Cylinder assembly, compressor and refrigeration device

Abstract

The application provides a cylinder assembly, a compressor and a refrigeration device. The cylinder assembly comprises: at least two cylinders, the at least two cylinders comprising a first cylinder and a second cylinder; a partition plate arranged between the first cylinder and the second cylinder, the partition plate being provided with a through-flow hole; and a suction hole arranged on the partition plate or the first cylinder and communicating with the through-flow hole. In the case where the suction hole is arranged on the first cylinder, the second cylinder is provided with an air inlet channel. In the case where the suction hole is arranged on the partition plate, the first cylinder and the second cylinder are respectively provided with air inlet channels. The second end of the air inlet channel comprises a first channel wall and a second channel wall arranged opposite to each other in a circumferential direction, and at least one of the first channel wall and the second channel wall extends in a direction away from a vane slot of the first cylinder or a vane slot of the second cylinder where the air inlet channel is located.

Description

Technical Field

[0001] This invention relates to the field of cylinder assembly technology, and more specifically, to a cylinder assembly, a compressor, and a refrigeration device. Background Technology

[0002] Currently, a twin-cylinder rotary compressor has two cylinders, each with an air inlet. The liquid receiver also has two suction pipes, which are connected to the two cylinders respectively.

[0003] In related technologies, twin-cylinder rotary compressors employ a twin-cylinder single-intake design to reduce costs. This means the intake port is located in one of the cylinders or on a partition, and this intake port connects to a liquid receiver, which has only one suction pipe. Specifically, the refrigerant entering through the intake port is divided into two parts, which connect to one or two cylinders through distribution holes on the partition. However, the reduced number of intake ports results in insufficient cylinder intake. Summary of the Invention

[0004] The embodiments of the present invention are intended to at least solve one of the technical problems existing in the prior art.

[0005] Therefore, a first aspect of the embodiments of the present invention provides a cylinder assembly.

[0006] A second aspect of the present invention provides a compressor.

[0007] A third aspect of the present invention provides a refrigeration device.

[0008] In view of the above, according to a first aspect of the present invention, a cylinder assembly is provided, the cylinder assembly comprising: at least two cylinders, each cylinder having a communicating chamber and a sliding vane groove, the at least two cylinders including a first cylinder and a second cylinder; a partition plate disposed between the first cylinder and the second cylinder, the partition plate having a flow passage; an intake port disposed on the partition plate or the first cylinder and communicating with the flow passage; when the intake port is disposed on the first cylinder, the second cylinder has an intake passage, a first end of the intake passage communicating with the flow passage, and a second end of the intake passage communicating with the first cylinder. The chambers of the two cylinders are connected; with the intake port located on the partition, the first cylinder and the second cylinder are respectively provided with intake channels, the first end of each intake channel is connected to the flow hole, and the second end of each intake channel is connected to the chamber of the first cylinder or the chamber of the second cylinder where the intake channel is located; wherein, the second end of the intake channel includes a first channel wall and a second channel wall arranged in opposite directions along the circumferential direction, and at least one of the first channel wall and the second channel wall extends in a direction away from the sliding vane groove of the first cylinder or the sliding vane groove of the second cylinder where the intake channel is located.

[0009] The cylinder assembly provided in this embodiment of the invention includes at least two cylinders, a partition, and an intake port. Specifically, each cylinder is provided with a chamber and a sliding vane groove, and the chamber and the sliding vane groove are connected. Specifically, the at least two cylinders include a first cylinder and a second cylinder, that is, the first cylinder is provided with a connected chamber and a sliding vane groove, and the second cylinder is also provided with a connected chamber and a sliding vane groove.

[0010] A baffle is positioned between the first and second cylinders. An intake port is located on the baffle or the first cylinder. The baffle has a flow passage that communicates with the intake port. The second cylinder has an intake channel that communicates with the flow passage, or both the first and second cylinders have intake channels that communicate with the flow passage.

[0011] Understandably, the location of the intake port varies depending on the location of the intake channel. Specifically, when the intake port is located in the first cylinder, the second cylinder has an intake channel. The refrigerant enters the chamber of the second cylinder through the intake port, the flow hole, and the intake channel. Simultaneously, the refrigerant also enters the chamber of the first cylinder through the intake port, achieving a single-intake design for the dual-cylinder compressor and reducing compressor costs.

[0012] Furthermore, when the suction port is located on the partition, both the first and second cylinders are equipped with intake channels. When the refrigerant enters the suction port, it is divided into two parts. One part of the refrigerant enters the chamber of the first cylinder through the flow hole and the intake channel on the first cylinder, while the other part of the refrigerant enters the chamber of the second cylinder through the flow hole and the intake channel on the second cylinder. This achieves a single suction design for the dual-cylinder compressor, reducing the cost of the compressor.

[0013] The second end of the intake passage, i.e. the end where the intake passage connects to the chamber, includes a first passage wall and a second passage wall along the circumferential direction of the cylinder, and the first passage wall and the second passage wall are arranged opposite to each other. At least one of the first passage wall and the second passage wall extends in a direction away from the vane groove of the first cylinder or the vane groove of the second cylinder where the intake passage is located.

[0014] Specifically, when the second cylinder is provided with an intake passage, the first passage wall extends away from the vane groove of the second cylinder. Alternatively, the second passage wall extends away from the vane groove of the second cylinder. Alternatively, both the first passage wall and the second passage wall extend away from the vane groove of the second cylinder.

[0015] When the first cylinder is provided with an intake passage, the first passage wall extends away from the vane groove of the first cylinder. Alternatively, the second passage wall extends away from the vane groove of the first cylinder. Alternatively, both the first passage wall and the second passage wall extend away from the vane groove of the first cylinder.

[0016] In other words, at least one of the first channel wall and the second channel wall extends inclined away from the vane groove, that is, the first channel wall and / or the second channel wall can guide the refrigerant entering the cavity, so that when the refrigerant enters the cavity from the intake channel, it can enter the cavity as close as possible to the direction of the cylinder inner wall, that is, the refrigerant has a component velocity along the piston movement direction, thereby reducing the resistance caused by airflow impact, thereby ensuring the intake volume of the cylinder assembly and improving the operating stability of the compressor with the cylinder assembly.

[0017] It is worth noting that since the second end of the intake passage is connected to the chamber, that is, the first and second passage walls extend to the inner wall of the cylinder, the refrigerant entering the chamber from the intake passage can be guided.

[0018] Optionally, the compressor includes a first piston, a second piston, a first vane, a second vane, and a crankshaft. The crankshaft is connected to the first piston and the second piston. The first piston is located in the chamber of the first cylinder, and the second piston is located in the chamber of the second cylinder. The first vane is disposed in the vane groove of the first cylinder and is connected to the first piston. The second vane is disposed in the vane groove of the second cylinder and is connected to the second piston. Specifically, driven by the crankshaft, the first piston rotates in the first cylinder, and the second piston rotates in the second cylinder to compress the refrigerant entering the first cylinder and the refrigerant entering the second cylinder, respectively.

[0019] In addition, the cylinder assembly provided by the above-described technical solution of the present invention also has the following additional technical features:

[0020] In some technical solutions, the centerline between the first channel wall and the second channel wall may be offset from the central axis of the cylinder.

[0021] In this technical solution, the centerline between the first channel wall and the second channel wall is offset from the central axis of the cylinder. It can be understood that the central axis of the cylinder is the central axis in the axial direction of the cylinder assembly.

[0022] The centerline between the first and second channel walls is offset from the central axis of the cylinder. In other words, both the first and second channel walls extend at an angle away from the vane groove. This allows the first and second channel walls to guide the refrigerant entering the chamber, ensuring that the refrigerant enters the chamber along the direction of the cylinder wall as much as possible when it enters the chamber from the intake channel. This gives the refrigerant a velocity component along the piston movement direction, thereby reducing the resistance caused by airflow impact. This, in turn, ensures the intake volume of the cylinder assembly and improves the operating stability and efficiency of the compressor with this cylinder assembly.

[0023] Furthermore, since both the first and second channel walls extend at an angle away from the vane slot, the distance between the intake channel and the vane slot on the cylinder can be increased. Compared to increasing the size of the intake structure in related technologies, this can improve the operational reliability and stability of the compressor with the cylinder assembly while ensuring cylinder manufacturability.

[0024] In some technical solutions, optionally, the central axis of the intake port and the central axis of the cylinder are located in the same plane; the angle α formed by the projection of the center line between the first channel wall and the second channel wall and the central axis of the intake port in the horizontal plane satisfies 0°<α≤25°.

[0025] In this technical solution, the central axis of the intake port is the central axis in the axial direction of the intake port. The central axis of the intake port and the central axis of the cylinder are located in the same plane, that is, the central axis of the intake port passes through the central axis of the cylinder, and in other words, the central axis of the intake port intersects the central axis of the cylinder.

[0026] The projection of the centerline between the first and second channel walls and the central axis of the intake port onto the horizontal plane forms an angle α. In other words, the first and second channel walls deviate at a certain angle from the intake port, moving away from the vane groove. Since the central axis of the intake port faces the central axis of the cylinder, both the first and second channel walls extend at an angle away from the vane groove, thus guiding the refrigerant entering the chamber. This ensures that the refrigerant, when entering the chamber from the intake channel, enters the chamber as close as possible to the cylinder wall, meaning the refrigerant has a velocity component along the piston's direction of movement. This reduces the resistance caused by airflow impact, thereby ensuring the intake volume of the cylinder assembly.

[0027] Furthermore, it can increase the distance between the intake passage and the vane groove on the cylinder, which can improve the operational reliability and stability of the compressor with this cylinder assembly while ensuring the manufacturability of the cylinder.

[0028] It is understandable that if the first and second channel walls deviate too much from the suction port in the direction away from the vane groove, it will affect the intake and thus the performance of the compressor.

[0029] By limiting the deviation angle of the first channel wall and the second channel wall relative to the intake port in the direction away from the vane groove to between 0° and 25°, it is possible to reduce airflow resistance during intake, ensure the intake volume, and ensure the performance of the compressor with the cylinder assembly.

[0030] In some technical solutions, optionally, the longitudinal section passing through the central axis of the cylinder and the center of the vane groove is the central plane, and the angle β formed by the projection of the center line between the first channel wall and the second channel wall and the central plane in the horizontal plane satisfies 0°≤β<25°.

[0031] In this technical solution, the longitudinal section passing through the central axis of the cylinder and the center of the vane groove is the central plane. The projection of the center line between the first channel wall and the second channel wall and the central plane in the horizontal plane forms an angle β, and the angle β is between 0° and 25°.

[0032] It is understandable that if the angle between the centerline between the first channel wall and the second channel wall and the projection of the center plane onto the horizontal plane is too large, the distance between the intake channel and the vane groove will be too short, affecting the manufacturability of the cylinder and the performance of the compressor.

[0033] By limiting the inclination angle of the centerline of the first channel wall and the second channel wall relative to the center plane to between 0° and 25°, it is possible to reduce airflow resistance during intake, ensure intake volume, and at the same time ensure the manufacturability and reliability of the cylinder assembly, thereby ensuring the performance and efficiency of the compressor with the cylinder assembly.

[0034] In some technical solutions, optionally, 18°≤α+β≤30°.

[0035] In this technical solution, the deviation angle α of the first channel wall and the second channel wall relative to the intake hole in the direction away from the vane groove is defined, and the inclination angle β of the first channel wall and the second channel wall relative to the center plane is defined. That is, the inclination angle of the first channel wall and the second channel wall is further defined, so as to reduce the airflow resistance during intake, ensure the intake volume, and ensure the manufacturability and reliability of the cylinder assembly, thereby ensuring the performance and efficiency of the compressor with the cylinder assembly.

[0036] In some technical solutions, optionally, when the intake port is located in the first cylinder, the intake port is connected to the chamber of the first cylinder, and the intake port, the flow port and the intake passage are connected to form a first flow channel, which is connected to the chamber of the second cylinder.

[0037] In this technical solution, with the suction port located in the first cylinder, the second cylinder has an intake channel. The suction port is connected to the chamber of the first cylinder, and the suction port, flow passage, and intake channel are connected to form a first flow channel, which is also connected to the chamber of the second cylinder. In other words, the refrigerant entering through the suction port is divided into two parts: one part enters the chamber of the first cylinder through the suction port, and the other part enters the chamber of the second cylinder through the first flow channel. This achieves a single-suction design for a dual-cylinder compressor, reducing compressor costs.

[0038] At least one of the first channel wall and the second channel wall extends inclined away from the vane groove, that is, the first channel wall and / or the second channel wall can guide the refrigerant entering the cavity, so that when the refrigerant enters the cavity from the intake channel, it can enter the cavity as close as possible to the direction of the cylinder inner wall, that is, the refrigerant has a component velocity along the piston movement direction, thereby reducing the resistance caused by airflow impact, thereby ensuring the intake volume of the cylinder assembly and improving the operating stability of the compressor with the cylinder assembly.

[0039] In some technical solutions, the first cylinder is optionally provided with a flow divider hole, and the intake hole is connected to the flow passage hole through the flow divider hole.

[0040] In this technical solution, the first cylinder is also provided with a flow divider hole. The intake hole is connected to the flow passage hole through the flow divider hole. That is, the intake hole, the flow divider hole, the flow passage hole and the intake channel are connected to form the first flow channel.

[0041] Specifically, the refrigerant entering through the suction port is divided into two parts. One part enters the chamber of the first cylinder through the suction port, and the other part enters the chamber of the second cylinder through the suction port, the diversion port, the flow passage and the intake channel, thus realizing the single suction design of the dual-cylinder compressor and reducing the cost of the compressor.

[0042] Optionally, the flow divider is located on the side of the first cylinder near the partition.

[0043] In some technical solutions, optionally, the central axis of the diversion hole is in the same plane as the central axis of the intake hole and the central axis of the cylinder; or at least one of the central axis of the intake hole and the central axis of the cylinder is not in the same plane as the central axis of the diversion hole.

[0044] In some technical solutions, optionally, the centerline between the first channel wall and the second channel wall, the central axis of the diversion hole and the central axis of the flow passage are located in the same plane.

[0045] In some technical solutions, optionally, when the air intake is located on the partition, the air intake, the flow passage and the air intake channel of the first cylinder are connected to form a second flow channel, the second flow channel is connected to the chamber of the first cylinder, and the air intake, the flow passage and the air intake channel of the second cylinder are connected to form a third flow channel, the third flow channel is connected to the chamber of the second cylinder.

[0046] In this technical solution, with the suction port located on the partition, both the first and second cylinders are equipped with intake channels. Specifically, the suction port, the flow orifice, and the intake channel of the first cylinder form a second flow channel, while the suction port, the flow orifice, and the intake channel of the second cylinder form a third flow channel. That is, when the refrigerant enters the suction port, it is divided into two parts: one part enters the chamber of the first cylinder through the second flow channel, and the other part enters the chamber of the second cylinder through the third flow channel, achieving a single-suction design for the dual-cylinder compressor and reducing compressor costs.

[0047] At least one of the first channel wall and the second channel wall extends inclined away from the vane groove, that is, the first channel wall and / or the second channel wall can guide the refrigerant entering the cavity, so that when the refrigerant enters the cavity from the intake channel, it can enter the cavity as close as possible to the direction of the cylinder inner wall, that is, the refrigerant has a component velocity along the piston movement direction, thereby reducing the resistance caused by airflow impact, thereby ensuring the intake volume of the cylinder assembly and improving the operating stability of the compressor with the cylinder assembly.

[0048] In some technical solutions, the flow passage may optionally include a first flow branch section and a second flow branch section, wherein the first flow branch section is connected to the intake port and the intake passage of the first cylinder, and the second flow branch section is connected to the intake port and the intake passage of the second cylinder.

[0049] In this technical solution, the flow passage is defined to include a first flow branch section and a second flow branch section. Specifically, the first flow branch section is connected to the intake port and the intake channel of the first cylinder, and the second flow branch section is connected to the intake port and the intake channel of the second cylinder. That is to say, the intake port, the first flow branch section and the intake channel of the first cylinder form a second flow channel, and the intake port, the second flow branch section and the intake channel of the second cylinder form a third flow channel.

[0050] Optionally, along the axial direction of the cylinder assembly, the first flow divider and the second flow divider are located on both sides of the intake port.

[0051] In some technical solutions, optionally, at least one of the central axis of the first diversion section and the central axis of the second diversion section is located in the same plane as the central axis of the air intake; or at least one of the central axis of the first diversion section and the central axis of the second diversion section is not located in the same plane as the central axis of the air intake.

[0052] According to a second aspect of the present invention, a compressor is provided, comprising a cylinder assembly as provided by any of the above-described technical solutions, and thus possessing all the beneficial technical effects of the cylinder assembly, which will not be elaborated further here.

[0053] According to a third aspect of the present invention, a refrigeration device is provided, comprising a cylinder assembly as provided in any of the above-described technical solutions or a compressor as provided in any of the above-described technical solutions, and thus possessing all the beneficial technical effects of the cylinder assembly or the compressor, which will not be elaborated further here.

[0054] Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description or may be learned by practice of the invention. Attached Figure Description

[0055] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0056] Figure 1 One of the structural schematic diagrams of a second cylinder according to an embodiment of the present invention is shown;

[0057] Figure 2 A second schematic diagram of the structure of a second cylinder according to an embodiment of the present invention is shown;

[0058] Figure 3 A schematic diagram of the structure of a first cylinder according to an embodiment of the present invention is shown;

[0059] Figure 4 A schematic diagram of the structure of a partition according to an embodiment of the present invention is shown;

[0060] Figure 5 The third schematic diagram of the structure of the second cylinder according to an embodiment of the present invention is shown.

[0061] in, Figures 1 to 5 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0062] 110 Cylinder, 111 First Cylinder, 112 Second Cylinder, 120 Baffle, 121 Flow Through Hole, 130 Chamber, 140 Sliding Vane Slot, 150 Intake Hole, 160 Intake Channel, 161 First Channel Wall, 162 Second Channel Wall, 170 Centerline, 190 Central Axis of Intake Hole, 210 Third Projection, 220 Flow Diverter Hole, 230 First Projection, 240 Second Projection. Detailed Implementation

[0063] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0064] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0065] The following reference Figures 1 to 5 This describes cylinder assemblies, compressors, and refrigeration equipment provided according to some embodiments of the present invention.

[0066] In one embodiment according to this application, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a cylinder assembly is proposed, comprising: at least two cylinders 110, each cylinder 110 having a communicating chamber 130 and a sliding vane groove 140, the at least two cylinders 110 including a first cylinder 111 and a second cylinder 112; a partition 120 disposed between the first cylinder 111 and the second cylinder 112, the partition 120 having a flow passage 121; an intake port 150 disposed on the partition 120 or the first cylinder 111 and communicating with the flow passage 121; when the intake port 150 is disposed on the first cylinder 111, the second cylinder 112 has an intake passage 160, the first end of the intake passage 160 communicating with the flow passage 121, and the second end of the intake passage 160 communicating with the chamber 130 of the second cylinder 112. The air intake port 150 is located on the partition plate 120. The first cylinder 111 and the second cylinder 112 are respectively provided with air intake channels 160. The first end of each air intake channel 160 is connected to the flow port 121, and the second end of each air intake channel 160 is connected to the chamber 130 of the first cylinder 111 or the chamber 130 of the second cylinder 112 where the air intake channel 160 is located. The second end of the air intake channel 160 includes a first channel wall 161 and a second channel wall 162 arranged in a circumferential direction and opposite to each other. At least one of the first channel wall 161 and the second channel wall 162 extends in a direction away from the sliding vane groove 140 of the first cylinder 111 or the sliding vane groove 140 of the second cylinder 112 where the air intake channel 160 is located.

[0067] The cylinder assembly provided in this embodiment of the invention includes at least two cylinders 110, a partition 120, and an intake port 150. Specifically, each cylinder 110 is provided with a chamber 130 and a sliding vane groove 140, and the chamber 130 and the sliding vane groove 140 are connected. Specifically, the at least two cylinders 110 include a first cylinder 111 and a second cylinder 112. That is, the first cylinder 111 is provided with a connected chamber 130 and a sliding vane groove 140, and the second cylinder 112 is also provided with a connected chamber 130 and a sliding vane groove 140.

[0068] A partition 120 is disposed between the first cylinder 111 and the second cylinder 112. An intake port 150 is disposed on the partition 120 or the first cylinder 111. The partition 120 is provided with a flow passage 121, which communicates with the intake port 150. The second cylinder 112 is provided with an intake channel 160 communicating with the flow passage 121, or both the first cylinder 111 and the second cylinder 112 are provided with intake channels 160 communicating with the flow passage 121.

[0069] Understandably, the location of the intake port 150 varies, and so does the location of the intake channel 160. Specifically, when the intake port 150 is located in the first cylinder 111, the second cylinder 112 is equipped with the intake channel 160. The refrigerant enters the chamber 130 of the second cylinder 112 through the intake port 150, the flow hole 121, and the intake channel 160. At the same time, the refrigerant also enters the chamber 130 of the first cylinder 111 through the intake port 150, realizing a single intake design for the dual-cylinder compressor and reducing the cost of the compressor.

[0070] Furthermore, when the suction port 150 is located on the partition 120, both the first cylinder 111 and the second cylinder 112 are provided with intake channels 160. When the refrigerant enters the suction port 150, it is divided into two parts. One part of the refrigerant enters the chamber 130 of the first cylinder 111 through the flow hole 121 and the intake channel 160 on the first cylinder 111, while the other part of the refrigerant enters the chamber 130 of the second cylinder 112 through the flow hole 121 and the intake channel 160 on the second cylinder 112. This achieves a single suction design for the dual-cylinder compressor, reducing the cost of the compressor.

[0071] The second end of the intake passage 160, i.e., the end where the intake passage 160 communicates with the chamber 130, includes a first passage wall 161 and a second passage wall 162 along the circumferential direction of the cylinder 110, and the first passage wall 161 and the second passage wall 162 are arranged opposite to each other. At least one of the first passage wall 161 and the second passage wall 162 extends in a direction away from the vane groove 140 of the first cylinder 111 or the vane groove 140 of the second cylinder 112 where the intake passage 160 is located.

[0072] Specifically, when the second cylinder 112 is provided with an intake passage 160, the first passage wall 161 extends in a direction away from the vane groove 140 of the second cylinder 112. Alternatively, the second passage wall 162 extends in a direction away from the vane groove 140 of the second cylinder 112. Alternatively, both the first passage wall 161 and the second passage wall 162 extend in a direction away from the vane groove 140 of the second cylinder 112.

[0073] When the first cylinder 111 is provided with an intake passage 160, the first passage wall 161 extends in a direction away from the vane groove 140 of the first cylinder 111. Alternatively, the second passage wall 162 extends in a direction away from the vane groove 140 of the first cylinder 111. Alternatively, both the first passage wall 161 and the second passage wall 162 extend in a direction away from the vane groove 140 of the first cylinder 111.

[0074] In other words, at least one of the first channel wall 161 and the second channel wall 162 extends obliquely away from the vane groove 140, that is, the first channel wall 161 and / or the second channel wall 162 can guide the refrigerant entering the chamber 130, so that when the refrigerant enters the chamber 130 from the intake channel 160, it can enter the chamber 130 as close as possible to the inner wall of the cylinder 110, that is, the refrigerant has a component velocity along the piston movement direction, thereby reducing the resistance caused by airflow impact, thereby ensuring the intake volume of the cylinder assembly and improving the operating stability of the compressor with the cylinder assembly.

[0075] It is worth noting that since the second end of the intake passage 160 is connected to the chamber 130, that is, the first passage wall 161 and the second passage wall 162 extend to the inner wall of the cylinder 110, the refrigerant entering the chamber 130 from the intake passage 160 can be guided.

[0076] Optionally, the compressor includes a first piston, a second piston, a first vane, a second vane, and a crankshaft. The crankshaft is connected to the first and second pistons. The first piston is located in the chamber 130 of the first cylinder 111, and the second piston is located in the chamber 130 of the second cylinder 112. The first vane is disposed in the vane groove 140 of the first cylinder 111 and connected to the first piston. The second vane is disposed in the vane groove 140 of the second cylinder 112 and connected to the second piston. Specifically, driven by the crankshaft, the first piston rotates in the first cylinder 111, and the second piston rotates in the second cylinder 112 to compress the refrigerant entering the first cylinder 111 and the refrigerant entering the second cylinder 112, respectively. Figure 1 As shown, the second piston rotates counterclockwise within the second cylinder 112.

[0077] like Figure 1 and Figure 2 As shown, in some embodiments, optionally, the center line 170 between the first channel wall 161 and the second channel wall 162 is offset from the central axis of the cylinder 110.

[0078] In this embodiment, the centerline 170 between the first channel wall 161 and the second channel wall 162 is offset from the central axis of the cylinder 110. It can be understood that the central axis of the cylinder 110 is the central axis of the cylinder assembly along the axial direction.

[0079] The centerline 170 between the first channel wall 161 and the second channel wall 162 is offset from the central axis of the cylinder 110. That is, both the first channel wall 161 and the second channel wall 162 extend inclined away from the vane groove 140. This means that the first channel wall 161 and the second channel wall 162 can guide the refrigerant entering the chamber 130, so that when the refrigerant enters the chamber 130 from the intake channel 160, it can enter the chamber 130 along the inner wall of the cylinder 110 as much as possible. In other words, the refrigerant has a component velocity along the piston movement direction, thereby reducing the resistance caused by airflow impact, thus ensuring the intake volume of the cylinder assembly and improving the operating stability and efficiency of the compressor with this cylinder assembly.

[0080] Furthermore, since both the first channel wall 161 and the second channel wall 162 extend at an angle away from the vane groove 140, the distance between the intake channel 160 and the vane groove 140 on the cylinder 110 can be increased. Compared with increasing the size of the intake structure in related technologies, this can improve the operational reliability and stability of the compressor with the cylinder assembly while ensuring the manufacturability of the cylinder 110.

[0081] Understandable, Figure 1 Point O in the diagram is the projection of the central axis of cylinder 110 onto the horizontal plane. The center line 170 between the first channel wall 161 and the second channel wall 162 is offset from the central axis of cylinder 110. In other words, the projection of the center line 170 onto the horizontal plane does not pass through point O, i.e., the first projection 230 does not pass through point O.

[0082] like Figure 1 As shown, in some embodiments, optionally, the central axis 190 of the air intake hole and the central axis of the cylinder 110 are located in the same plane; the angle α formed by the projection of the center line 170 between the first channel wall 161 and the second channel wall 162 and the central axis 190 of the air intake hole in the horizontal plane satisfies 0°<α≤25°.

[0083] In this embodiment, the central axis 190 of the air intake port is the central axis in the axial direction of the air intake port 150. The central axis 190 of the air intake port and the central axis of the cylinder 110 are located in the same plane, that is, the central axis 190 of the air intake port passes through the central axis of the cylinder 110, that is, the central axis 190 of the air intake port intersects with the central axis of the cylinder 110.

[0084] Understandable, Figure 1Point O in the figure is the projection of the central axis of cylinder 110 onto the horizontal plane. The central axis 190 of the intake port is located in the same plane as the central axis of cylinder 110. That is to say, the projection of the central axis 190 of the intake port onto the horizontal plane passes through point O, i.e., the second projection 240 passes through point O.

[0085] The projection of the centerline 170 between the first channel wall 161 and the second channel wall 162 onto the central axis 190 of the intake hole in the horizontal plane forms an angle α. Figure 1 As shown, the projection of the center line 170 between the first channel wall 161 and the second channel wall 162 in the horizontal plane is the first projection 230, and the projection of the central axis of the air intake hole in the horizontal plane is the second projection 240. That is, the first projection 230 and the second projection 240 are at an angle α.

[0086] In other words, the first channel wall 161 and the second channel wall 162 are offset at a certain angle from the intake port 150 in a direction away from the vane groove 140. Since the central axis 190 of the intake port is oriented towards the central axis of the cylinder 110, that is, the first channel wall 161 and the second channel wall 162 both extend inclined away from the vane groove 140, thereby guiding the refrigerant entering the chamber 130. This allows the refrigerant to enter the chamber 130 along the inner wall of the cylinder 110 as much as possible when it enters the chamber 130 from the intake channel 160. In other words, the refrigerant has a component velocity along the piston movement direction, thereby reducing the resistance caused by airflow impact and ensuring the intake volume of the cylinder assembly.

[0087] Furthermore, it can increase the distance between the intake passage 160 and the vane groove 140 on the cylinder 110, thereby improving the operational reliability and stability of the compressor with the cylinder assembly while ensuring the manufacturability of the cylinder 110.

[0088] It is understandable that if the first channel wall 161 and the second channel wall 162 deviate too much from the suction port 150 in the direction away from the vane groove 140, it will affect the intake and thus affect the performance of the compressor.

[0089] By limiting the first channel wall 161 and the second channel wall 162 to deviate from the intake port 150 in a direction away from the vane groove 140 by an angle between 0° and 25°, it is possible to reduce airflow resistance during intake, ensure intake volume, and ensure the performance of the compressor with the cylinder assembly.

[0090] Furthermore, since both the first channel wall 161 and the second channel wall 162 extend at an angle away from the vane groove 140, the distance between the intake channel 160 and the vane groove 140 on the cylinder 110 can be increased. Compared with increasing the size of the intake structure in related technologies, this can improve the operational reliability and stability of the compressor with the cylinder assembly while ensuring the manufacturability of the cylinder 110.

[0091] like Figure 1 As shown, in some embodiments, optionally, the longitudinal section passing through the central axis of the cylinder 110 and the center of the slide groove 140 is the central plane, and the angle β formed by the projection of the center line 170 between the first channel wall 161 and the second channel wall 162 and the central plane onto the horizontal plane satisfies 0°≤β<25°.

[0092] In this embodiment, the longitudinal section passing through the central axis of the cylinder 110 and the center of the slide groove 140 is the central plane. The center line 170 between the first channel wall 161 and the second channel wall 162 forms an angle β with the projection of the central plane onto the horizontal plane, and the angle β is between 0° and 25°.

[0093] It is understandable that if the angle between the centerline 170 between the first channel wall 161 and the second channel wall 162 and the projection of the center plane onto the horizontal plane is too large, the distance between the intake channel 160 and the vane groove 140 will be too close, affecting the manufacturability of the cylinder 110 and the performance of the compressor.

[0094] By limiting the inclination angle of the centerline 170 of the first channel wall 161 and the second channel wall 162 relative to the center plane to between 0° and 25°, it is possible to reduce airflow resistance during intake, ensure intake volume, and at the same time ensure the manufacturability and reliability of the cylinder assembly, thereby ensuring the performance and efficiency of the compressor with the cylinder assembly.

[0095] Furthermore, both the first channel wall 161 and the second channel wall 162 extend at an angle away from the vane groove 140, thereby guiding the refrigerant entering the chamber 130. This allows the refrigerant to enter the chamber 130 as close as possible to the inner wall of the cylinder 110 when it enters the chamber 130 from the intake channel 160. In other words, the refrigerant has a component velocity along the piston movement direction, thereby reducing the resistance caused by airflow impact and ensuring the intake volume of the cylinder assembly.

[0096] Furthermore, it can increase the distance between the intake passage 160 and the vane groove 140 on the cylinder 110, thereby improving the operational reliability and stability of the compressor with the cylinder assembly while ensuring the manufacturability of the cylinder 110.

[0097] It is understandable that, such as Figure 1As shown, the projection of the center plane onto the horizontal plane is a line passing through point O and the center of the slider groove 140, namely the third projection 210. That is, the first projection 230 and the third projection 210 are at an angle β.

[0098] like Figure 1 As shown, in some embodiments, optionally, 18°≤α+β≤30°.

[0099] In this embodiment, the deviation angle α of the first channel wall 161 and the second channel wall 162 relative to the intake port 150 in the direction away from the vane groove 140 is defined, and the relationship between the tilt angle β of the first channel wall 161 and the second channel wall 162 relative to the center plane is defined. That is, the tilt angle of the first channel wall 161 and the second channel wall 162 is further defined, so as to reduce the airflow resistance during intake, ensure the intake volume, and ensure the manufacturability and reliability of the cylinder assembly, thereby ensuring the performance and efficiency of the compressor with the cylinder assembly.

[0100] like Figure 3 and Figure 4 As shown, in some embodiments, optionally, when the intake port 150 is provided in the first cylinder 111, the intake port 150 is connected to the chamber 130 of the first cylinder 111, and the intake port 150, the flow port 121 and the air intake channel 160 are connected to form a first flow channel, which is connected to the chamber 130 of the second cylinder 112.

[0101] In this embodiment, with the suction port 150 located in the first cylinder 111, the second cylinder 112 is provided with an intake channel 160. The suction port 150 communicates with the chamber 130 of the first cylinder 111. The suction port 150, the flow hole 121, and the intake channel 160 are connected to form a first flow channel, which is also connected to the chamber 130 of the second cylinder 112. In other words, the refrigerant entering through the suction port 150 is divided into two parts: one part enters the chamber 130 of the first cylinder 111 through the suction port 150, and the other part enters the chamber 130 of the second cylinder 112 through the first flow channel. This achieves a single-suction design for the dual-cylinder compressor, reducing the compressor's cost.

[0102] At least one of the first channel wall 161 and the second channel wall 162 extends obliquely away from the vane groove 140, that is, the first channel wall 161 and / or the second channel wall 162 can guide the refrigerant entering the chamber 130, so that when the refrigerant enters the chamber 130 from the intake channel 160, it can enter the chamber 130 as close as possible to the inner wall of the cylinder 110, that is, the refrigerant has a component velocity along the piston movement direction, thereby reducing the resistance caused by airflow impact, thereby ensuring the intake volume of the cylinder assembly and improving the operating stability of the compressor with the cylinder assembly.

[0103] like Figure 3 As shown, in some embodiments, optionally, the first cylinder 111 is also provided with a flow divider 220, and the intake port 150 is connected to the flow passage 121 through the flow divider 220.

[0104] In this embodiment, the first cylinder 111 is also provided with a flow divider 220, and the intake port 150 is connected to the flow passage 121 through the flow divider 220. That is, the intake port 150, the flow divider 220, the flow passage 121 and the intake channel 160 are connected to form a first flow channel.

[0105] Specifically, the refrigerant entering through the suction port 150 is divided into two parts. One part enters the chamber 130 of the first cylinder 111 through the suction port 150, and the other part enters the chamber 130 of the second cylinder 112 through the suction port 150, the diversion port 220, the flow passage 121 and the intake passage 160, thereby realizing the single suction design of the dual-cylinder compressor and reducing the cost of the compressor.

[0106] Both the first channel wall 161 and the second channel wall 162 extend inclined away from the vane groove 140. That is, the first channel wall 161 and the second channel wall 162 can guide the refrigerant entering the chamber 130, so that when the refrigerant enters the chamber 130 from the intake channel 160, it can enter the chamber 130 as close as possible to the inner wall of the cylinder 110. That is, the refrigerant has a component velocity along the piston movement direction, thereby reducing the resistance caused by airflow impact, thus ensuring the intake volume of the cylinder assembly and improving the operating stability and efficiency of the compressor with the cylinder assembly.

[0107] Furthermore, since both the first channel wall 161 and the second channel wall 162 extend at an angle away from the vane groove 140, the distance between the intake channel 160 and the vane groove 140 on the cylinder 110 can be increased. Compared with increasing the size of the intake structure in related technologies, this can improve the operational reliability and stability of the compressor with the cylinder assembly while ensuring the manufacturability of the cylinder 110.

[0108] Optionally, the flow divider 220 is located on the side of the first cylinder 111 near the partition 120.

[0109] In some embodiments, the central axis of the diversion hole 220 may be in the same plane as the central axis of the intake hole 190 and the central axis of the cylinder 110; or at least one of the central axis of the intake hole 190 and the central axis of the cylinder 110 may not be in the same plane as the central axis of the diversion hole 220.

[0110] In some embodiments, the centerline 170 between the first channel wall 161 and the second channel wall 162, the central axis of the diversion hole 220, and the central axis of the flow hole 121 are located in the same plane.

[0111] In some embodiments, optionally, when the intake port 150 is provided on the partition 120, the intake port 150, the flow port 121 and the intake passage 160 of the first cylinder 111 are connected to form a second flow channel, the second flow channel is connected to the chamber 130 of the first cylinder 111, and the intake port 150, the flow port 121 and the intake passage 160 of the second cylinder 112 are connected to form a third flow channel, the third flow channel is connected to the chamber 130 of the second cylinder 112.

[0112] In this embodiment, with the suction port 150 located on the partition 120, both the first cylinder 111 and the second cylinder 112 are provided with intake channels 160. Specifically, the suction port 150, the flow port 121, and the intake channel 160 of the first cylinder 111 form a second flow channel, and the suction port 150, the flow port 121, and the intake channel 160 of the second cylinder 112 form a third flow channel. That is, when the refrigerant enters the suction port 150, it is divided into two parts: one part of the refrigerant enters the chamber 130 of the first cylinder 111 through the second flow channel, and the other part of the refrigerant enters the chamber 130 of the second cylinder 112 through the third flow channel, realizing a single-suction design for the dual-cylinder compressor and reducing the cost of the compressor.

[0113] At least one of the first channel wall 161 and the second channel wall 162 extends obliquely away from the vane groove 140, that is, the first channel wall 161 and / or the second channel wall 162 can guide the refrigerant entering the chamber 130, so that when the refrigerant enters the chamber 130 from the intake channel 160, it can enter the chamber 130 as close as possible to the inner wall of the cylinder 110, that is, the refrigerant has a component velocity along the piston movement direction, thereby reducing the resistance caused by airflow impact, thereby ensuring the intake volume of the cylinder assembly and improving the operating stability of the compressor with the cylinder assembly.

[0114] In some embodiments, the flow passage 121 may optionally include a first flow branch section and a second flow branch section, the first flow branch section being connected to the intake port 150 and the intake passage 160 of the first cylinder 111, and the second flow branch section being connected to the intake port 150 and the intake passage 160 of the second cylinder 112.

[0115] In this embodiment, the flow passage 121 is defined to include a first flow branch section and a second flow branch section. Specifically, the first flow branch section is connected to the intake port 150 and the intake passage 160 of the first cylinder 111, and the second flow branch section is connected to the intake port 150 and the intake passage 160 of the second cylinder 112. That is to say, the intake port 150, the first flow branch section and the intake passage 160 of the first cylinder 111 form a second flow channel, and the intake port 150, the second flow branch section and the intake passage 160 of the second cylinder 112 form a third flow channel.

[0116] Both the first channel wall 161 and the second channel wall 162 extend inclined away from the vane groove 140. That is, the first channel wall 161 and the second channel wall 162 can guide the refrigerant entering the chamber 130, so that when the refrigerant enters the chamber 130 from the intake channel 160, it can enter the chamber 130 as close as possible to the inner wall of the cylinder 110. That is, the refrigerant has a component velocity along the piston movement direction, thereby reducing the resistance caused by airflow impact, thus ensuring the intake volume of the cylinder assembly and improving the operating stability and efficiency of the compressor with the cylinder assembly.

[0117] Furthermore, since both the first channel wall 161 and the second channel wall 162 extend at an angle away from the vane groove 140, the distance between the intake channel 160 and the vane groove 140 on the cylinder 110 can be increased. Compared with increasing the size of the intake structure in related technologies, this can improve the operational reliability and stability of the compressor with the cylinder assembly while ensuring the manufacturability of the cylinder 110.

[0118] Optionally, along the axial direction of the cylinder assembly, the first flow divider and the second flow divider are located on both sides of the intake port 150.

[0119] In some embodiments, optionally, at least one of the central axis of the first diversion section and the central axis of the second diversion section is located in the same plane as the central axis 190 of the air intake; or at least one of the central axis of the first diversion section and the central axis of the second diversion section is not located in the same plane as the central axis 190 of the air intake.

[0120] According to a second aspect of the present invention, a compressor is provided, comprising a cylinder assembly as provided in any of the above embodiments, and thus possessing all the beneficial technical effects of the cylinder assembly, which will not be elaborated further here.

[0121] Specifically, the compressor also includes a first piston, a second piston, a first vane, a second vane, and a crankshaft. The crankshaft is connected to the first and second pistons. The first piston is located in the chamber 130 of the first cylinder 111, and the second piston is located in the chamber 130 of the second cylinder 112. The first vane is disposed in the vane groove 140 of the first cylinder 111 and connected to the first piston. The second vane is disposed in the vane groove 140 of the second cylinder 112 and connected to the second piston. Specifically, driven by the crankshaft, the first piston rotates in the first cylinder 111, and the second piston rotates in the second cylinder 112 to compress the refrigerant entering the first cylinder 111 and the refrigerant entering the second cylinder 112, respectively. Figure 1 As shown, the second piston rotates counterclockwise within the second cylinder 112.

[0122] The first cylinder 111 has a connected chamber 130 and a sliding vane groove 140, and the second cylinder 112 also has a connected chamber 130 and a sliding vane groove 140. A partition 120 is disposed between the first cylinder 111 and the second cylinder 112. An air intake port 150 is disposed on the partition 120 or the first cylinder 111. The partition 120 has a flow passage 121, and the flow passage 121 communicates with the air intake port 150. The second cylinder 112 has an air intake channel 160 communicating with the flow passage 121, or both the first cylinder 111 and the second cylinder 112 have air intake channels 160 communicating with the flow passage 121.

[0123] Specifically, when the suction port 150 is located in the first cylinder 111, the second cylinder 112 is provided with an intake channel 160. The refrigerant enters the chamber 130 of the second cylinder 112 through the suction port 150, the flow hole 121 and the intake channel 160. At the same time, the refrigerant also enters the chamber 130 of the first cylinder 111 through the suction port 150, realizing the single suction design of the dual-cylinder compressor and reducing the cost of the compressor.

[0124] Furthermore, when the suction port 150 is located on the partition 120, both the first cylinder 111 and the second cylinder 112 are provided with intake channels 160. When the refrigerant enters the suction port 150, it is divided into two parts. One part of the refrigerant enters the chamber 130 of the first cylinder 111 through the flow hole 121 and the intake channel 160 on the first cylinder 111, while the other part of the refrigerant enters the chamber 130 of the second cylinder 112 through the flow hole 121 and the intake channel 160 on the second cylinder 112. This achieves a single suction design for the dual-cylinder compressor, reducing the cost of the compressor.

[0125] The second end of the intake passage 160, i.e., the end where the intake passage 160 communicates with the chamber 130, includes a first passage wall 161 and a second passage wall 162 along the circumferential direction of the cylinder 110, and the first passage wall 161 and the second passage wall 162 are arranged opposite to each other. At least one of the first passage wall 161 and the second passage wall 162 extends in a direction away from the vane groove 140 of the first cylinder 111 or the vane groove 140 of the second cylinder 112 where the intake passage 160 is located.

[0126] In other words, at least one of the first channel wall 161 and the second channel wall 162 extends obliquely away from the vane groove 140, that is, the first channel wall 161 and / or the second channel wall 162 can guide the refrigerant entering the chamber 130, so that when the refrigerant enters the chamber 130 from the intake channel 160, it can enter the chamber 130 as close as possible to the inner wall of the cylinder 110, that is, the refrigerant has a component velocity along the piston movement direction, thereby reducing the resistance caused by airflow impact, thereby ensuring the intake volume of the cylinder assembly and improving the operating stability of the compressor with the cylinder assembly.

[0127] It is worth noting that since the second end of the intake passage 160 is connected to the chamber 130, that is, the first passage wall 161 and the second passage wall 162 extend to the inner wall of the cylinder 110, the refrigerant entering the chamber 130 from the intake passage 160 can be guided.

[0128] According to a third aspect of the present invention, a refrigeration device is provided, comprising a cylinder assembly as provided in any of the above embodiments or a compressor as provided in any of the above embodiments, thereby possessing all the beneficial technical effects of the cylinder assembly or the compressor, which will not be elaborated further here.

[0129] In the description of this specification, the terms "connection," "installation," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0130] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0131] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A cylinder assembly, characterized in that, include: At least two cylinders, each of the cylinders having a communicating chamber and a sliding vane groove, the at least two cylinders including a first cylinder and a second cylinder; A partition is disposed between the first cylinder and the second cylinder, and the partition is provided with flow holes; An air intake hole is provided on the partition plate or the first cylinder and is connected to the flow hole; When the air intake port is located in the first cylinder, the second cylinder is provided with an air intake channel. The first end of the air intake channel is connected to the flow port, and the second end of the air intake channel is connected to the chamber of the second cylinder. When the air intake hole is located on the partition, the first cylinder and the second cylinder are respectively provided with an air intake channel. The first end of each air intake channel is connected to the flow hole, and the second end of each air intake channel is connected to the chamber of the first cylinder or the chamber of the second cylinder where the air intake channel is located. The second end of the intake channel includes a first channel wall and a second channel wall arranged in opposite directions along the circumferential direction. At least one of the first channel wall and the second channel wall extends in a direction away from the vane groove of the first cylinder or the vane groove of the second cylinder where the intake channel is located. The centerline between the first channel wall and the second channel wall is offset from the central axis of the cylinder; The central axis of the air intake hole intersects with the central axis of the cylinder.

2. The cylinder assembly according to claim 1, characterized in that, The central axis of the air intake hole and the central axis of the cylinder are located in the same plane; The angle α formed by the projection of the centerline between the first channel wall and the second channel wall and the central axis of the air intake hole onto the horizontal plane satisfies 0°<α≤25°.

3. The cylinder assembly according to claim 2, characterized in that, The longitudinal section passing through the central axis of the cylinder and the center of the sliding vane groove is the central plane. The angle β formed by the projection of the center line between the first channel wall and the second channel wall and the central plane onto the horizontal plane satisfies 0°≤β<25°.

4. The cylinder assembly according to claim 3, characterized in that, 18°≤α+β≤30°。 5. The cylinder assembly according to any one of claims 1 to 4, characterized in that, When the air intake port is located in the first cylinder, the air intake port is connected to the chamber of the first cylinder, and the air intake port, the flow port and the air inlet channel are connected to form a first flow channel, which is connected to the chamber of the second cylinder.

6. The cylinder assembly according to claim 5, characterized in that, The first cylinder is also provided with a flow divider hole, and the intake hole is connected to the flow passage hole through the flow divider hole.

7. The cylinder assembly according to any one of claims 1 to 4, characterized in that, When the air intake hole is located on the partition, the air intake hole, the flow hole, and the air intake passage of the first cylinder are connected to form a second flow channel, which is connected to the chamber of the first cylinder. The air intake hole, the flow hole, and the air intake passage of the second cylinder are connected to form a third flow channel, which is connected to the chamber of the second cylinder.

8. The cylinder assembly according to claim 7, characterized in that, The flow passage includes a first flow branch section and a second flow branch section. The first flow branch section is connected to the intake port and the intake channel of the first cylinder, and the second flow branch section is connected to the intake port and the intake channel of the second cylinder.

9. A compressor, characterized in that, Includes the cylinder assembly as described in any one of claims 1 to 8.

10. A refrigeration device, characterized in that, include: Cylinder assembly as claimed in any one of claims 1 to 8; or The compressor as described in claim 9.

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