner wall is sleeved on the square end of the fixed sleeve 81, one end of the outer side of the sliding cylinder 82 close to the front cover 7 is fixed with the fixed ring 83, the outer side of the sliding cylinder 82 is rotatably connected to the belt pulley 84 through a bearing, one side of the belt pulley 84 close to the fixed ring 83 is provided with the annular groove 85, one side of the fixed ring 83 close to the belt pulley 84 is fixed with the electromagnetic coil 86, and the electromagnetic coil 86 is located on the inner wall of the annular groove 85, a connecting plate 87 is fixed at one end of the rotating shaft 3, spring plates 88 are fixed at equal intervals on one side of the connecting plate 87, a sucking disc 89 is fixed at one end of each of the four spring plates 88, a belt pulley plate 810 is fixed at one end of the belt pulley 84 close to the sucking disc 89, threads are arranged on the outer side of one end of the fixed sleeve 81 close to the front cover 7, an internal thread sleeve 811 is connected to a thread end of the fixed sleeve 81 in a threaded manner, the internal thread sleeve 811 is rotatably connected with the sliding cylinder 82 through a bearing, when the position of the belt pulley 84 needs to be adjusted, the compressor does not need to be disassembled for reinstallation, the internal thread sleeve 811 can be rotated only through a wrench, the internal thread sleeve 811 can be moved at the thread end of the fixed sleeve 81, the sliding cylinder 82 can be driven to slide, the inner wall of the sliding cylinder 82 is arranged in a square manner, one end of the outer side of the fixed sleeve 81 is also arranged in a square manner, and the sliding cylinder 82 can only slide on the fixed sleeve 81 but can not rotate, the sliding slide 82 slides the pulley 84 and adjusts the position of the pulley 84 so that the pulley 84 is aligned with the drive wheel on the engine.

Referring to fig. 3, friction layers are embedded on the sides of the pulley disc 810 and the suction cups 89 close to each other, so that the friction force between the pulley disc 810 and the suction cups 89 is improved, and the transmission efficiency is improved.

Referring to fig. 3, the outer side of the internal thread sleeve 811 is hexagonal, so that a user can rotate the internal thread sleeve 811 by a wrench.

Referring to fig. 2, a filter screen 12 is fixed on an inner wall of one end of the pressure relief pipe 62 to prevent external impurities from entering an inner wall of the rear cover.

The working principle is as follows:

when the variable displacement driving device 4 is used, the air is sucked into the rear cover 5 through the suction pipe 65 and enters the compression cavity through the air inlet valve port 10, and the compressed air is discharged into the pressure discharge pipe 62 through the air outlet valve port 11, and by opening the solenoid valve 64 on the gas discharge pipe 63, the compressed gas is discharged into the inner wall of the spacer ring 61 through the gas discharge pipe 63, and is discharged through the press-in pipe 66, when the compressor requires full power, the solenoid valves 64 on the three pressure relief tubes 62 are closed, and the solenoid valve 64 on the exhaust pipe 63 is opened, so that the six pistons 47 can compress air while working, and the compressor requires less power to operate, by opening the solenoid valve 64 on the pressure relief tube 62, and the electromagnetic valve 64 on the exhaust pipe 63 is closed, so that when three pistons 47 do work, air compressed in the compression cavity by the pistons 47 is directly exhausted through the pressure relief pipe 62, so that when the pistons 47 work, the resistance is only the friction force between the pistons 47 and the compression cavity, thereby reducing the torque required for driving the rotating shaft 3, reducing the torque power separated from the engine and further reducing the oil consumption of the engine;

when the position of belt pulley 84 needs to be adjusted, the compressor does not need to be detached for reinstallation, only internal thread sleeve 811 is rotated through a wrench, and then internal thread sleeve 811 can move at the thread end of fixed sleeve 81, and then sliding cylinder 82 can be driven to slide, the inner wall of sliding cylinder 82 is in square arrangement, and one end of the outer side of fixed sleeve 81 is also in square arrangement, so that sliding cylinder 82 can only slide on fixed sleeve 81 and cannot rotate, sliding cylinder 82 drives belt pulley 84 to slide, and then the position of belt pulley 84 can be adjusted, and belt pulley 84 is aligned with the driving wheel on the engine.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a variable displacement SE series compressor, includes casing (1), cylinder body (2), pivot (3), variable displacement drive arrangement (4), back lid (5), protecgulum (7), valve block (9), inlet valve port (10) and outlet valve port (11), its characterized in that: a cylinder body (2) is integrally formed at one end of the inner wall of the shell (1), six compression cavities are formed in the cylinder body (2) at equal intervals, the middle part of the cylinder body (2) is rotationally connected with a rotating shaft (3) through a bearing, one end of the rotating shaft (3) is provided with a variable displacement driving device (4), a rear cover (5) is fixed at one end of the shell (1) close to the cylinder body (2), an air inlet and exhaust device (6) with adjustable displacement is fixed on the inner wall of the rear cover (5), a front cover (7) is fixed at one end of the shell (1) far away from the rear cover (5), a clutch device (8) with a position capable of being finely adjusted is fixed in the middle of the front cover (7), and the clutch device (8) is connected with the rotating shaft (3), one end of the cylinder body (2) close to the rear cover (5) is fixed with a valve plate (9), and the valve plate (9) is provided with six air inlet valve ports (10) and six air outlet valve ports (11).

2. A variable displacement SE series compressor as claimed in claim 1, wherein: the variable displacement driving device (4) comprises a swing disc (41), a limiting block (42), a swash plate (43), a driving arm (44), a connecting rod (45), a connecting rod (46) and a piston (47), wherein the middle part of the rotating shaft (3) is connected with the swing disc (41) through a spherical shaft in a rotating manner, the inner wall of the shell (1) is fixed with the limiting block (42), the limiting block (42) is connected with the swing disc (41) in a sliding manner, the swing disc (41) is rotatably connected with the swash plate (43) through a thrust bearing, the driving arm (44) is fixed at one end, close to the swing disc (41), of the rotating shaft (3), one end of the driving arm (44) is hinged with the connecting rod (45), one end of the connecting rod (45) is hinged with the swash plate (43), one side of the swing disc (41) is rotatably connected with the connecting rod (46) through a universal ball head, one end, close to the cylinder body (2), of the connecting rod (46) is rotatably connected with the piston (47) through the universal ball head, and the piston (47) is connected with the inner wall of the compression cavity in a sliding way.

3. A variable displacement SE series compressor as claimed in claim 1, wherein: the air inlet and outlet device (6) comprises a spacer ring (61), a pressure relief pipe (62), an exhaust pipe (63), an electromagnetic valve (64), a suction pipe (65) and a press-in pipe (66), a spacing ring (61) is fixed in the middle of the rear cover (5), three pressure relief pipes (62) are fixed on the inner wall of the spacing ring (61) at equal intervals, the three pressure relief pipes (62) are respectively communicated with three exhaust ports (14) on the valve plate (9), an exhaust pipe (63) is fixed at one end of the pressure relief pipe (62), one end of the pressure relief pipe (62) passes through the rear cover (5) and is communicated with the outside, an electromagnetic valve (64) is fixed at one end of the pressure relief pipe (62) which penetrates through the rear cover (5) and one end of the exhaust pipe (63), a suction pipe (65) and a press-in pipe (66) are sequentially fixed on the outer side of the rear cover (5), the suction pipe (65) is communicated with the rear cover (5), and the press-in pipe (66) is communicated with the spacer ring (61).

4. A variable displacement SE series compressor as claimed in claim 1, wherein: the clutch device (8) comprises a fixed sleeve (81), a sliding cylinder (82), a fixed ring (83), a belt pulley (84), an annular groove (85), an electromagnetic coil (86), a connecting plate (87), an elastic sheet (88), a sucker (89), a belt pulley disc (810) and an internal thread sleeve (811), the middle part of the front cover (7) is fixed on the fixed sleeve (81), the rotating shaft (3) is rotatably connected with the fixed sleeve (81) through a bearing, one end of the outer side of the fixed sleeve (81) is arranged in a square shape, the square end of the fixed sleeve (81) is sleeved with the sliding cylinder (82) with the inner wall in a square shape, the fixed ring (83) is fixed at one end, close to the front cover (7), of the outer side of the sliding cylinder (82) is rotatably connected with the belt pulley (84) through the bearing, the annular groove (85) is formed in one side, close to the fixed ring (83), of the belt pulley (84), one side that solid fixed ring (83) are close to belt pulley (84) is fixed with solenoid (86), and solenoid (86) are located ring channel (85) inner wall, pivot (3) one end is fixed with connecting plate (87), connecting plate (87) one side equidistance is fixed with shell fragment (88), four shell fragment (88) one end is fixed with sucking disc (89), the one end that belt pulley (84) are close to sucking disc (89) is fixed with band pulley dish (810), the one end outside that solid fixed sleeve (81) are close to protecgulum (7) is equipped with the screw thread, the screw thread end threaded connection of solid fixed sleeve (81) has interior thread bush (811), and interior thread bush (811) rotate with slide cartridge (82) through the bearing and be connected.

5. A variable displacement SE series compressor as claimed in claim 4, wherein: and friction layers are embedded on the mutually close sides of the belt wheel disc (810) and the suction disc (89).

6. A variable displacement SE series compressor as claimed in claim 4, wherein: the outer side of the internal thread sleeve (811) is arranged in a hexagon shape.

7. A variable displacement SE series compressor as claimed in claim 3, wherein: and a filter screen (12) is fixed on the inner wall of one end of the pressure relief pipe (62).

Images