Cylinder body of swash plate type variable displacement compressor

Abstract

The utility model discloses a swash plate type variable displacement compressor cylinder which comprises a cylinder body, an air suction channel is further arranged on the end face of the cylinder body in a penetrating mode, a plurality of through channels are formed in the end face of the cylinder body, and a through hole and an air suction inner cavity are further formed in the cylinder body. And the through channel is communicated with the air suction inner cavity through the through hole, so that low-temperature air in the through channel can enter the air suction inner cavity through the through hole. The compressor is simple in structure, the air suction inner cavity is formed, low-temperature air enters the air suction inner cavity of the cylinder body through the air suction channel, the temperature of the surface of the shell can be remarkably reduced when the compressor works, the problem that the viscosity of refrigerant oil is reduced due to temperature rise is solved by reducing the temperature of the shell, and therefore the lubricating effect is guaranteed, abrasion is reduced, and the service life of the compressor is prolonged. And the maintenance period and the service life of the compressor are prolonged.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, specifically a rotary swashplate variable displacement compressor cylinder. Background Technology

[0002] As a core component of refrigeration and industrial gas circulation systems, the compressor achieves energy conversion and transfer by compressing gas. During its operation, the high-speed movement of key internal components (such as pistons, valves, piston rings, and cylinders) inevitably generates mechanical friction, leading to localized temperature increases. For example, the reciprocating motion of the piston against the cylinder wall, the relative rotation of the rotor against the housing, and the frequent collisions during valve opening and closing all generate a large amount of frictional heat. If this heat cannot be effectively dissipated, the cylinder temperature will continue to accumulate, and high temperatures will reduce the viscosity of the lubricating oil or cause oil deterioration, weakening the lubrication effect and further exacerbating friction and energy consumption. Existing cooling methods (such as air cooling and water cooling) rely on external heat dissipation systems, requiring regular cleaning of the radiator or replacement of the cooling medium. Furthermore, their heat dissipation efficiency is insufficient under high loads or harsh environments (such as high temperature and high dust). Therefore, a rotary swashplate variable displacement compressor cylinder is proposed. Utility Model Content

[0003] The purpose of this invention is to provide a rotary swashplate variable displacement compressor cylinder block to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a rotary swashplate variable displacement compressor cylinder, comprising a cylinder body, wherein an intake channel is provided through the end face of the cylinder body, and multiple through channels are provided on the end face of the cylinder body. A through hole and an intake cavity are also provided on the cylinder body, and the through channel is connected to the intake cavity through the through hole so that the low temperature gas located in the through channel can enter the intake cavity through the through hole.

[0005] As a further embodiment of this utility model, the air intake cavity is annular, and the inner wall of the air intake cavity is provided with multiple reinforcing beams.

[0006] As a further embodiment of this utility model: the reinforcing beam is located in the air intake cavity near the through hole.

[0007] As a further embodiment of this utility model: multiple reinforcing beams are distributed in a toothed manner on the inner wall of the air intake cavity, and the spacing between any two adjacent reinforcing beams is equal.

[0008] As a further embodiment of this utility model: the through channel includes a cylinder hole and a bolt hole, the cylinder hole and the bolt hole are connected, and the through hole is located between the bolt hole and the intake cavity.

[0009] As a further embodiment of this utility model: the wall thickness of the side wall of the intake cavity and the side wall of the cylinder body is 3mm, and the wall thickness of the bottom wall of the intake cavity and the end face of the cylinder body is 5mm.

[0010] As a further aspect of this utility model, the diameter of the air intake channel opening is 3mm.

[0011] As a further embodiment of this utility model: an output shaft hole is provided through the middle area of ​​the cylinder body.

[0012] As a further embodiment of this utility model: a front cover and a rear cover are respectively installed on the two end faces of the cylinder body.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This application, by setting up an intake cavity, allows low-temperature gas to enter the intake cavity of the cylinder through the intake channel, which can significantly reduce the temperature of the compressor casing surface during operation. By reducing the casing temperature, the problem of the viscosity of the refrigeration oil decreasing due to temperature rise is avoided, thereby ensuring the lubrication effect, reducing wear, and extending the maintenance cycle and service life of the compressor. Furthermore, the reinforcing beams in the intake cavity increase the overall strength of the cylinder, effectively reducing the risk of deformation of internal components due to high casing temperature. This not only prevents components from failing due to overheating but also improves the stability and reliability of compressor operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the compressor cylinder of this utility model;

[0016] Figure 2 This is a schematic diagram of the cylinder body of this utility model;

[0017] Figure 3 This is a schematic diagram of the air intake cavity of this utility model;

[0018] Figure 4 This is a cross-sectional schematic diagram of the cylinder body of this utility model;

[0019] Figure 5 This is a schematic diagram of the low-temperature gas flow direction according to this utility model;

[0020] In the diagram: 1. Cylinder body; 2. Intake chamber; 3. Intake passage; 4. Through hole; 5. Reinforcing beam; 6. Cylinder bore; 7. Bolt hole; 8. Output shaft hole; 9. Front cover; 10. Rear cover. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5 In this embodiment of the present invention, a rotary swashplate variable displacement compressor cylinder includes a cylinder body 1. A front cover 9 and a rear cover 10 are respectively installed on the two end faces of the cylinder body 1. Multiple through channels are formed on the end faces of the cylinder body 1. The number of through channels is not limited. In this embodiment, preferably, the number of through channels is five. An intake channel 3 is also formed on the end face of the cylinder body 1. The diameter of the opening of the intake channel 3 is 3mm. There is one intake channel 3, located in the area between two through channels. One end of the air passage 3 is connected to the cavity of the through passage, allowing low-temperature gas to enter the through passage through the air passage 3. An air intake cavity 2 is provided on the end face of the cylinder body 1. The air intake cavity 2 is annular and has an opening on one side and a closed structure on the other. The outer wall of the air intake cavity 2 has a wall thickness of 3mm compared to the outer side of the cylinder body 1. The bottom wall of the air intake cavity 2 near the front cover 9 has a wall thickness of 5mm compared to the end face of the cylinder body 1 near the front cover 9. This design allows the low-temperature gas to be more evenly distributed within the cylinder body 1, effectively reducing pressure. The compressor casing surface temperature during operation is controlled to reduce the impact of high casing temperature on the viscosity of the refrigerant oil, prevent deformation and damage to internal components due to high casing temperature, and improve compressor life. Multiple reinforcing beams 5 are provided on the inner wall of the suction cavity 2. These reinforcing beams 5 are located near the through hole 4 in the suction cavity 2. The number of reinforcing beams 5 is not limited; in this embodiment, there are twelve reinforcing beams 5, which are distributed in a toothed pattern on the inner wall of the suction cavity 2, with equal spacing between any two adjacent beams. This design not only strengthens the cylinder body... The overall strength is also effectively prevented from leakage problems caused by cylinder deformation. A through hole 4 is provided between the intake cavity 2 and the through channel so that the low temperature gas located in the through channel can enter the intake cavity 2 through the through hole 4. In use, the external low temperature gas can enter the through channel of the cylinder body 1 through the intake channel 3 (how the external low temperature gas enters the through channel through the intake channel 3 is the existing technology and will not be described in detail here). Then the low temperature gas located in the through channel can enter the intake cavity 2 of the cylinder body 1 through the through hole 4.

[0023] Please see Figure 2In one embodiment, preferably, the through channel includes a cylinder bore 6 and a bolt hole 7, which are connected. The cylinder bore 6 is used to install the piston, while the bolt hole 7 is designed to facilitate the passage of bolts. The two are arranged alternately in structure. In addition, a through hole 4 is provided between the bolt hole 7 and the intake cavity 2. In particular, an output shaft hole 8 is provided in the middle region of the cylinder body 1. This hole runs through the entire cylinder body 1 to ensure that the end of the output shaft can pass through smoothly.

[0024] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0025] Therefore, the above description is only a preferred embodiment of this application and is not intended to limit the scope of this application; that is, all equivalent modifications made in accordance with the scope of the claims of this application shall be within the protection scope of the claims of this application.

Claims

1. A rotary swashplate variable displacement compressor cylinder block, comprising a cylinder body (1), wherein an intake channel (3) is provided through the end face of the cylinder body (1), and multiple through channels are provided on the end face of the cylinder body (1), characterized in that, The cylinder body (1) is also provided with a through hole (4) and an intake cavity (2). The through hole (4) is connected to the intake cavity (2) so that the low temperature gas in the through hole (4) can enter the intake cavity (2) through the through hole (4).

2. The cylinder block of the rotary swashplate variable displacement compressor according to claim 1, characterized in that, The air intake cavity (2) is annular, and the inner wall of the air intake cavity (2) is provided with multiple reinforcing beams (5).

3. The cylinder block of the rotary swashplate variable displacement compressor according to claim 2, characterized in that, The reinforcing beam (5) is located in the air intake cavity (2) near the through hole (4).

4. The cylinder block of the rotary swashplate variable displacement compressor according to claim 3, characterized in that, Multiple reinforcing beams (5) are toothedly distributed on the inner wall of the air intake cavity (2), and the spacing between any two adjacent reinforcing beams (5) is equal.

5. The cylinder block of the rotary swashplate variable displacement compressor according to claim 1, characterized in that, The through channel includes a cylinder hole (6) and a bolt hole (7), the cylinder hole (6) and the bolt hole (7) are connected, and the through hole (4) is located between the bolt hole (7) and the intake cavity (2).

6. The cylinder block of the rotary swashplate variable displacement compressor according to claim 1, characterized in that, The wall thickness of the side wall of the intake cavity (2) and the side wall of the cylinder body (1) is 3mm, and the wall thickness of the bottom wall of the intake cavity (2) and the end face of the cylinder body (1) is 5mm.

7. The cylinder block of the rotary swashplate variable displacement compressor according to claim 1, characterized in that, The diameter of the opening of the air intake channel (3) is 3 mm.

8. The cylinder block of the rotary swashplate variable displacement compressor according to claim 1, characterized in that, The cylinder body (1) has an output shaft hole (8) that runs through the middle area.

9. The cylinder block of the rotary swashplate variable displacement compressor according to claim 1, characterized in that, The cylinder body (1) is equipped with a front cover (9) and a rear cover (10) on its two end faces respectively.

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