Compressor split air cylinder, compressor and air conditioner

Abstract

The utility model relates to a compressor split air cylinder, a compressor and an air conditioner. The compressor split air cylinder comprises an air cylinder body and an air cylinder sleeve. A protruding part is arranged on the outer edge of the air cylinder body, blade grooves are formed in the protruding part, and blades are arranged in the blade grooves. The cylinder sleeve is sleeved outside the protruding part, and a leaf spring is arranged in the cylinder sleeve and abuts against the blade; a cavity is formed in the air cylinder sleeve, and when the blade retracts, the outer end of the blade can extend into the cavity in a sliding mode. Compared with the prior art, the inner cavity of the cylinder sleeve barrel is used as a receding space, so that the outer ends of the blades can extend into the cavity in a sliding mode, under the condition that cylinders with the same cylinder diameter are adopted, a cylinder spring hole section can be obviously reduced, the size of the compressor is reduced, the compressor can be installed in an air conditioner pipeline more easily, and materials are saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of compressors and relates to a split cylinder of a compressor, a compressor and an air conditioner. Background Art

[0002] In the rotor compressor pump body, blades need to be installed to separate the compression chamber from the suction chamber. The blades require blade springs to ensure that the blades fit the rotor and do not get stuck at the upper and lower dead points. However, in order to install the blades and blade springs, the cylinder often needs to add a fan-shaped surface outside the cylinder sealing surface. This not only requires more material to process the cylinder, but also increases the inner diameter of the compressor housing, resulting in an excessively large volume, making it more difficult to install in the air-conditioning pipeline.

[0003] Chinese patent application CN112833013A discloses a cylinder, a compressor, a refrigeration device and a production process, which belong to the technical field of compressors. The cylinder includes: a main body; an extension portion connected to the main body, and a weld is provided between the extension portion and the main body. The main body and the extension portion are connected by welding, so that both the main body and the extension portion can be made of steel. Compared with casting products, the strength of the material of the cylinder formed by welding steel is improved, which correspondingly improves the strength and rigidity of the cylinder. When the compressor is in operation, the poor clearance between the blades and the cylinder can be improved, and the cylinder wall is not easily deformed due to the high strength under the action of gas torque and screw torsion, which reduces the impact on the centering clearance of the pump body and is beneficial to improving the working performance of the compressor. However, since the extension portion is still inside the compressor casing, the technical problems of large inner diameter and large volume of the casing cannot be solved.

[0004] Chinese patent application CN116123090A discloses a compressor comprising a housing having an avoidance structure; a cylinder disposed inside the housing and having a blade slot and a spring hole; a blade, at least a portion of which is accommodated inside the blade slot and is slidably connected to the blade slot; and a leaf spring, at least a portion of which is accommodated inside the spring hole, the end of the leaf spring away from the housing abutting against the blade, the leaf spring providing a driving force for the blade to move toward the interior of the cylinder, and the end of the leaf spring close to the housing and / or the end of the blade close to the housing being able to enter the avoidance structure. The compressor provided by this patent application can solve the problems of increased frictional power consumption and poor reliability in the prior art compressors after miniaturization. Although the end of the leaf spring close to the housing can enter the avoidance structure, reducing the shell diameter, most of the blades are still inside the shell, making it inconvenient to install the pump body. Summary of the Invention

[0005] The purpose of the utility model is to provide a compressor split cylinder, a compressor and an air conditioner, which are used to solve the problems of large inner diameter and large volume of the compressor shell.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A first aspect of the present invention provides a compressor split cylinder, comprising:

[0008] The cylinder body has a protrusion on its outer edge, a blade groove is formed through the protrusion, the blade groove is connected to the inner cavity of the cylinder body and is provided with blades, and the blades abut against the eccentric rotor in the inner cavity;

[0009] The cylinder sleeve is sleeved outside the protruding portion and is provided with a leaf spring inside, and the leaf spring abuts against the leaf; a cavity is provided inside the cylinder sleeve, and when the leaf retracts, the outer end of the leaf can slide into the cavity.

[0010] Furthermore, a leaf spring groove is provided at the outer end of the protrusion, and one end of the leaf spring that abuts against the leaf is provided in the leaf spring groove.

[0011] Furthermore, a leaf spring sleeve is provided at the outer end of the cylinder sleeve, one end of the leaf spring abuts against the leaf, and the other end abuts against the inside of the leaf spring sleeve.

[0012] Furthermore, the inner diameter of the leaf spring sleeve is smaller than the inner diameter of the cavity in the cylinder sleeve.

[0013] Furthermore, the cylinder body is annular; and the protrusion is cylindrical.

[0014] Furthermore, the protrusion forms flat walls on both sides facing the cylinder end surface, and the flat walls are flush with both end surfaces of the cylinder body.

[0015] Furthermore, the cylinder sleeve is threadedly connected or interference-fitted with the protrusion.

[0016] Furthermore, the cylinder sleeve is welded or interference-fitted with the mounting hole.

[0017] A second aspect of the present invention provides a compressor, comprising the compressor split cylinder and shell as described above, wherein the shell is provided with a mounting hole, the cylinder body is arranged in the shell, and the cylinder sleeve is fixedly inserted into the mounting hole.

[0018] Furthermore, the compressor also includes a cylinder head provided on the end surface of the cylinder body and used for sealing the cylinder body, and an avoidance notch is provided on the cylinder head for avoiding the position of the cylinder sleeve.

[0019] Furthermore, an air intake passage is provided on the cylinder head, and the air intake passage is connected to the cylinder body.

[0020] A third aspect of the present invention provides an air conditioner, comprising the compressor as described above.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1) The present invention sleeves a cylinder sleeve on the outer end of the blade groove and uses the inner cavity of the cylinder sleeve as a clearance space, so that the outer end of the blade can slide into the cavity; and because the cylinder sleeve is fixedly inserted into the mounting hole on the shell, the shell size is not limited by the designed retraction distance of the blade. Under the condition of using the same cylinder diameter, the split cylinder solution of the present invention effectively shortens the length of the blade spring in the inner section of the shell, significantly reduces the cylinder spring hole section, reduces the inner diameter of the shell, greatly reduces the size of the compressor, is easier to install in the air-conditioning pipeline, and saves materials.

[0023] 2) The utility model allows the leaf spring and the leaf to enter the sleeve, further reducing the shell diameter, and separates the sleeve from the shell, which not only facilitates the installation of the pump body, but also effectively reduces the difficulty of shell processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a cross-sectional view of a split cylinder of a compressor in an embodiment;

[0025] Figure 2 It is a structural diagram of the cylinder body;

[0026] Figure 3 It is a structural diagram of the cylinder sleeve;

[0027] Figure 4 is a structural schematic diagram of the shell;

[0028] Figure 5 A comparison diagram of the split cylinder of the compressor in the embodiment and the prior art with the same cylinder diameter;

[0029] Description of the marks in the figure:

[0030] 1-cylinder body, 101-protrusion, 102-vane groove, 103-vane, 104-eccentric rotor, 105-vane spring groove, 2-cylinder sleeve, 201-vane spring, 202-vane spring sleeve, 3-housing, 301-mounting hole. DETAILED DESCRIPTION

[0031] The following embodiments are implemented based on the above technical solution of the present invention, and provide detailed implementation methods and specific operation processes, but the protection scope of the present invention is not limited to the following embodiments.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not require further definition or explanation in subsequent drawings.

[0033] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0034] Example 1

[0035] This embodiment provides a split cylinder and a compressor. The split cylinder includes a cylinder body 1 and a cylinder sleeve 2. The compressor includes the split cylinder and a housing 3. The cylinder body 1 has a protrusion 101 on its outer edge. A vane slot 102 is formed through the protrusion 101. The vane slot 102 communicates with the inner cavity of the cylinder body 1 and is provided with vanes 103. The vanes 103 abut against an eccentric rotor 104 in the inner cavity. The cylinder sleeve 2 is sleeved over the protrusion 101 and is provided with a vane spring 201 therein. The vane spring 201 abuts against the vanes 103. The housing 3 has a mounting hole 301. The cylinder body 1 is disposed within the housing 3. The cylinder sleeve 2 is fixedly inserted into the mounting hole 301.

[0036] When in use, the blade 103 slides back and forth in the blade slot 102 under the action of the blade spring 201 and the eccentric rotor 104. When the blade 103 retracts, the cavity in the cylinder sleeve 2 can be used as a clearance space, allowing the outer end of the blade 103 to slide into the cavity; and because the cylinder sleeve 2 is fixedly installed in the mounting hole 301 on the housing 3, the size of the housing 3 is not limited by the designed retraction distance of the blade 103. Figure 5 As shown, it can be seen that under the condition of using the cylinder body 1 with the same cylinder diameter, the split cylinder solution of this embodiment effectively shortens the length of the leaf spring 201 in the inner section of the shell, so that the cylinder spring hole section is significantly reduced, the inner diameter of the shell is reduced, the volume of the compressor is greatly reduced, it is easier to install in the air-conditioning pipeline, and saves materials.

[0037] In some specific embodiments, a leaf spring slot 105 is provided at the outer end of the protrusion 101, and the end of the leaf spring 201 that contacts the leaf 103 is disposed in the leaf spring slot 105. The leaf spring slot 105 serves to limit the leaf spring 201 and prevent it from tilting outward and falling out during expansion and contraction.

[0038] In some specific embodiments, a leaf spring sleeve 202 is provided at the outer end of the cylinder sleeve 2. The leaf spring sleeve 202 protrudes from the outside of the cylinder sleeve 2 and is connected to the cavity of the cylinder sleeve 2. The inner diameter of the leaf spring sleeve 202 is smaller than the inner diameter of the cavity inside the cylinder sleeve 2, so that a stepped cavity is formed inside the cylinder sleeve 2. One end of the leaf spring 201 abuts against the blade 103, and the other end abuts against the inside of the leaf spring sleeve 202.

[0039] In some specific embodiments, the cylinder body 1 is annular; the protrusion 101 is cylindrical, and the opposite sides of the side wall are cut off to form flat walls, which are flush with the two end surfaces of the cylinder body 1, that is, the outer diameter of the protrusion 101 is greater than the cylinder height of the cylinder body 1.

[0040] In some specific embodiments, the cylinder sleeve 2 is threadedly connected or interference-fitted with the protrusion 101 .

[0041] In some specific embodiments, the cylinder sleeve 2 is adapted to the shape of the mounting hole 301 and is fixed by welding or interference fit.

[0042] In some specific embodiments, the compressor further includes a cylinder head provided on an end surface of the cylinder body 1 and used for sealing the cylinder body 1 .

[0043] In some specific embodiments, an avoidance notch is provided on the cylinder head to avoid the position of the cylinder sleeve 2 .

[0044] In some specific embodiments, an air intake passage is provided on the cylinder head, and the air intake passage is connected to the cylinder body 1 .

[0045] Example 2

[0046] A compressor, specifically a rotary compressor, includes the compressor split cylinder in Example 1, wherein the maximum outer diameter of the cylinder body 1 is not greater than the inner diameter of the shell 3.

[0047] The compressor also includes cover plates / cylinder heads mounted on either side of the cylinder body 1. The pump body in a rotary compressor preferably uses these cover plates / cylinder heads on either side of the cylinder for air intake. A clearance notch is provided on the cylinder head / cover plate to allow clearance for the location of the cylinder sleeve 2, allowing the rest of the cylinder head / cover plate to fit tightly with the cylinder.

[0048] Example 3

[0049] An air conditioner, specifically for automobile air conditioning, comprises the compressor of Example 2.

[0050] The above description of the embodiments is intended to facilitate understanding and use of the utility model by those skilled in the art. Those skilled in the art will readily be able to make various modifications to these embodiments and apply the general principles described herein to other embodiments without requiring inventive effort. Therefore, the utility model is not limited to the above-described embodiments. Improvements and modifications made by those skilled in the art based on the disclosure of this utility model without departing from the scope of this utility model should be within the scope of protection of this utility model.

Claims

1. A split cylinder of a compressor, characterized in that: include: The cylinder body (1) has a protrusion (101) on its outer edge, a blade groove (102) extending through the protrusion (101), the blade groove (102) communicating with the inner cavity of the cylinder body (1) and provided with blades (103), the blades (103) abutting against the eccentric rotor (104) in the inner cavity; The cylinder sleeve (2) is sleeved outside the protruding portion (101) and has a leaf spring (201) therein, wherein the leaf spring (201) abuts against the leaf (103); a cavity is provided in the cylinder sleeve (2), and when the leaf (103) retracts, the outer end of the leaf (103) can slide into the cavity.

2. The compressor split cylinder according to claim 1, characterized in that: The outer end of the protrusion (101) is provided with a leaf spring slot (105), and the end of the leaf spring (201) that abuts against the leaf (103) is arranged in the leaf spring slot (105).

3. The compressor split cylinder according to claim 1, characterized in that: A leaf spring sleeve (202) is provided at the outer end of the cylinder sleeve (2); one end of the leaf spring (201) abuts against the leaf (103), and the other end abuts against the inside of the leaf spring sleeve (202).

4. The compressor split cylinder according to claim 3, characterized in that: The inner diameter of the leaf spring sleeve (202) is smaller than the inner diameter of the cavity in the cylinder sleeve (2).

5. The compressor split cylinder according to claim 1, characterized in that: The cylinder body (1) is in the shape of a ring tube; the protrusion (101) is in the shape of a cylinder.

6. The compressor split cylinder according to claim 5, characterized in that: The protrusion (101) forms flat walls on both sides facing the cylinder end surface, and the flat walls are flush with both end surfaces of the cylinder body (1).

7. A compressor, characterized in that: The invention comprises a compressor split cylinder and a shell (3) according to any one of claims 1 to 6, wherein the shell (3) is provided with a mounting hole (301), the cylinder body (1) is arranged in the shell (3), and the cylinder sleeve (2) is fixedly inserted into the mounting hole (301).

8. The compressor according to claim 7, characterized in that The compressor further comprises a cylinder head provided on the end surface of the cylinder body (1) and used for sealing the cylinder body (1); a relief notch is provided on the cylinder head for avoiding the position of the cylinder sleeve (2).

9. The compressor according to claim 8, characterized in that An air intake passage is provided on the cylinder head, and the air intake passage is connected to the cylinder body (1).

10. An air conditioner, characterized in that: Comprising the compressor of claim 7.

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