Dustproof air conditioner compressor end cover sheet metal part

Abstract

The dustproof air conditioner compressor end cover sheet metal part comprises a metal end cover and a metal sealing plug bush arranged at the bottom end of the metal end cover, the metal sealing plug bush can be completely inserted into an opening in the top end of a compressor shell, and the outer wall of the metal sealing plug bush is attached to the circular inner wall of the compressor shell. A novel welding position reinforcing protection device is additionally arranged outside the metal end cover and the compressor shell, and after the metal end cover is closed to the top end of the compressor shell, an end cover welding fixing flange on the metal end cover and a shell welding fixing flange on the compressor shell are attached to each other at the moment; the two flanges need to be fixed in a fusion welding mode after being attached, then the reinforcing and protecting device at the welding position can play a role in reinforcing and protecting the outer portion of the welding position of the two flanges, and therefore the situation that the welding position is cracked or loosened due to factors such as long-term use or external vibration can be effectively prevented.

Description

Technical Field

[0001] This utility model belongs to the technical field of air conditioning compressors, specifically relating to a dustproof air conditioning compressor end cover sheet metal part. Background Technology

[0002] With the continuous development of air conditioning technology, the performance and reliability of the air conditioning compressor, as a core component of the air conditioner, are of paramount importance. In the structure of the air conditioning compressor, the end cover sheet metal plays a crucial role in sealing and protecting the internal components. However, in actual use, existing air conditioning compressor end cover sheet metal parts have some problems;

[0003] On the one hand, the traditional connection between the end cover and the compressor housing may loosen or crack under long-term use or external vibrations, leading to decreased sealing performance. This allows dust and other impurities to easily enter the compressor, affecting its normal operation. This not only reduces the cooling effect of the air conditioner but may also shorten the compressor's lifespan and increase maintenance costs. On the other hand, the existing end cover sheet metal parts have relatively weak protection measures at the welded joints, making them susceptible to corrosion from the external environment, such as dust and moisture, thus reducing the strength and reliability of the welded joints. Furthermore, for some high-requirement applications, such as industrial air conditioning and precision air conditioning, higher requirements are placed on the dustproof performance and connection stability of the compressor end cover sheet metal parts.

[0004] Therefore, in order to solve the problems existing in the sheet metal end caps of air conditioner compressors and improve their dustproof performance and connection stability, it is of great practical significance to develop a new type of dustproof sheet metal end cap for air conditioner compressors. Utility Model Content

[0005] The purpose of this utility model is to provide a dustproof sheet metal end cover for an air conditioning compressor, in order to solve the problem mentioned in the background art that the traditional connection between the end cover and the compressor housing may loosen or crack under long-term use or external vibration, resulting in a decrease in sealing performance and allowing dust and other impurities to easily enter the compressor, affecting the normal operation of the compressor.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a dustproof air conditioner compressor end cover sheet metal part, including a metal end cover and a metal sealing sleeve disposed at the bottom of the metal end cover. The metal sealing sleeve can be completely inserted into the top opening of the compressor housing, and the outer wall of the metal sealing sleeve is in contact with the circular inner wall of the compressor housing. The bottom circular outer wall of the metal end cover is provided with an end cover welding fixing flange, and the top circular outer wall of the compressor housing is provided with a housing welding fixing flange. The end cover welding fixing flange and the housing welding fixing flange are fitted together and then fixedly connected by fusion welding. The metal end cover is provided with a welding reinforcement and protection device on the outside.

[0007] Preferably, the weld reinforcement and protection device includes a compression reinforcement metal ring A, an external threaded connecting ring, a compression reinforcement metal ring B, and an internal threaded connecting ring. The compression reinforcement metal ring B is sleeved on the outer circle of the metal end cap, and the compression reinforcement metal ring A is sleeved on the outer circle of the compressor housing. The bottom end of the compression reinforcement metal ring B is provided with an internal threaded connecting ring, which is flush with the outer circle wall of the compression reinforcement metal ring B. The top end of the compression reinforcement metal ring A is provided with an external threaded connecting ring, which can be threaded into the interior of the internal threaded connecting ring.

[0008] Preferably, the weld reinforcement and protection device further includes multiple rotating handles. Multiple rotating handles are welded at equal intervals to the bottom end of the compression reinforcement metal ring A and the top end of the compression reinforcement metal ring B. The rotating handles can drive the compression reinforcement metal ring A and the compression reinforcement metal ring B to rotate clockwise and counterclockwise.

[0009] Preferably, the inner diameters of both the external threaded connecting ring and the internal threaded connecting ring are larger than the outer diameters of the housing welded fixing flange and the end cover welded fixing flange.

[0010] Preferably, the height of the external threaded connecting ring is the same as the depth of the internal threaded connecting ring. After the external threaded connecting ring is fully threaded into the internal threaded connecting ring, the compression reinforcing metal ring A and the compression reinforcing metal ring B are respectively compressed onto the bottom end of the housing welded fixing flange and the top end of the end cover welded fixing flange.

[0011] Preferably, a metal exhaust pipe is provided on the left side of the center of the top of the metal end cap, the bottom end of the metal exhaust pipe completely penetrates the top of the metal end cap, and a wiring sleeve is provided on the right side of the center of the top of the metal end cap.

[0012] Preferably, the junction box has multiple connectors inside, and a rubber sealing sleeve is fitted over the outside of the junction box. The rubber sealing sleeve has an inlet / outlet hole at the center of its top.

[0013] Compared with the prior art, this utility model provides a dustproof sheet metal end cover for an air conditioner compressor, which has the following beneficial effects:

[0014] This invention adds a novel weld joint reinforcement and protection device to the outside of the metal end cover and compressor housing. When the metal end cover is closed to the top of the compressor housing, the end cover welding flange on the metal end cover and the housing welding flange on the compressor housing fit together. After fitting, the two flanges need to be fixed by fusion welding. Then, the weld joint reinforcement and protection device can reinforce and protect the weld joint of the two flanges. After the external threaded connecting ring on the device is fully threaded into the internal threaded connecting ring, the tightening reinforcement metal ring A and the tightening reinforcement metal ring B are respectively tightened on the bottom end of the housing welding flange and the top end of the end cover welding flange, making the weld joint more robust and reliable. This can effectively prevent cracks or loosening of the weld joint due to long-term use or external vibration. At the same time, the reinforcement and protection device can also play a certain sealing role, preventing dust, moisture and other impurities from entering the weld joint, thereby extending the service life of the air conditioner compressor end cover sheet metal parts and ensuring the normal operation of the air conditioner compressor. Attached Figure Description

[0015] Figure 1 This is a frontal three-dimensional structural diagram of a dustproof air conditioner compressor end cover sheet metal part according to the present invention.

[0016] Figure 2 This is a front view schematic diagram of the sheet metal end cover of a dustproof air conditioner compressor according to the present invention.

[0017] Figure 3 This is a frontal three-dimensional structural diagram of the welding joint reinforcement and protection device of this utility model.

[0018] Figure 4 This is a front view cross-sectional schematic diagram of the welding joint reinforcement and protection device of this utility model.

[0019] In the diagram: 1. Metal sealing sleeve; 2. End cap welded fixing flange; 3. Welded joint reinforcement and protection device; 4. Metal end cap; 5. Metal exhaust pipe; 6. Terminal block; 7. Terminal head; 8. Rubber sealing sleeve; 9. Rotary handle; 10. Tightening and reinforcing metal ring A; 11. External threaded connecting ring; 12. Tightening and reinforcing metal ring B; 13. Internal threaded connecting ring. Detailed Implementation

[0020] 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.

[0021] This utility model provides, for example Figure 1-4 The diagram shows a dustproof air conditioner compressor end cover sheet metal part, including a metal end cover 4 and a metal sealing sleeve 1 disposed at the bottom end of the metal end cover 4. The metal end cover 4, as the main covering component, protects the internal structure of the compressor. Its robust material can withstand certain pressure and external impacts, ensuring the safe operation of the compressor. The metal sealing sleeve 1 can be fully inserted into the opening at the top of the compressor housing, and the outer wall of the metal sealing sleeve 1 fits snugly against the circular inner wall of the compressor housing. After the metal sealing sleeve 1 is inserted into the compressor housing, a tight fit is achieved, effectively preventing dust and impurities from entering the compressor from the connection point, ensuring a clean environment inside the compressor, and reducing malfunctions caused by dust and other impurities. An end cover weld is provided on the circular outer wall at the bottom end of the metal end cover 4. The compressor housing is equipped with a fixed flange 2. The circular outer wall at the top of the compressor housing is provided with a housing welding fixed flange. After the end cover welding fixed flange 2 and the housing welding fixed flange are fitted together, they are fixedly connected by fusion welding. The two are fixedly connected by fusion welding, which provides a strong connection method to ensure that the metal end cover 4 is tightly combined with the compressor housing and is not easy to separate. It can withstand the vibration and pressure generated during the operation of the compressor and ensure the stability of the overall structure. A metal exhaust pipe 5 is provided on the left side of the center of the top of the metal end cover 4. The bottom end of the metal exhaust pipe 5 completely penetrates the top of the metal end cover 4. The metal exhaust pipe 5 can discharge the gas inside the compressor in time, maintain the internal pressure balance, ensure the normal operation of the compressor, and avoid failures and safety hazards caused by excessive internal pressure.

[0022] like Figure 1 and Figure 2As shown, a junction box 6 is located on the right side of the center of the top of the metal end cap 4. Multiple connectors 7 are located inside the junction box 6. The junction box 6 provides connection points for internal electrical components, facilitating the layout of electrical circuits, making electrical connections more standardized and orderly, and simplifying maintenance and repair. A rubber sealing sleeve 8 is fitted over the junction box 6. An inlet / outlet hole is located at the center of the top of the rubber sealing sleeve 8. After the rubber sealing sleeve 8 is fitted over the junction box 6, wires can pass through the inlet / outlet hole, while also providing a seal to prevent dust and moisture from entering the connection point, protecting the electrical connection from external environmental influences, and improving the reliability and safety of the electrical system. This dustproof air conditioning compressor end cap sheet metal part mainly achieves its function through the following methods: Metal end cap 4 The metal sealing sleeve 1 at the bottom is inserted into the opening at the top of the compressor housing. The initial seal is achieved by the fit between its outer wall and the circular inner wall of the compressor housing. The end cover welding fixing flange 2 and the housing welding fixing flange are welded together to ensure that the metal end cover 4 is firmly connected to the compressor housing. At the same time, a welding reinforcement protection device 3 is set on the outside of the metal end cover 4 to further enhance the stability and sealing of the connection and prevent dust and other impurities from entering. The metal exhaust pipe 5 is used to discharge the gas inside the compressor and maintain the internal pressure balance. The terminal block 6 is used to connect the internal electrical components. The externally fitted rubber sealing sleeve 8 allows the wires to pass through the inlet and outlet holes, and at the same time plays a sealing role to prevent dust and moisture from entering the wiring.

[0023] like Figure 1 , Figure 3 and Figure 4As shown, a weld reinforcement and protection device 3 is provided on the outside of the metal end cap 4. The weld reinforcement and protection device 3 includes a clamping and reinforcing metal ring A10, an external threaded connecting ring 11, a clamping and reinforcing metal ring B12, and an internal threaded connecting ring 13. The clamping and reinforcing metal ring B12 is sleeved on the outer circle of the metal end cap 4, and the clamping and reinforcing metal ring A10 is sleeved on the outer circle of the compressor housing. An internal threaded connecting ring 13 is provided at the bottom end of the clamping and reinforcing metal ring B12, and the internal threaded connecting ring 13 is flush with the outer circle of the clamping and reinforcing metal ring B12. An external threaded connecting ring 11 is provided at the top end of the clamping and reinforcing metal ring A10, and the external threaded connecting ring 11 can be threaded into the inside of the internal threaded connecting ring 13. The device 3 also includes multiple rotating handles 9. Multiple rotating handles 9 are welded at equal intervals to the bottom end of the compression and reinforcement metal ring A10 and the top end of the compression and reinforcement metal ring B12. The rotating handles 9 can drive the compression and reinforcement metal ring A10 and the compression and reinforcement metal ring B12 to rotate clockwise and counterclockwise. The inner diameters of the external threaded connecting ring 11 and the internal threaded connecting ring 13 are larger than the outer diameters of the housing welded fixing flange and the end cover welded fixing flange 2. This ensures that there will be no interference with the flange during the reinforcement operation, and also facilitates installation and disassembly. The height of the external threaded connecting ring 11 is the same as the depth of the internal threaded connecting ring 13, which ensures the tightness of the connection between the two metal rings after full insertion, further improving the reinforcement and protection effect.

[0024] like Figure 1 , Figure 3 and Figure 4As shown, the height of the external threaded connecting ring 11 is the same as the depth of the internal threaded connecting ring 13. After the external threaded connecting ring 11 is fully threaded into the internal threaded connecting ring 13, the clamping and reinforcing metal rings A10 and B12 are respectively clamped onto the bottom end of the housing welded fixing flange and the top end of the end cover welded fixing flange 2. The reinforcement and protection device 3 at the weld joint achieves reinforcement and protection of the sheet metal weld joint of the air conditioner compressor end cover in the following way: the clamping and reinforcing metal rings A10 and B12 are respectively sleeved on the outside of the compressor housing and the metal end cover 4, using the strength of their metal material to provide additional support for the weld joint. When reinforcement is required, the clamping and reinforcing metal rings A10 and B12 are rotated by rotating the handle 9. Since the external threaded connecting ring 11 at the top of the clamping and reinforcing metal ring A10 can be threaded into the clamping and reinforcing metal ring 13, the external threaded connecting ring 11 at the top end of the clamping and reinforcing metal ring A10 can be threaded into the clamping and reinforcing metal ring 13. Inside the internally threaded connecting ring 13 at the bottom of ring B12, as the rotation operation proceeds, the externally threaded connecting ring 11 gradually screws into the internally threaded connecting ring 13, bringing the two metal rings closer together. When the externally threaded connecting ring 11 is fully threaded into the internally threaded connecting ring 13, the compression reinforcing metal rings A10 and B12 are respectively pressed tightly against the bottom of the housing welded fixing flange and the top of the end cover welded fixing flange 2. In this way, on the one hand, pressure is applied to the weld in the vertical direction, enhancing the tightness of the weld connection and preventing loosening or cracking of the weld due to vibration or other external forces. On the other hand, the two metal rings provide a relatively closed protective space for the weld, reducing the erosion of the weld by external impurities such as dust and moisture, thereby extending the service life of the weld and improving the overall reliability and stability of the air conditioning compressor end cover sheet metal parts.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dustproof air conditioning compressor end cover sheet metal part, comprising a metal end cover (4) and a metal sealing sleeve (1) disposed at the bottom end of the metal end cover (4), wherein the metal sealing sleeve (1) can be completely inserted into the top opening of the compressor housing, and the outer wall of the metal sealing sleeve (1) is fitted with the circular inner wall of the compressor housing; an end cover welding fixing flange (2) is provided on the circular outer wall at the bottom end of the metal end cover (4), and a housing welding fixing flange is provided on the circular outer wall at the top end of the compressor housing; the end cover welding fixing flange (2) and the housing welding fixing flange are fitted together and then fixedly connected by fusion welding, characterized in that: The metal end cap (4) is provided with a weld reinforcement and protection device (3) on the outside; The weld reinforcement and protection device (3) includes a compression reinforcement metal ring A (10), an external threaded connecting ring (11), a compression reinforcement metal ring B (12), and an internal threaded connecting ring (13). The compression reinforcement metal ring B (12) is sleeved on the outer circle of the metal end cap (4). The compression reinforcement metal ring A (10) is sleeved on the outer circle of the compressor housing. The bottom end of the compression reinforcement metal ring B (12) is provided with an internal threaded connecting ring (13). The internal threaded connecting ring (13) is flush with the outer circle of the compression reinforcement metal ring B (12). The top end of the compression reinforcement metal ring A (10) is provided with an external threaded connecting ring (11). The external threaded connecting ring (11) can be threaded into the inside of the internal threaded connecting ring (13).

2. The dustproof air conditioner compressor end cover sheet metal part according to claim 1, characterized in that: The weld reinforcement and protection device (3) also includes multiple rotating handles (9). Multiple rotating handles (9) are welded at equal intervals to the bottom of the compacted metal ring A (10) and the top of the compacted metal ring B (12). The rotating handles (9) can drive the compacted metal ring A (10) and the compacted metal ring B (12) to rotate clockwise and counterclockwise.

3. The dustproof air conditioner compressor end cover sheet metal part according to claim 2, characterized in that: The inner diameters of the external threaded connecting ring (11) and the internal threaded connecting ring (13) are both larger than the outer diameters of the shell welded fixing flange and the end cover welded fixing flange (2).

4. The dustproof air conditioner compressor end cover sheet metal part according to claim 3, characterized in that: The height of the external threaded connecting ring (11) is the same as the depth of the internal threaded connecting ring (13). After the external threaded connecting ring (11) is fully threaded into the internal threaded connecting ring (13), the compacted reinforcing metal ring A (10) and the compacted reinforcing metal ring B (12) are respectively compacted on the bottom end of the shell welded fixed flange and the top end of the end cover welded fixed flange (2).

5. A dustproof air conditioner compressor end cover sheet metal part according to claim 1, characterized in that: A metal exhaust pipe (5) is provided on the left side of the top center of the metal end cap (4), and the bottom end of the metal exhaust pipe (5) completely penetrates the top of the metal end cap (4). A wiring tube (6) is provided on the right side of the top center of the metal end cap (4).

6. The dustproof air conditioner compressor end cover sheet metal part according to claim 5, characterized in that: The junction box (6) is provided with multiple connectors (7) inside, and a rubber sealing sleeve (8) is fitted on the outside of the junction box (6). The rubber sealing sleeve (8) has an inlet and outlet hole at the center of its top.

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