An air conditioner refrigeration compressor seal

Abstract

The utility model provides a kind of air conditioner refrigeration compressor sealing element, it is related to air conditioning refrigeration equipment technical field, including three arc sealing units, the bottom end left side of arc sealing unit is fixedly connected with connecting block one, the top right side of arc sealing unit is fixedly connected with connecting assembly.The utility model is contacted by the sealing protrusion of arc sleeve shell outer surface with compressor cylinder wall, and elastic buffer layer utilizes self elasticity to make close layer tightly adhere to piston outer surface, form inside and outside double sealing structure, significantly improve sealing effect;Meanwhile, the arc-shaped heat dissipation groove between elastic buffer layer and close layer can accommodate and guide heat flow, heat is dissipated to the outside of arc sleeve shell through the heat-removal hole communicated with arc-shaped heat dissipation groove, realizes the effective heat dissipation of sealing element, passes through heat dissipation channel to speed up heat transfer, to avoid the performance decline of elastic buffer layer and close layer due to long-term high temperature, prolongs the service life of sealing element.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning and refrigeration equipment technology, and in particular to a sealing component for an air conditioning and refrigeration compressor. Background Technology

[0002] The air conditioning compressor is the core component of the air conditioning refrigeration system. Its function is to compress the refrigerant, increasing its pressure and temperature. The refrigerant then releases heat and liquefies in the condenser, and after being throttled and depressurized by the expansion valve, it enters the evaporator to absorb heat and vaporize, thereby achieving heat transfer and cooling effect.

[0003] During the operation of an air conditioning compressor, the seal is an indispensable key component. The seal is used to prevent the refrigerant, lubricating oil and other media inside the compressor from leaking out, while preventing external air, moisture, dust and other impurities from entering the compressor. It directly affects the operating efficiency and service life of the compressor as well as the cooling performance of the air conditioning system. If the seal is not good, it will not only lead to refrigerant leakage and affect the cooling effect, but may also accelerate the wear of internal parts of the compressor due to the entry of impurities, and even cause equipment failure.

[0004] In the prior art, such as Chinese Patent Publication No. CN221033920U, a sealing element and piston used on a refrigerant compressor piston are disclosed, including an inner ring and an outer ring. The inner ring is a C-shaped elastic ring with a certain degree of elasticity. The outer ring has a break, and the two ends of the break adopt an interlocking structure. The outer ring is sleeved outside the inner ring. This utility model increases the expansion range of the outer ring by setting a break in the outer ring. At the same time, the interlocking break design can avoid the formation of sealing gaps during expansion. In addition, by setting a C-shaped and elastic inner ring, the elasticity of the entire sealing element is improved. When the outer ring is worn, it can expand further through the recovery deformation of the inner ring, thereby providing a continuous and effective sealing effect.

[0005] While the seals in the aforementioned patents achieve a certain sealing effect through the elasticity of the inner ring and the disconnection design of the outer ring, they still have the following problems: Firstly, their sealing structure is relatively simple, relying solely on the elastic expansion of the inner ring and the staggered mating of the outer ring to achieve sealing. Under long-term high-temperature environments, the elasticity of the inner ring is prone to decay, resulting in insufficient stability of the sealing effect. Furthermore, the lack of a dedicated heat dissipation structure means that high temperatures can easily lead to a decline in the performance of the seal, affecting its service life. Secondly, installation requires fitting the entire unit onto the piston. For pistons with larger dimensions or complex structures, the installation process is inconvenient, and the disconnection structure of the outer ring is prone to misalignment during installation, affecting the sealing effect. Therefore, we propose a novel sealing component for air conditioning refrigeration compressors. Utility Model Content

[0006] This utility model proposes a sealing component for an air conditioning refrigeration compressor, which has the advantages of good sealing effect, excellent heat dissipation performance and convenient installation, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: an air conditioning refrigeration compressor seal, comprising three arc-shaped sealing units, wherein a connecting block is fixedly connected to the bottom left side of the arc-shaped sealing unit, and a connecting component is fixedly connected to the top right side of the arc-shaped sealing unit.

[0008] The arc-shaped sealing unit includes an arc-shaped shell. Sealing protrusions are fixedly connected to both the left and right sides of the outer surface of the arc-shaped shell. An elastic buffer layer is fixedly connected to the inner surface of the arc-shaped shell. An adhesive layer is fixedly connected to the inner side of the elastic buffer layer. Arc-shaped heat dissipation grooves are formed on both the left and right sides of the opposite surfaces of the elastic buffer layer and the adhesive layer. Several heat dissipation holes are formed on both the left and right sides of the arc-shaped shell. The heat dissipation holes are interconnected with the arc-shaped heat dissipation grooves. The arc-shaped shell is made of a high-strength metal alloy material, specifically a nickel-chromium-molybdenum alloy. The elastic buffer layer is made of EPDM rubber. The adhesive layer is a composite material of polytetrafluoroethylene and bronze powder.

[0009] Preferably, a sliding slot is provided on the right side of the connecting block one, and a fixing slot is provided on the inner side of the sliding slot.

[0010] Preferably, the connecting assembly includes a second connecting plate, which is fixedly connected to the top of the arc-shaped sealing unit. An internal hexagonal knob is rotatably connected to the outer side of the second connecting plate, and a transmission screw is fixedly connected to the side of the internal hexagonal knob.

[0011] Preferably, a connecting groove is provided on the left side of the connecting plate 2, and the end of the transmission screw away from the internal hexagonal knob passes through the interior of the connecting groove and is threadedly connected to a threaded sliding plate on its outer surface. The threaded sliding plate is slidably connected to the interior of the connecting groove, and a U-shaped sliding plate is slidably connected to the left side of the outer surface of the threaded sliding plate. A fixing block is fixedly connected to the bottom left side of the U-shaped sliding plate.

[0012] Preferably, sliding blocks are fixedly connected to both the front and rear sides of the outer surface of the U-shaped sliding plate, and guide grooves are provided on both the front and rear sides of the inner wall of the connecting groove. The sliding blocks are slidably connected to the inner surface of the guide grooves. The top of the guide grooves is an inclined groove, and the bottom of the guide grooves is a straight groove.

[0013] Preferably, the outer surface of the threaded slide plate is fixedly connected to the front and rear sides with limiting slide bars, and the inner surface of the U-shaped slide plate is provided with limiting slide grooves on both the front and rear sides. The outer surface of the limiting slide bar is slidably connected to the inner surface of the limiting slide groove.

[0014] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0015] 1. In this utility model, the sealing protrusion on the outer surface of the arc-shaped sleeve contacts the compressor cylinder wall, and the elastic buffer layer uses its own elasticity to make the bonding layer tightly adhere to the outer surface of the piston, forming a double sealing structure inside and outside, which significantly improves the sealing effect. At the same time, the arc-shaped heat dissipation groove between the elastic buffer layer and the bonding layer can accommodate and guide the flow of heat. The heat is dissipated to the outside of the arc-shaped sleeve through the heat dissipation hole connected to the arc-shaped heat dissipation groove, realizing effective heat dissipation of the seal. The principle is to use the multiple sealing structure to enhance the tightness of the fit and accelerate the heat transfer through the heat dissipation channel, thereby avoiding the performance degradation of the elastic buffer layer and the bonding layer due to long-term high temperature and extending the service life of the seal.

[0016] 2. In this utility model, when installing the seal, the connecting block and the connecting assembly are staggered. Rotating the hexagonal knob drives the transmission screw to rotate, causing the threaded slide plate to slide vertically in the connecting groove. The threaded slide plate drives the U-shaped slide plate to move vertically synchronously. At this time, the sliding block on the U-shaped slide plate slides in the inclined groove at the top of the guide groove, forcing the U-shaped slide plate to slide laterally while moving vertically, so that it is inserted into the sliding slot of the connecting block. Continue rotating the hexagonal knob, and the sliding block enters the straight groove at the bottom of the guide groove. The U-shaped slide plate only slides vertically, driving the fixing block to engage in the fixing slot, thus achieving the fixation between the arc-shaped sealing units. The principle is to convert the threaded transmission into vertical power, combined with the inclined groove to guide the lateral displacement, and finally achieve vertical clamping through the straight groove. This facilitates the installation of the arc-shaped sealing unit on the outer surface of the piston, and the installation process is stable and reliable, avoiding the problem of misalignment affecting the sealing effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the sealing component of the air conditioning refrigeration compressor of this utility model;

[0018] Figure 2 This is a cross-sectional structural diagram of the arc-shaped sealing unit of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the connecting block 1 of this utility model;

[0020] Figure 4 This is a cross-sectional structural diagram of the connecting component of this utility model.

[0021] Legend: 1. Arc-shaped sealing unit; 11. Arc-shaped sleeve; 12. Sealing protrusion; 13. Elastic buffer layer; 14. Adhesive layer; 15. Arc-shaped heat dissipation groove; 16. Heat dissipation hole; 2. Connecting block one; 21. Sliding slot; 22. Fixing slot; 3. Connecting assembly; 31. Connecting plate two; 32. Hexagonal knob; 33. Transmission screw; 34. Threaded sliding plate; 35. U-shaped sliding plate; 36. Fixing block; 37. Sliding block; 38. Guide groove. Detailed Implementation

[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0024] Example 1: As Figure 1 and Figure 2 As shown, this utility model provides a technical solution: it includes three arc-shaped sealing units 1. A connecting block 2 is fixedly connected to the bottom left side of the arc-shaped sealing unit 1, and a connecting component 3 is fixedly connected to the top right side of the arc-shaped sealing unit 1. The arc-shaped sealing unit 1 includes an arc-shaped shell 11. Sealing protrusions 12 are fixedly connected to both the left and right sides of the outer surface of the arc-shaped shell 11. An elastic buffer layer 13 is fixedly connected to the inner surface of the arc-shaped shell 11. An adhesive layer 14 is fixedly connected to the inner side of the elastic buffer layer 13. Arc-shaped heat dissipation grooves 15 are opened on both the left and right sides of the opposite surfaces of the elastic buffer layer 13 and the adhesive layer 14. Several heat dissipation holes 16 are opened on both the left and right sides of the arc-shaped shell 11. The heat dissipation holes 16 and the arc-shaped heat dissipation grooves 15 are interconnected. The arc-shaped shell 11 is made of high-strength metal alloy material, specifically nickel-chromium-molybdenum alloy. The elastic buffer layer 13 is made of EPDM rubber. The adhesive layer 14 is made of a composite material of polytetrafluoroethylene and bronze powder.

[0025] The overall effect achieved by Embodiment 1 is as follows: the arc-shaped housing 11 is made of nickel-chromium-molybdenum alloy, which has high strength and high temperature resistance, providing a stable support for the entire seal; the sealing protrusion 12 is in close contact with the compressor cylinder wall, and the elastic buffer layer 13, together with the elasticity of the elastic buffer layer 13, makes the bonding layer 14 fit tightly against the outer surface of the piston, forming a double seal, which effectively prevents refrigerant leakage and impurities from entering; the arc-shaped heat dissipation groove 15 and the heat dissipation hole 16 form a high-efficiency heat dissipation channel, which can dissipate the heat generated by the seal during operation in a timely manner, avoid the performance degradation of the elastic buffer layer 13 and the bonding layer 14 due to high temperature, and significantly extend the service life of the seal.

[0026] Example 2: As Figure 3 and Figure 4 As shown, this utility model provides a technical solution: a sliding slot 21 is provided on the right side of the connecting block 2, and a fixing slot 22 is provided on the inner side of the sliding slot 21. The connecting assembly 3 includes a connecting plate 31, which is fixedly connected to the top of the arc-shaped sealing unit 1. An internal hexagonal knob 32 is rotatably connected to the outer side of the connecting plate 31. A transmission screw 33 is fixedly connected to the side of the internal hexagonal knob 32. A connecting groove is provided on the left side of the connecting plate 31. The end of the transmission screw 33 away from the internal hexagonal knob 32 passes through the interior of the connecting groove and is threadedly connected to a threaded sliding plate 34 on its outer surface. The threaded sliding plate 34 is slidably connected to the interior of the connecting groove. A U-shaped slide plate 35 is slidably connected to the left side of the outer surface of the threaded slide plate 34. A fixing block 36 is fixedly connected to the bottom left side of the U-shaped slide plate 35. Sliding blocks 37 are fixedly connected to both the front and rear sides of the outer surface of the U-shaped slide plate 35. Guide grooves 38 are provided on both the front and rear sides of the inner wall of the connecting groove. The sliding blocks 37 are slidably connected to the inner surface of the guide grooves 38. The top of the guide grooves 38 is an inclined groove, and the bottom of the guide grooves 38 is a straight groove. Limiting slide bars are fixedly connected to both the front and rear sides of the outer surface of the threaded slide plate 34. Limiting grooves are provided on both the front and rear sides of the inner surface of the U-shaped slide plate 35. The outer surface of the limiting slide bars is slidably connected to the inner surface of the limiting grooves.

[0027] The overall effect achieved by embodiment 2 is as follows: through the cooperation of connecting block 1 2 and connecting component 3, the three arc-shaped sealing units 1 are quickly spliced ​​and fixed. Rotating the internal hexagonal knob 32 can drive the transmission screw 33 to rotate, causing the threaded slide plate 34 to slide in the connecting slide groove, thereby driving the U-shaped slide plate 35 to move. The sliding block 37 in the guide slide groove 38 realizes the composite movement of the U-shaped slide plate 35 in the horizontal and vertical directions, ensuring that the fixing block 36 is accurately inserted into the fixing slot 22. The installation process does not require overall sleeve, the operation is simple and the connection is firm, effectively avoiding the problem of installation misalignment and ensuring the overall sealing performance of the sealing component.

[0028] The working principle of the entire device is as follows: During installation, the three arc-shaped sealing units 1 are placed at the corresponding positions on the outer surface of the piston, so that the connecting block 1 2 is staggered and aligned with the connecting component 3 of the adjacent arc-shaped sealing unit 1. The internal hexagon knob 32 is turned with a tool, and the internal hexagon knob 32 drives the transmission screw 33 to rotate. Since the transmission screw 33 is threadedly connected to the threaded slide plate 34, and the threaded slide plate 34 is restricted by the connecting slide groove to slide vertically, the threaded slide plate 34 will move vertically along the connecting slide groove. When the threaded slide plate 34 moves, the U-shaped slide plate 35 moves vertically in sync through the cooperation of the limiting slide strip and the limiting slide groove. At this time, the sliding block 37 on the U-shaped slide plate 35 slides in the inclined slide groove at the top of the guide slide groove 38. The guiding effect of the inclined slide groove forces the U-shaped slide plate 35 to slide laterally to the left while moving vertically, so that the U-shaped slide plate 35 is inserted into the sliding slot 21 of the connecting block 1 2. Continue to rotate the internal hexagon knob 32, and the sliding block 37 enters the straight slide groove at the bottom of the guide slide groove 38. At this time, the U-shaped slide plate 35 only slides vertically, which drives the fixing block 36 to move down and be inserted into the fixing slot 22 inside the sliding slot 21, completing the splicing and fixing of the three arc-shaped sealing units 1 to form a complete annular seal.

[0029] During operation, the sealing protrusions 12 on the outer surface of the arc-shaped housing 11 are tightly fitted to the compressor cylinder wall. The elastic buffer layer 13 generates continuous pressure due to its own elasticity, pushing the bonding layer 14 into close contact with the outer surface of the piston. The double sealing structure effectively prevents refrigerant leakage and the entry of external impurities. At the same time, the seals generate heat due to friction and refrigerant compression during compressor operation. The heat is transferred to the arc-shaped heat dissipation groove 15 through the elastic buffer layer 13 and the bonding layer 14, and then dissipated to the outside of the arc-shaped housing 11 through the heat dissipation hole 16 connected to the arc-shaped heat dissipation groove 15. This achieves rapid heat dissipation, avoids performance degradation of the seals due to high temperature, and ensures long-term stability of the sealing effect.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A sealing component for an air conditioning refrigeration compressor, characterized in that: It includes three arc-shaped sealing units (1), with a connecting block (2) fixedly connected to the bottom left side of the arc-shaped sealing unit (1) and a connecting component (3) fixedly connected to the top right side of the arc-shaped sealing unit (1). The arc-shaped sealing unit (1) includes an arc-shaped shell (11). Sealing protrusions (12) are fixedly connected to the left and right sides of the outer surface of the arc-shaped shell (11). An elastic buffer layer (13) is fixedly connected to the inner surface of the arc-shaped shell (11). An adhesive layer (14) is fixedly connected to the inner side of the elastic buffer layer (13). Arc-shaped heat dissipation grooves (15) are opened on the left and right sides of the opposite surfaces of the elastic buffer layer (13) and the adhesive layer (14). Several heat dissipation holes (16) are opened on the left and right sides of the arc-shaped shell (11). The heat dissipation holes (16) and the arc-shaped heat dissipation grooves (15) are interconnected. The arc-shaped shell (11) is made of high-strength metal alloy material, specifically nickel-chromium-molybdenum alloy. The elastic buffer layer (13) is made of EPDM rubber.

2. The sealing component for an air conditioning refrigeration compressor according to claim 1, characterized in that: A sliding slot (21) is provided on the right side of the connecting block (2), and a fixing slot (22) is provided on the inner side of the sliding slot (21).

3. The sealing component for an air conditioning refrigeration compressor according to claim 1, characterized in that: The connecting assembly (3) includes a second connecting plate (31), which is fixedly connected to the top of the arc-shaped sealing unit (1). An internal hexagonal knob (32) is rotatably connected to the outside of the second connecting plate (31), and a transmission screw (33) is fixedly connected to the side of the internal hexagonal knob (32).

4. The sealing component for an air conditioning refrigeration compressor according to claim 3, characterized in that: The connecting plate 2 (31) has a connecting groove on its left side. The end of the transmission screw (33) away from the internal hexagonal knob (32) passes through the interior of the connecting groove and has a threaded sliding plate (34) threaded on its outer surface. The threaded sliding plate (34) is slidably connected to the interior of the connecting groove. A U-shaped sliding plate (35) is slidably connected to the left side of the outer surface of the threaded sliding plate (34). A fixing block (36) is fixedly connected to the bottom left side of the U-shaped sliding plate (35).

5. The sealing component for an air conditioning refrigeration compressor according to claim 4, characterized in that: The outer surface of the U-shaped slide plate (35) is fixedly connected with sliding blocks (37) on both the front and rear sides. The inner wall of the connecting slide groove is provided with guide slide grooves (38) on both the front and rear sides. The sliding blocks (37) are slidably connected to the inner surface of the guide slide groove (38). The top of the guide slide groove (38) is an inclined slide groove, and the bottom of the guide slide groove (38) is a straight slide groove.

6. The sealing component for an air conditioning refrigeration compressor according to claim 5, characterized in that: The threaded slide plate (34) has a limiting slide bar fixedly connected to both the front and rear sides of its outer surface, and the U-shaped slide plate (35) has a limiting slide groove opened on both the front and rear sides of its inner surface. The outer surface of the limiting slide bar is slidably connected to the inner surface of the limiting slide groove.

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