Liquid separator, compressor and air conditioner

By using a shape memory drive in the liquid distributor to adjust the height of the oil return hole, the problem that the fixed height of the oil return hole cannot adapt to different working conditions is solved, and the optimal oil return volume control of the compressor under various conditions is achieved, thereby improving the overall performance and efficiency.

CN120627482APending Publication Date: 2025-09-12ZHUHAI LANDA COMPRESSOR +1
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Patent Information

Application Number
CN202510974063.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-15
Publication Date
2025-09-12

AI Technical Summary

Technical Problem

In the prior art, the fixed height of the oil return hole cannot be flexibly adjusted, resulting in the compressor being unable to meet the optimal oil return volume requirements under different working conditions, affecting the overall performance.

Method used

A liquid distributor is designed, which adopts a straight tube, a slider assembly, an upper oil return hole and a lower oil return hole. A shape memory drive element such as a memory wire is used to automatically adjust the position of the slider assembly according to the change of the suction temperature, thereby realizing flexible control of the oil return hole height.

Benefits of technology

By dynamically adjusting the opening and closing status of the oil return hole, the compressor can obtain the best oil return volume under various working conditions, optimize performance, and improve work efficiency and adaptability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The liquid separator comprises a straight pipe, a sliding block assembly, an upper oil return hole and a lower oil return hole, and the upper oil return hole is located in the upper portion of the straight pipe; the lower oil return hole is located in the lower portion of the straight pipe, the sliding block assembly is assembled on the straight pipe, and the sliding block assembly slides towards the direction close to the lower portion of the straight pipe or towards the direction away from the lower portion of the straight pipe along the outer wall of the straight pipe according to rising or falling of the air suction temperature so that the sliding block assembly can close or open the lower oil return hole. By implementing the liquid separator, the height of the oil return hole can be flexibly adjusted, so that the performance of the compressor under different working conditions is optimized.
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Description

Technical Field

[0001] The present invention relates to the technical field of liquid dispensers, and in particular to a liquid dispenser, a compressor and an air conditioner. Background Art

[0002] Compressors are typically equipped with a liquid separator, whose primary function is to separate the gas from the oil in a mixed gas mixture. During this process, gas enters the cylinder through a straight pipe for compression, while the oil settles to the bottom of the separator. To ensure that an appropriate amount of oil can flow back into the cylinder, several oil return holes are designed at specific heights at the bottom of the separator pipe, allowing the oil to return to the cylinder in a controlled manner.

[0003] However, setting the height of these oil return holes is a challenging task because it directly affects the amount of oil returned during compressor operation. In particular, when operating at different frequencies and operating conditions, the demand for oil return volume will vary, which makes it difficult to design an ideal oil return hole position that can meet all conditions. For example, in low-temperature heating or maximum cooling mode, it is necessary to maximize the performance of the compressor, which requires a larger oil return volume. Therefore, it is hoped that the oil return hole is located at a lower position to increase the oil return flow. However, if the oil return hole is set too low, in other operating conditions such as rated cooling or low-temperature intercooling, it will cause excessive liquid refrigerant circulation, which is not conducive to the performance of the compressor.

[0004] The current technical limitation is that once the oil return hole position is set, it cannot be adjusted. This means it cannot flexibly adapt to different operating conditions, thus affecting the overall efficiency of the compressor. This fixed design cannot simultaneously meet the compressor's optimal oil return requirements under various operating conditions.

[0005] Therefore, it is necessary to design a new liquid distributor to flexibly adjust the height of the oil return hole in order to optimize the performance of the compressor under different working conditions. Summary of the Invention

[0006] The purpose of the present invention is to overcome the defects of the prior art and provide a liquid distributor, a compressor and an air conditioner.

[0007] In order to solve the above technical problems, the purpose of the present invention is achieved through the following technical solutions: a liquid distributor is provided, comprising: a straight pipe, a slider assembly, an upper oil return hole and a lower oil return hole, the upper oil return hole is located at the upper part of the straight pipe; the lower oil return hole is located at the lower part of the straight pipe, the slider assembly is assembled on the straight pipe, and the slider assembly slides along the outer wall of the straight pipe toward the lower part of the straight pipe or toward the lower part of the straight pipe according to the increase or decrease of the suction temperature, so that the slider assembly closes or opens the lower oil return hole.

[0008] Its further technical solution is: the slider assembly includes a slider and a shape memory driver, the slider is connected to the shape memory driver, both ends of the shape memory driver are assembled on the straight tube, and the shape memory driver passes through the slider; the slider slides along the straight tube.

[0009] A further technical solution is as follows: the outer end of the slider is raised upward to form a convex block, the convex block is provided with a mounting hole, and the shape memory driving component passes through the mounting hole.

[0010] A further technical solution is: the shape memory driving component includes a memory metal wire.

[0011] A further technical solution is as follows: a notch is provided on the slider, and the slider assembly further includes a limit screw, which is assembled in the notch.

[0012] A further technical solution is as follows: the slider assembly further includes an elastic member, one end of which is connected to the slider; and the other end of the elastic member is connected to the straight tube via a fixing screw.

[0013] A further technical solution is as follows: a connecting hole is provided at one end of the sliding block away from the shape memory driving member, and the elastic member is connected to the connecting hole.

[0014] A further technical solution is: the elastic member includes a spring.

[0015] In addition, in order to overcome the defects of the prior art, the present invention further provides a compressor including the above-mentioned liquid separator.

[0016] In addition, in order to overcome the defects of the prior art, the present invention further provides an air conditioner including the above-mentioned liquid distributor.

[0017] The beneficial effects of the present invention compared to the prior art are as follows: the present invention realizes flexible control of the height of the oil return hole by respectively arranging an upper oil return hole and a lower oil return hole at the upper and lower parts of the straight pipe, and assembling a slider assembly that can automatically adjust its position according to changes in the intake air temperature. Specifically, the slider assembly is installed on the outer wall of the straight pipe and can sense changes in the intake air temperature: when the temperature rises, the slider assembly slides downward along the outer wall of the straight pipe to close the lower oil return hole; when the temperature drops, the slider assembly slides upward to open the lower oil return hole. This design utilizes the driving force generated by the phase change of the shape memory metal wire with temperature changes, combined with the reset force provided by the spring, to ensure that the slider assembly can accurately respond to temperature changes, thereby dynamically adjusting the state of the oil return hole. In this way, under different working conditions, by controlling the opening and closing state of the oil return hole, it is ensured that the compressor obtains the optimal oil return volume, thereby optimizing its performance.

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 A schematic structural diagram of a liquid separator provided by an embodiment of the present invention showing a lower oil return hole in an open state;

[0021] Figure 2 A schematic structural diagram of a liquid separator provided by an embodiment of the present invention in a closed state of the lower oil return hole;

[0022] Figure 3 A schematic diagram of a partial cross-section structure of a liquid dispenser provided in an embodiment of the present invention;

[0023] Figure 4 A schematic side view of the structure of a liquid dispenser provided in an embodiment of the present invention;

[0024] Figure 5 A schematic diagram of the overall cross-sectional structure of a liquid dispenser provided in an embodiment of the present invention;

[0025] Figure 6 A schematic structural diagram of a slider assembly provided in an embodiment of the present invention;

[0026] Figure 7 A schematic structural diagram of a liquid dispenser provided in another embodiment of the present invention;

[0027] Description of the symbols in the figure:

[0028] 1. Intake pipe; 2. Filter assembly; 3. Cylinder; 4. Partition; 5. Straight pipe; 51. Lower oil return hole; 52. Upper oil return hole; 6. Slider assembly; 61. Spring; 62. Notch; 63. Limit screw; 64. Protrusion; 65. Memory wire; 66. Fixing screw; 67. Slider; 7. Bend pipe. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0030] It will be understood that when used in this specification and the appended claims, the terms “comprises” and “comprising” indicate the presence of described features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.

[0031] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the present invention. As used in the specification and appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0032] It should be further understood that the term "and / or" used in the present description and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0033] The compressor's liquid separator optimizes performance by separating the gas and oil in the gas mixture. The design of the oil return hole is crucial to ensuring the proper return of oil to the cylinder. However, the demand for oil return volume varies significantly under different operating conditions. For example, low-temperature heating or maximum cooling modes require a larger oil return volume, while rated cooling or low-temperature intercooling requires controlled liquid refrigerant circulation. Fixed-height oil return holes are difficult to meet the optimal oil return requirements under all operating conditions, limiting the overall efficiency of the compressor. Therefore, the current technology faces the challenge of not being able to flexibly adjust the oil return hole position to adapt to various operating conditions.

[0034] To this end, an embodiment of the present invention provides a liquid separator to achieve flexible adjustment of the height of the oil return hole, so as to optimize the performance of the compressor under different working conditions.

[0035] The liquid distributor utilizes a straight tube 5, a slider assembly 6, an upper oil return hole 52, and a lower oil return hole 51. This design utilizes a shape memory driver (such as a memory wire 65) to automatically adjust the position of the slider assembly 6 according to changes in the suction temperature, thereby enabling control over the opening or closing of the lower oil return hole 51. The slider assembly 6 not only slides along the straight tube 5 to adjust the effective height of the oil return hole, but also incorporates elastic elements and a limiter to ensure accuracy and stability. This design allows the liquid distributor to flexibly adjust the oil return volume based on varying operating requirements, optimizing the compressor's performance under various operating conditions.

[0036] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0037] See also Figures 1 to 2A liquid distributor includes: a straight tube 5, a slider assembly 6, an upper oil return hole 52 and a lower oil return hole 51, the upper oil return hole 52 is located at the upper part of the straight tube 5; the lower oil return hole 51 is located at the lower part of the straight tube 5, the slider assembly 6 is assembled on the straight tube 5, and the slider assembly 6 slides along the outer wall of the straight tube 5 toward the lower part of the straight tube 5 or toward the lower part of the straight tube 5 according to the increase or decrease of the suction temperature, so that the slider assembly 6 closes or opens the lower oil return hole 51.

[0038] In this embodiment, the slider assembly 6 is mounted on the straight tube 5 and automatically adjusts according to changes in the suction air temperature during compressor operation. Specifically, the slider assembly 6 slides up and down along the outer wall of the straight tube 5. As the suction air temperature rises or falls, the slider assembly 6 moves toward or away from the lower portion of the straight tube 5 accordingly.

[0039] This movement is driven by a memory wire 65, part of the slider assembly 6. This memory wire 65 undergoes a phase transformation (from martensite to austenite, and vice versa) at a specific temperature, accompanied by changes in shape and length. When the temperature rises and reaches the phase transformation point of the memory wire 65, the memory wire 65 contracts, pulling the slider 67 downward until it closes the lower oil return hole 51. Conversely, when the temperature drops, the memory wire 65 returns to its original state (i.e., the martensite phase), and the force of the spring 61 pulls the slider 67 back to its original position, thereby opening the lower oil return hole 51.

[0040] Therefore, in this way, the slider assembly 6 can flexibly adjust the state of the oil return hole (open or closed) according to different operating conditions, ensuring that the compressor obtains the optimal oil return under various operating conditions, thereby improving overall performance. In addition, the upper oil return hole 52 remains normally open, ensuring that even when the lower oil return hole 51 is closed, an appropriate amount of oil can still flow back, maintaining normal system operation. This design not only improves the operating efficiency of the compressor, but also enhances its ability to adapt to different operating conditions.

[0041] In one embodiment, see Figures 3 to 6 The above-mentioned slider assembly 6 includes a slider 67 and a shape memory driver. The slider 67 is connected to the shape memory driver. Both ends of the shape memory driver are assembled on the straight tube 5. The shape memory driver passes through the slider 67; the slider 67 slides along the straight tube 5.

[0042] In this embodiment, the slider 67 is in an elongated shape, and after the slider 67 moves, the lower oil return hole 51 can be closed from the lower end.

[0043] In one embodiment, see Figures 3 to 6 The outer end of the slider 67 protrudes upward 64 to form a convex block, and a mounting hole is provided on the convex block, and the shape memory driving member passes through the mounting hole.

[0044] In one embodiment, see Figures 3 to 6 The shape memory driving element includes a memory wire 65 .

[0045] In this embodiment, the slider 67 is located above the shape memory driving member.

[0046] The slider 67 is in an elongated shape, and one end of the slider is provided with a projection. The projection is provided with a mounting hole for passing the shape memory driver. The slider 67 is assembled on the outer wall of the straight tube 5 by a stop screw 63, allowing it to slide up and down along the straight tube 5.

[0047] The shape memory drive element in this embodiment is a memory wire 65. One end of the memory wire 65 is fixed to a fixing screw 66 on the straight tube 5, and the other end passes through a small hole in the head of a slider 67 and is fixed to another fixing screw 66, forming a structure similar to an inverted U shape.

[0048] As the compressor intake temperature changes, the memory wire 65 undergoes a corresponding phase change. At low temperatures, it assumes a martensite phase, while at high temperatures, it assumes an austenite phase. As the temperature rises to a certain level, the memory wire 65 transforms from martensite to austenite, causing the material to contract, pulling the slider 67 downward until its head blocks the lower oil return hole 51, thus closing the oil return hole.

[0049] When the temperature drops, the memory wire 65 transforms from austenite to martensite, and the material returns to its original state. Since the force of the spring 61 is greater than the deformation force of the memory wire 65 when it transforms from austenite to martensite, the spring 61 stretches and drives the slider 67 to slide upward, reopening the lower oil return hole 51.

[0050] The distributor features a dual oil return hole design, one high and one low. The upper return hole remains open at all times, ensuring an adequate amount of oil return even when the lower return hole 51 is closed. The lower return hole, on the other hand, opens and closes based on the position of slider 67, allowing for adjustment of oil circulation and distribution.

[0051] This helps improve its stability on the straight tube 5 and ensures sufficient contact area, allowing the slider 67 to slide smoothly along the outer wall of the straight tube 5. The upward protrusion formed on the outer end of the slider 67 not only provides a fixed point for the memory wire 65, but also increases operational flexibility and reliability. The fixed structure at both ends ensures that any changes in the length of the memory wire 65 due to temperature fluctuations can be effectively converted into the movement force of the slider 67.

[0052] By precisely controlling the movement of slider 67, the oil return port is adjusted to optimize compressor performance under various operating conditions. This design not only improves the system's response speed and accuracy, but also enhances the overall reliability and efficiency of the equipment.

[0053] In summary, slider 67 is secured by stop screw 63, with one side of the slider in close contact with the outer wall of straight tube 5. Slider 67 also has a notch 62, within which stop screw 63 is positioned. This prevents slider 67 from disengaging from straight tube 5 while allowing it to slide up and down along the outer wall. The end of slider 67, near the elastic member, also has protrusions extending in different directions, each with a connection hole. The end of spring 61 hooks into the connection hole and connects to slider 67.

[0054] Both ends of spring 61 are equipped with hooks. One end is connected to the protrusion at the end of slider 67, and the other end is hooked to set screw 66. When slider 67 is at the lower limit, spring 61 is in a stretched state; when slider 67 is at the upper limit, spring 61 is in a normal state or slightly stretched. The main function of spring 61 is to reset and maintain slider 67 in the upper limit position, that is, to keep lower oil return hole 51 open. Within the designed tensile range, the elastic force of spring 61 is less than the deformation force of memory wire 65 when it transforms from martensite to austenite, but greater than the deformation force when it transforms from austenite to martensite.

[0055] The memory wire 65 passes through the mounting hole on the slider 67 and is fixed by the fixing screws 66 at both ends, forming a structure similar to an inverted "U". When the intake temperature reaches the phase transition temperature of the memory wire 65, the memory wire 65 transforms from martensite to austenite, and the shape of the material changes. Due to the restrictions of the fixing screws 66 and the slider 67, the positions of the two ends of the memory wire 65 are fixed when it contracts, and the overall length is shortened, thereby pulling the slider 67 to slide downward. The end of the slider 67 close to the shape memory drive element blocks the oil return hole at the lower end to achieve a closing effect, such as Figure 1 and Figure 2 As shown, when the intake temperature decreases, the memory metal transforms from austenite to martensite. At this time, the deformation force is less than the tension of the spring 61. The spring 61 contracts and pulls the slider 67 upward, thereby achieving the opening effect. At the same time, the memory metal wire 65 is stretched to the shape before the phase change. The above operation is repeated under different intake temperatures under different working conditions to achieve the opening and closing of the lower end oil return hole.

[0056] In one embodiment, both ends of the shape memory driving member are fixed to the straight tube 5 by screws.

[0057] The ends of the shape-memory driver are fixed to the straight tube 5 with screws. This means that one or both ends of the memory wire 65 are fastened to the straight tube 5, forming a structure similar to an inverted U. When the memory wire 65 undergoes a phase change due to temperature fluctuations, its length shortens or lengthens accordingly. This deformation force is used to drive the slider 67 up and down, thereby controlling the opening and closing of the lower oil return hole 51.

[0058] In one embodiment, see Figure 6 The slider 67 is provided with a notch 62, and the slider assembly 6 further includes a stop screw 63, which is assembled within the notch 62. This design ensures that the slider 67 can slide smoothly up and down along the outer wall of the straight tube 5 while preventing it from separating from the straight tube 5. The notch 62 design allows a certain degree of freedom, while also providing the necessary guidance and constraints, ensuring the accuracy and reliability of the slider 67's movement.

[0059] In one embodiment, see Figure 6 The slider assembly 6 also includes an elastic member, one end of which is connected to the slider 67; the other end is connected to the straight tube 5 via a set screw 66. This design utilizes the elastic force of spring 61 to assist in the return of slider 67, thereby maintaining the lower oil return hole open. The function of spring 61 is to provide sufficient force to return slider 67 to its upper limit position when the memory wire 65 returns to its original state or has not reached the phase transition temperature, ensuring that the oil return hole remains open.

[0060] In one embodiment, see Figure 6 The end of the slider 67, away from the shape-memory driver, has a connection hole, to which the elastic member is connected. This allows the spring 61 to apply tension or thrust to the slider 67 through this hole, assisting the slider 67 in opening and closing the oil return hole. This design enhances the flexibility and adaptability of the entire system, ensuring effective adjustment of the oil return flow even under complex operating conditions.

[0061] In one embodiment, see Figure 6 The aforementioned elastic member includes spring 61. As one of the most commonly used elastic elements, spring 61 has excellent elasticity and durability, making it ideal for use in scenarios requiring repetitive movement. It not only provides the necessary restoring force but also absorbs impact to a certain extent, protecting other components from damage.

[0062] In summary, these embodiments can automatically adjust the state of the oil return hole according to different operating conditions of the compressor to achieve the best oil return effect, thereby improving the overall performance of the compressor.

[0063] In this embodiment, the liquid distributor is driven by a memory wire 65 to control the opening and closing of the compressor's oil return hole. The core principle is to utilize the differences in suction temperature under different compressor operating conditions to cause the shape of the memory wire 65 to change, thereby achieving precise control of the lower oil return hole 51. This ensures optimal oil return under various operating conditions, significantly improving the compressor's overall performance.

[0064] Specifically, the memory wire 65 exhibits unique physical properties: it assumes a martensite phase at low temperatures and an austenite phase at high temperatures. When the temperature reaches a critical point, the memory wire 65 undergoes a phase transition, accompanied by a significant structural change, typically manifested as volume expansion or contraction. By precisely controlling the compressor's intake air temperature, the shape of the memory wire 65 can be altered, thereby driving the slider 67 to close or open the lower oil return hole 51. This design ensures optimal oil return under varying compressor operating conditions, fully realizing the compressor's performance potential.

[0065] In other words, the memory wire 65 remembers its original shape and returns to that shape when a certain critical temperature is reached. Its operating principle is based on the phase transition properties of the material: at low temperatures, it assumes a martensite phase, while at high temperatures, it assumes an austenite phase. During this phase transition, the material changes shape, typically manifesting as expansion or contraction in volume. This property is cleverly exploited as a driving force to control the movement of the slider 67, thereby enabling the opening and closing of the oil return hole.

[0066] The liquid separator of this embodiment adopts a dual oil return hole arrangement, namely an upper oil return hole 52 and a lower oil return hole 51, which are "one high and one low". The upper oil return hole 52 always remains in a normally open state, while the lower oil return hole 51 is controlled to open or close according to the suction temperature of the compressor under different operating conditions and the shape change of the memory metal wire 65. When the lower oil return hole 51 is closed, the oil can only flow back through the upper oil return hole 52. At this time, more oil is retained in the lower part of the liquid separator, and the circulation volume of the liquid refrigerant is small. When the lower oil return hole 51 is open, the oil can flow back through the upper and lower oil return holes. At this time, less oil is retained in the lower part of the liquid separator, and the return oil volume is significantly increased.

[0067] In one embodiment, see Figure 7 The spring 61 can be arranged in a variety of ways, and the position restoration force of the slider 67 can be provided by the tension or push of the spring 61. For example, the spring 61 is arranged below the slider 67, that is, in the same direction as the shape memory driver. In this case, the spring 61 mainly drives the movement of the slider 67 by recovering after being compressed.

[0068] Although the overall structures differ in the arrangement of the spring 61 , they all include key components such as the slider 67 , the spring 61 , the memory wire 65 , and have the same working principle, and are therefore considered to be the same structure.

[0069] The liquid distributor of this embodiment is based on the phase change principle of memory metals, utilizing the deformation force associated with the phase change of the memory metal as a driving force to drive slider 67 to close or open the oil return hole. This method enables the use of different oil return hole heights under different operating conditions, ensuring that the compressor obtains the appropriate oil return volume under various operating conditions, thereby significantly improving the overall performance of the compressor.

[0070] Also, see Figure 5 The main structure of the liquid separator includes an intake pipe 1, a filter assembly 2, a cylinder 3, a partition 4, and a bend 7; the intake pipe 1 is connected to the cylinder 3, the partition 4 is placed inside the cylinder 3, and the filter assembly 2 is located inside the cylinder 3, and the filter assembly 2 is located above the partition 4, the lower end of the straight pipe 5 is connected to the bend 7, and the straight pipe 5 is connected to the cylinder 3. The intake pipe 1 is directly connected to the cylinder 3 and serves as the main channel for oil and gas to enter the liquid separator. A partition 4 is set inside the cylinder 3, and the filter assembly 2 is arranged above the partition 4. This layout helps to preliminarily filter and separate impurities and liquid particles in the oil and gas to prevent them from further penetrating into the equipment.

[0071] The lower end of the straight tube 5 is connected to the cylinder 3 via an elbow 7. This arrangement not only ensures a smooth gas flow path but also allows the gas, after preliminary filtration, to enter the straight tube 5 for more refined processing. Of particular note is the slider assembly 6, mounted on the straight tube 5, which automatically adjusts its position based on changes in suction temperature, thereby controlling the opening and closing of the oil return holes (upper oil return hole 52 and lower oil return hole 51). This allows the liquid distributor to flexibly adjust the oil return volume according to actual operating conditions, ensuring that the compressor achieves optimal performance under various operating conditions.

[0072] In summary, the liquid separator achieves effective separation and recovery of oil and gas by carefully designing the positional relationship and functional coordination of each component, while also optimizing the working efficiency and reliability of the compressor.

[0073] The above-mentioned liquid distributor realizes flexible control of the height of the oil return hole by respectively setting an upper oil return hole 52 and a lower oil return hole 51 at the upper and lower parts of the straight tube 5, and assembling a slider assembly 6 that can automatically adjust its position according to changes in the intake air temperature. Specifically, the slider assembly 6 is installed on the outer wall of the straight tube 5 and can sense changes in the intake air temperature: when the temperature rises, the slider assembly 6 slides downward along the outer wall of the straight tube 5, closing the lower oil return hole 51; when the temperature drops, the slider assembly 6 slides upward, opening the lower oil return hole 51. This design utilizes the driving force generated by the phase change of the shape memory wire 65 with temperature changes, combined with the reset force provided by the spring 61, to ensure that the slider assembly 6 can accurately respond to temperature changes, thereby dynamically adjusting the state of the oil return hole. In this way, under different working conditions, by controlling the opening and closing state of the oil return hole, it is ensured that the compressor obtains the optimal oil return volume, thereby optimizing its performance.

[0074] In one embodiment, a compressor is provided, including the aforementioned liquid separator. This design aims to improve the overall performance and efficiency of the compressor. By using the optimized liquid separator, oil and gas recovery and separation functions can be effectively achieved. Specifically, the liquid separator effectively removes liquid particles and other impurities from the oil and gas, preventing these substances from entering the compressor and causing damage or affecting its normal operation. This not only helps protect the compressor's key components from contamination and wear, but also improves the compressor's operating efficiency and reliability, extending its service life.

[0075] In one embodiment, an air conditioner is provided, including the aforementioned liquid separator. Air conditioners generate significant amounts of oil and vapor during operation, particularly in refrigeration cycles. Failure to effectively manage this oil and vapor can lead to decreased system efficiency, increased energy consumption, and even long-term damage to the equipment. Therefore, an air conditioner incorporating the aforementioned liquid separator can more efficiently manage the recovery and separation of oil and vapor during the refrigerant cycle.

[0076] For both applications (compressors and air conditioners), the key advantages of using the above-described liquid distributor design include:

[0077] By effectively separating the liquid components from the oil and gas, only pure gas enters the subsequent stage, thereby improving the heat exchange efficiency of the entire system.

[0078] Reduces wear and corrosion caused by liquids or other impurities entering the core parts of the system, helping to extend the service life of the equipment.

[0079] Since the risk of failure is reduced, the overall reliability of the system is enhanced and maintenance costs are reduced.

[0080] Efficient oil and gas separation helps reduce energy consumption and is also beneficial to environmental protection, in line with the current trend of energy conservation and emission reduction.

[0081] In summary, whether as part of a compressor or a component of an air conditioner, the application of the above-mentioned liquid distributor can significantly improve the performance and durability of related equipment, meeting the needs of modern industrial and household appliances for efficient, reliable and environmentally friendly solutions.

[0082] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A liquid dispenser, characterized in that: include: A straight pipe, a slider assembly, an upper oil return hole, and a lower oil return hole, wherein the upper oil return hole is located at the upper part of the straight pipe; The lower oil return hole is located at the lower part of the straight pipe, and the slider assembly is assembled on the straight pipe. The slider assembly slides along the outer wall of the straight pipe toward the lower part of the straight pipe or away from the lower part of the straight pipe according to the increase or decrease of the suction temperature, so that the slider assembly closes or opens the lower oil return hole.

2. A liquid dispenser according to claim 1, characterized in that: The slider assembly includes a slider and a shape memory driver. The slider is connected to the shape memory driver. Both ends of the shape memory driver are assembled on the straight tube. The shape memory driver passes through the slider. The slider slides along the straight tube.

3. A liquid dispenser according to claim 2, characterized in that: The outer end of the sliding block protrudes upward to form a convex block, and a mounting hole is provided on the convex block, and the shape memory driving member passes through the mounting hole.

4. A liquid dispenser according to claim 2, characterized in that: The shape memory driver includes a memory wire.

5. A liquid dispenser according to claim 2, characterized in that: The slider is provided with a notch, and the slider assembly further includes a limit screw, which is assembled in the notch.

6. A liquid dispenser according to claim 2, characterized in that: The slider assembly further includes an elastic member, one end of which is connected to the slider; and the other end of the elastic member is connected to the straight pipe via a fixing screw.

7. A liquid dispenser according to claim 6, characterized in that: A connecting hole is provided at one end of the sliding block away from the shape memory driving member, and the elastic member is connected to the connecting hole.

8. A liquid dispenser according to claim 7, characterized in that: The elastic member includes a spring.

9. A compressor, characterized in that Comprising the liquid dispenser according to any one of claims 1 to 8.

10. An air conditioner, characterized in that Comprising the liquid dispenser according to any one of claims 1 to 8.