Elastic supporting structure, slip sheet assembly and compressor

Abstract

The invention relates to an elastic supporting structure, a slip sheet assembly and a compressor. The elastic supporting structure comprises an expansion pipe made of a thermal expansion material, and a closed cavity is formed in the expansion pipe; the elastic piece is installed in the expansion pipe and stretches out and draws back along with the expansion pipe; the low-pressure side ventilation component is communicated with the closed cavity, is used for being connected with a sliding sheet of the compressor and is communicated with the low-pressure side of the sliding sheet; and the high-pressure side ventilation component is communicated with the closed cavity, is used for being connected with the slip sheet and can be connected and disconnected with the high-pressure side of the slip sheet. And when the slip sheet extends to a preset length, the high-pressure side ventilation part is communicated with the high-pressure side of the slip sheet, so that gas on the high-pressure side enters the closed cavity to enable the expansion pipe to contract, and the rigidity of the elastic part is dynamically adjusted. By means of the elastic supporting structure, the problem that in the prior art, a compressor is difficult to effectively solve the problem that in the movement process of a sliding piece, the noise is generated is solved.

Description

Technical Field

[0001] This invention relates to the field of compressor technology, specifically to an elastic support structure, a vane assembly, and a compressor. Background Technology

[0002] In the design and operation of rotary compressors, ensuring compressor reliability and reducing noise are two key challenges. Specifically, during low-frequency operation, a common problem is the disengagement of the vanes and rollers due to liquid carryover during suction or other adverse operating conditions, resulting in an unpleasant clicking sound. This clicking sound not only affects the user experience but may also indicate potential mechanical failures, requiring timely resolution to maintain the compressor's normal operation. Furthermore, during high-frequency operation, the pump springs require frequent reciprocating motion. This long-term dynamic load easily leads to spring fatigue, resulting in compression, bending, and torsional deformation, which may ultimately cause abnormal wear between the spring and the cylinder spring bore, or even spring breakage. These problems not only reduce the compressor's operating efficiency but also shorten its service life.

[0003] Currently, many compressor designs use springs with fixed stiffness, making it impossible to adjust them according to changes in compressor operating conditions. This design falls short in addressing the aforementioned problems. For example, to prevent clicking noise during low-frequency operation, spring stiffness is often set high to ensure continuous contact between the vane and roller. However, this may exacerbate spring wear during high-frequency operation, as high-stiffness springs experience greater stress and deformation during compression. Conversely, while a lower spring stiffness may reduce wear during high-frequency operation, it may not effectively prevent the vane from disengaging from the roller during low-frequency operation, thus failing to eliminate the clicking noise.

[0004] Therefore, how to dynamically adjust the spring stiffness without increasing structural complexity to adapt to the needs of different operating conditions has become an urgent problem to be solved in the field of compressor design. Summary of the Invention

[0005] This invention relates to an elastic support structure, a sliding vane assembly, and a compressor, which overcomes the problem of clicking noise during the movement of the sliding vane in existing compressors.

[0006] One aspect of this application provides an elastic support structure, including an expansion tube made of a thermally expandable material, with a closed cavity formed inside the expansion tube; an elastic element installed inside the expansion tube to expand and contract with the expansion tube; a low-pressure side venting component communicating with the closed cavity, the low-pressure side venting component being connected to and communicating with the low-pressure side of the compressor vane, so that the low-pressure side of the vane is kept in communication with the closed cavity through the low-pressure side venting component; and a high-pressure side venting component communicating with the closed cavity, the high-pressure side venting component being connected to and disconnectably configured with the high-pressure side of the vane; wherein, when the vane extends to a predetermined length, the high-pressure side venting component communicates with the high-pressure side of the vane, so that the expansion tube contracts by allowing gas from the high-pressure side to enter the closed cavity, thereby achieving dynamic adjustment of the stiffness of the elastic element.

[0007] Furthermore, the thermal expansion material is polytetrafluoroethylene; and / or, the low-pressure side venting component is tubular; and / or, the high-pressure side venting component is tubular.

[0008] Furthermore, one end of the low-pressure side venting component extends into the expansion tube and is connected to the end of the elastic element near the sliding plate, while one end of the high-pressure side venting component extends into the expansion tube and is connected to the end of the elastic element away from the sliding plate.

[0009] Furthermore, the low-pressure side venting component is connected to the end of the expansion tube near the sliding vane, and one end of the high-pressure side venting component extends into the expansion tube and is connected to the inner bottom surface of the expansion tube.

[0010] Furthermore, the high-pressure side ventilation component is tubular, with one end located outside the expansion tube and the other end having a bend that extends into the expansion tube and connects to the inner bottom surface of the expansion tube.

[0011] Furthermore, a low-pressure side channel is provided on the sliding plate, and a low-pressure vent hole communicating with the low-pressure side channel is provided on the side wall of the sliding plate; the low-pressure side vent component is tubular, and the opening of one end of the low-pressure side vent component is a first through hole, which is oriented away from the expansion tube. The end of the low-pressure side vent component with the first through hole is slidably inserted into the low-pressure side channel, and the end of the low-pressure side vent component away from the first through hole is connected to the closed cavity.

[0012] Furthermore, a high-pressure side channel is provided on the sliding plate, and a high-pressure vent hole communicating with the high-pressure side channel is provided on the side wall of the sliding plate. The high-pressure side vent component is tubular, with one end of the tube being sealed. A second through hole is provided on the tube wall at one end of the high-pressure side vent component. The end of the high-pressure side vent component with the second through hole is slidably inserted into the high-pressure side channel, and the end of the high-pressure side vent component away from the second through hole is connected to the closed cavity.

[0013] Furthermore, the elastic element is a spring structure made of stainless steel; and / or, the outer peripheral surface of the elastic element in its normal state is in contact with the inner wall surface of the expansion tube in its normal state.

[0014] Another aspect of this application provides a slider assembly, including a slider, and the slider assembly further includes the aforementioned elastic support structure.

[0015] Another aspect of this application provides a compressor including a cylinder and rollers disposed within the cylinder. The compressor also includes the aforementioned vane assembly, which cooperates with the rollers, and the expansion tube of the vane assembly is interference-fitted with a spring bore in the cylinder.

[0016] In the elastic support structure of this application, the low-pressure side venting component is in a conductive state throughout the entire working stroke. Only when the slider is about to extend to its shortest point, i.e., when the compression of the elastic element is about to reach its maximum, does this high-pressure side venting component connect with the high-pressure side of the slider; otherwise, it is closed. During high-pressure operation, the introduction of high-pressure gas into the closed cavity causes the low pressure in the expansion tube and the high pressure in the compression chamber to mix instantaneously. At this point, heat transfer has not yet begun, and the temperature is approximately constant. According to the gas state equation, PV = nRT, with a constant temperature, the pressure inside the closed cavity increases, the volume decreases, the expansion tube contracts, and the outer diameter of the expansion tube decreases. The stiffness of the elastic element is proportional to its diameter, thus reducing the spring stiffness and increasing its bending strength. This indirectly relieves the high-pressure load, balances the pressure difference between the two sides of the slider, reduces friction between the low-pressure side and the slider groove, lowers power consumption, and reduces the clicking sound generated by the collision between the slider and the slider groove. It also prevents the spring from being over-compressed for a long time, causing spring to twist and wear.

[0017] In summary, the elastic support structure of this application can not only dynamically adjust the support force of the vane according to the working state of the compressor, but also effectively reduce energy consumption, improve compression efficiency, and reduce the clicking noise generated by the collision between the vane and the vane slot. It has significant innovation and practicality, and is suitable for various types of compressors, especially in refrigeration equipment such as air conditioners and refrigerators, which can significantly improve the performance and service life of the equipment. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0019] Figure 1 A schematic diagram of an elastic support structure according to this application is shown;

[0020] Figure 2 It shows Figure 1 Top view of the elastic support structure in the middle;

[0021] Figure 3 It shows Figure 1 A schematic diagram of the structure after removing the expansion tube;

[0022] Figure 4 It shows Figure 1 A schematic diagram of the high-pressure side ventilation component in the middle;

[0023] Figure 5 A schematic diagram of the slider assembly in this application is shown;

[0024] Figure 6 A schematic diagram of the compressor in this application with the vanes in their longest extended state is shown.

[0025] Figure 7 A schematic diagram of the compressor in this application with the vanes in their shortest extended state is shown.

[0026] Figure 8 A schematic diagram of the low-pressure side of the compressor vane in this application is shown;

[0027] Figure 9 A side view of the vanes of the compressor in this application is shown; and

[0028] Figure 10 A schematic diagram of the high-pressure side of the compressor vane in this application is shown;

[0029] 10. Expansion tube; 11. Closed cavity; 12. Inner bottom surface; 20. Elastic element; 30. Low-pressure side vent component; 31. First through hole; 40. High-pressure side vent component; 41. Bending part; 42. Second through hole; 100. Sliding plate; 101. Low-pressure side channel; 102. Low-pressure vent hole; 103. High-pressure side channel; 104. High-pressure vent hole; 200. Cylinder; 201. Spring hole; 300. Roller. Detailed Implementation

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0032] In this invention, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0033] One aspect of this application provides a flexible support structure, such as Figures 1 to 10 As shown, the elastic support structure includes an expansion tube 10 made of a thermally expandable material, with a closed cavity 11 formed inside the expansion tube 10; an elastic element 20 installed inside the expansion tube 10 to expand and contract with the expansion tube 10; a low-pressure side venting component 30 communicating with the closed cavity 11, which is used to connect with and communicate with the low-pressure side of the compressor vane 100, so that the low-pressure side of the vane 100 is kept in communication with the closed cavity 11 through the low-pressure side venting component 30; and a high-pressure side venting component 40 communicating with the closed cavity 11, which is used to connect with and is configurably connected to the high-pressure side of the vane 100. When the vane 100 extends to a predetermined length, the high-pressure side venting component 40 communicates with the high-pressure side of the vane 100, allowing gas from the high-pressure side to enter the closed cavity 11, causing the expansion tube 10 to contract, thereby dynamically adjusting the stiffness of the elastic element 20. This design can automatically adjust the support force of the vanes according to the pressure changes during compressor operation, thereby preventing excessive deformation of the vanes under high pressure, reducing leakage, and improving compression efficiency; and reducing friction between the vanes and cylinder walls under low pressure, reducing energy consumption, and improving the overall performance of the compressor.

[0034] like Figure 6 As shown, the low-pressure side venting component 30 is in the conductive state throughout the entire working stroke, such as... Figure 7 As shown, when the slider 100 is about to extend to its shortest point, i.e., when the compression of the elastic element 20 is about to reach its maximum, the high-pressure side venting component 40 connects to the high-pressure side of the slider 100, and closes at other points. During high-pressure operation, the introduction of high-pressure gas into the closed cavity 11 causes the low pressure in the expansion tube 10 to mix instantaneously with the high pressure in the compression cavity. At this time, heat transfer has not yet started, and the temperature is approximately constant. According to the gas state equation, PV = nRT, with a constant temperature, the pressure in the closed cavity 11 increases, the volume decreases, the expansion tube 10 contracts, and the outer diameter of the expansion tube 10 decreases. The stiffness of the elastic element is proportional to the diameter of the elastic element, which reduces the spring stiffness, increases the bending strength of the spring, indirectly relieves the high-pressure load, balances the pressure difference between the two sides of the slider 100, reduces the friction between the low-pressure side and the slider groove, reduces power consumption, and also reduces the clicking sound generated by the collision between the slider 100 and the slider groove. At the same time, it also avoids long-term over-compression of the spring, which can cause spring to twist and wear.

[0035] Therefore, the high-pressure side ventilation component 40 is connected to the high-pressure side of the sliding vane 100, causing the expansion tube 10 to contract, increasing the stiffness of the elastic element 20, and effectively preventing excessive deformation of the sliding vane 100 under high pressure, thereby reducing gas leakage and improving compression efficiency. During low-pressure operation, the low pressure causes the expansion tube 10 to return to its original shape, reducing the stiffness of the elastic element 20, reducing friction between the sliding vane 100 and the cylinder wall, and reducing energy consumption. This structure makes the compressor operate more efficiently and smoothly in air conditioners, refrigerators, heat pumps, and other equipment, reducing the overall operating cost of the equipment and extending its service life. It has a significant competitive advantage, especially in modern refrigeration equipment that pursues high efficiency and energy saving. It is evident that the implementation of this elastic support structure significantly improves the adaptability and performance of the compressor under different operating conditions.

[0036] In this embodiment, the thermal expansion material is polytetrafluoroethylene (PTFE); and / or, the low-pressure side venting component 30 is tubular; and / or, the high-pressure side venting component 40 is tubular. PTFE possesses excellent thermal expansion properties and chemical stability, ensuring reliable operation of the expansion tube under high and low pressure environments and extending the service life of the structure. The tubular venting component design not only simplifies the structure but also improves gas flow efficiency, ensuring rapid switching between high-pressure and low-pressure sides. It is suitable for compressors requiring frequent start-stop operations or operating in variable frequency mode, such as residential air conditioners and commercial refrigeration systems.

[0037] Polytetrafluoroethylene (PTFE) was chosen as the thermal expansion material not only because of its excellent thermal expansion properties but also because of its chemical stability. This stability allows the material to maintain stable performance in the harsh environment of high temperature and high pressure inside the compressor, preventing performance degradation caused by aging or deformation. The tubular venting component design optimizes the gas flow path, reduces gas flow resistance, and ensures rapid switching between high-pressure and low-pressure sides. This is particularly important in residential air conditioners and commercial refrigeration systems with variable frequency operation that require frequent start-stop cycles. It effectively reduces compressor start-up shock, improves operational continuity and stability, reduces energy consumption, and extends equipment lifespan.

[0038] In this embodiment, as Figure 5 As shown, one end of the low-pressure side venting component 30 extends into the expansion tube 10 and is connected to the end of the elastic element 20 near the sliding vane 100, while one end of the high-pressure side venting component 40 extends into the expansion tube 10 and is connected to the end of the elastic element 20 away from the sliding vane 100. This connection method ensures that the stiffness of the elastic element can be precisely adjusted when the sliding vane extends and retracts, improving the stability and efficiency of the compressor operation. It is suitable for precision refrigeration equipment requiring high-precision control, such as laboratory refrigeration systems and refrigeration units in medical equipment.

[0039] By connecting the low-pressure side vent 30 to the elastic element near the sliding vane 100, and the high-pressure side vent 40 to the elastic element away from the sliding vane 100, this precise connection ensures that the stiffness of the elastic element 20 can be dynamically and precisely adjusted in each working cycle of the compressor. This has unique advantages in equipment requiring high-precision control, such as laboratory refrigeration systems and refrigeration units in medical devices, providing stable cooling effects, meeting the temperature control requirements of precision experiments or medical processes, and improving research efficiency and medical quality.

[0040] In this embodiment, as Figure 5 As shown, the low-pressure side venting component 30 is connected to the end of the expansion tube 10 near the sliding vane 100, and one end of the high-pressure side venting component 40 extends into the expansion tube 10 and connects to the inner bottom surface 12 of the expansion tube 10. This arrangement maximizes the utilization of the thermal expansion performance of the expansion tube 10, ensuring that the support state of the sliding vane 100 can respond quickly under different pressures. It is suitable for compressors requiring rapid response, such as inverter air conditioners and fast-cooling refrigerators. By optimizing the connection layout between the venting component and the expansion tube 10, the support state of the sliding vane 100 can be quickly adjusted to the optimal state when the pressure changes. This is particularly important in devices such as inverter air conditioners and fast-cooling refrigerators. Inverter air conditioners need to quickly adjust their operating state according to the indoor temperature and the set temperature, while fast-cooling refrigerators need to reduce the temperature to the set value in a short time. This flexible support structure ensures that the compressor in these devices responds efficiently and quickly to pressure changes, improving cooling speed, shortening temperature adjustment time, and enhancing the user experience.

[0041] In this embodiment, as Figure 4 As shown, the high-pressure side venting component 40 is tubular. One end of the high-pressure side venting component 40 is located outside the expansion tube 10, and the other end of the high-pressure side venting component 40 is provided with a bend 41. The bend 41 extends into the expansion tube 10 and connects to the inner bottom surface 12 of the expansion tube 10. The design of the bend 41 not only avoids interference between the high-pressure side venting component and the sliding vane or other components, but also ensures the smooth introduction of high-pressure gas. It is suitable for compressor designs with limited space, such as miniaturized, highly integrated refrigeration compressors.

[0042] The bend in the design cleverly solves the space constraints that high-pressure side ventilation components may encounter within compact compressors. In miniaturized, highly integrated refrigeration compressors, the space between components is extremely limited. Traditional straight ventilation components may interfere with other components, affecting the normal operation of the compressor. This high-pressure side ventilation component with a bend, however, enables efficient introduction of high-pressure gas within a minimal space, ensuring the reliability and performance of the compressor in its highly integrated design. It is suitable for space-constrained applications such as portable refrigeration equipment and built-in refrigerators, enhancing the overall design flexibility of the equipment.

[0043] In this embodiment, as Figures 8 to 10 As shown, a low-pressure side channel 101 is provided on the sliding vane 100, and a low-pressure vent hole 102 communicating with the low-pressure side channel 101 is provided on the side wall of the sliding vane 100. The low-pressure side venting component 30 is tubular, and the opening at one end of the low-pressure side venting component 30 is a first through hole 31. The first through hole 31 is oriented away from the expansion tube 10. The end of the low-pressure side venting component 30 with the first through hole 31 is slidably inserted into the low-pressure side channel 101, and the end of the low-pressure side venting component 30 away from the first through hole 31 is connected to the closed cavity 11. This design can ensure the stable introduction of low-pressure gas during the movement of the sliding vane, reduce the friction of the sliding vane under low pressure, and reduce energy consumption. It is suitable for compressors that require low-energy operation, such as energy-saving air conditioners and refrigerators.

[0044] By incorporating low-pressure side channels and vents on the sliding vane, and precisely matching them with the low-pressure side venting components, the friction of the sliding vane 100 under low-pressure conditions can be effectively reduced, thereby lowering compressor energy consumption and extending the service life of the vane. This design is particularly suitable for energy-efficient air conditioners and refrigerators that prioritize low energy consumption and long lifespan. In energy-efficient air conditioners, it significantly reduces energy consumption during low-load operation, improving energy efficiency; in refrigerators, it reduces energy consumption during non-cooling or low-load cooling conditions, significantly impacting refrigerator lifespan and reducing operating costs.

[0045] In this embodiment, a high-pressure side channel 103 is provided on the vane 100, and a high-pressure vent hole 104 communicating with the high-pressure side channel 103 is provided on the side wall of the vane 100. The high-pressure side venting component 40 is tubular, with one end of the tube sealed. A second through hole 42 is provided on the tube wall of one end of the high-pressure side venting component 40. The end of the high-pressure side venting component 40 with the second through hole 42 is slidably inserted into the high-pressure side channel 103, and the end of the high-pressure side venting component 40 away from the second through hole 42 is connected to the closed cavity 11. This arrangement ensures that high-pressure gas can quickly enter the closed cavity 11 when the vane 100 extends to a predetermined length, causing the expansion tube 10 to contract, increasing the stiffness of the elastic element 20, effectively preventing excessive deformation of the vane 100 under high pressure, and improving compression efficiency. It is suitable for compressors that frequently operate under high-pressure conditions, such as industrial refrigeration systems and large air conditioners.

[0046] In equipment operating under frequent high-pressure conditions, such as industrial refrigeration systems and large air conditioners, this elastic support structure can significantly improve the working stability of the vanes, prevent vane deformation under high pressure, thereby reducing gas leakage and improving compression efficiency. This design not only meets the challenges of long-term high-pressure operation in industrial refrigeration systems, but also meets the needs of large air conditioners for efficient operation under extreme weather conditions. It reduces maintenance and replacement costs caused by excessive vane deformation, and enhances the overall performance and market competitiveness of the equipment.

[0047] In this embodiment, the elastic element 20 is a stainless steel spring structure; and / or, the outer peripheral surface of the elastic element 20 in its normal state is in contact with the inner wall surface 12 of the expansion tube 10 in its normal state. The stainless steel spring structure not only possesses good elasticity and stability but also can withstand the high temperature and high pressure environment during compressor operation, extending the service life of the elastic element 20. The tight contact design between the elastic element 20 and the expansion tube 10 ensures that the stiffness of the elastic element 20 is quickly adjusted when pressure changes, making it suitable for compressors requiring high reliability and long service life, such as commercial refrigeration equipment and industrial air conditioning systems.

[0048] The use of stainless steel elastic components not only ensures stability and durability under high temperature and pressure environments, but also extends the service life of the elastic component 20 due to its excellent elasticity and fatigue resistance, reducing compressor performance degradation caused by aging or damage to the elastic component 20. This design is particularly suitable for commercial refrigeration equipment and industrial air conditioning systems, which often require long-term, continuous operation in harsher environments. The tight contact between the stainless steel elastic component and the expansion tube ensures rapid adjustment of the support force when pressure changes, improving the compressor's pressure resistance and operating efficiency, and reducing the maintenance frequency and operating costs of commercial and industrial refrigeration equipment, resulting in significant economic and social benefits.

[0049] Another aspect of this application provides a vane assembly, including a vane 100, and the vane assembly also includes the aforementioned elastic support structure. This vane assembly can automatically adjust the support force of the vane according to the operating state of the compressor, reducing friction of the vane under low pressure and leakage under high pressure, improving the efficiency and stability of the compressor, and is suitable for various refrigeration equipment requiring high-performance compressors, such as household appliances, commercial refrigeration systems, industrial air conditioners, etc.

[0050] like Figure 5 , Figures 8 to 10 As shown, a low-pressure side channel 101 is provided on the slide plate 100, and a low-pressure vent hole 102 communicating with the low-pressure side channel 101 is provided on the side wall of the slide plate 100; the low-pressure side venting component 30 is tubular, and the opening of one end of the low-pressure side venting component 30 is a first through hole 31. The first through hole 31 is arranged in a direction away from the expansion tube 10. The end of the low-pressure side venting component 30 with the first through hole 31 is slidably inserted into the low-pressure side channel 101, and the end of the low-pressure side venting component 30 away from the first through hole 31 is connected to the closed cavity 11. The slide plate 100 is provided with a high-pressure side channel 103, and the side wall of the slide plate 100 is provided with a high-pressure vent hole 104 communicating with the high-pressure side channel 103. The high-pressure side venting component 40 is tubular, and the pipe opening at one end of the high-pressure side venting component 40 is in a blocked state. A second through hole 42 is provided on the pipe wall at one end of the high-pressure side venting component 40. The end of the high-pressure side venting component 40 with the second through hole 42 is slidably inserted into the high-pressure side channel 103, and the end of the high-pressure side venting component 40 away from the second through hole 42 is connected to the closed cavity 11.

[0051] The vane assembly with this elastic support structure, by dynamically adjusting the vane support force, not only improves the compressor's operating efficiency under high and low pressure environments but also reduces wear on the vane assembly, extending the compressor's service life. This assembly is particularly suitable for various high-performance refrigeration equipment, such as household appliances like air conditioners and refrigerators, significantly improving the equipment's cooling efficiency and energy efficiency, and reducing user energy consumption. In commercial refrigeration systems and industrial air conditioning, its excellent adaptability to high-pressure operating conditions ensures stable system operation under heavy loads or extreme environments, reducing economic losses and production delays caused by equipment failures, and has significant practical application value.

[0052] Another aspect of this application provides a compressor, such as Figure 6 and Figure 7As shown, the compressor includes a cylinder 200 and rollers 300 disposed within the cylinder 200. The compressor also includes the aforementioned vane assembly, which cooperates with the rollers 300. The expansion tube 10 of the vane assembly is interference-fitted with the spring hole 201 in the cylinder 200. This compressor design not only improves compression efficiency and reduces energy consumption but also extends the compressor's lifespan and reduces maintenance costs. It is suitable for various refrigeration equipment, such as household air conditioners, refrigerators, commercial refrigeration systems, and industrial air conditioners. Especially in modern refrigeration equipment that pursues high efficiency and energy saving, it can significantly improve the overall performance and market competitiveness of the equipment.

[0053] This compressor design significantly improves compressor performance by incorporating a sliding vane assembly with a flexible support structure within the cylinder. In modern refrigeration equipment, especially in energy-efficient residential air conditioners, refrigerators, and commercial refrigeration systems, this compressor design provides more stable and efficient cooling while reducing energy consumption, maintenance costs, and equipment lifespan. This plays a crucial role in lowering user operating costs and enhancing the equipment's market competitiveness. In industrial air conditioning applications, this design can handle higher cooling loads, improve industrial production efficiency, and reduce production interruptions caused by compressor failures. It has profound implications for driving the refrigeration industry towards higher efficiency, energy conservation, and environmental protection.

[0054] During compressor development, compressor reliability is a key consideration and assessment factor. In practice, the clicking noise of the vane during low-frequency operation and the wear or even breakage of the pump spring during high-frequency operation are relatively common problems. The clicking noise is caused by the spring failing to hold the vane in place due to factors such as liquid carryover during suction. Simultaneously, during high-frequency operation, the long-term reciprocating motion of the spring easily leads to fatigue, compression, bending, and torsional deformation, causing wear in contact with the cylinder spring bore, and in severe cases, breakage.

[0055] It is evident that the following technical problems need to be addressed in this application:

[0056] (1) The clicking sound caused by the slip vanes separating from the rollers due to liquid conditions during compressor operation;

[0057] (2) When the spring is running at high frequency for a long time, fatigue will cause abnormal wear of the pump spring.

[0058] This application provides a variable spring stiffness structure, which is an expansion tube spring structure (elastic support structure). The expansion tube 10 is sleeved outside the pump spring. The expansion tube 10 is made of polytetrafluoroethylene. The two ends of the expansion tube 10 are connected to a pin-like structure (low-pressure side venting component 30 and high-pressure side venting component 40). Vent holes are opened on both sides (low-pressure side and high-pressure side) of the slide plate 100. The two ends of the expansion spring component are respectively engaged with the pin holes (low-pressure side channel 101 and high-pressure side channel 103) on both sides of the slide plate 100 to ensure the stability of the spring operation guidance. The entire expansion tube spring is engaged with the low-pressure side of the slide plate at one end and with the high-pressure side at the other end. The low-pressure side is in a continuous state with the entire pipeline (low-pressure side ventilation component 30). The high-pressure side is only in a conductive state when the slide plate is extended to its shortest length. When the slide plate is not extended to its shortest length, the expansion tube spring is in an expanded state, and the stiffness of the spring is relatively increased, ensuring that it can still hold the roller when the slide plate is extended to its longest length, thus preventing the slide plate from separating from the roller and producing a clicking sound. When the spring is at its shortest extension, the expansion tube is connected to the compression chamber, and the pressure inside the expansion tube is lower than the pressure inside the compression chamber. In the instant after mixing, the high pressure flows to the low pressure, and the pressure inside the expansion tube increases relative to when it is not connected. According to the ideal gas equation, the temperature and heat conduction at the instant of mixing are negligible, and the temperature is approximately constant. According to the equation, with a constant temperature, the pressure increases, the volume of the expansion tube decreases, the outer diameter of the expansion tube decreases, the stiffness of the expansion tube spring assembly decreases, and the bending strength increases. This reduces the torsional deformation of the spring under high frequency and high pressure conditions, and improves the reliability of spring operation. At the same time, due to the instantaneous pressure relief, the pressure difference between the high and low pressure of the slider is reduced, the frictional power consumption between the low-pressure side slider and the slider groove is reduced, and the clicking sound generated by the impact is also reduced.

[0059] The inventive point of this application lies in combining a pump spring with an expansion tube, utilizing the pressure of the high and low pressure chambers of the rotor compressor to control the expansion and contraction of the expansion tube, indirectly controlling the outer diameter of the expansion tube spring, and thus affecting the spring's stiffness. When the compressor is running normally, the expansion tube spring expands, its outer diameter increases, and its stiffness increases, providing a greater contact force between the vane and the roller, ensuring that the vane and roller do not separate. When the vane extends to its shortest extension, i.e., the expansion tube spring is at its maximum compression, according to the gas state equation, the working fluid pressure inside the expansion tube increases, the temperature remains constant, and the volume decreases. At this point, the expansion tube shrinks, the stiffness of the expansion tube spring decreases, and the bending fatigue strength increases, reducing the abnormal bending and compression deformation of the spring during long-term reciprocating operation. Then, the next cycle begins. At this time, the low-pressure working fluid at the suction port flows to the high-pressure side of the expansion tube, the pressure inside the expansion tube decreases, and the temperature rises slightly due to heat conduction on the high-pressure side, but the overall increase is not significant. The volume of the expansion tube increases at this point. Since the low-pressure side is continuously conductive, while the high-pressure side is only conductive at the end of a compression cycle, the overall temperature does not change significantly; the main change is the connection between the high and low pressure sides. Throughout the entire cycle, the expansion tube spring component remains within a safe operating range, greatly improving reliability.

[0060] In existing compressors, a clicking sound was found during single-unit sound quality testing; furthermore, during long-term reliability testing, spring wear was frequently observed after the compressor was taken off the production line. This application addresses this issue by controlling the spring stiffness to provide sufficient spring force to prevent the slide from disengaging from the roller when it is at its longest extension, thus reducing the clicking sound. Simultaneously, when the slide is about to extend to its shortest extension, i.e., when the spring compression is at its maximum, the spring stiffness is reduced, increasing the spring's bending strength. This prevents wear caused by prolonged reciprocating spring compression, resulting in deformation and friction with the spring hole. Additionally, the pressure relief reduces the pressure at both ends of the slide, preventing excessive friction between the low-pressure side slide and the slide groove, which would otherwise lead to increased power consumption and further reduce the clicking sound.

[0061] This patent primarily controls the expansion and contraction of the expansion tube spring component to change its outer diameter, thereby altering the spring's stiffness. The expansion tube spring component utilizes polytetrafluoroethylene (PTFE) to form an expansion sleeve structure on the outer layer of the spring. Stainless steel low-pressure side pins (low-pressure side venting component 30) and high-pressure side pins (high-pressure side venting component) respectively engage with pin holes on both sides of the slider 100. The pins are through-hole structures; as the spring compresses and rebounds, the pins reciprocate. Small holes are opened on both sides of the slider, allowing for unrestricted left-right assembly and ensuring the working fluid can enter the expansion tube. A low-pressure side pin guide hole (first guide hole 31) is opened at the top of the low-pressure side pin, remaining open throughout the entire working stroke. A second guide hole 42 is opened on the side of the high-pressure side pin; this hole connects with the high-pressure side guide hole only when the slider is about to extend to its shortest extension, i.e., when the spring compression is about to reach its maximum. The hole closes during other strokes. The entire expansion tube spring assembly can be slightly interference-fitted to the cylinder spring hole.

[0062] Compressor rollers from Figure 6 Gradually move to Figure 7 At this point, the expansion tube of the expansion tube spring is equivalent to a sealed pipe. As compression continues, the exhaust pressure of the compression chamber gradually increases. At this time, the high-pressure side pin moves upward as shown in the diagram until the through hole of the high-pressure side pin connects with the side hole of the high-pressure side of the slider. At this time, the low pressure in the expansion tube and the high pressure in the compression chamber mix instantaneously. Heat transfer has not yet started, and the temperature is approximately constant. According to the gas state equation, PV = nRT, the temperature is constant. At this time, the pressure in the sealed tube increases, the volume decreases, the expansion tube contracts, and the outer diameter of the expansion tube spring decreases. The spring stiffness is proportional to the spring wire diameter. This decrease in spring stiffness increases the bending strength of the spring, indirectly relieves the high-pressure load, balances the pressure difference between the two sides of the slider, reduces the friction between the low-pressure side and the slider groove, reduces power consumption, and also reduces the clicking sound generated by the collision between the slider and the slider groove. At the same time, it also avoids the spring from being over-compressed for a long time, causing the spring to twist and wear.

[0063] At this moment, the roller... Figure 7Gradually operating to Figure 6 At this point, the high-temperature fluid molecules have already convected, causing a slight increase in temperature in the expansion tube. The pressure instantly reaches equilibrium between the high and low pressure components, remaining approximately constant according to the gas law. The expansion tube then expands slightly, increasing the diameter of the spring component, thus increasing its stiffness and spring force, ensuring that... Figure 3 When in the correct state, it can hold the slide plate in place, ensuring that the slide plate does not separate from the roller.

[0064] This cycle repeats continuously. Since the low-pressure side is always open, while the high-pressure side only opens when it is about to reach maximum compression, the low-temperature volume on the low-pressure side inside the sealed expansion tube is relatively large. At the same time, because the compressor operates for a short period of time, some high-temperature fluid molecules on the high-pressure side will continuously transfer to the low-temperature side. The expansion during the vane extension phase is less than the contraction when the vane is at its shortest extension. This ensures that the vane does not detach when it is at its longest extension, without increasing the rotational resistance of the roller. When the vane is at its shortest extension, a portion of the load can be relieved, while the spring stiffness is reduced and the bending strength of the spring is increased, ensuring the reliability of the spring. This achieves the effect described in this patent.

[0065] The elastic support structure in this application will be described in detail below with reference to the accompanying drawings:

[0066] exist Figures 1 to 3 In this design, the elastic element 20 employs a spring structure, preferably made of stainless steel. This material not only possesses excellent elasticity but also remains stable and corrosion-resistant under both high and low pressure environments. The elastic element 20 is installed inside the expansion tube 10, and its connection at both ends to the expansion tube 10 and the high-pressure side venting component 40 provides dynamic support for the sliding vane 100. When high-pressure side gas enters the closed cavity 11, the expansion tube 10 contracts due to the gas pressure, increasing the stiffness of the elastic element 20. This effectively prevents excessive deformation of the sliding vane 100 under high-pressure operating conditions, thereby improving compression efficiency.

[0067] The low-pressure side venting component 30 is preferably a tubular structure, with one end extending into the expansion tube 10 and connected to the end of the elastic element 20 near the sliding vane 100. The first through hole 31 of the low-pressure side venting component 30 is oriented away from the expansion tube 10. When the sliding vane assembly engages with the roller 300 of the compressor, the low-pressure side venting component 30 can be slidably inserted into the low-pressure side channel 101 of the sliding vane 100, ensuring that the low-pressure side gas can enter the closed cavity 11 in a timely manner, allowing the expansion tube 10 to return to its normal state, reducing the stiffness of the elastic element 20, reducing the friction of the sliding vane 100 under low-pressure operating conditions, and reducing energy consumption.

[0068] The high-pressure side ventilation component 40 is also preferably a tubular structure, with one end located outside the expansion tube 10 and the other end having a bend 41 for extending into the expansion tube 10 and connecting to the inner bottom surface 12. The high-pressure side ventilation component 40 has a second through hole 42 on its tube wall. When the vane assembly engages with the compressor roller 300, the end of the high-pressure side ventilation component 40 with the second through hole 42 can be slidably inserted into the high-pressure side channel 103 of the vane 100, ensuring that high-pressure side gas can enter the closed cavity 11 in a timely manner, causing the expansion tube 10 to contract, increasing the stiffness of the elastic element 20, and improving the supporting force of the vane 100 under high-pressure operating conditions of the compressor.

[0069] Figures 8 to 10 The structural details of the vane assembly are further shown. The vane 100 is provided with a low-pressure side channel 101 and a high-pressure side channel 103. These two channels cooperate with the low-pressure side vent component 30 and the high-pressure side vent component 40, respectively, to ensure the introduction and export of gas. The side wall of the vane 100 is also provided with a low-pressure vent hole 102 and a high-pressure vent hole 104. These vent holes are connected to the corresponding channels to form a gas flow path, so that the high-pressure side and low-pressure side of the compressor can be connected to the closed cavity 11 in a timely manner.

[0070] Figure 6 and Figure 7 An application example of the elastic support structure of this application in a compressor is shown, wherein the compressor includes a cylinder 200 and rollers 300 disposed within the cylinder 200. A vane assembly cooperates with the rollers 300, and the expansion tube 10 of the vane assembly is interference-fitted with the spring hole 201 of the cylinder 200. This fit not only ensures the stable position of the vane assembly within the cylinder 200 but also allows the vane 100 to extend and retract according to the movement of the rollers 300, thereby providing dynamic support at different compression stages. During compressor operation, through the low-pressure side channel 101 and high-pressure side channel 103 on the vane 100, and the low-pressure side ventilation component 30 and high-pressure side ventilation component 40, the extension and retraction of the expansion tube 10 can be adjusted in real time according to the pressure changes on the high-pressure and low-pressure sides of the compressor, thereby adjusting the stiffness of the elastic element 20 and achieving dynamic adjustment of the support force on the vane 100.

[0071] exist Figure 6 and Figure 7In the diagram, the sliding vane 100 and roller 300 work together. The rotation of roller 300 causes the sliding vane 100 to slide within cylinder 200, while the elastic support of the sliding vane 100 is provided by expansion tube 10 and elastic element 20. When the compressor operates at high pressure, high-pressure side gas enters the closed chamber 11 through high-pressure side venting component 40, causing expansion tube 10 to contract, increasing the stiffness of elastic element 20, and providing stronger support for sliding vane 100. This maintains better sealing under high pressure and improves compression efficiency. Conversely, at low pressure, low-pressure side gas enters the closed chamber 11 through low-pressure side venting component 30, causing expansion tube 10 to return to its normal state, reducing the stiffness of elastic element 20, decreasing friction of sliding vane 100, and lowering energy consumption. This dynamic adjustment mechanism allows the compressor to maintain optimal performance under different operating conditions, improving equipment efficiency and stability.

[0072] Figure 5 The connection methods between the sliding vane 100 and the low-pressure side venting component 30 and the high-pressure side venting component 40 are described in detail. For example... Figure 4 As shown, one end of the low-pressure side venting component 30 extends into the expansion tube 10 and connects to the end of the elastic element 20 near the sliding plate 100, ensuring that the low-pressure side gas can directly act on the elastic element 20, making it compliant under low-pressure operating conditions and reducing friction. Simultaneously, one end of the high-pressure side venting component 40 also extends into the expansion tube 10, but connects to the end of the elastic element 20 away from the sliding plate 100. This allows the other end of the elastic element 20 to receive stronger support when the high-pressure side gas acts, thereby increasing its stiffness.

[0073] like Figure 5 As shown, a specific embodiment of the high-pressure side venting component 40 can be that one end is located outside the expansion tube 10, while the other end is provided with a bend 41, which extends into the expansion tube 10 and connects to the inner bottom surface 12 of the expansion tube 10. This design helps the high-pressure side gas to be more evenly distributed throughout the bottom of the expansion tube 10, thereby more effectively increasing the stiffness of the elastic element 20. Furthermore, Figure 5 The details of the low-pressure side channel 101 and high-pressure side channel 103 provided on the slider 100 are also shown. These channels are connected to the low-pressure vent 102 and high-pressure vent 104 on the side wall of the slider 100 to ensure that gas can flow freely and realize the dynamic adjustment of the elastic support structure.

[0074] The elastic support structure of this application can not only dynamically adjust the support force of the sliding vane 100 according to the compressor's operating state, but also effectively reduce energy consumption and improve compression efficiency. Its innovation and practicality are significant, applicable to various types of compressors, especially in refrigeration equipment such as air conditioners and refrigerators, where it can significantly improve equipment performance and service life. Through the cooperation of the expansion tube 10 made of thermally expandable material and the elastic element 20, this application achieves real-time adjustment of the support force of the sliding vane 100. The structure is simple, easy to implement, and improves the overall performance of the compressor.

[0075] In practical applications, the choice of thermal expansion material is not limited to polytetrafluoroethylene (PTFE). Any material with thermal expansion properties can be used, as long as it remains stable within the compressor's operating temperature range and can achieve appropriate expansion and contraction under the induction of high and low pressure gases. For example, polyamide and polyetheretherketone (PEEK) are also acceptable materials. Furthermore, the material of the elastic element 20 is not limited to stainless steel; it can be any metallic or non-metallic material with high elasticity and pressure resistance, such as spring steel, titanium alloys, and polymeric elastic materials, as long as it meets the requirements for elastic support and dynamic adjustment.

[0076] In selecting parameters, such as the diameter, length, and coefficient of thermal expansion of the expansion tube 10, as well as the spring constant and pre-compression of the elastic element 20, all need to be optimized based on the specific compressor model and operating conditions. For example, the selection of the coefficient of thermal expansion should ensure that the expansion and contraction of the expansion tube 10 can effectively adjust the stiffness of the elastic element 20 within the compressor's operating temperature range. The selection of the spring constant should take into account the load characteristics of the vane 100 and the compressor's duty cycle, ensuring that the elastic element 20 provides appropriate support force under both high and low pressure conditions.

[0077] In summary, the elastic support structure of this application provides an innovative dynamic support solution for the compressor vane 100. Through the intelligent cooperation of the expansion tube 10 and the elastic element 20, it achieves the function of adjusting the support force of the vane 100 according to the changes in gas pressure on the high-pressure and low-pressure sides of the compressor. This design not only improves the compressor's efficiency but also reduces energy consumption, enhances the overall performance and service life of the equipment, and is particularly suitable for refrigeration equipment where energy efficiency and stability are paramount. Through its simple yet ingenious structural design, the elastic support structure of this application opens up a new direction for the development of compressor technology, possessing broad application prospects and market potential.

[0078] Through the above description, we can gain a more comprehensive understanding of the elastic support structure of this application and its application effects and scenarios in compressors and refrigeration equipment. This structure can not only significantly improve the operating efficiency and stability of the compressor, but also reduce energy consumption and extend the service life of the equipment, and has broad application prospects and practical value.

[0079] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0080] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0081] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An elastic support structure, characterized in that: include: An expansion tube (10) is made of a heat-expandable material, and a closed cavity (11) is formed inside the expansion tube (10); an elastic member (20), the elastic member (20) being installed in the expansion tube (10) so as to expand and contract along with the expansion tube (10); a low-pressure side ventilation component (30) which is in communication with the closed cavity (11); the low-pressure side ventilation component (30) is used to be connected to a vane (100) of a compressor and is in communication with the low-pressure side of the vane (100), so that the low-pressure side of the vane (100) remains in communication with the closed cavity (11) through the low-pressure side ventilation component (30); A high-pressure side ventilation component (40) is communicated with the closed cavity (11), and the high-pressure side ventilation component (40) is used to be connected to the vane (100) of the compressor and is disposed in a switchable manner with the high-pressure side of the vane (100); When the slide (100) is extended to a predetermined length, the high-pressure side ventilation component (40) is connected to the high-pressure side of the slide (100), so that the expansion tube (10) is contracted by allowing the gas on the high-pressure side to enter the closed cavity (11), thereby realizing dynamic adjustment of the stiffness of the elastic member (20).

2. The elastic support structure according to claim 1, characterized in that: The thermally expandable material is polytetrafluoroethylene; and / or The low-pressure side ventilation component (30) is tubular; and / or The high-pressure side ventilation component (40) is tubular.

3. The elastic support structure according to claim 1, characterized in that: One end of the low-pressure side ventilation component (30) extends into the expansion tube (10) and is connected to an end of the elastic member (20) close to the slide vane (100), and one end of the high-pressure side ventilation component (40) extends into the expansion tube (10) and is connected to an end of the elastic member (20) away from the slide vane (100).

4. The elastic support structure according to claim 1, characterized in that: The low-pressure side ventilation component (30) is connected to one end of the expansion pipe (10) close to the slide vane (100), and one end of the high-pressure side ventilation component (40) extends into the expansion pipe (10) and is connected to the inner bottom surface (12) of the expansion pipe (10).

5. The elastic support structure according to claim 1, characterized in that: The high-pressure side ventilation component (40) is tubular, one end of the high-pressure side ventilation component (40) is located outside the expansion tube (10), and the other end of the high-pressure side ventilation component (40) is provided with a bending portion (41), and the bending portion (41) extends into the expansion tube (10) and is connected to the inner bottom surface (21) of the expansion tube (10).

6. The elastic support structure according to claim 1, characterized in that: The slide vane (100) is provided with a low-pressure side channel (101), and the side wall of the slide vane (100) is provided with a low-pressure vent hole (102) connected to the low-pressure side channel (101); the low-pressure side vent component (30) is tubular, and the pipe mouth at one end of the low-pressure side vent component (30) is a first conducting hole (31), and the first conducting hole (31) is arranged in a direction away from the expansion tube (10); the end of the low-pressure side vent component (30) having the first conducting hole (31) can be slidably inserted into the low-pressure side channel (101), and the end of the low-pressure side vent component (30) away from the first conducting hole (31) is connected to the closed cavity (11).

7. The elastic support structure according to claim 1, characterized in that: The slide vane (100) is provided with a high-pressure side channel (103), and a high-pressure vent hole (104) communicating with the high-pressure side channel (103) is provided on the side wall of the slide vane (100); the high-pressure side vent component (40) is tubular, and a pipe opening at one end of the high-pressure side vent component (40) is in a blocked state; a second conducting hole (42) is provided on the pipe wall at one end of the high-pressure side vent component (40); an end of the high-pressure side vent component (40) having the second conducting hole (42) can be slidably inserted into the high-pressure side channel (103), and an end of the high-pressure side vent component (40) away from the second conducting hole (42) is communicated with the closed cavity (11).

8. The elastic support structure according to any one of claims 1 to 7, characterized in that: The elastic member (20) is a spring structure made of stainless steel; and / or The outer peripheral surface of the elastic member (20) when in a normal state contacts the inner wall surface (12) of the expansion tube (10) when in a normal state.

9. A slide assembly, comprising a slide (100), characterized in that: The slide assembly also includes: The elastic support structure according to any one of claims 1 to 8.

10. A compressor, comprising a cylinder (200) and a roller (300) disposed in the cylinder (200), characterized in that: The compressor also includes: The slide assembly as described in claim 9, wherein the slide assembly cooperates with the roller (300), and the expansion tube (10) of the slide assembly is interference fit with the spring hole (201) of the cylinder (200).

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