A separated suction pressing plate for CO2 automobile air conditioner compressor

Abstract

The utility model discloses a kind of CO2 automobile air conditioner compressor separation type suction pressure plate, including main pressure plate, the side of main pressure plate is equipped with inner suction pipe, the inner suction pipe is used to connect external compressor cylinder suction hole, the upper and lower surfaces of main pressure plate are all set with through hole.This CO2 automobile air conditioner compressor separation type suction pressure plate, by the setting of main pressure plate, vice pressure plate and dismounting mechanism, when welding outer suction pipe on vice pressure plate, the heat and stress generated are completely isolated, completely do not affect the inner suction pipe that has been precisely installed on main pressure plate, to ensure the sealing of each suction pipe installation surface and the connection reliability from root source;When compressor needs maintenance, just loosen positioning nut, main pressure plate and vice pressure plate can be separated, realize the individual dismounting and replacement of damaged parts, avoid the damage and scrapping of integral parts, greatly improve maintenance efficiency and reduce life cycle cost.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive air conditioning compressor components, specifically to a separate suction pressure plate for a CO2 automotive air conditioning compressor. Background Technology

[0002] In existing technologies, compressor suction plates are typically single, integral structures that require the simultaneous mounting of an internal suction pipe connecting to the cylinder and an external suction pipe connecting to external pipelines. The external suction pipe usually needs to be welded to the suction plate.

[0003] However, the high temperatures generated during welding can easily cause thermal deformation of the pressure plate itself or other precision-installed internal suction pipes. This deformation can damage the sealing surface between the suction pipe and the cylinder's suction port, leading to refrigerant leakage and gas crosstalk during compressor operation, severely affecting its efficiency and reliability. Furthermore, if a suction pipe is damaged, the entire pressure plate assembly often needs to be replaced, resulting in high maintenance costs and inconvenience. Utility Model Content

[0004] The technical problem this utility model aims to solve is as follows: It provides a highly practical, simple-to-operate, and structurally simple CO2 automotive air conditioning compressor separate suction plate, addressing the issue raised in the background art where the high temperature generated during welding easily causes thermal deformation of the pressure plate itself or other precisely installed internal suction pipes. This deformation damages the sealing surface between the suction pipe and the cylinder's suction port, leading to refrigerant leakage and gas crosstalk during compressor operation, severely affecting its efficiency and reliability. Furthermore, if a suction pipe is damaged, the entire pressure plate assembly often needs to be replaced, resulting in high maintenance costs and inconvenience.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A separate suction plate for a CO2 automotive air conditioning compressor includes a main plate, an inner suction pipe installed on one side of the main plate for connecting to the suction port of an external compressor cylinder, through holes on both the upper and lower surfaces of the main plate, and a disassembly / assembly mechanism installed inside the through holes, a secondary plate overlapping one side of the main plate, and the main plate and secondary plate connected by the two disassembly / assembly mechanisms, a welding seat on one side of the secondary plate, and an external suction pipe connected to one side of the welding seat; the disassembly / assembly mechanism includes a double-ended screw installed inside the through holes, threaded holes on both sides of the surface of the double-ended screw, a positioning nut threaded into the threaded holes, and a U-shaped connector penetrating the surface of the double-ended screw.

[0007] As a further embodiment of this utility model: a sealing element is provided between the mating surfaces of the main pressure plate and the auxiliary pressure plate, the sealing element being an O-ring rubber seal, which facilitates sealing between the mating surfaces of the main pressure plate and the auxiliary pressure plate.

[0008] As a further embodiment of this utility model: an annular placement groove is provided on one side of the auxiliary pressure plate, the annular placement groove is adapted to the size of the sealing element, and the placement groove facilitates the installation of the auxiliary pressure plate.

[0009] As a further aspect of this utility model: the main pressure plate has an integrated gas filtration structure, which is a sintered metal filter screen, which facilitates gas filtration.

[0010] As a further aspect of this utility model: several heat dissipation fins are provided around the welding base, and the heat dissipation fins are distributed in a ring on the surface of the welding base, so that the heat dissipation fins can dissipate the heat generated during the welding process.

[0011] As a further embodiment of this utility model: the main pressure plate and the auxiliary pressure plate are made of stainless steel or aluminum alloy with anodized surface treatment, and the main pressure plate is convenient for supporting the internal air intake pipe.

[0012] As a further embodiment of this utility model: the upper and lower surfaces of the auxiliary pressure plate are provided with mounting holes adapted to the double-ended screw, the double-ended screw passes through the interior of the mounting holes, and the auxiliary pressure plate facilitates the support of the external suction pipe.

[0013] The beneficial effects of this utility model are:

[0014] By using the main pressure plate, auxiliary pressure plate, and disassembly / assembly mechanism, the heat and stress generated when welding the external suction pipe on the auxiliary pressure plate are completely isolated, ensuring that the internal suction pipe, which is already precisely installed on the main pressure plate, is not affected. This guarantees the sealing and connection reliability of each suction pipe mounting surface from the source. When the compressor needs maintenance, simply loosen the positioning nut to separate the main and auxiliary pressure plates, allowing for the individual disassembly and replacement of damaged parts. This avoids damage and scrapping of the entire component, greatly improving maintenance efficiency and reducing life cycle costs. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall disassembled structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the disassembly and assembly mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram of the heat dissipation fin structure of this utility model.

[0020] In the diagram: 1. Main pressure plate; 2. Inner suction pipe; 3. Disassembly and assembly mechanism; 301. Double-ended screw; 302. Positioning nut; 303. U-shaped connector; 4. Secondary pressure plate; 5. Welding seat; 6. Outer suction pipe; 7. Sealing element; 8. Gas filtration structure; 9. Heat dissipation fins. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figure 1-4 As shown, a separate suction plate for a CO2 automotive air conditioning compressor includes a main plate 1. An inner suction pipe 2 is installed on one side of the main plate 1. The inner suction pipe 2 is used to connect to the suction port of the external compressor cylinder. Through holes are provided on both the upper and lower surfaces of the main plate 1. A disassembly and assembly mechanism 3 is installed inside the through holes. Through the arrangement of the main plate 1, the secondary plate 4, and the disassembly and assembly mechanism 3, the heat and stress generated when welding the external suction pipe 6 on the secondary plate 4 are completely isolated, and will not affect the inner suction pipe 2 that has been precisely installed on the main plate 1. This ensures the sealing and connection reliability of each suction pipe mounting surface from the source. When the compressor needs maintenance, only the positioning nut 30 needs to be loosened. 2. The main and auxiliary pressure plates 4 can be separated to allow for the individual disassembly and replacement of damaged parts, avoiding damage and scrapping of the entire component, greatly improving maintenance efficiency and reducing life cycle costs. The auxiliary pressure plate 4 overlaps one side of the main pressure plate 1. The main pressure plate 1 and the auxiliary pressure plate 4 are connected by two disassembly and assembly mechanisms 3. A welding seat 5 is provided on one side of the auxiliary pressure plate 4, and an external suction pipe 6 is connected to one side of the welding seat 5. The disassembly and assembly mechanism 3 includes a double-ended screw 301 installed inside the through hole. Threaded holes are opened on both sides of the surface of the double-ended screw 301. A positioning nut 302 is threaded inside the threaded hole. A U-shaped connector 303 passes through the surface of the double-ended screw 301.

[0023] like Figure 2 As shown, a sealing element 7 is provided between the mating surfaces of the main pressure plate 1 and the auxiliary pressure plate 4. The sealing element 7 is an O-ring rubber seal, which facilitates sealing between the mating surfaces of the main pressure plate 1 and the auxiliary pressure plate 4.

[0024] like Figure 2As shown, an annular placement groove is provided on one side of the sub-pressure plate 4. The annular placement groove is adapted to the size of the sealing element 7, and the placement groove facilitates the installation of the sub-pressure plate 4.

[0025] like Figure 2 As shown, the main pressure plate 1 has an integrated gas filter structure 8 inside. The gas filter structure 8 is a sintered metal filter screen, which facilitates the filtration of gas.

[0026] like Figure 4 As shown, several heat dissipation fins 9 are provided around the welding base 5. The heat dissipation fins 9 are distributed in a ring on the surface of the welding base 5. The heat dissipation fins 9 facilitate the dissipation of heat generated during the welding process of the welding base 5.

[0027] like Figure 1 As shown, the main pressure plate 1 and the auxiliary pressure plate 4 are made of stainless steel or aluminum alloy with an anodized surface. The main pressure plate 1 is convenient for supporting the inner suction pipe 2.

[0028] like Figure 3 As shown, the upper and lower surfaces of the auxiliary pressure plate 4 are provided with mounting holes that are compatible with the double-ended screw 301. The double-ended screw 301 passes through the interior of the mounting hole, and the auxiliary pressure plate 4 can easily support the external suction pipe 6.

[0029] The working principle of this utility model is as follows: When the external suction pipe 6 is welded on the auxiliary pressure plate 4, the heat and stress generated are completely isolated and will not affect the internal suction pipe 2 that has been precisely installed on the main pressure plate 1. When the compressor needs maintenance, the main and auxiliary pressure plates 4 can be separated by simply loosening the positioning nut 302, so that the damaged parts can be disassembled and replaced individually.

[0030] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A separate suction pressure plate for a CO2 automotive air conditioning compressor, comprising a main pressure plate (1), characterized in that: An internal suction pipe (2) is installed on one side of the main pressure plate (1). The internal suction pipe (2) is used to connect to the suction port of the external compressor cylinder. Through holes are provided on both the upper and lower surfaces of the main pressure plate (1). A disassembly and assembly mechanism (3) is installed inside the through holes. A secondary pressure plate (4) overlaps on one side of the main pressure plate (1). The main pressure plate (1) and the secondary pressure plate (4) are connected by two disassembly and assembly mechanisms (3). A welding seat (5) is provided on one side of the secondary pressure plate (4). An external suction pipe (6) is connected to one side of the welding seat (5). The disassembly and assembly mechanism (3) includes a double-ended screw (301) installed inside the through hole. Threaded holes are provided on both sides of the surface of the double-ended screw (301). A positioning nut (302) is threaded inside the threaded hole. A U-shaped connector (303) passes through the surface of the double-ended screw (301).

2. The CO2 automotive air conditioning compressor separate suction pressure plate according to claim 1, characterized in that, A sealing element (7) is provided between the mating surfaces of the main pressure plate (1) and the auxiliary pressure plate (4), and the sealing element (7) is an O-ring rubber seal.

3. The CO2 automotive air conditioning compressor separate suction pressure plate according to claim 2, characterized in that, The auxiliary pressure plate (4) has an annular placement groove on one side, and the annular placement groove is adapted to the size of the sealing element (7).

4. The CO2 automotive air conditioning compressor with a separate suction pressure plate according to claim 1, characterized in that, The main pressure plate (1) has an integrated gas filter structure (8), which is a sintered metal filter screen.

5. A separate suction pressure plate for a CO2 automotive air conditioning compressor according to claim 1, characterized in that, The welding base (5) is surrounded by several heat dissipation fins (9), which are arranged in a ring on the surface of the welding base (5).

6. The CO2 automotive air conditioning compressor separate suction pressure plate according to claim 1, characterized in that, The main pressure plate (1) and the secondary pressure plate (4) are made of stainless steel or aluminum alloy with anodized surface treatment.

7. A separate suction pressure plate for a CO2 automotive air conditioning compressor according to claim 1, characterized in that, The upper and lower surfaces of the sub-pressure plate (4) are provided with mounting holes that are compatible with the double-ended screw (301), and the double-ended screw (301) passes through the interior of the mounting holes.

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