Gas-liquid separator and compressor

Abstract

The embodiment of the present application provides a kind of gas-liquid separator and compressor, the gas-liquid separator is by setting back liquid amount adjusting device on oil return hole to adjust the opening degree (opening) of oil return hole to adapt to the refrigerant demand of gas-liquid separator under different operating conditions.Back liquid amount adjusting device includes temperature sensing adjusting part and movable part, temperature sensing adjusting part is driven movable part according to the change of temperature in oil return hole activity, to adjust the opening of oil return hole, so that the back liquid amount of liquid refrigerant can be adjusted according to the actual demand of refrigeration system, effectively avoid the problem that a large amount of liquid refrigerant enters compressor when gas-liquid separator runs at low frequency, while ensuring that gas-liquid separator has enough refrigerant flow when running at high frequency, to prevent the decline of refrigerating capacity.

Description

Technical Field

[0001] This invention relates to the field of compressor technology, and in particular to a gas-liquid separator and a compressor. Background Technology

[0002] The air conditioning system is equipped with a gas-liquid separator for separating gaseous and liquid refrigerant. The liquid refrigerant is stored in the cavity of the gas-liquid separator, and the gas outlet pipe of the gas-liquid separator is equipped with an oil return hole for directing the liquid refrigerant to the compressor.

[0003] However, the amount of refrigerant required by the compressor varies depending on the operating mode of the air conditioning system. Consequently, the size of the oil return hole also varies. When the air conditioning system operates at low frequency, due to the small cooling demand, the liquid refrigerant does not completely evaporate in the evaporator, resulting in the liquid refrigerant not being completely converted into gaseous refrigerant. The unconverted liquid refrigerant will be stored in the gas-liquid separator. If the oil return hole is designed to be too large, a large amount of liquid refrigerant will flow into the compressor from the oil return hole, causing the oil film to be diluted. This prevents other components inside the compressor from adhering effectively, leading to malfunction and preventing the compressor from operating normally. When the air conditioning system operates at high frequency, the compressor requires more refrigerant flow. If the oil return hole is designed to be too small, it will result in insufficient refrigerant flow and reduced air conditioning cooling efficiency. Existing gas-liquid separators cannot effectively adjust the size of the oil return hole according to the operating mode. Summary of the Invention

[0004] This invention provides a gas-liquid separator and a compressor, which aims to solve the problem that existing gas-liquid separators cannot effectively adjust the size of the oil return hole according to the operating mode.

[0005] This invention provides a gas-liquid separator, including a separator housing with a gas-liquid separation chamber and an outlet pipe disposed in the gas-liquid separation chamber. The outlet pipe is provided with an oil return hole. The gas-liquid separator also includes a liquid return volume adjustment device, which includes a temperature sensing adjustment element disposed in the gas-liquid separation chamber and a movable element disposed on the outlet pipe at a position corresponding to the oil return hole. The temperature sensing adjustment element is connected to the movable element, and the temperature sensing adjustment element can drive the movable element to move according to the temperature change in the gas-liquid separation chamber to adjust the opening of the oil return hole.

[0006] Specifically, the temperature-sensing regulating component includes a temperature-sensing expansion component, which has an expansion cavity filled with a temperature-sensing medium that expands or contracts according to temperature changes; or, the temperature-sensing regulating component includes a thermally sensitive bulb that adjusts pressure according to temperature changes.

[0007] Specifically, the other end of the temperature-sensing adjustment component is connected to the movable component, or the other end of the temperature-sensing adjustment component is connected to the movable component via a connecting assembly.

[0008] Specifically, the temperature-sensing adjustment element is arranged around the air outlet pipe, with one end fixed to the air outlet pipe and the other end movably connected to the movable element.

[0009] Specifically, the liquid return volume regulating device further includes a regulating component housing surrounding the outlet pipe. The regulating component housing has a receiving cavity for installing the temperature sensing regulating component. One end of the temperature sensing regulating component is fixedly connected to the regulating component housing. The regulating component housing has an outlet communicating with the receiving cavity. The other end of the temperature sensing regulating component is connected to a movable component through the outlet.

[0010] Specifically, the return liquid volume regulating device further includes an arc-shaped connecting plate, which is fixedly disposed outside the air outlet pipe. The regulating component housing is fixed to the arc-shaped connecting plate. The arc-shaped connecting plate is provided with an oil return hole channel communicating with the oil return hole. The movable component is slidably disposed on the arc-shaped connecting plate. The other end of the temperature sensing regulating component can drive the movable component to slide on the arc-shaped connecting plate to adjust the opening of the oil return hole channel.

[0011] Specifically, the connecting assembly includes a connecting pipe, a hydraulic component, and a connecting rod. One end of the connecting pipe is connected to the temperature sensing adjustment component, and the other end of the connecting pipe is connected to one end of the hydraulic component. The other end of the hydraulic component is connected to one end of the connecting rod, and the other end of the connecting rod is connected to the movable component.

[0012] Specifically, the hydraulic component includes a hydraulic body, a hydraulic diaphragm, and a piston. The hydraulic diaphragm is disposed in the hydraulic body. One end of the hydraulic body is connected to the other end of the connecting pipe, the other end of the hydraulic body is connected to one end of the piston, and the other end of the piston is connected to one end of the connecting rod.

[0013] Specifically, the return liquid volume regulating device further includes a fixed base, which is installed on the air outlet pipe. The movable part is slidably connected to the fixed base. The fixed base is provided with a flow hole communicating with the oil return hole. The temperature sensing regulating component can drive the movable part to slide on the fixed base through the connecting assembly to adjust the opening of the flow hole.

[0014] Specifically, the movable component includes a base and a movable component body. The base is provided with a connecting hole that communicates with and corresponds to the oil return hole. Multiple movable component bodies are provided, and the multiple movable component bodies are connected to the base. Each movable component body can move around the center of the connecting hole. The temperature sensing adjustment component is connected to at least one of the movable component bodies. The temperature sensing adjustment component can drive at least one of the movable component bodies to move and move the remaining movable component bodies to adjust the opening of the oil return hole around the center of the connecting hole.

[0015] Specifically, each of the movable parts is arranged in a ring around the base, and each movable part is provided with a first limiting part. The base is provided with a plurality of second limiting parts corresponding to the positions of the first limiting parts. The first limiting parts and the second limiting parts are slidably connected, and the plurality of second limiting parts are arranged in a circumferentially inclined manner.

[0016] This invention also provides a compressor, including the gas-liquid separator described above.

[0017] This invention provides a gas-liquid separator and a compressor. The gas-liquid separator adjusts the opening degree of the oil return hole by incorporating a liquid return volume regulating device to adapt to the refrigerant requirements of the gas-liquid separator under different operating conditions. The liquid return volume regulating device includes a temperature-sensing regulating element and a movable element. The temperature-sensing regulating element moves the movable element on the oil return hole according to temperature changes, thereby adjusting the opening degree of the oil return hole. This allows the liquid refrigerant return volume to be adjusted according to the actual needs of the refrigeration system, effectively preventing excessive liquid return volume during low-frequency operation, which would lead to a large amount of liquid refrigerant entering the compressor. Simultaneously, it ensures sufficient refrigerant flow during high-frequency operation, preventing a decrease in cooling capacity. Attached Figure Description

[0018] 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.

[0019] Figure 1 An internal diagram of the gas-liquid separator provided in an embodiment of the present invention, excluding the return liquid volume adjustment device;

[0020] Figure 2 Another internal view of the gas-liquid separator provided in an embodiment of the present invention, excluding the return liquid volume adjustment device;

[0021] Figure 3 This is a schematic diagram of the gas-liquid separator provided in the first embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the gas-liquid separator provided in the second embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the gas-liquid separator provided in the third embodiment of the present invention;

[0024] Figure 6 This is another structural schematic diagram of the gas-liquid separator provided in the third embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of the structure of the liquid return volume regulating device provided in the first embodiment of the present invention;

[0026] Figure 8 This is a schematic diagram of the structure of the return liquid volume regulating device provided in the second embodiment of the present invention;

[0027] Figure 9 This is a schematic diagram of the structure of the liquid return volume regulating device provided in the third embodiment of the present invention;

[0028] Figure 10 This is another schematic diagram of the return liquid volume regulating device provided in the third embodiment of the present invention;

[0029] Figure 11 This is another structural schematic diagram of the liquid return volume adjustment device provided in the third embodiment of the present invention.

[0030] Explanation of the markings in the image:

[0031] 1. Gas-liquid separator; 11. Separator housing; 12. Gas-liquid separation chamber; 13. Gas outlet pipe; 131. Oil return hole; 14. Liquid return volume adjustment device; 141. Temperature sensing adjustment component; 1411. Temperature sensing expansion component; 1412. Thermal sensing bulb; 142. Moving component; 1421. Base; 14211. Connecting hole; 14212. Second limiting part; 1422. Moving component body; 14221. First limiting part; 143. Connecting assembly; 1431. Connecting pipe; 1432. Hydraulic component; 14321. Hydraulic body; 14322. Hydraulic diaphragm; 14323. Piston; 1433. Connecting rod; 144. Adjustment component housing; 1441. Outlet; 145. Arc-shaped connecting plate; 1451. Oil return hole channel; 146. Fixed seat; 1461. Flow hole. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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.

[0033] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0034] 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 invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0035] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0036] Please see Figure 1-11 This invention provides a gas-liquid separator 1, including a separator housing 11 with a gas-liquid separation chamber 12 and an outlet pipe 13 disposed in the gas-liquid separation chamber 12. An oil return hole 131 is provided on the outlet pipe 13. The gas-liquid separator 1 also includes a return liquid volume adjustment device 14. The return liquid volume adjustment device 14 includes a temperature sensing adjustment element 141 disposed in the gas-liquid separation chamber 12 and a movable element 142 disposed on the outlet pipe 13 at a position corresponding to the oil return hole 131. The temperature sensing adjustment element 141 is connected to the movable element 142. The temperature sensing adjustment element 141 can drive the movable element 142 to move according to the temperature change in the gas-liquid separation chamber 12 to adjust the opening of the oil return hole 131.

[0037] In this embodiment, the opening of the oil return hole 131 is adjusted by setting a liquid return volume adjustment device 14 on the oil return hole 131 to adapt to the refrigerant demand of the gas-liquid separator under different operating conditions. The operating conditions of the gas-liquid separator 1 include high-frequency operation and low-frequency operation. When operating at high frequency, the internal temperature of the gas-liquid separator is generally between 0 and 8°C. When operating at low frequency, the internal temperature of the gas-liquid separator is generally between 18 and 25°C. Specifically, the liquid return volume regulating device 14 includes a temperature sensing regulating element 141 and a movable element 142. Under different operating conditions, the temperature of the gas-liquid separation chamber 12 of the gas-liquid separator 1 changes. The temperature sensing regulating element 141 drives the movable element 142 to move on the oil return hole 131 according to the temperature change, thereby adjusting the opening of the oil return hole 131. This allows the liquid return volume of the liquid refrigerant to be adjusted according to the actual needs of the refrigeration system, effectively avoiding the problem of excessive liquid return volume during low-frequency operation of the gas-liquid separator 1, which would lead to a large amount of liquid refrigerant entering the compressor. Simultaneously, it ensures sufficient refrigerant flow during high-frequency operation of the gas-liquid separator 1, preventing a decrease in cooling capacity. In this embodiment, by automatically adjusting the opening of the oil return hole 131 through the liquid return volume regulating device 14, the overall efficiency of the refrigeration system can be improved. It can reduce the backflow of liquid refrigerant when the cooling demand is low, avoiding potential damage to the compressor from liquid refrigerant. Furthermore, it can increase the liquid return volume when the cooling demand is high, thereby ensuring the cooling effect of the refrigeration system.

[0038] Specifically, such as Figure 7-8 As shown, the temperature-sensing regulating member 141 includes a temperature-sensing expansion member 1411, in which an expansion member cavity is provided, and the expansion member cavity is filled with a temperature-sensing medium that expands or contracts according to temperature changes; or, the temperature-sensing regulating member 141 includes a thermally sensitive bulb 1412 that adjusts pressure according to temperature changes.

[0039] In this embodiment, the temperature-sensing regulating component 141 includes two main structures: a temperature-sensing expansion component 1411 and a thermally sensing bulb 1412. The expansion cavity of the temperature-sensing expansion component 1411 is filled with a temperature-sensing medium that expands or contracts according to temperature changes. The temperature-sensing medium includes a liquid medium (such as Freon or other low-boiling-point liquids) or a gaseous medium (such as nitrogen, helium, etc.). The temperature-sensing medium expands or contracts according to temperature changes within the gas-liquid separation chamber 12. More specifically, the temperature-sensing expansion component 1411 is directly connected to the movable component 142. Furthermore, the temperature-sensitive expansion member 1411 expands when the temperature is high and contracts when the temperature is low, thereby driving the movable member 142 to move and adjust the size of the oil return hole 131; when the heat-sensing bulb 1412 is connected to the movable member 142, a transmission device (subsequent connecting component 143) needs to be set between the heat-sensing bulb 1412 and the movable member 142. The heat-sensing bulb 1412 adjusts the pressure according to the temperature change, so that the movable member 142 moves in the same direction as the transmission device under the action of the transmission device, thereby adjusting the size of the oil return hole 131.

[0040] Furthermore, the temperature inside the gas-liquid separation chamber 12 varies under different operating conditions. Therefore, when the gas-liquid separator switches operating states, the temperature inside the gas-liquid separation chamber 12 changes, and the required size of the oil return hole varies accordingly. For example, when the gas-liquid separator 1 operates at low frequency, the temperature inside the gas-liquid separation chamber 12 is higher. At this time, due to the low cooling capacity demand of the refrigeration system and incomplete evaporation, the liquid refrigerant needs to be stored in the gas-liquid separator, so the oil return hole 131 should be set to a smaller size. When the gas-liquid separator 1 operates at high frequency, the temperature inside the gas-liquid separation chamber 12 is lower. At this time, the refrigeration system requires more refrigerant flow, so the oil return hole 131 should be set to a larger size. In this embodiment, the size of the oil return hole 131 can be adjusted according to the different operating states of the gas-liquid separator 1 using either the temperature-sensing expansion element 1411 or the thermal sensing bulb 1412.

[0041] Specifically, such as Figure 3-4 As shown, the other end of the temperature-sensing adjustment element 141 is connected to the movable element 142, or the other end of the temperature-sensing adjustment element 141 is connected to the movable element 142 through the connecting assembly 143.

[0042] In this embodiment, the temperature-sensing adjustment component 141 has two connection methods for the movable component 142. The first connection method is a direct connection, that is, the other end of the temperature-sensing adjustment component 141 is connected to the movable component 142. In this case, the temperature-sensing adjustment component 141 is a temperature-sensing expansion component 1411. The temperature-sensing expansion component 1411 can expand or contract according to the temperature change of the gas-liquid separation chamber 12, thereby driving the movable component 142 to move to realize the adjustment of the oil return hole 131. In order to facilitate the adjustment of the oil return hole 131, in the first connection method, the temperature-sensing expansion component 1411 is usually installed on the gas outlet pipe 13. However, the installation of the temperature-sensing expansion component 1411 on the gas outlet pipe 13 increases the weight of the gas outlet pipe 13 and at the same time moves the center of gravity of the gas outlet pipe 13 upward, which makes it easier to place The vibration of the large exhaust pipe 13 is addressed by the second connection method, which improves upon the first method. The movable part 142 and the temperature-sensing adjustment part 141 are connected via a connecting assembly 143. In this case, the temperature-sensing adjustment part 141 is a thermal temperature sensor 1412, which can be installed at any position within the gas-liquid separation chamber 12 and connected to the movable part 142 via the connecting assembly 143. The thermal temperature sensor 1412 adjusts the pressure according to temperature changes, causing the movable part 142 to move in the same direction as the connecting assembly 143 under its influence, thereby adjusting the oil return hole 131. This second connection method solves the problem of amplifying the vibration of the gas-liquid separator 1 when the temperature-sensing adjustment part 141 is directly installed on the exhaust pipe 13.

[0043] Specifically, such as Figure 3 and Figure 7As shown, the temperature sensing adjustment element 141 is arranged around the air outlet pipe 13, with one end fixed to the air outlet pipe 13 and the other end movably connected to the movable element 142.

[0044] In this embodiment, the temperature-sensing adjustment component 141 is a temperature-sensing expansion component 1411. In order for the movable component 142 to smoothly adjust the oil return hole 131, it is preferable to surround the temperature-sensing expansion component 1411 on the air outlet pipe 13, and fix one end of the temperature-sensing expansion component 1411 on the air outlet pipe 13, and movably connect the other end to the movable component 142, thereby achieving a stable connection between the temperature-sensing expansion component 1411 and the air outlet pipe 13, while not affecting the movement of the movable component 142 driven by the temperature-sensing expansion component 1411 when it expands or contracts, thereby realizing the adjustment of the oil return hole 131.

[0045] Specifically, such as Figure 7 As shown, the return liquid volume regulating device 14 also includes a regulating component housing 144 surrounding the outlet pipe 13. The regulating component housing 144 has a receiving cavity for installing the temperature sensing regulating component 141. One end of the temperature sensing regulating component 141 is fixedly connected to the regulating component housing 144. The regulating component housing 144 has an outlet 1441 communicating with the receiving cavity. The other end of the temperature sensing regulating component 141 is connected to the movable component 142 through the outlet 1441.

[0046] In order to stably install the temperature sensing regulator 141 on the outlet pipe 13, the aforementioned embodiment directly installs the temperature sensing regulator 141 on the outlet pipe 13. This makes it easy for the temperature sensing regulator 141 to be displaced or damaged due to external factors during the operation of the gas-liquid separator 1. Unlike the aforementioned embodiment, this embodiment installs the temperature sensing regulator 141 on the outlet pipe 13 through the regulator housing 144. This is because the regulator housing 144 can provide a stable installation base for the temperature sensing regulator 141, ensuring that it is not easily displaced or damaged during operation. Specifically, the temperature-sensing regulating element 141 is installed in the receiving cavity of the regulating element housing 144, and one end of the receiving cavity is open (i.e., the regulating element housing 144 is provided with an outlet 1441 communicating with the receiving cavity). Then, the regulating element housing 144 and the temperature-sensing regulating element 141 located in the receiving cavity are arranged around the gas outlet pipe 13. Under the temperature change of the gas-liquid separation chamber 12, the temperature-sensing regulating element 141 expands out of the outlet 1441 or contracts into the receiving cavity, thereby driving the movable element 142 to move in the direction of expansion or contraction, thereby adjusting the oil return hole 131.

[0047] Specifically, such as Figure 7As shown, the return liquid volume regulating device 14 also includes an arc-shaped connecting plate 145, which is fixedly installed outside the air outlet pipe 13. The regulating component housing 144 is fixed on the arc-shaped connecting plate 145. The arc-shaped connecting plate 145 is provided with an oil return hole channel 1451 that communicates with the oil return hole 131. The movable component 142 is slidably installed on the arc-shaped connecting plate 145. The other end of the temperature sensing regulating component 141 can drive the movable component 142 to slide on the arc-shaped connecting plate 145 to adjust the opening of the oil return hole channel 1451.

[0048] In this embodiment, since the movable component 142 needs to reciprocate in the oil return hole 131 to adjust its size, sufficient space needs to be reserved for the movable component 142. Therefore, the adjusting component housing 144 in the aforementioned embodiment is typically configured as an arc-shaped housing. To make the temperature-sensing adjusting component 141 more tightly connected to the air outlet pipe 13, an arc-shaped connecting plate 145 is provided between the two ends of the arc-shaped housing. The arc-shaped connecting plate 145 and the arc-shaped housing form a ring structure and fit against the outer wall of the air outlet pipe 13, thereby achieving stable installation. Moreover, the arc-shaped connecting plate 145 covers the oil return hole. To ensure the normal operation of the oil return hole 131, an oil return hole channel 1451 communicating with the oil return hole 131 is provided on the arc-shaped connecting plate 145 corresponding to the oil return hole 131. At this time, the movable part 142 moves on the oil return hole channel 1451 under the action of the temperature-sensing adjustment part 141 to adjust the size of the oil return hole channel 1451, thereby adjusting the size of the oil return hole 131. Specifically, the temperature-sensing adjustment part 141 is a temperature-sensing expansion part 1411. The gas inside the expansion part adjusts its expansion degree according to different temperatures, thereby adjusting the size of the oil return hole channel 1451. The oil return hole 131 has two shapes; the first is a circular hole (…). Figure 1 As shown), the second type is an oblong hole (as shown). Figure 2 As shown in the figure, in specific implementation, the return oil hole channel 1451 and the subsequent connecting hole 14211 and flow hole 1461 are specifically set according to the shape of the return oil hole 131.

[0049] In practical implementation, as the internal temperature of the gas-liquid separator 1 gradually increases, the temperature-sensing regulating element 141 expands due to heat, pushing the movable element 142 to block the oil return hole channel 1451 along the expansion direction. This reduces the fluid flow into the oil return hole 131, and the liquid refrigerant is stored in the gas-liquid separation chamber 12. Until the gas-liquid separator reaches its highest temperature, the movable element 142 cannot move to the edge of the oil return hole channel 1451 on the far side, meaning the movable element 142 cannot completely block the oil return hole 131. If it were completely blocked, it would cause the refrigerant oil to accumulate in the gas-liquid separator. In cavity 12, this leads to compressor wear due to lack of oil. When the internal temperature of the gas-liquid separator 1 gradually decreases, the temperature sensing adjustment element 141 contracts due to the cold, pulling the movable element 142 to open the oil return hole channel 1451 along the contraction direction, increasing the fluid flow into the oil return hole 131. When the gas-liquid separator temperature is at its lowest, there is no movable element 142 blocking the oil return hole channel 1451. During normal operation, the movable element 142 is positioned at half the length of blocking the oil return hole channel 1451, and the channel area of ​​the oil return hole channel 1451 should be less than 6.25 mm². 2 .

[0050] Specifically, such as Figure 8 As shown, the connecting assembly 143 includes a connecting pipe 1431, a hydraulic component 1432, and a connecting rod 1433. One end of the connecting pipe 1431 is connected to the temperature sensing adjustment component 141, and the other end of the connecting pipe 1431 is connected to one end of the hydraulic component 1432. The other end of the hydraulic component 1432 is connected to one end of the connecting rod 1433, and the other end of the connecting rod 1433 is connected to the movable component 142.

[0051] In this embodiment, the temperature sensing adjustment component 141 is a heat sensor 1412. The heat sensor 1412 is connected to the hydraulic component 1432 through a connecting pipe 1431. The heat sensor 1412 can adjust the pressure under temperature changes and apply the adjusted pressure to the hydraulic component 1432 through the connecting pipe 1431, causing the hydraulic component 1432 to expand or contract under pressure changes. The connecting rod 1433 drives the movable component 142 to move in the direction of expansion or contraction, thereby adjusting the size of the oil return hole 131.

[0052] Specifically, such as Figure 8 As shown, the hydraulic component 1432 includes a hydraulic body 14321, a hydraulic diaphragm 14322, and a piston 14323. The hydraulic diaphragm 14322 is disposed in the hydraulic body 14321. One end of the hydraulic body 14321 is connected to the other end of the connecting pipe 1431. The other end of the hydraulic body 14321 is connected to one end of the piston 14323. The other end of the piston 14323 is connected to one end of the connecting rod 1433.

[0053] In this embodiment, in order to better control the movement of the moving part 142 and reduce the vibration of the gas-liquid separator 1, a specific hydraulic component 1432 is set to reduce the vibration of the temperature sensing regulating component 141 during expansion or contraction. When the gas-liquid separator 1 is running at high frequency, the inside of the gas-liquid separator 1 cools down, the gas in the thermal sensing bulb 1412 contracts, the hydraulic diaphragm 14322 is concave inward, so that the hydraulic body 14321 retracts the liquid, the piston 14323 is pulled inward by the liquid and contracts, the moving part 142 moves in the direction of the hydraulic component 1432, thereby pulling the connecting rod 1433 to release the return oil hole 131, increasing the fluid flow into the return oil hole 131 and increasing the high-frequency refrigerant flow.

[0054] Specifically, such as Figure 8 As shown, the return liquid volume regulating device 14 also includes a fixed base 146, which is installed on the air outlet pipe 13. The movable part 142 is slidably connected to the fixed base 146. The fixed base 146 is provided with a flow hole 1461 that communicates with the oil return hole 131. The temperature sensing regulating part 141 can drive the movable part 142 to slide on the fixed base 146 through the connecting component 143 to adjust the opening of the flow hole 1461.

[0055] In this embodiment, the fixed base 146 is installed on the air outlet pipe 13 at the position corresponding to the oil return hole 131, and a flow hole 1461 communicating with the oil return hole 131 is provided on the mounting surface of the fixed base 146 and the air outlet pipe 13. The movable member 142 is slidably connected to the fixed base 146 and can slide on the fixed base 146 under the drive of the temperature sensing adjustment member 141 and the connecting component 143 to adjust the opening of the flow hole 1461, thereby adjusting the opening of the oil return hole 131.

[0056] Specifically, such as Figure 9-11 As shown, the movable component 142 includes a base 1421 and a movable component body 1422. The base 1421 is provided with a connecting hole 14211 that communicates with and corresponds to the oil return hole 131. Multiple movable component bodies 1422 are provided, and multiple movable component bodies 1422 are connected to the base 1421. Each movable component body 1422 can move around the center of the connecting hole 14211. The temperature sensing adjustment component 141 is connected to at least one of the movable component bodies 1422. The temperature sensing adjustment component 141 can drive at least one of the movable component bodies 1422 to move and move the other movable component bodies 1422 to adjust the opening of the oil return hole 131 around the center of the connecting hole 14211.

[0057] In the aforementioned embodiment, the movable component 142 mainly moves along the direction of expansion or contraction. In this embodiment, the movable component 142 moves in the direction of rotation to adjust the oil return hole 131. Specifically, the base 1421 is installed on the air outlet pipe 13 at the position corresponding to the oil return hole 131. The base 1421 is provided with a connecting hole 14211 that communicates with the oil return hole 131. Multiple movable component bodies 1422 are provided. Multiple movable component bodies 1422 are connected to the base 1421, and each movable component body 1422 can move in conjunction around the center of the connecting hole 14211. That is, when the temperature sensing adjustment component 141 drives one movable component body 1422 to rotate, the other movable component bodies 1422 also rotate in a predetermined direction, so that each movable component body 1422 forms different opening degrees around the connecting hole 14211, thereby adjusting the connecting hole 14211 and thus adjusting the opening of the oil return hole 131. In this embodiment, the temperature-sensing adjustment element 141 can be a temperature-sensing expansion element 1411 or a heat-sensing bulb 1412.

[0058] Specifically, each movable component body 1422 is arranged in a ring around the base 1421. Each movable component body 1422 is provided with a first limiting part 14221. The base 1421 is provided with a plurality of second limiting parts 14212 corresponding to the positions of each first limiting part 14221. The first limiting part 14221 and the second limiting part 14212 are slidably connected. The plurality of second limiting parts 14212 are arranged in a circumferentially inclined manner.

[0059] In this embodiment, to ensure that each movable component body 1422 is stably connected to the base 1421 and can form different opening degrees around the center of the connecting hole 14211 in a predetermined direction, it is preferable to provide a first limiting part 14221 on each movable component body 1422, and to provide a plurality of second limiting parts 14212 on the base 1421 corresponding to the positions of each first limiting part 14221. The connection between the base 1421 and each movable component body 1422 is realized through the first limiting parts 14221 and the second limiting parts 14212, and the second limiting parts 14212 are arranged inclined sequentially along the circumference. Specifically, four movable component bodies 1422 are provided.

[0060] The tilting direction of the four moving parts body 1422 is combined Figure 10As shown, the movable body 1422 located in the lower left corner is connected to the temperature-sensing adjustment member 141. This movable body 1422 is inclined upwards from right to left. The next movable body 1422, moving clockwise, is inclined upwards from left to right. The next movable body 1422 is inclined downwards from left to right, and the last movable body 1422 is inclined downwards from right to left. Each movable body 1422 is in planar contact with its adjacent movable body 1422, and the sides of the four movable bodies 1422 that are in contact with each other form a cross structure. When one movable body 1422 moves along the inclined direction under the action of the temperature-sensing adjustment member 141, the other movable bodies 1422 also move along their respective inclined directions, causing the sides of the movable bodies 1422 that are in contact to separate, thus forming different degrees of opening around the center of the connecting hole 14211. The first limiting part 14221 is a limiting groove, and the second limiting part 14212 is a limiting pin. In this embodiment, the temperature-sensing adjustment element 141 is connected to one of the movable parts 1422. Under the action of the temperature-sensing adjustment element 141, the movable part 1422 moves along the inclined direction, thereby driving the other movable parts 1422 to move along their respective inclined directions to adjust the opening degree of the connecting hole 14211. When the gas-liquid separator 1 is running at high frequency, the inside of the gas-liquid separator cools down, the temperature-sensing adjustment element 141 contracts, and drives the movable parts 1422 connected to the temperature-sensing adjustment element 141 to move in the contraction direction, so that each movable part 1422 opens, the area of ​​the exposed connecting hole 14211 increases, the flow rate of refrigerant into the return oil hole 131 increases, and the high-frequency refrigerant flow rate is improved.

[0061] This invention also provides a compressor, including the gas-liquid separator described above.

[0062] 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 gas-liquid separator, comprising a separator housing having a gas-liquid separation chamber and an outlet pipe disposed in the gas-liquid separation chamber, wherein the outlet pipe is provided with an oil return hole, characterized in that, The gas-liquid separator also includes a liquid return volume adjustment device, which includes a temperature sensing adjustment element disposed in the gas-liquid separation chamber and a movable element disposed on the gas outlet pipe at a position corresponding to the oil return hole. The temperature sensing adjustment element is connected to the movable element, and the temperature sensing adjustment element can drive the movable element to move according to the temperature change in the gas-liquid separation chamber to adjust the opening of the oil return hole. The liquid return volume regulating device also includes a regulating component housing surrounding the outlet pipe. The regulating component housing has a receiving cavity for installing the temperature sensing regulating component. One end of the temperature sensing regulating component is fixedly connected to the regulating component housing. The regulating component housing has an outlet communicating with the receiving cavity. The other end of the temperature sensing regulating component is connected to a movable component through the outlet. The temperature-sensing regulating component includes a temperature-sensing expansion component, wherein the temperature-sensing expansion component has an expansion cavity, and the expansion cavity is filled with a temperature-sensing medium that expands or contracts according to temperature changes; or, the temperature-sensing regulating component includes a thermal temperature-sensing bulb that adjusts pressure according to temperature changes. When the temperature-sensing regulating component includes a temperature-sensing expansion component, the return liquid volume regulating device further includes an arc-shaped connecting plate. The arc-shaped connecting plate is fixedly disposed outside the air outlet pipe. The regulating component housing is fixed on the arc-shaped connecting plate. The arc-shaped connecting plate is provided with a return oil hole channel communicating with the return oil hole. The movable component is slidably disposed on the arc-shaped connecting plate. The other end of the temperature-sensing regulating component can drive the movable component to slide on the arc-shaped connecting plate to adjust the opening of the return oil hole channel. When the temperature-sensing regulating component includes a thermally sensitive bulb that adjusts pressure according to temperature changes, the other end of the temperature-sensing regulating component is connected to the movable component via a connecting assembly. The connecting assembly includes a connecting pipe, a hydraulic component, and a connecting rod. One end of the connecting pipe is connected to the temperature-sensing regulating component, and the other end of the connecting pipe is connected to one end of the hydraulic component. The other end of the hydraulic component is connected to one end of the connecting rod, and the other end of the connecting rod is connected to the movable component. The return fluid volume regulating device also includes a fixed seat, which is installed on the air outlet pipe. The movable component is slidably connected to the fixed seat. The fixed seat is provided with a flow hole communicating with the oil return hole. The temperature-sensing regulating component can drive the movable component to slide on the fixed seat through the connecting assembly to adjust the opening of the flow hole.

2. A compressor, characterized in that, Includes the gas-liquid separator as described in claim 1.

Images