CN108915983A - A kind of Bidirectional tilting tray type automobile air conditioner compressor and compressor driving spindle - Google Patents

Abstract

The invention provides a two-way swash plate type automotive air-conditioning compressor and a drive shaft for the compressor. A front cover, a rear cover, and a cylinder composed of a front cylinder and a rear cylinder, the cylinder is sealed by the front cover and the rear cover; an air suction port is arranged on the outer periphery of the rear cylinder, and the front cover and the rear cylinder are sealed. Air outlets are respectively arranged on the back cover; the drive spindle includes a hollow cavity, the hollow cavity is provided with a rear air outlet from one end close to the back cover and extends to the other end, and in the cylinder, the drive The main shaft is radially provided with a first air intake slot and a second air intake slot penetrating to the hollow cavity; at positions corresponding to the front cylinder block, first front air intake slots penetrating to the hollow cavity are respectively provided. Air outlet and second front air outlet. The invention makes full use of the rotation action and centrifugal force of the driving main shaft, realizes the separation of oil and gas, makes the gas without refrigerating oil enter into the pipeline of the air conditioning system, and greatly improves the service life of the automobile refrigeration system.

Description

A bidirectional swash plate type automotive air-conditioning compressor and a drive shaft for the compressor

technical field

The invention relates to an automobile air-conditioning refrigeration device, in particular to a two-way swash plate type automobile air-conditioning compressor and a drive shaft for the compressor.

Background technique

The piston type compressor has a plurality of pistons, and each piston is respectively arranged in a cylinder hole on the circumference of a rotary shaft, so that the rotation of the rotary shaft is converted into a reciprocating linear motion of the piston through a cam.

The Chinese patent with the application number 201510855596.8 discloses a two-way swash plate fixed-displacement compressor for an automobile air conditioner and a drive shaft for the compressor, including: a front cover, a rear cover, and a front cylinder body and a rear cylinder body. The cylinder body is sealed by the front cover and the rear cover; the drive shaft runs through the front cover, the front cylinder block and the rear cylinder body, and a swash plate is arranged on the drive shaft, and the swash plate A piston is connected by a sliding shoe; the suction port is located on the back cover; wherein: the drive shaft includes a hollow cavity, and the hollow cavity opens from one end close to the back cover to the other end extending, and are respectively provided with notches penetrating to the hollow cavity at positions corresponding to the front cylinder body and the rear cylinder body. Chinese Patent Application No. 02151827.0 discloses a refrigerant suction mechanism used in a piston type compressor, which includes a cam member mounted on a rotary shaft so as to rotate integrally with the shaft. There is an extended refrigerant channel inside the rotary shaft. The cam member converts rotation of the rotary shaft into linear reciprocating motion of a piston within a cylinder bore disposed about the rotary shaft. Each cylinder bore and associated piston define a compression chamber. When the piston is in the suction stroke, compression stroke, and discharge stroke, the refrigerant is respectively introduced into the compression chamber, compressed in the compression chamber, and discharged from the compression chamber. When the piston is in the discharge stroke, a reaction force is generated in the compression chamber and acts on the piston. The rotary valve adjacent to the rotary shaft has an introduction passage communicating with the refrigerant passage. The suction passage communicates with each cylinder bore at one end thereof, and is selectively connected to or disconnected from the introduction passage according to the rotation of the rotary valve. The reaction force acting on the piston is transmitted to the rotary valve and pushes the rotary valve to the other end of the suction passage, which communicates with the cylinder bore.

Although the above two compressors solve the problem of uneven force, their efficiency is low. At the same time, before the compressor discharges the gas, the oil and gas are not separated, so that the gas containing refrigerated oil enters the air conditioning system pipeline. Desperately needs to be improved.

Contents of the invention

In order to solve the above problems, the present invention provides a two-way swash plate type automotive air-conditioning compressor and a drive shaft for the compressor. The automobile air-conditioning compressor of the present invention can simultaneously complete two-way suction and discharge actions on the left and right sides, thereby greatly improving the air compression efficiency. At the same time, the suction port arranged laterally in the present invention is combined with the air inlet notch arranged radially, and under the premise of not affecting the air entering the two compression chambers of the front chamber and the rear chamber, the rotation action and centrifugal force of the driving spindle are fully utilized, The separation of oil and gas is realized, so that the gas without refrigerated oil enters the pipeline of the air conditioning system, which greatly improves the life of the automobile refrigeration system.

In order to achieve the technical purpose, the technical solution of the present invention is: a two-way swash plate type automotive air-conditioning compressor, comprising:

a front cover, a rear cover, and a cylinder composed of the front cylinder and the rear cylinder, the cylinder being sealed by the front cover and the rear cover;

The drive shaft runs through the front cover, the front cylinder block and the rear cylinder block, and a swash plate is arranged on the drive shaft, and the swash plate is connected to the piston through a sliding shoe;

An air suction port is provided on the outer periphery of the rear cylinder, and an air outlet is provided on the front cover and the rear cover respectively;

The drive spindle includes a section of hollow cavity, the hollow cavity opens a rear air outlet from one end close to the rear cover and extends to the other end, and in the cylinder, the drive spindle radially opens to The first air intake notch and the second air intake notch of the hollow cavity; at the positions corresponding to the front cylinder body, there are respectively provided through the first front air outlet and the second front air outlet of the hollow cavity. air outlet;

The piston is installed between the front cylinder and the rear cylinder, and the two ends of the piston respectively form a front cavity and a rear cavity corresponding to the front cylinder and the rear cylinder.

Further, five pistons and five pairs of sliding shoes are arranged on the circumference of the swash plate, the pistons are of equal length, and the middle parts of the pistons are connected to the swash plate by rotation of the sliding shoes.

Further, the front cylinder body and the rear cylinder body are respectively provided with five holes, and the two ends of the piston are clamped in the holes.

Further, the axes of the first air intake slot and the second air intake slot are parallel in space, and the first air intake slot and the second air intake slot are respectively located at the front and back of the swash plate.

Further, the axes of the first air outlet notch and the second air outlet notch coincide with the same spatial straight line.

Further, the self-axis space of the first air inlet slot and the first air outlet slot is vertical, and the self-axis space of the second air intake slot and the second air outlet slot is vertical.

A driving shaft for an automobile air-conditioning compressor, the driving shaft includes a section of hollow cavity, the hollow cavity is provided with a rear air outlet from one end close to the rear cover and extends to the other end, and is inside the cylinder , the drive spindle is radially provided with a first air intake notch and a second air intake notch penetrating to the hollow cavity; Body first front air outlet and second front air outlet;

Further, the axes of the first air intake slot and the second air intake slot are parallel in space, and the first air intake slot and the second air intake slot are respectively located at the front and back of the swash plate.

Further, the axes of the first air outlet notch and the second air outlet notch coincide with the same spatial straight line.

Further, the self-axis space of the first air inlet slot and the first air outlet slot is vertical, and the self-axis space of the second air intake slot and the second air outlet slot is vertical.

The beneficial effects of the present invention are:

The automobile air-conditioning compressor of the present invention can simultaneously complete two-way suction and discharge actions on the left and right sides, thereby greatly improving the air compression efficiency. At the same time, the suction port arranged laterally in the present invention is combined with the air inlet notch arranged radially, and under the premise of not affecting the air entering the two compression chambers of the front chamber and the rear chamber, the rotation action and centrifugal force of the driving spindle are fully utilized, The separation of oil and gas is realized, so that the gas without refrigerated oil enters the pipeline of the air conditioning system, which greatly improves the life of the automobile refrigeration system.

Description of drawings

Fig. 1 is the overall structure schematic diagram of bidirectional swash plate type automobile air-conditioning compressor of the present invention;

Fig. 2 is a sectional view corresponding to Fig. 1 of the present invention;

Fig. 3 is one of the schematic diagrams of the overall structure of the cylinder body of the present invention;

Fig. 4 is the second schematic diagram of the overall structure of the cylinder body of the present invention;

Fig. 5 is a schematic structural view of the front cylinder body of the present invention;

Fig. 6 is a schematic diagram of the structure of the rear cylinder body of the present invention;

7 is a schematic diagram of the overall structure of the front cover of the present invention;

Fig. 8 is a schematic diagram of the overall structure of the rear cover of the present invention;

Fig. 9 is a schematic diagram of the explosion structure of the front cover corresponding to Fig. 8 of the present invention;

Fig. 10 is a schematic diagram of the explosion structure of the rear cover corresponding to Fig. 9 of the present invention;

Fig. 11 is a schematic diagram of the installation structure of the swash plate of the present invention on the drive spindle;

Fig. 12 is a schematic diagram of the installation structure of the piston on the swash plate of the present invention;

Fig. 13 is a structural schematic diagram of the sliding shoe installation structure of the present invention;

Fig. 14 is one of the structural schematic diagrams of the drive spindle of the present invention;

Fig. 15 is the second structure schematic diagram of the driving spindle of the present invention;

Fig. 16 is a schematic diagram of the cross-sectional structure of the A-A plane of the driving spindle in Fig. 14 of the present invention;

Fig. 17 is a schematic diagram of the B-B plane sectional structure of the driving spindle in Fig. 15 of the present invention.

Detailed ways

The technical solution of the present invention will be clearly and completely described below.

It should be noted that, in order to illustrate the structural setting relationship of the present invention, the "left", "right", "front", and "rear" mentioned in the present invention are all for the position of the automobile air-conditioning compressor in Fig. 1 , and should not be construed as a limitation of the present invention.

As shown in Figure 1 and Figure 2, a two-way swash plate type automotive air-conditioning compressor includes:

Front cover 1, rear cover 2 and the cylinder body that is made of front cylinder body 3 and rear cylinder body 4, described cylinder body is sealed by described front cover 1, rear cover 2; Preferably, as Fig. 7,8,9, As shown in 10, inside the front cover and the rear cover, a suction valve plate 104, a front valve plate 103, an exhaust valve plate 102, and a spacer 101 are laid sequentially from outside to inside. The suction valve plate 104 and the exhaust valve plate 102 are respectively provided with holes for assisting the suction and exhaust in conjunction with the action of the piston.

The driving main shaft 5 runs through the front cover 1, the front cylinder body 3 and the rear cylinder body 4, and a swash plate 6 is arranged on the driving main shaft 5, as shown in FIG. 7 is connected to the piston 8;

An air inlet 401 is arranged on the outer periphery of the rear cylinder body 4, and an air outlet 201 is respectively arranged on the front cover and the rear cover;

The drive spindle includes a section of hollow cavity, the hollow cavity is provided with a rear air outlet 505 from one end close to the rear cover 2 and extends to the other end thereof, and in the cylinder, the drive spindle 5 radially The first air intake notch 503 and the second air intake notch 504 penetrating to the hollow cavity are provided; the first front outlets penetrating to the hollow cavity are respectively provided at positions corresponding to the front cylinder block. Air port 501 and the second front air outlet port 502; It should be noted that when the Zhuzhou 5 is driven to rotate at high speed to drive the piston to move left and right, the radially arranged first air intake slot 503 and the second air intake slot 504 are in addition to The oil-gas mixture can be allowed to enter the hollow cavity, and the refrigerated oil can be thrown away into the lower low-pressure cavity by using the rotating centrifugal force, so as to realize the separation of oil and gas, so that the gas without refrigerated oil can enter the pipeline of the air conditioning system, which improves the refrigeration efficiency. system lifetime.

The piston 8 is installed between the front cylinder 3 and the rear cylinder 4, and the two ends of the piston respectively form a front chamber 9 and a rear chamber 10 corresponding to the front cylinder and the rear cylinder. As shown in Figure 2, the piston moves between the front cavity and the rear cavity; as shown in Figure 2, the five pistons and the rear cylinder 4 form a low-pressure cavity in the circumferential direction, mixed with refrigerated oil After the gas enters the low-pressure cavity from the suction port 401, it enters the hollow cavity from the first intake slot 503 and the second intake slot 504; The air outlet 501 and the second front air outlet 502 suck air, and the rear chamber 10 exhausts air from the air outlet 201 on the rear cover 2; Exhaust, the rear cavity 10 sucks air from the rear air outlet 505 . That is to say, one piston of the present invention can simultaneously complete two-way suction and exhaust actions on the left and right sides, which greatly improves the compression efficiency.

Further, as shown in Figure 12 and Figure 13, five pistons 8 and five pairs of sliding shoes 7 are arranged on the circumference of the swash plate 6. Plate 6. When the swash plate rotates, it can drive five pistons to move left and right in five beats.

Further, as shown in FIG. 3 and FIG. 4 , FIG. 5 and FIG. 6 , five holes 402 are respectively opened in the front cylinder body and the rear cylinder body, and the two ends of the piston are clamped in the holes. The hole 402 and the piston, the front cover or the rear cover form the front chamber 9 and the rear chamber 10 , and the gas separated from oil and gas is compressed in the front chamber and the rear chamber and discharged from the gas outlet 401 .

Further, as shown in Figures 14-17, the axes of the first air intake slot 503 and the second air intake slot 504 are parallel in space, as shown in Figure 11, and the first air intake slot 503 and the second air intake notch 504 are respectively located at the front and rear of the swash plate 6 . The axes of the first air outlet notch 501 and the second air outlet notch 502 coincide with the same spatial straight line. The first air intake notch 503 and the second air intake notch 504 arranged as above, combined with the position setting of the five pistons on the swash plate, can make the rear chamber 10 exit from the rear in the leftward moving piston. The suction process of the air port 505 is more efficient.

Further, as shown in FIGS. 14-17 , the axes of the first air outlet notch 501 and the second air outlet notch 502 coincide with the same spatial straight line. The first air outlet notch 501 and the second air outlet notch 502 arranged as above, combined with the position setting of the five pistons on the swash plate, in the piston moving to the right, the front cavity 9 can be moved from the hollow cavity The inhalation process is more efficient.

Further, as shown in Figure 14-Figure 17, the self-axis space of the first air inlet slot 503 and the first air outlet slot 504 is vertical, and the second air inlet slot and the second air outlet slot The axis of the mouth itself is vertical in space. The positions of the first air outlet notch 501, the second air outlet notch 502, the first air inlet notch 503, and the first air outlet notch 504 are set in combination with the position of the piston on the swash plate, Size setting, in addition to achieving better oil and gas separation effect, can also achieve the smoothest and most efficient suction and exhaust efficiency.

A driving spindle for an automobile air-conditioning compressor, the driving spindle 5 includes a hollow cavity, and the hollow cavity is provided with a rear air outlet 505 from one end close to the rear cover and extends to the other end, and the cylinder In the body, the drive spindle is radially provided with a first air intake notch 503 and a second air intake notch 504 penetrating to the hollow cavity; The first front air outlet 501 and the second front air outlet 502 of the hollow cavity;

Further, the axes of the first air intake slot and the second air intake slot are parallel in space, and the first air intake slot and the second air intake slot are respectively located at the front and back of the swash plate.

Further, the axes of the first air outlet notch and the second air outlet notch coincide with the same spatial straight line.

Further, the self-axis space of the first air inlet slot and the first air outlet slot is vertical, and the self-axis space of the second air intake slot and the second air outlet slot is vertical.

Embodiments of the present invention are as follows:

As shown in Figure 2, the five pistons and the rear cylinder 4 form a low-pressure cavity in the circumferential direction. 503. The second air intake notch 504 enters the hollow cavity; when the piston moves to the left, the front cavity 9 sucks air from the first front air outlet 501 and the second front air outlet 502, and the rear cavity 10 sucks air from the rear The air outlet 201 on the cover 2 exhausts; when the piston 8 moves to the right, the front chamber 9 exhausts from the air outlet on the front cover 1 , and the rear chamber 10 inhales air from the rear air outlet 505 . That is to say, one piston of the present invention can simultaneously complete two-way suction and exhaust actions on the left and right sides, which greatly improves the compression efficiency.

For those skilled in the art, without departing from the inventive concept of the present invention, several modifications and improvements can be made, and these all belong to the protection scope of the present invention.

Claims (10)

1. A two-way swash plate type automotive air-conditioning compressor, characterized in that it comprises: a front cover, a rear cover, and a cylinder composed of the front cylinder and the rear cylinder, the cylinder being sealed by the front cover and the rear cover; The drive shaft runs through the front cover, the front cylinder block and the rear cylinder block, and a swash plate is arranged on the drive shaft, and the swash plate is connected to the piston through a sliding shoe; An air suction port is arranged on the outer periphery of the rear cylinder, and an air outlet is respectively arranged on the front cover and the rear cover: The drive spindle includes a section of hollow cavity, the hollow cavity opens a rear air outlet from one end close to the rear cover and extends to the other end, and in the cylinder, the drive spindle radially opens to The first air intake notch and the second air intake notch of the hollow cavity; at the positions corresponding to the front cylinder body, there are respectively provided through the first front air outlet and the second front air outlet of the hollow cavity. air outlet; The piston is installed between the front cylinder and the rear cylinder, and the two ends of the piston respectively form a front cavity and a rear cavity corresponding to the front cylinder and the rear cylinder. 2. The two-way swash plate type automobile air-conditioning compressor according to claim 1, wherein five pistons and five pairs of sliding shoes are arranged on the circumference of the swash plate, the pistons are equal in length, and the middle of the pistons passes through the The sliding shoes are rotatably connected to the swash plate. 3. The two-way swash plate type automobile air-conditioning compressor according to claim 2, wherein five holes are respectively opened in the front cylinder body and the rear cylinder body, and the two ends of the piston are clamped in the holes. 4. The two-way swash plate type automobile air-conditioning compressor according to claim 1, characterized in that, the axes of the first air intake slot and the second air intake slot are parallel in space, and the first air intake slot The air slot and the second air intake slot are respectively located at the front and back of the swash plate. 5 . The two-way swash plate type automobile air-conditioning compressor according to claim 4 , wherein the axes of the first air outlet notch and the second air outlet notch coincide with the same spatial straight line. 6 . 6. The two-way swash plate type automobile air-conditioning compressor according to claim 5, wherein the axis space of the first air inlet notch and the first air outlet notch are vertical, and the second air inlet The notch is perpendicular to the axis space of the second air outlet notch. 7. A drive shaft for an automobile air-conditioning compressor, characterized in that the drive shaft includes a section of hollow cavity, and the hollow cavity is provided with a rear air outlet from one end close to the rear cover and extends to the other end thereof , and in the cylinder body, the drive spindle radially opens the first air intake notch and the second air intake notch through to the hollow cavity; penetrating to the first front air outlet and the second front air outlet of the hollow cavity; The piston is installed between the front cylinder and the rear cylinder, and the two ends of the piston respectively form a front cavity and a rear cavity corresponding to the front cylinder and the rear cylinder. 8. The two-way swash plate type automobile air-conditioning compressor according to claim 7, characterized in that, the axes of the first air intake slot and the second air intake slot are parallel in space, and the first air intake slot The air slot and the second air intake slot are respectively located at the front and back of the swash plate. 9 . The two-way swash plate type automotive air-conditioning compressor according to claim 8 , wherein the axes of the first air outlet slot and the second air outlet slot coincide with the same spatial straight line. 10. The two-way swash plate type automobile air-conditioning compressor according to claim 9, wherein the axis space of the first air inlet notch and the first air outlet notch are vertical, and the second air inlet The notch is perpendicular to the axis space of the second air outlet notch.