Compressor shell

Abstract

The compressor shell comprises a cylinder body and a rear cover, the cylinder body and the rear cover are integrally formed and cast, a first gasket, a valve plate assembly, a second gasket and a cylinder core are sequentially arranged in the cylinder body, and at least one protruding strip is arranged on the inner wall of the cylinder body in the axial length direction of the cylinder body. And the limiting part is configured to limit axial rotation of the first gasket, the valve plate assembly, the second gasket and the cylinder core. The compressor shell is simple in structure, the cylinder body and the rear cover are integrally formed and die-cast, the problems of leakage caused by assembly and leakage caused by bolt looseness caused by vibration in later use are solved, the strength of the compressor shell can be improved, the shell is light, the die-casting cost can be reduced, meanwhile, the protruding strips are arranged in the cylinder body, and the service life of the compressor shell is prolonged. And grooves matched with the bosses are designed in the first gasket, the valve plate assembly, the second gasket and the cylinder core, so that the assembly efficiency can be improved, and the problem that the positioning pin falls into the cylinder body during assembly to cause early failure of the ejection cylinder is solved.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, specifically a compressor housing. Background Technology

[0002] Traditional compressors mainly consist of four major components: the rear cover assembly, the cylinder block assembly, the front cover assembly, and the pulley assembly. However, the rear cover assembly connects to the cylinder block via three threaded connections. This traditional structure has significant assembly drawbacks: the cylinder block and cylinder head are typically machined as separate die-cast parts before assembly, requiring two separate die-casting processes, increasing production costs and causing precision loss due to multiple machining operations. Furthermore, vibrations generated during compressor operation can lead to leaks at bolted connections, affecting compressor efficiency and lifespan. Additionally, the use of locating pins for assembly makes it easy for components to fall into the cylinder during manual assembly, causing problems such as cylinder damage or missing parts, increasing assembly risks. Therefore, a new compressor housing design is proposed. Utility Model Content

[0003] The purpose of this invention is to provide a compressor housing to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a compressor housing, including a cylinder and a rear cover, wherein the cylinder and the rear cover are integrally formed by die casting, and the interior of the cylinder is sequentially provided with a first gasket, a valve plate assembly, a second gasket and a cylinder core, and the inner wall of the cylinder is provided with at least one protrusion along its axial length direction, which is configured to restrict the axial rotation of the first gasket, the valve plate assembly, the second gasket and the cylinder core.

[0005] As a further embodiment of this utility model: the outer wall of the first gasket is provided with a first groove, and when the first gasket is installed inside the cylinder, the position of the first groove matches the position of the protrusion.

[0006] As a further embodiment of this utility model: the outer wall of the valve plate assembly is provided with a second groove, and when the valve plate assembly is installed inside the cylinder, the position of the second groove matches the position of the protrusion.

[0007] As a further embodiment of this utility model: the outer wall of the second gasket is provided with a third groove, and when the second gasket is installed inside the cylinder, the position of the third groove matches the position of the protrusion.

[0008] As a further embodiment of this utility model: the outer wall of the cylinder core is provided with a fourth groove, and when the cylinder core is installed inside the cylinder body, the position of the fourth groove matches the position of the protrusion.

[0009] As a further embodiment of this utility model: the end faces of the first gasket, the valve plate assembly, the second gasket, and the cylinder core are all designed with multiple limiting holes.

[0010] As a further embodiment of this utility model: the end face of the cylinder core is provided with a plurality of bolts that are inserted into the limiting holes, and the ends of the bolts pass through the cylinder core, the second gasket, the valve plate assembly, the first gasket in sequence and are connected to the rear cover.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This application solves the problems of leakage caused by assembly and leakage caused by bolt loosening due to vibration during later use by integrally die-casting the cylinder body and the rear cover. It not only improves the strength of the compressor housing but also achieves the weight reduction of the housing and reduces the die-casting cost. At the same time, the protrusion is set in the cylinder body, and the grooves that match the protrusion are designed on the first gasket, valve plate assembly, second gasket and cylinder core, which can improve the assembly efficiency and avoid the problem of the locating pin falling into the cylinder body during assembly and causing premature failure of the top cylinder. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of an existing compressor housing according to the present invention;

[0014] Figure 2 This is a schematic diagram of the overall structure of the compressor housing of this utility model;

[0015] Figure 3 This is a schematic diagram of the cylinder body of this utility model;

[0016] Figure 4 This is a schematic diagram of the first gasket of this utility model;

[0017] Figure 5 This is a schematic diagram of the valve plate assembly of this utility model;

[0018] Figure 6 This is a schematic diagram of the second gasket of this utility model;

[0019] Figure 7 This is a schematic diagram of the cylinder core of this utility model;

[0020] Figure 8 This is a schematic diagram of the bolt of this utility model;

[0021] In the diagram: 1. Cylinder body; 1-1. Raised strip; 2. Rear cover; 3. First gasket; 3-1. First groove; 4. Valve plate assembly; 4-1. Second groove; 5. Second gasket; 5-1. Third groove; 6. Cylinder core; 6-1. Fourth groove; 7. Bolt. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-8 In this embodiment of the invention, a compressor housing includes a cylinder body 1 and a rear cover 2. The cylinder body 1 and the rear cover 2 are integrally die-cast. This integral die-casting not only improves the strength of the compressor housing but also reduces die-casting costs by making the housing lighter. Furthermore, the integral die-casting of the cylinder body 1 and the rear cover 2 effectively solves the problems of leakage caused by assembly and leakage due to bolt loosening caused by vibration during later use. The interior of the cylinder body 1 is sequentially provided with a first gasket 3, a valve plate assembly 4, a second gasket 5, and a cylinder core 6. The inner wall of the cylinder body 1 has at least one protrusion 1-1 along its axial length direction, configured to limit... The first gasket 3, valve plate assembly 4, second gasket 5, and cylinder core 6 are axially rotated. The number of protrusions 1-1 is not limited. In this embodiment, preferably, two protrusions 1-1 are symmetrically designed on the inner wall of the cylinder body 1. The design of two protrusions 1-1 can provide two limiting forces for the axial rotation of the first gasket 3, valve plate assembly 4, second gasket 5, and cylinder core 6, which can reduce the assembly torque requirement and effectively improve the assembly qualification rate. The force that limits the rotation of the first gasket 3, valve plate assembly 4, second gasket 5, and cylinder core 6 is not concentrated on the fixing bolts, which increases the overall stability.

[0024] Please see Figure 4 In one embodiment, preferably, the outer wall of the first gasket 3 is provided with a first groove 3-1. When the first gasket 3 is installed inside the cylinder body 1, the position of the first groove 3-1 matches that of the protrusion 1-1. The number of first grooves 3-1 is the same as the number of protrusions 1-1. In this embodiment, there are two protrusions 1-1 and they are symmetrically designed. Therefore, there are also two first grooves 3-1 and they are symmetrically designed. Before assembling the first gasket 3 into the cylinder body 1, the first groove 3-1 is aligned with the protrusion 1-1 so that the first gasket 3 can be completely sent into the interior of the cylinder body 1.

[0025] Please see Figure 5In one embodiment, preferably, the outer wall of the valve plate assembly 4 is provided with a second groove 4-1. When the valve plate assembly 4 is installed inside the cylinder body 1, the position of the second groove 4-1 matches that of the protrusion 1-1. The number of second grooves 4-1 is the same as the number of protrusions 1-1. In this embodiment, there are two protrusions 1-1 and they are symmetrically designed. Therefore, there are also two second grooves 4-1 and they are symmetrically designed. Before assembling the valve plate assembly 4 into the cylinder body 1, the second groove 4-1 is aligned with the protrusion 1-1. This allows the valve plate assembly 4 to be completely sent into the interior of the cylinder body 1 and to contact the end face of the first gasket 3 located inside the cylinder body 1, ensuring the flatness between the two and ensuring its sealing performance.

[0026] Please see Figure 6 In one embodiment, preferably, the outer wall of the second gasket 5 is provided with a third groove 5-1. When the second gasket 5 is installed inside the cylinder body 1, the third groove 5-1 matches the position of the protrusion 1-1. The number of third grooves 5-1 is the same as the number of protrusions 1-1. In this embodiment, there are two protrusions 1-1 and they are symmetrically designed. Therefore, there are also two third grooves 5-1 and they are symmetrically designed. Before assembling the second gasket 5 into the cylinder body 1, the third groove 5-1 is aligned with the protrusion 1-1. This allows the second gasket 5 to be completely sent into the interior of the cylinder body 1. At this time, the second gasket 5 sent into the cylinder body 1 is in close contact with the end face of the valve plate assembly 4 away from the first gasket 3.

[0027] Please see Figure 7 In one embodiment, preferably, the outer wall of the cylinder core 6 is provided with a fourth groove 6-1. When the cylinder core 6 is installed inside the cylinder body 1, the fourth groove 6-1 matches the position of the protrusion 1-1. The number of fourth grooves 6-1 is the same as the number of protrusions 1-1. In this embodiment, there are two protrusions 1-1 and they are symmetrically designed. Therefore, there are also two fourth grooves 6-1 and they are symmetrically designed. Before assembling the cylinder core 6 into the cylinder body 1, the fourth groove 6-1 is aligned with the protrusion 1-1. This allows the cylinder core 6 to be completely sent into the interior of the cylinder body 1. At the same time, the second gasket 5, the valve plate assembly 4, and the first gasket 3 can be squeezed together so that they are in close contact.

[0028] Please see Figure 2-8In one embodiment, preferably, the end faces of the first gasket 3, valve plate assembly 4, second gasket 5, and cylinder core 6 are all designed with multiple limiting holes. The end face of the cylinder core 6 is provided with multiple bolts 7 that are inserted into the limiting holes. The ends of the bolts 7 pass through the cylinder core 6, second gasket 5, valve plate assembly 4, and first gasket 3 in sequence and are connected to the rear cover 2. Further, the outer diameter of one end of the bolt 7 is smaller than the inner diameter of the limiting hole, which facilitates the bolt 7 to pass through the cylinder core 6, second gasket 5, valve plate assembly 4, and first gasket 3. The outer diameter of the other end of the bolt 7 is larger than the inner diameter of the limiting hole, which can abut against the cylinder core 6. Then, by rotating the bolt 7, the end of the bolt 7 squeezes the cylinder core 6, making the gap between the cylinder core 6, second gasket 5, valve plate assembly 4, and first gasket 3 smaller until they are tightly connected together.

[0029] 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.

[0030] 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 compressor housing, comprising a cylinder (1) and a rear cover (2), characterized in that, The cylinder body (1) and the rear cover (2) are integrally formed by die casting. The cylinder body (1) is provided with a first gasket (3), a valve plate assembly (4), a second gasket (5) and a cylinder core (6) in sequence. The inner wall of the cylinder body (1) is provided with at least one protrusion (1-1) along its axial length direction, which is configured to restrict the axial rotation of the first gasket (3), the valve plate assembly (4), the second gasket (5) and the cylinder core (6).

2. The compressor housing according to claim 1, characterized in that, The outer wall of the first gasket (3) is provided with a first groove (3-1). When the first gasket (3) is installed inside the cylinder body (1), the position of the first groove (3-1) matches that of the protrusion (1-1).

3. The compressor housing according to claim 1, characterized in that, The outer wall of the valve plate assembly (4) is provided with a second groove (4-1). When the valve plate assembly (4) is installed inside the cylinder body (1), the second groove (4-1) matches the position of the protrusion (1-1).

4. The compressor housing according to claim 1, characterized in that, The outer wall of the second gasket (5) is provided with a third groove (5-1). When the second gasket (5) is installed inside the cylinder body (1), the third groove (5-1) matches the position of the protrusion (1-1).

5. The compressor housing according to claim 1, characterized in that, The outer wall of the cylinder core (6) is provided with a fourth groove (6-1). When the cylinder core (6) is installed inside the cylinder body (1), the fourth groove (6-1) matches the position of the protrusion (1-1).

6. The compressor housing according to claim 1, characterized in that, The end faces of the first gasket (3), valve plate assembly (4), second gasket (5) and cylinder core (6) are all designed with multiple limiting holes.

7. The compressor housing according to claim 6, characterized in that, The cylinder core (6) has multiple bolts (7) inserted into the limiting holes on its end face. The ends of the bolts (7) pass through the cylinder core (6), the second gasket (5), the valve plate assembly (4), the first gasket (3) in sequence and are connected to the rear cover (2).

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