Compressor split air cylinder, compressor and air conditioner

Abstract

The invention 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 is more easily installed in an air conditioner pipeline, and materials are saved.

Description

Technical Field

[0001] The invention belongs to the technical field of compressors and relates to a compressor split cylinder, 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, it is often necessary to add a fan-shaped surface outside the cylinder sealing surface. Not only does it require more materials to process the cylinder, but it 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 equipment and a production process, which belongs to the technical field of compressors. The cylinder includes: a main body; an extension part connected to the main body, and a weld is provided between the extension part and the main body. The main body and the extension part are connected by welding, so that both the main body and the extension part can be made of steel. Compared with casting products, the strength of the material of the cylinder formed by steel welding is improved, and the strength and rigidity of the cylinder are correspondingly improved. 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 its high strength under the action of gas torque and screw torque, 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 part is still in the compressor housing, the technical problems of large inner diameter and large volume of the housing cannot be solved.

[0004] Chinese patent application CN116123090A discloses a compressor, which includes a housing, the housing has an avoidance structure; a cylinder, the cylinder is arranged inside the housing, the cylinder has a blade groove and a spring hole; a blade, at least a part of the blade is accommodated inside the blade groove, and the blade is slidably connected to the blade groove; a blade spring, at least a part of the blade spring is accommodated inside the spring hole, the end of the blade spring away from the housing abuts against the blade, the blade spring provides a driving force for the blade to move toward the inside of the cylinder, and the end of the blade spring close to the housing and / or the end of the blade close to the housing can enter the avoidance structure. The compressor provided by this patent application can solve the problems of increased friction power consumption and poor reliability of the compressor in the prior art after miniaturization. Although the end of the blade spring close to the housing can enter the avoidance structure to reduce the shell diameter, most of the blades are still inside the shell, and it is not convenient to install the pump body. Summary of the invention

[0005] The purpose of the present invention 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 housing.

[0006] The purpose of the present invention can be achieved by 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 the outer edge, and 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. The blades abut against the eccentric rotor in the inner cavity.

[0009] The cylinder sleeve is sleeved outside the protruding part 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 is retracted, 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 abutting 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 in the shape of an annulus; and the protrusion is in the shape of a cylinder.

[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, 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 disposed 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, so that under the condition of using the same cylinder diameter cylinder, the split cylinder scheme 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 present invention allows the blade spring and the blade 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 schematic diagram of the cylinder body;

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

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

[0028] Figure 5 It is a comparison diagram of the split cylinder of the compressor in the embodiment and the prior art under the same cylinder diameter;

[0029] Description of the markings in the figure:

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

[0031] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. 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, further definition and explanation thereof is not required in subsequent drawings.

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

[0034] Embodiment 1:

[0035] This embodiment provides a split cylinder and a compressor, wherein the split cylinder includes a cylinder body 1 and a cylinder sleeve 2, and the compressor includes the split cylinder and a housing 3. The outer edge of the cylinder body 1 is provided with a protrusion 101, and a blade groove 102 is provided through the protrusion 101, the blade groove 102 communicates with the inner cavity of the cylinder body 1 and is provided with a blade 103, and the blade 103 abuts against the eccentric rotor 104 in the inner cavity; the cylinder sleeve 2 is sleeved outside the protrusion 101, and a blade spring 201 is provided inside, and the blade spring 201 abuts against the blade 103; the housing 3 is provided with a mounting hole 301, the cylinder body 1 is arranged in the housing 3, and the cylinder sleeve 2 is fixedly penetrated in the mounting hole 301.

[0036] When in use, the two sides of the blade 103 slide 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, so that the outer end of the blade 103 can slide into the cavity; and because the cylinder sleeve 2 is fixedly penetrated into 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 scheme of this embodiment effectively shortens the length of the blade 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 103 is provided at the outer end of the protrusion 101, and one end of the leaf spring 201 abutting against the leaf 103 is disposed in the leaf spring slot 103. The leaf spring slot 103 is used to limit the leaf spring 201 to prevent the leaf spring 201 from tilting outward and falling out when it is extended or retracted.

[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 outside 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 two opposite sides of the side wall are cut off to form a flat wall, which is flush with the two end surfaces of the cylinder body 1, that is, the outer diameter of the protrusion 101 is larger 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 disposed 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 intake passage is provided on the cylinder head, and the intake passage is connected to the cylinder body 1 .

[0045] Embodiment 2:

[0046] A compressor, specifically a rotor type 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 a cover plate / cylinder head disposed on both sides of the cylinder body 1. The pump body in the rotary compressor preferably selects the cover plates / cylinder heads on both sides of the cylinder for air intake. An avoidance notch is provided on the cylinder head / cover plate to avoid the position of the cylinder sleeve 2, so that the other parts of the cylinder head / cover plate can be closely matched with the cylinder.

[0048] Embodiment 3:

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

[0050] The above description of the embodiments is to facilitate the understanding and use of the invention by those skilled in the art. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the present invention is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the present invention should be within the scope of protection of the present invention.

Claims

1. A compressor split cylinder, characterized in that: include: A cylinder body (1) is provided with a protrusion (101) on the outer edge, a blade groove (102) is formed through the protrusion (101), the blade groove (102) is connected to the inner cavity of the cylinder body (1), and is provided with a blade (103), and the blade (103) is in contact with an eccentric rotor (104) in the inner cavity; The cylinder sleeve (2) is sleeved outside the protruding portion (101) and is provided with a leaf spring (201) therein, wherein the leaf spring (201) abuts against the leaf (103); a cavity is provided inside the cylinder sleeve (2), and when the leaf (103) is retracted, 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 protruding portion (101) is provided with a leaf spring groove (103), and the end of the leaf spring (201) that abuts against the leaf (103) is arranged in the leaf spring groove (103).

3. The compressor split cylinder according to claim 1, characterized in that: The outer end of the cylinder sleeve (2) is provided with a leaf spring sleeve (202); 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 an annulus; 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 the two end surfaces of the cylinder body (1).

7. A compressor, characterized in that: It comprises a compressor split cylinder and a shell (3) as described in 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 which is arranged on the end surface of the cylinder body (1) and is used to seal the cylinder body (1); an avoidance notch is arranged on the cylinder head to avoid the position of the cylinder sleeve (2).

9. The compressor according to claim 8, characterized in that An air intake passage is arranged 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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