An air suction structure, a distributor, a compressor and a control method

Abstract

The application discloses an air suction structure, a liquid separator, a compressor and a control method, and the air suction structure comprises a fixed air suction pipe, a first movable air suction pipe and a second movable air suction pipe, the first movable air suction pipe is movably arranged with the fixed air suction pipe and is communicated with the fixed air suction pipe, the second movable air suction pipe is movably arranged with the fixed air suction pipe and is communicated with the fixed air suction pipe, and the diameter of the gas inlet of the first movable air suction pipe is larger than the diameter of the gas inlet of the second movable air suction pipe. Since the diameters of the gas inlets of the first movable air suction pipe and the second movable air suction pipe are different, the relatively large diameter can increase the air suction amount and reduce the air suction resistance, thereby effectively solving the problem of insufficient air suction amount of the compressor during high-frequency operation, and the relatively small diameter can reduce the air suction amount and increase the air suction resistance, thereby effectively solving the problem of air suction belt liquid of the compressor during low-frequency operation.

Description

Technical Field

[0001] This invention relates to the field of compressor technology, and in particular to an intake structure, a liquid distributor, a compressor, and a control method. Background Technology

[0002] The distributor in a rotary compressor is a key component for the safe and reliable operation of the compressor, requiring a reasonable structural design to meet the compressor's liquid storage function. However, in practical applications, a key concern is that poor liquid storage can lead to excessive refrigerant liquid entering the compressor pump body, causing abnormal operation due to liquid buildup in the compressor suction. Secondly, excessive suction resistance within the compressor distributor can result in insufficient refrigerant gas entering the compressor pump body to participate in the refrigeration cycle, leading to a decrease in the compressor's performance in the air conditioning system.

[0003] There are relatively mature solutions to the problem of liquid buildup in compressor suction. These solutions mainly involve increasing the resistance of the distributor during suction or lengthening the suction path to solve the liquid buildup problem. Examples include Chinese patents with publication numbers as follows: CN113819687A, CN104215002A, CN111219317A, CN108954995A, CN107975986A, CN115823780A, etc. While these methods can effectively solve the problem of liquid buildup in suction, the increased suction resistance also reduces the amount of air entering the compressor. Especially during high-frequency operation, the reduced refrigerant intake significantly reduces the maximum operating capacity of the air conditioning system. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an air intake structure, a liquid distributor, a compressor, and a control method, which aims to effectively solve the problem of liquid accumulation during low-frequency air intake while also effectively solving the problem of insufficient air intake by the compressor during high-frequency operation of the air conditioner.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] In a first aspect, the present invention provides an air intake structure, comprising:

[0007] Fix the suction tube;

[0008] The first movable inhalation tube is movably disposed from the fixed inhalation tube and is connected to the fixed inhalation tube;

[0009] The second movable inhalation tube is movably disposed from the fixed inhalation tube and is connected to the fixed inhalation tube;

[0010] The diameter of the gas inlet of the first movable inhalation tube is larger than the diameter of the gas inlet of the second movable inhalation tube.

[0011] Furthermore, the fixed inhalation tube, the first movable inhalation tube, and the second movable inhalation tube are coaxially arranged, the first movable inhalation tube is axially movable relative to the fixed inhalation tube, and the second movable inhalation tube is axially movable relative to the fixed inhalation tube.

[0012] Furthermore, the first movable inhalation tube is located outside the fixed inhalation tube, and the second movable inhalation tube is located inside the fixed inhalation tube.

[0013] Furthermore, the first movable inhalation tube includes a sleeve portion and a flared tube portion. The sleeve portion is movably sleeved around the fixed inhalation tube, and the flared tube portion is coaxially arranged with the sleeve portion and located around the sleeve portion.

[0014] Furthermore, a first limiting structure is provided between the first movable inhalation tube and the fixed inhalation tube to prevent the first movable inhalation tube from detaching from the fixed inhalation tube, and a second limiting structure is provided between the second movable inhalation tube and the fixed inhalation tube to prevent the second movable inhalation tube from detaching from the fixed inhalation tube.

[0015] Furthermore, it also includes a motion drive structure for driving the first movable inhalation tube and the second movable inhalation tube to move relative to the fixed inhalation tube.

[0016] Secondly, the present invention also provides an adjustable liquid dispenser, including a liquid dispenser tank and the above-mentioned air intake structure. The liquid dispenser tank is provided with an air intake port, and the air intake structure is disposed inside the liquid dispenser tank. The gas inlet ends of the first movable air intake tube and the second movable air intake tube are both arranged close to the air intake port.

[0017] Furthermore, it also includes a pressure sensor and a temperature sensor, wherein the pressure sensor is used to detect the pressure data of the refrigerant in the outlet pipe, and the temperature sensor is used to detect the temperature data of the refrigerant in the outlet pipe.

[0018] Thirdly, the present invention also provides a compressor including the aforementioned adjustable distributor.

[0019] Fourthly, the present invention also provides a method for adjusting inhalation volume, comprising:

[0020] Collect pressure and temperature data of the refrigerant in the exhaust pipe;

[0021] The superheat of the refrigerant is calculated based on pressure and temperature data;

[0022] If the superheat of the refrigerant in the outlet pipe is greater than the set threshold, the position of the first movable intake pipe is adjusted so that the gas can be guided into the fixed intake pipe using the first movable intake pipe.

[0023] If the superheat of the refrigerant in the outlet pipe is less than the set threshold, the position of the second movable intake pipe is adjusted so that the gas is guided into the fixed intake pipe using the second movable intake pipe.

[0024] The beneficial effects of this invention compared to existing technologies are as follows: An air intake structure includes a fixed air intake pipe, a first movable air intake pipe, and a second movable air intake pipe. The first movable air intake pipe is movably disposed and connected to the fixed air intake pipe. The second movable air intake pipe is also movably disposed and connected to the fixed air intake pipe. The diameter of the gas inlet of the first movable air intake pipe is larger than the diameter of the gas inlet of the second movable air intake pipe. Because the gas inlet diameters of the first and second movable air intake pipes are different, the relatively larger diameter increases the air intake volume and reduces the air intake resistance, thus effectively solving the problem of insufficient air intake volume in compressors during high-frequency operation. Conversely, the relatively smaller diameter reduces the air intake volume and increases the air intake resistance, thus effectively solving the problem of liquid buildup during low-frequency operation of the compressor.

[0025] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other objectives, features and advantages of the present invention more obvious and understandable, preferred embodiments are described in detail below. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of an adjustable liquid dispenser provided in Embodiment 1 of the present invention (in non-working state);

[0028] Figure 2 This is a schematic diagram of an adjustable liquid dispenser provided in Embodiment 1 of the present invention (with the second movable suction tube in working state);

[0029] Figure 3 This is a schematic diagram of an adjustable liquid dispenser provided in Embodiment 1 of the present invention (the first movable suction tube is in the working state);

[0030] Figure 4This is a schematic diagram of the structure of the first movable suction tube in an adjustable liquid dispenser according to Embodiment 1 of the present invention;

[0031] Figure 5 This is a schematic diagram of the structure of a compressor provided in Embodiment 1 of the present invention;

[0032] Figure 6 This is a schematic diagram of an adjustable liquid dispenser provided in Embodiment 2 of the present invention;

[0033] Figure 7 This is a schematic diagram of an adjustable liquid dispenser provided in Embodiment 3 of the present invention.

[0034] Figure Labels

[0035] 1. Suction structure; 11. Fixed suction pipe; 111. Oil return hole; 12. First movable suction pipe; 121. Sleeve section; 122. Flared pipe section; 1221. Oil discharge hole; 13. Second movable suction pipe; 2. Adjustable separator; 21. Separator; 211. Suction port; 22. Air outlet pipe; 221. Pressure sensor; 222. Temperature sensor; 23. Filter support; 24. Filter screen; 3. Compressor pump body; 12A. First movable suction pipe; 12B. First movable suction pipe. Detailed Implementation

[0036] The technical solution of the present invention will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0039] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0040] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0041] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0042] Example 1

[0043] like Figures 1 to 4 As shown, this embodiment of the invention provides an air intake structure 1, including a fixed air intake tube 11, a first movable air intake tube 12, and a second movable air intake tube 13. The first movable air intake tube 12 is movably disposed from and connected to the fixed air intake tube 11; the second movable air intake tube 13 is movably disposed from and connected to the fixed air intake tube 11; wherein, the diameter of the gas inlet of the first movable air intake tube 12 is larger than the diameter of the gas inlet of the second movable air intake tube 13.

[0044] In actual use, the first movable suction pipe 12 and the second movable suction pipe 13 are switched to work with the fixed suction pipe 11 to guide the gas. Since the gas inlet diameters of the first movable suction pipe 12 and the second movable suction pipe 13 are different, the relatively larger diameter can introduce more gas to increase the suction volume and reduce the suction resistance, thereby effectively solving the problem of insufficient suction volume of the compressor during high-frequency operation. On the other hand, the relatively smaller diameter can reduce the introduction of gas to reduce the suction volume and increase the suction resistance, thereby effectively solving the problem of liquid being drawn into the suction during low-frequency operation of the compressor.

[0045] In one embodiment, the fixed inhalation tube 11, the first movable inhalation tube 12, and the second movable inhalation tube 13 are coaxially arranged. The first movable inhalation tube 12 is axially movable relative to the fixed inhalation tube 11, and the second movable inhalation tube 13 is axially movable relative to the fixed inhalation tube 11.

[0046] like Figures 1 to 3 As shown, the first movable suction pipe 12 is located outside the fixed suction pipe 11, and the second movable suction pipe 13 is located inside the fixed suction pipe 11. This coaxial arrangement saves space while meeting functional requirements.

[0047] By axially moving the first movable suction pipe 12 to an effective air intake position, the problem of insufficient air intake of the compressor during high-frequency operation can be effectively solved. Correspondingly, by axially moving the second movable suction pipe 13 to an effective air intake position, the problem of liquid buildup during low-frequency operation of the compressor can be effectively solved.

[0048] It should be noted that only one of the first movable inhalation tube 12 and the second movable inhalation tube 13 is in an effective air intake position. They should not be in an effective air intake position at the same time. That is, when the first movable inhalation tube 12 is in an effective air intake position, the second movable inhalation tube 13 is not in an effective air intake position. Similarly, when the second movable inhalation tube 13 is in an effective air intake position, the first movable inhalation tube 12 is not in an effective air intake position.

[0049] In one embodiment, both the fixed suction pipe 11 and the second movable suction pipe 13 are straight pipe structures. The straight pipe structure design is simple, facilitates the movement of the second movable suction pipe 13 relative to the fixed suction pipe 11, and at the same time reduces flow resistance and improves gas delivery efficiency.

[0050] In one embodiment, the first movable inhalation tube 12 includes a sleeve portion 121 and a flared tube portion 122. The sleeve portion 121 is movably sleeved around the fixed inhalation tube 11, and the flared tube portion 122 is coaxially arranged with the sleeve portion 121 and is located around the sleeve portion 121.

[0051] like Figure 4 As shown, the sleeve 121 has a cylindrical structure and is movably sleeved around the fixed suction pipe 11. The main function of the sleeve 121 is to provide fixed support and prevent the first movable suction pipe 12 from tilting or shaking during operation. To this end, the inner diameter of the sleeve 121 is precisely matched with the outer diameter of the fixed suction pipe 11 to ensure its stability during axial sliding. The flared pipe 122 is coaxially arranged outside the sleeve 121 and consists of upper and lower parts. The inner diameter of the upper part remains constant from top to bottom, providing a stable inlet diameter, while the inner diameter of the lower part gradually decreases from top to bottom. This upper and lower part structural design effectively increases the cross-sectional area for gas entry, allowing more gas to be drawn in, while reducing suction resistance and improving overall suction efficiency.

[0052] In one embodiment, the first movable suction pipe 12 is provided with an oil discharge hole 1221, and the fixed suction pipe 11 is provided with an oil return hole 111. The oil discharge hole 1221 and the oil return hole 111 are connected.

[0053] like Figure 1 As shown, the oil discharge hole 1221 is located on the flared section 122 of the first movable suction pipe 12. It is located in the lower part of the flared section 122 near the bottom. In actual use, the function of the oil discharge hole 1221 is to discharge the oil collected in the first movable suction pipe 12 to the bottom of the distributor, so that the refrigeration oil can return to the bottom of the compressor pump body 3 through the oil return hole 111.

[0054] In one embodiment, a first limiting structure is provided between the first movable inhalation tube 12 and the fixed inhalation tube 11 to prevent the first movable inhalation tube 12 from detaching from the fixed inhalation tube 11, and a second limiting structure is provided between the second movable inhalation tube 13 and the fixed inhalation tube 11 to prevent the second movable inhalation tube 13 from detaching from the fixed inhalation tube 11.

[0055] Specifically, the first limiting structure can be a ring-shaped, dot-shaped, or rectangular protrusion provided on the inner side of the first movable inhalation tube 12 and the outer side of the fixed inhalation tube 11. Specifically, a protrusion is provided on the inner side of the sleeve portion 121 of the first movable inhalation tube 12, and a protrusion is also provided on the outer side of the fixed inhalation tube 11 near its top. When the first movable inhalation tube 12 slides to the predetermined position of the fixed inhalation tube 11, the two ring-shaped protrusions abut against each other, thereby achieving a limiting effect.

[0056] Similarly, the design principle of the second limiting structure is similar to that of the first limiting structure. Specifically, a protrusion is provided on the outer side of the second movable air inhalation tube 13 near its bottom end, and a protrusion is also provided on the inner side of the fixed air inhalation tube 11 near its top end. When the second movable air inhalation tube 13 slides to the predetermined position of the fixed air inhalation tube 11, the two annular protrusions abut against each other, thereby achieving the limiting effect.

[0057] In one embodiment, the air intake structure 1 further includes a motion drive structure for driving the first movable air intake tube 12 and the second movable air intake tube 13 to move relative to the fixed air intake tube 11.

[0058] The moving drive structure can specifically be a hinge-pull type, a magnetic attraction / repulsion type, or a direct push-pull type. For example, using a magnetic attraction / repulsion design, a magnet is placed on the first movable air intake tube 12 with the N pole facing down, and a magnet is placed on the second movable air intake tube 13 with the S pole facing down. An electromagnetic coil is placed on the fixed air intake tube 11, located below the magnets on the first and second movable air intake tubes 12 and 13. When a positive current flows, the magnetic field generated by the electromagnetic coil has the N pole facing up; when a negative current flows, the magnetic field generated by the electromagnetic coil has the S pole facing up. When a positive current flows through the electromagnetic coil, its N pole faces up. According to the principle of like poles attracting and unlike poles repelling, the first movable air intake tube 12 will move upward, and the second movable air intake tube 13 will move downward, thus forming a state where the first movable air intake tube 12 is above and the second movable air intake tube 13 is below. Figure 3 The diagram shows a state where the first movable intake tube 12 is in the effective intake position to guide gas into the fixed intake tube 11. Similarly, when a negative current flows through the electromagnetic coil, the first movable intake tube 12 is below and the second movable intake tube 13 is above, i.e. Figure 2 In the state shown, the second movable intake tube 13 is in the effective intake position to guide gas into the fixed intake tube 11. Furthermore, when the electromagnetic coil is de-energized, the first movable intake tube 12 and the second movable intake tube 13 are not affected by the electromagnetic coil and, due to gravity, are both positioned downwards. Figure 1 In the state shown, neither the first movable suction tube 12 nor the second movable suction tube 13 is used to guide gas into the fixed suction tube 11.

[0059] The magnetic attraction / repulsion type moving drive structure described above enables rapid switching of the positions of the first movable air intake tube 12 and the second movable air intake tube 13 using a linkage method. This eliminates the need for two sets of structures to control the movement of the first movable air intake tube 12 and the second movable air intake tube 13, thus simplifying the structure.

[0060] This invention also provides an adjustable liquid dispenser 2, including a liquid dispenser 21, a filter support 23, a filter 24, and the aforementioned air intake structure 1. The top of the liquid dispenser 21 is provided with an air intake port 211 for gas to enter and exit. The filter support 23, the filter 24, and the air intake structure 1 are disposed inside the liquid dispenser 21. The gas inlet ends of the first movable air intake pipe 12 and the second movable air intake pipe 13 are arranged close to the air intake port 211.

[0061] like Figures 1 to 3As shown, the filter support 23 is fixed inside the separator 21 to ensure that the filter 24 can be stably fixed inside the separator 21. The filter 24 is installed on the filter support 23 and located below the air intake 211. The air intake structure 1 is installed below the air intake 211. The gas inlet end of the first movable air intake pipe 12 moves towards the air intake 211 to achieve an effective air intake position for operation. Similarly, the gas inlet end of the second movable air intake pipe 13 moves towards the air intake 211 to achieve an effective air intake position for operation.

[0062] In one embodiment, the adjustable dispenser 2 further includes an air outlet pipe 22, which is connected to the fixed suction pipe 11.

[0063] like Figure 1 , Figure 5 As shown, the outlet pipe 22 passes through the bottom of the liquid separator 21. The part of the outlet pipe 22 inside the liquid separator 21 is connected to the lower end of the fixed suction pipe 11. The part of the outlet pipe 22 inside the liquid separator 21 is connected to the compressor pump body 3. The gas entering from the suction port 211 first passes through the filter screen 24, and then is guided to the fixed suction pipe 11 through the first movable suction pipe 12 or the second movable suction pipe 13, and then transported to the compressor pump body 3 through the outlet pipe 22.

[0064] In one embodiment, the adjustable distributor 2 further includes a pressure sensor 221 and a temperature sensor 222. The pressure sensor 221 is used to detect the pressure data of the refrigerant in the gas pipe 22, and the temperature sensor 222 is used to detect the temperature data of the refrigerant in the gas pipe 22.

[0065] By monitoring the pressure and temperature data in real time, the superheat of the refrigerant entering the compressor pump body 3 at the outlet pipe 22 of the adjustable distributor 2 can be calculated. The superheat can be used to determine whether to switch the first movable suction pipe 12 or the second movable suction pipe 13 to guide the gas.

[0066] like Figure 5 As shown, the pressure sensor 221 and the temperature sensor 222 are located at the end of the outlet pipe 22, that is, near the connection between the outlet pipe 22 and the compressor pump body 3, so as to obtain the superheat of the refrigerant input to the compressor pump body 3 more accurately.

[0067] like Figure 5 As shown, this embodiment of the invention also provides a compressor, including the aforementioned adjustable distributor 2, with the end of the outlet pipe 22 of the adjustable distributor 2 connected to the compressor pump body 3. Apart from the aforementioned adjustable distributor 2, the remaining structure of the compressor is the same as that in the prior art, and will not be described in detail here.

[0068] This invention also provides a method for adjusting inhalation volume, comprising the following steps: S10-S40.

[0069] S10. Collect the pressure and temperature data of the refrigerant in the outlet pipe 22.

[0070] Specifically, pressure sensor 221 and temperature sensor 222 installed at the end of the outlet pipe 22 are used to collect refrigerant pressure and temperature data in real time. The collection frequency can be set according to the requirements, such as once per second to ensure real-time performance.

[0071] S20. Calculate the superheat of the refrigerant based on the pressure and temperature data.

[0072] The superheat here is defined as the difference between the actual temperature of the refrigerant and its saturation temperature at the same pressure. The calculation process is as follows: By referring to the pressure-temperature relationship table of the refrigerant, the saturation temperature at the corresponding pressure is determined.

[0073] Calculate superheat: Superheat = Actual temperature - Saturation temperature.

[0074] S30. If the superheat of the refrigerant in the outlet pipe 22 is greater than the set threshold, the position of the first movable intake pipe 12 is adjusted so as to guide the gas into the fixed intake pipe 11 using the first movable intake pipe 12.

[0075] The threshold can be a pre-set safety threshold. For example, in this embodiment, the threshold is set to 1°C. The position of the first active suction pipe 12 and the second active suction pipe 13 is adjusted by determining whether the compressor superheat is greater than 1°C.

[0076] When the calculated superheat is greater than 1°C, it indicates that the distributor is in a state of superheated suction at the suction port 211 of the compressor pump body 3. As much refrigerant as possible from the suction port 211 needs to be delivered to the compressor pump body 3. Therefore, the first movable suction pipe 12 is adjusted to an effective intake position via the moving drive structure. Figure 3 The position shown is adjusted to increase the intake volume and reduce intake resistance, thereby effectively solving the problem of insufficient intake volume of the compressor during high-frequency operation.

[0077] S40. If the superheat of the refrigerant in the outlet pipe 22 is less than the set threshold, adjust the position of the second movable intake pipe 13 so as to guide the gas into the fixed intake pipe 11 using the second movable intake pipe 13.

[0078] When the superheat is less than 1°C, it indicates that the refrigerant intake may be excessive. The compressor operation needs to be optimized by reducing the intake volume. Therefore, the second movable intake pipe 13 is adjusted to the effective intake position via the movable drive structure. Figure 2The position shown is adjusted to reduce the intake volume and increase the intake resistance, thereby effectively solving the problem of liquid buildup during low-frequency operation of the compressor.

[0079] Example 2

[0080] like Figure 6 As shown, the difference between this embodiment and Embodiment 1 lies in the structure of the first movable intake tube 12A. Specifically, the flared section of the first movable intake tube 12A is roughly trapezoidal in shape, wider at the top and narrower at the bottom, and the diameter of the gas inlet at the upper end of the flared section is larger than the diameter of the gas inlet at the second movable intake tube.

[0081] Example 3

[0082] like Figure 7 As shown, the difference between this embodiment and Embodiment 1 lies in the structure of the first movable intake tube 12B. Specifically, the flared section of the first movable intake tube 12B is approximately T-shaped, and the diameter of the gas inlet at the upper end of the flared section is larger than the diameter of the gas inlet at the second movable intake tube.

[0083] 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 these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A method for adjusting the intake volume of a compressor, characterized in that, The compressor includes an adjustable distributor, the adjustable distributor includes a suction structure, the suction structure includes: Fix the suction tube; The first movable inhalation tube is movably disposed from the fixed inhalation tube and is connected to the fixed inhalation tube; The second movable inhalation tube is movably disposed from the fixed inhalation tube and is connected to the fixed inhalation tube; The diameter of the gas inlet of the first movable inhalation tube is larger than the diameter of the gas inlet of the second movable inhalation tube; the fixed inhalation tube, the first movable inhalation tube, and the second movable inhalation tube are coaxially arranged, the first movable inhalation tube is axially movable relative to the fixed inhalation tube, and the second movable inhalation tube is axially movable relative to the fixed inhalation tube; the first movable inhalation tube is located outside the fixed inhalation tube, and the second movable inhalation tube is located inside the fixed inhalation tube; The method includes: Collect pressure and temperature data of the refrigerant in the exhaust pipe; The superheat of the refrigerant is calculated based on pressure and temperature data; If the superheat of the refrigerant in the outlet pipe is greater than the set threshold, the position of the first movable intake pipe is adjusted so that the gas can be guided into the fixed intake pipe using the first movable intake pipe. If the superheat of the refrigerant in the outlet pipe is less than the set threshold, the position of the second movable intake pipe is adjusted so that the gas is guided into the fixed intake pipe using the second movable intake pipe.

2. The method for adjusting the intake volume of a compressor according to claim 1, characterized in that, The first movable inhalation tube includes a sleeve portion and a flared tube portion. The sleeve portion is movably sleeved around the fixed inhalation tube, and the flared tube portion is coaxially arranged with the sleeve portion and located around the sleeve portion.

3. The method for adjusting the intake volume of a compressor according to claim 1, characterized in that, A first limiting structure is provided between the first movable inhalation tube and the fixed inhalation tube to prevent the first movable inhalation tube from detaching from the fixed inhalation tube, and a second limiting structure is provided between the second movable inhalation tube and the fixed inhalation tube to prevent the second movable inhalation tube from detaching from the fixed inhalation tube.

4. The method for adjusting the intake volume of a compressor according to claim 1, characterized in that, The air intake structure further includes a motion drive structure, which is used to drive the first movable air intake tube and the second movable air intake tube to move relative to the fixed air intake tube.

5. The method for adjusting the intake volume of a compressor according to claim 1, characterized in that, The adjustable liquid dispenser includes a liquid dispenser tank, the liquid dispenser tank is provided with an air intake port, the air intake structure is provided inside the liquid dispenser tank, and the gas inlet ends of the first movable air intake pipe and the second movable air intake pipe are both arranged close to the air intake port.

6. The method for adjusting the intake volume of a compressor according to claim 1, characterized in that, The adjustable distributor also includes a pressure sensor and a temperature sensor. The pressure sensor is used to detect the pressure data of the refrigerant in the outlet pipe, and the temperature sensor is used to detect the temperature data of the refrigerant in the outlet pipe.

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