Cylinder assembly and compressor with same

Abstract

The invention provides an air cylinder assembly and a compressor with the air cylinder assembly, and the air cylinder assembly comprises a cylinder body which is provided with a center cavity and a sliding piece groove which are communicated with each other; a compression cavity is formed between the peripheral surface of the piston and the cavity wall of the central cavity in a surrounding manner, and the piston is rotatably arranged in the central cavity and used for compressing gas in the compression cavity; the sliding piece is arranged in the sliding piece groove in a sliding mode, and one end of the sliding piece makes contact with the peripheral face of the piston so that the compression cavity can be divided into a low-pressure cavity and a high-pressure cavity; the cylinder body is further provided with an exhaust hole and an air suction hole, the exhaust hole is communicated with the high-pressure cavity, the air suction hole comprises a containing hole and a communicating hole, one end of the containing hole extends to the peripheral face of the cylinder body, the other end of the containing hole extends to the sliding piece groove and is communicated with the sliding piece groove, and the containing hole, the sliding piece groove and the low-pressure cavity are all communicated with the communicating hole. And gas enters the low-pressure cavity through the accommodating hole and the communicating hole. The rotor type compressor effectively solves the problem that in the prior art, a rotor type compressor is low in efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of compressors, and in particular to a cylinder assembly and a compressor having the same. Background Art

[0002] At present, the performance of the compressor, as the core component of the air conditioner, is directly related to the overall performance of the air conditioner. As users' requirements for air conditioner performance gradually increase, the efficiency and energy efficiency of the compressor also need to be improved accordingly. Rotary compressors are widely used in the air conditioner market due to their advantages of high efficiency, reliability, simple structure and small size.

[0003] In the prior art, the motor stator of the rotary compressor generates magnetic pulling force after being energized. The motor rotor rotates under the magnetic pulling force of the stator and drives the crankshaft of the compression mechanism to rotate together. The rotation of the crankshaft drives the piston sleeved on its eccentric part to make eccentric circular motion in the cavity of the cylinder. The cylinder is usually provided with an air intake hole, a vane groove, a spring hole and an exhaust port. A vane is installed in the vane groove, and a compression spring is installed in the spring hole. The compression spring is connected to the vane, so that the vane always supports the piston under the action of the compression spring and reciprocates in the vane groove. At this time, the vane and the piston divide the cavity of the cylinder into a high-pressure chamber and a low-pressure chamber. When the crankshaft drives the piston to rotate one circle, air is sucked from the low-pressure chamber and exhausted from the high-pressure chamber to complete one exhaust, thereby realizing the compression of the gas by the rotary compressor.

[0004] However, in the prior art, the outer circumference of the cylinder is sequentially provided with an intake hole, a vane groove and an exhaust port, and there is a certain sealing distance between the intake hole and the vane groove, so that there is a certain angle between the central axis of the intake hole and the central axis of the vane groove. This angle can easily affect the intake start time of the rotary compressor, thereby reducing the efficiency and output power of the rotary compressor. Summary of the invention

[0005] The main purpose of the present invention is to provide a cylinder assembly and a compressor having the same, so as to solve the problem of low efficiency of the rotor compressor in the prior art.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a cylinder assembly is provided, comprising: a cylinder body, the cylinder body having a central cavity and a vane groove which are interconnected; a piston, a compression cavity is formed around the outer circumferential surface of the piston and the cavity wall of the central cavity, and the piston is rotatably arranged in the central cavity to compress the gas in the compression cavity; a vane which is slidably arranged in the vane groove, one end of the vane is in contact with the outer circumferential surface of the piston to separate the compression cavity into a low-pressure cavity and a high-pressure cavity; wherein the cylinder body also has an exhaust hole and an intake hole, the exhaust hole is connected with the high-pressure cavity, the intake hole comprises a receiving hole and a connecting hole, one end of the receiving hole extends to the outer circumferential surface of the cylinder body, the other end of the receiving hole extends to the vane groove and is connected with the vane groove, the receiving hole, the vane groove and the low-pressure cavity are all connected with the connecting hole, so that the gas enters the low-pressure cavity through the receiving hole and the connecting hole.

[0007] Furthermore, the central axis of the accommodating hole coincides with the central axis of the sliding plate slot.

[0008] Furthermore, the cylinder assembly also includes an air intake pipe, which is arranged on the cylinder body, and at least a part of the air intake pipe extends into the accommodating hole to supply gas into the accommodating hole.

[0009] Furthermore, the cylinder assembly also includes: a sealing structure, which is arranged in the intake pipe and has an interference fit with the intake pipe, and the sealing structure is located in the accommodating hole; an elastic structure, which is arranged on the sealing structure and is located in the accommodating hole, and one end of the elastic structure abuts against an end of the sliding plate away from the piston to keep the sliding plate in contact with the outer peripheral surface of the piston.

[0010] Furthermore, the accommodating hole includes a first hole section and a second hole section which are connected to each other, wherein one end of the first hole section away from the second hole section extends to the outer circumferential surface of the cylinder body, and one end of the second hole section away from the first hole section extends to the slide vane groove and is connected to the slide vane groove; wherein the sealing structure is located in the first hole section, and the elastic structure is located in the second hole section.

[0011] Furthermore, the sealing structure is annular, and the inner diameter D1 of the sealing structure, the outer diameter D2 of the elastic structure and the inner diameter D3 of the second hole section satisfy: D1<D2≤D3.

[0012] Furthermore, the intake pipe includes a first pipe section and a second pipe section which are interconnected, wherein one end of the first pipe section away from the second pipe section is connected to the outside, and one end of the second pipe section away from the first pipe section extends into the accommodating hole, and the outer diameter D4 of the sealing structure and the inner diameter D5 of the second pipe section satisfy: D5<D4; the inner diameter D6 of the first hole section and the outer diameter D7 of the second pipe section satisfy: D7<D6.

[0013] According to another aspect of the present invention, a compressor is provided, comprising: a shell having a accommodating cavity for accommodating a cylinder assembly; a fixed pipe arranged on the shell for sleeve-mounting an intake pipe of the cylinder assembly; wherein the cylinder assembly is the above-mentioned cylinder assembly.

[0014] Furthermore, the outer diameter D8 of the first pipe section of the cylinder assembly and the inner diameter D9 of the fixed pipe satisfy the relationship: D8<D9.

[0015] Furthermore, the compressor also includes: a crankshaft, which is connected to the piston driving to drive the piston to move; a liquid distributor, which is arranged outside the accommodating chamber and is connected to the intake pipe to transport the gas in the liquid distributor to the intake pipe of the cylinder assembly.

[0016] By applying the technical solution of the present invention, the cylinder body of the cylinder assembly has a central cavity and a vane groove that are interconnected. A compression chamber is formed between the outer circumferential surface of the piston and the cavity wall of the central cavity. The piston is rotatably arranged in the central cavity to compress the gas in the compression chamber. The vane is slidably arranged in the vane groove, and one end of the vane contacts the outer circumferential surface of the piston to separate the compression chamber into a low-pressure chamber and a high-pressure chamber. Among them, the cylinder body also has an exhaust hole and an air intake hole, the exhaust hole is connected to the high-pressure chamber, and the air intake hole includes a receiving hole and a connecting hole, one end of the receiving hole extends to the outer circumferential surface of the cylinder body, and the other end of the receiving hole extends to the vane groove and is connected to the vane groove, and the receiving hole, the vane groove and the low-pressure chamber are all connected to the connecting hole, so that the gas enters the low-pressure chamber through the receiving hole and the connecting hole. In this way, the gas enters the low-pressure chamber through the accommodating hole and the connecting hole, is compressed by the piston and finally discharged from the exhaust hole, completing a round of gas compression. After that, the cylinder continues to inhale air and the piston continues to compress the gas. Since the connecting hole is connected to the accommodating hole and the sliding vane groove, after a round of gas compression is completed, the gas can be sucked into the low-pressure chamber in time, and the piston can also compress the newly inhaled gas faster, thereby shortening the start time of intake, improving the intake efficiency, increasing the effective compression volume of the compression chamber, and improving the compression efficiency of the rotary compressor, thereby solving the problem of low efficiency of the rotary compressor in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic structural diagram of an embodiment of a cylinder assembly according to the present invention is shown;

[0019] Figure 2 Shown according to Figure 1 Schematic diagram of local structural decomposition;

[0020] Figure 3 A partial structural schematic diagram of an embodiment of a cylinder assembly according to the present invention is shown;

[0021] Figure 4 A schematic structural diagram of an embodiment of a compressor according to the present invention is shown;

[0022] Figure 5 A partial structural schematic diagram of an embodiment of a compressor according to the present invention is shown.

[0023] The above drawings include the following reference numerals:

[0024] 1. Shell; 101. Accommodating chamber; 2. Fixed tube; 3. Crankshaft; 4. Liquid distributor; 501. Upper cover; 502. Lower cover; 601. Motor stator; 602. Motor rotor; 7. Partition; 801. Upper flange; 802. Lower flange; 9. Cover plate;

[0025] 10. Cylinder body; 11. Central cavity; 12. Sliding plate groove; 13. Exhaust hole; 14. Intake hole; 141. Accommodation hole; 1411. First hole section; 1412. Second hole section; 142. Communication hole;

[0026] 20, piston; 21, compression chamber; 211, low pressure chamber; 212, high pressure chamber;

[0027] 30. Slide;

[0028] 40. Intake pipe; 41. First pipe section; 42. Second pipe section;

[0029] 50. Sealing structure;

[0030] 60. Elastic structure. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0033] In the present invention, unless otherwise specified, the directional words used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above directional words are not used to limit the present invention.

[0034] In order to solve the problem of low efficiency of the rotor compressor in the prior art, the present application provides a cylinder assembly and a compressor having the same.

[0035] like Figures 1 to 3 As shown, the cylinder assembly includes a cylinder body 10, a piston 20 and a slide vane 30. The cylinder body 10 has a central cavity 11 and a slide vane groove 12 that are interconnected. A compression chamber 21 is formed between the outer circumference of the piston 20 and the cavity wall of the central cavity 11. The piston 20 is rotatably disposed in the central cavity 11 to compress the gas in the compression chamber 21. The slide vane 30 is slidably disposed in the slide vane groove 12, and one end of the slide vane 30 contacts the outer circumference of the piston 20 to separate the compression chamber 21 into a low-pressure chamber 211 and a high-pressure chamber 212. Among them, the cylinder body 10 also has an exhaust hole 13 and an intake hole 14, the exhaust hole 13 is connected to the high-pressure chamber 212, and the intake hole 14 includes a accommodating hole 141 and a connecting hole 142. One end of the accommodating hole 141 extends to the outer peripheral surface of the cylinder body 10, and the other end of the accommodating hole 141 extends to the slide groove 12 and is connected to the slide groove 12. The accommodating hole 141, the slide groove 12 and the low-pressure chamber 211 are all connected with the connecting hole 142, so that the gas enters the low-pressure chamber 211 through the accommodating hole 141 and the connecting hole 142.

[0036] According to the technical solution of this embodiment, the cylinder body 10 of the cylinder assembly has a central cavity 11 and a sliding vane groove 12 which are connected to each other. A compression cavity 21 is formed between the outer circumferential surface of the piston 20 and the cavity wall of the central cavity 11. The piston 20 is rotatably arranged in the central cavity 11 to compress the gas in the compression cavity 21. The sliding vane 30 is slidably arranged in the sliding vane groove 12, and one end of the sliding vane 30 contacts the outer circumferential surface of the piston 20 to separate the compression cavity 21 into a low-pressure cavity 211 and a high-pressure cavity 212. Among them, the cylinder body 10 also has an exhaust hole 13 and an intake hole 14, the exhaust hole 13 is connected to the high-pressure chamber 212, and the intake hole 14 includes a accommodating hole 141 and a connecting hole 142. One end of the accommodating hole 141 extends to the outer peripheral surface of the cylinder body 10, and the other end of the accommodating hole 141 extends to the slide groove 12 and is connected to the slide groove 12. The accommodating hole 141, the slide groove 12 and the low-pressure chamber 211 are all connected with the connecting hole 142, so that the gas enters the low-pressure chamber 211 through the accommodating hole 141 and the connecting hole 142. In this way, the gas enters the low-pressure chamber 211 through the accommodating hole 141 and the connecting hole 142, and is compressed by the piston 20 and finally discharged from the exhaust hole 13, completing a round of gas compression. After that, the cylinder continues to inhale air, and the piston 20 continues to compress the gas. Since the connecting hole 142 is connected with the accommodating hole 141 and the vane groove 12, after a round of gas compression is completed, the gas can be sucked into the low-pressure chamber 211 in time, and the piston 20 can also compress the newly inhaled gas faster, thereby shortening the start time of intake, improving the intake efficiency, increasing the effective compression volume of the compression chamber 21, and improving the compression efficiency of the rotary compressor, thereby solving the problem of low efficiency of the rotary compressor in the prior art.

[0037] Specifically, the central axis of the accommodating hole 141 coincides with the central axis of the vane slot 12. In this way, the above arrangement enables the accommodating hole 141 in the air intake hole 14 to be coaxially arranged with the vane slot 12, optimizes the flow path of the gas, and enables the gas to be closer to the vane 30 after entering the low-pressure chamber 211, so that it can be compressed by the piston 20 more quickly, further improving the compression efficiency of the compressor. At the same time, the above arrangement makes it easier for the staff to process the accommodating hole 141 and the vane slot 12, which is conducive to ensuring the processing efficiency of the staff.

[0038] like Figures 1 to 3 As shown, the cylinder assembly further includes an air intake pipe 40, which is arranged on the cylinder body 10, and at least a portion of the air intake pipe 40 extends into the receiving hole 141 to feed gas into the receiving hole 141. In this way, the cylinder assembly realizes the suction of external gas into the low-pressure chamber 211 through the air intake pipe 40. At the same time, the setting mode of the air intake pipe 40 directly extending into the receiving chamber shortens the time for the gas to enter the low-pressure chamber 211, reduces the resistance and energy loss during the gas flow process, thereby improving the efficiency of gas introduction, which helps to improve the overall working performance of the compressor.

[0039] like Figure 1 and Figure 2As shown, the cylinder assembly also includes a sealing structure 50 and an elastic structure 60. The sealing structure 50 is arranged in the suction pipe 40 and has an interference fit with the suction pipe 40, and the sealing structure 50 is located in the accommodating hole 141. The elastic structure 60 is arranged on the sealing structure 50 and is located in the accommodating hole 141, and one end of the elastic structure 60 abuts against the end of the slide 30 away from the piston 20, so that the slide 30 keeps in contact with the outer peripheral surface of the piston 20. In this way, the above-mentioned setting of the sealing structure 50 makes the connection between the suction pipe 40 and the cylinder body 10 more tightly, avoids gas leakage, ensures the sealing of the gas entering the low-pressure chamber 211, and thus ensures the suction reliability of the compressor. At the same time, the above-mentioned setting of the elastic structure 60 enables the slide 30 to be in contact with the piston 20 under the action of the elastic force, thereby ensuring that the compression chamber 21 can be sealed and divided into two chambers all the time, and the compression reliability of the compression chamber 21 is ensured. At the same time, the elastic structure 60 is located in the accommodating hole 141. On the one hand, since the accommodating hole 141 is coaxially arranged with the vane groove 12, the force transmission between the elastic structure 60 and the vane 30 is more direct and uniform, and the axial force of the elastic structure 60 can directly act on the tail of the vane 30, reducing the deflection of force and energy loss, making the movement of the vane 30 smoother, reducing friction and wear, thereby improving the operating efficiency and reliability of the compressor; on the other hand, it also provides a movable space for the elastic structure 60, ensuring the movement reliability of the spring structure. At the same time, compared with the prior art method in which the elastic structure 60 is processed into a step shape and installed on the cylinder body 10, the elastic structure 60 is installed on the sealing structure 50. On the one hand, the installation of the elastic structure 60 can be more secure, and there will be no movement between the elastic structure 60 and the cylinder body 10 due to external force, thereby ensuring the centering of the elastic structure 60 and avoiding the friction between the inclination of the elastic structure 60 and the hole wall of the accommodating hole 141, which may cause the hole wall of the accommodating hole 141 to wear, the elastic structure 60 to pop out, and the slide 30 to fail, thereby ensuring the operating reliability of the elastic structure 60; on the other hand, the elastic structure 60 does not need to be processed into a step shape, which reduces the processing difficulty of the elastic structure 60 and improves the processing efficiency of the staff.

[0040] In this embodiment, the sealing structure 50 is a sealing ring.

[0041] In this embodiment, the elastic structure 60 is a spring.

[0042] Specifically, the spring is mounted on the plane of the sealing ring.

[0043] In this embodiment, the sealing ring is pressed into the air intake pipe 40 .

[0044] In an embodiment not shown in the drawings, no spring is installed in the cylinder assembly, and magnetic structures are provided on the slide and the piston respectively, so as to ensure that the slide and the piston are always in contact through magnetic connection.

[0045] like Figure 2 and Figure 3 As shown, the accommodating hole 141 includes a first hole section 1411 and a second hole section 1412 that are connected to each other, one end of the first hole section 1411 away from the second hole section 1412 extends to the outer peripheral surface of the cylinder body 10, and one end of the second hole section 1412 away from the first hole section 1411 extends to the sliding vane groove 12 and is connected to the sliding vane groove 12. The sealing structure 50 is located in the first hole section 1411, and the elastic structure 60 is located in the second hole section 1412. In this way, the accommodating hole 141 is connected with the external structure through the first hole section 1411, and is connected with the low-pressure chamber 211 through the second hole section 1412. The accommodating hole 141 also defines the positions of the sealing structure 50 and the elastic structure 60 through the first hole section 1411 and the second hole section 1412, so that the sealing structure 50 can be more effectively sealed in the first hole section 1411 to avoid gas leakage, and the elastic structure 60 can be prevented from direct contact with the outside world in the second hole section 1412, thereby reducing the influence of external force on the elastic structure 60, and further ensuring the operational reliability of the elastic structure 60.

[0046] like Figure 3 As shown, the sealing structure 50 is annular, and the inner diameter D1 of the sealing structure 50, the outer diameter D2 of the elastic structure 60 and the inner diameter D3 of the second hole section 1412 satisfy: D1<D2≤D3. In this way, the above arrangement realizes the connection between the sealing structure 50 and the elastic structure 60, ensures the tightness of the connection between the sealing structure 50 and the elastic structure 60, ensures the firmness of the installation of the elastic structure 60, and also ensures the smoothness of the movement of the elastic structure 60 in the second hole section 1412, further ensuring the operational reliability of the elastic structure 60.

[0047] like Figure 3As shown, the intake pipe 40 includes a first pipe section 41 and a second pipe section 42 that are interconnected. The end of the first pipe section 41 away from the second pipe section 42 is connected to the outside, and the end of the second pipe section 42 away from the first pipe section 41 extends into the receiving hole 141. The outer diameter D4 of the sealing structure 50 and the inner diameter D5 of the second pipe section 42 satisfy: D5<D4. The inner diameter D6 of the first hole section 1411 and the outer diameter D7 of the second pipe section 42 satisfy: D7<D6. In this way, the intake pipe 40 realizes an interference fit between the sealing structure 50 and the intake pipe 40 through the second pipe section 42, effectively preventing the leakage of gas in the process of entering the receiving hole 141, ensuring the sealing performance of the compressor, reducing energy loss, and further ensuring the compression efficiency of the compressor. At the same time, the proportional relationship between the inner diameter D6 of the first hole section 1411 and the outer diameter D7 of the second tube section 42 ensures the smoothness of the air intake pipe 40 extending into the accommodating hole 141, and ensures the smoothness and reliability of gas delivery.

[0048] like Figure 2 and Figure 4 As shown, this embodiment also provides a compressor, which includes a shell 1 and a fixed pipe 2. The shell 1 has a accommodating cavity 101 for accommodating a cylinder assembly. The fixed pipe 2 is arranged on the shell 1 to be used for sleeve-mounting the intake pipe 40 of the cylinder assembly. Among them, the cylinder assembly is the above-mentioned cylinder assembly. In this way, the shell 1 of the compressor accommodates the cylinder assembly, which ensures the compactness and integration of the internal structure of the compressor, reduces the floor space of the equipment, facilitates installation and layout, and can also protect the cylinder assembly, thereby extending the service life of the cylinder assembly. At the same time, the setting method of the fixed pipe 2 realizes the fixation of the intake pipe 40, ensures that the intake pipe 40 will not shake due to external force, and thus ensures the smoothness and reliability of gas transportation. At the same time, the fixed pipe 2 can also prevent the gas from leaking out from the gap between the intake pipe 40 and the shell 1, further ensuring the sealing of the gas.

[0049] In this embodiment, the fixing pipe 2 is welded to the housing 1 .

[0050] like Figure 2 As shown, the outer diameter D8 of the first pipe section 41 of the cylinder assembly and the inner diameter D9 of the fixed pipe 2 satisfy: D8<D9. In this way, the above arrangement allows the air intake pipe 40 to be conveniently and quickly inserted into the receiving hole 141 while being fixed by the fixed pipe 2, thereby ensuring the assembly convenience and operation reliability of the air intake pipe 40, and further ensuring the smooth flow of gas.

[0051] like Figure 4As shown, the compressor also includes a crankshaft 3 and a liquid distributor 4. The crankshaft 3 is drivingly connected to the piston 20 to drive the piston 20 to move. The liquid distributor 4 is arranged outside the accommodating chamber 101, and the liquid distributor 4 is connected to the intake pipe 40 to transport the gas in the liquid distributor 4 to the intake pipe 40 of the cylinder assembly. In this way, the compressor drives the piston 20 to move through the crankshaft 3, thereby ensuring the high efficiency and stability of power transmission and the compression reliability of the compressor. At the same time, the liquid distributor 4 can deliver the preliminarily treated gas into the intake pipe 40 to provide gas for the compressor, thereby ensuring the continuity and cleanliness of gas transportation.

[0052] like Figure 4 As shown, the compressor also includes an upper cover body 501 and a lower cover body 502. One end of the shell 1 is connected to the upper cover body 501, and the other end of the shell 1 is connected to the lower cover body 502. The inner wall of the upper cover body 501, the inner wall of the shell 1 and the inner wall of the lower cover body 502 form a accommodating cavity 101.

[0053] like Figure 4 As shown, the compressor also includes a motor stator 601 and a motor rotor 602. The motor stator 601 is arranged on the shell 1 and located in the accommodating chamber 101. The motor rotor 602 is sleeved on the crankshaft 3. Under the action of voltage, the motor stator 601 generates a rotating magnetic field to drive the motor rotor 602 to drive the crankshaft 3 to rotate, and the crankshaft 3 then drives the piston 20 to rotate in the compression chamber 21.

[0054] like Figure 4 and Figure 5 As shown, the compressor further includes two cylinder assemblies, a partition 7, an upper flange 801, a lower flange 802 and a cover plate 9. The partition 7 is arranged between the two cylinder assemblies, the upper flange 801 is arranged on one end of one of the cylinder bodies 10 away from the partition 7, the lower flange 802 is arranged on one end of the other cylinder body 10 away from the partition 7, and the cover plate 9 is arranged on one end of the lower flange 802 away from the cylinder body 10. The crankshaft 3 passes through the central cavity 11 so that the piston 20 is sleeved on the crankshaft 3, and the partition 7, the upper flange 801, the lower flange 802 and the cover plate 9 are all sleeved on the crankshaft 3. Among them, the upper flange 801, the partition 7 and the inner wall of the cylinder body 10 surround to form the central cavity 11, or the lower flange 802, the partition 7 and the inner wall of the cylinder body 10 surround to form the central cavity 11.

[0055] Specifically, the two cylinder assemblies are arranged in a centrally symmetrical manner.

[0056] Specifically, the low-temperature and low-pressure gas in the liquid distributor 4 enters the low-pressure chamber 211 through the air intake pipe 40 , the sealing ring, the accommodating hole 141 and the communicating hole 142 .

[0057] In the prior art, after the piston 20 rotates from the high-pressure chamber 212 to the low-pressure chamber 211, before the piston 20 moves through the suction hole 14, the piston 20 only rotates without compressing the gas. Therefore, the angle between the center line of the suction hole 14 and the center line of the vane groove 12 is approximately 37.7°. Within this angle, the compressor operates ineffectively, so that the effective operation ratio of the compressor is approximately 89.53%. After the piston 20 in this embodiment rotates from the high-pressure chamber 212 to the low-pressure chamber 211, it can contact the suction hole 14 in a short time and compress the gas in the low-pressure chamber 211, so that the angle between the outer extension line of the connecting hole 142 and the center line of the vane groove 12 is reduced to 22.9°, thereby making the effective operation ratio of the compressor approximately 93.64%, effectively improving the compression efficiency of the compressor.

[0058] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0059] The cylinder body of the cylinder assembly has a central cavity and a vane groove that are interconnected. A compression chamber is formed between the outer circumferential surface of the piston and the cavity wall of the central cavity. The piston is rotatably arranged in the central cavity to compress the gas in the compression chamber. The vane is slidably arranged in the vane groove, and one end of the vane contacts the outer circumferential surface of the piston to separate the compression chamber into a low-pressure chamber and a high-pressure chamber. The cylinder body also has an exhaust hole and an air intake hole, the exhaust hole is connected to the high-pressure chamber, and the air intake hole includes a receiving hole and a connecting hole, one end of the receiving hole extends to the outer circumferential surface of the cylinder body, and the other end of the receiving hole extends to the vane groove and is connected to the vane groove, and the receiving hole, the vane groove and the low-pressure chamber are all connected to the connecting hole, so that the gas enters the low-pressure chamber through the receiving hole and the connecting hole. In this way, the gas enters the low-pressure chamber through the accommodating hole and the connecting hole, is compressed by the piston and finally discharged from the exhaust hole, completing a round of gas compression. After that, the cylinder continues to inhale air and the piston continues to compress the gas. Since the connecting hole is connected to the accommodating hole and the sliding vane groove, after a round of gas compression is completed, the gas can be sucked into the low-pressure chamber in time, and the piston can also compress the newly inhaled gas faster, thereby shortening the start time of intake, improving the intake efficiency, increasing the effective compression volume of the compression chamber, and improving the compression efficiency of the rotary compressor, thereby solving the problem of low efficiency of the rotary compressor in the prior art.

[0060] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0061] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cylinder assembly, characterized in that: include: A cylinder body (10), wherein the cylinder body (10) has a central cavity (11) and a sliding vane groove (12) which are communicated with each other; A piston (20), wherein a compression chamber (21) is formed between an outer peripheral surface of the piston (20) and a chamber wall of the central chamber (11), and the piston (20) is rotatably disposed in the central chamber (11) to compress the gas in the compression chamber (21); a sliding vane (30) slidably disposed in the sliding vane groove (12), one end of the sliding vane (30) being in contact with the outer peripheral surface of the piston (20) so as to separate the compression chamber (21) into a low-pressure chamber (211) and a high-pressure chamber (212); The cylinder body (10) further comprises an exhaust hole (13) and an intake hole (14), wherein the exhaust hole (13) is connected to the high-pressure chamber (212), and the intake hole (14) comprises a receiving hole (141) and a connecting hole (142), wherein one end of the receiving hole (141) extends to the outer peripheral surface of the cylinder body (10), and the other end of the receiving hole (141) extends to the slide vane groove (12) and is connected to the slide vane groove (12), and the receiving hole (141), the slide vane groove (12) and the low-pressure chamber (211) are all connected to the connecting hole (142), so that the gas enters the low-pressure chamber (211) through the receiving hole (141) and the connecting hole (142).

2. The cylinder assembly according to claim 1, characterized in that: The central axis of the accommodating hole (141) coincides with the central axis of the sliding plate slot (12).

3. The cylinder assembly according to claim 2, characterized in that: The cylinder assembly further comprises an air intake pipe (40), wherein the air intake pipe (40) is arranged on the cylinder body (10), and at least a portion of the air intake pipe (40) extends into the accommodating hole (141) so as to supply gas into the accommodating hole (141).

4. The cylinder assembly according to claim 3, characterized in that: The cylinder assembly also includes: A sealing structure (50) is disposed in the air intake pipe (40) and is interference fit with the air intake pipe (40), and the sealing structure (50) is located in the accommodating hole (141); An elastic structure (60), wherein the elastic structure (60) is arranged on the sealing structure (50) and is located in the accommodating hole (141), and one end of the elastic structure (60) abuts against an end of the sliding plate (30) away from the piston (20) so that the sliding plate (30) maintains contact with the outer peripheral surface of the piston (20).

5. The cylinder assembly according to claim 4, characterized in that: The accommodating hole (141) comprises a first hole section (1411) and a second hole section (1412) which are connected to each other, wherein one end of the first hole section (1411) away from the second hole section (1412) extends to the outer peripheral surface of the cylinder body (10), and one end of the second hole section (1412) away from the first hole section (1411) extends to the sliding vane groove (12) and is connected to the sliding vane groove (12); Wherein, the sealing structure (50) is located in the first hole section (1411), and the elastic structure (60) is located in the second hole section (1412).

6. The cylinder assembly according to claim 5, characterized in that: The sealing structure (50) is annular, and the inner diameter D1 of the sealing structure (50), the outer diameter D2 of the elastic structure (60), and the inner diameter D3 of the second hole section (1412) satisfy the following relationship: D1<D2≤D3.

7. The cylinder assembly according to claim 5, characterized in that: The air intake pipe (40) comprises a first pipe section (41) and a second pipe section (42) which are connected to each other, one end of the first pipe section (41) away from the second pipe section (42) is connected to the outside, and one end of the second pipe section (42) away from the first pipe section (41) extends into the accommodating hole (141), and the outer diameter D4 of the sealing structure (50) and the inner diameter D5 of the second pipe section (42) satisfy the following relationship: D5 < D4; the inner diameter D6 of the first hole section (1411) and the outer diameter D7 of the second tube section (42) satisfy: D7<D6.

8. A compressor, characterized in that: The compressor comprises: A housing (1) having a receiving chamber (101) for receiving a cylinder assembly; A fixed pipe (2) is arranged on the housing (1) and is used to sleeve the air intake pipe (40) of the cylinder assembly; Wherein, the cylinder assembly is the cylinder assembly according to any one of claims 1 to 7.

9. The compressor according to claim 8, characterized in that The outer diameter D8 of the first pipe section (41) of the cylinder assembly and the inner diameter D9 of the fixed pipe (2) satisfy the following relationship: D8<D9.

10. The compressor according to claim 9, characterized in that The compressor also includes: A crankshaft (3), the crankshaft (3) being drivingly connected to the piston (20) so as to drive the piston (20) to move; The liquid distributor (4) is arranged outside the accommodating chamber (101), and the liquid distributor (4) is connected to the air intake pipe (40) so as to transport the gas in the liquid distributor (4) to the air intake pipe (40) of the cylinder assembly.

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