Liquid storage device, air conditioner and vehicle

Abstract

The utility model discloses a liquid storage device, an air conditioner and a vehicle, the liquid storage device is used for the air conditioner, the liquid storage device comprises a liquid storage body and a gas-liquid separation piece, the liquid storage body is internally provided with a containing cavity, and the containing cavity is suitable for storing refrigerants; the gas-liquid separation part is arranged in the liquid storage body, a separation flow channel, an inlet and an outlet are formed in the gas-liquid separation part, the inlet and the outlet are communicated with the separation flow channel, the liquid storage body is provided with a liquid inlet communicated with the inlet and a liquid outlet communicated with the outlet, and the gas-liquid separation part is further provided with an exhaust hole communicated with the containing cavity. According to the liquid storage device, the gas-liquid separation part is integrated in the liquid storage body, and the gaseous refrigerant separated by the gas-liquid separation part is stored in the containing cavity of the liquid storage body, so that the liquid storage device is compact in structure, and the integration level of the air conditioner can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, in particular to a liquid storage device, an air conditioner and a vehicle. Background Art

[0002] In related technologies, in automobile air-conditioning systems, a liquid receiver is needed to store excess refrigerant in the automobile air-conditioning system, and a gas-liquid separator is also needed to separate the refrigerant in the liquid receiver from gas and liquid. The liquid receiver and the gas-liquid separator are designed separately, which takes up a lot of space and is not conducive to structural integration. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a liquid storage device that integrates a gas-liquid separator into a liquid storage body and stores the gaseous refrigerant separated by the gas-liquid separator in a receiving cavity of the liquid storage body, thereby making the liquid storage device compact and facilitating improved integration of the air conditioner.

[0004] The utility model also provides an air conditioner with the liquid storage device.

[0005] The utility model also provides a vehicle with the air conditioner.

[0006] According to the first aspect of the present invention, the liquid storage device is used for an air conditioner and includes: a liquid storage body having a accommodating cavity therein, and the accommodating cavity is suitable for storing refrigerant; a gas-liquid separator, the gas-liquid separator is arranged in the liquid storage body, and a separation flow channel and an inlet and an outlet connected to the separation flow channel are formed in the gas-liquid separator, the liquid storage body has a liquid inlet connected to the inlet and a liquid outlet connected to the outlet, and the gas-liquid separator also has an exhaust hole connected to the accommodating cavity.

[0007] According to the liquid storage device of the embodiment of the present invention, the gas-liquid separator is integrated into the liquid storage body, and the gaseous refrigerant separated by the gas-liquid separator is stored in the accommodating cavity of the liquid storage body, so that the liquid storage device has a compact structure, which is conducive to improving the integration of the air conditioner.

[0008] According to some embodiments of the present invention, the gas-liquid separator is configured to separate the gas-liquid mixture entering the separation channel by centrifugal force.

[0009] According to some embodiments of the present invention, the inner wall surface of the separation flow channel includes a first side wall, which extends along a raised arc toward the side in a first direction, and the inlet and the outlet are respectively formed at both ends of the first side wall in the extension direction, and the normal of one end of the first side wall toward the inlet is set at an angle to the flow direction of the refrigerant at the inlet position.

[0010] According to some embodiments of the present invention, the first side wall is an arc cylinder that is convex along one side facing the first direction.

[0011] According to some embodiments of the present invention, the inner wall surface of the separation channel also includes: a second side wall, the second side wall is arranged opposite to the first side wall in the first direction, at least a portion of the second side wall is formed as a first arc segment, the first arc segment extends along a raised arc line toward the other side in the first direction, and the two ends of the first side wall in the extension direction respectively cooperate with the two ends of the second side wall in the extension direction to define the inlet and the outlet.

[0012] According to some embodiments of the present invention, the first side wall is a circular arc cylindrical surface convex along one side toward the first direction, the first arc segment is a circular arc cylindrical surface convex along the other side toward the first direction, and the first side wall and the first arc segment are coaxially arranged.

[0013] According to some embodiments of the present invention, the second side wall also includes: a second arc segment, the second arc segment is connected to the end of the first arc segment close to the outlet, in the direction from the first arc segment toward the second arc segment, the second arc segment extends along an arc line protruding toward the first side wall, the end of the second arc segment away from the first arc segment cooperates with the first side wall to define the outlet, and in the first direction, the exhaust hole is arranged between the first side wall and the second side wall.

[0014] According to some embodiments of the present invention, the second arc segment is an arc cylindrical surface convex toward the first side wall.

[0015] According to some embodiments of the present invention, at the inlet position, the distance between the first side wall and the second side wall is D1, and at the outlet position, the distance between the first side wall and the second side wall is D2, and D1 and D2 satisfy: 0.5D1≤D2≤0.8D1.

[0016] According to some embodiments of the present invention, the inner wall surface of the separation channel also includes a separation top surface, which is connected to one side of the second direction of the first side wall and the second side wall, the second direction is perpendicular to the first direction, and the exhaust hole passes through the separation top surface and is arranged between the first side wall and the second side wall.

[0017] According to some embodiments of the present invention, an annular rib is provided on the outer surface of the gas-liquid separator, and the annular rib surrounds the outer peripheral side of the exhaust hole.

[0018] According to some embodiments of the present invention, the first side wall is an arc cylinder that is raised along one side toward the first direction, and the exhaust hole is a circular hole, and the exhaust hole is coaxially arranged with the first side wall.

[0019] According to some embodiments of the present invention, the first side wall is an arc cylinder with a radius of R1, the exhaust hole is a circular hole with a radius of R2, and at the inlet position, the distance between the first side wall and the second side wall is D1, and R1, R2 and D1 satisfy: R1-R2≥D1.

[0020] According to some embodiments of the present invention, the gas-liquid separation element is further formed with a liquid inlet channel, and the liquid inlet channel is connected to the upstream of the separation channel in the flow direction of the refrigerant.

[0021] According to some embodiments of the present invention, the liquid inlet channel is tangent to the inlet end of the separation channel.

[0022] According to some embodiments of the present invention, the outlet includes a first area and a second area, the first area is connected to the liquid outlet, and the second area is connected to the accommodating cavity.

[0023] According to some embodiments of the present invention, a concave groove is formed on the bottom wall of the accommodating cavity, and the gas-liquid separator is arranged in the groove.

[0024] According to some embodiments of the present invention, the liquid storage device further includes a filter, and the filter is disposed at the outlet position.

[0025] According to some embodiments of the present invention, the liquid storage device further includes a dryer, and the dryer is disposed in the accommodating cavity.

[0026] According to some embodiments of the present invention, the liquid storage body includes a cavity and a cover plate, the cavity has the accommodating cavity opening toward one side, and the cover plate is arranged at the opening to close the accommodating cavity.

[0027] According to some embodiments of the present invention, the liquid storage body is also formed with a connecting flow channel suitable for being connected in series to the refrigerant circuit of the air conditioner, and the connecting flow channel penetrates the liquid storage body along the thickness direction of the liquid storage body, and the connecting flow channel is separated from the accommodating cavity. The liquid storage device also includes: an expansion valve, and an expansion valve mounting hole connected to the connecting flow channel is formed on the liquid storage body, and the expansion valve is installed in the expansion valve mounting hole and is connected in series to the connecting flow channel.

[0028] According to some embodiments of the present invention, a first heat-insulating cavity is provided on a side of the communicating flow channel close to the accommodating cavity.

[0029] According to some embodiments of the present invention, the liquid storage body is further formed with a liquid flow channel suitable for being connected in series in a refrigerant circuit, and the liquid flow channel is separated from the accommodating cavity. The liquid storage device also includes: a temperature sensor, and a temperature sensor mounting hole connected to the liquid flow channel is formed on the liquid storage body. The temperature sensor is installed in the temperature sensor mounting hole for detecting the refrigerant temperature in the liquid flow channel.

[0030] According to some embodiments of the present invention, a second heat-insulating cavity is provided on a side of the liquid passage close to the accommodating cavity.

[0031] According to some embodiments of the present invention, the cross-section of the liquid storage device is rectangular.

[0032] An air conditioner according to an embodiment of the second aspect of the present invention includes: a condenser; an evaporator; and a liquid storage device according to the embodiment of the first aspect of the present invention, wherein the liquid storage device is located between the condenser and the evaporator.

[0033] According to the air conditioner of the embodiment of the present invention, by providing the above-mentioned liquid storage device, the gas-liquid separator is integrated into the liquid storage body, and the gas-liquid separator is configured to separate the gas-liquid mixture entering the gas-liquid separator by centrifugal force, which can improve the separation efficiency and make the liquid storage device structure compact, which is conducive to improving the integration of the air conditioner.

[0034] A vehicle according to an embodiment of the second aspect of the present invention includes: an air conditioner according to the embodiment of the first aspect of the present invention.

[0035] According to the vehicle of the embodiment of the present invention, by providing the above-mentioned air conditioner, the vehicle of the embodiment of the present invention, by providing the above-mentioned air conditioner, can improve not only the integration of the air conditioner but also the integration of the vehicle.

[0036] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0038] Figure 1 is a schematic diagram of a liquid storage device according to some embodiments of the present invention;

[0039] Figure 2 yes Figure 1 Exploded view of the liquid storage device;

[0040] Figure 3is a schematic diagram of a gas-liquid separation element according to some embodiments of the present utility model;

[0041] Figure 4 yes Figure 3 Schematic diagram of the gas-liquid separation component, with the dimensions of the separation flow channel marked.

[0042] Reference numerals:

[0043] 10. Liquid storage device;

[0044] 1. Liquid storage body; 11. Accommodation chamber; 111. Recess; 12. Cavity; 121. Opening; 13. Cover plate; 141. Liquid inlet; 142. Liquid outlet; 151. Communication channel; 152. Expansion valve mounting hole; 16. First insulation chamber; 171. Liquid flow channel; 172. Temperature sensor mounting hole; 18. Second insulation chamber;

[0045] 2. Gas-liquid separator; 21. Separation channel; 22. Inlet; 23. Outlet; 231. First region; 232. Second region; 24. First side wall; 25. Second side wall; 251. First arc segment; 252. Second arc segment; 26. Liquid inlet channel; 27. Separation top surface; 28. Annular rib; 29. ​​Exhaust hole;

[0046] 31. Filter; 32. Dryer. DETAILED DESCRIPTION

[0047] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0048] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0049] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0050] Reference below Figures 1-4 A liquid storage device 10 according to an embodiment of the present invention is described.

[0051] According to the liquid storage device 10 of the embodiment of the first aspect of the present utility model, the liquid storage device 10 is used for an air conditioner. The liquid storage device 10 includes a liquid storage body 1, and the liquid storage body 1 has a accommodating chamber 11. The accommodating chamber 11 is suitable for storing refrigerant. The liquid storage device 10 can be located between the condenser and the evaporator of the air conditioner. Part of the refrigerant flowing out of the condenser can be stored in the accommodating chamber 11. During the operation of the air conditioner, the air conditioner needs to self-regulate the flow rate of the refrigerant according to the temperature changes in the car or the room and the needs of the user. The load of the air conditioning system may be different in different time periods, especially during seasonal changes or at different times of the day. Storing refrigerant can provide additional refrigerant during high-load periods to meet higher cooling or heating needs. Storing refrigerant can provide sufficient refrigerant supply when the demand of the air conditioning system changes, ensuring the stable operation of the air conditioning system.

[0052] Optionally, the liquid storage body 1 includes a cavity 12 and a cover plate 13 . The cavity 12 includes a receiving cavity 11 facing an opening 121 on one side. The cover plate 13 is disposed on the opening 121 to seal the receiving cavity 11 .

[0053] Optionally, the liquid storage body 1 includes a cavity 12 , which has an accommodating cavity 11 with an opening 121 facing one side. Other parts of the air conditioner are covered at the opening 121 to seal the accommodating cavity 11 .

[0054] The liquid storage device 10 also includes a gas-liquid separator 2, which is disposed within the liquid storage body 1. The gas-liquid separator 2 can be stored within the accommodating chamber 11 of the liquid storage body 1, or the gas-liquid separator 2 can be stored within the liquid storage body 1 and separated from the accommodating chamber 11. A separation channel 21 and an inlet 22 and an outlet 23 connected to the separation channel 21 are formed within the gas-liquid separator 2. The liquid storage body 1 has a liquid inlet 141 connected to the inlet 22 and a liquid outlet 142 connected to the outlet 23. The gas-liquid separator 2 also has an exhaust hole 29 connected to the accommodating chamber 11. After the refrigerant undergoes gas-liquid separation in the gas-liquid separator 2, the gaseous refrigerant can be discharged into the accommodating chamber 11. The gaseous refrigerant is cooled into liquid refrigerant in the accommodating chamber 11, and the liquid refrigerant is discharged through the outlet 23 and the liquid outlet 142.

[0055] For example, the gas-liquid separator 2 may separate the gaseous refrigerant and the liquid refrigerant in a centrifugal manner.

[0056] For another example, the gas-liquid separator 2 can separate the gaseous refrigerant and the liquid refrigerant by utilizing the gravity difference between the gas and the liquid.

[0057] The liquid storage device 10 is located between the condenser and the evaporator of the air conditioner. Most of the refrigerant flowing out of the condenser is liquid refrigerant, but there may be some gaseous refrigerant in the liquid refrigerant. The refrigerant in the condenser enters the separation channel 21 through the liquid inlet 141 and the inlet 22. After gas-liquid separation in the separation channel 21, the liquid refrigerant flows to the subcooler of the condenser through the outlet 23 and the liquid outlet 142 for secondary cooling, and enters the evaporator after cooling again; the gaseous refrigerant is discharged into the accommodating chamber 11 through the exhaust hole 29, and can be cooled and liquefied into liquid refrigerant in the accommodating chamber 11.

[0058] When the temperature inside the car or indoors changes or the user changes his needs, the flow of the refrigerant needs to be self-regulated. The liquid refrigerant stored in the accommodating chamber 11 may need to participate in the operation of the air-conditioning system. The gaseous refrigerant stored in the accommodating chamber 11 can compress the liquid refrigerant stored in the accommodating chamber 11 to flow to the subcooler of the condenser to participate in the operation of the air-conditioning system.

[0059] Optionally, the refrigerant flowing out of the condenser can enter the separation channel 21 through the liquid inlet 141 and the inlet 22, and the excess refrigerant is stored in the accommodating chamber 11 through the outlet 23; optionally, the refrigerant flowing out of the condenser can enter the accommodating chamber 11 through the through hole connected to the accommodating chamber 11 and be stored in the accommodating chamber 11. When the air conditioner needs this part of the refrigerant in the later stage, the refrigerant in the accommodating chamber 11 can flow to the subcooler of the condenser through another through hole.

[0060] According to the liquid storage device 10 of the embodiment of the present utility model, the gas-liquid separator 2 is integrated into the liquid storage body 1, and the gaseous refrigerant separated by the gas-liquid separator 2 is stored in the accommodating cavity 11 of the liquid storage body 1, so that the liquid storage device 10 has a compact structure, which is conducive to improving the integration of the air conditioner.

[0061] According to some embodiments of the present invention, referring to Figure 1-Figure 3 The gas-liquid separator 2 is configured to separate the gas-liquid mixture entering the separation channel 21 by centrifugal force. The gas-liquid mixture is a mixture of gaseous refrigerant and liquid refrigerant. When the gas-liquid mixture flows in the separation channel 21, it is affected by the centrifugal force of the separation channel 21. The centrifugal force causes substances with different densities to be distributed in the separation channel 21 according to their density, so that the gaseous refrigerant and the liquid refrigerant are distributed in the separation channel 21 according to their density, so as to facilitate the separation of the gaseous refrigerant and the liquid refrigerant, which is conducive to improving the separation efficiency.

[0062] For example, compared with traditional gravity separation, centrifugal separation can significantly shorten the separation time because centrifugal force can provide a force much stronger than the earth's gravity, allowing gaseous refrigerant and liquid refrigerant to be separated quickly.

[0063] According to some embodiments of the present invention, referring to Figure 1-Figure 3 The inner wall surface of the separation channel 21 includes a first side wall 24, and the first side wall 24 is oriented in the first direction (for example, see the attached Figure 1 The raised arc extends on one side (in the e1 direction), and the inlet 22 and the outlet 23 are respectively formed at the two ends of the first side wall 24 in the extension direction. After the refrigerant enters the separation channel 21 through the inlet 22, the refrigerant can flow along the direction of the first side wall 24. The first side wall 24 is constructed to extend along the arc, that is, the refrigerant extends along the arc in the separation channel 21. The refrigerant is affected by centrifugal force, so that the gaseous refrigerant and the liquid refrigerant are distributed according to density in the separation channel 21, so as to facilitate the separation of the gaseous refrigerant and the liquid refrigerant, which is beneficial to improve the separation efficiency.

[0064] The normal of one end of the first side wall 24 toward the inlet 22 is set at an angle to the flow direction of the refrigerant at the position of the inlet 22. For example, the angle between the normal of one end of the first side wall 24 toward the inlet 22 and the flow direction of the refrigerant at the position of the inlet 22 can be set to 90° or less than 90°, so that the refrigerant can flow directly to the first side wall 24 at the inlet 22 and flow along the direction of the first side wall 24, so as to facilitate centrifugal separation of the refrigerant in the separation channel 21.

[0065] The one side in the first direction may be the side away from the separation channel 21 .

[0066] For example, the first side wall 24 may extend along a plurality of connected arcs with different radii.

[0067] According to some embodiments of the present invention, referring to Figure 1-Figure 3 The first sidewall 24 is a cylindrical arc surface that is raised along one side in the first direction. The inner side surface of the separation channel 21 has a certain height, allowing the separation channel 21 to accommodate a certain amount of refrigerant. When the refrigerant flows in the separation channel 21, it can flow along the cylindrical arc surface of the first sidewall 24 and be subjected to centrifugal force within the separation channel 21. The cylindrical arc surface can generate a large centrifugal force on the refrigerant, thereby improving the efficiency of refrigerant gas-liquid separation. For example, the first sidewall 24 can be a semicircular cylindrical arc surface.

[0068] According to some embodiments of the present invention, referring to Figure 1-Figure 3 The inner wall surface of the separation channel 21 further includes a second sidewall 25. The second sidewall 25 is arranged opposite the first sidewall 24 in the first direction, i.e., the first sidewall 24 is located on one side in the first direction, and the second sidewall 25 is located on the other side in the first direction. At least a portion of the second sidewall 25 is formed as a first arc segment 251. This may be a portion of the second sidewall 25 or the entire second sidewall 25.

[0069] The first arc segment 251 extends along a convex arc toward the other side in the first direction, and the two ends of the first side wall 24 in the extension direction cooperate with the two ends of the second side wall 25 in the extension direction to define an inlet 22 and an outlet 23. After the refrigerant enters the separation channel 21 through the inlet 22, the refrigerant can flow along the direction of the first side wall 24 and the second side wall 25. The first side wall 24 and the second side wall 25 are both configured to extend along an arc, that is, the refrigerant extends along the arc in the separation channel 21. The refrigerant is subjected to centrifugal force, so that the gaseous refrigerant and the liquid refrigerant are distributed according to density in the separation channel 21, so as to facilitate the separation of the gaseous refrigerant and the liquid refrigerant, which is conducive to improving the separation efficiency.

[0070] According to some embodiments of the present invention, referring to Figure 1-Figure 3 The first sidewall 24 is a cylindrical arc surface that is convex along one side facing the first direction, and the first arc segment 251 is a cylindrical arc surface that is convex along the other side facing the first direction. When the refrigerant flows in the separation channel 21, it can flow along the cylindrical arc surface of the first sidewall 24 and the cylindrical arc surface of the second sidewall 25 and is subjected to centrifugal force in the separation channel 21. The cylindrical arc surface can generate a large centrifugal force on the refrigerant, thereby improving the efficiency of the refrigerant gas-liquid separation.

[0071] The first side wall 24 and the first arc segment 251 are coaxially arranged. When the refrigerant flows through the separation channel 21, the refrigerant is subjected to the centrifugal force in the separation channel 21, and the gaseous refrigerant can be separated from the liquid refrigerant and flow toward the center of the first side wall 24 and the second side wall 25. The first side wall 24 and the second side wall 25 are coaxially arranged. The gaseous refrigerant separated from the liquid refrigerant can flow to the common center of the first side wall 24 and the second side wall 25, so that the gaseous refrigerant can be discharged from the exhaust hole 29.

[0072] According to some embodiments of the present invention, referring to Figure 1-Figure 3 The second side wall 25 also includes: a second arc segment 252, the second arc segment 252 is connected to the end of the first arc segment 251 close to the outlet 23, and in the direction from the first arc segment 251 toward the second arc segment 252, the second arc segment 252 extends along an arc line protruding toward the first side wall 24, and the end of the second arc segment 252 away from the first arc segment 251 cooperates with the first side wall 24 to define the outlet 23. In the first direction, the exhaust hole 29 is arranged between the first side wall 24 and the second side wall 25.

[0073] When the liquid refrigerant flows out of the separation channel 21 through the outlet 23 , the second arc segment 252 extends along an arc line convex toward the first side wall 24 . The second arc segment 252 can guide the liquid refrigerant to flow out of the separation channel 21 .

[0074] At the same time, after the refrigerant enters the separation channel 21 through the inlet 22, the refrigerant can flow along the direction of the first side wall 24. The refrigerant is affected by centrifugal force, so that the gaseous refrigerant and the liquid refrigerant are separated in the separation channel 21. The separated liquid refrigerant is discharged from the outlet 23, and the separated gaseous refrigerant flows to the middle part of the first side wall 24. The second arc segment 252 can block part of the liquid refrigerant at the position of the outlet 23. Part of the liquid refrigerant refluxes along the second arc segment 252 and presses the gaseous refrigerant into the exhaust hole 29, and is discharged from the exhaust hole 29 into the accommodating cavity 11.

[0075] For example, the second arc segment 252 is closer to the separation channel 21 than the first arc segment 251. When the liquid refrigerant flows to the outlet 23, the second arc segment 252 can block part of the liquid refrigerant at the outlet 23, so that part of the liquid refrigerant flows back along the second arc segment 252, and presses the gaseous refrigerant into the exhaust hole 29 and is discharged from the exhaust hole 29 into the accommodating cavity 11.

[0076] According to some embodiments of the present invention, referring to Figure 1-Figure 3The second arc segment 252 is a cylindrical arc surface that bulges toward the first sidewall 24. When the refrigerant flows in the separation channel 21, the second arc segment 252 blocks some of the liquid refrigerant from flowing out of the outlet 23. The second arc segment 252 is designed as a cylindrical arc surface, which can guide some of the liquid refrigerant toward the exhaust hole 29, thereby forcing the gaseous refrigerant into the exhaust hole 29.

[0077] According to some embodiments of the present invention, referring to Figures 1-4 At the inlet 22, the distance between the first side wall 24 and the second side wall 25 is D1, and at the outlet 23, the distance between the first side wall 24 and the second side wall 25 is D2, and D1 and D2 satisfy the following relationship: 0.5D1≤D2≤0.8D1. The distance between the first side wall 24 and the second side wall 25 at the inlet 22 is greater than the distance between the first side wall 24 and the second side wall 25 at the outlet 23, allowing more refrigerant to enter the separation channel 21. At the same time, after separation, the rate at which the liquid refrigerant flows out of the outlet 23 is less than the rate at which the refrigerant flows out of the inlet 22, allowing the refrigerant at the outlet 23 to press the separated gaseous refrigerant into the exhaust hole 29.

[0078] For example, the relationship between D1 and D2 may be D2=0.5D1, D2=0.6D1, D2=0.7D1, or D2=0.8D1.

[0079] According to some embodiments of the present invention, referring to Figure 1-Figure 3 The inner wall surface of the separation channel 21 further includes a separation top surface 27, which is connected to the first side wall 24 and the second side wall 25 in the second direction (for example, see the attached Figure 3 The second direction is perpendicular to the first direction. The exhaust hole 29 penetrates the separation top surface 27 and is arranged between the first side wall 24 and the second side wall 25. When the refrigerant passes through the separation flow channel 21 for gas-liquid separation, the gaseous refrigerant has a lower density and, under the pressure of the liquid refrigerant, flows upward and is discharged through the exhaust hole 29.

[0080] The second direction is the up-down direction, and the separation top surface 27 is connected above the first side wall 24 and the second side wall 25 .

[0081] According to some embodiments of the present invention, referring to Figure 1-Figure 2 The outer surface of the gas-liquid separator 2 is provided with an annular rib 28, which surrounds the outer peripheral side of the exhaust hole 29. The gaseous refrigerant discharged through the exhaust hole 29 can flow along the internal channel of the annular rib 28. The annular rib 28 can guide the discharge of the gaseous refrigerant.

[0082] For example, the gas-liquid separator 2 can be located in the accommodating cavity 11, and the annular rib 28 can be located in the accommodating cavity 11. The annular rib 28 is arranged to protrude from the outer surface of the gas-liquid separator 2, which can prevent the refrigerant stored in the accommodating cavity 11 from entering the accommodating cavity 11 through the exhaust hole 29.

[0083] According to some embodiments of the present invention, referring to Figure 1-Figure 2 The first side wall 24 is a cylindrical arc surface that is raised along one side facing the first direction. The exhaust hole 29 is a circular hole and is coaxially arranged with the first side wall 24. After the refrigerant enters the separation channel 21 through the inlet 22, the refrigerant can flow along the direction of the first side wall 24. The refrigerant is subjected to the centrifugal force, so that the gaseous refrigerant and the liquid refrigerant are separated in the separation channel 21. The separated liquid refrigerant flows along the direction of the first side wall 24 to the outlet 23. The separated gaseous refrigerant flows toward the middle of the first side wall 24. The exhaust hole 29 is coaxially arranged with the first side wall 24. The gaseous refrigerant can be discharged into the accommodating cavity 11 through the exhaust hole.

[0084] According to some embodiments of the present invention, referring to Figures 1-4 The first sidewall 24 is an arc-shaped cylindrical surface with a radius of R1, and the exhaust hole 29 is a circular hole with a radius of R2. At the inlet 22, the distance between the first sidewall 24 and the second sidewall 25 is D1, and R1, R2, and D1 satisfy the following: R1-R2≥D1. Within the separation channel 21, the distance between the first sidewall 24 and the exhaust hole 29 should be greater than or equal to the distance between the first sidewall 24 and the second sidewall 25 at the inlet 22, so that the refrigerant has sufficient separation space within the separation channel 21.

[0085] According to some embodiments of the present invention, referring to Figure 1-Figure 3 The gas-liquid separation element 2 is also formed with a liquid inlet channel 26, which is connected to the upstream of the separation channel 21 in the refrigerant flow direction. There is a buffer space before the refrigerant flows into the separation channel 21. After the buffering in the liquid inlet channel 26, more centrifugal force can be obtained after the refrigerant flows into the separation channel 21.

[0086] According to some embodiments of the present invention, referring to Figure 1-Figure 3 The liquid inlet channel 26 is tangent to the inlet 22 end of the separation channel 21. When the refrigerant enters the separation channel 21 through the liquid inlet channel 26, the refrigerant can enter the separation channel 21 along the first side wall 24 and be separated in the separation channel 21.

[0087] According to some embodiments of the present invention, referring to Figure 1-Figure 3The outlet 23 includes a first region 231 and a second region 232. The first region 231 is connected to the liquid outlet 142, and the second region 232 is connected to the accommodating chamber 11. After the refrigerant passes through the separation channel 21 and undergoes gas-liquid separation, the air-conditioning system is adjusted according to the user's needs. Part of the refrigerant is discharged through the first region 231 of the outlet 23 and the liquid outlet 142, and part of the refrigerant flows into the accommodating chamber 11 through the second region 232 of the outlet 23. This allows the refrigerant after gas-liquid separation to enter the accommodating chamber 11, and at the same time, reduces the number of openings on the liquid storage body 1 for the refrigerant to flow into the accommodating chamber 11.

[0088] For example, the second region 232 is located above the gas-liquid separator 2 , and the first region 231 is located on the same side of the gas-liquid separator 2 as the refrigerant in the separation channel 21 , so that the refrigerant can flow out of the separation channel 21 along the first region 231 .

[0089] According to some embodiments of the present invention, referring to Figure 1-Figure 2 The bottom wall of the accommodating chamber 11 is formed with a concave groove 111, and the gas-liquid separator 2 is arranged in the groove 111. The gas-liquid separator 2 can be installed in the accommodating chamber 11, which can further improve the integration between the gas-liquid separator 2 and the liquid storage body 1. The groove 111 can also play a role in pre-positioning the installation of the gas-liquid separator 2. The gaseous refrigerant discharged from the exhaust hole 29 can be discharged to the top of the gas-liquid separator 2. At the same time, the excess refrigerant flowing out of the gas-liquid separator 2 can also be stored above the gas-liquid separator 2. When the air-conditioning system needs more refrigerant to participate in cooling or heating according to the needs of the user, the refrigerant stored in the accommodating chamber 11 can participate in the cooling or heating work of the air conditioner again through the outlet 23 and the liquid outlet 142 of the gas-liquid separator 2.

[0090] For another example, after the gas-liquid separator 2 is installed in the groove 111 of the accommodating chamber 11 , the outer surface of the gas-liquid separator 2 is coplanar with the bottom wall of the accommodating chamber 11 defining the groove 111 .

[0091] According to some embodiments of the present invention, referring to Figure 1-Figure 2 The liquid storage device 10 also includes a filter 31, which is arranged at the outlet 23. The liquid refrigerant flowing out of the separation channel 21 can be filtered by the filter 31 and then flow to the accommodating chamber 11 or the liquid outlet 142. The filter 31 can filter solid particles in the liquid refrigerant, such as metal debris, welding slag, dust, etc., to prevent these impurities from clogging small channels in the air-conditioning system, such as expansion valves, capillaries, etc., thereby ensuring the normal operation of the air-conditioning system and extending its service life.

[0092] For example, the filter 31 is generally made of a metal mesh or other filter materials, and can intercept larger impurities.

[0093] According to some embodiments of the present invention, referring to Figure 1-Figure 2 The liquid storage device 10 also includes a dryer 32, which is disposed in the accommodating chamber 11. The dryer 32 is used to dry the refrigerant in the accommodating chamber 11, mainly for removing moisture and impurities in the refrigerant to ensure the normal operation of the air conditioner and extend its service life. A hole is opened in the side wall of the accommodating chamber 11, and the dryer 32 is installed in the hole. The dryer 32 is arranged on the bottom wall adjacent to the accommodating chamber 11 to facilitate contact between the dryer 32 and the refrigerant in the accommodating chamber 11, thereby drying the refrigerant in the accommodating chamber 11.

[0094] For example, the dryer 32 may include a shell and a hygroscopic material located inside the shell. The hygroscopic material includes silica gel, molecular sieve, etc. These materials have good hygroscopic properties and can effectively absorb moisture in the refrigerant.

[0095] According to some embodiments of the present invention, referring to Figure 1-Figure 2 The liquid storage body 1 includes a cavity 12 and a cover plate 13. The cavity 12 has a accommodating cavity 11 facing an opening 121 on one side. The cover plate 13 is covered at the opening 121 to close the accommodating cavity 11. The gas-liquid separator 2 and the filter 31 can be placed into the accommodating cavity 11 through the opening 121, which can facilitate the assembly of the gas-liquid separator 2 and the filter 31; the liquid inlet 141 and the liquid outlet 142 can both be set on the cavity 12 or the cover plate 13.

[0096] For example, the cavity 12 and the cover plate 13 may be assembled by welding, or a sealing ring may be provided between the cavity 12 and the cover plate 13 and the cavity 12 and the cover plate 13 may be assembled by fixing with bolts.

[0097] According to some embodiments of the present invention, referring to Figure 1-Figure 2 The liquid storage body 1 is also formed with a connecting flow channel 151 suitable for being connected in series to the refrigerant circuit of the air conditioner. The connecting flow channel 151 penetrates the liquid storage body 1 along the thickness direction of the liquid storage body 1. The connecting flow channel 151 is separated from the accommodating chamber 11. The liquid storage device 10 also includes: an expansion valve. An expansion valve mounting hole 152 communicating with the connecting flow channel 151 is formed on the liquid storage body 1. The expansion valve is mounted on the expansion valve mounting hole 152 and is connected in series to the connecting flow channel 151.

[0098] The refrigerant flowing out of the gas-liquid separator 2 passes through the secondary cooling of the subcooler of the condenser, flows from the subcooler to the connecting flow channel 151, and passes through the expansion valve connected to the connecting flow channel 151. The expansion valve can control the flow of the refrigerant. According to the needs of the air-conditioning system, the expansion valve can adjust the opening degree, thereby changing the flow of the refrigerant to ensure that the flow of the refrigerant in the evaporator can meet the needs of cooling or heating.

[0099] According to some embodiments of the present invention, referring to Figure 1-Figure 2 A first heat-insulating cavity 16 is provided on the side of the connecting flow channel 151 close to the accommodating cavity 11. The first heat-insulating cavity 16 can reduce the efficiency of heat exchange between the refrigerant in the connecting flow channel 151 and the liquid storage body 1, thereby reducing the ineffective heat exchange of the refrigerant and improving the effective heat exchange efficiency of the air conditioner.

[0100] For example, the first heat-insulating cavity 16 passes through the liquid storage body 1 along the thickness direction of the liquid storage body 1 , or may be a groove body provided on the liquid storage body 1 .

[0101] According to some embodiments of the present invention, referring to Figure 1-Figure 2 The liquid storage body 1 is also formed with a liquid flow channel 171 suitable for being connected in series in the refrigerant circuit. The liquid flow channel 171 is separated from the accommodating chamber 11. The liquid storage device 10 also includes: a temperature sensor. A temperature sensor mounting hole 172 communicating with the liquid flow channel 171 is formed on the liquid storage body 1. The temperature sensor is installed in the temperature sensor mounting hole 172 for detecting the refrigerant temperature in the liquid flow channel 171.

[0102] The refrigerant flowing out of the evaporator flows through liquid flow channel 171 to the compressor. The temperature sensor can detect the refrigerant temperature in liquid flow channel 171 and monitor the cooling or heating efficiency of the air conditioning system. If the temperature is abnormal, there may be a problem with the air conditioning system, which requires timely inspection and adjustment. The expansion valve opening can also be adjusted based on the detected refrigerant temperature in liquid flow channel 171 to control the refrigerant flow entering the evaporator and ensure that the evaporator's superheat is within an appropriate range.

[0103] According to some embodiments of the present invention, referring to Figure 1-Figure 2 A second insulation chamber 18 is provided on the side of the liquid flow channel 171 close to the accommodating chamber 11. The second insulation chamber 18 can reduce the efficiency of heat exchange between the refrigerant in the communicating flow channel 151 and the liquid storage body 1, thereby reducing the ineffective heat exchange of the refrigerant and improving the effective heat exchange efficiency of the air conditioner.

[0104] For example, the second heat-insulating cavity 18 passes through the liquid storage body 1 along the thickness direction of the liquid storage body 1 , or may be a groove body provided on the liquid storage body 1 .

[0105] Integrating the communication flow channel 151, the liquid flow channel 171, the expansion valve mounting hole 152 and the temperature sensor mounting hole 172 on the liquid storage flow path can reduce the occupied space and reduce the cost.

[0106] According to some embodiments of the present invention, referring to Figure 1-Figure 2 The cross section of the liquid storage device 10 is rectangular. Designing the liquid storage device 10 as a square body can make the liquid storage device 10 more regular and reduce the space occupied by the liquid storage device 10.

[0107] The air conditioner according to the second embodiment of the present invention includes: a condenser; an evaporator; and the liquid storage device 10 according to the first embodiment of the present invention, the liquid storage device 10 being located between the condenser and the evaporator.

[0108] The liquid storage body 1 is also provided with fixing holes, through which bolts are passed and fixed to the condenser and evaporator.

[0109] The condenser includes a water cooler and a subcooler. The subcooler is located on the side of the water cooler near the liquid storage device 10. The refrigerant flowing out of the water cooler passes through the internal through-hole of the subcooler and flows from the liquid inlet 141 on the liquid storage body 1 to the inlet 22. It enters the liquid inlet channel 26 through the inlet 22 connected to the liquid inlet 141 and then enters the separation channel 21. When flowing in the separation channel 21, it is affected by centrifugal force and undergoes gas-liquid separation in the gas-liquid separator 2. The gaseous refrigerant is discharged into the accommodating chamber 11 through the exhaust hole 29. The liquid refrigerant flows into the subcooler through the outlet 23 and the liquid outlet 142 connected to the outlet 23, and is secondary cooled in the subcooler. After the cooled refrigerant flows out of the subcooler, it flows from the outlet of the subcooler into the connecting channel 151 integrated in the liquid storage body 1. The expansion valve is connected to the connecting channel 151, and the flow regulation and throttling process of the refrigerant is realized by the expansion valve. The refrigerant flowing out of the expansion valve enters the evaporator through the connecting channel 151, where the refrigerant realizes heat exchange. The refrigerant that completes the heat exchange flows out from the side of the evaporator and flows into the liquid flow channel 171 of the integrated liquid storage device 10 and flows to the compressor.

[0110] According to the air conditioner of the embodiment of the present invention, by providing the above-mentioned liquid storage device 10, the gas-liquid separator 2 is integrated into the liquid storage body 1, and the gas-liquid separator 2 is configured to separate the gas-liquid mixture entering the gas-liquid separator 2 by centrifugal force, which can improve the separation efficiency and make the liquid storage device 10 compact in structure, which is conducive to improving the integration of the air conditioner.

[0111] A vehicle according to an embodiment of the second aspect of the present invention includes: an air conditioner according to the embodiment of the first aspect of the present invention.

[0112] The air conditioner is an air conditioner used in a vehicle.

[0113] According to the vehicle of the embodiment of the present utility model, by providing the above-mentioned air conditioner, not only the integration of the air conditioner can be improved, but also the integration of the vehicle can be improved.

[0114] Refer to the following Figures 1-4 A liquid storage device 10 and an air conditioner having the same according to an embodiment of the present invention are described.

[0115] The air conditioner includes a condenser, an evaporator and a liquid storage device 10 located between the condenser and the evaporator. The liquid storage device 10 is provided with fixing holes, which can be used to fix the liquid storage device 10 between the condenser and the evaporator.

[0116] The liquid storage device 10 includes a liquid storage body 1 and a gas-liquid separator 2. The liquid storage body 1 includes a cavity 12 and a cover 13. The cavity 12 has a receiving chamber 11 with an opening 121 on one side. The cover 13 is provided at the opening 121 to seal the receiving chamber 11. The gas-liquid separator 2 is located within the receiving chamber 11, and a recessed groove 111 is formed on the bottom wall of the receiving chamber 11. The gas-liquid separator 2 is disposed within the recess 111. A separation channel 21 and a liquid inlet channel 26 connected upstream of the separation channel 21 are formed in the gas-liquid separator 2. The gas-liquid separator 2 has an inlet 22 connected to the liquid inlet channel 26 and the separation channel 21, and an outlet 23 connected to the separation channel 21. The liquid storage body 1 has a liquid inlet 141 connected to the inlet 22 and a liquid outlet 142 connected to the outlet 23. The gas-liquid separator 2 also has an exhaust hole 29 connected to the accommodating chamber 11. The outlet 23 has a first area 231 and a second area 232. The first area 231 is connected to the liquid outlet 142, and the second area 232 is connected to the accommodating chamber 11.

[0117] The inner wall surface of the separation channel 21 includes a first side wall 24 and a second side wall 25, which are spaced apart along a first direction. The first side wall 24 is a cylindrical arc surface that is raised along one side facing the first direction. The second side wall 25 includes a first arc segment 251 and a second arc segment 252 that are connected. The first arc segment 251 is a cylindrical arc surface that is raised along the other side facing the first direction, and the second arc segment 252 is a cylindrical arc surface that is raised along the first side wall 24. The gas-liquid separator 2 also includes a separation top surface 27, which is connected to one side of the first side wall 24 and the second side wall 25 in a second direction perpendicular to the first direction. The exhaust hole 29 passes through the separation top surface 27 and is arranged between the first side wall 24 and the second side wall 25. The first side wall 24, the second side wall 25, and the exhaust hole 29 are coaxially arranged. An annular rib 28 is provided on the outer surface of the gas-liquid separator 2 . The annular rib 28 surrounds the outer periphery of the exhaust hole 29 and extends toward the accommodating cavity 11 .

[0118] At the inlet 22, the distance between the first sidewall 24 and the second sidewall 25 is D1. At the outlet 23, the distance between the first sidewall 24 and the second sidewall 25 is D2, and D1 and D2 satisfy the following relationship: 0.5D1≤D2≤0.8D1. The first sidewall 24 is a circular cylindrical surface with a radius of R1, and the exhaust hole 29 is a circular hole with a radius of R2. At the inlet 22, the distance between the first sidewall 24 and the second sidewall 25 is D1, and R1, R2, and D1 satisfy the following relationship: R1-R2≥D1.

[0119] When the refrigerant flows through the separation channel 21, the refrigerant is affected by centrifugal force in the separation channel 21, and the gaseous refrigerant can be separated from the liquid refrigerant and flow toward the center of the first side wall 24, that is, toward the exhaust hole 29. The liquid refrigerant can flow to the outlet 23. The second arc segment 252 located at the outlet 23 serves to block part of the liquid refrigerant from flowing out of the outlet 23, so that part of the refrigerant refluxes to press the gaseous refrigerant into the exhaust hole 29.

[0120] The liquid storage device 10 further includes a filter 31 , which is disposed at the outlet 23 . The liquid refrigerant flowing out of the separation channel 21 can be filtered by the filter 31 before flowing into the accommodating chamber 11 or the liquid outlet 142 .

[0121] Liquid storage device 10 also includes a dryer 32, which is disposed within chamber 11. Dryer 32 is used to dry the refrigerant within chamber 11, primarily removing moisture and impurities from the refrigerant to ensure proper operation of the air conditioner and extend its service life. Dryer 32 is positioned adjacent to the bottom wall of chamber 11, allowing for easy contact between dryer 32 and the refrigerant within chamber 11, thereby drying the refrigerant.

[0122] The liquid storage body 1 also has a connecting flow channel 151 suitable for serial connection to the refrigerant circuit of the air conditioner. The connecting flow channel 151 extends through the liquid storage body 1 along its thickness and is separated from the accommodating chamber 11. The liquid storage device 10 also includes an expansion valve. The liquid storage body 1 has an expansion valve mounting hole 152 formed therein, which communicates with the connecting flow channel 151. The expansion valve is mounted in the expansion valve mounting hole 152 and serially connected to the connecting flow channel 151. A first thermal insulation chamber 16 is provided on the side of the connecting flow channel 151 near the accommodating chamber 11.

[0123] The liquid storage body 1 also has a liquid flow channel 171 adapted for serial connection to a refrigerant circuit. The liquid flow channel 171 is separated from the accommodating chamber 11. The liquid storage device 10 also includes a temperature sensor. The liquid storage body 1 has a temperature sensor mounting hole 172 formed therein that communicates with the liquid flow channel 171. The temperature sensor is mounted within the temperature sensor mounting hole 172 to detect the temperature of the refrigerant in the liquid flow channel 171. A second thermal insulation chamber 18 is provided on the side of the liquid flow channel 171 that is adjacent to the accommodating chamber 11.

[0124] The refrigerant flowing out of the water cooler passes through the internal through-hole of the subcooler and flows from the liquid inlet 141 on the liquid storage body 1 to the inlet 22. It enters the liquid inlet channel 26 through the inlet 22 connected to the liquid inlet 141 and then enters the separation channel 21. When flowing in the separation channel 21, it is affected by centrifugal force and undergoes gas-liquid separation in the gas-liquid separator 2. The gaseous refrigerant is discharged into the accommodating cavity 11 through the exhaust hole 29. The liquid refrigerant flows into the subcooler through the outlet 23 and the liquid outlet 142 connected to the outlet 23, where the refrigerant is secondary cooled. After the cooled refrigerant flows out of the subcooler, it flows from the outlet of the subcooler into the connecting channel 151 integrated in the liquid storage body 1. The expansion valve is connected to the connecting channel 151, and the flow regulation and throttling process of the refrigerant is achieved through the expansion valve. The refrigerant flowing out of the expansion valve enters the evaporator through the connecting channel 151, and the refrigerant realizes heat exchange in the evaporator. The refrigerant that completes the heat exchange flows out from the side of the evaporator and flows into the liquid flow channel 171 of the integrated liquid storage device 10 and flows to the compressor. The temperature sensor in the liquid flow channel 171 can detect the refrigerant temperature in the liquid flow channel 171, and can monitor the cooling or heating efficiency of the air-conditioning system. If the temperature is abnormal, there may be a problem with the air-conditioning system, which needs to be checked and adjusted in time; the opening of the expansion valve can also be adjusted according to the detected temperature of the refrigerant in the liquid flow channel 171 to control the refrigerant flow entering the evaporator and ensure that the superheat of the evaporator is within an appropriate range.

[0125] Throughout this specification, references to terms such as "some embodiments," "optionally," "further," or "some examples" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0126] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A liquid storage device for an air conditioner, characterized in that: include: A liquid storage body, wherein the liquid storage body has a receiving cavity therein, and the receiving cavity is suitable for storing refrigerant; A gas-liquid separator is arranged in the liquid storage body, and a separation flow channel and an inlet and an outlet connected to the separation flow channel are formed in the gas-liquid separator. The liquid storage body has a liquid inlet connected to the inlet and a liquid outlet connected to the outlet. The gas-liquid separator also has an exhaust hole connected to the accommodating cavity.

2. The liquid storage device according to claim 1, characterized in that The gas-liquid separator is configured to separate the gas-liquid mixture entering the separation channel by centrifugal force.

3. The liquid storage device according to claim 2, characterized in that The inner wall surface of the separation channel includes a first side wall, which extends along a raised arc toward one side in a first direction. The inlet and the outlet are respectively formed at both ends of the first side wall in the extension direction, and the normal of one end of the first side wall toward the inlet is set at an angle to the refrigerant flow direction at the inlet position.

4. The liquid storage device according to claim 3, characterized in that The first side wall is an arc cylindrical surface that is convex along one side facing the first direction.

5. The liquid storage device according to claim 3, characterized in that The inner wall surface of the separation channel also includes: a second side wall, which is arranged opposite to the first side wall in the first direction, at least a portion of the second side wall is formed as a first arc segment, and the first arc segment extends along a raised arc line toward the other side in the first direction, and the two ends of the first side wall in the extension direction respectively cooperate with the two ends of the second side wall in the extension direction to define the inlet and the outlet.

6. The liquid storage device according to claim 5, characterized in that The first sidewall is an arc cylindrical surface convex along one side in the first direction, the first arc segment is an arc cylindrical surface convex along the other side in the first direction, and the first sidewall and the first arc segment are coaxially arranged.

7. The liquid storage device according to claim 5, characterized in that The second side wall also includes: a second arc segment, the second arc segment is connected to the end of the first arc segment close to the outlet, in the direction from the first arc segment toward the second arc segment, the second arc segment extends along an arc line protruding toward the first side wall, the end of the second arc segment away from the first arc segment cooperates with the first side wall to define the outlet, and in the first direction, the exhaust hole is arranged between the first side wall and the second side wall.

8. The liquid storage device according to claim 7, characterized in that The second arc segment is an arc cylindrical surface convex toward the first side wall.

9. The liquid storage device according to claim 5, characterized in that At the inlet position, the distance between the first side wall and the second side wall is D1, and at the outlet position, the distance between the first side wall and the second side wall is D2, and D1 and D2 satisfy: 0.5D1≤D2≤0.8D1.

10. The liquid storage device according to claim 5, characterized in that The inner wall surface of the separation channel also includes a separation top surface, which is connected to one side of the second direction of the first side wall and the second side wall, the second direction is perpendicular to the first direction, and the exhaust hole passes through the separation top surface and is arranged between the first side wall and the second side wall.

11. The liquid storage device according to claim 10, characterized in that An annular rib is provided on the outer surface of the gas-liquid separator, and the annular rib surrounds the outer peripheral side of the exhaust hole.

12. The liquid storage device according to claim 10, characterized in that The first side wall is an arc cylindrical surface that is convex along one side facing the first direction. The exhaust hole is a circular hole, and the exhaust hole is coaxially arranged with the first side wall.

13. The liquid storage device according to claim 12, characterized in that The first side wall is an arc cylinder with a radius of R1, the exhaust hole is a circular hole with a radius of R2, and at the inlet position, the distance between the first side wall and the second side wall is D1, and R1, R2 and D1 satisfy: R1-R2≥D1.

14. The liquid storage device according to claim 1, characterized in that The gas-liquid separation element is further formed with a liquid inlet flow channel, which is connected to the upstream of the separation flow channel in the flow direction of the refrigerant.

15. The liquid storage device according to claim 14, characterized in that: The liquid inlet channel is tangent to the inlet end of the separation channel.

16. The liquid storage device according to claim 1, characterized in that The outlet includes a first area and a second area, the first area is communicated with the liquid outlet, and the second area is communicated with the accommodating chamber.

17. The liquid storage device according to claim 1, characterized in that The bottom wall of the accommodating cavity is formed with a concave groove, and the gas-liquid separator is arranged in the groove.

18. The liquid storage device according to claim 1, characterized in that The liquid storage device further includes a filter, and the filter is arranged at the outlet position.

19. The liquid storage device according to claim 1, characterized in that The liquid storage device further includes a dryer, which is disposed in the accommodating cavity.

20. The liquid storage device according to claim 1, wherein The liquid storage body includes a cavity and a cover plate. The cavity is provided with the accommodating cavity opened toward one side. The cover plate is arranged at the opening to close the accommodating cavity.

21. The liquid storage device according to claim 1, characterized in that The liquid storage body is further formed with a communication channel suitable for being serially connected to the refrigerant circuit of the air conditioner. The communication channel penetrates the liquid storage body along the thickness direction of the liquid storage body and is separated from the accommodating cavity. The liquid storage device further includes an expansion valve. An expansion valve mounting hole communicating with the communication channel is formed on the liquid storage body. The expansion valve is mounted in the expansion valve mounting hole and is connected in series to the communication channel.

22. The liquid storage device according to claim 21, characterized in that A first heat-insulating cavity is provided on one side of the communicating flow channel close to the accommodating cavity.

23. The liquid storage device according to claim 1, characterized in that The liquid storage body is further formed with a liquid flow channel suitable for being connected in series in a refrigerant circuit, and the liquid flow channel is separated from the accommodating cavity. The liquid storage device further includes a temperature sensor. A temperature sensor mounting hole communicating with the liquid flow channel is formed on the liquid storage body. The temperature sensor is mounted in the temperature sensor mounting hole to detect the refrigerant temperature in the liquid flow channel.

24. The liquid storage device according to claim 23, characterized in that A second heat-insulating cavity is provided on one side of the liquid passage close to the accommodating cavity.

25. The liquid storage device according to any one of claims 1 to 24, characterized in that: The cross section of the liquid storage device is rectangular.

26. An air conditioner, characterized in that: include: condenser; evaporator; The liquid storage device according to any one of claims 1 to 25, wherein the liquid storage device is located between the condenser and the evaporator.

27. A vehicle, characterized in that: include: The air conditioner according to claim 26.

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