Core of a rotary compressor and rotary compressor

Abstract

This application relates to the field of compressor technology, and discloses a rotor compressor core and a rotor compressor. The rotor compressor core includes: a cylinder with a mounting hole group, the mounting hole group including multiple mounting holes, the mounting holes extending axially along the core, a limiting surface being provided between any two adjacent mounting holes, and the mounting holes communicating with an inlet port, an exhaust port, and a slide groove; a crankshaft and multiple pistons, the pistons being sleeved on the outside of the crankshaft, a partition being sandwiched between any two adjacent pistons, the crankshaft being inserted into the cylinder, and the pistons extending into their corresponding mounting holes, the partitions engaging with the corresponding limiting surfaces to separate adjacent mounting holes; a flange covering the end of the cylinder; and a vane assembly disposed in a slide groove and adapted to engage with the pistons. By providing multiple mounting holes in the cylinder and simultaneously installing multiple pistons and partitions within the cylinder, the sequential connection process of multiple cylinders is reduced.

Description

Technical Field

[0001] This application relates to the field of compressor technology, and in particular to a rotor compressor core and a rotor compressor having the rotor compressor core. Background Technology

[0002] The compressor core is the component in a rotary compressor used to compress the medium. It is housed within the compressor casing, and the compressor's drive motor drives the core to compress the medium. To improve the compression efficiency of the core and the continuity of medium compression in the rotary compressor, multiple cylinder assemblies are installed within the core. Each cylinder assembly includes a cylinder and a piston. By eccentrically positioning the piston on the crankshaft, and with the crankshaft driven by the motor rotating the piston, each piston is positioned at a different location within the cylinder, allowing each cylinder assembly to operate under different medium compression conditions.

[0003] Currently, in the assembly process of existing rotary compressor cores, assemblers first install a partition on one end wall of the cylinder, and then connect multiple cylinders together sequentially. This existing assembly process is overly cumbersome, and the precise alignment required for cylinder connection places excessively high demands on the assembly equipment, increasing the assembly difficulty and time, thus raising the production cost of the rotary compressor. Furthermore, the excessively large total contact area between the multiple cylinders and the outer space of the core increases media leakage, affecting the energy efficiency of the rotary compressor. Utility Model Content

[0004] The purpose of this application is to simplify the assembly process of the mechanism, reduce the precision requirements during mechanism assembly, thereby reducing the assembly time of the mechanism and thus reducing the production cost of the rotary compressor.

[0005] To achieve the above objectives, this application provides a rotor compressor core.

[0006] This application further provides a rotary compressor.

[0007] The rotor compressor core according to this application includes: a cylinder, the cylinder having a mounting hole group, the mounting hole group including a plurality of sequentially connected mounting holes, each mounting hole extending axially along the core, the mounting hole group penetrating the cylinder axially along the core, a limiting surface being provided between any two adjacent mounting holes, each mounting hole being connected to an inlet hole, an outlet hole, and a slide groove spaced apart circumferentially along the core, the inlet hole and the outlet hole being connected between the mounting hole and the outer side of the core, the slide groove being located between the inlet hole and the outlet hole; a crankshaft and a plurality of pistons, the pistons being sleeved on the outer side of the crankshaft, the plurality of pistons extending axially along the core. The crankshafts are arranged axially and correspond one-to-one with the mounting holes. A partition is sandwiched between any two adjacent pistons. The crankshaft is inserted into the cylinder. Each piston extends into the corresponding mounting hole. The piston is in a stop-fitting engagement with the inner circumferential wall of the mounting hole. Each partition is in a stop-fitting engagement with the corresponding limiting surface to separate two adjacent mounting holes. A flange is provided along the axial direction of the movement, covering the end of the cylinder and connecting with the cylinder. The crankshaft passes through the flange. A sliding vane assembly is elastically and telescopically disposed in the sliding groove, with a portion of its structure extending out of the sliding groove to stop-fit ​​with the piston.

[0008] According to the rotary compressor core of this application, by providing multiple mounting holes in the cylinder and simultaneously installing multiple pistons and partitions within the cylinder, the number of cylinders is reduced compared to the prior art. This reduces the steps of sequentially connecting multiple cylinders, simplifying the assembly process of the core. Furthermore, the cylinders do not require centering adjustments, lowering the precision requirements during core assembly and thus reducing assembly time, thereby lowering the production cost of the rotary compressor. Additionally, the single-cylinder configuration reduces the total contact area between the cylinder and the outer space of the core, thereby reducing leakage of the medium within the core and improving the energy efficiency of the rotary compressor.

[0009] In some examples of this application, the diameters of two adjacent mounting holes are different, and the stepped surface formed between the two mounting holes is the limiting surface. The outer diameter of the partition matches the larger of the two mounting holes.

[0010] In some examples of this application, a limiting groove is provided between two adjacent mounting holes. The limiting groove is connected to both adjacent mounting holes. The radial dimension of the limiting groove is smaller than the diameter of one of the two adjacent mounting holes and larger than the diameter of the other. The partition is embedded in the limiting groove to limit and cooperate with the limiting groove. The bottom of the limiting groove is constructed as the limiting surface.

[0011] In some examples of this application, along the insertion direction of the crankshaft within the cylinder, the diameter of any two adjacent mounting holes gradually decreases.

[0012] In some examples of this application, along the axial direction of the movement, in two adjacent mounting holes, the diameter of the mounting hole closer to the outer side of the movement is larger than the diameter of the mounting hole closer to the inner side of the movement.

[0013] In some examples of this application, a compression cavity for compressing the medium is formed within the mounting hole, and any two compression cavities have the same volume.

[0014] In some examples of this application, the height dimension of the nth compression chamber is Hn in the direction from one end axial end wall of the mechanism to the other end axial end wall, and the outer diameter dimension of the nth piston is Dn. Hn and Dn satisfy the relationship: H1*D1=H2*D2=…=Hn*Dn.

[0015] In some examples of this application, the outer peripheral wall of the crankshaft is provided with a positioning groove, which extends radially along the crankshaft; the partition includes a plurality of sub-partitions, each of which extends into the positioning groove to abut against the inner wall of the positioning groove, and the plurality of sub-partitions are connected end to end in sequence along the circumference of the movement.

[0016] In some examples of this application, the air inlet and / or the exhaust port is located on the cylinder and extends radially along the movement, and / or the air inlet and / or the exhaust port is located on the flange and extends axially along the movement.

[0017] The rotary compressor according to this application includes the aforementioned rotary compressor core.

[0018] According to the rotary compressor of this application, a core is provided inside the rotary compressor. By providing multiple mounting holes in the cylinder of the core and simultaneously installing multiple pistons and partitions inside the cylinder, the number of cylinders is reduced compared to the prior art. This reduces the steps of sequentially connecting multiple cylinders, making the assembly process of the core simpler. Furthermore, the cylinders do not require centering adjustment, reducing the precision requirements during core assembly and thus reducing assembly time, thereby lowering the production cost of the rotary compressor. Additionally, the single-cylinder configuration reduces the total contact area between the cylinder and the outer space of the core, thereby reducing leakage of the medium inside the core and improving the energy efficiency of the rotary compressor. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the movement according to an embodiment of this application;

[0020] Figure 2 This is a top view of the movement after the flange has been removed, according to an embodiment of this application;

[0021] Figure 3 This is a schematic diagram of the piston and diaphragm disposed on the crankshaft according to an embodiment of this application;

[0022] Figure 4 This is a schematic diagram of a cylinder according to an embodiment of this application;

[0023] Figure 5 This is a cross-sectional view of the first embodiment of the movement of this application;

[0024] Figure 6 This is a cross-sectional view of a second embodiment of the movement of this application;

[0025] Figure 7 This is a cross-sectional view of a third embodiment of the movement of this application.

[0026] In the picture, 100 represents the movement.

[0027] 1. Cylinder; 11. Mounting hole group; 111. Mounting hole; 112. Compression chamber; 12. Limiting surface; 13. Air inlet; 14. Exhaust port; 15. Slide groove; 16. Limiting groove;

[0028] 2. Crankshaft; 21. Positioning groove; 3. Piston; 4. Diaphragm; 41. Sub-diaphragm; 5. Flange; 6. Sliding vane assembly. Detailed Implementation

[0029] The specific embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but are not intended to limit the scope of this application.

[0030] like Figures 1-7 As shown, this application discloses a rotor compressor core 100 and a rotor compressor, with the core 100 disposed within the rotor compressor. According to this application embodiment, the core 100 includes: a cylinder 1, a crankshaft 2, multiple pistons 3, a flange 5, and a vane assembly 6.

[0031] Among them, such as Figures 1-4 As shown, the cylinder 1 is provided with a mounting hole group 11, which includes a plurality of sequentially connected mounting holes 111. Each mounting hole 111 extends along the axial direction of the mechanism 100. The mounting hole group 11 penetrates the cylinder 1 along the axial direction of the mechanism 100. It should be noted that the axial direction of the mechanism 100 can refer to... Figure 5The mounting hole 111 is connected to an air inlet 13, an exhaust 14, and a slide groove 15 spaced apart circumferentially along the core 100. The air inlet 13 and the exhaust 14 are connected between the inside of the mounting hole 111 and the outside of the core 100. The medium can flow into the mounting hole 111 from the air inlet 13, and the medium in the air inlet 13 can be discharged to the outside of the core 100 from the exhaust 14. The medium can be refrigerant or other types of gas.

[0032] And, as Figure 3 As shown, piston 3 is sleeved on the outside of crankshaft 2, and multiple pistons 3 are arranged sequentially along the axial direction of crankshaft 2. The axial direction of crankshaft 2 is the same as the axial direction of movement 100, that is, multiple pistons 3 are arranged along... Figure 5 The pistons 3 are arranged sequentially in a vertical direction. Multiple pistons 3 correspond one-to-one with multiple mounting holes 111, meaning the number of pistons 3 is the same as the number of mounting holes 111. A partition 4 is sandwiched between any two adjacent pistons 3. The partition 4 separates the two adjacent pistons 3 and is also fitted onto the outside of the crankshaft 2. The crankshaft 2 is inserted into the cylinder 1, and each piston 3 extends into its corresponding mounting hole 111. The piston 3 abuts against the inner circumferential wall of the mounting hole 111. When the crankshaft 2 is driven by the drive motor of the rotary compressor, the crankshaft 2 drives the piston 3 to rotate eccentrically along the inner wall of the corresponding mounting hole 111 within the cylinder 1.

[0033] Meanwhile, an annular limiting surface 12 is provided between any two adjacent mounting holes 111. Each partition 4 is in a stop-fitting relationship with the corresponding limiting surface 12. The partition 4 can close the gap between the partition 4 and the limiting surface 12, so as to block the two adjacent mounting holes 111 and thus separate the two adjacent mounting holes 111. This arrangement can form an independent space in each mounting hole 111, and there is basically no medium exchange between two adjacent mounting holes 111. This allows the piston 3 to smoothly compress the medium when rotating in the corresponding mounting hole 111.

[0034] Furthermore, such as Figure 1 , Figure 2As shown, the slide groove 15 is located between the air inlet 13 and the exhaust port 14. The slide plate assembly 6 is elastically and telescopically disposed in the slide groove 15, with part of its structure extending out of the slide groove 15 to stop and cooperate with the piston 3. The slide plate assembly 6 may include a slide plate and an elastic element, which may be a helical spring. The slide plate is slidably disposed in the slide groove 15, and the elastic element is elastically deformable disposed between the slide plate and the bottom of the slide groove 15. By making the slide plate stop and cooperate with the piston 3, when the piston 3 rotates, it drives the slide plate to move towards the slide groove 15. After the elastic element is squeezed and deformed, it drives the slide plate to move towards the outside of the slide groove 15. In this way, the slide plate and the piston 3 can be kept at a stop. The slide plate and the piston 3 together divide the mounting hole 111 into a low-pressure area and a high-pressure area. The low-pressure area is connected to the air inlet 13, and the high-pressure area is connected to the exhaust port 14. When the piston 3 rotates, it draws the medium into the low-pressure area, and then compresses the medium and discharges it from the exhaust port 14 to the outside of the mechanism 100, so as to achieve the technical effect of the mechanism 100 compressing the medium.

[0035] Furthermore, along the axial direction of the movement 100, the flange 5 covers the end of the cylinder 1 and is connected and engaged with the cylinder 1. In some embodiments, the cylinder 1 is provided with a first connecting portion, and the flange 5 is provided with a second connecting portion. Fasteners pass through the first connecting portion and the second connecting portion in sequence to install the flange 5 onto the cylinder 1. In some specific embodiments, both the first connecting portion and the second connecting portion are bolt holes, and the fasteners can be bolts. The flange 5 is used to cover the opening formed by the mounting hole assembly 11 at the end of the cylinder 1 to minimize the leakage of medium from the openings at both ends of the cylinder 1 to the outside of the movement 100. The crankshaft 2 passes through the flange 5, and the flange 5 is also used to support the crankshaft 2 to reduce the shaking of the crankshaft 2 within the movement 100.

[0036] Therefore, by providing multiple mounting holes 111 in cylinder 1 and simultaneously installing multiple pistons 3 and partitions 4 within cylinder 1, the number of cylinders 1 is reduced compared to existing technologies. This reduces the sequential connection process of multiple cylinders 1, simplifying the assembly process of the core 100. Furthermore, cylinder 1 does not require centering adjustment, lowering the precision requirements during core 100 assembly and thus reducing assembly time, thereby lowering the production cost of the rotary compressor. Additionally, the use of a single cylinder 1 reduces the total contact area between cylinder 1 and the outer space of the core 100, thereby reducing media leakage within the core 100 and improving the energy efficiency of the rotary compressor.

[0037] like Figure 5As shown, in some embodiments of this application, the diameters of two adjacent mounting holes 111 are different, and the stepped surface formed between the two corresponding mounting holes 111 is a limiting surface 12. The stepped surface formed between the two mounting holes 111 is located within the mounting hole 111 with the larger diameter. When the partition 4 and the stepped surface are engaged, the partition 4 can seal the gap between the partition 4 and the stepped surface. The partition 4 can restrict the medium in the mounting hole 111 from seeping into the adjacent mounting hole 111 along the gap between the partition 4 and the stepped surface, thereby preventing a decrease in the medium compression efficiency of the mechanism 100.

[0038] Furthermore, the outer diameter of the partition 4 matches the larger of the two mounting holes 111. The inner wall of the larger mounting hole 111 and the partition 4 are in a stop-fitting relationship. The inner wall of the mounting hole 111 can restrict the partition 4 from moving radially along the movement 100, thereby minimizing the abnormal noise caused by the movement of the partition 4 and also minimizing the failure of the partition 4 when it moves.

[0039] Furthermore, an anti-rotation structure can be provided between two adjacent mounting holes 111. When the piston 3 is driven and rotates within the mounting hole 111, the anti-rotation structure can restrict the partition 4 from rotating around its central axis between the two adjacent mounting holes 111, thereby preventing the sealing effect of the partition 4 from being affected. In some specific embodiments, the anti-rotation structure can be constructed as an anti-rotation protrusion. The anti-rotation protrusion is located on one of the outer peripheral wall of the partition 4 and the inner peripheral wall of the mounting hole 111, and protrudes towards the other. The anti-rotation protrusion can reduce the local radial dimension of the mounting position of the partition 4, so that the partition 4 can be assembled into the cylinder 1 by interference fit, thereby achieving the technical effect of preventing the partition 4 from rotating.

[0040] In some other embodiments, one of the inner peripheral walls of the partition 4 and the mounting hole 111 is provided with an anti-rotation pin, and the other is provided with an anti-rotation groove. By inserting the anti-rotation pin into the anti-rotation groove, an anti-rotation engagement is achieved between the partition 4 and the cylinder 1. However, this application is not limited to this. For example, in some other embodiments, the partition 4 and the inner peripheral wall of the mounting hole 111 can be connected by a snap-fit ​​mechanism. This can also achieve the technical effect of confining the partition 4 within the cylinder 1, thereby preventing the partition 4 from rotating relative to the cylinder 1.

[0041] like Figure 6 , Figure 7As shown, in some other embodiments of this application, a limiting groove 16 can be provided between two adjacent mounting holes 111. The limiting groove 16 is connected to both adjacent mounting holes 111, thus ensuring that the piston 3 and the partition 4 are sequentially installed into the mounting holes 111 in a preset order. The radial dimension of the limiting groove 16 is smaller than the diameter of one of the two adjacent mounting holes 111 and larger than the diameter of the other. This allows the outer edge of the limiting groove 16 to be radially spaced from the larger mounting hole 111 in the movement 100. The bottom of the limiting groove 16 forms a stepped surface with the smaller mounting hole 111 in the two adjacent mounting holes 111. The stepped surface between the limiting groove 16 and the mounting hole 111 is constructed as a limiting surface 12. The partition 4 is embedded in the limiting groove 16 to limit and cooperate with the limiting groove 16.

[0042] The radial dimension of the partition 4 matches the radial dimension of the limiting groove 16, and the thickness dimension of the partition 4 matches the depth dimension of the limiting groove 16. Both the thickness direction of the partition 4 and the depth direction of the limiting groove 16 can be specified. Figure 6 In the vertical direction, the groove wall of the limiting groove 16 and the partition 4 are in a stop-fitting relationship. The groove wall of the limiting groove 16 can restrict the partition 4 from moving radially along the movement 100, thereby minimizing the abnormal noise caused by the movement of the partition 4 and preventing the partition 4 from failing when it moves. At the same time, the partition 4 is not likely to protrude out of the limiting groove 16 and extend into the mounting hole 111, thus minimizing the interference between the partition 4 and the piston 3, thereby reducing the wear rate of the components in the movement 100.

[0043] like Figure 5 , Figure 6 As shown, in some embodiments of this application, along the insertion direction of the crankshaft 2 within the cylinder 1, the diameter of any two adjacent mounting holes 111 gradually decreases. Figure 6 In the embodiment shown, the insertion direction of the crankshaft 2 can be... Figure 6 In the direction from top to bottom, since the outer diameter of the piston 3 matches the diameter of the mounting hole 111, when the diameter of the mounting hole 111 decreases, the diameter of the piston 3 decreases accordingly. By making the diameter between any two adjacent mounting holes 111 gradually decrease along the insertion direction of the crankshaft 2 in the cylinder 1, the piston 3, which is inserted into the cylinder 1 first, can pass through at least one mounting hole 111 in sequence and smoothly extend into the corresponding mounting hole 111. This can prevent the piston 3 from interfering with the inner wall of the mounting hole 111 during the assembly process of the movement 100, which helps to reduce the installation difficulty of the movement 100 and further speeds up the assembly of the movement 100.

[0044] Furthermore, in Figure 6In the embodiment shown, when the diameter of any two adjacent mounting holes 111 gradually decreases along the insertion direction of the crankshaft 2 in the cylinder 1, the radial dimension of the partition 4 also gradually decreases. This allows the partition 4, which is inserted into the cylinder 1 first, to pass through at least one mounting hole 111 in sequence and smoothly stop with the corresponding limiting surface 12. This prevents the partition 4 from interfering with the inner wall of the mounting hole 111 during the assembly of the movement 100, which helps to reduce the installation difficulty of the movement 100 and further speeds up the assembly of the movement 100.

[0045] like Figure 7 As shown, in some other embodiments of this application, when the piston 3 is sequentially inserted into the cylinder 1 from both ends along the axial direction of the cylinder 1, along the axial direction of the movement 100, the diameter of the mounting hole 111 closer to the outer side of the movement 100 is larger than the diameter of the mounting hole 111 closer to the inner side of the movement 100. This arrangement allows the piston 3, which is inserted into the cylinder 1 from both ends, to smoothly extend into the corresponding mounting hole 111 after passing through at least one mounting hole 111 in sequence. This prevents interference between the piston 3 and the inner wall of the mounting hole 111 during the assembly process of the movement 100, helps to reduce the installation difficulty of the movement 100, and further speeds up the assembly of the movement 100.

[0046] Furthermore, in Figure 7 In the illustrated embodiment, when the diameter of the mounting hole 111 near the outer side of the movement 100 is larger than that of the mounting hole 111 near the inner side of the movement 100, the radial dimension of the partition 4 near the outer side of the movement 100 is larger than that of the partition 4 near the inner side of the movement 100. This allows the partition 4, which is first installed into the cylinder 1 from both ends, to pass through at least one mounting hole 111 and smoothly abut against the corresponding limiting surface 12. This prevents interference between the partition 4 and the inner wall of the mounting hole 111 during the assembly process of the movement 100, helps to reduce the installation difficulty of the movement 100, and further speeds up the assembly of the movement 100.

[0047] like Figure 2 , Figures 5-7 As shown, in some embodiments of this application, a compression chamber 112 for compressing the medium is formed in the mounting hole 111. The piston 3 rotates in the compression chamber 112 to compress the medium. Any two compression chambers 112 have the same volume, so that the medium pressure on each piston 3 is the same, thereby making the crankshaft 2 dynamically balanced during operation, reducing the operating noise of the crankshaft 2, and reducing the wear rate of the components in the movement 100, thereby improving the working reliability of the movement 100.

[0048] Furthermore, such as Figure 2 , Figure 5 As shown, in the direction from one end of the axial end wall of the mechanism 100 to the other end of the axial end wall, the height dimension of the nth compression chamber 112 is Hn, for example, the height dimension of the first compression chamber 112 is H1, the height dimension of the second compression chamber 112 is H2, and the outer diameter dimension of the nth piston 3 is Dn, for example, the outer diameter dimension of the first piston 3 is D1, the outer diameter dimension of the second piston 3 is D2. Hn and Dn satisfy the relationship: H1*D1=H2*D2=…=Hn*Dn.

[0049] In this equation, the medium pressure on each piston 3 is F, which satisfies the following relationship: F=△P*H*D, where ΔP is the pressure difference between the intake and exhaust in each compression chamber 112, H is the height of the compression chamber 112, and D is the outer diameter of the piston 3. Since the pressure difference ΔP between the intake and exhaust in multiple compression chambers 112 is the same, and the medium pressure F on multiple pistons 3 is the same, by simplifying the above equation, it can be concluded that the product of the height H of any two compression chambers 112 and the outer diameter D of the piston 3 is equal, that is, H1*D1=H2*D2=…=Hn*Dn.

[0050] like Figure 3 , Figures 5-7 As shown, the outer peripheral wall of the crankshaft 2 can be provided with a positioning groove 21. The positioning groove 21 extends radially along the crankshaft 2. The partition 4 extends into the positioning groove 21, and the partition 4 is abutted against the inner wall of the positioning groove 21. The positioning groove 21 can position the partition 4 to restrict the axial movement of the partition 4 along the crankshaft 2, thereby minimizing the separation of the partition 4 from the limiting surface 12, and thus preventing the exchange of media between two adjacent mounting holes 111.

[0051] Furthermore, when the crankshaft 2 is provided with a positioning groove 21, the outer diameter of the crankshaft 2 at the stop point of the partition 4 is smaller than the outer diameter of the crankshaft 2 at the stop point of the piston 3. If the partition 4 is made as a single piece, it will prevent the partition 4 from moving along the crankshaft 2 into the positioning groove 21. Therefore, in some embodiments, the partition 4 includes multiple sub-partitions 41, each of which extends into the positioning groove 21 to abut against the inner wall of the positioning groove 21. Along the circumference of the movement 100, the multiple sub-partitions 41 are connected end to end in sequence. By connecting the multiple sub-partitions 41 end to end in sequence, the multiple sub-partitions 41 can together form a complete partition 4, thereby allowing the partition 4 to be smoothly installed in the positioning groove 21.

[0052] like Figure 1 , Figure 6As shown, in some embodiments of this application, the air inlet 13 and / or the exhaust port 14 are disposed on the cylinder 1 and extend radially along the movement 100. That is, the air inlet 13 is disposed on the cylinder 1, or the exhaust port 14 is disposed on the cylinder 1, or both the air inlet 13 and the exhaust port 14 are disposed on the cylinder 1. Specifically, the air inlet 13 and / or the exhaust port 14 are disposed on the outer peripheral wall of the cylinder 1.

[0053] like Figure 1 As shown, in some other embodiments of this application, the air inlet 13 and / or the exhaust port 14 are disposed on the flange 5 and extend axially along the movement 100. That is, the air inlet 13 is disposed on the flange 5, or the exhaust port 14 is disposed on the flange 5, or both the air inlet 13 and the exhaust port 14 are disposed on the flange 5. Specifically, the air inlet 13 and / or the exhaust port 14 are disposed on the axial end wall of the flange 5. Figure 1 In the embodiment shown, the axial end wall of flange 5 can refer to Figure 1 The upper or lower end wall of the flange 5. It should be noted that when the mounting hole 111 is provided at both ends of the cylinder 1 along the axial direction of the core 100, the air inlet 13 and / or the exhaust hole 14 can be provided on the axial end wall of the flange 5.

[0054] Furthermore, since the cylinder 1 is provided with multiple mounting holes 111, when setting the positions of the air inlet 13 and the exhaust port 14, the mechanism 100 can use one of the two arrangement methods mentioned above, or it can combine the two arrangement methods mentioned above. This arrangement can improve the flexibility of setting the positions of the air inlet 13 and the exhaust port 14.

[0055] Based on this, this application further discloses a rotary compressor. The rotary compressor according to an embodiment of this application includes the core 100 described above. The core 100 is disposed within the casing of the rotary compressor and is connected to a drive motor. By providing multiple mounting holes 111 in the cylinder 1 of the core 100 and simultaneously installing multiple pistons 3 and partitions 4 within the cylinder 1, compared to the prior art, the number of cylinders 1 is reduced, decreasing the sequential connection process of multiple cylinders 1. This simplifies the assembly process of the core 100, and eliminates the need for centering adjustment of the cylinders 1, reducing the precision requirements during assembly of the core 100. This reduces the assembly time of the core 100 and consequently lowers the production cost of the rotary compressor. Furthermore, the use of a single cylinder 1 reduces the total contact area between the cylinder 1 and the outer space of the core 100, thereby reducing the leakage of the medium within the core 100 and improving the energy efficiency of the rotary compressor.

[0056] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of this application, and these improvements and substitutions should also be considered within the scope of protection of this application.

Claims

1. A rotor compressor core, characterized by, include: A cylinder is provided with a mounting hole group, which includes a plurality of sequentially connected mounting holes. Each mounting hole extends along the axial direction of the movement. The mounting hole group passes through the cylinder along the axial direction of the movement. A limiting surface is provided in a ring between any two adjacent mounting holes. Each mounting hole is connected to an air inlet, an air outlet, and a slide groove that are spaced apart along the circumference of the movement. The air inlet and the air outlet are connected between the mounting hole and the outside of the movement. The slide groove is located between the air inlet and the air outlet. A crankshaft and multiple pistons are provided. The pistons are sleeved on the outside of the crankshaft. The multiple pistons are arranged sequentially along the axial direction of the crankshaft and correspond one-to-one with multiple mounting holes. A partition is provided between any two adjacent pistons. The crankshaft is inserted into the cylinder. Each piston extends into the corresponding mounting hole. The piston is in a stop-fitting engagement with the inner peripheral wall of the mounting hole. Each partition is in a stop-fitting engagement with the corresponding limiting surface to separate two adjacent mounting holes. A flange, along the axial direction of the movement, is fitted over the end of the cylinder and connected to the cylinder, and the crankshaft passes through the flange; A sliding plate assembly, wherein the sliding plate assembly is elastically and telescopically disposed within the sliding groove and a portion of its structure extends out of the sliding groove to engage with the piston.

2. The rotor-type compressor core according to claim 1, characterized by The two adjacent mounting holes have different diameters, and the stepped surface formed between the two mounting holes is the limiting surface. The outer diameter of the partition plate matches the larger of the two mounting holes.

3. The rotor-type compressor core according to claim 1, characterized by A limiting groove is provided between two adjacent mounting holes. The limiting groove is connected to both adjacent mounting holes. The radial dimension of the limiting groove is smaller than the diameter of one of the two adjacent mounting holes and larger than the diameter of the other. The partition is embedded in the limiting groove to limit and cooperate with the limiting groove. The bottom of the limiting groove is constructed as the limiting surface.

4. The rotor-type compressor core according to claim 2, characterized by Along the insertion direction of the crankshaft within the cylinder, the diameter of any two adjacent mounting holes gradually decreases.

5. The rotor-type compressor core according to claim 2, characterized by Along the axial direction of the movement, among two adjacent mounting holes, the diameter of the mounting hole closer to the outer side of the movement is larger than the diameter of the mounting hole closer to the inner side of the movement.

6. The rotor-type compressor core according to claim 4 or 5, characterized by A compression chamber for compressing the medium is formed within the mounting hole, and any two compression chambers have the same volume.

7. The rotor-type compressor core according to claim 6, characterized by In the direction from one end of the axial end wall of the mechanism to the other end of the axial end wall, the height dimension of the nth compression chamber is Hn, and the outer diameter dimension of the nth piston is Dn. Hn and Dn satisfy the relationship: H1*D1=H2*D2=…=Hn*Dn.

8. The rotor-type compressor core according to claim 1, characterized by The crankshaft has a positioning groove on its outer peripheral wall, and the positioning groove extends radially along the crankshaft. The partition includes multiple sub-partitions, each of which extends into the positioning groove to abut against the inner wall of the positioning groove. Along the circumference of the movement, the multiple sub-partitions are connected end to end in sequence.

9. The rotor-type compressor core according to claim 1, characterized by The air intake port and / or the exhaust port are located in the cylinder and extend radially along the movement, and / or, The air inlet and / or the exhaust outlet are located on the flange and extend along the axial direction of the movement.

10. A rotary compressor, characterized in that, Includes the core of a rotary compressor according to any one of claims 1-9.

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