Compressor pump assembly, compressor and air conditioning system including the same

Abstract

The present invention provides a compressor pump body assembly, a compressor and an air conditioning system including the same. A cylinder, wherein a cylindrical cavity is formed inside the cylinder; a roller, which is rollably arranged in the cavity along the inner peripheral wall of the cavity; a sealing vane groove and a connecting vane groove which are connected to the cavity are arranged oppositely along the radial direction of the cavity of the cylinder; a sealing vane, which is slidably arranged in the sealing vane groove, has a head abutting against the outer wall of the roller to form a sealing contact with the outer wall of the roller; a connecting vane, which is slidably arranged in the connecting vane groove, has a head abutting against the outer wall of the roller, and is provided with a ventilation structure to connect the spaces on both sides of the connecting vane in the cavity; a connecting ring, which is constructed as a circular ring structure, has the tails of the sealing vane and the connecting vane abutting against the inner side of the connecting ring, and the connecting ring moves synchronously with the sealing vane and the connecting vane. The present invention enables the sealing vane to maintain sealing contact with the roller, avoids cross-flow and collision, and improves the reliability of the compressor.

Description

Technical Field

[0001] The present invention relates to the technical field of compressors, and in particular to a compressor pump assembly, a compressor, and an air-conditioning system comprising the same. Background Art

[0002] In recent years, rolling rotor compressors have become popular worldwide due to their simple structure, low cost and high reliability, especially in the fields of air conditioners, water heaters, refrigeration equipment, etc.

[0003] During stable operation under certain operating conditions, the vane tail is subject to a constant gas force, while the vane head is affected by the gas force in the cylinder compression chamber and the centrifugal force of the rollers. This can cause the vane to detach from the rollers, resulting in the vane head hitting the rollers and the vane tail hitting the cylinder, producing a severe "clacking" sound that significantly worsens the compressor's noise. Furthermore, the vane detaching from the rollers can cause the cylinder compression chamber and the suction chamber to connect, resulting in cross-flow, which reduces the compressor's compression capacity and energy efficiency.

[0004] To address these issues, some compressors use an articulated connection between the roller and the vane, preventing separation. However, this hinged structure is complex to manufacture, suffers from low precision, and is costly. Furthermore, the roller thickness is reduced at the hinge groove, resulting in reduced rigidity and poor end-face sealing. Furthermore, the hinge groove cannot be machined on thin-walled rollers. Furthermore, the roller cannot rotate during operation, increasing friction between the roller and the crankshaft eccentric.

[0005] Some compressors also use magnetic material on the rollers, which magnetically attaches the ends of the vanes to the outer surface of the rollers to prevent them from detaching. This design complicates the machining of the entire roller, and as the compressor's operating frequency increases, the vanes will detach from the rollers when the centrifugal force becomes greater than the magnetic force. This causes the roller's arc surface to contact the cylinder's inner wall, interfering with the vanes, leading to large internal leakage and poor noise in the compressor. Furthermore, if the roller's magnetic position is not in the direction of the vane slot after shutdown, the compressor will be unable to establish a suction and exhaust pressure differential when it starts.

[0006] Although both of the above two methods are intended to solve the problem of the sliding plate and the roller being separated and colliding, both have certain defects and neither of them solves the existing technical problems well. Summary of the Invention

[0007] In view of this, the present invention provides a compressor pump assembly, a compressor, and an air conditioning system including the same, which are used to at least solve the technical problem of reliable contact between the sliding vane and the roller in the prior art, specifically:

[0008] In a first aspect, the present invention provides a compressor pump assembly, comprising:

[0009] A cylinder, wherein a cylindrical cavity is formed inside the cylinder;

[0010] a roller, rotatably disposed in the cavity along an inner peripheral wall of the cavity;

[0011] The cylinder is provided with a sealing sliding vane groove and a connecting sliding vane groove communicating with the cavity in opposite directions along the radial direction of the cavity;

[0012] a sealing vane, slidably disposed in the sealing vane groove along the radial direction of the cavity, with its head abutting against the outer wall of the roller to form a sealing contact with the outer wall of the roller, and a portion of the tail of the sealing vane extending out of the sealing vane groove;

[0013] a connecting slide, which is slidably disposed in the connecting slide groove along the radial direction of the cavity, with its head resting against the outer wall of the roller; a venting structure is provided on the connecting slide to connect the spaces on both sides of the connecting slide in the cavity; a portion of the tail of the connecting slide extends out of the connecting slide groove;

[0014] The connecting ring is constructed as a circular ring structure and is arranged at the end of the cylinder. The tails of the sealing slide and the connecting slide abut against the inner side of the connecting ring. The connecting ring moves synchronously with the sealing slide and the connecting slide.

[0015] Further optionally, a concave structure is provided on the end surface of the cylinder, the concave structure forms a ring shape along the circumference of the cylinder, and the connecting ring is located in the concave structure.

[0016] Further optionally, ends of the sealing sliding vane groove and the connecting sliding vane groove are located in the area where the concave structure is located;

[0017] The tail portions of the sealing sliding piece and the communicating sliding piece extend from the concave structure.

[0018] Further optionally, the concave structure is a groove-shaped structure formed at the end of the cylinder; or,

[0019] The concave structure is an annular stepped structure formed at the end of the cylinder.

[0020] Further optionally, the concave structure is formed at both ends of the cylinder.

[0021] Further optionally, two connecting rings are provided, and the two connecting rings are respectively provided at both ends of the cylinder and are simultaneously sleeved on the sealing sliding vane and the connecting sliding vane.

[0022] Further optionally, a notch is provided at the head of the connecting slide, and the notch constitutes the ventilation structure.

[0023] Further optionally, the notch is formed in the middle of the head of the connecting slide; and / or,

[0024] The notches are formed on both sides of the connecting slide head.

[0025] In a second aspect, the present invention provides a compressor comprising the above-mentioned compressor pump body assembly.

[0026] In a third aspect, the present invention provides an air-conditioning system, characterized in that it includes the above-mentioned compressor pump body assembly, or compressor.

[0027] The present invention forms an opposing double-sliding vane structure in the cylinder by a sealing sliding vane and a connecting sliding vane, and limits the two sliding vanes by a connecting ring, so that the two sliding vanes and the connecting ring move synchronously with the roller in the cylinder, thereby ensuring that the head of the sealing sliding vane maintains contact with the roller, avoiding noise and leakage in the cylinder caused by collision between the sliding vane and the roller, and ensuring the reliability and energy efficiency of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above and other objects, features and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the accompanying drawings. The drawings described below are only some embodiments of the present disclosure, and it is obvious to those skilled in the art that other drawings can be derived from these drawings without inventive effort.

[0029] Figure 1 A schematic cross-sectional view of a compressor pump assembly according to an embodiment of the present invention is shown;

[0030] Figure 2 A schematic cross-sectional view of a compressor according to an embodiment of the present invention is shown;

[0031] Figure 3 A schematic top view of a cylinder according to an embodiment of the present invention is shown;

[0032] Figure 4 A schematic diagram of the structure of the connecting slide in an embodiment of the present invention is shown;

[0033] Figure 5 A schematic diagram of the connecting ring structure according to an embodiment of the present invention is shown;

[0034] Figure 6 A schematic cross-sectional view of a compressor according to a first embodiment of the present invention is shown;

[0035] Figure 7 A schematic cross-sectional view of a compressor according to a second embodiment of the present invention is shown;

[0036] Figure 8 A schematic cross-sectional view of a compressor according to a third embodiment of the present invention is shown.

[0037] In the picture:

[0038] 1. Pump body assembly; 10. Cylinder; 11. Concave structure; 12. Sealing vane groove; 13. Connecting vane groove; 20. Sealing vane; 30. Connecting vane; 31. Notch; 40. Connecting ring; 50. Roller; 60. Upper flange; 70. Lower flange; 80. Crankshaft; 2. Housing; 201. Main structure; 202. Upper cover; 203. Lower cover; 204. Exhaust pipe; 205. Intake pipe; 206. Terminal; 3. Motor. DETAILED DESCRIPTION

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0040] The terms used in the embodiments of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The singular forms "a," "the," and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates otherwise. "A plurality" generally includes at least two, but does not exclude the inclusion of at least one.

[0041] It should be understood that the term "and / or" as used herein is merely a description of the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0042] It should also be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or system. In the absence of further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the product or system comprising the element.

[0043] The present invention forms an opposing dual-vane structure within the cylinder, consisting of a sealing vane and a connecting vane. A connecting ring limits the position of the two vanes, allowing the two vanes and the connecting ring to move synchronously with the rollers within the cylinder. This ensures that the heads of the sealing vanes maintain contact with the rollers, preventing noise and cylinder leakage caused by collisions between the vanes and the rollers, thereby ensuring the reliability and energy efficiency of the compressor. The present invention is described in detail below with reference to specific embodiments:

[0044] like Figure 1 As shown, the present invention provides a compressor pump body assembly, comprising: a cylinder 10, a cylindrical cavity formed inside the cylinder 10, and a sealing vane groove 12 and a connecting vane groove 13 communicating with the cavity being provided on the cylinder 10 in opposite directions along its radial direction;

[0045] The roller 50 is rotatably disposed in the cavity along the inner wall of the cavity;

[0046] The sealing vane 20 is slidably disposed in the sealing vane groove 12 along the radial direction of the cavity. The head of the sealing vane 20 abuts against the outer wall of the roller 50, forming a sealing contact with the outer wall of the roller 50. The sealing vane 20 and the roller 50 divide the cavity into a suction chamber and a compression chamber. A portion of the tail of the sealing vane 20 extends out of the sealing vane groove 12.

[0047] The connecting slide 30 is slidably disposed in the connecting slide groove 13 along the radial direction of the cavity, with its head resting against the outer wall of the roller 50. The connecting slide 30 is provided with a vent structure to connect the spaces on both sides of the connecting slide 30 in the cavity. A portion of the tail of the connecting slide 30 extends out of the connecting slide groove 13.

[0048] like Figure 5 As shown, the connecting ring 40 is constructed as a circular ring structure, which is arranged at the end of the cylinder 10 and is sleeved on the outside of the sealing slide 20 and the connecting slide 30. The part of the tail of the sealing slide 20 extending outside the sealing slide groove 12 and the part of the tail of the connecting slide 30 extending outside the connecting slide groove 13 are in contact with the connecting ring 40 on the inner side of the connecting ring 40. Under the action of the connecting ring 40, the head of the sealing slide 20 and the head of the connecting slide 30 are simultaneously in contact with the outer wall of the roller 50, and the sealing slide 20, the connecting slide 30 and the connecting ring 40 are moved synchronously, so that the head of the sealing slide 20 and the roller 50 cannot be separated.

[0049] The pump body assembly 1 also includes an upper flange 60, a lower flange 70 and a crankshaft 80. The upper flange 60 and the lower flange 70 are respectively sealed at both ends of the cylinder 10. The crankshaft 80 is rotatably arranged in the cylinder 10. The roller 50 is mounted on the crankshaft 80, and the crankshaft 80 drives the roller 50 to rotate in the cylinder 10, thereby completing operations such as suction, compression, and exhaust.

[0050] like Figure 2 、 Figure 3 As shown, preferably, a recessed structure 11 is provided on the end face of the cylinder 10 to provide space for installing the connecting ring 40. The recessed structure 11 is formed along the circumference of the cylinder 10 and radially outward of the end face of the cylinder 10, at or near the edge of the cylinder 10. The inner portion of the recessed structure 11 forms the finished surface of the end face of the cylinder 10, which is used to form a sealing contact with the flange. The connecting ring 40 is located within the recessed structure 11 and can move radially within the recessed structure 11.

[0051] The ends of the sealing vane groove 12 and the connecting vane groove 13 are located in the area where the concave structure 11 is located, so that the vane groove and the connecting groove form a stepped shape at the concave structure 11, so that a portion of the tail of the sealing vane 20 and the connecting vane 30 extends into the concave structure 11, and the connecting ring 40 is mounted on the outside of the sealing vane 20 and the connecting vane 30 in the concave structure 11.

[0052] Preferably, a limiting structure can be set between the connecting ring 40 and the sealing slide 20 and the connecting slide 30 to prevent the connecting ring 40 from falling off during movement. For example, the limiting structure can be achieved by setting a limiting groove, pins, etc. For example, a limiting groove is opened on the inner side of the connecting ring 40, and the tails of the sealing slide 20 and the connecting slide 30 are respectively inserted into a limiting groove on the connecting ring 40.

[0053] Preferably, the concave structure 11 can be a groove-shaped structure formed at the end of the cylinder 10, the inner diameter of the groove-shaped structure is smaller than the inner diameter of the connecting ring 40, and the outer diameter of the groove-shaped structure is larger than the outer diameter of the connecting ring 40, and the ends of the sealing vane groove 12 and the connecting vane groove 13 are located between the radial inner wall and the radial outer wall of the groove-shaped structure.

[0054] Alternatively, in this embodiment, the concave structure 11 is an annular stepped structure formed at the end of the cylinder 10, that is, the concave structure 11 is concave inward along the radial and axial directions of the edge of the end face of the cylinder 10, and extends circumferentially to form an annular structure, and the ends of the sealing vane groove 12 and the connecting vane groove 13 are located at the position of the annular stepped structure.

[0055] Preferably, an indented structure 11 is formed at both ends of the cylinder 10, and correspondingly, a connecting ring 40 is provided at both ends of the cylinder 10. The two connecting rings 40 are respectively provided at both ends of the cylinder 10, and are simultaneously sleeved onto the tails of the sealing slide 20 and the connecting slide 30, thereby making the connection between the sealing slide 20 and the connecting slide 30 and the connecting ring 40 more reliable, that is, further ensuring that the sealing slide 20 will not separate from the roller 50.

[0056] like Figure 4As shown, the head of the connecting slide 30 is provided with a notch 31, which constitutes a ventilation structure that connects the spaces on both sides of the connecting slide 30. Preferably, the notch 31 is formed in the middle of the head of the connecting slide 30, and the connecting slide 30 abuts against the roller 50 through the structures on both sides of the notch 31. Alternatively, the notch 31 is formed on both sides of the head of the connecting slide 30, and the structure between the notches 31 abuts against the roller. Furthermore, multiple different types of notches 31 can be provided simultaneously, or a through hole can be opened in the connecting slide 30 to form a connecting structure.

[0057] The present invention also provides a compressor, such as Figure 6 、 Figure 7 、 Figure 8 As shown, it includes the above-mentioned compressor pump body assembly 1, housing 2 and motor 3. The pump body assembly 1 and motor 3 are arranged in the housing 2 and fixed by welding. The output shaft of the motor 3 is connected to the crankshaft 80 to drive the crankshaft 80 to rotate.

[0058] The housing 2 comprises a main structure 201, an upper cover 202, and a lower cover 203. The main structure 201 is cylindrical, with the upper and lower covers 202 and 203 sealing the ends of the main structure 201, forming an exhaust chamber within the main structure 201. An exhaust pipe 204 is provided on the upper cover 202, communicating with the exhaust chamber. The exhaust port of the pump assembly 1 is also connected to the exhaust chamber. The upper cover 202 is also provided with terminal blocks 206 for powering and controlling the compressor. The exhaust pipe 204 is provided on the sidewalls of the main structure 201, and an intake pipe 205 is connected to the intake port of the pump assembly 1.

[0059] Preferably, if Figure 7 As shown, the compressor can also be constructed to form an air intake chamber inside its housing 2, with an air intake pipe 205 provided on the upper cover 202, and the air intake chamber is connected to the air intake port of the pump body assembly 1. An exhaust pipe 204 is formed on the main structure 201 and is connected to the exhaust port of the pump body assembly 1, that is, the compressor is constructed as a back-pressure compressor.

[0060] Furthermore, if Figure 8 As shown, the compressor can also be constructed as a multi-cylinder rotor compressor such as a two-cylinder compressor and a three-cylinder compressor.

[0061] The present invention can prevent the sealing vane from separating from the roller, so that the roller and the sealing vane will not collide and generate noise. At the same time, it also avoids internal air cross-talk, thereby improving the compression capacity of the compressor and reducing energy efficiency.

[0062] The present invention further provides an air conditioning system, comprising the compressor pump assembly 1, or the compressor. Preferably, the air conditioning system can be a household air conditioner, a commercial air conditioner, a vehicle air conditioner, or the like.

[0063] In summary, the present invention utilizes a mutually constrained structure, formed by the connecting vane and the connecting ring, to limit the position of the sealing vane, thereby preventing air leakage and collision caused by separation of the vane and the roller. This invention offers a simple overall structure, easy assembly, and high reliability, requiring minimal structural changes to the existing pump assembly.

[0064] While the exemplary embodiments of the present disclosure have been specifically illustrated and described above, it should be understood that the present disclosure is not limited to the detailed structures, configurations, or implementations described herein; rather, the present disclosure is intended to encompass various modifications and equivalent configurations within the spirit and scope of the appended claims.

Claims

1. A compressor pump assembly, characterized in that: include: A cylinder, wherein a cylindrical cavity is formed inside the cylinder; A roller is rotatably disposed in the cavity along the inner peripheral wall of the cavity; The cylinder is provided with a sealing vane groove and a connecting vane groove communicating with the cavity in opposite directions along the cavity radial direction; A sealing vane, which can be radially slidably disposed in the sealing vane groove along the cavity, with its head abutting against the outer wall of the roller to form a sealing contact with the outer wall of the roller, and a part of the tail of the sealing vane protruding from the sealing vane groove; A connecting slide, which can be radially slidably arranged in the connecting slide groove along the cavity, with its head abutting against the outer wall of the roller, and a ventilation structure is arranged on the connecting slide to connect the spaces on both sides of the connecting slide in the cavity, and a part of the tail of the connecting slide extends out of the connecting slide groove; The connecting ring is constructed as a circular ring structure and is arranged at the end of the cylinder. The tails of the sealing slide and the connecting slide abut against the inner side of the connecting ring, and the connecting ring moves synchronously with the sealing slide and the connecting slide.

2. The compressor pump assembly according to claim 1, characterized in that: An inner concave structure is arranged on the end surface of the cylinder, the inner concave structure forms an annular shape along the circumference of the cylinder, and the connecting ring is located in the inner concave structure.

3. The compressor pump assembly according to claim 2, characterized in that: The ends of the sealing sliding vane groove and the connecting sliding vane groove are located in the area where the concave structure is located; The tails of the sealing sliding piece and the connecting sliding piece extend out from the concave structure.

4. The compressor pump assembly according to claim 3, characterized in that: The concave structure is a groove-shaped structure formed at the end of the cylinder; or, The concave structure is an annular stepped structure formed at the end of the cylinder.

5. The compressor pump assembly according to any one of claims 2 to 4, characterized in that: The concave structures are formed at both ends of the cylinder.

6. The compressor pump assembly according to claim 5, characterized in that: Two connecting rings are provided, and the two connecting rings are respectively provided at two ends of the cylinder and are simultaneously sleeved on the sealing sliding plate and the connecting sliding plate.

7. The compressor pump assembly according to claim 1, characterized in that: The head of the connecting slide is provided with a notch, and the notch constitutes the ventilation structure.

8. The compressor pump assembly according to claim 7, characterized in that: The notch is formed at the middle position of the connecting slide head; and / or, The notches are formed on both sides of the connecting slide head.

9. A compressor, characterized in that: A compressor pump body assembly comprising any one of claims 1-8.

10. An air conditioning system, characterized in that: It comprises the compressor pump body assembly according to any one of claims 1 to 8, or the compressor according to claim 9.

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