Compressor for air conditioner and cylinder assembly thereof

Abstract

The utility model provides a kind of compressor and its cylinder assembly for air conditioner, the cylinder assembly includes: first compression cavity, air inlet channel, second compression cavity and shunt passage, air inlet channel is communicated with first compression cavity, to provide gas to first compression cavity;One end of shunt passage is set on the peripheral wall of air inlet channel, other end is communicated with second compression cavity;Shunt passage has multiple cross sections of different equivalent flow area.This utility model's compressor has higher output stability.

Description

Technical Field

[0001] This utility model relates to the technical field of compressors, and in particular to a compressor for air conditioners and its cylinder assembly. Background Technology

[0002] Rotary compressors are currently mainly used in residential air conditioning systems. They act as power units to drive refrigerant circulation in pipelines to meet cooling or heating needs. The compressor in this technology includes an upper cylinder, a lower cylinder, and a crankshaft. Upper and lower rollers are mounted on the crankshaft, located in the upper and lower cylinders respectively, ensuring that both cylinders receive refrigerant during compressor operation. To reduce manufacturing costs, the compressor in this technology supplies refrigerant to the upper cylinder through an intake channel. The lower cylinder is connected to a distribution channel, which is also connected to the intake channel, allowing a portion of the refrigerant in the intake channel to flow into the distribution channel and then supply refrigerant to the lower cylinder. However, during operation, the lower cylinder receives less refrigerant, resulting in uneven intake between the upper and lower cylinders and causing poor compressor output stability. Utility Model Content

[0003] In view of the above problems, the present invention is proposed to provide a compressor and cylinder assembly for an air conditioner that overcomes or at least partially solves the above problems.

[0004] One objective of this invention is to solve the problem of how to improve the output stability of compressors in related technologies.

[0005] Specifically, this utility model provides a cylinder assembly for a compressor.

[0006] This utility model also provides a compressor for an air conditioner.

[0007] The cylinder assembly for a compressor of this utility model includes: a first compression chamber; an intake passage communicating with the first compression chamber to supply gas to the first compression chamber; a second compression chamber; and a diversion channel, one end of which is disposed on the peripheral wall of the intake passage, and the other end of which is communicating with the second compression chamber; the diversion channel has multiple cross-sections with different equivalent flow areas.

[0008] In some embodiments, the diversion channel includes: a first channel segment, one end of which is disposed on the peripheral wall of the intake channel; along the gas flow direction, the cross-sectional area of ​​the first channel segment gradually decreases, and the equivalent flow area of ​​the first channel segment gradually decreases; or, along the gas flow direction, the cross-sectional area of ​​the first channel segment first gradually decreases and then remains constant, and the equivalent flow area of ​​the first channel segment first gradually decreases and then remains constant.

[0009] The second channel segment is connected to the first channel segment. Along the gas flow direction, the cross-sectional area of ​​the second channel segment is equal, and the equivalent flow area of ​​the second channel segment is equal.

[0010] The third channel section is a groove formed on the peripheral wall of the second compression chamber. Along the gas flow direction, the cross-sectional area of ​​the third channel section gradually decreases, and the equivalent flow area of ​​the third channel section gradually decreases.

[0011] In some embodiments, the cylinder assembly further includes:

[0012] A first cylinder body, the first cylinder body being used to define the first compression chamber, the intake passage being disposed on the first cylinder body; the first passage segment being disposed on the first cylinder body;

[0013] A partition is disposed on one side of the first cylinder body, and the second channel section is disposed on the partition;

[0014] The second cylinder body is disposed on the side of the partition away from the first cylinder body; the second cylinder body is used to define the second compression chamber, and the third channel segment is disposed on the second cylinder body and extends through the end face of the second cylinder body facing the partition.

[0015] In some embodiments, the air intake channel includes a first air intake section and a second air intake section connected in sequence, the diameter of the second air intake section is smaller than the diameter of the first air intake section, and the second air intake section is located between the first air intake section and the first compression chamber; one end of the diversion channel is disposed on the peripheral wall of the second air intake section.

[0016] In some embodiments, the first channel segment is defined by the overlapping of a first hole and a second hole;

[0017] The axis of the first hole, the axis of the second hole, and the axis of the air intake channel are on the same plane; the axis of the first hole and the axis of the second hole are intersecting; the axis of the first hole is perpendicular to the axis of the air intake channel; the axis of the second hole is intersecting the axis of the air intake channel; along the gas flow direction, the axis of the second hole is inclined toward the first compression chamber; the second hole is located on the side of the first hole facing the first compression chamber.

[0018] In some embodiments, the cross-section of the second channel segment is circular, and the axis of the second channel segment is coaxial with the axis of the second hole; the diameter of the second channel segment is greater than or equal to the diameter of the second hole.

[0019] In some embodiments, the third channel segment includes a first groove segment and a second groove segment connected in sequence; along the gas flow direction, the axes of the first groove segment and the second groove segment are both inclined toward the second compression chamber, and the inclination angle of the axis of the second groove segment is greater than the inclination angle of the axis of the first groove segment.

[0020] In some embodiments, the inclination angle of the axis of the second groove segment is greater than the inclination angle of the axis of the second hole towards the first compression chamber; the inclination angle of the axis of the second hole towards the first compression chamber is greater than the inclination angle of the axis of the first groove segment.

[0021] In some embodiments, the wall surface of the first groove segment includes a first arcuate surface and two planar side surfaces connected to the first arcuate surface; each planar side surface is tangent to the first arcuate surface; the axis of the first groove segment is the axis of the first arcuate surface;

[0022] The wall surface of the second groove segment is a second arc-shaped surface, and the axis of the second groove segment is the axis of the second arc-shaped surface;

[0023] The diameters of the first arc-shaped surface, the second arc-shaped surface, and the second hole are equal;

[0024] The axis of the first groove segment and the axis of the second channel segment are on the same plane, and the axis of the first groove segment and the axis of the second channel segment intersect on the end face of the second cylinder body facing the first compression chamber.

[0025] The compressor of this invention includes the cylinder assembly described in any one of the above-mentioned embodiments.

[0026] The cylinder assembly for a compressor according to this embodiment includes a first compression chamber and a second compression chamber. The first compression chamber is connected to an intake passage, and the second compression chamber is connected to the intake passage via a diversion channel. This allows refrigerant to be supplied to the first compression chamber via the intake passage, and a portion of the refrigerant in the intake passage is supplied to the second compression chamber via the diversion channel, thereby reducing the manufacturing cost of the cylinder assembly in this embodiment. Furthermore, because the diversion channel has multiple cross-sections with different equivalent flow areas, the resistance of the diversion channel to the refrigerant airflow is reduced, thereby increasing the intake capacity of the second compression chamber and reducing the performance difference between the first and second compression chambers, thus improving the output stability of the compressor.

[0027] The above and other objects, advantages and features of this utility model will become more apparent to those skilled in the art from the following detailed description of specific embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0028] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0029] Figure 1 This is a schematic structural diagram of a cylinder assembly according to an embodiment of the present utility model;

[0030] Figure 2 It is based on Figure 1 A magnified schematic diagram of the structure at point A in the middle;

[0031] Figure 3 This is a schematic structural diagram of the first cylinder block according to an embodiment of the present utility model;

[0032] Figure 4 This is a schematic cross-sectional structural diagram of the first cylinder block according to an embodiment of the present utility model;

[0033] Figure 5 This is a schematic structural diagram of the first channel segment according to an embodiment of the present utility model;

[0034] Figure 6 This is a schematic structural diagram of the partition according to an embodiment of the present utility model;

[0035] Figure 7 This is a schematic structural diagram of the partition according to an embodiment of the present utility model;

[0036] Figure 8 This is a schematic structural diagram of the second cylinder block according to an embodiment of the present utility model;

[0037] Figure 9 This is a schematic structural diagram of the third channel segment according to an embodiment of the present utility model;

[0038] Figure 10 This is a schematic structural diagram of a compressor according to an embodiment of the present utility model.

[0039] Figure label:

[0040] Cylinder assembly 10;

[0041] First cylinder block 100; First compression chamber 110;

[0042] Air intake passage 200; first air intake section 210; second air intake section 220;

[0043] Second cylinder block 300; Second compression chamber 310;

[0044] Diversion channel 400; Inlet 401; Outlet 402; First channel section 410; First hole 411; Second hole 412; Second channel section 420; Third channel section 430; First section 431; First arc-shaped surface 432; Planar side surface 433; Second section 434; Second arc-shaped surface 435;

[0045] 500 partitions;

[0046] Compressor 20. Detailed Implementation

[0047] The following reference Figures 1 to 10 This invention describes a compressor and cylinder assembly for an air conditioner according to embodiments of the present invention. In this description, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically described, this indicates that other features are not excluded and may be further included.

[0048] Unless otherwise expressly specified and limited, the terms "set," "install," "connect," "link," "fix," and "couple" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0049] Furthermore, in the description of this embodiment, "above" or "below" the second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. That is, in the description of this embodiment, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "below" of the second feature can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0050] In the description of this embodiment, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. 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.

[0051] The cylinder assembly 10 for a compressor 20 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0052] like Figures 1-9 As shown, the cylinder assembly 10 for the compressor 20 in this embodiment of the present invention includes a first compression chamber 110, an intake passage 200, a second compression chamber 310, and a flow divider passage 400.

[0053] The intake passage 200 is connected to the first compression chamber 110 to supply gas to the first compression chamber 110. One end of the diversion passage 400 is disposed on the peripheral wall of the intake passage 200, and the other end of the diversion passage 400 is connected to the second compression chamber 310. The diversion passage 400 has multiple cross-sections with different equivalent flow areas.

[0054] Refrigerant enters the compressor 20 through the inlet of the intake passage 200. A portion of the refrigerant in the intake passage 200 flows along the extension direction of the intake passage 200 and flows into the first compression chamber 110 through the outlet of the intake passage 200. Another portion of the refrigerant in the intake passage 200, when flowing through one end of the branch passage 400, enters the branch passage 400 through that end and flows into the second compression chamber 310 through the other end of the branch passage 400.

[0055] Compared with related technologies, the cylinder assembly 10 for compressor 20 in this embodiment includes a first compression chamber 110 and a second compression chamber 310. The first compression chamber 110 is connected to the intake passage 200, and the second compression chamber 310 is connected to the intake passage 200 through a diversion passage 400. This allows refrigerant to be supplied to the first compression chamber 110 via the intake passage 200, and a portion of the refrigerant in the intake passage 200 is supplied to the second compression chamber 310 via the diversion passage 400, thereby reducing the manufacturing cost of the cylinder assembly 10 in this embodiment. Furthermore, since the diversion passage 400 has multiple cross-sections with different equivalent flow areas, the resistance of the diversion passage 400 to the refrigerant airflow is reduced, thereby increasing the intake capacity of the second compression chamber 310 and reducing the performance difference between the first compression chamber 110 and the second compression chamber 310, thus improving the output stability of the compressor 20.

[0056] In some embodiments, such as Figure 2 As shown, the diversion channel 400 includes a first channel segment 410, a second channel segment 420, and a third channel segment 430.

[0057] One end of the first channel section 410 is disposed on the peripheral wall of the intake channel 200. Along the gas flow direction, the cross-sectional area of ​​the first channel section 410 gradually decreases, and the equivalent flow area of ​​the first channel section 410 gradually decreases. Alternatively, along the gas flow direction, the cross-sectional area of ​​the first channel section 410 first gradually decreases and then remains constant, and the equivalent flow area of ​​the first channel section 410 first gradually decreases and then remains constant. This increases the intake volume of the inlet 401 of the diversion channel and also allows the refrigerant flow in the intake channel 200 to flow more smoothly into the first channel section 410, reducing the resistance of the diversion channel 400 to the refrigerant flow, thus further increasing the intake volume of the second compression chamber 310.

[0058] The second channel section 420 is connected to the first channel section 410. Along the gas flow direction, the cross-sectional area and equivalent flow area of ​​the second channel section 420 are equal. The third channel section 430 is a groove formed on the peripheral wall of the second compression chamber 310. Along the gas flow direction, the cross-sectional area and equivalent flow area of ​​the third channel section 430 gradually decrease. In other words, the extension direction of the third channel section 430 gradually slopes towards the second compression chamber 310, promoting a smoother flow of the refrigerant within the third channel section 430 towards the second compression chamber 310, significantly reducing the flow resistance of the refrigerant within the third channel section 430.

[0059] Specifically, such as Figure 1 As shown, the cylinder assembly 10 of this embodiment further includes a first cylinder body 100, a partition 500, and a second cylinder body 300. The first cylinder body 100 defines a first compression chamber 110, an intake passage 200 is disposed on the first cylinder body 100, and a first passage segment 410 is disposed on the first cylinder body 100. The partition 500 is disposed on one side of the first cylinder body 100, and a second passage segment 420 is disposed on the partition 500. The second cylinder body 300 is disposed on the side of the partition 500 opposite to the first cylinder body 100. The second cylinder body 300 defines a second compression chamber 310, and a third passage segment 430 is disposed on the second cylinder body 300 and penetrates the end face of the second cylinder body 300 facing the partition 500. This allows for the direct machining of an intake passage 200 and a third passage section 430 on the first cylinder block 100, a second passage section 420 on the second cylinder block 300, and a first passage section 410 on the second cylinder block 300. This reduces the structural redundancy of the cylinder assembly 10 in this embodiment and lowers manufacturing costs.

[0060] In some embodiments, such as Figure 4 As shown, the first channel section 410 is defined by the overlapping of the first hole 411 and the second hole 412. Since the inlet 401 of the diversion channel is larger than the outlet 402 of the first channel section 410, the air intake volume of the inlet 401 of the diversion channel is increased. This also allows the refrigerant airflow in the intake channel 200 to flow more smoothly into the first channel section 410, reducing the resistance of the diversion channel 400 to the refrigerant airflow. This, in turn, increases the air intake volume of the second compression chamber 310, reduces the performance difference between the first compression chamber 110 and the second compression chamber 310, and improves the output stability of the compressor 20. Furthermore, the structure where the inlet 401 of the diversion channel is larger than the outlet 402 of the first channel section 410 is naturally formed by the overlapping of multiple holes, greatly reducing the processing difficulty of the first channel section 410.

[0061] Furthermore, such as Figure 5 As shown, the axes of the first hole 411, the second hole 412, and the intake channel 200 are on the same plane; the axes of the first hole 411 and the second hole 412 are intersecting. The axis of the first hole 411 is perpendicular to the axis of the intake channel 200; the axis of the second hole 412 intersects the axis of the intake channel 200; along the gas flow direction, the axis of the second hole 412 is inclined towards the first compression chamber 110, and the second hole 412 is located on the side of the first hole 411 facing the first compression chamber 110. Since the axes of multiple holes intersect at the same point, the refrigerant airflow flowing into the first channel section 410 from the intake channel 200 is fully mixed at the intersection of multiple holes, thereby avoiding excessively high local flow velocity or eddy current generation in the diversion channel 400, which is conducive to the refrigerant entering the second compression chamber 310 more smoothly.

[0062] Specifically, the multiple holes include a first hole 411 and a second hole 412. The axis of the first hole 411 and the axis of the intake channel 200 are on the same plane and are perpendicular to the axis of the intake channel 200. The axis of the second hole 412 intersects the axis of the intake channel 200 and is on the same plane. Along the gas flow direction, the axis of the second hole 412 is inclined towards the first compression chamber 110. That is, the axes of the first hole 411 and the second hole 412 intersect at the same point, which can avoid excessively high local flow velocity or eddy currents in the diversion channel 400 and reduce the resistance of the diversion channel 400 to the refrigerant. Furthermore, by processing the first hole 411 and the second hole 412, the first channel section 410 naturally forms a structure where the inlet is larger than the outlet, reducing the number of processing steps required to form the first channel section 410 and lowering the processing difficulty, thus reducing manufacturing costs.

[0063] For example Figure 5As shown, the multiple holes are arranged in pairs. One hole extends vertically, with its axis represented by a vertically extending dashed line. The other hole is inclined, with its axis represented by a dashed line extending in the inclined direction.

[0064] It should be noted that the number of holes is not limited to two; there can be three, four, five, or other numbers. The axis of at least one of the holes is inclined so that the inlet 401 of the diversion channel formed by the multiple holes is larger than the outlet.

[0065] In some embodiments, such as Figure 4 and Figure 5 As shown, the diameter of the first hole 411 is equal to the diameter of the second hole 412. That is, when machining the first channel segment 410, the tool (e.g., a drill bit) used to machine the first hole 411 and the second hole 412 has the same size specifications. Therefore, the same tool can be used to machine the first hole 411 and the second hole 412, eliminating the need to change tools and thus further improving machining efficiency.

[0066] The angle between the axis of the second hole 412 and the axis of the intake passage 200 is 50° to 70°. Optionally, the angle between the axis of the second hole 412 and the axis of the intake passage 200 is 52° to 66°. Optionally, the angle between the axis of the second hole 412 and the axis of the intake passage 200 is 52° to 66°. Optionally, the angle between the axis of the second hole 412 and the axis of the intake passage 200 is 58° to 60°. This avoids the angle between the axis of the second hole 412 and the axis of the intake passage 200 being too large, reducing manufacturing difficulty.

[0067] The angle between the axis of the second hole 412 and the axis of the intake channel 200 includes, but is not limited to, 50°, 52°, 54°, 59°, 60°, 62°, 66°, 67° or 70°.

[0068] For example Figure 5 As shown, the diameter of the first hole 411 and the second hole 412 is L2, and the angle between the axis of the second hole 412 and the horizontal plane is a. Then the length dimension L1 of the outlet 402 of the first channel section 410 is L2 / sina.

[0069] In some embodiments, the cross-section of the second channel segment 420 is circular, and the axis of the second channel segment 420 is coaxial with the axis of the second hole 412; the diameter of the second channel segment 420 is greater than or equal to the diameter of the second hole 412. Because the axis of the second channel segment 420 is parallel to or coincides with the axis of the second hole 412, the refrigerant airflow in the first channel segment 410 can smoothly flow into the second channel segment 420, thereby reducing resistance to the refrigerant airflow and improving the intake volume of the second compression chamber 310.

[0070] In some embodiments, the partition 500 is disposed on one side of the first cylinder body 100, and the partition 500 contacts and abuts against the corresponding end face of the first cylinder body 100. The portion of the corresponding end face of the first cylinder body 100 that is in complete contact with the partition 500 is a sealing area, thereby preventing air leakage between the first cylinder body 100 and the partition 500.

[0071] Specifically, the partition 500 and the first cylinder body 100 are fastened together by screws, so that the corresponding end face of the first cylinder body 100 is in close contact with the part of the partition 500.

[0072] The distance between the opening edge of the first channel segment 410 on the corresponding end face of the first cylinder block 100 and the inner edge of the sealing area is greater than or equal to 1 mm. For example Figure 5 As shown, the distance between the opening edge of the first channel segment 410 on the corresponding end face of the first cylinder body 100 and the inner edge of the sealing area is L4. The distance between the opening edge of the first channel segment 410 on the corresponding end face of the first cylinder body 100 and the inner edge of the sealing area includes, but is not limited to, 1mm, 2mm, and 3mm.

[0073] The distance between the opening edge of the first channel segment 410 on the corresponding end face of the first cylinder block 100 and the outer edge of the sealing area is greater than or equal to 1 mm. For example Figure 5 As shown, the distance between the opening edge of the first channel segment 410 on the corresponding end face of the first cylinder body 100 and the outer edge of the sealing area is L3. The distance between the opening edge of the first channel segment 410 on the corresponding end face of the first cylinder body 100 and the outer edge of the sealing area includes, but is not limited to, 1mm, 2.2mm, and 3.3mm.

[0074] In other words, the distance between the opening edge of the first channel section 410 on the corresponding end face of the first cylinder body 100 and the outer or inner edge of the sealing area is at least 1 mm, thereby ensuring that there is a sufficiently large sealing area between the first cylinder body 100 and the partition 500, and ensuring that there is no air leakage between the first cylinder body 100 and the partition 500.

[0075] In some embodiments, such as Figure 8 and Figure 9As shown, the third channel section 430 includes a first groove section and a second groove section connected in sequence. Along the gas flow direction, the axes of both the first and second groove sections are inclined towards the second compression chamber 310. Because the axes of the first section 431 and the second section 434 are both inclined towards the second compression chamber 310, the refrigerant entering the third channel section 430 can gradually and smoothly flow towards the second compression chamber 310. Furthermore, the inclination angle of the axis of the second groove section is greater than that of the axis of the first groove section. That is, the degree to which the second section 434 is inclined towards the second compression chamber 310 is greater than the degree to which the first section 431 is inclined towards the second compression chamber 310.

[0076] In some implementations, such as Figure 9 As shown, the inclination angle of the axis of the second groove section is greater than the inclination angle of the axis of the second hole 412 towards the first compression chamber 110. The inclination angle of the axis of the second hole 412 towards the first compression chamber 110 is also greater than the inclination angle of the axis of the first groove section. In other words, the refrigerant in the third channel section 430 is guided sequentially by the first section 431 and the second section 434, gradually flowing smoothly towards the second compression chamber 310, greatly reducing the flow resistance of the refrigerant in the third channel section 430, thereby reducing the performance difference between the first compression chamber 110 and the second compression chamber 310. Especially when the first compression chamber 110 and the second compression chamber 310 operate alternately, the output stability of the compressor 20 is improved.

[0077] Furthermore, the tilt angle of the axis of the second section 434 is greater than that of the axis of the first section 431, which allows the third channel section 430 to bend at a larger angle. This eliminates the need for the second cylinder body 300 to have a large vertical dimension to accommodate the third channel section 430, thereby reducing the overall size of the cylinder assembly 10 in this embodiment and lowering manufacturing costs.

[0078] In some embodiments, the distance between the outlet of the third channel section 430 and the end face of the peripheral wall of the second compression chamber 310 away from the first compression chamber 110 is within 2 mm. That is, the outlet of the third channel section 430 is brought as close as possible to the end face of the peripheral wall of the second compression chamber 310 away from the first compression chamber 110, so that the first section 431 and the second section 434 can transition smoothly to a large extent, ensuring that the refrigerant can flow smoothly from the first section 431 to the second section 434, and reducing the flow resistance of the refrigerant.

[0079] In some embodiments, such as Figure 8As shown, the third channel segment 430 is a groove provided on the peripheral wall of the second compression chamber 310. That is to say, the wall surface of the groove directly forms the third channel segment 430, which increases the flow area of ​​the refrigerant, thereby helping to increase the intake volume of the second compression chamber 310. Furthermore, the third channel segment 430 is formed by directly slotting on the peripheral wall of the second compression chamber 310, which reduces the manufacturing difficulty.

[0080] In some embodiments, such as Figure 9 As shown, the wall surface of the first groove segment includes a first arcuate surface 432 and two planar side surfaces 433 connected to the first arcuate surface 432, each planar side surface 433 being tangent to the first arcuate surface 432. The axis of the first groove segment is the axis of the first arcuate surface 432. That is, the outline of the inlet of the first segment 431 includes a semi-elliptical arc and two first straight lines connecting the two ends of the semi-elliptical arc, the first straight lines being tangent to the semi-elliptical arc. This greatly increases the inlet area of ​​the first segment 431, thereby further improving the intake volume of the second compression chamber 310.

[0081] The wall surface of the second groove segment is the second arc-shaped surface 435, and the axis of the second groove segment is the axis of the second arc-shaped surface 435. The diameters of the first arc-shaped surface 432, the second arc-shaped surface 435, and the second hole 412 are equal. The axis of the first groove segment and the axis of the second channel segment 420 are on the same plane, and the axis of the first groove segment and the axis of the second channel segment 420 intersect at the end face of the second cylinder body 300 facing the first compression chamber 110. When machining the third channel segment 430, the cutting tools (e.g., drill bits) used to machine the first segment 431 and the second segment 434 are of the same size. Therefore, the same cutting tool can be used to machine the first segment 431 and the second segment 434, eliminating the need to change cutting tools and thus further improving machining efficiency.

[0082] In addition, since the wall of the second section 434 is a second arc-shaped surface 435, the flow resistance when the refrigerant comes into contact with the second section 434 is reduced.

[0083] In some embodiments, such as Figure 2 As shown, the intake channel 200 includes a first intake section 210 and a second intake section 220 connected in sequence. The diameter of the second intake section 220 is smaller than the diameter of the first intake section 210, and the second intake section 220 is located between the first intake section 210 and the first compression chamber 110. One end of the diversion channel 400 is disposed on the peripheral wall of the second intake section 220. Because the intake channel 200 adopts a two-section structure with the first intake section 210 and the second intake section 220 connected in sequence, the intake volume of the first compression chamber 110 is increased.

[0084] The compressor 20 of this utility model embodiment includes the cylinder assembly 10 of any of the above embodiments.

[0085] like Figure 10 As shown, the cylinder assembly 10 for compressor 20 according to this embodiment includes a first compression chamber 110 and a second compression chamber 310. The first compression chamber 110 is connected to the intake passage 200, and the second compression chamber 310 is connected to the intake passage 200 through a diversion passage 400. This allows refrigerant to be supplied to the first compression chamber 110 via the intake passage 200, and a portion of the refrigerant in the intake passage 200 is supplied to the second compression chamber 310 via the diversion passage 400, thereby reducing the manufacturing cost of the cylinder assembly 10 in this embodiment. Furthermore, since the diversion passage 400 has multiple cross-sections with different equivalent flow areas, the resistance of the diversion passage 400 to the refrigerant airflow is reduced, thereby increasing the intake capacity of the second compression chamber 310 and reducing the performance difference between the first compression chamber 110 and the second compression chamber 310, thus improving the output stability of the compressor 20.

[0086] Therefore, those skilled in the art should recognize that although many exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. A cylinder assembly for a compressor, characterized in that, include: First compression chamber; An air intake passage is connected to the first compression chamber to supply gas to the first compression chamber; Second compression chamber; The flow divider channel has one end disposed on the peripheral wall of the intake channel and the other end connected to the second compression chamber. The diversion channel has multiple cross sections with different equivalent flow areas.

2. The cylinder assembly according to claim 1, characterized in that, The diversion channel includes: A first channel segment, one end of which is disposed on the peripheral wall of the air intake channel; along the gas flow direction, the cross-sectional area of ​​the first channel segment gradually decreases, and the equivalent flow area of ​​the first channel segment gradually decreases; or, along the gas flow direction, the cross-sectional area of ​​the first channel segment first gradually decreases and then remains constant, and the equivalent flow area of ​​the first channel segment first gradually decreases and then remains constant. The second channel segment is connected to the first channel segment. Along the gas flow direction, the cross-sectional area of ​​the second channel segment is equal, and the equivalent flow area of ​​the second channel segment is equal. The third channel section is a groove formed on the peripheral wall of the second compression chamber. Along the gas flow direction, the cross-sectional area of ​​the third channel section gradually decreases, and the equivalent flow area of ​​the third channel section gradually decreases.

3. The cylinder assembly according to claim 2, characterized in that, Also includes: A first cylinder body, the first cylinder body being used to define the first compression chamber, and the intake passage being disposed on the first cylinder body; The first channel segment is disposed on the first cylinder body; A partition is disposed on one side of the first cylinder body, and the second channel section is disposed on the partition; The second cylinder body is disposed on the side of the partition away from the first cylinder body; the second cylinder body is used to define the second compression chamber, and the third channel segment is disposed on the second cylinder body and extends through the end face of the second cylinder body facing the partition.

4. The cylinder assembly according to claim 3, characterized in that, The air intake channel includes a first air intake section and a second air intake section connected in sequence. The diameter of the second air intake section is smaller than the diameter of the first air intake section. The second air intake section is located between the first air intake section and the first compression chamber. One end of the diversion channel is disposed on the peripheral wall of the second air intake section.

5. The cylinder assembly according to claim 3, characterized in that, The first channel segment is defined by the overlapping of the first hole and the second hole; The axis of the first hole, the axis of the second hole, and the axis of the air intake channel are on the same plane; the axis of the first hole and the axis of the second hole are intersecting; the axis of the first hole is perpendicular to the axis of the air intake channel; the axis of the second hole is intersecting the axis of the air intake channel; along the gas flow direction, the axis of the second hole is inclined toward the first compression chamber; the second hole is located on the side of the first hole facing the first compression chamber.

6. The cylinder assembly according to claim 5, characterized in that, The cross-section of the second channel segment is circular, and the axis of the second channel segment is coaxial with the axis of the second hole; the diameter of the second channel segment is greater than or equal to the diameter of the second hole.

7. The cylinder assembly according to claim 6, characterized in that, The third channel segment includes a first groove segment and a second groove segment connected in sequence; along the gas flow direction, the axes of the first groove segment and the second groove segment are both inclined toward the second compression chamber, and the inclination angle of the axis of the second groove segment is greater than the inclination angle of the axis of the first groove segment.

8. The cylinder assembly according to claim 7, characterized in that, The inclination angle of the axis of the second groove segment is greater than the inclination angle of the axis of the second hole towards the first compression chamber; the inclination angle of the axis of the second hole towards the first compression chamber is greater than the inclination angle of the axis of the first groove segment.

9. The cylinder assembly according to claim 7, characterized in that, The wall surface of the first groove segment includes a first arcuate surface and two planar side surfaces connected to the first arcuate surface; each planar side surface is tangent to the first arcuate surface; the axis of the first groove segment is the axis of the first arcuate surface; The wall surface of the second groove segment is a second arc-shaped surface, and the axis of the second groove segment is the axis of the second arc-shaped surface; The diameters of the first arc-shaped surface, the second arc-shaped surface, and the second hole are equal; The axis of the first groove segment and the axis of the second channel segment are on the same plane, and the axis of the first groove segment and the axis of the second channel segment intersect on the end face of the second cylinder body facing the first compression chamber.

10. A compressor, characterized in that, Includes the cylinder assembly according to any one of claims 1 to 9.

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